aparelho para colar duas telas de material de empacotamento

• Main Authors: MATTHIAS MOELLER, MATTHIAS GAJEWSKI, FERDINAND SCHEU, KLAUS SPECHT, MICHAEL HEUN
• Format: Patent
• Language: Portuguese
• Published: 30.10.2012
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNERANALOGOUS TO PAPER; MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD ORMATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; PACKING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; STORING; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUSTO PAPER

Described is an apparatus for glueing two webs ( 3, 4 ) of packaging material for the production of liquid-tight packs, wherein each web ( 3, 4 ) is covered at least at one side with a liquid-tight adhesive layer ( 58, 65 ) which can be activated by heat, comprising clamping means ( 5, 21, 27 ) for clamping the material webs ( 3, 4 ) fast, a cutting unit ( 11 ) for applying an inclined cut ( 16 ) extending substantially transversely with respect to the material web ( 3, 4 ), and a welding unit ( 30 ) for applying heat and pressure for glueing the material webs ( 3, 4 ) along the adhesive strip ( 29 ). In order when changing an empty roll to a new full roll at the factory to provide the material web with a factory adhesive location of adequate quality which ensures a higher and more reliable level of liquid-tight sealing integrity, it is provided in accordance with the invention that the welding unit ( 30 ) has a slider ( 31 ) which is displaceable along a transverse rail ( 28 ) substantially transversely with respect to the direction of travel ( 9 ) of the material web ( 3, 4 ) and on which are arranged a heating means ( 33 ) and therebehind in the direction of displacement ( 20 ) a pressure roller ( 38 ).