JPH03220706A - Coil winder - Google Patents

Abstract

PURPOSE:To accurately and effectively wind a wire regularly by providing a wire guide unit, forming a guide groove in which a magnetic part of the end of the wire is inserted on the lower surface of the unit, and providing a magnet for attraction the magnetic part of the wire into the groove. CONSTITUTION:A wire guide unit for so guiding a wire as to insert it to a core hole K formed in a circular arc state having a narrowest width a its center and wider width gradually increasing from its center toward vertical directions is provided at the part to be wound with the wire of a head core C, is provided. A guide groove 305 in which the magnetic part of the end of the wire is inserted is formed on the lower surface of the member 304, and a magnet 306 for sucking the magnetic part of the wire into the groove is provided. Thus, the winding is not superposed, not separated, but the wire can be accurately and effectively wound regularly. The yield of winding is improved.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a coil winding machine for a magnetic head.

(Prior Art) For example, a magnetic head for video signals includes a very small coil. This coil is formed by wrapping a very thin wire with a diameter of about 0.03 mm around the head core, but the gap in the core is also 0.4 mm at most.
The degree of winding is extremely small, and winding the wire through each gap is extremely time-consuming and troublesome.

Therefore, it is desirable that these winding operations be performed automatically by a machine, and various winding machines have been developed for this purpose (Japanese Patent Application Laid-open No. 1-241105, Utility Model Application No. 63-19).
3822, etc.).

(Problem to be solved by the invention) However, with conventional winding machines, if the position of the wire deviates even slightly with respect to the core hole of the helad core part, the windings overlap or separate, so it is difficult to ensure the reliability of aligned winding. It was not always satisfactory in this respect.

(Means for Solving the Problems) In order to solve these problems, the present invention provides a coil winding machine for a magnetic head, in which at least the portion of the head core portion where the wire is wound is narrowest at the center, and A wire guide device is provided to guide the wire through the core hole, which is formed in an arc shape that gradually widens as it moves away from the top and bottom, and a guide groove into which the magnetic wire at the tip of the wire is inserted into the lower surface of the guide member. A magnet is provided to attract the magnetic line portion of the wire into the groove.

(Function) For the magnetic head coil, insert the wire into the coil hole from the front of the head core along the guide groove of the guide member, turn it to the side of the core, and then insert the wire from the front along the guide groove of the guide member. It is formed by inserting it into a hole and winding it, and repeating this process the required number of turns.

In this case, when the magnetic wire at the tip comes out from the guide groove to the opposite side, the wire sag downward and is wound around the head core from below, and when tension is applied,
The newly wound wire is brought to the center of the circular arc by the coil hole, pushing up the previous winding. Therefore, the wires can be wound in alignment accurately and reliably without overlapping or separating the windings.

(Example) Fig. 1 is an external perspective view of a coil winding machine M for a double azimuth type video head, where A is a jig for removably clamping the video head on the top, and B is a jig A is placed on the top. C is a transport device that arranges multiple jigs and moves them to the table B1, ■ is a jig A removed from the table B1
Dl and D2 are wire guide devices that guide the wire to be inserted into the core hole of the video head, El and E2 are first wire gripping devices that grip the tip of the wire, move it, and apply tension, and Fl and F2 are a second wire gripping device that similarly grips the tip of the wire and moves it while being reversed, and G is an initial setting device that sets the wire at the start of coil winding. The loading/unloading devices C and (1), the wire guide devices D1 and D2, the first and second wire gripping devices E1 and E2, and Fl and F2 have the same configuration, respectively, and are placed at predetermined positions before and after the support device B is sandwiched between them. will be established. Although not shown, a guide nozzle device H is attached to the main body of the winding mm to guide the initial insertion of the wire into the video head.

Jig A has a base 11 and a column 12 as shown in Figs.
It consists of The base 11 is made of a U-shaped plate member in plan view, and has a slide groove 13 formed on its lower surface to engage with a guide rail 113 of the carry-in/unload device C5. The column 12 is erected on the base 11, and the support device B is mounted on the back.
Holes 14, 15 for positioning with respect to 1 and pins 16 for fixing are provided.

