Foreign body removing device of the vessel cover

Abstract

The present invention provides a small and inexpensive foreign matter removal device for container caps that reliably removes foreign matter such as paper dust from the container cap by jetting air. Foreign matter adhering to the inner and outer surfaces of container caps conveyed by the screw at predetermined intervals in the foreign matter removal chamber is sprayed with air from the air nozzle, and the foreign matter adhering to the inner and outer surfaces is removed, and the air that has passed between the caps is sucked into the cap and the air nozzle. It can be effectively cleared without spreading into the room or generating backflow in the local concentration passage arranged opposite to and close to the passing cover. The air in the indoor space that does not face the opening of the funnel of the local concentrating passage is sucked into the suction passage through the gap in the outer periphery of the local concentrating passage, thereby removing foreign matter separated from the cap. Since the external air inlet is provided, it is possible to increase the suction amount of the dust collector to be larger than the supply amount from the air supply pipe without impairing the stable conveyance of the cap by increasing the air volume passing through the cap.

Description

technical field

[0001] The present invention relates to a container cap foreign matter removal device for removing foreign matter attached to container caps such as can caps. Background technique

[0002] Conventionally, various methods and devices for cleaning container caps such as metal caps and synthetic resin caps supplied to crimping devices or capping machines before being attached to containers have been proposed. For example, there has been proposed a method of transporting container caps (hereinafter simply referred to as caps) of can caps supplied to the crimping device at predetermined intervals while rotating them, and irradiating the inner and outer surfaces of the caps with ultraviolet light during the transport to sterilize them. (For example, refer to Patent Documents 1 and 2), or a method of spraying washing water to clean the caps that are conveyed while rotating while maintaining the same interval (for example, refer to Patent Document 3), or spraying and...

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