The utility model relates to a double lifting swing arm type
offset printing mechanism which is characterized in that a printing roller
station, a first lifting swing arm and a second lifting swing arm are arranged on a rack, a first mounting part for mounting a
transfer printing roller is arranged on the first lifting swing arm, a second mounting part for mounting a printing roller is arranged on the second lifting swing arm, and the printing roller
station is arranged above the first mounting part; the second mounting portion is disposed below the first mounting portion. A double-lifting swing arm structure is adopted, a
transfer printing roller and a printing roller can be assembled, the corresponding
transfer printing roller and the printing roller are lifted and lowered in a swing lifting mode, a large operation space can be vacated for
assembly after the transfer printing roller and the printing roller swing and are separated from each other along with corresponding swing arms, the space occupied by the double-lifting swing arm structure is relatively compact, and the disassembly and
assembly convenience of all the rollers is improved; the
assembly of transfer rollers with different sizes and diameters and the like is met, the operation is stable, the size of the closing pressure is relatively convenient to debug and is not easy to interfere with each other when the closing pressure and the separating pressure are separated, and the closing pressure is lifted upwards and is not easy to conflict during the closing pressure.