Business of Ingots

[Keywords]: Siemens and the China Textile Machinery Company in a well-known large-scale joint Cooperation Successfully developed K3502 Carpet Continuous Twisted laying machine. K3502 Carpet Continuous Twisted laying machine spindle number 120; ingots from 500mm; total length of the whole machine 37m. Control system uses a machine to control both sides of completely independent way. China is a country with hand-woven wool and silk carpets in the country. Until Honeywell (former BASF) settled in Shanghai, before turning to use the BCF carpet weaving. With more and more offices and hotels, new carpet yarn plant expected. The plant initially produced low-quality tufted carpet yarn heat setting is now producing, and holds 30% market share. Tufted rug from China consumed 2.7 million m2 in 2002 to grow to 5.8 million in 2004 m2. Expected annual growth rate of the next decade 10%. Now, the twisting heat setting products account for 80% of the U.S. market, accounting for 55% Europe 60%, but Other Local market share of only 35%. Has not yet been a large number of countries using the technology in this area is likely to have high-speed development. Siemens and domestic enterprises together in a well-known large-scale textile machinery cooperate successfully developed K3502 Carpet Continuous Twisted laying machine. K3502 Carpet Continuous Twisted laying machine spindle number 120; ingots from 500mm; total length of the whole machine 37m. Control system uses a machine to control both sides of completely independent way. Left and right points are the same two completely independent control system. Control system is divided into head and body electrical switch box spindle control two parts. These include a display setting unit and the left and right system speed controller and the left and right spindle controller. 1. Display setting unit: Siemens TP270-10 color touch screen, is responsible for setting parameters to control orders issued and the display of machine status work. Screen display operating at around two parts, left and right side of the machine setting and display of process parameters and operating status. The main menu includes the following: Process parameters: parameters setting and management. Need to set a password. Parameters formula: the formula of various process parameters, easy to manage, need password. 2. Speed controller system: Siemens S7-226 PLC Responsible for the control; process parameters of the transmission and management; machine operation and run coordination; machine state data management; machine the fault information processing. Control block diagram is as follows. S7-226 PLC With CANopen bus (self communications card) basis, with the spindle on the spindle control card microcontroller connected to the completion of the spindle control, data acquisition. 3. Spindle speed control: Siemens MM44075KW by 2 units Inverter 60 sets of left and right side were driven spindle Motor . System controller settings and the spindle according to the actual average speed of communication through the use of control after operation Inverter Operation. Control accuracy 0.01HZ. 4. Winding speed control: Siemens MM4400.75KW by 2 units converter 2 sets of left and right side respectively, winding drive slow Motor . Winding inverter rotary encoder with integral supporting closed loop feedback system; control accuracy 0.01HZ. 5. Over-feed speed control: the two sets of Siemens MM4404KW converter 2 sets of left and right sides were driven overfeed gear motor. Over-feed inverter rotary encoder with integral supporting closed loop feedback system; control accuracy 0.01HZ. 6. Traverse speed control: by 2 units Panasonic 750W AC servo drives and drive motor plus reducer were moving left and right side of the yarn traverse, traverse winding, and speed to cross under the set angle, anti-folding length 1 and cross-angle cross angle between 2 cycle by 0.5 ° step increase, decrease run. 7. Spindle control: the spindle by the respective MCU. 1 spindle start, stop: the normal individual from the spindle stop. Mainly for electric spindle running, brake, break yarn signal to judge, namely, long and light in the interlock control signal. Be covered tube from the stop. Off yarn and loss of Zhang monitoring: generated in the process off in the twisting yarn or yarn tension fluctuation, the spindle stops can order the appropriate spindle required parking and the issue of fault signal. Each spindle with five kinds of state, normal operation, normal stop, break yarn, stall, full control. Through the actual operation proves: Siemens MM440 Inverter and S7-200PLC, performance and quality is stable and reliable, and convenient, fast.

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