CN115171963A - Flat conductor shielded cable and flat conductor processing equipment thereof - Google Patents

Abstract

The invention discloses a flat conductor shielded cable and flat conductor processing equipment thereof, and relates to the related field of electric wires and cables. The flat conductor processing equipment includes a calendering device, a wire bundling device is arranged on the inlet side of the calendering device, and a plurality of copper wire rollers are arranged in parallel at one end of the wire bundling device away from the calendering device, and the copper wire rollers are respectively wound with copper wires, A tension roller is arranged above the copper wire roller on the side away from the wire harnessing device, and a wire feeding device is arranged on the other side above the copper wire roller. The wire feeding device between the wire bundling device and the wire feeding device can enter the calendering device for calendering after being twisted by the wire bundling device; the cable of the invention does not need a filling layer, reduces the outer diameter and reduces the cost .

Description

Flat conductor shielded cable and flat conductor processing equipment

technical field

The invention relates to the technical field of wires and cables, in particular to a flat conductor shielded cable and flat conductor processing equipment.

Background technique

The wire and cable industry is the second largest industry in China after the automobile industry, and the product variety satisfaction rate and domestic market share both exceed 90%. Worldwide, China's total output value of wire and cable has surpassed that of the United States, becoming the world's largest wire and cable producer. With the rapid development of China's wire and cable industry, the number of new companies continues to rise, and the overall technical level of the industry has been greatly improved. With the continuous expansion of the scale of China's electric power industry, data communication industry, urban rail transit industry, automobile industry, shipbuilding and other industries, the demand for wires and cables will also grow rapidly, and the wire and cable industry has huge development potential in the future.

With the rapid development of global communication, 5G communication infrastructure has been rolled out, and a large amount of power will be needed in a large number of communication infrastructures. A large amount of power needs to be transmitted by power lines with excellent performance as a medium, resulting in more and more space for cable laying. Intensive, the cable will generate heat during operation, and the dense space will make it difficult to dissipate heat. After the cable generates heat, if the cause is not found and the fault is eliminated in time, the cable will continue to be continuously powered and run, and the insulation thermal breakdown will occur, causing the cable to short-circuit and trip between phases. phenomenon, which may cause a fire in serious cases. Therefore, the D-type cable for high-power telecommunication equipment with a small outer diameter of the cable, which can reduce the conductor temperature and work more efficiently will become the development trend of the D-type cable conductor in the future. The current cable is generally made of two insulated core wires with a circular cross-section and then wrapped with an outer sheath with a circular cross-section. The roundness of the two insulated core wires is not good after twisting. , it is necessary to add a filling layer inside the outer sheath, which increases the cost, and at the same time, with the larger outer diameter, the materials used in the subsequent sheathing process are increased.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a flat conductor shielded cable and its flat conductor processing equipment, so as to solve the above-mentioned problems in the prior art, without the need for a filling layer, reducing the outer diameter and reducing the cost.

For achieving the above object, the present invention provides the following scheme:

The invention provides a flat conductor shielded cable, comprising two symmetrically arranged semicircular insulating layers, conductors are arranged in the insulating layers, and wrapping tapes are covered on the two insulating layers, and the wrapping tapes An outer sheath with a circular cross section is arranged outside, and a braided shielding layer is arranged between the outer sheath and the wrapping tape.

Optionally, the conductor is a flat conductor formed by twisting a plurality of copper wires.

The present invention also provides a flat conductor processing equipment for flat conductor shielded cables, including a rolling device, a wire bundling device is provided on the inlet side of the rolling device, and a plurality of copper wires are arranged in parallel at one end of the wire bundling device away from the rolling device. Wire rollers, copper wires are respectively wound on the copper wire rollers, a tension roller is arranged above the copper wire rollers on the side away from the wire harnessing device, and a wire feeding device is arranged on the other side above the copper wire rollers , the copper wire on the copper wire roller bypasses the adjacent tension rollers and then passes through the wire feeding device between the copper wire roller and the wire bundling device in turn, and passes through the multiple wires of the wire feeding device. Each of the copper wires can enter the calendering device for calendering after being twisted by the wire-bundling device.

Optionally, the wire harnessing device includes a wire harnessing head, a wire harnessing hole is opened on the wire harnessing head, a wire harnessing disc is provided on the side of the wire harnessing head close to the wire feeding device, and a wire harnessing disc is provided on the wire harnessing disc. There are a plurality of through holes, and a plurality of the copper wires pass through the plurality of corresponding through holes respectively and then pass through the wire harness holes in a concentrated manner.

