Weft tension compensation device

Abstract

The invention discloses a weft tension compensation device, which comprises a chuck base, a bobbin rotating chuck, a bearing, a chuck mandrel, a chuck thrust spring and a mounting screw, wherein the chuck base is provided with a positioning sleeve; a friction block is arranged in the positioning sleeve and contacts the bobbin rotating chuck; a spring is arranged above the friction block; a locking bolt is arranged on the positioning sleeve and is used for compacting the spring and the friction block on the bobbin rotating chuck. The effect of the tension variation process of the weft leading-out end of the weft tension compensation device is opposite to that of the original device, so after the tension of the original device is adjusted to be smaller, the aim of basic balance of the tension in the decrease process of the whole roll of weft can be fulfilled by superimposing the tension of the compensation device; therefore, the flattening diameter variation of woven cloth can be controlled within 5 mm, and the phenomena of weft blistering and irregular cloth surface are remarkably improved.

Description

technical field [0001] The invention relates to a tension adjusting and compensating device, in particular to a weft tension compensating device for adjusting and compensating weft tension in the production process of plastic woven cloth so as to keep the weft tension constant. Background technique [0002] Existing loom (circular loom) is in the production process of weaving cloth, and the tension force of weft yarn is controlled by the tension spring under the bobbin on the shuttle, and its working principle is as follows: figure 1 Shown: [0003] The tension rod presses the weft bobbin by the pulling force from the deformation of the tension spring to prevent the weft bobbin from rotating freely, thereby forming a certain tension before weft weaving. The problem that this device exists is: in the production process of weaving cloth, the diameter of weft yarn tube is gradually dwindling, and the outer diameter of general whole roll weft yarn is about 90mm, and the outer d...

AI Technical Summary

Problems solved by technology

The problem that this device exists is: in the production process of weaving cloth, the diameter of the weft yarn tube is gradually becoming smaller, and generally the outer diameter of the whole roll of weft yarn is about 90mm, and the outer diameter of the weft yarn when it will be used up is 40mm

Due to the large change in the tension of the weft yarn, the consequence is that the folding diameter of the woven fabric changes greatly, and the maximum can reach 35mm, resulting in blistering of the weft yarn and uneven cloth surface.

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