The motion change curve of the roller is separated. In Figure 3-33 (C), the speed growth of the first wheel, the last wheel, and the tie rod (like) are set asη1, n2, according to the calculation model formula of the planetary gear train, the surface displacement S of the separation roller is composed of the constant speed NC part introduced by the Xilin shaft and the transmission speed nl part of the first swing arm F03 in the multi-bar mechanism. 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.
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).
During the spinning process of the spinning frame, the semi-finished roving or sliver is drafted, twisted, and wound into a spinning machine. The combed sliver and the needle-carding machine combine the sliver, the needle row is drafted to improve the sliver structure, and the roving is further spun into spun yarn on the ring spinning frame, which is the main spinning machine. 1. On the fa261 carding machine, take the motion curve of the separation roller as the starting point of the fixture, and calculate the displacement of the surface of the separation roller corresponding to each segment of the fixture. and 52 and then you add up the two.
Table 3-11 shows the calculated displacement per index for the corresponding motion separation of the separation roller profiles shown in Figure 3-34 for the FA261, FA251, A201D card rolls. 2. Effectively control the output data length of 540 in one clamp, the swing arm F03 of the first wheel swings left and right once, and the total swing angle of the forward and reverse directions is equal, so that the number of teeth rotated in the forward direction in one clamp of the first wheel is exactly equal to the reverse rotation Therefore, the positive output horizontal displacement of the separation roller caused by some problems in the transmission system is exactly equal to the maximum displacement of the reverse input and output, so it will not develop an effective information output. The Xinjinlong axis always rotates in an important direction, which makes the separation roller always rotate in a research direction (forward), which is to effectively improve the output of different lengths of the separation roller in one clamp.
Greater engagement rate, better overlapping fleece, increased fleece thickness. Shadows are less engaged and involved in sliver quality. After the carding machine is mainly at high speed, the output cotton web is subjected to a reciprocating traction time, and the jitter is violent at lower speed. In order to ensure the good bonding state of the cotton web and reduce some accidental drafting, the cotton web is required to have good bonding fastness; at the same time After the high speed in China, the air flow resistance and the subsequent increase will make the fibers formed on the outer sides of the jaws of the nipper develop in an "eight-shaped" shape and slope outward, resulting in the shortening of the length of the joint parts on both sides of the cotton web.
As a result, modern cards typically have a join ratio of 190% or more. In order to facilitate the high speed of the new card, the total amount of forward rotation and total reverse rotation of the separation roller is reduced, which reduces the length L of the separation clump, but the new card adopts the method of reducing the effective output length S. , to increase the engagement rate q, and further enhance the high-speed performance of the new T card.