Injection molding machine for processing plastic products

By installing a heat exchange cavity on the outer wall of the injection molding machine conveying device and adjusting the hot air rate, the problem of incomplete melt coverage during injection molding in thin-walled areas was solved, achieving efficient heat recycling and improving product quality.

CN119458829BActive Publication Date: 2025-10-17SHANGRAO CHENTUO ELECTRONIC TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202411855894.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-10-17
Estimated Expiration
2044-12-17

AI Technical Summary

Technical Problem

When there is a thin-walled area in the injection mold, the material flow resistance is large, resulting in the melt being unable to completely cover the thin-walled area of ​​the mold, causing a short shot problem. In addition, the existing heat recovery method may cause the initial temperature of the melt to decrease, affecting product quality and production efficiency.

Method used

A heat exchange cavity is installed on the outer wall of the conveying device of the injection molding machine. The hot air rate is recovered and adjusted through the suction component to ensure that the melt has a sufficiently high initial temperature when it is extruded, and reduce energy consumption through heat recycling.

Benefits of technology

It avoids the problem of short injection, improves product appearance and mechanical properties, reduces downtime, improves production efficiency, and reduces energy consumption and environmental pollution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of injection molding equipment, and discloses a plastic product processing injection molding machine, which comprises a workbench, a conveying device and a mold closing device are fixedly arranged on the top of the workbench, a feeding cylinder is fixedly arranged on the top of the conveying device, a heat exchange cavity is arranged on the outer wall of the conveying device, the conveying device can heat air in the heat exchange cavity, an air suction assembly is arranged to suck and recycle hot air in the heat exchange cavity, and an adjusting assembly is arranged to adjust the hot air suction rate of the air suction assembly. The hot recovery rate of the conveying device can be adjusted to adapt to different types of molds, the hot recovery effect can be maximized, and the integrity and yield of the molded parts in the mold can be ensured.
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Citation Information

Patent Citations

  • An energy-saving injection molding system and injection molding process

    CN113172824B

  • Waste heat recovering and utilizing system and method of plastic pipe production line

    CN104527013A

  • Injection moulding machine

    EP2851175A1