JPH1079317A - Method and device for stacking iron core amorphous magnetic alloy thin belt - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of stacking a plurality of unit laminates which are formed respectively by laminating amorphous magnetic alloy thin belt so as to obtain a laminated block used for forming a wound iron core. SOLUTION: The tip of a composite strip AS comprising a plurality of laminates of amorphous magnetic alloy thin belts is clamped by clamps SF, and SF2 at a clamping position set near to a pair of shears 22. The clamp SF1 or the clamp SF2 is moved to pull out the strip AS by a prescribed length, the strip AS is sheared by the shears 22 into a rectangular composite sheet. The composite sheets are successively laminated into a unit laminate, and the formed unit laminates are collectively step-sent by a prescribed distance in a feeding direction each time when a unit laminate is finished.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a unit lamination comprising a plurality of strips of an amorphous magnetic alloy ribbon laminated in the process of manufacturing a wound core using the amorphous magnetic alloy ribbon. The present invention relates to a method of stacking amorphous magnetic alloy ribbons for an iron core used for forming a laminate block having a step at an end by stacking a plurality of bodies, and a stacking apparatus used for performing the method. Things.

[0002]

2. Description of the Related Art A one-turn cut wound core is used as an iron core for a stationary induction electric device such as a transformer. The one-turn cut wound iron core using the amorphous magnetic alloy ribbon further includes a laminate block configured by laminating a plurality of unit laminates configured by laminating a predetermined number of amorphous magnetic alloy ribbons. It has a structure in which a plurality of layers are laminated and both ends of each unit laminated body of each laminated block are wrapped with a predetermined lap margin (lap margin) La, or both ends are joined with the lap margin being zero. ing.

FIG. 13 shows an example of the structure of a one-turn cut type wound core formed in a circular shape. In this wound iron core, three core blocks B1 to B3 are provided, and the three core blocks are respectively provided. In a state where the joints (overlapping portions or abutted portions) J at both ends of the plurality of unit laminates constituting the above are distributed stepwise in substantially the same range between the O1-O1 line and the O2-O2 line. Is formed.

When the shape of the wound core is rectangular, FIG.
The circular wound core shown in 3 is formed into a rectangular shape and then annealed,
As shown in FIG. 14, the yoke portions Y1 and Y2 and the leg portions C1
And C2 are formed.

[0005] Various types of winding structures of a wound iron core have been proposed, and FIG. 15 shows an example of a structure near the joint. FIG. 15 shows a winding structure known as a wrap winding. In this example, each unit laminate is wound clockwise around the outer periphery of a winding frame.
In this winding structure, first, the first innermost unit laminated body (which is formed by stacking a plurality of amorphous magnetic alloy ribbons)
The length L1 of U1 is equal to the circumferential length R1 of the outer peripheral surface of the bobbin, and the first unit steel plate U1 is wound around the bobbin, and both ends thereof are butt-joined.

Next, the length of the second unit laminated body U2 from the innermost circumference is set to L2 = R1 + La + 2πt [t is the thickness of the unit laminated body, and La (≦ Lo) is a wrap margin]. Is wound on the first unit laminate in a state where the leading end position of the unit laminate U2 is shifted from the rear end position of the first unit laminate U1 by Lo, and both ends are fixed by a predetermined lap allowance La. Let it wrap. Similarly, the length Ln of the unit laminate constituting the laminate block at the n-th position from the innermost circumference of the wound core is represented by Ln =
Rn-1 + La + 2.pi.t, and the both ends of the unit laminate constituting each laminate block are joined with the lap margin La wrapped. Here, Rn-1 is Rn-1 = R1 + (n-
2) · 2πt [where n ≧ 2]. And 1
After the winding of one laminate block is completed, the leading end position of the unit laminate to be wound next is matched with the leading position of the already wound laminate block, and the next laminate block is processed in the same manner as described above. To wind.

In FIG. 15, a gap is shown at the joint of each unit laminate, but it is desirable that this gap is actually zero.

As a device for manufacturing a one-turn-cut wound core using a silicon steel plate, a stacking device shown in FIG. 16 and a winding device shown in FIG. 17 are known. In the case of manufacturing a wound iron core having a wrap winding structure shown in FIG. 15 using a silicon steel sheet, each of the unit laminates U1, U2,. Replaced with a unit steel plate. In the following description, for convenience, the same reference numerals U1, U2,...

The stacking device shown in FIG.
No. 67046, a feeder 1 that feeds a silicon steel sheet SS sandwiched between a feed roller 1A and a press roller 1B, and cuts the fed silicon steel sheet SS into a predetermined length. A shear plate 2 forming unit steel plates U1, U2,...
A moving table 5 disposed between the fixed table 4 and the shear 2, a step feed clamp 7 for clamping the cut unit steel plate driven by the cylinder 6 to the moving table 5, and A step feeder 8 that moves by a predetermined distance together with the feed clamp 7 to make a step, a tip clamp 10 driven by a cylinder 9 to clamp the laminated body of unit steel plates on the fixed table 4 at the tip side thereof; A tip clamp moving mechanism 11 having a screw rod 11b driven by an electric motor 11a, and a nut screwed to the screw rod, and moving the tip clamp 10 in a sheet feeding direction.
The step feeder 8 includes a cam mechanism that reciprocates the moving table using a motor that drives the shear 2 as a drive source, and after the shear completes cutting the steel plate SS (after the movable cutting blade of the shear retracts). The moving table 5 is advanced toward the fixed table 4 by an amount corresponding to the lap margin La plus an increase in the circumferential length 2πt due to the thickness of the steel sheet, and after the step feed clamp 7 is in the unclamped state, the moving table 5 is moved to the original position. Return to position.

The winding device shown in FIG. 17 is guided by a winding frame (mandrel) m rotatably supported by a pulley P so as to travel along the winding frame m. An endless winding belt V and a drive mechanism (not shown) for driving the winding belt V are provided.

In the case of manufacturing the wound core shown in FIG. 13 by the lap winding structure shown in FIG. 15 by the stacking device shown in FIG. When the feeder is fed by the same length L1, the feeder is stopped, and the steel sheet SS is cut by the shear 2 to form the first unit steel sheet U1 of the first laminate block B1.
The unit steel plate U1 is clamped to the moving table 5 by the step feed clamp 7, and the step feed device 8
As a result, the unit steel sheet U1 is advanced together with the moving table 5 to the left in FIG. 16 by the step feed amount La + 2πt (step feed is performed). Next, after the step feed clamp 7 is in the unclamped state (the state in which the clamp is released), the moving table 5 is retracted to the original position,
The tip of the unit steel plate U1 is clamped to the fixed table 4 by the tip clamp 10.

Next, the feeder 1 is restarted to feed the steel sheet SS onto the unit steel sheet U1, and the feed amount of the steel sheet by the feeder is added by 2πt (t is the thickness of the steel sheet) to the length L1 of the unit steel sheet U1. The steel sheet SS is cut by the shear 2 when it is detected that the value has become equal to the set value. Thus, a second unit steel plate U2 is formed, and this unit steel plate U2 is overlaid on the unit steel plate U1. Thereafter, the laminated body of the unit steel plates U1 and U2 is clamped to the moving table 5 by the step-feeding clamp 7, and the tip clamp 10 is set to the unclamped state. And the clamp 7 is advanced by the step feed amount La + 2πt. Next, the step feed clamp 7 is set to the unclamped state,
Is returned to its original position, the tip clamp 10 is moved to a position where it comes into contact with the tip of the unit steel plate U2, and the tip of the laminate of the unit steel plates U1, U2 is clamped by the tip clamp 10.

Similarly, the operation of step-feeding the steel sheet laminate by La + 2πt, and increasing the length by 2πt, which is the increase in the circumferential length due to the sheet thickness, on the step-feeded steel sheet laminate. The operation of superposing the unit steel plates is repeated a predetermined number of times to form the laminate block B1 '. This laminate block B1 'corresponds to a laminate of the laminate block B1 shown in FIG. 13 developed on a plane, and a step (step portion) having a displacement margin equal to the lap margin La is formed at the front end thereof. And the rear end has a margin L on the tip side.
A step having a displacement La + 2πt equal to the sum of a and 2πt is formed.

