DE102013210284A1 - Device for welding at least one flexible film web and tubular bag machine - Google Patents
Device for welding at least one flexible film web and tubular bag machine Download PDFInfo
- Publication number
- DE102013210284A1 DE102013210284A1 DE102013210284.4A DE102013210284A DE102013210284A1 DE 102013210284 A1 DE102013210284 A1 DE 102013210284A1 DE 102013210284 A DE102013210284 A DE 102013210284A DE 102013210284 A1 DE102013210284 A1 DE 102013210284A1
- Authority
- DE
- Germany
- Prior art keywords
- laser beam
- sealing
- film web
- sealing elements
- optical element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/009—Working by laser beam, e.g. welding, cutting or boring using a non-absorbing, e.g. transparent, reflective or refractive, layer on the workpiece
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/0665—Shaping the laser beam, e.g. by masks or multi-focusing by beam condensation on the workpiece, e.g. for focusing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/067—Dividing the beam into multiple beams, e.g. multifocusing
- B23K26/0673—Dividing the beam into multiple beams, e.g. multifocusing into independently operating sub-beams, e.g. beam multiplexing to provide laser beams for several stations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/073—Shaping the laser spot
- B23K26/0738—Shaping the laser spot into a linear shape
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
- B23K26/244—Overlap seam welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
- B23K26/26—Seam welding of rectilinear seams
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
- B29C65/1641—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding making use of a reflector on the opposite side, e.g. a polished mandrel or a mirror
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1645—Laser beams characterised by the way of heating the interface heating both sides of the joint, e.g. by using two lasers or a split beam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1654—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
- B29C65/1658—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined scanning once, e.g. contour laser welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1654—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
- B29C65/1661—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined scanning repeatedly, e.g. quasi-simultaneous laser welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1664—Laser beams characterised by the way of heating the interface making use of several radiators
- B29C65/1667—Laser beams characterised by the way of heating the interface making use of several radiators at the same time, i.e. simultaneous laser welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1687—Laser beams making use of light guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
- B29C65/747—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using other than mechanical means
- B29C65/7473—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using other than mechanical means using radiation, e.g. laser, for simultaneously welding and severing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
- B29C66/431—Joining the articles to themselves
- B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
- B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
- B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/49—Internally supporting the, e.g. tubular, article during joining
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
- B29C66/8126—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
- B29C66/81266—Optical properties, e.g. transparency, reflectivity
- B29C66/81267—Transparent to electromagnetic radiation, e.g. to visible light
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
- B29C66/8126—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
- B29C66/81266—Optical properties, e.g. transparency, reflectivity
- B29C66/81268—Reflective to electromagnetic radiation, e.g. to visible light
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
- B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
- B29C66/83411—Roller, cylinder or drum types
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
- B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
- B29C66/83411—Roller, cylinder or drum types
- B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/84—Specific machine types or machines suitable for specific applications
- B29C66/849—Packaging machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
- B65B51/22—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
- B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
- B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/0026—Transparent
- B29K2995/0027—Transparent for light outside the visible spectrum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7128—Bags, sacks, sachets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
- B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
- B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
- B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
Abstract
Die Erfindung betrifft eine Vorrichtung (10; 10a bis 10g) zum Verschweißen wenigstens einer flexiblen Folienbahn (3), mit wenigstens einer Laserstrahlquelle zur Erzeugung wenigstens eines Laserstrahls (17 bis 19; 26; 29; 29a bis 29c), wobei der wenigstens eine Laserstrahl (17 bis 19; 26; 29; 29a bis 29c) in einen die Laserstrahlung absorbierenden Verbindungsbereich (25) der wenigstens einen Folienbahn (3) zum Erzeugen einer Schweißnaht (6; 7, 8) einkoppelbar ist, und mit einer Einrichtung (105, 106) zum in Anlagekontakt bringen der wenigstens einen Folienbahn (3) im Verbindungsbereich (25).The invention relates to a device (10; 10a to 10g) for welding at least one flexible film web (3), with at least one laser beam source for generating at least one laser beam (17 to 19; 26; 29; 29a to 29c), the at least one laser beam (17 to 19; 26; 29; 29a to 29c) can be coupled into a connecting region (25) of the at least one film web (3) which absorbs the laser radiation in order to produce a weld seam (6; 7, 8), and with a device (105, 106) to bring the at least one film web (3) into contact in the connecting area (25).
