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Manufacturing method of cable having waterproof outer sheath structure

A production method and cable technology, applied in the direction of insulating conductors/cables, etc., can solve the problems of difficult waterproof sealing of connecting lines, equipment damage, electric shock safety, etc., and achieve the effect of good practical value, easy production, and preventing glue from falling off.

Active Publication Date: 2015-12-23
SHENZHEN NS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention proposes a method for making a cable with a waterproof coating structure. The main technical problem to be solved is that when the outdoor wire and cable are connected to equipment at both ends, water vapor or rainwater can easily enter the equipment through the cutout of the wire material processing coating. Cause equipment damage and electric shock safety, but it is difficult to waterproof and seal the connection lines between equipment

Method used

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  • Manufacturing method of cable having waterproof outer sheath structure
  • Manufacturing method of cable having waterproof outer sheath structure
  • Manufacturing method of cable having waterproof outer sheath structure

Examples

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Comparison scheme
Effect test

Embodiment 1

[0021] A kind of manufacture method of the cable with waterproof coating structure, see figure 2 and image 3 , the cable includes a conductor 1, a core wire 2 wrapping the conductor 1, and a waterproof outer layer 3 after the wrapping core wire is twisted into a cable, which includes the following steps:

[0022] Step 1: If figure 2 As shown, the cable is peeled at the waterproof cut, and the waterproof outer layer 3 is peeled off to expose the insulated core wire 2 inside, and the insulated core wire cannot be damaged when peeling;

[0023] Step 2: Put a heat-shrinkable tube on the waterproof cutout of the cable, place the heat-shrinkable tube on the waterproof cutout of the cable and bake it, so that the heat-shrinkable tube is heat-shrunk into a trumpet shape, forming a Horn opening 31;

[0024] Step 3: Carry out glue filling and sealing through the opening 31 of the horn, and the glue must fill the mouth of the horn. The amount of glue filling should not overflow or...

Embodiment 2

[0026] In order to prevent the inner core wire from being damaged when heating the cable, in this embodiment, refer to Figure 4 , before the heat-shrinkable tube is put on, a layer of detachable protective layer 4 is firstly put on the waterproof cut of the cable. Specifically, step 2 in the embodiment can be replaced by the following process: First, a layer of detachable protective layer 4 is sheathed at the waterproof incision of the cable, and the protective layer 4 is sheathed between the core wires at the waterproof incision. Then, the heat-shrinkable tube is put through the waterproof cut of the cable, and the heat-shrinkable tube is heat-baked to make it heat-shrink to form a horn opening 31; then the protective layer 4 is removed. Wherein, the protective layer must not shrink when exposed to heat, or be higher than the melting point of the heat-shrinkable tube, and the protective layer will not be affected when the heat-shrinkable tube shrinks. At the same time, the ...

Embodiment 3

[0029] For convenience, see Figure 5 , the cable also includes a detachable clamping part 5, the clamping part 5 has a tubular sleeve 51, the end of the tubular sleeve 51 has a trumpet-shaped opening 52; After the waterproof incision, the clamping part 5 is sleeved outside the heat-shrinkable tube, and then the heat-shrinkable tube is heat-baked so that it is heat-shrunk to form a horn opening, which is connected to the end of the tubular sleeve 51 The trumpet-shaped opening 52 coincides; wherein, the diameter of the tubular sleeve 51 of the clamping part 5 is slightly larger than the diameter of the heat-shrinkable tube, so that the clamping part is sleeved outside the heat-shrinkable tube and will not fall off. In this implementation example, before the heat-shrinkable tube is put on, a layer of detachable protective layer 4 is firstly put on the waterproof cut of the cable.

[0030] In this way, when the heat-shrinkable tube is heat-shrunk into a trumpet shape, it coincid...

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Abstract

The invention discloses a manufacturing method of a cable having a waterproof outer sheath structure. On the basis of the novel process and structure, the waterproof cable comprises conductors coated with core wire insulating layers; the core wires are twisted to form a cable unit and the cable unit is coated with a waterproof outer sheath layer. A heat shrink tube sleeves a waterproof cutting opening of the waterproof outer sheath layer; and thermal drying process is carried out on the heat shrink tube to form a horn shape at the waterproof cutting opening, thereby carrying out glue pouring for sealing. According to the invention, glue pouring is carried out by using the horn-shaped opening and the sealing glue coated at the surface of the outer sheath opening of the cable can be protected effectively by using the heat shrink tube, thereby realizing the insulation effect. Meanwhile, the glue shedding can be prevented. The waterproof testing is carried out: the side core wire is blown by 3-KG air pressure without any water leakage. The process is simple; the manufacturing operation can be carried out easily; and the practical value is great.

Description

technical field [0001] The invention relates to a waterproof process for a waterproof cable, in particular to a method for manufacturing a cable structure with a waterproof coating. Background technique [0002] Cables include optical cables, cables, etc., which have many uses, and are mainly used for multiple functions such as control installation, connection equipment, and power transmission. In some occasions, for example, when outdoor wires and cables are connected to the equipment at both ends, water vapor or rainwater can easily enter the equipment at both ends through the incision outside the wire processing, causing equipment damage and electric shock safety. Therefore, it is generally necessary to waterproof the cable. [0003] There are several existing waterproof methods, one is to mechanically add some sheaths for protection, but this kind of sheath is difficult to meet the protection requirements of IP67 due to the assembly gap; the other is to use O-ring sealin...

Claims

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Application Information

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IPC IPC(8): H01B13/32
Inventor 蒋胜雄
Owner SHENZHEN NS TECH
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