JP2691634B2 - Coil forming equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial applications]

 The present invention relates to a coil forming device.

[Prior art]

Generally, heat-generating lamps installed in electric heaters and copying machines,
An electric heating coil in which a heating wire such as a tungsten wire is formed into a predetermined shape, that is, for example, as shown in FIG. 8, a terminal lead portion 1a on one end side and a terminal lead portion on the other end side.
An electric heating coil 3 having a plurality of heating coil portions 2a to 2d formed between 1b is used.
It is formed by winding a heating wire around the core. At that time, first, the terminal lead 1a on one end side is roughly wound, then the heating coil portions 2a to 2d are precisely wound, and finally, the terminal lead portion 1b on the other end side is roughly wound, and this coil is wound. The electrothermal coil 3 is obtained by extracting from the core material.

[Problems to be solved by the invention]

However, the electric heating coil 3 formed in this way
Shows that the terminal lead portions 1a, 1b are in a curved state due to the coarse winding of the terminal lead portions 1a, 1b. Therefore, when connecting the electrothermal coil 3 to the terminals of the heat-generating lamp, However, automation was difficult due to its complexity. Therefore, as shown in FIG.
The heating wires 5 are successively wound around different positions, and the terminal lead wires 1a, 1b, the heating coil portions 2a to 2n, and the intermediate lead portion 7a are disposed between the one end side waste coil portion 6a and the other end side waste coil portion 6b. , 7b are formed, but if after the molding, the terminal windings 6a, 6b are cut off and removed from the core material 4, the terminal lead portions 1a,
Deformation of 1b often occurred and was therefore not fully satisfactory. The present invention has been devised in view of such drawbacks, and is equipped with a terminal lead portion straightening device that straightens the terminal lead portions subsequent to forming a semi-finished product coil in which waste winding portions are formed at both ends. As a result, it has been found that it is possible to always obtain an electric heating coil as a final product in which the terminal lead portions 1a and 1b are kept in a linear state, and the present invention has been completed.

[Means for Solving the Problems]

That is, one of the coil forming devices according to the present invention is, as described in claim 1, a first chuck that holds the tip of the heating wire and one end of the core material, and a second chuck that holds the other end of the core material. The core material rotating device mounted so that the chuck can be driven and rotated, and the heating wire from the wire material supplying device is projected by the third chuck so as to project the tip of the heating wire.
So that the heating wire that can be supplied to the chuck and that is supplied to and gripped by the first chuck can be guided to the second chuck side along the core material when the third chuck is opened. The wire rod guide device mounted movably, the core member and the heating wire, and
Two wire gripping device movably mounted so that the fourth chuck mounted so as to be rotatable together with the two chucks can be moved to a position where the heating wire is wound around the core material, In the coil forming device configured so that the heating wire is wound around different positions of the core material one after another to form a semi-finished coil in which a heating coil portion is formed between the waste winding portions at both ends. A terminal lead straightening device for straightening a terminal lead portion connecting the heat generating coil portion to the heat generating coil portion is formed following the shaping of the semi-finished coil. Further, another one of the coil forming devices according to the present invention is, as described in claim 2, in the coil forming device according to claim 1, wherein the core material rotating device has one chuck for the other The first and second chucks are mounted so that the chuck can be moved toward and away from each other. Another aspect of the coil forming device according to the present invention is, as described in claim 3, the coil forming device according to claim 2, in which the first chuck mounted so as not to move is fixed. It is characterized in that the second chuck is mounted so as to be able to approach and separate from each other. Further, as another one of the coil forming devices according to the present invention, as described in claim 4, in the coil forming device according to claim 3, the first and second chucks are vertically mounted. It is characterized by. Another aspect of the coil forming device according to the present invention is, as described in claim 5, in the coil forming device according to claim 4, wherein a second chuck is mounted above the first chuck. It is characterized by that. Further, another one of the coil forming devices according to the present invention is, as described in claim 6, the coil forming device according to claim 1, 2, 3, 4 or 5, wherein the terminal lead straightening device is ,
The terminal lead portion of the semi-finished product coil wound around the core material gripped and rotated by the first and second chucks together with the core material, with respect to the pair of the first free roller and the first free roller. It is characterized in that it can be supported by a three-point contact roller mechanism of a second free roller which is pressed against.

