JP2009010145A - Winding method and winding apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To continuously and effectively form windings of coils with the alpha winding method. <P>SOLUTION: Winding of a coil C is formed by reversely winding the lead wire W in the winding starting side and winding terminating side from the intermediate part. The wound coil C is retracted from a working region of the winding process without cutting from the lead wire W to continuously guide the lead wire W for the next winding work. Accordingly, the coil C retracted with progress for the next winding is approximated to the working region of the winding work. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention belongs to the technical field related to the winding of a coil in which a wire is alpha-wound.

  Recently, as a coil corresponding to the miniaturization of a motor, the wire is tightly wound so that no unnecessary gap is formed between the wound layers, and the winding start and end of winding of the wire are the same. The thing which consists of the alpha volume which was made to be wired is becoming used frequently. This alpha winding coil is characterized by complicated winding work and complicated manufacturing. Therefore, there is a demand for the development of a winding technique that simplifies the winding operation of the alpha winding coil.

Conventionally, for example, the following are known as winding techniques aimed at simplifying the winding operation of the alpha winding coil.
Japanese Patent Laid-Open No. 2000-260650 discloses a storage wire (winding wire) in which a drawn wire is wound in a direction opposite to each other from a middle portion toward a winding start end side and a winding end side to wind a coil. A winding technique that employs a winding method referred to as “)” is described.

  In the winding technique according to Patent Document 1, a winding mechanism including a spindle and a flyer around which a wire is wound, a supply mechanism to which a wire is supplied, and a wire rod is supplied by using both the winding mechanism and the flyer. A winding device having a storage mechanism drawn out from the mechanism is configured. In this winding device, a wire rod is pulled out from a supply mechanism through a winding mechanism by a part of a flyer of a storage mechanism, and a midway portion of the wire is positioned on a spindle of the winding mechanism, and is wound from the midway portion of the wire rod. The winding start end side pulled out beyond the winding mechanism and the winding end side newly drawn out from the middle part of the wire rod are wound in opposite directions by the winding mechanism provided with a rotational difference between the spindle and the flyer. To turn. A part of the flyer of the storage mechanism is pulled and moved in the spindle direction of the winding mechanism as the winding progresses while being involved in winding of the storage portion of the wire as a winding mechanism.

  In the winding technique according to Patent Document 1, no technique for winding pre- and post-processing in the wire winding mechanism has been proposed, so that it is impossible to continuously and efficiently wind a large number of coils with alpha winding. There is a problem.

  The present invention has been made in view of such problems, and a winding method capable of continuously and efficiently winding a large number of coils with alpha winding, and this winding method is implemented. It is an object of the present invention to provide a winding device suitable for the above.

  In order to solve the above-described problems, the winding method according to the present invention employs the means described in claims 1 and 2 of the claims.

  That is, according to the first aspect of the present invention, in the winding method in which the drawn wire is wound in the opposite directions from the middle part toward the winding start end side and the winding end side, the coil is wound. Withdrawing from the winding work area without cutting from the wire material, the wire material for the next winding is drawn continuously, and the retracted coil is taken up as the next winding progresses. It is characterized by making it approach.

  In this means, the coil can be continued to the wire by retracting and approaching the wound work area without cutting the wound coil from the wire.

  According to a second aspect of the present invention, in the winding method according to the first aspect, the coils wound one after the other are adjacent to each other and retracted and moved closer to the winding work area.

  In this means, the coils wound one after another are arranged adjacent to each other so that the wound coils are aligned and retracted and approached to the winding work area.

  Furthermore, in order to solve the above-mentioned problem, the winding device according to the present invention employs means described in claims 3 to 5 of the claims.

