JP6664664B2 - Winding device - Google Patents

Description

The present invention relates to a coil winding device.

  2. Description of the Related Art In recent years, in order to reduce the size of a rotating machine and improve its performance, it has been practiced to wind a coil with a rectangular cross section of a coil wire called an edgewise.

  FIG. 16 shows the configuration of Patent Document 1 and shows a method of manufacturing a flat wire into an oblong coil. In FIG. 16A, the bender 101 is rotated by 180 degrees together with the revolving gear 102, and the flat wire 101 is bent around the shaft 103. After this bending is completed, the bender 102 is rotated 180 degrees in the reverse direction to return to the initial position. As shown in FIG. 16 (b), the flat wire 101 is then fed out in the longitudinal direction by the feeder, and the newly fed flat wire 102 is inserted between the shaft 103 and the bender 102 to be bent first. Move 102 a away from shaft 103. Then, in a state in which the feeding of the flat wire 101 is prohibited, the bender 102 is rotated again as shown in FIG. 16C, and the flat wire 101 is folded around the shaft 103. Then, the rotation of the bender 102 is further continued, and the newly fed flat wire 11 is bent into a U-shape as shown in FIG. In order to continue winding the elliptical coil, the bender 102 is returned to the position shown in FIG.

JP 2011-61099 A

  In the winding device of Patent Document 1, after bending by rotating the bender 102 by 180 degrees, the bender 102 is reversely rotated 180 degrees to return to the original position for feeding out the flat wire 101 and the next bending. A complicated mechanism for clamping the flat wire at the time of bending the bender 102 and releasing the clamp at the time of bending is required. Further, the time required for returning the bender 102 is wasted, and the coil cannot be wound at a high speed, resulting in an increase in manufacturing cost.

  An object of the present invention is to solve the above-mentioned problem, and to provide a device for winding a circular coil such as an elliptical coil at a high speed with a simple configuration.

The present invention provides a wire feeder for feeding and gripping a coil wire, a wire guide provided in a coil wire feeder of the wire feeder, and a first guide body for guiding a bending direction of the coil wire from the wire guide. And a first guide driving means for moving the position of the first guide, and a winding device for producing a coil having an arc portion in which a coil wire is bent in an arc shape and a linear portion in which the coil wire is linear. And while the coil wire is continuously fed in one direction by the wire feeder, the first guide is moved between the position where the arc portion is formed and the position where the straight portion is formed by the first guide driving means. It is possible to move repeatedly.

In the winding device of the present invention, the second guide for guiding the coil wire is provided at a position where the coil wire is sandwiched between the first guide and the first guide.

ADVANTAGE OF THE INVENTION According to the winding apparatus which concerns on this invention, the wire supply means which sends and grips a coil wire, the 1st guide which guides the sent coil wire, and the guide drive which moves the position of a 1st guide In addition, the position of the first guide is adjusted in synchronization with the operation of the wire supply means to produce a circular coil, so that the coil can be wound at a high speed with a simple configuration, and productivity can be increased to increase mass production. Time costs can be reduced.
Further, according to the winding device of the present invention, a wire supply means for sending and gripping the coil wire, a first guide for guiding the sent coil wire, and a guide drive for moving the position of the first guide. Means, a circular coil production mode for producing a coil by adjusting the position of the first guide body in synchronization with the operation of the wire supply means, and a bend having a rotation center outside the coil outer periphery generated by the wire coil. And a rectangular coil production mode for producing a coil by means of a bending drive means for rotating and driving the bent body in synchronization with the wire rod supply means, so that by switching the production mode, a circular coil and a rectangular coil can be formed. It can be manufactured, and a coil having a different shape can be wound by one unit, so that equipment costs can be reduced.

