The diameter of the stripping roller of the carding machine should be comprehensively analyzed considering three important factors: (1) At a certain speed of the stripper, the diameter of the stripping roller is appropriately reduced (d = 2R), and the rotation speed can be obtained sufficiently large In order to promote the peeling of the roller with a large centrifugal force, the cotton fiber can be peeled off, which can be relatively smooth and mountain-shaped from the sawtooth output. 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. 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. 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.
(2) The diameter design of the stripping roller of the carding machine should be guaranteed and the quality of the stripped cotton web should be well managed. (3) In order to ensure the manufacturability of the cotton spinning stripping roll, the minimum diameter of the cotton spinning stripping roll of the carding machine must be considered. The minimum distance between the peeling roller and the doffer is s = 0.127 ~ 0.
At 305mm, the maximum distance that fibers can be removed from the doffer surface is si = 0.9 mm. Doffer can use the stripping roller to strip cotton directly, the length of stripping area is l, which is called the effect of stripping rope length, or the theoretical stripping rope length. The center angle corresponding to the peeling roller is called the theoretical output angle of the peeling roller.
See Figure 2-26. The theoretical stripping column length l and stripping output angle of the stripping roller of the carding machine are as follows: From the geometric shape of Figure 2-26: Figure 2-28 (A) When R/r=D/d=6, the diameter of the stripping roller is d and theoretical stripping output angleφThe relationship progress curve. Figure 2-28 (B) shows the relationship between the stripping roller diameter d and the theoretical stripping chord length L when R/r=6. Theoretical stripping chord length L and output angle do not refer to the situation in which the stripping mechanism initially strips the cotton web during the start-up operation of the carding machine. When designing the structure of the stripping mechanism, it should be able to ensure the reliable output of the initial stripping web. sex.
In fact, due to the continuity of the cotton stripping roll, the cotton web in the theoretical cotton stripping zone is continuously output through adhesion and friction during the output process, which helps to strip the fibers from the Dover. In this way, after the cotton roll enters normal operation, the distance from Dover to the main length of the fiber can be about half. This is because most doffer fibers are hook-shaped and pure, and double-hook fibers with s ~ greater than this distance will not develop adhesion and friction peeling.