JPH04582B2 - - Google Patents

Description

[Detailed Description of the Invention] A. Purpose of the Invention (1) Industrial Application Field The present invention relates to a core winding device for winding a coil.
In particular, the present invention relates to a coil winding device for winding a core formed by spirally winding a steel strip around a leg portion of a coil in the same wound state.

(2) Prior Art Conventionally, such a wound core winding device is already known, as disclosed in Japanese Patent Publication No. 14063/1983, for example.

(3) Problems to be Solved by the Invention However, with conventional core winding devices, it is possible to mechanically rewind the core along a large circle surrounding the legs of the coil. , when winding the re-wound core around the legs of the coil,
It is necessary to compress the wound core from the outer periphery using input.

The present invention has been made in view of the above circumstances, and provides a coil that improves work efficiency by mechanically and accurately performing the work up to winding the wound core around the legs of the coil. The purpose of the present invention is to provide a winding core winding device.

B. Structure of the Invention (1) Means for Solving the Problems In order to achieve the above object, according to the present invention, a coil mounting part for removably fixing a coil having legs on a base is provided. A wound core arrangement section for rotatably arranging the wound iron core is provided at one of the coils in the coil mounting section.
provided in a virtual circle surrounding the two legs, and on the side opposite to the coil mounting part with respect to the wound core arrangement part,
An endless feeding belt forming an arcuate guiding and feeding surface for feeding the core portion pulled out from the wound core of the wound core arrangement portion along the virtual circle is disposed,
The feeding belt includes a drive pulley disposed at one end of the guide feeding surface and driven by a motor, and a drive pulley that is arranged at one end of the guiding feeding surface, and the iron core portion is sandwiched between the guiding feeding surface and the guiding feeding surface, and is directed to the wound core arrangement portion. The belt is wound around a drive roller that can move toward and away from the guide and is detachable, a belt moving pulley disposed at the other end of the guide and feed surface, and another guide pulley, and is wound around the guide and feed surface. A plurality of guide rollers are arranged in the remaining part of the virtual circle, and the belt moving pulley is supported by the base so as to be movable in the forward and backward direction with respect to the coil mounting part, and there is a gap between the base and the belt moving pulley. An actuator for forcibly moving the belt moving pulley in the forward and backward direction is provided.

(2) Function The outermost peripheral end of the core placed in the core placement section is sandwiched between the drive roller and the guiding and feeding surface of the feed belt, and is pulled out by each guide roller so as to form a circular shape along an imaginary circle. and is temporarily fixed to the outer peripheral layer of the wound core. In this state, by operating the drive roller and drive pulley,
The wound core is unwound into a large circle surrounding the legs of the coil. Therefore, by removing the drive roller and moving the belt moving pulley toward the coil mounting section, the wound core is compressed on the guide and feeding surface and is wound around the legs of the coil.

(3) Embodiment Hereinafter, an embodiment of the present invention will be explained with reference to the drawings. First, in FIGS. 1 and 2, the coil 1 has three-phase windings 2, 3, and 4 having an equilateral triangular cross section. The windings 2, 3, and 4 are primary coils 2a, 3a, 4a and secondary coils 2b, 3b, 4b, which are formed by winding strands of wire in a rectangular shape. It is composed by polymerizing.
In this coil 1, leg portions 5, 6, 7 are provided at the abutting portions of the phase windings 2, 3, 4, and a winding device according to the present invention is attached to these leg portions 5, 6, 7. 8
The wound core 9 is wound by.

The winding device 8 includes a base 10, on which a coil mounting part 11 for removably fixing the coil 1 is provided, and a wound core 9 is rotatably mounted on the base 10. A wound core arrangement section 12 for arrangement is provided.

In FIG. 3, the coil mounting section 11 is connected to the base 10.
A notch 15 is provided at the end of the base 10 and is provided by cutting out the end of the base 10 so as to have a pair of contact surfaces 13 and 14 corresponding to the two sides of the coil 1.
A mounting plate 16 for placing the coil 1, which is fixed to the base 10 so as to be located below the notch 15, and a mounting plate 16 for placing the coil 1 on the mounting plate 16. Press one side and press the remaining two sides on contact surface 1
3 and 14.

