TWI575543B - Coil manufacturing device - Google Patents

Description

Coil manufacturing device

The present invention relates to a coil manufacturing apparatus for winding a wire fed from a nozzle to manufacture a coil.

Conventionally, a chip coil for use in a small electronic device or the like has been known. The chip coil includes a coil formed of a wire wound around a main body portion of a core portion having a flange portion at a tip end portion, and a wire rod at the end portion of the coil is fixed to an electrode formed on the flange portion. The apparatus for manufacturing such a sheet-like coil includes, for example, a wire feeder that feeds a wire from a nozzle at a constant tension and a support core, and rotates together with the core, and the wire fed from the nozzle is taken up in the rotation. The winding jig of the core (refer to, for example, JP2007-266578A).

In the coil manufacturing apparatus, the core is held by the winding jig, and the winding jig is rotated together with the core, and the wire member is held by the wire holding member and is led to the other side of the flange portion. After moving, the wire fed from the mouth is then wound around its core for winding.

Moreover, after the winding of the chip coil is completed, the nozzle portion is pulled out toward the flange portion side on which one of the electrodes is formed, thereby winding the wire to be finished toward the flange portion side of the one side. Pull out.

Moreover, in the apparatus for manufacturing the chip coil, the wire holding member is moved simultaneously with the pulling operation of the wire to be wound, and the wire wound from the other side of the flange portion is moved to one side. On the side of the flange portion, the wire to be wound is drawn until the one side is formed The side of the electrode of the flange portion. Thereafter, the wire at the end of the coil is fixed to the electrode formed on the flange portion by welding. Next, the residual wire is tightened and cut in the vicinity of the electrode by moving the mouth and the wire holding member away from the core.

As described above, in the conventional coil manufacturing apparatus, the wire rod at the end portion of the coil is guided by the electrode by moving the wire holding member of the wire member or the wire holding member that initially winds the wire wound at the beginning of the wire. Or be cut tight.

On the other hand, in recent years, the movement of the nozzle or the wire holding member has caused a situation in which the wire at the end of the coil cannot be handled correctly. In this case, after the wire of the coil end is cut into a predetermined length, the wire which remains from the end of the coil with a predetermined length is actually subjected to welding or the like thereafter. Then, in this case, the wire is three-dimensionally moved by the three-axis moving mechanism to enable the clamping device that cuts the wire by electric or fluid pressure, and the wire is clamped between the cutting teeth by one of the clamping devices. The pair of cutting teeth are closed by being closed to each other (see, for example, JP2012-80037A).

However, in the wire cutting device of the conventional coil manufacturing apparatus described above, since the clamp device is moved by the three-axis moving mechanism, the three-axis moving mechanism is large, and the overall size of the device is increased.

In particular, in recent years, in the so-called α-winding coil in which the wire which is wound and finished winding is located on the outer circumference of the coil, the wire which is wound and finished to be wound by welding is fixed to the flange portion. The case of the electrode. In this case, in order to perform the treatment of the wire, there is a tendency that the length of the wire remaining from the end of the coil is short. That is, it is necessary to cut the starting and winding of the coil from the distance from the coil, and therefore, it is necessary to use a three-axis moving machine. The clamping device is moved to the vicinity of the coil. Thus, in order to avoid contact with the coil, the movement caused by the three-axis moving mechanism of the chucking device becomes complicated, and the time taken for the terminal processing increases, making it difficult to perform rapid processing.

SUMMARY OF THE INVENTION An object of the present invention is to provide a coil manufacturing apparatus of a smaller type which can immediately cut a wire which is wound at the beginning or end of winding of the obtained coil by a predetermined length.

According to an embodiment of the present invention, a coil manufacturing apparatus includes: a nozzle portion that feeds a wire; a winding jig that winds a wire that is fed from the nozzle; and a holding device that grips an end portion of the wire that is fed from the nozzle; the wire is held The plate is mounted around the winding fixture, and forms a first and a second slit through which the wire material can be inserted in parallel with the axial direction of the winding fixture; the cutter tooth plate is overlapped on the wire holding plate and can be cut Disconnecting the wires of the first and second slits; the wire moving mechanism moves the clamping device in the three-axis direction to allow the wires extending from the winding fixture to the clamping device to be inserted into the first and second slits And the mouth moving mechanism moves the mouth in the three-axis direction so that the wire extending from the winding jig to the mouth is inserted into the other of the first and second slits.

