How to monitor the quality of plywood machinery during the production process
The quality foundation of plywood production lies in real-time monitoring and precise control of mechanical operating parameters and process status. This process begins with the single board preparation stage. The cutting accuracy and stability of the rotary cutting machine directly determine the quality of the veneer, and it is necessary to monitor the matching between its feed speed and spindle speed in real time to ensure the uniformity of the veneer thickness. At the same time, online detection of the moisture content at the outlet of the veneer dryer is a key preventive measure to avoid subsequent bonding defects and deformations.
Assembly and hot pressing are the core processes of quality formation. The glue amount control system of the glue coating machine must maintain high accuracy, by monitoring the roller speed and glue viscosity in real time, to ensure uniform and consistent glue application per unit area of the veneer. As the most critical equipment, the monitoring system of the hot press machine needs to synchronously track the three core parameters of pressure, temperature, and time. Establish a coupled control model of pressure temperature time to ensure that the adhesive curing of the slab is completed under preset thermodynamic conditions, thereby ensuring the final mechanical strength and dimensional stability of the product.
Sanding and trimming are key processes that determine the appearance grade of finished products. The monitoring focus of the fixed thickness sanding machine is on the matching of the sand belt particle size and feed rate. Through the feedback data of the online thickness gauge, the sanding amount is adjusted in real time to ensure that the thickness tolerance of the finished product meets the standard. The monitoring of edge cutting saws focuses on positioning accuracy and sawing stability to obtain regular geometric dimensions of the board. By closed-loop control of mechanical parameters in each process, a complete quality monitoring system is established.
