JPS63314718A - Manufacture of cable with branch line - Google Patents

Abstract

PURPOSE:To make wiring work between a power source and electrical devices located at different places easy by constituting a cable with a mother core wire and multiple branch wires with their surfaces respectively covered with insulation and branching the branch wires as required. CONSTITUTION:A material supply device 1 is constituted with a core reel out supply 13 in the center, and PVC resin reel out supplies 15, 17 respectively located above and below. A set 33 of mother core wire and multiple branch core wires wound around the mother core wire respectively made of copper and aluminum is extruded from the supply 13. A band-like PVC resin is extruded out of the supplies 15 and 17. The resin is then applied on the mother core wire and the branch core wires while they are passing through an adhesive application device 3 by using rollers 19, 21 and is fixed to the surfaces of all of the wires by using an induction heating device 5. These wires are then tightened with a press 9 and wound up with a winding device 11. At the time of use, the branch wires are drawn out corresponding to electrical devices and, removing the resin, connected to the devices.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention generally relates to a method for manufacturing a cable with branch wires, and in particular, for example, in a control panel etc., a plurality of relays (hereinafter referred to as "relays") are connected to an AC power source or a DC power source. )
The present invention relates to a method of manufacturing a cable with branch wires, which is suitably applied as a control cable for connecting, etc.

As is well known, the support control panel is the switch and its operation,
Combining measurement, protection, monitoring, adjustment equipment, etc., internal wiring,
A general term for equipment, including attachments and supporting structures, that typically operate power-consuming systems. Conventionally, for example, a relay sequence diagram as shown in FIG.
In order to realize this on the control panel as described above, physical wiring as shown in FIG. 9 was required. That is, in FIG. 9, each relay R,, Rz, R3, . . . R1, .
One terminal of Rn and the AC power supply R are connected by a plurality of cables in a so-called crossover manner, and each of the relays R1, R2, R3, Kensha Ri, The other terminals of @ and -un and the AC power source T were also connected by a plurality of cables, respectively, in a so-called crossover line. In the above-mentioned wiring connection, driving power was supplied from AC power supplies R and T to each of the relays R1, RZ, R3, ****Ri, and *5sRn.

By the way, in order to realize the wiring connection as shown in FIG. Connect the terminal with a cable to one terminal of relay R, and so on, and finally connect the cable between one terminal of relay Rn-1 and one terminal of relay Rn. In the work process of connecting, the AC power source T and the other terminal of the relay R1 are connected, and the other terminal of the relay R1 and the other terminal of the relay R2 are sequentially connected with a cable, and so on. Finally, a work step of connecting the other terminal of relay Rn-1 and the other terminal of relay Rn with a cable is essential. Therefore, it takes a lot of effort to carry out the above-mentioned work, and if there is a connection failure or connection error at even one point, the entire system may become inoperable. The extra work of having to inspect each time was also necessary. However, the inspection work described above was very time-consuming because a plurality of cables were intertwined on the control panel. In addition, since two cables are connected to the two terminals of each relay R1 to Rn, there is a problem that the contact resistance at each terminal increases and heat is easily generated. . Therefore, the inventors of the present invention have developed a single method for forming a generatrix line in order to improve such problems.
A plurality of conductor wires are crossed at arbitrary angles to form a plurality of branch core wires with respect to the main conductor wire, and the outer peripheries of the one bus core wire and the plurality of branch core wires are approximately covered with an insulating material. By devising a cable with branch wires that is completely coated and using the cable with branch wires, the work of wiring connections between a power source and various electrical devices that receive power from the power source and are driven becomes extremely eye-catching. This could be done efficiently and reliably, and the contact resistance value at the terminals of the various electrical devices did not increase, and heat generation could be suppressed to a minimum.

Based on the results described above, the inventor of the present invention has conducted further research on a method for manufacturing cables with branch wires having the above-mentioned features without twisting, with a good run rate, and as a result, has developed the desired technology. The results obtained were as follows.

1" Therefore, the present invention was created in view of the above, and
Its purpose is to use a power source and various electric Ja! ! It is essential that wiring connections between the various electrical devices can be performed extremely efficiently and with high reliability, and that the contact resistance value at the terminals of the various electrical devices does not increase and heat generation is suppressed to a minimum. It is an object of the present invention to provide a method for manufacturing a cable with branch wires, which allows the cable with branch wires to be manufactured more efficiently and reliably.