FIG. 1 is a perspective view illustrating a configuration of a winding device according to a first embodiment of the present invention. FIG. 1 is a plan view illustrating a configuration of a winding device according to a first embodiment of the present invention. FIG. 4 is an explanatory diagram illustrating an operation of the winding device according to the first embodiment of the present invention. FIG. 7 is an explanatory diagram illustrating an operation of the winding device according to the second embodiment of the present invention. FIG. 6 is a perspective view illustrating a configuration of a winding device according to a second embodiment of the present invention. FIG. 9 is an explanatory diagram illustrating an operation of the winding device according to the third embodiment of the present invention. FIG. 14 is an explanatory diagram illustrating an operation of the winding device according to the fourth embodiment of the present invention. FIG. 13 is a perspective view illustrating a configuration of a winding device according to a fifth embodiment of the present invention. FIG. 14 is an explanatory diagram illustrating an operation of the winding device according to the fifth embodiment of the present invention. FIG. 13 is a perspective view illustrating a configuration of a winding device according to a sixth embodiment of the present invention. FIG. 14 is a plan view illustrating a configuration of a winding device according to a sixth embodiment of the present invention. FIG. 13 is a perspective view illustrating a configuration of a winding device according to a seventh embodiment of the present invention. FIG. 13 is a perspective view illustrating a configuration of a winding device according to a seventh embodiment of the present invention. FIG. 14 is an explanatory diagram illustrating an operation of the winding device according to the seventh embodiment of the present invention. FIG. 14 is an explanatory diagram illustrating an operation of the winding device according to the seventh embodiment of the present invention. The block diagram of the conventional winding device.

  Embodiments of the present invention will be described below with reference to the drawings, taking each of Examples 1 to 7 as an example. The contents of the present invention are not limited to these embodiments.

  First Embodiment A first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a winding device A according to the first embodiment, and FIG. 2 is a plan view of FIG. 1 viewed from the Y direction. The wire supply means B is for sending or stopping and gripping the coil wire 2 having a rectangular cross section and sending the coil wire 2 wound on 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 each including a combination of a motor and a drive roller. That is, a first drive mechanism that sandwiches the coil wire 2 between the first motor 3, the first drive roller 4 that transmits the rotation of the first motor 3, and the first passive roller 5 that rotates passively with the first drive roller 4. And a second drive mechanism that sandwiches the coil wire 2 between the second motor 6, the second drive roller 7, and the second passive roller 8 that rotates passively. The coil wire 2 is sent out by rotating in the directions of the arrows K2, K3, and K4. The coil wire 2 is first sent by the first drive roller 4 and the first passive roller 5, is guided by the wire guide 9a, is further driven by the second drive roller 7 and the second passive roller 8, and reaches the wire guide 9b. The wire coil 2 that has passed through the wire guide 9b is sandwiched between the second guide body 10 and the first guide body 11, and is sent linearly as described later, or is sent after being bent in an arc shape. The second guide body 10 is fixed to the substrate 12 via the second shaft 10b, and guides the coil wire 2 by the groove 10a. The first guide body 11 is fixed to a first shaft 11b, and guides the wire coil 2 by a groove 11a. The first shaft 11b is operated by a first guide driving means 16 including an operation shaft 16a and an electromagnetic solenoid 16b via a lever 15, and is energized by energizing a coil (not shown) provided in the electromagnetic solenoid 16b. The shaft 16a is moved in the direction of the arrow N in the figure, and the power is stopped, so that the shaft can be returned to the original position by the return spring 18. Reference numeral 19 denotes a laminating guide for guiding circular coils to be laminated.

  Next, the operation will be described. The coil wire 2 is supplied from the left end in FIG. 1, driven by the wire supply means B, and sent from the wire guide 9 b to the second guide 10. The wire coil 2 is sandwiched between the lower side of the second guide 10 and the upper side of the first guide 11, and the wire coil 2 is bent into an arc shape or linearly by the supply of the coil wire 2 by the wire feeder B. Send to At this time, while the wire coil 2 is continuously supplied, it is possible to select whether to be bent in an arc shape or to feed straightly depending on the position of the first guide body 11 driven by the first guide body driving means 16.