When the coil 1 is placed on the mounting plate 16, the wound core 9 is placed on each leg 5, 6, 7.
The distance between the base 10 and the base 10 is determined so that the part to be wrapped is located above the top surface of the base 10.
Fixed to 0. Further, the pressing plate 17 has leg portions 5 to 7.
With the wound cores 9 wound around the wound cores 9,
It is formed in a rectangular shape so that it can come into contact with the side surface of the coil 1 while avoiding. Moreover, one end of the pressing plate 17 is rotatably supported on the base 10 by a hinge pin 18. Also, corresponding to the other end of the pressing plate 17,
A pressing means 19 for pressing the pressing plate 17 toward the coil 1 is provided.

In such a coil mounting part 11, the leg part 5, on which the wound core 9 is to be wound, is connected to both contact surfaces 13, 1.
4, and place it at the position corresponding to the intersection of coil 1.
can be fixed in a removable manner.

The wound core arrangement section 12 is disposed on a virtual straight line 20 that passes through the leg section 5 and is perpendicular to the straight line connecting the remaining leg sections 6 and 7 in the coil 1 mounted on the coil mounting section 11 . Moreover, the winding core arrangement part 12
is located within a relatively large virtual circle 21 that is centered on the virtual straight line 20 and surrounds the leg portion 5 of the coil 1 in the coil mounting portion 11. A shaft 23 is removably fixed to the center of the upper surface of a turntable 22 which is rotatably supported by the turntable 22. When winding the wound core 9 around each of the legs 5 to 7 of the coil 1, the wound core 9, which is formed by winding a steel strip in a spiral shape, is wound around the shaft 2.
3 and placed on the turntable 22.

An endless feeding belt 24 is mounted on the base 10 on the side opposite to the coil mounting part 11 with respect to the wound core arrangement part 12.
is placed. This feed belt 24 is a pair of toothed belts arranged at the top and bottom, and has a driving pulley 25 and a pair of toothed belts.
The belt is wound around two guide pulleys 26 and 27, a belt moving pulley 28, and a drive roller 29. Moreover, along the running direction 30 of the feed belt 24, the outer surface of the feed belt 24 from the belt moving pulley 28 to the drive pulley 25 forms a guide feed surface 31, and a drive roller 29 is placed in the middle of this guide feed surface 31.
is brought into contact.

In FIG. 4, the drive pulley 25 has a pair of upper and lower meshing portions 3 that mesh with a pair of upper and lower feed belts 24.
2, whose rotating shaft 33 is rotatably supported by a support cylinder 34 fixed to the lower surface of the base 10 via bearings 35, 36. A bevel gear 37 is fixed to the lower end of the rotating shaft 33 that protrudes downward from the support tube 34 .

On the other hand, a pair of support members 39 and 40 are fixed on a support stand 38 fixedly arranged below the base 10, and a horizontal drive shaft 41 is attached to these support members 39 and 40 with bearings 42 and 40, respectively. It is rotatably supported via 43. A bevel gear 44 is fixed in the middle of the drive shaft 41, and the bevel gear 44 meshes with the bevel gear 37.

The guide pulley 26 is connected to a pair of upper and lower feed belts 2.
The rotating shaft 45 is rotatably supported by the base 10 via bearings 46 and 47. Another guide pulley 27
It is also formed in a cylindrical shape and is rotatably supported by the base 10.

The rotating shaft 45 of the guide pulley 26 passes through the base 10 and projects downward, and a support cylinder 48 is fixed to the lower surface of the base 10 so as to cover the protruding end of the rotating shaft 45. . A rotating shaft 49 having the same axis as the rotating shaft 45 is attached to the bearing 5 in the support cylinder 48.
0 and 51, and a bevel gear 52 is fixed to the lower end of this rotating shaft 49. Also, in the middle of the drive shaft 41, the bevel gear 5
A bevel gear 53 that meshes with 2 is fixed.

