INJECTION MOLDING MOLD

• Main Authors: ONODERA SHU, ASUKA HIDEAKI
• Format: Patent
• Language: English; Japanese
• Published: 04.06.2020
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; 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

To prevent flashes caused by the opening of mold components in an injection molding mold having a cavity portion extending along the mold opening/closing direction and its perpendicular direction.SOLUTION: An injection molding mold 1 is provided with a stationary mold 10 and a movable mold 20 relatively moving in the mold opening/closing direction, and includes a side cavity portion 5 extended along the mold opening/closing direction and the first perpendicular direction in a cavity 3 formed between the stationary mold 10 and the movable mold 20 in a clamped state. The injection molding mold is further provided with a demolding core 30 and a following core 40 that partition an end portion of the side cavity portion 5 across the stationary mold 10 and the movable mold 20 in the second perpendicular direction. The demolding core 30 and the following core 40 are movable in the second perpendicular direction while partitioning the end portion of the side cavity portion 5 across the stationary mold 10 and the movable mold 20 in a clamped state, and engages with the stationary mold 10 in the second perpendicular direction with substantially no allowance.SELECTED DRAWING: Figure 1 【課題】金型開閉方向とこれに直交する方向とに沿うように延びるキャビティ部を有する射出成形金型において、金型構成部品の開きに起因するバリを抑える。【解決手段】金型開閉方向に相対移動する固定型１０および可動型２０を備え、型締め状態で固定型１０と可動型２０との間に形成されるキャビティ３に、金型開閉方向と第１直交方向とに沿うように延びる側方キャビティ部５が含まれる射出成形金型１である。第２直交方向で固定型１０と可動型２０とに跨って側方キャビティ部５の端部を区画する脱型コア３０および追従コア４０をさらに備えている。脱型コア３０および追従コア４０は、型締め状態で、固定型１０と可動型２０とに跨って側方キャビティ部５の端部を区画しながら第２直交方向に移動可能で、且つ、固定型１０に対して、第２直交方向に実質的に遊びなく係合するように構成されている。【選択図】図１