JP5780538B1 - Winding device - Google Patents

Abstract

An object of the present invention is to obtain a device for winding a non-circular coil such as a rectangular coil at a high speed with a simple configuration. A winding device according to the present invention is configured to bend a wire rod feeding means for feeding and gripping a coil wire rod, a bending guide provided in a part of the wire rod feeding portion, and a coil wire rod abutting against the bending guide. A bending means, and the bending means has a rotation center outside the coil at a position after the bending and repeats rotation in one direction, and the rotating bending means is bent by sending the coil wire by the wire supply means. The non-circular coil is manufactured by contacting the guide, and the non-circular coil can be manufactured at high speed by repeating the rotation without moving the bending means in the coil stacking direction. [Selection] Figure 1

Description

  The present invention relates to a winding device for a non-circular coil.

  In recent years, in order to reduce the size and increase the performance of a rotating machine, it has been practiced to use a wire having a rectangular cross section and to wind it into a non-circular shape close to a rectangle by a winding method called an edgewise method. The edgewise method has an advantage that it can be thinned by winding a rectangular wire in the vertical direction, but has a disadvantage that the winding process is not easy.

Patent Document 1 shows a manufacturing method in which a rectangular wire is formed into a rectangular coil. A rotating table is rotated around a roller-shaped member, and is bent by pressing along a bending guide. Thereafter, the turntable is rotated backward to return the bending guide to the original position, the coil is pushed out for a predetermined length, and further bent along the bending guide again. The rectangular coil is manufactured by repeating the above steps.
Further, Patent Document 2 discloses an edgewise winding device using a plurality of bending jigs formed so as to be rotatable around a sandwiching shaft while maintaining an equal interval.

JP 2006-288025 A JP 2009-135222 A

  In the winding apparatus of Patent Document 1, it is difficult to wind at a high speed because the turntable must be reversely rotated after the wire is bent. Further, in the winding device of Patent Document 2, every time a bending jig is bent, the winding device has to be moved back and forth in the coil stacking direction, resulting in a complicated configuration.

  The present invention solves the above-described problems, and an object thereof is to obtain an apparatus for winding a rectangular coil at a high speed with a simple configuration.

The winding device according to the present invention is a winding device for a non-circular coil having a bending portion and a non-bending portion, and a wire rod supplying means for feeding and gripping the coil wire rod, and a bending portion provided in a part of the wire rod supplying device. A guide and a bending means for bending the coil wire in contact with the bending guide, and the bending means has a center of rotation outside the coil at a position after the coil wire is bent and repeats rotation in one direction to supply the wire The coil wire is delivered by the means, and the rotating bending means is brought into contact with the bending guide to produce a non-circular coil.
More specifically, the configuration is such that the outer periphery of the coil at the position after the coil wire is bent and the locus of the bending means by the rotation mechanism do not intersect.
Further, the coils are laminated in the direction opposite to the direction in which the rotation mechanism of the winding device according to the present invention is installed.
Further, in the winding device according to the present invention, after the bending means abuts on the coil wire and bends the coil wire, the wire supply means does not return the coil wire until it returns to the bending position of the coil wire. The coil wire is bent continuously by sending a predetermined length from the bending position.

Moreover, the bending means of the winding device according to the present invention performs the bending process by reducing or stopping the rotation speed when the coil wire is in contact.
Specific examples of the above-mentioned configuration, bending and installation position the position detecting means bending for detecting the bending means the coil wire to the means to the position before contact with the bending when the bending means has reached the position of the position detecting means The means is decelerated.
Further, a position changing means for changing the center position of rotation of the bending means of the winding device according to the present invention is provided, and the bending angle is adjusted.
Specifically, the position changing means is operated while the coil wire is bent by the bending means, and the coil wire is bent further deeply.

  In addition, the wire rod supply means of the winding device according to the present invention is provided at a drive mechanism for sandwiching and feeding the coil wire rod, a wire rod guide for guiding the coil wire rod fed from the drive mechanism, and an end portion of the wire rod guide. A bending guide is provided.