In the same manner, other laminated blocks B2 'and B3' in the developed shape are formed. The laminated blocks B1 'to B3' in the unfolded form configured as described above.
Is the winding frame m and the winding belt V of the winding device shown in FIG.
To form a wound core having a wrap winding structure as shown in FIG.

In the steel sheet stacking apparatus shown in FIG. 16, when the (n + 1) -th unit steel sheet Un + 1 having a length 2πt longer than the unit steel sheet Un is stacked on the n-th unit steel sheet Un, The nth or less unit steel plate Un, U already laminated
n-1... U1 need to be step-advanced in advance by the amount obtained by adding 2.pi.t to the lap margin La, and when the (n + 1) th unit steel plate Un + 1 is to be laid on the nth unit steel plate Un In this case, it is necessary to prevent the n-th and lower steel plates from being displaced by the frictional force generated between the two steel plates Un and Un + 1. If the position of the unit steel plate is displaced in the process of forming the laminated body of the steel plates, the quality of the iron core is reduced, and the characteristics thereof are deteriorated.

Therefore, in the conventional stacking apparatus shown in FIG. 16, in order to step-feed the already laminated unit steel plates, the moving table 5, the cylinder 6, the step-feeding clamp 7, the step-feeding device 8, The cylinder 9, the tip clamp 10, and the tip clamp moving mechanism 11 are provided in order to prevent displacement of the unit steel plates already stacked.

[0017]

Conventionally, when a wound iron core is manufactured using a silicon steel sheet, the steel sheets can be automatically stacked by using the above-described manufacturing apparatus. When using an amorphous magnetic plywood ribbon, the stacking apparatus shown in FIG. 16 could not be used for the following reasons.

In the case of manufacturing a wound core using an amorphous magnetic plywood ribbon and forming a laminate block using the stacking apparatus shown in FIG.
S is replaced by a composite strip formed by laminating a plurality of amorphous magnetic alloy ribbons, the composite strip is fed to the fixed table 4 side by the feeder 1, and the composite strip is cut by the shear 2 The unit laminates U1, U2,... Are sequentially formed.

However, as is well known, since the amorphous magnetic alloy ribbon is very thin and brittle, the composite strip of the amorphous magnetic alloy ribbon is fed to the feeder 1 comprising the feed roller 1A and the pressing roller 1B. Therefore, when the ribbon is fed to a predetermined position on the fixed table 4, the ribbons undulate or warp in the course of the feeding, and the unit laminates cannot be formed properly.

Further, since the amorphous magnetic plywood ribbon is hard, if the thickness of the composite strip is set to a thickness corresponding to the unit laminate, not only is it difficult to cut the composite strip, but also the shear for cutting the strip. It is inevitable that the life of the device will be shortened.

For the above reason, when the wound core is formed by using the amorphous magnetic alloy ribbon, the stacking device as shown in FIG. 16 cannot be used, so that the unit laminates U1, U2 , And the stacked body blocks B1 ', B2',
... has to be performed by hand, and there is a problem that the manufacturing efficiency of the iron core cannot be improved.

An object of the present invention is to mechanically perform a step of stacking unit laminates to form a laminate block when producing a wound core using an amorphous magnetic alloy ribbon. An object of the present invention is to provide a method and an apparatus for stacking amorphous magnetic alloy ribbons for an iron core.

[0023]

SUMMARY OF THE INVENTION According to the present invention, there is provided a method of stacking amorphous magnetic alloy ribbons for an iron core, comprising the steps of: stacking a plurality of long amorphous magnetic alloy ribbons; Is fed in the longitudinal direction and cut into predetermined lengths by a shear. Are laminated on a fixed table in such a manner that the unit laminates are displaced from each other by a predetermined displacement dimension in the longitudinal direction to form a laminate block having a step at an end in the longitudinal direction.

In the present invention, after the tip of the composite strip is clamped at a clamp position set near the shear and moved by a predetermined distance in the feeding direction of the composite strip,
A unit laminate forming step of forming a unit laminate on a fixed table by performing a process of forming a composite sheet by cutting a composite strip by a shear a predetermined number of times, and collectively clamping unit laminates present on the fixed table Then, two steps, that is, a step feeding step of moving in the feeding direction by the shift size, are alternately performed until the stacked block is formed.

That is, in the method of the present invention, the feeding of the composite strip is mainly performed by the traction operation by the clamp.

In carrying out the method of the present invention, for example,
A first extending parallel to each other in a region between the front end and the rear end;
And a fixed table having a second slit, the upper surface of which is arranged along the horizontal direction, and a composite strip, which is arranged on the rear end side of the fixed table and extends the composite strip in the longitudinal direction of the first and second slits. A feeder that feeds to the fixed table side along with, a shear disposed between the feeder and the fixed table, and a support that is disposed at a position where they do not interfere with each other and can reciprocate in the feed direction of the composite strip. First
And a second slider, and a first slider supported by the first and second sliders and reciprocating in the feeding direction above the fixed table with the movement of both sliders.
And a second movable plate, and first and second clamps respectively for clamping the distal end of the composite strip fed by the feeder supported by the first and second sliders to the first and second movable plates. 2 and a composite sheet on the fixed table through the first and second slits from below the fixed table supported by the first and second sliders and the first and second movable plates, respectively. And a step clamp for clamping the composite strip on the fixed table to the fixed table at a position closer to the shear table.

In this case, when the composite strip is fed by the feeder and the leading end of the composite strip reaches a clamping position set near the shear, the leading end of the strip is clamped by the first strip feed clamp. After moving the first strip feed clamp forward by a predetermined distance in the feeding direction, a first composite sheet forming step of forming one composite sheet by cutting the composite strip with a shear, and forming a composite sheet by a feeder When the strip is fed and the leading end of the composite strip reaches the clamping position, the leading end of the strip is clamped by a second strip feed clamp, and the second strip feed clamp is moved forward in the feeding direction. After moving a predetermined distance, the composite strip is cut by a shear and another composite sheet is cut. A unit laminate forming step of forming a unit laminate on a fixed table by alternately performing a second composite sheet forming process to be formed, and feeding the unit laminate present on the fixed table by first and second steps. And a step-feeding step in which the sheet is clamped together by at least one of the clamps and moved to the front side in the feeding direction by a shift size, and the two steps are alternately performed until the laminated block is formed. In the unit laminate forming step, the shear-side end of the composite sheet already formed on the fixed table in the process of the first or second strip feed clamp clamping and moving the composite strip is tail clamped. And the other is returned to the clamp position while one of the first and second strip feed clamps clamps and moves the composite strip.

The stacking apparatus for carrying out the method of the present invention includes, for example, a fixed table having a slit extending in a region between a front end and a rear end, and having a top surface arranged horizontally. A feeder disposed on the rear end side of the fixed table to feed the composite strip to the fixed table side along the longitudinal direction of the slit; and a shear disposed between the feeder and the fixed table. A slider supported so as to be able to reciprocate in the feeding direction of the strip, and a movable plate supported by the slider and provided so as to reciprocate above the fixed table in the feeding direction with the movement of the slider. A strip feed clamp that clamps the distal end of the composite strip fed by the feeder supported by the slider to the movable plate; and a fixed tape supported by the slider. A step feed clamp for clamping the composite sheet on the fixed table to the movable plate through the slit from the lower side, and a tail clamp for clamping the composite strip on the fixed table to the fixed table at a position near the shear. And a control device for controlling the feeder, the shear, the strip feed clamp, the step feed clamp, and the tail clamp.

In this case, the control device feeds the composite strip by the feeder and clamps the distal end of the composite strip by the strip feed clamp when the distal end of the composite strip reaches the clamp position set near the shear. After moving the strip feed clamp forward by a predetermined distance in the feeding direction, a composite sheet forming process of forming one composite sheet by cutting the composite strip with a shear is performed, and the unit is placed on the fixed table. Two operations: an operation of forming a laminate, and a step-feeding operation of collectively clamping unit laminates present on a fixed table by a step-feeding clamp and moving the unit laminate to the front side in the feeding direction by the shift size. Alternately until a laminated block is formed, and the strip feed clamp is When the trip is clamped and moved, a feeder, a shear, and a strip feed clamp are used so that the shear-side end of the composite sheet already formed on the fixed table is clamped to the fixed table by the tail clamp. And a step feed clamp and a tail clamp.

