NANJING LESUN SCREW CO.,LTD

Extruder Screw Arrangement Requirements and Barrel Noise Analysis

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    Ⅰ. The extruder screw arrangement requirements


    The screw arrangement of the extruder must be determined according to the displacement of the extruder. Different specifications of the extruder have different requirements.


    1. The left and right directions cannot be reversed;


    2. The commissioning of the center is correct;


    3. Ensure the plasticizing effect according to the product adjustment gap;


    4. It must be concentric with the distribution box.


    Ⅱ. The noise analysis of the barrel of the extruder screw


    During the extrusion process, the extruder screw will make a sound when it rubs against the inner wall of the barrel. The reasons for this friction phenomenon are nothing more than the following four:


    1. The assembly gap between the extruder screw and its supporting drive shaft is too large, and the two shaft centers are not concentric when rotating, and the error is too large.


    2. The extruder screw is bent and deformed, and the straightness of the center line of the shaft is out of tolerance.


    3. The end face of the extruder barrel and the flange end face of the base are connected, and the perpendicularity to the center line of the barrel cannot be guaranteed, and the error is large.


    4. The extruder screw is assembled in the extruder barrel, and the error of the concentricity of the two parts is large.


    Our company specializes in the production of parallel and co-rotating modular screw element, barrels and screws, covering various models from Ø20mm to Ø300mm. After ten years of vigorous development, our company now has a number of advanced CNC machine tools and special processing equipment for screw manufacturing. Now our machining operations have basically realized intelligence and automation. Advanced processing methods, strong technical force, and sophisticated processing technology have ensured that the quality and technical indicators of various productions fully satisfy customers. If necessary, please consult.

    References
    • Heating and Cooling of the Extruder Screw Barrel

      Heating and Cooling of the Extruder Screw Barrel

      June 8, 20211. Heating method of the screw and barrel of extruderThe heating of the machine adopts the way of resistance heating, and thermocouples are used for segmented temperature control and side detection. R...view
    • Cleaning Methods of Extruder Barrel

      Cleaning Methods of Extruder Barrel

      January 15, 2021The extruder should be cleaned regularly after being used for a period of time. Because a long time of using,a lot of stains will be generated inside the barrel. If these stains accumulate for a long time...view
    • The Basic Structure and Application Characteristics of the Extruder Screw

      The Basic Structure and Application Characteristics of the Extruder Screw

      November 24, 20211. The conventional full-thread extruder screw can be divided into three forms:(1) Equidistant variable-depth screwAccording to the speed of the change of the groove depth, the equal-distance variable...view
    • How to Effectively Strengthen the Screw?

      How to Effectively Strengthen the Screw?

      November 24, 20211. Clean up the appearance of the extruder screwBefore screw spray welding, the remaining plastic attachments on the surface of the extruder screw should be removed. The method of removal is to rotate...view
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