JPH07148609A - Cable cutting device - Google Patents

Abstract

PURPOSE:To provide a cable cutting device which can easily and efficiently cut and process a cable for underground communication and the like at a work site. CONSTITUTION:A cable 3 is continuously moved to the longer direction by a moving mechanism 12. A cutting mechanism 38 provided with a cutting blades 50 and 51 capable of being opened/closed is installed in a moving route for the cable 3 in such a way that it can be moved in the moving direction of the cable 3. When the cutting blades 50 and 51 of the cutting mechanism 38 are opened, the cutting mechanism 38 is moved so as to be restored at an original position. When the cutting blades 50 and 51 are closed, the cutting mechanism 38 is permitted to be moved forward from the original position as the cable 3 is continuously moved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable cutting device used for cutting an underground communication cable, for example.

[0002]

2. Description of the Related Art Conventionally, for example, when an underground communication cable is deteriorated and it is necessary to replace it with a new one, the deteriorated cable is taken out and wound around a winding drum or the like on site. Then, the wound cable is brought back to a work place or the like, pulled out from a winding drum or the like, cut into a predetermined length, and discarded.

[0003]

However, in this conventional method, there is a problem that the work is troublesome and time consuming because the worker manually pulls out and cuts the cable. Further, since the cable is once wound around a winding drum or the like and brought back to a work place or the like, there is a problem that time loss occurs and work efficiency is poor.

The present invention has been made by paying attention to the problems existing in such conventional techniques. It is an object of the invention to provide a cable cutting device capable of easily and efficiently cutting a cable for underground communication or the like on site.

[0005]

In order to achieve the above object, in the invention of the cable cutting device according to claim 1,
A transfer mechanism that continuously transfers the cable in the longitudinal direction, and a cutting mechanism that is movably arranged in the cable transfer direction in the cable transfer path and that has an openable / closable cutting blade for cutting the cable. , When the cutting blade of the cutting mechanism is opened, the cutting mechanism is returned to the original position, and when the cutting blade is closed, the cutting mechanism is moved in one direction from the original position due to continuous transfer of the cable. And a return mechanism that allows the return.

The invention of the cable cutting device according to claim 2 is characterized in that it has a mechanism for setting the opening / closing timing of the cutting blade in accordance with the transfer amount of the cable for a predetermined length.
In the invention of the cable cutting device according to the third aspect, the rotating body that is rotated with the transfer of the cable and the rotating body that can be engaged with the rotating body are engaged each time the rotating body is rotated by a predetermined amount. It is characterized in that a detection mechanism for performing a predetermined operation upon detection of a match and a switching mechanism for switching the cutting mechanism by the detection mechanism to open and close are provided.

In the invention of the cable cutting device according to claim 4, a cylinder for opening and closing the cutting blade of the cutting mechanism is provided, and the switching mechanism interlocks with the transfer of the cable to supply the pressure fluid to the cylinder. It is a switching valve for intermittently switching.

In the invention of the cable cutting device according to the fifth aspect, a guide member for guiding the cable is provided on the feeding side of the cutting device, and the guide member is elastically supported so that the cutting pressure is excessive. It is characterized in that the guide member is configured to withdraw against the elastic force.

[0009]

In the cable cutting device according to the first aspect, the cable is continuously transferred in the longitudinal direction by the transfer mechanism.
The cutting blade of the cutting mechanism is opened and closed in the cable transfer path, whereby the cable is cut into a predetermined length. Then, when the cutting blade of the cutting mechanism is opened, the returning mechanism returns the cutting mechanism to the original position. Further, when the cutting blade is closed, the cutting mechanism is moved in one direction from the original position as the cable is continuously transferred. Therefore, for example, when removing an aged underground communication cable, the cable can be easily and efficiently cut while pulling out the cable at the site.