  That is, according to claim 3, in a winding device including a winding mechanism including a spindle and a flyer around which a wire is wound, a supply mechanism to which the wire is supplied, and a storage mechanism for drawing the wire from the supply mechanism. The winding mechanism is disposed between the supply mechanism and the spindle, provided with a flyer that is coaxial with the spindle and rotated around the spindle with a rotational difference, and the storage mechanism is disposed so as to be able to advance and retract with respect to the spindle of the winding mechanism. A receiving shaft is provided for receiving a coil wound with a wire coaxially with the spindle when advancing with respect to the spindle, and for drawing the wire together with the coil from the supply mechanism through the spindle when retracted with respect to the spindle. It is characterized by being.

  In this means, the receiving shaft of the storage mechanism is moved back and forth with respect to the spindle of the winding mechanism, so that the wound coil is retracted and approached to the winding work area without being cut from the wire rod.

  According to a fourth aspect of the present invention, in the winding device of the third aspect, the receiving shaft of the storage mechanism is arranged in alignment so as to receive a plurality of coils adjacent to each other.

  In this means, the coils wound one after the other are received and placed adjacent to the receiving shaft of the storage mechanism arranged in alignment, so that the wound coils are aligned with respect to the winding work area. Evacuated and approached.

  According to a fifth aspect of the present invention, in the winding device according to the third or fourth aspect, a buffer member is interposed between the storage shaft and a drive unit that drives the forward and backward movement of the receiving shaft relative to the spindle of the winding mechanism. It is characterized by.

  In this means, a shock absorbing member is interposed between the bearing shaft of the storage mechanism and the drive unit, so that it is unnecessary for the coil when the shaft of the storage mechanism moves backward with respect to the spindle of the winding mechanism. Prevents tensile forces from acting.

  In the winding method according to the present invention, the coil can be continuously connected to the wire by retracting and approaching the wound work area without cutting the wound coil from the wire. The coil can be wound continuously and efficiently with alpha winding.

  In the winding device according to the present invention, the receiving shaft of the storage mechanism is advanced and retracted with respect to the spindle of the winding mechanism, so that the wound coil is not cut from the wire material and is wound on the winding work area. Since they are retracted and approached, there is an effect that the coil can be reliably moved when winding many coils continuously and efficiently with alpha winding.

  The best mode for carrying out a winding method and a winding apparatus according to the present invention will be described below with reference to the drawings.

  In this embodiment, a rectangular coreless type alpha-coiled coil is manufactured by a wire W made of an electric wire in which a copper-based metal material is coated with a thermosetting resin insulating material.

  This embodiment employs a winding method comprising a storage type similar to the winding technology according to Patent Document 1.

  That is, first, as shown in FIG. 1A, the drawn wire W is wound in the opposite direction from the middle part toward the winding start end Wa side and the winding end Wb side to wind the coil C. . In the wound coil C, the wire W is tightly wound so that no useless gap is formed between the winding layers, and the winding start end Wa and the winding end Wb of the wire W are wired in the same winding layer. Alpha volume.

  Subsequently, the wound coil C is retracted from the winding work area S without being cut from the wire W, as shown in FIG. As a result, the wire W for the next winding is continuously drawn out to the coil C.

  Subsequently, as shown in FIG. 1C, the winding operation of the wire W similar to that in FIG. 1A is executed, and the next coil C is wound. At this time, the coil C previously wound and retracted corresponding to the drawing of the wire W to be wound is brought close to the work area S for winding. As a result, both coils C are adjacent.

  Subsequently, as shown in FIG. 1D, the alignment direction of both adjacent coils C is changed.

  Then, as shown in FIG. 1 (D), the operations after FIG. 1 (B) are repeated.

  In addition, about the coil C continued to the wire W, it cut | disconnects from the wire W collectively for every appropriate number, and the terminal process of the winding start end Wa and the winding termination | terminus Wb is performed.

  According to this winding method, since the coils C wound one after another can be continuously connected to the wire W like a daisy chain, a large number of coils C can be wound continuously and efficiently with alpha winding. it can. In particular, since the coil C is retracted from the winding work area S during the winding work of the wire W, there is a problem in the winding work of the wire W or there is an apparatus configuration for the winding work of the wire W. There is no complication. In addition, since the coils C to be wound one after another are retracted and approached with respect to the winding work area S in a state where they are adjacently arranged, the coil C is not unnecessarily collapsed.

