JPH03128612A - Mobile cutter for cable external conductive layer - Google Patents

Abstract

PURPOSE:To easily and quickly peel an external conductive layer over an arbitrary length by inserting and fastening a cable in the hole of a main body and rotating a cutter, a revolution housing, and a feed roller. CONSTITUTION:A cable 25, the external conductive layer of which is to be peeled, is inserted into the hole of a fixation frame 1 and held and fastened with an appropriate external holder. When a revolution housing 7 is revolved round the cable 25 while a cutter 12 is rotated, the cutter 12 cuts and removes the external conductive layer of the cable 25. When a feed roller 62 is rotated in this operation the fixation frame 1 moves in the direction of the peripheral axis of the cable 25, therefore, the cutter 12 cuts and removes the external conductive layer of the cable 25 into spiral form. The mobility of the cutter makes it possible to easily and quickly peel the external conductive layer to arbitrary length.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a self-propelled cable external conductive layer cutting machine used for stripping the external conductive layer of various cables including CV cables. be.

(Prior art) For example, when connecting a Cv cable, after peeling off the outermost sheath, the outer conductive layer (about lam thick) is
must be stripped away.

In the past, such stripping operations were carried out by hand using the edges of the broken glass, or by using a hand tool that rotated a cutting tool around the cable.

(Problems to be Solved by the Invention) However, the method of using glass fragments is very primitive and requires a lot of effort, and there are problems in that it cannot be finished in a perfect circle. It is also unfavorable from the standpoint of work safety.

On the other hand, according to the latter, since the cutting width cannot be increased with the cutting tool, the number of rotations of the cutting tool around the cable increases, which is inefficient and creates streaks at the boundaries of each rotation of the cutting tool, making it impossible to obtain a smooth cutting surface. It was.

Furthermore, depending on these methods, if the length to be cut or removed is long, it is very troublesome and time consuming.

(Means for Solving the Problems) The present invention has been made in view of the above points, and provides a machine for peeling off the outer conductive layer extremely easily. The purpose is to provide a self-propelled cutting machine that is effective for cutting lengths up to 3 meters.

Regarding the specific configuration of the present invention, a hole through which the intended cable can be inserted is provided in the main body, and a feed roller is provided in the main body to rotate along the outer circumferential axis direction of the cable by an appropriate active source such as a motor. Provided for. Furthermore, a suitable cutter such as a plane cutter rotated by a suitable perturbation source such as a motor is rotatably provided on the revolving housing so as to be in contact with the outer periphery of the cable inserted through the hole in the main body.

The revolving housing is also provided on the main body so that the outer periphery of the cable can rotate freely, and a suitable motion source such as a motor for rotating the housing is provided on the main body.

(Function) Insert the cable whose external conductive layer is to be peeled off through the hole in the main body, grip the cable with an appropriate external gripping device,
Fix it. Then, when the revolving housing is rotated around the cable while rotating the cutter, the cutter cuts and removes the outer conductive layer of the cable. At this time, when the feed roller is rotated, the main body moves in the direction of the outer circumferential axis of the cable, so that the cutter eventually cuts and removes the outer conductive layer of the cable in a spiral shape.

(Example) Hereinafter, an example of this invention will be described with reference to the drawings. 1st
The figure shows a front view of the embodiment, and l is a fixed frame which is a main member constituting the main body, and a fixed cylinder 2 is fixed to the center of this fixed frame 1. Further, on the outer periphery of this fixed cylinder 2, an annular central gear 3, a revolution circle WI4, and two revolution disks 5.6 are arranged so that they can rotate freely as a unit with respect to the outer periphery of the fixed cylinder 2. It is set in. One end of the revolving housing 7 is fixed between the revolving discs 5 and 6.

