JP2594001Y2 - Stripping equipment for coil terminals - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating stripping apparatus for a coil end, and more particularly to an apparatus for stripping an insulating coating at both ends of a coil before and after winding.

[0002]

2. Description of the Related Art As is well known, it is extremely difficult to wind and remove a coil from a former to maintain the shape of the coil. Particularly in the case of a deflection coil or the like, an extremely complicated shape is formed so as to form a saddle shape composed of two semicircular arc portions and two linear portions connecting the arc portions. Therefore, it is particularly difficult to maintain the shape after winding. For this reason, current is applied from both ends of the coil end after winding to soften a coating such as an enamel that covers the wire, and the coatings are fused together, and then the current is cut off to cool and solidify the coil. I have.

[0003] As described above, since it is necessary to apply a current from both ends of the coil terminal, the coating on both ends must be peeled off. As a means for peeling off the coating, the wire is pressed from both sides by a heated heater. The simplest method is to cauterize and peel off the coating. Conventionally, various methods have been used for heating the heater. However, recently, a low voltage (for example, about 1 to 2 V) and a large current (about 1000 A) of an alternating current are passed through the heater to raise the heater temperature at a stretch. It has been proposed to peel in a short time of about 2 to 3 seconds.

However, the heating device according to this proposal has a drawback that it is extremely unstable, for example, the temperature rise time of the heater is affected by the external environment because the heater temperature is raised at once by a large current. . In addition, the power supply device becomes large-scale in order to obtain a large current, and there is also an inconvenience that a large amount of space is required. In addition, a proposal has been made to incorporate a heater inside a pressure member for pressing the wire, heat the pressure member, and remove the coating.

However, in this proposal, since the heat generated by the heater indirectly heats the wire by the heated pressing member, when the wire is heated, the pressing member is cooled and the next wire is cooled. However, there is an inconvenience that the time required for the pressing member itself to rise to a sufficient temperature before heating is prolonged. In order to cope with this point, for example, there is a disadvantage that durability is difficult when a heater having a large amount of heat is used or a pressing member is configured to have a small heat capacity.

[0006]

SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks of the prior art, the present invention heats a heater by an AC power supply and pressurizes the wire while heating the wire with the heater. In addition, the heating power supply device is not large, and a current is directly applied to the wire pressing member to generate heat so that the wire pressing member is used as a heater, and the next wire is heated after the wire is heated. The present invention provides an apparatus for peeling off a film at a coil end portion, which is capable of generating heat in a short period of time.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems of the prior art, the present invention provides a set of actuating members which are relatively close to and spaced from each other, and a pair of actuating members, respectively. A set of conductors that are integrally formed with the conductor, and a lead wire that is connected to each of the set of conductors provided in each of the set of operating bodies, and that is connected between the set of conductors; A heater that operates close to and away from the actuator together with the operating member, and when the heater operates close to, conducts electric current from the conductive wire to the heater through a conductor to cause the heater to generate heat, thereby heating a wire held between the heaters. It is an object of the present invention to provide a coil terminal film peeling device characterized in that the film is peeled off.

[0008]

According to the present invention, the use of an AC power supply eliminates the need for a large-scale device, stably heats a wire, and reduces the time from the first heating step to the next heating step. Since the target interval can be stabilized and is not affected by an external environment, that is, cold or hot, it is possible to obtain a coating stripping device for a coil terminal suitable for mass production.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 1 is a front view of an embodiment showing a main part of the present invention,
FIG. 2 is a left side view thereof. In FIG. 1, a base 1 has substrates 1a and 1b integrally mounted on the upper and lower sides, has a guide 1c along the vertical direction, and has an adjustment plate 1d fixedly mounted parallel to the substrates 1a and 1b. The substrates 1a and 1b are provided with stoppers 2a and 2b, respectively, and the adjustment plate 1d is provided with stoppers 2c and 2d.

Cylinders 3 and 3 driven by a fluid such as air are mounted on the substrates 1a and 1b. Pistons 3a and 4a of the cylinders 3 and 4 are formed of an electrically insulating material. Operating bodies 5 and 6 are fixed. The operating bodies 5 and 6 have sliding portions 5a and 6a that slide along the guide 1c. The operating body 5,
On the other side of the slide portions 5a, 6a of FIG.
9 and 10 are fixed, and the conductors 7 and 8 and the conductors 9 and 10 are fixed.
Are connected to each other by plate-like heating elements 11 and 12 made of, for example, nickel chrome. A conductor 13 is connected to the conductor 7, and the conductors 8 to 1 are similarly connected.
Conductors 14 to 16 are connected to 0. L is a wire for coil winding.