[Action]

A heating wire is wound around different positions of the core material one after another to form a semi-finished product coil with a heating coil part formed between the ends of the waste coiled parts, and then the ends of the ends are straightened to form a waste coiled part. The terminal lead part connected to the heating coil part is straightened. At that time, the terminal lead correction device
The terminal lead portions of the semi-finished product coil wound around the core material that is gripped and rotated by the first and second chucks are pressed together with the core material to the pair of first free rollers and the first free rollers. It is supported and corrected by the three-point contact roller mechanism of the second free roller.

【Example】

FIG. 1 is a front view and a ZZ arrow view of FIG. 1.
In FIG. 2, this coil forming device is shown as a device frame.
10, core material rotating device 11, wire guide device 12 and both wire gripping device
Device 13, terminal lead straightening device 14, wire rod feeding device 15, etc.
Wearing, and the device frame 10 includes a base 16
The right column 17 and the left column 18 are attached to the
ing. One end of the core rotating device 11 is attached to the right support 17.
Lower bracket 19 with the other end attached to the left column 18
And the right guide rail 20 mounted on the right column 17 and the left support.
Can slide on the left guide rail 21 mounted on the pillar 18.
The upper bracket 22 and the lower bracket 19
A plurality of first chucks mounted at predetermined intervals so that they can rotate.
Hook 23 and the upper bracket 22 so that they can rotate.
A plurality of second chucks that are mounted so as to face the group 23
Drive device 25, which is equipped with
The first and second chucks can be driven and rotated via the
An unillustrated shroud mounted on the pillar 17 and the left pillar 18
So that the upper bracket 22 can be moved up and down via the linder
It is configured. Therefore, by moving the upper bracket 22 up and down,
Put the second chuck 24 attached to the
For the first chuck 23 mounted on the bracket 19
It can be moved toward and away from each other, but this is the first and second chucks 2
Depending on the length of the core material 4 to be gripped with 3,24,
Done. Although not shown, the first chuck 23 is a core material.
A core material gripping chuck for gripping the lower end of 4 and winding around the core material 4.
A chuck for gripping the heating wire that grips the tip of the heating wire
And the second chuck 24 is made of
It is configured to be able to grip only the upper end. On the other hand, the wire feeding device 15 is shown in FIG.
Through the drive device 30 mounted on the right column 17
The frame assembly 31 mounted so that it can move up and down.
The device 32, the tension adjusting device 33, and the wire rod straightening device 34 are attached to the structure.
Has been established. The frame body 31 has a rectangular shape in plan view.
The right column 17 and the left of the device frame 10
It is placed between columns 18 and can be moved up and down by being kept horizontal.
Is equipped with. In addition, the reel device 32 is a tangs to be wound around the core material 4.
A plurality of reels on which the heating wire 5 such as a ten wire is wound
(The same number as the number of the first chucks 23 installed)
Then, the heating wire 5 unwound from the reel device 32 is tensioned.
Adjusting device 33 tightens the wire and straightens the wire
The device 34 corrects the curl and so on to the wire guide device 12.
Supplied. Also, the wire rod guide device 12 is mounted so that it can move up and down.
One end of the frame 31 being attached, that is, in FIG.
At the left end of the side where the core rotating device 11 is installed,
Direction of the integrated bracket 35 and this bracket
The first horizontal frame 40 attached to the upper end of the
The second horizontal frame 41 (FIG. 3) attached to the first horizontal frame 40
And a plurality of the first horizontal frames 41 mounted on the second horizontal frame 41.
It is composed of three chucks 42 and the like. The number of the third chucks 42 is the same as that of the first chucks 23.
As it is worn, the first horizontal frame 40 is shown in FIG.
Gripped by the first and second chucks 23, 24 as shown
The core material 4 is placed close to the core material 4. In addition, a pair of bras to which the first horizontal frame 40 is attached
One side of the ket 35 is the right column 17 and the left column in FIG.
It is attached to the right end of a frame body 31 that can be moved up and down and is arranged between 18
And the other is attached to its left end. Also, the second horizontal frame 41 shown in FIG.
Is not shown attached to the first horizontal frame 40.
A pair of arms can slide on the guide rails attached to each arm.
Is engaged so as not to drop together with the arm, and the arm
Cylinders (not shown)
So that it can be moved horizontally toward the core 4 through the
Is being worn. The third chuck 42 is attached to the upper end of the second horizontal frame 41.
Is attached and the left end of the
