JP3454852B2 - Feeding device for cutting machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a material feeding device of a cutting machine for carrying out and discharging a tip material and a tail material generated when a work is cut by a cutting machine.

[0002]

2. Description of the Related Art Conventionally, for example, a band saw machine as a cutting machine is
The work is placed on the work conveyor, the work is clamped by the main body vice, and the work is cut by the saw blade provided in the saw blade housing.

In particular, when cutting the tip material of the work with a saw blade, the work is clamped by the body vise, and the tip material is clamped by the front vise to cut, and the front vise that clamps the cutting material is moved forward. I have moved it and carried it out. In addition, when cutting the tail end material of the work with a saw blade, the tail end material is clamped with the main body vise to perform the cutting work, and then the front vise is grasped to clamp the tail end material. Is moved to the front and carried out.

[0004]

By the way, in the above-mentioned prior art, since the tip material is clamped by the front vise and carried out, when the work is shaped steel such as H steel,
When clamping the work with the front vise, a length (thickness) is required to withstand the deformation of the tip material due to the clamping force, and the minimum length (thickness) of the tip trimming material is long (thick). is there.

Further, since the tail end material (remaining material) is cut into pieces before the main body vise after cutting, the minimum length (thickness) that can be processed structurally becomes long (thick), and the work is wasted. There is a drawback that becomes.

In view of the above-mentioned problems, an object of the present invention is to easily carry out a tip material and a tail material when cutting a work, and moreover, to automatically carry and carry out the tip. It is an object of the present invention to provide a material feeding device for a cutting machine, in which the length of the material and the tail end material is made shorter than in the conventional case, and the waste of the work can be minimized.

[0007]

The present invention has been made in view of the conventional problems as described above. The invention according to claim 1 is provided in a tip material carrying-out device arranged in front of a cutting position in a cutting machine. And a front side clamper capable of clamping a workpiece at the rear end of the clamp arm, and the front and rear clamp arms provided on the tail end material unloading device arranged at the rear side of the cutting position. with movably providing the workpiece at the front end of the clamp arm provided with side clamper after possible clamp, we have the front part of the clamper of the rear and the rear side of the front clamper
A convex portion that can be engaged with a concave portion provided on one side is provided on the front side.
The rear part of the clamper and the front part of the rear clamper.
It is a structure provided for the other side .

The invention according to claim 2 is the same as that of claim 1.
In the material feeder of the cutting machine, the front and rear clampers are
Moves to the left and right and up and down to the clamp arm respectively
It is one that is supported .

[0009]

[0010]

[0011]

[0012]

[0013]

Embodiments of the present invention will be described in detail below with reference to the drawings.

Referring to FIGS. 1, 2 and 3, for example, a horizontal band saw machine 1 as a cutting machine is schematically provided with a base 3.
It is rotatably supported horizontally via a pin 5 on the machine base 7
And a cutting machine body 11 composed of a saw blade housing 9 that is vertically movable above the machine base 7. The turning of the machine base 7 is performed by operating a turning actuating device provided appropriately, but since it is already known, detailed description thereof will be omitted.

For example, a plurality of rotatable rollers 13 as a work conveyor extending in the front-rear direction (vertical direction in FIG. 1, left-right direction in FIG. 3) with respect to the base 3.
A roller conveyor 15 supporting the above is installed upright. Although illustration is omitted, the plurality of rollers 13 are configured to be capable of feeding the work W in the front-rear direction by being rotated by, for example, a chain.

A front vise 17 for clamping the work W is mounted on the front side (lower side in FIG. 1) of the cutting machine body 11 on the base 3. Last vice 1
A fixed vise jaw 21 for clamping the work W is fixed to one end of the vise bed 19 in FIG. 7, and the other end of the vise bed 19 can approach and separate from the fixed vise jaw 21. A movable vice jaw 23 is attached. This movable vice jaw 23
Is reciprocated by a vise cylinder 25 mounted on a side portion of the vise bed 19. Although not shown, the vise bed 19 may be configured to move in the front-rear direction (vertical direction in FIG. 1) by, for example, a fluid cylinder.

The pin 5 is provided lower than the position of the band saw blade when the saw blade housing 9 is at the lowest position so as not to be cut by the band saw blade described later.

