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Waste end stretching device for weaving machines

A stretching device, waste technology, used in the direction of looms, textiles, textiles and paper

Active Publication Date: 2020-12-11
PICANOL NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, there is a risk that such long waste ends jump back into the shed behind, in other words, re-enter the shed and weave between the warp threads

Method used

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  • Waste end stretching device for weaving machines
  • Waste end stretching device for weaving machines
  • Waste end stretching device for weaving machines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] figure 1 and figure 2 Perspective views of the waste end stretching device 30 seen from the front and back, respectively. figure 1 and figure 2 The waste end stretching device 30 shown in includes: a mounting body 31; a suction nozzle 32; a guide element 40 having a deflection element 41 attached to the body of the suction nozzle 32 at a first end 58 of the suction nozzle 32; and An annular spray device 33 is attached to the mounting body 31 at the second end 59 of the suction nozzle 32 . In the context of the present application, the end of the suction nozzle 32 which in use is arranged to face the edge of the woven fabric is referred to as the first end 58 . The opposite end of the suction nozzle 32 is referred to as the second end 59 . The wall at the first end 58 is referred to as the first end wall 46 .

[0036] The suction nozzle 32 has a lateral suction slit 34 extending in the longitudinal direction 52 of the suction nozzle 32 for sucking the leading or w...

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PUM

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Abstract

Waste end stretching device for a weaving machine with a suction nozzle (32) provided with a lateral suction slit (34) extending along the longitudinal direction (52) of the suction nozzle (32) for sucking waste ends (28) and with an opening (35) provided at a first end (58) of the suction nozzle (32) facing the edge of the woven fabric (3) for conveying waste ends (28) held in the suction nozzle (32) in a direction perpendicular to the longitudinal direction (52) of the suction nozzle (32), and wherein a deflecting element (41) is provided between the opening (35) and the edge of the woven fabric (3), which deflecting element (41) at least partly projects beyond the opening (35) for deflecting waste ends (28) held in the suction nozzle (32) in their path between the edge of the woven fabric (3) and the opening (35). A weaving machine with such a waste end stretching device (30), and the use of such a waste end stretching device (30).

Description

technical field [0001] The invention relates to a waste end stretching device for a weaving machine, in particular an air jet loom, and a loom comprising the waste end stretching device. Background technique [0002] In an air-jet loom, weft threads are inserted by means of air supplied by one or more main nozzles and successive relay nozzles arranged along the weft thread insertion channel. An air jet loom is shown eg in US 3,901,286. The portion of the inserted weft thread that extends beyond the side edges of the fabric and is not woven into the fabric is called the waste end. In order to remove the waste end after cutting, US 3,901,286 discloses a duct arranged below the fabric at the level of the temple provided for the woven fabric, wherein the duct has a mouth facing the fabric from below. [0003] During the time interval between two weft thread insertions, a part of the weft thread remains in the main nozzle or the associated main nozzle, and the main nozzle conti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D03D47/30
CPCD03D47/308
Inventor M.格斯奎雷
Owner PICANOL NV