JPH06251972A - Coil winding method and device therefor - Google Patents

Abstract

PURPOSE:To enable a wire to be easily led to a bobbin at a right angle and mechanically wound on a bobbin by a method wherein a wire tied to a terminal pin is led to the free end of the bobbin and then pressed against the bobbin by a coil presser, then a nozzle is revolved around the bobbin, and the wire is bent in the circumferential direction of the bobbin. CONSTITUTION:A wire W drawn out from a nozzle 3 is tied to a winding start end holder P1 provided to the one longitudinal end of the bobbin B. The bobbin B is held in a cantilevering manner so as to enable its longitudinal end where the winding start end holder P1 is provided to serve as a stationary end, the wire W tied to the winding start end holder P1 is led out to the free end of the bobbin B, and the wire W led out is pressed against the bobbin B by a coil presser 634 which is capable of bearing against the bobbin B. Thereafter, the wire W located in front of a bearing position is bent in the circumferential direction of the bobbin B by the relative revolution of the bobbin B to the nozzle 3, whereby the wire W is wound on the bobbin B.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for winding a wire on a bobbin which constitutes a transformer coil, a switching coil, etc., and more specifically, to a winding method for mechanizing the work of inserting the wire at right angles. Regarding winding device.

[0002]

2. Description of the Related Art As a winding method for a transformer coil or the like, for example, as shown in FIGS. 16 and 17, an arbor A is attached to a spindle S of a winding machine, a bobbin B is attached to the tip thereof, and a nozzle N is inserted from the tip. The nozzle N while feeding the wire W
After the wire rod W is twisted around the terminal pin P1 for the winding start end of the bobbin B and the terminal pin P1 is twisted, the nozzle N is moved to the fixed end side of the arbor A (the mounting side to the spindle S). There is one in which a bobbin B is rotated around an axis by a spindle S to perform winding (for example, JP-A-63-63).
242868).

[0003]

By the way, in the case of a coil having a small number of coil turns such as a switching coil, the number of turns of the coil changes due to the deviation of the winding start position of the wire material, and the electrical performance of the coil changes greatly. Therefore, when performing this type of winding, as shown in FIG. 18, after the wire rod W is drawn straight out from the terminal pin P1 in the axial direction of the bobbin B, the wire rod W is substantially perpendicular to the circumferential direction of the bobbin B. It is necessary to make a so-called right-angle insertion to bend the wire and always keep the winding start position constant. However, in order to carry out this right-angle insertion, in order to avoid the deformation of the bent portion Wk due to the tension in the winding, the bent portion Wk is moved to the bobbin B by some means for a while (about 2 to 3 turns) from the start of the winding. It is necessary to restrain the upper part, and this point becomes an obstacle, and the above-mentioned winding due to the relative rotation of the nozzle and the bobbin cannot be inserted at right angles.

That is, as shown in FIG. 18, if the bent portion Wk of the wire W is pressed against the bobbin B by the restraining member R and then the bobbin B is rotated to perform the right-angle insertion, the bobbin B
And the restraint member R must be rotated synchronously. For this purpose, a restraining member R and a mechanism for bringing the restraining member R into contact with and separating from the bobbin B have to be attached to the rotating portion such as the arbor A. However, since the rotating portion becomes remarkably large, it is actually adopted. Not at all.

Therefore, it is conceivable to fix the bobbin B and rotate the nozzle N around the bobbin B to perform the right angle insertion. However, in this case, in order to prevent the wire rod W1 from the wire rod supply source (not shown) to the retraction end N1 of the nozzle N from being entangled with the bobbin B or the arbor A, as shown by a two-dot chain line in the figure, the nozzle N It is necessary to swivel the nozzle N in a state in which the wire rod W1 is forwarded to the front of the bobbin B by tilting the wire rod N1 side toward the free end (tip) side of the arbor A rather than the wire rod N2 side. However, if the nozzle N is swung in this state, the nozzle N and the restraint member R interfere with each other, so that the right angle insertion is impossible after all.

For the above reasons, when it is necessary to insert the wire at a right angle, the wire is pulled out from the wire to the terminal pin.
After the worker manually performs the process of winding the wire several times after bending, the machine automatically winds the wire. The offer was eagerly desired.

