The variable frequency control of the weighing and Filling machine is a power control equipment that applies variable frequency technology and microelectronics technology to control the AC motor by changing the frequency mode of the motor's working power supply. Design and implement multi-stage speed regulation by utilizing the functions of variable frequency control. The actual speed of the motor is detected by a photoelectric switch and an internal timer, and this speed is used as a feedback signal to control the motor speed, thereby achieving automatic control of the filling conveyor belt speed. The purpose of automatic control is to make it consistent with the speed of the filling machine, saving filling time. The Liquid filling machine adjusts the speed of the conveyor belt through variable frequency control based on the barrel flow, and selects multi-stage speed control according to the barrel flow situation to achieve a good match between the conveyor belt speed and the weighing filling machine speed. The filling frequency conversion control motor drives the rotor drive, and then transfers the buckets to be filled to the weighing and filling machine, achieving coordination between bucket flow speed and filling speed, thereby improving work efficiency. After starting the weighing and filling machine, press the forward rotation switch of the motor, and the motor starts to rotate, driving the rotor to drive. The buckets to be filled pass through the photoelectric sensor under the drive of the rotor pump, and the weighing scale counts the buckets and sends them to the filling machine for data processing. The processed bucket flow speed is compared with the value set in the memory, and the control signal is output to the multi-stage speed control terminal of the filling machine's variable frequency control. After receiving the control signal transmitted, the variable frequency control internally processes it and outputs a specific frequency voltage to achieve variable frequency speed control of the motor for the metering and filling machine.

The automatic filling machine includes a conveying mechanism, a hopper, a filling nozzle mechanism, and a clamping mechanism. The upper part of the frame is equipped with a driving system that includes a filling motor, a clutch, and a transmission shaft. The driving system is connected to the conveying mechanism, and the part of the conveying mechanism that passes through the hopper is equipped with a winch. The upper and lower parts of the other side of the frame are respectively equipped with a filling mechanism and a clamping mechanism. The lower part of the clamping mechanism is equipped with a lifting platform. The upper part of the nozzle mechanism is equipped with a cylinder, and the lower part of the cylinder is threaded with the cylinder joint. The cylinder joint is embedded in the connecting block, which is connected to the valve core through positioning bolts. The lower part of the valve core is equipped with a nozzle, and the nozzle can be configured with multiple filling heads with independent transmission systems. When the cylinder moves, it can drive the valve core to reciprocate back and forth in the cavity formed by the cylinder seat and nozzle. The clamping mechanism is equipped with vertical and horizontal cylinders for vertical lifting and horizontal tightening respectively. The horizontal cylinder is connected to the guide rail. The upper part of the vertical cylinder is equipped with a lifting seat plate, and the lifting guide rods are set at equal distances on both sides of the vertical cylinder. A pair of reinforcing clamps are symmetrically installed on both sides of the conveyor line.

The whole machine of the quantitative filling machine is equipped with a command system controlled by a computer integrated circuit program, as well as a turntable intermittent operation mechanism. The filling mechanism is equipped with a central cylinder, a cylinder filling piston valve, and a liquid storage solvent. The pipeline upright is equipped with a filling piston valve, and the inlet of the filling piston valve is connected to the outlet of the liquid storage container through a pipe. A pressure head with a pressure spring is installed on the filling piston valve, which is installed in a positioning sleeve with a reset spring. When the filling machine is working, under the monitoring of photoelectric and computer, the intermittent operation mechanism of the turntable installed at the bottom of the filling piston valve mechanism is driven by the motor to send the soft filled infusion container to the filling piston valve through the gearbox. When the photoelectric is aligned with the opening of the filling infusion container, the computer control program opens the storage tank valve, and the liquid enters the filling piston valve. The cylinder works, and the piston rod drives the filling piston valve downwards. The pressure spring of the pressure head in the positioning sleeve presses the infusion container pipe mouth, and the filling is completed. Due to the setting of the target amount, there is a delay of 2 seconds. The piston rod carries the filling piston valve upwards, and the pressure head is reset under the action of the reset spring. At this time, the turntable runs into the next process. This cycle can smoothly complete the filling infusion container. Filling of liquids.

Technical Specifications

Weight range: 15-50kg

Material interface: DN40 material

Import pressure: ＜ 0.5MPa

Filling speed: 1-2 barrels (200L) per minute (with a diameter of 1.5 inches and a material flow rate of 280L/min)

Filling accuracy: 0.2 level

Spray gun structure: The material in contact with the material is 316 or 316L stainless steel, while the rest of the material is 304 stainless steel, carbon steel, etc

Gas source used: pressure 0.5 ± 0.1Mpa, consumption 10m3/h, quick connector 8mm air pipe

Power supply: 220 (-15%~+10%) VAC, 50Hz