The racket 44 is attached, and the wire material is attached to the bracket 44.
A guide 45 and a guide roller 46 are attached. In addition,
One of the arms is one of the front and rear directions of the first horizontal frame 40.
At one end, that is, at one end in the left-right direction in FIG.
And the other is attached to the other end,
One, the same number of brackets 44 as the third chuck 42 are mounted.
ing. Therefore, the gripping of the heating wire 5 from the wire rod supply device 15 is released.
State third chuck 42, wire rod guide 45 and guide roll
46 and pass the fixed length of the tip 5a through the bracket 44.
Then, the third chuck 42 is closed.
Can be grasped by
In the state that the tip 5a of No. 5 is grasped in such a manner that the tip 5a is projected for a certain length.
And the second horizontal frame 41 approaches the first chuck 23.
By moving it horizontally as if
The heating wire 5 to the heating wire gripping chuck of the rack 23.
Can be supplied. In addition, the chuck for grasping the heating wire of the first chuck 23
Before supplying the heating wire 5 to the first and second chucks 23 and 24,
On the other hand, the core material 4 is supplied. At that time, try to supply
The vertical movement of the upper bracket 22 can be controlled according to the length of the core material 4.
After that, the core material supply and removal device (not shown)
Thus, the core material 4 is supplied to the core material rotating device 11. Therefore,
The chuck for gripping the core material of the first chuck 23 and the second chuck
The core 4 can be gripped with the hook 24, and
After that, the upper bracket 22 is moved upward and the core material 4 is moved to a predetermined position.
I am nervous. In addition, for the chuck for grasping the heating wire of the first chuck 23
When trying to supply the heating wire 5 to the upper and lower sides of the framework 31
By the dynamic control, the heating wire gripping chuck of the first chuck 23 is held.
At a position suitable for supplying the heating wire 5 to the rack.
The guide device 12 is positioned in the vertical direction, and the first
The heating wire of the chuck 23 is heated by the heating wire gripping chuck.
The third chuck 42 that has supplied 5 can contact the first chuck 23.
Grip release state (chuck opened)
State). In addition, it is gripped by the first and second chucks 23 and 24 to tighten them.
The core material 4 is attached to the first horizontal frame 40.
Supported by the core straightening device 50 (see FIG. 3)
This core material straightening device 50 is also installed in the same number as the first chuck 23.
Have been. The core material straightening device 50 is shown in FIG.
As described above, the pair of first free rollers 51a, 51b and
And the free rollers 51a, 51b of these
Supports the core material 4 by the three-point contact roller mechanism of the two free rollers 52
It is configured to be able to. That is, the first free rollers 51a, 51b are
Predetermined in the front-back direction (left-right direction in Fig. 1) of arm 40
The second free rollers 52 are mounted at the intervals and
1 A shaft 53 rotatably mounted on the horizontal frame 40
Is attached to the roller bracket 54 attached to the lower end of the
The swing device 55 linked to the upper end of the shaft 53 moves the shaft 53
1st free by rotating in a given direction and a given angle
Mounted so that it can be pressed against and separated from rollers 51a and 51b
Have been. The rocking device 55 is a bearing mounted on the first horizontal frame 40.
Mounted on a sliding shaft 57 which is slidably supported at 56.
First link 58 and the second link mounted on the upper end of the shaft 53
59 is connected with pin 60 and attached to the first horizontal frame 40
The sliding shaft 57 is moved back and forth by a cylinder (not shown)
Horizontally in the direction (left and right in FIG. 1)
By rotating the shaft 53 in a predetermined direction by a predetermined angle.
It is configured to be able to. A cutter device 61, which will be described later, is also shown in FIG.
However, in this cutter device 61, the wire rod guide device 12
Mounted so that it does not get in the way when moving to the core 4 side
(Details will be described later.) Also, wire rod guide device
12 is mounted a little below the position shown.
Wear, that is, the first free roller 51a of the core material straightening device 50,
Position the top edge of bracket 44 slightly below the bottom edge of 51b.
It is mounted so that it can be placed. Therefore, the wire rod guide device 12 includes the core material straightening device 50 and the cover.
Shown in FIG. 3 undisturbed by the setting device 61.
The bracket 44 from the retracted position on the right side
Move the heating wire 5 so that it approaches the
23 can be supplied. At that time, the second horizontal frame
41 is moved horizontally to the 1st chuck 23 side and the bracket
The 44 is brought closer to the first chuck 23. Then, the core material 4 is supported by the core material straightening device 50.
By controlling the movement of the frame body 31, the core material straightening device 50, etc.
First, the wire guide device 12 is moved to a predetermined upper position.