The saw blade housing 9 moves up and down on the machine base 7 pivotally supported by the base 3 so that the work W can be cut at an angle appropriately inclined with respect to the longitudinal direction. A rotatable main body vise 27 as a rear vise for clamping the work W is provided behind the cutting position of the cutting part of the work W while being freely provided.

The saw blade housing 9 is vertically movably supported by a main post 29 and a sub post 31 which are vertically installed on the machine base 7. More specifically, the saw blade housing 9
Has a C-shape with housing portions 35 and 37 on both sides of an appropriately inclined beam member 33, and the drive wheel 3 is provided in each housing portion 35 and 37.
9. A driven wheel 41 is rotatably installed. An endless band saw blade 43 is wound around the drive wheel 39 and the driven wheel 41. The portion where the band saw blade 43 cuts the work W is fixed by a fixed guide arm 45 fixed to the beam member 33 and a saw blade guide 49, 51 provided at the lower end of a movable guide arm 47 which is positionally adjustable. Vertically twisted.

In order to move the saw blade housing 9 up and down, a lifting hydraulic cylinder 53 is vertically provided at a position close to the main post 29, and the piston rod of the lifting hydraulic cylinder 53 has the above-mentioned structure. Beam member 3
It is connected to 3. An operation panel 57 is provided above the post 55 standing on the machine base 7.

The swingable main body vise 27 is composed of a fixed vise jaw 59 and a movable vise jaw 61. The movable vise jaw 61 is a vise cylinder 6.
3 is provided so as to be able to approach and separate from the fixed vise jaw 57.

With the above construction, the work W, such as H-shaped steel, is placed on the roller 13 of the rear work conveyor 15 and, for example, the roller 13 is rotated to rotate the work W.
To send to the front side. Then, the desired position of the work W is positioned at the cutting position of the cutting unit.

By actuating the vice cylinders 61 and 25 of the main body vise 27 and the front vise 17, the fixed vise jaw 5 is moved.
The work W is clamped by the main body vise 27 and the front vise 17 by bringing the movable vise jaws 59, 23 close to the 7, 21.

By rotating the drive wheel 39, the band saw blade 43 runs and rotates, and by further operating the lifting hydraulic cylinder 53 to lower the saw blade housing 9, the band saw blade 43 cuts the work W. Will be done. The angle cutting is performed on the work W by rotating the cutting machine body 11 about the pin 5 as a fulcrum and indexing and positioning the work body 11 at a desired angle.

A front end material unloading device 65 and a tail end material unloading device 67 are provided on the front side and the rear side (right side in FIG. 1) of the roller conveyor 15, respectively. A bracket 69 which constitutes a part of the tip material carrying-out device 65 is fixed to the frame 15F of the roller conveyor 15, and as shown in FIG.
The clamp main body 73 is mounted on the clamp main body 73, and the clamp main body 73 is configured to swing vertically with the pin 71 as a fulcrum by a drive device (not shown) such as a fluid cylinder.

The clamp body 73 has a front-back direction (see FIG. 1).
A clamp arm 75 extending vertically is attached, and a clamper 77 is provided at the tip (upper end in FIG. 1) of the clamp arm 75. The clamp arm 75 is provided so as to be movable in the front-rear direction with respect to the clamp body 75. Although the driving means for this movement is not shown in the figure, any known driving means such as a fluid cylinder, a ball screw or a rack and pinion may be used.

In the present embodiment, the clamp main body 73 is described as swinging in the vertical direction. However, it may be a mechanism in which the clamp main body 73 can be simply moved upward to stand by at a position higher than the height of the work W.

The clamper 77 is provided at the tip of the clamp arm 75. That is, more specifically, as shown in FIG. 5, the slide member 79 is provided in the left-right direction (the direction orthogonal to the paper surface in FIG. 5) at the tip of the clamp arm 75 by, for example, an already known appropriate means. An L-shaped lower clamp jaw 81 is vertically movable with respect to the slide member 79 by, for example, an appropriate known means such as a fluid cylinder.

