The ratio liquid filling machine uses PLC programs and weighing instruments to issue instructions, achieving control of the rotor pump, lifting cylinder, filling gun, and pneumatic valves at the filling site, as well as the collection of various data. Then, the collected data and signals are sent to the weighing instrument, and the command for controlling the valve opening degree sent by the weighing instrument is received. It is processed and output through the corresponding address module, thereby controlling the opening degree of the valve.
020-34563445The ratio liquid Filling machine consists of a business layer composed of the filling Electronic scale, a data transmission layer composed of the Filling system, and a data management layer composed of the back-end server. The filling machine communication module receives the filling records generated by the electronic scale in real time and sends them to the base station. After obtaining the token from the server, the base station polls the filling scales under its jurisdiction within a time slice. If the communication module of the filling scale has data to send, it must wait for the query command from the base station before sending the data; otherwise, it will not respond at all.
The hardware system of the automatic filling machine consists of the base station and the filling electronic scale. The filling electronic scale is responsible for reading the barcode of the filling bucket, processing the filling process and displaying the information, and needs to transmit the filling records to the base station. The data received by the module is sent out through the communication module. The filling machine controls the motor to deliver the material, and the weight of the material in the bucket is collected by the weighing module through A/D conversion. The weighing instrument continuously collects data and calculates the current feeding speed of the bucket based on the time difference. Then, it compares the preset value with the current material weight in the filling scale and calculates the time to continue feeding. The weighing instrument controls the maximum opening of the filling port (high input) at the beginning. When the weight of the product approaches 70% to 80% of the set value (specifically set by the software part of the weighing instrument), the filling port partially contracts (medium input). When it approaches 80% to 95% (specifically set by the software part of the weighing instrument), the feeding port contracts to the minimum feeding port (small feeding). Finally, when the weight of the material in the filling tank plus the weight of the falling material reaches the set value, the feeding port of the reserve bucket is closed, and the weighing process ends.
The automatic filling machine consists of a material storage bin, a lifting filling gun, an electronic scale, a filling system unit, and an air valve unit. The product to be filled is stored in the material storage bin, and the filling bucket is ready. After the control unit receives the start signal, the filling clamp clamps the filling bucket, the lower storage door opens, and the lifting filling gun works. The product begins to quickly enter the filling bucket as the weight increases. As the liquid level rises, the filling bucket starts to fluctuate on the electronic scale. After the first weight signal is sensed by the cylinder lifting sensing switch, it immediately switches the lift through the control unit to the discharge switch, reducing the feeding speed. When the product weight reaches the set weight, the positioning sensing switch works, the filling clamp releases, and the product is discharged and enters the next sealing and inspection unit. The filling process begins for the next cycle when the weight in the filling tank plus the weight of the falling material reaches the set value.
The Liquid filling machine is a cascade control loop with the liquid level controller of the liquid storage bin as the main loop and the control of the material storage bin flow regulation loop as the secondary loop. It controls the feeding speed of the material storage bin based on the liquid level of the liquid storage bin. In the secondary loop cascade control loop, to strictly control the material storage bin and the maximum amount, a double closed-loop ratio control is adopted, with the material storage bin flow as the main loop and the quantitative addition amount and the added amount as the secondary loop. Under the maximum normal addition amount, the target amount is controlled according to the preset relationship with the material storage bin capacity and the weighing instrument. When the maximum addition amount changes, the weighing instrument changes the output of the controller and controls the switch of the flow control valve to change the liquid addition amount.
The liquid filling machine uses PLC programs and weighing instruments to control the rotor pump, lifting cylinder, filling gun, and pneumatic valves at the filling site, as well as to collect various data. Then, it sends the collected data and signals to the weighing instrument, receives the command for the opening degree of the control valve sent by the weighing instrument, processes it through the corresponding address module, and outputs it to control the opening degree of the valve. Through the ratio control program, the function of proportionally feeding the material into the bucket can be realized. The material flow signal from the weighing module is converted and sent to the target weight module of the weighing instrument program, and this value is amplified or reduced by two different instructions to be used as the target value and the quantitative setting value for ratio control.