Further, in a switching coil or the like, as shown in FIG.
A plurality of (two in the figure) wire rods Wa and Wb may be inserted in D in parallel, and the wire rods Wa and Wb may be wound at the same time. In this case, as shown in FIG. 20 (a), care must be taken so that the wire rods Wa, Wb are perfectly aligned in the process from the right angle insertion of the wire rods Wa, Wb to the winding process. When Wa and Wb are twisted, as shown in FIG. 20 (b), the aligned state of the wire materials Wa and Wb is disturbed and the coil characteristics are greatly impaired.

A first object of the present invention is to provide a winding method and a winding device capable of easily mechanizing a wire rod at right angles. A second object of the present invention is to provide a plurality of wire rods at right angles in an aligned state. It is to provide a winding method and a winding device that can be inserted.

[0009]

A method of winding according to the present invention will be described with reference to FIG.
After attaching the wire W unwound from the bobbin B to the winding start end holding portion P1 provided at one end in the axial direction of the bobbin B, the wire W is pulled out to the center side in the axial direction of the bobbin B for a certain length and then the bobbin B
The winding is started by the relative rotation between the bobbin B and the nozzle 3 by bending the bobbin B in the circumferential direction. Then, the bobbin B is cantilevered so that the winding start end holding portion P1 side becomes the fixed end side, and the wire W attached to the winding start end holding portion P1 is pulled out to the free end side of the bobbin B while By pressing the wire W drawn by the abuttable coil presser 634 against the bobbin B, the wire W ahead from this pressing position is bent in the circumferential direction of the bobbin B by the relative rotation of the nozzle 3 and the bobbin B. The first object described above is achieved. Claim 2
In the winding method of No. 3, the nozzle 3 in which the wire W is pressed to the bobbin B until a certain number of turns is reached is located on the free end side of the bobbin 3 with respect to the position where the wire W is pressed by the coil presser 634. Revolve around B and perform.
According to the winding method of claim 3, as shown in FIGS. 10 and 11, in the coil winding method of claim 2, the nozzle 8 is used.
When a plurality of wires Wa and Wb are inserted in parallel with each other and the nozzle 8 revolves around the bobbin B, the nozzle 8 has the same revolution cycle as the revolution cycle of the nozzle 8 so that the same surface always faces the bobbin B. The second object described above is achieved by rotating the nozzle 8 about its axis.

Further, referring to FIGS. 1 to 4, in the winding device of the present invention, the wire W fed from the nozzle 3 by the relative movement of the nozzle 3 and the bobbin B is moved to one end in the axial direction of the bobbin B. The wire W attached to the winding start end holding portion P1 provided on the side of the bobbin B is pulled out from the winding start end holding portion P1 by the relative rotation of the nozzle 3 and the bobbin B.
To wind. Then, the bobbin B can be cantilevered so that the winding start end holding portion P1 side becomes the fixed end side, and the wire W drawn from the winding start end holding portion P1.
With the coil presser 634 capable of pressing the bobbin B on the bobbin B and the nozzle 3 positioned closer to the free end side of the bobbin B than the pressing position of the wire rod W by the coil presser 634.
The first object mentioned above is achieved by including the nozzle revolution movement generating means 10 for revolving around the bobbin B. In a winding device according to a fifth aspect, as shown in FIGS. 12 to 14, in the winding device according to the fourth aspect, a nozzle 8 is provided so that a plurality of wire rods Wa and Wb can be inserted in parallel.
The nozzle 8 is moved to the bobbin B by the nozzle revolution movement generating means 10.
By providing the nozzle rotation motion generating means 90 for rotating the nozzle 8 at the same cycle as the revolution cycle of the nozzle 8 such that the same surface of the nozzle 8 always faces the bobbin B when the nozzle 8 revolves around the axis of The second object mentioned above is achieved.

