| 摘要 |
PURPOSE:To form a shape skin of uniform wall thickness and without defects on the surface by varying the retaining position correspondingly to the mold dividing surface shape of projected mold in the state of retaining the skin, bringing the skin into contact with the projected mold, releasing all retentions after mold clamping and vacuum molding. CONSTITUTION:A skin 1 consisting of a vinyl chloride resin skin layer and a backing layer composed of flexible PP foamed bodies laminated on the rear surface side of the skin layer is heated, and when the same is in the state of being able to deform, a bottom force 3 which is a projected mold is lifted up. When clamps C and B on the side of a high dividing surface 30 are lifted up from a position where the skin 1 is pushed up by 100mm following the rising of the bottom force 3, said clamps are on the positions higher than those of clamps D and A. When the bottom force 3 and a top force 4 are brought into contact with each other and mold clamped, clamps A-D are opened and the skin 1 comes into a clamping section by means of the pressing force from the bottom force 3. Then, the inside of the cavity is vacuumized by a vacuum pump 5 through an air exaust path 40 provided on the top force 4, and the skin 1 is vacuum molded. |
