Many cards have a large drain. Special equipment for the textile industry on the winder. As the last process of spinning and the first process of weaving, winding is the link between the past and the next.“bridge”Therefore, it occupies an important position in the textile field.
During the spinning process of the spinning frame, the semi-finished roving or sliver is drafted, twisted, and wound into a spinning machine. The combed sliver and the needle-carding machine combine the sliver, the needle row is drafted to improve the sliver structure, and the roving is further spun into spun yarn on the ring spinning frame, which is the main spinning machine. The structure of the double twisting unit of the double twisting machine mainly includes the spindle braking device, the spindle part of the double twisting machine, the yarn winding device, and the special device of the double twisting unit. When dealing with large bottom discharges that are required to smoothly dislodge dust and short fibers, hang flowers on the bottom to avoid leaks, or clogging fibers that accumulate in the inlet.
The gap between the large drain bottom and the licker-in gradually decreases from the entrance to the export enterprise, and an airflow larger than the belly of the car is formed at the drain bottom mesh through the static pressure, so that the airflow can flow out of the mesh evenly and gently, and the favorable factor eliminates the short lint , dust. The static pressure technology inside the large leak bottom must be properly selected. If it is too small, the effect of eliminating short lint will not be significant. If it is too large, the air flow of the mesh discharge system will be too fast, which is easy to make it long and the fibers will be ejected with the airflow speed. Across the adjacent mesh structures, with the continuous accumulation of Chinese fibers, the mesh size is gradually clogged. At the same time, the high cost of static pressure inside the large leak bottom increases the resistance of the fiber to develop into the small leak bottom, and the corresponding risk increases, and it is easy to cause the pressure accumulation at the entrance to cause the fibrous tissue or even hang flowers.
The accumulated fibers or hanging flowers will be intermittently brought into the bottom of the big leak or fall into the belly of the car, causing the cloudy cotton net or the entrance to be white. The large gauge entry port in the drain is typically regulated between 4.76-9.53nun. The pressure gauge also rises to the big end of the leaking gas stream, excluding the leaked air and garbage will increase the big end of the air flow but miss the inlet end of the thin air stream is divided out, but does not include the litter less than, so the total The noil rate is reduced, and the impurity content of noil is increased.
When multiple trash batt feed inlets can receive small sizes, to avoid excessive recovery of small impurities. Large drain bottom outlet pressure gauge is usually 0.4-1. 6nun, the meter is too large, the net sticker plug.
Mesh plug paste to close the outlet end of the small metered drain can be improved. Enlarged intake hoods can solve this problem to some extent in mesh gauge plug paste. Specifications of large leakage bottom of carding machine (1) Large leakage bottom arc radius: In order to discharge the airflow at the large leakage bottom gradually and evenly, the gap between the large leakage bottom and the spine roller from the inlet to the outlet 5 points should gradually shrink.
(2) The end of the large leakage string: one of the factors of large leakage of the lower string affects the licker-in noil. When the dust knife height position remains the same, shortening the receiver chord, which equates to adding a second off the length of the mixing zone, where debris may have more chance to fall. At the same time, due to the thickening of the airflow at the inlet of the gear receiver exactly like falling debris.
When increasing production, since noil is not proportional to the increase in output, in order to maintain the noil and cleaning efficiency at a certain rate, the large drain should be shorter than the lower chord when the yield is low.