Hot bending die and method for automobile glass processing

By using an autonomous bending drive mechanism and mechanical linkage control, and leveraging the gravity of the automotive glass itself and multi-stage gear transmission, the problems of complex, costly, and inaccurate control of existing mold equipment are solved, achieving high-precision, adaptive hot bending of automotive glass and avoiding edge defects.

CN122167010APending Publication Date: 2026-06-09YIZHENG YAOPI AUTOMOBILE GLASS CO LTD
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Patent Information

Application Number
CN202610530864.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-21
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing automotive glass hot bending molds rely on external power sources, resulting in complex equipment, high costs, high energy consumption, inaccurate control of bending timing, lack of mold adaptability, unreasonable glass edge support, and uncontrollable bending speed, leading to poor forming accuracy and consistency.

Method used

An autonomous bending drive mechanism is adopted, which uses a fuse and mechanical linkage to control the removal of supports when the glass softens. The weight of the automotive glass itself is used as the sole power source. The bending speed is controlled by multi-stage gear transmission and dampers, and the edge support components provide flexible support to achieve an adaptive bending process.

Benefits of technology

It achieves high-precision adaptive bending without external energy consumption, solves the problems of equipment complexity and high cost, improves the control accuracy of the bending process and the consistency of glass forming, and avoids glass edge defects.

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Abstract

The invention belongs to the technical field of hot bending of automobile glass, and particularly relates to a hot bending mold and method for automobile glass machining.The hot bending mold comprises a mold base mechanism and automobile glass, and the mold base mechanism is placed on the ground; a hot bending driving mechanism is placed on the top of the mold base mechanism and used for automatically bending thermalized automobile glass, the two ends of the hot bending driving mechanism are connected with four sets of first supporting mechanisms, the first supporting mechanisms support the automobile glass which is not thermalized, and the first supporting mechanisms are used for supporting the automobile glass which is not thermalized. According to the invention, the fuse wire with a specific fusing temperature is arranged in the first supporting mechanism, and the two ends of the fuse wire are respectively connected with the fourth connecting rod and the first fixing groove, so that accurate temperature-mechanical linkage of support automatic removal and bending starting when the glass is softened to a proper state is realized; the problem that in the prior art, the bending opportunity is judged by depending on an external sensor or manual work, and glass cracks or edge collapse is caused by too early or too late starting is solved.
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