The utility model relates to a semi -automatic table face device, including a board device, positioner, fall board device, closing device, its characterized in that, going out the board device and being equipped with the spring leaf and can going out the board continuous operation in proper order, the base plate is on the assembly line time, and whole pile of table face is pressed on the friction pulley, shang mian compresses tightly with the spring preforming. According to the width of the big minor tune -up base plate spacing groove of base plate, go out table face friction pulley and rotate stall behind the table face of seeing off, the base plate gets into the base plate guide slot through carrying the friction pulley to drive. Then the base plate board by the single chip microcomputer control turning position friction pulley, makes base plate board one end tightly support on the baffle after getting into the guiding groove, and machine base shell target in place this moment. The guide baffle on both sides can be adjusted according to the base plate size. When the table face got into preset position, the motor rotated, and through the gear, the movable plate is opened in the motion of connecting rod transmission, makes table face whereabouts, adheres with the base plate. After dropping on on the base plate, the mutual adhesion is firm under pressing idler wheel's roll extrusion.