Plastic dyeing tube with integrated radial shrinkage

Abstract

A plastic dyeing bobbin that can shrink evenly in the radial direction, belongs to the technical field of manufacturing dyeing accessories, and mainly includes a conical or cylindrical barrel (1), which is evenly distributed on the entire barrel (1) and has upper and lower holes. (3) and the "dumbbell"-shaped through hole formed by the straight groove (4) running through the upper and lower holes, and placed on the inner wall of the cylinder (1) no less than three reinforcing ribs (2) that are axially evenly distributed. The upper holes (3) of each row of "dumbbell"-shaped through holes in the axial direction and the lower holes (3) of an adjacent row of "dumbbell"-shaped through holes are arranged on the same horizontal plane. By evenly distributing the "dumbbell"-shaped through-holes on the entire conical or cylindrical barrel, the overall structure design is more reasonable. During the dyeing process, it can shrink evenly in the radial direction with the shrinkage of the winding yarn, so that The diameter shrinkage of each circular section perpendicular to the axis on the bobbin is a fixed value, which ensures the uniformity and consistency of dyeing, and can effectively improve the dyeing quality and yarn quality.

Description

Technical field [0001] The invention relates to a plastic dyeing bobbin that can uniformly shrink radially as a whole, belonging to the technical field of manufacturing dyeing accessories. Background technique [0002] The dyeing bobbin is used to wind the cheese before dyeing for dyeing by the dyeing machine. In the dyeing process, the cheese yarn encounters high temperature dye liquor, and its fibers will shrink to varying degrees under the action of moisture and heat, forming a radial pressure on the tube wall, causing the tube to shrink radially. The shrinkage of the bobbin largely resolves the tensile stress caused by the shrinkage of the winding yarn. The resolution of the stress is beneficial to the uniform density of the yarn. The uniform density of the yarn enables the inner, middle and outer yarn layers to be evenly dyed. Chinese patent ZL200520116899.x provides a radially shrinkable plastic dyeing bobbin. A "dumbbell"-shaped through hole is arranged in the middle of th...

AI Technical Summary

Problems solved by technology

Chinese patent ZL200520116899.x provides a radially shrinkable plastic dyeing bobbin. A "dumbbell"-shaped through hole is set in the middle of the bobbin to make it radially shrinkable. However, since the upper and lower ends are still ordinary The bobbin structure makes it difficult to achieve overall radial shrinkage during dyeing, which affects the uniformity and consistency of dyeing

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