JPH0473818A - Manufacture of multiple parallel lines - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a method for manufacturing multiple parallel wires.

(Prior art) For internal wiring materials in devices, wires for connecting circuit boards, printer electrodes for electrostatic plotters, etc., multiple parallel wires in the form of tapes or sheets are used as flat cables made by bonding together a large number of insulated wires. or is used.

Such multiple parallel wires have conventionally been manufactured as follows.

First, as shown in FIGS. 9 to 11, winding grooves 1a are carved in advance at a prescribed pitch on a mandrel 1 having a predetermined circumference (using the winding grooves 1a as a guide, the mandrel 1 is The wire rods 2 are wound and an adhesive 3 is applied to the upper surface thereof, and the wound wire rods 2 are adhesively fixed to each other (FIG. 11).

After the applied adhesive 3 is dried and solidified, the two groups of wire rods wound around the mandrel 1 are cut along the longitudinal direction of the mandrel 1 as shown by arrow A in FIG. 12, and then glued together. The 2nd group of wire rods prepared are peeled off from the mandrel 1 and
A sheet-shaped multi-parallel wire 4 shown in FIG. 3 is manufactured.

(Problem to be Solved by the Invention) By the way, in the case of manufacturing multiple parallel wires, the individual wires must be arranged with high precision, so the winding grooves of the mandrel must be machined with high precision. , 0.
It is possible to process accurately up to a pitch of about 25 mm. However, if it is less than this, the processing precision of the winding grooves decreases, and as a result, it is difficult to manufacture a multi-parallel wire in which the wire rods are arranged with high accuracy.

Moreover, since the winding grooves are processed with high precision, the mandrel becomes expensive, and because of the use of mandrels, the pitch of the winding grooves must be adjusted to accommodate the production of multiple parallel wires with different arrangement pitches. There is a problem in that it is necessary to prepare many different types of mandrels, which increases the manufacturing cost of multiple parallel wires.

The present invention has been made in view of the above points, and is a method for manufacturing multiple parallel wires with a fine arrangement pitch of wire rods with high precision and at low cost without carving winding grooves on the mandrel. The purpose is to provide

(Means and effects for solving the problem) In order to achieve the above object, according to the present invention, a plurality of wire rods are glued and arranged in parallel in a plane at predetermined intervals, and are formed into a strip or sheet shape. In this method for manufacturing parallel wires, kite wires of a predetermined thickness are closely wound around a mandrel of a predetermined circumference at a desired pitch, and the grooves between adjacent guide wires are used as winding grooves to form a matrix of multiple parallel wires. After winding the wire rods, the wire rods are adhesively fixed to each other, and then the adhesively fixed group of wire rods is cut along the longitudinal direction of the mandrel, and the group of wire rods is peeled off from the guide wire. It is.

In the method of the present invention, first, as shown in FIG. 1, a guide wire 1 of a predetermined thickness is placed on a mandrel 10 of a predetermined diameter.
1 is tightly wound at a predetermined pitch.

The tightly wound guide wire II has a cross-sectional shape other than a rectangular shape, for example, a circular or triangular cross-sectional shape. If the cross-sectional shape is square, it is not possible to accurately position the generatrix wire to be wound on the guide wire 11.

Further, it is preferable to apply a mold release agent such as silicone to the guide wire 11 in advance so that the manufactured multiple parallel wires can be easily peeled off from the guide wire II.

Here, the diameter of the mandrel lO, that is, the circumference determines the length of the wire constituting the multiple parallel wires to be manufactured, and the length of the winding of the guide wire 11 on the mandrel 10 in the longitudinal direction is The width determines the width of the multiple parallel lines produced. Therefore, by appropriately changing the diameter of the mandrel IO and the length of the winding of the guide wire 11, it is possible to manufacture multiple parallel wires in any tape-like or sheet-like shape.

Next, the groove formed by the adjacent guide wire 11 tightly wound on the mandrel 10 is used as a winding groove, and a second winding groove is formed.
The busbar material 12 is wound as shown in the figure. Here, as is clear from FIG. 2, the diameter of the base wire 12 must be smaller than that of the guide wire 11. Further, the diameter (D) of the guide wire 11 to be wound determines the arrangement interval d (=D) of the wires constituting the multiple parallel wires to be manufactured. An insulated wire or a bare wire is used as the bus wire 12, and then the bus wires 12 wound around the guide wire ll are adhesively fixed to each other. Such adhesive fixation is performed by applying an adhesive onto the bus bar material 12 or pasting an adhesive tape. In addition, the bus bars 12 are made into self-bonding wires with an adhesive film, for example, a thermosetting or thermoplastic resin film formed on the surface, and the bus bars 12 are bonded and fixed to each other by heat treatment. Alternatively, attach thermoplastic adhesive tape to the busbar material 12.
The base wires 12 may be bonded and fixed to each other by wrapping the wires on top and subjecting them to similar heat treatment.

Next, as shown by arrow B in FIG.
Peel from. In this way, a multi-parallel wire in which a plurality of generatrix members 12 are arranged in parallel at predetermined intervals is manufactured.

(Example) Example 1 As shown in Fig. 1, a mandrel 1 with a diameter of 100 mm was used.
0, the guide wire 11 with a diameter of 0.125 mm is 125μ
The guide wire 11 was tightly wound at a pitch of m, and silicon was applied to the surface of the wound guide wire 11.

