JPH07161565A - Toroidal winding method and its equipment - Google Patents

Abstract

PURPOSE:To improve the quality of a toroidal winding while simplifying constitution by reciprocating an inserting head device while rotating a rotary table in conformity with the movement of the inserting head device. CONSTITUTION:An inserting head device being reciprocated by a feed screw lever while being energized in the axial direction and being able to be moved in the axial direction by the tension of a wire rod W is mounted on a substrate 1, and a rotary table 18 can be reciprocated on the substrate 1 as the travelling path of the inserting head device. An endless belt 24 is disposed in tension on the rotary table 18 so that a core C rotates on its own axis while being held. A clamping device 31 is reciprocated to the rotary table 18 in the vicinity of the core C in a freely vertically movable manner, and installed so as to grip the wire rod W. An abutting device 51 is set up to the rotary table 18 oppositely facing to the clamping device 31 so as to be abutted against the side face of the core C by bending the tail tip of the wire rod W, and a coil hold-down device is mounted on the rotary table 18 so as to hold the wire rod W wound on the core C.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, noise prevention for OA electric equipment such as personal computers, word processors, printers, etc., and spiral wire rods (conductors) in the core of electromagnetic coils used for noise filters and power supply switching regulators. TECHNICAL FIELD The present invention relates to a toroidal winding method and an apparatus thereof.

[0002]

2. Description of the Related Art Conventionally, this type of toroidal winding method and its apparatus are constructed as shown in FIGS. 15 and 16 (Japanese Patent Laid-Open No. 1-272105).

In FIGS. 15 and 16, a winding ring b is attached to one side of a coil storage ring a which is rotatable and has a peripheral groove a1 having a U-shaped cross section. A guide piece c having a guide hole c1 and a guide roller d are attached to the wire ring b. A gear e is integrally provided on the outer periphery of the side surface of the coil storage ring a, and a core f is provided in a part of the coil storage ring a.
Is provided with an opening (not shown) into which is inserted.

Therefore, in the above-described toroidal winding method and its apparatus, the wire g is wound in the circumferential groove a1 in advance, and the core f is inserted through the opening of the coil storage ring a.

Next, after winding the core f around the tip end of the wire g, the gear f is rotated and the coil storage ring a integrated with the gear is rotated, and the core f is slowly moved to the imaginary axis. The wire g is wound around the outer periphery of the core f by rotating around.

On the other hand, the toroidal winding method and its apparatus are constructed as shown in FIG.
72105).

In FIG. 17, an output shaft i1 of a drive motor i is mounted on a holding member h1 of a substrate h so as to project upward, and the holding member h1 near the output shaft i1 is
A plurality (only one is shown in the figure) of friction rollers j is a support shaft j1.
Is supported by. A core f is provided on the substrate h so as to rotate around an imaginary axis, and a storage bobbin k around which a wire g is wound is provided inside the core f. It is rotatably mounted on the pin shaft m1 of.

Therefore, in the toroidal winding method and apparatus described above, the wire g is wound and placed in the storage bobbin k in advance. Next, after winding the core f around the tip of the wire g, the core f is slowly rotated around the virtual axis while rotating the winding ring m and the storage bobbin k. A wire g is wound around the core f.

[0009]

However, in the former toroidal winding method and apparatus described above, the storage ring and the winding ring are opened every time one core is wound, and the core is inserted, and then the storage is performed. Not only the wire must be wound around the storage ring by complementing the openings of the ring and the winding ring, but as shown in FIG.
Since 1 and the axis O of the coil storage ring a are eccentric by the distance L, the pulling or loosening operation of the wire rod g is alternately repeated during winding, causing disorder in the winding of the core f, It is difficult to tightly wind the wire material g around the core f, and it is difficult to improve the quality of the toroidal winding.

On the other hand, in the latter toroidal winding method and apparatus described above, the storage bobbin k is provided in the hole of the core f, and the storage bobbin k is rotated while slowly moving the core f to the virtual axis. By turning around, the core f
Since the wire g is wound around the outer circumference of the wire, it is difficult to wind the wire by incorporating the storage bobbin k into a small-diameter magnetic core having an inner diameter of about 3 mm.

On the other hand, in another method and apparatus for winding a toroidal core, after inserting the wire into the winding hole of the toroidal core, the core is rotated in the wire winding direction,
After that, the wire is wound tightly, then the core is rotated back to the original position, and the wire is wound around the toroid while being tensioned and wound around the core (JP-A-61-259515). ). Further, another winding device performs a toroidal winding while holding a work (core) with a pair of left and right holding claws and pulling the wire rod through a hole of the work with a pair of front and rear wire rod holding claws (Japanese Patent Laid-Open Publication No. Sho. 62-13
6479). Still another magnetic head winding method includes an inserting step of inserting a wire into a winding hole of the magnetic core from one surface of an upright magnetic core, a drawing step of pulling out a tip of the wire from the other side surface of the magnetic core, and a magnetic step. A magnetic head having a tightening step of tilting the core so that the wire bends at an obtuse angle in a winding hole to apply tension to the wire, and a winding step of rotating the magnetic core in a horizontal plane to wind the wire around the magnetic core. Winding method (JP-A-2-11910)
No. 8) etc. have already been proposed. However, not only are these structurally complicated and complicated to assemble and adjust, but it is theoretically possible to wind a wire around an extremely small magnetic core with an inner diameter of about 3 mm, but in reality, winding of the core is actually possible. It is difficult to tightly wind the wire around the core due to slack in the core, and it is difficult to improve the quality of the toroidal winding.

In order to solve the above-mentioned problems, the present invention improves the quality of the toroidal winding and simplifies the structure by redrawing the wire rod in the winding hole of the core and tightly winding it with only one insertion head device. It is an object of the present invention to provide a toroidal winding method and device that facilitates assembly and adjustment and maintenance and inspection, and allows one operator to manage the production of several tens of units.

