CN215868670U

CN215868670U - Monofilament connecting structure in flexible cable

Info

Publication number: CN215868670U
Application number: CN202122238082.1U
Authority: CN
Inventors: 刘辉; 毛孝丹; 马双山; 常玉琳
Original assignee: Henan Shenghua Cable Group Co ltd
Current assignee: Henan Shenghua Cable Group Co ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-02-18
Anticipated expiration: 2031-09-16

Abstract

The utility model relates to the technical field of cable production, in particular to a monofilament connecting structure in a flexible cable, which has the advantages of large outer diameter, high operation difficulty and low efficiency after the existing monofilaments are connected.

Description

Monofilament connecting structure in flexible cable

Technical Field

The utility model relates to the technical field of cable production, in particular to a monofilament connecting structure in a flexible cable.

Background

The flexible cable conductor cable has a small bending radius, so the flexible cable conductor cable is widely applied to a specific use environment.

The national standard GB/T3956 stipulates that the wire diameter of a single wire of a flexible cable does not exceed a value, and a cable conductor of the flexible cable needs to be composed of a plurality of single wires with thinner wire diameters; in the production process of the flexible cable, a certain number of monofilaments need to be doubled and stranded and then normally stranded so as to meet the number of the monofilaments needed by the cable, but in the doubling and stranding process of the monofilaments, the monofilaments are broken due to various reasons, and at the moment, the broken monofilaments need to be connected.

The following methods are commonly used for monofilament splicing: the first method comprises the following steps: the welding is carried out by resistance welding or cold pressure welding, and the defects are that the welding is not easy because the monofilament is too thin, the operation is not easy for workers, and a large amount of time is wasted in the production process; and the second method comprises the following steps: the two disconnected monofilaments are twisted from the disconnected positions to be connected, and one more monofilament is arranged at the connecting position of the monofilaments after twisting, so that the method is simple to operate, easy to learn and save time, but the extra twisted monofilament is folded into the cable bundle wire, so that the outer diameter of the connecting position of the monofilaments is large, the extra part of the monofilament is easy to warp and leak outside the conductor, and the cable is punctured due to puncture insulation; and the third is that: two sections monofilament that will break twine each other and connect, for guaranteeing good electric conductivity and preventing the secondary disconnection, the winding length is longer usually, therefore in-process of production operation, just need twist the monofilament of too many times, wastes time and energy, influences production efficiency.

For the above reasons and various problems in monofilament connection in different manners, it is necessary to design a new monofilament connection manner for connecting the monofilaments that are broken in the doubled bundle yarns and ensuring the connection effect.

SUMMERY OF THE UTILITY MODEL

Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides the monofilament connecting structure in the flexible cable, and solves the problems of large outer diameter and low efficiency after the existing monofilament is connected.

The technical scheme is that the monofilament connecting structure in the flexible cable comprises a monofilament A and a monofilament B, the ends of the monofilament A and the monofilament B are arranged in a crossing way, the monofilament A is wound on the monofilament B to form an A twisted section, the monofilament B is wound on the monofilament A to form a B twisted section, the single wires A and the single wires B form an overlapping section between the twisting section A and the twisting section B, the overlapping section is not twisted, the structure has relatively small increase of the outer diameter after the single filaments are connected, and the outer diameter of the overlapping section is smaller than that of the twisting section, compared with the way that two single filaments are mutually wound and connected, the structure reduces the total winding length and improves the efficiency, in addition, considering the condition that more than one single filament is broken at the same position, when different monofilaments which are snapped at the same position are connected, the purpose of staggering the twisted sections in different monofilament connecting structures is achieved by adjusting the length and the position of the twisted sections, so that the outer diameter of the cable is prevented from exceeding the national standard.

The structure has the advantages that the monofilaments A and the monofilaments B are arranged in a crossed mode, the overlapped sections are formed by taking the crossed points as centers, winding processes of the monofilaments A and the monofilaments B can be carried out simultaneously, time is saved, and efficiency is improved.

