Pressing mechanism for foam carving machine

The utility model discloses a hold-down mechanism for a foam carving machine, relates to the technical field of foam carving machines, solves the problems that some existing foam carving machines are inconvenient in hold-down adjustment and time-consuming and labor-consuming in adjustment when facing to-be-processed materials with different sizes, and comprises a base and a carving mechanism arranged on the base, cleaning boxes are fixedly mounted on two opposite sides of the base; a bidirectional threaded rod is rotatably connected to the inner side wall of the base, a driving mechanism is connected to the bidirectional threaded rod, clamping plates are connected to the two ends of the outer surface of the bidirectional threaded rod in a threaded mode, sliding mechanisms are arranged at the bottoms of the clamping plates, and sliding rods are slidably connected to the interiors of the clamping plates. When facing materials to be processed with different sizes, a worker can control the clamping plate to move