Anti-falling steel sheet structure and steel sheet embedding method

Abstract

The invention belongs to the technical field of tire mold steel sheets, and discloses an anti-falling steel sheet structure and a steel sheet embedding method. The method is suitable for the conditions that electric machining is carried out on a steel sheet groove of a pattern block, and the steel sheet is embedded into the steel sheet groove. The steel sheet is divided into two parts, a part of the steel sheet is a pattern part of a formed tire, namely the part extending out of a pattern block body, and the other part of the steel sheet is the part embedded into the pattern block body part, namely the connecting part of the steel sheet and the pattern block, and the part plays a role in fixing the steel sheet and the pattern block body. The fixing part of the steel sheet is designed to bein a certain angle with the forming part of the steel sheet, meanwhile, the angle of the steel sheet groove is matched with the angle as well, the angle and a demolding angle of the tire are not in astraight line to form a certain angle, and it is commonly known as an inverted buckle. The steel sheet designed by the invention is of a bent structure, the steel sheet groove of the pattern block matched with the steel sheet is in an inverted-buckle shape, so that the situation that the steel sheet is pulled out of the pattern block body by the tire when the demolding of the tire is carried outafter vulcanization is finished by the cooperating of the bent structure and the steel sheet is avoided.

Description

technical field [0001] The invention belongs to the technical field of tire mold steel sheets, and in particular relates to an anti-falling steel sheet structure and a steel sheet inlay method. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: [0003] 1. The overall shape of the steel sheet is non-bending, and the fixed part is directly embedded in the steel sheet groove of the pattern block in the form of transition or interference fit, and is fixed with the steel sheet groove by the elastic deformation of the steel sheet. In this form, the connection strength between the steel sheet and the steel sheet groove gradually decreases with the increase of the number of tire tires, which will eventually cause the steel sheet to be pulled out of the tread block body by the tire. [0004] 2. A tire mold pattern steel sheet embedded structure (application number: CN201720486653) [0005] The utility model relates to ...

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Problems solved by technology

[0013] 1. When the steel sheet is inserted into the steel sheet groove, it adopts a structural form that deforms due to the action of pressure. After the steel sheet is inserted in place, the elasticity of the steel sheet itself generates a pre-tightening force to both ends to prevent the steel sheet from falling off. The tightening force will gradually weaken with the increase of the number of tire tires, which will cause the steel sheet to fall off

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