JPS635395Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cable insulation sheath cutting device suitable for cutting the insulation sheath of a cable by a predetermined thickness (particularly the outer semiconductive layer).

Conventionally, the above-mentioned work has been carried out by cutting the insulation coating of the cable to a certain thickness using the electric wire/cable insulation coating cutting device shown in Japanese Utility Model Publication No. 52-3653, but in this case, the cable must be rotated manually in the tangential direction of the cross section of the cable. Because of this, the rotational torque cannot be kept constant, resulting in unevenness on the finished surface of the cut cable, and the cut outer semiconducting layer wraps around the cable surface and has to be cut off with another knife to remove it. Therefore, there was a risk of damaging the cut surface of the cable. Furthermore, as the cable size increases due to the increase in cable capacity and pressure, the length of the cable to be cut becomes longer, and the above-mentioned manual work and removal of entangled cutting debris has the disadvantage of requiring a great deal of effort. be.

The present invention has been made to solve the above-mentioned drawbacks. That is, a cutting tool is attached to the surface of the collar of a substantially disc-shaped plate having a circular notch in the center for passing a cable through, with the cutting edge directed toward the center of the circular notch, and the cutting tool is attached so that its fixed position can be displaced. Rolls (usually 3 or more) that clamp the surface of the cable inserted into the notch and guide the movement of the entire device are movable in their fixed position and their free ends are oriented in the tangential direction of the cross section of the cable. A disc-shaped gear having a circular notch is attached concentrically to the disc-shaped plate on the back surface of the cutting mechanism mounted so as to be tilted, and the disc-shaped gear has a circular notch on the outer surface through which a cable can be inserted. The holder plate is brought into close contact with the disc-shaped plate and the holder plate are engaged so that they can rotate independently.
A motor is attached and fixed to the holder plate, and a gear driven by the motor is installed so as to mesh with the disc-shaped gear, so that the cutting mechanism can be rotated around the cable by the drive of the motor, and the cutting mechanism can be rotated around the cable by driving the motor. A bobbin for winding up cutting waste from the external semiconductive layer is provided, which is mounted so as to be rotated by a shaft that is rotatably inserted into the collar of the mechanism, so that the cable can be cut without damaging the finished surface of the cable, and the cutting waste can be wound up. I tried to remove it.

Next, an embodiment of the present invention will be described with reference to FIGS. 1 and 2.

The cutting mechanism is an improved version of the cutting mechanism shown in Utility Model Publication No. 52-3653, in which 1 is a substantially circular disc-shaped plate with a circular notch in the center, and 12 is integrally attached to the surface of the disc-shaped plate 1. 13 is a sliding groove for the roll fixing base carved in the disc; 14 is a long hole for positioning the roll fixing base; 2 is a roll for clamping the surface of the cable; 21 is the roll fixing base; A support shaft for supporting the rolls via ball bearings, the free end of which is inclined in the direction of the X-axis, that is, tangential to the cross section of the cable. Reference numeral 22 denotes an oval-shaped roll fixing base that fixes one end of the support shaft 21 and moves along the sliding groove 13. 23
is a bolt for positioning and fixing the fixing base 22 to the disc-shaped plate 1; this bolt engages with the elongated hole 14; 16 is a positioning scale. Reference numeral 24 denotes a presser bolt that engages with and fixes the roll fixing base 22 to the bolt 23 using a washer and a stop ring. 3 is a cutting tool with a cutting edge at the tip, 3
Numeral 2 is a bolt for positioning the cutting tool 3, and numeral 33 is a screw for finely adjusting the feed of the cutting tool.These rotate around the cable and constitute a cutting mechanism 10 that cuts a certain thickness of the cable coating. 4 is a cable consisting of a conductor 41, an insulating coating 42, and an outer semiconducting layer 44, and 43 is cutting waste of the outer semiconducting layer cut by the cutting tool 3. 55 is the cutting mechanism 10
A disk for rotatably engaging a holder plate 5, which will also be described later, to allow the cutting mechanism 10 to rotate around the cable by a motor 6, which will be described later, and a circular shape through which the cable 4 can be inserted through the center. It has a notch, and the circular notch has the same inner diameter as the circular notch of the holder plate plate 5. Reference numeral 56 denotes a recess concentrically carved on the surface of the disk-like plate 1 along the circumference of the circular cutout of the disk-like plate 1 in order to rotatably support the disk 55. 5 is a holder plate plate having a circular notch through which the cable 4 is inserted; this is the disk 5;
It is screwed at 5 (not shown) and is concentric with the disk-shaped plate 1, so that they engage with each other and can rotate independently. Furthermore, a gear 51 for driving the motor 6 and the cutting mechanism 10 is provided.
The motor 6 is driven to rotate the cutting mechanism 10 via the gears 51 and 52. Note that the gear 52 is provided with a circular notch through which the cable 4 is inserted. A handle 9 is attached to the side surface of the holder plate 5 to guide the movement of the motor 6.

