Can lid manufacturing device, can lid manufacturing method, can lid, and can container containing contents

Abstract

A can lid manufacturing device, a can lid manufacturing method, a can lid, and a can container containing contents that improve openability and pressure resistance of the can lid with a simple configuration. A can lid manufacturing device is configured to manufacture a can lid, the can lid manufacturing device including: a rolling direction detection unit including a rotation drive unit configured to rotate the can lid and a reflected light detection unit; and a control unit. The reflected light detection unit includes a light-emitting unit and a light-receiving unit, and the control unit is configured to detect the rolling direction of the can lid based on change information on a change in light intensity of the reflected light reflected by the can lid to rotate, the information being obtained by the rolling direction detection unit.

Dependencies are inferred from the claim text.