Building construction cable continuous extrusion molding machine

Abstract

The invention discloses a building construction cable continuous extrusion molding machine that comprises a melting box, a heating device, a first outer sheave mechanism, a driving gear, a driven gear, a booster pump, a coating device and an adjusting traction device. A hot gas located at the upper side in the melting box is injected into a molten material through an air intake so that the molten material is heated uniformly to prevent a case that a conventional heating device causes high temperature at a position close to heating device and low temperature at a position away from the heating device and to improve the melting quality of a raw material. Since the rotation of a rotating column and the intermittent traction of the adjusting traction device are synchronous, a wire core can be completely coated. Thus, a case is avoided that too fast or too slow speed of the traction device leads to too little or too much insulating material coating the wire core, and product quality is improved. By adjusting a tightening bolt, the height of a pinch roller can be adjusted. Thus, adjustment is performed according to needs of different wire diameters. By means of surface contact traction, traction efficiency is improved and a cable is protected.

Description

technical field [0001] The invention relates to the technical field of construction cables, in particular to a continuous cable extrusion molding machine for building construction. Background technique [0002] At present, most of the insulating packaging layers of construction wires and cables are extrusion and longitudinal packaging processes. The commonly used special molds for cable extrusion are mainly composed of injection molding cores and mold sleeves. The cores are set inside the machine head and inside the machine head. To form a gap, the die set is placed at the extrusion port of the machine head to control the thickness of the insulating layer covered by the cable. [0003] In the production process of cables, the traditional extrusion molding machine has the following defects: 1. It is necessary to melt the raw material of the insulating packaging layer in the extruder before it can be coated with the cable core through the molding extrusion die, and extrusion ...

AI Technical Summary

Problems solved by technology

[0003] In the production process of cables, the traditional extrusion molding machine has the following defects: 1. It is necessary to melt the raw material of the insulating packaging layer in the extruder before it can be coated with the cable core through the molding extrusion die, and extrusion After the machine melts the insulating packaging layer, it is often difficult to adjust the appropriate traction speed, and it is easy to cause the traction device to be too fast or too slow, resulting in too little or too much insulating material covered by the wire core; 2. The traditional heating device uses When the temperature near the heating device is high and the temperature is far away from the heating device

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