JPH0560122U - CV cable connection cutting machine - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a cutting machine that cuts a connection portion of a CV cable simply and safely in work and without impairing initial performance. [Structure] A sample 1 to be cut is sandwiched between fixing brackets 8 of a cutting device mounted on a fixed mount 8 to adjust the cutting height. After that, the rotary cutter 3 is started, and while being moved, it is moved rightward (or leftward) along the cutting plane 11 of the center line to start the cutting of the insulating protective layer 10. Next, the traveling distance limit switch 5 and the control device 9 reverse the moving direction to move in the opposite direction, and further the rotary cutter 3 moves in the right-angled direction to cut deeply. It is necessary to consider that the insulating protection layer 10 at the cut portion does not melt due to high temperature. However, it is preferable that the cutting depth of the rotary cutter is set to about 5 to 10 mm and gradually approached to the intermediate sleeve 13 near the conductor 12.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a CV cable, in particular, a cable having a high insulation pressure, and a cutting machine for an insulation protection layer at a connection portion thereof.

[0002]

[Prior Art]

 Conventionally, when cutting the sample, a method of cutting with a hand tool of a cutter knife, a method of heating and softening the sample with a thermostat and the like and then cutting with a cutter knife have been used.

[0003]

[Problems to be solved by the device]

 However, since the CV cable insulator is very hard at room temperature, the thicker the insulator, the more difficult and dangerous the cutting work with a hand tool such as a cutter knife is. The heating operation makes the cutting work relatively easy. However, if it is necessary to accurately measure the initial amount of cross-linking residue contained in the insulator after removing the insulator, heating will cause the residue to volatilize and the residue will not be measured accurately. There was a problem that it became impossible to understand the characteristics.

It is an object of the present invention to provide a cutting machine that eliminates the above-mentioned drawbacks, cuts the insulating protective layer at the connection portion of the CV cable easily and safely, and without impairing the initial performance. It is in.

[0005]

[Means and Actions for Solving the Problems]

 The above object of the present invention is to fix the cut metal part of the CV cable and the insulation protection layer outside the conductor of the CV cable to a specified depth while reciprocating along the center line of the CV cable. A CV cable connection cutting machine, characterized in that it comprises a cutting machine.

In the present invention, the fixing fitting for fixing the cut portion of the CV cable is a support tool for fixing the CV cable at the end of the cut portion, even if the fixing fitting includes a fitting for fixing the cut portion on the table. It doesn't matter.

In the present invention, cutting the insulating protective layer outside the conductor of the CV cable while reciprocating along the center line of the CV cable is most effective for separating the conductor and the insulating protective layer. This is because it is easy.

Cutting to a specified depth while reciprocating means that, when a rotary cutter, for example, a diamond cutter is cut while being rotated by a cutting machine, the rotation speed is such that frictional heat due to rotation does not melt the insulator. Must be selected. Further, in order to prevent the temperature of the insulator from rising due to frictional heat, it is preferable to gradually cut to a specified depth while reciprocating. Therefore, the rotary cutting machine also needs to move in a depth perpendicular to the reciprocating motion. The depth defined in the present invention means the depth at which the conductor is reached without damaging the conductor.

In the present invention, as the cutting machine, not only a rotary diamond cutter but also a knife cutter may be used, or a cutter using a laser beam may be used. In that case also, it is preferable to make deeper cuts while reciprocating.

In the present invention, the reciprocating cutter is provided on both sides of the CV cable connection portion, which is convenient for shortening the cutting time for cutting from both sides at the same time.

Further, the movement amount of the reciprocating motion can be adjusted by providing a control switch so that the movement amount can be adjusted according to the length of the connecting portion.

[0012]

【Example】

 An embodiment of the present invention will be described with reference to FIGS. However, the present invention is not limited to this embodiment. The sample 1 to be cut is sandwiched between the fixing brackets 2 of the cutting device mounted on the fixed mount 8 to adjust the cutting height position. After that, the rotary cutter is started to move rightward (or leftward) along the cutting plane 11 of the center line to start the cutting of the insulating protective layer 10. Next, the traveling distance setting limit switch 5 and the control device 9 reverse the direction of movement to move in the opposite direction, and further the rotary cutter 3 in the direction at right angles to cut deeply. Of course, cutting from the same direction is not limited, but it is necessary to consider so that the insulating protective layer 10 at the cut portion does not melt due to high temperature. However, it is preferable that the cutting depth of the cutter when cutting with the rotary cutter is set to about 5 to 10 mm and gradually approaches the intermediate sleeve 13 near the conductor 12.

[0013]

[Effect of the device]

 The following effects can be expected by the CV cable connecting machine of the present invention.

1) A hand tool such as a cutter knife is not required, and safety is improved.

2. Since it is not necessary to heat, it can be cut without impairing the initial physical properties.

3 Simultaneous cutting on both sides is possible, and since the working time can be shortened, the working man-hour can be reduced and simplified.

[Brief description of drawings]

FIG. 1 is a side view (A) and a cross-sectional view (b) of an embodiment of a cutting machine for connecting parts of the present invention.

FIG. 2 is a perspective view (A) and a sectional view (b) of a cut portion of a CV cable connecting portion.

[Explanation of symbols]

 1 Sample to be cut 2 Fixing bracket 3 Rotating cutter 4 Girder motor 5 Travel distance setting limit 6 Electric motor 7 Transmission 8 Fixed mount 9 Control device 10 Insulation protection layer 11 Cut surface 12 Conductor 13 Intermediate sleeve

Claims (1)

[Scope of utility model registration request] 1. A fixture for fixing a cut portion of a CV cable, and a cutter for cutting an insulating protective layer outside a conductor of the CV cable to a specified depth while reciprocating along a center line of the CV cable. A cutting machine for a connection portion of a CV cable, which comprises: