JPH04200214A - Cable stripper - Google Patents

Abstract

PURPOSE:To prevent the core wire of a cable from being cut, by making a remover have forward blades which touch the cable with cutting blades provided at their tips and which are fitted so as to cross the forward direction of the said cable at an acute angle, and backward blades which are fitted on the side of its backward direction so as to cross the backward direction of the said cable at an acute angle. CONSTITUTION:Both forward blades 10, 12 are fitted so as to cross the forward direction of a cable C1 at an acute angle. So, the cable C1 is moved in the forward direction of C1 by using a forward-side moving means 5, and the cable C1 is cut by the cutting blades 9, 11 provided at their tips and touching the cable C1. Besides, when the cable C1 is moved in the forward direction, a part of the covering 3 of C1 is removed by both forward blades 10, 12, and the covering 3 of a specified length is removed. Then C1 is moved in the backward direction by the use of a backward-side moving means 6. And the covering 3 is separated and removed from C1 by similar action, as both backward blades 14, 16 have been fitted so as to cross the backward direction of C1 at an acute angle.

Description

Detailed Description of the Invention: "Industrial Application Field" The present invention relates to a device for removing the sheath covering the outer periphery of the core wire of a cable, and in particular, it is capable of efficiently removing the sheath in the middle portion of the cable. The present invention relates to a cable sheath removal device.

``Prior Art'' Conventionally, as a device for removing the coating covering the outer periphery of the core wire of a cable, for example, clamping jigs are provided at a predetermined distance from each other, and a similar device is placed next to the clamping jigs. In this case, cutters for cutting the sheathing are installed perpendicularly to the axis of the cable at a predetermined distance from each other. In this device, the cable is inserted into the gap between the double-strength jigs and both clamping jigs, and a drive device or the like is used to move both the clamping jigs and the double-strength jigs toward the center of the cable. When moved, both clamping jigs clamp the cable, and both clamping jigs cut into the sheathing by a preset cutting amount so as not to reach the core wire of the cable. Then, in this state, the double-strength claw is moved in the direction away from the clamping jig by a predetermined covering removal length to remove the covering.

``Problem to be Solved by the Invention'' However, although the above-mentioned device was effective in removing the coating from the end of the cable, it was difficult to remove the coating from the middle part of the cable. In this case, buckling occurs in the coating, and due to the influence of this buckling, some or all of the core wires may be cut. If the cut in the core wire is small, the cut part must be repaired or discarded [2], and if the cut in the core wire is large, the cable must be discarded and new insulation removed. In any case, there was a problem of deterioration of production efficiency.

An object of the present invention is to solve the problem that some or all of the core wires are cut even when removing the intermediate part of the cable, and to provide a cable sheath removal device with high production efficiency. be.

Means for Solving the Problems J In order to achieve the above object, the cable sheath removal device of the present invention includes a clamping means for clamping a cable consisting of a core wire and a coating on its outer periphery, and a cable that is clamped by the clamping means. and a moving means for reciprocating the cable in the axial direction thereof, and the clamping means is arranged so that the cutting edge at the tip contacts the cable and makes an acute angle with the forward direction of the cable. and a return cutter that contacts the cable with a cutting edge at its tip and is arranged so that the angle between the return cutter and the return direction of the cable is an acute angle on the cable return direction side of the return cutter. It is characterized by having the following.

"Operation" According to the cable sheath removal device of the present invention, when a cable consisting of a core wire and its outer periphery is clamped by the clamping means and the clamped cable is moved in the forward direction by the moving means, the clamping means Either an outgoing cutter is provided so that the cutting edge at the tip contacts the cable and makes an acute angle with the outgoing direction of the cable, or the cutting edge at the tip contacts the cable as the cable moves. Make a cut.

When the cable further moves in the forward direction, the cable moves while the coating is peeled off by the forward cutter. After moving a predetermined length, the cable is moved in the return direction by the moving means.

