Dual-colored cable three-layer co-extrusion device

A three-layer co-extrusion and cable technology, used in household components, household appliances, other household appliances, etc., can solve problems such as prolonging time, distinguishing adverse effects, and inconvenient product appearance, ensuring structural stability and improving convenience. Effect

Inactive Publication Date: 2020-06-19
常州市美华电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The solution described in the above-mentioned invention patent is the technical solution of using the same co-extrusion equipment for simultaneous technology and cooling processing to form an insulating sleeve. Compared with the most traditional technical solution of batch extrusion and cooling processing, this solution has greatly improved production. efficiency, but when the scheme described in the above invention is applied to the production process of two-color cables, it is still necessary to coat the outer shielding layer in th...

Method used

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  • Dual-colored cable three-layer co-extrusion device
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  • Dual-colored cable three-layer co-extrusion device

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Embodiment 1

[0057] Reference figure 1 with figure 2 , Is a two-color cable three-layer co-extrusion device disclosed in the present invention, which includes a co-extrusion assembly 1 and a feeding assembly 3 connected to the co-extrusion assembly 1. The feeding assembly 3 includes an inner shielding layer material box 31 and an insulating layer material Box 32, first-level outer shielding layer tank 33, and second-level outer shielding layer tank 34. The co-extrusion assembly 1 is respectively provided with an inner shielding layer feeding pipe 121 for communicating with the inner shielding layer tank 31, and The insulating layer feeding pipe 141 connected to the insulating layer tank 32, the first-level outer shielding layer feeding pipe 161 for communicating with the first-level outer shielding layer tank 33, and the first-level outer shielding layer feeding pipe 161 for communicating with the second-level outer shielding layer tank 34 Secondary outer shielding layer feeding pipe 162. ...

Embodiment 2

[0081] The difference between this embodiment and the first embodiment is that the angle between the two planes formed by the longitudinal centerline of the two partitions 165 and the center axis of the secondary shunt mold 15 is 180°, and finally The boundary line between the first-level outer shielding layer and the second-level outer shielding layer formed on the outer shielding layer is clear and straight. The average number of variegated spots visible to the naked eye is 3 per 10 meters of the cable.

Embodiment 3

[0083] The difference between this embodiment and the first embodiment is that the included angle between the two planes formed by the longitudinal center lines of the two partitions 165 and the center axis of the secondary shunt mold 15 is 90°, one of which is The central angle of the first-level outer shielding layer is 90°, and the central angle of the second-level outer shielding layer is 270°. The boundary line between the upper-level outer shielding layer and the second-level outer shielding layer of the final outer shielding layer is fuzzy and existing Twisting phenomenon, the average number of noise points visible to the naked eye is 12 per 10 meters of the cable.

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Abstract

The invention relates to a dual-colored cable three-layer co-extrusion device. The dual-colored cable three-layer co-extrusion device comprises a co-extrusion assembly and a material supply assembly,wherein the co-extrusion assembly sequentially comprises an inner mould core, a primary runner, a primary distributing module, a secondary runner, a secondary distributing module, a tertiary runner and a tertiary distributing mould; the primary runner, the secondary runner and the tertiary runner separately communicate with the material supply assembly; the two ends of the co-extrusion assembly are provided with fixed assemblies; a joint of the tertiary runner and the co-extrusion assembly is separately provided with a primary outer shielding layer charge tube and a secondary outer shielding layer charge tube; the tertiary runner is internally divided into a mixing section and a forming section in a material flow direction in sequence by taking the primary outer shielding layer charge tubeas a support point; length, along the center axis of the tertiary distributing mould, of the forming section is 3-5 millimeters; a partition part is arranged in the mixing section for dividing the mixing section into a primary outer shielding layer mixing region and a secondary outer shielding layer mixing region. The dual-colored cable three-layer co-extrusion deice has the effect of effectivelyimproving stability of the cable outer shielding layers.

Description

Technical field [0001] The invention relates to the technical field of wire and cable production and processing, in particular to a three-layer co-extrusion device for two-color cables. Background technique [0002] At present, in the wire and cable industry, there are some special insulated cables that need to be marked on the outer surface to facilitate quick distinction during use. For example, the outer surface of the cable specially used for grounding uses a combination of yellow and green. Distinguish, that is, the yellow-green ground wire is often said. By color marking the appearance of a specific cable, or changing the ratio of different colors on the outer surface of the cable, the recognizable degree of cables for different purposes can be effectively improved. In some occasions where there are many cables and the security system is more complicated, the use of the above-mentioned different methods can greatly improve the convenience of cable installation, use and mai...

Claims

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Application Information

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IPC IPC(8): B29C48/335B29C48/49B29C48/06B29C48/17B29C48/18B29L31/34
CPCB29L2031/3462B29C48/06B29C48/17B29C48/18B29C48/336B29C48/338B29C48/49
Inventor 汤俊毅黄成
Owner 常州市美华电器有限公司
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