JPS6120821Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for stripping the end portions of two-core parallel covered electric wires into steps having a predetermined difference in size.

When connecting a two-core covered electric wire to an electrical device, for example, as a power cord, there are relatively many cases in which the positions of the connection terminals are different in the longitudinal direction of the electric wire. In this case, as shown in Fig. 1, after splitting the electric wire 1 and separating it into two single wires 2a and 2b, one of the single wires 2a is cut short by the length of the difference in height, and the coating 3a at the tip of each wire is cut into two pieces. , 3b are peeled off using a peeling device, and the exposed core wires 4a, 4b are twisted by hand to form an uneven electric wire, and a large portion of the process is manual work. Therefore, manufacturing this uneven electric wire requires an extremely large amount of man-hours and time compared to the normal case of aligning the wires to the same size and stripping them. Therefore, there has been a need for a device that can automatically trim the ends of a two-core coated wire to a predetermined size difference, strip the tip, and twist the core wire to expose the wire.

In response to this request, it is conceivable to automatically process uneven electric wires through the following process. (1) First, the second
As shown in figure a, wire 1 is connected to two single wires 2a, 2b.
split between legs. (2) As shown in FIG. 2b, make cuts 5a and 5b in the coating according to the required step size difference, and pull out the coatings 3a and 3b slightly from the core wires 4a and 4b. (3) Sandwich the coatings 3a and 3b and rotate them around the core wires 4a and 4b,
While applying twist to a and 4b, the coating 3a is further pulled out as shown in FIG. 3c, and the coating 3b is completely pulled out. (4) Only one single wire 2a has the required dimensions.
As shown in Figure d, the sheathing 3a is cut into short pieces, and the rear part of the sheathing 3a is removed by hand during connection.

Among the above-mentioned processes, steps (1) and (3) are generally carried out in normal electrical wire stripping, and the present invention particularly realizes uneven stripping in step (2). It is.

The purpose of this invention is to create uneven cuts in the wire coating in order to automatically process uneven electric wires.
An object of the present invention is to provide an electric wire uneven stripping device that slightly peels the coating from a core wire, and the content thereof is an apparatus that removes the coating ends of two separated single wires of a two-core parallel covered electric wire in different steps, A splitting mechanism splits the covered electric wire, spreads the two split single wires at a desired angle, and fixes them, and pulls each coated end of the two spread and fixed single wires at different levels. The splitting mechanism includes a guide member having an inverted V-shaped surface on the inside near the splitting blade provided on the lifting member, and a holding plate that elastically presses the covered electric wire, The peeling mechanism includes a first blade support member that can move forward and backward by a predetermined dimension;
a second blade support member rotatably supported on the blade support member; and two first cutting blades attached to the first blade support member at different levels and in parallel in the front-rear direction;
A second two cutting blades are attached to the second blade support member at different levels and in parallel, and are respectively opposed to the first two cutting blades, and the opposing first and second cutting blades are provided.
a mechanism for making the minimum distance between the two sets of cutting blades larger than the core wire diameter of the single wire;
The two sets of cutting blades make cuts in the sheathing of the single wire at different levels, and the ends of the sheathing are pulled out by moving the first and second blade support members backward.

The present invention will be explained in detail based on the embodiment shown in FIG. 3 and below.

The mechanisms shown in FIGS. 3 and 4 perform uneven stripping of electric wires through related operations.
Figure 3 shows electric wire 1 fixed and split single wire 2.
A splitting mechanism 10 that expands a and 2b to a required angle
FIG. 4 shows cuts 5 with different dimensions in the single wires 2a and 2b that are expanded and fixed by the splitting mechanism 10.
5a and 5b, and shows a peeling mechanism 30 for slightly pulling out the coatings 3a, 3b.

