JP2007209150A - Winding apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate wire exchange work by preventing twisting of a wire and to suppress hardening of the wire. <P>SOLUTION: A planetary gear 9 is fixed on the axis of a flyer drum 3, an inner gear 10 and an outer gear 11 are relatively rotatably provided on the same axis, allowing the planetary gear 9 to mesh with the inner teeth 11a of the inner gear 10 and the outer gear 11, also an outer rotating gear 14 to mesh with the outer teeth 11a of the outer gear 11. The outer gear 11 is rotated by rotating the outer rotating gear 14, the planetary gear 9, while being rotated, is circulated around the inner gear 10 and the flyer drum 3, while being rotated, is revolved relative to a winding frame 1, and the wire 2, while being wound around the flyer drum 3, is wound around a winding frame 1 to wind an odd-number-th coil. The outer rotating gear 14 and the inner gear 10 are simultaneously rotated to rotate the inner gear 10 and the outer gear 11 simultaneously to revolve the flyer drum 3 relative to the winding frame 1 without rotating the flyer drum 3, allowing the wire 2 to be wound around the winding frame 1 to wind the odd-number-th coil while unwinding the wire 2 wound around the flyer drum 3. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a winding device for winding a plurality of wires supplied from a flyer around a winding frame by rotating the flyer around the winding frame.

  Conventionally, a vertical winding machine is used to wind several wires around a winding frame. In a conventional winding machine, when a wire group in which a plurality of wires are arranged in a band shape is wound around a winding frame, the wire in the winding may be wound in a twisted state. When the wire is twisted in this way, there is a problem that the thickness in the radial direction of the winding increases by the amount of the twist.

  Therefore, a winding machine proposed to prevent twisting of the wire in the winding is described in Patent Document 1 below. In this winding machine, a plurality of wires supplied from a flyer through a tension nozzle are wound around a winding frame. In this winding machine, a dummy drum having a circumference equivalent to the circumference of the winding frame is provided rotatably. A dummy flyer for winding the wire around the dummy drum is provided integrally with the flyer. Then, while moving the tension nozzle upward and the dummy drum downward at the same speed in synchronization with the rotation of the flyer and the dummy flyer, the wire is wound around the winding frame and the dummy drum at the same time, and the wire wound around the dummy drum The wire is rewound and wound around the reel to prevent twisting of the wire.

JP-A-11-98779

  However, in the winding machine described in Patent Document 1, since the wire supply path is refracted in a complicated manner, it takes a longer time than necessary to replace the wire in the equipment path due to replacement of the winding frame or wire breakage. It was. For this reason, there was a concern that the operating rate of the production line including the winding machine would be reduced.

  Also, since the number of refractions of the wire supply path is relatively large, the wire tends to harden and the winding tends to be bulky. For this reason, when the stator coil is manufactured by assembling the winding wire to the stator, the end shape of the stator coil tends to increase due to the bulk of the winding wire.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a winding device capable of preventing twisting of a wire, facilitating wire replacement work, and suppressing the hardening of the wire. It is to provide.

  In order to achieve the above object, the invention according to claim 1 is a winding device for winding a plurality of wires supplied from a flyer around the reel by rotating the flyer around the reel. The flyer is a flyer drum having a cylindrical shape. A planetary gear is fixed on the shaft of the flyer drum, the inner ring gear and the outer ring gear are coaxially rotatable, and the outer ring gear has inner teeth on the inner periphery. The outer ring gear is engaged with the inner ring gear and the inner teeth of the outer ring gear. By rotating around the inner ring gear while rotating the planetary gear, the flyer drum revolves around the reel while rotating, and the wire is wound around the flyer drum while being wound around the reel. By winding the eye coil and rotating the outer ring gear and the inner ring gear at the same time, the inner ring gear and the outer ring gear are rotated at the same time so that the flyer drum revolves around the winding frame without rotating, and the wire wound around the flyer drum The purpose is that the even-numbered coil is wound by winding the unwound wire around the winding frame while solving the above.

