Method for making bags and an apparatus for carrying out this method
AssigneeWindmoeller & Hoelscher KG
InventorsFritz Achelpohl, Friedhelm Mundus, Hans-Ludwig Voss
Life of this patent
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Abstract
The invention relates to a method for making bags preferably provided with side folds or other flat workpieces, which have a slip extending beyond their boundary. In accordance with the invention partly prefabricated bags are laterally supplied to a conveyor belt driven in a timed manner, and are seized there by grippers and fixed. By means of a glue applicator a glue strip is applied to the bag in its bottom region during the timed feeding movement of the conveyor belt. Finally, in a slip application station a slip is supplied each laterally to the conveyor belt and is placed onto the glue surface. The invention furthermore relates to an apparatus for carrying out the aforementioned method.
Claims8
A method for making bags or other flat workpieces, which have a slip extending beyond their boundary, characterized by the following steps:
- a) supplying partly prefabricated bags (5) laterally to a conveyor belt (6) driven in a timed manner,
- b) gripping said bags with grippers (6') located on the conveyor belt,
- c) applying a strip of glue via a glue applicator (7) to provide a glue surface on each bag (5) in a bottom region thereof, while the conveyor belt (6) is advanced in a timed manner,
- d) in a slip application station (8), supplying a slip (18) laterally to each region on the conveyor belt (6) and placing said slip onto the glue surface thereof.
An apparatus for carrying out a method for making bags optionally provided with side folds or other flat workpieces, which have a slip extending beyond a boundary edge, characterized by:
- a conveyor belt (6), which can be driven in a timed manner, for laterally receiving the partly prefabricated bags (5) via grippers (6') arranged thereon
- a supplying station for the partly prefabricated bags (5) located adjacent the conveyor belt, a glue applicator (7) arranged following the supplying station in a conveying direction of the conveyor belt (6) for applying a strip of glue on each bag in a bottom region thereof, and a slip application station (8) following the glue applicator, which is arranged at a distance from the supplying station, which approximately corresponds to a feed length of the conveyor belt (6) for applying a slip laterally to each bag on the conveyor belt and placing said slip onto the strip of glue on each said bag.
Dependencies are inferred from the claim text.