System for carrying out automatic packaging according to object sizes

The invention provides a system for carrying out automatic packaging according to object sizes. The system consists of a conveying device, a detection device, a cutting device, a box-forming and packaging device and a main controller, wherein the conveying device comprises a first conveyer, a second conveyer and a third conveyer; a to-be-packaged material is fed into the first conveyer; the detection device is arranged at the middle part of the first conveyer; the detection device communicates with the main controller through a serial port; the main controller controls the cutting device to carry out cutting according to the detection result; a packaging material enters the second conveyer to move opposite to the to-be-packaged material; when the packaging material meets the to-be-packaged material, the two materials move to the box-forming and packaging device to undergo box forming and packaging; and the third conveyer is used for conveying a finished product. The system is connected with a client ERP syste