A defoaming venting mechanism for injection molds

By employing a dual-channel exhaust design and a servo motor-driven rotary rod linkage, the problems of complex structure and uneven cooling efficiency in injection mold exhaust technology have been solved, achieving efficient and flexible exhaust and cooling effects, thereby improving the quality of injection molded products and the continuous operation capability of the equipment.

CN121946782BActive Publication Date: 2026-06-16HANGZHOU SUTUAN MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HANGZHOU SUTUAN MASCH CO LTD
Filing Date
2026-04-03
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing injection mold venting technologies are complex, costly, and have uneven cooling efficiency. They cannot flexibly adjust the venting volume and cooling intensity, and their cooling performance is prone to decline under long-term continuous operation.

Method used

It adopts a staged control dual-channel exhaust design, combining a rectangular air inlet and an array of strip-shaped exhaust outlets, equipped with dual cooling components and filters. The exhaust channel and cooling components can be flexibly switched through a servo motor-driven rotary rod and sealing components, enhancing cooling efficiency and sealing performance.

Benefits of technology

It achieves efficient sealing in the early stage of injection molding and efficient cooling in the later stage, avoids overheating of individual components, improves the quality of injection molded products and the continuous operating efficiency of the equipment, and extends the service life of the cooling components.

✦ Generated by Eureka AI based on patent content.

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    Figure CN121946782B_ABST
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Abstract

The application discloses a bubble-removing and exhausting mechanism of an injection mold, and relates to the technical field of mold exhaust, which comprises a mold body, a pair of exhaust channels, and a cooling box. The mold body is firmly installed on an injection table. The pair of exhaust channels are provided through the bottom region of the mold body. The cooling box is installed on the injection table and is located below the mold body. Two independent cooling cavities are formed in the cooling box. A cooling assembly is fixedly installed in each cooling cavity. The application adopts a two-channel exhaust design controlled in stages, realizes flexible switching between single-cooling assembly operation and double-cooling assembly operation at the same time, meets the processing demand of a small amount of gas in the initial injection stage, can greatly improve the exhaust capacity by simultaneously opening the two channels in the late injection stage, avoids long-time overheating of a single component, and thus guarantees the continuous operation efficiency of the device as a whole and the service life of the cooling assembly.
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Citation Information

Patent Citations

  • CN118181681A

  • CN119704567A