As the details of the revolution housing 7 are shown in FIG.
A revolution shaft 8 is rotatably held in the eccentric part, and a transmission gear 9 is attached to one end of the revolution housing 7 inside the revolution shaft 8.
However, at the other end on the outside of the revolving housing 7, there is a center gear 3.
A revolving gear 10 that meshes with is fixed to each. The rotation of the transmission gear 9 is transmitted within the revolution housing 7 to a transmission gear 14 fixed to the cutter shaft 13 of the plain cutter 12 with another transmission gear 11 interposed therebetween.

Further, a cutting motor 15 is fixed to the fixed frame 1, and a fixed gear 17 that meshes with the central gear 3 is fixed to its output shaft via a reduction gear 16.

Therefore, when the cutting motor 15 rotates, the fixed gear 17,
Even when the center gear 3 and the revolution gear 10 sequentially rotate and the revolution shaft 8 is rotated (revolution) by a revolution motor 19, which will be described later, the revolution gear 10 continues to rotate (rotate). Therefore, the plane cutter 12 itself revolves while rotating.

It should be noted that a suitable approximately cylindrical safety cover 18 covers the outer periphery of the revolving housing 7 on the plane cutter 12 side.

Further, a revolving motor 19 is fixed to the fixed frame 1, a revolving drive chain wheel 21 is fixed to its output shaft 20, and a chain 23 is hooked between it and a chain gear 22 fixed to the revolving cylinder 4. It has been passed. Therefore, when the output shaft 20 of the revolution motor 19 rotates, the revolution cylinder 4 rotates, and the revolution housing 7 fixed thereto rotates (revolutions).

In addition, a torsion spring 24 is arranged between the revolving discs 5.6, and the entire revolving housing 7 is provided with a torsion spring 24.
It gives it a twist. This torsion of the revolving housing 7 is transmitted to the plain cutter 12, and as a result, the plain cutter 12 is constantly pressed against the surface of the target cable 25. Note that this torsion spring 24 can be released as appropriate, and can be released as necessary when inserting the target cable 25.

Furthermore, due to the above-mentioned torsional bias, the target cable 25
If an appropriate stop bar (not shown) is provided on the revolving housing 7 to a depth of 1 mm from the surface, the cutting depth of the plain cutter 12 is regulated, and it becomes possible to perform various cutting operations.

m on the revolving housing 7 side of the fixed frame 1.

Fixed disk 3 with a hole in the center via three support rods 31
2 is fixed, guide rollers 33 are provided at three locations on this fixed disk 32, and guide rollers 34 are also provided directly at three locations on the other side of the fixed frame l, each of which is inserted into the center hole of the fixed frame l. It is set so as to be in contact with the surface of the target cable 25.

The support structure of each of these guide rollers 33, 34 is the same (in order to make each structure clearer, in FIG. ) That is, each guide roller 33, 34 is rotatably supported by a guide roller bracket 35 so as to be rotatable along the axial direction of the target cable 25, and furthermore, this guide roller bracket 35 is rotatably supported by a guide roller bracket 35. , 2 facing each other fixed at three locations every 120' with the center hole of the fixed disk 32 as the center.
It is slidably mounted between the book bracket guide rails 36.36.

In addition, each guide roller bracket 35 has a screw thread 37.
One end of the threaded rod 37 is fixed, and the other end of the threaded rod 37 is screwed into the center of a miter gear 38. Each miter gear 38
To explain the support structure for the fixed disk 32 side, the rotary support members 40 and 41 are fixed between the fixed disk 32 and a fixed disk 39 fixed in parallel at an appropriate interval, and the screw supports 37 are fixed. The rotational support members 40, 41 and a spacer 42 disposed between them are loosely inserted, and the center of the miter gear 38 is screwed into the screw stud 37 between the rotational support member 40 and the spacer 42.

The bevel teeth of each miter gear 38 mesh with the bevel teeth of another miter gear 44 fixed to a handle shaft 43 that rotatably passes through the fixed disk 39. Further, a chain wheel 45 is fixed to each of these handle shafts 43, and a chain 46 is attached to each chain wheel 45. A guide roller adjustment handle 47 is fixed to one of the aforementioned handle shafts 43.