A support member 17 having a recess 20 into which a video head is inserted is provided at the upper part of the column 12, and a holding member 18 that fixes the video head in the recess 20 by the biasing force of a coil spring 23 is mounted on the front surface of the support member 17. be supported. The support member 17 is in this case movably supported on the surface of the column 127i via the pins 19.25 and 26, and is supported by the coil spring 19.
It is pressed onto the column 12 surface by A.

Anchor bins 27 to 30 for fixing the front and rear ends of the wires are arranged on the front surface of the column 12. Each of these anchor bins 27 to 30 has a head at its tip, and a coil spring is interposed between the spring receiver at the rear end of the shaft inserted through the guide hole of the column 12 and the back surface of the column 12. Then, when the shaft is pushed in the direction of compression of the coil spring by an external drive means (not shown), the head moves toward the column 12.
A gap is formed apart from the surface of the column 12, and when a wire is passed through this gap and the pressing force of the external driving means is released, the head clamps and fixes the wire between itself and the surface of the column 12 by the force of the coil spring.

The support device B includes movable tables 84c and 85d as shown in FIG.
A plurality of rotary tables 85a are arranged at predetermined intervals on the surface of the movable table 85d, and mounting tables B1 for jigs A are fixed one by one on the rotary table 85a. The moving table 84c is connected to the guide rail 86 of the base 85b.
The movable table 85d is supported movably in the Y-axis direction via a sliding bearing that engages with the guide rail 93 of the table 84c, and the movable table 85d is movable in the Z-axis direction via a sliding bearing that engages with the guide rail 93 of the table 84c.

The base 85b has feed screws 88 and 97 parallel to the guide rails 86 and 93, respectively, the movable table 84c has a nut 91=6 screwed to the feed screw 88, and the movable table 85d has a nut 91 screwed to the feed screw 97. Nut 9 screwed together
When each servo motor 92.9 is attached and each servo motor 92.9 is driven, the feed screw 88.97 rotates and the nut 9
1.99 to move the tables 84c and 85d (see FIG. 6). Reference numeral 95 denotes a cylinder that prevents the moving platform 85d from descending due to its own weight.

Although not shown inside the movable table 85d, each rotary table 8
A bearing that rotatably supports the shaft portion of the table 85a, a servo motor that rotates these tables 85d synchronously, and a pneumatic cylinder that drives a link 63 of the jig table B1, which will be described later, via a rod are provided, and the servo motor rotates. table 8
5a is rotated between a position where the stand B1 faces the carrying-in device C side and a position where it faces the carrying-out device (2) side.

The jig stand B1 consists of a base 51 and a column 12, as shown in FIGS. 53, 54 and a through hole 55 are provided.

Holders 56 and 57 for holding the pin 16 of jig A are provided on the back of the column 52, each of the holders 56 and 57 is pivotally supported by the column 52 at one end, and these holders 56 and 57 are closed at the middle part. They are connected to each other by a coil spring 58 that biases them into position.

A roller 59.6o is attached to the other end of the holder 56.57, and a slider 61 is provided at the bottom of the column 52 with its tip facing between the rollers 59 and 60. Slider 61
is supported to freely slide vertically via a bearing member 62, and as it slides, the holder 56.5 is moved via rollers 59.60.
Open and close 7.

Reference numeral 63 denotes a link that is supported in a freely swinging manner within the notch of the base 51. The link 63 is connected to the slider 61 at one end and to a rod in the moving table 85d at the other end, and is swung via the rod by a pneumatic cylinder. , slide the slider 61.

A wire holding device B2 for holding down the wire wound around the video head a of the jig A for each turn is assembled on the jig stand B1. Holder device B2 is video head a
It has two shafts 65, 66 arranged so as to be located at the front and rear of the shaft, and a presser member 67, 68 is attached to the tip of the shaft 65, 66. The shafts 65, 66 are connected to the arms of the support shafts 69, 70, and when the support shafts 69, 70 rotate, they swing together with the arms to move the presser members 67, 68 toward and away from the video head a.