In order to efficiently perform the stacking operation, it is preferable to provide two strip feed clamps and two step feed clamps. In this case, the fixed table is provided with first and second slits extending parallel to each other between the front end and the rear end of the fixed table, and the first and second slits reciprocate in the feeding direction of the composite strip. And the second slider are provided at positions where they do not interfere with each other. The first and second movable plates are supported on the first and second sliders, respectively, and the first and second movable plates move above the fixed table with the movement of both sliders in the feeding direction. Reciprocate in a direction parallel to The first and second sliders also include first and second strip feed clamps for clamping the leading end of the composite strip fed by the feeder to the first and second movable plates, respectively, and fixing. First and second step-feeding clamps for clamping the composite sheet on the fixed table to the first and second movable plates through the first and second slits from below the table are supported. deep. A tail clamp for clamping the composite strip on the fixed table to the fixed table at a position close to the shear, a feeder, a shear, first and second strip feed clamps, and first and second step feed clamps; A control device for controlling the tail clamp is provided.

In this case, the control device feeds the composite strip by the feeder, and when the leading end of the composite strip reaches a clamp position set near the shear, the leading end of the composite strip is fed to the first strip feeder. After the first strip feed clamp is moved forward by a predetermined distance in the feeding direction, the composite strip is cut by shearing.
A first composite sheet forming step of forming two composite sheets, and when the composite strip is fed by a feeder and the leading end of the composite strip reaches a clamping position, the leading end of the strip is clamped by a second strip feed clamp. Then, after moving the second strip feed clamp forward by a predetermined distance in the feeding direction, the second composite sheet forming step of forming another composite sheet by cutting the composite strip with a shear is alternately performed. To form a unit laminate by stacking a plurality of composite sheets on a fixed table, and collectively clamp unit laminates present on the fixed table by a step-feeding clamp to perform the feeding. The two operations, that is, the step feed operation for moving the shift block forward in the direction by the shift size, are performed until the laminate block is formed. When the first or second strip feed clamp clamps and moves the composite strip, the shear-side end of the composite sheet already formed on the fixed table is fixed to the fixed table by the tail clamp. And the first and second strip feed clamps return the other clamp to the clamp position in the process of clamping and moving the composite strip and returning the other clamp to the clamp position. The first and second strip feed clamps, the first and second step feed clamps, and the tail clamp are controlled.

As described above, in the method of the present invention, the composite strip is moved to the predetermined length by holding the tip of the composite strip at the clamp position set near the shear and moving the clamp forward. Just send. When the composite strip is fed for a predetermined length, the composite strip is cut by a shear to form a composite sheet. A unit laminate is formed by laminating a predetermined number of the composite sheets thus formed, and the unit laminate is fed stepwise. By repeating these steps, a laminate block in which a predetermined number of unit laminates are laminated is formed.

According to such a method, since the feeding of the composite strip is mainly performed by the traction operation by the clamp, it is possible to prevent the ribbon constituting the composite sheet from waving or warping during the feeding. The quality of each unit laminate can be improved.

In the present specification, the operation in which the strip feed clamp pulls and feeds the composite strip is referred to as “pull feed”.

As described above, when the leading end of the composite strip is clamped and the composite strip is pulled, the feeding speed is higher than when the composite sheet is fed by a feeder using a feed roller. Therefore, the unit laminate can be efficiently formed, and the manufacturing efficiency of the iron core can be improved.

Also, as described above, when the composite strip already laminated on the fixed table is clamped by the tail clamp at the time of pull-feeding the composite strip, the composite sheet is laminated on the fixed table. When pulling the composite strip while sliding on the composite sheet, the position of the already cut composite sheet does not shift, so that it is possible to obtain an appropriate unit laminate without positional shift of the composite sheet. The quality of the wound iron core can be improved.

As described above, a unit laminate is formed by further laminating a plurality of composite sheets formed by cutting a composite strip comprising a plurality of laminates of amorphous magnetic alloy ribbons into a predetermined length. With this configuration, the number of the amorphous magnetic alloy ribbons constituting the composite strip can be set to a range in which the cutting of the strip can be performed without difficulty. The life of the shear can be extended.

In the present invention, two strip feed clamps and two step feed clamps are provided, and one of the strip feed clamps clamps the composite strip to perform pull feed while the other strip feed clamp performs the pull feed. In the case where the feed clamp is controlled to return to the clamp position and pull feed is alternately performed by two strip feed clamps to form a series of composite sheets, one composite sheet is formed. After that, the time required until the start of the pull feed for forming the next composite sheet can be reduced, so that the work of stacking thin ribbons can be efficiently performed.

[0039]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following embodiments of the present invention, in order to manufacture a wound core having a structure shown in FIG. 15 using an amorphous magnetic alloy ribbon, a unit laminate Un (n = 1) , 2,
..) Are sequentially formed, and these unit laminates are sequentially shifted and shifted in position by a displacement dimension (lap margin) La to form a laminate block Bn (n = 1, 2,...). I do. The unit laminates U1, U2,... Each have an increase in peripheral length (2π
(t, t is the thickness of the unit laminate)).

In the method for stacking amorphous magnetic alloy ribbons for an iron core according to the present invention, a composite strip formed by laminating a plurality of long amorphous magnetic alloy ribbons is fed in the longitudinal direction. Then, a strip-shaped composite sheet is formed by cutting the composite sheet into a predetermined length with a shear, and the composite sheet alone or a plurality of the composite sheets laminated to form a unit laminate. Then, a plurality of unit laminates having different lengths by the increment of the circumferential length 2πt (t is the thickness of the unit laminate) are placed on the fixed table with their positions shifted in the longitudinal direction by a predetermined shift dimension La. By laminating, a laminate block having a step at the longitudinal end is formed.

In the present invention, the composite strip is fed by a feeder between the cutting blades of the shear to the fixed table side, and when the tip of the strip reaches a clamp position set near the shear, the tip of the strip is stripped. Is held by a clamp, the clamp is moved by a predetermined distance in the composite strip feeding direction in a state where the composite strip is restrained by the feeder, and then the composite strip is cut by a shear to form a composite sheet. A unit stack forming step of forming the unit stack on the fixed table by performing the steps a number of times, a step feeding step of collectively clamping the unit stack existing on the fixed table and displacing the unit stack in the feed direction by a distance La. Are alternately performed until a laminate block is formed.

FIGS. 1 to 7 show an example of the structure of an apparatus used to carry out the method of the present invention. FIG. 1 shows a case where a wound core is manufactured by carrying out the stacking method of the present invention. FIG. 2 is a configuration diagram schematically showing the overall configuration of the device, FIG. 2 is a side view showing the configuration of a main part of the stacking device according to the present invention, and FIG. FIG. 4 is a perspective view showing the structure of a strip feed clamp and a step feed clamp used in the same stacking device. FIG. FIG. 6 is a perspective view showing a state in which the composite strip is clamped by a tail clamp in the same stacking apparatus, and FIG. 7 shows a state in which the next composite strip is pulled over the cut composite sheet. It is a perspective view. FIG. 8 is an operation explanatory view schematically showing a series of steps of the method of the present invention.

This embodiment shows an example in which two strip feed clamps and two step feed clamps constituting the stacking device are used.

FIG. 1 shows an overall configuration of a manufacturing apparatus used for manufacturing a wound core by stacking amorphous magnetic alloy ribbons by the method of the present invention.
Is a fixed table supported by a frame (not shown) with the upper surface extending along the horizontal direction. Fixed table 20
A feeder 21 is disposed behind the rear end portion 20a of the rear table 20. A shear 22 having a fixed blade (lower blade) 22A and a movable blade (upper blade) 22B is provided between the fixed table 20 and the feeder 21. Are located.

An uncoiler 23 is located behind the feeder 21.
Is arranged on the drum 24 of the uncoiler 23,
A composite strip AS, which is formed by laminating a plurality of amorphous magnetic alloy ribbon strips, is wound.

The feeder 21 is a well-known type having a feed roller 21A rotated by a driving mechanism (not shown) and a pressing roller 21B.
It is provided so that it can be displaced between an operation position in contact with the feed roller 21A and a retracted position away from the feed roller. The feeder 21 feeds the composite strip AS unwound from the drum 24 by the uncoiler 23 to the fixed table 20 side between the feed roller 21A and the press roller 21B.