In the cable cutting device according to claim 2,
Every time the cable is transferred for a predetermined length, the cutting is performed.
In the invention of the cable cutting device according to the third aspect, the cutting operation is performed each time the cable is transported for a predetermined length, based on the rotation of the rotating body without using an electrical configuration.

In the invention of the cable cutting device according to the fourth aspect, the cable cutting operation is performed by utilizing the fluid pressure by switching the switching valve. In the invention of the cable cutting device according to the fifth aspect, when the cutting pressure applied to the cable is excessive, the excessive cutting pressure is released by retracting the guide member.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is embodied in a cable cutting device for an underground communication cable will be described below with reference to the drawings.

As shown in FIG. 2, the cable cutting device 1
Are loaded on, for example, a truck carrier 2 and installed adjacent to a manhole 4 of an underground communication cable 3. The cable pulling-out drum 5 is loaded on, for example, a bed 6 of another truck, and is adjacent to the cable cutting device 1 in the manhole 4.
Is installed above. The gold wheel 7 is installed in the manhole 4 to guide the cable 3.

When the cable pull-out drum 5 is rotated in the above state, the underground communication cable 3 is pulled out from the underground wiring portion onto the manhole 4 via the gold wheel 7. At the same time, the cable cutting device 1 cuts the cable 3 into a predetermined length while transferring the cable 3 in the longitudinal direction. Then, the cut cable 3 is loaded on the bed of the truck 2.

Therefore, the cable cutting device 1 will be described in detail. As shown in FIGS. 1 to 3, the frame 11 is installed on the bed of the truck 2. The transfer mechanism 12 is arranged on the upper surface of the rear part of the frame 11, and the cable 3 drawn out from the cable drawing drum 5 is transferred to the transfer mechanism 1 by the transfer mechanism 1.
2 is continuously transferred to the front side of the track 2 along the longitudinal direction.

That is, the guide roller 13 is rotatably supported on the upper surface of the rear end of the frame 11, and the guide roller 13 guides and guides the cable 3 to the front side of the track 2. The guide pole 14 is erected on the frame 11 adjacent to the front of the guide roller 13, and the guide pole 14 restricts the cable 3 to a predetermined lateral position.

The three transfer rollers 15 are rotatably supported on the frame 1 via a pair of bearings 16. Each transfer roller 15 is formed by stacking a plurality of gear-shaped plates 17 having different outer diameters, and an arcuate recess 15a that can fit the cable 3 is formed on the outer peripheral surface thereof. A large number of irregularities are formed on the outer peripheral surface of each transfer roller 15 due to the tooth profile of the gear-shaped plate 17, and the irregularities can prevent slippage with the cable 3.

The motor 18 is mounted at the rear end of the frame 11, and the rotation of the motor 18 causes the transfer roller 15 located at the rear end via the speed reducer 19, the sprocket 20, the drive chain 21 and the sprocket 22. Is rotated. Further, when the transfer roller 15 at the rear end is rotated, the plurality of sprockets 23 and the interlocking chain 2
The transfer rollers 15 located at the front end and the intermediate position are interlocked with each other via 4, and thereby a transfer force in the longitudinal direction is applied to the cable 3.

The pair of mounting frames 25 and 26 are the frame 1
A support plate 27 is rotatably mounted on the rear surface of the front mounting frame 25 via a bracket 28 and a support shaft 29. The screw rod 30 is erected on the upper surface of the front end of the support plate 27 so as to be rotatable relative to it, and the rear mounting frame 2 is so fitted as to be screwed with the screw rod 30.
A nut 31 is fixed to 6 so as to be rotatable around a vertical line. The operation handle 32 is attached to the upper end of the screw rod 30, and the rotation of the operation handle 32 causes the nut 3 to move.
The threaded rod 30 is moved up and down through 1 to rotate the support plate 27 up and down.

