Compression roller of composite machine for preparing polyethylene fiber reinforced composite material

Abstract

The invention discloses a compression roller of a composite machine for preparing a polyethylene fiber reinforced composite material, which comprises a shaft and a drum which is sleeved outside the shaft and keeps concentric with the shaft; two ends of the shaft and the drum are positioned and connected by a first radial plate and a second radial plate symmetrically arranged at two ends of the drum respectively to form a hollow area in the drum; a heating device is arranged in the hollow area; and the first radial plate and the second radial plate are oblique towards the middle of the drum to connect the inside of the drum. The compression roller effectively reduces the flexural deformation of the compression roller, can effectively and evenly heat the surface of the hollow drum through arrangement of an optical heating pipe device in the hollow compression roller, and is suitable for continuously preparing polyethylene fiber reinforced laminated cloth with even performance.

Description

technical field [0001] The invention relates to a composite machine for preparing polyethylene fiber-reinforced composite materials, in particular to a pressing roller on the composite machine for preparing polyethylene fiber-reinforced composite materials. Background technique [0002] Ultra-high molecular weight polyethylene (UHMWPE) fiber is also called ultra-high modulus polyethylene fiber or extended chain polyethylene fiber, which means that the relative molecular mass is (1~6)×10 6 Polyethylene, an ultra-high molecular weight polyethylene (UHMWPE) fiber made by spinning-super-stretching. It is the third generation of high-performance fiber after carbon fiber and Kevlar (aramid) fiber. Compared with other fiber-reinforced composite materials, polyethylene fiber-reinforced composite materials have the advantages of light weight, impact resistance, and high dielectric properties, and play a pivotal role in modern warfare, aerospace, sea defense, weaponry and other field...

AI Technical Summary

Problems solved by technology

[0007] Since the molding pressure of polyethylene fiber laminated cloth can reach up to 10MPa, the ordinary hollow pressure roller is prone to deflection and deformation of the roller wall under the pressure of the support roller.

In the continuous preparation of polyethylene fiber laminated cloth, it is necessary to maintain uniform pressure everywhere. The hollow pressure roller with large deflection and deformation will obviously affect the process stability of the prepared polyethylene fiber laminated cloth, resulting in uneven performance everywhere.

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