[0013]

According to the present invention, a wire rod, which has been cut into a predetermined size, is gripped by an insertion claw of an insertion head device that linearly moves back and forth, and the insertion head device is moved forward to move on a rotary table. The step of pulling the tip of the wire through the core held by the endless belt, and the tip of the wire is grasped by the grasping claw of the clamp device provided on the rotary table so as to be able to move up and down, and at the same time, the insertion claw is opened. A step of releasing the wire rod and rotating the rotary table by about 180 ° to change the direction of the core in the state where the wire rod is released, and the tip of the wire rod is gripped by the insertion pawl, and at the same time the gripping pawl is opened to release the wire rod and the clamping device. Is retracted from the running path of the insertion head device, the insertion head device is moved back and the tail end of the wire rod is moved to a position where it does not slip out of the core, and the tail end of the wire rod is bent by an abutment device. Holding the wire rod so that it does not come loose, and returning the insertion head device until tension is applied to the wire rod, and then rotating the rotary table by about 180 ° to change the direction of the core and move the wire rod to the core. The step of winding and holding the wire rod on the outer periphery of the core by the core pressing device, and the forward movement of the insertion head device after turning the insertion hook of the insertion head device to pull the tip of the wire rod into the core and hold the wire rod of the clamp device. The step of opening the insertion pawl and releasing the wire rod at the same time as grasping the wire rod and rotating the rotary table by about 180 ° to change the direction of the core while keeping the state as it is, and grasping the wire rod with the insertion pawl and simultaneously holding the grasping pawl. A step of opening and releasing the wire rod, retracting the clamp device from the traveling path of the insertion head device, and returning the insertion head device, and winding a predetermined number of turns of the wire rod on the core. Winding method and an insertion head device reciprocally provided on the substrate and having an electric wire insertion claw, a rotary table provided on a traveling path of the substrate insertion head device, and a core provided on the rotary table. Endless belt stretched so as to rotate the core while holding the core, a clamp device having a gripping claw that is vertically movable on the rotary table near the core and grips the wire rod, and a wire rod provided on the rotary table A toroidal winding device, comprising: an abutting device provided so as to be bent to abut the side surface of the core, and a coil pressing device provided to hold the wire wound around the core. Is.

[0014]

First Embodiment A first embodiment of the present invention will be described below. First, the outline of the toroidal winding device will be described with reference to FIGS.

In FIGS. 7 to 9, reference numeral 1 is a flat substrate on which an elongated bracket 2 is attached.
Are horizontally provided, and a pair of bearings 3 are attached to both ends of the bracket 2. Also, both bearings 3
, A feed screw rod 4 by a ball screw is rotatably mounted, and the rotary shaft 4a of the feed screw rod 4 is
The pulley 5 is mounted on the shaft. Further, a drive motor 6 such as a servo motor is connected to the pulley 5 via a transmission belt 7 so as to be able to rotate in the forward and reverse directions. The feed screw rod 4 has an insertion head for inserting the wire rod w into the core C. When the device 8 reciprocates and is axially urged by a spring, the wire w
It is provided so as to be movable in the axial direction by the tension.

As shown in FIGS. 7 to 9, the base portion 9a of the slide body 9 of the insertion head device 8 is screwed onto the feed screw 4, and the insertion head 10 is attached to the free end of the slide body 9. Are vertically movably urged in the axial direction against the feed screw 4 so as to be movable in the axial direction by the tension of the wire rod w. At the lower end of the insertion head 10, an insertion claw 11 grips or releases the end of the wire w according to a command from a control device (not shown), and is rotatable about the support shaft 10a. It is attached.

On the other hand, as shown in FIGS. 7, 10 and 11, on the substrate 1 on the transfer path of the insertion head device 8, the wire rod w from the winding bobbin (not shown) is cut by the clamp device 13. The wire rod w is cut by the cutter device 14 at the same time as it is gripped, and is vertically installed so as to move up and down. That is, the lifting cylinder 15 is erected on the substrate 1 on the transfer path of the insertion head device 8, and the output shaft 15a of the lifting cylinder 15 cuts the clamp device 13 that holds the wire w and the wire w. The cutter devices 14 for cutting are arranged side by side. This cutter device 14 has a wire rod w measured by each cutter 14a to a predetermined length.
While holding the wire rod w by the holding claws 13a of the clamp device 13, the wire rod w is held by each cutter 14a of the cutter device 14.
A guide plate 14b for the wire rod w is attached to a part of the cutter device 14.

On the other hand, as shown in FIGS. 1 to 3, the substrate 1 below the transfer path of the insertion head device 8 is provided with, for example, a reciprocating servo motor 16.
The output shaft 16a of the servomotor 16 penetrates the substrate 1 and extends upward. A bearing 17 is provided on the substrate 1 on which the output shaft 16a is located so that the output shaft 16a can rotate.
The bases of the two rotary tables 18 connected to 6a are exchangeable and are pivotally mounted so as to reciprocally rotate about 180 °. Further, as shown in FIG. 3, the stoppers 18 are arranged in the diametrical direction on the back surface of the rotary table 18.
a and 18b are provided vertically, and the stoppers 18a and 18b are
Reference numeral 18b denotes buffers 19a, 1 provided on the substrate 1 so as to project therefrom.
The rotation position of the rotary table 18 is regulated by abutting against 9b.

Further, as shown in FIG. 2, a first frame 20 and a second frame 21 are provided on the turntable 18.
Are erected together with a gap. As shown in FIGS. 2 and 5, a plurality of guide rollers 22a, 22b, 22c surround the core C on the inner upper portion 20a of the first frame 20 located at the center of the rotary table 18 so as to surround and hold the core C. It is mounted on. A motor 23 such as a rotary actuator or a pulse motor is attached to the lower portion of the first frame 20 so as to rotate.
An endless belt 24 such as a timing belt is attached to the output shaft 23a of the motor 23 and the guide rollers 22a, 22b and 22c, for example.
The height of the insertion claw 11 is such that the core C is stretched so as to rotate while holding the core C so as to surround the core C from the outside.
Further, as shown in FIG. 2, the opening / closing cover member 25 is provided on the first frame 20 in the vicinity of the guide roller 22c so as to be opened and closed by the operation lever 26 so that the core C is not pulled out laterally. In other words, this operation lever 26 is
By rotating about a as a fulcrum, the opening / closing cover member 25 is pushed upward to allow the core C to be taken in and out laterally. Further, a tension cylinder 27 is provided in the middle of the first frame 20 so as to apply a tension (tension) to the endless belt 24 by the roller 27a of its output shaft. Is retracted so that tension is not applied.