  According to the configuration of the above invention, when winding the odd-numbered coil, the outer ring rotating gear is rotated. As a result, the outer ring gear is rotated to rotate around the inner ring gear while rotating the planetary gear so that the flyer drum revolves around the reel while rotating, and the wire is wound around the flyer drum while the wire is wound around the flyer drum. Wrapped. When winding the even-numbered coil, the outer ring rotating gear and the inner ring gear are simultaneously rotated. As a result, the inner ring gear and the outer ring gear are rotated at the same time so as to revolve with respect to the winding frame without rotating the flyer drum, and the unwound wire is wound around the winding frame while unwinding the wire wound around the flyer drum. Therefore, the wire only needs to be refracted by the flyer drum. Further, since the flyer drum revolves around the winding frame, the wire is wound around the winding frame without being twisted.

  To achieve the above object, according to a second aspect of the present invention, in the first aspect of the present invention, a motor for rotationally driving the outer ring rotating gear is provided, and the outer ring gear is controlled by controlling the rotation of the motor. The purpose of this is to make the amount of rotation and the amount of rotation of the flyer drum variable.

  According to the configuration of the invention described above, in addition to the operation of the invention described in claim 1, since the rotation amount of the outer ring gear and the rotation amount of the flyer drum are controlled, the tension of the wire wound around the winding frame is adjusted.

  According to the first aspect of the present invention, twisting of the wire can be prevented, wire replacement work can be facilitated, and hardening of the wire can be suppressed.

  According to the second aspect of the present invention, in addition to the effect of the first aspect of the invention, the wire tension can always be made uniform, and the connecting wire length between a plurality of continuous coils can be changed. it can.

  Hereinafter, an embodiment embodying a winding device of the present invention will be described in detail with reference to the drawings. In FIG. 1, the principal part of the winding apparatus of this embodiment is partly broken and shown in a front view. In this winding device, a plurality of wires 2 supplied from the flyer drum 3 by rotating a flyer drum 3 as a flyer for supplying a plurality of wires 2 to the winding frame 1 around the winding frame 1. Is wound around the reel 1.

  The flyer drum 3 has a cylindrical shape, and the wire 2 is wound around the outer periphery thereof. In the vicinity of the fryer drum 3, a fryer inlet nozzle 4 and a fryer outlet nozzle 5 are arranged. The nozzles 4 and 5 each have a ring shape and are provided so as to reciprocate on the vertically extending guide rods 6 and 7. Then, a plurality of wires 2 are led from the fryer inlet nozzle 4 to the fryer drum 3, and the wires 2 passing through the fryer drum 3 are led to the winding frame 1 through the fryer outlet nozzle 5. The plurality of wires 2 are guided to a fryer inlet nozzle 4 from a wire supply holder (not shown). The nozzles 4 and 5 on the guide rods 6 and 7 are movable in accordance with changes in the drawing position and the drawing position of the wire 2 with respect to the drum 3 which is changed by winding the wire 2 around the flyer drum 3. .

  A planetary gear 9 is fixed on a shaft 8 common to the flyer drum 3. Corresponding to the planetary gear 9, an inner ring gear 10 and an outer ring gear 11 are provided coaxially and relatively rotatable. That is, the outer ring gear 11 has a bottomed cylindrical shape and has a larger diameter than the inner ring gear 10. The inner ring gear 10 is arranged at the inner center of the outer ring gear 11. The inner ring gear 10 and the outer ring gear 11 are supported by a frame 12. An inner ring rotating motor 13 for rotationally driving the inner ring gear 10 is fixed to the frame 12, and a rotating shaft 13 a is disposed downward through the frame 12. The inner ring gear 10 is fixed to the lower end of the rotary shaft 13a. The outer ring gear 11 is provided on the rotating shaft 13a so as to be relatively rotatable. The outer ring gear 11 has inner teeth 11a on its inner periphery and outer teeth 11b on its outer periphery. The planetary gear 9 is disposed between the inner ring gear 10 and the outer ring gear 11, and meshes with the inner teeth 11 a of the inner ring gear 10 and the outer ring gear 11. The reel 1 is disposed directly below the inner ring gear 10. The reel 1 and the guide rod 7 are provided so as to be movable up and down integrally by an actuator (not shown).

