During the production process, due to differences in factors such as region, climate, raw materials, and process parameters, the problem of rubber roller tangles is common, making workshop life difficult and having a more serious impact on product quality. At present, almost all cotton textile enterprises are troubled by this problem to varying degrees, and they are also actively seeking effective measures to control rubber roller tangling. So what are the reasons why the drawing rubber roller is entangled?
01 Electrostatic entanglement
Any two objects in contact with each other Static electricity will be generated after separation, and the static charge has the characteristic of being distributed on the outer surface of the object. Mutual friction can be seen as a phenomenon of constant contact and separation, so the phenomenon of frictional electrification can be seen everywhere in life.
During the drafting process, slow or floating fibers will gradually transform into fast fibers, and friction will occur between fibers. Generally speaking, the same material will Contact will not cause charge redistribution, but the fast fiber is in contact with the rubber roller, so the fast fiber and the front rubber roller must be regarded as a whole. In this way, static electricity will be generated. At the same time, the rubber roller and the fiber are constantly in contact and then separated, which is another cause of static electricity. Assuming that enough charge has accumulated on the surface of the rubber roller, the next fiber will be easily adsorbed on the surface of the rubber roller when it reaches the nip. At first, there will only be a few fibers, and then more and more, forming entanglements.
02 Fiber Embedding
Sometimes cracks will occur on the surface of the rubber roller, but these cracks are not It can always be seen with the naked eye. The current types of coatings on rubber rollers are mainly divided into coating type and penetrating type. The coating type paint forms a film on the surface of the rubber roller after drying. During the drafting process, in order to ensure sufficient drafting force, huge pressure must be applied to the drawing rubber roller to form a friction boundary.
Compression deformation, rotation and huge drafting force jointly act on the surface of the rubber roller, and the surface of the rubber roller is prone to cracks, sometimes cracks in the paint coating, sometimes even cracks in the colloid due to aging. , under the action of the drafting force, the crack is enlarged as much as possible, and the fiber takes advantage of the gap. When the crack turns through the friction boundary, the crack is tightened, and the fiber is tightly embedded in it, eventually leading to entanglement.
03 Cleaning the rubber roller surface
The natural cotton fiber itself contains cotton grease and cotton wax , will inevitably be transferred to the rubber roller during the drafting process. If the cleaning and maintenance work is not done well, you will see a milky white mixture of cotton grease and cotton wax on the surface, which is difficult to remove, especially the black rubber roller; of course, the cotton grease in this form is Wax will not adhere to fibers, but the speed of the front rubber roller is relatively high. After a period of time, it will heat up and the temperature will rise. The viscosity of this layer of cotton grease and cotton wax mixture will increase, and the fibers may be adhered to the glue. The surface of the roller is damaged, eventually causing entanglement.
04 Other aspects
The management of the workshop is not in place and the cleaning condition is not good; the rubber roller surface Knife wounds will also cause flowers and entanglement. Blockage of the suction channel can also cause entanglement.
In short, if you find that the rubber roller is tangled, you must first carefully analyze the cause, find the problem, and then take different measures to solve it. </p