Above the fixed table 20, first and second sliders are disposed so as not to interfere with each other and supported so as to be able to reciprocate in the longitudinal direction of the fixed table (the feeding direction of the composite strip). SL1 and SL2 are provided, and these sliders are reciprocated in the longitudinal direction of the fixed frame by a driving mechanism including first and second ball screws BS1 and BS2. The first and second movable plates M are provided on the first and second sliders SL1 and SL2, respectively.
1 and M2 are supported, and the movable plates M1 and M2 respectively have the first and second ends of the composite strip AS.
The first and second strip feed clamps SF1 and SF2 that clamp the movable plates M1 and M2 are mounted. Further, below the fixed table 20, first and second step feed clamps SC1 and SC2 are provided. These step-feeding clamps are supported by first and second sliders SL1 and SL2, respectively, and pass the composite sheet on the fixed table from the lower side of the fixed table 20 through a slit of the fixed table to the first and second sliders. Are clamped against the movable plates M1 and M2. On the rear end 20a side of the fixed table,
First and second tail clamps TC1 and TC2 for clamping the composite sheet on the fixed table to the fixed table at a position near the shear 22 are provided.

The fixed table 20 and the feeder 21
, Shear 22, sliders SL1, SL2, movable plates M1, M2, and strip feed clamps SF1,
SF2, step feed clamps SC1 and SC2,
Tail clamp TC1, TC2, feeder, shear,
A stacking device 31 according to the present invention is constituted by a control device (not shown) for controlling a clamp and the like.

In front of the front end portion 20b of the fixed table 20, a winding device 32 is disposed, and a stacked block Bn (n = 1, 2, 3,...) Formed by the stacking device 31.
Is supplied to the winding device 32. The illustrated winding device 32
Is a winding frame (mandrel) M rotatably supported, an endless winding belt V formed in a loop shape and guided by a number of pulleys P to travel along the winding frame m, A driving mechanism (not shown) for driving the belt V is provided. The laminated blocks B1, B2,.

In the example shown in FIG. 1, a circular form is used as the form m, but a rectangular form is used as the form M, and a laminate block is provided around the outer periphery of the rectangular form. B
In some cases, a rectangular wound core as shown in FIG. 14 is directly manufactured by sequentially winding 1, B2, B3,... And joining both ends thereof.

Next, the configuration of the main part of the stacking device according to the present invention will be described with reference to FIGS.

2 and 3, reference numeral 40 denotes an installation base; 41, a fixed frame supported by the installation base 40; And an upper frame 43 fixed to the upper end of the support column 42, and the fixed table 20 is disposed below the upper frame 43. The fixed table 20 has a rectangular shape elongated in the feeding direction of the composite strip.
Is fixed to the installation base 40. First and second fixed tables 20 are located on both sides of the support leg 44 and extend in parallel with each other in the longitudinal direction of the fixed table.
Slits 45A and 45B (see FIGS. 3 and 5) are provided.

The first and second guide rails 46A and 46B extending parallel to each other in the longitudinal direction of the fixed table 20 are fixed to the lower surface of the upper frame 43. The first and second guide rails 46A and 46B have a dovetail-shaped cross-sectional shape, and these guide rails are provided on the first and second sliders SL1 and SL2 with a dovetail-shaped cross-section. Is slidably fitted to The first and second sliders SL1 and SL2 are movably supported by the first and second guide rails 46A and 46B in the longitudinal direction of the fixed table (the longitudinal direction of the slits 45A and 45B).

First and second sliders SL1 and SL2
Are provided with screw holes extending in the feed direction of the composite strip, respectively, and first and second ball screws BS1 and BS2 are screwed into screw holes of both sliders SL1 and SL2, respectively. These ball screws BS1 and BS2 are connected to the output shafts of servo motors (not shown) provided separately for the respective ones, and the first and second ball screws BS1 and BS2 are connected to the output shafts of the servo motors.
And the second slider is reciprocally driven.

First and second sliders SL1 and SL2
First and second clamp elevating / lowering cylinders (air cylinders in the illustrated example) 47A and 47B are attached to the lower surfaces of the first and second clamps, respectively. The lifting cylinders 47A and 47B are piston rods 47a and 47b projecting downward, respectively.
And these piston rods 47a and 47
b at the lower end of the first and second movable plates M1 and M2, respectively.
Are fixed, and first and second strip feed clamps SF1 and SF2 are attached to these movable plates M1 and M2, respectively.

The first and second sliders SL1 and S1
The first and second side frames 5 on the side of L2, respectively.
The upper ends of 0A and 50B are connected, and the first bogie 51A and the second bogie 51B are connected to the lower ends of these side frames, respectively. Wheels 52A and 52B are attached to the lower part of the first cart 51A and the second cart 51B.
5A and 45B are positioned so as to extend along both slits and roll on first and second guide rails 53A and 53B fixed on the installation base 40. First and second carts 51A and 51
B and the first and second step feed clamps SC
1 and SC2 are attached.

In this example, when the first slider SL1 is driven, the first movable plate M1 and the carriage 51A move together with the first slider SL1, and accordingly, the first strip feed clamp SF1. And the first step feed clamp SC1 moves in the strip feed direction. Similarly, when the second slider SL2 is driven, the second movable plate M2 and the carriage 51B move together with the second slider SL2, and accordingly, the second strip feed clamp SF2 and the second The step feed clamp SC2 moves in the strip feed direction.

Referring to FIG. 4, the first slider SL1
The structure of the part which moves in the feeding direction of the strip together with the strip is schematically shown. In this example, the first movable plate M1 is formed so as to have an L-shape when viewed from above, and the short side thereof has a piston rod 47 of the cylinder 47A.
a. The long side of the first movable plate M1 is provided so as to extend along the strip feeding direction, and the tip M1a of the long side is directed to the feeder 21. A tapered surface M1t for guiding the leading end of the composite strip AS fed by the feeder 21 is formed at the leading end of the first movable plate.

An air cylinder 54 is attached to the rear end of the long side of the first movable plate M1 with its piston rod 54a facing the front end M1a of the long side. A driving member 55 is attached to the tip of the piston rod 54a, and a cam surface 55a for driving the first strip feed clamp SF1 is provided at the tip of the driving member 55.

On the long side of the first movable plate M1, a pair of brackets 56, 56
Has been fixed. A U-shaped clamp plate 57 is disposed between the brackets 56, 56, and the clamp plate 57 is swingably supported by the brackets 56, 56 via pins. A roller 58 is attached to the rear end of the clamp plate 57, and the roller 58 is in contact with the cam surface 55 a of the driving member 55. Although not shown, the clamp plate 57
A spring is provided to urge the rear end portion toward the drive member 55 side,
The roller 58 is pressed against the cam surface 55a of the driving member by the urging force of the spring. In this example, the air cylinder 5
4, drive member 55, clamp plate 57, roller 58
, The first strip feed clamp SF1
Is configured. In this strip feed clamp, when the air cylinder 54 is driven to extend the piston rod 54a, the cam surface 55a pushes up the roller 58 to rotate the clamp plate 57 in one direction. By this rotation, the tip portion 57a of the clamp plate 57
Is displaced toward the movable plate M1, and the distal end 5 of the clamp plate is displaced.
The composite sheet laminate is clamped between 7a and the movable plate M1. The piston rod 54a of the air cylinder 54
When is retracted, the cam surface 55a retracts from between the roller 58 and the movable plate M1, and rotates the clamp plate 57 in the direction opposite to that at the time of clamping. By this rotation, the distal end portion 57a of the clamp plate 57 is displaced in a direction away from the movable plate M1 to release the clamp of the composite sheet laminate.

An air cylinder 60 is mounted on the first carriage 51A with its piston rod 60a facing upward. The air cylinder 60 is positioned so that its piston rod 60a moves up and down through the first slit 45A of the fixed table 20, and when the piston rod 60a is extended, the upper end of the piston rod is set to the first slit 45A. Through the inside, it comes into contact with the lower surface of the composite sheet laminate on the fixed table 20 to clamp the laminate against the movable plate M1. In the illustrated example, the air cylinder 60 forms a first step feed clamp SC1.

FIG. 4 shows the structure of the portion moving in the feeding direction of the strip together with the first slider SL1, but the structure of the portion moving in the feeding direction together with the second slider SL2 is the second structure. Movable plate M2 and second carriage 51B
Are arranged symmetrically with respect to the first movable plate M1 and the first carriage 51A, respectively.