Description
Stand der TechnikState of the art
Die Erfindung betrifft eine Vorrichtung zum Verschweißen wenigstens einer flexiblen Folienbahn nach dem Oberbegriff des Anspruchs 1. Ferner betrifft die Erfindung eine Schlauchbeutelmaschine zum Herstellen von Schlauchbeutelpackungen unter Verwendung einer erfindungsgemäßen Vorrichtung.The invention relates to a device for welding at least one flexible film web according to the preamble of claim 1. Furthermore, the invention relates to a tubular bag machine for producing tubular bag packages using a device according to the invention.
Eine derartige Vorrichtung ist aus der
Aus der
Offenbarung der ErfindungDisclosure of the invention
Ausgehend von dem dargestellten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine Vorrichtung zum Verschweißen wenigstens einer flexiblen Folienbahn nach dem Oberbegriff des Anspruchs 1 derart weiterzubilden, dass eine vorrichtungstechnisch besonders einfach aufgebaute, kompakte sowie hinsichtlich der Strahlführung des Laserstrahls und der Ausbildung des Verbindungsbereichs optimierte Vorrichtung ermöglicht wird. Diese Aufgabe wird erfindungsgemäß bei einer Vorrichtung zum Verschweißen wenigstens einer flexiblen Folienbahn mit den Merkmalen des Anspruchs 1 dadurch gelöst, dass die Einrichtung zum Zusammenführen und gegeneinander in Kontaktbringen der Folienbahnabschnitte zwei zusammenwirkende Siegelelemente aufweist, dass wenigstens eines der Siegelelemente für den wenigstens einen Laserstrahl zumindest bereichsweise durchlässig ist, und dass der wenigstens eine Laserstrahl durch das für den Laserstrahl zumindest bereichsweise durchlässige Siegelelement in den Verbindungsbereich, vorzugsweise in einer zumindest im Wesentlichen senkrecht zur Ebene der Folienbahn angeordneten Richtung, einleitbar ist. Durch eine derartige Ausbildung wird insbesondere der Vorteil erzielt, dass eine mit einer definierten Anlagekraft bzw. Presskraft ausgebildete Siegeleinrichtung erzielt wird, wobei im Bereich der Siegeleinrichtung der Laserstrahl in das Material der Folienbahn eindringt, und wobei durch die Siegeleinrichtung eine definierte Geometrie und Anordnung des Verbindungsbereichs erzielt wird, wodurch die Einkopplung des Laserstrahls in das Material der Folienbahn(en) hochgenau erfolgen kann. Based on the illustrated prior art, the present invention seeks to further develop a device for welding at least one flexible sheet according to the preamble of claim 1 such that a device of particularly simple construction, compact and with respect to the beam guidance of the laser beam and the formation of the connection area optimized device is enabled. This object is achieved in a device for welding at least one flexible film web with the features of claim 1, characterized in that the means for merging and against each other in contacting the film web sections two cooperating sealing elements that at least one of the sealing elements for at least one laser beam at least partially is permeable, and that the at least one laser beam can be introduced into the connection region, preferably in a direction at least substantially perpendicular to the plane of the film web, by the sealing element which is at least partially permeable to the laser beam. By such a design, the advantage is achieved, in particular, that a sealing device designed with a defined contact force or pressing force is achieved, wherein in the region of the sealing device the laser beam penetrates into the material of the film web, and whereby by the sealing device a defined geometry and arrangement of the connecting region is achieved, whereby the coupling of the laser beam in the material of the film web (s) can be done with high accuracy.
Vorteilhafte Weiterbildungen der erfindungsgemäßen Vorrichtung zum Verschweißen wenigstens einer flexiblen Folienbahn sind in den Unteransprüchen aufgeführt. Advantageous developments of the device according to the invention for welding at least one flexible film web are listed in the subclaims.
