JPS6253930B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a toroidal core winding device.

Several toroidal core winding devices of this type have already been proposed, and an example of the winding device is shown in FIG.

As shown in FIG. 1, the winding device A includes a holding means B for the toroidal core 1, a fixing means C for one end of the wire 2,
The wire rod 2 is provided with a drawing means D for the wire rod 2, a tensioning means E for the wire rod 2, a transfer means F for the wire rod 5, and a gripper G for the wire rod 2. FIG. 1 shows a state in which the drawing means D is drawing out the wire passed through the core hole, and the gripper G receives the wire from the drawing means D directly above the drawing means D, and rotates around the core 1 to core the wire. The wire rod 2 is inserted into the hole, and the drawing means raised to a position close to the core 1 grips the tip of the inserted wire rod and pulls it out again, and this operation is repeated to wind the wire.

However, in this winding device, the gripper G receives the wire from the pull-out means D, rotates around the core, and inserts the wire into the core hole, making the entire device complicated and expensive.

An object of the present invention is to provide a toroidal core winding device that has a simple device configuration and is inexpensive.

In order to achieve the above object, the present invention is characterized in that the wire is wound around the core by rotating the core by 180 degrees while the wire is pulled out from the core hole.

An example of a toroidal core wound according to the present invention is shown in FIG.

The overall configuration of an embodiment of the present invention will be explained with reference to FIG. A workpiece holding means A that holds the core 1 and one end of the wire rod 2 is arranged in the center, a workpiece rotation means B that rotates the workpiece holding means A, a wire rod insertion means C is arranged at a facing position, and a wire rod drawer is arranged below the core 1. It is constructed by arranging means D.

Next, each means will be explained in detail.

As shown in FIG. 4, the core 1 holding portion of the work holding means A has a structure in which a lever 3 is pushed by an air cylinder 2 and the core 1 is sandwiched between it and a support base 4. Rubber 5 is attached to the contact part of lever 3 with core 1.
is adhered to prevent the core 1 from being damaged. The holding part for the wire rod 2 is not shown because it has the same structure as the holding part for the core 1. The workpiece holding means A is coupled to the workpiece rotation means B by a rotational coupling portion 5 .

As shown in FIG. 5, the work rotation means B has a structure in which the work holding means A is supported by a bearing 6 and is rotated via a shaft coupling 9 by driving a motor 8 attached to a support 7.

Next, the wire insertion means C will be explained with reference to FIGS. 6 to 8. FIG. 6 is a plan view of FIG. 3.

The wire insertion means C is supported on the support body 10 by two guide shafts 12 and a feed screw 11,
By rotating the motor 13, it is possible to slide by screw feeding. This motor 13 is a pulse motor or a servo motor with an angle detector.

FIG. 7 is an XY sectional view of FIG. 3. A motor 15 is attached to the rear of the insertion gripper 14, which will be described in detail later, and rotates the insertion gripper 14.

FIG. 8 shows details of the insertion gripper 14. The insertion gripper 14 has a cylinder mechanism inside the housing 16, and has a piston (1) 17 and a piston (2).
18, spring (1) 19, and spring (2) 20 to control its operation. There is a cam 2 at the tip of the piston (1) 17.
1 is fixed to the piston (2) 18, a roller 25 of a finger 24 is swingably attached to the base 22 with a pin 23, and a compressed air hole 26 provided at the rear of the housing 16. has been done. Further, the spring (1) 19 uses a spring having a larger spring constant than the spring (2) 20. Due to the above structure, when compressed air enters from the compressed air hole 26, the spring (2) 20 is compressed first, and the base 22 with the finger 24 attached, the piston (2) 18, and the piston (1) are compressed.
17 moves, and the piston (2) 18 moves into the housing 16.
After the piston (1) 17 compresses the spring (1) 19 and the cam 21 moves forward, the roller 25 is pushed open and the finger 24 is stopped.
closes. Conversely, when compressed air is extracted in this state, the piston (1) 17 and the cam 21 are pushed back by the restoring force of the spring (1) 19, so the finger 24 opens, and then the restoring force of the spring (2) 20 This causes the piston (2) 18, base 22, and finger 24 to retreat. Therefore, the finger 24 moves forward and closes when compressed air is fed into it, and opens and retreats when the compressed air is removed.

