The noil flow in the belly of the car has a great influence, and the process parameters of the belly are involved. 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. 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. Air flow is generally divided into two categories: 1. When the air flow roller on the surface of the licker-in roller drives the fiber to rotate at a high speed, the surrounding air is rotated due to friction, and the air flow in the adhesion layer is generated. When the high-pass roller rotates, the short fibers and dust particles thrown by the centrifugal force move with the airflow in the boundary layer due to their slight specific gravity, while the heavy debris falls to the back shell through the boundary layer.
If the boundary layer flow of air is disturbed by the environment, not only the short fiber boundary layer flow will be noiled, and some long fibers will slough and serrations can become off-white from the licker-in. When the airflow can enter the bottom leakage of the carding machine, the gap of the bottom leakage inlet is larger than that of the dust removal knife, so we fill in the air from the belly of the car. Air flow escapes from the bottom mesh, and part of the short pile is also discharged from the mesh. A part of the discharge passes through the air and is reclassified and recycled at the inlet of the small leak bottom.
2. The chord and the fourth point meter of the recipient of the car belly element flow, and the cotton down in the car belly has a significant effect. The fourth plan is large, and it is easy to block the bottom discharge. In particular, when there is a mesh of grease that is not smooth, it is easier to air flow smoothly.
So that part of the available fiber, scattered in the belly of the car, has become off white, and the quilt has become serious. Therefore, apart from one processing technical point, how to reduce the fourth point meter, align related gas flow and other parameters for stabilizing fragmented leather (such as licker-in low pressure housing, the suction device, etc.), from the time of operation, Set the predetermined time, frequency and operation tool square stick, carefully empty the car belly, brush dust in the bottom tear mesh, in order to reduce turbulence, improve the state of cotton section to improve yarn quality and save usable fiber. Maintenance and repair personnel are meticulous in standard size specifications for installation of drain bottom locations, bottom drain cleaning and shaping corrections are also very important.
When the cotton fiber is carded by the licker-in, the impurities and short lint in the fiber are affected by the resistance of the traditional dust removal knife and the effect of the air pressure difference between the inside and outside of the small leakage bottom. And at the bottom of the leaking mesh, it descends to the belly of the rear car along with the airflow. That is, the so-called control of the belly of the rear car. In the sample, the small product impurities and lint around the Xinjinlong, due to centrifugal force, gravity and air comb, fall from the pores of the large leak bottom, and become a front car noil. The air flow can be maximized on the surface of the licker-in tooth structure. Due to the viscous optimization effect of these gases through the molecular width, with the increase of the thickness of the boundary layer, the air flow development speed decreases continuously. The farther away from the surface of the licker-in, the lower the speed. .
Therefore, the noils mostly start to fall together with the airflow organization.