JP2517559Y2 - Toroidal coil winding machine - Google Patents

Description

[Detailed description of the device]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toroidal coil winding machine that manufactures a toroidal coil by winding an electric wire around an annular core.

[Prior art]

FIG. 4 shows a conventional toroidal coil winding machine, and FIG. 7 shows a view of the toroidal coil winding machine of FIG. 4 as viewed from the right side. In these drawings, 1 is a shuttle ring drive motor, 2 is a rotary shaft, 3 is an idler gear, 4 is a shuttle ring, 5 is a storage ring, 5-1 is a wire storage groove,
6 is an engagement pin, 7 is a slip type brake, 7-1 is a spring,
Reference numeral 8 is an electric wire drawing tool, 9 is an annular core, 9-1 is a core hole, 10 is a stud, 11 and 12 are core feed rollers, 13 is an idler gear, 14 is a core feed roller drive motor, and 15 is a rotating shaft. . The shuttle ring 4 and the storage line 5 are both crossed with the annular core 9. Crossover is shuttle ring 4,
This is done by removing a part of the circumference of the storage ring 5 (not shown), inserting the annular core 9 from there, and reassembling the part of the removed circumference. On the outer circumference of the shuttle ring 4, teeth that mesh with the idler gear 3 are provided. Therefore, when the shuttle ring driving motor 1 rotates, its rotational force is transmitted to the rotary shaft 2 → the idler gear 3 → the shuttle ring 4, and the shuttle ring 4 rotates. A wire storage groove 5-1 is provided on the outer periphery of the storage line ring 5, and a wire wound around the annular core 9 is stored therein. An electric wire drawing tool 8 is integrally fixed to the shuttle ring 4. The electric wire drawing tool 8 guides the electric wire when the electric wire is pulled out from the storage line ring 5. FIG. 5: is a figure which shows the condition which an electric wire is pulled out from a storage line ring. Reference numerals correspond to those in FIG. 4, and 16 is an electric wire. The electric wire 16 is inserted into the electric wire drawing outlet 8-1 of the electric wire drawing tool 8 and drawn out. Further, an engagement pin 6 that can be engaged with the storage line ring 5 is fixed to the shuttle ring 4. The engagement pin 6 is engaged with the storage line ring 5 when the electric wire is stored in the storage line ring 5. FIG. 6 is a view showing the engagement between the shuttle ring 4 and the storage line ring 5. Reference numeral 5-2 is an engagement hole provided in the storage line ring 5. The engagement pin 6 is movable as indicated by an arrow by a hinge mechanism, and can be engaged with the storage line ring 5. When the electric wire 16 is stored in the electric wire storage groove 5-1, it is engaged as shown in the drawing, and when the electric wire is pulled out (that is, when it is wound around the annular core 9), the engagement is released. . The annular core 9 is supported by the core feed rollers 11 and 12, and is also given a rotational force. The rotational force is transmitted from the core feed roller driving motor 14 as follows. As well shown in FIG. 7, the core feed roller driving motor 14 rotates the idler gear 13 connected by the rotating shaft 15. The idler gear 13 is meshed with the large diameter portions of the two core feed rollers 12 by gears, and rotates the core feed roller 12. Core feed roller 12
The small diameter portion of is pressed against the outer periphery of the annular core 9. On the other hand, the core feeding roller 11 has a small-diameter portion with the annular core
It is only pressed against the outer periphery of the circular core 9, and when the annular core 9 rotates, it is rotated accordingly. That is, it is merely supporting. Therefore, the annular core 9 has a core feed roller 12 on its outer periphery.