As shown in FIGS. 1 and 3, a first lifting cylinder device 28 is installed on the rotary table 18 located on one side surface of the core C. In the pedestal 29 integrated with the output shaft 28a of the first lifting cylinder device 28,
The retracting cylinder device 30 is provided horizontally so as to face one side surface of the core C so as to be capable of reciprocally sliding the output body 30a outward, and the output body 30a is provided with a clamp having a grip claw 31a. The device 31 is provided so as to grip the end of the wire w.

Therefore, the grip claws 3 of the clamp device 31
When 1a grips the wire w that has passed through the hole of the core C, the retracting cylinder device 30 moves outward by a predetermined length and stops. When the rotary table 18 is rotated, the grip claws 31 a are moved down to a position where they do not interfere with the insertion claws 11 of the insertion head device 8.

As shown in FIGS. 3 and 4, a second elevating cylinder device 32 is vertically installed on the second frame 21, and an output shaft 32a of the second elevating cylinder device 32 is provided.
A pressing cylinder device 34 is horizontally attached to a holding member 33 integrated with the pressing member 35, and a wire rod w through which the pressing plate 35 has passed through the hole of the core C is bent on an output body 34a of the pressing cylinder device 34. It is installed horizontally so that it bends and pushes the spine of paper toward the back. The pressing cylinder device 34 having the pressing plate 35 and the second elevating cylinder device 32 constitute an abutment device 51.

Second lifting cylinder device 32 of contact device 51
Is driven, the output shaft 3 of the second lifting cylinder device 32 is driven.
When the holding member 33 integrated with 2a descends together with the holding cylinder device 34, the holding plate 35 bends the end of the wire rod w that has passed through the hole of the core C. When the pressing cylinder device 34 is further driven, the side surface of the core C presses and holds the end portion of the bent wire w by the pressing plate 35 of the output body 34a.

As shown in FIG. 4, the rotary table 18 is provided with the first elevating / lowering cylinder device 28.
A support plate 29 is horizontally attached to the output shaft 28a of the first lifting cylinder device 28. Also, this support plate 29
Is provided with a wire guide cylinder device 38. The output shaft of the wire guide cylinder device 38 guides the wire rod w to the hole of the core C when the pair of guide rods 38a are closed. It is attached so as to form the hole 38b.

As shown in FIG. 2, a bracket 39 is attached to the rotary table 18, and a coil pressing device 40 is pivotally attached to the bracket 39 by a pin shaft 40b. Further, on the output shaft 40a of the coil pressing device 40, the wire rod w in which the pressing claw 41 is wound around the core C is provided.
Is held by a pin 42, and the base of the pressing claw 41 is pivotally attached to a part of the first frame 20 by a support shaft 43. Further, on the turntable 18, the third
The frame 54 is erected, and the third frame 54
A lower guide cylinder device 44 is provided at an upper part of the lower guide cylinder device 44 with a slight inclination. The lower guide plate 45 is attached to the output body 44a of the lower guide cylinder device 44 by the kink phenomenon of the wire rod w (twist phenomenon of the wire rod w). ) Is provided horizontally so that the core C is at the height of the core C. Furthermore, the rotary actuator 4 is attached to the base portion 45a of the lower guide plate 45.
6, an upper guide plate 47 is pivotally supported on the output shaft 46a of the rotary actuator 46, and the upper guide plate 47 overlaps with the lower guide plate 45 to sandwich the wire w from above and below. Prevents the kink phenomenon.

As shown in FIGS. 1 and 6, a tilt cylinder device 48 is attached to a part of the first frame 20, and a pinch cylinder device 49 is provided on an output body 48a of the tilt cylinder device 48. It is provided. The guide rollers 50 are axially mounted on the pair of sandwiching rods 49a of the sandwiching cylinder device 49 so as to sandwich the wire rod w and prevent the kink phenomenon.

As shown in FIG. 4, the wire rod w cooperates with the wire guide cylinder device 38 for guiding the wire w into the hole of the core C, and the upper guide plate 47 and the lower guide plate 45 shown in FIG. The kink prevention device 52 for sandwiching the wire rod w and the kink prevention device 53 for sandwiching the wire rod w between the guide rollers 50 to prevent the kink phenomenon have a relatively large hole in the core C and a wire rod w. It is not necessary if there is no kinking phenomenon.

Hereinafter, for convenience of explanation of the operation of the present invention,
(1). Winding start step (2). It will be described separately from the winding step.

(1). Winding start step In FIGS. 7 and 12 (A) (B) (C) (D), the clamp device 1 of the cutting unit 12 that has been lowered in advance.
3 (see FIG. 10) holds the end of the wire rod w from a winding bobbin (not shown).

Next, when the drive motor 6 rotates the pulley 5 via the transmission belt 7, the ball screw 4 interlocked with the pulley 5 is rotated.
Since the rotating head rotates the insertion head device 8
2, the insertion head device 8 passes through the clamp device 13 and stops. Then, the lifting cylinder device 15 of the cutting unit 12 is driven, and the clamp device 13 and the cutter device 14 are lifted to a predetermined position. Then, by a command from a control device (not shown),
At the same time when the open insertion claw 11 grips the tip w1 of the wire w, the clamp device 13 opens. Next, the cutting unit 12 descends, the ball screw 4 is rotated in the reverse direction, the insertion head device 8 is moved forward, and the wire rod w required to wind the core C is measured and pulled out to a predetermined length. Stop. next,
The cutting unit 12 rises and the wire rod w is clamped by the clamp device 13. Next, the cutter device 14 of the cutting unit 12 is operated to cut the wire w into a fixed size and the cutting unit 12 descends downward.