The support shaft 69.70 is supported by a base member 71 on the side surface of the column 52 (movably attached to the side surface of the column 52 via a shaft member 82.83 by a drive means (not shown)), and is supported via a crank plate 72.73. The crank plate 72.73 rotates the six support shafts 70 by the vertical movement of the slider 74.75, and is connected to the base member 71 via a coil spring 81.82. .

The sliders 74 and 75 are sliding bearings 76 on the side of the base member 71.
(The position where the pressing members 67, 68 are supported by the coil springs 77, 78 at the initial position and separated from the video head a)
is energized by

When the driving means (not shown) raises the slider 74.75, the holding member 67.68 comes into pressure contact with the video head a due to the rotation of the support shaft 69.70, and when the driving means releases the slider 74.75. , coil spring 77.78
lowers the slider 74.75 and lowers the support shaft 69.70.
As a result of the reverse rotation, the holding members 67 and 68 are separated from the video head a.

Note that the axis 65 of the holding member 67 is
The chisel is slidably attached to the six arms of the support shafts, and a driving means (not shown) for extending and retracting the shafts 65 is provided.

As shown in FIG. 12, the loading device C includes a table 101 that moves in the X-axis direction, a table 102 that moves in the Y-axis direction, and a moving table 10.
The moving table 101 is connected to the guide rail 104 on the main body side of the winding machine M via slide bearings at both ends, and the moving table 102 is connected to the guide rail 104 on the winding machine M main body side via slide bearings at both ends. The movable table 103 is attached to the upper guide rail 105, and further connected to the tip of a shaft member 109 that can freely slide on the table 102. 106 to 108 are moving platforms 10
1 to 103 respectively indicate a pneumatic cylinder that drives them in a predetermined direction.

The moving table 103 is provided with a feeding member 110 in which a large number of grooves 111 are formed at equal intervals. A substrate 112 is fixed to the moving table 101 below and parallel to the feeding member 110, and a guide rail 113 for guiding the feeding of the jig A is laid on the substrate 112.

Then, the feeding member 110 repeats forward movement, leftward movement, backward movement, and right movement by moving the tables 102 and 103 alternately, and moves the jigs A on the board 112 one by one with the grooves 111 to the guide rail 113. When each jig A faces the stand B1 of the support device B, the stand 101
Moves the jig A onto the support B1 by moving forward, and the mounting base 10
1 returns to the initial position.

As shown in FIG. 13, the wire guide device D1 is composed of a guide member 304 that guides the insertion of the wire and a lifting platform 301 for the guide member 304. The lifting table 301 is arranged along the support device B of the jig A, and is supported at both ends by sliding bearings 303 on the winding machine M main body side via a shaft 302. Although not shown, a pneumatic cylinder for driving the lifting table 301 is provided between the shaft 302 and the winding 1 wire iM main body side.

The same number of guide members 304 as the bases B1 of the support device B are provided, and the elevating bases 301 correspond to the respective bases B1.
is fixed to the bottom surface of the A guide groove 305 having a V-shaped cross section for inserting the wire is formed on the lower surface of the guide member 304, and a magnet 306 is embedded in the bottom of the groove 305 to attract a magnetic wire portion (guiding portion) of the wire, which will be described later.

Then, the wire is fixed in the guide WI 305 of the guide member 304 with the magnetic wire part fixed, for example, in the video head a.
When the magnetic wire section is pulled out from the opposite side to be inserted into the core hole, it will sag slightly downward due to its own weight and pass through the core hole below the center.

As shown in FIG. 14, the first wire gripping device E1 includes a plurality of gripping portions 402 disposed in front of a movable table 401 so as to respectively correspond to the base B1 of the support device B, and the movable table 401 has a It is attached to the guide rail on the machine M main body side via a sliding bearing, and is moved in the X-axis direction by the drive of a pneumatic cylinder (not shown).

The gripping portion 402 is connected to the substrate 403 and the gripping portions 404 and 405.
The board 403 is the sliding bearing 4 of the moving table 401.
A gripping member 4 is supported via a shaft 426 passing through the shaft 426, and is located between a spring receiver at the rear end of the shaft 426 and a sliding bearing 428.
A coil spring 429 is interposed to apply a predetermined tension to the wire when the wire is grabbed and pulled at 04.405.

