| 摘要 |
PURPOSE:To enhance cooling efficiency and capability of a metal mold device by a method wherein a thermoelectric element is placed in a mold near a molding surface, and they are brought into close contact with the mold while directing heat-absorbing surfaces of the elements toward the molding surface side so as to cool heat-radiating surfaces. CONSTITUTION:When producing a molded article S while cooling strongly a part in the vicinity of a sprue 8, the thermoelectric element 5 is provided between the main body of the fixed-side mold 1b and a nozzle support 7 while directing the heat-absorbing surfaces of the element 5 toward the molding surface side of the mold 1, utilizing the support 7. The heat-radiating surfaces of the elements 5 are cooled by cooling water passed through holes 3 for cooling. When the molded article S part is to be cooled strongly, the elements 5 are provided between a molding surface part of the movable-side metal mold 1a facing against the sprue 8 and a cooling insert 2, with the heat-absorbing surfaces of the elements 5 faced to the molding surface of the mold 1a, and the heat-radiating surfaces 5 is cooled by cooling water passing through the hole 3. In addition, water is also passed through grooves 4 for cooling so as to cool the mold 1b as in a conventional case. |