At that time, the core material straightening device mounted on the first horizontal frame 40
The table 50 is placed with the core 4 supported by a three-point contact roller mechanism.
And move it to the first horizontal frame 40
The cutter device 61 and the like, which will be described later, are also moved together. A double-sided gripping device 13 (see FIG. 4) and a terminal described later
The lead wire straightening device 14 is shown in FIG.
Retreat position on the left side of the core material 4 gripped by the hooks 23, 24
Since it has been moved to the
Device 61 etc. can be moved without being disturbed by both wire gripping devices 13 etc.
can do. Subsequently, the first chuck 23 is electrically heated.
The wire rod guide device 12 that has been able to supply the wire 5 is the core rod straightening device 50.
And the like are moved above the first chuck 23,
Then, the core wire 4 is brought closer. This is done by moving the second horizontal frame 41 to the core wire 4 side.
It will be done. Then, the first and second chucks holding the core wire 4
23, 24 are driven and rotated, and therefore a predetermined number of
As shown in FIG. 7, the heating wire 5 is wound around the core wire 4.
It is possible to form a waste winding 6a, as shown.
Wear. Then, when the discarded winding portion 6a can be formed,
When the wire 23, 24 is stopped and the wire rod guide device 12
Moved to the right retracted position shown in FIG.
You. Next, the double wire gripping device 13 is placed on the left side of the core member 4 at the rear side.
It is moved from the retracted position toward the core material 4. This allows
Hold the core wire 4 and the heating wire 5 with the other wire rod guide device 12, etc.
The two-wire gripping device 13
Is located. The vertical movement control of the double-wire gripping device 13 is
It is performed in a predetermined manner via the driving device 66. In FIG. 4, the double wire gripping device 13 is on the left side of the core material 4.
The figure is shown moving from the retracted position to the core wire 4
In addition, the plan view is shown in FIG.
However, in both figures, the double wire gripping device 13 is
The bracket 63 attached to the frame 62
It is configured by attaching the 64. Note that the third horizontal frame 62 is not shown in FIG.
Attached to a pair of brackets 65
One of the knives 65 is the right guy shown in FIG.
It is slidably engaged with the drail 20 and
One is movably engaged with the left guide rail 21,
Moreover, both brackets 65 are mounted on the right column 17.
Mounted so that they can move up and down together via actuator 66
I have. A guide 67 is attached to each of the brackets 65 (see FIG. 2).
Cylinder (not shown)
Are installed, and these guide rails
The third lateral frame 62 is slidably engaged with 67.
And can be moved horizontally through the cylinder.
It is installed like this. Horizontal movement of the third horizontal frame 62
The movement is in the left-right direction in FIGS.
It is performed in the front-back direction). Therefore, as shown in FIG.
Moved from the retracted position on the left side toward the core wire 4
Inside the opening of the fourth chuck 64 (slits 83 for inserting both wires, which will be described later).
Inside) and the core material 4 held by the first and second chucks 23 and 24.
Position the heating point 5 wound around the core 4
Then, the core material 4 can be
Also, the heating wire 5 can be gripped. In addition, the core material 4 and the heating wire 5 by the chuck claws 75 and 76
Grasping is performed at the position D shown in FIG.
However, the chuck claws 75 and 76 grip the core material 4 and the heating wire 5.
The portion to be formed is provided in an L-shaped vertical cross-sectional shape,
Hold the core material 4 and the heating wire 5 by bringing the parts of the shape close to each other.
I do. Also, in FIGS. 4 and 5, the fourth chuck 64 is a bracket
64 is mounted on bracket 63 so that it can rotate
Multiple V-shaped pulleys 70 and bracket 63 to allow rotation
The gear 71 mounted on the
The ring body 72 and the ring body 72 are positioned above
The upper end surface of the gear 71 through the pins 73 and 74
Chuck jaws 75, 76 mounted as shown,
No, but the direction to bring the chuck claws 75, 76 closer to each other
The spring is mounted so as to urge the
Gears 77,78 mounted on pins 73,74 for meshing
It is composed of The ring body 72 has a V-shaped cross-section at the outer peripheral end 82.
A slit 83 for inserting both lines is formed while being provided,
Further, it is supported in a horizontal state by the V-shaped pulley 70 group. Ma
In addition, the gear 71 has a smaller diameter than the ring body 72.
Both of these also have slits 83 for inserting both lines.
You. In addition, the fourth chuck 64 is provided with a driving device if necessary.
It is rotated by 79, and when rotation is stopped
Locked by the locking device 81 to prevent it from rotating freely
Is done. Furthermore, the chuck swing device 80 allows the chuck jaws to
75 and 76 are rocked. That is, the drive device 79 can rotate to the bracket 63.
Toothed pulley 86 and tooth mounted on shaft 85 mounted like