Grip members 404, 405 are mounted on shaft 406, 406 on substrate 403.
A coil spring 408 is provided which is rotatably attached via a coil spring 407 and biases the distal ends thereof in the closing direction. The rear ends of the gripping members 404, 405 are linked 42 to each other.
1,422, and a roller 424 that engages with a groove 425 on the substrate 403 side is attached to the connecting pin 423 of the links 421 and 422.

The movable table 401 is provided with a slider 410 that can freely slide in the y-axis direction via a bearing 412, and an arm 411 is provided protruding from the slider 410 for each grip portion 402. A pneumatic cylinder 413 drives the slider 410, and when the slider 410 moves to the right in the figure due to the driving force of the cylinder 413, it pushes the rear end of the gripping member 404 via the arm 415. It rotates in a direction against the coil spring 408, moves the roller 424 along the groove 425, and opens the grip member 405 at the same time. 430 and 431 are slider 4
A connecting member 414 between 10 and the piston rod of the pneumatic cylinder 413 is a rotation preventing member having a shaft hole that is spline-fitted to the outer periphery of the slider 410, for example.

As shown in FIGS. 15 to 17, the second wire gripping device F1 includes a main body 501 that is movable in the Z-axis direction, and a plurality of wire gripping devices arranged on the bottom surface of the main body 501 so as to correspond to the jig stands B1 of the supporting device B. It consists of a grip part 502.

Grip members 503 and 504 are mounted on shafts 506 and 506 on substrate 505.
Coil springs 5, 0 are rotatably attached via 507 and bias the distal ends of these 14 in the closing direction.
8 is provided. Behind the grip members 503 and 504, sliders 509 and 510 that can freely slide in the y-axis direction by bearings 529 of the main body 501 are arranged.
arm 511.51 for each grip part 502.
2 is provided protrudingly.

The arm 511 rotates the grip member 504 in a direction against the coil spring 508 when the slider 509 moves to the right by driving a pneumatic cylinder (not shown) on the main body 501, and the arm 512 rotates the grip member 504 in a direction against the coil spring 508 when the slider 509 moves to the right. When moving, the gripping member 503 is also rotated.

The gripping members 503 and 504 are provided with eccentric rollers 529 to adjust the gripping position of the wire, and are configured to be able to swing around a common rotation axis (not shown) as the rollers rotate.

The substrate 505 is rotatably supported via a shaft 516 that vertically passes through the main body 501. A pinion 518 is provided at the upper end of the shaft 516, and a rack 517 that meshes with the pinion 518 is provided on the upper surface of the main body 501. The rack 517 is connected to a piston rod of a pneumatic cylinder 519 and reciprocates as the piston rod expands and contracts, rotating the substrate 505 forward and backward by 180 degrees via a pinion 518.

In addition, in order to restrict the rotation of the grip portion 502, the link 52
2 and a cam plate 523 are provided. The link 522 is the main body 5
The cam plate 523 is rotatably supported on the upper surface of the shaft 516 via a shaft 524, and the cam plate 523 is fixed to the lower part of the pinion 518 of the shaft 516. The link 522 includes a coil spring (not shown) that urges it toward the cam plate 523, and a roller 525 that can engage with the notch 711527 of the cam plate 523 is attached to one end.

Then, when the grip portion 502 is reversed, the link 523 is driven by an external pneumatic cylinder to rotate in a direction against the coil spring via the slider 526, and removes the roller 525 from the notch groove 527 of the cam plate 523. When the rotation of the gripping portion 502 stops, the pneumatic cylinder becomes free, so it is pushed back by the coil spring,
The roller 525 is engaged with the cutout groove 527.

By the way, the main body 501 is mounted on a moving table 53 as shown in FIG.
0 to the first wire gripping device E1. The moving table 530 is supported in the X-axis direction via a shaft 531 passing through a sliding bearing 532 of the main body of the apparatus E1, and the main body 501 is supported in two axial directions via a sliding bearing on a guide rail of the moving table 530. The main body 501 and the moving table 530 are each driven in a predetermined movement direction by a pneumatic cylinder (not shown).

