JPH0865850A - Cable stripping device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a cable stripping device that does not require adjustment work every time the cable diameter changes and peels a continuous cable sheath in accordance with a change in the cable diameter. [Structure] Pinch rollers 1a, 1b for pinching cables
Is provided with an elastic clamping member 19 for applying an elastic force, and a cable pressing guide 21 for pressing and guiding the cable is provided with an elastic pressing member 27 for applying the cable pressing elastic force to cut the sheath of the cable sandwiched by the pinch rollers. By providing the elastic cutting member 37 for applying the sheath cutting elastic force to the rotary blade 31, the cable automatically adapts to the cable outer diameter even if the outer diameter of the cable to be fed is changed or adjustment work is not performed. It enables continuous peeling work of the sheath.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a device for stripping a cable sheath.

[0002]

2. Description of the Related Art A conventional cable sheath stripping machine is shown in FIG.
As shown in FIG. 2, the cable A to be fed is sandwiched from both sides for peeling, and the paired left and right cable feed pinch rollers 51, 51 are provided for feeding the peeled cable sheath and cable core backward. Both pinch rollers 51, 5
A pinch roller adjusting handle 52 for adjusting the interval of 1,
The pair of upper and lower rotary blades 53, 53, which are vertically spaced from each other so that the blade edge bites into the sheath of the cable A sandwiched between the pinch rollers 51, 51, and the blade edge of the rotary blade 53 are Rotating blade adjustment handle 54 for adjusting the depth of cutting into the cable sheath, and both pinch rollers 51, 51
A cable pressing guide 55 for pressing the upper surface of the cable A fed toward the space, and the cable pressing guide 5
The pressing guide adjusting handle 56 for adjusting the pressing position of the cable 5 with respect to the cable is installed on the pedestal 50, and the upper surface of the cable A to be fed is pressed by the cable pressing guide 55 to be driven by the motor.
Rotary blades 53, 53 sandwiched between 1, 51 and driven by a motor from above and below this cable A to the cable sheath.
Make a cut in the cable sheath by biting the blade edge of
Connect the cable sheath and cable core to the pinch roller 5
At 1, 51, it is sent out to the rear to separate the cable core and the cable core that are torn to the left and right.

Further, a separation spring for separating the two rollers from each other is provided between a fixed roller and a movable roller, and the distance between the two rollers of the roller pair is adjusted by a handle to adjust each angle of the opposing rollers. There is known a coated wire stripping machine disclosed in JP-A-57-6511, in which a cabtire cable or the like is sandwiched between the edges and a rubber coating or the like is cut at the corner edge of each roller. Also, a cutter for making a cut in the coating layer and a fiber pressing blade are respectively housed in a housing hole together with a spring.
No. 4 peeling device for coated optical fiber is known.

[0004]

The cable whose cable sheath is peeled off by the conventional peeling machine shown in FIG. 9 has various outer diameters of 20 mm to 50 mm. Each time the outside diameter of the cable to be processed changes, the position where the cable holding guide 55 hits the upper surface of the cable is adjusted by the holding guide adjusting handle 56 so as to match the changed cable diameter, and the left and right cable feed pinch rollers 51 are adjusted. , 51 must be adjusted by the pinch roller adjustment handle 52, and the blade tip intervals of the upper and lower rotary blades 53, 53 must be adjusted by the rotary blade adjustment handle 54, and each of these adjustment handles must be manually operated. It is necessary to feed various cables with different outer diameters to the peeling machine one after another and process them continuously and efficiently. It is difficult to manage, and the work to make fine adjustments to adapt to the various cable diameters, which vary from 20 mm to 50 mm, requires skill and cannot be performed quickly, resulting in poor efficiency. There is.

In the device disclosed in the above-mentioned patent application, the interval between the two sets of rollers must be adjusted by the handle operation every time the outer diameter of the cable changes. It cannot be used for cables whose outer diameter changes significantly from 20 mm to 50 mm.

