| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection molding machine capable of stabilizing the temperature distribution of a mold at the time of cooling by cutting off the mold from the outside atmosphere to mass-produce a molded product free from a sink, residual stress and deformation and having high surface precision. SOLUTION: The movable and fixed molds 4 and 5 arranged between movable and fixed platens 2 and 3 are surrounded by barrier walls 10 and 20 to be cut off from the peripheral atmosphere. Further, the barrier walls 10 and 20 are equipped with a pair of rectangular cylindrical large and small barrier wall main bodies 11 and 21 and magnet flanges 12 and 22 fixed to the rear end edges of the barrier wall main bodies 11 and 21 and attached to the movable and fixed platens 2 and 3 in a freely detachable manner by the magnets. Further, the barrier walls 10 and 20 are constituted so that the mutual inner and outer peripheries thereof are overlapped to form a closed space in the on-off state of the movable and fixed molds 4 and 5. COPYRIGHT: (C)2006,JPO&NCIPI
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