A car 87 and a toothed pulley 86 (not shown)
It consists of a prime mover that drives a toothed endless belt.
And mount the prime mover via a suitable bracket.
3 Attached to the horizontal frame 62 and the gear 87 to the gear 71
It is in mesh. The prime mover is shown in FIG.
And is attached to the right end of the third horizontal frame 62.
Make a U-turn of the toothed endless belt at the left end.
A toothed pulley is installed for this purpose. Therefore, as shown in FIG.
The state where the core material 4 and the heating wire 5 are gripped by the claws 75 and 76
And rotating the toothed pulley 86 to drive the gear 87
Gear 71, ring body 72 and chuck claws 75, 76
It can be rotated at the beginning. In addition, this rotation is the core
Simultaneous with the driving rotation of the first and second chucks 23 and 24 holding 4
Moreover, it is performed at a constant speed and in the same direction. Also, in this way, the fourth chuck of the double-wire gripping device 13 is
While holding the core material 4 and the heating wire 5 with the hook 64,
Moved to the retracted position as shown in FIG.
The wire guide device 12 is moving upward and
It is moved towards the core 4. At that time, the wire rod guide device 12
The third chuck 42 of the
State), but does not relax the heating wire
While maintaining tension, keep a certain length along the core 4.
The heating wire 5 is moved so as to guide it. Then, its lower position (shown in FIG. 7)
Both wire gripping core material 4 and heating wire 5 at position D)
The fourth chuck 64 of the holding device 13 releases the grip. this
Is a slide of the chuck claw swing device 80 in FIG.
The axis 90 is moved horizontally to the A side in the figure by a predetermined distance.
You. That is, the horizontal movement of the slide shaft 90
The attached hook 91 is the chuck claw of the fourth chuck 64.
75 is contacted with and further pressed, the chuck claw 75 turns counterclockwise.
Is rocked. Then, the gear 78 is rotated counterclockwise and the gear 79 is rotated.
Is rotated in the opposite direction. Therefore, chuck claw
75 and 76 are swung so that they are separated from each other.
Gripping the core 4 and heating wire 5 with the chuck claws 75 and 76
You can cancel your possession. The slide shaft 90 is attached to the third horizontal frame 62.
The bearings 92, 93 are supported so that they can slide.
Both ends of the slide shaft 90 are shown in FIG.
A seal (not shown) attached to the left end of the ram 62
It is connected to the rod of Linder. In addition, the lock device 81 is attached to the bracket 63.
A shaft 96 rotatably supported by bearings 95
Attach the stopper 97 to the shaft, and set the shaft 96
The tip 98 of the stopper 97 is rotated to rotate the gear 87.
Can be locked by engaging with. As a result, when the rotation of the fourth chuck 64 is stopped, both wires are
The entrance slit 83 inserts the core material 4 and the heating wire 5 into both wires.
Suitable for insertion into lit 83 from other unsuitable positions
It can be prevented from being moved to the position. The axis
The rotation of 96 is shown mounted on each end of shaft 96.
Driven by a drive that is not
Is attached to the left end of the third horizontal frame 62 in FIG.
Have been. Then, subsequently, the core material 4 and the
The two-wire gripping device 13 that has released the grip of the heating wire 5 and the heating wire 5 is the drive device.
Moved up via 66. In addition, this movement is the fourth
Move chuck 64 to the E position shown in FIG.
It is done to move. In addition, prior to that, wire rod
The id device 12 is moved to the position E by the double wire gripping device 13.
Move to the upper position and approach the core material 4.
It is moved to the position where it was opened. Next, at the position E, the fourth grip of the two-wire gripping device 13 is
The backpack 64 holds the core material 4 and the heating wire 5. This is
The ride shaft 90 moves to the side B shown in FIG.
It is performed by moving a predetermined distance horizontally. That is,
The hook 91 attached to this
Separated from the chuck jaws 75 and thus separated from each other
The chuck jaws 75 and 76 that had been removed were brought close to each other, and the core material 4 and the heating wire 5 were
To grip. Then, the fourth chuck 64 grips the core material 4 and the heating wire 5.
Then, the first and second chucks 23 and 24 are driven and rotated, and
The 4 chuck 64 is also driven and rotated. This allows the wick
The heating wire 5 is wound around the material 4 at a predetermined pitch to generate heat.
Can be formed with the winding portion 6a
A linear terminal lead portion 1a is formed between the heating coil portions 2a.
be able to. When forming the heating coil portion 2a, the wire
The material guide device 12 is moved upward at a predetermined speed, and
If the heating coil 2a can be formed, it will be faster than that.
Moved upward. Therefore, the intermediate lead portion 7a is formed.
be able to. Thereafter, the heating coil portion 2b and the intermediate lead 2a are subjected to the same steps.
It is possible to form the cable portion 7b and the like, and
