JP4805239B2 - Winding method and winding device - Google Patents

Description

  The present invention relates to a winding method and a winding device, and more particularly to a winding method and a winding device for aligning and winding a wire having a square cross section with respect to a winding frame.

  In general, a stator core of a rotating electrical machine includes a laminated steel plate having an arc-shaped yoke portion and a pole portion extending from the yoke portion, and a conductive wire is wound around the pole portion via an insulating member. It is comprised so that.

  Patent Document 1 discloses a winding device that winds automatically by precisely aligning conductive wires on a portion to be wound, for example, a magnetic core. That is, in the winding device of Patent Document 1, large, medium, and small boxes are attached to the ball screw, and the position of the box is manipulated by rotating the ball screw, thereby restricting the winding part of the conducting wire. (See paragraph [0036] in Patent Document 1).

  More specifically, in the winding process, the wire supply reel revolves around the reel by rotation of the arm, and the wire supply reel rotates in the same direction as the revolution direction. A wire is wound around the reel. The arm makes one turn and the row of wires is changed at a position on the winding frame, and the large, medium, and small boxes move in one direction to determine the winding position on the winding progression side.

  That is, when winding and laminating a wire on a winding frame, it is necessary to define the position of the winding with large, medium, and small boxes.

JP 11-312621 A

  Incidentally, the winding device described in Patent Document 1 has the following difficulties. That is, in order to wind the windings in alignment on the winding frame, large, medium and small boxes must be provided on both sides of the winding frame to define the winding progression side of the winding position. The size of the entire device must be increased. Moreover, the winding has a rectangular cross section, that is, when a flat wire is to be wound around the winding frame, the winding shape is flat, so that slip occurs during winding, and the flat wire is aligned. Is difficult to wind on a reel.

  Furthermore, the large, medium, and small boxes are configured separately from the winding supply reel, and the weight is considerably heavy, so that the rotation speed of the arm is increased in order to improve the productivity of the winding. In such a case, there is a problem that it is not possible to follow the increase in speed.

  The present invention has been made in consideration of such a problem, and even if the winding is a flat wire, it can be easily aligned and wound around the winding frame without causing slippage, and is small and lightweight. An object of the present invention is to provide a winding method and a winding apparatus that can be achieved and can improve productivity.

In a winding method in which a flat rectangular wire to be supplied is led out from a nozzle of a nozzle device and aligned and wound in a winding frame,
A first step of contacting the one flange of the winding frame and winding the conductive wire around the winding frame;
A second step in which the nozzle is moved along the axial direction of the reel, and the nozzle is tilted in one direction in the meantime to wind the conductive wire around the reel while being inclined in the same direction as the tilt direction of the nozzle. When,
The nozzle is swung perpendicularly to the axial direction for each rotation of the winding frame in the second step, and the conductive wire is already wound on the side surface of the conductive wire wound around the winding frame. A third step of moving the nozzle so as to abut after separation,
After conducting the second and third steps a plurality of times, when the conducting wire is wound on the winding frame in contact with the other flange of the winding frame, the nozzle is inclined in the other direction, A fourth step of winding the lead wire around the reel in the direction opposite to the second step along the axial direction of the reel while inclining the conducting wire in the same direction as the other direction of the nozzle;
The nozzle is swung perpendicularly to the axial direction for each rotation of the winding frame in the fourth step, and the conductive wire is already wound around the winding frame with respect to the side surface of the conductive wire. A fifth step of moving the nozzle so as to abut after separation,
When the conducting wire comes into contact with one flange of the winding frame through the fifth step, the conducting wire is laminated and wound around the winding frame again by performing the second to fifth steps. .

Furthermore, the present invention is a winding device for laminating and winding a conducting wire on a winding frame, and the winding device includes:
A reel holding jig for gripping the reel in a rotatable and detachable manner;
A conductor guide device for guiding and supplying a rectangular conductor to the winding frame;
A nozzle device provided between the reel gripping jig and a conductor guide device for feeding the conductor to the reel;
The conductor guide device includes a mechanism for displacing the nozzle device corresponding to a position where the conductor is wound around the winding frame,
The nozzle device has a nozzle rotating means for rotating a nozzle for leading a conductive wire, a nozzle swinging means for swinging the nozzle so as to be orthogonal to the axial direction thereof,
It is characterized by providing.