Optionally, the wire feeding device includes a horizontally arranged wire feeding rod, a plurality of circular holes are evenly arranged on the top of the wire feeding rod, and the number of copper wires passing through each of the circular holes does not exceed one.

Optionally, a tension tester is provided on one side of the tension roller.

Optionally, a take-up reel is provided on the outlet side of the rolling device, and the take-up reel is used for winding the rolled conductor.

The present invention has achieved the following technical effects with respect to the prior art:

At present, when the circular insulated two cores of the conventional circular conductor shielded cable are cabling, after the two circular cores are arranged in parallel, the whole is not round; there will be gaps around the cable, so it needs to be filled with filling materials. The gap is rounded and the filling material itself has a cost. After filling, the outer diameter will become larger, and the subsequent processes, such as the shielding layer and the sheath layer, will use a large amount on the basis of the large outer diameter. The flat conductor of the present invention adopts two similar semi-circular cores to be arranged in parallel. After the two semi-circular cores are butted together, they have a circular structure as a whole, and there is no filling structure. Two semi-circular insulating layers are directly used to form a circle. Therefore, the formed cable can also be rounded, and no filling is required; theoretically, when the same type and specification are designed, the outer diameter will be smaller, the material will be saved in the subsequent process, and the overall cost will be lower.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

1 is a schematic diagram of a cross-sectional structure of a flat conductor shielded cable of the present invention;

2 is a schematic diagram of the layout of the flat conductor shielded cable processing equipment of the present invention;

Fig. 3 is the structural schematic diagram of the wire feeding device of the present invention;

Description of reference numerals: 1-insulation layer, 2-conductor, 3-wrapped tape, 4-braided shielding layer, 5-outer sheath, 6-calendering device, 7-wiring device, 8-copper wire roller, 9 -Copper wire, 10-tension roller, 11-wire feeder, 1101-screw feeder, 1102-round hole, 12-wire bundle.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The purpose of the present invention is to provide a flat conductor shielded cable and its flat conductor processing equipment, so as to solve the above-mentioned problems in the prior art, without the need for a filling layer, reducing the outer diameter and reducing the cost.

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

The present invention provides a flat conductor shielded cable, as shown in FIG. 1 , comprising two symmetrically arranged semicircular insulating layers 1 , a conductor 2 is arranged in the insulating layer 1 , and the conductor 2 is made by twisting a plurality of copper wires The flat conductor, so that the insulating layer 1 and the inner conductor 2 form a semicircular insulating cable core, the two insulating layers 1 are covered with a wrapping tape 3, and the outside of the wrapping tape 3 is provided with a circular cross-section. The outer sheath 5 is provided with a braided shielding layer 4 between the outer sheath 5 and the wrapping tape 3. The present invention adopts two semicircular cores to be twisted to form a circle, so that the roundness is good and the outer diameter is small. The material used in the subsequent process is reduced.

The present invention also provides a flat conductor processing equipment for flat conductor shielded cables, as shown in FIG. 2 and FIG. 3 , including a calendering device 6 , a wire harnessing device 7 is provided on the inlet side of the calendering device 6 , and the wire harnessing device 7 is far from the calendering device 6 . A plurality of copper wire rollers 8 are arranged in parallel at one end of the copper wire roller 8, and copper wire 9 is wound on the copper wire rollers 8 respectively. A tension roller 10 is provided on the side of the copper wire roller 8 away from the wire harnessing device 7, and one side of the tension roller 10 is provided. There is a tension tester to monitor the tension in real time, which is convenient to adjust the tension strength as needed. The tension and wire diameter need to be consistent during the tension process, and the appearance must not be oxidized. The outlet side of the calendering device 6 is provided with a wire take-up reel, which is used for winding the rolled conductor, and a wire feeding device 11 is arranged on the other side above the copper wire roll 8, and the copper wire 9 on the copper wire roll 8 bypasses the phase. Adjacent to the tension roller 10, it passes through the wire feeding device 11 located between the copper wire roller 8 and the wire bundling device 7 in turn. The copper wires 9 passing through the wire feeding device 11 can enter the calendering device 6 after being twisted by the wire bundling device 7. After rolling, the conductor is round and compact after being stranded, and the wire is not rolled after rolling. The use of semi-circular conductors solves the problem of roundness in the subsequent process, reduces costs and improves efficiency.

