JPH0415965B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method and apparatus for manufacturing a flat cable in which a large number of coated conductors are connected in the same plane.

[Prior art and its problems]

A flat cable is a cable used for internal wiring of various electronic devices or mutual wiring between devices. For example, as shown in Fig. It has a structure in which it is integrally covered with coating 2.

Figures 2 and 3 show a conventional example of the above-mentioned flat cable manufacturing apparatus, in which a plurality of pallets 5 each carrying a plurality of bobbins 4 each having a coated core wire (single wire) 3 wound thereon are provided. , the coated core wires 3 unwound from each bobbin 4 are passed through the dividing line plate 6 to be aligned in a horizontal row,
7 to heat-seal the insulation coatings of each coated core wire 3 to each other.

In addition, each core wire of the flat cable is placed at the pitch of the blade of the connector (a metal piece that holds the coated core wire and breaks the insulation coating and is brought into contact with the inner core wire) used to connect the flat cable. They are required to be lined up at corresponding pitches P, and therefore, the insertion holes 8 of the dividing line plate 6 are also required to be provided at the same pitches P.

However, since the pitch P is generally a very small value of 1.27 mm (1/20 inch), very high processing accuracy is required when forming the insertion holes 8 in the line segment plate 6. be done. Another problem is that the workability of inserting a large number of coated core wires 3 through the insertion holes 8 of the dividing line plate 6 formed with such fine pitches is poor.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned circumstances, and it facilitates the production of a dividing line board for arranging covered conductors in a line, and improves the workability of inserting the covered conductors through the dividing line board. The purpose is to

[Structure of the invention and its operation]

In order to achieve the above object, the present invention arranges coated core wires on the same plane with mutual spacing larger than the core pitch of a flat cable, and arranges these coated core wires on a plane inclined with respect to the plane. In addition to guiding and aligning the coated core wires, the mutual spacing between the coated core wires is narrowed to a predetermined pitch, and then they are heat-sealed together.

[Embodiments of the invention]

4 to 6 show an embodiment of a flat cable manufacturing apparatus to which the present invention is applied.

This manufacturing device loads the coated core wire 3 wound around the bobbin 4 mounted on the pallet 5 into each pallet 5.
They are inserted into the insertion holes 8 of the dividing line plates 9 and aligned on the same plane, and the respective dividing line plates 9 are assembled as shown in FIG. The coated core wires 3 are aligned in one plane via grooved rollers 10, and then heated by a heat-sealing roll 7.
It has a basic configuration in which it is integrated by.

As shown in FIG. 5, the dividing line plate 9 has insertion holes 8 arranged in a direction forming an angle of 60 degrees with respect to the plane containing the flat cable sent out from the heat sealing roll 7. However, between each insertion hole 8, the pitch P of the core wire in the flat cable is
A spacing given by P'=P/cos 60° is provided. Further, the respective dividing line plates 9 are arranged so that the insertion holes 8 are arranged parallel to each other.

Further, as shown in FIG. 6, the grooved roll 10 moves each coated core within a plane that is inclined with respect to a plane that includes the coated core wires 3 that are inserted through each segment plate 9 and aligned respectively. The wires 3 are arranged at a constant pitch P, and a large number of grooves 10a into which the coated core wires 3 are fitted are formed at intervals P on the surface thereof. In this embodiment, the nine coated core wires 3 arranged on the right side in FIG.
The coated core wire 3 of the book is guided by a grooved roll 10 on the lower side.

It should be noted that the number of pallets installed and the number of bobbins mounted on each pallet are not limited to those of the above embodiment, and it goes without saying that the present invention can be applied to manufacturing flat cables with various numbers of core wires. Furthermore, the arrangement direction of the insertion holes in the dividing line board is not limited to the one described in the above embodiment. For example, by setting an even larger angle with respect to the plane containing the integrated flat cable, By further increasing the distance between the two, it is possible to improve the workability of inserting the coated core wire into the insertion hole.

〔Effect of the invention〕

As is clear from the above description, the present invention has the following effects.

(a) The pitch of the insertion holes in the dividing plate is set to be larger than the core pitch of the actual flat cable, and the alignment direction of the insertion holes is set so as to be inclined with respect to the plane containing the flat cable. Once set, it becomes easy to form the insertion hole in the dividing line plate, and it also becomes easy to insert the coated core wire through the dividing line plate.

(b) Since the dividing plate has a divided structure and the coated core wires of each pallet are inserted through it, compared to the case where the same number of coated core wires are inserted through one dividing plate, It is difficult to make a mistake in the order of passing through the insertion hole.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view showing a conventional example of a flat cable, Figs. 2 and 3 show a conventional example of a flat cable manufacturing device, Fig. 2 is a side view, and Fig. 3 is a side view. 4 to 6 show an embodiment of the present invention, FIG. 4 is a side view, FIG. 5 is a front view of the dividing line board, and FIG. 6 is a front view of the dividing line board. is a longitudinal cross-sectional view of the grooved roll. 1... Core wire, 2... Insulation coating, 3... Covered core wire, 4... Bobbin, 5... Pallet, 7... Heat sealing roll, 8... Insertion hole, 9... Division line board, 1
0...Grooved roll, 10a...Groove.

Claims (1)

[Scope of Claims] 1. A step of feeding the coated core wires 3 from a plurality of bobbins 4, and a step of guiding the group of coated core wires to a dividing plate 9 having a pitch p' larger than the pitch p of the final product. A plane containing the coated core wires lined up on this dividing plate is guided to a group of grooves 10a of a grooved roll 10 having an angle θ with respect to the plane and having the same pitch as the pitch p of the final product. A method for manufacturing a flat cable, comprising: a step of integrating a group of coated core wires collected in a group of grooves 10a of the grooved roll 10. 2. In a flat cable manufacturing device in which a plurality of coated core wires are arranged and integrated on the same plane at a constant pitch and parallel to each other, a plurality of bobbins 4 each having a coated core wire 3 wound thereon are mounted. A plurality of pallets 5 and a plurality of coated core wires unwound from a bobbin mounted on each pallet are passed through each pallet, so that a plurality of pallets are arranged parallel to each other and on the same plane at intervals larger than the pitch. Each coated core wire is guided into a plane that is inclined with respect to the plane containing the line segment plate 9 and the coated core wires lined up by the line segment plate, thereby narrowing the pitch between them and making them coplanar. A grooved roller 10 for aligning and a heat fusing roll 7 for integrating the coated core wires aligned by the grooved roller.
A flat cable manufacturing device comprising: