Extrusion forming device for double-tube heat preservation pipe production

By designing a spiral support and spiral rod, combined with the reverse rotation of the drum and blades, the problem of uneven mixing of waste materials is solved, thereby improving the quality of the insulation pipe and the utilization rate of waste materials.

CN120962984BActive Publication Date: 2026-04-28JIAXING WANGDEFU INSULATION MATERIALS CO LTD
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Patent Information

Application Number
CN202511226808.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-08-29
Publication Date
2026-04-28
Estimated Expiration
2045-08-29

AI Technical Summary

Technical Problem

Existing extrusion molding equipment requires sorting and processing of waste materials before melting, resulting in uneven mixing, low utilization rate of waste materials, and low quality of insulation pipes.

Method used

An extrusion molding device for producing double-tube insulated pipes is adopted. Through the design of the spiral support rod and the spiral rod, the waste material is stirred and mixed. Combined with the reverse rotation of the drum and the blades, the mixing uniformity and efficiency are improved, ensuring the uniform mixing of waste material and raw material solution.

Benefits of technology

It improves the melting effect and mixing uniformity of waste materials, enhances the quality of insulation pipes, increases the utilization rate of waste materials, and solves the problems of uneven mixing and low quality.

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Abstract

The application relates to the technical field of heat-preservation tube extrusion forming, in particular to an extrusion forming device for double-tube heat-preservation tube production, which comprises an extrusion cavity and a heating cylinder, the heating cylinder is fixedly sleeved on the outside of the extrusion cavity, a waste hopper and a raw material cylinder are fixedly installed at the top of the extrusion cavity, the waste hopper and the raw material cylinder are respectively located at the middle end and the tail end of the extrusion cavity, a sealing cover is rotatably installed in the waste hopper, and a plurality of spiral supporting rods are integrally formed on the top of the sealing cover. The spiral supporting rods rotating in the waste hopper can stir the waste material solution when the spiral supporting rods rotate, the melting effect of the waste material is improved, the particles and impurities in the solution are captured, the spiral rod two reciprocatingly moves up and down, the uniformity and efficiency of mixing are improved, the solution driving rotating drum is reversely rotated, the solution in the extrusion cavity is mixed at the rotating drum, and the uniformity of solution mixing is further improved.
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