  According to the present invention, the mechanism for aligning and stacking the rectangular windings on the winding frame is simplified, and the nozzle device and the wire guide device can sufficiently follow even if the winding frame holding jig is rotated at high speed. Production efficiency is significantly improved. Furthermore, compared with the prior art, the structure itself can be miniaturized and a space saving effect can be obtained.

  FIG. 1 is a schematic perspective explanatory view of a stator core manufacturing apparatus 10 incorporating a winding device according to an embodiment of the present invention, and FIG. 2 is a schematic plan explanatory view of the stator core manufacturing apparatus 10.

  A plurality of stator cores 12 manufactured by the stator core manufacturing apparatus 10 are arranged in an annular shape to constitute a stator of a rotating electrical machine. As shown in FIG. 3, the stator core 12 includes a laminated steel plate (core) 14 obtained by caulking and integrating a plurality of substantially T-shaped steel plates punched by a press, insulators 16 and 18 that insulate the laminated steel plate 14, and It has a conducting wire (coil) 20 wound around the laminated steel plate 14 via the insulators 16 and 18, and metal terminals (electrodes) 22 and 24.

  The laminated steel sheet 14 includes an arc-shaped yoke portion 26 and a pole portion 28 that extends radially inward from the yoke portion 26. The yoke portion 26 includes an arcuate outer wall surface 26a radially outward. A substantially semicircular convex portion 32 is formed at one circumferential end of the yoke portion 26, and the convex portion 32 of the adjacent yoke portion 26 is fitted to the other circumferential end of the yoke portion 26. A concavity 34 is formed.

  The insulators 16 and 18 are made of, for example, PPS (polyphenylene sulfide), and have a pair of winding portions 36 and 38 around which the conducting wire 20 is wound. The insulators 16 and 18 are overlapped and joined so that a part thereof is fitted, and the set of winding portions 36 and 38 is formed as a winding frame 30, and the insulators 16 and 18 are used to form the laminated steel plate 14. The conductive wire 20 is electrically insulated.

  As described above, when the insulators 16 and 18 are fitted and integrated with each other, as shown in FIG. 3, a series of first flanges 25 and second flanges 27 are formed on the stator core 12. As can be easily understood from FIG. 3, the second flange 27 is configured to be larger than the first flange 25 in plan view.

  As shown in FIG. 4, the winding start end portion 20 a of the conducting wire 20 is crimped and cut to the terminal 22 and fixed to the terminal 22, and the winding end end portion 20 b of the conducting wire 20 is crimped to the terminal 24. It is cut and fixed to the terminal 24.

  As shown in FIGS. 1 and 2, the stator core manufacturing apparatus 10 causes an assembly part (hereinafter also simply referred to as “laminated steel plate 14”) of the laminated steel plate 14 and the insulators 16 and 18 to be gripped by a reel holding jig 44 described later. At the same time, an attachment / detachment station ST1 for removing the wound stator core 12 from the reel gripping jig 44, a winding station ST2 for winding the conductor wire 20 around the pole portion 28 of the laminated steel sheet 14 to form a winding, An end forming station ST3 for moving and positioning the winding start end 20a and the winding end end 20b of the conducting wire 20 wound around the laminated steel sheet 14 in correspondence with the terminals 22 and 24, and the winding start end. 20a and the winding end portion 20b are connected to the terminals 22 and 24 by caulking, and an excessive end portion of the conductor 20 is cut. And a end connection station ST4 that.

  In the stator core manufacturing apparatus 10, the attaching / detaching station ST1, the winding station ST2, the end forming station ST3, and the end connecting station ST4 are concentrically spaced apart by a predetermined angular interval, for example, by equiangular intervals (90 ° intervals). Provided.

  As shown in FIG. 5, the stator core manufacturing apparatus 10 includes four winding frame arrangement parts for arranging the laminated steel plates 14 corresponding to the attachment / detachment station ST1, the winding station ST2, the end part forming station ST3, and the end part connection station ST4. A table 42 having 40 is provided.

