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Extrusion-type mold and method for preparing special-shaped conductor cable by extrusion-type mold

A conductor cable, extrusion type technology, applied in the direction of conductor/cable insulation, conductor, insulated conductor, etc., can solve the phenomenon that single wire is easy to be broken or pulled, the take-up reel is easy to scatter, strands are scattered, etc. problems, to avoid scattered flowers, save filling materials and sheath materials, and reduce the total cost of cables

Inactive Publication Date: 2014-02-26
BAIYIN NONFERROUS GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The main technical problem to be solved by the present invention is that during the compaction process of the five types of special-shaped conductors, the compaction coefficient is small, only 10-20%; Scattering phenomenon in the process of re-twisting and extrusion of strands, and problems such as insulation cracking caused by torsional stress
Avoid the phenomenon of scattered flowers in the process of re-twisting and extrusion of strands, and solve the problem of easy loosening of conductors after pressing to the take-up reel, thereby reducing the cost of cable quality

Method used

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  • Extrusion-type mold and method for preparing special-shaped conductor cable by extrusion-type mold
  • Extrusion-type mold and method for preparing special-shaped conductor cable by extrusion-type mold
  • Extrusion-type mold and method for preparing special-shaped conductor cable by extrusion-type mold

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Embodiment 1

[0038] Please refer to figure 1 , 2 , 3, 4, 5, 6, the extrusion mold for cable is made of "no mouth" mold core and any kind of mold sleeve. Extrusion molds rely on pressure to achieve the final shape of the product. The rubber is extruded directly on the wire core and cable core through the extrusion of the mold, and the extruded plastic layer has a tight and firm structure. The extruded rubber can be embedded in the gap of the wire core or cable core, and it is tightly combined with the product without gaps. The insulation strength of the extruded cladding is reliable, and the outer surface is smooth and smooth. However, it is not easy to adjust the eccentricity of the mold, and it is easy to wear, especially when the wire core and cable core are bent, it is easy to cause serious eccentricity of the rubber layer; the quality of the product is highly dependent on the mold, and the extrusion of rubber requires the accuracy of the matching mold. high. Because the matching ang...

Embodiment 2

[0062] 1) Selection of mold

[0063] The five types of special-shaped conductors adopt the designed extrusion mold with a circular core and a circular mold sleeve when using plastic insulation. When the five types of special-shaped conductors are insulated with rubber, the mold core is circular and the mold sleeve is an extruded mold sleeve with an oval shape.

[0064] 2) Adjust the conductor pressing wheel to the preset angle, press the five types of conductors 1 into the required angle (such as 90°C, 120°C, etc.), and then use polyester film 2 to wrap without overlapping 50% gap , thus forming the figure 1 Five classes of shaped conductors are shown.

[0065] 3) Cabled

[0066] Improve the insulated wire core cable mold and flow channel, and pre-twist in advance according to experience, so that the insulation thickness covered on the arc edge of the shaped conductor is close to the calculated value to the greatest extent, so as to obtain the minimum cable and finished pro...

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Abstract

The invention discloses an extrusion-type mold for rubber insulated cable extrusion and a method for preparing a special-shaped conductor cable by the extrusion-type mold, and belongs to the technical field of wire cable manufacture. Through the extrusion-type mold, five types of special-shaped conductor insulated cable cores are processed to form the round special-shaped conductor cable so that unwrapping of the cable cores in compound stranding extrusion is avoided and the problem that the molded conductor cable fed to a take-up reel is easily unwrapped, so that a cable quality cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of electric wire and cable manufacturing, in particular to the technical field of a special-shaped conductor cable and an extrusion die for rubber insulation extrusion. Background technique [0002] The insulated cores of the five types of special-shaped conductors are just formed into a circle after being cabled, which can greatly reduce the cable filling material of the cable core, and at the same time reduce the outer diameter of the cable, so that the material consumption in the subsequent process can also be reduced, thereby reducing the manufacturing cost of the cable. Cost, to meet the high-quality, low-cost requirements of the modern market for cable products. However, during the compaction process of the five types of special-shaped conductors, the compaction coefficient is small, only 10-20%. Moreover, the monofilaments of the five types of conductors are easy to be broken or broken during the com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/20H01B13/14H01B7/00B29C48/32
CPCB29C48/30B29C48/32H01B7/0009H01B7/0275H01B13/00H01B13/14
Inventor 张杰薛天俊高炳祥岳永莹杜富王璐
Owner BAIYIN NONFERROUS GROUP
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