Summary：Jumping yarn defects generally have more chances to be generated on the side of the sending weft sword. Therefore, different configurations can be used to adjus
Jumping yarn defects generally have more chances to be generated on the side of the sending weft sword. Therefore, different configurations can be used to adjust the weaving parameters on both sides. The time for sending the sword into the weft sword is appropriately delayed, and the time for the sword to enter the weft sword is appropriately advanced to send. Wei Jian entered a relatively clear weaving mouth.
Generally speaking, the opening time of cotton varieties should be 290°~300°, sword time 70°~75°, and when sending swords, the position of the sending weft sword should be 4~6 guide rails from the weaving mouth, and the position of the weft sword should be from the weaving mouth. ~ 4 guide rails, but also to ensure that the sword into the slow, quick sword, so that the sword with enough time through the clear Kendo, reducing the chance of jumping.
Adjust the position line height, generally only adjust the height of the stop frame and the back beam. When the warp stop and the back beam are lifted, the warp tension difference between upper and lower layers will increase. When the weaving mouth is full, the lower warp yarns will be tight and the upper warp yarns will be loose so that the warp yarns will be evenly arranged and a more full cloth will be obtained.
If it is lifted too high, the upper warp yarns are too loose and the warp yarns stick to each other, making the opening unclear and prone to star jumping. Generally, the height of the back beam of a variety of hemp cotton is 70mm-80mm, and the height of the stop-motion frame is 30mm-40mm, and both ends must maintain the level.