As one of the carding components of comber, cylinder is responsible for carding the front end of fiber tufts, eliminating the fiber front hook, improving the fiber straightness and parallelism, and taking away the short fibers, neps and impurities (including short fibers, neps and impurities intercepted in the process of top carding fiber tufts). It can be seen that the cylinder plays an important role in the whole carding process of comber, and its state, especially the problem of inlay, must be attached great importance. Based on years of experience in combing machines, netizens have had a heated discussion on this,
Let's listen to the causes of cylinder inlay, and what good suggestions netizens have for improvement.
Causes
The first row of pins in the cylinder is broken or tilted. The accidental damage of the cylinder seriously damaged the sharpness of the cylinder tooth tip, which made the fiber not easy to remove and caused the cylinder inlay and filling. For example, the needle roller bearing of the front swing arm is worn out due to lack of oil and wear, and the cylinder shaft is worn out, which causes the clamp plate to sink, causing the clamp lip on the clamp plate to collide with the cylinder comb needle, causing the needle teeth to be damaged. The carding of fiber whiskers by combing cylinder belongs to holding carding, that is, the upper and lower clamp plates hold the back end of the whisker cluster, and each row of needles of the cylinder successively pierce into the whisker plexus from the grip of the clamp lip, and then separate and comb from the back to the front. Therefore, the fiber resistance of the first row of needles is the largest, and it is easy to wear and fatigue fracture first. The fatigue fracture of the first row of pin teeth will be accelerated when the tooth density in the front area of the cylinder is too large, the working angle of the needle teeth in the front area is too small, the grasping ability of the needle teeth is too strong, or the quenching of the front part of the needle teeth is not qualified, and the hardness of the tooth tip is not enough. The wear and fatigue fracture of the first row of needles will be accelerated when the weight of the coil is too heavy, the transverse uniformity is not good, or the fiber straightness in the small coil is poor. The foreign bodies in the fibrous tendrils first damage the first row of needles, and may cause broken needles or crooked needles.