Insbesondere zur Erzeugung von Quernähten und Längsnähten bei Schlauchbeutelpackungen ist es wünschenswert, das Aufschmelzen des Materials der wenigstens einen Folienbahn in einem linienförmigen Bereich erfolgen zu lassen. Hierzu sind verschiedenste Ausführungsformen denkbar, die eine derartige, linienförmige Erwärmung und somit auch eine linienförmige Schweißnaht erzeugen. In einer ersten Variante einer derartigen Ausbildung ist es vorgesehen, dass die wenigstens eine Laserstrahlquelle zur Ausbildung mehrerer, separater Laserstrahlen ausgebildet ist, und dass die Laserstrahlen mittels wenigstens eines optischen Elements derart ausgerichtet und/oder formbar sind, dass sie im Verbindungsbereich eine durchgängige Schweißnaht erzeugen. Unter „Laserstrahlquelle“ kann dabei sowohl eine einzige Laserstrahlquelle verstanden werden, die durch Auskoppelung verschiedener Teilbereiche des Laserstrahls mehrere, separate Laserstrahlen zur Verfügung stellt, oder aber eine Vielzahl von Laserstrahlquellen derart, dass jede der Laserstrahlquellen einen separaten Laserstrahl erzeugt. Eine derartige Ausbildung, bei der zwar einerseits eine durchgängige Schweißnaht erzeugt wird, andererseits die einzelnen Teilbereiche der Schweißnaht jedoch durch separate Laserstrahlen erzeugt werden hat darüber hinaus den besonderen Vorteil, dass beispielsweise beim Auftreten von Lagensprüngen, wie sie typischerweise bei der Ausbildung von Quernähten vorkommen, durch eine entsprechende Ausbildung und/oder Anordnung der einzelnen Laserstrahlen, derart, dass unterschiedliche Energiemengen in die unterschiedlichen Teilbereiche entsprechend der unterschiedlichen Lagenanzahl der Folienbahnen angebracht werden kann, eine hinsichtlich der thermischen Belastung und Festigkeit optimierte Schweißnaht erzeugt werden kann. In particular for the production of transverse seams and longitudinal seams in tubular bag packages, it is desirable to allow the material of the at least one film web to be melted in a linear area. For this purpose, various embodiments are conceivable that produce such a linear heating and thus also a line-shaped weld. In a first variant of such a design it is provided that the at least one laser beam source is designed to form a plurality of separate laser beams, and that the laser beams are aligned and / or formable by means of at least one optical element such that they produce a continuous weld seam in the connection region , The term "laser beam source" can be understood to mean both a single laser beam source which provides a plurality of separate laser beams by decoupling different partial areas of the laser beam or a multiplicity of laser beam sources such that each of the laser beam sources generates a separate laser beam. Such a design, in which on the one hand, a continuous weld is generated, on the other hand, the individual portions of the weld, however, be generated by separate laser beams also has the particular advantage that, for example, the occurrence of layer jumps, such They typically occur in the formation of transverse seams, by a corresponding formation and / or arrangement of the individual laser beams, such that different amounts of energy can be mounted in the different sub-areas corresponding to the different number of layers of the film webs, produced with respect to the thermal load and strength optimized weld can be.
In alternativer Ausgestaltung der Vorrichtung kann es vorgesehen sein, dass die wenigstens eine Laserstrahlquelle zur Ausbildung eines einzigen Laserstrahls ausgebildet ist, und dass der Laserstrahl durch wenigstens ein optisches Element derart geformt wird, dass er im Verbindungsbereich eine längliche Form aufweist. In der Praxis bedeutet dies, dass es durch ein entsprechendes optisches Element bzw. eine Fokussierlinse ermöglicht wird, den üblicherweise in dem Eintrittsbereich in das optische Element runden Laserstrahl derart umzuformen, dass ein länglicher Laserstrahl im Verbindungsbereich erzeugt wird. In an alternative embodiment of the device, it can be provided that the at least one laser beam source is designed to form a single laser beam, and that the laser beam is formed by at least one optical element such that it has an elongated shape in the connection region. In practice, this means that it is possible by means of a corresponding optical element or a focusing lens to transform the laser beam, which is usually round in the entry region into the optical element, in such a way that an elongate laser beam is generated in the connection region.
