Anti-static high-holding-force elastic card clothing and forming process thereof

Abstract

The invention relates to anti-static high-holding-force elastic card clothing which comprises a plate-shaped base body and a carding assembly. The carding assembly is composed of a plurality of conductive metal card wires inserted into the plate-shaped base body in a matched mode. The plate-shaped base body comprises a fabric composite layer, an oil-resistant plate and a conductive metal plate. And the oil-resistant plate and the conductive metal plate are respectively glued on two sides of the fabric composite layer. And the conductive metal plate and the tail end of each conductive metal card wire are kept in an electric connection state. Thus, on one hand, it can be guaranteed that static charges gathered on the conductive metal card wires can be conducted out in time, and then the phenomenon that stripped fine yarn scraps are attached to the conductive metal card wires or fill installation gaps of the conductive metal card wires due to electrostatic induction is prevented; on the other hand, the oil-resistant plate and the conductive metal plate can synergistically play an auxiliary supporting role on the conductive metal card wires, and it is guaranteed that the conductive metal card wires are always kept in a correct posture in the yarn combing process. In addition, the invention further relates to a forming process for preparing the anti-static high-holding-force elastic card clothing.

Description

technical field [0001] The invention relates to the technical field of textile equipment manufacturing, in particular to an anti-static high-holding elastic card clothing and a molding process thereof. Background technique [0002] Card clothing is one of the core parts of the carding machine. It is wrapped on the drum to form a flat and sharp needle surface, which is used for carding fibers, and can also be used for opening and removing impurities. According to the different processing requirements of spinning raw materials, elastic card clothing and rigid card clothing can be appropriately selected. [0003] In the prior art, such as figure 1 As shown in , the elastic card clothing is mainly composed of a base cloth and a U-shaped steel needle. The U-shaped steel needle is made of high-carbon steel wire bent and inserted longitudinally on the base fabric. The base fabric is required to be firm and elastic. The base fabric is generally made of 3 to 9 layers of fabrics...

AI Technical Summary

Problems solved by technology

During the actual application of the carding machine, the following problems were found: 1) During the process of yarn being carded, the fine yarn debris is bound to be peeled off from the surface due to the friction force, and then it is very easy to adhere to the U-shaped steel needle In addition, fine yarn scraps will be filled in the gaps formed between the U-shaped steel needles. In severe cases, carding may even occur due to insufficient exposed length of the comb teeth. The operation failed, and it was difficult to carry out the subsequent needle copying operation. The reason is that during the carding process, the U-shaped steel needle accumulated a large amount of static charge in it due to the continuous friction force, and the fine yarn scraps were firmly attached to the surface due to electrostatic induction. Elastic card clothing; 2) It is difficult to guarantee the direction accuracy of a single yarn after carding, and the parallelism and spacing of two adjacent yarns exceed the standard, which is not conducive to the subsequent weaving or gluing of the yarn into cloth. Cloth operation, and the quality of the cloth will also be affected. The reason is that the working outer diameter of the comb teeth of the U-shaped steel needle with fine yarn scraps attached is bound to be greater than the theoretical design outer diameter (increased in disguise) , and along its length direction, according to the specific layer thickness of the attached fine yarn scraps, the value of its working outer diameter is not fixed

In addition, during the combing process, the comb teeth on the U-shaped steel needles will inevitably be subjected to lateral pulling force, and the U-shaped steel needles are inserted on the base fabric with excellent elasticity. The above two factors will inevitably lead to U-shaped steel needles. Shaped steel needles perform reciprocating high-frequency yaw motion, which can easily lead to the occurrence of entanglement between yarns due to excessive vibration amplitude

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