JPS5846931B2 - Insulating coating stripping device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an insulating coating stripping device, and more particularly, it is an object of the present invention to provide an apparatus that has a simple structure and can uniformly and reliably strip the insulating coating.

Generally, a coil L used in electrical equipment is made by winding a metal wire 2 made of copper or the like several times with an insulating coating 1 of polyurethane, enamel, etc. on the outer circumferential surface, as shown in FIG. Both ends of the wire 2 have a structure in which the insulation layer 1 is removed so that they can be connected by soldering, so-called terminal processing has been performed, and such a coil L can be inserted into a hole 4 of a printed circuit board 3, for example. Then, the printed pattern 5 and both ends of the coil L are connected and fixed by soldering.

The present invention relates to a stripping device for insulation repeating for terminal treatment of a coil as described above, and the present invention will be explained based on an embodiment in which this stripping device is applied to a winding machine. 1 is a block diagram of a winding machine to which a stripping device according to the invention is applied; A is a stripping device for stripping insulation coating 1 of a metal wire 2 on which insulation coating 1 has been applied, that is, processing the end of a coil L; B is a stripping device for performing insulation coating 1 C is a wire holding device that presses down the metal wire 2 when peeling (terminal treatment); C is a wire feeding device that sends out a certain amount of metal wire 2 in one direction; D is a wire cutting device that cuts the metal wire 2; E is coil L This is a winding device for forming a wire.

FIG. 3 is a simplified explanatory diagram of a winding machine to which the stripping device of the present invention is applied.
rotates, and as a result of this rotation, the cutter 8 mounted on the rotating body T moves toward the center using the pin 9 as a fulcrum against the return spring 25 (see Fig. 4) due to centrifugal force, and the cutter 8 comes into contact with the metal wire 2 inserted through the center hole 10 of the rotating body 1, and the rotating body 7 is moved in a linear direction by a moving member 11 to peel off the insulating layer 1. (Details of the peeling device A will be described later).

Further, in the wire holding device B, the holding member 12 is moved by compressed air or the like to press the metal wire 2 between the fixed base 13 and the holding member 12. Furthermore, the wire feeding device C has a movable body 14 A pressing piece 16 is rotatably attached to the top with a pin 15,
The pressing piece 16 is pressed against the movable body 14 by the spring 17, thereby pinching the metal wire 2, and the movable body 14 is moved in a linear direction by the moving member 18.
The cutter 19 is moved by a cam mechanism or the like to cut the metal wire 2. Furthermore, in the winding device E, the winding member 21 rotates and moves in the axial direction by the driving member 20, winds the metal wire 2 on the winding member 21, and winds the coil L. It is designed to form.

In addition, 22 is a bobbin around which a metal wire 2 coated with an insulating layer 1 is wound, and 23 is a coil storage container.

Furthermore, the detailed configuration of the peeling device A will be explained with reference to FIGS. 4 and 5. On the outer periphery of the rotary body 1, which has a center hole 10 through which the metal wire 2 is inserted, there is a stopper part 2.
A cylindrical stopper member 24 having a hole 4a and a long hole 24b.
Fit the stopper member 24 to the rotating body 7 with the screw 2.
6, and a pair of cutters 8 consisting of blades 8b fixed to a mounting base 8a with screws 8C are rotatably attached to the rotating body 7 by means of pins 9 while facing each other, and return to each pin 9. Wrap the return spring 25 around the return spring 2.
5 is fixed to the head 9a of the pin 9, and the other end is fixed to the mounting base 8m of the cutter 8.
This allows the cutter 8 to open the center hole 1 at the center of the rotating body T.
0, and the mounting base 8a is in a state of engagement with one of the stopper portions 24a of the stopper member 24.

Now, in this state, when the rotating body 7 rotates counterclockwise at high speed, this centrifugal force overcomes the spring force of the return spring 25,
The cutter 8 rotates toward the center of the rotating body γ using the pin 9 as a fulcrum and comes into contact with the metal wire 2, and the mounting base 8a of the cutter 8 is attached to another stopper part 24 of the stopper member 24.
a to prevent further rotation of the cutter 8.

Moreover, by moving the rotary body 7 in a linear direction by the moving member 11 while it is in a rotating state, the insulating layer 1 is prevented from being peeled off.

When the peeling work is completed, the rotation of the rotating body T is stopped by the operation of the control switch, and the centrifugal force is released, so the cutter 8 is directed away from the center of the rotating body 1 by the return bar It rotates and returns to its original position.

Further, the stopper member 24 can be rotated within the range of the elongated hole 24b by loosening the screw 26.
By changing the amount of movement toward 0, it is possible to adapt to the wire diameter of the metal wire 2.

That is, in FIG. 4, when the screw 26 is loosened and the stopper member 24 is rotated clockwise, the stopper part 2
4a also rotates clockwise, and as a result, the cutter 8 moves away from the center hole 10 of the rotating body T, and the movement of the cutter 8 toward the center hole 10 due to centrifugal force becomes shallower, so that the metal wire 2 with a large wire diameter When the stopper member 24 is rotated counterclockwise, the cutter 8 comes closer to the center hole 10 of the rotating body 1, and the cutter 8 moves toward the center hole 10 due to centrifugal force. becomes deep and can be adapted to the metal wire 2 having a small wire diameter.

