Automatic filling machine using PID filtering algorithm to remove interference signals, by the S7-300PLC and weighing instrument ICS241 and filling solenoid valve composition, according to different filling range to adjust the weight of the target set value and then complete the filling. Use PLC signal to drive the motor and other transmission agencies to drive the robot to move, while driving the motor comes with the encoder feedback bit (pulse) to the drive driver to compare the two pulses and determine the deviation, according to a certain control law algorithm of the calibration signal as a servo drive in the speed controller is given by the current regulation and power amplification, so that the gripping manipulator towards the elimination of the deviation of the direction of the movement, thus Realize the stacking positioning of the manipulator.

Solution filling machine consists of stepping motor, gear pump, filling head, conveyor belt and electrical control box, the electrical part mainly includes stepping motor drive power supply, positioning solenoid valve, counter, cylinder filling head, conveyor motor and the corresponding control circuit, the filling machine mechanism through the variable speed deceleration to install the E stepping motor output shaft connected to the drive shaft of the ruler wheel pump, the stepping motor can be used as a power source of the filling liquid, and also can be controlled by the operation of the stepping motor, the stepping motor can be used as a power source of the liquid. The stepper motor can be used as the power source for filling liquid, and also can be used to control the number of running steps of the stepper motor to achieve precise control of the number of revolutions of the gear pump so as to realize the purpose of precise measurement.

Automatic filling machine using PLC signals to drive motors and other transmission agencies to drive the robot to move, while driving the motor comes with the encoder feedback bit (pulse) to the driver driver to compare the two kinds of pulses and determine the deviation, according to a certain control law algorithms obtained after the calibration signal as a servo drive in the speed controller is given and then by the current regulation and power amplification, so that the gripping manipulator in the direction of eliminating deviations This enables the gripping robot to move in the direction of eliminating deviation, thus realizing the stacking and positioning of the robot.

Liquid filling machine as a result of the need to output high-speed pulse drive servo motors, all-digital AC permanent magnet synchronous servo drive device, gripping manipulator device as a whole installed in the linear motion transmission components of the sliding skateboard, driven by the transmission components as a whole for the straight-line reciprocating motion, set up to the other work units of the material platform, and then complete the grabbing and put down the function of the filling barrel. Filling, sealing, weighing, stacking and other functions, using sequence control, motion control, communication, data management microprocessor technology and communication technology, filtering of input signals, judgment and storage, etc., the form of output signals transmitted to the actuator of the filling system to complete the filling order, the real-time control of the barrel position of the container on the line, the pre-pressure with pressure control on the filling barrels, the speed of the conveyor chain to regulate the speed. When the container on the conveyor chain is blocked, it is also necessary to coordinate the feeding speed of each drag point of the whole production line. Coordination signal is to other conveyor chain drag in the production line, the control system also empty/full barrels in place, pile of blockage, under the lid, open/close the filling valve for real-time pick up measurement and control.

Filling system in the operation I use each device can use the touch screen for individual operation, or through the network of computer systems for centralized control and monitoring, the operator interface is very intuitive, so that the operation is more simple and efficient. PLC system selection: sodium hydroxide automatic weighing and filling machine system uses SIEMENS production of the S7-300 series of PLCs by a CPU315-2DP module, 2 interface modules, 2 interfaces, and so on. 2DP module, two interface modules IM365, analog input/output module SM335 and analog output module SM332, two high-speed counting module FM350, four digital input module SM321, three digital output module SM322 composed of a double rack hardware configuration structure. The use of Siemens PLC system is because the CPU at the same time integrated an independent MPI and PROFIBUS-DP interface, not only can be easily connected to the man-machine devices, and can be very simple to realize the networking between the equipment and the equipment and the PC, has a powerful network function; in addition Siemens PLCS7-300 system also has a variety of powerful modules can be selected In addition, Siemens PLCS7-300 system also has a variety of powerful modules to choose from, the use of stable. Has a high cost-effective, very suitable for the application of automatic filling machinery. Weighing filling machine filling main motor and its control system: we chose the German SEW company's MOVIDRIVE drive and motor system with encoder feedback, and the current vector control mode, through a wealth of parameter settings to achieve higher control accuracy and dynamic response. Frequency conversion speed control of conveyor system: we adopt Danfoss VLT5000 frequency converter. Because they are international well-known professional production enterprises in the related fields, the products are technologically leading and can run stably for a long time under the harsh production environment.

Operation interface: Siemens touch screen TP170A. The control network adopts Siemens PROFIBUS-DP system, which connects the four main equipments of the whole production line and the engineer's management PC system into a complete PROFIBUS network through PROFIBUS electrical repeater and microprocessor-less CP5611 to realize real-time monitoring and dynamic management of the production line.