  The reel arrangement portions 40 are provided with a 90 ° interval, and a reel gripping jig 44 is attached to each reel arrangement portion 40. On the table 42, each reel holding jig 44 is sequentially arranged corresponding to the attaching / detaching station ST1, the winding station ST2, the end forming station ST3, and the end connecting station ST4, and the table 42 is moved up and down. A table elevating means 48 is provided. The index means 46 includes a motor that rotates the table 42 by 90 ° in the direction of arrow A, while the table elevating means 48 includes a cylinder that moves the table 42 back and forth (up and down) in the direction of arrow B (see FIG. 5). In the figure, reference numeral 47 indicates a caulking / cutting device provided in the vicinity of the end connection station ST4, and reference numeral 49 indicates a fixing means for fixing the reel 44 or releasing its positioning. The fixing means for a reel holding jig is shown.

  Therefore, in the present embodiment, a conductor guide device 50 is provided for approaching the table 42 and supplying the conductor 20 to the stator core 12. The wire guide device 50 includes a top plate 52 having a height corresponding to the table 42. The top plate 52 is provided with a pair of rails 54, 54, and a nozzle device 56 is provided along the rails 54, 54 so as to be movable back and forth with respect to the table 42. The nozzle device 56 includes an X-axis direction moving mechanism 58, a Y-axis direction moving mechanism 60, and a Z-axis direction moving mechanism 62 provided between the rails 54 and 54. That is, the X-axis direction moving mechanism 58, the Y-axis direction moving mechanism 60, and the Z-axis direction moving mechanism 62 constitute an orthogonal robot 64. The X-axis direction moving mechanism 58, the Y-axis direction moving mechanism 60, and the Z-axis direction moving mechanism 62 preferably employ a driving mechanism according to the prior art including a rotational drive source and a ball screw. In this case, the nozzle unit 70 is attached to a nut that is screwed into a ball screw (not shown) of the Z-axis direction moving mechanism 62.

  6A to 6C show a specific configuration of the nozzle unit 70. FIG. The nozzle portion 70 is made of a relatively thick metallic member and has a deformed hexagonal base 72, and the base 72 is formed with a relatively large diameter perfect circular hole 74. . A disk 76 is rotatably fitted in the hole 74, and an elliptical hole 77 is formed in the disk 76. A first linear actuator, for example, a first cylinder 78 is fixed to one side surface of the base 72 below the disk 76, and a cylinder rod 80 extends upward in the figure from the first cylinder 78. (See FIG. 6C). The tip of the cylinder rod 80 branches into a U-shape to form a pivotal support portion 82.

  On the other hand, a first support plate 84a and a second support plate 84b, which are spaced apart from each other by a predetermined distance and extend in parallel, are fixed to the disk 76, and as shown in FIG. A protrusion 86 having a hole (not shown) formed in the portion protrudes between the pivotal support portions 82. A shaft 88 penetrates from the pivot 82 to the protrusion 86.

  Next, a support base 90 is provided between the first support plates 84a and 84b, and a second linear actuator, for example, a second cylinder 92 is provided on the support base 90. The cylinder rod 94 of the second cylinder 92, like the first cylinder 78, has its tip portion branched in a U-shape to form a pivot portion 96. One end of a rod 100 having a quadrangular cross section is rotatably connected to a shaft 98 bridged by the pivotal support portion 96, and the rod 100 bends in the middle and passes through a hole 77 formed in the disk 76. To do. The rod 100 is pivotally supported by the shaft 106 bridged between the first support plate 84a and the second support plate 84b immediately before passing through the hole 77 so as to swing perpendicularly to the axis. . In addition, in FIG. 6A to FIG. 6C, the rod 100 is formed with a lead insertion hole 108 penetrating in the horizontal direction. Here, in FIGS. 6A to 6C, reference numeral 104 indicates a nozzle at the tip of the rod 100, and a conductive wire 20 to which a predetermined tension is applied by a tension applying device (not shown) is passed through the hole 108. Is derived.

  The winding device according to the present embodiment is basically configured as described above, and the operation thereof will be described below in relation to the winding method.

  As shown in FIG. 2, in the reel arrangement part 40 of the table 42 arranged corresponding to the attachment / detachment station ST <b> 1, the reel 30 constituted by the insulators 16 and 18 is held by the reel holding jig 44. . The reel 30 thus gripped by the reel gripping jig 44 is then rotated 90 ° in FIG. 1 clockwise under the driving action of the index means 46 and reaches the winding station ST2. In this winding station ST2, the conducting wire 20 is fed out from the nozzle 104 constituting the nozzle device 56, and the reel 30 rotates integrally with the reel gripping jig 44 under the rotating action of a rotary drive source (not shown). Therefore, the conducting wire 20 is wound around the winding frame 30. Details will be described later.

