JPH11262126A - Cable coat stripper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remove the coat layer of a cable with good workability, without damaging the conductors of the cable, by making the projection height of a cutting blade member adjustable, and holding two-direction blades perpendicular so that one-direction blade may be directed in the circumferential direction of the cable, and that the-other blade may be directed in the axial direction. SOLUTION: A cutting blade member 16 is held so as to project from a V-shaped groove 11a, and is adjustable by an adjusting screw 17. And a wide blade part have two directions perpendicular to each other, and is held by a cutting blade member holding part 15 so that its one-direction blade part may be directed in the circumferential direction of a cable and that the other blade part may be directed in the axial direction. And it is moved and returned only by a specified distance in the axial direction of the cable 1, and its coat layer is cut in the axial direction into a strip by the blades. Besides, a cable coat remover is rotated around the axis of the cable 1, the coat layer 2 is cut into a strip circumferentially. Consequently, it becomes possible to remove the coat layer of the cable with good workability, without damaging the conductors of the cable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable sheath removing apparatus for removing a sheath layer formed on a cable core of a cable such as a communication cable.

[0002]

2. Description of the Related Art Conventionally, a cable covering layer is removed by the following method, for example. That is, as shown in FIG. 6 (a), two thin plate-shaped cutting blades (not shown) are fed to the thickness of the coating layer 2 and 360 degrees are passed over the circumference of the cable in the cut state. Rotate to make a linear cut 4 on the circumference of the coating layer 2. Next, the length of the coating layer 2 to be removed (for example, the length required for the connection process of about 30 cm)
In the same manner, a linear cut 5 is made on the circumference at a distance. Next, the direction of the cutting blade is changed, and the cutting blade is moved in parallel to the axial direction of the cable 1 so that two linear cuts 6, 6 are formed axially symmetrically from the cut 4 to the cut 5 on the circumference. . Then, as shown in FIG. 6B, the coating layer portion 2a cut into a semi-cylindrical shape can be removed, and a coating removal portion in which the cable core wire 3 is exposed can be formed in the middle portion of the cable 1. .

[0003]

However, the above-described method of removing the cable coating layer has the following problems. That is, as shown in FIG. 7, while the cutting blade 7 is fed to the lower portion of the coating layer 2 in the proper state (a), when the cutting blade 7 is insufficiently fed (b), the cutting operation needs to be repeated. Occurs. Moreover, in the state (c) where the cutting blade 7 is excessively fed, the cable core 3 is damaged. The degree of feeding of the cutting blade for removing the coating layer differs depending on the type of the cable, and the same type of cable is also affected by the variation in the coating layer thickness at the time of manufacturing. Therefore, it is necessary to set the degree of feeding of the cutting blade to an appropriate state each time the coating layer is removed. Conventionally, the degree of feeding of the cutting blade depends on the skill of the operator, and there has been a problem that it is difficult to perform accurate feeding.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and a cable having a coating layer formed on a cable core wire is relatively rotatable around the cable, and the shaft is rotatable. Cable gripping means for gripping so as to be relatively movable in the direction, and a blade portion which is wide in two orthogonal directions, and which is attached to the cable gripping means and relatively rotates around the cable, or relatively in the axial direction. A cutting blade member for cutting a coating layer of a moving cable, and a blade in two directions perpendicular to the cable gripped by the cable gripping means so that the protruding height of the cutting blade member can be adjusted. And a cutting blade member holding portion for holding the cutting blade member so that the blade portion in one direction faces the circumferential direction of the cable and the blade portion in the other direction faces the axial direction of the cable. The feature of A Le coating removing apparatus. here,
The wide blade portion is a blade portion having a width wide enough to allow the state of the cutting trace to be visually confirmed.

When the cable coating removing device of the present invention is relatively rotated about the cable and the coating layer in the circumferential direction of the cable is cut, the cutting mark becomes strip-shaped because the blade portion is wide, and the cutting mark is formed. Can be visually confirmed. Therefore, while visually checking the state of the cutting trace, adjusting the protrusion height of the cutting blade member, and cutting the coating layer in the circumferential direction, the point at which the coating layer is removed and the cable core wire is exposed. Can be easily confirmed. When the projecting height of the cutting blade member at that time is set to a proper state, cutting can be performed without damaging the cable core wire. In addition, the cutting blade member having a blade portion that is wide in two orthogonal directions is such that the blade portion in one direction in two orthogonal directions faces the circumferential direction of the cable, and the blade portion in the other direction is the axis of the cable. It is held by the cutting blade member holding portion so as to face in the direction. Accordingly, when the cutting blade member is held in an appropriate state for circumferential cutting as described above, the cutting blade member is relatively moved in the axial direction of the cable without changing the direction of the blade portion as it is. , The coating layer can be cut and removed in a strip shape in the axial direction with good workability without damaging the cable core.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. Figures 1, 2, and 3 respectively
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view, a left side view, and a right side view of an embodiment of a cable coating removing apparatus according to the present invention. 1, 2 and 3, reference numerals 11 and 12 denote a fixed gripper and a movable gripper having V-grooves 11a and 12a, respectively, which constitute cable gripping means. Fixed gripper 11
Is fixed to the side plate 13. Further, the movable gripper 12 is fixed to the side plate 13 by a retaining screw 14 so as to be slidable along a vertically long hole 13 a provided in the side plate 13. When gripping the cable 1, the movable gripper 12 is slid with respect to the side plate 13 according to the outer diameter of the cable 1, and is fixed with the retaining screw 14.

