Novel hydraulic rocker arm knurling type high-temperature vulcanizing device for retreaded tire

Abstract

The invention discloses a novel hydraulic rocker arm knurling type high-temperature vulcanizing device for a retreaded tire. The vulcanizing device comprises an upper cover opening and closing mechanism, a tire jacking mechanism, a clamping mechanism and a heating mechanism. The vulcanizing device has the beneficial effects that eight arched bases are arranged in a petal shape, and each arched base is internally provided with a heating plate; each arched base is pushed through a connecting rod, and therefore the arched bases can be closed and opened like petals; thus, a tire mold can be evenly clamped, and heated; a box body is pushed by a mold locking oil cylinder to rotate, and the box body and the connecting rod are rotated synchronously; the stability and uniformity of operation are ensured, and the uniform pressing force of the eight arched bases in a petal shape can be ensured; two pressing blocks are arranged on each arched base; when the box body is rotated in place, and the two sides of each arched base are pressed through the pressing blocks of the box body; after pressing, force does not need to be applied through a hydraulic cylinder, and therefore energy consumption is reduced; the operation time of a hydraulic device is shortened, and the fault rate is reduced; and the reliability is improved.

Description

technical field [0001] The invention relates to a tire vulcanization device, in particular to a novel hydraulic rocker arm opening type high-temperature retreading tire vulcanization device, which belongs to the technical field of rubber machinery. Background technique [0002] There is a huge amount of scrapped tires in the world every year, resulting in an astonishing waste of resources and environmental pollution. At present, countries encourage the adoption of retreading treatment and re-vulcanization molding treatment methods for old tires with worn tire patterns for recycling, which can save rubber materials and protect the environment to a large extent. [0003] Most domestic tire retreading technologies use cold vulcanization technology. Waste tires go through cleaning—drying—rough grinding—fine grinding—rubbering inside and outside—laminating the tread—installing accessories such as rims and envelopes—entering the vulcanization tank for low-temperature vulcanization...

AI Technical Summary

Problems solved by technology

Disadvantages of this process: long time consumption, high manpower consumption, poor uniformity of tire vulcanization, only suitable for large truck tires and engineering tires, but not suitable for the largest number of car tires, the only advantage is less investment in equipment

[0004] At present, the thermal vulcanization of retreaded tires manufactured by a small number of domestic manufacturers uses the flipped cavity. The disadvantage is that the pressure is not uniform enough. The tire mold needs to be integrated with the heating design. The structure is specific, and the traditional compound mold cannot be used. The manufacturing cost is high and the size changes greatly. The quality of retreaded tires is not ideal

Images