Further, the bending means of the winding device according to the present invention includes a plurality of bending pressing bodies that contact the coil wire and bend the coil wire, and sequentially contact the plurality of bending pressing bodies to the coil wire. Are bent, and a plurality of bending processes are performed by one rotation of the bending means.
Specifically, the plurality of bending pressing bodies differ in at least one of the size and the radius of rotation, and change the bending angle in accordance with the coil shape.
Further, in the winding device according to the present invention, the bending means includes a turning radius changing means, and the bending radius is changed to perform an optimum bending process according to the coil size.
In addition, the winding device according to the present invention can switch the rotation direction of the rotation mechanism, and can manufacture coils having different winding rotation directions by switching the rotation direction of the rotation mechanism.

According to the winding device of the present invention, the bending device is provided with a bending means for bending by bringing the coil wire into contact with the bending guide, and the bending means has a rotation center on the outer side of the coil formed by winding the coil wire, and is unidirectional. since a structure that repeats a rotation to be produced a non-circular coil with a simple configuration. In addition, it is not necessary to reversely rotate the bending means or move the bending means in the coil stacking direction, and non-circular coils can be wound at a high speed, resulting in an increase in production per hour and reduction in processing costs. Can do.

The perspective view which shows the winding apparatus which concerns on Example 1 of this invention. The perspective view which shows the coil manufacture state of the winding apparatus which concerns on Example 1 of this invention. The schematic diagram which shows the 1st step operation | movement of the winding apparatus which concerns on Example 1 of this invention. The schematic diagram which shows the 2nd step operation | movement of the winding apparatus which concerns on Example 1 of this invention. The schematic diagram which shows the 3rd step operation | movement of the winding apparatus which concerns on Example 1 of this invention. The schematic diagram which shows the 4th step operation | movement of the winding apparatus which concerns on Example 1 of this invention. The schematic diagram which shows the 5th step operation | movement of the winding apparatus which concerns on Example 1 of this invention. The schematic diagram which shows the 6th step operation | movement of the winding apparatus which concerns on Example 1 of this invention. The schematic diagram which shows the 7th step operation | movement of the winding apparatus which concerns on Example 1 of this invention. The schematic diagram which shows the 8th step operation | movement of the winding apparatus which concerns on Example 1 of this invention. The graph showing the speed of the bending means of the winding apparatus which concerns on Example 1 of this invention. The perspective view which shows the winding apparatus which concerns on Example 2 of this invention. The perspective view which shows the winding apparatus which concerns on Example 2 of this invention. The perspective view which shows the winding apparatus which concerns on Example 3 of this invention. The schematic diagram which shows operation | movement of the winding apparatus which concerns on Example 3 of this invention. The schematic diagram which shows operation | movement of the winding apparatus which concerns on Example 4 of this invention. The schematic diagram which shows operation | movement of the winding apparatus which concerns on Example 5 of this invention. The figure which shows the shape of the coil manufactured with the winding apparatus which concerns on Example 5 of this invention. The schematic diagram which shows operation | movement of the winding apparatus which concerns on Example 6 of this invention. The schematic diagram which shows operation | movement of the winding apparatus which concerns on Example 7 of this invention. The schematic diagram which shows operation | movement of the winding apparatus which concerns on Example 7 of this invention. The schematic diagram which shows operation | movement of the winding apparatus which concerns on Example 8 of this invention. The figure which shows the structure of the bending position detection means of the winding apparatus which concerns on Example 8 of this invention. The graph showing the speed of the bending means of the winding apparatus which concerns on Example 8 of this invention. The perspective view which shows the structure of the rotation radius change means of the winding apparatus which concerns on Example 9 of this invention. Sectional drawing of the rotation radius change means of the winding apparatus which concerns on Example 9 of this invention. The schematic diagram which shows operation | movement of the winding apparatus which concerns on Example 9 of this invention. The schematic diagram which shows operation | movement of the winding apparatus which concerns on Example 9 of this invention. The schematic diagram which shows operation | movement of the winding apparatus which concerns on Example 10 of this invention. The schematic diagram which shows operation | movement of the winding apparatus which concerns on Example 10 of this invention.

  Embodiments of the present invention will be described below with reference to the drawings, taking each of Examples 1 to 10 as examples. The contents of the present invention are not limited to these embodiments.