The wire harnessing device 7 includes a wire harnessing head, a wire harnessing hole is opened on the wire harnessing head, and a wire harnessing disc 12 is provided on the side of the wire harnessing head close to the wire feeding device 11, and the wire harnessing disc 12 is provided with a plurality of through holes, a plurality of copper wires. 9 respectively pass through a plurality of corresponding through holes and then pass through the wire harness holes in a concentrated manner to form the preliminary twisting of the conductors. The wire feeding device 11 includes a horizontally arranged wire feeding rod 1101 . The top of the wire feeding rod 1101 is evenly provided with a plurality of circular holes 1102 , and the number of copper wires 9 passing through each circular hole 1102 is not more than one.

During operation, the copper wires 9 on the plurality of copper wire rollers 8 are stretched through the corresponding tension rollers 10 in turn, and then pass through a circular hole 1102 on the lead screw 1101 in the reverse direction, and then according to the set twisting form, the It passes through the multiple through holes of the wire harness 12 in sequence as needed and then enters the wire harness hole to form a conductor wire bundle, and is rolled in the calendering device 3 by the calendering roller and the air pressure to form a flat conductor, and finally the flat conductor is wound on the wire take-up reel In preparation for the subsequent twisting process of the cable, the flat conductor is covered with a semicircular insulating layer to form an insulating core, the two semicircular insulating cores are symmetrically twisted into a circular structure, and then covered with a wrapping tape 3, and then wrapped. The cable is formed in the braided shielding layer 4 and the outer sheath 5, and the braided shielding layer 4 does not need to be filled, thereby reducing the cost.

In the description of the present invention, it should be noted that the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

In the present invention, specific examples are used to illustrate the principles and implementations of the present invention, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present invention; The idea of the invention will have changes in the specific implementation manner and application range. In conclusion, the contents of this specification should not be construed as limiting the present invention.

Claims (7)

1. A flat conductor shielded cable, characterized in that: it comprises two symmetrically arranged semicircular insulating layers, a conductor is arranged in the insulating layers, and two described insulating layers are covered with wrapping tape, and the An outer sheath with a circular cross section is arranged outside the wrapping tape, and a braided shielding layer is arranged between the outer sheath and the wrapping tape. 2 . The flat conductor shielded cable according to claim 1 , wherein the conductor is a flat conductor formed by twisting a plurality of copper wires. 3 . 3. A flat conductor processing equipment for flat conductor shielded cables, characterized in that it comprises a rolling device, a wire harnessing device is provided on the inlet side of the rolling device, and one end of the wiring harnessing device that is far away from the rolling device is provided with a plurality of in parallel. copper wire rollers, each of which is wound with copper wires, a tension roller is arranged above the copper wire rollers on the side away from the wire tying device, and the other side above the copper wire rollers is provided with a tension roller. Wire device, the copper wire on the copper wire roll bypasses the adjacent tension rolls and then passes through the wire feeding device located between the copper wire roll and the wire bundling device in turn, and passes through the wire feeding device A plurality of the copper wires can enter the calendering device for calendering after being twisted by the wire-bundling device. 4 . The flat conductor processing equipment for flat conductor shielded cables according to claim 3 , wherein the wire harness device comprises a wire harness head, the wire harness head is provided with a wire harness hole, and the wire harness head is close to the One side of the wire feeding device is provided with a wire harness reel, a plurality of through holes are opened on the wire harness reel, and a plurality of the copper wires pass through a plurality of the corresponding through holes and then pass through the bundle wires in a concentrated manner. inside the hole. 5 . The flat conductor processing equipment of the flat conductor shielded cable according to claim 4 , wherein the wire feeding device comprises a horizontally arranged screw rod, and a plurality of circular holes are evenly arranged on the top of the screw rod, 6 . The number of copper wires passing through each of the circular holes is no more than one. 6 . The flat conductor processing equipment for flat conductor shielded cables according to claim 4 , wherein a tension tester is provided on one side of the tension roller. 7 . 7 . The flat conductor processing equipment of the flat conductor shielded cable according to claim 4 , wherein a take-up reel is provided on the outlet side of the rolling device, and the take-up reel is used for winding the rolled conductor. 8 .

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