Inversed type cylinder weft backing-off device

Abstract

The invention discloses an inversed type cylinder weft backing-off device which is characterized in that a hook is arranged on a tapered rod. The hook is arranged on a weft support in a hanging mode, and a doffing porcelain block is arranged on the weft support of one side of the hook. The tapered rod is arranged in a paper tapered pipe of an inversed cylinder weft center in an inserted mode. A center hole of a plane bearing is arranged on a weft supporting shaft in a sleeved mode, and a base plane of the plane shaft is arranged on a disc of the lower end of the weft supporting shaft. A screw thread is arranged at the upper end of the weft supporting shaft and arranged in a thread hole of the lower end of the tapered rod, and cylinder weft is arranged on the tapered rod. Yarn of the cylinder weft penetrates through a yarn folding hole of a yarn folding-back porcelain seat, then is lead out of an weft leading hole of a yarn leading porcelain block, and transmitted into an weft accumulator, and the lower bottom face of the cylinder weft is 50-70cm away from an weft supporting plate. The inversed type cylinder weft backing-off device solves the problems that weft of a rapier loom backs off and drops, short fiber winds, and yarn fault is brought to weft, effectively improves cloth cover quality, and improves economic benefits of an enterprise.

Description

technical field [0001] The invention relates to a spinning component, in particular to an inverted weft yarn unwinding device for a rapier loom. Background technique [0002] In the existing weft unwinding technology of rapier looms, the weft unwinding method of rapier looms is: upward vertical unwinding type, and the structural diagram of the weft unwinding device is shown in figure 2 ;The technological process is: place the package weft yarn on the package yarn support plate of the weft storage frame, with the rotation of the weft storage device, the weft yarn enters the weft storage device through the yarn introduction hole on the weft yarn creel, and the yarn is unwound When the line speed reaches 250-270M / mi, the short fiber weft on the yarn will be rubbed off when it passes through the yarn drawing porcelain eye, and the short fiber weft will fall and accumulate on the upper surface of the package yarn. Under the condition, it is very easy to entangle with the high-sp...

AI Technical Summary

Problems solved by technology

[0002] In the existing weft unwinding technology of rapier looms, the weft unwinding method of rapier looms is: upward vertical unwinding type, and the structural diagram of the weft unwinding device is shown in figure 2 ;The technological process is: place the package weft yarn on the package yarn support plate of the weft storage frame, with the rotation of the weft storage device, the weft yarn enters the weft storage device through the yarn introduction hole on the weft yarn creel, and the yarn is unwound When the line speed reaches 250-270M / mi, the short fiber weft on the yarn will be rubbed off when it passes through the yarn drawing porcelain eye, and the short fiber weft will fall and accumulate on the upper surface of the package yarn. It is very easy to entangle with the high-speed unwinding yarn, and the yarn defects will be brought into the weft yarn, forming weft defects on the cloth surface, which will seriously affect the quality of the finished cloth and the economic benefits of the enterprise.

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