The present invention solves the above-mentioned problems and eliminates the need for a gap adjusting work by an adjusting handle operation which requires a skillful manual work even if the outer diameter of the cable is largely changed to 20 mm to 50 mm, and the outer diameter of the cable is reduced. It is an object of the present invention to provide a cable peeling device capable of continuously and efficiently peeling the cable sheath in accordance with the change of

[0007]

In order to achieve the above object, the cable stripping device of the present invention is a pair of left and right cable feeds that sandwiches the cable A fed for peeling the cable sheath from both sides and feeds it out. Pinch rollers 1a, 1
b, the elastic pinching member 19 which adds elastic force to the cable pinching force of both the pinch rollers 1a and 1b, and the pair of left and right movable bases 4a and 4b which respectively support the cable feeding pinch rollers 1a and 1b. Both movable bases 4 connected to
A link device 10 for symmetrically moving a and 4b toward and away from each other, a cable pressing guide 21 for pressing the fed cable A and guiding it between the pinch rollers 1a and 1b, and this cable pressing Guide 21
Retaining member 2 that adds resilience to the cable holding force of
7, an upper rotary blade 31 and a lower rotary blade 39 that split the sheath of the cable A sandwiched between the pinch rollers 1a and 1b, and an elastic cutting member 37 that adds a sheath cutting elastic force to the rotary blade. It is configured by.

[0008]

The cable A fed for peeling off the cable sheath has its upper surface pressed by the cable pressing guide 21 and is guided between the cable feeding pinch rollers 1a and 1b. The two pinch rollers 1a and 1b rotate and sandwich the cable A between the two rollers. In the cable A sandwiched between the rotating pinch rollers 1a and 1b, the blade tips of the rotary blades 31 and 39 cut into the cable sheath on both the upper and lower surfaces to cut the cable sheath. The split sheath and cable core are sent to the opposite side by the two pinch rollers 1a and 1b which are rotating while sandwiching the split sheath and cable core, and the cable sheath S and the cable core C are separated.

The elastic pressing member 27 for applying an elastic cable pressing force to the cable pressing guide 21 is
Even if the outer diameter of the fed cable A varies in the range of 20 mm to 50 mm, the cable pressing guide 21 is elastically pressed against the cable, so that the position of the pressing guide 21 changes the cable diameter. Even if the adjustment handle of the pressing guide 21 is not rotated for each adjustment, the upper surface of the cable is elastically pressed by elastically adapting to the changed cable outer diameter.

The link device 10 is connected to the left and right cable feed pinch rollers 1a and 1b and is connected to both pinch rollers 1a and 1b.
By symmetrically moving 1b toward and away from each other, both sides of the cable are pinched accurately so that the center of the cable A sandwiched between the pinch rollers 1a and 1b is not displaced.

The elastic pinching member 19 which applies an elastic cable pinching force to the cable feed pinch rollers 1a and 1b has an outer diameter of the cable A to be fed of 20 mm to
Even if it is changed to 50 mm, both pinch rollers 1a and 1b will pinch the cable A with elasticity, so even if the pinch roller adjustment handle is not rotated to adjust the distance between both pinch rollers each time the cable diameter changes, the changed cable Elastically adapts to the outer diameter and elastically clamps both sides of the cable.

The elastic cutting member 37 for applying elastic cable sheath cutting force to the upper rotary blade 31 and the lower rotary blade 39, which splits the upper and lower surfaces of the cable fed with the sheath of the cable A, When the outer diameter of the cable to be fed changes from 20 mm to 50 mm, the cutting force of the rotary blade on the cable sheath adapts elastically. Therefore, the rotary blade adjustment handle is turned to rotate the rotary blade against the cable sheath every time the cable diameter changes. Even if the position of the blade edge, that is, the cutting depth is not adjusted, the cutting depth of the rotary blades 31, 39 to the cable sheath becomes an appropriate depth by elastically adapting to the changed cable outer diameter.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.
1 and 2 show a device according to an embodiment of the present invention in a perspective view and a schematic front view, and FIGS. 3 to 8 show the respective parts separately for convenience of explanation. The cable stripping device of the present invention is shown in FIG.
As shown in FIG. 2, the pinch roller device 1, the pressing guide device 20, and the rotary blade device 30 are provided, and the symmetrical movement link device 10 is provided.

