INJECTION MOLDING DIE AND INJECTION MOLDING METHOD

PROBLEM TO BE SOLVED: To provide an injection molding die that can dispense with cleaning around a ring cutter.SOLUTION: A clearance between the inner peripheral surface of a ring cutter 31 and an inner mold 39 is sealed with an inside seal ring 36, and a clearance between the outer peripheral surfa...

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Bibliographic Details
Main Authors KAZAMI TOSHIO, HOSOI SHUN, YUSA JUN, HIRANO NOBORU
Format Patent
LanguageEnglish
Published 22.08.2013
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
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Summary:PROBLEM TO BE SOLVED: To provide an injection molding die that can dispense with cleaning around a ring cutter.SOLUTION: A clearance between the inner peripheral surface of a ring cutter 31 and an inner mold 39 is sealed with an inside seal ring 36, and a clearance between the outer peripheral surface of the ring cutter 31 and an inner mold 21 is sealed with an outside seal ring 35. The clearances between the ring cutter and a die are thus sealed with the inside seal ring and the outside seal ring to prevent molten resin filled in a cavity from leaking to the die side. As a result, cleaning caused by a resin leakage is dispensed with.
Bibliography:Application Number: JP20120026069