The invention relates to the technical field of plastic pelletizers, and discloses an
assembly for preventing the abnormal
diameter of plasticized particles for
pelletizing of a plastic pelletizer, the
assembly comprises a retaining mechanism, the center of the interior of the retaining mechanism is rotatably connected with a
pelletizing shaft, the outer side of the
pelletizing shaft is fixedly connected with a
synchronizing mechanism, and the outer side of the
synchronizing mechanism is fixedly connected with an external connecting sleeve; and the middle part of the external sleeve is fixedly connected with a bolt mounting block. According to the
assembly for avoiding the abnormal
diameter of the plasticized particles for pelletizing of the plastic pelletizer, a semicircular head is pushed by a threaded table to move towards the outer side, so that a wire in a hard ball is powered on, an electrorheological body in the hard ball is hardened and expanded, and then the hard ball drives an inclined plug and a driving rod to move towards the outer side; and then the driving rod drives the rubber block to move outwards, so that the rubber block is in contact with the inner wall of the
extrusion mechanism, the rotating speed of the
granulation shaft is limited, the rotating speed of the
granulation shaft is more stable, and the
diameter of granulated particles is more uniform.