Spinning frame and joint operation method thereof

Abstract

The invention relates to a spinning frame and a joint operation method thereof. The spinning frame comprises a plurality of rows of stations; each station comprises a drafting mechanism, a spindle used for forming a spool and a broken yarn detection device; the drafting mechanism comprises a plurality of roller pairs including a lower roller; joint operation of each station is carried out under a non-negative-pressure yarn suction device and comprises the following steps that when yarn breakage of the spinning frame is detected, a rough yarn feeding roller of the station is stopped, and rough yarn feeding is stopped; the yarn with the set length is placed on one roller, and the length from the contact point of the yarn and the roller to the tail end of the yarn is the set length; and rough yarn feeding and spindle rotation are started, so that the rough yarn and the yarn tail end move at the same time and meet in the joint area, and joints are formed under the condition that the rough yarn is not wasted. According to the spinning frame, the rough yarn splicing action in the state without an air suction pipe can be achieved, splicing is accurate, the phenomenon of yarn flying is avoided, the production cost of the spinning frame can be saved, and meanwhile equipment failures or yarn quality problems are avoided.

Description

technical field

[0001] The invention relates to the technical field of textile machinery, in particular to a splicing operation method of a spinning frame and the spinning frame. Background technique

[0002] Spinning frame is a spinning machine that draws, twists, and winds semi-finished roving or sliver into spun bobbin during the spinning process. The sliver is drafted and twisted on the roving frame to make roving, the comber combs the fiber to make a combed sliver, the needle card machine combines the sliver, the needle row drafting improves the sliver structure, and the roving is further twisted and spun on the ring spinning frame into spun yarn, and the spinning frame is the main machine for spinning.

[0003] During the spinning process of the spinning frame, whether it is a normal spinning splicing or a broken thread, it needs to be spliced ​​at the spinning frame. During the splicing, the roving is passed through the drafting device and is continuously carried out...

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