JP2015220267A - Coil manufacturing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coil manufacturing apparatus that can immediately cut a wire at the winding start end or winding finish end of an obtained coil by a predetermined length.SOLUTION: A coil manufacturing apparatus 10 has a nozzle 31, a take-up jig 18 for winding a wire 12 let out from the nozzle 31, a clamp device 53 for clamping the end portion of the wire 12, a flat-plate type wire holding plate 71 having first and second slits which are formed in parallel in the axial direction of the take-up jig 18 and in which the wire 12 secured around the periphery of the take-up jig 18 is insertable, a cutter tooth plate 73 which is provided to be superimposed on the wire holding plate 71 and can cut the wire 12 inserted in the first and second slits, a wire storage moving mechanism 54 for moving the clamp device 53 in the directions of three axes to insert the wire 12 extending from the take-up jig 18 to the clamp device 53 into one of the first and second slits, and a nozzle moving mechanism 33 for moving the nozzle 31 in the directions of three axes to insert the wire extending from the take-up jig to the nozzle into the other slit of the first and second slits.

Description

  The present invention relates to a coil manufacturing apparatus that winds a wire fed from a nozzle and manufactures a coil.

  Conventionally, as a chip coil used in a small electronic device or the like, a coil is obtained by winding a wire around a winding body of a core having flanges at both ends, and the wire formed at the end of the coil is formed at the flange What is fixed to is known. As a device for manufacturing such a chip coil, a wire rod feeding machine that feeds a wire rod from a nozzle with a constant tension, a core that supports and rotates together with the core, and a wire rod fed from the nozzle is wound around the rotating core. The thing provided with the winding jig | tool which takes is known (for example, refer patent document 1).

  In this coil manufacturing apparatus, the core is gripped by the winding jig, the winding jig is rotated together with the core, the wire rod fed from the nozzle is held by the wire rod holding member and moved to the other flange side, Thereafter, the wire fed from the nozzle is wound around the core.

  Further, in the processing of the wire rod in the chip coil manufacturing apparatus, after the winding is finished, the nozzle is pulled out to the one rib side where the electrode is formed, and the wire rod at the end of the winding is moved to the one rib side. It is being pulled out.

  Simultaneously with the drawing operation of the wire rod at the end of winding, the wire rod holding member is moved to move the wire rod at the beginning of winding, which has been drawn out from the other flange side, to the one rib side, and the wire rod at the beginning of the winding Is routed to the side where the electrode of one of the collars is formed. Thereafter, the wire rod at the end of the coil is fixed by soldering to the electrode formed on the collar. Then, the nozzle and the wire holding member are moved away from the core, and the remaining wire is stripped in the vicinity of the electrode.

  As described above, the wire material processing at the end of the coil in the conventional coil manufacturing apparatus is performed by moving the nozzle that actually feeds the wire material or the wire material holding member that initially holds the wire material at the beginning of winding the wire material. The wire is guided to the electrode or shredded.

  On the other hand, in recent years, there is a case where the wire rods at both ends of the coil cannot be accurately processed by the movement of the nozzle and the wire rod holding member. In this case, after cutting the wire material at both ends of the coil to a predetermined length, the wire material remaining at the predetermined length from both ends of the coil is then subjected to actual processing such as soldering. . And the cutting of the wire in that case, the nipper device that can cut the wire by electric or fluid pressure is moved three-dimensionally by a three-axis movement mechanism, and the wire is sandwiched between a pair of cutting teeth of the nipper device, The wire rod is cut by closing the pair of cutting teeth (see, for example, Patent Document 2).

JP 2007-266578 A JP 2012-80037 A

  However, since the wire cutting device in the conventional coil manufacturing apparatus moves the nipper device by the triaxial moving mechanism, the triaxial moving mechanism becomes relatively large, and the entire apparatus becomes large. was there.

  In particular, in recent years, when manufacturing a so-called α-winding coil in which both the winding start and end windings are on the outer periphery, the winding start and end winding wires are soldered to the electrodes formed on the flanges. Tends to make the length of the wire left from both ends of the coil relatively short for processing the wire. That is, it is necessary to cut the wire material at the start and end of winding of the coil at a location close to the coil. For this purpose, it is necessary to move the nipper device to the vicinity of the coil by the triaxial moving mechanism. Then, in order to avoid contact with the coil, the movement by the three-axis movement mechanism of the nipper device is complicated, and the time required for the terminal processing increases, and there is a problem that quick processing becomes difficult.

  The objective of this invention is providing the comparatively small coil manufacturing apparatus which can cut | disconnect the wire material of the winding start of the obtained coil, or winding end at predetermined length immediately.

  A coil manufacturing apparatus according to the present invention includes a nozzle that feeds a wire, a winding jig that winds the wire fed from the nozzle, and a clamp device that grips an end of the wire fed from the nozzle. It is an improvement of the device.

  The characteristic configuration is a flat wire holding plate in which first and second slits that are attached around the winding jig and through which the wire can be inserted are formed in parallel to the axial direction of the winding jig, and the wire holding Cutter tooth plate that is formed by superposing on the plate and that can cut the wire inserted through the first and second slits, and the wire that extends from the winding jig to the clamp device by moving the clamp device in three axes. And a storage movement mechanism that is inserted into one of the second slit and a nozzle that moves the nozzle in the triaxial direction to insert the wire extending from the winding jig to the nozzle into the other of the first and second slits. And a moving mechanism.

