Production method of high-curliness canvas for rubber conveyer

Abstract

The invention discloses a production method of a high-curliness canvas for a rubber conveyer. The production method comprises the following steps: selecting high-strength polyester and nylon industry long filament as materials of products; selecting a structure with coordinated weft and warp match and using a broken twill texture structure with proper weft and warp-density; subjecting the gray fabric to gum dipping, so as to produce the framework material. The framework material produced by the method is used for producing the canvas for the rubber conveyer, and the canvas has advantages of uniform stress, high curliness, impact resistance, not easy delamination and corrugation, tear resistance, stable bonding with the rubber and high strength, so that the canvas is the ideal framework material for producing the rubber conveyer, and the rubber conveyer produced by the framework material can be used in production equipment with relatively small roller diameter or improve the warp-direction curliness in the production process of a high-layer thick rubber belt. The rubber conveyer is prevented from bending and corrugating, or being broken during the using process, and the service life of the rubber conveyer is prolonged.

Description

technical field [0001] The invention relates to the technical field of textile processing, in particular to a production method of high-crimp canvas. Background technique [0002] The rubber conveyor belt is composed of three parts: the skeleton material, the covering layer and the bonding layer material, and the base layer. The skeleton material is the key to the conveyor belt's bearing capacity and the decisive factor for the conveyor belt's orientation, load capacity and extensibility. With the popularization of industrialized production, the use of conveyor belts has expanded, and the conveyor belts used in production equipment with smaller diameters and in the production of multi-layer thick tapes are bent and wrinkled during use, and even appear to fall off during use. Phenomena such as fault belts greatly reduce the service life of the conveyor belt. With the maturity of the canvas market in recent years, customers have higher and higher requirements for the skeleton...

AI Technical Summary

Problems solved by technology

[0003] In actual operation, when the multi-layer fabric core conveyor belt passes the surface of the roller, it is often easy to wrinkle the non-working surface of the conveyor belt due to bending, resulting in early peeling off of the rubber on the non-working surface, drumming and delamination between the cloth layers, and in severe cases due to canvas Damaged by compressive force, resulting in lateral tearing of the conveyor belt

The current main solution is to increase its curl, but the common problem of high-curl canvas on the market is: there will be slight looseness on both sides of the tenter dipped canvas, and the wider the width, the easier it is to appear; It is produced by a splicing process. During molding, the cloth layers are not well bonded, resulting in uneven surface of the conveyor belt; slight "horizontal waves" appear during vulcanization; the heat shrinkage in the warp direction is significantly lower than that of traditional canvas, while the heat shrinkage in the weft direction Significantly higher than traditional canvas products; the higher the curl, the lower the modulus of the canvas, and the dry weight per square meter will also increase significantly; when the adhesive force is peeled off, the test data of the adhesive force will be reduced

Therefore, simply increasing its curl degree cannot solve the above problems

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