In wiederum alternativer Ausgestaltung der Erfindung kann es vorgesehen sein, dass die wenigstens eine Laserstrahlquelle zur Ausbildung eines einzigen Laserstrahls ausgebildet ist, und dass der Laserstrahl zumindest mittelbar durch eine Scanneroptik entlang des Verbindungsbereichs bewegbar ist. Eine derartige Ausgestaltung hat zwar durch die Scanneroptik einen ggf. erhöhten vorrichtungstechnischen Aufwand zur Folge, hat jedoch den Vorteil, dass durch die Scanneroptik beliebige Nahtformen und, abhängig von der Bewegung der Scanneroptik, unterschiedliche Energieeinträge in die Schweißnaht ermöglicht werden, so dass eine derartige Ausführungsform ebenfalls besonders bevorzugt bei der Verwendung zur Erzeugung von Quernähten mit Lagensprüngen angewandt werden kann. In yet an alternative embodiment of the invention, it can be provided that the at least one laser beam source is designed to form a single laser beam, and that the laser beam is movable at least indirectly through a scanner optics along the connection region. Although such an embodiment has the scanner optics possibly increased device complexity result, but has the advantage that the scanner optics arbitrary seam shapes and, depending on the movement of the scanner optics, different energy inputs are made possible in the weld, so that such an embodiment also particularly preferably when used for the production of transverse seams with layer jumps can be applied.
In einer ersten konstruktiven Ausgestaltung der Siegelelemente sind diese vorzugsweise blockförmig ausgebildet. Das bedeutet, dass zum Erzeugen einer Schweißnaht einer bestimmten Länge im Bereich der Siegelbacken die Packstoffbahn(en) zwischen den beiden Siegelelementen mit insbesondere gleichmäßigem Anpressdruck gegeneinander gedrückt werden. Derartige, blockförmige Elemente eignen sich insbesondere bei der getakteten Herstellung von Siegelnähten, d.h. insbesondere bei der Herstellung von Quernähten an Schlauchbeutelpackungen.In a first structural embodiment of the sealing elements, these are preferably formed block-shaped. This means that for producing a weld seam of a certain length in the region of the sealing jaws, the packaging material web (s) between the two sealing elements are pressed against one another with a particularly uniform contact pressure. Such block-shaped elements are particularly useful in the timed production of seal seams, i. in particular in the production of cross-seams on tubular bag packages.
Um ein problemloses Weiterfördern des Packstoffschlauchs bei der Herstellung von Quernähten unter Verwendung der blockförmigen Elemente zu erzielen, ist es bevorzugt vorgesehen, dass wenigstens eines der Siegelelemente in einer Ebene senkrecht zu der Folienbahn beweglich angeordnet ist. Wenn beide Siegelelemente beweglich angeordnet sind hat dies den Vorteil, dass der Bewegungshub an den beiden Siegelelementen jeweils relativ gering ausfallen kann, so dass relativ kurze Taktzeiten und somit eine hohe Leistung der Vorrichtung erzielbar ist. Nachteilig dabei kann es jedoch sein, dass je nach Ausbildung der Laserstrahleinrichtung ein erhöhter vorrichtungstechnischer Aufwand erforderlich ist. In order to achieve a problem-free further conveying of the packaging material tube in the production of transverse seams using the block-shaped elements, it is preferably provided that at least one of the sealing elements is arranged to be movable in a plane perpendicular to the film web. If both sealing elements are arranged to be movable, this has the advantage that the movement stroke on the two sealing elements can each be relatively small, so that relatively short cycle times and thus high performance of the device can be achieved. The disadvantage here, however, may be that, depending on the design of the laser beam device, an increased device complexity is required.
In alternativer Ausgestaltung der Vorrichtung, die sich insbesondere zur Erzeugung von Längsnähten bei kontinuierlicher Fertigung der Längsnähte eignet, wird vorgeschlagen, dass wenigstens eines der beiden Siegelelemente in Form einer in einer parallel zu der Folienbahn in einer Drehachse drehbaren Siegelrolle ausgebildet ist.In an alternative embodiment of the device, which is particularly suitable for the production of longitudinal seams in continuous production of the longitudinal seams, it is proposed that at least one of the two sealing elements is designed in the form of a sealing roll which can rotate in a rotation axis parallel to the film web.
