Title:
WEFT INSERTION METHOD AND WEFT INSERTION DEVICE IN AIR JET LOOM
Document Type and Number:
Japanese Patent JP2023110373
Kind Code:
A
Abstract:
To provide a weft insertion method and a weft insertion device, capable of suppressing the disorder of a yarn posture of a weft yarn at the time of weft insertion which has an adverse effect on the weft insertion while preventing the weft yarn from being damaged by residual pressure in an air jet loom comprising the weft insertion device for supplying compressed air to respective main nozzles by bringing respective valve devices into an open state over an injection period from injection start timing in the weft insertion device in the air jet loom in which a first main nozzle for weft insertion is connected to a first valve device via first piping and a second main nozzle as an auxiliary main nozzle is connected to a second main valve via second piping shorter than the first piping.SOLUTION: In the air jet loom, an operation state of a second valve device is brought into a small flow rate state which is a state of supplying a flow rate smaller than a steady flow rate which is a flow rate in an injection steady state in an initial injection period in which injection start timing is set in advance as a starting point.SELECTED DRAWING: Figure 6
Inventors:
NAGI KEIICHI
YAMA KAZUYA
TAIMA TOSHIYA
YAMA KAZUYA
TAIMA TOSHIYA
Application Number:
JP2022011779A
Publication Date:
August 09, 2023
Filing Date:
January 28, 2022
Export Citation:
Assignee:
TSUDAKOMA IND CO LTD
International Classes:
D03D47/30