A sizing device

Abstract

The invention relates to a sizing device, comprising a feeding roll, a prepress roller, a sizing roller, a pressure-measuring roller and a size box; the prepress roller, the feeding roller and the pressure-measuring roller are rotationally mounted in the size box in parallel, the prepress roller is abutted against one side of the feeding roller, the pressure-measuring roller is abutted against theother side of the feeding roller, lower sides of the the prepress roller and the feeding roller are both soaked with size, and the feeding roller is arranged above the size box; a liquid-controller is arranged on the side, back to the feeding roller, of the prepress roller, has a liquid-control edge which is parallel to and close to the prepress roller, and is movably connected into the size box;and the spacing between the liquid-control edge and the prepress roller is adjustable. The yarn pre-sizing rate is adjusted by adjusting the spacing between the liquid-control edge and the prepress roll, so that the final sizing rate of yarn is adjusted. The yarn sizing rate adjusting manner is simple, without any influence to tension of yarn during adjusting, the yarn sizing rate is guaranteed,while external drawing to the yarn during sizing is eliminated to the utmost extent, and quality of the yarn is improved.

Description

Technical field: [0001] The invention belongs to the field of textile machinery equipment, and in particular relates to a sizing device. Background technique: [0002] Warp yarns are subjected to various tensile strains and frictions during the weaving process. The tensile strain mainly comes from the tension of the warp yarn and the movement of shedding and beating-up; the friction mainly comes from the relative movement between the warp yarn and the backrest, drop wire, heddle eye, steel reed and other parts. In order to give warp yarns the ability to resist complex loads, they need to be sized before the weaving process. Sizing can increase the breaking strength of the warp yarn, reduce the harmful hairiness of the yarn, and improve the abrasion resistance of the warp yarn. [0003] At present, the most commonly used sizing method is dipping sizing. The main structure includes a dipping roller and a pressure roller. The method used to control the sizing rate is to cont...

AI Technical Summary

Problems solved by technology

[0003] At present, the most commonly used sizing method is dipping sizing. The main structure includes a dipping roller and a pressure roller. The method used to control the sizing rate is to control the pressure of the squeeze roller on the yarn, which requires the squeeze roller to be able to move radially along the dipping roller. To achieve this technical effect, the squeeze roller usually uses Passive rotation to simplify the connection structure at both ends, but the passive rotation of the pressure roller brings the problem of unexpected drafting of the yarn during the sizing process, resulting in unstable diameter of the yarn after sizing

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