The clutch is a mechanism that transmits force through axial compression and release by means of two flat-surface clutch friction plates. The greater the axial pressure of its two clutch plates, the greater the friction force generated, and the more stable and normal the operation transmitted to the extruder. Under normal operating conditions, the machine generally runs smoothly and without noise; under the rated load, the clutch plate will not slip, will not be stuck, and will not disengage by itself; at the same time, after the clutch plate is separated, it should also be completely disengaged to make the brick machine Stop running without producing other noises or incomplete separation of the two clutch plates. Therefore, it is necessary to adjust the clutch disc clearance in the clutch. If the clearance is large, the clutch disc will slip and damage the clutch disc. If the clearance is too small, the clutch disc will not be easily separated.