  An outer ring rotating gear 14 for rotating the outer ring gear 11 is provided outside the outer ring gear 11. An outer ring rotating motor 15 for rotating the outer ring rotating gear 14 is fixed to the frame 12, and a rotating shaft 15 a is disposed downward through the frame 12. The outer ring rotating gear 14 is fixed to the lower end of the rotating shaft 15a. The outer ring rotating gear 14 is meshed with the outer teeth 11 b of the outer ring gear 11.

  In this embodiment, a controller 20 for controlling the rotation of the inner ring rotating motor 13 and the outer ring rotating motor 15 is provided. The controller 20 controls the rotation of the motors 13 and 15 so that the rotation amount of the outer ring gear 11 and the rotation amount of the flyer drum 3 are variable. The controller 20 is programmed to control the rotation of the motors 13 and 15 in accordance with the operation / setting by the operator.

  In this embodiment, a plurality of (for example, four) coils (windings) are continuously formed by winding the wire 2 around the winding frame 1. FIG. 2 is a conceptual diagram showing the winding direction of the wire 2 around the winding frame 1 when the four coils C1 to C4 are sequentially formed. The first to fourth coils C1 to C4 include first and third odd-numbered coils C1 and C3, and second and fourth even-numbered coils C2 and C4. Accordingly, the winding direction (rotation direction) of the wire 2 is clockwise, counterclockwise, clockwise, and counterclockwise in the order of the first to fourth coils C1 to C4.

  In the above configuration, when the odd-numbered coils C1 and C3 are formed, the outer ring gear 11 is rotated by rotationally driving the outer ring rotating gear 14 by the outer ring rotating motor 15. The rotation of the outer ring gear 11 causes the inner ring gear 10 to circulate around the inner ring gear 10 while the planetary gear 9 rotates between the outer ring gear 11 and the inner ring gear 10. By rotating the planetary gear 9 in this manner, the flyer drum 3 revolves around the winding frame 1 while rotating integrally with the planetary gear 9. By the movement of the flyer drum 3, the odd-numbered coils C <b> 1 and C <b> 2 are wound by winding the wire 2 around the winding frame 1 while winding the wire 2 around the flyer drum 3.

  FIG. 3 is a front view showing the winding start state of the odd-numbered coils C1 and C3. This state is also an initial set state of the wire 2 with respect to the winding device. In FIG. 3, it can be seen that the number of refractions of the wire 2 is only once for the flyer drum 3. FIG. 4 is a plan view showing the state of FIG. It can be seen that one end of the wire 2 is fixed to the winding frame 1 and rotates the inner ring gear 10 so that the flyer drum 3 revolves clockwise while rotating. By increasing or decreasing the rotation amount of the outer ring gear 11 when the flyer drum 3 is moved, the rotation amount of the flyer drum 3 can be made variable.

  FIG. 5 is a front view showing the winding end state of the odd-numbered coils C1 and C3. In FIG. 5, when the wire 2 is wound around the winding frame 1, the wire 2 can be wound around the flyer drum 3 and the winding frame 11 with good alignment by moving the winding frame 1 and the guide rod 7 upward. The wire 2 wound around the winding frame 1 is transferred to a conveying jig or the like (not shown), and the winding frame 1 is used for winding the next even-numbered coils C2 and C4.