By the frictional force given from, for example, it rotates in the direction of the arrow shown in FIG. The stud 10 holds the silicon steel plates, which are the constituent elements of the annular core 9, in a laminated manner, and attaches a printed circuit board (a board on which a circuit for controlling the current of the annular core 9 is mounted) to the annular core 9. It is a member of. Core hole 9-
1 is used when attaching the annular core 9 to a base (not shown) or the like. Next, the operation of the toroidal coil winding machine will be described. (Operation of Storing Electric Wire in Storage Line 5) Before winding the electric wire around the annular core 9, the electric wire is stored in the storage ring 5 as follows. First, as shown in FIG. 6, engage the engagement pin 6 with the engagement hole 5-
Prepare to be able to rotate the accumulator ring 5 by engaging with 2 and rotating the shuttle ring drive motor 1. Next, the tip of the wire is fixed to the storage ring 5. FIG. 8 is a diagram for explaining a method of supplying the tip of an electric wire in a conventional toroidal coil winding machine. Reference numerals correspond to those in FIG. 4, 5A is a wire fixing hole, 16 is an electric wire, 16T is an electric wire tip, 17 is an electric wire feed roller, 18 is a guide roller, and 19 is a bobbin. The dotted circle indicates the bottom of the wire storage groove 5-1. The wire fixing hole 5A is formed in the bottom of the wire storage groove 5-1 of the storage ring 5. The bobbin 19 that supplies the electric wire winds the wire to the storage ring 5 for the required length. First, supply the wire tip 16T from the bobbin 19 to the storage ring 5, and then to the wire fixing hole 5A. Most of the mounting work is done manually. That is, pulling the wire tip 16T from the bobbin 19 and sandwiching it in the wire feed roller 17, or bending the wire tip 16T fed through the wire feed roller 17 and fixing it in the wire fixing hole 5A is done manually. Done. FIG. 9 shows the wire fixing hole 5A. This is a view of the wire storage groove 5-1 of the storage line 5 as seen from the front, and a wire fixing hole 5A is opened at the bottom of the wire storage groove 5-1. The wire tip 16T is bent and hooked here. In this way, the shuttle ring drive motor 1
The electric wire is wound in the direction opposite to that of winding the electric wire around the annular core 9. Then, the shuttle ring 4 rotates in the reverse direction. Since the storage line ring 5 is connected to the shuttle ring 4 by the engagement with the engagement pin 6, the storage line ring 5 rotates together with the shuttle ring 4. This rotation pulls the wire, and the wire storage groove 5-1
It is stored inside. If the length required to wind the annular core 9 is stored,
Stop the shuttle ring drive motor 1, cut the electric wire,
The engagement pin 6 is disengaged. (Winding around the annular core 9) As shown in FIG.
It is pulled out from 1 and fixed to an appropriate position of the annular core 9 (for example, one of the studs 10). This is done manually. The shuttle ring driving motor 1 rotates the shuttle ring 4 while the core feeding roller driving motor 14 rotates the annular core 9. Since the shuttle ring 4 is crossed with the annular core 9, when the shuttle ring 4 makes one revolution (in other words, when the position of the wire drawing tool 8 makes one revolution around the annular core 9), the electric wire is attached to the annular core 9. It is wound once. If the electric wire drawn from the electric wire drawing tool 8 is loose,
The wound electric wire also loosens, and the finish of the toroidal coil deteriorates. Therefore, in order to apply tension to the drawn electric wire, a slip type brake 7 made of cork is pressed against the inner circumference of the storage line ring 5 by a spring 7-1. By making the rotation speed of the annular core 9 and the rotation speed of the shuttle ring 4 constant, a toroidal coil having a uniform winding density can be manufactured. The toroidal coil 20 manufactured in this way is shown in FIG.