That is, the second strip feed clamp SF2 attached to the second movable plate M2 is, as shown in FIG.
As in the first embodiment, the composite sheet AS includes an air cylinder 54, a driving member 55, a clamp plate 57, and a roller 58.
Clamp the tip of.

The second carriage 51B is mounted on the second carriage 51B.
The step feed clamp SC2 is formed by an air cylinder 60 in the same manner as the first step feed clamp SC1, and the piston rod 60a of the air cylinder 60 passes through the second slit 45B to form The laminate is clamped to the movable plate M2.

As shown in FIG. 5, the first strip feed clamp SF1 and the second strip feed clamp S are located at positions near the rear end of the fixed table 20.
A first tail clamp TC1 and a second tail clamp TC2 are provided on the same side as F2 (not shown in FIG. 5). Each tail clamp is
An air cylinder 62 having a piston rod 62a directed upward to an end of a mounting plate 61 fixed to the lower side of the fixed table 20, and a hook-shaped bent end 63a
A clamp arm 63 attached to the upper end of the piston of the air cylinder 62 and a stopper pin 64 fixed to the upper surface of the fixed table 20;
And a suitable rotating means (not shown in the drawings) for rotating. This rotating means can be constituted by, for example, a rotating member coupled to the piston rod 62a via a spline (in a state where the linear movement of the piston rod is allowed), and a drive mechanism for rotating the rotating member. The interval between the stopper pins 64, 64 is set substantially equal to the width dimension of the composite strip, and the composite strip AS is dropped between these stopper pins to position the composite strip. .

The first and second tail clamps TC1 and TC2 are used to pull the shear-side end (tail) of the composite sheet already cut and laminated on the fixed table 20 when the composite strip AS is pulled and fed. It is used for clamping to prevent the composite sheet from being displaced.

When the composite strip AS is pulled and fed without the composite sheet (composite strip cut to a predetermined length) on the fixed table 20,
As shown in FIG. 5, the clamp arm 63 is disposed at a position retracted from the composite strip AS.

When clamping the composite sheet S (the composite strip AS cut to a predetermined length) by the first tail clamp TC1 or the second tail clamp TC2, the piston rod 62a of the cylinder 62 is extended. The clamp arm 63 is rotated to a position where the clamp arm 63 comes into contact with the stopper pin 64 with the clamp arm 63 raised to a height at which a predetermined gap is formed between the clamp arm 63 and the fixed table 20. After the clamp arm 63 is rotated to a position where it contacts the stopper pin 64, the piston rod of the cylinder 61 is lowered to lower the clamp arm 63 to the clamp position as shown in FIG. Composite sheet S between fixed table 20
Clamp.

In FIG. 2, a feeder 21 is provided with a feed roller 21A which contacts the composite strip AS from below.
And a pressing roller 21B attached to the lower end of the piston rod 70a of the air cylinder 70. The pressing roller 21B is driven by the cylinder 70 to abut on the composite strip AS from above and press the composite strip against the feed roller 21A, and a retreat to release the restraint of the composite strip apart from the composite strip AS. It can be displaced between positions.

A delivery table 78 (see FIG. 2) for supporting the composite strip fed by the feeder is provided between the feeder 21 and the shear 22.

Further, in the illustrated example, the feeder 21 and the first
And second strip feed clamps SF1 and S
F2, first and second step feed clamps SC1 and SC2, and first and second tail clamps TC1 and TC
A control device for operating the C2 and the shear 22 in a predetermined order is provided.

A sensor for measuring the thickness of the composite strip AS fed by the feeder 21 is provided, and the thickness of the composite strip detected by this sensor is given to the control device. FIGS. 9 to 12 are flowcharts showing an example of a control algorithm when the control device is configured using a microcomputer.

Next, the stacking method of the present invention performed by using the above-described apparatus will be described with reference to FIGS.
This will be described with reference to the flowchart shown in FIG.

In the uncoiler 23 shown in FIG. 1, a composite strip formed by laminating a plurality (for example, eight) of amorphous magnetic alloy ribbons and wound around a drum 24 in a coil shape is set. ing.

In this embodiment, when a start command is given, first, each part is initialized (step 0 in FIG. 9).
Perform At that time, a return-to-origin command is given to a control unit for controlling the first and second sliders SL1 and SL2, and both sliders are moved away from the shear 22 so that the first and second strip feed clamps SF1 and SL2 are moved. SF
2 is moved to the origin position and stopped. This origin position is set to a position sufficiently distant from the shear 22 so as not to hinder the pull feed of the composite strip by the strip feed clamp.

Next, the initial cut length (the length of the first unit laminate U1) L1 and the shift dimension La, the set value NS of the number of composite sheets constituting one unit laminate, and the one laminate block Is read from the set value NB of the number of unit laminates constituting the set and the set value Ts of the number of laminate blocks constituting the wound core (step 1 in FIG. 9). The number NS of composite sheets constituting one unit laminated body is set to, for example, 4 and a total of 32 (= 8)
× 4) One unit laminated body is composed of the amorphous magnetic alloy ribbons.

After reading various set values, the first slider SL1 is moved to the shear 22 side, and the first strip feed clamp SF1 is moved to a clamp position near the shear 22 (step 2). At this time, the feeder 21 is simultaneously driven to supply the composite strip AS to the fixed table 20 side between the cutting blades 22A and 22B of the shear 22 (step 3). When the leading end of the composite strip AS reaches the clamp position of the first strip feed clamp, the feeder 21 is stopped.
Next, as shown in FIG. 8A, the first strip feed clamp SF1 is slightly moved to the shear side, and the tip of the composite strip AS is inserted between the clamp plate 57 of the clamp SF1 and the movable plate M1. Then, the cylinder 54 of the first strip feed clamp SF1 is driven, and the tip of the composite strip AS is clamped by the clamp SF1 (step 4). Next, the pressing roller 21B of the feeder 21 is displaced to the retracted position to release the restraint of the composite strip AS by the feeder 21 (pinch released) (step 5), and the first slider SL1 is moved to the tip end side of the fixed table 20. Then, as shown in FIG. 8B, the first strip feed clamp SF1 is advanced in the feeding direction (the front end 20b side of the fixed table). Thereby, the composite strip AS is pulled and fed until the length from the cutting blade of the shear 22 to the tip of the composite strip on the fixed table becomes equal to the length of the unit laminate (step 6). During this time, the second slider SL2 is moved toward the shear 22 with the movable plate M2 raised, and the second strip feed clamp SF2 is moved to the clamp position (step 7).

In step 6, the feed length at the time of pull-feeding the composite strip can be detected by measuring the number of revolutions of the servomotor driving the ball screw BS1. In addition, a composite strip is provided by using an appropriate sensor, for example, a roller that contacts a fed composite strip and rotates with the movement of the strip, and detects a feed length of the strip from the number of rotations of the roller. Can be detected. After the pulling of the composite strip is started, when it is detected that the length from the cutting blade of the shear 22 to the tip of the composite strip on the fixed table 20 has become equal to the length of the predetermined unit laminate, the first step is performed. The first slider SL1 is stopped.

Next, as shown in FIG.
The movable blade 22B is lowered to cut the composite strip AS (step 8), and the count value ns of the sheet counter is increased by 1 (step 9).

Thereafter, it is determined whether or not the count value ns of the sheet counter has become equal to the set value NS (step 10 in FIG. 10). As a result, when it is determined that the count value ns of the sheet counter is not equal to the set value NS, the first and second tail clamps TC1 and TC2 are operated, and
The rear end of the cut composite sheet S is clamped to the fixed table 20 as shown in FIG. 8C (step 11 in FIG. 10).

Thereafter, the process proceeds to step 23 in FIG.
The first strip feed clamp SF1 is set to the unclamped state, and as shown in FIG. 8D, the first strip feed clamp SF1 is advanced in the feeding direction.
The clamp SF1 is removed from the composite sheet S. During this time, feeding of the composite strip AS by the feeder 21 is started (Step 24), and the second strip feed clamp SF2 is moved to the clamp position in preparation for the next pull feed (Step 25 in FIG. 11).