The above object is achieved by the cable with branch wires according to the present invention. To summarize, the process of forming a plurality of branch core wires by intersecting a plurality of conductor wires at an arbitrary angle with respect to one conductor wire forming a bus core wire, and an insulating member covering step of sandwiching the branch core wire between insulating members from one side to substantially completely cover the outer periphery of the one bus core wire and the plurality of branch core wires, and the bus core wire and the branches of the insulating member. This method of manufacturing a cable with branch wires includes the step of cutting off a portion that does not correspond to the core wire so that the bus core wire and the branch core wire are not exposed.

Strut 1 Hereinafter, embodiments according to the present invention will be described with reference to the drawings.

FIG. 1 shows a first embodiment of a manufacturing system for carrying out the method for manufacturing cables with branch wires according to the present invention.As is clear from FIG. 1, the outline of the manufacturing system is as follows. Material supply device arranged according to the work order 1. It consists of various devices such as an adhesive coating device 3, an induction heating device 5, a laminating pinch roller 7, a press 9, and a winding device 11. The various devices forming the aforementioned manufacturing system will be described in more detail below. That is, the material supply device 1 includes a core wire feeding supply 13
PVC resin delivery supplies 15 and 17 are provided above and below the center, respectively. The core wire feeding supply 13 is driven to intersect a plurality of conductor wires at an arbitrary angle with respect to one conductor wire (made of copper, aluminum, etc.) forming a bus core wire to form a plurality of branch core wires. The core wire conductor 33 having a so-called comb-teeth shape is fed out, and when driven, the PVC resin feed supply supply 15.17 feeds out a flat plate-shaped insulating member that insulates the core wire conductor 33.
For example, vinyl chloride resin plates 35 each having a thickness of 4 mm are sent out. The adhesive applicator t
3 is such that adhesive can be applied to the surface of the flat vinyl chloride resin 35 sent out from the vinyl chloride resin delivery supplies 15 and 17 on the side that comes into contact with the core wire conductor 33, respectively. It is equipped with adhesive application rollers 19 and 21. The two adhesive application rollers 19 and 21 are driven to apply adhesive to the flat vinyl chloride resin 35, respectively.

The induction heating wave M5 is sandwiched between the vinyl chloride resin 35 on the PVC resin delivery supply 15 side and the vinyl chloride resin 35 on the PVC resin delivery supply 17 side from outside, respectively. A high frequency magnetic field is applied to the core wire conductor 33 which is heated to a temperature higher than the melting point of the vinyl chloride resin 35, for example, 140 to 150''c!.The bonding pinch The roller 7 presses the vinyl chloride resin 35 on the side of the PVC resin delivery supply 15 and the vinyl chloride resin 35 on the side of the PVC resin delivery supply 17 in the vertical direction from their respective outer surfaces, thereby heating them by the induction heating wave W15. The core wire conductor 33 placed in the state is embedded in the flat vinyl chloride resin 35 (see FIG. 2 (a)), and the vinyl chloride resin 35 on the side of the vinyl chloride resin delivery supply 15 and the vinyl chloride resin delivery The vinyl chloride resin 35 on the side of the supply 17 is pasted together as shown in FIG. The parts of the two vinyl chloride resins 35 that do not correspond to the part where the core conductor 33 is embedded are cut off so that the core conductor 33 is not exposed, and a cable 37 with branch wires having a shape as shown in FIG. 3 is obtained. It completes the
The branched cable 37 having the shape shown in FIG. 3 obtained by the press 9 is wound up by a winding device 11.

By adopting the manufacturing system for cables with branch wires configured as described above, wiring connections between a power source and various electrical devices that receive power from the power source and are driven will be extremely efficient and reliable. In addition, it is possible to more efficiently and reliably manufacture a cable with branch wires that can minimize heat generation without increasing the contact resistance value at the terminals of the various electrical devices. 0 A manufacturing system implementing the method for manufacturing a cable with branch wires according to the present invention includes:
The manufacturing system shown in FIG. 1 is not limited to the manufacturing system shown in FIG. 1 as described above; for example, the manufacturing system shown in FIG. Almost the same effect as when adopted is obtained.