The swing plate 33 is swingably supported on the lower surface of the support plate 27 via a support shaft 34. The pair of pressing rollers 35 are rotatably supported on the lower surface of the rocking plate 33, and arc-shaped recesses 35 a that can fit the cable 3 are formed on their outer peripheral surfaces. With the downward rotation of the support plate 27 due to the rotation of the operation handle 32, the pressing roller 35 is pressed against the outer peripheral upper surface of the cable 3, and the cable 3 is pressed against the transfer roller 15.

As shown in FIGS. 1, 2, 4, and 6,
The cutting mechanism 38 is disposed on the front upper surface of the frame 11 in the transfer path of the cable 3 by the transfer mechanism 12. Then, while the cable 3 is continuously transferred to the front side of the truck 2 by the transfer mechanism 12, the cable 3 is cut into a predetermined length by the cutting mechanism 38 and is loaded on the bed of the truck 2.

That is, the pair of guide rails 39 are arranged on the upper surface of the frame 11 so as to extend in parallel in the front-rear direction, and the movable carriage 40 is movably supported between the guide rails 39 via a plurality of pairs of moving rollers 41. Has been done. The shock absorber 42 corresponds to the moving carriage 40 and is a frame 1
The movable carriage 40 is buffered to the original position at the rear end of the moving range by engaging with the shock absorber 42. The stopper 43 is provided on the upper surface of the front end of the frame 11, and the engagement with the stopper 43 regulates the front end position of the moving range of the moving carriage 40.

The guide roller 44 is rotatably supported on the upper surface of the rear end of the moving carriage 40, and the guide roller 44 guides and guides the cable 3 onto the moving carriage 40. A guide pipe 45 as a guide member is rotatably supported on the moving carriage 40 via a bracket 46 and a support shaft 47, and is formed by joining and fixing a pair of upper and lower semi-cylindrical bodies 45a and 45b to each other at opposite end edges. ing. Then, the cable 3 is inserted into the guide pipe 45 and guided and guided rearward.

A pair of springs 48 are interposed between the guide pipe 45 and the movable carriage 40, and the springs 48 elastically hold the guide pipe 45 at a predetermined height position. The movable cutting blade 51, which will be described later, is a fixed cutting blade 5.
The guide pipe 45 is moved downward toward 0.
If the cutting pressure is excessive when the cable 3 inserted into the cable is cut, the guide pipe 45 is retracted and rotated downward against the biasing force of the spring 48. As a result, the push-cut pressure applied to the cable 3 can be relieved, and the possibility that the cut surface of the cable 3 is pressed and deformed can be prevented.

The support frame 49 is erected obliquely on the upper surface of the front end of the movable carriage 40. The fixed cutting blade 50 is a support frame 49.
Is arranged between the lower ends of the blades and has an arc-concave blade portion 5 at its upper edge.
0a is formed. The movable cutting blade 51 is supported between the upper ends of the support frames 49 so as to be movable up and down, and the lower edge thereof has a circular arc concave blade portion 51a facing the blade portion 50a of the fixed cutting blade 50.
Are formed. The front end opening of the guide pipe 45 is held by the spring 48 at a position facing both the blade portions 50a and 51a.

The hydraulic cylinder 52 is arranged on the support frame 49, and its piston rod is connected to the movable cutting blade 51. Then, normally, the hydraulic cylinder 52 is retracted and operated, and the movable cutting blade 51 is held at an open position which is separated upward from the fixed cutting blade 50. Further, when the hydraulic cylinder 52 is operated to project, the movable cutting blade 51 is closed and moved downward toward the fixed cutting blade 50, and the cable 3 is cut between the two cutting blades 50 and 51.

As shown in FIGS. 1 and 4, the return mechanism 55.
Is installed between the movable carriage 40 and the frame 11. That is, the support rod 56 is the guide rail 3
It is arranged on the upper surface of the frame 11 via a mounting plate 57 so as to extend parallel to 9. The spring 58 is the support rod 5
It is wound around 6, and its one end is connected to the moving carriage 40, and the other end is connected to the frame 11. The urging force of the spring 58 urges the moving carriage 55 of the cutting mechanism 38 toward the original position at the rear end of the moving range.