A first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a winding apparatus A according to the first embodiment. The wire supply means B is for sending or stopping and holding the coil wire 2 having a flat cross section, and for sending the coil wire 2 wound around a bobbin (not shown) in the direction of arrow J in the figure. It is. The wire supply means B is provided with two sets of drive mechanisms in which a motor and a drive roller are combined. That is, a first drive mechanism that sandwiches the coil wire 2 between the first motor 3 and the first drive roller 4 that transmits the rotation of the first motor 3 and the first drive roller 4 and the first passive roller 5 that passively rotates. And a second drive mechanism that sandwiches the coil wire 2 by the second motor 6, the second drive roller 7, and the second passive roller 8 that passively rotates, and the drive roller and the passive roller are respectively indicated by arrows K 1. The coil wire 2 is sent out by rotating in the directions of arrows K2, K3, and K4. The coil wire 2 is first fed by the first drive roller 4 and the first passive roller 5, guided by the wire guide 9a, and further driven by the second drive roller 7 and the second passive roller 8 to reach the wire guide 9b. A bending guide 9ba is provided at the end of the wire guide 9b as described later. Further, the coil wire 2 is gripped by stopping the rotation of each motor.
Each motor can be provided with a speed reducer to make the rotation speed appropriate, and has a control device (not shown) for starting and stopping the rotation of the motor.
Instead of the wire supply means by the combination of the first motor 3, the first drive roller 4, and the first passive roller, or the combination of the second motor 6, the second drive roller 7, and the second passive roller 8, the motor A linear motion conversion mechanism using a screw and a screw may be used.

  The bending means C is provided with a bending pressing body 13 via a lever 12 on a rotating shaft 11 of a bending motor 10 which is a rotating mechanism, and rotates (revolves) in an arrow L direction (clockwise). In FIG. The coil wire 2 is bent upward (counterclockwise) with the bending guide 9ba, which will be described later, in contact with the fulcrum. The distal end of the bending pressing body 13 is circular, and is bent while smoothly rotating on the coil wire 2 at the time of bending. In addition, although the bending press body 13 shows the structure which bends the coil wire 2 while rotating like a roller which is free to rotate with respect to the lever 12, the bending press body 1 is fixed to the lever 12 and is coiled while sliding. The structure which bends the wire 2 may be sufficient.

  The bending means C rotates several times to bend the coil wire 2 to form the coil 14 as shown in FIG. As shown in FIG. 2, the coil 14 is laminated in the opposite direction to the bending motor 10 installation direction. When the center line of the coil at the position where the bending of the coil wire 2 by the bending pressing body 13 of the bending means C is completed is Z1, and the center line of the rotating shaft 11 of the bending pressing body 12 of the bending means C is Z2, the center line Z2 is located away from the center line Z1 of the coil 14, and the coil wire 2 is positioned outside the outer peripheral surface of the coil 14 at a position after bending. The bending motor 10 may drive the rotary shaft 11 from a position separated by driving a belt or the like.

  The winding process of the winding device according to the present invention is shown in FIGS. 3 to 10 are views from the XX direction shown in FIG. FIG. 3 shows step 1 and shows a state before the coil wire 2 starts winding, the rotating shaft 11 and the bending pressing body 13 are stopped, and the coil wire 2 is moved in the direction of arrow J. It is fed from the wire guide 9b. A circular two-dot chain line indicates a rotation locus of the bending pressing body 13. When the coil wire 2 is further sent and reaches a predetermined length as shown in Step 2 of FIG. 4, the wire supply means B stops rotating and grips the coil wire 2. The feeding length of the coil wire 2 is controlled by the number of rotations and the rotation angle of the motor of the wire supply means B. When the coil wire 2 is fed by a predetermined length and gripped, the bending pressing body 13 rotating in the direction of the arrow L approaches the coil wire 2 and the bending pressing body 13 comes into contact with the coil wire 2, and the coil wire 2 Bending is started around the curved bending guide 9ba at the end of the wire guide 9b.