The pinch roller device 1 includes a pair of left and right cable feed pinch rollers 1a and 1b for sandwiching the cable A fed for peeling the cable sheath from both sides and sending it to the opposite side of the roller, and the pinch roller 1a. 1b
Of the cable A to be fed, and a pinch roller adjusting handle 8 for adjusting the distance between the two, a link device 10 for symmetrically moving both pinch rollers 1a, 1b in the approaching and separating directions when the pinch roller adjusting handle 8 is turned. Outer diameter is 20
Both pinch rollers 1a, even if various changes in the range of mm to 50 mm,
The pinch rollers 1a and 1b are configured by an elastic pinching member 19 which applies an elastic cable pinching force to the pinch rollers 1a and 1b so that the cable pinching force of 1b flexibly adapts to the changed cable outer diameter.

The pressing guide device 20 presses the upper surface of the cable A to be fed, and both the pinch rollers 1a and 1b.
Cable holding guide 21 that guides between the
A pressing guide adjusting handle 25 for adjusting the cable pressing position of the cable pressing guide 21 and a cable in which the cable pressing force of the cable pressing guide 21 is changed even if the outer diameter of the cable A to be fed is changed to 20 mm to 50 mm. It is configured by an elastic pressing member 27 that applies an elastic cable pressing force to the cable pressing guide 21 so as to elastically adapt to the outer diameter.

The rotary blade device 30 is installed above and below the cable A sandwiched between the pinch rollers 1a and 1b, and is movable in the vertical direction to cut the cable sheath on both the upper and lower sides. The upper rotary blade 31 and the lower rotary blade 39, the rotary blade adjusting handle 35 for adjusting the distance between the upper rotary blade and the lower rotary blade, and the cable A to be fed rotates even if the outer diameter of the cable A changes to 20 mm to 50 mm. An elastic cutting member 37 that applies elastic cable sheath cutting force to the rotary blade so that the cutting force of the blade with respect to the cable sheath elastically adapts to the changed cable outer diameter.

The cable feed pinch rollers 1a and 1b of the pinch roller device 1 are arranged as shown in FIG.
Is a state in which the symmetrical movement link device 10 is removed for the sake of clarity, and a schematic illustration of the pinch roller device 1 is shown).
The vertical shaft portions 2a, 2b of each pinch roller 1a, 1b are supported by a pair of left and right shaft support portions 3a, 3b so that the pair of cable feed pinch rollers 1a, 1b rotate in the same horizontal plane. The parts 3a and 3b are installed on a pair of left and right movable bases 4a and 4b, respectively.
a and 4b are slidably mounted on the guide rail 6 (see FIG. 1) on the pedestal support table 5 so that the movable bases 4a and 4b can slide on the guide rail 6 in the approaching direction and the separating direction. Install movably.

To move the movable bases 4a and 4b toward and away from each other, the screw rod 7 is screwed into one of the movable bases 4a and 4b, for example, the lower female screw portion 9 (FIG. 3) of the movable base 4a. In order to move the movable base 4a on the base receiving table 5 by rotating the pinch roller adjusting handle 8 attached to the screw rod 7, and to move the other movable base 4b symmetrically with the movement of the one movable base 4a. By the table 5
The distance between the upper movable bases 4a and 4b, that is, the distance between the left and right pinch rollers 1a and 1b can be adjusted toward and away from each other. Reference numeral 1'denotes a mount on which the pinch roller device 1 is installed.

One movable base 4 on the base support table 5
The movement of "a" and the symmetrical movement of the other movable base 4b are performed by a pantograph type symmetrical movement link device 10. The pantograph-type symmetric movement link device 10 is as shown in FIG.
A base 11 at the lower end, link rods 12, 12 and 13a, 13b of the same length, and a pivot pin 14 form a pantograph-type link mechanism, and long holes 15, 15 are provided at the upper ends of the link rods 13a, 13b. The pair of left and right movable bases 4a,
The long holes 15 and 15 are fitted to the pins 17 and 17 of the link connecting plates 16a and 16b provided on the front surface of 4b, and the upper ends of the symmetrical movement link devices 10 are connected to the left and right movable bases 4a and 4b. To do. 15 'is an elongated hole provided in the base 11.

