1. firstly, after the wheat flour processing machine is started, the grinding roller rotates and is in a ready state, and the distance between the two rollers is large, so no feeding is allowed. If grinding is needed, it is usually called feeding the slow roller closer to the fast roller, and at the same time, the feeding mechanism starts to feed, so the flour processing machinery is in an excessive state.

2. Secondly, in the transitional state, the relevant parts of the feeding structure and the rolling distance adjusting mechanism are running.

3. finally, when the distance between the two rollers is equal to the working rolling distance, the two rollers are closed, and the flour processing machinery is in working condition and normal grinding begins. If the flour processing machine needs to quit the working state, the slow roller leaves the fast roller, starts to retreat, and stops feeding at the same time, and the flour processing machine returns to the preparation state through the transition state.