10‧‧‧Coil manufacturing equipment

11‧‧‧ core

12, 12a, 12b‧‧‧ wire

13‧‧‧ pedestal

14‧‧‧ pillar

16‧‧‧Abutment

17‧‧‧α winding coil

18‧‧‧Winning fixture

19‧‧‧ mandrel

20‧‧‧ Body Department

21‧‧‧Winding Department

22‧‧‧ Pressing bar

23‧‧‧Motor

24a‧‧‧First pulley

24b‧‧‧second pulley

24c‧‧‧Leather

31‧‧‧ mouth

31a‧‧‧Send hole

32‧‧‧Motor

32a‧‧‧third pulley

32b‧‧‧fourth pulley

32c‧‧‧Leather

33‧‧‧Mouth movement mechanism

34‧‧‧X-axis direction telescopic actuator

34a‧‧‧Servo motor

34b‧‧‧Rolling screw

34c‧‧‧ Followers

34d‧‧‧shell

35‧‧‧Y-axis direction telescopic actuator

35a‧‧‧Servo motor

35b‧‧·ball screw

35c‧‧‧ Followers

35d‧‧‧shell

36‧‧‧Z-axis direction telescopic actuator

36a‧‧‧Servo motor

36b‧‧‧Rolling screw

36c‧‧‧ Followers

36d‧‧‧shell

38‧‧‧support plate

39‧‧‧Rotating components

39a‧‧‧ inserted through hole

40‧‧‧Installation components

41a~41c‧‧‧ pulley

42‧‧‧ Tension device

43‧‧‧Installation feet

44‧‧‧Box

45‧‧‧Cylinder

46‧‧‧ Tension bar

46a‧‧‧Wire Guides

46b‧‧‧Rotary axis

46c‧‧‧ bracket

47‧‧‧Control motor

48‧‧‧potentiometer

49‧‧‧ Spring

50‧‧‧moving components

51‧‧‧Tensor adjustment screw

51a‧‧‧Male screw

52‧‧‧ Storage means

53‧‧‧ Storage line clamping device

53a, 53b‧‧‧ holding film

54‧‧‧ Storage line moving mechanism

55‧‧‧X-axis direction telescopic actuator

55a‧‧‧Servo motor

55b‧‧·ball screw

55c‧‧‧ Followers

55d‧‧‧shell

56‧‧‧Y-axis direction telescopic actuator

56a‧‧‧Servo motor

56b‧‧‧Rolling screw

56c‧‧‧ Followers

56d‧‧‧shell

57‧‧‧Z-axis direction telescopic actuator

57a‧‧‧Servo motor

57b‧‧‧Rolling screw

57c‧‧‧ Followers

57d‧‧‧Shell

58‧‧‧Mobile board

59‧‧‧ Track

60‧‧‧ coil spring

61‧‧‧moving components

62‧‧‧Tensor adjustment screw

62a‧‧‧Male screw

71‧‧‧Wire retaining plate

71a‧‧‧slit

71b‧‧‧Extension

71c‧‧‧Parallel

71d‧‧‧ transverse slit

71e‧‧‧ gap

72‧‧‧Small bolts

73‧‧‧ cutting blade

73a‧‧‧blade front

73b‧‧‧ gap

Fig. 1 is a front view showing a coil manufacturing apparatus according to an embodiment of the present invention.

Fig. 2 is a side view showing the coil manufacturing apparatus.

Fig. 3 is a partial cross-sectional view showing a portion A of Fig. 1 showing a winding jig.

Figure 4 is a cross-sectional view taken along line B-B of Figure 3 showing the wire retaining plate.

Figure 5 is a cross-sectional view taken along line C-C of Figure 3 showing the cutter blade.

Fig. 6 is a cross-sectional view taken along line D-D of Fig. 1 showing the storage means.

Fig. 7 is a view showing a state in which the wire fed out from the mouth is pulled out.

Fig. 8 is a view corresponding to Fig. 7 in a state in which the wire after the drawing is taken along the core.

Fig. 9 is a perspective view showing a state in which an α-winding coil is produced.

Fig. 10 is a perspective view showing a state in which a wire drawn from a coil is cut.

Next, an embodiment of the present invention will be described based on the drawings.

The coil manufacturing apparatus 10 according to the embodiment of the present invention is shown in Figs. 1 and 2 . Here, a coil manufacturing apparatus 10 in which three axes of X, Y, and Z orthogonal to each other are set will be described. The X-axis extends in the horizontal and horizontal directions, the Y-axis extends in the horizontal transverse direction, and the Z-axis extends in the vertical direction.

The coil manufacturing apparatus 10 includes a winding jig 18 that rotates to wind up the wire 12 . In the present embodiment, the wire member 12 is a so-called hot-melt wire in which a heat-fusible film is formed around the wire main body. After the hot air is blown onto the wire 12, the surface film of the wire 12 is melted and intersects the surface film of the adjacent wire 12. After the surface film is cooled and solidified, the adjacent wires 12 are followed by each other to maintain their shape.

This coil manufacturing device 10 has a horizontal pedestal 13. The pedestal 13 is horizontally provided with a base 16 through the struts 14, and the take-up jig 18 extends in the vertical direction and is pivotally supported by the base 16.

As shown in FIG. 3, the winding jig 18 includes a mandrel 19 pivotally supported by the base 16, a body portion 20 coaxially disposed at an upper end of the mandrel 19, and a roll coaxially disposed at an upper end of the body portion 20. Winding part 21. The body portion 20 has a square shape in cross section. At the upper end of the winding portion 21, the core portion 11 of the wound wire 12 is housed.

The core portion 11 has flange portions 11a and 11b formed at the end portion of the main body portion 11c. Further, a concave portion 21a for accommodating one of the flange portions 11a of the core portion 11 is formed on the winding portion 21.

As shown in Fig. 1, the coil manufacturing apparatus 10 is provided with a rotating means for rotating the winding jig 18. This rotating means has a motor 23 attached to the pedestal 13, and a first pulley 24a is provided on the rotating shaft of the motor 23. The mandrel 19 (Fig. 3) protrudes below the base 16, and the second pulley 24b is attached to the mandrel 19. Next, a belt 24c is wound between the first pulley 24a and the second pulley 24b. After the motor 23 is driven, the winding jig 18 is rotated by the first pulley 24a, the belt 24c, and the second pulley 24b.

As shown in FIGS. 1 and 2, the coil manufacturing apparatus 10 includes a wire feeder that feeds the wire 12 with a constant tension. The wire feeder includes a mouth portion 31 through which the wire member 12 is inserted, a rotation mechanism 32 that rotates the mouth portion 31, a mouth movement mechanism 33 that moves the mouth portion 31 together with the rotation mechanism 32 in the three-axis direction, and The wire 12 is given a tension tensioning device 42.

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

A substantially crank-shaped mounting member 40 is attached to the rotating member 39 below the support plate 38. The pressing rod 22 (FIG. 1), which is coaxial with the rotation axis of the rotating member 39, extends downward and is attached to the mounting member 40. The mouth portion 31 is fixed to the lower portion of the mounting member 40 from the rotation axis of the rotating member 39.

