Full-automatic sidewall turn-up system of all-steel tire two-drum forming machine

Abstract

The invention relates to a full-automatic sidewall turn-up system of an all-steel tire two-drum forming machine. Two sides of the all-steel tire two-drum forming machine are provided with a conical turn-up wheel, each conical turn-up wheel is connected with the all-steel tire two-drum forming machine by virtue of a sidewall turn-up arm apparatus; the specific structure of the sidewall turn-up arm apparatus is as follows: the conical turn-up wheel is arranged on the inner side surface of the front end of a main support by virtue of a central bearing, the front end of the main support is provided with a curved surface supporting plate, the curved surface supporting plate is coaxial with the conical turn-up wheel, and the radius of the curved surface supporting plate is 3 to 8 mm less than the radius of the conical turn-up wheel; the curved surface supporting plate is provided with a plurality of micro universal balls, the micro universal balls are protruded out of the outer circular surface of the curved surface supporting plate, and the micro universal balls are fit to a sidewall part. By adopting the system, the automatic turn-up of a sidewall can be realized, the sidewall is enabled to be uniformly stretched, and characteristics for lowering the labor intensity, improving the labor efficiency and eliminating the pollution to a mold can be realized.

Description

technical field [0001] The invention relates to a full-automatic sidewall turn-up system of a two-drum building machine for all-steel tires, which belongs to a wheel sidewall forming equipment. Background technique [0002] "Sidewall turn-up operation" is a very important step in the green tire building process. Since the introduction of all-steel tires to China 25 years ago, during the molding process of tire blanks on two-drum molding machines, the "sidewall turn-up operation" cannot be separated from the participation of operators. [0003] "Sidewall", also known as tire side rubber, is the outermost part of the tire side, and the material is composed of soft formula rubber parts. During the tire blank forming process, the forming machine head rotates at a high speed of 750° / S during the whole process of the tire blank pressing process. The left and right sidewalls are respectively covered on two layers of capsules, and the capsule cavity is filled with 3bar compressed ...

AI Technical Summary

Problems solved by technology

[0007] 1. Personnel participate in the waxing operation in a small space and the equipment is rotating at high speed, posing potential safety hazards;

[0008] 2. When personnel participate in the waxing operation, the free stretching of the sidewall is interfered, and the distribution of the sidewall rubber in the thickness direction and width direction deviates from the theoretical design;

[0009] 3. Personnel participate in waxing operations, which increases labor intensity and reduces personnel efficiency;

[0010] 4. Wax powder is brought into the vulcanization mold in the form of attachment, resulting in mold pollution, increasing the frequency of dry ice cleaning molds, and increasing costs

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