  In this embodiment, in order to carry out the above-described winding method, a winding device including the winding mechanism 1, the supply mechanism 2, the storage mechanism 3, and the heating mechanism 4 is configured.

  The winding mechanism 1 includes a spindle 1b and a flyer 1c that are driven to rotate by a common drive motor 1a and wind the wire W.

  The drive motor 1a of the winding mechanism 1 is supported by a support frame 1h that stands on a first slider 1g that slides on a first rail 1e disposed on an installation base 1d by driving of a drive unit 1f such as a cylinder. The main drive shaft 1i whose axis is disposed in the direction in which the first rail 1e is disposed is coupled.

  The spindle 1b of the winding mechanism 1 is formed in a prismatic shape so as to be a winding shaft of the wire rod W, and protrudes from a distal end portion of a flyer driving shaft 1j that rotationally drives the flyer 1c. It is rotated by a spindle drive shaft 1k that is fitted and removed. The spindle drive shaft 1k slides on the second rail 1m disposed on the installation base 1l disposed on the distal end side of the main drive shaft 1i on the installation base 1d by the drive of the drive unit 1n such as a cylinder. 2 It is supported by a bearing 1p supported by a slider 1o. The spindle drive shaft 1k is fixed with a driven pulley 1u that is connected via a belt 1t to a drive pulley 1s that is slidably fitted in a spline groove 1r that is engraved at the tip of the main drive shaft 1i. . The drive pulley 1s and the driven pulley 1u are designed to have a diameter so as not to cause a rotation difference between the main drive shaft 1i and the spindle drive shaft 1k.

  The flyer 1c of the winding mechanism 1 is formed in an L shape to turn and wind the wire W around the spindle 1b, protrudes to the outer peripheral side near the spindle 1b, and is driven to rotate by a fixed flyer drive shaft 1j ( The same direction as the rotational drive direction of the spindle drive shaft 1k). The flyer drive shaft 1j is pivotally supported by a bearing 1v supported by the support frame 1h. The flyer drive shaft 1j is fixed with a driven pulley 1y connected via a belt 1x to a drive pulley 1w fixed to the base end of the main drive shaft 1i. The drive pulley 1w and the driven pulley 1y are designed so that the flyer drive shaft 1j rotates at a double speed relative to the main drive shaft 1i.

  The supply mechanism 2 includes a bobbin 2a on which the wire W supplied to the spindle 1b and the flyer 1c of the winding mechanism 1 is stock-wound, and a supply path for the wire W between the flyer 1c and the bobbin 2a of the winding mechanism 1. Guides 2b, 2c, and 2d are provided.

  The bobbin 2a of the supply mechanism 2 is pivotally supported by a bearing 1v that pivotally supports the flyer drive shaft 1j of the winding mechanism 1 so as to be externally mounted on the outer peripheral side of the flyer drive shaft 1j. A brake gear 2g that meshes with a gear 2f connected to a hysteresis brake 2e supported by the support frame 1h of the winding mechanism 1 is fixed to the end of the bobbin 2a. The hysteresis brake 2e controls the rotation of the bobbin 2a to keep the tension of the wire W supplied to the spindle 1b and the flyer 1c of the winding mechanism 1 constant.

  The guides 2b, 2c, 2d of the supply mechanism 2 are composed of rollers, rings, and bars fixed to the flyer drive shaft 1j of the winding mechanism 1. The guide 2d made of a bar is arranged in parallel with the bobbin 2a, and when the wire W is made of a flat wire, it is relayed and relayed to smoothly feed the wire W from the bobbin 2a.