Next, the wire drawing means D will be explained. The sliding mechanism of the wire rod drawing means D is exactly the same as the sliding mechanism of the wire rod insertion means C, as shown in FIG. The pull-out gripper 27 also has a mechanism exactly similar to the insertion gripper 14, and when compressed air is sent in, it moves forward and closes, and when the compressed air is removed, it opens and retreats. The only mechanical difference between the wire pulling means D and the wire inserting means is that there is no mechanism for rotating the gripper.

The operation of winding the core shown in FIG. 2 using the toroidal core winding device having the above-described structure will be explained with reference to the operation diagrams shown in FIGS. 9 to 15.

In FIG. 9, one end of the wire 2 is held by the wire holding part 29, the other end of the wire 2 is held by the fingers 24 of the insertion gripper 14, and the wire 2 is inserted into the core hole of the core 1.
The state in which the tip of the holder is about to be inserted is shown. Drive the motor 13 to move the finger 24 to the core 1
As shown in FIG. 10, the tip of the wire 2 is inserted into the core hole.

Next, with the drawing gripper 27 of the wire drawing means D opened and retracted, the core 1 is moved to a position opposite to the insertion gripper 14 by the motor 28, and compressed air is fed into the drawing gripper 14, as shown in FIG. The fingers 24' of the pull-out gripper are advanced to grip the wire in this manner. Next, the compressed air from the insertion gripper is removed and the fingers 24 are opened and retracted.

Thereafter, when the finger 24' of the pull-out gripper 27 is moved in a direction away from the core 1, the wire 2 is pulled out from the core 1 (FIG. 11). Next, the workpiece holding means is rotated by 180 degrees by the workpiece rotation means described above, and the wire rod 2 is wound around the core 1. At this time,
If the center of rotation is appropriately set so as not to cause slack in the wire 2, the wire can be wound tightly around the core, and the wire 2 and the core 1 will not be damaged. It is also possible to move the finger 24' to an appropriate position by controlling the rotation of the motor 28.

Thereafter, as shown in FIG. 12, the insertion gripper 14 is moved and its fingers 24 are advanced to
to grasp. Next, the fingers 24' of the drawer gripper 27 are opened and retreated (FIG. 13).

Next, the insertion gripper 14 is rotated 180 degrees by the motor 15 to direct the tip of the wire 2 toward the core 1. Bring the fingers 24 of the insertion gripper 14 close to the core,
Insert the tip of the wire 2 into the core hole of the core 1 again (FIG. 14). After insertion, the fingers 24' of the pull-out gripper 27, which have been moved to a position opposite to the fingers 24 with respect to the core, grip the wire 2 again, and the same operation as described above in FIG. 10 is performed. Winding is performed by repeating these operations.

As described above, according to the present invention, the core is 180
Since the wire is wound around the core by rotating the wire rod, the structure of the device is simple and an inexpensive device can be provided.

[Brief explanation of the drawing]

FIG. 1 is a partial cross-sectional perspective view of a conventional toroidal core winding device, FIG. 2 is a perspective view of a toroidal core to which the present invention can be applied, and FIG. 3 is a part of a toroidal core winding device of the present invention. 4 is a partial sectional front view of the workpiece holding means, FIG. 5 is a partial sectional front view of the workpiece rotation means, FIG. 6 is a plan view of FIG. 3, and FIG. 7 is a partial sectional front view of the workpiece rotation means. X-Y line sectional view of , No. 8
The figures are full sectional views of the insertion gripper, Figures 9 to 1.
FIG. 5 is an explanatory diagram of the winding operation. 1...Core, 2...Wire rod, A...Work holding means, B
...Work rotating means, C... Wire rod insertion means, D... Wire rod pulling out means.

Claims (1)

[Claims] 1. A holding means for holding one end of the wire and the core;
A core rotating means for half-turning the core to wrap the wire around half a circumference, a wire insertion means for inserting the wire into the core hole by rotating and sliding a first gripper that grips the wire, and a second gripper for gripping the wire. A winding device for a toroidal core, characterized in that it is provided with a wire pulling means for sliding the wire to pull out the wire from the core hole.