The link device 10 for symmetrical movement as described above.
One of the movable bases 4a and 4b connected to each other, for example, the movable base 4
When a screw rod 7 is screwed on a, a pinch roller adjusting handle 8 is attached to the screw rod 7, and one of the movable bases 4a is moved on the base support table 5 by turning the handle 8, the movable base 4a is attached to the movable base 4a. The link rod 13a of the linked link device 10 moves and the other link rod 13b moves the link rod 13a.
Since the movable base 4b moves symmetrically with respect to a and the other movable base 4b moves symmetrically with respect to the movement of the movable base 4a, when the pinch roller adjusting handle 8 is turned, both movable bases 4a and 4b move symmetrically toward and away from each other. do.

The movable bases 4a and 4b, which move toward and away from each other on the base support table 5, are elastically connected by the elastic pinching member 19 shown in FIGS. The elastic pinching member 19 is provided on the left and right pinch rollers 1a, 1b.
The pinch rollers 1a and 1b are provided with pinching elasticity so as to elastically pinch the cable A sandwiched therebetween, and as shown in FIG.
An elastic pinching member 19 made of a tension spring is attached between the side plates 18a and 18b provided on the opposite side surfaces of the b plate to elastically pull between the pinch rollers 1a and 1b installed on both movable bases 4a and 4b. Adds elasticity by sandwiching each other. The elastic pinching member 19 may be composed of an air cylinder or the like instead of the spring.

The pinch roller device 1 has a drive motor M provided with cable feed pinch rollers 1a and 1b.
The cable A that is driven and rotated by (FIG. 2) is continuously sandwiched between both pinch rollers 1a and 1b while being rotated, and is sent to the opposite side of the rollers. The two pinch rollers 1a and 1b can be moved and adjusted in the front-back direction, that is, in the length direction of the cable sandwiched between the two rollers.
4b may be provided in the front-rear direction with a movement adjusting screw rod having the same mechanism as the screw rod 7 and the adjusting handle 8 and a rotating handle thereof.

The pressing guide device 20 for pressing the fed cable A and guiding it between the pinch rollers 1a and 1b is shown in FIG.
And the pinch rollers 1a and 1b are omitted.
As shown in FIG. 6 and FIG. 6 (FIG. 6 is a schematic view seen from the right side of FIG. 1), a plate-shaped cable pressing guide 21 for pressing the upper surface of the cable A is attached to the support rod 22, and the support rod 22 is vertically movable. It is attached to the support portion 23, and the vertically movable support portion 23 is vertically movably fitted and inserted into a mounting cylinder portion 24 (a part of the cylinder wall is broken to show the inside of the cylinder), and a pressing guide is provided on the upper end of the mounting cylinder portion 24. The adjustment handle 25 is attached, and an elastic holding member 27 made of a compression spring is installed between the handle lower portion 26 of the holding guide adjustment handle 25 and the vertically movable support portion 23. Reference numeral 28 denotes a cable introduction end edge in which the plate body leading edge of the cable pressing guide 21 is bent upward. The elastic pressing member 27 may be composed of an air cylinder or the like instead of the spring.

Reference numeral 29 shown in FIGS. 5 and 6 is a plate-shaped cable placing table provided below the cable holding guide 21 so as to be opposed thereto, and the cable introduction end edge of the plate body is bent downward. . The cable A to be fed is placed and placed on the upper surface of the cable placing table 29, the upper surface of the cable is held by the cable holding guide 21, and is fed while being guided between the pinch rollers 1a and 1b.
Reference numeral 20 'is a frame to which the pressing guide device 20 is attached.

The above-mentioned cable feed pinch rollers 1a, 1
The rotary blade device 30 that cuts through the sheath of the cable A sandwiched between b is composed of the rotary blade device 30 and the pinch roller 1a.
As shown in FIG. 7, which omits the other components, the upper rotary blade 31 is vertically movable just above the center position of the left and right cable feed pinch rollers 1a and 1b, and is installed opposite to the lower rotary blade 31. The lower rotary blade 39 is formed. The upper rotary blade 31 has its rotary shaft 32 mounted on the vertical movable shaft support 3
3 is vertically movably supported, and the vertically movable shaft support portion 33 is vertically movably fitted into a mounting cylinder portion 34 (the upper half of the cylinder wall is broken to show the inside of the cylinder), and the upper end of the mounting cylinder portion 34 is mounted. A rotary blade adjusting handle 35 is attached to the above, and an elastic cutting member 37 formed of a compression spring is installed between the handle lower portion 36 and the vertically movable shaft support portion 33.