FIG. 5 shows Step 3 and shows a state in which the coil wire 2 is bent at approximately 90 degrees through the curved portion 2a. In this state, the bending pressing body 13 is rotated clockwise and moved to the most leftmost position, and the coil wire 2 is rotated about 90 degrees counterclockwise or 90 degrees in consideration of the effect of springback in some cases. Bend deeply into the following acute angles. In step 4 of FIG. 6, the bending pressing body 13 further rotates, bends the coil wire 2, and gradually moves away from the coil wire 2. 4 to 6, the coil wire 2 does not move and maintains its position. However, when the bending pressing body 13 moves away from the coil wire 2, the supply of the coil wire 2 is thereafter performed by the wire supply means B. Is started. At this time, the bending pressing body 13 also continues to rotate, and the bending pressing body 13 moves faster, so that the linear portion 2b of the coil wire 2 contacts the bending pressing body 13 as shown in FIG. There is no. In addition, the timing which sends the coil wire 2 may be made after the bending press body 13 leaves | separates a considerable distance, if it is taken care of safety. In order to obtain more accurate timing related to the delivery of the coil wire 2, a sensor for detecting the rotational position of the bending pressing body may be provided.
Next, when the coil wire 2 is sent out by the length of one side of the rectangular coil, the wire supply means B stops sending and holding the coil wire 2 as shown in step 5 of FIG. The bending pressing body 13 continues to rotate and approaches the coil wire 2. At this time, since the driving load applied to the bending pressing body 13 is small, the speed can be increased to save time. In particular, useless time can be eliminated when one side of the rectangular shape is short.

FIG. 8 shows step 6 in which the bending pressing body 13 abuts on the coil wire 2 and bending is started around the end 9ba of the bending guide 9b, and the second bending is completed in step 7 of FIG. To do. At this time, since a relatively large load is applied to the bending pressing body 13, bending is performed by decreasing the rotational speed and increasing the motor torque. Further, by the same operation, the coil wire 2 is fed by the length of the other side of the rectangular coil, and the third bending process is performed in step 8 of FIG. By repeating the above operation, rectangular coils 14 stacked as shown in FIG. 2 are manufactured.
The coil wire 2 is bent by the bending pressing body 13 of the bending means C, and the center Z1 of the coil and the center Z2 of the rotating shaft 11 when the coil 14 is formed as shown in FIG. Z2 is located further outside the outer periphery of the coil 14. Further, the rotation locus W of the bending pressing body 13 does not intersect the outer periphery of the coil 14 at this position.

The bending pressing body 13 and the coil wire 2 are not in contact with each other except during bending as shown in FIGS. 3 to 10, and the bending pressing body 13 needs to be rotated in the reverse direction or moved in the coil stacking direction. You can see that there is no. Further, when the bending pressing body 13 is started, the bending motor 10 can be controlled easily and can be rotated at high speed because the bending motor 10 can be continuously rotated in one direction without moving the central axis in the axial direction. is there. As the bending motor 10, an induction motor, a synchronous motor, a stepping motor or the like generally called a servo motor is used, and if a position detector that detects the rotational position of the bending pressing body 13 is provided, higher-precision control is possible. Become.
Moreover, although the example which rotates the bending press body 13 circularly in the present Example was shown, you may provide by a circular orbit which has a link mechanism and has an elliptical orbit. As an alternative to the bending motor 10, it is possible to provide a mechanism for converting linear motion into circular motion in order to obtain a circular rotational motion.

  In the present embodiment, a rectangular laminated coil that is close to a square made up of four bent portions and a straight non-bent portion connecting between the bent portions is shown. However, even when there is a dimensional difference between the long side and the short side, the wire rod It can be applied by adjusting the feed amount of the supply means B. Further, not only a quadrangular laminated coil composed of four bent portions and a linear portion communicating between them, but also other polygonal coils can be applied.

An example of the rotation speed control of the bending pressing body 13 is shown by a graph in FIG. The horizontal axis indicates the rotational position of the bending pressing body 13, and the vertical axis indicates the rotational speed of the bending pressing body 13. The bending pressing body 13 is stationary at the initial position S1 point of Step 1 in FIG. 3 and the coil wire 2 is supplied, and the bending pressing body 13 starts rotating from the S2 point (Step 2 in FIG. 4). Since the load is large due to the bending, the rotation speed is decreased (rotation speed R2) and the driving torque of the bending motor 10 is increased to perform bending. Point S3 is the state of step 3 in FIG. 5 where the bending process is completed, the load on the bending motor 10 is reduced, and the rotational speed is accelerated to R3. Passes S4 point (step 4 in FIG. 6) and S5 point (step 5 in FIG. 7) at high speed, reaches S6 point (step 6 in FIG. 8) while decelerating, contacts the coil wire 2 and is bent for the second time. Is performed at a low speed, and the bending process is completed at the point S7 (step 7 in FIG. 9).
By setting the rotation speed in accordance with the load required for bending in this way, high-speed rotation is possible and the production amount per hour can be increased.