[Problems to be solved by the device]

However, in the above-described conventional toroidal coil winding machine, when the electric wire is stored in the storage wire ring 5, the work of supplying the tip of the electric wire to the electric wire fixing hole 5A of the storage wire ring 5 is performed almost by hand. There is. This work must be performed each time a new annular core 9 is wound. Therefore, there is a problem that workability is poor and it is one of the factors that hinder automation. The present invention aims to solve such problems.

[Means for Solving the Problems]

In order to solve the above-mentioned problems, the present invention comprises a shuttle ring and a storage wire ring that intersect with an annular core around which an electric wire is to be wound, and the shuttle ring and the storage wire ring are rotated in the circumferential direction to form the annular ring. In the toroidal coil winding machine of the type in which the electric wire is wound around the core and the winding position is shifted by rotating the annular core in the circumferential direction during winding, while the electric wire is being braked by the electromagnetic clutch. A bobbin that is pulled out, a first electric wire holding roller that is driven by a roller driving motor and has a fixed position, and a second electric wire holding roller that is pressed toward the first electric wire holding roller so that the pressing force can be adjusted. Wire clamping roller, a first sensor for detecting whether an electric wire is present at the entrance of the first and second wire clamping rollers, and the first and second Wire guide body for guiding the electric wire sent out from the electric wire holding roller, a second sensor for detecting that the electric wire passing through the electric wire guide body has advanced to a predetermined position, and advanced to the predetermined position. A press cylinder for pushing the tip of the electric wire into the electric wire fixing hole of the accumulator ring and engaging the electric wire, and a detection signal from the first sensor to command the start of electric wire conveyance, and a detection signal from the second sensor. Therefore, the control circuit for instructing to stop the conveyance of the electric wire and to start the operation of the press cylinder is provided.

[Action]

In the toroidal coil winding machine having the above-described structure, when fixing the electric wire tip 16T to the storage wire ring 5, the electric wire 16
Is set at the entrance of the first and second electric wire holding rollers, and thereafter, it is automatically fed to a predetermined position. That is, when the first sensor detects that the electric wire 16 is set, the conveyance by the electric wire clamping roller is started by a command from the control circuit. When the tip 16T of the wire has advanced to a predetermined position, the second sensor detects this and the conveyance of the wire is stopped by a command from the control circuit. All this is done automatically by the machine, so no more manual work is needed.