And the step of winding the monofilament A and the monofilament B can be finished by twisting the monofilaments with the thumbs of workers, so that the method is simple and easy to learn, convenient to operate, capable of being operated by workers with little training and capable of saving the monofilament connecting time.

Furthermore, the length of the twisted section A and the twisted section B is 10-15 mm, the length of the overlapped section is 15-20 mm, the total twisted length is 20-30 mm after the single wires A and the single wires B are connected, the total length of the connecting structure is 35-50 mm, in order to ensure good contact after the single wires are connected in the prior art, the length of the two single wires which are mutually wound is usually 40mm, and the total twisted length is far larger than that of the scheme.

The technical effect of the utility model is that the single wire connecting structure can still ensure the proper outer diameter of the joint under the condition that a plurality of single wires are broken at the same position; the length of the winding at the joint is short, but the total length of the connection of the two monofilaments is long, so that the connection is tight and firm, and the subsequent production cannot be easily pulled open; the connection method is simple and easy to operate, and the production efficiency is high.

Drawings

FIG. 1 is a schematic diagram of the present invention.

Fig. 2 is a schematic diagram of a second connection structure in the background art.

Fig. 3 is a schematic diagram of a third connection structure in the background art.

In the figure: 1, A twisting section, 2, overlapping section and 3, B twisting section.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The first embodiment is as follows: as shown in figure 1, the monofilament connecting structure in the flexible cable comprises a monofilament A and a monofilament B, wherein the ends of the monofilament A and the monofilament B are crossed, the monofilament A is wound on the monofilament B to form an A twisted section 1, the monofilament B is wound on the monofilament A to form a B twisted section 3, the monofilaments a and B form an overlap section 2 between the twisted sections a 1 and B3, the structure has relatively small increase of the outer diameter after the single filaments are connected, and the outer diameter of the overlapping section 2 is smaller than that of the twisting section 3, compared with the way that two single filaments are mutually wound and connected, the structure reduces the total winding length and improves the efficiency, in addition, considering the condition that more than one single filament is broken at the same position, when different monofilaments which are snapped at the same position are connected, the purpose of staggering the twisted sections in different monofilament connecting structures is achieved by adjusting the length and the position of the twisted sections, so that the outer diameter of the cable is prevented from exceeding the national standard.

Example two: on the basis of the first embodiment, the single wires A and the single wires B are arranged in a crossed mode, the overlapped sections are formed by taking the crossed points as centers, the winding process of the single wires A and the winding process of the single wires B can be carried out simultaneously, time is saved, efficiency is improved, the step of winding the single wires A and the single wires B can be completed by twisting the single wires with thumbs of workers, the operation is simple and easy to learn, the operation is convenient, the operation can be carried out by the workers with training, and the single wire connection time is saved.

On the basis of the embodiment, the length of the A twisting section 1 and the length of the B twisting section 3 are between 10mm and 15mm, the length of the overlapping section 2 is between 15mm and 20mm, the total twisting length is between 20mm and 30mm after the single wires A and B are connected, and the total length of the connecting structure is between 35mm and 50 mm.

The present invention has been described in detail with reference to the specific embodiments and examples, but these are not intended to limit the present invention. Many variations and modifications may be made by one of ordinary skill in the art without departing from the principles of the present invention, which should also be considered as within the scope of the present invention.

Claims

1. Monofilament connection structure in flexible cable, including monofilament A and monofilament B, characterized in that, monofilament A and monofilament B tip are crossing arrangement, monofilament A is around establishing and forming A transposition section (1) on monofilament B, monofilament B is around establishing and forming B transposition section (3) on monofilament A, monofilament A and monofilament B form overlap section (2) between A transposition section (1) and B transposition section (3).

2. Monofilament connection in a flexible cable according to claim 1, characterized in that the a-lay section (1) and the B-lay section (3) have a length of between 10mm and 15mm and the overlap section (2) has a length of between 15mm and 20 mm.