Therefore, the movable cutting blade 5 of the cutting mechanism 38 is
When 1 is opened upward from the fixed cutting blade 50, both cutting blades 50 and 51 are separated from the cable 3, and the movable carriage 55 is moved and returned to the original position shown in FIG. 1 by the urging force of the spring 58. Further, the movable cutting blade 51 is a fixed cutting blade 50.
When it is closed downward toward the both sides, both cutting blades 50,
51 is engaged with the cable 3, the transfer force of the cable 3 is transmitted to the moving carriage 40, and the moving carriage 40 is moved to the left front from the original position against the biasing force of the spring 58.

As shown in FIGS. 1, 4, 5 and 7.
The cable length reading mechanism 61 is mounted on the frame 11 adjacent to the transfer mechanism 12. That is, the support roller 62 is rotatably supported by the lower end of the front mounting frame 25, and an arcuate recess 62a capable of fitting the cable 3 is formed on the outer peripheral surface thereof. A pair of lifting bodies 63
Is vertically movably supported on both sides of the front mounting frame 25, and a reading roller 64 is rotatably supported between the both lifting and lowering bodies 63.

The reading roller 64 is formed by stacking a plurality of gear-shaped plates 65 having different outer diameters, and an arc-shaped recess 6 which can fit the cable 3 on the outer peripheral surface thereof.
4a is formed. A large number of irregularities are formed on the outer peripheral surface of the reading roller 64 by the tooth profile of the gear-shaped plate 65, and the irregularities can prevent slippage with the cable 3.

A pair of screw rods 66 are erected on the upper surfaces of the two lifting bodies 63 so as to be rotatable relative to each other, and a nut 67 is fixed to the front mounting frame 25 so as to be screwed with these screw rods 66. There is. The operation handle 68 is attached to the upper end of each screw rod 66, and the rotation of the operation handle 68 causes the screw rod 66 to move up and down via the nut 67, so that the lifting body 6 is moved.
3 is moved up and down. As a result, the reading roller 64 moves up and down according to the outer diameter of the cable 3 and is joined to the outer peripheral surface of the cable 3.

The rotating shaft 69 is rotatably supported by the frame 11 via a bearing 70. The reading sprocket 71 is fixed to one end of the rotary shaft 69, and is connected to the reading roller 64 via a chain 72 and a sprocket 73. When the cable 3 is continuously rotated by the transfer mechanism 12, the reading roller 64 is contact-rotated in the clockwise direction in FIG. 1, and the reading sprocket 71 is rotated in the same direction via the sprocket 73 and the chain 72. It
The reading sprocket 71 is rotated once every time the cable 3 is transferred by a predetermined length.

As shown in FIGS. 1, 4, 7 and 8.
The switching mechanism 76 is mounted on the frame 11 adjacent to the reading sprocket 71 of the cable length reading mechanism 61. That is, the actuating lever 77 is fixed to the rotary shaft 69, and the actuating pin 78 is projectingly provided at the tip thereof. The reading sprocket 71 and the operating lever 77 constitute a rotating body. Timing adjustment bar 79
Is rotatably supported by the frame 11 via a bracket 80 and a support shaft 81, and one end thereof corresponds to the actuating pin 78.

The switching valve 82 is arranged at the front end portion of the frame 11, and the switching valve 82 switches the supply of the pressure oil as the pressure fluid to the hydraulic cylinder 52 of the cutting mechanism 38. The switching lever 83 is rotatably supported on the switching valve 82, and the tip of the switching lever 83 is connected to the connecting rod 8.
It is connected to the timing adjusting bar 79 via the No. 4.
The spring 85 is stretched between the switching lever 83 and the frame 11, and the urging force of the spring 83 causes the switching lever 83 and the timing adjusting bar 79 to be normally arranged at the positions shown by the solid lines in FIG. The timing adjustment bar 7
A cable detecting mechanism for detecting the engagement of one rotation of the rotating body is constituted by 9, the connecting rod 84 and the like.

