Injection structure of a high speed injection molding machine

By using a ring-shaped heat-conducting plate and a water pump system to heat the hopper in a high-speed injection molding machine, and combining it with an air pump and a fan to handle moisture, the problem of material sticking is solved, and the injection rate and operating efficiency of the injection molding machine are improved.

CN224348338UActive Publication Date: 2026-06-12WUXI HAITIAN MACHINERY
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Patent Information

Application Number
CN202521282134.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-20
Publication Date
2026-06-12
Estimated Expiration
2035-06-20

AI Technical Summary

Technical Problem

During the material feeding process in a high-speed injection molding machine, the hot air generated by the heat pipe comes into direct contact with the material, causing it to become damp and sticky, which affects the injection rate.

Method used

The hopper is heated by a ring-shaped heat-conducting plate and a water pump system. Airflow is introduced through an air pump and nozzles to preheat the material. Combined with a fan to remove moisture, heat loss is reduced and material sticking is prevented.

Benefits of technology

Effective preheating of materials prevents them from sticking, increases injection speed, reduces heat loss, and ensures efficient operation of the injection molding machine.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an injection structure for a high-speed injection molding machine, including a hopper, an injection tube, a spiral feed rod, and a heater. An annular heat-conducting plate is uniformly and fixedly connected to one side of the injection tube near the heater. An annular sleeve is provided outside the annular heat-conducting plate and is fixedly connected to one side of the injection tube. A guide pipe is fixedly connected to one side of the annular sleeve and is fixedly connected to the hopper. A spiral guide pipe is fixedly connected inside the hopper and communicates with the guide pipe. A water pump is fixedly connected to one side of the hopper, and a return pipe is fixedly connected to one end of the water pump. The annular sleeve is fixedly connected to one end of the return pipe. Heat-conducting rings are uniformly and fixedly connected inside the hopper. This utility model uses an annular heat-conducting plate inside the annular sleeve to absorb heat from the injection tube with water. The water pump then allows water to enter the spiral guide pipe, heating the hopper. The heat is then absorbed by the heat-conducting rings, resulting in heat inside the hopper and preheating the material, preventing material sticking and reducing the impact on injection.
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Citation Information

Patent Citations

  • High-speed special injection structure of injection molding machine

    CN111941742A