The main feature of the closed-loop control system of the quilt production line is that it is adjusted first and then detected. In the technical system of the quilt production line, the control loop is closed, that is, it has an important reaction loop. 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. 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. Because there is no effect of the reaction loop, this system can actively correct the errors caused by the fluctuation of various influencing factors of the students, so that the quantitative output of the yarn sliver of the enterprise conforms to the normal living standard of the society, that is, the leveling effect of the uneven medium and long segments can be compared. it is good.
However, since it is after the first level detection, even the wavelength cannot be equal to or smaller than the uneven wave of the detection point, that is, even a small section cannot be uneven. The quilt production line adopts a closed-loop self-leveling device. The device detects all feed tickets, even 2 (when 6 is fed) or 3 (when 8 is fed) tickets, here is a schematic of the device.
A pair of concave and convex rollers are set at the exit of the homogenization zone as detection points, which are used to continuously detect the actual 6 feeding sheets. This quantitative signal is converted into a corresponding DC voltage signal by the sensor, which is set as Min. Compare Vstorm with the given voltage value V quantitatively specified in the note specification, and the difference signal after comparison is amplified by the voltage amplifier and sent to the power together with the voltage output by the tachogenerator of the rear roller (ie, the control point) of the leveling area. The amplifier drives the variable-speed motor by passing the rectified voltage to change the speed of the rear roller in the leveling area (the speed of the rear roller at this moment is the superposition of the basic speed of the rear roller and the additional speed generated by the difference signal) to change the leveling The drafting multiple of the two notes in the area can keep the quantitative output of the notes within the control range.