An upper plate 83 is provided on the upper end of the lower clamp jaw 81.
A fluid cylinder 85 is mounted on the upper part 3. At the lower end of the piston rod 87 mounted on the fluid cylinder 85, an upper clamp jaw 89 is provided with a lower clamp jaw 81.
It is supported by a guide member 91 provided at the upper part so as to be vertically movable. Moreover, a work detection sensor C for detecting the clamp depth is provided at the center of the upper clamp jaw 89.

The lower end of an L-shaped bracket 93 is fixed to the upper portion of the clamp arm 75 on the tip side. The tip of the bracket 93 and the upper plate 8
A spring 95 is interposed between the upper plate 83 and the upper plate 83, and the upper plate 83 is always urged upward by the urging force of the spring 95.

With the above structure, the lower clamp jaw 81
The tip of the workpiece W is inserted between the upper clamp jaw 89 and the upper clamp jaw 89 to abut against the guide member 91, and the fluid cylinder 85 is operated to lower the upper clamp jaw 89 via the piston rod 87. W is lower clamp jaw 81 and upper clamp jaw 89
It will be clamped in cooperation with.

Further, since the clamper 77 is movable in the left-right direction (direction orthogonal to the paper surface in FIG. 5) and the up-down direction, for example, as shown in FIGS. 6 (A) and 6 (B). If the work W is a square pipe or H-shaped steel, it can be clamped at either of the positions indicated by the dotted circles. Therefore, the clamp position of the clamper 77 can be moved and clamped according to the change in the size (dimension) and shape of the work W, which can be handled.

As shown in FIG. 7, the tip portions of the lower and upper clamp jaws 81 and 89 of the clamper 77 are, as shown in FIG.
It has become 1K and 89K.

Since the tail end material unloading device 67 has substantially the same structure as the above-mentioned tip end material unloading device 65, the same parts are designated by the same reference numerals and detailed description thereof will be omitted.
As shown in FIG. 1, the difference is that the clamper 77 of the tip material unloading device 65 is provided at the rear end of the clamp arm 75, whereas the tail material unloading device 67 is different. The clamper 77 is provided at the front end of the clamp arm 75. Further, the clamp portion at the tip of the clamper 77 of the tail end material unloading device 67 is the same as the clamp portion of the tip material unloading device 65, but as shown in FIG. 8, an uneven (comb tooth) clamp 81K, 89
K is the one intersecting with each other.

A scrap shooter 97 is connected to one front side (left side in FIG. 1) of the roller conveyor 15 which is on the front side of the cutting section in the cutting machine body 11, and the left side of the scrap shooter 97 is connected to the scrap shooter 97. A scrap scrap conveyor 99 is arranged in the left-right direction.
That is, the front end of the scrap conveyor 99 is connected to the scrap shooter 97, and the rear end of the scrap conveyor 99 is provided above the scrap box 101 by inclining to the upper left as shown in FIG. There is.

The other side of the roller conveyor 15 at the position corresponding to the scrap shooter 97 (right side in FIG. 1).
Is equipped with a pusher 103. That is,
As the pusher 103, the pusher member 1 is attached to the tip of the piston rod 107 mounted on the fluid cylinder 105.
09 are provided.

[0037] With this configuration, in FIG. 1, when the scrap (tip material W _A or tail material W _B) is Okuzai on the roller conveyor 15 of the positions indicated by the arrows 111, the fluid cylinder 105 of the pusher 103 By actuating and moving the pusher member 109 to the left in FIG. 1 via the piston rod 107, the scrap is inserted into the scrap shooter 97 and rides on the scrap conveyor 99. The scrap loaded on the scrap conveyor 99 is conveyed by the operation of the scrap 99, dropped into the scrap box 101, and stored.

When cutting the tip material W _A of the work W, the work W is placed on the roller conveyor 15, the tip material W _A is positioned in the cutting processing section, and the body vice 2 is used.
By activating 7, the work W is clamped to the main body vise 27 as shown in FIG.

Then, the tip material unloading device 65 is operated to move the clamp arm 75 upward with respect to the clamp body 73 in FIG. 1, and the tip material W _A is clamped by the clamper 77. In this state, the band saw blade 43 performs a cutting operation. After that, the separated tip material W _A moves the clamp arm 75 to the position of arrow 111 in FIG.
At, the material is moved downward and sent.