Next, as shown in FIGS. 12 (A) and 12 (B),
In the first step, the ball screw 4 is rotated in the reverse direction while the tip w1 of the wire w previously cut to a predetermined size is held by the insertion claw 11 of the insertion head device 8, and the insertion head device 8 is rotated forward. The tip w1 of the wire rod w is pulled through the core C held by the endless belt 24 on the table 18, and the insertion head device 8 stops while holding the wire rod w.

As shown in FIG. 12 (C), in the second step, the tip w1 of the wire w can be moved up and down on the turntable 18 so as to reciprocate back and forth.
While being gripped by the first grip claw 31a, the retracting cylinder device 30 slightly moves outward and the rotary table 18 moves about 1
When rotated by about 80 °, the grip claws 31a move to the insertion claws 1 described above.
1, the insertion claw 11 is opened and the wire w is released. Thereafter, the rotary table 18 is rotated by about 180 ° in that state to change the orientation of the core C (see FIGS. 12D and 13A).

As shown in FIG. 13B, in the third step, the tip w1 of the wire w is gripped by the insertion claw 11 and at the same time the grip claw 31a is opened to release the wire w, and the grip claw 31a is moved to the first lifting cylinder. The device 28 is driven to descend together with the retracting cylinder device 30, and is retracted from the traveling path of the insertion head device 8. Then, the insertion head device 8 moves back to move the tail end w2 of the wire rod w to a position where it does not slip out of the core (see FIG. 13C).

As shown in FIGS. 4 and 13D, the fourth
When the second lifting cylinder device 32 is driven in the process, the tail end w2 of the wire rod w that has passed through the hole of the core C is bent by the holding plate 35 that descends together with the holding cylinder device 34, and the holding cylinder device 34 moves. When it is driven, the holding plate 35 presses the tail end w2 against the side surface of the core C and holds it so as not to loosen the side surface of the core (see FIG. 13E).

As shown in FIGS. 2 and 13 (F), the fifth
After the insertion head device 8 is moved until tension acts on the wire rod w in the process, the rotary table 18 is reversely rotated by about 180 ° to change the direction of the core C, and the wire rod w is wound around the core C first and is then attached. The coil retainer 40 of the contact device 51 is driven, and the retainer claw 41 holds the wire w on the outer periphery of the core C so as not to loosen.

Thus, the winding start step of winding the wire w around the core C is completed.

(2). Winding Step As shown in FIG. 14 (A), in a sixth step, the insertion head 10 of the insertion head device 8 is rotated about 180 ° to change its direction in response to a command from a controller (not shown).

Next, the ball screw 4 is rotated in the reverse direction while the tip w1 of the wire rod w is gripped by the insertion claw 11 of the insertion head device 8, and the insertion head device 8 is moved forward to move the tip of the wire rod w to the core C. Through w1, the insertion head device 8 stops while holding the wire w (see FIG. 14B).

As shown in FIG. 14C, the tip w1 of the wire w is gripped by the grip claws 31a of the clamp device 31, and the retracting cylinder device 30 moves slightly outward and at the same time the insert claw 11 moves. It is opened to release the wire w. Then, the rotary table 18 is rotated about 180 °
The direction of the core C is changed by rotating it about a degree (FIG. 14 (D)).
reference).

As shown in FIG. 14 (E), the tip w1 of the wire w is gripped by the insertion claw 11 and at the same time the grip claw 31a is opened to release the wire w, and the grip claw 31a drives the first lifting cylinder device 28. Then, it descends together with the retracting cylinder device 30 and retracts from the traveling path of the insertion head device 8. After that, the insertion head device 8 moves back to pull and move the wire rod w and stop. Insertion head device 8 when stopped
When a sudden tension is applied between the insertion claw 11 and the tip w1 of the wire w, it is expected that the wire will be broken, so that the insertion head device 8 is urged in the axial direction by a buffer mechanism such as a spring to make a sudden movement. At the same time that the tension is relieved, the tension sensor (not shown) detects the tension force (FIG. 14).
(See (F)).

As shown in FIG. 14 (G), the pressing claw 41 is returned, and the rotary table 18 is reversely rotated by about 180 ° to change the direction of the core C so that the tip w1 of the wire w is wound on the core C. The coil pressing device 40 is driven while rotating and winding, and the pressing claw 41 holds the wire rod w on the outer periphery of the core C so as not to loosen. In addition, the holding plate 35 is the tail end w of the wire w.
The operation of holding 2 so as not to loosen may be completed when the wire w is wound around the outer periphery of the core C about three times.

As described above, according to the present invention, the insertion head device 8 is repeatedly and reciprocally moved to wind the wire rod w around the core C a predetermined number of times.

The operation of the present invention is such that the winding start step and the winding step are continuously performed in one step.

As described above, according to the first embodiment,
The tip end of the wire that has been cut to a predetermined size is gripped by the insertion claw 11 of the insertion head device 8 that linearly moves back and forth, and the insertion head device 8 is moved forward to move the endless belt 24 on the rotary table 18.
When the tip W1 of the wire W is pulled through the core C held by the gripper and the tip W1 of the wire W is gripped by the gripping claw 31a of the clamp device 31 provided so as to be able to move up and down on the rotary table 18 and reciprocate. At the same time, the insertion claw 11 is opened and the wire W is released.
Rotate about 80 ° to change the direction of the core and
1 is gripped by the insertion claw 11, and at the same time, the grip claw 31a is opened to release the wire W and retracted from the traveling path of the insertion head device 8, and the insertion head device 8 is returned to move the tail end W of the wire W.
2 is moved to a position where it does not come out of the core C, the tail end W2 of the wire W is bent by the abutment device 51 and held so as not to loosen on the side surface of the core C, and the insertion head device 8 is held until tension is applied to the wire W. After returning, the rotary table 18 is turned backward about 180 ° to change the direction of the core C to wind the tail end W2 of the wire W around the core C, and the core pressing device 41 moves the wire W around the outer periphery of the core C. Holding and inserting claw 11 of this inserting head device 8
And the insertion head device 8 is moved forward to move the wire rod W to the core C.
Is a toroidal winding method in which the wire W is wound around the core C a predetermined number of times by reciprocating the insertion head device 8 repeatedly through the tip of the wire W, so that the wire W is wound around the small core C with high accuracy. Not only can it be turned, but the winding operation can be automated to save labor in mass production.