  The coil manufacturing apparatus further includes a rotating means for rotating the nozzle or the clamping device around the winding jig, and the rotating means moves the nozzle or the clamping device in the same direction at a speed faster than the rotating speed of the winding jig. It is preferable that both the wire rod fed out from the nozzle and the wire clamped by the clamp device and wound in advance from the nozzle are wound around the winding jig.

  In this coil manufacturing apparatus, it is more preferable that the wire holding plate is provided with a lateral slit that communicates with the first and second slits and goes straight to the first and second slits.

  In the coil manufacturing apparatus of the present invention, the wire rod holding plate and the cutter tooth plate are provided around the winding jig. Therefore, the wire rod extending from the clamp device is moved to the first or second slit by moving the clamping device by the storage movement mechanism. The wire can be cut by being inserted, and the wire is cut by moving the nozzle in the triaxial direction by the nozzle moving mechanism and inserting the wire extending from the nozzle into the second or first slit. Can do. Therefore, the coil manufacturing apparatus of the present invention does not use a nipper device or a triaxial moving mechanism that has been conventionally required for cutting the wire.

  Since the cutter blade plate for cutting the wire rod is provided around the winding jig, it does not become a large-sized one, and this cutter blade plate is provided by being superimposed on the wire rod holding plate. The wire extending to the cutter blade plate is locked to the wire holding plate in the cut state. Therefore, the coil manufacturing apparatus according to the present invention is a relatively small device capable of cutting and locking the wire material at the start or end of winding of the obtained coil at a predetermined length.

  Further, the nozzle or the storage means is rotated by the rotation means in the same direction at a speed faster than the rotation speed of the winding jig, and the wire rod fed out from the nozzle to the winding jig and the wire rod stored in the storage means If both are wound, an α-wound coil can be manufactured in which the wire material at the beginning and end of winding are both outer circumferences.

  Even when such an α-wound coil is obtained, the wire material at the beginning or end of winding of the obtained coil can be immediately cut to a predetermined length. Since the distance between the cutter blade plate and the winding jig is the length of the wire to be cut, the predetermined length of the wire that can be easily cut by changing the mounting position of the cutter blade plate is set. It becomes possible to change.

It is a front view which shows the coil manufacturing apparatus of this invention embodiment. It is a side view which shows the coil manufacturing apparatus. It is the A section enlarged partial sectional view of Drawing 1 showing the winding jig. It is the BB sectional drawing of FIG. 3 which shows the wire holding | maintenance board. It is CC sectional view taken on the line of FIG. 3 which shows the cutter blade board. It is the DD sectional view taken on the line of FIG. 1 which shows the storage means. It is a figure which shows the state which draws out the wire drawn | fed out from the nozzle. It is a figure corresponding to FIG. 7 which shows the state which put the withdrawn wire rod along a core. It is a perspective view which shows the state by which the alpha coil was obtained. It is a perspective view which shows the state which cut | disconnects the wire drawn out from the coil.

  Next, the best mode for carrying out the present invention will be described with reference to the drawings.

  A coil manufacturing apparatus 10 of the present invention is shown in FIGS. Here, the coil manufacturing apparatus 10 of the present invention will be described on the assumption that three axes X, Y, and Z that are orthogonal to each other are set, the X axis extends in the horizontal front-rear direction, the Y axis extends in the horizontal horizontal direction, and the Z axis extends in the vertical direction. To do.

  The coil manufacturing apparatus 10 of the present invention includes a winding jig 18 that rotates and winds the wire 12. The wire 12 in this embodiment is a so-called heat-sealing wire in which a heat-fusible film is formed around the conductor body, and the surface film is melted by blowing hot air, so that the adjacent wire 12 When the wire is crossed with the surface coating and solidified by cooling, the wire 12 adjacent to each other is bonded to maintain its shape.

  The coil manufacturing apparatus 10 has a horizontal pedestal 13, and a base 16 is horizontally provided on the pedestal 13 via a support column 14. A winding jig 18 extends in the vertical direction on the base 16 and pivots. Be supported.

  As shown in FIG. 3, the winding jig 18 includes a spindle shaft 19 that is pivotally supported by the base 16, a body portion 20 that is coaxially provided at the upper end of the spindle shaft 19 and has a square cross section, A winding portion 21 is provided coaxially at the upper end of the body portion 20 and accommodates the core 11 around which the wire 12 is wound at the upper end thereof.

  The core 11 is formed by forming flanges 11a and 11b at both ends of the winding body 11c. And the recessed part 21a which accommodates one collar part 11a of such a core 11 shall be formed in the upper edge of the winding part 21. As shown in FIG.

  As shown in FIG. 1, the coil manufacturing apparatus 10 of the present invention includes a rotating means for rotating such a winding jig 18. This rotating means is a motor 23 attached to the pedestal 13, and a first pulley 24a is provided on the rotating shaft thereof. A second pulley 24 b is attached to the spindle shaft 19 (FIG. 3) that projects downward from the base 16. When the belt 24c is wound between the first pulley 24a and the second pulley 24b and the motor 23 is driven, the winding jig 18 is moved via the first pulley 24a, the belt 24c, and the second pulley 24b. Configured to be rotatable.