【Example】

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram showing a structure for automatically supplying electric wires in the toroidal coil winding machine of the present invention. The reference numerals correspond to those in FIG. Further, 21 is an electromagnetic clutch, 22 is a photoelectric sensor, 23 and 24 are wire holding rollers, 25 is a roller connecting member, 26 is a timing belt, 27 is a cylinder pin, 28 is a cylinder, 29 is a pressure controller, and 30 is a wire guide. Body, 31 is a guide hole, 32 is a roller driving motor, 33
Is a control circuit, 34 is a photoelectric sensor, 35 is a press cylinder,
36 is a cylinder pin and 37 is an idler gear. The electric wire 16 drawn out from the bobbin 19 is conveyed while being pinched by the electric wire clamping rollers 23 and 24. Wire 16
It is supplied to the storage line ring 5 through the guide hole 31 of the wire guide body 30. The wire holding roller 23 on one side is connected by a roller connecting member 25, and the roller connecting member 25 is pressed by a cylinder pin 27 of a cylinder 28. Therefore, the position of the wire holding roller 23 is floating. The wire holding roller 24 on the other side is fixed and has a small diameter portion. Then, they are connected by a timing belt 26 hung on the small diameter portion. One of the wire holding rollers 24 is driven by a roller driving motor 32, and the other wire holding roller 24 is driven via a timing belt 26. The electric wire 16 is conveyed by these drives. The force with which the cylinder pin 27 presses the roller connecting member 25 is adjusted by the thickness of the electric wire 16 or the like. The adjustment is performed by previously inputting data regarding the thickness of the electric wire 16 and the like to the control circuit 33 and controlling the pressure controller 29 by the control circuit 33. The photoelectric sensors 22 and 34 are provided to detect whether or not the electric wire 16 has reached that position. The cylinder pin 36 of the press cylinder 35 is
It is for pushing T into the wire fixing hole 5A for mounting. The electromagnetic clutch 21 is provided to brake the bobbin 19 so that the electric wire 16 does not loosen when the electric wire 16 is pulled out from the bobbin 19. FIG. 3 shows an outline of the electromagnetic clutch 21. 19A is a bobbin shaft, 21A and 21B are clutch plates, 21C is an electromagnetic coil, and 21D is a terminal. The bobbin shaft 19A is fixed to the clutch plate 21A. If the current flowing through the electromagnetic coil 21C is increased, the clutch plate 2
The coupling force between 1B and the clutch plate 21A becomes large, and when the current is made small, the coupling force also becomes small. When the clutch plate 21B is fixed, this coupling force works as a brake for rotating the clutch plate 21A. Therefore, by controlling the current to the electromagnetic coil 21C, it is possible to brake the rotation of the bobbin 19 and prevent the electric wire 16 from loosening. Next, the operation of transporting the electric wire 16 from the bobbin 19 to the position of the electric wire fixing hole 5A and fixing it to the electric wire fixing hole 5A will be described. First, pull out the electric wire 16 from the bobbin 19 by hand, and set it at the entrance of the electric wire holding rollers 23, 24 (this setting work is necessary only when the electric wire 16 is first pulled out from the bobbin 19 as described later. That is). On the other hand, the control circuit 33
Is operated (by a keyboard or the like) to instruct the start of supply of the electric wire 16 to the storage ring 5. The photoelectric sensor 22 detects the presence of the electric wire 16 and sends the detection signal to the control circuit 33. Upon receiving the detection signal, the control circuit 33 issues a drive signal to the roller drive motor 32. As a result, the wire holding roller 24 starts to rotate. At the same time, the control circuit 33 also issues a control signal to the electromagnetic clutch 21 and the pressure controller 29. The electromagnetic clutch 21 applies an appropriate brake to the bobbin 19 that is pulled by the electric wire 16 and rotates to prevent the electric wire 16 from loosening. The pressure controller 29 controls the force with which the cylinder pin 27 presses the roller connecting member 25 so that the electric wire clamping rollers 23, 24 clamp the electric wire 16 appropriately. Thus, the electric wire 16 is pulled out from the bobbin 19 without being loosened and is conveyed to the accumulator ring 5 through the guide hole 31. When the electric wire tip 16T is conveyed to the position of the electric wire fixing hole 5A, the photoelectric sensor 34 detects this and sends a detection signal to the control circuit 33. Then, the control circuit 33 sends a signal to the roller driving motor 32 and the electromagnetic clutch 21 to stop the conveyance of the electric wire 16. The control circuit 33 sends a signal to the press cylinder 35 to cause the cylinder pin 36 to project. The cylinder pin 36 pushes the electric wire tip 16T into the electric wire fixing hole 5A, bends it, and engages the electric wire fixing hole 5A. As is clear from the above, as long as the electric wire 16 is set at the entrance of the electric wire holding rollers 23, 24, the machine will automatically convey it to a predetermined position and attach it to the storage ring 5. Therefore, workability is improved and automation is achieved. In this state, if the storage ring 5 is rotated by the shuttle ring drive motor 1 as described in FIG. 4,
The electric wire 16 is wound around the storage ring 5. Annular core 9
When the wire is wound by a length necessary for winding, the rotation of the storage wire ring 5 is stopped, and the electric wire 16 is cut at the portion protruding from the guide hole 31. When the winding from the storage ring 5 to the certain annular core 9 is completed and the electric wire 16 for the next annular core 9 is wound on the storage ring 5, the electric wire 16 reaches the outlet of the guide hole 31. Since it has already come, it is no longer a wire holding roller 23, 24
The work of setting the electric wire 16 at the entrance of is unnecessary. This work is unnecessary until all the electric wires 16 wound around the bobbin 19 are exhausted, so the workability is greatly improved. In the above example, a photoelectric sensor is used as the sensor,
Other types of sensors may be used as long as the presence of the electric wire 16 can be detected. It is also conceivable to provide a dedicated motor in addition to the shuttle ring driving motor 1 to rotate the power storage ring 5 and rotate the power storage ring 5 via the idler gear 37 from the motor. In that case, the control circuit
Instead of sending a command from 33 to the shuttle ring drive motor 1, it may be sent to the motor. FIG. 2 shows the main configuration of the storage line ring 5 driven by a dedicated motor. The reference numeral corresponds to FIG. 1, 38 is an electromagnetic clutch, and 39 is a storage ring driving motor. The idler gear 37 is meshed with teeth provided on the inner circumference of the storage line ring 5, and is driven by a storage line driving motor 39 via an electromagnetic clutch 38. The control circuit 33 controls the starting and stopping of the storage ring driving motor 39 and the coupling force of the electromagnetic clutch 38.

