Injection molding device for paste product distribution tube, has core with peripheral groove permitting circulation of synthetic material from supplying channel to volume defined by external mold and main core

摘要

The device has a main core (2) with a housing (12) opened toward external side at a level of an end (11) against an end (10) connected to an external mold (1). A core (13) has a shape that is complementary to shape of the housing. The core (13) has a synthetic material supplying channel and a peripheral groove, where the core (13) is inserted in the housing in a molding position. The peripheral groove permits the circulation of the synthetic material from the supplying channel to a volume defined by the external mold and the main core.