  FIG. 3 is a view seen from the XX direction in FIG. 1 and schematically illustrates the operation of the winding of the first embodiment. In FIG. 3A, the coil wire 2 is sent out by the wire supply means B, and moves from the wire guide 9b between the lower part of the second guide 10 and the upper part of the first guide 11. At this time, the electromagnetic solenoid 17 (FIG. 1) is in an energized state, the first guide 11 is moved to the lower right side (arrow N1), and the second guide 10 and the first guide 11 2 is linearly guided and transmitted.

  FIG. 3B shows a state in which the first guide body 11 is moved to the upper left (arrow N2) by the return spring 18 with the electromagnetic solenoid 16b de-energized, and the coil wire 2 is the first guide. The body 11 bends upward (counterclockwise) in an arc shape.

  FIG. 3 (c) shows a state where the electromagnetic solenoid 16b is energized again, the first guide 11 is moved to the lower right side (arrow N1), the same state as in FIG. 3 (a), and the coil wire 2 is linearly moved. To send to.

In FIG. 3D, the electromagnetic solenoid 16b is again de-energized, and the coil wire 2 is bent into an arc shape in the same state as in FIG. 3B, thereby forming an oval coil 2a. The oval coils 2a are sequentially stacked along a stacking guide 19 shown in FIG.
The length of the linear portion of the elliptical coil 2a is determined by controlling the sending speed of the coil wire 2 and the timing of the movement of the first guide 11, that is, the control of the time of energization of the electromagnetic solenoid 16b with a computer (not shown). (Not shown).
The first guide driving means 16 may use a pneumatic or hydraulic cylinder mechanism, a linear mechanism using a motor and a screw, or a cam function other than the electromagnetic solenoid.

  4 and 5 are explanatory diagrams of the operation of the second embodiment of the present invention. The difference from the first embodiment is that the first guide body 11 is held close to the first guide body 10 and the coil wire 2 is continuously bent. FIG. 4 shows a state in which the electromagnetic solenoid 17 is de-energized and the second guide body 11 is held in the upper right direction (arrow N2), and the second guide body 10 and the first guide body 11 use the coil wire 2. And the coil wire 2 is sent out by the wire supply means B, whereby the coil wire 2 can be continuously bent. As a result, as shown in FIG. 5, the coil wire 2 is guided and laminated by the lamination guide 19 to form the circular coil 2b.

  FIG. 6 is an operation explanatory diagram of the third embodiment of the present invention. The difference from the first embodiment is that the size of the first guide body 11 or the positional relationship with the second guide body 10 is changed, thereby changing the size of the bending of the coil wire 2. is there. In FIG. 6A, the diameter D1 of the first guide 11d is increased, and the distance L1 in the horizontal direction and the distance H1 in the vertical direction from the second guide 10 are increased. As a result, the bending radius R1 of the coil wire can be greatly bent. In FIG. 6B, the diameter D2 of the first guide 11e is reduced, and the distance L2 in the horizontal direction and the distance H2 in the vertical direction from the second guide 10 are further reduced. As a result, the bending radius R2 of the coil wire can be bent small. FIG. 6 shows an example, in which a desired coil bending radius can be obtained by variously changing the size of the first guide rotating shaft 11 and the distance between the second guide 10 and the second guide. Manual or automatic adjustment means for adjusting the distance from the body 10 may be provided.

FIG. 7 is an operation explanatory diagram of the fourth embodiment of the present invention. The difference from the first embodiment is that a third guide is provided. In FIG. 7A, a third guide body 20 is provided in front of the second guide body 10 and the first guide body 11, and guides the delivery of the coil wire 2. Like the other guides, the third guide 20 has a circular groove to stabilize the running of the coil wire 2, so that the dimensional accuracy in coil manufacturing and the winding speed of the coil can be improved.
FIG. 7 (b) shows the bending of the coil wire 2 by the guidance of only the first guide body 11, which is suitable for a thin or soft coil wire, the configuration of the manufacturing apparatus is simple, and the cost can be reduced.