[0011]

In the winding method of the present invention, since the bobbin B is cantilevered so that the winding start end holding portion P1 side becomes the fixed end side, the wire W attached to the winding start end holding portion P1 is bobbin B. When the nozzle 3 is bent toward the free end side by a certain length and then bent in the circumferential direction, the nozzle 3 is moved more than the bobbin B than the coil retainer 634.
It is possible to avoid the interference between the nozzle 3 and the wire W and the coil retainer 634 and the bobbin B by arranging them toward the free end side of the. According to the method of claim 2, the nozzle 3, the wire W and the coil retainer 634 are provided.
The wire W can be wound at right angles and wound up to a fixed number of turns while avoiding interference with the bobbin B. According to the method of claim 3, since the same surface of the nozzle 8 always faces the bobbin B, even if the nozzle 8 revolves around the bobbin B, the wire material Wa,
Wb does not twist.

In the winding device of the present invention, the bobbin support A1
After the bobbin B is cantilevered so that the wire winding start end portion P1 side becomes the fixed end side, the nozzle 3 is attached to the bobbin B.
With respect to the bobbin B, the wire W is pulled out by moving the bobbin B relative to the free end side, and the coil presser 634 presses the wire W on the bobbin B halfway. Subsequently, the nozzle 3 is revolved around the bobbin B, and the wire W is bent at the pressing position of the coil presser 634 as a boundary. In the apparatus according to the fifth aspect, when the nozzle 8 revolves around the bobbin B, the nozzle 8 is rotated so that the same surface of the nozzle 8 always faces the bobbin B to prevent the wire rods Wa and Wb from twisting.

Incidentally, in the section of means and action for solving the above problems for explaining the constitution of the present invention, the drawings of the embodiments are used for making the present invention easy to understand. It is not limited to.

[0014]

【Example】

-First Embodiment- A first embodiment of the present invention will be described with reference to FIGS.
In the following description, regarding the operating direction of the winding machine, the horizontal direction of FIG. 3 is the X-axis direction, the vertical direction of FIGS. 3 and 4 is the Z-axis direction, and the horizontal direction of FIG. 4 is the Y-axis direction. The direction corresponding to.

As shown in FIGS. 3 and 4, the winding machine of this embodiment has four spindles 2 arranged on the front side of the machine body 1 in the X-axis direction at a constant pitch, and these spindles 2 are the same. Nozzles 3 arranged in the same direction at the same pitch
And the relative movement of these wires simultaneously winds the wire rod W fed into the nozzle 3 from the wire rod supply source (not shown) through the tension unit 4 onto the four bobbins. The spindle 2 can be rotated about each axis by a servo motor (not shown), and the arbor A1 shown in FIG. 1 can be coaxially attached to each front side. Also,
The spindle 2 can be positioned at an appropriate pitch (for example, every 1 °) by a motor control circuit (not shown). The nozzle 3 can be moved in three axial directions of X axis, Y axis, and Z axis by a nozzle moving mechanism 10 provided on the upper portion of the main body 1, and can be swung around the X axis by a nozzle swiveling mechanism 20. Has been done. The arbor A1 will be described later.

As shown in detail in FIGS. 5 and 6, the nozzle moving mechanism 10 is attached to the base 11 fixed to the upper surface of the machine body 1 and a linear guide bearing 120 on the base 11 so as to be attached to the X-axis. Saddle 12 that can move in any direction,
A ram 13 attached to the saddle 12 via a linear guide bearing 130 and movable in the Y-axis direction, a head 14 attached to the ram 13 via a linear guide bearing 140 and movable in the Z-axis direction, and a saddle 12 Servomotor 121 and ball screw 122 for moving the X axis direction, servomotor 131 and ball screw 132 for moving the ram 13 in the Y axis direction, and servomotor 141 and ball screw 142 for moving the head 14 in the Z axis direction. And a nozzle 3 attached to the head 14 by combining the movements of the saddle 12, the ram 13, and the head 14.
Is moved to a desired position together with the nozzle turning mechanism 20.

The nozzle swivel mechanism 20 includes a prism-shaped nozzle holder 21 to which the nozzle 3 is attached, which is attached to the X of the head 14.
The motor 210 mounted on the left end side (the left side in FIG. 5) in the axial direction is rotated about the shaft 210. The rotational position of the nozzle holder 21 is determined by the three cams 211 to 21 mounted on the right end side (right side in FIG. 5) of the head 14 in the X-axis direction.
3 and the cam surfaces on the outer circumferences of these cams 211 to 213, and they are detected by a limit switch (not shown) which is turned on / off according to the undulations.