Then, a return cutter is provided on the clamping means and is arranged so that the cutting edge at the tip contacts the cable and makes an acute angle with the return route direction of the cable on the return route side of the cable, or a return cutter is provided at the tip. Cut the cutting edge into the cable. When the cable further moves in the return direction, the cable is moved while having its coating peeled off by the return cutter. Then, when the returning cutter reaches the part of the coating that has been peeled off by the outward path, the coating is separated from the cable and removed.

Embodiment A cable sheath removal device according to an embodiment of the present invention will be described below with reference to FIGS. 1 to 7.

In this embodiment, an example will be described of an apparatus that simultaneously removes the coating from the intermediate portion of a cable including a plurality of wide cables such as tape core wires.

In addition, in this embodiment, the moving direction of the cable is
Although referred to as a return trip, the rightward movement in FIGS. 1, 2, and 4 to 7 is the outward path, and the leftward movement in the figures is the return path.

In the figure, reference numeral 1 denotes a cable consisting of a core wire 2 and a coating 3 on its outer periphery, numeral 4 denotes a clamping means for clamping the cable I, and numeral 5
6 is a moving means on the outgoing side of the moving means for reciprocating the cable 1 held by the holding means 4 in its axial direction.
indicate the means of transportation on the return trip.

Here, the clamping means 4 has a lid part 7 and a base part 8, and the lid part 7
The cutting edge 9 at the tip contacts the cable 1 and is arranged so that the angle (A shown in FIG. 1) with the forward direction of the cable 1 (right direction in FIG. 1) is an acute angle. A forward cutting tool 10 is provided. On the other hand, the table part 8 also contacts the cable 1 with the cutting edge 11 at the tip,
An outgoing cutting tool 12 is disposed opposite to the outgoing cutting tool 10 so that the angle (A shown in FIG. 1) formed with the outgoing direction (right direction in FIG. 1) of the cable 1 is an acute angle. There is.

In addition, the lid part 7 has a cutting edge 13 at its tip that contacts the cable 1, and a return direction of the cable 1 (left side in FIG. 1) on the return direction side of the outbound cutter 10 (left side of the outbound cutter 10). A return cutter I4 is provided so that the angle (B shown in FIG. 1) formed by the return cutter I4 is an acute angle. In addition, the table part 8 also contacts the cable 1 with the cutting edge 15 at the tip, and also on the return direction side of the outgoing cutting tool I2 (outgoing cutting tool 12
A return cutter 16 is disposed opposite to the return cutter 14 so that the angle (B shown in FIG. 1) formed with the return direction of the cable 1 (left direction in FIG. 1) is an acute angle.
is provided. In addition, magnets 19 and 20 for suctioning and attaching the outgoing cutter are provided at the ends of the insertion parts 17 and 18 of the lid part 7 and the base part 8, respectively, and the outgoing cutter 10 is attached to the insertion part 17 of the lid part 7. , the outgoing cutter 12 is attached to the base part 8
When inserted into the insertion portions 18 of the magnets 19.
20, both outgoing cutting tools 1o and 12 are fixed respectively.

The lid part 7 and the base part 8 are hinged to each other at a hinge part 22 as shown in FIG. 3 so as to have a gap 21 between them according to the diameter of the cable 1. 1 can be easily held and removed. Note that, depending on the diameter of the cable 1 from which the sheathing 3 is being removed, the cutting edges 9.11 at the ends of both outgoing cutting tools 10.12 are set in substantially the same axial direction of the sheathing 3 of the cable 1 when the sheathing 3 is removed. It is provided so as to make contact with the position. Moreover, the width of both outward cutting tools 10 and 12 is wide enough to correspond to the width of the tape core wire or the like from which the coating is to be removed.

