Device and method for treating containers filled with foamable liquid filling material

Abstract

The invention relates to a device for treating containers (2) filled with foamable liquid filling material. Firstly, the invention relates to a device for treating containers filled with foamable liquid filling material. The device comprises a foaming unit (10), a closing unit (7) downstream in the transport direction, and an ejection unit (15) downstream thereof. Also, a foaming unit (10) is designed to effect foaming of the filling material. This is followed by an optoelectrical monitoring unit (12, 14) with which the foam formation in the containers and / or the fill level of liquid filling material in the container can be monitored using at least one first monitoring criterion during and / or after closing. The optoelectrical sensor unit (12.1, 12.2) and the monitoring unit (14) are designed for monitoring the foam formation on a container outer wall and / or the fill level of liquid filling material in the container during and / or after closing of the containers. The ejection station isdesigned to eject containers which lie outside a target range of the at least one first monitoring criterion in terms of the foam formation, prompted by a signal delivered by the monitoring unit.

Description

technical field [0001] The invention relates to a device for processing containers already filled with a foamable liquid filler. In addition, the invention relates to a method for treating containers already filled with a foamable liquid filler. Background technique [0002] It is known in the beverage industry to load bottles, kegs or similar containers with a liquid process medium under pressure prior to closure, which containers have been filled with a liquid filler (eg beer) in a filling machine. The aim is to foam the filling in the corresponding container In order to thereby displace the air (or the oxygen present) present above the filling level in the container and avoid damage to the filling (or its durability and taste) due to the oxygen. In this case, an aqueous solution or water (more precisely, for example, an aqueous solution or water, respectively, in a heated state) is used as the liquid treatment medium. [0003] For the introduction of the liquid treatm...

AI Technical Summary

Problems solved by technology

This method, which works well in itself, has the disadvantage that there is a comparatively long time period between foaming and optical inspection, during which time the otherwise abundant foam may have broken down, so that an excessively high number of bottles is ejected

If the filling facility is now operated at high power, it can happen in these "slow-foaming" containers that when the container reaches the analysis and evaluation range of the camera, the foam top has not yet reached the desired level of foam formation. height, which in turn would be identified as erroneous and subsequently ejected

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