The control system of the liquid weighing Filling machine sends the empty bucket to the filling position, aligns the bucket mouth with the spray gun mouth, presses the "start" button of the Liquid filling machine, and the spray gun enters the bucket under the drive of the cylinder. After the detection spray gun is in place, the bottom valve opens and the nitrogen filling valve starts to fill dry nitrogen gas into the barrel through the filling port, replacing the air inside the barrel with nitrogen gas and accelerating the drying of the barrel wall to ensure filling safety. When filling the nitrogen in the filling machine, it should be ensured that the air in the container is completely replaced, and the specific nitrogen filling amount can be adjusted by the control instrument time. After filling a certain amount of nitrogen, the nitrogen filling valve is closed, and the control instrument automatically removes the tare weight from the empty bucket on the scale. Then, the fast and slow feeding ball valves are opened simultaneously; First, quickly add the material. The spray gun stays at the lowest position for a period of time before starting to rise and fill below the liquid level. In the middle, as the liquid level rises, it stays at 3 places and stops at the barrel mouth before slowly adding the material; When the filling volume of the weighing filling machine reaches the preset advance amount, the ball valve and bottom valve are closed; Raise the spray gun outside the barrel; Start the vacuum suction device to ensure there is no residual liquid leakage. All sealing points of the entire pipeline are sealed with polytetrafluoroethylene material to meet the requirement of no leakage. After the feeding and filling of the measuring filling machine is completed, the full barrel is manually pushed to the actual barrel roller conveyor, and the lid is manually and pneumatically screwed; Push the fully capped bucket to the unloading buffer position; Transport the packaged barrels away by forklift. After each filling shift, place a material bucket under the filling head, close the manual material feeding valve, perform a filling process, release the material, and turn off the machine. The reaction kettle returns to the initial state of the equipment, and the entire process ends. The weighing and filling machine uses a cylinder to drive a piston to extract and dispense materials. The material flow is controlled by a one-way valve, and the cylinder stroke is controlled by a magnetic spring switch to adjust the filling accuracy up to 0.5%. Using pneumatic components from FESTO in Germany, AirTac in Taiwan, and electronic control components from Delta in Taiwan, the performance is stable, and the material contact parts are made of 316L stainless steel material.

The automatic filling machine is equipped with two independent filling mechanisms on the rack, including a storage hopper and a discharge mechanism. A turntable driven by a driving motor is set below the storage hopper, and there are several through holes corresponding to the discharge end of the storage hopper on the turntable. A storage measuring cylinder is set below the turntable and at the corresponding position of the through holes. A fixed bottom plate is set below the storage measuring cylinder, and a discharge port corresponding to the storage measuring cylinder is set on the fixed bottom plate. A discharge mechanism is set above the turntable and at the corresponding position of the discharge port. The discharge ports of the two filling mechanisms are on the same horizontal line. The automatic filling machine is equipped with a pressure plate on the upper end face of the turntable, which is connected to the adjustment handwheel set on the bracket. The pressure plate is respectively provided with holes corresponding to the through holes on the turntable and the discharge ports on the fixed bottom plate. The holes on the pressure plate correspond to the discharge end of the storage hopper, and the upper end face of the pressure plate is closely attached to the lower end face of the storage hopper. The automatic quantitative filling machine is equipped with a card sleeve connected to the turntable through a quick disassembly mechanism on the lower end face of the turntable. The storage measuring cylinder is connected to the card sleeve. The quick disassembly mechanism includes at least two positioning screws below the turntable and around the through-hole, as well as a quick clamping groove on the card sleeve that corresponds to the positioning screws. The quick clamping groove is composed of a positioning hole and a clamping groove. The positioning hole matches the positioning screw, and the aperture of the clamping groove is smaller than that of the positioning hole. The clamping groove extends from the end connected to the positioning hole in the opposite direction to the rotation of the card sleeve. The positioning head of the positioning screw of the automatic liquid filling machine has a certain gap with the lower end face of the turntable. The chuck of the card sleeve is matched with the gap, and the quick clamping groove is set on the chuck: the positioning screws are evenly distributed around the axis of the corresponding through-hole and on the same circumference. The automatic weighing and filling machine has a discharge mechanism that includes a discharge drive motor set on the frame and a discharge screw connected to the power output end of the discharge drive motor. The lower part of the discharge screw is placed in the storage hopper.

The discharge screw of the automatic metering filling machine includes a transmission shaft, a spiral shaft, and a fixed sleeve. The upper end of the transmission shaft is connected to the power output end of the discharge drive motor, and the lower end is detachably clamped with the upper end of the spiral shaft. The spiral shaft is a spiral shape that gradually decreases from top to bottom and matches the shape of the storage hopper. The fixed sleeve is connected to the connection between the transmission shaft and the spiral shaft. A clamping protrusion is provided at the lower part of the transmission shaft, and a clamping groove that matches the clamping protrusion is provided on the fixed sleeve. The lower end of the transmission shaft and the upper end of the screw shaft of the automatic weighing and filling machine are semi cylindrical structures that cooperate with each other. A positioning protrusion is provided on the semi cylindrical structure at the lower end of the transmission shaft, and a positioning through-hole that matches the positioning protrusion is provided on the semi cylindrical structure at the upper end of the screw shaft; The card slot is shaped like a J, with its starting end extending downward from the upper end of the fixed sleeve and its end placed on the fixed sleeve. The feeding mechanism of the filling machine includes a feeding cylinder and a feeding head connected to the piston rod of the feeding cylinder. The feeding mechanisms of the two groups of filling mechanisms operate synchronously on the same horizontal line under the control of the control mechanism. The dual head filling machine is equipped with a stirring rod in the storage hopper, and the upper end of the stirring rod is connected to the stirring drive motor set on the frame through a chain drive. The two sets of filling mechanisms of the filling machine are integrated on one frame, and overflow ports are set on the fixed bottom plate corresponding to each set of filling mechanisms. The Filling system integrates two sets of filling mechanisms together, so that their discharge ports are on the same horizontal line, thus cooperating with the existing fully automatic barrel filling machine to form a continuous fully automated production line mode. Compared with the existing semi-automatic filling method, it greatly improves production efficiency and reduces labor intensity; Moreover, in the specific filling process, the existing problems of material leakage, inaccurate and non adjustable filling volume have been solved.

Basic Parameters

Weighing range: 10-300kg

Material interface: DN40 material

Import pressure: ＜ 0.6MPa

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

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: pressure 0.5 ± 0.1Mpa, consumption 10m3/h, quick connector 8mm

Tracheal power supply: 220 (-15%~+10%) VAC, 50Hz easy to operate, automatic filling scale easy to install, spray gun lifting rate control, bucket collision protection