  When the conducting wire 20 is wound around the winding frame 30, the index means 46 rotates the table 42 again by 90 ° clockwise, and the winding frame 30 held by the winding frame holding jig 44 becomes the end forming station. Reach ST3. At the end molding station ST3, molding for locking the lead wire 20 to the terminal 22 and the terminal 24 is performed.

  Again, the table 42 rotates 90 ° clockwise under the driving action of the index means 46, and the reel 30 around which the conducting wire 20 is wound reaches the end connection station ST4. In the end connection station ST4, a caulking / cutting device 47 is disposed close to the position. Therefore, in the caulking / cutting device 47, the winding start end 20a and the winding end end 20b of the conducting wire 20 are caulked to the terminal 22 and the terminal 24, respectively, via caulking means (not shown), and then a cutter (not shown) Is driven to cut the winding start end 20a and the winding end 20b. That is, after the conducting wire 20 is wound around the winding frame 30, the winding start end portion 20a and the winding end end portion 20b are engaged with the terminals 22 and 24, respectively. After such processing, the index means 46 is driven again, the table 42 rotates 90 ° clockwise, and the winding frame 30 around which the conducting wire 20 is wound reaches the attachment / detachment station ST1. Therefore, the reel holding jig 44 is deenergized, and the reel 30 around which the conducting wire 20 is wound is taken out.

  Therefore, the operation of the nozzle device 56 according to the present embodiment will be described in detail below with reference to FIGS. 6A to 6C. First, in the winding station ST <b> 2, the conducting wire 20 is inserted into a hole portion 108 formed in the rod 100 through a tension applying device (not shown), and a tip portion thereof is led out from the nozzle 104. In this case, the leading end portion of the conducting wire 20 is composed of an appropriate locking mechanism (for example, a roller that generates friction with the conducting wire, a brake mechanism that suppresses rotation of the roller, a spring, etc., and removes slack in the conducting wire. To be held under a predetermined tension. Next, the reel 30 positioned by the reel gripping jig 44 is rotated under the driving action of the rotary drive source 49 incorporated in the reel gripping jig fixing means shown in FIG. Then, the conducting wire 20 starts to be wound.

  7A to 7K schematically explain the operation of the nozzle device 56 when the conducting wire 20 is wound around the winding frame 30. FIG. In the present embodiment, in particular, the conducting wire 20 has a square cross section, that is, a rectangular wire. Therefore, the short side surface of the conducting wire 20 led out from the nozzle 104 is first brought into contact with the first flange 25 of the winding frame 30. This is shown in FIG. 7A. In this state, the reel 30 rotates 180 ° under the rotating action of the reel gripping jig 44 (see FIG. 7B).

Further, when the reel 30 continues to rotate, in FIG. 1, the nozzle 104 is lowered by the width of one conducting wire by the Z-axis direction moving mechanism 62, and the first cylinder 78 is energized to move the cylinder. The rod 80 extends upward, whereby the pivot 82 pushes up the protrusion 86 in FIG. 6C, resulting in the disk 76 rotating in the direction of arrow C. Thereby, as shown in FIG. 7C, the nozzle 104 causes the flat conducting wire 20 to be separated from the first flange 25 and inclined toward the first flange 25. Thus, while maintaining the state in which the conducting wire 20 is inclined (see FIG. 7D), the winding frame 30 is further rotated by 90 ° to bring the conducting wire 20 into contact with the winding frame 30. Therefore, the corner of the conducting wire 20 slides on the reel 30, and reaches the position adjacent to the part where the conducting wire 20 is first wound (see FIG. 7E). Therefore, this time, the second cylinder 92 is energized. In this case, the cylinder rod 94 of the second cylinder 92 extends, and the rod 100 rotates in the direction of arrow F in FIG. 6A with the shaft portion as the center of rotation, whereby the nozzle 104 is orthogonal to the axis line in the direction of arrow G. It will swing. As a result, the conducting wire 20 rises and approaches the already wound conducting wire 20. Furthermore, when the winding frame 30 continues to rotate by 270 °, a part of the flat rectangular conductive wire 20 tends to ride on the conductive wire 20 already wound on the winding frame 30 (see FIG. 7F). At this time, since the flat conductive wire maintains the inclined state, the contact with the surface of the inclined conductive wire slides against the already wound conductive wire and sits on the reel. It arrives. At this time, when the Z-axis direction moving mechanism 62 is energized again to lower the nozzle 104, the nozzle 104 traverses the conductor 20 by one conductor width as shown in FIG. 7G and the action of the second cylinder. The nozzle is swung downward in the direction of arrow H and operated so as to be pulled in an oblique direction, and is separated from the already wound conductor. In this state, the reel 30 is further rotated by 90 ° (see FIG. 7H). Then, the same state as in FIG. 7E is reached. Therefore, the nozzle 104 is again swung in the direction of the arrow G under the urging action of the second cylinder 92 (FIG. 7I), and the operations of FIGS. 7F to 7I are repeated.

