Injection molding production equipment for plastic pipes of automobile parts

By introducing dynamic vibration injection mechanism and piston structure into the injection molding production equipment of automotive parts plastic pipes, the problems of complex structures, uneven spraying and residual injection liquid in existing equipment are solved, and the uniform flow and distribution of injection molding melt is achieved, and product quality and production efficiency are improved.

CN119635992AActive Publication Date: 2025-03-18ZHEJIANG HENGDAO TECH
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Patent Information

Application Number
CN202510017363.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-06
Publication Date
2025-03-18
Estimated Expiration
2045-01-06

AI Technical Summary

Technical Problem

The existing injection molding and production equipment for automotive parts plastic pipes has problems such as complex structure, uneven spraying of mold release agents, residual injection molding liquid, and appearance defects, and high viscosity plastic melt is difficult to completely flow out, resulting in defects such as flow marks and spots.

Method used

The dynamic vibration injection mechanism is adopted to drive the injection molding skeleton to rotate through the active tooth ring disc and driven gear set to ensure that the flow direction of the injection molding melt is not fixed, breaking the unstable flow mode, and generating vibration force through the elastic parts to enhance the shear thinning effect. At the same time, the adjustment rod and the storage cylinder are introduced to form a piston structure to remove residual liquid from the nozzle and improve material utilization.

Benefits of technology

The uniform flow and distribution of injection molded melt is achieved, the internal defects of the product are reduced, the appearance quality and physical performance are improved, the strict quality standards of automobile parts are met, and the production efficiency and material utilization are improved.

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Abstract

The invention discloses automobile part plastic pipe injection molding production equipment, and relates to the technical field of injection molding production, the automobile part plastic pipe injection molding production equipment comprises a rack main body, a driving module is mounted below the rack main body, a dynamic vibration injection mechanism is arranged above the driving module, and the dynamic vibration injection mechanism is used for continuously and dynamically guiding injection molding melt to flow; the dynamic vibration injection mechanism comprises a driving gear ring disc installed above the driving module, the injection molding framework can continuously keep rotating in the injection molding process, then it is guaranteed that the flowing direction of injection molding melt in the cavity shell is not fixed any more, the dynamic flowing mode is beneficial to breaking through an unstable flowing mode formed in the flowing process of the melt, and the stability of the injection molding process is improved. The problems such as boundary layer separation in laminar flow and the like are solved, the flowing direction of the melt is continuously driven through directional rotation, the pressure distribution of the melt in the cavity shell can be more balanced, the phenomenon that the melt is not uniformly distributed due to too high or too low local pressure is reduced, and the uniform melt distribution is beneficial to improving the density uniformity of a product.
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