  As shown in FIG.1 and FIG.2, the coil manufacturing apparatus 10 of this invention is equipped with the wire rod feeder which draws out the wire 12 with a fixed tension | tensile_strength. This wire feeding machine includes a nozzle 31 through which the wire 12 is inserted, a rotating mechanism 32 that rotates the nozzle 31, a nozzle moving mechanism 33 that moves the nozzle 31 together with the rotating mechanism 32 in a triaxial direction, and the wire And a tension device 42 for applying tension to the twelve.

  The nozzle 31 is fixed to a rotating member 39 pivotally supported by the support plate 38. The support plate 38 is supported horizontally by the nozzle moving mechanism 33, and the rotating member 39 is pivotally supported on the support plate 38 with the rotation axis thereof in the vertical direction.

  A substantially crank-shaped attachment member 40 is attached to the rotating member 39 below the support plate 38. A pressing rod 22 (FIG. 1) is attached to the attachment member 40 so as to be coaxial with the rotation shaft of the rotation member 39, and the nozzle 31 is fixed to the lower portion of the attachment member 40 that is displaced from the rotation shaft of the rotation member 39. Is done.

  The nozzle 31 is a hexahedron, and a feeding hole 31a through which the wire 12 is inserted in the horizontal direction is formed in the lower part thereof. The feed hole 31a is formed from the outside of the rotation member 39 toward the rotation center of the rotation member 39. The distance from the rotation center to the nozzle 31 is set by a circle drawn by the nozzle 31 when the rotation member 39 rotates. The degree is sufficient to surround the core 11 supported by the turning portion 21.

  Further, the holding bar 22 is configured to move by the nozzle moving mechanism 33 so as to hold down the other flange 11c of the core 11 in which the one flange 11a is accommodated in the recess 21a at the upper end of the winding portion 21 ( 3), the feeding hole 31a of the hexagonal nozzle 31 is formed so as to face the winding body 11b of the core 11 in a state where the pressing bar 22 presses the other flange portion 11c (FIG. 8). .

  An insertion hole 39a is formed at the rotation center of the rotation member 39, and the insertion hole 39a is formed so that the wire 12 can be inserted. Then, pulleys 41 a to 41 c that guide the wire 12 inserted through the insertion hole 39 a formed in the vertical direction to the feeding hole 31 a of the nozzle 31 are attached to the lower portion of the rotating member 39 and the attachment member 40, respectively.

  The wire 12 drawn by these pulleys 41 a to 41 c is configured to be inserted into the feed hole 31 a of the nozzle 31 from the outside toward the center of the rotating member 39.

  As shown in FIG. 1, the rotation mechanism 32 that rotates the nozzle 31 is a motor 32 attached to a support plate 38, a third pulley 32 a is provided on the rotation shaft, and projects above the support plate 38. A fourth pulley 32b is attached to the rotating member 39 that rotates. When the belt 32c is wound around the third pulley 32a and the fourth pool 32b and the motor 32 is driven, the rotating member 39 is rotated together with the nozzle 31 via the third pulley 32a, the belt 32c and the fourth pulley 32b. Configured to be possible. The nozzle moving mechanism 33 that moves the nozzle 31 in the triaxial direction together with the rotating mechanism 32 is configured to be able to move the support plate 38 in the triaxial direction with respect to the base 13.

  As shown in FIG. 2, the nozzle moving mechanism 33 in this embodiment is configured by a combination of X-axis, Y-axis, and Z-axis direction expansion / contraction actuators 34 to 36.

  The telescopic actuators 34 to 36 constituting the nozzle moving mechanism 33 are elongated box-shaped housings 34d to 36d and extended in the longitudinal direction inside the housings 34d to 36d, and are rotationally driven by servo motors 34a to 36a. It comprises ball screws 34b to 36b and followers 34c to 36c that are screwed into the ball screws 34b to 36b to move in parallel. When each of the telescopic actuators 34 to 36 is driven by the servo motors 34a to 36a and the ball screws 34b to 36b are rotated, the followers 34c to 36c screwed into the ball screws 34b to 36b are the longitudinal lengths of the housings 34d to 36d. It is configured to be movable along the direction.

  In this embodiment, a support plate 38 provided with a nozzle 31 is attached to a follower 36c of a Z-axis direction extension / contraction actuator 36 so as to be movable in the Z-axis direction. The housing 34d of the X-axis direction expansion / contraction actuator 34 is attached to the housing 36d of the Z-axis direction expansion / contraction actuator 36 via an L-shaped angle 33a so as to be movable in the direction.

  In addition, the follower 34c of the X-direction telescopic actuator 34 can be moved to the follower 35c of the Y-axis telescopic actuator 35 so that the support plate 38 can be moved in the Y-axis direction together with the X-axis and Z-axis telescopic actuators 34, 36. Mounted.

  Then, the housing 35d of the Y-axis direction extendable actuator 35 extends in the Y-axis direction and is fixed to the pedestal 13 via the support column 33b.

  The servo motors 34a to 36a in the telescopic actuators 34 to 36 are connected to control outputs of a controller (not shown) that controls them.

  As shown in FIG. 1, the tension device 42 is capable of applying tension to the fed wire 12 and pulling back the wire 12.

  The tension device 42 in this embodiment includes a casing 44 that is installed via a mounting leg 43, and a drum 45 and a tension bar 46 that are provided on a side surface of the casing 44.

  The wire rod 12 is wound around a drum 45, and a feed control motor 47 for feeding the wire rod 12 by rotating the drum 45 is provided inside the casing 44. The wire rod 12 fed from the drum 45 is placed at the tip of the tension bar 46. It is guided to the wire guide 46a.