In addition, the return cutter 14.16 etc. are also the above-mentioned outward cutter 10.1.
It has almost the same structure as the 2nd prize. That is, the return cutter 14 is inserted into the insertion portion 23 of the lid portion 7, and the return cutter 16 is inserted into the insertion portion 24 of the base portion 8. Here, both push-in portions 23 and 24 are
The return cutting tool 14.16 is arranged to face the outgoing cutting tool 10.12 and to be on the return path side of the outgoing cutting tool 10.12. Both return cutting tools 14.16 are also provided so that the cutting edges 13.15 at the tips thereof come into contact with substantially the same axial position of the sheathing 3 of the cable I, respectively, when the sheathing is removed. Further, as described above, the width of both return cutters 14 and 16 is wide enough to correspond to the width of the tape core wire or the like from which the coating is to be removed. Similarly to the above, magnets 25 and 26 for attachment of return cutting tools are provided at the ends of the insertion portions 23 and 24 of each of the lid portion 7 and the base portion 8, respectively.

The platform 8 has fitting holes 27 and 28 into which the respective ends of the two shafts of the forward moving means 5 on the backward direction side are fitted, and two shafts of the backward moving means 6, which will be described later, are fitted. Fitting holes 29 and 30 are provided in which the respective ends of the shaft portion in the outward direction are fitted.

Further, the cutting edges 9.11 of both outgoing cutting tools 10.12 and the cutting edges 13.15 of both returning cutting tools 14.16 are made to protrude from the lid part 7 and the base part 8, and the sheathing 3 of the cable 1 is made to protrude. Three grooves are provided for removal.

The outward moving means 5 includes a base 32 and two holes 3 provided in the base 32 and having axes in the moving direction of the cable 1.
3.34, and a shaft portion 36 that is slidably fitted into the hole portion 33.34 via oil seals 35a and 35b, respectively.
．． 37, a stopper 38 which is provided on the forward direction side of the base 32 of both shaft parts 36 and 37 and stops the movement of the base 32 in the forward direction at a predetermined position, and a stopper 38 which is mounted on the base 32 and which connects the cable 1 to the base 32. It has a clamp member 39 that is held between the two. Note that, similar to the clamping means 4, the base 32 and the clamp member 39 are hinged (not shown), which allows the cable l to be attached and
This allows for easy removal. The forward side moving means 5 is fixed to the base by fitting and fixing the ends 40.41 of both shaft parts 36.37 into the above-mentioned both fitting holes 27.28 of the base part 8 of the clamping means 4. The cable 1 attached between 32 and the clamp member 39 is
It is fixed to the clamping means 4 so as to be on the same plane as the gap 21 of the clamping means 4.

Similarly, the return side moving means 6 includes a base 42 and a two-way unit provided on the base 42 and having an axis in the moving direction of the cable l.
a shaft portion 46.47 that is slidably fitted into the hole portion 43.44 via oil seals 45a and 45b, respectively; and a base 42 of both shaft portions 46.47.
A stopper 48 is provided closer to the return direction and stops the movement of the base 42 in the return direction at a predetermined position;
2 and a clamp member 49 for holding the cable l between it and the base 42. Note that, as described above, the base 42 and the clamp member 49 are hinged (not shown), so that the cable l can be easily attached and removed. The return side moving means 6 has both fitting holes 29 and 30 of the base portion 8.
By fitting and fixing the ends 50 and 51 of the shaft portions 46 and 47, respectively, the cable 1 attached between the base 42 and the clamp member 49 is flush with the gap 21 of the clamping means. It is fixed to the clamping means 4 in such a manner that it becomes .

In a cable sheath removal device having such a structure, first the cover part 7 is removed from the base part 8 and both clamp members 39 and 49 are removed.
are separated from both bases 32.42, and a cable l such as a tape core wire is mounted on the base 8 and both bases 32.42 on the same plane, and then the lid 7 is placed on the base 8 and By providing both clamp members 39 and 49 on the base 32 and 42, the cable 1 is moved to the outward moving means 5.
and fix it to the return side moving means 6 so as not to sag.

In this case, the cable l is set in advance at the starting position of the sheathing removal with both outgoing cutting tools. Set it so that it matches the cutting edge 9.11 at the tip of each of the 0 and 12.

