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Apparatus and related method for the removal of labels and foil tags adhering to containers, in particular, to bottles
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Inventors: Buchholz, Rainer; Zodrow, Rudolf;
Assignee: KHS ETI-TEC Maschinenbau GmbH (Erkrath, DE)
Primary Examiner: Morris; Theodore
Assistant Examiner: Chaudhry; Saeed T.
Attorney, Agent or Firm: Nils H. Ljungman and Associates
An apparatus for the removal of labels and foil tags adhering at different levels to containers, in particular, bottles. The bottles are gripped axially between a rotary plate and a gripping head on the circumference of a turntable, each of these is a gripping space. Corresponding to each gripping space, there are high-pressure nozzles located on an inner circumference of the turntable relative to the bottles. Jets of fluid from the nozzles are directed approximately tangentially to the surface of each bottle, so that the jets remove the label and the foil tag in a stripping process, and transport the labels and foil tags radially outward to a collector, which collector is equipped with a separator to separate the labels and foil tags from one another. The removal of labels applied with adhesive is facilitated if there is an anti-adhesive layer on the label between the adhesive layer and the label. |
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DETAILED DESCRIPTION The present invention relates to an apparatus for the removal of labels and foil tags adhering to containers, in particular, to bottles of varying heights, and the method therefor.
The apparatus consists of a turntable having an inlet for placing the bottles onto the turntable and an outlet for removing the bottles from the turntable, each of these is a gripping space.
The bottles are axially braced between driven rotary plates and gripping heads located about the outer circumference of the turntable.
Removal elements which act to remove the labels and foil tags from the gripped bottles are located on an inner circumference of the turntable relative to the bottles.
The object of the invention is achieved by means of an apparatus of the type described above, in which the removal elements are designed as high-pressure nozzles, whose essentially radially outward jets strike the surface of the bottle that is to be turned, at least approximately tangentially, so that as the bottle rotates, its label and foil tag arrive in the vicinity of the jets with their exposed leading edges being turned towards the jets.
For labels and foil tags located at various heights on the bottles, there is a stationary collector apparatus with a separator barrier for the separation of the labels from the bottom section of the bottles and foil tags from the top section of the bottles.
The separator barrier is preferably located on the outside periphery of the turntable, and can be adjusted according to the various heights at which the labels and tags are located.
The stationary collector apparatus collects the labels and foil tags which are transported radially outward after removal by the jets, and which labels and foil tags then drop downward with gravity into a collection container.
The separator is preferably designed as a barrier which is disposed such that foil tags removed from the top section of the bottles, along with the fluid from the jets, move over the top edge of the barrier and may impinge upon an outer limiting wall, and then drop over into a first collection container
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