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Carding machine ultra-short section autoleveling device

Author:Xinjinlong Machinery-Fabric Recycling Machine Manufacturer

When the sliver, the short film CFD card autoleveler has a high requirement for uniformity of choice. 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.

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.

As can be seen from Figure 3-6, the device detects the thickness of the batt from the feeding roller to the batt, and the batt thickness change between the cotton piece and the measured displacement sensor rod is converted into an electrical signal, which is a feedforward signal. The controller feed-forward times is compared with the set signal of the number of batts, the deviation calculation is processed by the controller, and the controller outputs the command via the AC speed control system to change the color of the cotton feed roller compared to the speed to eliminate the thickness of the carded batt The effect of fluctuations affects the uniformity of the strip. This kind of management control system does not have the feedback information channel from carding to the feeding roller, only the thickness of the input cotton layer can be measured, and the thickness of the cotton layer can be continuously changed through the network controller. Change the rotation speed of the cotton feeding roller in a timely manner. If the cotton layer is thick, reduce the rotation speed of the cotton limiting roller, and try to keep the feeding amount at the set amount.

If the cotton layer is thin, speed up the rotation speed of the feeding roller, and try to develop and keep the feeding amount at the set amount. This risk control method is called feedforward control, also known as an open-loop process control, which belongs to different disturbance compensation costs. Control is used for students to overcome the influence of large fluctuations in the thickness of the cotton layer on the evenness of the sliver. When the two segments are used long and short, it is called the mixing ring autoleveling. Both long-segment autoleveling and short-segment autoleveling require a fast-developing response without overshoot or oscillation. To this end, it is required to develop a new type of biosensor and low inertia motor, and at the same time, it can adopt China's advanced control and management strategy, which is an important research topic of the electromechanical information integration of the carding machine.


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