Extrusion roller for sizing machine

Abstract

The invention discloses an extrusion roller for a sizing machine. The extrusion roller mainly comprises three parts, namely, a roller body as well as two end shaft structures detachably arranged at two ends of the roller body, wherein the roller body adopts a hollow structure, and the two end shafts are inserted in and connected onto end surfaces of the roller body respectively and then locked on the end surfaces of the roller body by chucks at ends of the end shafts through fasteners; the roller body comprises a metal roller core and a rubber layer, the rubber layer mainly comprises four parts, namely, a bottom rubber layer, a buffer rubber layer, a surface buffer layer and a surface layer, and a gap layer is arranged in the buffer rubber layer; the gap layer is in a waved hole shape, and one end surface of the buffer rubber layer extends inwards to form a non-through blind hole structure; the gap layer is filled with hot air. With the adoption of the extrusion roller, the size film integrity is increased, hairiness is stuck, and the sizing quality is improved; the buffer rubber layer is filled with the hot air, so that the friction coefficient of the surface layer is increased, relative motion is reduced, yarn damage caused by slippage is avoided, uniform sizing is realized, the soakage and coverage are good, and the sizing quality is improved.

Description

technical field [0001] The invention relates to a squeeze roller, in particular to a squeeze roller for a sizing machine. Background technique [0002] When sizing the yarn on the sizing machine, multiple pairs of sizing rollers that cooperate with each other are often used to squeeze the yarn after being soaked in the sizing tank to squeeze out the excess sizing on the yarn and realize the sizing of the yarn. Sizing. The elasticity of the coating material on the surface of the pressure roller has a great influence on sizing. When the concentration, viscosity and decomposition degree of the slurry are constant and the speed of the sizing machine remains constant, the elasticity of the coating material on the pressure roller is not only directly related to It affects the size of the sizing rate, and also affects the ratio between the penetration of the sizing liquid and the coating, thus affecting the relationship between the reinforcement of the sizing, straightening and we...

AI Technical Summary

Problems solved by technology

The elasticity of the coating material on the surface of the pressure roller has a great influence on sizing. When the concentration, viscosity and decomposition degree of the slurry are constant and the speed of the sizing machine remains constant, the elasticity of the coating material on the pressure roller is not only directly related to It affects the size of the sizing rate, and also affects the ratio between the penetration of the sizing liquid and the coating, thus affecting the relationship between the reinforcement of the sizing, straightening and wear resistance; the current structure of the pressure roller is in the sizing Sliding is easy to occur during the time, causing friction to cause hairiness of the sizing yarn, increasing the elongation of the sizing yarn, and prone to sizing spots in the transverse direction, especially the edge due to poor pressing, resulting in uneven drying, sticking to adjacent yarns, and increasing edge yarns beheaded

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