Looms have five major movements, which are shedding, weft insertion, beat-up, let-off and take-up movements.
The opening movement is according to the requirements of the fabric organization, The heald frame is driven up and down by the shedding mechanism, Divide the warp threads worn on the healds into upper and lower layers, forms a shed to create conditions for weft insertion.
citation The weft movement is to guide the weft thread on one side of the shed to the other side of the shed through the weft insertion mechanism.
hit The weft movement is caused by the steel reed in the beating-up mechanism, which beats the weft thread in the shed to the cloth fell. , The weft threads and warp threads are interwoven into a fabric with a certain degree of tightness.
Send The warp movement is caused by the warp let-off mechanism that continuously sends out the warp threads on the warp beam to keep the warp thread tension constant so that weaving can continue.
Vol. The take-up movement is that the take-up mechanism guides the fabric through the breast beam, pressure roller, and take-up roller, and then rolls it on the take-up roller with uniform tension. Whether it is a shuttle loom or a shuttleless loom, weaving is completed through the above five movements, so the five movements are the basis of the loom ,is an indispensable sport. The cooperation of the five major movements of the water-jet loom during the normal operation of the weaving process can be seen in the “Weaving Movement Diagram” (Figure 50).
The coordination of each movement time of the water-jet loom is mainly based on the fabric specifications and the performance of the warp and weft raw materials. Factors such as the shedding mechanism and the weft insertion mechanism are set after comprehensive consideration, “>Under normal circumstances, the reed width is about 160cm, the parking position of the loom is 180°~270°; the leveling position is 350°~355°; the water pump injection is 85°~90°; the clamper opening and closing is 110°~ 270°; hemming and leveling time: left hem 280°, right hem 20°. Of course, in special circumstances, specific analysis and testing are required, and the time for close coordination of the five major movements of the loom is also different, Appropriate adjustments should be made. </p
