1. An energy-saving environment-friendly digital lettering machine, which comprises a conveying mechanism, a rewinding mechanism and a machine base, wherein the machine base is provided with a working platform, and the conveying mechanism and the rewinding mechanism are respectively arranged on a left side and a right side of the working platform, wherein the lettering machine further comprises a lettering mechanism, the working platform is provided with at least one lettering mechanism, and each lettering mechanism is arranged on the working platform through a corresponding mounting base, wherein the conveying mechanism, the lettering mechanism and the rewinding mechanism are all electrically connected with a control system of the lettering machine;each lettering mechanism comprises a lettering assembly, an X-axis moving assembly and a Z-axis moving assembly, wherein the lettering assembly realizes engraving of patterns, and the lettering assembly is arranged on the X-axis moving assembly and supported by the Z-axis moving assembly;
wherein the conveying mechanism comprises a paper feeding assembly and two paper pulling assemblies;
wherein the paper feeding assembly comprises a paper feeding base; a material feeding shaft; and a paper pulling roller, wherein the material feeding shaft and the paper pulling roller are both arranged on the paper feeding base, and the material feeding shaft and the paper pulling roller are sequentially arranged to form a paper feeding path through which a material piece passes;
wherein each paper pulling assembly comprises two paper pulling side plates; a main paper pulling roller; and two paper pulling compression roller units, wherein the main paper pulling roller and the paper pulling compression roller units are all fixed on the working platform through the paper pulling side plates, and the paper pulling compression roller units are movably connected with the main paper pulling roller;
wherein each paper pulling compression roller unit comprises a paper compression roller; two paper compression sliders; two cylinders; and two cylinder clamping blocks, wherein two ends of the paper compression roller are respectively provided with the two paper compression sliders, the two cylinders and the two cylinder clamping blocks, the paper pulling side plates each being provided with a supporting groove fitted to a respective one of the paper compression sliders, the paper compression sliders are slidably connected with the paper pulling side plates, the cylinders are fixedly connected with the cylinder clamping blocks, the two cylinder clamping blocks are fixed at the two ends of the paper compression roller respectively, and a peripheral surface of the paper compression roller is pressed against a peripheral surface of the main paper pulling roller to form a conveying path of the material piece;
wherein the rewinding mechanism comprises a rewinding base; a stripping assembly; a waste collecting shaft; and a material collecting shaft, wherein the stripping assembly, the waste collecting shaft, and the material collecting shaft are all arranged on the rewinding base, the stripping assembly includes a first stripping roller and a second stripping roller, the second stripping roller is arranged above the first stripping roller, a peripheral surface of the second stripping roller is pressed against a peripheral surface of the first stripping roller, and a finished product is wound on the material collecting shaft and a waste product is wound on the waste collecting shaft after the material piece passes through the stripping assembly;
wherein the X-axis moving assembly is a linear motor, and the Z-axis moving assembly comprises a base; a motor; and a screw rod, wherein the motor and the screw rod are arranged on the base, the base is provided with a sliding rail, the screw rod and the sliding rail are arranged in parallel in a vertical direction, the screw rod and the motor are connected, the base is fixedly connected with the X-axis moving assembly, and the screw rod and the sliding rail are slidably connected with the lettering assembly.