Therefore, when this guide roller adjustment handle 47 is rotated, each handle shaft 43 is rotated synchronously by the chain 46, and each miter gear 43.38 is also rotated synchronously, and as a result, each threaded rod 37 has the same length. Fixed disk 3
Go in and out towards the center of 2. That is, by rotating the guide roller adjustment handle 47, the guide rollers 3 at three locations are adjusted.
3 can be adjusted in and out at the same time with respect to the outer diameter of the target cable 25. Therefore, the target cable 25 can be supported and guided at the center of each fixed frame 1 or fixed disk 32, 39.

The support of the miter gear 38 on the fixed frame 1 side has the same structure as above, and the rotation support members 49 and 50 are fixed between the fixed frame 1 and the fixed disk 48 fixed in parallel with an appropriate interval. Then, the threaded rod 37 is loosely passed through the rotation support member 49, 50 and the spacer 51 disposed between them, and the center of the miter gear 38 is screwed into the threaded rod 37 between the rotation support member 49 and the spacer 51. Furthermore, the bevel teeth of each miter gear 38 mesh with the bevel teeth of another miter gear 53, which is fixed to a handle shaft 52 that rotatably passes through the fixed disk 48. A chain wheel 54 is fixed to each handle shaft 52, a chain 55 is attached to each chain wheel 54, and one of the handle shafts 52 has a guide roller adjustment handle (not shown). ) is fixed.

Next, the feed roller section will be explained with reference to FIG. 58 and 58 are fixed, and a slide plate 59 is inserted between the slide rails 58 and 58.
is slidably provided. And this slide board 5
Two brackets 60 and 61 are fixed on the top of the bracket 9, and a shaft 63 integrated with a feed roller 62 is rotatably supported between the brackets 60 and 61. Rotating motor 6
Fix 4.

Regarding the relationship between the waste drive motor 64 and the feed roller 62, the chain gear 6 is connected to the drive shaft 65 of the II drive motor 64.
6 is fixed, and a chain gear 67 is also fixed to the protruding end of the shaft 63 of the one feed roller 62, and both chain gears 66
．． A chain 68 is passed between 67 and the active motor rotor 4
The feed roller 62 is configured to rotate by the rotation of the feed roller 62. Further, one end of an adjustment screw 69 is fixed to the slide plate 59, and the other end of the adjustment screw 69 loosely passes through a rotation support fitting 70, which is fixed to the fixed plate 57 and has a concave cross section. The adjustment handle 71 is screwed into the adjustment screw 69 in the groove of the rotation support fitting 70.

Therefore, by appropriately rotating this adjustment handle 71, the slide plate 59 slides along the slide rail 58, and as a result, the feed roller 62, together with the drive motor 64, can be adjusted in and out at right angles toward the target cable 25. .

Further, the fixed disk 48 has a supporting metal fitting 72 having an abbreviated longitudinal section.
．． 73 are fixed to face each other at appropriate intervals, and the opposing elongated holes 74 .
A shaft 75 is passed between the shafts 74, and locking nuts 76 are screwed onto both projecting ends of the shaft 75, respectively. and the shaft 75 between the surface support fittings 72 and 73.
On the outer periphery of the reaction force receiver, a guide roller 77 and collars 78 and 79 are rotatably provided on both sides of the guide roller 77 so as to face the feed roller 62 and the target cable.

Therefore, by loosening the locking nut 76 and sliding the shaft 75 appropriately within the long hole 74, the reaction force receiver can adjust the guide roller 77 to move in and out perpendicularly to the surface of the target cable 25.

With the configuration described above, the feed roller 62 and the reaction force receiver can reach the target by adjusting the entrance and exit of the guide roller 77 appropriately and bringing the feed roller 62 into contact with the surface of the target cable 25 under an appropriate contact pressure. By rotating the feed roller 62 while the cable 25 is properly gripped, the entire device including the fixed frame 1 moves along the axial direction of the target cable 25.