12 to 13 are perspective views showing the configuration of the second embodiment of the present invention. The difference from the first embodiment is that the direction of the entire winding device A is changed. As shown in FIG. 12, the coil 14 is rotated and bent horizontally with respect to gravity, and the coil 14 is laminated in the direction of gravity. When the coil 14 is laminated in multiple layers, there is an effect that vibration due to gravity of the coil 14 is reduced.
As shown in FIG. 13A, there is a coil support 20 that supports the coil 14 that is bent, and an inclined guide 20 a is provided on a part of the coil support 20. As shown in FIG. 13B, the coil 14 is bent and guided on the inclined guide 20 a and laminated on the coil support 20. At this time, the bending motor 10 is installed in a direction opposite to the direction in which the coils 14 are laminated (downward in FIG. 13), and prevents the bending motor 10 from being contacted by the lamination of the coils 14.

FIG. 14 is a perspective view showing the configuration of the third embodiment of the present invention. The difference from the first embodiment is that a position changing means D in the horizontal direction is provided. The position changing means D comprises a moving motor 15, a linear conversion mechanism 16 and a drive shaft 17, and converts the rotational motion of the mobile motor 15 into a linear motion by a linear conversion mechanism 16 constituted by a screw mechanism. Is driven in the direction indicated by arrow N. The drive shaft 17 can be moved in contact with the table 18 and the bending means C fixed to the table 18 can be moved. The other position changing means E is moved at right angles to the moving direction of the position changing means D, and can be moved in two dimensions by two position changing means, and a moving device (not shown) that moves vertically. Can be used to adjust in three dimensions.
The bending angle can be adjusted by the movement of the bending means C. By adjusting the position of the bending means C, for example, the bending angle can be adjusted by changing the position of the bending pressing body 13 in the state of step 3 in FIG. In FIG. 15, the table 18 is moved to the bending guide 9b side by the position changing means D, the bending amount is increased and the table 18 is bent at an acute angle. After the bending pressing body 13 bends the coil wire 2 at a substantially right angle, the position changing means D is operated to move the bending pressing body 13 and bend it at an acute angle as shown in the coil wire 2c.

FIG. 16 shows a schematic diagram of the operation of the fourth embodiment of the present invention. The difference from the first embodiment is that a plurality of bending pressing bodies are provided. That is, apart from the bending pressing body 13 attached to the rotating shaft 11 via the lever 12, the bending pressing body 13a is provided symmetrically with respect to the rotating shaft 11 via the lever 12a. By providing two bending pressing bodies, it is possible to bend twice by one rotation of the rotating shaft 11 and to reduce the coil manufacturing time even if the rotating shaft is at a low speed.
In the present embodiment, the case where two bending pressing bodies are used is shown, but three or more bending pressing bodies are also possible.

  FIG. 17 shows a schematic diagram of the operation of the fifth embodiment of the present invention. The difference from the fourth embodiment is that two bending pressing bodies 13 and 13b having different sizes are provided. When the ratio of the long side 14a and the short side 14b is greatly different in a rectangular coil as shown in FIG. 18, the amount of springback generated during bending is different, and the coil shape may be distorted. . Depending on the degree of the spring back amount, a bending pressing body 13b having a size different from that of the bending pressing body 13 can be provided to reduce the influence of pulling back, and an accurate dimension can be obtained even in a rectangular coil having different long sides and short sides. The coil can be manufactured. The position of the bending pressing body 13b in the rotational direction is 180 degrees with respect to the bending pressing body 13 in the embodiment, but can be changed to an appropriate position depending on the shape of the rectangular coil.

