| 摘要 |
PROBLEM TO BE SOLVED: To reduce heating loss of a sheet and to shorten a heating time by opposing upper and lower heating platens for pinching and heating the sheet at upstream side of a molding unit having a plug and a female mold in a sheet conveying direction, thereby plug molding it. SOLUTION: When an upper heating platen 31 and a lower heating platen 34 pinch a sheet S at both sides and heat it, the platen 31 rises, the platen 34 falls, and the heated sheet S is sent to a molding unit 2. A plug 21 and a female mold 23 hold and mold the sheet S, and a molded sheet S is sent to a punching machine 4, and becomes individual products W. However, in the case of molding a product of small drawing, there are occasions that the plug 21 may not be used. Timing of heating and molding is controlled by a controller of a molding machine 1. If the platens 31 and 34 excessively strongly pinch the sheet S, its sending is deteriorated. Accordingly, the platen 31 is set vertically adjustably at its position so that a small gap may be formed between the sheet S and the platen 31. |