Next, as shown in FIG. 2, the tightly wound guide wire 1
A conductor 1 with a diameter of 0.06 mm is placed on top of the conductor 1 as a bus bar 12.
A two-type self-bonding insulated wire (finished outer diameter 0.08 mm), in which an insulating layer 12b and a fusion layer 12c made of a thermoplastic resin were formed in that order, was wound around 2a.

Thereafter, this bus wire material 12 was immersed together with the mandrel 10 in ethyl alcohol for 3 seconds, and then heated at 120°C for 3 seconds.
The base wires 12 were bonded and fixed to each other by heating and drying for 0 minutes.

Next, as shown in FIG. 3, the bus wire 12 is cut along the longitudinal direction of the mandrel 10, and the bus wire 12 is peeled off from the guide wire 11 to have a width of 96 mm and a length as shown in FIG. A 100 mm tape-shaped multi-parallel wire 20 was manufactured.

In the manufactured multi-parallel wire 20, each generatrix material 12 is 12
They were arranged in parallel at intervals of 5 μm, and had a good external appearance, similar to those produced by the conventional method. Moreover, when cut in the width direction, as shown in FIG.
In No. 2, the fusion layer 12c formed on the outermost layer of the conductor 12a melted, and the melted resin became an adhesive layer 21 to adhesively fix the bus bars 12 to each other.

Here, since silicon was applied to the surface of the guide wire 11 in advance, the adhesively fixed bus wire 12 groups were easily peeled off from the guide wire 11.

Example 2 Next, an example of manufacturing a multi-parallel wire 30 using a bare copper wire with an outer diameter of 0.08 m as the bus wire material will be described with reference to FIGS. 6 to 8. Incidentally, since the mandrel and guide wire used are the same as in Example 1, the same reference numerals will be used in the following description.

First, a guide wire 11 with a diameter of 0.125 nun was tightly wound around a mandrel 10 with a diameter of 100 mm at a pitch of 125 μm, and silicon was applied to the surface of the guide wire 11.
As shown in FIG. 6, a bare copper wire 31 having a diameter of 0.08 mm was wound as a bus wire material.

After that, for example, an epoxy resin adhesive 32 is applied onto the bare copper wire 31 and dried, and the bare copper wire 3 is wound.
1 were glued together.

Next, the bare copper wire 31 is attached to the mandrel 1 together with the adhesive 32.
0 and peeled from the guide wire 11 to produce a tape-shaped multi-parallel wire 30 having a width of 96-1 and a length of 100 mm as shown in FIG.

In this multi-parallel wire 30, as shown in FIG. 8 cut in the width direction, the bare copper wires 31 are arranged in parallel with each other at intervals of 125 μm, and the appearance is similar to that manufactured by the conventional method. It looked good.

Based on the method of the present invention, multiple parallel wires of various shapes were manufactured by changing the diameter of the mandrel, the length of the guide wire wound around the mandrel, the diameter of the guide wire, and the diameter of the base wire. , it was possible to easily produce multi-parallel wires that were comparable to those produced by conventional methods.

(Effects of the Invention) As is clear from the above explanation, the method of the present invention can be used with high accuracy even when the wire rods are arranged in multiple parallel lines with a fine pitch, without using a mandrel with winding grooves. ,and,
It can be manufactured cheaply.

[Brief explanation of the drawing]

Figures 1 to 5 show a first embodiment of the method for manufacturing multiple parallel wires of the present invention using insulated wires, and Figure 1 is a cross-sectional front view showing a guide wire wound around a mandrel. , Fig. 2 is a cross-sectional front view showing the state in which the bus bar material is further wound, Fig. 3 is a perspective view showing the cutting of the bus bar material shown in Fig. 2, and Fig. 4 shows the manufactured multiple parallel wires. Perspective view, Figure 5 is v of Figure 4
-■ Cross-sectional views, FIGS. 6 to 8 show a second embodiment of the method of the present invention using bare copper wire, and FIG. 7 is a cross-sectional front view showing a state in which bare copper wire is wound; FIG. 7 is a perspective view showing the manufactured multi-parallel wire; FIG. 8 is a cross-sectional view taken along
Figures 13 to 13 show a conventional method for manufacturing multiple parallel wires. Figure 9 is a perspective view of the mandrel, Figure 10 is an enlarged sectional view of the main part showing the winding grooves carved in the mandrel, and Figure 11 is The figure is an enlarged sectional view of the main part showing the state in which the wire rod wound around the mandrel is fixed with adhesive, Figure 12 is a perspective view showing the cutting of the wire rod shown in Figure 11, and Figure 13 is the manufactured multi-parallel wire. FIG. 10... Mandrel, 11... Guide wire, 12.
... Bus wire material, 12a... Conductor, 12b... Insulating layer,
12c... Fusion layer, 20... Multiple parallel lines, 21...
・Adhesive layer, 30...Multiple parallel wires, 31...Bare copper wire,
32...Adhesive.

Claims (1)

[Claims] In a method for manufacturing multi-parallel wires in which multiple wires are glued and arranged parallel to each other at predetermined intervals in a plane and formed into a strip or sheet, wires of a predetermined thickness are placed on a mandrel with a predetermined circumference at a desired pitch. After winding the guide wires in close contact with each other, using the grooves between adjacent guide wires as winding grooves, and winding the busbar material to form multiple parallel wires, the busbars are adhesively fixed to each other. A method for manufacturing a multi-parallel wire, comprising cutting a generatrix group along the longitudinal direction of the mandrel and peeling the generatrix group from the guide wire.