  When the conductive wire 20 reaches the second flange 27 of the winding frame 30, the first cylinder 78 is urged again, and the second cylinder 92 is also urged, and the cylinder rod 94 performs an extending operation. As a result, as shown in FIG. 7K, the nozzle 104 is inclined in the opposite direction to the previous one, and then the operation after FIG. 7C is performed in the opposite direction.

  As described above, for example, when the conducting wire 20 is wound about three layers around the winding frame 30, the Z-axis direction moving mechanism 62 is biased. As a result, the tip of the nozzle 104 descends with respect to the winding frame 30, and the winding start end of the next conductor 20 is below the initial position. That is, by repeating this operation and gradually approaching the second flange 27 side, if the number of laminated conductors 20 is increased, a stator core winding structure as shown in FIG. 4 can be obtained.

  According to the present embodiment, as described above, the nozzle device 56 for supplying a conducting wire is rotated and swings in a direction perpendicular to the axis of the nozzle. As a result, the conductor 20 can be connected to the winding frame 30 with a simple configuration without requiring the large, medium, and small boxes used in the prior art, and particularly preferably a flat wire. Can be wound. Moreover, a unique effect is obtained that the alignment state is beautiful and the production efficiency is increased.

  Further, by rotating the nozzle and inclining the conducting wire, the conducting wire to be wound further on the already wound conducting wire can be aligned and seated on the winding frame without riding up.

  Furthermore, the nozzle is swung by the second cylinder, and after winding away from the side surface of the already wound conductor, the operation approaching the conductor is separated from the traverse operation, so that high-speed winding processing is performed. Can be realized.

It is an outline perspective explanatory view of a stator core manufacturing device incorporating a winding device concerning an embodiment of the present invention. It is a schematic plan view of the stator core manufacturing apparatus. It is a disassembled perspective explanatory drawing of a winding frame. It is a perspective explanatory view in the state where the flat wire was wound around the winding frame. It is explanatory drawing of the table which comprises the said stator core manufacturing apparatus. FIG. 6A is a perspective view illustrating a state in which the nozzle portion for supplying a conducting wire is displaced in a direction orthogonal to the axial direction of the nozzle, and FIG. 6B is a nozzle portion for supplying the conducting wire, and the nozzle is rotated. FIG. 6C is a perspective view illustrating a state where the nozzle tip is rotated in a direction perpendicular to the axial direction of the nozzle, and FIG. FIG. FIG. 7A is an operation explanatory diagram of the first state in which the conducting wire is wound while displacing the Z-axis direction moving mechanism and the nozzle with respect to the reel, and FIG. 7B is the Z-axis direction moving mechanism and the nozzle with respect to the reel. FIG. 7C is a diagram illustrating the operation of the third state in which the conducting wire is wound while displacing the Z-axis direction moving mechanism and the nozzle with respect to the winding frame. 7D is an operation explanatory diagram of the fourth state in which the conducting wire is wound while displacing the Z-axis direction moving mechanism and the nozzle with respect to the reel, and FIG. 7E is a Z-axis direction moving mechanism with respect to the reel. FIG. 7F is a diagram for explaining the operation of the fifth state in which the conducting wire is wound while displacing the nozzle, and FIG. FIG. 7G is an operation explanatory diagram, in which the Z-axis direction moving mechanism and the nozzle are displaced with respect to the reel. FIG. 7H is an operation explanatory diagram of the eighth state in which the conductor is wound while displacing the Z-axis direction moving mechanism and the nozzle with respect to the reel. 7I is an operation explanatory diagram of the ninth state in which the lead wire is wound while displacing the Z-axis direction moving mechanism and the nozzle with respect to the reel, and FIG. 7J is a diagram illustrating the Z-axis direction moving mechanism and the nozzle with respect to the reel. FIG. 7K is an operation explanatory diagram of the eleventh state in which the conductive wire is wound while displacing the Z-axis direction moving mechanism and the nozzle with respect to the winding frame. It is.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Stator core manufacturing apparatus 12 ... Stator core 22, 24 ... Terminal 26 ... Yoke part 28 ... Pole part 30 ... Reel 36, 38 ... Winding part 42 ... Table 44 ... Reel holding jig 50 ... Conductor guide apparatus 70 ... Nozzle Part 72: Base 76 ... Disc 78, 92 ... Cylinder 84a, 84b ... Support plate