  The wire 12 guided to the wire guide 46a is wired so as to pass through the insertion hole 39a of the rotating member 39 from the wire guide 46a.

  The tension bar 46 can be pivoted about the pivot shaft 46b at the base end. The rotation angle of the rotation shaft 46b is detected by a potentiometer 48 serving as a rotation angle detection means housed in the casing 44 and attached to the rotation shaft 46b. The detection output of the potentiometer 48 is input to a controller (not shown), and the control output from the controller is connected to the feeding control motor 47.

  One end of a spring 49, which is an elastic member serving as a biasing means for applying a biasing force in the rotation direction of the tension bar 46, is attached to a predetermined position between the rotation shaft 46b of the tension bar 46 and the wire guide 46a. It is attached via a bracket 46c.

  The tension bar 46 is given an elastic force according to the rotation angle by a spring 49 which is an elastic member. The other end of the spring 49 is fixed to the moving member 50.

  The moving member 50 is screwed into a male screw 51a of a tension adjusting screw 51, and is configured to be movable and adjustable according to the rotation of the male screw 51a. Thus, the fixed position of the other end of the spring 49 can be displaced, and the tension of the applied wire 12 can be adjusted by the tension bar 46 urged by the spring 49 in the direction indicated by the one-dot chain line.

  A controller (not shown) is configured to control the feeding control motor 47 so that the rotation angle detected by the potentiometer 48 serving as a rotation angle detection means becomes a predetermined angle.

  Therefore, in this tension device 42, tension is applied to the wire 12 via the tension bar 46 by the spring 49, and the drum 45 rotates so that the tension bar 46 has a predetermined angle, and a predetermined amount of the wire 12 is fed out. Is done. Therefore, the tension of the wire 12 is maintained at a predetermined value.

  In addition, the coil manufacturing apparatus 10 includes storage means 52 that draws out and stores the wire 12 for a predetermined number of turns from the nozzle 31. The storage means 52 includes a storage clamp device 53 configured to be able to hold the wire 12 and a storage movement mechanism 54 that moves the clamp device 53 in three axial directions.

  The storage clamp device 53 in the storage means 52 has clamping pieces 53a and 53b (FIG. 6) that open and close when compressed air is supplied or exhausted, and is fed from the nozzle 31 by the clamping pieces 53a and 53b. The wire 12 can be gripped.

  The storage clamp device 53 is provided on the moving plate 58 so as to extend in the Y-axis direction so as to face the nozzle 31. The pinching pieces 53a and 53b of the storage clamp device 53 are formed by bending the tip facing the nozzle 31 upward. The clamp device 53 is configured so that compressed air is supplied or exhausted according to a command from a controller (not shown).

  As shown in FIG. 6, the moving plate 58 is provided with a rail 59 extending in the Y-axis direction. The clamp device 53 is attached to the rail 59 so as to be movable in the Y-axis direction with the clamping pieces 53a and 53b protruding toward the winding jig 18 (FIG. 1).

  Further, one end of a coil spring 60 is attached to the storage clamp device 53, and the other end of the coil spring 60 is fixed to the moving member 61. The moving member 61 is screwed into a male screw 62a of a tension adjusting screw 62, and is configured to be movable and adjustable according to the rotation of the male screw 62a.

  The coil spring 60 urges the storage clamp device 53 in a direction away from the winding jig 18, and the storage movement mechanism 54 (FIG. 1) moves the moving plate 58 together with the storage clamp device 53. It is configured to move in the triaxial direction.

  Returning to FIG. 1, the storage movement mechanism 54 has the same structure as the nozzle movement mechanism 33 described above, and is configured by a combination of X-axis, Y-axis, and Z-axis direction expansion / contraction actuators 55 to 57.

  In this embodiment, the moving plate 58 provided with the storage clamp device 53 is attached to the housing 56d of the Y-axis direction expansion / contraction actuator 56 so as to be movable in the Y-axis direction. A follower 56c of the Y-axis direction expansion / contraction actuator 56 is attached to a housing 57d of the Z-axis direction expansion / contraction actuator 57 so as to be movable in the Z-axis direction.

  The follower 57c of the Z-axis direction telescopic actuator 55 is driven by the follower 55c of the X-axis direction telescopic actuator 55 so that the movable plate 58 can be moved in the X-axis direction together with the Y-axis and Z-axis direction extendable actuators 56, 57. Mounted on.

  The housing 55d of the X-axis direction extendable actuator 55 extends in the X-axis direction and is fixed to the pedestal 13.

  The servo motors 55a to 57a in each of the telescopic actuators 55 to 57 are connected to a control output of a controller (not shown) that controls them.

  The operations of the servo motors 55a to 57a, the ball screws 55b to 57b, and the followers 55c to 57c are the same as those of the nozzle moving mechanism 33, and thus the description thereof is omitted.

  Moreover, the coil manufacturing apparatus 10 of the present invention includes a wire rod holding plate 71 provided on the body portion 20 of the winding jig 18.

  As shown in FIGS. 3 and 10, the wire holding plate 71 is attached to the periphery of the body portion 20 with a machine screw 72 so that the upper edge protrudes from the upper end of the body portion 20.

  As shown in FIGS. 4 and 10, a pair of slits 71 a extending in the axial direction of the spindle shaft 19 from the upper edge is formed at a predetermined interval in a portion protruding upward from the upper end of the body portion 20.