In this embodiment, the nozzle 3 is erected in the upright position in the Z-axis direction (the position shown in FIG. 5) and the nozzle 3 is tilted about the wire rod feeding end 3b toward the spindle 2 side until it is parallel to the Y-axis direction. Position (position in FIG. 6) and a position in which the nozzle 3 is tilted to the opposite side of the spindle 2 about the wire rod feeding end 3b until it is parallel to the Y-axis direction (position inverted by 180 ° from the position in FIG. 6). The positions of the cams 211 to 213 are adjusted so that the limit switches are turned on at, and the nozzle holder 21 can be stopped at these positions. Note that the nozzle 3 is a well-known one having a tubular shape with an inner diameter sufficient to insert the wire W, and in this embodiment, the side where the wire W is inserted is the retraction end 3a and the wire W is the same as in the above-described conventional example. The side that is pulled out is called the feeding end 3b. Figures 4 and 6
Reference numeral 5 denotes an air nipper for cutting the wire W, which is movable by the air cylinder 50 in the Z-axis direction.

As shown in FIGS. 3 and 4, the machine body 1
A switching adapter 6 is arranged on the lower part of the front surface of the. This switching adapter 6 is for taping, inserting at right angles, and outputting at right angles, which are peculiar to the winding work of the switching coil.
0, 61, 62, a coil pressing unit 63, and an adapter moving mechanism 64 for moving these units 60 to 63 in the X-axis, Y-axis, and Z-axis directions.

As shown in detail in FIGS. 7 and 8, the adapter moving mechanism 64 is attached to the frame 65 fixed to the machine body 1 and the linear guide bearing 660 on the frame 65, and moves in the Z-axis direction. A movable elevating stage 66, and a saddle 67 attached to the elevating stage 66 via a linear guide bearing 670 and movable in the Y-axis direction.
A table 68 that is attached to the saddle 67 via a linear guide bearing 680 and is movable in the X-axis direction; and a servo motor 661 that moves the elevating stage 66 up and down in the Z-axis direction.
And ball screw 662, servo motor 671 for moving saddle 67 in the Y-axis direction, and ball screw 672.
And a servo motor 681 that moves the table 68 in the X-axis direction and a ball screw 682, and move the various units 60 to 63 to desired positions by combining the movements of the lifting stage 66, the saddle 67, and the table 68. Let

As shown in detail in FIGS. 7 to 9, the coil pressing unit 63 is moved up and down in the Z-axis direction by a bracket 630 fixed to the table 68 and air cylinders 631 attached to both ends of the bracket 630. A holder block 632, five guide rods 633 mounted on the holder block 632 at the same pitch as the spindle 2 in the X-axis direction and having upper and lower ends slidably supported by the bracket 630, and an upper end of the guide rod 633. It has a flat plate-shaped coil retainer 634 which is fixed and protrudes to both sides in the X-axis direction about the guide rod 633 by the same length. The table 68 moves in the X-axis, Y-axis, and Z-axis directions and the air cylinder 631. By guide rod 63
The relative position of the coil retainer 634 with respect to the spindle 2 is changed by a combination with the movement of 3 in the Z-axis direction.
In addition, as shown by a two-dot chain line in FIG.
Is movable above the spindle 2.
Further, in FIG. 3, FIG. 4, and FIG. 6, reference numeral 7 is a cut holder for holding the end portion of the wire W fed from the nozzle 3.

Next, a winding procedure by the winding machine of this embodiment will be described with reference to FIGS. To perform winding with the winding machine of this embodiment, first, as shown in FIG. 1, the arbor A1 is coaxially attached to the spindle 2 and the bobbin B is attached to the tip of the arbor A1. Here, the bobbin B is shown in FIGS.
Similar to 0, the terminal pin P1 for twisting the winding start end of the wire W is provided on one end side in the axial direction thereof. Arbor A
1 is almost the same as the arbor A of FIGS. 16 to 20, but is characterized in that the bobbin B is supported in a cantilever manner so that the terminal pin P1 of the bobbin B is on the fixed end side (spindle 2 side) of the arbor A1. To do. In order to realize the support of the bobbin B in such an orientation, the bobbin B can be attached only in the orientation shown in FIG. 1 and the bobbin B can be attached from both sides in the axial direction of the arbor A1.
There are two ways to attach to.

