Method for joining plastic parts
AssigneeGreiner Bio-One GmbH
InventorsLutz Staemmler, Andreas Thumm
Life of this patent
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Abstract
The present invention relates to a method for producing a container which consists of a thermoplastic at least to some extent and comprises at least a first compartment element and at least a second compartment element joined to the first compartment element in a joining region by thermoplastic welding. The invention also relates to a plastic container which can be, and preferably is, produced according to said method.
Claims22
A method for producing a container which is at least partially constructed from a thermoplastic material, comprising at least one first compartment element and at least one second compartment element which is thermoplastically welded to the first in a joining region, wherein the method comprises the following method steps:
- a) providing of at least one first and one second compartment element, which each comprise a plate element with at least one joining zone of a thermoplastic material comprising outer edges of the compartment element, wherein at least the second compartment element comprises a side wall arranged around an outer periphery of the plate element having in each case a distal first d a proximal second outer edge,
- b) joining together of the at least two compartment elements such that the thermoplastic material joining zones contact each other and one outer edge of the first compartment element fully abuts the first outer edge of the second compartment element and a full butt joint is formed between the two compartment elements,
- c) welding of the at least two compartment elements by means of at least one temperature-regulated nozzle, wherein the at least one nozzle is guided around a periphery of the butt joint while in contact with the butt joint or the butt joint is guided alongside the at least one nozzle that is in contact with the at least ne nozzle, wherein the first and second outer edges of the compartment elements are plasticized in the process and plasticized welding filler is simultaneously transferred to the butt joint so that a weld seam is formed between the two compartment elements, and
- d) obtaining a plastic container, wherein the at least two compartment elements are welded to one another.
A plastic container which is at least partially constructed from a thermoplastic material, comprising at least one first compartment element and at least one second compartment element which is thermoplastically welded to the first in a joining region, wherein the plastic container is made from a method which includes the following method steps:
- a) providing of at least the first and the second compartment element, which each comprise a plate element with at least one joining zone of a thermoplastic material comprising outer edges of the compartment element, wherein at least the second compartment element comprises a side wall arranged around an outer periphery of the plate element and having in each case a distal first and a proximal second outer edge,
- b) joining together of the at least two compartment elements such that the thermoplastic material joining zones contact each other and one outer edge of the first compartment element fully abuts the first outer edge of the second compartment element and a full butt joint is formed between the two compartment elements,
- c) welding of the at least two compartment elements by means of at least one temperature-regulated nozzle, wherein the at least one nozzle is guided around a periphery of the butt joint while in contact with the butt joint or the butt joint is guided alongside the at least one nozzle that is in contact with the at least one nozzle, wherein the first and second outer edges of the compartment elements are plasticized in the process and plasticized welding filler is simultaneously transferred to the butt joint so that a weld seam is formed between the two compartment elements, and
- d) obtaining a plastic container, wherein the at least two compartment elements are welded to one another.
Dependencies are inferred from the claim text.