  The slit 71a has an expanded portion 71b whose width increases toward the upper edge, and a parallel portion 71c having a width substantially equal to the outer diameter of the wire at the lower end of the expanded portion 71b.

  Further, in order to attach the wire holding plate 71 to the barrel 20 via the machine screw 72, the machine screw 72 can enter the lower part of the wire holding plate 71 that is superimposed on the barrel 20 of the winding jig 18. A notch 71e is provided extending upward from the lower edge.

  Further, a cutter blade plate 73 is superposed on the flat wire holding plate 71 on the opposite side of the winding jig 18.

  The cutter blade plate 73 has a square shape, and a blade edge 73a is formed on one side on the upper side. Further, in order to attach the cutter blade plate 73 to the body portion 20 via the machine screw 72, a notch 73b into which the machine screw 72 can enter extends upward from the lower edge. Provided.

  The notch 73b in the cutter blade plate 73 is formed corresponding to the notch 71e in the wire holding plate 71, and the notches 71e and 73b coincide with each other in a state where the cutter blade plate 73 is superposed on the wire holding plate 71. Configured as follows. Although not shown, a female screw into which the machine screw 72 inserted through the notches 71e and 73b is screwed is formed in the body portion 20.

  Then, as shown in FIG. 10, the wire 12 that has entered the parallel portion 71c from the expanded portion 71b of the slit 71a is superposed and attached to the wire holding plate 71 so as to contact the blade edge 73a. Therefore, the cutter blade plate 73 is configured to be able to cut the wire 12 that has entered the slit 71a in the wire holding plate 71 and has come into contact with the blade edge 73a.

  The wire holding plate 71 is provided with a lateral slit 71d that communicates with the first and second slits 71a and goes directly to the first and second slits 71a. The horizontal slit 71d is formed along the blade edge 73a, and the wire 12 that enters the horizontal slit 71d and moves along the blade edge 73a is configured to come into contact with the blade edge 73a and be cut.

  Further, the coil manufacturing apparatus 10 is provided with a hot air generator (not shown) that blows hot air toward the wire 12 wound around the core 11 provided in the winding portion 21 of the winding jig 18. A hot air blowing nozzle in the hot air generator is provided so as to face the core 11.

  Next, the operation of the coil manufacturing apparatus will be described.

  In the coil manufacturing apparatus 10 according to the present invention, the wire rod drawn out from the nozzle 31 in the wire rod feeder is held and the wire rod is drawn out by rotating the winding jig 18 by rotating the wire rod 12 for a predetermined length. Is wound around the core 11 provided in the winding portion 21, and the wire 31 fed from the nozzle 31 by rotating the nozzle 31 in the same direction as the core 11 is wound around the core 11 to form an α-winding coil The α-winding coil forming step for forming 17 and the wire rod cutting step for cutting the wire rods 12a, 12b at both ends of the α-winding coil 17 into a predetermined length can be performed. Below, each process is explained in full detail.

<Wire drawing process>
In this step, the wire 12 fed from the nozzle 31 is held and pulled out for a predetermined length. The wire 12 is wound around the drum 45, and the wire 12 fed from the drum 45 is guided to the wire 12 guide 46a at the tip of the tension bar 46, and passes through the insertion hole 39a of the rotating member 39 from the wire 12 guide 46a. Wiring to.

  The wire rod 12 in this embodiment is a so-called square wire having a square cross section, and the wire rod 12 penetrating the insertion hole 39 a is passed through the feed hole 31 a of the nozzle 31.

  And as shown in the enlarged view of FIG. 1, the end of the wire 12 passed through the feeding hole 31a is drawn obliquely upward. By bending this diagonally upward, the wire 12 is locked to the hole edge of the feeding hole 31a and is prevented from returning toward the tension device 42 side.

  In this wire drawing-out step, the storage clamp device 53 is moved by the storage moving mechanism 54, and the wire 12 fed out from the nozzle 31 and bent obliquely upward by the clamping pieces 53a and 53b is gripped.

  Thereafter, the storage clamp device 53 is moved again by the storage movement mechanism 54, and the storage clamp device 53 is pulled away from the nozzle 31 as shown in FIG. Thereby, the wire 12 is drawn out from the nozzle 31 by a predetermined length.

  This predetermined length is the length of the wire 12 necessary for winding one coil of the α-winding coil 17 (FIG. 10) to be obtained, and is stored when it is substantially equal to the length. The movement of the wire clamp device 53 is stopped, and this wire drawing process is completed.

<Winding process and α winding coil formation>
In this embodiment, the case where the winding process and the α-winding coil formation are performed simultaneously is shown.

  In this embodiment, the case where the wire 12 is wound around the core 11 will be described. For this reason, first, the core 11 is accommodated in the concave portion 21a at the upper end of the winding portion 21 in the one flange portion 11a.

  The nozzle moving mechanism 33 moves the pressing bar 22 together with the nozzle 31 to press the other flange 11c of the core 11 in which the one flange 11a is accommodated in the recess 21a at the upper end of the winding portion 21 (FIG. 3).

  Specifically, in the nozzle moving mechanism 33 shown in FIGS. 1 and 2, the rotating member 39 provided with the nozzle 31 is moved to above the winding part 21, and the rotation center is set to the winding part 21. Match the center of rotation. In this state, the rotating member 39 is lowered, and the upper portion of the core 11 is pressed by the pressing bar 22 provided coaxially at the rotation center of the rotating member 39.

