Weft insertion device of air jet loom

A technology of weft insertion device and air-jet loom, which is applied in looms, textiles, textiles, and papermaking, etc., can solve the problems of inability to completely prevent air discharge, and inability to prevent weft yarns from flying out.

Pending Publication Date: 2022-04-12
TOYOTA IND CORP
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, even if the guide hole wall surface of the reed teeth is formed with an inclination angle like the weft insertion device of the air-jet loom described in Patent Document 1, it is impossible to completely prevent the discharge of air to the opening side of the weft traveling path.
Therefore, according to experiments, it has been found that the weft yarn may not be able to prevent the weft yarn from jumping out of the weft yarn running path, especially when a highly rigid weft yarn such as a filament is used.

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 of air jet loom
  • Weft insertion device of air jet loom
  • Weft insertion device of air jet loom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0036] Hereinafter, Embodiment 1 of the present invention will be described in detail with reference to the drawings.

[0037] figure 1 It is a schematic diagram of the air-jet loom of Embodiment 1. The air jet loom 1 is provided with a yarn feeding device 10 for supplying a weft yarn 11 . The weft yarn 11 is drawn out by the rotation of a winding arm (not shown), and is wound up on the storage drum 12 to be stored. A weft locking pin 13 for unwinding or locking the weft yarn 11 from the storage drum 12 and a balloon sensor 14 for detecting unwinding of the weft yarn 11 from the storage drum 12 are provided near the storage drum 12 . The yarn feeding device 10, the storage drum 12, the weft yarn locking pin 13, and the balloon sensor 14 are fixed to an unillustrated frame of the air-jet loom 1 . In addition, the weft locking pin 13 and the balloon sensor 14 are connected to a main control device 50 that controls the overall operation of the air jet loom 1 . The main contro...

Embodiment approach 2

[0069] Next, the weft insertion device of the air-jet loom according to Embodiment 2 of the present invention will be described. In addition, in the following embodiments, the same as that of Embodiment 1 Figure 1 to Figure 8 The same reference numerals denote the same or similar constituent elements, and thus detailed descriptions thereof will be omitted. The weft insertion device of the air jet loom according to the second embodiment has a configuration in which the arrangement of the first main nozzle acceleration pipe 70 , the second main nozzle acceleration pipe 71 , and the guide nozzle acceleration pipe 64 is changed from that of the first embodiment.

[0070] Figure 9 ~ Figure 11 It is a schematic side view when the outlets of the first main nozzle accelerating pipe 70 , the second main nozzle accelerating pipe 71 , and the pilot nozzle accelerating pipe 64 arranged differently from those in the first embodiment are viewed from the profiled reed 40 side. exist Fi...

Embodiment approach 3

[0076] Next, the weft insertion device of the air-jet loom according to Embodiment 3 of the present invention will be described. Compared with Embodiment 1, the weft insertion device of the air-jet loom according to Embodiment 3 has a structure in which the main nozzle is changed to a main nozzle having a main nozzle acceleration tube corresponding to six-color weft yarns.

[0077] Figure 12 is a schematic diagram of the main nozzle 22 and the pilot nozzle 60 . The main nozzle 22 is a 6-color main nozzle that sends out 6-color weft yarns, and has: a main nozzle base 22a, a first main nozzle acceleration tube 70 and a second main nozzle acceleration tube respectively arranged on the main nozzle base 22a corresponding to the color of the weft yarn. 71. The third main nozzle accelerating pipe 72, the fourth main nozzle accelerating pipe 73, the fifth main nozzle accelerating pipe 74, and the sixth main nozzle accelerating pipe 75. In addition, the first main nozzle acceleratin...

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

The invention provides a weft insertion device of an air jet loom, which can restrain air from being discharged to an opening part side of a weft yarn running path and can stably insert weft yarns to the weft yarn running path. A weft insertion nozzle (20) of an air jet loom (1) is provided with: a main nozzle (22); and a guide nozzle (60) which is arranged in parallel with the main nozzle (22) and injects air towards an inlet (41a) of the weft yarn path (41). The guide nozzle air injection starting time when the guide nozzle (60) starts to inject the air is before the main nozzle air injection starting time when the main nozzle (22) starts to inject the air, so that the air can be prevented from being discharged to the opening part side of the weft yarn running path (41), and the weft yarn (11) can be stably inserted into the weft yarn running path (41).

Description

technical field [0001] The invention relates to a weft insertion device for an air-jet loom. Background technique [0002] As a weft insertion device for an air-jet loom that injects compressed air (air) from a weft insertion nozzle to inject a weft yarn, there is known a weft insertion device for an air-jet loom such as that described in Patent Document 1, for example. In the weft insertion device described in Patent Document 1, there is a structure for preventing the weft from flying out of the weft running path caused by air being discharged to the opening side of the weft running path of the profiled reed. In this structure, the inclination angle of the guide hole wall surface of the reed teeth forming the weft yarn traveling path is formed at a section closer to the main nozzle than that of the guide hole wall surface arranged at a section opposite to the main nozzle. The inclination angle is small. [0003] Patent Document 1: Japanese Patent Application Laid-Open No....

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
IPC IPC(8): D03D47/30
CPCD03D47/3013D03D47/3053
Inventor 牧野洋一垣内夏树铃木藤雄
Owner TOYOTA IND CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap