screw cap, tool for feeding a screw cap, packaging container, and methods for aligning a screw cap, and for screwing a screw cap

摘要

a screw cap (200) comprises a base portion (210) comprising an upper surface (212) and a lower surface (214); an annular portion (220) raised from the base portion (210), the annular portion having an inner surface (222) and an outer surface (224); at least a first threaded portion (252) arranged on the inner surface (222) of the annular portion. the base portion (210) comprises engaging means (240) which are configured to engage a tool (300) with at least one complementary engaging means in a process of threading the lid onto the container with the complementary threaded neck portion. Also described are a tool for feeding a screw cap into a fastener, a method for aligning the screw cap and the tool relative to each other, and a method for threading the screw cap over a threaded neck portion of a screw container. packaging.