Common faults of filling and capping machine and their solutions
(1) Sudden shutdown during operation:

a. When there is no cover or missing cover on the falling cover track, when the photoelectric switch detects no cover or lack of cover, the coverless indicator light flashes, the buzzer sounds five times, and the host stops running immediately. Check the reason for the absence of a cover or cover on the landing rail and eliminate the fault in time.

b. When the machine is running automatically, the self-locking system will start when the bottle is encountered, and the host will stop running immediately. The card bottle indicator flashes, the card bottle icon pops up on the touch screen, and the card bottle position is displayed from left to right, respectively, card bottle 1... card bottle 5 micro switch S4...S8, buzzer alarm five sound. At this point, the host will not run even if you press the host button again. The solution is to power off after a minute, then press the emergency stop button and reset. In the case of multiple card bottles, first check if there is a mechanical failure, and then check if the card bottle micro switch is faulty. Finally check if the bottle meets the specifications and reject the unqualified bottle.

c. The main engine and the inlet pump inverters HV1 and HV2 are overloaded, the alarm lights on HV1 and HV2 are on, the buzzer HA1, and the alarm five sounds. The solution is to turn off the RET and SD terminals on the inverter for more than 0.1 second after power-off for 1 minute, then disconnect and reset. In case of thermal relay FR1...FR4 overload, power off for more than 1 minute, then press the reset button on the thermal relay. If it is still overloaded frequently, please increase the setting current value on the thermal relay by 10%. If it is overloaded again, please check if the motor is out of phase or other faults.

(2) The liquid level is unstable, and the filling volume in common bottles is not enough.

a. O-ring seal in the filling valve (GB34521-82 specification 21.2×3.55O type seal is made of neoprene and oil resistant rubber with poor heat resistance). Leakage occurs after wear, resulting in liquid level setting.
The position is not accurate and the final filling volume is not enough. * Use O-rings made of silicon (fluorine) rubber with better heat resistance and wear resistance, which not only reduces the number and time of shutdown maintenance, but also improves machine production efficiency. In addition, the feeding high-pressure hose protected by the stainless steel wire braided tube on the filling machine has poor toughness of the stainless steel material selected for the sealing buckle, and the residual stress is excessive after the sealing buckle is pressed, resulting in micro-cracking of the sealing buckle, resulting in high-pressure soft The tube is broken at the seal head and leaks. The solution is that the sealing buckle will be slightly cracked, but the feeding high-pressure hose seal has not been damaged and the leakage high-pressure hose is removed from the filling machine, and the sealing buckle is cooled with a damp cloth, and then sealed by argon arc welding. The micro-cracks at the buckle are welded firmly, and the heat dissipation should be good when welding, so as to avoid the high-pressure hose being burned and perforated. If the feed high pressure hose seal head seal is broken, replace the new high pressure hose in time. The filling valve stainless steel return spring is deformed, the reset is invalid, and it cannot be fully contacted with the bottle mouth and tightly sealed. To do this, adjust the spring to increase its preload pressure, and if it does not work, replace it in time.

b. The height of the filling valve is improperly adjusted, that is, the height of the filling valve is too high, causing material leakage during filling. The solution is to properly adjust the height of the filling valve to make it highly suitable.

c. Insufficient supply. The solution is to rotate the inlet pump speed potentiometer RP1 clockwise to accelerate the speed of the inlet pump. When adjusting, fill the bottle with the bottle to minimize the amount of liquid return.

(3) Material overflow during filling, which not only causes waste of materials, but also increases the chance of bottle contamination.

a. After long-term operation, the gasket made of polyurethane on the filling valve is damaged by frictional collision. The solution is to replace the filling valve gasket in time.

b. Due to improper adjustment of the filling valve height, that is, the filling valve height is too low, the damage of the filling valve gasket will be accelerated. The solution is to properly raise the filling valve to make it highly suitable.