Improved screen printing machine with lifting structure

The utility model is a screen printing machine with an improved lifting structure. The interlocking structure of the crank arm linkage lifting and squeegee printing mechanism has the functions of buffering and shockproof, so as to increase the endurance strength and ensure the precision and durability. A connecting mechanism is provided between the crank arm and the link of the interlocking squeegee mechanism, and the connecting mechanism is composed of a connecting seat, a buffer spring, and a connecting block having a slide hole and a ball sleeve. The connecting rod and the associated squeegee mechanism can be elastically buffered at the moment of raising and lowering, thereby reducing the impact force. In addition, the double-end sliding seat of the squeegee mechanism is also provided with a downward buffer to form the lowest contact platen. When bilateral double buffering, the utility model can obtain excellent lifting and lowering effect.