（1） Process principle of fully automatic in and out board
The automatic in and out board system is composed of a hot press in board frame and an out board frame, which is suitable for the production line of multi-layer plywood and floor. The hot press in board frame is arranged on the in board side of multi-layer hot press, and the hot press out board frame is arranged on the out board side of multi-layer hot press, The hot press in frame is used to send the glued pre pressed slab into the multi-layer hot press, and push the hot pressed slab out of the multi-layer hot press into the hot press out frame. The hot press out frame is used to store the hot pressed slab for cooling. It is one of the supporting auxiliary equipment in the multi-layer plywood and floor production line.
（2） Advantages of fully automatic in and out board
A multi-layer hot press is equipped with a set of hot press in and out of the plate frame. During the hot pressing process of the last car of slab, the next car of slab can be loaded into the plate frame of the hot press and the next car of slab can be loaded into the hot press at the same time when the hot pressing is finished and the discharging is finished. The hot pressing cycle can be shortened compared with the conventional operation. At the same time, because the operator is far away from the hot press, personal injury accidents such as scalding can be avoided, The automatic in and out board device adopts PLC control, frequency conversion speed regulation, convenient installation and debugging, simple operation, which reduces the labor intensity of the hot press operator, shortens the hot press cycle and improves the production efficiency.