When the ruled portion 2n can be formed, the first and second chucks 23 and 24 and the fourth chuck
The driving rotation of the backpack 64 is stopped. In addition, wire guide equipment
The table 12 is shown in FIG. 3 from the position close to the core material 4.
Is moved to the retracted position. Then, the core material 4 and the heating wire 5 are grasped at the position E.
The fourth chuck 64 of the double wire gripping device 13 has the core member 4 and the heating wire.
5 is released, and then moved upward to the F position.
Is moved to where the core material 4 and the heating wire 5 are gripped again.
You. One of them is shown in FIG.
Wire guide device being moved to the retracted position
12 is moved upwards and is moved again toward the core 4.
You. At that time, the third chuck 42 of the wire rod guide device 12 is
It is kept in the hold release state (with the chuck open)
However, keep the heating wire 5 taut so that it does not relax.
While guiding the heating wire 5 of a predetermined length along the core material 4,
It is moved so as to lick. Then, the wire rod guide device 12 is moved to a predetermined position.
And at the lower position, that is, the position of F,
The fourth chuck 64 of the double-wire gripping device 13 that holds the hot wire 5
Releases the grip, and is subsequently moved upward to G
To the position where the core material 4 and the heating wire 5 are again
Hold. Then, the first and second chucks 23 and 24 and the fourth chuck 64 are replaced.
And driven to rotate, and moved upward from both wire gripping device 13.
The heating wire 5 from the wire rod guide device 12 is wound and discarded.
The winding part 6b can be formed by
A linear terminal lead portion 1b is formed between the portion 2n and the discarded winding portion 6b.
can do. In addition, the formation of the discarded winding portions 6a, 6b,
While moving the wire rod guide device 12 upward at a predetermined speed
May go. This completes the winding of the heating wire 5 around the core material 4.
However, subsequently, the wire guide device 12 is brought closer to the core 4.
From the retracted position to the retracted position shown in FIG.
And then the cutter assembly shown in FIG.
The heating wire 5 is cut by the device 61. In the figure, the cutter device 61 is the first horizontal frame 40.
To the guide rail 100 installed on the
And a first slider 101a engaged to obtain
The blade 10 attached to the slider 101a via the presser foot 102a
3a and the connecting arm attached to the upper part of the first slider 101a
Um 104 and the back side of the first slider 101a.
Can slide back and forth on the guide rail 100
And the second slider 101b engaged with the second slider 101b.
A blade 103b attached to the dar 101b via a holding tool 102b,
Connection arm 105 mounted on the upper part of the second slider 101b
Etc., each of the connecting arms 104, 105 is not shown.
Close to or away from each other via a cylinder
I wear it so that I can. One of the cylinders is
1 not shown on the right side of the horizontal frame
It is attached to the right bracket and the other is attached to the left end.
Not mounted Not shown Bracket mounted
I have. In addition, normally, the first slider 101a and the first slider 101a
The two sliders 101b are arranged in the longitudinal direction of the first horizontal frame (first
A predetermined interval in the front-back direction in Fig. 3, that is, between the two
The bracket 44 of the wire rod guide unit 12
It is kept at an interval that allows Further, the wire rod guide device 12 is shown in FIG.
It is placed a little below the position,
Then, the first free rollers 51a and 51b of the core material straightening device 50 and the continuous
Place the bracket 44 slightly below the bottom edge of the connecting arm 104.
It is mounted so that the upper end is located. The position where the wire rod guide device 12 approaches the core wire 4
To the retracted position shown in FIG.
Then, the third chuck 42 is closed and the heating wire 5 is gripped.
At the same time, the first slider 101a and the second slider 101b
The heating wires 5 are cut by the blades 103a and 103b as they are brought close to each other.
Disconnected, then the first slider 101a and the second slider
101b is moved away from each other and moved to the original position. Then, the rotation of the first and second chucks 23 and 24, which have been stopped, and
The fourth chuck 64 is driven and rotated, and thereby rotated.
The rear end of the heating wire 5 wrapped around the core material 4
-While being pressed against the core material 4 by the roller 106, the core material
It is wrapped around 4. As a result, the discarded winding parts on both ends
The electric heating coil as the final part that was cut and removed (see Fig. 6
Carp before getting the electric heating coil) shown in
A semi-finished coil can be formed.
The free roller 106 includes the first slider 101a and the second slider 101a.
Does not interfere with slider 101b approaching each other
The bra attached to the lower end of the first slider 101a
It is attached to the ket 107. Then, the terminal lead straightening device 14