An output shaft 56 of a motor 55 is connected to the end of the drive shaft 41 via a shaft coupling 54. By operating the motor 55, the drive pulley 25 is connected to the end of the drive shaft 41 via the drive shaft 41 and bevel gears 44, 37. is driven to rotate. Furthermore, due to the rotational operation of the drive shaft 41,
A rotating shaft 49 is rotationally driven via bevel gears 53 and 52, and a pulley 57 is fixed to this rotating shaft 49, and a drive roller 29 is attached to this pulley 57.
A toothed belt 58 is wound around which power is to be transmitted.

The drive roller 29 is at an angle α with the virtual straight line 20.
The turntable 22 is arranged so as to be movable along another imaginary straight line 59 extending in the radial direction of the turntable 22. That is, as shown in FIG. 5, a pair of support members 60 and 61 are fixed to the lower surface of the base 10 at positions spaced apart from each other along the virtual straight line 59.
A pair of upper and lower guide rods 62 and 63 are installed between the support members 60 and 61. A pair of supports 64 and 65 are supported movably in the direction along the virtual straight line 59 by these guide rods 62 and 63. Also, one support member 60 has one support member 6
An air cylinder 66 is disposed to move the support member 4 along the guide rods 62 and 63, and the other support member 61
An air cylinder 67 is disposed in order to move the other support 65 along the guide rods 62 and 63.

One support body 64 has a rotating shaft 6 extending vertically.
8 is rotatably supported via bearings 69 and 70, and the lower end of the rotating shaft 68 projects downward from the support 64. Furthermore, a toothed pulley 71 is fixed to the lower end of the rotating shaft 68, and a toothed belt 58 for transmitting the driving force from the motor 55 is wound around the toothed pulley 71.

A long hole 72 extending along the virtual straight line 59 is bored in the base 10 , and the upper end of the rotating shaft 68 is inserted into the long hole 72 . A fitting hole 73 that opens upward is bored at the upper end of the rotating shaft 68, and the fitting hole 73 is formed so that its diameter becomes smaller toward the bottom thereof.

A rotating shaft 74 is integrally provided on the drive roller 29 , and the outer surface of the rotating shaft 74 is tapered to fit into the fitting hole 73 . Therefore, by fitting the rotating shaft 74 into the fitting hole 73 of the rotating shaft 64, the drive roller 29 is integrated with the rotating shaft 64. Further, an insertion hole 75 is formed in the drive roller 29 and the rotating shaft 74 over the entire length thereof, and a female thread 76 is formed at the lower end of the insertion hole 75. To remove the drive roller 29 from the rotating shaft 64, a rod-shaped removal tool 77 having a male thread at its end that is screwed into the female thread 76 is prepared. Insert this removal tool 77 into the insertion hole 75,
Rotate it to engage the female thread 76 and screw it in. Then, the end of the removal tool 77 comes into contact with the bottom of the fitting hole 73 and the screw movement is prevented, so the rotating shaft 74 of the drive roller 29 is floated, and the rotating shaft 74, that is, the driving shaft Roller 29 can be removed.

A pulley 78 is disposed on the opposite side of the drive roller 29 with respect to the feed belt 24 so as to be movable along the virtual straight line 59. That is, a long hole 79 extending along a virtual straight line 59 is bored in the base 10, and a rotating shaft 80 provided integrally with the pulley 78 is inserted through the long hole 79.
It is rotatably supported by a support body 65.

In FIGS. 6 and 7, the belt moving pulley 28 is arranged so that it can approach and move away from the coil mounting portion 11 along a direction parallel to the imaginary straight line 20. That is, the base 10 is provided with a long hole 81 extending in a direction parallel to the virtual straight line 20, and the base 10 is opened at positions corresponding to both ends of the long hole 81.
Support members 82 and 83 are fixed to the lower surface of 0.
On the other hand, the rotating shaft 84 of the belt moving pulley 28 passes through the elongated hole 81 and is supported by the support body 8 by bearings 85 and 86.
It is rotatably supported at 7. A pair of upper and lower horizontal guide rods 88 and 89 pass through this support body 87, and these guide rods 88 and 89 are installed across both support members 82 and 83. Furthermore, a support body 87 is attached to one of the support members 82 with a guide rod 8.
An air cylinder 90 is provided as an actuator for movement along lines 8 and 89. Therefore, by expanding and contracting the air cylinder 90, the belt moving pulley 28 moves along the elongated hole 81.