After the bobbin B is attached to the arbor A1, the winding machine is started and winding is performed in the following procedure. First, the nozzle 3 is positioned upright in the Z-axis direction by the nozzle swivel mechanism 20, and the movement of the nozzle 3 in the X-axis and Y-axis directions by the nozzle moving mechanism 10 is combined to move the nozzle 3 around the terminal pin P1. The wire rod W fed out from the nozzle 3 is swung and twisted to the terminal pin P1. Subsequently, as shown in FIGS. 1A and 2, the nozzle 3 is moved straight along the axial direction of the bobbin B to the free end side of the bobbin B (the tip side of the arbor A1), and the nozzle 3 is twisted to the terminal pin P1. The drawn wire W is pulled out toward the center of the bobbin B. Then, the coil retainer 634 is moved by the adapter positioning mechanism 64 and the air cylinder 631 of the coil retainer unit 63, and the wire W drawn from the terminal pin P1 is removed by the coil retainer 6
It is pressed onto bobbin B at 34. Although the wire W is pressed by the left end side of the coil presser 634 in FIG. 2, the wire W may be pressed by the right end side of the coil presser 634 depending on the position of the wire W.

After this, as shown by the two-dot chain line in FIG. 2, the nozzle turning mechanism 20 rotates the nozzle 3 toward the free end side of the arbor A1 about the wire rod feeding end 3b until it becomes parallel to the Y axis. Then, as shown in FIG. 1B, the nozzle moving mechanism 10 causes the nozzle 3 to revolve around the bobbin B, and the wire W fed from the nozzle 3 is moved to the bobbin B.
Wind gradually. This orbital motion is created by combining the motions of the nozzle 3 in the Z-axis direction and the X-axis direction. When the number of turns of the wire W reaches a predetermined number (about 2 to 3 turns), the revolution movement of the nozzle 3 is stopped, the nozzle 3 is erected in a position upright in the Z-axis direction, and the coil presser 634 is moved from the bobbin B. Separate.

According to the above procedure, the wire W is bent at a substantially right angle around the pressing position by the coil presser 634 and wound around the bobbin B, and the right angle insertion is performed without resorting to manual work. After the wire W is wound about 2 to 3 times, the deformation of the bent portion of the wire W is prevented by the frictional force between the wound portion of the wire W and the bobbin B, and hence the nozzle 3 is moved in the Z-axis direction thereafter. It is possible to quickly wind the wire W by rotating the bobbin B by the spindle 2 while moving it in the Y-axis direction in the upright state. When the nozzle 3 is reciprocated in the Y-axis direction to perform a multi-layer winding, the taping units 60, 61, 61
The bobbin B is taped by driving 62.

After the winding of the wire W is completed, the winding end of the wire W is pressed against the bobbin B by the coil retainer 634, and the nozzle 3 is fixed to the fixed end or the free end of the bobbin B (see FIGS. 1 and 2). Then, it is moved toward the terminal pin P2 for terminating the winding, which is planted on the fixed end side), and the wire W is twisted to the terminal pin P2. As a result, so-called right angle drawing can be performed in which the winding end of the wire W is pulled out at a right angle. After that, the excess length of the stripped wire W is supported by the cut holder 7, and the portion of the wire W pulled out from the terminal pin P2 is cut by the air nipper 5 to complete the whole process.

