Automatic packing scales achieve packaging accuracy and stability by filling the material into the packaging container and using weighing equipment to accurately weigh the material. Each filling valve corresponds to a dynamic electronic scale, the bottle is placed on the electronic scale, when the weight on the scale reaches the set value, the valve is closed, so as to achieve the purpose of quantification.
020-34563445Liquid Filling machine using computer control, to achieve intelligent, machine, electricity, gas, light, magnetic as one, the use of elliptical gear control PLC to achieve metering control timing and counting functions, operation data shift, comparison and other operational functions; More complex operation functions include algebraic operation, data transfer, etc. It has the function of communication, communication with the next machine, communication with the same machine or the upper computer, and data communication with the factory or enterprise network. According to the control requirements, PID control operation, feedforward compensation control operation, ratio control operation, etc., is mainly used for sequential logic control, using single loop or multi-loop controller to solve the analog control, using a dedicated intelligent input and output unit to complete the required control functions, improve the processing speed of programmable logic controller and save memory capacity.
When the machine is started on the filling production line, the conveyor belt moves the barrel forward and moves to the lower end of the photoelectric sensor, the sensor automatically counts. There is a iron bar at the front of the barrel to stop all the barrels, when the photoelectric sensor counts to 4, the sensor transmits a signal to the PLC at this time, the PLC controls the rear interceptor rod, the rear interceptor rod intercepts the fifth barrel. After a delay of 2S, the conveyor belt stops working. PLC transmits signals to the solenoid valve on the cylinder, the solenoid valve is opened, the air pump is charged to the cylinder, the nozzle is pressed to the mouth of the barrel, the stroke switch is played to the other side, the signal is transmitted to the PLC, the PLC transmits signals to the solenoid valve on the nozzle, the solenoid valve is opened, the elliptical gear begins to calculate the flow through the weighing module, and the nozzle is filled with liquid. Fill until the target value is reached, then the target weight transmits the signal to the PLC, the PLC shuts off the solenoid valve, and the nozzle stops filling the liquid. After the PLC transmits the signal to the cylinder solenoid valve, the nozzle is lifted up the top, and the stroke switch is reset. Then PLC controls the main motor to drive the conveyor belt. The first iron is withdrawn, and the interceptor rod is not withdrawn, so that the first four barrels continue to pass, and the fifth barrel does not pass. After a delay of 4S, the front interceptor rod is extended, and then the interceptor rod rod is withdrawn, the photoelectric sensor continues to count, and the fifth barrel continues to be transmitted to the first iron rod, and then the cycle repeats.
