Beer Filling, Capping Machine Control System Introduced Plc
1 Introduction Malt beer production process is divided into manufacturing, wort production, before fermentation, after fermentation, filtration sterilization, packaging, few working procedure. Beer Filling, Capping machine parts are packing process. After membrane filtration of beer into the rotation after the pipeline jar, and then the wine into the bottle valve, gland, was bottled beer. Beer filling, capping machine efficiency and directly influence the degree of automation of beer a day.
Order to satisfy the growing beer industry and beer production scale of demand for modern high-speed filling machine filling the requirements of domestic beer manufacturers are actively seeking or modified this unit beer filling equipment, make it a good performance, advanced technological level and high production efficiency, safe and reliable operation, maintenance and low cost modern beer filling machine.
2, beer filling, capping machine working principle and control parts
Liquid filling machine by filling technology can be divided into pressure filling machine, pressure filling machines and vacuum filling machine. Beer filling, capping machine pressure filling method is carried out under atmospheric pressure above the filling, liquid storage cylinder pressure is higher than the pressure bottle, beer bottles into the liquid by pressure.
Line at home and abroad to achieve filling process is basically: The rotation produced by rotating jar to be placed in the jar’s empty slots will be fixed by mechanical agencies in jar For the upper vacuum valve is opened that have been vacuum sealed bottles for processing, steers the operation of the valve stem outside, open the valve on the bottle filled with CO2 gas, vacuum cam to open the vacuum valve, the bottle out of air and CO2 mixture, valve open again on CO2 gas bottle filling, filling valve inside the valve pressure close to the back pressure in the bottle when the gas pressure to open, liquor into the bottle along sidewall, through pneumatic or electric control valve to achieve the beer filling filling installed.
Current international advanced beer filling, capping machine’s control system consists of photoelectric switch position detection part, take the bottle with, jar speed frequency control part, controlling the programmable logic controller, touch screen and other components. Filling sealer device and the mechanical structure of PLC programmable control, frequency conversion stepless speed regulation, automatic control technology and other modern human-machine interface means complete, forming mechanical and electrical integration.
3, the control part of the reform program
Domestic beer manufacturers are now using a lot of filling, capping machine automation control system mixed; all the manual button and the process switches are set in a control box of the panel, PLC control most of the OMRON Corporation of Japan or Mitsubishi’s early products, equipment chain control, protection settings less, plus the beer filling the scene bad environment, humidity, causing severe corrosion of switch contacts touch, the system of signal detection part of the high failure rate, resulting in device control system’s reliability is low, normal operation and short cycle phenomena.
The actual transformation of the Yalu River Beer Co., filling, capping machine’s control system as an example to introduce the transformation methods, transformation of such equipment to clarify thoughts and ideas of control; according to the actual site conditions, re-written PLC’s run the program. For beer filling, capping machine control system the actual situation and, based on the actual site conditions, re-design of the device PLC control system. This transformation can be applied the same methods and ideas with other liquid media filling plant.
3.1 System hardware configuration Use Mitsubishi’s FX2N128MRPLC replace the original system uses two sets OMRON Corporation C60PPLC, the original system of PLC because the old models, and computer on-line communications need to configure a special converter, the system needs more external I / O input point, the expansion module is more difficult to find spare parts. FX2N128MRPLC is an integrated 128-point I / O, controller box, with the computing speed, instruction rich, high cost performance, on-line programming is simple and easy expansion, a Mitsubishi FX series, the most powerful small controller.
(1) use of Mitsubishi’s 900 series of 970GOT man-machine touch screen replaces the original system using the control panel button and the operation of the display device operating parameters. 970GOTHMI high brightness 16 color display, through the convergence of connectivity and FX2N128MRPLC the CPU direct connection, fast response. Has many maintenance functions, such as list-style editing, Ladder monitor (troubleshooting) function, the system monitoring function is used to find faults and maintain PLC systems.
(2) filling, capping machine converter does not change in the transformation, on-site means of detecting the signal is still detected by switching due to long-term work in the humidity detection switch big occasions, so select the capacitive proximity switch, according to PLCI / O wiring terminals, select the PNP-type proximity switches.
3.2 System Programming PLC controller programming focus and core of the rotation around the jar and the jar on the speed control 60 bottles of bit detection of the location of displacement, broken bottles, empty bottles of position detection of the location shift and Related filling valve control. One bottle-bit shift detection program, using the left shift instruction Mitsubishi PLC, drive the implementation of the conditions input from the OFF-ON every time changes, the implementation of the N2-bit mobile, N2 the number of bits for the mobile.
(1) bottle of displacement seat program
413LDX055; machine count input pulse measurement test
414PLSM49; main motor speed measurement detection of rising edge input to take place after the M49 derivative
416PLFM301; main motor speed measurement test input points to take the bit after the falling edge of differential M301
418LDIM590; into bottles of the number of detected
419ANIX005; chain protection point 420ANIX006; emergency shutdown protection 421OUTM50; into whether the bottle bottle bottle-bit detection
422LDM49; main motor speed measurement detection input
423SFTLM50M500K60K1 Bottle-bit shift detection
Using PLC-bit left shift instruction, this instruction is the core of the sub control program is one of the main motor and bottle-bit synchronous detection movement detection switch the bottle, turn the main motor of each week, it happens to turn a jar bottle-bit, PLC unit corresponding to the internal bottle 60-bit unit as M500 ~ M559, cell number with the first letter K is set to K60, with each change in a second letter K is set to K1, M50 reflects bottle empty spaces, lack of position, and detected the location to shift down the frequency of the motor speed, built-in units within the corresponding “1” or “0”, control
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