The mouth portion 31 has a hexahedron shape, and a delivery hole 31a is formed in a lower portion thereof. The wire 12 is inserted into the delivery hole 31 in the horizontal direction. This delivery hole 31a is formed from the outer side of the rotating member 39 toward the center of rotation of the rotating member 39. The mouth 31 is separated from the center of rotation of the rotating member 39 to the rotation The circle drawn by the mouth portion 31 when the member 39 is rotated is sufficient to surround the core portion 11 supported by the winding portion 21.

Further, the pressing rod 22 is moved by the mouth moving mechanism 33, and the other flange portion 11c (FIG. 3) of the core portion 11 of one flange portion 11a is housed in the concave portion 21a of the upper end of the winding portion 21. The delivery hole 31a of the hexahedral nozzle portion 31 faces the main body portion 11b of the core portion 11 in a state where the pressing rod 22 presses the other flange portion 11c (Fig. 8).

An insertion hole 39a is formed in the center of rotation of the rotating member 39. This insertion hole 39a is formed such that the wire 12 can be inserted. Next, the pulley 41a is attached to the lower portion of the rotating member 39, and the pulleys 41b, 41c are attached to the mounting member 40. The pulleys 41a to 41c pull the wire 12 inserted through the insertion hole 39a formed in the vertical direction and are guided to the delivery hole 31a of the nozzle portion 31.

Then, the wire 12 wound by the pulleys 41a to 41c is inserted into the delivery hole 31a of the nozzle portion 31 from the outside toward the center of the rotating member 39.

As shown in FIG. 1, the rotating mechanism 32 that rotates the mouth portion 31 has a motor 32 attached to the support plate 38. A third pulley 32a is provided on the rotating shaft of the motor 32, and a fourth pulley 32b is attached to the rotating member 39 that protrudes above the support plate 38. A belt 32c is wound between the third pulley 32a and the fourth pulley 32b. After the motor 32 is driven, the rotating member 39 rotates together with the nozzle portion 31 through the third pulley 32a, the belt 32c, and the fourth pulley 32b. The mouth portion 31 is moved in the triaxial direction by the mouth portion 31 together with the rotation mechanism 32, and the support plate 38 is moved in the three-axis direction with respect to the pedestal 13.

As shown in Fig. 2, the mouth movement mechanism 33 in the present embodiment is constituted by a combination of the X-axis, the Y-axis, and the Z-axis direction expansion and contraction actuators 34 to 36.

Each of the telescopic actuators 34 to 36 constituting the mouth moving mechanism 33 has a slender shape. The box-shaped outer casings 34d to 36d, the ball screws 34C to 36b extending in the longitudinal direction inside the outer casings 34d to 36d, and the followers 34c to 36c screwed in parallel to the ball screws 34b to 36b. The ball screws 34b to 36b are rotated by the servo motors 34a to 36a. Then, the respective telescopic actuators 34 to 36 drive the servo motors 34a to 36a to rotate the ball screws 34b to 36b, and the followers 34c to 36c screwed to the ball screws 34b to 36b are along the outer casing 34d. The long side of 36d moves.

In the present embodiment, the support plate 38 provided with the nozzle portion 31 is attached to the follower 36c of the Z-axis direction expansion and contraction actuator 36, thereby being movable in the Z-axis direction. The outer casing 34d of the X-axis direction expansion and contraction actuator 34 is attached to the outer casing 36d of the Z-axis direction expansion and contraction actuator 36 through the L-shaped angle 33a, whereby the support plate 38 can be moved to the X-axis together with the Z-axis direction expansion and contraction actuator 36. Move in direction.

Further, the follower 34c of the X-direction telescopic actuator 34 is attached to the follower 35c of the Y-axis direction expansion actuator 35, whereby the support plate 38 can be extended with the X-axis and Z-axis directions. 34, 36 move together in the Y-axis direction.

Further, the outer casing 35d of the Y-axis direction expansion and contraction actuator 35 extends in the Y-axis direction, and is fixed to the pedestal 13 through the support post 33b.

The servo motors 34a to 36a of the respective telescopic actuators 34 to 36 are connected to a control output of a controller (not shown) that controls these.

As shown in FIG. 1, the tensioning device 42 can apply tension to the wire 12 that is fed out and pull back the wire 12.

The tension device 42 in the present embodiment includes a case body 44 that is provided through the mounting leg 43, and a tubular body 45 and a tension bar 46 that are provided on the side surface of the case body 44.

The wire 12 is wound around the cylinder 45. The delivery control motor 47 provided inside the casing 44 rotates the cylinder 45 to feed the wire 12. The wire 12 sent from the cylinder 45 is guided to the sheet The wire guide 46a at the front end of the lever 46.

The wire 12 guided to the wire guide 46a is disposed to penetrate the insertion hole 39a of the rotating member 39 from the wire guide 46a.

The tension rod 46 can be rotated with the base end rotation shaft 46b as a fulcrum. The rotation angle of the rotation shaft 46b is detected by a potentiometer 48 housed in the casing 44 and mounted on the rotation shaft 46b as a rotation angle detecting means. The detection output of the potentiometer 48 is input to a controller (not shown), and the control output from the controller is input to the control motor 47.

Further, one end of the spring 49 is attached to a predetermined position between the rotary shaft 46b of the tension rod 46 and the wire guide 46a through the bracket 46c. The spring 49 is an elastic member that imparts elastic pressure to the direction of rotation of the tension bar 46 as an elastic member.

The elastic force acts on the tension bar 46 in accordance with the angle of rotation by the elastic member, that is, the spring 49. The other end of this spring 49 is fixed to the moving member 50.