When the leading end of the composite strip AS reaches the clamp position of the second strip feed clamp SF2, the feeder 21 is stopped. Then, with the movable plate M2 lowered, the second strip feed clamp SF2 is slightly moved to the shear side, as shown in FIG. 7, between the clamp plate 57 of the clamp SF2 and the movable plate M2. After inserting the tip of the composite strip AS, the cylinder 54 of the clamp SF2 is driven to drive the composite strip A.
The tip of S is clamped (Step 26), and the feeder 21 is clamped.
Is released from the composite strip AS (step 27).

Thereafter, as shown in FIG. 8E, the first strip feed clamp SF1 is moved toward the clamp position with the movable plate M1 raised (FIG. 1).
With the first step 28), the second strip feed clamp SF2 is moved forward in the feeding direction,
Pull feed the composite strip AS (Step 2)
9). The operation of this pull feed is the same as that of the pull feed by the first strip feed clamp SF1.

Second Strip Feed Clamp SF
2, the movable blade 22B of the shear 22 is lowered to cut the composite strip AS (step 30 in FIG. 11), and the count value ns of the sheet counter is increased by 1 (step 31 in FIG. 11). ).

Next, it is determined whether or not the count value ns of the sheet counter is equal to the set value NS (step 3 in FIG. 12).
2) As a result, when it is determined that the count value ns is not equal to the set value NS (ns <Ns), the tail clamps TC1 and TC2 are operated, and the end of the composite sheet S on the fixed table 20 on the shear side. Are collectively clamped (step 33 in FIG. 12).

Next, the second strip feed clamp SF2 is set in the unclamped state, and is advanced in the feeding direction to remove the clamp SF2 from the composite sheet S (step 34 in FIG. 12). At the same time, the first strip feed clamp SF1 is moved to the clamp position (Step 2 in FIG. 9), and after the movable plate M1 is lowered, the feeder 21 is moved.
Of the composite strip AS is started (step 3 in FIG. 9).

By repeating the above process, FIG.
As shown in (F), the composite sheet S is stacked on the fixed table. In step 10 of FIG. 10, when it is determined that the count value ns of the sheet counter is equal to the set value NS (when one unit laminate is completed), the count value nb of the step counter is incremented by 1 (step 10). 13), the cutting length (the length of the composite sheet = the feeding length at the time of pull feed) is increased by 2πt (t is the thickness of the unit laminated body) (step 14). The thickness t of the unit laminate is determined by detecting the average value of the thickness of the composite strip fed at a specific position (for example, between the shear 22 and the feeder 21). It is calculated by multiplying the average value by the set value NS of the number of composite sheets constituting one unit laminate.

Next, it is determined whether or not the count value nb of the stage counter is equal to the set value NB of the number of unit stacks per stack block (step 15). As a result, the count value nb is not equal to the set value NB. If it is determined that (nb <NB), a step shifting step (step 16) is performed.
In this step shifting step, as shown in FIG. 8 (G), a step-feeding clamp SC1 is formed in a state where the final composite sheet when the unit laminate is completed is clamped by the first strip-feeding clamp SF1. By driving the air cylinder 60 to raise the piston rod, the unit laminated body (laminated body of the composite sheet) on the fixed table 20 is collectively clamped to the movable plate M1. In this state, the unit slider is advanced by La by shifting the first slider SL1 in the feeding direction by the dimension La. Then tail clamp TC
Then, the process proceeds to step 11 in which 1 and TC2 are clamped. When it is determined in step 15 that the count value nb of the stage counter is equal to the set value NB [when one laminate block including the unit laminates U1 to U3 is completed as shown in FIG. Is the count value n of the stage counter
After b is returned to zero (step 17), the process proceeds to the next step (step 18), and the count value ts of the number of stacked blocks is increased by 1 (step 19), and the count value ts becomes equal to the set value Ts. (Step 2)
0). As a result, when it is determined that the number of the laminate blocks Bn is not equal to the set value Ts, step 23 in FIG.
It moves to ２５25. Also, the count value ts of the number of stacked blocks
Is determined to be equal to the set value Ts (when the formation of all the laminated blocks constituting one iron core is completed), the count value ts is returned to zero (step 2).
1) Stop the device (step 22).

Similarly, in step 32 of FIG.
When it is determined that the count value ns of the sheet counter is equal to the set value NS, the count value nb of the step counter is increased by 1 (step 36), and the cut length is increased by 2πt (t is the thickness of the unit laminate). (Step 37).

Next, it is determined whether or not the count value nb of the stage counter is equal to the set value NB of the number of unit stacks per stack block (step 38). As a result, the count value nb is not equal to the set value NB. If it is determined that (nb <NB), a step shifting step (step 39) is performed.
In this step shifting step, while the final composite sheet when the unit laminate is completed is clamped by the second strip feed clamp SF2, the air cylinder 60 constituting the step feed clamp SC2 is driven, and By raising the piston rod, the unit laminate (the composite sheet laminate) on the fixed table 20 is collectively clamped to the movable plate M2. In this state, the second
By moving the slider SL2 in the feeding direction by the dimension La, the unit laminate is advanced by La.
Thereafter, the process proceeds to step 33 in which the tail clamps TC1 and TC2 are clamped. If it is determined in step 38 that the count value nb of the stage counter is equal to the set value NB, the count value nb of the stage counter is returned to zero (step 40), and the process proceeds to the next step (step 42).
At the same time, the count value ts of the number of stacked blocks is increased by 1 (step 41), and it is determined whether the count value ts has become equal to the set value Ts (step 43). As a result, when it is determined that the number of the laminate blocks Bn is not equal to the set value Ts, the process proceeds to steps 2 to 3 in FIG. When it is determined that the count value ts of the number of stacked blocks has become equal to the set value Ts, the count value ts is returned to zero (step 44), and the apparatus is stopped (step 4).
5).

The next step after steps 18 and 42 is a winding step by the winding device 32 (see FIG. 1).
In this step, both ends of each laminated block are joined by winding the completed laminated block Bn between the endless belt V and the winding frame m.

In the present embodiment, by causing a microcomputer (not shown) to execute a program created according to the algorithm shown in FIGS. 9 to 12,
The composite strip AS is fed between the cutting blades of the shear 22 by the feeder 21, and when the leading end of the strip reaches a clamp position set near the shear, the leading end of the strip is clamped to a first strip feed clamp SF1. After the first strip feed clamp SF1 is moved a predetermined distance to the front side in the feeding direction in a state where the composite strip is restrained by the feeder 21, the composite strip is cut by the shear 22 to remove the composite strip. A first composite sheet forming process for forming two composite sheets S, and a composite strip AS is fed by a feeder 21 between cutting blades of a shear 22 and when the leading end of the composite strip reaches a clamping position, the composite strip AS is removed. The tip is clamped by a second strip feed clamp SF2, Composite strip AS by over da 21
After the second strip feed clamp SF2 is moved a predetermined distance forward in the feeding direction in a state where the constraint is released, the shear strip is used to cut the composite strip to form another composite sheet. The unit sheet forming step of forming the unit stacked body Un by stacking a plurality of composite sheets S on the fixed table by alternately performing the composite sheet forming process, and the unit stacked body existing on the fixed table The step of feeding the sheet is clamped collectively by the feed clamp SC1 or SC2 and shifted to the front side in the feeding direction by the distance La, and the step of feeding is alternately performed until the laminated block is formed. In the laminate forming step, the first or second strip feed clamps SF1 and SF2 clamp and move the composite strip. The end on the shear side of the composite sheet S already formed on the fixed table is closed with a tail clamp TC.
1 and TC2, the first and second strip feed clamps SF are clamped against the fixed table 20.
As one of 1 and SF2 clamps and moves the composite strip and moves the other to the clamping position,
A control device for controlling the feeder, the shear, the first and second strip feed clamps, the step feed clamp, and the tail clamp is configured.

In the above description, the composite strip is fed by the feeder having a structure in which the strip is fed between the feed roller and the holding roller, and the tip of the composite strip is set near the shear. When the position is reached, the leading end of the strip is held by a clamp, but in the method of the present invention, the means for positioning the leading end of the composite strip in the clamping position is optional.

For example, instead of the feeder 21 having a structure in which the strip is sandwiched between the feed roller and the pressing roller and fed, the composite strip AS is linearly slid to the shear side with the composite strip AS sandwiched from above and below. It is also possible to use a feeder for feeding to the shear side.

