The application of PLC in high-speed stretch yarn machine

Due to the stretch yarn made of dress socks with retractile, can be suitable for different shapes, such as unique properties, so in recent years, people's attention to stretch yarn products is gradually increased. Keywords: textile machinery high-speed rewinding a stretch yarn, project profile 1, the equipment in the production of stretch yarn, used in such as diapers on the high requirements of the product, has great flexibility and maintain dimensional stability, crisp anti-wrinkle, wool type sense is strong, has good air permeability. The equipment is belong to the non-standard equipment, produce a stretch yarn, can according to the requirements of the customer's different elastic, flexible changes. Graph one equipment in figure 2, the craft work station in the profile, the device has a total of 40, 40 station on the main motor and slotted drum motor controlled by two inverter, can choose station respectively during the period of work to stop and start. Two stepper motors traverse control axis and roll axis respectively two stepper motors technical requirements: as shown as the rolling shaft, the function of horizontal shaft is driven roll axis transverse movement, whose role is: the bobbin yarn folding. Traverse axle movement requirements: horizontal shaft connection control, a disk of the disk motion by '; Step into a '; To rotation Angle movement way; There are four Angle setting, various Angle parameters set by the touch screen. Rolling shaft according to a slower speed slowly rotating, set by the touch screen rolling shaft ( Oiling parameters) The speed. Two converter process requirement: host inverter requires a frequency up and down shocks work mode, in order to realize the stretch yarn looseness which, after mixing into yarn parameters need to set on the touch screen. Slotted drum drives ( The black stick motor) The parameters given by the touch screen. 3, the project USES 1 FBS - 14MAT2- AC，HU070S- 00. Second, the control system composition, system process flow diagram 1:2, I/O allocation table: 3, PLC controller external wiring diagram: the function of the three, the control system to complete 1, technological requirements: the equipment is a total of 40 working station, 40 station on the main motor and by two inverter to control the slotted drum motor, with every standing in the middle of a system board to realize independent stations can stop and start. Two stepper motor control horizontal shaft and roll axis respectively, turned on work. 一) Two stepper motors technical requirements: as shown for the rolling shaft, shaft is driven rolling axis transverse movement ( Back and forth) , whose role is: prevent bobbin yarn. （ 1) : horizontal shaft movement requirements: horizontal shaft connection control, a disk of the disk motion by '; Step into a '; To rotation Angle movement way; The setting and implementation of a total of four point the number of times each Angle, the Angle parameters set by the touch screen. The program will judge at the beginning, from the Angle from the Angle of Angle at first, in turn, Angle of two, three and four execution; Until the very end of the execution of the program so judgment to an Angle ( Including the number of Angle) Angle, the system will automatically return to continue. Figure 2: horizontal shaft shall be implemented in the operation diagram ( 2) : according to a slower speed rolling shaft rotate slowly, set by the touch screen rolling shaft ( Oiling parameters) The speed. b） Two inverter process requirement: ( 1) : the host inverter requires a frequency up and down shocks work mode, in order to realize the stretch yarn firmness of moderate, after mixing into yarn frequency of rise and fall, rise, fall in place of time parameters such as the need to set on the touch screen. Then through PLC and frequency converter, wrote place function parameters of frequency inverter, a triangular wave frequency concussion. ( 2) Slotted drum drives ( The black stick motor) The parameters by the touch screen for a given stored in the cache of PLC, communication to achieve data transmission by PLC and frequency converter. c) In the touch screen Settings manually stop and stop traverse axis motion picture, both to stop position and process is not the same. ( 1) : if in normal operation, someone operation touch screen '; Stop '; Button, the system will make the horizontal shaft do back to the origin after stop at the origin, waiting for the start signal. ( 2) : if, in the normal operation due to special reasons or power failure, need to stop the machine, can press the 'on the touch screen; Scram '; With external scram button, or equipment, horizontal shaft will immediately cease in the current position. After waiting for the next round of the start signal, cross shaft back to the origin, the first in the running according to set up a good point of view. 2, touch screen: the screen is used to set the host of the transducer and slotted drum motor ( The black stick motor) The inverter parameters. The images used to drive the traverse the motion of axis of the disk Angle and the number of times, its logical flow chart of visible. This screen is used to display horizontal shaft and roll axis movement state, and can be manually controlled traverse axle start to stop working, and work back to the origin, stop work; Point to move forward or backward debugging. This picture is used as the boot screen! 3, key analysis ( 1) , host of the pendulum frequency requirements, began receiving project without determine the frequency converter, frequency concussion four, project operation of debugging the program on March 15th, the client will try, to observe the stability and error rate. Including packing speed of calculation is in progress; Customer focused mainly on the operation efficiency of the entire device.
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