Paper film printing mechanism for single package straw

The utility model discloses a single package straw paper film printing mechanism, which comprises a mounting plate, and is characterized in that more than two groups of printing parts are arranged on the mounting plate along the paper film conveying direction, each group of printing parts comprises a rubber wheel, a printing roller and an ink roller, the rubber wheel can elastically swing to press the upper part of the printing roller, the ink roller is contacted with the lower part of the printing roller, and the printing roller is arranged on the mounting plate. The ink roller is provided with an ink box, the printing roller is provided with a servo motor, and the printing roller is in linkage with the ink roller. According to the utility model, the printing length of each group of printing parts on the paper film can be quickly adjusted, and different printing lengths of different groups of printing parts can be realized. 本实用新型公开了一种单支包吸管纸膜印刷机构，包括有安装板，其特征在于：所述安装板上沿纸膜传送方向设有两组以上印刷部件，每组印刷部件包括有胶轮、印刷辊和墨辊，胶轮可弹性摆动