JPH01154508A - Winding equipment - Google Patents

Abstract

PURPOSE:To wind a wire around a core with a small inner diameter without damaging the wire, by constituting a winding equipment which is used in the case of forming a toroidal coil and the like, of a pair of arms whose one end is beared in a rotative manner on the horizontal plane, a pressure pulley, a belt, and a drum pinching and pulling a wire material wound around a ringlike core. CONSTITUTION:A driving belt is suspended crosswise from a motor 15 to two shafts 12, 12' to rotate the shafts 12, 12' in the inverse direction with each other, A bearing 13 to retain one rotary shaft, e.g., the shaft 12, swings while a certain point acts as a supporting point 16. The bearing 13 and the the shaft 12 are retained by a compression coil spring 14, and arranged so as to push a rotary drum 8 fixed to the shaft 12, 12' with each other. When the wire 10 is pulled in, frictional force operates between the wire 10 and the drum 8, and the distance between the drums 8, 8 expands as far as the frictional force and a passing force of the coil spring 14 are balanced. By rotating a core 6 while a driving pulley 5 is being inched, and supplying a tip of the wire 10 to a hole of the core 6, wiring with a specified tension is enabled.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a winding device used, for example, in manufacturing toroidal coils, in particular, a wire rod can be wound around a ring-shaped core through a hole in the core. It relates to a winding device.

[Conventional technology]

Conventionally, there is a shuttle type toroidal winding machine that winds a winding material around a ring-shaped core.

In this method, a ring-shaped shuttle is passed through the hole in the core, and the winding material is stored in the shuttle.

Rotate the shuttle in synchronization with the rotation of the core.

This involves applying tension to the winding material and pulling it out from the shuttle while winding it.

[Problem that the invention seeks to solve]

Conventional winding machines such as those described above apply tension to the wire, so the shuttle must have some degree of rigidity. Therefore, the length of the wire that can be wound is determined by the size of the hole in the ring-shaped core that can be wound automatically and the wire storage capacity of the shuttle. A core with a small inner diameter not only makes it difficult to wind the wire twice, but the smaller the core inner diameter, the more likely contact between the shuttle and the wire wound around the core occurs, resulting in poor quality.

SUMMARY OF THE INVENTION In view of these problems, it is an object of the present invention to provide a winding device that does not have the above problems and can be manufactured at low cost even if the inner diameter of the ring core is small.

[Failure to solve the problem]

According to the present invention, in a winding device for winding a ring-shaped core, a pair of arms are rotatably supported at one end on a horizontal plane, and the other end of each arm is perpendicular to the other end of the arm. a pressure pulley rotatable around an axis; a drive pulley rotatable around a vertical axis; A belt that holds the ring-shaped core by having the outer surface of the portion between the pressure pulleys contact the circumference of the ring-shaped core over one circumference; It includes a pair of drums, one rotating in a clockwise direction and the other rotating around a horizontal axis in a counterclockwise direction, and the pair of drums clamp and pull a wire rod wound around a ring-shaped core. A winding device is obtained.

[Effect]

A core holding mechanism consisting of three pulleys with rubber belts clamps the ring core and allows the core to be fed by a fixed length without slipping. Then, a pair of drums are arranged horizontally on the left and right and their outer peripheral surfaces touch each other directly below the held ring core, and the left drum is always rotated clockwise and the right drum is rotated counterclockwise. . Then, pass the tip of the wire wrapped around the core 1 [13 times, then 2 times] through the hole in the core, and insert it while it is in contact with the rotating drum directly below. Apply tension to the winding. When the tension exceeds a certain level, the drum that was in contact opens and the two windings are turned into IJ-, allowing the wire to be wound to be taken out. Then, line up the wires on the outer circumferential surface of the core.

Moreover, tension can be applied by inserting a wire rod into the inner periphery of the core. In this way, eight windings are applied to the core while feeding the core by a fixed length.

〔Example〕

Embodiments of the present invention will be described with reference to the drawings.

First, referring to FIG. 1, the core holding mechanism is provided on a table 1, and includes two pressure pulleys 4 provided at the other end of an arm 3 that rotates as a shaft 2 rotates, and a drive pulley 5 on the table. It is configured so that an endless belt can be wrapped around it and the core can be clamped so as to be surrounded by the belt 7. The arms 3 elastically hold the ring core 6 under the spring pressure of a spring (not shown). This eliminates slippage when the core 6 is rotated, and allows smooth engagement of the initial winding portion.

A pair of rotating drums 8 whose outer peripheries touch each other are arranged below the center of the sandwiched ring core 6 so as to be driven and rotated on a table. The two rotation planes of these drums 8 lie on a perpendicular line, and they rotate relative to each other in the directions indicated by the arrows in the figure. here.

The wire 10 passed through the hole 9 of the core 6 is caught as it is and pulled downward. wire 10
When the drums 8, 8 come into close contact with the core 6 and are no longer pulled, the drums 8, 8 are opened like a torque limiter, and the shear wire 10 can be pulled out.

As shown in Fig. 2, the operating mechanism of these drums is that a motor 15 has two shafts 12 and 1.2', and five drive healds 11 are threaded across each other, and the shafts 12 and 12' are oriented in opposite directions. It is designed to rotate. Also, a bearing 1 that supports one rotating shaft (for example, 12) with a certain point as a fulcrum 16
3 swings (that is, moves toward and away from the other rotating shaft 12'). The bearing 13 and the shaft 12 are supported by a compression coil spring 14, and are arranged so as to push the rotating drums 8 attached to the shafts 12 and 12' toward each other. As a result.

When the wire 10 is drawn in as shown in FIG.

Frictional force acts between the wire 10 and the drum 8, and the drums 8, 8 are moved until the frictional force balances the pushing force of the coil spring 14.
There will be a gap.

In such a mechanism, a foot switch and.

By using a combination of a timer and a timer (both not shown), while driving the driving pulley 5, the core 6 is rotated and the tip of the wire 10 is fed into the hole 9 of the core 6 by two people. It is possible to wind the wire under tension.

〔Effect of the invention〕

With the winding device of the present invention, it is possible to wind two wires on a core with a small inner diameter, which could not be wound using the shuttle method, without damaging the wire. Furthermore, this device is simple to operate and can be used to wind wires around the core at low cost.

[Brief explanation of the drawing]

Figure 1 is an external perspective view of one embodiment of the present invention, and Figure 2 is
FIG. 3 is a partial overhead view showing a drum drive mechanism. 3... Arm, 4... Pressure pulley, 5... Drive pulley, 6... Ring-shaped core, 7... Belt,
8... Drum, 9... Hole, 10... Wire rod.

Claims (2)

[Claims] (1) In a winding device that winds a ring-shaped core,
a pair of arms rotatably supported at one end on a horizontal plane; a pressure pulley rotatably rotatable around a vertical axis at the other end of each of the pair of arms; a drive pulley that rotates around the drive pulley;
a belt extending between a pair of pressure pulleys and holding the ring-shaped core by having an outer surface of a portion between the pair of pressure pulleys contacting the circumference of the ring-shaped core over one circumference; a pair of drums arranged under the ring-shaped core and rotating around horizontal axes, one in a clockwise direction and the other in a counterclockwise direction with their outer peripheries in contact with each other; , a wire winding device characterized in that it clamps and pulls a wire rod wound around a ring-shaped core. (2) The pair of drums releases the clamping of the wire rod and releases the wire rod when the tensile torque of the wire rod exceeds a predetermined value.
) The winding device described in item 2.