Then, with the switching lever 83 and the timing adjusting bar 79 arranged in the solid line position, the switching valve 82 is switched to the position for immersing the hydraulic cylinder 52, and the movable cutting blade 51 is fixed. Is held in an open position spaced from. In addition, each time the cable 3 is transported for a predetermined length and the reading sprocket 71 is rotated once, the operating pin 78 on the operating lever 77 engages with the timing adjusting bar 79, and the switching lever 83 and the timing adjusting bar. 79 is rotated to the position shown by the chain line in FIG. As a result, the switching valve 82 is switched from the above position, the hydraulic cylinder 52 is projected, and the movable cutting blade 51 is closed toward the fixed cutting blade 50.

Next, the operation of the cable cutting device of this embodiment constructed as described above will be described. By the way, when removing the old underground communication cable 3,
As shown in FIG. 2, the cable cutting device 1 and the cable drawing drum 5 loaded on the truck bed 2 and 6 are
It is installed adjacently above the manhole 4. In this state,
When the cable pull-out drum 5 is rotated, the underground communication cable 3 is continuously pulled out from the underground wiring location onto the manhole 4 via the gold wheel 7.

On the other hand, when the cable cutting device 1 is operated, the cable 3 is continuously transferred in the longitudinal direction by the rotation of the transfer roller 15 of the transfer mechanism 12. And FIG.
As shown in, when the movable cutting blade 51 of the cutting mechanism 38 is arranged at the open position separated from the fixed cutting blade 50, the moving carriage 40 is moved to the original position by the biasing force of the spring 58 of the returning mechanism 55. Has been done. Therefore, the cable 3 is transferred between the cutting blades 50 and 51 in the open state to the front side of the truck 2 without any trouble.

In this state, when the cable 3 is transferred by a predetermined length, the reading roller 64 of the cable length reading mechanism 61.
The contact sprocket 71 makes one rotation of the reading sprocket 71. As a result, the switching valve 82 of the switching mechanism 76 is switched, the hydraulic cylinder 52 of the cutting mechanism 38 is projected, and the movable cutting blade 51 is closed toward the fixed cutting blade 50 side.

Along with this, both cutting blades 50, 51 engage with the outer peripheral surface of the cable 3, the transfer force of the cable 3 is transmitted to the moving carriage 40, and the moving carriage 40 resists the biasing force of the spring 58. Move from the original position by pushing it to the left.
Then, during the movement of the movable carriage 40, the cable 3 is cut into a predetermined length by the both cutting blades 50 and 51. At this time, the guide pipe 45 is rotated downward against the biasing force of the spring 48, and the push-cut pressure applied to the cable 3 is relieved. Therefore, it is possible to prevent the cut surface of the cable 3 from being pressed and deformed.

After the cable 3 is cut in this way,
The cutting surface of the cable 3 is engaged with the cutting blades 50 and 51 in the closed state, and the transfer force of the cable 3 is transmitted to the moving carriage 40. Therefore, the movable carriage 40 continues to move in the transfer direction of the cable 3 against the biasing force of the spring 58. Further, along with the movement of the movable carriage 40, the cut cable 3 is pushed and moved in front of the truck 2, and is dropped and loaded on the cargo bed of the truck 2.

After that, the operating lever 77 of the switching mechanism 76 is rotated by a predetermined angle, and the operating pin 78 is separated from the timing adjusting bar 79. As a result, the switching valve 82 is switched, the hydraulic cylinder 52 is retracted, and the movable cutting blade 51 is opened to a position separated from the fixed cutting blade 50. At this time, since both cutting blades 50 and 51 are separated from the tip end surface of the cable 3, the moving carriage 55 is moved and returned to the original position shown in FIG. 1 by the biasing force of the spring 58. on the other hand,
The cable 3 continues to move forward between the two cutting blades 50 and 51 separated from each other, but at this time, the cutting end face of the cable 3 is prevented from being deformed by the action of the spring 48, and the circular shape is maintained. Cable 3 has double cutting blades 5
It smoothly moves forward without being caught by 0,51.