Further, an insertion head device 8 is provided on the substrate 1 which is reciprocally moved by the feed screw 4 and is axially urged to be movable in the axial direction by the tension of the wire W, and the insertion head device 8 runs. A rotary table 18 is rotatably and pivotally mounted on the base plate 1 of the path, and the endless belt 24 provided on the rotary table 18 is set to the height of the insertion claw 11 of the insertion head device 8 while holding the core C. The core C is stretched so as to rotate on its own axis, and the clamp device 31 is provided on the rotary table 18 near the core C so as to reciprocate up and down so as to grip the wire rod. The rotary table facing the clamp device 31 is provided. 18
A contact device 51 is provided so as to bend the tail end W2 of the wire W to contact the side surface of the core C, and the rotary table 18 is provided with a coil pressing device 40 for holding the wire W wound around the core C. Therefore, not only the wire rod W cut into a predetermined length by the only insertion head device 8 can be wound a predetermined number of times without waste, but also the configuration is simple, so that assembly adjustment and maintenance inspection are easy. It has an excellent effect such as Second Embodiment Next, a second embodiment of the present invention will be described with reference to FIGS. 18 to 31. The second embodiment is different from the first embodiment shown in FIGS. 1 to 14 in that a core supply device, a core transfer device, a brake device, an endless belt opening / closing mechanism, and a cutting processing device, which will be described later, are provided. is there.

In the second embodiment, the same parts as those in the first embodiment shown in FIGS. 1 to 14 are designated by the same reference numerals and detailed description thereof will be omitted.

First, as shown in FIG. 18, the toroidal winding device according to the present invention comprises a core supply device 60 provided on the base 1. The core supply device 60 includes a storage cylinder body 60a for accommodating a large number of unused cores C in a stacked manner, and a storage case 62 for supporting the lower portion of the storage cylinder body 60a. Is provided with a core supply portion 62a having an open upper end. Further, the core supply portion 62a and the storage cylinder body 60a are communicated with each other by a communication passage 63 provided in the storage case 62.

Further, the core C at the lowermost part in the storage cylinder 60a is extruded to the opposite side of the storage case 62 between which the storage cylinder 60a is sandwiched, and the core C is sent to the core supply section 62 side through the communication passage 63. An extrusion device 61 is provided.

Further, the base 1 is provided with a core transfer device 70 for transferring the unused core C of the core supply device 60 to the endless belt 24 (see FIG. 23) on the rotary table 18. The core transfer device 70 includes a core supply chuck 71 (see FIG. 24) that grips the core of the core supply device 60 with the tip 71a and transfers it to the endless belt 24, and a core C around which the wire w is wound with the endless belt 24. Core discharge chuck 7 which is gripped by 72a and is transferred to the discharge portion 65 provided on the base 1.
2 (see FIG. 24). Note that FIG. 23 shows the roller holding body 85 of the guide roller around which the endless belt 24 is stretched.

Next, the core transfer device 70 will be described with reference to FIG. The core transfer device 70 includes a core supply chuck 1
Holding body 70 for integrally holding the core discharge chuck 72 and the core discharge chuck 72
a, and the holder 70a holds the core supply chuck 7a.
1 and the core discharge chuck 72 move together. Here, FIG. 20 (B) is a view taken in the direction of the arrow B in FIG. 20 (A).

As shown in FIGS. 20A and 20B,
The holder 70a is configured to rotate about an axis line orthogonal to the base 1 by the rotation drive mechanism 73, and to rotate about an axis line parallel to the base 1 by the rotation drive mechanism 74.

Further, as shown in FIG. 21, on the rotary table 18, the gripping claws 31a of the pair of guide rods 38a are provided.
In the vicinity of the sides, in the same direction as the pair of guide rods 38a (see FIG.
A pair of brakes 7 that open and close (in a direction orthogonal to the bottom surface of 1)
A brake device 75 composed of 5a is provided. The pair of brakes 75a are driven by a brake cylinder 76.

Further, as shown in FIG. 22, the entrance / exit 8 of the core C of the endless belt 24 is on the rotary table 18.
A cutting processing device 80 for cutting the residual wire rod w after being wound around the core C is provided near the 7 side. The cutting apparatus 80 includes a fixed blade 81 and a movable blade 82 movably provided with respect to the fixed blade 81.

Next, the opening / closing mechanism of the endless belt 24 will be described with reference to FIG. Note that FIG. 23B is a view taken in the direction of the arrow B in FIG. The endless belt 24 is stretched over three guide rollers 22a, 22b, 22c, and the core C is inserted from the entrance 87 between the endless belts 24 stretched over the pair of guide rollers 22a, 22b. , 22b, the core C is held between the endless belts 24. The guide rollers 22a and 22b are the roller holder 8
5 and 86, respectively, and the roller holding bodies 85 and 86 are connected to the sliding bodies 85a and 86b, respectively. The sliding bodies 85a and 86a are connected to a parallel open / close type cylinder 88, and the parallel open / close type cylinder 88 causes the sliding bodies 85a and 86a to move in the vertical direction while sliding on each other. The roller holders 85 and 86 are also moved in the vertical direction by the movement of the sliding bodies 85a and 86a, so that the entrance / exit 87 of the endless belt 24 is opened and closed.

Next, the operation of this embodiment having such a configuration will be described. First, FIG. 18 and FIG.
27 to 27, the operation of transferring the core C from the core supply device 60 to the endless belt 24 side and discharging the core C in the endless belt 24 will be described.