Ganz besonders bevorzugt bei der letztgenannten Ausführungsvariante ist es, wenn beide Siegelelemente als Siegelrollen ausgebildet sind.Very particularly preferred in the latter embodiment is when both sealing elements are designed as sealing rolls.
Eine weitere Ausgestaltung der Erfindung, die sowohl bei den angesprochenen blockförmigen Siegelelementen, als auch bei den Siegelelementen in Form einer Siegelrolle verwendet werden kann sieht vor, dass das wenigstens eine optische Element in dem für den wenigstens einen Laserstrahl durchlässigen Siegelelement integral angeordnet ist. Dadurch wird ein besonders kompakter und mechanisch robuster Aufbau der Vorrichtung ermöglicht.A further embodiment of the invention, which can be used both in the mentioned block-shaped sealing elements, as well as the sealing elements in the form of a sealing roller provides that the at least one optical element is integrally disposed in the permeable to the at least one laser beam sealing element. This allows a particularly compact and mechanically robust construction of the device.
Insbesondere ist es dabei vorgesehen, dass das für den Laserstrahl zumindest bereichsweise durchlässige Siegelelement zumindest teilweise aus Glas besteht. Eine derartige Ausbildung ermöglicht es insbesondere relativ einfach, durch entsprechende Schliffe bzw. Anordnung optischer Elemente innerhalb des Glaskörpers das optische Element auszubilden.In particular, it is provided that the at least partially permeable sealing element for the laser beam consists at least partially of glass. Such a design makes it possible in particular relatively easy to form the optical element by appropriate grinding or arrangement of optical elements within the glass body.
Um einerseits einen optimierten Wirkungsgrad der Vorrichtung zu erzielen, bei der möglichst die gesamte Wärmeenergie in den Verbindungsbereich einstrahlt, und andererseits die Erwärmung des nicht der Durchleitung des Laserstrahls dienenden Siegelelements zu vermeiden wird vorgeschlagen, dass ein für den wenigstens einen Laserstrahl nicht durchlässige Siegelelement für den wenigstens einen Laserstrahl reflektierend ausgebildet ist.On the one hand to achieve an optimized efficiency of the device in which as far as possible the entire heat energy radiates into the connection area, and on the other hand to avoid the heating of the non-passing the laser beam serving sealing element is proposed that a non-permeable to the at least one laser beam sealing element for the at least one laser beam is formed reflecting.
Eine weitere, vorteilhafte Ausgestaltung der Erfindung sieht vor, dass beide Siegelelemente identisch ausgebildet sind. Mit anderen Worten gesagt bedeutet dies, dass die wenigstens eine Packstoffbahn von beiden Seiten her von wenigstens einem Laserstrahl erwärmt wird. Eine derartige Ausführungsform hat den Vorteil, dass die thermische Belastung der Folienbahn(en) bei einer bestimmten Taktzeit minimiert werden kann, da die zum Aufschmelzen der Folienbahn(en) erforderliche Energie gleichzeitig von beiden Seiten in den Verbindungsbereich eingebracht werden kann, wodurch die in die Folienbahn(en) von einer Seite her eingebrachte Energie relativ gehalten werden kann. Darüber hinaus werden ggf. Verzugserscheinungen durch unterschiedliche Erwärmungen der beiden Folienbahnseiten vermieden. Eine derartige Ausführungsform ist insofern insbesondere hinsichtlich der verwendbaren Folienmaterialien und der Variabilität hinsichtlich der Materialstärke besonders vorteilhaft einsetzbar.A further advantageous embodiment of the invention provides that both sealing elements are identical. In other words, this means that the at least one packaging material web is heated from both sides by at least one laser beam. Such an embodiment has the advantage that the thermal load of the film web (s) can be minimized at a certain cycle time, since the energy required to melt the film web (s) can be introduced simultaneously from both sides in the connection area, whereby the energy introduced into the film web (s) from one side can be kept relatively. In addition, possibly distortion symptoms are avoided by different heating of the two film web pages. Such an embodiment is particularly advantageous in particular with regard to the usable film materials and the variability in terms of material thickness.