Furthermore, as is clear from FIG. 4, the blade portion 8 of the cutter 8
b has a plurality of mounting holes 8d, of which two holes 8d
The blade part 8b is attached to the mounting base 8a by inserting the screw 8C, but when the blade part 8b becomes dull, the mounting hole 8d of the blade part 8b must be shifted from the screw 8C. By doing this, the contact position of the blade portion 8b with respect to the metal wire 2 is changed, and one blade portion 8b can be used for a long period of time.

Next, the operation of the above winding machine will be explained with reference to FIG.
First, one end of the metal wire 2 wound around the bobbin 22 is taken out and the winding machine is driven with the wire being connected to the stripping device A1, the wire holding device B1, the wire feeding device C1, the wire cutting device, and the winding device E. , First, the wire holding device B operates to press the metal wire 2.

Next, the peeling device A is driven.

That is, the drive unit 6 of the peeling device A operates to rotate the rotary body γ, whereby the cutter 8 comes into contact with the insulation repeat 1 on the metal wire 2 due to centrifugal force, and in this state, the movable member 11 rotates the rotary body 7. direction away from wire holding device B (direction of arrow X)
, and thereby the insulation repeat 1 on the metal wire 2
The exposed length of the metal wire 2 at the end of the coil L (end treatment length) is determined by the amount of movement of the rotating body 7.

When the peeling work is finished, the rotation of the drive unit 6 is stopped, and
The rotation of the rotating body 7 also stops, the cutter 8 separates from the metal wire 2, and the rotating body 7 and the moving member 11 automatically return to their original positions, and at this time, the wire presser by the wire presser B is released. Ru.

Next, the wire feeding device C operates, and the moving member 18 moves the movable body 14 in the direction of arrow Y to feed out a certain amount of metal wire 2. At the same time, the winding device E starts and the winding member 21 rotates. When the metal wire 2 is wound on the winding member 21 to form the coil L, the wire feeding device C returns to its original position and cuts the wire at the same time. The cutter 19 of the device works to cut the metal wire 2, and finally, when the winding member 21 of the winding device E returns to its original position, the coil L formed on the winding member 21 is removed from the winding member. 21 and fall into the coil storage container 23.

Further, when feeding the wire, the wire feeding device C presses the metal wire 2 against the movable body 14 with the tip of the pressing piece 16 pressed by the spring 17, thereby holding the metal wire 2 between the ends of the metal wire 2. When returning to the original position after wire feeding, the movable body 14 and the pressing piece are moved together with one end of the metal wire 2 wrapped around the winding member 21 of the winding device E. 16 returns, and at this time, the tip of the pressing piece 16 pressed by the spring 17 is no longer hooked on the metal wire 2, and the tip of the pressing piece 16 returns while sliding on the metal wire 2. .

Further, when the metal wire 2 is fed out by the wire feeding device C, the metal wire 2 is pulled out from the first bobbin 22, and then the metal wire 2 in a state of repeated insulation to be peeled is positioned in the stripping device A.

Then, by repeating the above-described operations, the coil L is automatically manufactured.

Further, as shown in FIG. 6, when cutting the wire, the intermediate portion of the exposed portion of the metal wire 2 from which the insulation coating 1 has been peeled off is cut to form the terminal portion of the continuously formed coil L. Therefore, the peeling in the peeling device A is performed such that one of the two coil L terminals is formed at the same time.

That is, according to the present invention, the rotating body 1 is provided with a pair of cutters 8.
The cutter 8 is mounted rotatably by a pin 9 in a facing state, and the return spring 25 always presses the cutter 8 in the direction away from the center of the rotating body 7, so that the centrifugal force due to the rotation of the rotating body 7 is applied to the return spring 25. Since the cutter 8 is rotated toward the center of the rotating body 7 using the pin 9 as a fulcrum by overcoming the spring force, the structure is simple, and the pair of cutters 8 are arranged facing each other. Therefore, metal wire 2
Since each cutter 8 can contact the metal wire 2 with a uniform force by pressing the metal wire 2 from opposite sides, the insulating layer 1 can be peeled off uniformly and reliably.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing the installation of a coil used in electrical equipment, Fig. 2 is a block diagram of a winding machine to which the insulation coating stripping device of the present invention is applied, and Fig. 3 is a cross-sectional view showing the installation of a coil used in electrical equipment. An explanatory diagram of a winding machine to which a stripping device is applied, FIG. 4 is a perspective view of the insulation coating stripping device of the present invention, FIG.
The figure is an explanatory diagram of a line-cut portion. L... Coil, 1... Insulation repetition, 2.
...Metal wire, A...Peeling device, 7...
...Rotating body, 8...Cutter, 9...
... Pin, 10 ... Center hole, 25 ...
Spring for return.

Claims (1)

[Claims] 1 A pair of cutters are rotatably mounted on a rotating body with a pin facing each other, and a return spring constantly presses the cutters in a direction away from the center of the rotating body, so that the centrifugal force caused by the rotation of the rotating body is restored. This is an insulation sheath stripping device in which the cutter overcomes the spring force of the spring and rotates toward the center of the rotating body using a pin as a fulcrum.