This moving member 50 is screwed to the male screw 51a of the tension adjusting screw 51. The position of the moving member 50 is adjusted in accordance with the rotation of the male screw 51a. As described above, the fixed position of the other end of the spring 49 can be displaced, and by the elastic pressure of the spring 49, the tension rod 46 is moved to a position shown by, for example, a chain of dots. The tension imparted to the wire 12 is adjusted by the tensioning lever 46.

The controller (not shown) controls the delivery control motor 47 such that the rotation angle detected by the potentiometer 48, which is the rotation angle detecting means, is a predetermined angle.

Therefore, in the tension device 42, the tension is applied to the wire 12 by the spring 49 through the tension bar 46. The cylinder 45 is rotated to bring the tension rod 46 to a predetermined angle, thereby feeding out the wire 12 of a predetermined amount. Therefore, the tension of the wire 12 is maintained at a predetermined value.

Further, the coil manufacturing apparatus 10 is provided with a line for pulling a predetermined number of turns from the mouth portion 31. The material 12 is stored with the storage means 52. The storage means 52 includes a storage line clamping device 53 configured to hold the wire member 12, and a storage line moving mechanism 54 for moving the wire holding device 53 in the three-axis direction.

The wire holding device 53 of the wire storage mechanism 52 has the holding pieces 53a and 53b (FIG. 6) that open and close by supplying or discharging compressed air, and the wire 12 fed from the mouth 31 is gripped by the holding pieces 53a and 53b.

The wire holding device 53 extends in the Y-axis direction so as to face the mouth portion 31, and is provided on the moving plate 58. The front ends of the holding pieces 53a and 53b are bent upward by the holding pieces 53a and 53b of the wire holding device 53 facing the mouth portion 31. Further, compressed air is supplied or discharged to the holding device 53 by an instruction 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 gripping device 53 is attached to the rail 59 so as to be movable in the Y-axis direction in a state in which the gripping pieces 53a and 53b protrude toward the winding jig 18 side (Fig. 1).

Further, one end of the coil spring 60 is attached to the wire holding device 53, and the other end of the coil spring 60 is fixed to the moving member 61. This moving member 61 is screwed to the male screw 62a of the tension adjusting screw 62. The position of the moving member 61 is adjusted in accordance with the rotation of the male screw 62a.

Further, the coil spring 60 biases the wire holding device 53 in a direction away from the winding jig 18. The storage line moving mechanism 54 (FIG. 1) is configured to move the moving plate 58 together with the wire holding device 53 in the three-axis direction.

Referring again to Figure 1. The storage line moving mechanism 54 has the same structure as the above-described mouth movement mechanism 33, and is configured by a combination of the X-axis, the Y-axis, and the Z-axis direction expansion and contraction actuators 55 to 57.

In the present embodiment, the moving plate 58 provided with the wire holding device 53 is attached to the outer casing 56d of the Y-axis direction stretching actuator 56, thereby being movable in the Y-axis direction. The follower 56c of the Y-axis direction expansion and contraction actuator 56 is attached to the outer casing 57d of the Z-axis direction expansion and contraction actuator 57, whereby the moving plate 58 can move together with the Y-axis direction expansion and contraction actuator 56 in the Z-axis direction.

Further, the follower 57c of the Z-axis direction expansion actuator 57 is attached to the follower 55c of the X-axis direction expansion actuator 55, whereby the movable plate 58 can be extended with the Y-axis and Z-axis directions. 56, 57 move together in the X-axis direction.

Further, the outer casing 55d of the X-axis direction expansion and contraction actuator 55 extends in the X-axis direction and is fixed to the pedestal 13.

Each of the servo motors 55a to 57a of the respective telescopic actuators 55 to 57 is connected to a control output of a controller (not shown) for controlling these.

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

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

As shown in FIGS. 3 and 10, the wire holding plate 71 is attached to the upper end of the body portion 20 by a small bolt 72 so as to protrude from the upper end of the body portion 20.

As shown in FIG. 4 and FIG. 10, a portion of the wire holding plate 71 that protrudes upward from the upper end of the main body portion 20 is formed to extend in the axial direction from the upper cymbal to the mandrel 19 (see FIG. 3) with a predetermined interval therebetween. A pair of slits 71a.

The slit 71a has a flared portion 71b that is enlarged toward the upper jaw width and a parallel portion 71c that has a width substantially the same as the outer diameter of the wire at the lower end of the flared portion 71b.

Further, in the lower portion of the wire holding plate 71 which is superposed on the main body portion 20 of the winding jig 18, the wire holding plate 71 is attached to the main body portion 20 through the small bolt 72, and the small bolt is extended upward from the lower jaw. 72 can enter the gap 71e.

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

The cutting blade 73 has a square shape, and a blade leading edge 73a is formed on one of the upper sides of the cutting blade 73. Further, in the lower portion of the cutting blade 73, the cutting blade 73 is attached to the main body portion 20 through the small bolt 72, and the notch 73b into which the small bolt 72 can enter is extended upward from the lower jaw.

The notch 73b in the cutting blade 73 is formed corresponding to the notch 71e in the wire holding plate 71. That is, in a state in which the wire holding plate 71 is overlapped with the cutting blade 73, the notches 71e and 73b are aligned. Although not shown, a female bolt is formed in the main body portion 20, and a small bolt 72 through which the notches 71e and 73b are inserted is screwed to the female bolt.

As shown in Fig. 10, the cutting blade 73 is attached to the wire holding plate 71 so as to be attached to the wire holding plate 71 so that the wire 12 entering the parallel portion 71c from the flared portion 71b of the slit 71a is in contact with the blade leading edge 73a. Therefore, the cutting blade 73 enters the slit 71a in the wire holding plate 71 to cut the wire 12 contacting the blade leading edge 73a.

