JPS6236190Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a re-twisting device used in a communication cable cable twisting machine or the like.

FIG. 1 shows an outline of a communication cable twisting machine. a is a bow-shaped fryer, and rotating cylinders b ₁ and b ₂ are integrally attached to both ends, and each rotating cylinder
b ₁ and b ₂ are rotatably supported by stands c ₁ and c ₂ . Denoted at cradle e is a cradle suspended from rotary cylinders b ₁ and b ₂ via bearings f ₁ and f ₂ , and supports a winder g and a capstan d. Therefore, the cable cores l,... have a set plate m, a twisting die n,
The fibers are wound up by a winder g after passing through the rotary tube b ₁ , the flyer a, the rotary tube b ₂ and the capstan d, and are twisted together by the rotation of the flyer.

In the above-mentioned wire twisting machine, a radial arm-shaped retwisting plate is usually provided at the capstan side tip of the rotary tube _b2 in order to correct twisting disorder and twisting of the twisted wire.

Figure 2 shows a conventional retwisting device, in which the rotating cylinder
A bearing housing 1' is fixed to the tip of b ₂ , a batten holder 3' is supported within the housing 1' via a bearing 2', and a re-twisted batten 3 is attached to this batten holder 3'.
0' is attached via a cap 31'. However, the core wires passing through the retwisting plate 30' are twisted by the rotation of the fryer.
Therefore, the re-twisted plate 30' is rotated by the core wire in this twisting direction, but since the rotation direction and rotation speed of the re-twisted plate 30' are the same as that of the rotating cylinder _b2 ,
Normally, the bearing 2' is essentially relatively stationary, with the balls between the outer and inner races of the bearing being stationary. Therefore, foreign matter such as dust is likely to accumulate between the balls.

On the other hand, in the above case, when the core wires passing through the re-twisting plate have a twisted disorder or a twist failure, the re-twisting plate naturally rotates, and the rotation corrects the twisted disorder.
In this case, as the batten rotates, the bearing also rotates. This rotation needs to be performed as quickly and smoothly as possible (to avoid applying excessive external force to the core wire), but as mentioned above, it is easy for foreign matter to accumulate inside the bearing. This is disadvantageous to ensuring quick and smooth rotation.

The stranded wire retwisting device according to the present invention was devised in view of the above points, and the stranded wire passes through the rotating tube while being rotated at the same number of rotations as the rotating tube. It is characterized in that an intermediate housing is supported by a bearing at the tip, and a batten is supported by a batten holder on the intermediate housing by a bearing.

The present invention will be explained below with reference to the drawings.

In FIG. 3, b ₂ is a rotating cylinder, which is rotated at a predetermined rotational speed as explained in FIG. 1.
Reference numeral 1 denotes a bearing housing attached to the tip of the rotary cylinder _b1 with screws or the like. Reference numeral 2 denotes an intermediate housing, which is supported by the bearing housing 1 at a hollow shaft portion 21 through a bearing 3a. Reference numeral 4 denotes a batten holder, which is supported by the intermediate housing 2 by a bearing 3b at its rear half. 40 is a re-twisted board, and a cap 41 is attached to the tip of the board holder 4.
installed by.

As mentioned above, the re-twisted plate 40 and the rotary cylinder _b2 rotate at the same rotation speed, but as is clear from the figure, the intermediate housing 2 is rotated by the bearing 3a.
Alternatively, since it is driven only by the frictional resistance at the part 3b, it cannot have the same rotation speed as the re-twisting plate 40 or the rotating cylinder _b2 , and therefore the intermediate housing 2 cannot rotate at the same speed as the retwisting plate 40 or the rotating cylinder b2. It rotates relative to both of the bearing housings 1, and both the bearings 3b and 3a are always in a rotating state.

As mentioned above, in the wire retwisting device according to the present invention, the bearings that support the batten can be kept in a rotating state at all times, which eliminates the disadvantages of the conventional example in which the bearings are in a stationary state, such as dust on the bearings. This eliminates the disadvantage that the smoothness of the re-twisting adjustment function of the battens is hindered due to the accumulation of foreign matter. In addition, since the rotation of the re-twisting plate for re-twisting adjustment is performed based on the state in which the bearing is constantly rotating, the influence of rotational inertia during adjustment can be reduced. The force acting on the batten can also be minimized, and the re-twisting adjustment function of the batten can be improved from this point of view as well.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing a known wire twisting machine, FIG. 2 is an explanatory diagram showing a known wire retwisting device, and FIG. 3 is an explanatory diagram showing a wire retwisting device according to the present invention. In the figure, b ₂ is a rotating cylinder, 1 is a bearing housing, 2 is an intermediate housing, 3a and 3b are bearings,
4 is a batten holder, and 40 is a re-twisted batten.

Claims (1)

[Scope of utility model registration request] An intermediate housing is supported by a bearing at the tip of the rotating cylinder through which the stranded wire passes through the rotating cylinder while being rotated at the same rotation speed as the rotating cylinder, and a batten is supported in the batten holder by a bearing in the intermediate housing. A twisted wire retwisting device characterized by: