JPS6118497B2 - - 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 and a width smaller than the outer diameter of the cable as a means for guiding the cable to the winding position. , a cable detachment prevention device is provided on the side of the rotating pulley at a position where the rotating pulley does not come into contact with the flange even if the rotating pulley moves close to the flange of the winding drum, and the winding drum is rotated in the opposite direction to the rotating direction of the rotating pulley. By rotating the cable, the cable is wound around approximately half the outer circumference of the rotating pulley, and the cable is guided while being bent in the opposite direction to the bending direction when the cable is wound around the winding drum. The cable is moved back and forth, and the cable is wound while adjusting the distance between the rotary pulley and the winding drum according to the thickness of the cable.

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

1 is an explanatory plan view, FIG. 2 is an explanatory side view, and FIG. 3 is an explanatory front view of the rotary pulley.

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 which supports the winding drum 2, and is adapted to move up and down while supporting the winding drum 2 by means of a hydraulic lifting device 12. 6 is a screw shaft, and 7 is a traverser body, and the traverser body 7 is adapted to move left and right by rotation of the screw shaft 6. This traverser body 7
A cable guide roll 8, an arm 9, a rotary pulley 10, and a cable detachment prevention device 11 are attached to the
These and the screw shaft 6 constitute a traverser T.

In this configuration, the winding drum 2 is raised to bring the winding drum 3 closer to the rotary pulley 10, and the cable 1
By winding up the cable 1 while 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 leaving too much space 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 up on the winding drum 3 increases, making it difficult to wind it up 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 approximately equal to the diameter of the winding drum 3, but preferably slightly larger than this.

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 portion 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 first stage winding is completed, or slightly earlier, the hydraulic lifting device 12 is operated to move the winding drum 2 onto the cable 1.
By lowering the cable layer by the outer diameter of the rotary pulley 10, the distance between the rotary pulley 10 and the cable layer wound in the first stage is maintained equal to the distance between the rotary pulley 10 and the winding drum 3 during winding of the first stage. The cable 1 can be wound up in a predetermined position. Thereafter, 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 cable 1 of the required length is wound up.

Further, in the present invention, the width W of the rotating pulley 10 is made smaller than the outer diameter D of the cable 1, so that the cable 1 can be tightly wound up to the edge of the collar 4. However, if W<D, the rotating pulley There is a possibility that the cable 1 may easily come off from the cable 10.

In order to solve this problem, a cable detachment prevention device 11 is provided on the side of the rotating pulley 10.
The cable detachment prevention device 11 must be provided so as not to contact the collar 4 even when the winding drum 3 of the winding drum 2 is brought close to the rotary pulley 10, and is provided, for example, at a position on the upper half of the rotary pulley 10.

Note that in the present invention, the winding drum may be moved laterally and the rotating pulley may be fixed, and instead of moving the winding drum up and down, the rotating pulley may be moved up and down. It is not limited to.

As explained above, according to the present invention, the cable undulation is alleviated by the rotating pulley, and since the distance between the rotating pulley and the winding drum can be freely adjusted, the wire can be guided close to the winding drum, and the cable can be guided to a predetermined position. It becomes possible to wind the cable in position,
It becomes possible to automatically wind up cables in an aligned manner, which was conventionally impossible.

Further, according to the present invention, it is possible to prevent winding disorder at the end of the winding drum, and to prevent the cable from coming off the rotating pulley.

[Brief explanation of the drawing]

The attached drawings are explanatory views of one embodiment of the present invention, in which Fig. 1 is a plan explanatory view, Fig. 2 is a side explanatory view,
FIG. 3 is an explanatory front view of the rotary pulley. 1: cable, 2: winding drum, 3: winding drum,
4: Collar, 5: Stand, 6: Spiral shaft, 7: Traverser body, 8: Guide roll, 9: Arm, 10: Rotating pulley, 11: Cable detachment prevention device, 12: 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. Use a rotary pulley with a diameter larger than this and a width smaller than the outer diameter of the cable, and the side part of the rotary pulley, even if the rotary pulley moves close to the collar of the winding drum, will not touch the collar. A device to prevent the cable from coming off is provided at a position where it does not come in contact with the cable, and by rotating the take-up drum in the opposite direction to the rotating direction of the rotating pulley, the cable is wound around approximately half of the outer circumference of the rotating pulley, and the cable is wound around the take-up drum. The cable is guided while being bent in the opposite direction to the bending direction, and the rotating pulley reciprocates between the flanges of the winding drum while adjusting the distance between the rotating pulley and the winding drum according to the thickness of the winding of the cable. A cable winding method characterized by winding the cable.