Next, a cross slit 71d that is continuous with the first and second slits 71a and that is continuous with the first and second slits 71a is connected to the wire holding plate 71. This lateral slit 71d is formed along the blade leading edge 73a. The wire 12 that has entered the lateral slit 71d moves along the blade leading edge 73a and is cut in contact with the blade leading edge 73a.

Moreover, this coil manufacturing apparatus 10 is provided with the winding part 21 provided in the winding jig 18 The wire 12 wound by the core portion 11 is blown by a hot air generator (not shown). The hot air blowing nozzle in the hot air generator is disposed to face the core portion 11.

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

In the coil manufacturing apparatus 10 of the present embodiment, a wire drawing step of holding the wire 12 fed from the nozzle portion 31 of the wire feeding device and pulling out a predetermined strength can be performed, and the winding jig 20 can be rotated and the drawn wire 12 can be wound. The winding member 12 is wound around the core portion 11 of the winding portion 21, the nozzle portion 31 is rotated in the same direction as the rotation direction of the core portion 11, and the wire member 12 fed from the nozzle portion 31 is wound around the core portion 11 to The α-winding coil forming step of forming the α-winding coil 17 and the wire cutting step of cutting the wires 12a and 12b wound around the both ends of the α-winding coil 17 into a predetermined length. Hereinafter, each step will be described in detail.

<Wire Pulling Step>

The wire drawing step maintains the wire 12 fed from the mouth 31 and pulls out a predetermined strength. The wire 12 is wound around the tubular body 45. The wire 12 fed from the cylinder 45 is guided to the wire guide 46a at the tip end of the tension bar 46, and is wired so as to pass through the insertion hole 39a of the rotating member 39 from the wire guide 46a.

The wire 12 in the present embodiment has a cross section of a square which is a so-called angle line. The wire 12 that penetrates the insertion hole 39a passes through the delivery hole 31a of the nozzle portion 31.

Next, the wire 12 passing through the delivery hole 31a is pulled out so that its end portion faces obliquely upward as shown in an enlarged view of FIG. By bending the wire 12 obliquely upward, the wire 12 can be prevented from being locked to the edge of the hole of the delivery hole 31a, and the wire 12 can be returned toward the tension device 42 side.

In the wire drawing step, the wire holding device 53 is moved by the wire moving mechanism 54, and the wire 12 fed from the mouth portion 31 and bent obliquely upward is held by the holding pieces 53a, 53b.

Thereafter, the wire holding device 53 is moved again by the wire moving mechanism 54, and as shown in Fig. 7, the wire holding device 53 is pulled away from the mouth portion 31. As a result, the wire 12 of a predetermined length is pulled out from the mouth portion 31.

This predetermined length is the length of the wire 12 required to wind the coil of one of the α winding coils 17 (Fig. 10) to be produced. When the wire 12 is pulled out at a substantially predetermined length, the wire holding device 53 stops moving, and the wire drawing step ends.

<Winding step and α winding coil forming step>

In the present embodiment, the case where the winding step and the α winding coil forming step are simultaneously performed is shown.

In the present embodiment, the case where the wire member 12 is wound around the core portion 11 will be described. First, the flange portion 11a of one of the core portions 11 is housed in the recess portion 21a in the upper end of the winding portion 21.

Next, the mouth moving mechanism 33 moves the pressing rod 22 together with the mouth portion 31, and the pressing rod 22 presses the convex portion 21a of the upper end of the winding portion 21 to accommodate the other convex portion of the core portion 11 of one of the flange portions 11a. Edge 11c (Fig. 3).

Specifically, in the mouth moving mechanism 33 shown in FIGS. 1 and 2, the rotating member 39 provided with the nozzle portion 31 is moved above the winding portion 21, and the rotation center of the rotating member 39 is aligned with the winding portion 21. The center of rotation. The mouth moving mechanism 33 lowers the rotating member 39 in this state, and presses the upper portion of the core portion 11 by the pressing rod 22 provided coaxially with the rotation center of the rotating member 39.

In this way, the core portion 11 is provided on the winding portion 21. Next, in a state where the other flange portion 11c is pressed by the pressing rod 22, the feeding hole 31a of the hexahedral nozzle portion 31 faces the main body portion 11b of the core portion 11.

As shown in FIG. 8, the wire holding device 53 moves so that the wire 12 pulled out from the nozzle portion 31 moves along the core portion 11 provided in the winding portion 21. The movement of the wire holding device 53 is performed by the wire moving mechanism 54 (Fig. 1).

Next, as shown in FIG. 9, while the winding jig 18 is rotated, the mouth portion 31 is rotated in the same direction as the rotation direction of the winding jig 18 at a rotation speed twice as fast as the rotation speed of the winding portion 21. . As a result, the wire 12 pulled out in the wire drawing step is wound back to the core portion 11 provided in the winding portion 21, and the wire 12 newly fed from the nozzle portion 31 is wound around the core portion 11, and An α winding coil 17 is formed.

The mouth portion 31 is rotated by a rotating member 39 provided with the nozzle portion 31 by a motor (Fig. 1). Thereby, the mouth portion 31 is wound around the core portion 11. The winding of the mouth portion 31 around the core portion 11 is performed in the same direction as the rotation direction of the winding portion 21 and at twice the rotation speed of the winding portion 21.

Thereby, the wire 12 newly fed from the nozzle portion 31 is simultaneously wound around the core portion 11 together with the wire member 12 which is wound back from the holding device 53 in the direction indicated by the solid arrow in FIG. At this time, the wire 12 newly fed from the nozzle portion 31 is sent along the other flange portion 11b of the core portion 11, and is biased toward the other flange portion 11b to be wound around the main body portion 11c.

