Details of twin-screw extruder accessories failure analysis
1. Click to start ① the power supply is not turned on or the fuse is blown; ② The working circuit is disconnected or the connector is loose; ③ The control knob of the servo motor is not adjusted back to the zero position; ④ The oil pump motor does not start; ⑤ Driving program error.
2. The working current of the main motor is unstable or too large ① The feed of the material barrel is uneven, and the material quantity fluctuates from large to small; ② The constant temperature heating time of the machine is short, and the plasticizing temperature of the material is low; ③ The heating temperature of the barrel is unstable and the temperature fluctuates greatly; ④ The main motor bearing is severely worn.
3. The temperature of the main motor bearing is high. ① The rotor bearing is lack of lubricating oil, causing conflicts. The rotor bearing is damaged or severely worn.
4. The main motor works and the screw does not rotate ① The safety pin in the transmission system is damaged; ② The barrel heating time is short, and the internal temperature of the machine is low; ③ The belt is seriously worn and the automatic wheel is idling; ④ There is metal foreign matter in the material in the barrel, which blocks the screw and cannot roll; ⑤ The transmission gear teeth are damaged.
5. The operation speed of twin-screw extruder accessories is unstable. ① The wheel base of the V-belt is too small, the V-belt device is too loose, and it slips during operation; ② There is a problem with the speed control equipment of the motor and the control fails; ③ The heating temperature of the barrel is unstable and the temperature fluctuates greatly; The material in the barrel has been plasticized.
6. The operation speed of the twin screw extruder accessories is stable, but the extrusion material is unstable. ① The material in the hopper is "bridged" and the feeding of the material barrel is discontinuous; ② The sundries at the manifold are blocked and the extrusion melt flow is unstable; ③ The screw feed part is lack of cooling, and the material temperature is high, which sticks to the thread surface and rolls with the screw, making the barrel unable to feed; ④ The heating temperature of the barrel is unstable, and the material temperature rises and falls, which affects the stability of the melt activity.
7. The manufacturer of twin-screw extruder explained that the rolling noise of twin-screw extruder accessories was abnormal ① the screw was deformed and collided with the machine; ② There are metal foreign matters in the plasticizing material of the barrel screw; ③ The temperature of plasticizing material is low, and the screw bears large torque and overload; ④ The connecting bolts between the casing and the base are stretched and deformed, and the barrel seems to be misaligned during operation. ⑤ The manifold is deformed or has too many impurities and is blocked.
8. The humidity fluctuation of the barrel is very large and difficult to control. ① The thermocouple and the temperature measuring part are in poor contact; ② The electric heating aluminum sleeve and the cylinder are not fully contacted and there is a gap; ③ The resistance wire of the electric heater is not firmly connected; ④ Temperature control surface operation failed.
Our company is mainly engaged in twin screw extruder, single screw extruder, dryer, roast oven, fryer, flavoring line, pet food production line, fish feed processing line, puff snacks/core filled snacks production line, artificial rice production line, fortified rice machine, corn flakes production line, breakfast cereal production line, bread crumb production line, nutritional powder/ baby food production line, corn chips/bugles production line, TVP/TSP/Meat Analogue production line, Soya protein processing line, vegetarian meat production line, 2D/3D pellet chips production line, modified starch/ pregelatinized starch production line, kurkure/ cheetos production line, rice crackers/ biscuit production line, instant noodles production line. Tortilla corn chips production line, which are professional and reliable. Welcome to visit the factory.
