Weighing control device on extrusion production line

The utility model provides a weighing control device on an extrusion production line, which comprises a weighing hopper, an extrusion main machine and a central control unit. The central control unit is respectively connected with the weighing hopper and the extrusion main machine and provided with a monitoring module and a control module; the monitoring module is used for monitoring raw material consumption delta G of the weighing hopper within unit time delta t; and the control module is used for controlling screw rotating speed of the extrusion main machine. By controlling stable extrusion quantity through the central control unit, the weighing control device achieves relatively stable extrusion quantity of products, thereby ensuring even wall thickness of the products. Owing to the even wall thickness, the weighing control device saves material consumption and simultaneously ensures product quality, thereby killing two birds with one stone.