Then, the unclamped state of the clamper 77 and a slight movement of the clamper in the flow direction of the work W causes the tip material W _A to be placed on the roller conveyor 15 at the position of the arrow 111. And the clamper 77
Escapes to a position where it does not interfere with the tip material W _A.

Then, when the fluid cylinder 105 of the pusher 103 is operated, the pusher member 109 moves to the left in FIG. 1 via the piston rod 107, and the tip material W _A passes through the scrap shooter 97 and onto the scrap conveyor 99. Dropped and scrap box 1
It will be discharged to 01.

Next, the operation of cutting the tail end material W _B of the work W will be described. First, the tail end material W _B is shown in FIG.
In the short case as shown in (A) and (B),
While the work W is clamped by the front vise 17 and is being cut by the band saw blade 43, the clamp arm 75 of the tail end material carrying-out device 67 is moved downward in FIG. 1, and the clamper 77 is shown in FIG. 10 (A). The tail end material W _B is clamped as shown in FIG.

After the cutting is completed, the position of the clamper 75 of the tail end material carrying-out device 67 is moved forward until the tail end material W _B reaches the position shown in FIG. 10 (B). At that position, the tip material unloading device 6
5, the clamp arm 75 is moved upward in FIG. 1, and the clamper 77 takes the tail end material W _B as shown in FIG. 10 (B). Then, at that position, from the clamper 77 of the tail end material carrying-out device 67 to the tip end material carrying-out device 6
The gripper of No. 5 is replaced. The subsequent operation is the same as the processing of the tip material W _A described above, and the tail material W
_B will be discharged to the scrap box 101.

Clamper 77 of the tail end material unloading device 67
When gripping from the tip end material unloading device 65 to the clamper 77, the upper and lower clamp jaws 89, 81 in the tail end material unloading device 67 are shown in FIG. 10B.
Minimum recess, the upper of the raised portion and the tip member carry-out device 65, the convex portion of the lower clamp jaw 89,81, it is possible to mesh as close the recess abuts, the length of the tail member W _B of Can be short.

[0045] As length of the tail member W _B is shown in Figure 11, in the case of longer, first, when cutting the workpiece W by the band saw blade 43, is shown in FIG. 11 (A) As described above, the work W is clamped by the front vise 17 and the tail end material W _B is clamped by the main body vise 27.
The tail end material W _B is clamped by the No. 7 clamper 77.

After the cutting is completed, the position of the tail end material W _B is shown in FIG.
As shown in (B), the band saw blade 43 is advanced to the position on the front side. With clamper 77 of the tip member carry-out device 65 in this position to clamp the tail end material W _B, performs re looking bunch by the clamper 77 of the tail end material carry-out device 67 to unclamp.

[0047] When a long length of the tail member W _B is from the detection of the clamping depth by the workpiece detection sensor C provided in the clamper 77 at the tip material carry-out device 65, a clamper 77 at the tip material carry-out device The tail end material W _B is clamped at. Thereafter, the tail end W _B scrap box 1 by the same operation as the processing of the above-described tip W _A
It will be discharged to 01.

Therefore, in any case, by providing the tip end material carry-out device 65 and the tail end material carry-out device 67, the treatment of the tip end material W _A and the tail end material W _B can be performed more easily than before. Further, since the clamp portions of the clamper 77, that is, the upper and lower clamp jaws 89, 81 in the tip material carrying-out device 65 and the tail end material carrying-out device 67 are made to have an uneven shape and mesh with each other, the tip material W _A , the tail The length of the scrap material W _B can be minimized.

Further, a scrap conveyor 99 is provided on one side of the roller conveyor 15 in front of the cutting material 11, and the roller conveyor 1 corresponding to the scrap conveyor 99.
By providing pusher 103 respectively to the other side of the 5, it is possible to perform the tip member W _A, the discharge of the tail end material W _B automatically.

When processing a long tail end material W _B, the clamp depth is detected by the work detection sensor C provided in the clamper 77 in the tip end material carry-out device 65 to stabilize the clamper and the tail end material W _{B. B} can be clamped.