As shown in FIG. 18, the initial setting device G consists of a movable base 601, and cutters 604, 605 and gripping portions 606 arranged on the upper surface of the movable base 601 for each base B1 of the support device B. 601 is attached to a guide rail 602 on the main body side of the winding machine M via a sliding bearing 603 so as to be movable in the y-axis direction. The movement of the base 601 is performed by a pneumatic cylinder (not shown) provided on the back of the main body.

The cutters 604 and 605 are the columns 6 set up on the base 601.
Blade members 608.60917 are disposed before and after the blade members 608 and 60917, respectively connected to each other so as to be openable and closable with pins 610, and a link 61 connects the rear ends of the blade members 608 and 609.
1.612. The connecting pins 613 of the links 611 and 612 are each supported on both sides of an arm member 614, and the arm member 614 is fixed to the column 607 on a rotatable shaft 615. Further, the grip portion 606 is attached to a column 621 that stands on the base 601 behind the cutter 604.6°5, and includes a grip member 622.623 biased in the closing direction by a coil spring, and a grip member 622.6.
23 and links 625 and 626 connecting the rear ends of the two. A roller 628 is attached to the connecting pin 627 of the links 625 and 626, and an arm member 629 that contacts the roller 628 is fixed on a shaft 625 extending from the cutter 604, 605 side.

When the shaft 615 is rotated by a pneumatic cylinder (not shown), the gripping parts 606 and 604.605 are connected to the links 625.625 as the arm members 629 and 614 swing.
and 611 and 612, and when these actuate to close, gripping portion 18 606 grips the wire and at the same time cutter 604.60
Cut the wire W at step 5.

As shown in FIG. 18, the guide nozzle device H includes a plurality of guide nozzles 704 arranged on a lifting table 701 so as to correspond to each of the cutters 604 and 605 of the initial setting device G. At the front of 703, it is attached to a nozzle plate 706 fixed above the support plate 705.

Between the nozzle plate 706 and the stand 70B, there is a U-shaped slide plate 707 that can freely slide on the support plate 705, and a fixed plate located within the U-shape of the slide plate 707 and connected to the front surface of the stand 703. A member 708 is interposed, and the support plate 705 is provided with a blade member 709 that is rotatably supported. Fixed member 7
08 is formed with a stepped portion 711 facing one side of the upright side of the slide plate 707, and an etch corresponding to the etch of the blade member 709.

The guide plate 707 is connected to the slider 712 via an elastic spring pin 715, and when the slider 712 is pulled by a pneumatic cylinder (not shown), it slides together with the slider 712 and holds the fixing member 708 by one side. The wire W is elastically held between the stepped portion 711 and the stepped portion 711 . Further, the blade member 709 is linked to the arm member 717 of the slider 713, and when the slider 713 is pushed by a pneumatic cylinder (not shown), it rotates in the closing direction and connects the wire W with the edge of the fixing member 708. disconnect. Note that the table 703 is fixed on the lifting table 701 and supports the sliders 712 and 713 so as to be freely slidable in the y-axis direction.

In addition, an elevating table 701 is provided on the winding machine M main body side.
! Supported through a fence.

Note that the unloading device ■ is a loading device C and a wire guide device D.
2 is a wire guide device D1 and a first wire gripping device E
1 has the same configuration as the first wire gripping device E2, and the second wire gripping device F1 has the same configuration as the second wire gripping device F2, so a redundant explanation will be omitted.

By the way, there is only one double azimuth type video head a.
As shown in Figure 20, when the head base part is attached, it is glued to the top of the base part through a predetermined gap l. 0 Consists of two head core parts C, each head core part C
Coils g and h are formed on both sides of the core 6, respectively, as described later. In this case, each core 6 has a rectangular original hole because the width of at least the wire-wound part of the head core part C is formed in an arc shape that is narrowest at the center and gradually widens as it moves away from the center in the vertical direction. It is made by inserting, for example, a rod with an elliptical cross section into the hole, filling the gap between the outer periphery of the rod and the original hole with a glass material, and then pulling out the rod. In addition, the coils g and h of each core part C
Before and after winding, the printed wiring board e around the hole n in the base part
, f, respectively.