As is apparent from the above, in this embodiment, the bobbin B is cantilevered so that the terminal pin P1 for holding the winding start end is on the fixed end side, so that the bent portion of the wire W is pressed by the coil retainer 634. While pressing to prevent its deformation,
The nozzle 3 can be retracted to the free end side of the bobbin B from the position where the wire rod W is pressed by the coil presser 634, and the wire rod W can be wound a certain number of times while avoiding the interference between the nozzle 3 or the wire rod W and the bobbin B or the arbor A1. , Nozzle 3 and bobbin B
It is possible to improve work efficiency by mechanizing the right-angle insertion by relative movement with respect to and winding work associated therewith. Moreover, the nozzle 3
Is rotated around the bobbin B for right angle insertion, so the coil retainer 6 for pressing the wire W onto the bobbin B
It is not necessary to rotate 34 in synchronization with the bobbin B, and the mechanism for pressing the wire W becomes simple.

-Second Embodiment- A second embodiment of the present invention will be described with reference to FIGS. The winding machine of this embodiment winds a plurality of wires at the same time, and only the nozzle and its surroundings are different from those shown in FIGS. 3 to 9. Therefore, in the following, the description will be given centering around the nozzle, which is a characteristic part of the present embodiment, and the portions common to the first embodiment described above will be assigned the same reference numerals and description thereof will be omitted.

As shown in FIGS. 12 to 14, the winding machine of this embodiment has a nozzle 8 for guiding a plurality of wire rods, a nozzle swivel mechanism 80 for swiveling the nozzle 8 around the X axis, and a nozzle. 8 has a nozzle rotation mechanism 90 for rotating itself. The nozzle body 8 includes two tubular guide cylinders 8A and 8B in which two wire rods Wa and Wb are inserted one by one in a state where they are arranged symmetrically with respect to the axis of the cylindrical nozzle body 8C.
It is attached to C and is fitted into the nozzle holder 81 of the nozzle swivel mechanism 80 via a bush 810 so as to be rotatable around the axis of the nozzle body 8C. Note that FIG.
Although only two sets of nozzles 8 are shown in the figure, in this embodiment, four nozzles 8 are arranged at the same pitch as the spindle 2 in the X-axis direction as in the first embodiment.

The nozzle turning mechanism 80 is the nozzle moving mechanism 1.
No. 0 head 14 (see FIGS. 3 and 4) is attached to the left end side in the X-axis direction of the motor 82 by a motor 82 mounted on the nozzle holder 81.
Although it is common to the nozzle swivel mechanism 20 of the first embodiment in that it is rotated around 1a and 811b, the cams 812 to 814 for detecting the rotational position of the nozzle holder 81 are motors 8.
The point arranged on the second side and the shaft 811 on the right end side in the X-axis direction
The difference is that b is rotatably fitted in the center of the gear 900 of the nozzle rotation mechanism 90. 820 is a motor 82
Is a belt that transmits the rotation of the shaft to the shaft 811a.

The nozzle rotation mechanism 90 transmits the rotation of the servo motor 901 attached to the right end side (the right side in FIG. 12) of the head 14 in the X-axis direction to the drive shaft 903 on the nozzle holder 81 by a pair of gears 900 and 902. , This drive shaft 90
The rotation of No. 3 is decelerated by the pair of worm 904 and worm wheel 905 and transmitted to the nozzle body 8C fixed integrally with the worm wheel 905, and the nozzle 8 is rotated around the axis of the nozzle body 8C. The drive shaft 90
3 is rotatably supported by a plurality of brackets 906 mounted on the nozzle holder 81 at an appropriate pitch.

In the winding machine having the above-described structure, after the bobbin B is attached to the arbor A1 as in the first embodiment, the nozzle 8 is wound on the bobbin while the wire rods Wa and Wb are fed from the wire rod feed end 8b. Although the wire rods Wa and Wb are inserted at right angles around B by revolving, the nozzle 8 is different from the first embodiment in that the nozzle 8 rotates in synchronism with the revolution of the nozzle 8. That is, in the case where the winding machine of the present embodiment is inserted at a right angle, the terminal pin P as shown in FIGS.
After pulling out the wire materials Wa and Wb from 1 and pressing them with the coil presser 634, the nozzle 8 is tilted in the Y-axis direction to revolve around the bobbin B, and the same surface of the nozzle 8 always faces the bobbin B. As shown by the arrow U in the figure, the nozzle 8 is rotated in the same direction as the direction of revolution in the same cycle.