  The storage mechanism 3 includes a receiving shaft 3a that receives the coil C from the spindle 1b of the winding mechanism 1, and a sleeve 3b that moves the coil C from the spindle 1b of the winding mechanism 1 to the receiving shaft 3a.

  As shown in detail in FIG. 3, the receiving shaft 3 a of the storage mechanism 3 is formed in a prismatic shape like the spindle 1 b of the winding mechanism 1, and a plurality of the receiving shafts 3 a are arranged in parallel at regular intervals on the block-shaped base 3 c. ing. The base 3c is provided with a lashing shaft 3d for lashing the end of the wire W at both ends of the receiving shaft 3a in parallel. The base 3 is supported by a U-shaped holder 3f together with a stripper plate 3e that slides in the axial direction of the receiving shaft 3a and the bald shaft 3d to release the coil C. The holder 3f is coupled to the first slider 3h via a buffer member 3g composed of a coil spring, a guide shaft, etc., and is driven in the vertical direction by driving a first drive unit 3i composed of a ball screw, a motor, etc. coupled to the first slider 3h. It is designed to be lifted up and down. The first slider 3h is vertically moved to a second slider 3l that slides a second rail 3j disposed laterally on the side surface of the mounting base 1l of the winding mechanism 1 by driving of a second drive unit 3k such as a cylinder. Slide the arranged first rail 3m. The first drive unit 3i is supported by the second slider 3l.

  The sleeve 3b of the storage mechanism 3 is fitted to the outside of the spindle 1b of the winding mechanism 1 and is slid toward the tip of the spindle 1b by a drive unit (not shown) such as a solenoid.

  The heating mechanism 4 sprays hot air directed to the vicinity of the spindle 1b of the winding mechanism 1 to heat the copper-based metal material without causing thermal deterioration of the insulating material of the thermosetting resin of the wire W, thereby smoothing the winding. It consists of a nozzle.

  According to this winding device, the middle portion of the wire rod W is positioned on the spindle 1b of the winding mechanism 1 (the end of the wire rod W is tangled on one lashing shaft 3d of the wire storage mechanism 3). The alpha winding coil C can be wound by winding the wire W in the opposite directions toward the winding start end Wa side and the winding end Wb side due to the rotation difference between the spindle 1b and the flyer 1c of the winding mechanism 1. (See FIGS. 4A and 5).

  Thereafter, as shown in FIGS. 4B and 6, a space for raising the receiving shaft 3 a of the storage mechanism 3 is formed by separating the spindle 1 b and the spindle drive shaft 1 k of the winding mechanism 1.

  Then, as shown in FIGS. 4C, 7, and 8, the storage shaft 3 a of the storage mechanism 3 is raised between the spindle 1 b and the spindle drive shaft 1 k of the winding mechanism 1 to store the storage mechanism 3. The receiving shaft 3a and the spindle 1b of the winding mechanism 1 are coaxial, and end faces are joined. Further, as shown in FIGS. 4D and 9, the coil C can be delivered to the receiving shaft 3 a of the storage mechanism 3 by sliding the sleeve 3 b of the storage mechanism 3.

  Thereafter, as shown in FIGS. 10 to 12, the receiving shaft 3 a of the storage mechanism 3 that has received the coil C is lowered, and the spindle 1 b and the spindle driving shaft 1 k of the winding mechanism 1 are brought close to each other and fitted together. As a result, the midway portion of the wire W continuous to the coil C is positioned on the spindle 1b of the winding mechanism 1 so that the wire W can be wound next time. When the receiving shaft 3a of the storage mechanism 3 that has received the coil C is lowered, unnecessary tension or the like is prevented from being applied to the coil C wound by the buffer member 3g. There will be no collapse.

  In the next winding of the wire W, as shown in FIG. 13, the receiving shaft 3a of the wire storage mechanism 3 that has received the coil C is raised in response to the drawing of the wound wire W. Therefore, the receiving shaft 3a of the storage mechanism 3 that has received the coil C is retracted from the operating area of the spindle 1b and the flyer 1c of the winding mechanism 1, which is the winding work area S, to complete the next winding. At this time, it advances again to the spindle 1b of the winding mechanism 1. Accordingly, the receiving shaft 3a of the storage mechanism 3 that has received the coil C does not interfere with the next winding operation of the wire W.

