JPS6246675B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention arranges a plurality of rollers in an annular shape, allows each roller to rotate normally (rotates on its own axis), and also allows all rollers to rotate synchronously (revolution) around a single axis. The present invention relates to a self-revolving guide roller.

For example, when producing thick stranded wires such as cables from strands, the stranded wires rotate while rotating with some undulations, but in skip-type stranding machines, double twist bunchers, etc. Conventional guide rollers work to reduce frictional resistance in the direction of travel of the stranded wire when the wire is curved, but they do not work to reduce frictional resistance at all in the direction of rotation of the stranded wire. As a result, the stranded wire tends to untwist due to the frictional resistance, and as a result, the product has the disadvantage that it tends to be a loosely twisted stranded wire. The present invention provides a guide roller that eliminates these drawbacks.

The following will explain using exemplary diagrams.

As shown in the drawings, the present invention is such that a plurality of rollers 1 are arranged in a ring using an integral roller receiver 2, and the roller receiver 2 can be rotated about a central axis 3 of the roller ring as a rotation axis. It is characterized by

The most desirable shape of the ring formed by the plurality of rollers 1 is to form the working surface 4 of each roller 1 into an arc shape,
The ring enclosed by the working surface 4 forms a circle.

A tubular bracket 5 that shares the roller ring and the center shaft 3 is attached to the roller receiver 2, and the bracket is rotatably supported by a support plate 7 via a bearing 6. By this method, the roller receiver 2 becomes rotatable around the central axis 3 of the roller ring, and the guide roller of the present invention is supported by the support plate 7.

Further, in the present invention, the tubular bracket 5 is not configured to be rotated by a driving force from another source such as a separately provided drive shaft. The rotation of the tubular bracket 5, roller receiver 2 and roller ring is therefore a passive rotation caused only by the rotation of the stranded wire 8 passing through the roller ring.

With the above configuration, each roller 1 can rotate freely like a normal roller, and at the same time can rotate as a whole around the center axis 3 of the ring (most preferably a circle). That is, each roller 1 can rotate, and
All rollers can revolve around a single axis synchronously.

For example, when the guide roller of the present invention is used for a curved course of twisted wires in the process of manufacturing cables from strands, the support plate 7 is curved according to the degree of curvature of the course, and the guide roller of the present invention is attached to the support plate. It is used by attaching several or many rollers.

In this case, the stranded wire 8 moves while rotating with some waviness, but the frictional resistance of the stranded wire 8 in the traveling direction is significantly reduced by the normal rotation (rotation in the term of the present invention) of each roller 1. , the frictional resistance in the rotational direction of the stranded wire 8 is significantly reduced by the rotation of each roller 1 around the central axis 3 (revolution in the present invention), so the stranded wire 8 is It does not create the action of trying to untwist like in the past,
You can smoothly navigate a curved path. Therefore, by using the guide roller of the present invention, a well-tight stranded wire without loose twist can be obtained.

If the ring formed by the active surface 4 of each roller 1 is circular, any part of each roller 1 will act in the same way on the rotating strand 8, so that the strand 8
In addition, no matter which part of each roller 1 the stranded wire 8 acts on, the entire roller will smoothly rotate to the center axis in the same way, adapting to the rotation of the stranded wire 8. 3, the rotational frictional resistance of the stranded wire can be reduced most ideally.

An example of using a revolving guide roller as a guide roller for a stranded wire that moves while rotating is the 51st year of Utility Modeling.
As shown in Japanese Patent No. 57286, this roller is provided with two pairs of rollers spaced apart in the stranded wire passing direction so that the roller axes of each pair intersect at right angles. The rollers are not arranged in an annular shape, and the working surfaces of each pair of rollers have an incomplete annular formation, so that the friction reduction effect caused by the revolution of the rollers is insufficient. In addition, in this example, the rollers are configured to rotate actively using a separately provided drive shaft.
It is not easy to perform synchronized rotation with stranded wires that undergo complicated rotations such as undulating rotation, and because of the active rotation, there is a drawback that frictional resistance is generated between the stranded wire and the stranded wire.

The guide roller of the present invention has a plurality of rollers disposed in an annular manner so that the working surfaces form a ring, and the roller ring is configured to passively rotate in accordance with the rotating twisted wire. It was possible to achieve great effects and eliminate the drawbacks of the known revolution-revolution guide rollers.

[Brief explanation of the drawing]

The figures show one embodiment of the guide roller of the present invention, in which FIG. 1 is a front view partially shown in cross section, and FIG. 2 is a side view partially shown in cross section. DESCRIPTION OF SYMBOLS 1... Roller, 2... Roller receiver, 3... Center axis of roller ring, 4... Roller action surface, 5... Bracket, 6... Bearing, 7... Support plate, 8...
twisted wire.

Claims (1)

[Claims] 1 A plurality of rollers 1 are arranged in an annular manner using an integral roller bearing 2 so that the roller working surface 4 forms a circular ring, and the roller bearing 2 is provided with a tubular bracket 5 that shares the central axis 3 with the circular ring. , and the bracket is rotatably supported by a support plate 7 via a bearing 6, so that the plurality of annularly arranged rollers 1 can rotate as a unit around the central shaft 3, and the rotation thereof is is characterized in that it is not actively rotated by a driving force from another source with respect to the stranded wire 8 passing through the annular ring, but is passively rotated in accordance with the rotation of the stranded wire 8. Rotating guide roller.