JPH0284006A - Coating remover - Google Patents

Abstract

PURPOSE:To improve the accuracy of removing length of coating by providing a drive section for applying feeding operation onto a brush and a mechanism for adjusting the feeding length of the brush. CONSTITUTION:When a left brush 1 is rotating, the rod 23a of a cylinder 23 is advanced. Consequently, the left side brush 1 performs feeding operation in the direction A while rotating. Feeding operation in the direction A finishes when a moving stopper 21a collides against a fixed stopper 21a. When the rod 23a of the cylinder 23 retreats, feeding operation in the direction B is started. Feeding operation in the direction B finishes when the brush 1 returns to the original position. Consequently, the coating is removed corresponding to the moving length of the brush 1. By such arrangement, the removing length can set accurately and selected freely.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a device for removing the coating from a flat covered electric wire used in a field coil of an electric motor or the like.

[Conventional technology]

FIG. 2 is a side view of a tool in which a brush is attached to an air motor, as shown in a commercial product catalog, for example.

In the figure, 1 is a brush, 2 is an air motor to which brush 1 is attached, 3 is a washer, 4 is a nut that fixes the brush,
5 is a covered electric wire.

Next, the operation will be explained. As the rotating shaft of the air motor 2 rotates, the brush 1 attached to the rotating shaft rotates. The rotating air motor is held in the hand, the rotating brush 1 is pressed against the covered electric wire 5, and the covering of the covered electric wire 5 is removed by moving it in the longitudinal direction of the covered electric wire 5. This operation is performed for each of the covered wires 5 four times.

[Problem to be solved by the invention]

In conventional coating removal equipment and work, the operator held an air motor in his hand and removed the coating by moving the air motor, which resulted in poor accuracy in the coating removal length.
Furthermore, since the coating is removed one by one from the four surfaces to be removed, there is a problem in that the work takes a long time.

This invention was made to solve the above-mentioned problems. By accurately determining the amount of movement of the brush, the accuracy of the coating removal length is improved, and the coating can be removed from all four sides at once. The purpose is to obtain a device that can perform the following steps.

[Means to solve the problem]

The coating removal device according to the present invention includes a drive unit for moving a brush for removing the coating, a stopper for making the amount of movement of the brush constant, and a stopper for adjusting the amount of movement of the brush. It is designed so that it can be moved.

Furthermore, by arranging four brushes each equipped with an air motor, one on each side of the covered wire, the covering can be removed at one time.

[Effect]

This one! ! - The coating removal device at the gate is operated by a drive unit.
The obtained thrust causes the brush to reciprocate, and by providing a stopper at the end of the stroke, the amount of brush movement is kept constant. Also, by changing the position of this stopper, the amount of movement of the brush can be adjusted.

[Actual IM example] An embodiment of the present invention will be described below.

In FIG. 1, reference numeral 1 denotes brushes provided corresponding to the four sides of the covered electric wire 5, 2 an air motor for rotating the brush 1, 9 a mounting base holding the air motor 2, and 10
1 is a slide guide that guides the movement of the mounting base 9; 6 is a coil spring that applies a pressing force to the brush 1; 11 is a cylinder that separates the brush 1; 12 is a support base that supports the cylinder 11; 13 and 14 are the brush rotation units. 15 is a screw shaft for connecting frames 13 and 14; 18 is a spur gear fixed to spring screw #115; 17 is a spur gear meshing with spur gear 16; 18;
is the screw shaft fixing the spur gear 17, and 19 is the screw shaft Is.
, a support plate supporting 1g, 20 is a screw shaft 15
A handle wheel fixed to the mount to provide rotational force, 21m,
21b is a movable stopper that engages with the thread of the screw shaft 18; 22 is a fixed stopper that is paired with the movable stoppers 21a and 21b; 23 is a cylinder for feeding the above portion; 23 is a rod thereof; 24 is fixed stopper 22. This is the base to which the cylinder 23 is fixed.

In the coating removal device configured as described above, if the left brush 1 is rotating, the cylinder 23
The rod 23m is advanced. Then, the left brush 1 rotates and feeds in the incoming direction. The feeding operation in the inward direction ends when the movable stopper 21a collides with the fixed stopper 22. Next, when the rod 23m of the cylinder 23 retreats, the feeding operation in the B direction is started. brush 1
When it returns to its initial position, the feeding operation in the B direction ends. This removes the coating of the displaced length of the brush 1. Do the same thing with the brush on the right.

Next, when the handle wheel 20 is rotated clockwise, the screw shaft 15 is rotated clockwise. The threaded shaft 15 is provided with a left-handed thread in the portion that engages with the frame 13, and a right-handed thread in the portion that engages with the frame 14. As the screw shaft 15 rotates clockwise, the frame 13 moves in the B direction and the frame 14 moves in the entry direction. The spur gear 1B fixed to the screw shaft 15 also rotates clockwise as the screw shaft 15 rotates. The spur gear 17 meshing with the spur gear 16 rotates in the opposite direction to the spur gear 16. Screw shaft 18 fixing spur gear 17
rotates to the left. A moving stopper 21a is attached to the screw shaft 18.
The part that engages with the moving frame 21b has a left-handed thread, and the part that engages with the moving stopper 21b has a right-handed thread.
1a moves in the incoming direction, and the moving frame 21b moves in the B direction. This shortens the distance to the fixed stopper and shortens the travel stroke.

In the above embodiment, a case is shown in which a cylinder is used as the driving source, but similar effects can be expected with a drive device using a screw or a rack and pinion.

〔Effect of the invention〕

As described above, according to the present invention, the covering removal length can be determined accurately, and the covering removal length can be arbitrarily selected.

Further, since the coating can be removed in one step, there is an effect that the working time can be shortened.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing a coating removal device according to an embodiment of the present invention, and FIG. 2 is a side view showing a tool used in conventional coating removal work. In the figure, 1 is a brush, 2 is an air motor, 5 is a coated Ti wire, 9 is a mounting base, 13.14 is a frame, 15j8 is a screw shaft, 18.17 is a spur gear, 19 is a support plate, and 20 is a handle wheel. , 211.21b is a moving stopper, 22 is a fixed stopper, and 23 is a cylinder. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] A sheathing removal device that removes sheathing by press-contacting a rotating brush against a coated wire, comprising a drive section that feeds the brush, and the feed drive section has a mechanism for adjusting the length of brush feeding. coating removal equipment.