Analysis and countermeasures of common failures of bulking machine
The bulking machine is an important process equipment in the press workshop. Due to its high temperature and high pressure operation, it has high requirements for the safe operation of the workshop operators. If the equipment malfunctions due to operating reasons or external factors, it must be correctly analyzed, effectively dealt with, and the malfunctions must be eliminated in the shortest time to ensure the safety and stability of the workshop.
1. Reasons for spraying of bulking machine
1) The extractor stops the chain shutdown of the feeding workshop;
2) The feeding port of the bulking machine feeding auger is not smooth;
3) The direct steam of the bulking machine is too large;
4) The feed of the bulking machine decreases instantly;
5) The high material level alarm of the countercurrent dryer will stop the feed auger chain of the bulking machine;
Approach:
1) The direct steam valve of the bulking machine must be closed on the computer or on-site to exit the cone die.
2) Analyze the cause of the spray material and deal with it;
3) Eliminate the cause of the failure and clean up the accumulation of material at the outlet of the feeding auger (when cleaning the auger, the main motor of the bulking machine and the feeding auger must be powered off and locked; pay attention to the scalds caused by the reverse steam.
4) Unlock the power transmission bulking machine and start production.
2. Slippage of the bulking machine belt
1) The driving belt of the bulking machine is too loose, causing slipping;
2) bulking machine load is too large (large feed volume, small steam supply volume, poor discharge of cone die, etc.)
Approach:
1) If the slippage is caused by the loose belt, stop the bulking machine, lock the motor breakpoint and contact the machine repairer to tighten the belt.
2) If the load is too large and the belt slips severely, first exit the cone die, close the steam valve, and reduce the feed volume of the bulking machine.When the current of the bulking machine is reduced to the normal current, adjust the feed volume and steam volume to enter the mold production. When entering the mold, pay attention to the change of the motor current of the bulking machine, and slowly increase the feed volume and steam volume after the mold enters normally. The bulking machine is in full production. If the belt slips slightly, adjust the amount of steam or feed. Generally adjust the amount of steam.
3. Power failure and overload of the bulking machine
1) When the bulking machine itself is powered off, the direct steam valve of the bulking machine should be closed, and the cone die head should be retracted while the indirect steam heating steam of the bulking machine cylinder barrel is opened to keep the material in the bulking machine and the chamber warm.
To prevent the materials from sticking together after cooling down to block the bulking machine and cause difficulty in starting the machine, start the bulking machine after power is supplied. If the bulking machine cannot be started within half an hour, the machine must be turned to discharge the material in the chamber.
2) When all the workshops are powered off, open the bypass of the pneumatic valve for steam supply of the bulking machine in time, close the direct steam valve of the bulking machine, and open the indirect steam valve of the bulking machine cylinder to keep the material in the bulking machine and the chamber warm, and process it after the power is received.
1. Reasons for spraying of bulking machine
1) The extractor stops the chain shutdown of the feeding workshop;
2) The feeding port of the bulking machine feeding auger is not smooth;
3) The direct steam of the bulking machine is too large;
4) The feed of the bulking machine decreases instantly;
5) The high material level alarm of the countercurrent dryer will stop the feed auger chain of the bulking machine;
Approach:
1) The direct steam valve of the bulking machine must be closed on the computer or on-site to exit the cone die.
2) Analyze the cause of the spray material and deal with it;
3) Eliminate the cause of the failure and clean up the accumulation of material at the outlet of the feeding auger (when cleaning the auger, the main motor of the bulking machine and the feeding auger must be powered off and locked; pay attention to the scalds caused by the reverse steam.
4) Unlock the power transmission bulking machine and start production.
2. Slippage of the bulking machine belt
1) The driving belt of the bulking machine is too loose, causing slipping;
2) bulking machine load is too large (large feed volume, small steam supply volume, poor discharge of cone die, etc.)
Approach:
1) If the slippage is caused by the loose belt, stop the bulking machine, lock the motor breakpoint and contact the machine repairer to tighten the belt.
2) If the load is too large and the belt slips severely, first exit the cone die, close the steam valve, and reduce the feed volume of the bulking machine.When the current of the bulking machine is reduced to the normal current, adjust the feed volume and steam volume to enter the mold production. When entering the mold, pay attention to the change of the motor current of the bulking machine, and slowly increase the feed volume and steam volume after the mold enters normally. The bulking machine is in full production. If the belt slips slightly, adjust the amount of steam or feed. Generally adjust the amount of steam.
3. Power failure and overload of the bulking machine
1) When the bulking machine itself is powered off, the direct steam valve of the bulking machine should be closed, and the cone die head should be retracted while the indirect steam heating steam of the bulking machine cylinder barrel is opened to keep the material in the bulking machine and the chamber warm.
To prevent the materials from sticking together after cooling down to block the bulking machine and cause difficulty in starting the machine, start the bulking machine after power is supplied. If the bulking machine cannot be started within half an hour, the machine must be turned to discharge the material in the chamber.
2) When all the workshops are powered off, open the bypass of the pneumatic valve for steam supply of the bulking machine in time, close the direct steam valve of the bulking machine, and open the indirect steam valve of the bulking machine cylinder to keep the material in the bulking machine and the chamber warm, and process it after the power is received.
