Rubber roller use of synthetic principles and pitfalls

Rubber roller of synthetic principle and error - 2019 10 - Aprons 10 roller is one of the most important of spinning equipment directly affects the quality of spinning, each enterprise use of rubber roller aprons also attaches great importance to. But with new technologies, new processes, new equipment, new equipment as well as to the rubber roller aprons with the rapid development of new technology to understand the limitations of, often there are many pitfalls in actual use, caused a lot of unnecessary quality problems. Rubber roller type choice as far as possible choose pure cotton varieties from processing rubber roller; Polyester/cotton varieties as blended number use free treatment and micro plastic roller as far as possible; Polyester processing is generally selected varieties of rubber roller, but temperature and humidity control good enterprise, can choose microprocessor; Is generally selected high quality demand of users, processing, quality is low, general selection processing rubber roller. Rubber roller diameter when choosing rubber roller diameter often slants big, even to about 36 mm, good elasticity, back to the ground more, can both save costs and improve quality. Rubber roller diameter is advantageous to the drafting force boundary extension, but mechanical wave into elliptical deformation of rubber roller pressure, increase the CVb value. Response: according to own actual situation, a reasonable choice rubber roller diameter. , such as to increase the supporting and back to also want to consider technology cycle, avoid wasting and quality deterioration. Rubber roller structure of aluminum lining rubber roller pressure resistance, good stability, but the price is expensive; Double roller go ripe period is longer, set of big difference exists in the internal stress, easy to aging concave, but the price is relatively cheap. Response: his need, the quality requirements of high use aluminum foils, low quality requirements, use double deck. Area after the selection of rubber roller area after the rubber roller to choose main consideration collocation principle, hardness higher than former rubber roller generally 5 ~ 10 degrees, in diameter smaller than former rubber roller 0. 5 mm～1. 5 mm。 But for V type draft, rubber roller diameter is better than former file. If choose old rubber roller, rubber aging degree is different, lead to the rubber roller's hardness, the yarn weight unevenness and difference of ingot increase, at the same time, the change of friction is bound to the recessive hardhead and recessive mechanical wave. Response: rubber roller after class is a bit low, can choose a slightly higher hardness, diameter smaller, cots except V type draft. Aprons selection aprons on general master principle is soft hard outside and soft inside under the hard, panasonic on the principle of using in order to reduce the ripe period with the method of old and new match. The one-sided emphasis on cycle, wear-resisting, so often choose aprons with thick and hard for the principle, lead to top and bottom aprons run out of sync, and beating. Response: according to the yarn varieties, pin type, pressure on the form and amount of pressurized size selection of synthetic specifications. Pure cotton, generally thinner and softer, chemical fiber generally thicker and harder, but it is important to note that collocation, up and down the total thickness should not be more than 2 mm. Of plate spring pressure, special attention should be paid due to a lack of flexibility, hard pressure, so the aprons circumference should be appropriate. Grease use grease issue is the most easy to ignore. In fact many companies use grease is improper, should be chosen according to the requirement of extreme pressure lithium base grease, but many companies choose the normal lithium base grease. Mainly ordinary lithium base grease is not high temperature resistant, easy to melt. Due to the strong permeability of oil in the rubber, rubber roller surface of molecular motion is accelerated, rubber roller heat resistant ability is abate, surface produces a lot of static electricity, wind flowers, appear thereby bound rubber roller problems. The key is a lot of enterprises without realizing it, and take other ways to solve the problem, the effect is not obvious, waste of resources. Response: choose 3 extreme pressure lithium base grease, qijia, add less, conditional enterprises can join the imported oil. Rubber roller bearing of many enterprises in the use of aluminum lining and when using the same double roller bearing, actually this is totally wrong. Due to the lining rubber roller lining for the metal aluminium, friction damage easily, and more than double need lubrication, so the clearance should be than double. To avoid the generation of mechanical wave and eccentric. Response: the aluminum liner bearing and double bearings have a correct understanding, eliminate the gap, the smaller the better quality the one-sided view, aluminum foils, and double use of different types of top roller bearing.