When winding the wound core 9, the belt moving pulley 28 is located at the farthest position from the coil mounting portion 11. Further, the drive roller 29 is connected to the turntable 2
The pulley 78 is located at the farthest position from the drive roller 29, and the pulley 78 is located at a position where the feed belt 24 is sandwiched between the pulley 78 and the drive roller 29. In this state, the guide feeding surface 31 of the feeding belt 24 is curved in an arc shape along a part of the virtual circle 21.

Further, along the remaining part of the virtual circle 21 excluding the part corresponding to the guide and feed surface 31, a plurality of guide rollers 91, 9, for example, three guide rollers are mounted on the base 10.
2 and 93 are arranged rotatably, and the coil mounting part 1
A guide roller 94 is also rotatably disposed on the first mounting plate 16.

Next, to explain the operation of this embodiment, when winding the wound core 9 around the coil 1, the leg part 5, for example, around which the wound core 9 is to be wound, is connected to the wound core arrangement part 1.
2 side, and the coil 1 is fixedly arranged on the coil mounting part 11. Further, on the turntable 22, a wound iron core 9 formed by winding a steel strip in a spiral shape is provided.
Place. At this time, the guide feeding surface 31 of the feeding belt 24 is curved along a part of the virtual circle 21.

Next, the outermost peripheral end 9a of the wound core 9 on the turntable 22 is passed between the drive roller 29 and the guide feeding surface 31, and further drawn out so as to form a circular shape along the imaginary circle 21. With the outermost peripheral end 9a going around the virtual circle 21, the outermost peripheral end 9
A is temporarily fixed to the outer peripheral layer of the wound core 9 with an adhesive tape 95 or the like.

When the temporary fixing is completed, the motor 55 starts operating. As a result, the drive roller 29 and the drive pulley 25 are rotationally driven. Therefore, the feed belt 24 starts running, and the outer peripheral layer of the wound core 9 in the wound core arrangement portion 11
It is driven by being brought into contact with the guide feeding surface 31 of No. 4 over a wide range. As a result, the wound core 9 is pulled out between the drive roller 29 and the guide and feed surface 31 while rotating smoothly with a large torque, and is finally re-wound into a large circle corresponding to the virtual circle 21.

During the process of rewinding the wound core 9,
The layer thickness of the iron core portion along the virtual circle 21 gradually increases, and the drive roller 29 is moved to correspond to the increase in layer thickness.

In this way, the wound core 9 becomes a large circle that surrounds the leg portion 5, and then, as shown in FIG. At the same time, the temporary fixation by the adhesive tape 95 is released. The clip member 96 includes a clamping part 97 that pinches the outermost peripheral end 9a, and a holding part 98 that holds the upper edge of the outermost peripheral end 9a and the upper edge of the outer peripheral layer in a relatively slidable manner. It can be slidably held relative to the outer peripheral layer of the wound core 9. Next, remove the shaft 23 of the turntable 22, and then remove the drive roller 29.
After removing it from the rotating shaft 64, the belt moving pulley 28 is moved along the elongated hole 81 toward the coil mounting portion 11. As a result, the guide and feed surface 31 of the feed belt 24 rotates toward the coil mounting portion 11 using the drive pulley 25 as a fulcrum. As a result, the wound core 9, which had a large circular shape, is compressed to reduce its diameter, and is finally wound around the leg portion 5.

Regarding the remaining legs 6 and 7 of the coil 1, the same procedure as that for the leg 5 described above is repeated to wind the wound core 9, respectively.

