A run-flat tire secondary groove forming drum
By dividing the drum shoulder of the building drum into three independent sections, the problem of the existing technology requiring the drum shoulder to be disassembled as a whole is solved, efficient production when replacing tires of different models is achieved, and work efficiency is improved.
CN115583067BActive Publication Date: 2025-09-30ZHONGCE RUBBER GRP CO LTD +1
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Patent Information
- Application Number
- CN202211137715.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-09-19
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2042-09-19
AI Technical Summary
Technical Problem
The drum shoulder of the existing run-flat tire building drum is an integrated structure, which means that the entire drum needs to be disassembled when changing to a different groove width, reducing tire production efficiency.
Method used
The drum shoulder is divided into three independent sections, including the inner drum shoulder, the middle drum shoulder and the outer drum shoulder. By replacing the middle drum shoulder and/or the center belt of different widths, the production of different types of tires can be achieved, reducing the workload of disassembly and assembly.
Benefits of technology
It improves the efficiency of tire production, reduces the workload of disassembly and assembly, and adapts to the production needs of different types of tires.
✦ Generated by Eureka AI based on patent content.
Abstract
The present invention relates to the field of tire manufacturing, and in particular to a run-flat tire secondary groove forming drum, comprising a drum body, a central belt provided on the outer circumference of the drum body, and mutually symmetrical drum shoulders provided on both sides of the central belt in the axial direction. In the unlocked state, the drum shoulders can move axially on the drum body; a radially inwardly recessed groove is provided on the outer circumference of the drum shoulders; the drum shoulders include an inner drum shoulder, a middle drum shoulder, and an outer drum shoulder distributed in sequence axially outward, and the inner drum shoulder, middle drum shoulder, and outer drum shoulder are independent of each other; the groove is located at the connection between the inner drum shoulder, middle drum shoulder, and outer drum shoulder, and the groove is divided into three sections, the bottom of the groove is at least partially located on the middle drum shoulder, and the two side walls of the groove are respectively located on the inner drum shoulder and the outer drum shoulder. The present invention divides the originally integrated drum shoulder into a three-section structure that is independent of each other, so that when different tires need to be produced, the drum shoulders at the corresponding positions can be replaced without the need to remove the drum shoulders as a whole, thereby reducing the workload of disassembly and assembly.
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