| 摘要 |
PURPOSE:To provide a foam molding method and a device which molds a product of high quality and at high speed by, thermally causing a foaming material to foam under foaming control and molding the foaming material rapidly in a free foaming process. CONSTITUTION:A foaming material 1 is held by a clamp 2, and then is pressed by pressing elements 5, 6 of paired thermal plates 3, 4 provided on both sides of the clamp 2. In addition, a thermal foaming process is controlled by controlling the pressing force stepwise. Next, the pressure is released by parking the pressing elements 5, 6 to both sides to stop the foaming process control. After that, the thermal plates 3, 4 are instantaneously moved from the foaming material 1 and the heating of the foaming material 1 is instantaneously discontinued so that the foaming material 1 is allowed to foam freely. If the thermal plates 3, 4 are moved, dies 7, 8 are set against the foaming material 1. Next, the foaming material 1 is promptly molded by the dies 7, 8 in the free foaming process. |
