Yarn splicing device for stations of textile machines producing cross-wound bobbins

Abstract

The invention relates to a yarn splicing device (10) for a station (2) of a textile machine (1) for producing cross-wound bobbins, the yarn splicing device comprising a splicing prism (19) having Pneumatically controllable splicing channel (20), which can be closed by a cover element (23), provided on both sides of the splicing prism (19) with guide discs (41, 42), yarn clamping and Shearing means (11, 17) and holding and loosening tubes (34). According to the invention, the yarn guide discs (41, 42) are arranged at a distance from the outlet openings (27, 36) of the splicing channel (20).

Description

technical field [0001] The invention relates to a yarn splicing device for a station of a textile machine for producing cross-wound bobbins, the yarn splicing device comprises a splicing prism with a pneumatically controllable splicing channel, the splicing The channel can be closed by a cover element, and on both sides of the splicing prism are distributed yarn guide discs, yarn clamping and shearing devices as well as holding and opening tubes. Background technique [0002] Yarn splicing devices designed to pneumatically join two thread ends have been known for a long time in relation to the stations of textile machines producing cross-wound bobbins, such as cross-winding bobbins. Yarn splicing devices have been described in many patents. describe in detail. [0003] With such a yarn splicing device, two thread ends formed, for example, by means of a yarn interruption device or a controllable cleaning knife are joined together pneumatically so that virtually the same join...

AI Technical Summary

Problems solved by technology

[0019] This means that when such highly elastic yarns need to be spliced ​​together in any of the aforementioned splicing devices, it often happens that the thread ends cannot be sucked into the holding and opening tube and ready, and / or due to the relatively high The degree of crimp, the problem that the thread ends in the splicing channel of the splicing prism of the splicing device cannot be sufficiently overlapped, so that there is a problem that the thread ends will be at least partially blown out from the splicing channel of the splicing prism during the splicing process risk

[0020] The combination of both usually means that either a splice cannot be formed or the yarn is not spliced ​​to the correct quality

[0029] However, the yarn splicing device described in DE10124832A1 also has the disadvantages of being relatively complicated and thus expensive and high in maintenance costs

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