Further, as shown in FIG. 21, the wire W used to form the coils g and h of the video head a consists of a winding portion W2 to the head core portion C and a magnetic guide portion Wl. For example, a piano wire is wound with a predetermined length W.
It is formed by adhering to 2.

Next, the action of the single winding IBM when forming the coil of the video head a will be explained. First, one video head a is attached to each jig A. The video head a is clamped within the recess 20 of the support member 17 by the pressing member 18, and at this time, the support member 17 is moved on the seating surface of the column 12 to adjust its position on the core 6.

In addition, the initial setting device G
Set to . The wire W cuts the tip of the guide portion W1 into the cutter 6.
It is held by the grip part 606 in a state in which it is in contact with the rear surface of 05.

Then, the jigs A are loaded into the carrying device C one by one. Carrying in and loading C moves the jig A on the substrate 112 by repeating the movement of the feeding member 110 forward, leftward, backward, and rightward. 1ill for 1
Each jig A is moved along the guide rail 113 while being held down one by one, and when each jig A faces the stand B1 of the support device B, the moving stand 101 moves forward to move the jig A onto the stand B1. Mobile platform 1
When 01 retreats to its initial position in preparation for the next loading,
The support device B fixes the jig A on the stand Bl with the holders 56 and 57, raises the movable stand 85d, and sets the video head a of the jig A at the anchor position.

When the second wire gripping device F1 moves to the rear of the grip portion 606 of the initial setting device G and holds the wire W with the grip portion 502, the grip portion 606 of the initial setting device G releases the wire W. The grip portion 502 moves toward the guide nozzle device H and guides the wire W through the guide nozzle 704 to the hole n of the head base b. When the wire W passes through the head base b, an optical sensor (not shown) of the initial setting device G detects the next guide portion W1 of the wire, and the grip portion 6
06 and cut the wire W just before the guide portion W1 using cutters 604 and 605.

On the opposite side, the No. 2 wire gripping device F2 is connected to the video head a.
When the guide portion W1 inserted through the 60 of the head base b is held by the gripping portion 402, the gripping portion 502 of the second wire gripping device F1 releases the wire W. The grip portion 402 moves in the direction away from the video head a, and at this time the slide plate 7 of the guide nozzle device H
07 clamps the rear end of the wire W, the grip part 402
Due to the movement of , the coil spring 429 is compressed and tension is applied to the wire W.

In this state, the anchor bin 27 is pushed by the external driving means from the back of the jig table B1, the moving table 84C185d moves to sandwich the wire W in the gap between the head and the column 12, and the pressing force of the external driving means is increased. When released, the anchor pin 27 fixes the wire W by the force of the coil spring.

When the guide nozzle device H moves to the retracted position, the moving table 8
5d further rises to set the video head a to the winding position. At the same time, the wire guide device D2
4 to align with the core hole I of the head core part C, and the second wire gripping device F2
moves so as to approach the first wire gripping device E2,
The grip part 502 holds the wire W, and at the same time the grip part 402 releases the wire W. When the grip portion 502 rotates 180 degrees around a vertical axis 516, the tip of the guide portion W1 moves toward the head core portion C and is inserted into the core hole K through the guide groove 305 of the wire guide device D2. At this time, the guide portion W1 is connected to the magnet 306 of the guide member 304.
The material is attracted by the material and is reliably guided into the core hole along the groove 305.

Further, when the first wire holding device E1 moves to the video head a on the opposite side and holds the guide portion W1 inserted into the core hole I (through the core hole I) with the gripping portion 402, the second wire holding device WF
The first gripping portion 502 releases the wire W. Grip part 4
02 moves in the direction away from the video head a, and tension is applied by compression of the coil spring 429. When the second wire gripping device F1 approaches the first wire gripping device E1 and holds the wire W with the gripping portion 502, the gripping portion 40
2 opens the wire W.

When the grip portion 502 rotates 180 degrees and directs the guide portion W1 toward the head core portion C, the movable stage 84c of the support device B slightly moves in the y-axis direction. As a result, when the gap l between the head core parts C coincides with the tip of the guide part W1, the grip part 50
2 moves to insert the guide portion W1 into the gap l. On the opposite side again, the first wire gripping device E2 holds the guide portion W1, and when the -25th wire gripping device F1 releases the wire W, it moves in the direction away from the video head a and applies tension to the wire W. .