When the nozzle 8 is rotated in this way, the relationship between the guide cylinders 8A and 8B of the nozzle 8 and the surface of the bobbin B is always constant, so that the wire rods Wa and Wb are aligned while preventing their twisting. It can be wound around bobbin B with. When the nozzle 8 is rotated about its own axis, the wire rods Wa, W corresponding to the rotation of the nozzle 8 are provided on the front side of the wire rod feeding end 8a of the nozzle 8.
Since b is twisted, it is desirable to twist the wire materials Wa and Wb in the opposite directions in advance or to rotate the nozzle 8 after the winding is finished to eliminate the twist. Further, in the present embodiment, when the nozzle holder 81 is swung, the gears 900 and 902 rotate relative to each other so that the nozzle 8 rotates. Therefore, when the nozzle holder 81 turns, the motor 9 is used so as to cancel the rotation of the nozzle 8 accompanying this.
01 needs to be rotated.

In the winding machine of this embodiment, the wire rods Wa and Wb are attached to the terminal pins P1 (P2) as shown on the left side of FIG.
When the nozzle 8 is twisted, the nozzle 8 revolves around the terminal pin P1 (P2) while revolving in the same cycle,
As in the case of winding the bobbin B, the plurality of wires Wa and Wb can be twisted in an aligned state to the terminal pin P1 (P2). Further, as shown on the right side of FIG. 15, the groove G of the bobbin B is
When inserting the wires Wa and Wb into the guide tube 8A, 8B
It is also possible to improve the maneuverability of the nozzles 8 in a narrow place by rotating the nozzles 8 so that the arrangement direction of the nozzles matches the direction of the grooves G.

In the correspondence between the above embodiment and the claims,
The terminal pin P1 connects the bobbin winding start end holding portion to the arbor A1.
Denotes a bobbin support, the nozzle moving mechanism 10 and the nozzle swiveling mechanisms 20 and 80 constitute nozzle revolving movement generating means, and the nozzle rotation mechanism 90 constitutes nozzle rotating movement generating means. The winding start end holding portion of the wire is not limited to the terminal pin, and may be of any type as long as it can hold the winding start end of the wire such as a protrusion or a groove. The revolving motion of the nozzle is not limited to the circular orbit, but various changes such as an elliptical orbit and a rectangular orbit can be made as long as the motion revolves around the bobbin. Even when a plurality of wires are wound at the same time, the number is not limited to two.

[0036]

As described above, according to the winding method of the present invention, when the wire drawn from the winding start end holding portion of the bobbin is bent in the circumferential direction of the bobbin, the wire is coil-pressed onto the bobbin. The wire is bent to prevent it from deforming, and at the same time the nozzle is positioned closer to the free end of the bobbin than the coil press to avoid interference between the nozzle or wire and the coil press or bobbin. It is possible to improve the work efficiency by easily mechanizing the right-angle insertion work that had to rely on it. In the method of the second aspect, since the right angle insertion is performed by the revolution movement of the nozzle, it is not necessary to rotate the coil pressing side, and the structure of the coil pressing side is simplified, and the mechanization of the right angle insertion can be realized more easily. According to the method of claim 3, since the same surface of the nozzle is always opposed to the bobbin to prevent the twisting of the wire rod when the nozzle revolves, the right-angle insertion of a plurality of wire rods in an aligned state is mechanized to increase work efficiency. Can be improved.

Further, according to the winding apparatus of the present invention, the winding method of the present invention can be mechanized to efficiently perform the winding work involving right-angle insertion. According to the apparatus of claim 5, it is possible to efficiently carry out the winding work of a plurality of wire rods, which involves inserting at right angles.

[Brief description of drawings]

FIG. 1 is a diagram showing a processing procedure for right-angle insertion in a first embodiment of the present invention.

FIG. 2 is a perspective view showing a processing procedure for right angle insertion in the first embodiment of the present invention.

FIG. 3 is a front view of the winding machine according to the first embodiment of the present invention.

FIG. 4 is a right side view of the winding machine according to the first embodiment.

5 is an enlarged view of a V portion of FIG.

FIG. 6 is an enlarged view of a VI portion of FIG.

FIG. 7 is an enlarged view of part VII of FIG.

