A system for manufacturing a high self-sealing tyre, comprising:
- a cleaning station that cleans a tyre to be treated;
- a spraying station that sprays a high molecular organic material that is heated onto an inner liner of the tyre;
- and
- a forced-cooling station that forcibly cools the tyre that has been sprayed with the high molecular organic material,
- wherein
- the cleaning station comprises:
- a soaking tank holding therein an alcohol solution for soaking the tyre;
- a scrubbing device that scrubs the inner liner of the tyre after soaking the tyre;
- a sprinkling device that sprinkles the alcohol solution onto the tyre to rinse an inside and an outside of the tyre;
- a tyre uprightly-rotating device having two spaced-apart rotatable rollers and configured to rotate the tyre by friction between a surface of the tyre and the rotatable rollers;
- and
- an air chamber that evaporates the alcohol solution on the tyre with air-drying gases,
- wherein
- the spraying station comprises:
- a tyre accelerating-and-maintaining device that is configured to accelerate the tyre to a determined rotational speed and maintain the tyre at the determined rotational speed;
- and
- a spraying device that sprays the high molecular organic material that is heated onto the inner liner of the tyre to form thereon a layer of the high molecular organic material having self-sealing functions,
- wherein
- the forced-cooling station comprises:
- an air-cooling device that performs a forced cooling of the tyre, in which the layer of the high molecular organic material is formed, by ejecting at least one cooling gas toward the tyre,
- wherein
- the scrubbing device is provided on a scrubbing platform, and a lifting device that automatically loads and unloads the tyre is provided, and
- wherein
- in the spraying device, the high molecular organic material, being heated to a temperature of at least 180° C., is sprayed onto the inner liner of the tyre while the tyre remains rotating at the determined rotational speed,
- in the air-cooling device, the high molecular organic material on the inner liner of the tyre is naturally cooled to at least 140° C. while the tyre remains rotating at the determined rotational speed, and then forcibly cooled to 60° C. or lower using the at least one cooling gas while the tyre remains rotating at the determined rotational speed, and
- the system further comprises a control device configured to adjust and set the rotational speed of the tyre by:
- (i) accelerating and maintaining a rotational speed at the determined speed during spraying and cooling, and (ii) setting the rotational speed during evaporation of the alcohol solution in the air chamber to be slower than said determined rotational speed used during the spraying and cooling.