Printing instrument

The utility model discloses a printing instrument, including the tool body, tool body upper surface is equipped with a plurality of draw -in grooves, and corresponding every draw -in groove of lower surface is opened there is the groove of induced drafting, the equipartition has two at least backup pads on the bottom surface of every draw -in groove, and the backup pad that is located draw -in groove both sides edge is connected with micro air cylinder, micro air cylinder drives the backup pad and reciprocates, a plurality of holes of induced drafting of equipartition between every two adjacent backup pads, it link up to induced draft the hole the draw -in groove and the groove of induced drafting. The utility model discloses a set up the draw -in groove and induced draft the groove to at the draw -in groove with induced draft and be equipped with the hole of induced drafting between the groove, can be with waiting that it places in the draw -in groove to print the product, and adsorb the product in the backup pad through the equipment of induced drafting, can improve the printing effect effectively with product location, reduced the probability that the substandard product produced, improve the cylinder simultaneously and drive the ascending and decline of backup pad, help putting into and taking out of product.