JPH0116084B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for stripping double-covered wire.

Conventional coating stripping tools have a blade with an arc-shaped part that matches the diameter of the core wire, and this cuts only the coating without damaging the core wire, and removes it from the core. It is to be torn off by pulling it out from the line.

With such a tool, it is not easy to strip a double coated wire as shown in FIG. 1, for example.

The present invention provides a double-covered wire stripping device that sequentially strips off the outer coating and the inner coating by simply rotating or linearly moving a coating stripping mechanism equipped with a movable blade. The purpose is to provide the following.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A device for stripping a double-covered wire according to the present invention will be described in detail below based on an illustrated embodiment. Figure 2 is a plan view of the device of the present invention;
The figure is a front view, that is, a view seen from the direction of the arrow in FIG. In these figures, 1 is a base plate, 2 is a cam disk rotatably mounted around a shaft 3 fixed to the base plate 1, 4 is a fastening mechanism fixing member fixed to the base plate 1, and 5 is a base plate. A material clamping arm 7 rotatably held by a shaft 6 fixed to 1 is in contact with the cam surface 2a of the cam disk 2 by a roller fixed to one end of the arm 5. A movable member 8 for the tightening mechanism is attached to the other end of the arm 5 and is located opposite to the fixed member 4 for the tightening mechanism. The fixed member 4 and the movable member 8 constitute a tightening mechanism that tightens the covered wire by moving the movable member 8, as will be described later.

Reference numeral 9 denotes another cam plate rotatably attached to the mounting shaft 10 fixed to the protruding piece 2c from the cam disk 2, 11 a fixed blade fixed to the cam disk 2, 1
2 is a fixed blade 11 near the tip of an arm-shaped cam plate 9.
These blades have recesses 11 at the position of the core wire as shown in FIG.
a, 12a. The fixed blade 11, the cam disk 2 that serves as a support member that fixedly supports it, the movable blade 12, and the cam plate 9 that serves as a support member that supports it are rotated together by operating a lever as described later. In between, blades 11 and 12
This constitutes a stripping mechanism for cutting and stripping the covering.

13, 14, and 15 are first, second, and third movable blade moving rollers, respectively, which are fixed to the tips of roller holding plates 16, 17, and 18, and are arranged near the surface 9a of the cam plate 9. There is. Further, these roller retaining plates 16, 17, 18 are attached to tightening bolts 19,
It is fastened and fixed at an appropriate position in an arc-shaped long groove 1a centered on the shaft 3 formed on the substrate 1 by fastening means such as 20 and 21. These rollers 13, 14, 15, etc. and a cam plate constitute a cam mechanism.

22 is a lever fixed to the cam disc 2 or formed integrally therewith, and 23 is a material rest that is fastened and fixed to the lever 22 by a fastening means 24.