Reference numeral 15 denotes a cutting blade member holding portion provided on the fixed holding body 11. The cutting blade member holding portion 15 holds the cutting blade member 16 so as to penetrate the fixed holding body 11 and protrude from the V-shaped groove 11a. The height of the cutting blade member 16 protruding from the V-groove 11 a can be adjusted by an adjusting screw 17.

As shown in FIGS. 4 and 5, the cutting blade member 16 has wide blade portions 18 and 19 for visually confirming the cutting state.
Are held in two orthogonal directions, and the cutting portion 18 is held by the cutting blade member holding portion 15 so that the blade portion 18 faces the circumferential direction of the cable 1 and the blade portion 19 faces the axial direction of the cable 1. . The end surface of the cutting blade member 16 has a cylindrical concave surface. The blade portion 18 forms a straight line, and cuts the coating layer 2 of the cable 1 which rotates relatively around an axis into a band shape in the circumferential direction. Further, the blade portion 19 has a concave shape, and efficiently cuts the cylindrical coating layer 2 of the cable 1 which moves relatively in the axial direction in a band shape in the axial direction.

The cable covering layer of the stretched cable is removed by the following procedure using the cable covering removing apparatus of this embodiment. 1) First, as shown in FIGS.
The cable 1 is inserted between the grooves 11a and 12a, and then the movable gripper 12 is slid upward to make the V-grooves 11a and 1a.
At 2a, the cable 1 is gripped so as to be relatively rotatable around its axis and relatively movably in its axial direction, and the movable gripping body 12 is fixed to the side plate 13 with a set screw 14 at that position. 2) Next, as shown in FIG. 4, the cutting blade member 16 is protruded by turning the adjusting screw 17, and the blade portion 19 is brought into contact with the coating layer 2 of the cable 1. From this state, the blade portion 19 is reciprocated a predetermined distance in the axial direction of the stretched cable 1 while gradually protruding the blade portion 19 so as to cut into the coating layer 2. Direction, and a cutting portion 20 is provided. When the cutting is performed and the cable core 3 is exposed and confirmed, the protruding cutting blade member 1 is protruded without changing the direction of the blade portion 19.
Return 6 to its original position. 3) Next, as shown in FIG.
And the blade 18 is brought into contact with the end of the cutting section 20. From this state, the cable coating removing device is rotated around the axis of the stretched cable 1 while the blade portion 18 is further gradually protruded and cut into the coating layer 2 so that the coating layer 2 is cut.
Is cut into a belt shape to provide a cutting portion 21. Cutting part 2
1 are provided at both ends of the cutting portion 20. The cutting state of the cutting unit 21 can be visually confirmed from slits 11b and 12b (shown in FIG. 2) provided on the side surfaces of the fixed gripper 11 and the movable gripper 12. Then, cable core 3
When the is exposed, the cutting in the circumferential direction is completed. 4) Next, the end portion of the coating layer 2 between the two cutting portions 21 in the circumferential direction is gripped by a jig and peeled from the cable 1.

[0010] As described above, the use of the cable jacket removing apparatus of the present embodiment enables the cable jacket removing apparatus to be performed without depending on the skill of the operator.
Since the removal state of the coating layer 2 can be confirmed visually, the coating layer 2 of the cable can be removed without damaging the cable core wire 3. Also, the cutting blade member 1
Since the cutting in the circumferential direction and the axial direction can be performed without changing the direction of the blade portions 18 and 19 of 6, the workability is good.

[0011]

As described above, according to the present invention, there is an excellent effect that the covering layer can be removed without damaging the cable core and with good workability.

[Brief description of the drawings]

FIG. 1 is an explanatory front view of an embodiment of a cable jacket removing apparatus according to the present invention.

FIG. 2 is an explanatory diagram of the left side surface of FIG. 1;

FIG. 3 is an explanatory right side view of FIG. 1;

FIG. 4 is an explanatory view of removing a coating layer in the axial direction of the cable according to the embodiment.

FIG. 5 is an explanatory diagram of removing a coating layer in a circumferential direction of a cable according to the embodiment.

FIGS. 6A and 6B are explanatory views of a conventional method for removing a cable coating layer.

FIG. 7 is an explanatory diagram of a problem of a conventional method of removing a cable coating layer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cable 2 Coating layer 2a Coating layer part 3 Cable core 4, 5, 6 Cut 7 Cutting blade 11 Fixed grip 11a, 12a V-groove 12 Movable grip 13 Side plate 13a Long hole 14 Fastening screw 15 Cutting blade member holder 16 Cutting blade member 17 Adjusting screw 18, 19 Blade part 20, 21 Cutting part

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Akio Goto 2-6-1 Marunouchi, Chiyoda-ku, Tokyo Furukawa Electric Co., Ltd. (72) Inventor Koji Watanabe 3-4116 Azune, Niigata City, Niigata Prefecture

Claims (1)

[Claims] 1. A cable gripping means for gripping a cable having a coating layer formed on a cable core wire so as to be relatively rotatable around the cable and relatively movable in the axial direction, and in two orthogonal directions. A cutting blade member attached to the cable gripping means and configured to cut a coating layer of the cable which relatively rotates around the cable or moves relatively in the axial direction; and With respect to the cable gripped by the means, the protruding height of the cutting blade member can be adjusted, and the one-directional blade portion of the two orthogonal blade portions faces the circumferential direction of the cable, and A cutting blade member holding portion for holding the cutting blade member so that the blade portion in the other direction faces the axial direction of the cable.