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Balloon preventing device for weft feeder of loom, especially air jet loom

A technology of air-jet loom and weft feeding, applied in looms, textiles, transportation and packaging, etc., can solve problems such as failure to obtain expected results

Inactive Publication Date: 2006-10-25
L G L ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, all these known workarounds do not work as expected

Method used

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  • Balloon preventing device for weft feeder of loom, especially air jet loom
  • Balloon preventing device for weft feeder of loom, especially air jet loom
  • Balloon preventing device for weft feeder of loom, especially air jet loom

Examples

Experimental program
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Effect test

Embodiment Construction

[0026] In the figures, reference numeral 1 generally designates a projected weft feeder for a jet loom, in particular an air jet loom. In the prior known technology, the weft feeder 1 comprises a fixed cylinder 2 with a variable diameter, on which a rotating arm 3 is connected to a flywheel 4 and driven by a motor 5, the rotating arm winds multiple turns of weft yarn on the cylinder to Constitute the reserve weft yarn RT, a weft yarn brake 6 used to stop the movement of the weft yarn F is connected to the cylinder 2 of the weft feeder 1, and is driven by an electromagnetic driver 7 to release the weft yarn, so that it is unwound from the cylinder 2 and is Unwinding stops when the predicted weft insertion length is reached. A microprocessor (not shown) pre-set to manage the entire system of feeding of the weft yarn F generates a signal to control the weft yarn brake 6 and an additional signal to control the motor 5, based on such control signals the progressively unwound weft y...

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PUM

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Abstract

An anti-balloon device disposed downstream of a weft feeder of a loom, more particularly a predictive weft feeder of an air-jet loom, comprising a structure in the form of a substantially tubular through-hole , preferably frustum-conical in shape and adapted to pass therethrough the weft yarn unwound from the weft feeder, and to control the travel path of the weft yarn by overcoming the centrifugal force acting on said weft yarn. According to the invention, the structure is shaped like a bottomless basket formed by end rings at both ends and longitudinally inclined rods interposed therebetween, the straight rods being spaced obliquely from each other and arranged around through holes for controlling weft yarns route of travel.

Description

technical field [0001] The present invention relates to an anti-balloon device or similar device, generally but not exclusively for weft feeders of looms, in particular predictive weft feeders of air-jet looms. Background technique [0002] As is known to experts in the field, the weft feeder is a device inserted between the drum and the loom, the specific function of which is to feed the yarn into the loom at each weft insertion, first by the The device winds several circles of weft yarn on a drum-shaped weft feeder, and then sends this section of weft yarn out; another function is to rewind the weft yarn on the drum with the same number of unwinding turns to restore the weft yarn reserve. The preset weft feeder also has the function of measuring the length of the released weft yarn at each weft insertion. For this purpose, a predictive weft feeder generally includes: a cylinder with variable diameter, on which there is a rotating arm, There are multiple turns of weft yarn...

Claims

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Application Information

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IPC IPC(8): D03D47/34B65H57/22B65H51/22D03D47/27D03D47/30D03D47/36
CPCB65H57/22B65H2701/31D03D47/362
Inventor 彼得罗·延奥尼罗萨里奥·卡斯泰利
Owner L G L ELECTRONICS
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