The invention relates to an automatic
exposure machine for a flexible
printed circuit board. The automatic
exposure machine comprises a first
exposure mechanism and a second exposure mechanism, a material feeding stacking mechanism and a material receiving stacking mechanism, a plate overturning mechanism and a sucking
disc assembly, wherein the first exposure mechanism and the second exposure mechanism are arranged side by side for exposing both sides of the flexible
printed circuit board respectively; the material feeding stacking mechanism and the material receiving stacking mechanism are respectively arranged in front of the first exposure mechanism and in front of the second exposure mechanism; the plate overturning mechanism is arranged at the back of the two exposure mechanisms; the sucking
disc assembly is used for conveying the flexible
printed circuit board among the mechanisms; the plate overturning mechanism comprises an overturning
assembly capable of rotating the flexible printed circuit board by 180 degrees and a sliding plate
assembly for driving the flexible printed circuit board to move left and right corresponding to the first exposure mechanism and the second exposure mechanism; each exposure mechanism comprises a supporting
assembly, exposure glass arranged above the supporting assembly, an aligning platform surface which is positioned below the exposure glass and can be matched with the exposure glass to clamp the flexible printed circuit board between the aligning platform surface and the exposure glass and a glass opening and closing assembly for driving the exposure glass to move up and down, and an aligning mechanism for driving the flexible printed circuit board to slide or rotate on the plane is arranged on the bottom surface of the aligning platform surface. According to the automatic exposure
machine for the flexible printed circuit board, exposure for both sides of the flexible printed circuit board can be completed once, and the problems of the flexile printed circuit board such as aligning difficulty and easy deflection are avoided, so that the production efficiency is improved.