JPS6142707B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for winding a cable in which a plurality of insulated core wires are twisted together and a plastic sheath is provided around the outer periphery.

Various automatic cable alignment and winding devices have been proposed so far.

However, in cables such as communication cables that have a plastic sheath on the outer periphery of a cable core made by twisting multiple insulated core wires, undulations occur in the cable due to internal stress that tries to untwist it. When winding onto a drum, the windings tend to run on adjacent pre-wound cables, or the distance between windings is too large, making automatic alignment winding impossible.

An object of the present invention is to provide a novel winding method that can eliminate the adverse effects of cable waviness during winding.

The present invention uses a rotating pulley having a diameter substantially equal to or larger than the diameter of the winding drum of the winding drum as a means for guiding the cable to the winding position, and the winding drum is rotated in a direction opposite to the rotation direction of the rotary pulley. By rotating the cable in the direction, the cable is wound approximately half the circumference of the rotating pulley, and the cable is guided while being bent in the opposite direction to the bending that is applied to the cable when it is wound around the winding drum. The cable is wound while adjusting the distance between the rotary pulley and the winding drum according to the winding thickness of the cable.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is an explanatory plan view of one embodiment of the present invention, and FIG.
The figure shows a side view.

1 is a cable, 2 is a winding drum, and the winding drum 2 consists of a winding drum 3 and a collar 4. Reference numeral 5 denotes a stand that supports the winding drum 2, and is adapted to move up and down while supporting the winding drum 2 by a hydraulic lifting device 11. 6 is a screw shaft, and 7 is a traverser body, and the traverser body 7 is adapted to move from side to side by rotation of the screw shaft 6. A cable guide roll 8, an arm 9, and a rotary pulley 10 are attached to the traverser body 7, and a traverser T is constituted by these and the screw shaft 6.

In such a configuration, the winding drum 2 is raised to bring the winding drum 3 closer to the rotating pulley 10, and the cable 1
By rotating the winding drum 2 in a direction opposite to the direction of rotation of the rotary pulley 10, which rotates as the cable runs, it is possible to prevent the adverse effects of cable waviness.

That is, the cable 1 is wound around the rotary pulley 10 over almost half its outer circumference, and the cable is bent in the opposite direction to the bending when the cable is wound around the winding drum, so that the waviness is alleviated and By being guided close by the rotary pulley 10, the winding can be accurately wound at a predetermined position on the winding drum 3, and it is possible to prevent the winding from running over or having an excessively large interval between windings.

If the winding drum 2 is rotated in the same direction as the rotation direction of the rotating pulley 10, the length of the cable 1 wound around the rotating pulley 10 will be shortened, and the undulations will not be sufficiently alleviated, and the cable 1 will rotate. The distance from leaving the pulley 10 to winding around the winding drum 3 increases, making it impossible to wind the winding at a predetermined position on the winding drum 3.

The diameter of the rotating pulley 10 is determined from the viewpoint of undulation mitigation effect and prevention of adverse effects on the cable 1.
It is preferable that the diameter be approximately equal to or slightly larger than the diameter of the winding drum 3.

The cable 1 is wound onto the winding drum 3 while rotating the screw shaft 6 so that the traverser main body 7 moves laterally by the outer diameter of the cable 1 with each rotation of the winding drum 2, and the cable 1 is wound onto the winding drum 3. When winding is completed, the screw shaft 6 is reversed, the traverser body 7 is moved in the opposite direction, and the second stage winding is started.

At this time, at the same time as the winding of the first stage is completed, or slightly earlier, the hydraulic lifting device 11 is operated to lower the winding drum 2 by the outer diameter of the cable 1. Pulley 10
The distance between the cable layer and the cable layer wound in the first stage is
The distance between the rotary pulley 10 and the winding drum 3 is kept equal to the distance between the rotary pulley 10 and the winding drum 3 during winding of the stage, and the cable can be wound at a predetermined position.

Each time the winding of each stage is completed, the winding drum 2
is lowered by the outer diameter of the cable 1, and the required length of the cable 1 is wound up. by the way,
From the end of each stage to the beginning of the next stage, Tsuba 4
Since the rotary pulley 10 will come into contact with the windings, there is a possibility that tight winding will not be possible. In this case, when the rotary pulley 10 approaches the collar 4, the hydraulic lifting device 1
1, the winding drum 2 is lowered to the extent that the flange 4 does not touch the rotating pulley 10, and the traverser body 7 is folded back and the rotating pulley 10 is taken up.
Tight winding is possible by raising the winding drum 2 again at a certain distance from the collar 4 and winding it up.

Winding is performed with the rotary pulley 10 and the winding drum 3 separated at most from winding drums 1 to 2.
It is a rotational quantile, so there is no possibility of winding disorder.

FIG. 3 shows another embodiment of the invention. The cable 1 is wound onto a winding drum 2 via two rotating pulleys 12 and 10, and the winding drum 2 is configured to rotate in the opposite direction to the rotating pulley 10. By providing the two rotary pulleys 12 and 10 in this way, the undulations of the cable 1 can be further alleviated.

In the present invention, the winding drum may be moved laterally and the rotating pulley may be fixed, and the rotating pulley may be moved up and down instead of moving the winding drum up and down. The examples are not limited.

As explained above, according to the present invention, the internal thread of the wire is relaxed by the rotating pulley, and the distance between the rotating pulley and the winding drum can be freely adjusted, so the cable can be guided close to the winding drum, and the cable can be guided close to the winding drum. It becomes possible to wind the wire at a predetermined position on the shell, and it becomes possible to automatically wind up the cable in an aligned manner, which was conventionally impossible.

[Brief explanation of the drawing]

FIG. 1 is an explanatory plan view of one embodiment of the present invention, and FIG.
The figure is a side explanatory view of one embodiment of the present invention, and FIG. 3 is a side explanatory view of another embodiment of the present invention. 1... Cable, 2... Winding drum, 3... Winding drum, 4... Tsuba, 5... Stand, 6... Screw shaft, 7
... Traverser body, 8 ... Guide roll, 9 ...
Arm, 10...Rotating pulley, 11...Hydraulic lifting device, T...Traverser.

Claims (1)

[Claims] 1. In a method of winding a cable with a plastic sheath on the outer periphery of a twisted plurality of insulated core wires on a winding drum, a wire approximately equal to the diameter of the winding drum of the winding drum is used as a means for guiding the cable to the winding position. Using a rotating pulley with a diameter larger than this, the cable is wound around approximately half of the outer circumference of the rotating pulley by rotating the take-up drum in the opposite direction to the rotating direction of the rotating pulley. The cable is guided while being bent in the opposite direction to the bending direction to be wound around the drum, and the rotating pulley moves back and forth between both flanges of the winding drum, and the distance between the rotating pulley and the winding drum is adjusted according to the thickness of the winding of the cable. A cable winding method characterized by winding the cable while making adjustments.