The present disclosure relates to a hot glue unit for a labeling machine in the beverage processing industry. The hot glue unit includes a housing, a glue roller disposed in an interior of the housing, a glue container, and a filter unit including an extractor connected to the housing. The extractor is to extract gases from the interior of the housing and supply the gases to the filter unit before the gases are to exit the hot glue unit.

The present disclosure relates to a hot glue unit for a labeling machine in the beverage processing industry. The hot glue unit includes a housing, a glue roller disposed in an interior of the housing, a glue container, and a filter unit including an extractor connected to the housing. The extractor is to extract gases from the interior of the housing and supply the gases to the filter unit before the gases are to exit the hot glue unit.

There is described a labeling apparatus (1) for applying labels (2) onto a succession of articles (3) and a method of setting-up of said labeling apparatus (1) prior to the application of the labels (2). The labeling apparatus (1) comprises a transfer drum (21) for retaining on its outer surface (22) labels (2), a glue application roller (19) having an outer lateral surface (20) and being configured to apply a pattern of glue onto the labels (2). The transfer drum (21) comprises a plurality of pad assemblies (24) arranged along its outer surface (22) and pad assembly alignment means (42) configured to modify orientation and/or position of each one of the plurality of pad assemblies (24) to a respective working configuration for aligning each one of the plurality of pad assemblies (24) with respect to the outer lateral surface (20) of the glue application roller (19).