Giant radial wire cord off-the-road tyre vulcanizing machine

Abstract

The invention provides a giant radial wire cord off-the-road tyre vulcanizing machine, which comprises a rigid frame, an upper heating flat plate, a lower heating flat plate, a mold, a bidirectional steam admission device, an internal mold positioning device, a mold opening and closing oil cylinder, a mold supporting power assisting device, a synchronization mechanism and a lower mold removal and traction oil cylinder, wherein the rigid frame consists of an upper cross beam, a lower cross beam, a left wall board and a right wall board; the upper heating flat plate and the lower heating flat plate are arranged on the upper cross beam and the lower cross beam; a support pillar is arranged on the upper heating flat plate; a skylight hole is formed on the support pillar on a part corresponding to the upper cross beam; a mold locking mechanism consisting of a wedge iron, a support pillar and a wedge iron oil cylinder is arranged below the upper cross beam; the wedge iron and the support pillar are in planar fit with each other; the adopted mold is in the form of a segmented mold; an internal mold and a lateral mold are positioned through positioning blocks; an upper mold is kept in stable operation at a uniform speed by the synchronization mechanism; the bidirectional steam admission device guarantees that the temperature error on each part of the mold is extremely small; smooth opening and closing of the internal segmented mold are guaranteed by the mold supporting power assisting device; and the lower heating flat plate is pulled into or removed from the frame together with a lower mold through the traction oil cylinder to guarantee safety in operation.

Description

technical field [0001] The invention relates to a tire vulcanization machine, in particular to a tire vulcanization machine for giant steel wire radial engineering machinery. Background technique [0002] Due to the rapid growth of demand for coal, iron ore, copper and other mineral resources in various countries in the world, the demand for mining machinery and large-scale transportation vehicles in the mining industry has been stimulated, especially the market demand for large-scale engineering tires for mining dump trucks has surged, resulting in engineering There is a global shortage of tires, especially large-sized giant engineering tires. Even in the fourth quarter of 2008, when the financial crisis hit the hardest, the global sales of engineering giant tires were still good. [0003] Engineering giant tires are mainly used in mining and port transportation industries, and the market is specific. The mining industry mainly uses mining vehicles with a load of 108 tons...

AI Technical Summary

Problems solved by technology

The existing problems of [0006] are: ① The top column and the wedge iron are matched on an inclined plane, and the vertical column cannot be guaranteed when the mold is clamped, and the top column may be inclined, resulting in stress Not good, slightly less stable

② There is no cooling device for the upper and lower central cylinders of the vulcanizer, so the seals are often replaced, resulting in downtime for maintenance and affecting production

③ The original vulcanizing machine is a steam inlet pipe in one direction, so that the temperature difference between the molds is relatively large, which affects the inner quality of the produced tires

④ During the mold closing process of the upper side mold, due to the asynchrony of the opening and closing mold cylinders, it is easy to cause glue

⑤ There is no positioning device on the side mold of the inner mold, which may easily cause pattern misalignment and affect the appearance quality of the tire

⑥ The lifting of the lower mold depends on a central cylinder, which may cause instability in the rising process of the lower mold and insufficient force of the mold lifting

⑦ The removal of the lower model and the lower plate is done by the winch, because of the flexible connection, there is impact phenomenon, and it occupies a large area

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