Claims (2)

A winding method in which a supplied flat rectangular wire is led out from a nozzle of a nozzle device, and is wound and laminated in alignment with a winding frame in which a first flange is connected to one end and a second flange is connected to the other end. In
A first step of contacting the first flange of the winding frame and winding the conductive wire around the winding frame;
Along the axial direction of the spool is moved towards the nozzle to the second flange side, and by the end of the first flange toward the nozzle be angled such as by the winding frame side therebetween the wire is inclined in the inclination in the same direction as the direction of the nozzle, the winding frame or already abut conductor lines corners of the conductor on the upper surface of the conductor being wound around the winding frame to the winding frame A second step of winding;
In each second turn of the winding frame in the second step, the nozzle is moved in the axial direction of the nozzle so that the conducting wire is separated from the side surface of the conducting wire already wound on the winding frame. the rocked in a first direction perpendicular against, comprising the nozzle such that the wire after the spaced contact already skilled in relative sides of the conductive wire being wound on the winding frame to the first direction and the opposite direction A third step of swinging in two directions ;
The second and after that engaged a third plurality of times a step, when the conductive wire is wound in contact with the winding frame to the second flange of said spool, said second flange near the end of the nozzle The conductor is inclined in the same direction as the inclination direction of the nozzle by inclining the part so as to be closer to the reel side, and the corner portion of the conductor is formed on the upper surface of the conductor already wound on the reel. A fourth step of abutting and moving the conductive wire toward the first flange side along the axial direction of the winding frame and winding the winding wire around the winding frame;
The nozzle is moved in the axial direction of the nozzle so that the conducting wire is separated from the side surface of the conducting wire already wound on the winding frame every winding of the winding frame in the fourth step. the is the second is swung in the direction of oscillating the nozzle so that the conductive wire after the spaced contact already skilled in relative sides of the conductive wire being wound on the winding frame to the first direction perpendicular against 5 steps,
When the conducting wire abuts on the first flange of the winding frame through the fifth step, the conducting wire is laminated and wound around the winding frame again by performing the second to fifth steps. Winding method to do. A winding device for winding a conductive wire on a winding frame in which a first flange is connected to one end and a second flange is connected to the other end .
A reel holding jig for gripping the reel in a rotatable and detachable manner;
A conductor guide device for guiding and supplying a rectangular conductor to the winding frame;
A nozzle device provided between the reel gripping jig and a conductor guide device for feeding the conductor to the reel;
The conductor guide device includes a mechanism for displacing the nozzle device corresponding to a position where the conductor is wound around the winding frame,
In the nozzle device , an end portion near the first flange of the nozzle that guides the conductive wire when the nozzle device is displaced from the first flange toward the second flange along the axial direction of the reel is on the reel side. The nozzle is rotated so that the end of the nozzle is closer to the second flange when the nozzle is displaced from the second flange toward the first flange along the axial direction of the winding frame. Nozzle rotating means for rotating the nozzle so as to approach the frame side ;
In the rotating state of the nozzle by the nozzle rotating means, the conductive wire is separated from the side surface of the conductive wire already wound around the winding frame every time the conductive wire is wound around the winding frame. The nozzle is swung in a first direction perpendicular to the axial direction of the nozzle, and after the separation, the nozzle is moved so as to abut against a side surface of the conductor already wound on the winding frame. Nozzle swinging means for swinging in a second direction opposite to the first direction ;
A winding device comprising:

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