  FIG. 8 shows a configuration of the fifth embodiment of the present invention, and FIG. 9 shows an operation description. The difference from the first embodiment is that the first rotator 11c of the first guide and the second rotator 10c of the second guide are rotatable. FIG. 8 is a partial cross-sectional view showing a main part of the first guide body and the second guide body. The first rotary body 11c is on the central axis 11b, and the second rotary body 10c is on the second shaft 10b. It is configured to be slidable and rotatable with respect to each other, and rotates as the arrow shown in FIG. In the present embodiment, the first rotator 11c and the second rotator 10c are respectively rotated, but a rotator may be provided on one of them. The sliding resistance with the coil wire 2 can be reduced by the rotation of the first rotating body or the second rotating body, and the inability to drive the wire supply means B can be reduced.

  The configuration of the sixth embodiment of the present invention is shown in FIGS. The difference from the first embodiment is that a second guide driving unit 13 is provided. FIG. 11 is a plan view seen from the Y direction in FIG. In FIGS. 10 and 11, the substrate 12 is omitted. The second guide driving means 13 includes a motor 13b and a speed reducer 13a, and rotates the second guide body 10 in the direction of arrow L. The second guide driving means 13 rotates in synchronization with the driving of the wire supply means B, and sends out the wire coil 2. By driving the second guide driving means 13, even a relatively thick wire or a wire having a high hardness can be bent.

  FIGS. 12 and 13 show the configuration of the seventh embodiment of the present invention, and FIGS. 14 and 15 are explanatory diagrams of the operation. The difference from the first embodiment is that the first embodiment has a circular coil manufacturing mode for manufacturing a circular coil including an ellipse, whereas the seventh embodiment has a bent body to manufacture a rectangular coil. The point is that a rectangular coil manufacturing mode is provided. FIG. 12 is a perspective view of a winding device A according to the seventh embodiment. In FIG. 12, the substrate 12 and the coil stand 26 are omitted, and in FIG. 13, the description of the substrate 12 is omitted. In the seventh embodiment, a bent body 21 is provided instead of the second guide body 10 and the first guide body 11, and the second guide body drive means (bend drive means) 13 is moved in the direction of the arrow P via the lever 22 and the rotating shaft 23. The rotating body 21 makes a rotating motion, and the bent body 21 abuts on the coil wire 2 and bends the coil wire 2 upward in the drawing with a bending guide 9ba described later as a fulcrum. The stacking guide 24 is fixed to the wire guide 9b side, and when the coil wire 2 is formed into a coil and bent, guided by the stacking guide 24 and sequentially stacked.

  The bent coil 21 rotates several times to bend the coil wire 2 to form a stacked rectangular coil 25 on the coil base 26 as shown in FIG. Assuming that the center line of the rectangular coil at the position where the bent body 21 bends the coil wire 2 is Z1, and the center line of the second guide driving means 13 is Z2, the center line Z2 is located outside the outer peripheral surface of the coil 25. positioned.

  The winding process of the winding device according to the seventh embodiment of the present invention is schematically illustrated in FIGS. 14 and 15 by taking the manufacture of a rectangular coil as an example. 14 and 15 are views from the XX direction shown in FIG. FIG. 14 (a) shows Step 1 and shows a state before the coil wire 2 starts winding, the rotating shaft 23 and the bent body 21 are stopped, and the coil wire 2 is indicated by an arrow J. And protrudes from the wire guide 9b. The circular two-dot chain line indicates the rotation locus of the bent body 21. When the coil wire 2 is further fed and reaches the length of one side of the rectangular coil as shown in step 2 of FIG. 14B, the wire supply means B stops rotating and grips the coil wire 2. The control of the feeding length of the coil wire 2 is performed by the rotation speed of the motor of the wire feeding means B. In synchronization with the feeding of the coil wire 2 by a predetermined length, the bent body 21 starts rotating in the direction of arrow P, and the bent body 21 abuts on the coil wire 2 and the coil wire 2 is located at the end of the wire guide 9b. Bending is started around the curved bending guide 9ba.