In the above description, the clamp position is set at a position slightly closer to the fixed table 20 side than the shear 22. However, the clamp position may be any position near the shear 22, and is limited to the above example. Not done. For example, at a position adjacent to the shear 22 on the side of the uncoiler 23 and the shear 2
The clamp position can be set at a position facing the gap between the lower blade and the upper blade. In order to set the clamp position at a position facing the gap between the lower blade and the upper blade of the shear 22, for example, a lifting means driven vertically by a cylinder is arranged at a position adjacent to the shear 22. The tip of the composite strip AS, which has been cut first and rides on the lower blade 22A, is moved by the lifting means to the lower blade 22 of the shear.
What is necessary is just to lift up to the position (clamp position) which faces the gap between A and the upper blade 22B.

As described above, the shear 2 on the uncoiler 23 side
When setting the clamp position at a position adjacent to 2,
The tip of the composite strip may be clamped by moving the strip feed clamps SF1, SF2 to the composite strip side through the gap between the lower blade and the upper blade of the shear.

As described above, the shear 22 on the uncoiler side
When the clamp position is set at a position adjacent to the feeder 21, the feeder 21 provided between the shear 22 and the uncoiler 23 in the example of FIG. 1 can be omitted.

[0098] In the above example, when the pull-feed is performed by clamping the leading end of the composite strip by the strip-feed clamp, the restraint of the strip by the feeder 21 is released. It is not necessary to release the constraint of the strip. For example, when performing pull feed, feeder 2
1, the composite strip AS may be kept in a constrained state, and the feed of the composite strip by the feeder 21 may be synchronized with the pull feed by the strip feed clamp. Further, after the leading end of the composite strip is clamped by the strip feed clamp, the restraint of the composite strip by the feeder 21 may be loosened, and pull feed may be performed while applying a brake to the composite strip by the feeder.

If two strip feed clamps are provided as in the above embodiment, the unit laminate can be formed efficiently. However, according to the present invention, the composite strip is formed by cutting the composite strip by the shear after the tip of the composite strip is clamped at a clamp position set near the shear and moved by a predetermined distance in the feeding direction of the composite strip. Performing a predetermined number of steps to form a unit laminate on the fixed table, and a unit laminate existing on the fixed table is collectively clamped and moved by the shift size in the feeding direction. Since the two steps of the step feeding step are performed alternately until the laminate block is formed, the number of the strip feed clamps is arbitrary when carrying out the present invention, and the clamps are at least 1
It is only necessary to be provided one by one. Similarly, at least one tail clamp and one step feed clamp may be provided, and the present invention is not limited to the case where two tail clamps and two step feed clamps are provided as described in the above embodiment.

For example, a strip feed clamp,
When one tail clamp and one step feed clamp are provided, only one slit is provided on a fixed table whose upper surface is arranged along the horizontal direction, and the composite strip is fed along the longitudinal direction of the slit. The feeder is arranged on the rear end side of the fixed table, and a shear is arranged between the feeder and the fixed table. Also, the supporter 1 is supported so as to be able to reciprocate in the feeding direction of the composite strip.
One movable plate which reciprocates in the feeding direction above the fixed table with the movement of the slider is supported by the slider. Further, one strip feed clamp for clamping the leading end of the composite strip fed by the feeder to the movable plate, and the composite sheet on the fixed table through the slit from the lower side of the fixed table to the movable plate. One step feed clamp to be clamped is supported by the slider.
In addition, one tail clamp for clamping the composite strip on the fixed table to the fixed table at a position close to the shear is provided.

In this case, the control device for controlling the feeder, the shear, the strip feed clamp, the step feed clamp, and the tail clamp feeds the composite strip by the feeder and sets the tip of the composite strip near the shear. After reaching the clamped position, the tip of the composite strip is clamped by a strip feed clamp, and the strip feed clamp is moved a predetermined distance forward in the feeding direction, and then the composite strip is cut by a shear. An operation of forming a unit laminate on the fixed table by performing a composite sheet forming process of forming one composite sheet; Step feed to move forward by the shift size in the feed direction And the operation is alternately performed until the laminate block is formed, and when the strip feed clamp clamps and moves the composite strip, the shear side of the composite sheet already formed on the fixed table is moved. The feeder, the shear, the strip feed clamp, the step feed clamp, and the tail clamp are controlled so that the end of is clamped to the fixed table by the tail clamp.

[0102]

As described above, according to the present invention, the feeding of the composite strip is mainly performed by the traction operation by the strip feed clamp, so that the ribbon constituting the composite sheet is waved during the feeding. There is an advantage that the quality of each unit laminate can be improved by preventing hitting or warping.

Further, according to the present invention, since the leading end of the composite strip is clamped and the composite strip is pulled and fed, the composite sheet is fed compared to the case where the composite sheet is fed by a feeder using a feed roller. Speed can be increased. Therefore, the unit laminate can be efficiently formed, and the manufacturing efficiency of the iron core can be improved.

In the present invention, when the composite strip already laminated on the fixed table is clamped by the tail clamp when pulling the composite strip, the fixed table When pulling the composite strip while sliding on the composite sheet laminated on top, it prevents the position of the already cut composite sheet from shifting, and an appropriate unit laminated body without displacement of the composite sheet. And the quality of the wound iron core can be improved.

Furthermore, in the present invention, two strip feed clamps and two step feed clamps are provided, and one of the strip feed clamps clamps the composite strip to perform the pull feed while the other clamp is performing pull feed. Is controlled so as to return the clamp for strip feed to the clamp position, and pull feed is alternately performed by the two clamps for strip feed to form a series of composite sheets. Since the time required to start the pull feed for forming the next composite sheet after the formation of the composite sheet can be shortened, the work of stacking thin ribbons can be efficiently performed.

[Brief description of the drawings]

FIG. 1 is a configuration diagram schematically showing an overall configuration of an apparatus used in an embodiment of the present invention.

FIG. 2 is a side view partially showing a configuration example of a main part of the stacking device used in the embodiment of the present invention.

FIG. 3 is a view taken in the direction of arrows AA in FIG. 2;

FIG. 4 is a perspective view schematically showing a configuration example near a first strip feed clamp and a first step feed clamp used in the embodiment of the present invention.

FIG. 5 is a perspective view schematically showing a configuration example of a main part when a tail clamp used in an embodiment of the present invention is in an unclamped state.

FIG. 6 is a perspective view schematically showing a configuration example of a main part when a tail clamp used in an embodiment of the present invention is in a clamped state.

FIG. 7 is a perspective view showing a state in which the composite strip is being pulled in the embodiment of the present invention.

FIGS. 8A to 8H are operation explanatory diagrams sequentially showing the operation of the stacking device in the embodiment of the present invention.

FIG. 9 is a flowchart showing a part of an algorithm of a program executed by a microcomputer to realize a control device used in carrying out the present invention.

FIG. 10 is a flowchart showing another part of the algorithm of the program executed by the microcomputer to realize the control device used in carrying out the present invention.

FIG. 11 is a flowchart showing still another part of the algorithm of the program.

FIG. 12 is a flowchart showing still another part of the algorithm of the program.

FIG. 13 is a front view showing an example of a structure of a circular wound core.

FIG. 14 is a front view showing an example of the structure of a rectangular wound iron core.

FIG. 15 is an explanatory view showing an example of a structure of a joint portion of a wound core.

FIG. 16 is a configuration diagram showing a configuration of a conventional stacking device.

FIG. 17 is a configuration diagram schematically showing a configuration of an apparatus for manufacturing a wound iron core by winding a steel sheet laminate.

