VACUUM/COMPRESSED-AIR MOLDING METHOD OF LAMINATED SHAPE

摘要

PURPOSE:To obtain the laminated shape of excellent molding accuracy and finishing by laminating a skin material, etc. on a plasticized resin sheet, feeding the sheet between a die with a vacuum suction hole and a die with a compressed air blow-off hole, holding the resin sheet, etc. to a fringe section and vacuum/compressed-air molding the whole body. CONSTITUTION:A thermoplastic resin is extruded in a sheet shape from the extruding machine 31 of a continuous extruding molding line 30 and changed into the resin sheet 32, and the skin material 34 is placed on the sheet and a stacked material 36 is formed. The stacked material is fed between two dies of a vacuum/compressed-air molding device 40 consisting of the first die 44 with a large number of the vacuum suction holes 42 and the second die 48 with a large number of the blow-off holes 46 for compressed air. At least the resin sheet 32 section of the stacked material 3 is held by the fringe sections 50 of two dies, the stacked material 36 is pushed against the die surface of the first die 44 by the blow-off of pressure air from the blow-off holes 46 of the second die 48 and a suction from the vacuum suction holes 42 of the first die 44, and the desired laminated shape is obtained through predetermined molding operation.