FIG. 19 shows a schematic diagram of the operation of the sixth embodiment of the present invention. The difference from the fifth embodiment is that two bending pressing bodies having different rotation radii are provided. In other words, the bending pressing body 13 c is attached to the bending pressing body 13 attached to the lever 12 and the lever 12 b having a longer radius than the lever 12. The bending pressing body 13 bends the coil wire 2 and then the bending pressing body 13c bends further deeply so that the dimensional accuracy can be maintained even when the spring back is large.
The position of the bending pressing body 13c in the rotation direction is 180 degrees with respect to the bending pressing body 13 in the embodiment, but can be changed depending on the shape of the rectangular coil.

  20 and 21 are schematic diagrams showing the operation of the seventh embodiment of the present invention. In FIG. 20, apart from the bending pressing body 13, the bending pressing body 13d is provided on a lever 12d having a small rotation radius. In FIG. 20, the bending pressing body 13d bends the coil wire 2 at a predetermined angle, and then the bending pressing body 13 bends the coil wire 2 by 90 degrees as shown in FIG. By performing the bending work in two stages, distortion generated during bending can be reduced, and processing can be performed with high accuracy.

  An eighth embodiment of the present invention is shown in FIGS. FIG. 22 is a schematic diagram showing the operation, FIG. 23 is a block diagram of the bending position detecting means, and FIG. 24 is a graph showing the rotational speed of the bending pressing body 13. In FIG. 22, the bending motor 10 increases the rotational speed from the position Sa where the bending pressing body 13 has finished bending the coil wire 2, and when reaching the position Sb, the coil wire 2 is sent from the position U 1 to the position U 2. It is done. When the bending pressing body 13 further rotates and reaches the position Sc before the bending pressing body 13 bends the coil wire 2, the bending pressing body 13 is detected by the bending position detecting means 19 as shown in FIG. The When the bending pressing body 13 reaches the position Sc, the bending motor 10 decelerates and reaches the position Sd where the bending pressing body 13 contacts the coil wire 2 in a state where the rotational speed of the bending pressing body 13 is reduced. The bending pressing body 13 touches softly without damaging the surface of the coil wire 2, and thereafter bends the coil wire 2 at a low speed. At this time, since the bending motor 10 has a low rotation, the generated torque is large, and the bending motor 10 can rotate with a sufficient margin during bending with a large load.

  23 includes a light emitting body 19a and a light receiving body 19b with a bending pressing body 13 provided on the lever 12 interposed therebetween, and light emitted from the light emitting body 19a is blocked by the bending pressing body 13 and received by the light receiving body. It is determined that light does not reach 19b and the bending pressing body 13 passes. The bending position detection means 19 may be a reflection type optical sensor, a metal proximity sensor, or the like in addition to the transmission type optical sensor as shown in the embodiment.

  Next, changes in the rotational speed of the bending pressing body 13 shown in FIG. 24 will be described. The rotational position Sa1 indicates the state of the rotational position Sa in FIG. 22, and the rotational speed is the low speed R4. Since the coil wire 2 has already been bent at this position, the rotational speed is increased to R5. The bending pressing body 13 passes through the position of Sb in FIG. 22 (Sb1 in FIG. 24) at high speed, and continues to rotate at a high speed even after the coil wire 2 is sent and reaches the position of Sc as described above. The position is detected by the means 19, and the rotation speed is decelerated from R5 (rotation position Sc1) to R4 (rotation position Sd). Thereafter, this operation is repeated to stack the nonlinear coils. The positions Sa and Sb can be determined from the rotational speed of the bending motor 10 according to time, but may be detected using a position detection sensor. Further, the bending position detecting means 19 can count the number of times the coil wire 2 is bent, and can detect a predetermined number of times of bending, that is, the number of laminated coils.

  A ninth embodiment of the present invention is shown in FIGS. FIG. 25 is a perspective view showing the configuration of the ninth embodiment. The turning radius changing means F is changed by changing the attachment position of the lever 12 attached to the rotating shaft 11 of the bending means C and changing the length of the lever 12 to act. Form. 26 is a cross-sectional view taken along the line YY of FIG. 25. The lever 12 is provided with a plurality of mounting holes 12a, 12b, and 12c, and the rotation radius can be changed depending on the position where the lever 12 is mounted. FIG. 26 and FIG. 27 show a state in which the rotation radius is attached to the hole 12a which is the longest position. By increasing the rotation radius, it is possible to perform a bending process at a high speed by providing a plurality of bending pressing bodies 13 even for a large coil shape as shown in FIG. Even if one side of the coil wire 2 is lengthened from the position U1 to the position U3, the bending pressing bodies 13e and 13f can be provided to be opposed to each other by 180 degrees, so that the number of bendings per rotation can be made twice. That is, the bending pressing body 13f can send the wire coil 2 to the position U3. At this time, the bending motor 13e has not yet reached the bending position. If the coil wire 2 can be sent from U1 to U3 between the angles θ in the figure, it can be bent continuously, and the winding speed of the coil increases.