  Thereafter, in order to form the even-numbered coils C2 and C4, the outer ring rotating gear 14 is rotated by the outer ring rotating motor 15, and the inner ring gear 10 is rotated by the inner ring rotating motor 13 simultaneously. The gear 10 rotates simultaneously. Due to the rotation of the outer ring gear 11 and the inner ring gear 10, the planetary gear 9 circulates around the inner ring gear 10 around the inner ring gear 10 between the outer ring gear 11 and the inner ring gear 10. By rotating the planetary gear 9 in this way, the flyer drum 3 revolves around the winding frame 1 without rotating together with the planetary gear 9. By the movement of the flyer drum 3, the even-numbered coils C2 and C4 are wound by winding the unwound wire 2 around the winding frame 1 while unwinding the wire 2 wound around the flyer drum 3.

  FIG. 6 is a front view showing a winding start state of the even-numbered coils C2 and C4. FIG. 7 is a plan view showing the state of FIG. One end of the wire 2 is fixed to the winding frame 1, and it can be seen that the flyer drum 3 revolves counterclockwise without rotating by rotating the inner ring gear 10 and the outer ring gear 11 simultaneously. As a result, the unwound wire 2 is wound around the winding frame 1 while unwinding the wire 2 wound around the flyer drum 3. Here, the amount of rotation of the flyer drum 3 can be made variable by increasing or decreasing the amount of rotation of the outer ring gear 11.

  FIG. 8 is a front view showing the winding end state of the even-numbered coil. In FIG. 8, the wire 2 wound around the winding frame 1 is transferred to a conveying jig or the like (not shown), and the winding frame 1 is used for winding the next odd-numbered coils C1 and C3.

  The controller 20 is programmed to control the rotation of the motors 13 and 14 in accordance with the formation of the odd-numbered coils C1 and C3 and the formation of the even-numbered coils C2 and C4.

  Here, the length of one turn of the wire 2 wound around the winding frame 1 is “L1”, and the length of one turn of the wire 2 wound around the flyer drum 3 is “L2”. If these two lengths L1 and L2 are made equal to each other, when the odd-numbered coils C1 and C3 are formed, the inner ring rotating motor 13 and the outer ring rotating motor 15 are rotated at the same number of rotations. The tension of 2 can be kept constant. On the other hand, when the even-numbered coils C2 and C4 are formed, the inner ring rotating motor 13 is stopped and the outer ring rotating motor 15 is rotated to wind the wire 2 around the winding frame 1 while keeping the tension of the wire 2 constant. be able to. When there is a difference between the two lengths L1 and L2, when the odd-numbered coils C1 and C3 are formed, when the outer ring rotating motor 15 is rotated once, the inner ring rotating motor 13 is also rotated one time, When the coils C2 and C4 are formed, when the outer ring rotation motor 15 is rotated once, the inner ring rotation motor 13 is increased or decreased by the difference between the two lengths L1 and L2. The two lengths L1 and L2 may be measured first and corrected as fixed values by the controller 20, or the tension between the reel 1 and the flyer drum 3 is measured to keep the tension constant. Thus, the rotational speed of the inner ring rotating motor 13 may be corrected.

  According to the winding device of this embodiment described above, the outer ring rotating gear 14 is rotated when the odd-numbered coils C1 and C3 are formed. Thus, the outer ring gear 11 is rotated to rotate around the inner ring gear 10 while rotating the planetary gear 9, thereby causing the flyer drum 3 to revolve with respect to the reel 1 while rotating. As a result, the plurality of wires 2 are wound around the winding frame 1 while being wound around the flyer drum 3. On the other hand, when winding the even-numbered coils C2 and C4, the outer ring rotating gear 14 and the inner ring gear 10 are simultaneously rotated. Thereby, the inner ring gear 10 and the outer ring gear 11 are simultaneously rotated to revolve with respect to the winding frame 1 without rotating the flyer drum 3. Thus, the unwound wire 2 is wound around the winding frame 1 while unwinding the wire 2 wound around the flyer drum 3. Therefore, the wire 2 only needs to be wound and refracted by the flyer drum 3. Further, since the flyer drum 3 revolves around the winding frame 1, the plurality of wires 2 are wound around the winding frame 1 without being twisted. For this reason, twisting of the wire 2 can be prevented. In addition, since the number of refractions of the wire 2 is relatively small, the work of replacing the wire 2 with respect to the winding device can be facilitated, and the hardening of the wire 2 can be suppressed.