On the other hand, the winding jig 18 is rotated by the motor 23 attached to the pedestal 13 shown in FIG. In the wire drawing step, the wire 12 pulled out from the winding portion 21 by the winding portion 21 is pulled back to the core portion 11 of the winding portion 21.

After the actual winding back is started, the storage moving mechanism 54 brings the holding device 53 closer to the winding portion 21 at a speed substantially equal to the speed of the wound wire 12. Thereby, the wire 12 is not bent between the holding device 53 and the core 11, and the α winding coil 17 can be prevented from being produced. One of the square coils expands.

At this time, the coil spring 60 (FIG. 6) biases the wire holding device 53 in a direction away from the winding jig 18, absorbing the amount of the wire 12 that is wound back and the amount of movement of the holding device 53. The resulting error, while reliably preventing the bending of the wire 12 between the clamping device 53 and the core 11. At this time, the wire member 12 held by the holding device 53 is wound back along the flange portion 11a of one of the core portions 11 to the main body portion 11c, and is wound around the main body portion 11c along the one flange portion 11a.

Thereby, the α winding coil 17 is formed. Both the wire 12a to be wound and the wire 12b to be wound are located on the outermost periphery of the α-winding coil 17 (Fig. 9). The wire 12a to be wound up is a portion of the wire 12 which is pulled out by the holding device 53 and which is not wound by the rotation of the winding portion 21, and remains. The wire 12b that has been wound up is a portion of the wire 12 newly fed from the nozzle portion 31 that is not wound around the core portion 11 and remains.

Then, the wire 12 of the α-winding coil 17 is formed, and since the insulated wire coated with the self-welding is coated, the hot air is blown by a hot air generator (not shown) to prevent the adjacent wires 12 from coming to each other, thereby preventing The resulting α-winding coil 17 is disintegrated.

<Wire cutting step>

In the wire cutting step, the wires 12 at both ends of the α-winding coil 17 are cut into a predetermined length. This cutting is performed by the cutting blade 73, and the wire 12 which is started to be wound and the wire 12 which is wound up are simultaneously cut.

First, the cutting of the wire 12a to be wound up will be described. When this cutting is performed, the wire storage moving mechanism 54 moves the wire holding device 53, and as shown in FIG. 10, the wire 12a which is wound from the wire holding device 53 to the start of the core portion 11 is formed. The slit 71a is formed in one of the wire holding plates 71. Then, the wire 12 is connected at the stage of reaching the parallel portion 71c from the flared portion 71b. The blade leading edge 73a of the cutting blade 73 is touched, and is further pressed into the slit 71a. As a result, the wire 12a to be wound is cut.

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

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

The degree of the hooking is preferably such an extent that the end turn can be easily detached from the parallel portion 71c when the α-winding coil 17 is detached from the concave portion 21a of the winding portion 21 in the subsequent step.

The extent of this hanging can be adjusted by changing the angle between the wire holding plate 71 and the wire 12a reaching the α winding coil 17. Moreover, when the small bolts 72 are locked to attach the cutter blade 73 and the wire holding plate 71 to the main body portion 20, the gap 73b of the cutting blade 73 and the notch 71e of the wire holding plate 71 can be changed. The position of the bolt 72 is adjusted.

Thereby, the end of the wire 12a to be cut can be maintained to the subsequent step without using a holding mechanism such as a conventionally used clamp. Therefore, the opening and closing operation of the holding mechanism such as the gripping is not required, and the end of the wire 12a can be smoothly held and the holding can be released.

Thereafter, the storage line moving mechanism 54 shown in Fig. 1 moves the wire holding device 53 to the standby position. The wire holding device 53 releases the wire 12 of the remaining portion held by the wire holding device 53 and discards it to a predetermined unillustrated pipe box.

When the winding of the wound wire 12b is completed, as shown in Fig. 10, the mouth moving mechanism 33 (Fig. 1) moves the mouth 31 to extend from the mouth 31 to the end of the coil 17. The wound wire 12b passes through the other slit 71a of the wire holding plate 71. Next, the wire 12b comes into contact with the blade leading edge 73a of the cutter blade 73 at the stage of reaching the parallel portion 71c from the flared portion 71b. The wire 12b that has been wound up is further pressed into the slit 71a, thereby being cut.

At this time, the wire 12 that has passed through the delivery hole 31a of the mouth portion 31 is pulled out obliquely upward. Thereby, the end of the wound wire 12 is cut at a predetermined length.

Then, the wire 12b extending from the core portion 11 constituting the winding jig 18 to the cutting blade 73 is locked with the cut end 縁 inserted into the slit 71a of the wire holding plate 71.

That is, when the winding of the wound wire 12b is completed, the wire 12b reaches the α-winding coil 17 via the slit 71a while the end turns remain in the parallel portion 71c. In this case, since the wire holding plate 71 is located obliquely below the α-winding coil 17, the end turn of the wire 12b is in a state of being caught by the parallel portion 71c.

The degree of the hooking is preferably such an extent that the end turn can be easily detached from the parallel portion 71c when the α-winding coil 17 is detached from the concave portion 21a of the winding portion 21 in the subsequent step.

The extent of this hanging can be adjusted by changing the angle between the wire holding plate 71 and the wire 12a reaching the α winding coil 17. Moreover, when the small bolts 72 are locked to attach the cutter blade 73 and the wire holding plate 71 to the main body portion 20, the gap 73b of the cutting blade 73 and the notch 71e of the wire holding plate 71 can be changed. The position of the bolt 72 is adjusted.