Eine weitere, besonders bevorzugte Ausgestaltung der Vorrichtung sieht vor, dass der wenigstens eine Laserstrahl zusätzlich zum Trennen der Folienbahn ausgebildet ist. Eine derartige Ausbildung des Laserstrahls wird beispielsweise durch eine zeitweilige Erhöhung der Laserstrahlleistung nach dem Verschweißen ermöglicht, wobei es insbesondere vorgesehen sein kann, dass durch eine entsprechende Optik oder eine entsprechende Bewegung des Laserstrahls die Schnittbreite des Laserstrahls deutlich geringer ist als die Breite der Schweißnaht. Dadurch eignet sich eine derartige Vorrichtung insbesondere zur Ausbildung von Quernähten an Schlauchbeutelpackungen, so dass auf separate, insbesondere mechanisch arbeitende Trennmesser verzichtet werden kann. Eine derartige Anordnung ermöglicht es daher insbesondere auch einen besonders kompakten und vorrichtungstechnisch vorteilhaften Aufbau einer kombinierten Quernahtsiegel- und Trenneinrichtung zu realisieren. A further, particularly preferred embodiment of the device provides that the at least one laser beam is additionally designed for separating the film web. Such a design of the laser beam is made possible, for example, by a temporary increase in the laser beam power after welding, wherein it may be provided in particular that the cutting width of the laser beam is significantly smaller than the width of the weld by a corresponding optics or a corresponding movement of the laser beam. As a result, such a device is particularly suitable for the formation of transverse seams on tubular bag packages, so that it is possible to dispense with separate, in particular mechanically operating, separating blades. Such an arrangement therefore makes it possible, in particular, to realize a particularly compact and device-technically advantageous construction of a combined cross-seam-sealing and separating device.
Wie bereits oben erläutert, weisen insbesondere Quernähte bei Schlauchbeutelpackungen Lagensprünge auf, d.h., dass beispielsweise eine gegen eine flache Seite der Schlauchbeutelpackung umgelegte Längsnaht im Bereich einer Quernahtsiegeleinrichtung eine Erhöhung der Lagenanzahl von zwei auf vier Lagen zur Folge hat. Bei konventionellen Quernahtsiegeleinrichtungen unter Verwendung insbesondere von beheizten Siegelbacken ist es daher erforderlich, durch einen entsprechenden Pressdruck sowie eine entsprechende Wärmeeinleitung dafür Sorge zu tragen, dass auch im Bereich der vier Lagen dichte Quernähte erzeugt werden. Ein derartig hoher Energieeintrag bzw. eine derartig hohe Presskraft ist jedoch hinsichtlich der Bereiche der Quersiegelnaht überdimensioniert, in denen beispielsweise lediglich zwei Lagen an Folienmaterial vorhanden sind. Daher ist es in einer bevorzugten Ausgestaltung der Erfindung, die sich insbesondere zum Ausbilden derartiger Quernähte eignet vorgesehen, dass der wenigstens eine Laserstrahl und/oder das wenigstens eine optische Element derart ausgebildet sind/ist, dass entlang des Verbindungsbereichs unterschiedliche Energiemengen einleitbar sind. Das bedeutet, dass mit Blick auf das eben beschriebene Ausführungsbeispiel beispielsweise in dem Bereich der Quersiegelnaht, in dem vier Lagen vorhanden sind, die doppelte Energiemenge eingekoppelt wird wie in dem Bereich oder den Bereichen, in denen lediglich zwei Lagen vorhanden sind. As already explained above, in particular transverse seams in tubular bag packages have discontinuities, that is, for example, a longitudinal seam folded in the region of a cross-seam sealing device against a flat side of the tubular bag package results in an increase in the number of layers from two to four layers. In conventional cross-seam-sealing devices, in particular using heated sealing jaws, it is therefore necessary to ensure, by means of a corresponding pressing pressure and a corresponding introduction of heat, that dense transverse seams are produced even in the region of the four layers. However, such a high energy input or such a high pressing force is oversized with respect to the regions of the transverse sealing seam in which, for example, only two layers of film material are present. It is therefore provided in a preferred embodiment of the invention, which is suitable in particular for forming such transverse seams, that the at least one laser beam and / or the at least one optical element is / are designed such that different amounts of energy can be introduced along the connection region. This means that in view of the embodiment just described, for example, in the region of the transverse sealing seam in which four layers are present, twice the amount of energy is coupled in as in the region or regions in which only two layers are present.
