Auxiliary open fire heating device for improving surface quality of extruded plastics

By using an open flame heating device to auxiliary heat the molding die and outlet in the production of wires and cables, the problem of temperature adjustment of the molding die for high molecular weight plastics such as silane cross-linked polyethylene is solved, the extrusion surface quality is improved, production efficiency is increased and Quality defects are avoided.

CN105034320AInactive Publication Date: 2015-11-11SICHUAN JIUZHOU WIRE & CABLE
3 Cites 1 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SICHUAN JIUZHOU WIRE & CABLE
Filing Date
2015-08-28
Publication Date
2015-11-11
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In the production of wires and cables, it is difficult to adjust the molding die temperature of high molecular weight plastics such as silane cross-linked polyethylene by itself, resulting in poor plastic surface quality and quality defects such as burrs, particles, and lumps.

Method used

Design an open flame heating device that includes a bracket base and a flame combustion furnace plate. Through the bracket base and the flame combustion furnace plate, auxiliary open flame heating is performed on the existing extruder. The nozzle and air guide tube are used to directly control the molding die opening and outlet. Heating, adjusting air intake to control temperature.

Benefits of technology

It achieves effective heating of high molecular weight plastics, improves the extrusion surface quality, is simple and easy to use, improves production efficiency, solves the problem of temperature adjustment, and avoids surface quality defects.

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Abstract

The invention discloses an auxiliary open fire heating device for improving the surface quality of extruded plastics. The auxiliary open fire heating device comprises a bracket base device and a fire jetting combustion furnace tray device and is characterized in that the bracket base device comprises a base and a support frame, and the support frame is mounted on the base; the fire jetting combustion furnace tray device comprises a gas inlet valve, a gas guide pipe and nozzle devices; the gas inlet valve is mounted at an inlet of the gas guide pipe; the nozzle devices are mounted on the gas guide pipe; and the fire jetting combustion furnace tray device is mounted on the bracket base device through the support frame. The auxiliary open fire heating device has the advantages of simplicity, convenience and feasibility and also has the advantages of being convenient to use, high in efficiency, high in practicability, light in structure and convenient to mount, disassemble and operate. Generally, when large-molecular-weight plastics of a molecular chain net structure, such as organosilane crosslinked polyethylene, are processed and produced, the auxiliary open fire heating device is directly mounted on a nose of the existing extruder by using magnetic absorption and utilizes open fire to carry out auxiliary open fire heating on a forming die orifice and an extruded wire so as to improve the poor surface quality of the extruded product.
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Citation Information

Patent Citations

  • Detaching device for screw rod and threaded element of extruder

    CN102107512A

  • Device for improving crosslinking quality and speed of silane crosslinked cable

    CN202120680U

  • Supplementary open -fire heating device of plastic extrusion processing surface quality

    CN204955374U

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