  FIG. 14 (c) shows Step 3 and shows a state in which the coil wire 2 is bent at approximately 90 degrees via the curved portion 2a. In this state, the bent body 21 is rotated clockwise and moved to a position on the substantially left end, and the coil wire 2 is turned about 90 degrees counterclockwise, and in some cases 90 degrees or less in consideration of the effect of springback. Bend to an acute angle. Further, when the bent body 21 continues to rotate clockwise, the bent body 21 is separated from the coil wire 2. In step 4 of FIG. 14D, the bent body 21 further rotates, and after bending the coil wire 2, gradually moves away from the coil wire 2. Although the position of the coil wire 2 is maintained without moving between FIGS. 14B to 14C, the supply of the coil wire 2 is started by the wire supply means B thereafter. At this time, the bent body 21 also continues to rotate, and the bent body 21 moves faster, so that the straight portion 2b of the coil wire 2 comes into contact with the bent body 21 as shown in FIG. There is no. The timing of sending the coil wire 2 may be performed after the bent body 21 is separated by a considerable distance, if safety is ensured.

  When the coil wire 2 is sent out by the length of the other side of the rectangular coil, the wire feeding means B stops sending and holding the coil wire 2 as shown in step 5 of FIG. The bent body 21 rotates continuously and approaches the coil wire 2. At this time, since the driving load applied to the bent body 21 is small, it is possible to increase the speed and reduce the time. Especially when one side of the rectangular shape is short, unnecessary time can be eliminated.

FIG. 15 (b) shows Step 6, in which the bent body 21 abuts on the coil wire 2 and bending is started around the bending guide 9ba of the bending guide 9b, and the second bending is performed in Step 7 of FIG. 15 (c). Is completed. At this time, a relatively large load is applied to the bent body 21, and the bending speed is reduced and the motor torque is increased so that the coil wire 2 is not damaged by the impact. Further, by the same operation, the third bending is performed in step 8 of FIG. By repeating the above operation, rectangular coils 25 stacked as shown in FIG. 13 are manufactured.
As shown in FIG. 15D, the coil wire 2 is bent by the bent body 21, guided on the stacking guide 24, and stacked in a coil shape. When the coil 25 is formed, the center Z1 of the coil and the center Z2 of the rotating shaft 11 are different in position, and Z2 is located further outside the outer periphery of the coil 14.

  In the seventh embodiment, the second guide driving means 13 is used as the bending driving means. However, a driving means optimal for winding a rectangular coil may be separately provided.

Reference Signs List A Winding device B Wire supply means C Bending means 2 Coil wire 2a Non-circular coil 2b True circular coil 9ba Bending guide 10 Second guide 10c Second rotator 11 First guide 11c First rotator 13 2 guide driving means (bend driving means)
16 first guide driving means 21 bent body 25 rectangular coil

Claims (2)

A wire feeder for feeding and holding the coil wire, a wire guide provided at a feeder of the coil wire of the wire feeder, and a first guide body for guiding a bending direction of the coil wire from the wire guide. A first guide driving means for moving the position of the first guide , producing a coil having an arc portion obtained by bending the coil wire in an arc shape and a linear portion in which the coil wire is linear. A winding device, wherein the first guide body is moved between a position where the circular arc portion is formed and a position where the linear portion is formed while continuously feeding the coil wire material in one direction by the wire material supply means. A winding device , wherein the first guide driving means is capable of repeatedly moving . 2. The winding device according to claim 1, wherein a second guide for guiding the coil wire is provided at a position where the coil wire is sandwiched by the first guide . 3.

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