Inner separant spraying device suitable for inner tube

Abstract

The invention relates to the technical field of inner tube processing, and discloses an inner separant spraying device suitable for an inner tube. The device comprises an extrusion head, a core mold is arranged in the extrusion head, a sprue spreader is arranged at the left end of the core mold, a fixed head is arranged at the left end of the extrusion head, a flange plate is arranged at the leftend of the fixed head, a mixing cavity is formed in the middle of the core mold, an air inlet is formed in the upper side of the left portion of the mixing cavity, a liquid inlet is formed in the lower side of the middle of the mixing cavity, a spraying groove is formed in the right side of the core mold, spraying openings are formed in the bottom of the spraying groove, the end, close to the center of the core mold, of each spraying opening is connected with the mixing cavity, a plug is arranged at the right end of the core mold, and a second fixing plate is arranged on the left side of the extrusion head. According to the inner separant spraying device suitable for the inner tube, negative pressure is formed at the upper end of the liquid inlet through high-pressure airflow, so that an inner separant is pumped into the mixing cavity; and the inner separant can be uniformly sprayed on the inner wall of the inner tube through the arrangement of the plurality of spraying openings in thespraying groove.

Description

technical field [0001] The invention relates to the technical field of inner tube processing, in particular to a spraying device for a release agent in inner tubes. Background technique [0002] In the production process of automobile inner tubes, it is necessary to extrude inner tubes; usually the extrusion steps of inner tubes include raw rubber mastication, mixing, filtering, kneading, spacers, feeding into extruder and over-extrusion head molding Tire tube step: After extrusion, the external release agent is usually applied manually; the release agent can prevent the inner tube from being extruded and the assembly line from bonding, and at the same time has a certain cooling effect on the newly extruded inner tube, but the inside of the inner tube is also The release agent needs to be sprayed, and the internal release agent cannot be sprayed directly by hand. [0003] Chinese patent (notification number: CN201659681U) discloses a spraying device for release agent inside...

AI Technical Summary

Problems solved by technology

The device fully mixes the inner spacer and compressed air to form a mist-like liquid spacer, which is evenly sprayed on the inner wall of the inner tube semi-finished product under the action of the spacer injector. The device does not set the spray port, so that As a result, the built-in device can only spray the release agent, and cannot spray evenly on the inner wall of the inner tube, resulting in uneven spraying inside, so the device needs to be improved

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