In the upper rotary blade 31, when the rotary blade adjusting handle 35 is rotated, the handle lower portion 36 presses the elastic cut member 37 downward, and this elastic pressing force elastically presses the vertical movable shaft support portion 33. The upper rotary blade 3
1 is elastically pressed downward and cuts into the sheath on the upper surface of the cable A. The elastic cutout member 37 may be composed of an air cylinder or the like instead of the spring. 30 'is a frame to which the upper rotary blade 31 is attached.

The lower rotary blade 39, as shown in FIG.
A rotary blade bearing 38 attached to the gantry 1'is installed directly below the above rotary blade 31 with a cable insertion interval. The bearing 38 of the lower rotary blade 39 may be fixed to the gantry 1 ', or may be attached to the gantry 1' so that the vertical position can be adjusted by an appropriate vertically movable support device. Both the upper and lower rotary blades 31 and 39 are driven and rotated by a drive motor M (FIG. 2) provided appropriately. When the cable A is inserted between the upper and lower rotary blades 31 and 39, the blade tips of the rotary blades 31 and 39 cut into the cable sheath from both upper and lower sides thereof, and the cable sheath is torn while rotating.

The upper and lower rotary blades 31 and 39 are, if necessary, as shown in FIG.
In order to make the cutting depth D constant with respect to
To form.

The cable feed pinch roller 1 described above is used.
Drive motor M for rotating a and 1b (FIG. 2) and drive motor M for rotating rotary blades 31 and 39 (FIG. 2)
In place of using one drive motor M in common as shown in FIG. 2 to drive and rotate by each rotation transmission mechanism, separate drive motors for pinch rollers and rotary blades may be provided.

As shown in FIGS. 1 and 2, the cable stripping device of the present invention constructed as described above, when the cable A is fed onto the cable mounting table 29, the upper surface of the cable is guided by the cable pressing guide. 21 presses and guides between the cable feed pinch rollers 1a and 1b. The cable pressing guide 21 for pressing the upper surface of the cable is set to a position for pressing the upper surface of the cable A to be fed by turning the pressing guide adjusting handle 25. Is 20 mm to 50 mm
Even if the outer diameter is changed in various ranges, the elastic pressing member 27
Since the cable pressing guide 21 elastically presses the upper surface of the cable, the position of the pressing guide 21 is changed without turning the pressing guide adjusting handle 25 every time the cable diameter changes. It is possible to flexibly adapt to changes in the outer diameter of the cable, and it is possible to elastically hold down the upper surface of the cable in response to changes in the outer diameter of the continuously fed cable.

The cable A whose upper surface is pressed by the cable pressing guide 21 and is guided as described above is sandwiched between the rotating cable feed pinch rollers 1a and 1b. The distance between the pinch rollers 1a and 1b sandwiching the cable A is set by turning the pinch roller adjusting handle 8. When the outer diameter of the cable to be fed changes, the elastic pinching member 19 elastically adapts the pinching rollers 1a and 1b to pinch the cable. Therefore, the pinch roller adjusting handle 8 is rotated each time the cable diameter changes. Even if you do not adjust it, you can flexibly pinch both sides of the cable to adapt to the unusual cable diameter.

The rotating pinch rollers 1a, 1b described above.
When the cable A is sandwiched between them, the upper rotary blade 31 and the lower rotary blade 39 rotate and cut into the cable sheath S (FIG. 8) from both upper and lower surfaces of the cable A to cut the sheath. The distance between the upper and lower rotary blades 31 and 39 is set by rotating the rotary blade adjusting handle 35. Even if the outer diameter of the cable A to be fed changes, the elastic notch member 37 rotates it. Since the cutting force of the cable sheath of the blade adapts elastically, the upper and lower rotary blades can be flexibly adapted to the changed cable outer diameter without adjusting the rotary blade adjustment handle 35 every time the cable diameter changes. 31, 39
Has an appropriate depth of cut for the cable sheath.