In this state, the outward moving means 5 is moved in the outward direction using, for example, a drive device (not shown). Then, since both outgoing cutting tools 10.12 are arranged so that the angle formed with the outgoing direction of the cable 1 is an acute angle, as shown in FIG. Cable 1
If you hear it, it will cut into it. Then, when the cable 1 is further moved in the outward direction, the cable 1 moves while peeling off the sheathing 3 using both outgoing cutters 10 and 12, as shown in FIG. When separated, the outward moving means 5 comes into contact with the stopper 38 and ends its movement in the outward direction. Note that the stopper 38 is fixed in advance at a position corresponding to the length of the coating 3 to be removed. In addition, during the above process, both cutting edges 13.15 at the tips of both return cutting tools 14.16 are in contact with the sheathing 3 of the cable 1, but since they form an obtuse angle with respect to the moving direction of the cable 1, There is no cutting.

Next, the cable 1 is moved in the backward direction using the backward moving means 6. Then, since the return path cutting tools 14 and 16 are arranged so that the angles formed with the return path direction of the cable 1 are acute angles, the cutting edge 13 at the tip as shown in FIG.
．． 15 are respectively cut into the sheath 3 of the cable 1 in contact. Then, when the cable 1 is further moved in the return direction, the cable 1 peels off the coating 3 with both the return cutters 14.16, and the distance corresponds to the distance between the both return cutters 10.12 and the return cutters 14.16. When the two backward cutting tools 14 and 16 reach the part of the sheathing 3 that has been peeled off by the forward movement, the sheathing 3 separates from the cable 1 and is removed, as shown in FIG. 7.

Then, the backward moving means 6 comes into contact with the stoppers 48 attached to both shaft parts 46, 47 to prevent the sheathing 3 of the cable 1 from being newly cut by the backward cutting tool 14, 16, and ends the movement in the backward direction. . During the above process, the cutting edge 9.11 at the tip of the outgoing cutter 10.12 is in contact with the sheath 3 of the cable l, as described above, but since it forms an obtuse angle with respect to the moving direction of the cable l, There is no cutting into l.

In the above, the outgoing cutter and the return cutter can be appropriately selected depending on the type of cable, etc., so that they can cut into the sheath of the cable and do not cut into the core wire.

"Effects of the Invention" As detailed above, according to the cable sheath removal device of the present invention, when removing the sheath not only from the ends of the cable but also from the middle part of the cable, the core wire is cut. Since the coating can be removed without any damage, production efficiency is significantly improved.

In addition, by widening the width of the outgoing cutting tool and the returning cutting tool, it is possible to coat the middle part of a cable made of multiple wide cables, such as a tape core, at once. Since it can be removed, production efficiency is particularly improved when used in cables with such a structure.

[Brief explanation of the drawing]

1 to 7 schematically show a cable sheath removal device according to an embodiment of the present invention, in which FIG. 1 is a main sectional view, FIG. 2 is a plan view, and FIG. 3 is a clamping means. is seen from the X direction in FIG. 1, and FIGS. 4 to 7 are cross-sectional views showing step-by-step the situation in which the cable sheath is removed by the outward cutter and the return cutter. 1... Cable, 2... Core wire, 3... Sheathing, 4...
...Holding means, 5.i Outward side moving means (moving means),
6...Return side transportation means (transportation means), 9, 11, 13
．． 15... Cutting edge, 10, 12... Outward cutting tool, 14
．． 16... Return trip cutting tool, A... Angle formed by the outgoing cutting tool with the outgoing direction of the cable, B... Angle formed by the returning trip cutting tool with the return path direction of the cable.

Claims (1)

[Scope of Claims] The present invention comprises a clamping means for clamping a cable made of a core wire and a coating on its outer periphery, and a moving means for reciprocating the cable clamped by the clamping means in its axial direction, and the clamping means an outgoing cutter that contacts the cable with a cutting edge at its tip and is arranged so that an angle formed with the outgoing direction of the cable is an acute angle; A cable sheath removal device comprising: a return cutter disposed on the cable return direction side of the outward cutter such that the angle formed with the return route direction of the cable is an acute angle.