In the above configuration, when winding a coil (not shown) is started, first, the wire L is supplied from a wire supply unit (not shown) to a winding mechanism along the longitudinal direction of the wire L shown in FIG. Sent. And the wire L is the heating element 11,
When it reaches the portion corresponding to the terminal of the coil between 12, the feeding operation of the wire L is temporarily stopped. Next, the cylinders 3 and 4 are simultaneously operated by the operation of a control circuit (not shown), and the pistons 3a and 4a are extended until the operating bodies 5 and 6 are restrained by the stoppers 2c and 2d. When the operating bodies 5, 6 are restrained by the stoppers 2c, 2d, the operating bodies 5, 6
Presses the wire L with a predetermined pressure by the heating elements 11 and 12, and simultaneously applies a predetermined value (for example, about 1 to 2V, about 500A) to the conductors 13 to 16 by a control circuit (not shown).
Is applied for about 10 seconds to cause the heating elements 11 and 12 to generate heat (about 4 to 500 ° C.).

The wire L pressed and heated by the heating elements 11 and 12 is cauterized with a coating such as an enamel covering the surface, and the copper ingot is exposed. After pressing the wire L for a predetermined time, the cylinders 3 and 4 retract the pistons 3a and 4a until the operating bodies 5 and 6 are restrained by the stoppers 2a and 2b.
The alternating current between 14, 15 and 16 is cut off by a control circuit (not shown), and the heating of the heating elements 11 and 12 is stopped. When the pressing of the wire L by the heating elements 11 and 12 is released, the feeding of the wire L is restarted, and the coil winding operation is started.

When the winding of the coil is completed, the feeding of the wire L is temporarily stopped, and the heating operation of the wire L is performed in the same manner as described above. Since the coating of the wire L is peeled off by a length corresponding to the width of the heating elements 11 and 12 shown in FIG. 2, the center of the peeled wire L reaches the blade portion of the cutter (not shown). The wire L is fed up to this point, where it is temporarily stopped and the wire L is cut. The front part in the feeding direction of the cut wire L is a peeled part at the end of the winding end part of the already wound coil, and the rear part is also a peeled part at the winding start part of the coil to be wound. Become.

Thereafter, the same operation is repeated, but after the coil is wound and the peeled portion is cut, terminals (not shown) are brought into contact with the peeled portions at both ends of the coil to soften the coil coating. A predetermined value of current.
The current-carrying coil generates heat, softens the coating, and bonds the wires together. Thereafter, when the current is cut off, the coil is cooled, and the softened film solidifies while being adhered to each other.
Integrate the coil. Therefore, even if the coil after winding is removed from the winding form, the coil does not lose its shape, and a coil maintaining a predetermined performance can be obtained.

[0015]

According to the present invention as described above, when peeling off the coating of the end of the wound coil, the flat heating element presses from both ends and heats up rapidly, so there is no time for the metal to be oxidized. The film can be promptly peeled off. Also, according to the present invention, it is possible to process with an extremely easily obtainable electric power of about 50 to 60 Hz and about 100 V by alternating current, and since the heating element is a constant member, the heating temperature also varies with the thickness of the wire to be peeled and other factors. Irrespective of the conditions, it is always constant and a stable peeling action can be obtained.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a left side view of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base 1a-1b Substrate 1c Guide 1d Adjustment plate 2a-2d Stopper 3-4 Cylinder 3a-4a Piston 7-10 Conductor 11-12 Heater 13-16 Conductor L Wire

Claims (1)

(57) [Scope of request for utility model registration] A pair of actuating members that are relatively close to and spaced apart from each other; a pair of conductors integrally formed with each of the pair of actuating members; A conductor connected to each of a pair of conductors provided in each of the conductors, and a conductor connected between the pair of conductors,
When the heater is operated in proximity, a current is conducted from the conductor to the heater through a conductor to heat the heater, and the wire sandwiched between the heaters is heated to peel off the coating. A coating stripping device for a coil terminal.