In this embodiment, the cutting mechanism 10 and the holder plate 5 are engaged with each other via the disk 55, but they may be engaged with each other through other means such as a bearing inside a circular notch in the disk-shaped plate 1. Of course.

A mechanism for winding up cutting waste 43 wound around the surface of the cable 4 by a cutting waste winder 8 integrally attached to the cutting mechanism 10 is shown in FIG. 81 is a bobbin for winding up cutting waste, 82 is a shaft for rotatably inserting the bobbin 81 into the collar of the cutting mechanism 10, and 83 is a shaft with a penetration hole provided in the collar of the cutting mechanism 10. 82 is penetrated. 84
85 is a disc-shaped gear that is integrally fixed to one end of the shaft 82, and 85 is a disc-shaped gear that meshes with the gear 84 and is integrally fixed to the holder plate 5, and a circular cut through which the cable is to be inserted. It has a chip.

Next, the function of the present invention will be described.

First, move the roll fixing base 22 toward the surface of the cable 4 inserted perpendicularly to the circular notch in the center of the disc-shaped plate 1 until each roll 2 touches the surface of the cable and firmly clamps the surface. is slid along the sliding groove 13, and at this position, the bolt 23 and presser bolt 24 are adjusted to integrally fix the fixing base 22 to the collar portion of the tightening disc-shaped plate 1.

Next, the cutting edge of the tip of the cutting tool 3 is bitten into the external semiconductive layer 43 by a predetermined depth, and then the cutting tool 3 is fixed to the cutting tool fixing base with the screw 32. After setting in this way, when the cutting mechanism 10 is rotated by the motor 6, the cutting mechanism 10 rotates in the tangential direction of the cross section of the cable 4, performs cutting, and the handle 9 connects the cutting mechanism 10 and the motor 6 to the cable. , along the Y-axis.

When the cutting mechanism 10 rotates under the action of the motor 6 and the external semiconductive layer 44 is cut by the cutting tool 3, cutting waste 4 is generated.
3 is wound around the bobbin 81, and the bobbin 81 rotates together with the cutting mechanism 10 and rotates in the opposite direction to the cutting mechanism 10 due to the action of the gears 84 and 85, so the cutting waste 43 is wound around the bobbin 81. It will be taken away.

In the cutting waste take-up shown in Fig. 2 above, gear 8
4. The bobbin 81 rotates and winds up the cutting waste 43 due to the action of the gear 85, but the gear 84 and the gear 8
5 is removed, the shaft 82 is integrally fixed in the penetration hole 83 and rotated together with the cutting mechanism 10, and the bobbin 8
1 can of course wind up the cutting waste 43 without rotating.

In each of the above embodiments, the cutting waste 43 is wound up before it is wrapped around the cable 4, but it is of course possible to wind it up even after the cutting waste 43 is wound around the cable 4. Furthermore, if the cutting waste 43 is wrapped around the cutting waste already wrapped in the cutting direction, the cable 4 can be removed by returning the device in the opposite direction after cutting the external semiconductive layer. The cutting waste 43 wrapped around can be easily rolled up.

According to the present invention, the external semiconductive layer of the cable can be automatically cut by simply inserting the cable into the cutting mechanism and setting it as described above, and the cutting waste can also be easily removed by winding up. It requires less effort than manual work, and the cut surface of the cable becomes smoother, so there is no need to damage the cut surface of the cable when removing cutting debris.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway front view of the device of the present invention;
The figure is a sectional view of an embodiment of the device of the invention. DESCRIPTION OF SYMBOLS 1...Disc-shaped plate, 2...Roll, 3...Bite, 4...Cable, 42...Insulation coating, 43...
... Cutting waste, 44... External semiconductive layer, 5... Holder plate, 51, 52... Gear, 6... Motor, 8... Cutting waste winder, 10... Cutting mechanism.

Claims (1)

[Scope of utility model registration request] A cutting tool 3 is attached to the surface of the brim portion of a substantially disc-shaped plate 1 having a circular notch in the center for passing a cable through, with the cutting edge directed toward the center of the circular notch, and the fixed position of the cutting tool 3 is movable. A disc-shaped gear 52 having a circular notch is attached to the disc-shaped plate 1 on the back side of a cutting mechanism 10 in which a roll 2 that clamps the surface of a cable inserted into the notch is attached so that its fixed position can be changed. A holder plate plate 5 having a circular notch through which a cable can be inserted is closely attached to the outer surface of the disc-shaped gear 52, so that the disc-shaped plate 1 and the holder plate plate 5 can rotate independently. A gear 51 that engages with the holder plate 5 to attach and fix the motor 6 to the holder plate 5 and is driven by the motor 6.
is installed so as to mesh with the disc-shaped gear 52, so that the cutting mechanism 10 can be rotated around the cable by the drive of the motor 6, and a shaft 82 is rotatably inserted into the collar of the cutting mechanism 10. A cable insulation coating cutting device, characterized in that a bobbin for winding up external semiconductive layer cuttings is rotatably mounted.