The terminal lead portions 1a and 1b of the product coil are straightened. this
Has been moved to the position G shown in FIG.
The fourth chuck 64 of the wire holding device 13 is
When the grip of the heating wire 5 is released, it is shown in FIG.
Was moved to the retracted position on the left side of the core material 4
It is moved toward the core material 4 of the terminal lead correction device 14.
Will be That is, the terminal lead correction device 14 is shown in FIGS.
And a cylinder mounted on the lower surface of the third horizontal frame 62.
Bracket 110 and link mechanism 111, and cylinder bracket
The first cylinder 112 mounted on the unit 110 and the third horizontal frame
Guides mounted on brackets 63 mounted on arm 62
And roller bracket 115 with rail 114 attached
And a pair of flaps attached to one end of the roller bracket 115.
On the lower surface of the roller rollers 115a and 116b and the roller bracket 115.
Attached connecting bracket 117 and second cylinder 118
And a second free roller 119 attached to the link mechanism 111.
Equipped with the first cylinder 112, the roller bracket 1
Horizontally move 15 from the retracted position shown to the core 4 side.
Bring the integral free rollers 116a and 116b into contact with the core member 4
At the same time, the second cylinder 118 drives the link mechanism 111.
Move to rock the second free roller 119 to move the first free roller.
Pressure contact with the rollers 11a and 116b to make such three-point contact.
The roller mechanism is configured to support the core wire 4 and the heating wire 5.
Has been established. The rail 114 of the roller bracket 115 is attached to the guide 11
Engage so that it can slide against 3 and cannot fall.
Of the bracket 63 and the third horizontal frame 62.
A guide groove 120 for guiding the rail 114 is provided at the lower end.
The first cylinder 112 has a histone lock.
The tip of the cable is fixed to the connecting bracket 117 and
The pair of first free rollers 116a, 116b are shown in FIG.
And are mounted at predetermined intervals in the front-rear direction. Then, the core material 4 and electric heat are generated by the three-point contact roller mechanism.
When the wire 5 can be supported, the first and second chucks 23 and 24 are driven and rotated.
In the meantime, the semi-finished product wound around the core material 4
Distortion and bending tendency of the terminal lead 1b of the
To be corrected. During straightening, the double-sided gripping device 13 is
The core material 4 and the heating wire 5 in the slit 83 for inserting both wires of the rack 64.
But keep their grips released.
Is dripping Also, correct the terminal lead 1b of such semi-finished product coil.
When finished, the drive rotation of the first and second chucks 23 and 24 is stopped,
Next, by the cylinder 118 and the link mechanism 111,
Two free rollers 119 as shown in FIG.
So that it can be separated from the first free rollers 11a and 116b.
Swings to the original retracted position and pulls on it.
After that, the 1st cylinder 112 makes the 1st free low
As shown in FIG.
The material 4 is moved to the retracted position on the left side. Then, the third horizontal frame 62 is moved downward by the drive device 66.
Both lines moved to the E position shown in FIG.
The gripping device 13 is moved. That is, by this, the core material
4 Terminal lead section moved to the retracted position on the left side of 4
The positive device 14 is an end of the semi-finished coil wound around the core material 4.
It is located at the level of the child lead portion 1a. Therefore, the above edge
The terminal lead part is subjected to the same steps as the correction of the child lead part 1b.
Semi-finished carp wrapped around the core 4 by the straightening device 14.
The terminal lead portion 1a of the cable can be straightened. Then, after that, the third horizontal frame 62 is left on the fourth side.
To the left, so that the two-wire gripping device 13 is located to the left of the core material 4.
Side retreat position and terminal lead straightening device
14 are retreated further together. Therefore, in this state
The wire rod guide device 12 and the core material straightening device 50,
The holding device 13 can move up and down without being disturbed. In this way, following the forming of the semi-finished coil, discarding
Terminal that connects the winding parts 6a, 6b to the heating coil parts 2a, 2n
Terminal lead straightening device 14 for straightening the lead parts 1a, 1b
I am wearing it. Therefore, it is shown in FIG.
The terminal leads 1a and 1b are kept in a straight line.
The electric heating coil 3 as a product can always be obtained. In addition, the semi-finished product coil
With the removing device, the first and second chucks 23, 24 together with the core material 4
From the core 4, and then both ends.
The discarded winding portions 6a and 6b are cut and removed. This is a worker
Alternatively, it is performed by an appropriate device. Similarly, the semi-finished product coil can be formed one after another.
However, this coil forming device can be used for multiple semi-finished products at one time.
It is so-called multi-series type that can be molded
I have.

