An automatic hot press forming production equipment for oil seal

By adaptively adjusting the holding pressure, the molding quality problem of oil seal hot pressing equipment when processing materials with different shrinkage properties is solved, and efficient and stable oil seal molding is achieved.

CN122425882APending Publication Date: 2026-07-21LAISHIDE (NINGBO) POWER TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
LAISHIDE (NINGBO) POWER TECH CO LTD
Filing Date
2026-05-16
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing oil-sealed hot pressing equipment cannot adaptively adjust the holding pressure when processing materials with different shrinkage rates, resulting in molding quality problems, such as shrinkage marks, voids or flash in high-shrinkage materials, and internal stress and deformation in low-shrinkage materials.

Method used

It employs a pressure-holding component, an execution component, an adjustment component, and a control component, which adaptively adjust the pressure-holding pressure according to the molding pressure, material shrinkage, and mold temperature, ensuring that the pressure is within a suitable range, preventing overflow or mold damage, and adapting to different material and temperature conditions.

Benefits of technology

It improves the quality of hot pressing of oil seals, prevents defects such as shrinkage marks, voids, flash, and internal stress, and ensures the dimensional stability and integrity of the product.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122425882A_ABST
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Abstract

The application relates to the technical field of hot pressing of oil seals, and particularly discloses an automatic hot-pressing forming production device for oil seals, which comprises a device body and further comprises a pressure maintaining assembly arranged on one side of the device body; the pressure maintaining assembly is capable of self-adaptingly adjusting the pressure maintaining pressure according to the forming pressure, and further compensating and adjusting the pressure maintaining pressure according to different materials with different shrinkage; the pressure maintaining assembly can self-adaptively adjust the pressure maintaining pressure according to the forming pressure, so that the material overflow or the damage of the mold caused by the excessively high pressure maintaining pressure is prevented, and the material shrinkage cannot be compensated due to the excessively low pressure maintaining pressure; and the pressure maintaining pressure can be further compensated and adjusted according to the materials with different shrinkage, so that the pressure maintaining of the oil seal materials with different shrinkage is adapted, and the hot-pressing forming quality of the oil seal is improved.
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