JPH0143437B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for manufacturing a sliding brush material.

In recent years, with the development of electrical equipment, a high degree of reliability is required for the contact parts, and micro motors,
In order to increase the reliability of the sliding brushes used in potentiometers and many others, the contact is stabilized by making the sliding brushes with multiple wire bundles, i.e., point or surface contact, multi-point contact. A brush that enhances sex is being considered.

However, in order to make such a brush, several steps are required.
Since 3 to several dozen ultra-fine wires of 10μ have to be welded to the base material, productivity is extremely low when welding them one by one, and when welding many wires at once, it is difficult to weld parts. If the welded part is not welded properly or the welded part melts too much, it may fall off or break, especially if the ultra-fine wire is shaped after welding.

In order to solve this problem, the present invention arranges a large number of ultra-fine wires horizontally and at regular intervals, and connects the ultra-fine wires arranged at regular intervals to a guide plate having stepped grooves at equal intervals to the ultra-fine wire intervals. The present invention aims to provide a method and an apparatus for manufacturing a sliding brush material by sequentially moving the electrodes in a direction perpendicular to the supply direction of ultra-fine wires and welding them one by one to a base material.

Embodiments of the present invention will be described below based on the drawings.
First, an apparatus for carrying out the method of manufacturing a sliding brush material according to the present invention will be explained with reference to FIGS. , in this example, a large number of them are pivotally mounted on one reel shaft 2. 3 is a primary gathering device that reduces the entire width of a large number of ultra-fine wires W fed out from each reel 1, and 4 is a large number of ultra-fine wires W whose width is reduced.
5 is a secondary gathering device that further reduces the overall width of a large number of ultra-fine wires W, and 6 is a secondary gathering device that reduces the overall width of a large number of ultra-fine wires W that have passed through the gathering device 5 while preventing the multiple ultra-fine wires W from overlapping. It is an alignment device for adjusting the final width, and 7 is a transport guide for each ultra-fine wire W aligned at regular intervals.

On the other hand, in the perpendicular direction of the ultra-fine wire aligning and supplying device 8 constituted by the reels 1 to the transfer guide 7, a base material B is placed at the position of the aligned ultra-fine wire W exiting the transfer guide 7.
A material feeding device 9 is provided that feeds the material intermittently,
A welding device 10 for welding the aligned ultra-fine wires W to the base material B is provided in the vertical direction in front of the base material feeding station 9. Reference numeral 11 denotes a guide for transporting a sliding brush material P obtained by welding aligned ultra-fine wires W to a base material B. The welding device 10 includes a lower electrode 10a, an upper electrode 10b, and a pressing spring body 10c on one side perpendicular to the engagement direction of the ultrafine wire W of the electrode 10b, that is, on the workpiece feed side, and on the other side in a stepped shape. It is linked to a rotation guide plate 10e having a groove 10d.

Next, a method of manufacturing a sliding brush material using the manufacturing apparatus of the present invention configured as described above will be explained. As shown in FIGS. 1 to 3, a large number of ultra-fine wires W are unwound from each reel 1 which is pivotally attached to one reel shaft 2, and are transferred to a primary collecting device 3, where each ultra-fine wire is The distance between the lines W is narrowed,
The overall width dimension is reduced to about 1/4. A large number of ultra-fine wires W coming out of the collecting device 3 are sent to an alignment device 4, where the intervals between the ultra-fine wires W are adjusted and overlapping is prevented. Then, a large number of aligned ultra-fine wires W are sent to a secondary gathering device 5, where the ultra-fine wires W
The overall width dimension is reduced to near the required final width dimension. When the number of ultra-fine wires W is small,
These devices can be omitted. Next, a large number of ultra-fine wires W are sent to an alignment device 6, where the ultra-fine wires W are prevented from overlapping each other and are aligned to a desired final width. A large number of the aligned ultra-fine wires W are intermittently sent out successively by a predetermined length along the transfer guide 7. Next, on the lower side (in some cases, the upper side) of the aligned ultra-fine wires W that have been transferred from the transfer guide 7 and temporarily stopped, a single piece of material B having the required width is placed by the material feeding device 9 from the right angle direction. In the case of a long object, it is manually fed forward, and in the case of a long object, it is mechanically fed forward and set on the lower electrode 10a of the welding device 10. Next, the upper electrode 10b is lowered to weld the first end of the aligned ultra-fine wire W to the base material B, and then the rotation guide plate 10e
Rotate it slightly and advance it to the first stepped groove 10d, which is equally spaced with the spacing between the ultra-fine wires, and perform the second weld.
The sliding brush material P is obtained by rotating sequentially and welding up to the final piece. When the upper electrode 10b rises after welding, the aligned ultra-fine wires W are again transferred by a predetermined length from the transfer guide 7 and paused, and accordingly, the sliding brush material P is also transferred by a predetermined length along the transfer guide 11. The aligned ultra-fine wires W, which have been fed out and temporarily stopped, are welded to the base material B as described above, and thereafter, the above-described operations are repeated to sequentially manufacture sliding brush materials P intermittently.

