Abstract: An assembly for detection of foreign bodies in a multihead weigher includes an image recorder and a lighting module and an image evaluation module. The multihead weigher includes weighing containers for filling with bulk material, a selection of the bulk material being emptiable into chutes combined in the shape of a funnel upon arrival of a trigger signal. The image recorder records an image series, and the lighting module and the image evaluation module output a signal upon detection of a foreign body in the image series. The image recorder includes one or more cameras for optical capturing of the funnel, the one or more cameras being arranged inside of or above the funnel and being set up to capture one or more sections of an interior surface of the funnel between two horizontal planes.

Abstract: The invention relates to an assembly for detecting foreign bodies in a combination weigher (1). The combination weigher (1) has a plurality of weighing containers (2) for filling bulk material, a selection of which can be emptied into one or more slides that are assembled in the form of a funnel (3), in response to a trigger signal. The invention additionally relates to a foreign body detection device (4) for such a combination weigher (1). According to the invention, the assembly has an image capturing unit (10) for capturing a series of images, a lighting unit (11), and an image evaluating unit for emitting a signal if a foreign body is detected in a series of images, wherein the image capturing unit (10) has at least one camera (5) for optically detecting the funnel (3), and the at least one camera (5) is arranged within or above the funnel (3) and is designed to detect at least one section (8) of the inner surface of the funnel (3) between two horizontal planes.