▎ 摘　　要

NOVELTY - The utility model claims a double-head etching machine, comprising a machine frame, wherein the machine frame upper end provided with a movable guide rail at the upper side of the hollow working groove by a bolt fixedly connected with the upper side of the hollow working groove is provided with a control cabinet guide rail; the front end of the movable guide rail is provided with a supporting chain; In the utility model, a floating ball is set in the water tank box; the first supporting rod and the second supporting rod; if the water source in the water tank box is not enough, the user can conveniently observe through the inclined angle of the first supporting rod; the utility model is provided with a groove at the intersection of the box body and the first supporting rod; and the groove is irregular structure; Therefore, if the water in the water tank is sufficient, the first supporting rod is inclined downwards; if the water source in the water tank is reduced, the first supporting rod is gradually inclined upwards under the movement of the floating ball, so that the user can conveniently observe.