Complex rubber pad board, preparation method thereof and combined mold machine of pad board blank

Abstract

The invention relates to a complex rubber pad board, a preparation method thereof and a combined mold machine of a complex rubber pad board blank, and particularly relates to complex rubber pad boards between a railway track and a concrete sleeper under a bad work environment, and preparation methods thereof and special devices for preparing the complex rubber pad boards. The complex rubber pad board is composed of a surface glue layer and a core layer, wherein the core layer is of a main load-carrying structure of the pad board, and is a compound layer laminated by cloth-both-sides composed of twill fabric or bead cloth woven by high-strength and high-toughness fiber and rubber compound. According to the complex rubber pad board, the preparation method thereof and the combined mold machine, a pure rubber product is replaced by composite reinforced rubber; the compressive strength, the abrasive resistance and the creep resistance of a rubber product are obviously improved; the service life is prolonged; the maintenance cost of the railway is reduced; the ambient temperature range and the application field of the complex rubber pad board are expanded. Secondly, the invention also provides selection of a reinforced material and a reinforced mode suitable for large-scale industrial production, and a matched process route, and the quality reliability and the homogeneity of products are ensured.

Description

technical field [0001] The invention relates to a backing plate between a steel rail and a concrete sleeper in a railway track structure or a shock-absorbing and buffering composite rubber cushion in other fields, in particular to a composite rubber backing plate, a preparation method thereof, and a combined molding machine for the composite rubber backing plate blank. Rubber products and their production technologies. Background technique [0002] Many modern power equipment and anti-seismic buildings require shock absorbing buffer devices. Similarly, most modern railways use reinforced concrete sleepers to support the rails. Backing plate (layer). The dimensions, materials and performance indicators of this type of cushion must meet the railway industry standards. Most of the backing boards currently used are made of pure rubber, and such backing boards are based on hand-made, and the quality of the products varies. Under the repeated rolling of the wheels and the long-...

AI Technical Summary

Problems solved by technology

This and other newly invented backing plates can indeed improve the strength and prolong the service life, but it is also necessary to choose different backing plates under different temperature environments. The disadvantages of large-scale production are achieved by manual technology. Secondly, metal wire is used as a reinforced skeleton. The difficulty of bonding rubber to metal is higher than that of rubber to nylon fiber. At the same time, the rubber cannot completely wrap the steel wire, and its working resistance value will be greatly reduced.

In order to complete the mechanized continuous and efficient production of composite rubber backing plates, it is necessary to encounter the cutting problem of cutting mixed rubber mixed with a large amount of high-strength and high-toughness fiber fabrics, and the cutting volume is very large.

Existing cutting machines, whether mechanical (rolling, cutting, shearing, sawing, punching), or wire cutting, plasma, ultrasonic, laser, jet, arc, etc., are suitable for cutting metal, pure rubber, plastic Concrete, stone, and wood are all very mature or relatively mature technologies, but when encountering the above-mentioned composite laminates mixed with soft and tough high-strength fibers in the mixed rubber raw materials, continuous and efficient cutting is necessary. It is very difficult or even powerless, let alone integrated supporting

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