Next, the operation of the apparatus of the present invention described above will be explained. First, as shown in the figure, the tip of the double coated wire 25 is placed on the contact surface 24a of the material abutment 24, and the cam disk 2
Position it approximately along the circumferential surface of. In other words, the double coated wire 25 has a contact surface 24a of the material contact 24.
It is located between the fixed blade 11 and the movable blade 12, and further between the fixed member 4 and the movable member 8 of the tightening mechanism. In this state, the lever 22 is operated to rotate the cam disk 2 in the direction of the arrow. As a result, the cam disk 2 and the cam plate 9 rotate together, and the blades 11 and 12 attached to them also move. Due to this rotation of the cam disk 2, the cam surface 2b is rotated to the roller 7.
The cam surface 2b pushes the roller 7 and the arm 5 rotates around the shaft 6 in the direction of arrow B. As a result, the movable member 8 for the tightening mechanism moves in a direction to narrow the distance from the fixed member 4 and tightens the covered wire 25. Subsequently, when the cam disk 2 further rotates, the cam plate 9 moves together with it, and the cam surface 9
b reaches a certain position of the first roller 13 and is pushed by it, so that the cam plate 9 rotates about the shaft 10 in the direction of the arrow c. As the cam plate 9 rotates, the movable blade 12 fixed thereto moves toward the fixed blade 11. This allows both blades 1
The distance between 1 and 12 becomes narrower, and the covered wire 25 becomes closer to the blade 1.
1 and 12. In this case, the tip of the first roller 13 is positioned so that when the cam plate 9 is pushed, the space between the fixed blade 11 and the movable blade 12 cuts only the outer coating and does not affect the inner coating at all. Set the interval so that In other words, the tightening bolt 19 is loosened, and the groove 16a of the roller holding plate 16 holding the first roller 13 is used to adjust it to the above position, and then the tightening bolt 19 is tightened. As a result, only the outer covering of the double-covered wire 25 is cut. Furthermore, when the cam disk 2 rotates, the cam plate 9 also rotates, so the blades 11, 12
also move. Due to this movement of the blades 11 and 12, the double coated wire 25 has an outer coating that is attached to both of the blades 11 and 12.
ripped off by When the cam disk 2 further rotates and the cam plate 9 moves, the cam surface 9b comes into contact with the second roller 14. If the tip position of the second roller 14 is made the same as the tip position of the first roller 13, that is, the distance from the tip position of the second roller 14 to the shaft 3 will be the same as the tip position of the first roller 13. 3, the cam plate 9 moves while maintaining the same state as when the cam surface 9b is in contact with the first roller 13. Therefore, the distance between the fixed blade 11 and the movable blade 12 remains unchanged, and the outer coating of the double-covered wire 25 covers both blades 1.
1 and 12. Subsequently, the cam surface 9b moves to the position of the third roller 15. As shown in the figure, the third roller 15 has its tip disposed closer to the cam plate 9 than the other rollers 13 and 14. For this purpose, the cam surface 9b of the cam plate 9 is pushed by the third roller 15, and the cam plate 9 is further rotated around the shaft 10. As a result, the distance between the fixed blade 11 and the movable blade 12 becomes even narrower, and the inner coating of the double-covered wire 25 is also cut at the recesses 11a and 12a of both blades. By further rotation, the cut inner coating is stripped off together with the outer coating by both blades 11 and 12.

In the above device, the position of the first roller 13 is adjusted by a tightening bolt 19. At this time, the adjustment is made by adjusting the roller holding plate 16 along the arcuate groove 1a to adjust the interval from when the double coated wire 25 is fixed by the tightening mechanism until it is cut by the blades 11 and 12. Ru. On the other hand, the roller retaining plate 16
The distance from the roller 13 to the shaft 3 is adjusted by moving the roller along the groove 16a. This adjustment is made according to the covered wire, and the fixed blade 11
The movable blade 12 ensures that only the outer coating is cut. The second roller 14 is also adjusted in exactly the same way as the first roller 13. By adjusting the direction of the roller 14 along the arcuate groove 1a, the state when the outer coating is cut by both blades 11 and 12 (the interval between both blades at that time) is maintained until the next time the inner coating is cut. Positioned so that Further, the adjustment using the grooves 17a of the roller holding plate 17 is performed so that the tip of the second roller 14 is aligned with the tip of the first roller 13, as described above. Finally, adjustment of the third roller 15 in the direction along the groove 18a of the roller holding plate 18 is performed by adjusting the blade 1
1 and 12 ensure that only the inner sheath is cut and the core wire is not damaged. Further, by adjusting the direction of the roller 13 along the arcuate groove 1a, the length _t2 from when the outer coating is cut until when the inner coating is cut is determined. Furthermore, the material stop 23 can also be adjusted in the direction along the groove 23b by means of the tightening means 24. By this adjustment, the length (t ₁ +t ₂ ) from the tip of the double-covered wire to the breaking point of the outer coating that is first cut is adjusted.

