Cylinder scales for liquefied petroleum gas enterprises to design and manufacture a set of fully automated multi-species mixing dosage weighing of three integrated production lines. The dynamic weighing scale, through the CC-Link fieldbus, together with PLC, HMI/IPC seamlessly form a three-in-one metering and dosage system, in which the industrial computer is connected to the factory ERP/MIS through HUB and Ethernet TCP/IP. The whole dosage process is carried out in strict accordance with the selected recipe ratio and flow, and has multi-level alarm records, completes the mixing of different raw materials to feed and logistic control, realizes the integration of management and control, and optimizes the performance and efficiency of process control. The integration of management and control optimizes the performance and efficiency of process control.

The filling machine monitors and controls various filling equipments of the whole production line, with automatic bottle spotting function, which is easy to check the filling quantity at any time. With pause and forced stop function, it is convenient for emergency treatment in any situation. Made with PLC programmable controller, sealing systems are all made of PTFE, with two-stage automatic filling method for large and small materials.

Quantitative filling machine consists of cylinder actuator and weighing module, which is used to monitor the assembly line filling device and related data management to ensure that the equipment to complete the expected operation, and its main function is to achieve accurate measurement of the product material, and the equipment consisting of heating mechanism, automatic capping mechanism, transmission mechanism and other units to complete the work of the product packaging, coding printing, and transportation of finished products.

Automatic filling machine to realize the instrumentation and PLC and the host computer communication connection, real-time processing and the corresponding components of the formula for comparison of the settings. The use of RS485 bus type to realize the connection with the filling machine port, in order to achieve the instrumentation and PLC and the host computer running state is consistent, read through the interface stored in the filling machine touch screen, easy to fill management and query.

Quantitative filling machine using photoelectric imaging system to collect the image of the controlled target, by computer or special image processing module for digital processing, filling head down control motor to reach the weight to stop, the weight reaches the issued signal, the solenoid valve stops moving, the filling valve filling is complete, the filling nozzle rises, to complete the filling process.

The main use of quantitative filling machine servo motor to realize the rotor pump stroke control, and then realize the filling volume control. Before filling, the front weighing module obtains the weight of empty barrel, after filling, the rear weighing module obtains the weight of filling and transmits it to the weighing instrument, which will read out the filling data in real time to get the weight deviation, and the filling algorithm calculates the control volume of large materials, the weighing system will send the control volume to the servo drive, which will drive the quadratic rotor pump to perform the early closure of the small material volume and then control the filling valve of the small material, and the upper computer will read out the filling data in real time through the Ethernet connection with the weighing instrument. The upper computer is connected to the weighing instrument via Ethernet to read the filling data in real time, and the process parameters can be set to monitor the operation of the production line.

Quantitative filling machine according to the stepper motor at a pre-set speed through the screw drive filling valve rise: when the filling requirements are reached filling off, filling valve reaches the upper limit position travel switch stops and sends a signal. This data is compared with the host's rapid collection, real-time processing and the settings of the corresponding components in the recipe. If these two are the same, the host sends a control signal to stop the filling.

Automatic filling machine using computers to achieve the human visual function, the machine instead of the human eye to do the measurement and judgment, the use of photoelectric imaging system to collect the image of the controlled target, by the computer or special image processing module for digital processing, according to the image of the pixel distribution, brightness and color information, such as size, shape, color and other identification. This organically combines the rapidity and repeatability of the computer with the high degree of intelligence and abstraction of the human eye's vision, which greatly improves the flexibility and automation of the production process inspection, saves a lot of manpower, improves inspection efficiency and ensures product quality.

Quantitative filling machine can adjust the size of the filling volume by changing the rotational speed of the frequency converter gear, through the filling valve to the filling container dispensing liquid, control the switch on and off of the solenoid valve, drive the implementation of the lever drive to make the conical spool in the filling valve open or close, realize the liquid circuit intermittent opening and closing, showing the whole filling control process. Also can be achieved by controlling the number of running steps of the stepper motor to accurately control the number of revolutions of the gear pump so as to achieve the purpose of accurate measurement.