Note that the feed roller 62 used in this embodiment has approximately V on the outer periphery.
The annular groove is cut in a shape to increase the area of contact with the cable surface, and the surface is made of a material with a high coefficient of friction, or is finished with such a material, so that the surface of the cable is It does not slip easily against the surface. Note that it is preferable that the surface of the guide roller 77 of the reaction force receiver is similarly processed to increase the coefficient of friction. By adopting such a configuration, a better feeding function can be ensured.

This embodiment is constructed as described above, and when used, the target cable 25 is connected to the fixed frame 1, the fixed disk 32.
After inserting it into the central hole such as No. 39, it is grasped with an appropriate grasping instrument. and guide roller adjustment handle 47. And the adjustment handle 71 is used to adjust the entrance and exit of the guide roller 33 and feed roller 62 according to the outer diameter of the target cable 25, respectively. After that, the cutting motor 15 and the revolution motor 19
, the plane cutter 12 rotates (revolutions) around the outer periphery of the target cable 25 while cutting the outer conductive layer on the outer periphery of the target cable 25.

Here, when the separation motor 64 is rotated, the fixed frame l
Since the entire body is moved along the axial direction of the outer circumference of the target cable 25 by the feed roller 62, the plain cutter 12 eventually cuts off the outer conductive layer on the outer circumference of the target cable 25 in a spiral shape.

(Effects of the Invention) According to the present invention, the cable for the purpose of stripping the external conductive layer is inserted into the hole of the main body, the cable is properly gripped and fixed on the outside, and then the cutter revolution housing and the feed roller are Just by rotating each cable, the outer conductive layer of the cable is automatically cut and removed.

Moreover, since it is self-propelled, it is possible to perform the stripping work of the external conductive layer extremely easily and quickly, and it is also possible to strip off any length6.Therefore, the length to be cut and removed can be up to 2 to 3 meters. This is particularly useful when

In addition, since the cutter is rotated around the cable while cutting to a constant depth, it is possible to cope with so-called deflection of the insulating layer.

[Brief explanation of the drawing]

Each figure relates to an embodiment of this invention,
1 is a front view, FIG. 2 is a front sectional view of the revolution housing, FIG. 3 is a sectional view taken along A-AIJA in FIG. 1, and FIG. 4 is a right side view. In the figure, 1 is a fixed frame, 2 is a fixed cylinder, 3 is a central gear, 4 is a revolving cylinder, and 5 and 6 are revolving disks. 7 is a revolution housing, 8 is a revolution axis, 9, 11.14 are transmission gears, IO is a revolution gear, 12 is a plain cutter, 13 is a cutter shaft, 15 is a cutting motor, 17 is a fixed gear, 18 is a safety cover, 19 is a revolving motor, 21 is a revolving separation chain wheel, 22, 54, 66, and 67 are chain gears, 23
．． 46, 55, 68 are chains, 24 is a torsion spring, 25 is a target cable, 31 is a support rod, 32.39.4
8 are fixed disks, 33 and 34 are guide rollers, 3
5 is a guide roller bracket, 36 is a bracket guide rail, 37 is a screw thread, 43 is a handle shaft, 47 is a guide roller adjustment handle, 56 is a support block, 57 is a fixed plate, 58 is a slide rail, 59 is a slide plate, 60
．． 61 is a bracket, 62 is a feed roller, 64 is a rotation motor, 69 is an adjustment screw, 71 is an adjustment handle, 72
73 are supporting metal fittings, and 77 is a reaction force receiver and a guide roller.

Claims (1)

[Claims] A hole through which the cable can be inserted is provided in the main body, a feed roller is provided in the main body to rotate along the outer circumferential axis direction of the cable by an appropriate drive source, and a cutter rotated by an appropriate drive source is inserted through the hole. A self-propelled cable, characterized in that the revolving housing is rotatably provided in contact with the outer periphery of the cable, and the revolving housing is provided in the main body so that the outer periphery of the cable can be rotated freely by an appropriate drive source. External conductive layer cutting machine.