Next, each wire pressing device B2 of the support device B is activated to press the winding portion W1 of the head core portion C with the pressing member 67. At the same time, the second wire gripping member F2 approaches the first wire gripping member E2, and the gripping portion 502
Hold 1. When the first wire gripping device E2 releases the wire W, the gripping portion 502 rotates 180 degrees to direct the tip of the guide portion W1 toward the video head a, and the movable stage 84c of the support device B moves slightly to hold the core hole K. Guide part W1
When aligned with the tip, the guide portion W1 is moved to be inserted into the core hole K.

Then, when the first wire gripping device WEI holds the guide portion W1 in place of the second wire gripping device F2 on the opposite side and applies tension by moving, the wire holding device B2 of the supporting device B is in turn held by the holding member 68 holds the winding portion W2.

In this way, the first wire W is formed, and by repeating this process for the required number of turns, when the formation of the coil g is completed, the next coil h of the same helad core portion C is formed.

When the wire kite device D1 rises to the retracted position, the first wire gripping device E1 applies tension to the wire W, and the rotary table 85a of the support device B winds the wire W around the 180-degree rotary head core portion C. As the wire guide device D1 descends to a predetermined position, the moving table 84c of the support device B moves slightly in the y-axis direction, and when the guide groove 305 of the kite member 304 and the core hole K of the helad core portion C match, the wire While holding down the winding portion W2 of the head core portion C with the holding member 68 of the holding device B2, the second wire holding device F1 holds the wire W in place of the first wire holding device E1, and holds the tip of the guide portion W1 against the head core. Move toward part C and insert into core hole K through groove 305.

On the opposite side, the first wire gripping device E2 holds the wire W in place of the second wire gripping device F1, and applies tension to the wire W by movement. When the wire guide device D1 rises, the rotary table 85a of the support device B rotates 180 degrees in the same direction again, and further rotates the wire W to the head core C.
Wrap it around.

Then, when the wire guide device D2 descends and the support device B moves slightly, when the guide groove 305 and the core hole I (or coincide with each other), the holding member 6 of the wire holding device B2 is moved.
7, while holding the winding part W2, the second wire gripping device F2 holds the wire W from the first wire gripping bag WB2, moves the tip of the guide part W1 toward the core part C, and passes it through the wire 305. Insert into core hole K. Then, the coil h is formed by repeating such an operation for the required number of turns.

By the way, when winding the coils g and h, the wire W is guided by the wire guide devices Dr and D2 so as to be inserted into the core hole K of the head core part C, but the guide portion W1 is guided along the groove 305 of the guide member 304. and pulled out to the other side,
The succeeding winding part W2 sag downward due to its own weight and is wound around the head core part C from below, and when tension is applied, it is brought to the narrowest center by the elliptical core hole K, and then The winding portion W2 is pushed up (see FIG. 22). Therefore, the windings of the core portion C do not overlap or separate, and the wire W can be wound in alignment accurately and reliably.

When the formation of the coils g and 11 is completed, the guide nozzle device H moves to the initial position while tension is applied to the wire W by the first wire gripping device E2, and the support device B
When the moving tables 84c and 85d move slightly in the X-axis and y-axis directions, and thereby the kite nozzle 70.4 and the hole n in the head base are aligned, the second wire gripping device F2 moves to the first wire gripping bag. Hold the wire W instead of WE2, move the tip of the guide portion W1 toward the head base, and insert it into the guide nozzle 704 through the wire 60. When the first wire gripping device E1 on the opposite side holds the guide portion W1 passing through the guide nozzle 704 and applies tension, the slide plate 707 of the guide nozzle device H operates to hold the winding portion W1.
At the same time as the rear end is held, the blade #709 rotates and cuts the guide portion W1.

In this state, the anchor pin 28 is pushed from the back of the jig table B1, and the winding portion W is pushed by the movement of the movable tables 84c and 85d.
2 is sandwiched between the head and the column 12, the pressure on the anchor pin 28 is released, and the head fixes the wire W by the force of the coil spring.

