Air door and large-suction-nozzle air door of combined yarn trap of automatic winder

Abstract

An air door and a large-suction-nozzle air door of a combined yarn trap of an automatic winder in spinning production are characterized in that a cavity between a yarn trap yarn suction channel and an air door front shell and a cavity between the yarn trap yarn suction channel and an air door rear shell are negative-pressure cavities which are mutually sealed, a yarn trap front suction opening is sequentially connected with a suction pipe and a suction nozzle, a yarn trap rear suction pipe is communicated with the negative-pressure cavities through connecting pipes, and therefore opening and closing of the yarn trap air door is controlled; a large-suction-nozzle air door control mechanism comprises a cam shaft which rotates to change the angle position of an air door swing bar through a cam, then a four-bar mechanism formed by the air door swing bar, a connecting bar and an air door connecting bar transmits the angle position change to the air door, and the air door can be located at different work positions in the splicing circulation. The air door and the large-suction-nozzle air door of the combined yarn trap of the automatic winder have the advantages that the large-suction-nozzle air door is used for controlling opening and closing of the yarn trap, the structure is simple and reliable, and the phenomena that broken barrels are generated and the yarn splicing process is affected are avoided.

Description

technical field [0001] The invention relates to the field of textile machinery, in particular to a combined yarn catcher damper and a large suction nozzle damper of an automatic winding machine used in textile industrial production. Background technique [0002] During the normal winding process of the automatic winding machine, the yarn package speed is very high, and the speed changes are relatively large, so the yarn may break at any time. The yarn catcher installed on the machine can effectively suck away the small fragments of waste yarn formed by yarn breakage, preventing the small fragments of waste silk from being brought into the bobbin to form a broken bobbin, and it also has the function of cleaning the flying flowers and impurities on the yarn, etc. Features. However, when the automatic winder is turned into the splicing cycle, the yarn catcher will affect the yarn splicing process. Therefore, the yarn catcher often needs to have an opening and closing function....

AI Technical Summary

Problems solved by technology

However, because the function of the damper is to block rather than close, the traditional yarn catcher still has a certain influence on the yarn splicing process in actual use.

[0003] At present, the yarn catcher of the imported automatic winder basically sets the damper in the middle of the yarn suction channel of the yarn catcher, so as to realize the complete closure of the yarn suction channel of the yarn catcher, but most of them still use the electromagnet to control its action alone , so the manufacturing cost is high, and the electromagnet is easily damaged, causing the function of the yarn catcher to fail and resulting in a broken tube

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