In the above embodiment, the base material B cut into a certain length in advance is fed to the position below the aligned ultra-fine wire W, but the strip-shaped base material is intermittently fed to the position below the aligned ultra-fine wire W by a certain length. Alternatively, after being fed to the lower position and welded, the aligned ultra-fine wires may be cut to a required length.

Further, when welding is performed by moving the lower electrode, the aligned ultra-fine wires W and the base material B may also be moved together.

Further, the cross-sectional shape of the ultra-fine wire W may be any shape such as circular or square.

However, when manufacturing a sliding brush from the long sliding brush material manufactured as described above, a large number of continuous ultra-fine wires W are sequentially cut at the edge of each base material B and welded to each base material B. A large number of ultra-fine wires W are processed into a desired shape, or a large number of continuous ultra-fine wires W are processed into a desired shape between each base material B, and then the ultra-fine wires W are processed into a desired shape between each base material B. It is best to cut sequentially along the edges.

As described in detail above, the method for manufacturing the sliding brush material of the present invention involves transporting and gathering a large number of ultra-fine wires and arranging them horizontally, while intermittently inserting a base material from a direction perpendicular to the many ultra-fine wires that have been aligned. Because the welding is performed by sequentially feeding ultra-fine wires,
The sliding brush material can be manufactured extremely efficiently, and the sliding brush material can then be made into a sliding brush by simply cutting, processing, or processing and cutting ultra-fine wires. There are many things that contribute to improving sexuality.

In addition, since a large number of horizontally aligned ultra-fine wires are sequentially welded to the base material one by one, there is no problem of only partial welding or excessive melting of the welded parts as in conventional methods. When the aligned ultra-fine wires are cut or molded to make a sliding brush, the ultra-fine wires do not fall off or break.

Furthermore, the sliding brush material manufacturing apparatus of the present invention includes:
Since the above manufacturing method can be carried out reliably and quickly, the manufacturing efficiency of the sliding brush material is improved, and since the structure is extremely simple, it can be manufactured at low cost and is easy to operate.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an embodiment of the sliding brush material manufacturing apparatus according to the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a perspective view of a guide plate in the welding apparatus of the present invention. . 1... Reel, 2... Reel axis, 3... Primary gathering device, 4... Aligning device, 5... Secondary gathering device,
6... alignment device, 7... transfer guide, 8... alignment supply device, 9... workpiece feeding device, 10... welding device, 10a... lower electrode, 10b... upper electrode,
10c... Spring body, 10d... Step groove, 10e
...Guidance board, 11...Transfer guide, W...Superfine wire, B...Base material, P...Sliding brush material.

Claims (1)

[Claims] 1. A plurality of ultra-fine wires are transported and assembled, and then arranged horizontally at regular intervals, while a base material is intermittently fed to the ultra-fine wires arranged at regular intervals. , in a method of manufacturing a sliding brush in which the ultra-fine wires are welded one by one to the base material, the welding electrode is fixed at right angles to the supply direction of the ultra-fine wires by a guide plate having stepped grooves at equal intervals to the ultra-fine wire intervals. A method of manufacturing a sliding brush material, characterized in that the ultrafine wires are welded one by one by moving sequentially in a direction. 2. An ultra-fine wire alignment and supply device that gradually collects ultra-fine wires fed out from a plurality of reels during transfer and then aligns and supplies the assembled ultra-fine wires horizontally and at regular intervals; and the ultra-fine wire alignment and supply device. A material feeding device that intermittently feeds a material from a perpendicular direction to the position of the aligned ultra-fine wire that has been supplied from the source and paused, and a material feeding device that intermittently feeds the material from the perpendicular direction to the position of the aligned ultra-fine wire, and welds the material fed to the aligned ultra-fine wire position to the aligned ultra-fine wire. In a manufacturing device for a sliding brush material, the welding device includes upper and lower electrodes for welding the aligned ultra-fine wires, and one of the upper and lower electrodes on the side perpendicular to the supply direction of the aligned ultra-fine wires. A manufacturing device for a sliding brush material, comprising an electrode moving device having a pressing spring on one side and an electrode moving device interlocking with a rotatable guide plate having step-like grooves at equal intervals to the aligned ultra-fine wire intervals on the other side.