In FIG. 18, a large number of unused cores C are stacked and housed in a housing cylinder 60a. Next, the lowermost core C in the storage cylinder body 60a is extruded by the pushing device 61 and is sent to the core supply portion 62a having an open upper end through the communication passage 63 in the storage case 62. In this way, a large number of cores C can be stored in the storage cylinder body 60a, and the cores C can be easily fed sequentially to the core supply portion 62a.

Next, the core C is supplied to the endless belt 24 side,
The action of discharging the core C from the endless belt 24 will be described. As shown in FIG. 24 (A), the core supply chuck 71 of the core transfer device 70 approaches the core supply part 62a, and the tip 71a of the core supply chuck 71 then moves to the core supply part 62a.
Enters into the core C (FIG. 24 (B)). Next, the core supply chuck 71 is opened and the core C is gripped by the tip 71a (FIG. 24 (C)), and then the core supply chuck 71 is raised to lift the core C from the inside of the core supply portion 62a (FIG. 24).
(D). Next, as shown in FIG. 24 (E), the core supply chuck 71 faces the horizontal direction while gripping the core C.

Next, as shown in FIG. 25 (A), the core supply chuck 71 turns 90 ° while holding the core C.
In this case, the core discharge chuck 72 and the core supply chuck 7
1s are arranged in parallel. Next, as shown in FIG. 25 (B), the core discharge chuck 72 moves the entrance / exit 8 of the endless belt 25.
It moves to the vicinity of 7 and stands by so that the core C around which the wire w is wound can be taken out. As shown in FIG. 25 (C), the core discharge chuck 72 allows the endless belt 25 to move in and out.
7, the core C in the endless belt 25 is clamped from both sides by the tip 72a of the core discharge chuck 72 (FIG. 25D).

Next, as shown in FIG. 23, the parallel open / close type cylinder 88 moves the sliding members 85a, 86a while sliding them in the directions away from each other, and the roller holding members 85, 86 are moved by the movement of the sliding members 85a, 86a. Also moves up and down. In this case, the guide rollers 22a and 22b held by the roller holders 85 and 86 move in the directions away from each other, and the entrance 87 of the endless belt 24 formed by the guide rollers 22a and 22b opens. By opening the entrance 87 of the endless belt 24 in this manner, the core C can be easily taken in and out.

Next, the wire rod w is clamped in the endless belt 24,
The core C wound around is taken out from the inlet / outlet 87 of the endless belt 24 by the core discharge chuck 72 (FIG. 25).
(E)).

Next, as shown in FIG. 26 (A), after the core C is taken out by the core discharge chuck 72, as shown in FIG.
As shown in (B), the core supply chuck 1 and the core discharge chuck 72 rotate 90 ° in the horizontal direction, and the rotary table 18 rotates to rotate the endless belt 24 180 °.

Next, as shown in FIG. 26 (C), the unused core C gripped by the core supply chuck 71 becomes
After approaching the vicinity of 7, it is inserted into the endless belt and 24 (FIG. 26 (D)). Thereafter, the parallel open / close type cylinder 88 slides the sliding members 85a and 86a in the vertical direction while sliding the sliding members 85a and 86a, and the roller holding members 85 and 86 move in the vertical direction as the sliding members 85a and 85b move. The doorway 87 of 24 is closed. Next, the core supply chuck 71
Is closed and the core C held by the tip of the core supply chuck 71 remains in the endless belt 24 (FIG. 27).
(A)).

Next, as shown in FIG. 27B, the core supply chuck 71 and the core discharge chuck 72 are connected to the endless belt 2.
4 to the discharge portion 65, during which the core supply chuck 71 and the core discharge chuck 72 are arranged from the horizontal direction to the vertical direction. Next, as shown in FIG. 27C, the core discharge chuck 72 is opened to drop the wound core C, and the core C is naturally dropped into the core discharge portion 65.

Next, as shown in FIG. 27D, the core supply chuck 71 approaches the core 62a of the storage case 62, and the above-described operation is repeated to supply and discharge the core C.

Next, with reference to FIG. 28 to FIG. 31, the winding start step and the winding step of winding the wire around the core C will be described.

The winding start step and the winding step shown in FIGS. 28 to 31 are obtained by adding the action of the brake device and the action of the cutting processing device to the process of the first embodiment shown in FIGS. 12 to 14. is there.

That is, as shown in FIG. 28A, first, the insertion claw 11 of the insertion head device 8 is moved to the tip w1 of the wire w.
Then, the insertion head device 8 moves forward to insert the tip w1 into the circular guide hole 38b formed by the pair of guide rods 38a. In this case, the pair of guide rods 38a
Is closed, and the circular guide hole 38b allows the tip w
1 can be sent to the core C side with high accuracy. Next, FIG.
As shown in (B), the insertion claw 11 causes the tip w1 of the wire rod w to pass through the circular guide hole 38b and the core C and reach the grip claw 31a.

Next, as shown in FIG. 28C, the grip claw 3
1a is closed to grip the tip w1 and at the same time, a pair of brakes 75 provided near the core C side of the pair of guide rods 38a.
The brake device 75 made of a is closed to hold the wire w.

After that, the insertion claw 11 is opened, and FIG.
As shown in (1), while holding the wire w by the brake device 75, the gripping claw 31a pulls the tip w1 of the wire w. In this way, by pulling the tip w1 with the gripping claw 31a while applying the brake to the wire rod w by the brake device 75, the tip w1 side of the wire rod w can be straightened.

In FIG. 28D, the rotary table 18 is rotated 180 ° in this state, and the pair of guide rods 38a, the brake device 75, the core C, and the gripping claws 31a on the rotary table 18 are inverted, The state becomes 29 (A).

Next, as shown in FIG. 29B, the insertion claw 11 of the insertion head device 8 holds the wire w. in this case,
Since the tip end w1 side of the wire rod w is straightened by the brake device 75, the wire rod w can be accurately grasped by the insertion claw 11.

