Preformed die plate for reinforcing sidewall

By designing a pre-mouth plate with a sidewall glue runner, a sub-mouth glue runner and a reinforced glue runner, and setting up a lifting surface thereon to form a buffer zone, the problem of excessive pressure of reinforced glue extrusion in tire production is solved, and production efficiency is improved.

CN222681710UActive Publication Date: 2025-03-28PRINX CHENGSHAN (SHANDONG) TIRE COMPANY LTD
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Patent Information

Application Number
CN202420713810.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-09
Publication Date
2025-03-28
Estimated Expiration
2034-04-09

AI Technical Summary

Technical Problem

In tire production, due to the need to adjust the position and thickness of the reinforcement glue, conventional pre-mouth plates cannot effectively adapt to the tire needs of different specifications, resulting in excessive extrusion pressure and low production efficiency.

Method used

A pre-mouth plate that reinforces the sidewall is designed, and the sidewall rubber runner, a sub-mouth rubber runner and a reinforced rubber runner are opened on the main board. The first lifting surface and the second lifting surface are arranged to form a buffer zone to reduce the relative pressure of the glue.

Benefits of technology

By setting up a lifting surface, an interlaced surface is formed, which reduces the relative pressure of the rubber, increases the extrusion speed of the rubber, and improves production efficiency.

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Abstract

The utility model provides a preformed die plate for reinforcing a sidewall, which solves the problems that when an existing preformed die is used for extruding, since sidewall rubber and seam allowance rubber directly enter the die plate through the preformed die, compared with the existing preformed die, the reinforcing rubber needs a higher rotating speed to reach an expected thickness, and particularly, when the extruding speed is increased, the rotating speed also needs to be correspondingly increased, so that the manufacturing cost is low. The technical problems that when the extrusion pressure reaches the limit value, the speed cannot be continuously increased, and the production efficiency is low are solved, and the method can be widely applied to the field of tire manufacturing. The specific main plate is provided with a sidewall rubber runner, a seam allowance rubber runner and a reinforcing rubber runner, the outlet bottom edges of the sidewall rubber runner and the seam allowance rubber runner are located on the same horizontal plane, and the lower surface of the sidewall rubber runner is provided with a first lifting surface higher than the surface of the sidewall rubber runner; and a second lifting surface higher than the surface of the seam allowance rubber runner is arranged on the lower surface of the seam allowance rubber runner.
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