When stripping the double coated wire in this embodiment, the stripped coating remains on the substrate 1. Therefore, there is the inconvenience of having to remove the stripped coating each time or from time to time. In order to eliminate this inconvenience, it is desirable to form a hole of an appropriate size for dropping the coating at an appropriate location on the substrate 1 (near the blades 11 and 12 where the stripped coating remains).

Further, the cam mechanism of the illustrated embodiment has a cam disk 2
A cam plate 9 is rotatably attached to the base plate 1, and a movable blade 12 is fixed to the tip thereof, while each roller 1 is attached to the base plate 1.
3, 14, and 15 are attached, but the reverse is also possible. That is, it is also possible to rotatably attach an arcuate arm to the cam disk, attach the blade and each roller to this arm, and fix the cam plate to the substrate side. However, in that case, the length of the arm must be at least long enough to attach three rollers, so the length of the arm becomes long, and it becomes even larger to make the position of these rollers adjustable, which is not preferable.

Also, in this embodiment, the second roller 14
Although not necessarily required, the first roller 1
Depending on the distance between the third roller 15 and the third roller 15, the cam plate 9 will move and become unstable unless the length of the surface 9b of the cam surfaces is increased. Furthermore, it may become virtually impossible to increase the length of this surface 9b.
Therefore, it is preferable to arrange the second roller 14. In this way, the cam mechanism is not limited to that of the embodiment, and may be any mechanism as long as it allows the coating stripping mechanism to perform the above-described operation.

In the illustrated embodiment, both blades are moved along an arc, and for this purpose a disc or an arc-shaped cam plate is used. However, it is also possible to have a structure in which the blade is moved in a direction along a straight line, for example, a structure in which each cam has a cam surface in a direction along a straight line.

In addition, the stripping device for other coated wires, such as a stripping device for a double coated wire with three cores instead of a double coated wire with two cores as shown in FIG. (with three recesses).

Also, by providing a spring, the arm 5
A force in the direction opposite to arrow B is applied to the arm (cam plate).
If the configuration is such that a force is always applied to the lever 9 in the direction opposite to the arrow C, when the lever 22 is operated in the direction of the arrow A to strip off the coating and then returned, the above-mentioned arms will be released by hand. However, it may be possible to start the next operation without having to restore it.

As explained above, according to the sheath stripping device for double coated wire of the present invention, the outer sheath and the inner sheath can be sequentially stripped off without damaging the core wire by simple rotation or linear movement. . Furthermore, by using the mechanism shown in the embodiment, the lengths of the outer covering and the inner covering to be peeled off can be freely adjusted.

[Brief explanation of drawings]

Fig. 1 is a diagram showing a double-covered wire with the coating removed from the tip, Fig. 2 is a plan view of an embodiment of the present invention, and Fig. 3 is an end view of a part of the above embodiment. The front view shown in FIG. 4 is a diagram showing the shape of the blade used in the above embodiment. DESCRIPTION OF SYMBOLS 1... Board, 2... Cam disc, 4... Fixed member of the tightening mechanism, 8... Movable member of the tightening mechanism, 9...
Cam plate, 11...Fixed blade, 12...Movable blade, 13
...first roller, 14...second roller,
15...Third roller.

Claims (1)

[Claims] 1 A tightening device consisting of a fixed member and a movable member, which tightens and fixes the covered wire by the movement of the movable member, a fixed blade fixed to a support member, and an arm rotatably supported by the support member. a movable blade fixed to the sheathing stripping mechanism and configured to be movable as a whole in a predetermined direction; and a cam mechanism that rotates the arm at each stage of movement of the stripping mechanism, the stripping mechanism The movable blade is moved in a predetermined direction to be tightened and fixed by the tightening mechanism, and then the movable blade is moved by a predetermined amount by the cam mechanism to cut the outer coating and then stripped at a fixed interval, and the movable blade is further moved. A double-covered wire sheath stripping device configured to cut and strip the inner sheath by cutting the inner sheath.