Thereby, the end of the cut wire 12b can be held to the subsequent step without using a holding mechanism such as a conventionally used clamp. Therefore, the opening and closing operation of the holding mechanism such as the gripping is not required, and the end of the wire 12b can be smoothly held and the holding can be released.

Thereafter, the mouth moving mechanism 33 moves the mouth portion 31 to the standby position. Here, The wire 12 passing through the delivery hole 31a of the mouth portion 31 is drawn as shown in the enlarged view of Fig. 1, and its end portion is located obliquely upward. Therefore, the wire 12 is locked to the hole of the delivery hole 31a, and does not return to the tension device 42 side until the next winding is performed.

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

Next, after the α-winding coil 17 is removed from the winding portion 21 together with the core portion 11, the new core portion 11 is accommodated in the concave portion 21a of the winding portion 21, and the next wire pulling step is resumed.

In the present embodiment in which the wire 12 is a so-called angle line, in the previous α-winding coil forming step, the nozzle portion 31 is rotated to perform winding. Therefore, the wire 12 composed of the corner line between the tubular body 45 and the mouth portion 31 is twisted. In order to eliminate the twist, after the wire 12 that has been wound is cut, the rotation mechanism 32 rotates the nozzle portion 31 together with the winding portion 21 in the opposite direction to the winding, and as a result, the distortion can be eliminated. The number of rotations in the distortion elimination is the same as the number of rotations in the winding. After eliminating this distortion, the next wire pulling step can be started again.

As described above, in the present embodiment, the wire holding plate 71 and the cutter tooth plate 73 are provided around the winding jig 18. Therefore, the wire storage moving mechanism 54 moves the wire holding device 53 and inserts the wire 12 extending from the wire holding device 53 into the first or second slit 71a, whereby the wire 12 can be cut. Further, the mouth moving mechanism 33 moves the nozzle portion 31 in the three-axis direction and allows the wire member 12 extending from the wire holding device 53 to be inserted into the second or first slit 71a, whereby the wire member 12 can be cut.

Therefore, the coil manufacturing apparatus 10 of the present embodiment does not require a conventional holding device or a three-axis moving mechanism that is necessary for cutting the wire member 12. The cutting blade 73 that cuts the wire 12 is smaller than the holding device because it is attached to the flat member around the winding jig 18. also, Since the cutting blade 73 rotates together with the winding jig 18, an independent driving mechanism for operating the cutting blade 73 is not required. Therefore, according to the present embodiment, it is possible to provide a small-sized coil manufacturing apparatus 10 capable of cutting the wire 12a, 12b which is wound up or finished at the beginning of the obtained coil 17 by a predetermined length.

Further, in the present embodiment, the nozzle portion 31 is rotated in the same direction as the rotation direction of the winding portion 21 at a speed at which the winding speed of the winding portion 21 of the winding jig 18 is fast, so as to be in the winding portion. The core portion 11 gripped by 21 grips both the wire member 12 fed from the nozzle portion 31 and the wire member 12 stored in the wire storage means 52. Therefore, it is possible to manufacture the α-winding coil 17 in which the wires 12a and 12b which are both wound and finished to be wound are located on the outer circumference. Even if such an α-winding coil 17 is produced, the wire 12a, 12b which is wound up or finished winding of the obtained coil 17 can be immediately cut at a predetermined length.

Further, since the distance from the core portion 11 to the cutting blade 73 is corresponding to the length of the cut of the wire member 12, it is possible to easily change the mounting position and size of the cutting blade 73 and the wire locking plate 71. The predetermined length of the cut wire 12 is.

In particular, the cutting blade 73 and the wire locking plate 71 are attached to the small bolts 72 by inserting the small bolts 72 into the notches 71e and 73b and screwing the small bolts 72 to the main body 20. By changing the position of the small bolts 72 in the longitudinal direction of the notches 71e, 73b, the attachment positions of the cutting blade 73 and the wire locking plate 71 can be easily changed.

Further, in the above-described embodiment, the α-winding coil 17 is manufactured by rotating the nozzle portion 31 at a speed higher than the rotational speed of the winding portion 21, but it is also possible to wind up the jig by means of rotation. The speed at which the winding portion 21 of the winding portion 21 is fast is rotated in the same direction as the rotation direction of the winding portion 21, and the wire holding means 53 is rotated, whereby the α winding coil 17 is manufactured, but the drawing is not shown. Show. In the α-winding coil 17 manufactured in this manner, the winding is started and the winding is completed. The wires 12a, 12b are also located on the outer circumference. In this case, in the present embodiment, the wire members 12a and 12b which are wound up or finished winding of the obtained coil by the cutter blade 73 and the wire stopper plate 71 can be immediately cut at a predetermined length.

Further, in the above-described embodiment, the nozzle moving mechanism 33 and the storage line moving mechanism 54 are configured by a combination of the X-axis, the Y-axis, and the Z-axis direction expansion/contraction actuator, but the mechanisms are not limited to this configuration. As long as the object can be moved in the three-axis direction, it can be other forms.

Further, in the above-described embodiment, the case where the wire 12 is a square-shaped corner is used as the wire 12, but the wire 12 is not limited to the angle, and the wire 12 may have a rectangular or polygonal shape, and the wire 12 may be used. It is a so-called round line that is circular in cross section. Further, the wire member 12 is not limited to the so-called heat-fusible wire 12 in which a heat-fusible film is formed around the wire body. .

Further, in the above-described embodiment, the α winding coil 17 is obtained by winding the wire 12 around the core portion 11 provided in the winding portion 21, but the α winding coil 17 may be formed by not providing the core portion 11. The wire 12 is directly wound around the winding portion 21 to be formed around the winding portion 21. In this case, in the winding portion 21, it is preferable to form the winding core of the wound wire 12 instead of the concave portion 21a in which the core portion 11 is accommodated. By winding the wire 12 around such a core, a so-called hollow core coil composed only of the wire 12 having no core portion 11 is produced. In this case, the pressing bar 22 can press the upper end of the winding core to limit the winding width of the winding core.

