One-stop service system from process design to equipment manufacturing, installation and commissioning

Time of release：

2022-05-09

The structure of the extruder barrel feeding hopper mainly includes ordinary hopper, forced feeding hopper and vibrating feeding hopper. The ordinary hopper with simple structure and low cost is mainly used for feeding the feeding barrel of small extruder. The feeding method depends on the weight of the particles and can freely fall into the barrel. The forced hopper feeding is mainly used in large extruders. After the screw is decelerated by the worm and worm gear, it is driven by the motor to rotate. Because when the screw of the extruder rotates, the pressure exerted by the upper spring on the screw presses the raw material into the barrel. When the barrel is full, the back pressure of the pressed material pushes the screw upward and stops feeding the barrel. When there is no raw material in the barrel, the spiral is pressed down by the spring force and continues to rotate to supply the barrel. This forced feeding method avoids the bridging phenomenon of the raw material in the hopper and can ensure the continuous feeding of the hopper.