Unlock instant, AI-driven research and patent intelligence for your innovation.

Weft insertion device for air-jet looms

A technology for weft insertion devices and air-jet looms, applied in looms, textiles, textiles, and papermaking, etc., can solve the problems of enlarged installation area, increased air consumption, and difficult operation of weft yarns passing through weft insertion devices

Active Publication Date: 2015-11-25
TOYOTA IND CORP
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of auxiliary nozzles creates problems, such as increased air consumption and increased installation area in air-jet looms
In addition, the addition of nozzles makes it difficult to carry out the operation of passing the weft thread through the weft insertion device

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Weft insertion device for air-jet looms
  • Weft insertion device for air-jet looms
  • Weft insertion device for air-jet looms

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The following will refer to figure 1 6 to 6 describe the weft insertion device of the air-jet loom according to the first embodiment. exist figure 1 The middle weft insertion device is generally indicated by the numeral 1. In the following description, the terms "upstream" and "downstream" shall denote directions relative to the direction of movement or travel of the weft yarn in the air-jet loom, unless otherwise specified. refer to figure 1 , the weft insertion device 1 comprises a weft insertion nozzle 2, a first tandem nozzle 3 arranged upstream of the weft insertion nozzle 2, a second tandem nozzle 4 arranged upstream of the first tandem nozzle 3 at a distance from the first tandem nozzle 3 , and a plurality of auxiliary nozzle groups 5 arranged downstream of the weft insertion nozzle 2 .

[0018] refer to figure 1 and figure 2 , the weft insertion nozzle 2 and the auxiliary nozzle group 5 are arranged on the sley 6 of the air-jet loom and swing back and for...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

PROBLEM TO BE SOLVED: To provide a weft insertion device for an air jet loom, which enables high-speed weft insertion. SOLUTION: A first tandem nozzle 3A is fixedly arranged on the upstream side of a weft insertion nozzle 2A provided on a slay 6, and a second tandem nozzle 4A is fixedly arranged on the upstream side of the first tandem nozzle 3A at an interval. A weft braking device 7A is arranged between the first tandem nozzle 3A and the second tandem nozzle 4A. The first tandem nozzle 3A, the weft braking device 7A, and the second tandem nozzle 4A are integrally configured. An acceleration tube 23 of the first tandem nozzle 3A is formed to have a length longer than that of an acceleration tube 41 of the weft insertion nozzle 2A. An acceleration tube 27 of the second tandem nozzle 4A is formed to have a length shorter than that of the acceleration tube 41 of the weft insertion nozzle 2A. Thus, the weft driving force of the second tandem nozzle 4A is set to be smaller than that of the first tandem nozzle 3A, thereby enabling high-speed weft insertion in a fluid jet loom while suppressing increase in fluid consumption and increase in the installation area of a weft insertion device.

Description

technical field [0001] The invention relates to a weft insertion device of an air-jet loom. Background technique [0002] Japanese Patent Application Laid-Open No. 01-280047 discloses a weft insertion device for an air-jet loom, which allows weft yarns to run stably without changing the weft insertion conditions of the main nozzle, and also allows the use of The pressure of the main nozzle is set low. Specifically, an auxiliary nozzle is set between the weft storage device and the main nozzle, and the injection pressure and injection period of the auxiliary nozzle are controlled according to the weft yarn traveling state, so that the force for conveying the weft yarn can be adjusted indirectly and automatically without changing the main nozzle. The weft insertion condition of the nozzle. [0003] In recent years, high-speed air-jet looms capable of operating at about 1000 RPM have been demanded to increase weaving productivity. In general, the passing speed of the weft ya...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): D03D47/30
CPCD03D47/30D03D47/3013
Inventor 滨口敦司牧野洋一
Owner TOYOTA IND CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com