Anti-stretching unwinding device for strip-shaped rubber material

Abstract

The invention discloses an anti-stretching unwinding device for a strip-shaped rubber material. The unwinding device comprises an unwinding device body, the unwinding device body is provided with a main power shaft, and a meshing device is arranged below the main power shaft. According to the unwinding device, through changing the position of the main power shaft, a cloth liner (or plastic cloth)driven by the main power shaft is always a single-layer cloth liner (or plastic cloth) along with unwinding, the diameter of the main power shaft is kept unchanged, the rotating speed of the main power shaft is also kept unchanged, and the unwinding speed of a spool is kept unchanged. Due to the fact that the main power shaft rotates at a constant speed and the single-layer cloth liner (or plasticcloth) keeps constant friction force with the meshing device through the main power shaft, the cloth liner (or plastic cloth) is output at a constant speed through the main power shaft, and the strip-shaped rubber materials are output at a constant speed; and through setting the rotating speed of the main power shaft to be matched with the follow-up conveying speed, the cloth storage height difference of a strip-shaped rubber material cloth storage device in the prior art can be greatly reduced, so that strip-shaped rubber material stretching caused by the dead weight of the strip-shaped rubber material of a suspension part is greatly reduced, and the process requirement is met.

Description

Technical field [0001] The invention relates to the technical field of tire manufacturing, in particular to an anti-stretching and guiding device for strip rubber materials. Background technique [0002] In the prior art, a large number of strips of rubber are used to manufacture tires in the tire blank forming process. The strip of rubber refers to the rubber material whose length direction is much larger than the width direction. The previous process generally uses an I-shaped wheel to provide the tire blank forming process. Strip rubber material, because the rubber material is sticky, in order to prevent the rubber material from sticking, the cloth (or plastic cloth) and rubber material are wound together in the previous process I-wheel winding process. The cloth cloth (or plastic cloth) Play the role of isolating rubber to prevent adhesion. [0003] The molding process unwinds the above-mentioned spools during the process of manufacturing the tire blank. In the industry, the c...

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Problems solved by technology

[0003] In the molding process, the above-mentioned I-shaped wheel is unrolled in the process of manufacturing the embryo. In the industry, the pad cloth (or plastic cloth) is wound on the driving shaft, and the pad cloth (or plastic cloth) is wound up through the main power shaft to pull the tool. The word wheel unwinds the strip rubber material. As the unwinding proceeds, more and more cushion cloth (or plastic cloth) is wound on the main power shaft, and the diameter gradually becomes larger. The speed of the main power shaft remains unchanged. The roll speed increases gradually. In order to solve the problem of matching with the subsequent conveying speed, a rubber material storage device is set up. The cloth storage device is equipped with a lower limit switch for storage. The unwinding main power axis unwinds according to whether there is rubber at the lower limit switch. Start and stop, the height difference of the fabric storage depends on the length of the blank material and the speed difference between the front and rear. The rubber material in the fabric storage link is in a hanging state. In the actual production process, the rubber material is often stretched due to the weight of the hanging part of the rubber material, which cannot meet the process requirements.

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