C. Effects of the Invention As described above, according to the present invention, a coil mounting portion for removably fixing a coil having legs is provided on a base, and a wound iron core can be freely rotated. The winding core placement section for placement is
An iron core portion that is provided in a virtual circle surrounding one leg of the coil in the coil mounting portion and is pulled out from the wound core of the wound core placement portion is provided on the opposite side of the coil mounting portion with respect to the wound core placement portion. An endless feeding belt forming an arc-shaped guiding feeding surface for feeding along the virtual circle is disposed, and the feeding belt includes a drive pulley disposed at one end of the guiding feeding surface and driven by a motor. a drive roller which is capable of sandwiching the core portion between the guide and feed surface in the middle of the guide and feed surface, and which is capable of moving toward and away from the wound core arrangement portion, and which is detachable; and the other end of the guide and feed surface. A plurality of guide rollers are arranged in the remaining part of the virtual circle excluding the guide and feeding surface, and the belt moving pulley is wound around a belt moving pulley disposed on the coil and another guide pulley. It is supported by the base so as to be movable in the forward and backward directions with respect to the mounting part, and an actuator for forcibly moving the belt moving pulley in the forward and backward directions is disposed between the base and the belt moving pulley. By cooperation of the feed belt and the drive roller, the wound core placed in the core placement portion can be automatically re-wound so as to surround the coil leg portion and form a large-diameter circular shape along the virtual circle. Moreover, after the rewinding is completed, simply by removing the drive roller and gradually moving the belt moving pulley toward the coil installation part, the large diameter core of the rewinded core is compressed and tightened around the coil leg. As a result of the above, each work of rewinding the core and tightening the winding to the coil legs can be performed mechanically and automatically.
This can greatly contribute to improving the efficiency of winding the wound core onto the coil.

In particular, when winding the re-wound large-diameter core around the coil leg, the belt moving pulley, which gradually moves toward the coil mounting section, cooperates with the guiding and feeding surface of the feed belt, which moves to follow this. Accordingly, the large-diameter wound core can be forcefully and effortlessly compressed in accordance with the amount of movement of the pulley, so that the wound core can always be wound and tightened accurately. Moreover, such a mechanism for winding and tightening can be obtained by simply attaching the belt moving pulley to a base so that it can move forward and backward with respect to the coil mounting part side, and adding an actuator that drives the pulley forward and backward. Cost increases associated with special installation can be minimized.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is an overall perspective view, FIG. 2 is an overall plan view, FIG. 3 is a view taken in the direction of the arrows in FIG. 2, and FIG. - Line sectional view, Figure 5 is a - line sectional view of Figure 2, Figure 6
The figures are a cross-sectional view taken along the line -- in FIG. 2, FIG. 7 is a cross-sectional view taken along the line -- in FIG. 6, and FIG. 8 is a perspective view of the clip member. 1... Coil, 5, 6, 7... Leg, 8... Winding device, 9... Winding core, 10... Base, 11...
Coil mounting part, 12... Winding core arrangement part, 21...
Virtual circle, 24...Feeding belt, 25...Driving pulley, 26, 27...Guide pulley, 28...Belt moving pulley, 29...Driving roller, 31...Guiding and feeding surface, 55...Motor, 90... ...Air cylinder as actuator, 91-94...Guide roller.

Claims (1)

[Claims] 1 Coil 1 having legs 5 to 7 on base 10
A coil mounting part 11 for removably fixing the coil 1 is provided, and a wound core arranging part 12 for rotatably arranging the wound core 9 is attached to one of the coils 1 in the coil mounting part 11. Leg 5
The core portion pulled out from the wound core 9 of the wound core arrangement section 12 is provided within a virtual circle 21 surrounding the wound core arrangement section 12, and on the opposite side of the coil mounting section 11 with respect to the wound core arrangement section 12. An endless feeding belt 24 forming an arcuate guide feeding surface 31 for feeding along the
The drive pulley 25 is disposed at one end of the guide and feed surface 31 and is driven by a motor 55, and the iron core part is connected to the guide and feed surface 3 in the middle of the guide and feed surface 31.
1 and the wound core arrangement portion 12.
The belt is wound around a drive roller 29 that can move toward and away from the belt and is detachable, a belt moving pulley 28 disposed at the other end of the guide feeding surface 31, and other guide pulleys 26 and 27. A plurality of guide rollers 91 to 94 are arranged in the remaining portion of the virtual circle 21 excluding the guide and feeding surface 31, and the belt moving pulley 28 is movably moved in the forward and backward direction with respect to the coil mounting section 11. The winding of the coil is supported by a base 10, and an actuator 90 is disposed between the base 10 and the belt moving pulley 28 for forcibly moving the belt moving pulley 28 in the advance/retreat direction. Iron core winding device.