INJECTION MOLDING DEVICE

• Main Authors: KAWACHI KAZUHIRO, TAKENOBU HIDEYA, NIIMI TAKAHISA, TAKENAKA FUMIHIRO, KAWAGUCHI TAKUO, SUZUKI MAKOTO
• Format: Patent
• Language: English; Japanese
• Published: 03.08.2015
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; PERFORMING OPERATIONS; POWDER METALLURGY; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

PROBLEM TO BE SOLVED: To provide a stack mold injection molding device, capable of reducing the travel of a movable platen.SOLUTION: A second movable platen 18 is disposed on the opposite side of a first movable platen 16 relative to a fixed platen 14 in a mold opening/closing direction DRoc, so that the fixed platen 14 is disposed between the first movable platen 16 and the second movable platen 18. Consequently, the travel of the first movable platen 16 relative to the fixed platen 14 becomes equal to the opening amount of a first movable mold 402 relative to a first fixed mold 401, and the travel of the second movable platen 18 relative to the fixed platen 14 becomes equal to the opening amount of a second movable mold 422 relative to a second fixed mold 421. Accordingly, any of the travels of the first movable platen 16 and the second movable platen 18 is not required to be increased beyond each of the opening amount of the molds 40 and 42, so that the travels of the movable platens 16 and 18 can be reduced. 【課題】スタックモールド射出成形装置であって、可動プラテンの移動量を小さくすることができる射出成形装置を提供する。【解決手段】第２可動プラテン１８は、型開閉方向ＤＲｏｃにおいて固定プラテン１４に対し第１可動プラテン１６側とは反対側に配置されているので、第１可動プラテン１６と第２可動プラテン１８との間に固定プラテン１４が配置されている。そのため、固定プラテン１４に対する第１可動プラテン１６の移動量が、第１の固定金型４０１に対する第１の可動金型４０２の開き量になり、それと共に、固定プラテン１４に対する第２可動プラテン１８の移動量が、第２の固定金型４２１に対する第２の可動金型４２２の開き量になる。従って、第１可動プラテン１６および第２可動プラテン１８の何れの移動量も、個々の成形金型４０、４２の開き量を超えて大きくする必要がなく、その可動プラテン１６、１８の移動量を小さくできる。【選択図】図１