  In this way, the core 11 is installed on the winding part 21. Then, the feeding hole 31 a of the nozzle 31 that forms a hexahedron faces the winding body portion 11 b of the core 11 while the pressing bar 22 presses the other flange portion 11 c.

  Next, as shown in FIG. 8, the storage clamp device 53 is moved so that the wire 12 drawn from the nozzle 31 follows the core 11 provided in the winding part 21. The storage clamp device 53 is moved by a storage movement mechanism 54 (FIG. 1).

  Then, as shown in FIG. 9, the wire rod 12 drawn by rotating the winding jig 18 is rewound onto the core 11 provided in the winding portion 21, and at the same time, the nozzle 31 is rotated by the winding portion 21. The α-winding coil 17 is formed by winding the wire 12 newly fed out from the nozzle 31 around the core 11 by rotating in the same direction at a faster double rotational speed.

  The rotation of the nozzle 31 is performed by rotating a rotating member 39 provided with the nozzle 31 by a motor 32 (FIG. 1), thereby rotating the nozzle 31 around the core 11. The rotation of the nozzle 31 rotates the periphery of the core 11 at a double speed in the same direction as the rotation direction of the winding part 21.

  As a result, the wire 12 newly fed out from the nozzle 31 is simultaneously wound around the core 11 together with the wire 12 rewound in the direction indicated by the solid line arrow in FIG. At this time, the wire 12 newly fed out from the nozzle 31 is fed along the other flange portion 11b of the core 11, and is wound around the winding drum portion 11c with a bias toward the other flange portion 11b.

  On the other hand, the winding jig 18 is rotated by the motor 23 attached to the pedestal 13 shown in FIG. 1, and the wire 12 drawn out by moving the storage clamp device 53 away from the winding portion 21 is wound around the winding jig 18. Rewind to the core 11 provided in the part 21.

  When the actual rewinding is started, the storage movement mechanism 54 brings the clamp device 53 close to the winding part 21 at a speed substantially equal to the speed of the wire 12 to be rewound, and the wire 12 in the meantime bends. It is possible to prevent one of the α winding coils 17 from expanding.

  At this time, the coil spring 60 (FIG. 6) urges the storage clamp device 53 in a direction away from the winding jig 18, and between the amount of the wire 12 to be rewound and the movement amount of the clamp device 53. The error which arises is absorbed and the bending of the wire 12 between the clamp apparatus 53 and the core 11 is prevented reliably. At this time, the wire 12 rewound from the clamping device 53 is rewound along the one flange portion 11a of the core 11 and wound around the winding drum portion 11c along the one flange portion 11a.

  Thereby, the winding start wire 12a wound by the rotation of the winding portion 21 of the wire 12 drawn in advance by the clamping device 53 and the winding end wire 12b fed from the nozzle 31 and wound on the core 11 are wound. Thus, an α-winding coil 17 (FIG. 9) in which both are located on the outermost periphery is formed.

  And since the wire rod 12 forming the α-winding coil 17 is a coated conductor having an insulating coating that self-fuses, by blowing hot air with a hot air generator (not shown) and adjoining adjacent wire rods 12, The resulting α-winding coil 17 is prevented from collapsing.

<Wire cutting process>
In this step, the wire 12 at both ends of the α-winding coil 17 is cut to a predetermined length. This cutting is performed by the cutter blade plate 73, and the wire rod 12a at the beginning of winding and the wire rod 12b at the end of winding are cut simultaneously.

  First, the cutting of the wire 12a at the beginning of winding will be described. In this cutting, the storage clamp device 53 is moved by the storage storage moving mechanism 54, and as shown in FIG. 10, the wire 12a at the beginning of the winding extending from the storage clamp device 53 to the core 11 is connected to the wire holding plate. It passes through one slit 71 a formed in 71. Then, when the wire 12 reaches the parallel portion 71c from the expanded portion 71b, the wire 12 comes into contact with the blade edge 73a of the cutter blade plate 73 and is further pushed into the slit 71a, whereby the wire 12a at the beginning of the winding is cut. It will be.

  Then, the wire 12 a extending from the core 11 constituting the winding jig 18 to the cutter blade plate 73 is locked in a state where the cut end edge is inserted into the slit 71 a of the wire holding plate 71.

  The wire 12a reaches the α-winding coil 17 via the slit 71a in a state where the edge of the wire 12a remains in the parallel portion 71c. In this case, since the wire rod holding plate 71 is located obliquely below the α-winding coil 17, the edge of the wire rod 12a is in a state of being hooked on the parallel portion 71c.

  The degree of this latching is desirably such that the edge is easily removed when the α-winding coil 17 is removed from the recess 21a of the winding part 21 in the subsequent step.

  The adjustment of the degree of the latch is performed by setting the angle of the wire 12a reaching the wire rod holding plate 71 and the α-winding coil 17 to the position where the machine screw 72 is closed at the notch 73b of the cutter blade plate 73 and the notch 71e of the wire rod holding plate 71. It is possible to adjust by.

  Thereby, the edge of the cut wire 12a can be smoothly held and released up to the subsequent step without using a conventional holding mechanism such as a clamp or its opening / closing operation.

  Thereafter, the storage clamp device 53 is moved to the standby position by the storage movement mechanism 54 shown in FIG. 1, and the remaining wire 12 held by the storage clamp device 53 is separated from the storage clamp device 53. Then, it is discarded in a predetermined duct box (not shown).