By repeating the above operation, the underground communication cable 3 is continuously cut into a predetermined length while being pulled out from the underground wiring portion. Therefore, it is not necessary to wind the underground communication cable 3 around a winding drum or the like once and bring it back to a work place or the like, and then to cut it to a predetermined length while pulling it out from the winding drum or the like. can do.

Further, in this embodiment, the transfer length of the cable 3 is mechanically read by the cable length reading mechanism 61, and every time the cable 3 is transferred by a predetermined length, the switching mechanism 76 causes the cutting mechanism 38 to move. The hydraulic cylinder 52 is switched. Therefore, unlike the configuration in which the transfer length of the cable 3 is detected by an optical sensor or a touch sensor, a power source for the sensor is not required, and the cable 3 can be used outdoors without any trouble.

Furthermore, the cable cutting device 1 of this embodiment
In the above, the pressing roller 35 of the transfer mechanism 12 and the reading roller 64 of the cable length reading mechanism 61 are set to the operation handle 3
The position can be adjusted up and down by operating 2,68. Therefore, even when the outer diameter of the cable 3 changes, it is possible to easily deal with the change by a simple adjustment operation.

Moreover, the cable cutting device 1 of this embodiment
When the operating speed of the apparatus is desired to be changed, the transfer speed and the cutting speed of the cable 3 can be easily changed by changing the rotation speed of the motor 18 of the transfer mechanism 12. Further, when it is desired to change the cut length of the cable 3, the reading sprocket 71 or the transmission sprocket 73 of the cable length reading mechanism 61 is replaced with one having a different outer diameter dimension, and the reduction ratio thereof is adjusted. It can be easily dealt with by changing it.

[0046]

Another Embodiment Next, another embodiment of the present invention will be described with reference to FIGS. Now, this embodiment differs from the above-mentioned embodiment in the return mechanism 55. That is, in the return mechanism 55 of this embodiment, the pair of sprockets 91 and 92 are rotatably arranged near both ends of the guide rail 39. Chain 93 has both sprockets 9
It is hung between 1 and 92, and a part thereof is connected to the moving carriage 40 of the cutting mechanism 38.

The motor 94 uses the one sprocket 91.
And is connected to the sprocket 91 via the one-way rotation clutch 95. When the cable cutting device 1 is in operation, the motor 94 is always rotated in the clockwise direction in FIG. 9, and the rotational force is transmitted to the sprocket 91 via the one-way rotation clutch 95, so that the movable carriage 40 can be rotated. A return movement force toward the position side is given.

Therefore, the movable cutting blade 51 is closed toward the fixed cutting blade 50 while the moving carriage 40 of the cutting mechanism 38 is placed at the original position, and the transfer force of the cable 3 is moved by the moving carriage 40. Is transmitted to the unidirectional rotary clutch 95, the operative connection is disengaged. Then, due to the transfer force of the cable 3, the moving carriage 40 is pressed and moved leftward from the original position.

Further, the cable 3 is provided between the two cutting blades 50 and 51.
When the movable cutting blade 51 is released in a direction away from the fixed cutting blade 50 after being cut into a predetermined length, and the transfer force of the cable 3 is not transmitted to the moving carriage 40, the one-way rotating clutch 95 operates. It becomes the operation connection state. As a result, the rotation of the motor 94 is transmitted to the sprocket 91 via the one-way rotation clutch 95, and the moving carriage 40 is moved back toward the original position.

The present invention is not limited to the configuration of the above-described embodiment, and may be embodied by making the following arbitrary changes without departing from the spirit of the present invention. (1) To configure the operation timing of the movable cutting blade 51 by an electric sensor. (2) Use the cable cutting device 1 of the present invention to cut cables other than underground communication cables. (3) The movable cutting blade 51 should be driven by another actuator such as an air cylinder or a motor.

