Vacuum pumping tire segmental mold

Abstract

The invention discloses a vacuum pumping tire segmental mold. The segmental mold comprises a base and a guide ring; a seal device is arranged between the lower end face of the guide ring and the upper end face of the base; the mold has the beneficial effects that exhaust is smooth, the dead corners of the mold are easily filled with tire compounds, the tire appearance is attractive, and the tire performance is good; the position between the guide ring and a mounting ring is subject to end face fixed seal, the seal effect is better, the service life of a seal ring is prolonged, and the material cost is reduced; the mold can be used by mounting rings in different shapes and with different types, and the adaptation is wide; meanwhile, components of the segmental mold are convenient to machine, the difficulty is low, the phenomenon that due to grooving in the guide ring, the strength is reduced is avoided, in addition, the phenomenon that a seal ring is placed on the lower end face of the guide ring, when the guide ring is placed and transported, the seal ring needs to be protected against damage caused by extrusion or collision is avoided, cost for machining and designing a new mold again is saved, a vacuum pumping mold of a new structure does not need to be designed again, the mold can be sealed, and the design and machining cost of the vacuum pumping mold is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of tire moulds, and relates to a vacuum tire flexible mold, especially for vacuum tire flexible molds with high tire pattern appearance and relatively complex patterns, which can be widely used in passenger tires, light truck tires, truck tires, engineering tires , Giant tire active mold. Background technique [0002] At present, the application of radial tires is getting wider and wider, and the competition is also intensifying. Tires with beautiful appearance and strong practicability are more and more favored by people. In particular, high-end tires with complex patterns are favored by car owners, and the more complex the tread pattern, the easier it is for the mold to have poor exhaust during the tire building process, resulting in lack of rubber in the tire and affecting the appearance of the tire. [0003] In order to discharge the gas smoothly, the traditional active mold processes a large number of ...

AI Technical Summary

Problems solved by technology

However, during the use of the mold, the gap between the guide ring and the protrusion of the base will become larger due to the reduction of the matching accuracy, which will reduce the sealing effect of the base and the guide ring, resulting in the vacuum degree inside the mold not meeting the use requirements.

[0005] In addition, the frequent opening and closing of the mold will cause the wear of the sealing ring, resulting in a low service life of the sealing ring

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