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Splitting timing and start splitting of card separation rollers

Author:Xinjinlong Machinery-Fabric Recycling Machine Manufacturer

1. The amount of clockwise rotation and the length of time that it must separate before the start time of the cis-index value of the separation roller device at the start of the clockwise separation roller can not provide drying and response Quiet line movement begins to shorten clockwise The bank amount S cannot be compressed arbitrarily, so that the separation roller card has enough time to start to gradually accelerate clockwise to the zero speed point. Special equipment for the textile industry on the winder. As the last process of spinning and the first process of weaving, winding is the link between the past and the next.“bridge”Therefore, it occupies an important position in the textile field.

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. 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). Should be conveyed, the nipper to ensure that the edge reaches the separation claws at a separation speed faster than the edge when the edge or head end of the hook will cause the separation roller to hit, the bar appears at the amplitude of the entire wool hook; or because the separation roller advances The speed is slightly larger than that of the nipper, so that the surface speed of the hook is not caused, but the draft is too small, so that the new front end of the stripe is large enough to pull out the force, so that the retractor is not thick enough is a clump. The cotton web and the trailing end of the previous cycle are thin, because the difference in the thickness of the two is a weak bond, and under the influence of the cotton web tension, the new leading end is easy to tilt the bundle to form“Fish scale spotted cotton thread”.

At this time, the separation roller should be the appropriate card clockwise timing from the start of separation along the extended acceleration turn to the time between the start of separation to ensure a greater surface speed of the separation roller at the start of separation. If there is some reason in production, the time when the new whiskers arrive at a separation jaw can be earlier, that is, the time to start the separation work is earlier, so that the Sdc is shortened, and the corresponding enterprise should realize the timing of the separation roller in advance; spinning long-staple cotton, because It has a slender and soft head end that is easy to sag. When it starts to pass through the separation, the position of the surface of the separation roller is relatively low, and it is easy to generate front hooks. The timing of the separation roller should be earlier; , the air flow resistance continues to increase, the whiskers rise after the nipper is opened, and the time is shortened, the front hook is prone to appear in the cotton net, and the timing of the separation roller should be earlier appropriately. 2. Technological influence of the timing of the forward rotation of the separating roller of the carding machine When the timing of the forward rotation is adjusted, the motion curve of the separating roller is basically unchanged, but the number of divisions of the abscissa in the motion curve is changed.

For example, the FA261 type in Figure 3-35 and Table 3-ll originally designed the forward rotation timing to be 16.5 divisions, but now the forward rotation timing is delayed to 17.5 divisions. In all cases, 16 divisions were changed to 17 divisions, and other divisions were also delayed by one division in turn, and the reversal timing was also changed from 6 divisions to 7 divisions. It can be seen from Table 3-13 that changing the timing of the forward rotation effectively controls the output data length S to remain unchanged, and the difference between the separation management working time length K and the joining length G is less than 1mm, which has little effect on the evenness of evenness and the quality of the joining process. , but has a greater impact on the performance analysis of the latter three technologies. The timing of forward rotation is 1 degree later, and the amount of continuous forward rotation can be obviously increased, which may affect the grip of the end of the brocade net; while the amount of reverse rotation in the front section and the length of the cotton net poured into the machine do not increase or decrease significantly, so that the end row When the needle passes through the tightest point between it and the separating roller, it is not easy to grab the tail of the cotton web and the fibers.


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