Full-automatic laser etching machine

The invention discloses a full-automatic laser etching machine which comprises a workbench, an unwinding assembly and a winding assembly are installed at the two ends of the workbench correspondingly, the unwinding assembly comprises a first installation frame and an unwinding roller, the first installation frame is installed on the workbench, and first air cylinders are installed at the two ends of the first installation frame correspondingly; the telescopic end of the first air cylinder penetrates through the first mounting frame and then is connected with the end of the unwinding roller through a bearing, and a sensing assembly is mounted at the end, close to the unwinding assembly, of the workbench and matched with the first air cylinder. A pressing die assembly is mounted above the middle part of the workbench; a laser transmitter is arranged on the right side of the die pressing assembly and installed above the workbench through an adjusting assembly. The position of a label can be sensed in real time t