Next, as shown in FIG. 29C, the brake device 75 is opened, and at the same time, the grip claw 31a is opened.
Then, the insertion head device 8 is moved back and the tip w1 of the wire w is pulled by the insertion claw 11. Next, as shown in FIG. 29 (D), when the tail end w2 of the wire w reaches the core C, the insertion head device 8 stops and the holding plate 35 presses the tail end w2 against the side surface of the core C. Do not loosen the tail end w2 of w. This state is shown in FIG.

Next, as shown in FIG. 29D, the rotary table 18 rotates 180 °, and the pair of guide rods 38a, the brake device 75, the core C and the gripping claws 31a on the rotary table 18 are accordingly moved. It is inverted, and the state shown in FIG. After that, the insertion claw 11 is reversed by 180 °, the insertion head device 8 moves back again, and the tip w1 of the wire rod w is moved to the core C.
Transfer to the side. Then, such an action is repeated, and the core C is rotated by the endless belt 24, so that the wire rod w is wound around the core C.

Next, referring to FIG. 30 and FIG. 31, after the wire rod w is wound around the core C, the remaining wire rod w is cut by the cutting device 8.
The operation of performing the cutting process at 0 will be described. First, FIG.
As shown in (A), the tail end w2 of the wire w is pressed against the side surface of the core C, and in this state, the wire C is wound around the core C while the core C is rotated by the endless belt 24 (FIG. 30). (A) to (C)). Next, as shown in FIG. 30 (D), when the core C is sufficiently wound with the wire rod w, the rotation of the core C is stopped. In this case, the tail end w2 of the wire w is stopped by the stop pin 90 provided on the roller holding member 85 so that it does not rotate too far.
Next, when the wire rod w is wound around the core C by a predetermined number of turns, the remaining wire rod w is cut by the cutting processing device 80.

The cutting processing operation of the cutting processing device 80 will be described in detail with reference to FIG. First, immediately before the cutting process, the opening of the core C faces a direction (direction of 90 °) orthogonal to the wire rod w gripped by the grip claw 11. At this time, the cutting device 80 is descending below the wire w. Figure 3
In FIG. 1 (A), one side surface of the core C is indicated by reference numeral 94 for convenience in order to clarify the orientation of the core C.

Next, the cutting device 80 moves up to the position of the wire w and the core C rotates, and the opening of the core C faces the direction of about 120 ° with respect to the wire w (FIG. 31).
(B)). In this state, the residual wire w is cut by the cutting device 80. After that, the core C further rotates and the opening of the core C is gripped by the grip claws 11 to be the wire w.
The horizontal direction (180 ° direction) with respect to the grip claw 1
The residual wire w gripped by 1 is transferred to the discharge chute 90 side and discharged from the grip claws 11 into the discharge chute 90.

The core C wound with the wire w by the predetermined number of turns is taken out from the endless belt 24 by the core discharge chuck 72 of the core transfer device 70 as described above, and then the core C is cored by the core discharge chuck 72. It is transferred to the discharge unit 65.

As described above, according to the second embodiment, the core C sent from the storage cylinder 60a of the core supply device 60 to the core supply portion 62a can be easily transferred into the endless belt 24 by the core transfer device 70. Can be transferred. In this case, by opening / closing the entrance / exit 87 of the endless belt 24 by the parallel opening / closing cylinder 88, the core C can be smoothly moved.
Can be put in and taken out of the endless belt 24.
Moreover, when pulling the wire w extending through the core C by the gripping claws 31a, so braking the wire w by the brake device 75, in a state of stretching the tip w ₁ of the wire w straight, inserting the tip w ₁ claw It can be grasped again by 11. Further, the wire rod w remaining after being wound around the core C is cut by the cutting device 80, so that the wire rod w
It is possible to transfer only the core C wound with and the residual wire w is cut into the core discharge portion 65.

[0079]

As described above, according to the present invention, the insertion head device is reciprocated, and the rotary table is rotated in accordance with the movement of the insertion head device, so that the wire is wound around the core by a predetermined number of turns. Can be turned. Therefore, even with a small core, the wire can be wound with high accuracy, and the winding operation can be automated, so that the mass production can be omitted.

[Brief description of drawings]

FIG. 1 is a plan view showing the essential parts of a toroidal winding method and device according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the chain line AA of FIG.

3 is a sectional view taken along the chain line BB of FIG.

FIG. 4 is a rear view showing only the main part of FIG.

FIG. 5 is an enlarged view of a core holding device incorporated in the present invention.

FIG. 6 is a side view of a kink prevention device incorporated in the present invention.

FIG. 7 is a plan view of the toroidal winding method and device of the present invention.

FIG. 8 is a front view of the insertion head device of the present invention.

FIG. 9 is a side view of the insertion head device of the present invention.

FIG. 10 is an enlarged side view of the cutting unit incorporated in the present invention.

FIG. 11 is a plan view of the same.

FIG. 12 is a view for explaining the operation of the toroidal winding method of the present invention.

FIG. 13 is a view for explaining the action of the toroidal winding method of the present invention.

FIG. 14 is a view for explaining the action of the toroidal winding method of the present invention.

FIG. 15 is a perspective view showing a main part of a conventional toroidal winding method and its device.

FIG. 16 is a view for explaining the operation of a conventional toroidal winding method and its device.

FIG. 17 is a partial cross-sectional view showing a main part of a conventional toroidal winding method and its device.

FIG. 18 is a perspective view showing the essential parts of a toroidal winding method and device according to a second embodiment of the present invention.

FIG. 19 is a plan view of the toroidal winding device.

FIG. 20 is a view showing a core transfer device of the toroidal winding device.

FIG. 21 is a diagram showing a brake device of the toroidal winding device.

FIG. 22 is a view showing a cutting processing device of the toroidal winding device.

FIG. 23 is a view showing an endless belt wound around a pair of rollers of the toroidal winding device.

FIG. 24 is a view showing the operation of the core transfer device of the toroidal winding device.