As described above, the cable feed pinch roller 1
When the sheath S of the cable A sandwiched between a and 1b is cut by the rotary blades 31 and 39 and separated from the cable core C, the sheath S and the cable S are sandwiched by the pinch rollers 1a and 1b which are rotating while sandwiching the cable. The core C is sent out to the rear on the opposite side of the roller, and the sheath S and the cable core C
Are separated.

When the cable for peeling off the cable sheath is fed as described above, the cable pressing guide adjusting handle 25, the pinch roller adjusting handle 8 and the rotary blade adjusting handle 35 are turned in accordance with the outer diameter of the cable. Then, the position where the cable pressing guide 21 presses the upper surface of the cable, the interval between the cable feed pinch rollers 1a and 1b that sandwich the cable, and the interval between the upper and lower rotary blades 31 and 39 are set to start the operation. Even if the diameter of the cable to be fed is changed in the range of 20 mm to 50 mm, it is not necessary to rotate the adjustment handles and reset them each time. The position of the cable pressing guide 21 and the pinch roller 1a 1b spacing and rotary blade 3
An interval of 1 and 39 is set between the elastic pressing member 27 of the cable pressing guide and the elastic pinching member 1 of the pinch roller.
9 and the elastic cutting member 37 of the rotary blade, the cable sheath can be continuously peeled by automatically adapting to the changed cable diameter.

[0035]

As described above, the cable stripping device of the present invention is provided with the elastic pressing member for applying the elastic force of the cable pressing to the cable pressing guide for pressing and guiding the cable to be fed, and the cable is peeled while rotating. The cable feed pinch roller is provided with an elastic pinch member that adds elastic force to pinch the cable, and an elastic cutting member that adds elastic force to cut the sheath to the rotary blade that cuts the cable sheath. Even if the outer diameter of the cable changes from 20 mm to 50 mm, it is not necessary to rotate the cable holding guide, the pinch roller and the rotary blade adjustment handles each time it changes, and the cable feed pinch roller Cable clamp, cable retainer of cable retainer guide, sheath cutting of rotary blade The squeeze-in can be automatically and flexibly adapted to the changed cable outer diameter, and the cable sheath can be continuously and efficiently peeled off.

Further, since the left and right movable bases that support the left and right pinch rollers are connected by the symmetrical movement link device so that both pinch rollers are moved symmetrically, the cable sandwiched between the two pinch rollers is the center of the cable. It is possible to perform the cable sheath peeling work accurately by sandwiching the cable sheath without slipping.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention with a part broken away.

FIG. 2 is a front view showing a partially broken view of an embodiment of the present invention.

FIG. 3 is a front view schematically showing a pinch roller device excluding a symmetrical movement link device.

FIG. 4 is a front view showing a symmetrical moving link device.

FIG. 5 is a perspective view schematically showing a pressing guide device.

6 is a side view seen from the right side of FIG.

FIG. 7 is a front view schematically showing a rotary blade device.

FIG. 8 is a diagram showing an example of a rotary blade.

FIG. 9 is a diagram showing a conventional example.

[Explanation of symbols]

 1: Pinch roller device 1a, 1b: Cable feed pinch roller 4a, 4b: Movable base 8: Pinch roller adjusting handle 10: Symmetrical movement link device 19: Elasticity sandwiching member 21: Cable pressing guide 25: Pressing guide adjusting handle 27 : Elasticity holding member 31, 39: Rotary blade 35: Rotary blade adjusting handle 37: Elasticity cutting member

Claims (1)

[Claims] 1. A pair of left and right cable feed pinch rollers that pinch and feed a cable, an elastic pinch member that applies a cable pinching elastic force to the pinch rollers, and a pair of left and right pins that support the cable feed pinch rollers, respectively. A link device that is connected to a movable base and moves both movable bases symmetrically toward and away from each other, a cable holding guide that guides the cable toward the pinch roller, and an elastic force that adds a cable holding elastic force to the cable holding guide. A cable stripping device comprising: a pressing member, a rotary blade that splits a sheath of the cable sandwiched between the pinch rollers, and an elastic cutting member that applies a sheath cutting elastic force to the rotary blade.