Pattern rib inlaid-type pore-free tire mold and pattern block thereof

Abstract

The invention provides a pattern block of a pattern rib inlaid-type pore-free tire mold. The pattern block comprises a pattern block body and pattern rib main bodies, wherein the inner wall surface of the pattern block body is concavely provided with pattern rib inlaying grooves; the pattern block body is provided with exhaust passages for enabling the inner wall surface of the pattern block to communicate with the outer wall surface of the pattern block; each pattern rib main body comprises a pattern rib substrate and a pattern rib; each pattern rib substrate is inlaid into the corresponding pattern rib inlaying groove; each pattern rib is arranged at the inner side of the corresponding pattern rib substrate; circumferential exhaust lines are respectively arranged at included angles formed by each pattern rib and the corresponding pattern rib substrate; the circumferential exhaust lines communicate with the corresponding exhaust passage. The invention also provides the pattern rib inlaid-type pore-free tire mold, which is formed by splicing a plurality of pattern blocks side by side; the inner wall surfaces of the pattern blocks define an inner cavity of the pattern rib inlaid-type pore-free tire mold; the circumferential exhaust lines and the exhaust passages of the pattern blocks enable the inner cavity to communicate with the exterior of the pattern rib inlaid-type pore-free tire mold. According to the pattern block of the pattern rib inlaid-type pore-free tire mold and the pattern rib inlaid-type pore-free tire mold provided by the invention, only exhaust can be performed without material running, therefore an effect without pores is achieved, the efficiency and the consistency of pattern processing can be improved, and the quality of the tire mold is ensured.

Description

technical field [0001] The invention relates to a tire mold and pattern blocks thereof, in particular to a rib-inlaid non-porous tire mold and pattern blocks thereof. Background technique [0002] In the existing tire vulcanization process, in order to release the air in the mold cavity so that the rubber can be evenly distributed in the mold, the existing tire molds are provided with multiple vent holes on the mold cavity, especially It is at the angle between the rib and the tread, because it is easy to get air, so there are more holes. When the air is discharged from the mold, the rubber is squeezed into the drilled vent hole to form rubber wool. When the tire is demoulded, Some of these rubber hairs may be broken in the mold vent hole, and when the tire is vulcanized again, it will hinder the discharge of air in the cavity, which will cause the rubber to not completely fill the entire mold cavity. In order to avoid this situation, it is necessary to remove the tire mold...

AI Technical Summary

Problems solved by technology

[0002] In the existing tire vulcanization process, in order to release the air in the mold cavity so that the rubber can be evenly distributed in the mold, the existing tire molds are provided with multiple vent holes on the mold cavity, especially It is at the angle between the rib and the tread, because it is easy to get air, so there are more holes. When the air is discharged from the mold, the rubber is squeezed into the drilled vent hole to form rubber wool. When the tire is demoulded, Some of these rubber hairs may be broken in the mold vent hole, and when the tire is vulcanized again, it will hinder the discharge of air in the cavity, which will cause the rubber to not completely fill the entire mold cavity

In order to avoid this situation, it is necessary to remove the tire mold from the production line for cleaning. The general cleaning operation is to use a drill to drill out the rubber in each air hole, which is very time-consuming and affects production efficiency; on vulcanized tires, Most of the rubber wool stands on the tire with demoulding. In order to remove the rubber wool, special personnel and corresponding equipment have to be set up to trim it, which not only affects the appearance quality of the tire, but also wastes the rubber material and increases the production cost.

[0003] On the other hand, as the competition in the tire market intensifies, in order to increase the market share of their tires, many tire factories seize the market by constantly changing the pattern to improve tire performance. The ever-changing pattern brings various difficulties to mold production. Some patterns are processed by finishing all the parts that can be processed by existing equipment, and the parts that cannot be processed by existing equipment and technology are trimmed by fitters. This processing method can also be used for molds with relatively simple patterns, but it is relatively Time-consuming, for molds with complex patterns, it is not only time-consuming, but also requires high technical level of fitters, and manual trimming will lead to inconsistency in mold pattern trimming and reduce product quality

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