Discussion on the maintenance of semi-automatic doffer

The smooth operation of semi-automatic doffing machine and the breaking rate are directly related to the labor intensity and efficiency of doffing workers. I maintain the experience that summarizes in practice to make a communication with everybody to improve jointly.

The doffing track and the pipeline on wheels should be straight, the positioning between platforms should be consistent, and the doffing machine should be barrier-free.

2. Positioning of yarn drawing disk

Make the line between the arc point and the center of the circle in the prerelease disc perpendicular to any spindle. The height of the arc point in the unwinding disc should be on the same plane as the vertex of the third spindle behind it. The distance between the arc point and the spindle should be kept at about 10mm. If the phenomenon of skipping shows that the Angle of the drawing disc is too straight, increase its tilt Angle slightly. The positioning displacement caused by collision and bending of the connecting rod on the bottom plate should be prevented.

The material transformation doffer of the prerelease plate

The original pre-release plate is made of bakelwood cemented by multiple layers of materials. During operation, collision with the spindle will result in peeling and self-sharpening. The yarn at the bottom of the bobbin is easy to be cut, which will increase the workload of the barrel swing head and increase the consumption. We choose 10MM thick nylon plate for processing and production of pre-release plate, which has a good viscosity collision is not easy to peel and produce burrs; It is not easy to form black scale to pollute the yarn after long-term friction with chemical fiber products.

4 yarn bar *** good choice of diameter of 6 mm stainless steel, work arc to be straight, so as not to cause too much shear fracture increase, length control to be short, in order to reduce the amplitude of the yarn bar. Its running channel should be smooth and barrier-free. This is effective in reducing breakage.

The 5 side wheels are made of steel for easy welding maintenance after wear and tear, and 202 bearings are used internally to increase the diameter of the shaft and increase the strength of the broken line. Reduce shaft consumption.

6 doffing bucket