  The receiving shaft 3a of the storage mechanism 3 is moved in the lateral direction by a width corresponding to one of the parallel intervals prior to receiving the coil C wound next.

  Thereafter, the winding process described above is repeated, and the terminal of the wire W is tangled to the other lashing shaft 3d of the storage mechanism 3 with the coil C being received by the receiving shaft 3a of the storage mechanism 3. It will be. Since the wound coil C is supported by the receiving shaft 3a of the storage mechanism 3 in a state of being adjacent and aligned, the coil C when retracted and approached from the winding work area S. Unnecessary collapse of the roll can be reliably prevented.

  As described above, the present invention can be applied to the case where the wire W is wound with the bobbin detachably supported on the spindle 1b of the winding mechanism 1 in addition to the illustrated embodiment.

  Furthermore, it is also possible to make the drive system of the winding mechanism 1 and the storage mechanism 3, the moving structure, etc. other configurations.

  The winding method and the winding device according to the present invention can be implemented even if the wire W is other than an electric wire.

The winding process of the best form for implementing the winding method and winding apparatus which concern on this invention is shown, and process order is shown by (A)-(E). It is a front view which shows the apparatus structure for implementation of FIG. It is side surface sectional drawing which cut | disconnected a part of principal part of FIG. It is a perspective view of operation | movement of the principal part of FIG. 2, and the operation | movement order is shown by (A)-(D). FIG. 3 is a simplified cross-sectional view of a main part of FIG. 2. FIG. 6 is an operation diagram of a winding process subsequent to FIG. 5. FIG. 7 is an operation diagram of a winding process subsequent to FIG. 6. FIG. 8 is an operation diagram of a winding process subsequent to FIG. 7. FIG. 9 is an operation diagram of a winding process subsequent to FIG. 8. FIG. 10 is an operation diagram of a winding process subsequent to FIG. 9. FIG. 11 is an operation diagram of a winding process subsequent to FIG. 10. FIG. 12 is an operation diagram of a winding process following FIG. 11. FIG. 13 is an operation diagram of a winding process subsequent to FIG. 12.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Winding mechanism 1b Spindle 1c Flyer 2 Supply mechanism 3 Storage mechanism 3a Receiving shaft C Coil S Winding work area W Wire material

Claims (5)

  In the winding method in which the drawn wire is wound in the opposite direction from the middle part toward the winding start end side and the winding end side to wind the coil, the wound coil is wound without being cut from the wire rod. The wire for the next winding is continuously drawn out from the work area of the first turn, and the retracted coil is brought closer to the work area of the winding as the next winding progresses. Characteristic winding method.   2. The winding method according to claim 1, wherein coils wound one after another are adjacent to each other and retracted and approached to a winding work area.   In a winding device including a winding mechanism including a spindle and a flyer around which a wire is wound, a supply mechanism to which a wire is supplied, and a storage mechanism for drawing the wire from the supply mechanism, the winding mechanism is a supply mechanism. A flyer that is arranged between the spindle and coaxially with the spindle and is rotated around the spindle with a rotational difference is provided. The coil is provided with a receiving shaft for receiving a coil wound coaxially with the spindle and receiving the coil wound around the spindle and retracting the wire together with the coil from the supply mechanism through the spindle. Wire device.   4. The winding device according to claim 3, wherein the receiving shaft of the storage mechanism is arranged in alignment so as to receive a plurality of coils adjacent to each other.   5. The winding device according to claim 3, wherein the storage mechanism is provided with a buffer member between the receiving shaft and a drive unit for driving advancement and retraction of the receiving shaft with respect to the spindle of the winding mechanism. Winding device.

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