The splitting mechanism 10 shown in FIGS. 3a and 3b consists of an upper support member 11 and a lower support member 12 fixed to a frame (not shown). A pneumatic cylinder 13 is provided on the upper part of the upper support member 11, and its piston rod An elevating member 15 is fixed to the lower end of 14. The elevating member 15 is guided so as to be slidable up and down in a guide groove of the upper support member 11, and a guide member 16 and a splitting blade 17 are provided at its lower end.
The guide member 16 is provided with an inverted V-shaped surface 18 on the inside, as shown in FIG. The splitting blade 17 cuts the single wires 2a and 2 of the electric wire 1.
The single wires 2a and 2b are pushed into the space between the wires 2a and 2b at a predetermined angle. A press plate 19 disposed on the elevating member 15 between the guide member 16 and the splitting blade 17 is supported to be slidable in the vertical direction, and a pin 20 protrudes from the upper part of the press plate 19 and a pin 20 protrudes from the elevating member 15. The rest position shown in the figure is maintained by the tension spring 2 between the pin 21 and the pin 21. Further, a receiving plate 23 is fixed to the lower holding member 12, and a groove 24 is cut into this receiving plate 23 so that the tip of the splitting blade 17 can fit therein. Furthermore, a gap 25 shown in FIG. 4b is provided between the lower support member 12 and the receiving plate 23, into which the guide member 16 is inserted.

The splitting mechanism 30 shown in FIGS. 4a and 4b is arranged at the rear of the splitting mechanism 10, and includes a lower blade support member 31 and an upper blade support member 32. The lower blade support member 31 is movably supported by a relatively short distance in the front-rear direction in FIG. Further, its lower end 34 is connected to an operating member 36 by a shaft 35. A cutting blade 37 is fixed to the lower blade support member 31 by a bolt 38, and a cutting blade 39 is fixed to the lower blade support member 31 by a bolt 40. As shown in FIGS. 4a and 4b, the cutting blades 37 and 39 are provided in parallel and are also arranged at different levels by a predetermined dimension in the front-rear direction. Similarly, the cutting blades 41 and 42 are attached to the bolt 4 on the upper blade support member 32.
3 and 44. Cutting blades 37 and 4
1 and the cutting blades 39 and 42 are aligned in the parallel direction and the front-back direction, and the adjustment bolt 45 screwed into the upper blade support member 32 is connected to the seat 4 provided on the lower blade support member 31.
6. Due to this contact, the distance between the cutting blades 37 and 41 and the cutting blades 39 and 42 is
Each coating 3a of the single wire 2a, 2b of the electric wire 1,
Cuts 5a and 5b are made in the upper and lower directions of the cutters 3b, and the dimensions are such that a distance is maintained without cutting the core wires 4a and 4b.