FIG. 25 is a view showing the operation of the core transfer device of the toroidal winding device.

FIG. 26 is a view showing an operation of the core transfer device of the toroidal winding device.

FIG. 27 is a view showing the operation of the core transfer device of the toroidal winding device.

FIG. 28 is a view showing an operation of the brake device of the toroidal winding device.

FIG. 29 is a view showing an operation of the brake device of the toroidal winding device.

FIG. 30 is a view showing an operation of the cutting processing device of the toroidal winding device.

FIG. 31 is a view showing an operation of the cutting processing device of the toroidal winding device.

[Explanation of symbols]

 1 substrate 4 feed screw rod 8 insertion head device 11 insertion claw 18 rotary table 24 endless belt 31 clamp device 40 coil holding device 51 contact device 60 core supply device 60a storage cylinder 61 extruding device 62 storage case 62a core supply unit 65 core discharge Part 70 Core transfer device 71 Core supply chuck 72 Core discharge chuck 75 Brake device 80 Cutting processing device 85,86 Roller holder 90 Discharge chute

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Satoshi Sato 18 Kidowara, Haramachi, Fukushima Prefecture Kidowaki Japan Automatic Machine Co., Ltd. Haramachi Plant

Claims (10)

[Claims] 1. A wire rod, which has been cut into a predetermined size, is held by an insertion claw of an insertion head device that reciprocates linearly, and the insertion head device is moved forward to move the wire rod to a core held by an endless belt on a rotary table. The step of pulling the tip of the wire rod and holding the tip of the wire rod by the gripping jaws of the clamp device provided on the rotary table so as to be able to move up and down, at the same time opening the insertion hook to release the wire rod, and rotating the wire rod as it is. The step of rotating the table about 180 ° to change the direction of the core, and grasping the tip of the wire with the insertion claw, at the same time opening the grasping claw to release the wire and retracting the clamp device from the running path of the insertion head device. Then, the step of moving the insertion head device back to move the tail end of the wire rod to a position where it does not slip out of the core, and a process of bending the tail end of the wire rod with an abutting device so as not to loosen it on the side surface of the core After returning the insertion head device until tension is applied to the wire rod, the rotary table is rotated about 180 ° to change the direction of the core to wind the wire rod around the core, and the core pressing device is used to wind the wire around the core. A step of holding the wire rod; rotating the insertion claw of the insertion head device, and then moving forward to pull the tip of the wire rod through the core, and grasping this wire rod by the gripping claw of the clamp device; and at the same time opening the insertion claw. A step of releasing the wire rod and rotating the rotary table by about 180 ° to change the direction of the core in the state where the wire rod is held; and the wire rod is gripped by the insertion claw and at the same time the gripping claw is opened to release the wire rod. A step of retracting the clamp device from the traveling path and returning the insertion head device, and winding a predetermined number of turns of wire around the core. 2. At the same time as grasping the tip of the wire by a grasping claw of a clamp device provided on a rotary table so as to be vertically movable,
2. When the insertion claw is opened and the wire is released, the wire is held by the brake device provided on the opposite side of the core from the clamp device, and the wire is pulled by the gripping claw toward the side away from the core. The toroidal winding method described. 3. The core is wound with the wire rod a predetermined number of times, and the residual wire rod after being wound is cut by a cutting device provided near the endless belt on the rotary table. The toroidal winding method described. 4. An insertion head device reciprocally provided on a substrate and having an electric wire insertion claw, a rotary table provided on a traveling path of the substrate insertion head device, and a core provided on the rotary table. An endless belt stretched so as to rotate the core while holding, and provided on the rotary table in the vicinity of the core so as to be able to move up and down,
A clamping device having a gripping claw for gripping the wire rod, an abutting device provided on the rotary table for bending the wire rod and contacting the side surface of the core, and a holding device for holding the wire rod wound around the core. Toroidal winding device. 5. A core supply device further provided on the base, the core supply device being connected to a storage cylinder for stacking and storing a large number of unused cores and a lowermost part of the storage cylinder. The toroidal winding device according to claim 4, further comprising: a core supply portion having an upper end opening; and an extruding device that extrudes a lowermost core of the storage cylinder body to the core supply portion. 6. An unused core of a core supply unit of a core supply device, which is provided on a base, is transferred to an endless belt on a rotary table, and a core on which a wire is wound in the endless belt is discharged to a discharge side. The toroidal winding device according to claim 5, further comprising a core transfer device for transferring. 7. The toroidal winding device according to claim 4, further comprising a brake device which is provided on the rotary table on the opposite side of the endless belt from the clamp device and holds the wire. 8. The endless belt is stretched around at least a pair of guide rollers, and the core is held by the endless belt between the pair of guide rollers, and the pair of guide rollers are brought into and out of contact with each other to open / close the entrance / exit of the endless belt. The toroidal winding device according to claim 4, wherein the core is inserted and ejected. 9. The toroidal winding device according to claim 4, further comprising a cutting device provided near the endless belt on the rotary table for cutting the residual wire after being wound around the core. 10. A storage cylinder for stacking and accommodating a large number of unused cores, an upper end opening core supply portion communicating with the bottom of the storage cylinder, and a bottom core of the storage cylinder. The core supply unit has an extrusion device for extruding the core supply unit, and a core supply unit provided on a base and an unused core of the core supply unit of the core supply unit are transferred to an endless belt on a rotary table, and The core around which the wire is wound in the belt is transferred to the discharge side, and the core transfer device provided on the base and the end of the endless belt on the rotary table are provided on the opposite side of the clamp device to hold the wire. The endless belt is stretched over at least a pair of guide rollers, and the endless belt between the pair of guide rollers holds the core, and the pair of guide rollers are provided with each other. It is configured to open and close the entrance and exit of the endless belt so as to insert and discharge the core, and provided in the vicinity of the endless belt on the rotary table, a cutting device for cutting the residual wire rod wound around the core. The toroidal winding device according to claim 4, wherein