[Effect of device]

As described above, according to the toroidal coil winding machine of the present invention, when winding the electric wire around the storage ring, the machine automatically performs the work of advancing the tip of the wire from the bobbin to the storage ring. Since the manual work is eliminated, the workability is improved, and at the same time, the one factor that hinders automation is removed.

[Brief description of drawings]

FIG. 1 ... Diagram showing a structure for automatically supplying electric wires in a toroidal coil winding machine of the present invention. FIG. 2 ... Diagram showing a main part structure when a storage ring is driven by a dedicated motor. Figure: Overview of electromagnetic clutch Figure 4: Conventional toroidal coil winding machine Figure 5: View of electric wire drawn from storage ring Figure 6: Engagement of shuttle ring and storage ring Fig. 7 Fig. 7 A view of the toroidal coil winding machine of Fig. 4 seen from the right side Fig. 8 Fig. 9 is a diagram explaining a method of supplying the tip of the electric wire in the conventional toroidal coil winding machine Fig. 9 An electric wire Diagram showing fixing holes Fig. 10 Diagram showing toroidal coil In the diagram, 1 is a shuttle ring drive motor, 2 is a rotation shaft, 3 is an idler gear, 4 is a shuttle ring, 5 is a storage ring, and 5-1 is Wire storage groove, 5-2 is engagement hole, 5A is wire Teiana, the engaging pins 6, 7 slip brake, 7-1
Is a spring, 8 is a wire drawing tool, 8-1 is a wire drawing outlet, 9 is an annular core, 9-1 is a core hole, 10 is a stud, 11 and 12 are core feed rollers, 13 is an idler gear, and 14 is a core feed. Roller drive motor, 15 rotating shaft, 16 electric wire, 16T electric wire tip, 17 electric wire feed roller, 18 guide roller, 19 bobbin, 19A
Is a bobbin shaft, 20 is a toroidal coil, 21 is an electromagnetic clutch, 21A and 21B are clutch plates, 21C is an electromagnetic coil, 21D is a terminal, 22 is a photoelectric sensor, 23 and 24 are wire clamping rollers, 25 is a roller connecting member, 26 is a timing belt, 27 is a cylinder pin, 28 is a cylinder, 29 is a pressure controller, 30 is an electric wire guide body, 31 is a guide hole, 32 is a roller drive motor, and 33 is a motor.
Is a control circuit, 34 is a photoelectric sensor, 35 is a press cylinder,
36 is a cylinder pin, 37 is an idler gear, 38 is an electromagnetic clutch, and 39 is a storage ring drive motor.

Claims (1)

(57) [Scope of utility model registration request] 1. A shuttle ring and a storage wire ring crossing an annular core around which an electric wire is to be wound, and the electric wire is wound around the annular core by rotating the shuttle ring and the storage wire ring in a circumferential direction thereof. In addition, in a toroidal coil winding machine of the type in which the winding position is displaced by rotating the annular core in the circumferential direction during winding, a bobbin from which a wire is drawn out while the brake is applied by an electromagnetic clutch, and a roller. A first electric wire holding roller which is driven by a drive motor and whose position is fixed; and a second electric wire holding roller which is pressed toward the first electric wire holding roller so that the pressing force can be adjusted. A first sensor for detecting whether or not an electric wire is present at the entrance of the first and second electric wire nipping rollers, and the first and second electric wire nipping rollers. An electric wire guide body that guides the electric wire that has been sent out, a second sensor that detects that the electric wire that has passed through the electric wire guide body has advanced to a predetermined position, and a tip of the electric wire that has advanced to the predetermined position is the accumulator. A pressing cylinder to be pushed into and engaged with the wire fixing hole of the wire ring, an instruction to start the transfer of the wire by a detection signal from the first sensor, and a stop of the wire transfer by a detection signal from the second sensor. A toroidal coil winding machine, comprising: a control circuit for instructing start of operation of the press cylinder.