As shown in FIG. 2a, the two-core covered electric wire 1 which has been torn in the previous step and separated into single wires 2a and 2b of a predetermined length is supplied to the stripping device according to the present invention. That is, the tip of the electric wire 1 is as shown in Fig. 4b.
As shown in the lower blade support member 31 of the peeling mechanism 30,
and the upper blade support member 32, and the intermediate portion is placed on the lower support member 12 of the splitting mechanism 10 as shown in FIGS. 3a, b and 4b. However, in Fig. 4b, cuts 5 are made in the coatings 3a and 3b of the electric wire 1.
a and 5b are inserted, and when supplying the electric wire 1, the operating member 36 advances to the left, the upper blade support member 32 rotates clockwise, and the lower blade support member 3
1 and the upper blade support member 32 is widened. In the splitting mechanism 10, when air is supplied to the pneumatic cylinder 13 to lower the piston rod 14, the elevating member 15 slides downward in the guide groove, and the guide member 16, presser plate 19, and splitting blade 17 move downward. descends. The guide member 16 enters the gap 25 of the lower support member 12 and positions the electric wire 1 at a predetermined center using its inverted V-shaped surface 18. At the same time, the holding plate 19 comes into contact with the upper surface of the electric wire 1 and presses down the electric wire 1 from above by the acting force of the spring 22. The splitting blade 17 enters the branching portion of both the single wires 2a and 2b of the electric wire 1, and spreads both the single wires 2a and 2b at a predetermined angle. As shown in FIG. 4b, when the electric wire 1 is expanded and fixed by the splitting mechanism 10, the single wires 2a and 2b
are located between the cutting edges 37 and 41 and between the cutting edges 39 and 42, respectively, as shown in FIG. 4a. Here, when the operating member 36 moves backward to the right, the upper blade support member 32 rotates counterclockwise relative to the lower blade support member 31 about the pivot shaft 33, and the adjustment bolt 4
5 comes into contact with the seat 46 and assumes the positions shown in FIGS. 4a and 4b. As a result, the core wires 4a and 4b are not cut, and the sheaths 3a and 3b of both the single wires 2a and 2b are provided with cuts 5a and 5b at different levels by the cutting blades 37 and 41 and the cutting blades 39 and 42, respectively. It will be done.
When the operating member 36 is further moved backward in this state, both the lower blade support member 31 and the upper blade support member 32 are moved backward,
The coatings 3a and 3b cut from above and below are cutting blades 37,
It is pulled to the right by the end faces of 41, 39, and 42 and breaks, and slides on the core wires 4a and 4b to form the structure shown in Fig. 2b.
As shown in the figure, move to the right side to complete uneven peeling.

As explained above, the electric wire uneven stripping device according to the present invention is provided with cutting blades for each single wire, and these are made uneven, so that it is possible to carry out uneven uneven stripping with a required dimension difference in one operation, and the uneven electric wire It can be effectively used as a one-step device for automation.

[Brief explanation of the drawing]

Figure 1 is a plan view of the uneven electric wire, Figure 2 a, b,
c and d are process diagrams for creating an uneven electric wire, Figures 3 and below show the electric wire uneven peeling device according to the present invention, Figure 3 a is a rear view of the splitting mechanism, and b is a side view thereof. Figure 4a is a front view of the peeling mechanism, b
is its side view. Code 1 is a two-core covered electric wire, 2a and 2b are single wires, 3
a, 3b are coatings, 4a, 4b are core wires, 5a, 5b
10 is a notch, 10 is a splitting mechanism, 11 is an upper support member, 12 is a lower support member, 13 is a pneumatic cylinder, 15 is a lifting member, 16 is a guide member, 17 is a splitting blade, 18 is an inverted V-shaped surface, 19 is a presser plate, 23
30 is a receiving plate, 30 is a peeling mechanism, 31 is a lower blade support member, 32 is an upper blade support member, 36 is an operating member, 3
7, 39, 41, 42 are cutting blades, 45 is an adjustment bolt, and 46 is a seat.

Claims (1)

[Scope of utility model registration request] This is a device for removing the covered ends of two separated solid wires of a two-core parallel covered electric wire at different levels, which splits the covered wire and spreads the two split solid wires at a required angle. The splitting mechanism consists of a splitting mechanism that fixes the wires by a splitting mechanism, and a peeling mechanism that pulls out the coated ends of the two spread and fixed single wires at different levels. The peeling mechanism includes a guide member having an inverted V-shaped surface on the inside nearby and a presser plate that elastically presses the coated wire, and the peeling mechanism includes a first blade support member that can move forward and backward by a predetermined distance; a second blade support member rotatably supported on the first blade support member; and two first cutting blades attached to the first blade support member at different levels and in parallel in the front-rear direction; two second cutting blades that are attached to the second blade support member at different levels and in parallel, facing the first two cutting blades, and two opposing sets of the first and second cutting blades; a mechanism for making a minimum interval between the cutting blades larger than the diameter of the single wire, the two sets of cutting blades, the first and second cutting blades making cuts at different positions in the covering of the single wire, and . An electric wire uneven stripping device, characterized in that the covered end portion is pulled out by moving the second blade support member backward.