Summary：It is generally better to grasp the lower warps and not lower them. It is better for the sword head to enter the weaving mouth without touching the upper and lo
It is generally better to grasp the lower warps and not lower them. It is better for the sword head to enter the weaving mouth without touching the upper and lower warps. On the upper shaft and overhaul work, adjustments shall be made to the lifting hedging to ensure that the "three togethers", that is, the heald frames, the heald shafts, the step plates and the rotors. “Siping” refers to the heald frame (complex bar) flat, the helicoid bolt flat, the heald heald plate flat, and the tread rods flat.
If unqualified, it is also necessary to check whether the heald jack has come off, whether the treadle top wire is loose, whether the hoisting axle bearing pad is worn or not, whether the hanging strap is deformed or not. Generally, the front and rear positions of the hoisting shafts are about 110mm to 120mm, and the turbulence does not exceed 0.8mm, and the hoisting height is 400mm to 410mm.
In the above measures, a 8s×8s42×38 cotton/cotton plain weave experiment was conducted on a GA747 type loom, the efficiency of the loom was increased from 50% to 65%, and the “three jump” defect was reduced from 500 to 200 in the 90m cloth. These data are tracked by the platform.