FIG. 4 shows a second embodiment of the manufacturing system for implementing the method for manufacturing cables with branch wires according to the present invention.As is clear from FIG. The core conductor 133 and one plate-shaped vinyl chloride resin 135 supplied from the material supply device shown in FIG. A branched cable 137 having the shape described above is obtained through a cooling water tank 29 and a press 31. The pinch roller 25 and the press 31 have substantially the same structure as the press 9, respectively.
A description of each of these devices will be omitted.The feature of this embodiment is that the core conductor 133 heated by the core conductor induction heating device 23 is heated by the core conductor embedding pinch roller 25 into the single flat plate shape. Embedded in vinyl chloride resin 135 (see Figure 5 (a) and (b)), extruder 27
After covering substantially the entire upper and lower surfaces of the vinyl chloride resin 135 in which the core conductor 133 is embedded, the vinyl chloride resin 135 is extruded into a flat plate shape.
, (b)), it is cooled in a cooling water tank 29, and then passed through a brace 31 to obtain a so-called comb-shaped cable 137 with branch wires having a shape as shown in FIG. In this embodiment, the vinyl chloride resin 135 cut off by the press 31 is pelletized and reused. Even when the production system according to this embodiment is adopted, the production system according to the first embodiment In substantially the same way as in the case where the above method is adopted, a cable with branch wires having the excellent features described above can be manufactured more efficiently and reliably.

As explained above, according to the present invention, the work of wiring connections between a power source and various electrical devices that are driven by receiving power from the power source can be performed extremely efficiently and with high reliability. The present invention provides a method for more efficiently and reliably manufacturing cables with branch wires that can be used in various electric devices without increasing the contact resistance value at the terminals of the various electrical devices and suppressing heat generation to a minimum. A method of manufacturing a wired cable can be provided.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a first embodiment of a manufacturing system for carrying out the method for manufacturing a cable with branch wires according to the present invention. Figures 2 (a) and (b) are diagrams showing a cable with branch wires made of vinyl chloride resin and a core conductor that are pasted together by the pasting pinch rollers forming the manufacturing system shown in Figure 1. be. FIG. 3 is a diagram showing a cable with branch wires from which unnecessary portions of vinyl chloride resin have been removed by the press forming the manufacturing system shown in FIG. 1. FIG. 4 is a diagram showing a second embodiment of a manufacturing system that implements the method for manufacturing a cable with branch wires according to the present invention. FIG. 5(a) is a diagram showing a vinyl chloride resin in which a core conductor is embedded by a core conductor ring pinch lawn forming the manufacturing system shown in FIG. 4. FIG. 5(B) is a view seen from direction A in FIG. 5(A). FIG. 6(a) is a diagram showing the structure of a branched cable extruded by an extruder forming the manufacturing system shown in FIG. 4. FIG. 6(B) is a view seen from direction B in FIG. 6(A). FIG. 7 is a diagram showing a cable with branch wires from which unnecessary portions of vinyl chloride resin have been removed by the press forming the manufacturing system shown in FIG. 4. FIG. 8 is a sequence diagram of a general relay. FIG. 9 is a diagram showing a mode in which the sequence diagram of the relay shown in FIG. 8 is realized on a control panel by employing a conventional cable as a control cable. 1: Material supply device 3: Adhesive coating device 5: a! Conductive heating device 7: Pasting pinch roller 9.31 Nibbles 23: Induction heating device for core wire conductor 25: Pinch roller for embedding core wire conductor 27: Extruder

Claims (1)

[Scope of Claims] 1) A step of forming a plurality of branch core wires by intersecting a plurality of conductor wires at an arbitrary angle with respect to one conductor wire forming a bus core wire, and said one conductor wire forming a bus core wire. and an insulating member covering step of sandwiching a plurality of branch core wires between insulating members from both sides to substantially completely cover the outer periphery of the one bus core wire and the plurality of branch core wires; A method for manufacturing a cable with branch wires, comprising the step of cutting off portions that do not correspond to the core wires and the branch core wires so that the core wires and the branch core wires are not exposed. 2) In the insulating member coating step, a high frequency magnetic field is applied to the core conductor consisting of the one bus core wire and a plurality of branch core wires,
The core conductor is heated by the heat generated in the core conductor, and two flat plate-shaped plates each having an adhesive applied to the side of the core conductor in contact with the core conductor are heated. The insulating member is pasted together by applying pressure from the surfaces of the two flat insulating members not in contact with the core conductor to form a laminate consisting of the two flat insulating members and the core conductor. A method for manufacturing a cable with branch wires according to claim 1, characterized in that: 3) The insulating member coating step includes applying a high frequency magnetic field to the core conductor consisting of the one bus core wire and a plurality of branch core wires, heating the core conductor with the heat generated in the core conductor, and heating the core conductor. By pressing the core conductor and a flat insulating member, the core conductor is embedded in the insulating member, and then at least the surface of the insulating member on the side where the core conductor is embedded is 2. The method of manufacturing a cable with branch wires according to claim 1, wherein the same insulating member as the insulating member is formed on a flat plate over substantially the entire area.