【The invention's effect】

As described above, according to the present invention, it is possible to form a semi-finished product coil which can always obtain an electrothermal coil as a final product in which the terminal lead portions at both ends are kept in a straight line state. The work of connecting the coils can be facilitated and automation can be achieved. In addition, it is possible to form a semi-finished product coil having various overall lengths and to reduce the size of the device. Further, the movement control of the chuck or the like for holding the core wire can be facilitated, and the semi-finished product coil can be favorably formed.

[Brief description of the drawings]

FIG. 1 is a front view of a coil forming device.

FIG. 2 is a view taken along the line ZZ in FIG.

FIG. 3 is an enlarged view of a part of FIG. 2, showing a mounting manner of a wire rod guide device and the like.

FIG. 4 is an enlarged view of a second part and is a view showing a mounting manner of the double-wire gripping device and the terminal lead correction device.

FIG. 5 is a plan view of FIG.

FIG. 6 is a diagram showing an electric heating coil as a final product.

FIG. 7 is a diagram showing a mode of forming a semi-finished product coil in which a heating wire is wound around a core material and discard winding parts are formed at both ends.

FIG. 8 is a diagram showing a conventional electric heating coil.

[Explanation of symbols]

 1a, 1b ...... Terminal lead part 2a to 2n ...... Heating coil part 3 ...... Electrical coil 4 ...... Core material 5 …… Heating wire 6a, 6b …… Discarded winding part 7a, 7b …… Intermediate lead part 10 …… Device frame 11 …… Rolling device 12 …… Wire guide device 13 …… Both wire gripping device 14 …… Terminal lead straightening device 15 …… Wire feed device 23 …… First chuck 24 …… Second chuck 42… … Third chuck 64 …… Fourth chuck 75,76 …… Chuck claws 116a, 116b …… First free roller 119 …… Second free roller

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshitada Kinukawa, 1194 Sado, Bessho-cho, Himeji-shi, Hyogo Ushio Electric Co., Ltd. In-house Examiner Hiroshi Ogawa (56) Reference JP-A-4-98759 (JP, A) JP-A-61-114460 (JP, A) SAI-KAI 58-38963 (JP, U)

Claims (6)

(57) [Claims] 1. A core material rotating device in which a first chuck for gripping a tip of a heating wire and one end of a core material and a second chuck for gripping the other end of the core material are mounted so as to be driven and rotated, and a wire material. The heating wire can be gripped by the third chuck and supplied to the first chuck so that the tip of the heating wire from the supply device is projected, and the heating wire supplied to and gripped by the first chuck is A wire rod guide device that is movably mounted so as to be guided along the core member to the second chuck side in a state where the third chuck is opened, and grips the core member and the heating wire. Double wire gripping device movably mounted so as to move a fourth chuck mounted so as to rotate together with the first and second chucks to a position where the heating wire is wound around the core material. With and
In the coil forming device configured so that the heating wire is wound around different positions of the core material one after another to form a semi-finished coil in which a heating coil portion is formed between the waste winding portions at both ends. A coil forming device, comprising: a terminal lead straightening device for straightening a terminal lead portion connecting a heat generating coil portion to a heat generating coil portion, following the shaping of the semi-finished coil. 2. The coil according to claim 1, wherein the core material rotating device is provided with first and second chucks so that the other chuck can be moved toward and away from the other chuck. Molding equipment. 3. The coil forming apparatus according to claim 2, wherein the second chuck is mounted so as to be able to move toward and away from the first chuck mounted so as not to move. 4. The coil forming apparatus according to claim 3, wherein the first and second chucks are mounted vertically. 5. The coil forming apparatus according to claim 4, wherein a second chuck is mounted above the first chuck. 6. A terminal lead straightening device comprises a pair of terminal lead portions of a semi-finished product coil wound around a core material gripped and rotated by first and second chucks, together with the core material. First
The three-point contact roller mechanism of a free roller and a second free roller that is pressed against the first free roller is supported so that it can be supported.
The coil forming device as described in 4 or 5.