In this way, the coil g for one head core portion C is
, 1-1 is completed, the process moves on to forming the coils g and h for the remaining head core portion C. When the winding is completed by repeating the same operation, the rotary table 85a of the support device B is rotated by 180 degrees. Direct the jig A on the table B1 toward the unloading device ■. Then, the carrying-out device (2) carries out the jig A, which has been removed from the stand B1 by the supporting device B, from the winding machine M by operating in the opposite manner to that of the carrying-in device C. Note that when the winding for both helad core parts C is finished, a new jig A or the carrying-in device C is loaded, and the carrying-out of the jig A whose winding has been completed begins, and the rotary table 85a of the support device B is moved. When it is turned over to the loading device C side, the loading device WC moves new jigs A onto the table B301, and winding is started again for the video heads a of these jigs A.

(Effects of the Invention) In summary, according to the present invention, in a coil winding machine for a magnetic head, the width of at least the portion of the head core portion around which the wire is wound is narrowest at the center, and gradually widens as it moves away from the center in the vertical direction. A wire guide device is provided to guide the wire through the core hole formed in an arc shape, and a guide groove is formed on the lower surface of the guide member into which the magnetic wire portion at the tip of the wire is inserted. Since we installed a magnet that attracts the wire into the groove, when the magnetic wire part of the wire is pulled out to the opposite side along the guide groove of the wire guide device when winding the coil, the following winding part will sag downward due to its own weight. It is wound around the helad core part from below, and when tension is applied, the core hole moves to the narrowest center and pushes up the previous winding part. Therefore, the wires can be wound in alignment accurately and reliably without overlapping or separating the windings. In other words, the effect of improving the yield of one winding process can be obtained.

[Brief explanation of drawings]

The drawings show an embodiment of the winding machine of the invention. FIG. 1 is an external perspective view showing the overall structure of the winding machine. 2 to 4 show the structure of the jig, with FIG. 2 being a plan view, FIG. 3 being a front view, and FIG. 4 being a partially sectional side view. Figures 5 to 11 show the configuration of the support device. Figure 5 is an external perspective view showing the overall configuration of the device, Figure 6 is a partial configuration diagram of the drive mechanism, and Figure 7 is the jig stand. 8 is a front view, FIG. 9 is a right side view, FIG. 10 is a rear view, and FIG. 11 is a left side view. Fig. 12 is an external perspective view showing the overall structure of the jig carrying device, Fig. 13 is a partial front view showing the structure of a part of the wire guide device, and Fig. 14 is a front view of the first wire gripping device. be. 15 to 17 show the configuration of a portion of the second wire gripping device, with FIG. 15 being a plan view, FIG. 16 being a front view, and FIG. 17 being a left side view. FIG. 18 is an external perspective view showing the configuration of the initial setting device and the guide nozzle device 2. Figures 19 and 20 show the configuration of the video head. Figure 19 is a front view,
Figure 0 is a partially enlarged front view. FIG. 21 is a configuration diagram of the wire used for winding, and FIG. 22 is an explanatory diagram showing the winding state of the wire. A... Jig, B... Support device, C... Carrying device,
Dl, D2...Wire guide device, El, E2...
First wire gripping device, Fl, F2... Second wire gripping device, G... Initial setting device, H... Guide nozzle device, ■... Carrying out device, a... Video head, C
... Head core part, g, h ... Coil, K ... Core hole, W ... Wire, Wl ... Guide part, 304.
... Guide member, 305 ... Guide groove, 306 ... Magnet. 3 6 Fig. 10 67 Simplified 0 2 71 / 73 JP-A-3 220706 (12) 11 Fig. 3 2B2

Claims (1)

[Claims] 1. In a coil winding machine for a magnetic head, the wire is inserted into a core hole formed in at least the part of the head core where the wire is wound in an arc shape with the width being narrowest at the center and gradually widening as it moves away from the center in the vertical direction. A wire guide device is provided to guide the wire through the wire, and a guide groove is formed on the lower surface of the guide member into which the magnetic wire portion at the tip of the wire is inserted, and a magnet is provided to attract the magnetic wire portion of the wire into the groove. Coil winding machine.