DESCRIPTION OF SYMBOLS 20 Fixed table 21 Feeder 22 Shear SL1 First slider SL2 Second slider M1 First movable plate M2 Second movable plate SF1 First strip feed clamp SF2 Second strip feed clamp SC1 First step feed clamp SC2 Second step feed clamp TC1 First tail clamp TC2 Second tail clamp

Claims (4)

[Claims] 1. A strip formed by feeding a composite strip formed by laminating a plurality of long amorphous magnetic alloy thin strips in the longitudinal direction and cutting the strip into a predetermined length by a shear. A single unit of the composite sheet or a laminate of a plurality of the composite sheets as a unit laminate, and a fixed table in which a plurality of unit laminates having different lengths are shifted in position in the longitudinal direction by a predetermined shift dimension. In the method of stacking amorphous magnetic alloy ribbons for an iron core forming a laminate block having a step at an end in the longitudinal direction by stacking on the top, the tip of the composite strip is set near the shear. After clamping at the clamp position and moving the composite strip by a predetermined distance in the feeding direction, the shear is cut into the composite strip to form the composite sheet. Performing a predetermined number of steps to form a unit laminate on the fixed table, and clamping the unit laminates present on the fixed table collectively in the feeding direction by the shift dimension. 2. A method of stacking amorphous magnetic alloy ribbons for an iron core, wherein two steps, that is, a step feeding step of moving and a step of feeding are alternately performed until the laminated block is formed. 2. A strip formed by feeding a composite strip formed by laminating a plurality of long amorphous magnetic alloy thin strips in a longitudinal direction and cutting the composite strip into a predetermined length by a shear. A single unit of the composite sheet or a unit obtained by further laminating a plurality of the composite sheets as a unit laminated body, and a plurality of unit laminated bodies having different lengths are laminated in a state where their respective positions are shifted in the longitudinal direction. A method of stacking amorphous magnetic alloy ribbons for an iron core forming a laminated block having a step at an end, wherein a first region extending in a region between a front end and a rear end is parallel to each other.
And a fixed table having a second slit and an upper surface arranged along a horizontal direction, and the first and second slits disposed on a rear end side of the fixed table and allowing the composite strip to be disposed. A feeder for feeding the fixed table side along the longitudinal direction of the composite strip, and a shear disposed between the feeder and the fixed table; First and second sliders supported to obtain the first and second sliders;
First and second movable plates supported by the second slider and reciprocating in the feeding direction above the fixed table with the movement of the two sliders; and the first and second movable plates. First and second strip feed clamps, each of which is supported by a second slider and clamps a tip end of a composite strip fed by the feeder to first and second movable plates, respectively; The composite sheet on the fixed table is clamped against the first and second movable plates through the first and second slits from below the fixed table, respectively, supported by the first and second sliders. First and second step-feeding clamps, and clamping the composite strip on the fixed table against the fixed table at a position closer to the shear. The composite strip is fed by the feeder, and when the leading end of the composite strip reaches a clamp position set near the shear, the leading end of the composite strip is used for the first strip feed. A first composite sheet forming a composite sheet by cutting the composite strip with the shear after clamping by a clamp and moving the first strip feed clamp to the front side in the feeding direction by a predetermined distance; Forming the composite strip, feeding the composite strip by the feeder, and clamping the distal end of the composite strip by the second strip feed clamp when the distal end of the composite strip reaches the clamping position; The strip feed clamp is moved a predetermined distance forward in the feeding direction. Thereafter, a unit laminate forming step of forming a unit laminate on the fixed table by alternately performing a second composite sheet forming step of cutting the composite strip by the shear to form another composite sheet, and A step feeding step in which the unit laminate existing on the fixed table is collectively clamped by at least one of the first and second step feed clamps and moved to the front side in the feeding direction by the shift size. The two steps are alternately performed until the laminate block is formed. In the unit laminate formation step, the first or second strip feed clamp is already fixed in the process of clamping and moving the composite strip. The end on the shear side of the composite sheet formed on the table is clamped to the fixed table by the tail clamp. Stacking method of the iron core for an amorphous magnetic alloy thin strip, characterized in that to return the other in the course of one of the first and second strip feed clamps are moved to clamp the composite strip into the clamping position. 3. A strip formed by feeding a composite strip formed by laminating a plurality of long amorphous magnetic alloy ribbon strips in the longitudinal direction and cutting the composite strip into a predetermined length by shearing. A single unit of the composite sheet or a unit obtained by further laminating a plurality of the composite sheets as a unit laminated body, and a plurality of unit laminated bodies having different lengths are laminated in a state where their respective positions are shifted in the longitudinal direction. An apparatus for stacking amorphous magnetic alloy ribbons for an iron core forming a laminated body block having a step at an end, comprising a slit extending in a region between a front end and a rear end,
A fixed table arranged with its upper surface extending along the horizontal direction, and a feeder arranged on the rear end side of the fixed table to feed the composite strip to the fixed table side along the longitudinal direction of the slit. A shear disposed between the feeder and the fixed table; a slider supported so as to be able to reciprocate in a feeding direction of the composite strip; and a slider supported by the slider and moving with the slider. A movable plate provided so as to reciprocate in the feeding direction above a fixed table; and a strip supported by the slider and clamping a leading end of a composite strip fed by the feeder to the movable plate. A feed clamp; and a composite system on the fixed table supported by the slider and passed through the slit from below the fixed table. A step feeding clamp for clamping the composite strip on the movable plate; a tail clamp for clamping the composite strip on the fixed table to the fixed table at a position near the shear; and feeding the composite strip by the feeder. When the leading end of the composite strip reaches a clamp position set near the shear, the leading end of the composite strip is clamped by a strip feed clamp, and the strip feed clamp is moved forward in the feeding direction. After moving a predetermined distance, the shear is cut by the shear to perform a composite sheet forming process of forming one composite sheet to form a unit laminate on the fixed table; and Existing unit laminates are collectively processed by the step feed clamp. A step-feeding operation of clamping and moving the same to the front side in the feeding direction by the shift size is alternately performed until the laminate block is formed, and the strip feed clamp clamps the composite strip. And moving the feeder, the shear, the strip feed clamp and the step so that the shear-side end of the composite sheet already formed on the fixed table is clamped to the fixed table by the tail clamp. A stacking device for an amorphous magnetic alloy ribbon for an iron core, comprising a controller for controlling a feed clamp and a tail clamp. 4. A strip formed by feeding a composite strip formed by laminating a plurality of long amorphous magnetic alloy ribbon strips in a longitudinal direction and cutting the composite strip into a predetermined length by a shear. A single unit of the composite sheet or a unit obtained by further laminating a plurality of the composite sheets as a unit laminated body, and a plurality of unit laminated bodies having different lengths are laminated in a state where their respective positions are shifted in the longitudinal direction. An apparatus for stacking amorphous magnetic alloy ribbons for an iron core forming a laminate block having a step at an end, wherein a first region extending in parallel with a region between a front end and a rear end is provided.
And a fixed table having a second slit, the upper surface of which is arranged along the horizontal direction, and the first and second slits, which are arranged on the rear end side of the fixed table and allow the composite strip to be disposed. A feeder that feeds the fixed table side along the longitudinal direction of the composite strip; a shear disposed between the feeder and the fixed table; and a feeder that is disposed at a position where they do not interfere with each other and reciprocates in the feed direction of the composite strip. First and second sliders supported so as to obtain, and above the fixed table in a direction parallel to the feeding direction with the movement of both sliders supported by the first and second sliders, respectively. First and second movable plates provided so as to reciprocate, and a tip of a composite strip supported by the first and second sliders and fed by the feeder, respectively. First and second strip feed clamps for clamping portions to the first and second movable plates, respectively; and a lower side of the fixed table supported by the first and second sliders, respectively. The composite sheet on the fixed table through the first and second slits from the first
First and second step-feeding clamps for clamping against the movable plate, respectively, and a tail clamp for clamping the composite strip on the fixed table to the fixed table at a position near the shear. When the composite strip is fed by the feeder and the tip of the composite strip reaches a clamp position set near the shear, the tip of the composite strip is moved to the first position.
After the first strip feed clamp is moved a predetermined distance forward in the feeding direction, the composite strip is cut by the shear to form one composite sheet. 1
A composite sheet forming step, and when the composite strip is fed by the feeder and the leading end of the composite strip reaches the clamping position, the leading end of the strip is moved to the second position.
After the second strip feed clamp is moved a predetermined distance to the front side in the feeding direction, the composite strip is cut by the shear to form another composite sheet. An operation of alternately performing a second composite sheet forming process and stacking a plurality of composite sheets on the fixed table to form a unit laminated body; A step-feeding operation of collectively clamping by a feeding clamp and moving the same to the front side in the feeding direction by the shift size until the stacked block is formed. Or, when the second strip feed clamp clamps and moves the composite strip, it is already formed on the fixed table. In the process of clamping the shear-side end of the composite sheet to the fixed table by the tail clamp, one of the first and second strip feed clamps clamps and moves the composite strip. The feeder, the shear, and the first and second clamps return the other clamp to the clamp position.
A stacking device for an amorphous magnetic alloy ribbon for an iron core, comprising: a control device for controlling the strip feed clamp, the first and second step feed clamps, and the tail clamp.