  That is, in the winding device of this embodiment, the supply path of the wire 2 is not refracted in a complicated manner, so that the exchange of the winding frame 1 and the exchange operation of the wire 2 can be performed in a relatively short time. For this reason, the operating rate fall of the manufacturing line containing a coil | winding apparatus can be suppressed. Further, since the number of refractions of the wire 2 in the supply path of the wire 2 is relatively small, the hardening of the wire 2 can be suppressed and the bulk of the coil can be prevented. Thereby, when assembling a coil to a stator and producing a stator coil, the end shape of a stator coil can be made comparatively small.

  Furthermore, in this embodiment, since the rotation amount of the outer ring gear 11 and the rotation amount of the flyer drum 3 are controlled by the controller 20, the tension of the wire 2 wound around the winding frame 1 is adjusted as appropriate. For this reason, the tension of the wire 2 can always be made uniform. Moreover, the crossover length between the continuous coils C1 to C4 can be changed as necessary.

  In addition, this invention is not limited to the said embodiment, It can also implement as follows by changing a part of structure suitably in the range which does not deviate from the meaning of invention.

  (1) Although the case where the four coils C1 to C4 are continuously formed has been described in the above embodiment, the present invention can be applied to the case where five or more coils are formed.

  (2) In the above embodiment, the flyer drum 3 is revolved clockwise around the winding frame 1 when the odd-numbered coils C1 and C3 are formed, and the flyer drum 3 is rotated around the winding frame 1 when the even-numbered coils C2 and C4 are formed. Although the center is revolved counterclockwise, the direction of revolution may be reversed between the odd-numbered coil and the even-numbered coil.

The front view which shows a winding apparatus. The conceptual diagram which shows the winding direction of the wire with respect to a winding frame. The front view of the winding apparatus which shows the winding start state of an odd-numbered coil. The top view which shows the state of FIG. The front view of the winding apparatus which shows the winding end state of an odd-numbered coil. The front view of the winding apparatus which shows the winding start state of the even-numbered coil. The top view which shows the state of FIG. The front view of the winding apparatus which shows the winding end state of the even-numbered coil.

Explanation of symbols

1 winding frame 2 wire 3 flyer drum 8 shaft 9 planetary gear 10 inner ring gear 11 outer ring gear 11a inner tooth 11b outer tooth 14 outer ring rotating gear 15 outer ring rotating motor C1, C3 odd number coil C2, C4 even number coil

Claims (2)

A winding device for winding a plurality of wires supplied from the flyer around the reel by rotating the flyer around the reel,
The flyer is a flyer drum having a cylindrical shape, a planetary gear is fixed on an axis of the flyer drum, an inner ring gear and an outer ring gear are provided so as to be relatively rotatable on the same axis, and the outer ring gear is disposed on the inner circumference. Teeth have outer teeth on the outer periphery, the planetary gear is meshed with the inner ring gear and the inner teeth of the outer ring gear, and the outer ring rotating gear is meshed with the outer teeth of the outer ring gear;
By rotating the outer ring rotating gear, the outer ring gear is rotated and the planetary gear is rotated, and the inner ring gear is rotated around the inner ring gear so that the flyer drum rotates and revolves with respect to the winding frame. The odd-numbered coil is wound by winding the wire around the flyer drum while the wire is wound around the flyer drum, and the inner ring gear and the outer ring gear are rotated simultaneously by rotating the outer ring rotating gear and the inner ring gear simultaneously. The flyer drum was revolved with respect to the winding frame without rotating, and the even-numbered coil was wound by winding the unwound wire around the winding frame while unwinding the wire wound around the flyer drum. Winding device characterized by. 2. The motor according to claim 1, further comprising a motor for rotationally driving the outer ring rotating gear, wherein the rotation amount of the outer ring gear and the rotation amount of the flyer drum are variable by controlling the rotation of the motor. Winding device.

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