Further, in the above embodiment, the case where the winding step and the α winding coil forming step are simultaneously performed will be described. That is, in the above embodiment, the winding portion 21 is rotated, and the drawn wire member 12 is wound around the core portion 11, and the nozzle portion 31 is wound up at a rotation speed twice faster than the rotation speed of the winding portion 21. The winding portion 21 rotates in the same direction of rotation, and the wire 12 that is fed from the nozzle portion 31 is wound. The core 11 is wound around to form an alpha winding coil 17. However, the alpha winding coil forming step may also be performed after the winding step.

That is, it is also possible to first perform only the winding step, and thereafter perform the α-winding coil forming step. In the winding step, the winding portion 21 is rotated and the nozzle portion 31 is rotated in the same direction as the rotation direction of the winding portion 21 at the same rotation speed as the rotation speed of the winding portion 21. Thereby, the drawn wire 12 is wound around the core portion 11 to form one of the coils. In the α-winding coil forming step, the rotation of the winding portion 21 is stopped and the rotation of the mouth portion 31 is continued. Thereby, the wire 12 sent from the nozzle part 31 is wound around the core part 11 of the rotation stop, and the other coil is formed adjacent to one of the coils. Thus, at the end of the α-winding coil forming step, the α-winding coil 17 composed of the coils of both is formed.

Although the embodiment of the present invention has been described above, the above embodiment is only a part of the application example of the present invention, and the technical scope of the present invention is not limited to the specific configuration of the above embodiment.

10‧‧‧Coil manufacturing equipment

12‧‧‧Wire

13‧‧‧ pedestal

14‧‧‧ pillar

16‧‧‧Abutment

18‧‧‧Winning fixture

20‧‧‧ Body Department

21‧‧‧Winding Department

22‧‧‧ Pressing bar

23‧‧‧Motor

24a‧‧‧First pulley

24b‧‧‧second pulley

24c‧‧‧Leather

31‧‧‧ mouth

31a‧‧‧Send hole

32‧‧‧Motor

32a‧‧‧third pulley

32b‧‧‧fourth pulley

32c‧‧‧Leather

33‧‧‧Mouth movement mechanism

35‧‧‧Y-axis direction telescopic actuator

35a‧‧‧Servo motor

35d‧‧‧shell

38‧‧‧support plate

39‧‧‧Rotating components

39a‧‧‧ inserted through hole

40‧‧‧Installation components

41a~41c‧‧‧ pulley

42‧‧‧ Tension device

43‧‧‧Installation feet

44‧‧‧Box

45‧‧‧Cylinder

46‧‧‧ Tension bar

46a‧‧‧Wire Guides

46b‧‧‧Rotary axis

46c‧‧‧ bracket

47‧‧‧Control motor

48‧‧‧potentiometer

49‧‧‧ Spring

50‧‧‧moving components

51‧‧‧Tensor adjustment screw

51a‧‧‧Male screw

52‧‧‧ Storage means

53‧‧‧ Storage line clamping device

53a, 53b‧‧‧ holding film

54‧‧‧ Storage line moving mechanism

55‧‧‧X-axis direction telescopic actuator

55a‧‧‧Servo motor

55b‧‧·ball screw

55c‧‧‧ Followers

55d‧‧‧shell

56‧‧‧Y-axis direction telescopic actuator

56a‧‧‧Servo motor

56b‧‧‧Rolling screw

56c‧‧‧ Followers

56d‧‧‧shell

57‧‧‧Z-axis direction telescopic actuator

57c‧‧‧ Followers

57d‧‧‧Shell

58‧‧‧Mobile board

60‧‧‧ coil spring

71‧‧‧Wire retaining plate

73‧‧‧ cutting blade

Claims (3)

A coil manufacturing apparatus comprising: a nozzle portion (31) for feeding a wire (12); a winding jig (18) for winding a wire (12) fed from the mouth portion (31); and a holding device (53) Holding the end of the wire (12) fed from the mouth (31); the wire holding plate (71) is mounted around the winding fixture (18), and the winding fixture (18) The first and second slits (71a) through which the wire (12) can be inserted are formed in parallel in the axial direction; the cutter tooth plate (73) is overlapped with the wire holding plate (71), and the insertion can be cut off. The wire rod (12) of the first and the second slits (71a); the wire storage moving mechanism (54) moves the chucking device (53) in the three-axis direction to obtain the winding fixture (18) a wire (12) extending to the aforementioned holding device (53) is inserted through one of the first and second slits (71a); and a mouth moving mechanism (33) for moving the mouth (31) The wire (12) extending from the winding fixture (18) to the nozzle portion (31) is inserted into the other of the first and second slits (71a) in the three-axis direction. A coil manufacturing apparatus according to claim 1, further comprising: a rotating means (32) for rotating the mouth portion (31) or the holding device (53) around the winding jig (18); The means (32) is to move the mouth portion (31) or the clamping device in the same direction as the rotation direction of the winding fixture (18) at a speed faster than the rotation speed of the winding fixture (18). 53) Rotating to take up the wire (12) fed from the mouth portion (31) and the wire (12) which is gripped by the holding device (53) and pulled out from the mouth portion (31) in advance. To the aforementioned winding fixture (18). The coil manufacturing apparatus according to claim 1 or 2, wherein the wire holding plate (71) is formed to communicate with the first and second slits (71a) and the first and second slits (71a) An orthogonal transverse slit (71d).