  In the operation schematic diagram of FIG. 28, the position of the fulcrum is set to the position of the hole 12c, and the bending pressing body 13 is rotated with a small rotation radius. If the generated torque of the bending motor is the same, the force acting on the bending pressing body 13 at this time becomes large, and processing can be performed even with a coil with a small curvature radius or a coil wire with a high hardness material.

FIG. 29 and FIG. 30 are operation schematic diagrams showing Embodiment 10 of the present invention. In FIG. 29, apart from the bending guide 9ba, a wire rod guide 9bb is provided oppositely, the rotation direction of the bending pressing body is rotated in the counterclockwise Lc direction opposite to the conventional one, and the coil wire 2 as shown in FIG. Is bent downward in the figure. At this time, the lamination guide 21 shown in FIG. 1 is also provided in the opposite direction to FIG.
It is also possible to create a parallel type coil by initially rotating the bending pressing body 13 clockwise and then rotating it counterclockwise from the middle.

A Winding device B Wire supply means C Bending means D Position changing means F Turning radius changing means 2 Coil wire 3 First motor (drive mechanism)
4 First drive roller (drive mechanism)
5 First passive roller (drive mechanism)
9ba, 9bb Bending guide 10 Bending motor (rotating mechanism)
13, 13a, 13b, 13c, 13d Bending pressure body 14 Coil
19 Bending position detection means

Claims (13)

In a winding device for manufacturing a non-circular coil having a bending portion and a non-bending portion, a wire supply means for sending and gripping a coil wire, a bending guide provided on the wire supply means side, and the bending guide A bending means for bending a coil wire to be bent to form a coil and a rotating mechanism for rotationally driving the bending means are provided, and the bending means is rotated outward from the outer periphery of the coil at a position after the bending of the coil wire. A winding device characterized by having a center and repeating rotation in one direction .   2. The winding device according to claim 1, wherein an outer periphery of the coil at a position after bending of the coil wire does not intersect with a locus of the bending means by the rotating mechanism.   The winding device according to claim 1 or 2, wherein the coils are stacked in a direction opposite to a direction in which the rotation mechanism is installed.   After the bending means abuts on the coil wire material and bends the coil wire material, the wire material supply means moves the coil wire material from the bent position to a predetermined position after returning to the bending position of the coil wire material. 4. The winding device according to any one of 1 to 3, which sends out a length. The winding device according to any one of claims 1 to 4, wherein the bending means lowers or temporarily stops the rotation speed when the coil wire is in contact. A bending position detecting means for detecting the position of the bending means is installed at a position before the bending means comes into contact with the coil wire , and the bending means is moved when the bending means reaches the position of the bending position detecting means. The winding device according to claim 5, wherein the winding device is decelerated .   The winding device according to any one of claims 1 to 6, further comprising position changing means for changing a center position of rotation of the bending means.   The winding apparatus according to claim 7, wherein the position changing unit is operated during the operation of the bending unit.   The wire supply means includes a drive mechanism for holding and sending the coil wire, and a wire guide for guiding the coil wire sent from the drive mechanism, and the bending guide is provided at an end of the wire guide. The winding device according to any one of claims 1 to 8. The bending means includes a plurality of bending pressing bodies, and the bending pressing bodies are sequentially brought into contact with the coil wire and bent . Winding device.   The winding device according to claim 10, wherein at least one of the plurality of bending pressing bodies is different in size or turning radius.   The winding device according to any one of claims 1 to 11, further comprising a turning radius changing means for changing a turning radius of the bending means.   13. The coil according to claim 1, wherein the rotation mechanism can switch a rotation direction, and a coil having a different winding rotation direction can be manufactured by switching the rotation direction of the rotation mechanism. Winding device.

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