FIG. 8 is an enlarged view of part VIII in FIG.

9 is an enlarged view of the IX portion in FIG. 7.

FIG. 10 is a perspective view showing a processing procedure of right angle insertion in the second embodiment of the present invention.

FIG. 11 is a view showing the positional relationship between the bobbin and the nozzle when inserting at a right angle in the second embodiment of the present invention, as viewed from the axial direction of the bobbin.

FIG. 12 is a view showing a state around the nozzle of the winding machine of the second embodiment of the present invention as viewed from the front side of the winding machine.

FIG. 13 is an enlarged view of a portion XIII in FIG.

14 is a sectional view taken along line XIV-XIV in FIG.

FIG. 15 is a view showing an example of a entanglement treatment and a grooving treatment by the winding machine of the second embodiment of the present invention, (a) showing a state in which the bobbin is viewed from the direction along the terminal pin,
FIG. 6B is a diagram showing a state in which the bobbin is viewed from the XVb direction in FIG.

FIG. 16 is a diagram showing a winding procedure by a conventional winding machine.

FIG. 17 is a view showing the winding procedure of FIG. 16 viewed from the direction of arrow XVII in the same figure.

FIG. 18 is a diagram for explaining a conventional problem.

FIG. 19 is a diagram showing a conventional procedure for winding a plurality of wires at the same time.

FIG. 20 is a diagram for explaining a problem caused by the procedure of FIG.

[Explanation of symbols]

 2 Spindle 3,8 Nozzle 10 Nozzle moving mechanism 20,80 Nozzle swivel mechanism 63 Coil holding unit 64 Adapter moving mechanism 90 Nozzle rotation mechanism 634 Coil holding

Claims (5)

[Claims] 1. A wire rod fed from a nozzle is attached to a winding start end holding portion provided at one axial end of a bobbin,
In the winding method of the coil, the wire rod is drawn to a center side in the axial direction of the bobbin for a certain length and then bent in the circumferential direction of the bobbin to start winding by relative rotation between the bobbin and the nozzle. A coil retainer that is cantilevered so that the winding start end holding portion side is a fixed end side and that the wire rod attached to the winding start end holding portion is pulled out to the free end side of the bobbin while contacting the bobbin. A coil winding method, comprising: pressing a wire drawn out by the above method onto the bobbin, and then bending the wire ahead from the pressing position in the circumferential direction of the bobbin by relative rotation of the nozzle and the bobbin. 2. The coil winding method according to claim 1, wherein the winding until the wire rod reaches a certain number of turns after the wire rod is pressed onto the bobbin is located at a position where the wire rod is pressed by the coil presser. The method of winding a coil is characterized in that the nozzle disposed on the free end side of the coil is revolved around the bobbin. 3. The coil winding method according to claim 2, wherein a plurality of wires are inserted into the nozzle in parallel, and when the nozzle revolves around the bobbin, the same surface of the nozzle is the same. A method of winding a coil, wherein the nozzle is rotated at the same cycle as the revolution cycle of the nozzle so as to always face the bobbin. 4. The wire rod fed from the nozzle by the relative movement of the nozzle and the bobbin is attached to a winding start end holding portion provided on one end side in the axial direction of the bobbin, and the relative rotation of the nozzle and the bobbin is performed. In a winding device for winding a wire drawn from the winding start end holding portion on the bobbin, a bobbin support capable of supporting the bobbin in a cantilever manner such that the winding start end holding portion side is a fixed end side. A coil retainer capable of pressing the wire rod drawn out from the winding start end holding portion onto the bobbin, and a state in which the nozzle is located closer to the free end side of the bobbin than the pressing position of the wire rod by the coil retainer,
Nozzle revolving motion generating means for revolving the nozzle around the bobbin. 5. The winding device according to claim 4, wherein the nozzle is provided so that a plurality of wire rods can be inserted in parallel, and when the nozzle revolves around the bobbin by the nozzle revolving motion generating means. A winding device is provided which includes a nozzle rotation motion generating means for rotating the nozzle in the same cycle as the revolution cycle of the nozzle so that the same surface of the nozzle always faces the bobbin.