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Carding machine licker-in speed and number of moving teeth

Author:Xinjinlong Machinery-Fabric Recycling Machine Manufacturer

Using the above cotton bundle test, if the feeding speed (output) in the original mechanical state is changed under the original mechanical state, it can be found that when the output remains unchanged, when the speed of the drum increases within a certain range, the percentage of cotton bundles decreases. small, but the percentage of tufts decreases as the speed increases. Carding machines are used to process cotton fibers and chemical fibers and belong to textile machinery. According to the spinning process, carding is an important process.

The front process of the carding machine is the opening and cleaning machine, and the latter process is the drawing frame (carding process) or the sliver coiler (combing process). 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. Grinder A spinning machine that turns fiber strands into rovings.

The main function is to draft and twist, and to wind the roving into a certain package to meet the processing requirements of the spinning frame. The main reason is the variation in the average number of teeth per fiber or per gram of fiber. Let C be the number of teeth per fiber, z be the total number of teeth on the drum, the speed of the cotton (m/min), the average length of the fiber (m), the ambiguity (rotation/min), and w is the cotton roller (g/min). m), Nij is the average metric number of fibers.

Teeth are typically produced with a C value of 0.5 to 1/1 fiber. When the card is used to improve the yield, to ensure that the effect of C will not excessively reduce the teeth, it is necessary to increase the licker-in fan accordingly. Punching rollers will now be used within the steering fan range for different domestic production yields listed in Table 3-4.

The rapid removal of the punching speed can not only improve the carding effect significantly, but also increase the fiber damage and increase the consumption of the roller pier bearing maintenance work. The carding machine feeder brocade holds the carding machine feeder roller and the feeder board to have a sufficient grip on the cotton layer. When the main output of the carding machine continues to increase, the thickness of the fed cotton layer, the quantitative weight, or the friction coefficient of the fiber web feeding roller and the feeding plate for two hours, all need to increase the stacking effect.

Strengthen the square station of the equipment to hold the cotton layer, and the general enterprise adopts the problem to increase the pressure on the cotton roller. However, if the pressure is too heavy, it may not cause the cotton feeding roller and the middle part to bend upwards, weaken the roller's grip on the cotton layer as the middle part, and offset the benefits of its own pressure method to increase the environment and improve the unevenness of the steamer. There is an increase in demand for uneven lateral grip of the cotton layer. If some grippers with spring balances are used, and the cotton whiskers are pulled out a certain amount of fibers near the exit of the cotton feeding roller and the cotton feeding board, the gripping force and gripping force caused by the entire width of the cotton layer can be calculated. Displacement is uneven.

Adjusting the amount of pressure applied to the cotton roller can directly obtain the amount of pressure with larger gripping force and less uneven gripping force. Different feeding rollers have different rigidity requirements due to their diameters. Under the same pressure technology conditions, the bending amount or deflection of each important part of the roller company's work is also different. Therefore, for different types of feed rollers with different diameters, the appropriate amount of pressurization varies accordingly.

In China, a deflection analysis test was carried out on a cotton feeder roller with a diameter of 70mm and a thorn of 57mm. Under the pressure of 400kg, the inlet gap between the cotton roller and the feeder plate was measured and plotted with a micrometer, and the following two results were obtained. Although the cotton feeding rollers have a maximum thorn of 0.48 mm and 0.94 mm in the middle of the key parts, respectively. This means that with a 70mm diameter feed roller the maximum spread is only half that of a 57mm roller. A feed roller with a diameter of 57 mm worked under the above-mentioned calculated pressure plate, and the quality of the tip web has been found to show signs of serious deterioration.

Therefore, the internal pressure of the cotton roller with this design diameter is usually limited to 200-350 kg. The feeding roller of the A186 carding machine has a diameter of 70 mm, which creates conditions for the heavy pressurization process. Generally, the pressurization amount used is 370-540 kg (including the self-weight of the feeding roller car).


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