[0051]

Since the present invention is configured as described above, it has the following excellent effects.

That is, according to the present invention, a cable for underground communication or the like can be easily and efficiently cut off at the site, and the work can be relieved from a lot of troublesome work. Further, according to the present invention, the cutting blade can be intermittently opened and closed in conjunction with the transfer of the cable, and the cable can be automatically and accurately cut into a predetermined length, and the post-treatment can be performed. Is easy. Further, according to the present invention, even if the cable cutting device is installed outdoors, the device can be operated without any trouble. In addition, according to the present invention, it is possible to prevent deformation of the cut end surface of the cable and prevent adverse effects on transportation after cutting.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a cable cutting device embodying the present invention.

FIG. 2 is a partial cross-sectional view showing a state in which an underground communication cable is cut by using the cable cutting device.

FIG. 3 is an enlarged cross-sectional view taken along the line AA of FIG.

FIG. 4 is an enlarged cross-sectional view taken along the line BB of FIG.

5 is an enlarged cross-sectional view taken along the line CC of FIG.

6 is a partial enlarged cross-sectional view taken along the line DD of FIG.

FIG. 7 is a partial enlarged cross-sectional view taken along the line EE of FIG.

8 is a partially enlarged cross-sectional view taken along the line FF of FIG.

FIG. 9 is a front view of a main portion showing another embodiment of the present invention.

10 is a partial cross-sectional view taken along the line GG in FIG.

[Explanation of symbols]

1 ... Cable cutting device, 3 ... Underground communication cable, 11 ...
Frame, 12 ... Transfer mechanism, 15 ... Transfer roller, 18 ...
Motor, 35 ... Pressing roller, 38 ... Cutting mechanism, 39 ... Guide rail, 40 ... Moving carriage, 50 ... Fixed cutting blade, 51
... movable cutting blade, 52 ... hydraulic cylinder, 55 ... return mechanism,
58 ... Spring, 61 ... Cable length reading mechanism, 64 ... Reading roller, 71 ... Reading sprocket, 76 ... Switching mechanism, 7
9 ... Timing adjusting bar, 82 ... Switching valve, 83 ... Switching lever.

Claims (5)

[Claims] 1. A transfer mechanism for continuously transferring a cable in a longitudinal direction, and a cutting blade which is movably arranged in a cable transfer direction in a cable transfer direction and which can be opened and closed to cut the cable. And the cutting mechanism of the cutting mechanism, when the cutting blade of the cutting mechanism is opened, the cutting mechanism is returned to the original position, and when the cutting blade is closed, the cutting mechanism moves in one direction from the original position as the cable is continuously transferred. A cable cutting device, comprising: a return mechanism that allows movement. 2. The cable cutting device according to claim 1, further comprising a mechanism for setting an opening / closing timing of the cutting blade in accordance with a predetermined length transfer amount of the cable. 3. A rotating body that is rotated with the transfer of a cable, and is engageable with the rotating body. Whenever the rotating body is rotated by a predetermined amount, engagement is detected to perform a predetermined operation. The cable cutting device according to claim 1 or 2, further comprising: a detection mechanism that performs the detection and a switching mechanism that is switched by the detection mechanism to open and close the cutting mechanism. 4. A switching valve provided with a cylinder for opening and closing a cutting blade of the cutting mechanism, wherein the switching mechanism interlocks with the transfer of the cable and intermittently switches the supply of the pressure fluid to the cylinder. The cable cutting device according to claim 3, wherein 5. A guide member for guiding the cable is provided on the feeding side of the cutting device, and the guide member is elastically supported, and when the cutting pressure is excessive, the guide member retracts against the elastic force. The cable cutting device according to claim 4, wherein the cable cutting device is configured as described above.