  Even in the cutting of the wire rod 12b at the end of winding, as shown in FIG. 10, the nozzle 31 is moved by the nozzle moving mechanism 33 (FIG. 1), and the wire rod 12b at the end of winding extending from the nozzle 31 to the coil 17 is It passes through the other slit 71 a of the holding plate 71. Then, when the wire 12 reaches the parallel portion 71c from the expanded portion 71b, the wire 12 comes into contact with the blade edge 73a of the cutter blade plate 73 and is further pushed into the slit 71a, whereby the wire 12 at the end of winding is cut. It will be.

  Then, the wire 12 that has passed through the feed hole 31a of the nozzle 31 is drawn obliquely upward. Thereby, the winding end wire 12 is cut | disconnected by predetermined length.

  And the wire 12 extended from the core 11 which comprises the winding jig | tool 18 to the cutter blade board 73 is latched in the state in which the cut | disconnected edge is inserted in the slit 71a of the wire holding board 71. FIG.

  That is, even when the wire 12b at the end of the winding is cut, the wire 12b reaches the α-winding coil 17 via the slit 71a with the edge thereof remaining in the parallel portion 71c. In this case, since the wire rod holding plate 71 is located obliquely below the α-winding coil 17, the end of the wire rod 12b is hooked on the parallel portion 71c.

  The degree of this latching is desirably such that the edge is easily removed when the α-winding coil 17 is removed from the recess 21a of the winding part 21 in the subsequent step.

  The adjustment of the degree of the latch is performed by changing the angle of the wire 12b reaching the wire holding plate 71 and the α-coil 17 to the position where the machine screw 72 is closed at the notch 73b of the cutter blade plate 73 and the notch 71e of the wire holding plate 71. It is possible to adjust by.

  Thereby, the edge of the cut wire 12b can be smoothly held and released up to the subsequent step without using a conventional holding mechanism such as a clamp or its opening / closing operation.

  Thereafter, the nozzle 31 is moved to the standby position by the nozzle moving mechanism 33. Here, as shown in the enlarged view of FIG. 1, the end of the wire 12 that has passed through the feeding hole 31a of the nozzle 31 is drawn obliquely upward, so that the wire 12 is a hole of the feeding hole 31a. There is no return toward the tension device 42 until it is locked to the edge and the next winding is made.

  The α-winding coil 17 composed of the wire 12 wound around the core 11 in this manner is then removed from the concave portion 21a of the winding portion 21 together with the core 11, and is transported to the next step.

  And after (alpha) winding coil 17 is removed with the core 11, the core 11 is newly accommodated in the recessed part 21a of the winding part 21, and the next wire drawing-out process is started again.

  Here, although the wire rod 12b at the end of winding is cut, in this embodiment in which a so-called square wire is used as the wire rod 12, the nozzle 31 is rotated and wound in the previous α-coil forming step. The wire 12 composed of the square wire is twisted between the nozzle 31 and the nozzle 31. In order to eliminate this twist, after cutting the wire 12 at the beginning of winding, the nozzle 31 is rotated together with the winding part 21 in the opposite direction to that during winding to eliminate the twist. The number of rotations is the same as the number of rotations at the time of winding, and after the twist is eliminated, the next wire drawing process can be started again.

  As described above, in the present invention, the wire holding plate 71 and the cutter tooth plate 73 are provided around the winding jig 18, so that the storage clamp device 53 is moved by the storage moving mechanism 54. By inserting the extending wire rod 12 into the first or second slit 71a, the wire rod 12 can be cut. The nozzle 31 is moved in the triaxial direction by the nozzle moving mechanism 33, and the wire rod 12 extending therefrom is secondly moved. Alternatively, the wire 12 can be cut by being inserted through the first slit 71a.

  Therefore, the coil manufacturing apparatus 10 of the present invention does not use a nipper device or a three-axis movement mechanism that is conventionally required to cut the wire 12. Since the cutter blade plate 73 for cutting the wire 12 is a flat plate provided around the winding jig 18, the cutter blade plate 73 does not have a large size, and the cutter blade plate 73 together with the winding jig 18. Since it is rotated, an independent drive mechanism for operating the cutter blade plate 73 is not required. Therefore, the coil manufacturing apparatus 10 according to the present invention is a relatively small device that can cut the wire material 12a, 12b at the beginning or end of winding of the obtained coil 17 to a predetermined length.

  Further, the nozzle 31 is rotated in the same direction at a speed higher than the rotation speed of the winding part 21 by the winding jig 18, and the wire 12 fed from the nozzle 31 to the core 11 held by the winding part 21 and the accumulator. Since both of the wire rods 12 stored in the wire means 52 are wound, the α-winding coil 17 in which the wire rods 12a and 12b at the beginning and end of winding are both outer circumferences can be manufactured. Even if such an α-winding coil 17 is obtained, the wire rods 12a and 12b at the beginning or end of winding of the obtained coil 17 can be immediately cut to a predetermined length.

  Further, since the distance from the core 11 to the cutter blade plate 73 is the length to which the wire 12 is cut, it can be easily cut by changing the mounting position and size of the cutter blade plate 73 and the wire locking plate 71. It becomes possible to change the predetermined length of the wire 12 to be used.

