When plastic products factories use plastic extruders to extrude products, they often encounter abnormal phenomena of extruder equipment, in which sometimes we find that the extruder sometimes makes a "squeak" sound. As a manufacturer with experience in the production of extruders and extruder production lines, Qingdao humans Plastic Machinery Co., Ltd. has a lot of production experience in this situation. In fact, this abnormal phenomenon is mainly caused by the noise produced by the friction between the extruder screw and the inner wall of the barrel.

We sorted out some reasons, mainly including:

1. When the extruder equipment leaves the factory or is assembled at the customer's factory, the screw is installed in the barrel for operation, and the concentric error of the barrel and screw is large;

2. During on-site installation, the vertical difference between the end face of the barrel and the end face of the connecting flange of the barrel and the center line of the barrel is large;

3. After long-term use of the extruder equipment, the screw is bent and deformed, resulting in a large error in the straightness of the screw shaft;

4. The assembly gap between the screw and its supporting transmission shaft is too large, and the coaxiality error of the two-axis lines is too large when rotating.

In this case, we need to shut down the equipment for maintenance first, measure the concentricity of the screw and barrel of the equipment, and reinstall them to meet the standard. If the standard cannot be achieved, you may need to find a manufacturer to re-purchase new screws for maintenance.

The above is some relevant information prepared by the editor for you about why the extruder makes a "squeak" sound when extruding products. If you have more needs, you are welcome to come to the factory for an on-site inspection or call for details. We will provide you with professional technical guidance and equipment procurement suggestions.