Movable cable of resistance to drag and scraping prevention and extrusion forming mould device thereof

An extrusion molding and mold technology, applied in the field of mobile cables and their production molds, can solve the problems of easy dragging and scratching, poor safety, and short service life of mobile cables, and achieves improved longitudinal tensile capacity, low cost, and service life. long effect

Inactive Publication Date: 2013-06-12
广东中宝联合电缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the deficiencies of current conventional mobile cables with flexible structures, such as easy dragging and damage, poor safety, and short service lif

Method used

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  • Movable cable of resistance to drag and scraping prevention and extrusion forming mould device thereof
  • Movable cable of resistance to drag and scraping prevention and extrusion forming mould device thereof
  • Movable cable of resistance to drag and scraping prevention and extrusion forming mould device thereof

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Effect test

Embodiment 1

[0018] like figure 1 , figure 2 As shown, a drag-resistant and scratch-resistant mobile cable according to the present invention includes several strands of soft copper conductors 1, insulating coating layers 2, filling ropes 3, rubber and plastic inner lining layers 4, and aramid braided reinforcement layers 5. Elastic and soft outer sheath layer 6. Wear-resistant rubber and plastic ribs 7, wherein the number of strands of the soft copper conductor 1 can be set according to the model specification of the entire mobile cable, without specific restrictions, and figure 1 and figure 2 The scheme shown in is an example structure with five soft copper conductors. The insulating coating layer 2 is coated on each strand of soft copper conductor 1, and the filling rope 3 is arranged in the hollow gap surrounded by the insulating coating layer 2 of each strand of soft copper conductor 1. The filling rope 3 It can not only enhance the longitudinal tensile capacity of the cable, but...

Embodiment 2

[0020] like image 3 Shown, a kind of extruding molding die device that makes the elastic soft outer sheath layer and wear-resistant rubber and plastic rib of above-mentioned anti-dragging anti-scratch mobile cable, it comprises the extrusion molding of elastic soft outer sheath layer 6 Mold 9 after extrusion molding of front mold 8 and wear-resistant rubber and plastic rib 7, wherein

[0021] The pre-extrusion mold 8 is composed of a female mold 81 and a male mold 82. The pre-extrusion mold 8 is basically the same as a general cable rubber extrusion mold, so it will not be described in detail. In this embodiment, the pre-extrusion mold 8 is introduced together for description, mainly because in practice, the pre-extrusion mold 8 and the extrusion mold 9 work in an assembly line. are interrelated.

[0022] like image 3 As shown, the mold 9 after extrusion molding includes a mold base 91, an inner mold 92, a front bearing 93, a rear bearing 94, a ratchet 95, a gland 96 and ...

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Abstract

The invention relates to a movable cable of resistance to drag and scraping prevention and an extrusion forming mould device of the movable cable of resistance to drag and scraping prevention. The movable cable of resistance to drag and scraping prevention and an extrusion forming mould device of the movable cable of resistance to drag and scraping prevention are characterized in that the movable cable is composed of a plurality of soft qualitative copper conductor, an insulation coated layer, a filling rope, a rubber and plastic lining layer, an aramid fiber weaving strengthening layer, an elastic soft outer protecting sleeve layer, a wear-resistant rubber and plastic rib strip and the like. The extrusion forming mould device is composed of an extrusion forming front mould with the elastic soft outer protecting sleeve layer and an extrusion forming back mould of the wear-resistant rubber and plastic rib strip. The extrusion forming back mould of the wear-resistant rubber and plastic rib strip is composed of a mould seat, an inner mould, a front bearing, a back bearing, a ratchet wheel, a pressing cover and an electric heating coil. A rubber and plastic rib strip with a spiral shaped structure is arranged on the surface of a movable cable protecting sleeve layer. The movable cable of resistance to drag and scraping prevention is pulled and moved, a cable body is hung in the air from the ground, thus occurrence of scraping and breakage that the cable body is directly rubbed with the ground and hard objects is avoided. A contact area of the cable and the ground is greatly reduced at the same time, thus labor intensity when the cable is constructed and moved is relieved with a large degree.

Description

technical field [0001] The invention relates to a moving cable and a mold for making the same. Background technique [0002] At present, according to the way of laying and use, wires and cables can be divided into two types: fixed laying cables and mobile cables temporarily laid on demand. In the process of use, the fixed laying method generally does not cause mechanical damage to the wire and cable, while the mobile laying method will cause the moving cable to be frequently dragged. Although the structure of the moving cable is superior in softness and bending performance compared with the fixed laying cable, but Frequent scraping between the cable sheath layer and the ground or hard objects on the construction site can easily lead to scratches on the cable sheath and damage to the internal insulation layer, followed by breakdown and short circuit, resulting in premature scrapping of the mobile cable, resulting in an extremely short service life , The cables need to be fre...

Claims

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Application Information

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IPC IPC(8): H01B7/17H01B7/18B29C47/20B29C48/32
Inventor 陆钻贞林永忠
Owner 广东中宝联合电缆有限公司
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