Device for catching yarn ends of bobbins

Abstract

A telescopic suction pipe (20) comprises an upper stationary pipe (21) and a vertically slidable lower pipe (22). The upper stationary pipe is provided with a yarn cutting device (25) and with a photocell (24) for detecting the presence of a yarn inside the suction pipe. A mechanical yarn gripping device (28) is mounted in the lower pipe (22). A linear actuator (30) causes the lower pipe (22) to slide telescopically along the upper stationary pipe (21).

Description

technical field [0001] The present invention relates to a device for catching yarn ends of bobbins, in particular but not exclusively of spun fabrics (spun) which are difficult to untie, such as for example wet linen. Background technique [0002] As is known, it is difficult to detach the yarn ends from the surface of the bobbins as they come out of the wet linen spinning wheel. This is due to the wet spinning cycle whereby the wet cellulose which is released from plant fibers such as flax and cotton with a slippery and sticky consistency, once dried, tends to cause the loops to stick to each other and make the yarn The thread becomes stiff. Once removed, the yarn is difficult to unravel because it remains reattached to the underlying loops due to the adhered cellulose. [0003] Typically, the bobbins end with highly inclined binding windings and finally some binding windings at the bottom of the tube (or "underwinding"). [0004] In order to prepare the spool for the ne...

AI Technical Summary

Problems solved by technology

[0002] As is known, it is difficult to remove the yarn ends from the surface of the bobbins as they come out of the wet linen spinning wheel

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