Installation method of injection screw barrel
Por Cathy Lin
September 30th, 2024
vistas 8
The installation method of injection screw barrel mainly includes the following steps :
Preparation : before installation, ensure that the mold has been removed, and the injection molding device back until it cannot move. Empty the raw materials in the barrel, and keep the temperature of the barrel, the temperature of the front barrel can be appropriately increased to facilitate the removal of the front barrel screws. Prepare 4 or 5 wooden or steel rods (diameter less than the diameter of the screw and length less than the injection stroke) for ejecting the screw .
Installing the screw and barrel : Install the screw and barrel by following the reverse steps of removal. First, put the screw tail into the material tube, clean the two contact surfaces of the flange and the material tube, and then install the flange and fix the screw. Make sure the threads are coated with heat resistant grease .
Connect the reducer to the motor : connect the connecting sleeve of the reducer and the screw keyway, and grease to prevent rust. Connect all parts of the reducer and barrel to ensure correct installation and connection. Next, install the heater and wiring to ensure that all parts are properly installed and connected .
trial and commissioning : After the installation is complete, the temperature test machine is carried out to check the operation of each component. When inspecting and servicing the extrusion motor, the grease of the reducer can be replaced. After all the components are in normal operation, we can start the formal production .
Precautions :
During installation, make sure to use quality bolts with a strength class of 12.9 and evenly apply heat-resistant grease (such as MoS2, etc.) to the threaded surface of the bolts.
Tighten the diagonal bolts evenly, using the appropriate torque, preferably using the torque plate hand.
If the bolt of the heating barrel head is tightened too tightly, it may cause thread damage; If too loose, it may leak .
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