Ganz besonders ist der Einsatz einer insoweit beschriebenen erfindungsgemäßen Vorrichtung zum Verschweißen wenigstens einer flexiblen Folienbahn bei Schlauchbeutelmaschinen zum Herstellen von Schlauchbeutelpackungen, wobei derartige Schlauchbeutelmaschinen eine Schlauchformeinrichtung, eine Quernaht- und eine Längsnahtsiegeleinrichtung umfassen. Die erfindungsgemäße Vorrichtung kann hierbei sowohl im Bereich der Quernaht- als auch im Bereich der Längsnahtsiegeleinrichtung angeordnet sein. Very particular is the use of a device according to the invention so far described for welding at least one flexible film web in tubular bag machines for producing tubular bag packages, such bagging machines include a tube forming device, a cross-seam and a longitudinal seam sealing device. In this case, the device according to the invention can be arranged both in the region of the transverse seam and in the region of the longitudinal seam sealing device.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnung.Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawing.
Diese zeigt in:This shows in:
Gleiche Elemente bzw. Elemente mit gleicher Funktion sind in den Figuren mit den gleichen Bezugsziffern versehen.The same elements or elements with the same function are provided in the figures with the same reference numerals.
In der
Die Schlauchbeutelmaschine
Im Bereich der Formschulter
Ergänzend wird erwähnt, dass die soweit beschriebene Schlauchbeutelmaschine
Erfindungsgemäß ist es vorgesehen, dass die Schlauchbeutelmaschine
Bei dem in der
Erfindungsgemäß ist es vorgesehen, dass die Vorrichtung
Zur Erzeugung der Quernähte
Das Erzeugen der Quernähte
Die in der
Die in den
Die Vorrichtung
Die Vorrichtung
Die Vorrichtung
Die Vorrichtung
Bei den Vorrichtungen
Die soweit beschriebenen Vorrichtung
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 3813570 A1 [0002] DE 3813570 A1 [0002]
- EP 1987944 B1 [0003] EP 1987944 B1 [0003]
Claims (15)
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DE102013210284.4A DE102013210284A1 (en) | 2013-06-04 | 2013-06-04 | Device for welding at least one flexible film web and tubular bag machine |
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DE102013210284.4A DE102013210284A1 (en) | 2013-06-04 | 2013-06-04 | Device for welding at least one flexible film web and tubular bag machine |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019005742B4 (en) | 2019-08-16 | 2023-09-28 | Diehl Aviation Laupheim Gmbh | Method and tool for producing a thermoplastic pipe |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3813570A1 (en) | 1988-04-22 | 1989-11-09 | Fraunhofer Ges Forschung | METHOD FOR JOINING WORKPIECES FROM REFLOWABLE MATERIAL WITH LASER RADIATION |
EP1987944B1 (en) | 2007-05-04 | 2012-07-25 | Leister Technologies AG | Transmission laser welding device and process for joining plastic parts |
-
2013
- 2013-06-04 DE DE102013210284.4A patent/DE102013210284A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3813570A1 (en) | 1988-04-22 | 1989-11-09 | Fraunhofer Ges Forschung | METHOD FOR JOINING WORKPIECES FROM REFLOWABLE MATERIAL WITH LASER RADIATION |
EP1987944B1 (en) | 2007-05-04 | 2012-07-25 | Leister Technologies AG | Transmission laser welding device and process for joining plastic parts |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019005742B4 (en) | 2019-08-16 | 2023-09-28 | Diehl Aviation Laupheim Gmbh | Method and tool for producing a thermoplastic pipe |
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