JPS6255246B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel method for manufacturing flat cables that facilitates terminal processing operations.

Flat cables are made by arranging multiple insulated conductors in parallel and fusing the insulated conductors at predetermined intervals in the longitudinal direction of the cable, thereby providing alternating fused and non-fused parts. It has been attracting attention in recent years as a cable that has excellent flexibility due to the presence of the fused part, and can be easily connected at once by fitting a connector at the fused part.

Conventional methods for manufacturing this type of cable include a method in which uneven parts are provided on the circumferential surface of a heat pressure bonding roll, and a method in which a concave part is a non-fused part and a convex part is a fused part; There is a method in which a non-fused part is provided by moving the roll and the roll is raised, and a fused part is provided by lowering the roll.

However, the former method is good when the interval between the fused parts is short, but when the interval becomes long, the roll diameter must be increased, and the mechanism has the disadvantage that the fused interval is limited.

On the other hand, the latter method is effective at relatively low speeds, but as the manufacturing speed increases, it has the disadvantage that the vertical mechanism becomes complicated.

In view of the above points, the present invention has been made with the aim of providing an excellent manufacturing method that is not subject to limitations such as the spacing of fused parts and manufacturing speed. In manufacturing a flat cable in which fused parts and non-fused parts are alternately provided by arranging the insulated conductors in parallel and fusion-bonding the insulated conductors at predetermined intervals in the longitudinal direction, the fused parts are A heating and pressing roll is provided, which has an arc length corresponding to the length of the insulated conductor, and is composed of a fan-shaped heating roll that rotates intermittently and a circular roll that rotates continuously, and the heating roll moves in conjunction with the movement of the insulated conductor a predetermined distance. A method of manufacturing a flat cable is characterized in that the flat cable is crimped to the circular roll by rotation to form a fused portion, and after rotation is stopped at a position where it does not come into contact with the insulated conductor.

Next, one embodiment of the manufacturing method of the present invention will be further described with reference to the accompanying drawings.

In FIG. 1, insulated conductors 7 supplied from a feeder 8 are arranged in groups at predetermined intervals by a guide roll 6, and then fed into heating and pressing rolls 1 and 2.

Here, the heat-pressing roll is composed of a continuously rotating circular roll 2 and an upper heating roll 1.

The heating roll 1 is a fan-shaped roll that has an arc length corresponding to the fused portion and rotates intermittently,
As clearly indicated by diagonal lines, after one revolution as indicated by the dotted line around the rotating shaft 15, it has a mechanism that always stops at a position where it does not come into contact with the insulated conductor 7, as shown in the figure, and is interlocked with the insulated conductor moving measuring device 16. The insulated conductor 7 rotates when the insulated conductor 7 moves a predetermined distance to form a fused portion 10.

Furthermore, this flat cable has eccentric rotation shaft 1.
4, the intermediate portion of the fused portion 10 is fused 11, and the film is wound onto a winding drum 5.

FIG. 2 shows the external appearance of the flat cable 9 manufactured in this way, and FIG. 3 shows its AA sectional view, in which 13 is a conductor and 12 is an insulator.

The heat-pressing rolls 4 and 5 are used to bind and fuse the middle part of the welded part 10 in order to facilitate handling, but they do not need to be provided if not necessary, and the present invention is not limited to this embodiment. The examples are not to be construed as limiting.

The method of the present invention, which is constructed as described above, is not limited to the spacing of the fused portions and can be applied to any spacing, and since the mechanism is simple, it is easy to automate. It is economical because it can be applied to various fusion intervals with one piece, and its industrial value is very great.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing one embodiment of the present invention, and FIG.
The figure is an external explanatory diagram showing an example of a flat cable manufactured by the method of the embodiment, and Fig. 3 is the A
-A cross-sectional explanatory diagram. 1: Fan-shaped heating pressure bonding roll, 2: Circular roll,
3, 4: Heat pressure bonding roll, 5: Winding drum,
6: Guide roll, 7: Insulated conductor, 8: Feeding machine, 9: Flat cable, 10: Fusion part, 1
1: Fusion binding part, 12: Insulator, 13: Conductor, 1
4: Eccentric rotating shaft, 15: Rotating shaft, 16: Insulated conductor moving measuring device.

Claims (1)

[Claims] 1 Manufacture of a flat cable in which fused parts and non-fused parts are provided alternately by arranging a plurality of insulated conductors in parallel and fusing and integrating the insulated conductors at predetermined intervals in the longitudinal direction. , a heating pressure bonding roll having an arc length corresponding to the fused portion and consisting of a fan-shaped heating roll that rotates intermittently and a circular roll that rotates continuously is provided, and the heating roll moves the insulated conductor a predetermined distance. A method for manufacturing a flat cable, characterized in that the flat cable is rotated in conjunction with the above-mentioned circular roll to form a fused portion, and after rotation, the flat cable is stopped at a position where it does not come into contact with the insulated conductor. .