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Apparatus for pneumatically connecting ends of yarns

A technology of air flow and connecting yarns, applied in the directions of transportation and packaging, thin material handling, conveying filamentous materials, etc., which can solve the problems of difficult yarn parameters and hindering the inhalation of yarn circles.

Inactive Publication Date: 2007-01-17
SAURER GERMANY GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0024] Due to the small diameter of the air flow channel, the yarn splicing device according to DE 34 05 304 A1 has proven to be hardly usable in practice, especially when processing difficult, e.g. stiffer yarns, since the small diameter of the air flow channel prevents The general yarn coil is sucked into the air flow channel
[0025] The disadvantage of this known yarn splicing device is that the air flow channel is inserted directly into the splicing head, so that it is difficult to adapt the air flow channel to each changed yarn parameter and usually requires the entire splicing head to be replaced

Method used

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  • Apparatus for pneumatically connecting ends of yarns
  • Apparatus for pneumatically connecting ends of yarns
  • Apparatus for pneumatically connecting ends of yarns

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Experimental program
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Embodiment Construction

[0048] figure 1 Shows a schematic side view of a spinning position 1 of a textile machine producing cross-wound bobbins, in the embodiment an automatic winding machine. Such textile machines generally have a plurality of such working spindle positions 1 arranged in rows with each other.

[0049] On these working positions 1 a number of bobbins 2 produced, for example, on a ring spinning frame (not shown) are rewound into cross-wound bobbins 13 of large packages.

[0050] For this purpose, the working position 1 is equipped with the various illustrated yarn handling and yarn detection devices as well as a separate control device and a so-called winding position computer 5 .

[0051] Such as figure 1 As shown, the yarn 3 unwound from the bobbin 2 goes according to its yarn path to a cross-wound bobbin 13 rotatably supported in a bobbin carrier 14, and is subjected to a so-called groove drum 12 during the bobbin operation. Friction driven, while the yarn 3 preferably runs thro...

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Abstract

A device for the pneumatic splicing of yarns, especially elastane yarns, has a splicing body defining a splicing conduit loadable with compressed air, as well as with pneumatic tubes for pneumatically preparing the yarn ends to be spliced, wherein the central axes of the pneumatic tubes intersect the central longitudinal plane of the splicing conduit. The pneumatic tubes are replaceably fixed in bores of the splicing body, with the inlet opening of the pneumatic tubes positioned in the immediate vicinity of one of the two outlets of the splicing conduit. The inlet opening of the pneumatic tube has a funnel-shaped contour that promotes insertion of the cut ends of the upper and lower yarns into the pneumatic tubes.

Description

technical field [0001] The invention relates to a splicing device for air splicing yarns, especially elastic yarns, which is equipped with a splicing head with a splicing slot into which compressed air can be introduced, and for holding the yarn ends to be spliced ​​for air pretreatment And an opener, wherein the central axis of the grip and opener intersects the middle longitudinal plane of the splicing groove. Background technique [0002] Yarn splicing devices using air-connected yarns on winding machines have been known for many years and are described in detail in numerous patent specifications, such as DE 40 05 752 A1 or DE 44 20 979 A1. [0003] Using this well-known yarn splicing device, two yarn ends produced after breaking or being cut off by a yarn clearer are connected by air flow, so that a seemingly knot-free yarn connection point is formed. [0004] That is to say, the so-called upper yarn wound onto the relevant bobbin surface is sucked by a suction nozzle a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H69/06B65H67/08
CPCB65H2701/319B65H69/063
Inventor S·沙顿
Owner SAURER GERMANY GMBH & CO KG