  In particular, when the cutter blade plate 73 and the wire rod locking plate 71 are attached by the machine screw 72, the machine screw 72 is inserted into the notches 71e and 73b formed in the cutter blade plate 73 and the wire rod locking plate 71 and screwed to the body portion 20 to be attached. Therefore, by changing the position of the machine screw 72 in the longitudinal direction of the notches 71e and 73b, the attachment positions of the cutter blade plate 73 and the wire rod locking plate 71 can be changed relatively easily.

  In the above-described embodiment, the case where the α-winding coil 17 is manufactured by rotating the nozzle 31 at a speed faster than the rotation speed of the winding portion 21 has been described. The accumulator clamping device 53, which is the accumulating means 52, is rotated by the rotating means in the same direction at a speed faster than the rotating speed of the winding portion 21, and the winding α becomes the outer circumference of the winding wire ends 12a and 12b. The coil 17 may be manufactured. Even in this case, in the present invention, it is possible to immediately cut the wire 12a, 12b at the start or end of winding of the obtained coil with a predetermined length by the cutter blade plate 73 and the wire locking plate 71. become.

  In the above-described embodiment, the nozzle movement mechanism 33 and the storage movement mechanism 54 configured by a combination of the X-axis, Y-axis, and Z-axis direction expansion and contraction actuators have been described. The present invention is not limited to this, and other types may be used as long as the object can be moved in three axial directions.

  In the above-described embodiment, a case has been described in which a so-called square wire having a square cross section and a so-called heat fusion wire 12 in which a heat-fusible film is formed around the conductor body is used. The wire 12 is not limited to a square line, and its cross section may be a rectangle or a polygon, or may be a so-called round line that forms a circle.

  In the above-described embodiment, the case where the wire 11 is wound around the core 11 provided in the winding portion 21 to obtain the α-winding coil 17 has been described. However, the winding portion 21 is not provided without providing the core 11. Alternatively, the wire 12 may be directly wound around and the α-winding coil 17 may be formed around the winding portion 21. In this case, the winding portion 21 is preferably formed with a winding core around which the wire 12 is wound, instead of the recess 21 a that houses the core 11. The coil obtained by winding the wire 12 around the winding core is a so-called air-core coil composed of only the wire 12 without the core 11. In this case, the presser bar 22 can press the upper end of the core and limit the winding width of the core.

  In the above-described embodiment, the case where the winding process and the α-winding coil forming process are performed simultaneously has been described. That is, in the above-described embodiment, the wire 12 drawn by rotating the winding part 21 is wound around the core 11, and the nozzle 31 is rotated in the same direction at twice the rotation speed faster than the rotation of the winding part 21. The α-winding coil 17 was formed by winding the wire 12 fed from the nozzle 31 by being rotated around the core 11. However, the α winding coil forming step may be performed after the winding step.

  That is, the winding part 21 is rotated and the nozzle 31 is rotated in the same direction at the same rotational speed as that of the winding part 21, so that the drawn wire 12 is wound around the core 11 and first one coil. A winding step is performed to form Thereafter, the rotation of the winding part 21 is stopped and the rotation of the nozzle 31 is continued. The wire 12 fed from the nozzle 31 is wound around the core 11 which has stopped rotating, and the other coil is adjacent to the one coil. An α winding coil forming step is performed. Then, at the end of the α-winding coil forming process, the α-winding coil 17 composed of both coils is formed, and thus the α-winding coil forming process may be performed after the winding process. .

DESCRIPTION OF SYMBOLS 10 Coil manufacturing apparatus 12 Wire material 18 Winding jig | tool 31 Nozzle 32 Rotating means 33 Nozzle movement mechanism 53 Clamping apparatus 54 Storage movement mechanism 71 Wire material holding plate 71a Slit 71d Lateral slit 73 Cutter tooth plate

Claims (3)

A nozzle (31) for feeding out the wire (12);
A winding jig (18) for winding the wire (12) fed from the nozzle (31);
In a coil manufacturing apparatus comprising: a clamp device (53) that grips an end of the wire rod (12) fed from the nozzle (31);
A flat plate in which first and second slits (71a), which are attached around the winding jig (18) and through which the wire (12) can be inserted, are formed in parallel to the axial direction of the winding jig (18). Shaped wire rod holding plate (71),
A cutter tooth plate (73) capable of cutting the wire rod (12) inserted into the first and second slits (71a) by being polymerized on the wire rod holding plate (71);
The clamp device (53) is moved in three axial directions, and the wire rod (12) extending from the winding jig (18) to the clamp device (53) is either the first slit or the second slit (71a). A storage movement mechanism (54) inserted through one side,
The wire (12) extending from the winding jig (18) to the nozzle (31) by moving the nozzle (31) in the triaxial direction is set to one of the first and second slits (71a). A coil manufacturing apparatus comprising: a nozzle moving mechanism (33) for insertion. Rotating means (32) for rotating the nozzle (31) or the clamping device (53) around the winding jig (18),
The rotating means (32) rotates the nozzle (31) or the clamping device (53) in the same direction at a speed faster than the rotating speed of the winding jig (18), and the winding jig (18 ) And the wire rod (12) fed out from the nozzle (31) and the clamp device (53) are configured to take up both the wire rod (12) previously grasped and pulled out from the nozzle (31). Item 2. The coil manufacturing apparatus according to Item 1.   The transverse slit (71d) that communicates with the first and second slits (71a) and goes directly to the first and second slits (71a) is provided on the wire holding plate (71). Coil manufacturing equipment.

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