The present invention is not limited to the above-described embodiments, but can be implemented in other modes by making appropriate changes. In this embodiment, the front vise 17 and the main body vise 27 are provided on the front side and the rear side of the cutting machine body 11.
And a tip material carrying-out device 65 and a tail end material carrying-out device 67
However, a band saw machine provided with a material feeding vise instead of the main body vise 27 can also be used. Further, the front vise 17 on the front side, a cutting machine provided with the tail end material unloading device 67 on the rear side, or the tip material unloading device 65 on the front side, on the rear side,
A cutting machine equipped with a material feeding device (feed vise, feed roller, etc.) can also be used.

The example in which the fluid cylinder 85 is used as the clamping means for activating the upper and lower clamp jaws 89, 81 to clamp the work W has been described, but a known driving means such as a feed screw or a link mechanism may be used. I do not care.

A horizontal band saw machine has been described as an example of the cutting machine, but a vertical band saw machine, a circular saw machine, and other machines can also be used.

[0054]

As is apparent from the above description of the embodiments, according to the present invention, a recess or a recess is formed at the rear portion of the front clamper 77 which can be moved back and forth in the tip material carrying-out device 65 arranged at the front side of the cutting position. protrusions are provided, said the front of the clamper 77 on the rear side of the movable back-and-forth movement in the cutting position tail material carry-out device 67 arranged on the rear side of the recessed portion also provided in the clamper 77 of the front since also the convex portions of the engageable in correspondence with the convex portion is configured to include a concave portion, a clamper 7 of the recessed portion or the projecting portion and the rear side of the front clamper 77
Those also protrusions corresponding in 7 can engage a recess, even if the work is short, the workpiece can be passed reliably received from clamper 77, for example the rear side to the front side of the clamper 77 Therefore, the conventional problems as described above can be solved.

[Brief description of drawings]

FIG. 1 is a plan view of a horizontal band saw machine as a cutting machine according to an embodiment of the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a side view of FIG.

FIG. 4 is a perspective view of a tip material unloading device.

FIG. 5 is an enlarged cross-sectional view of an embodiment of a clamper in the tip material carrying-out device.

FIG. 6 is a front view showing an embodiment of a work to be cut.

FIG. 7 is a plan view of the tip of the clamper in the tip material carrying-out device.

FIG. 8 is a plan view of the tip of the clamper in the tail end material carrying-out device.

FIG. 9 is an explanatory diagram illustrating a processing operation when a tip material of a work is cut.

FIG. 10 is an explanatory diagram illustrating a processing operation when the tail end material is cut when the tail end material of the work is short.

FIG. 11 is an explanatory diagram illustrating a processing operation when the tail end material of the work is cut when the tail end material is long.

[Explanation of symbols]

1 Horizontal band saw machine (cutting machine) 9 saw blade housing 11 Cutting machine body 15 roller conveyor 17 Front vice 27 body vice 43 band saw blade 65 Advanced material unloading device 67 tail end material unloading device 73 Clamp body 77 Clamper 81 Lower clamp jaw 89 Upper clamp jaw 97 Scrap Shooter 99 scrap conveyor 101 scrap box 103 pusher 109 Pusher member

Claims (2)

(57) [Claims] 1. A clamp arm (7) provided on a tip material carrying-out device (65) arranged on the front side of a cutting position in a cutting machine.
5) is provided so as to be movable back and forth, a front side clamper (77) capable of clamping a work is provided at the rear end of the clamp arm (75), and a tail end material carrying-out device (67) disposed at the rear side of the cutting position. )) Clamp arm (75)
And the clamp arm (7
A rear side clamper (77) capable of clamping a work is provided at the front end of 5), and a rear portion of the front side clamper (77).
And either the front part of the rear side clamper (77)
The front side clamper with the protrusion that can be engaged with the recess provided on the
-In the rear of the (77) and in front of the rear clamper (77)
A material feeding device for a cutting machine, characterized in that it is provided in either one of the parts . 2. The material feeding device for a cutting machine according to claim 1, wherein the front and rear clampers (77) are supported by the clamp arms (75) so as to be movable in the left-right direction and the up-down direction, respectively. Characteristic cutting device material feeding device.