DE19517616A1 - Vorrichtung zum Verbinden zweier Packstoffbahnen - Google Patents

Vorrichtung zum Verbinden zweier Packstoffbahnen

Info

Publication number
DE19517616A1
DE19517616A1 DE19517616A DE19517616A DE19517616A1 DE 19517616 A1 DE19517616 A1 DE 19517616A1 DE 19517616 A DE19517616 A DE 19517616A DE 19517616 A DE19517616 A DE 19517616A DE 19517616 A1 DE19517616 A1 DE 19517616A1
Authority
DE
Germany
Prior art keywords
packaging material
material web
heating
roller
preheating device
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.)
Ceased
Application number
DE19517616A
Other languages
English (en)
Inventor
Horst Scheifele
Eberhard Dipl Ing Krieger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE19517616A priority Critical patent/DE19517616A1/de
Priority to JP8533655A priority patent/JPH10503154A/ja
Priority to US08/765,698 priority patent/US5806277A/en
Priority to EP96911922A priority patent/EP0770018A1/de
Priority to PCT/DE1996/000724 priority patent/WO1996035615A1/de
Publication of DE19517616A1 publication Critical patent/DE19517616A1/de
Ceased legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/004Preventing sticking together, e.g. of some areas of the parts to be joined
    • B29C66/0042Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined
    • B29C66/0044Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined using a separating sheet, e.g. fixed on the joining tool
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14Joining 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
    • B29C65/1429Joining 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 characterised by the way of heating the interface
    • B29C65/1432Joining 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 characterised by the way of heating the interface direct heating of the surfaces to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14Joining 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
    • B29C65/1429Joining 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 characterised by the way of heating the interface
    • B29C65/1464Joining 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 characterised by the way of heating the interface making use of several radiators
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/72Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by combined operations or combined techniques, e.g. welding and stitching
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/02Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/024Thermal pre-treatments
    • B29C66/0242Heating, or preheating, e.g. drying
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint 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
    • B29C66/112Single lapped joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B29C66/53461Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/814General 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 design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141General 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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427General 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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/814General 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 design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141General 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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431General 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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/82Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822Transmission mechanisms
    • B29C66/8221Scissor or lever mechanisms, i.e. involving a pivot point
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834General 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
    • B29C66/8341Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411Roller, cylinder or drum types
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834General 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
    • B29C66/8341Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411Roller, cylinder or drum types
    • B29C66/83413Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834General 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
    • B29C66/8341Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411Roller, cylinder or drum types
    • B29C66/83415Roller, cylinder or drum types the contact angle between said rollers, cylinders or drums and said parts to be joined being a non-zero angle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834General 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
    • B29C66/8351Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83511Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/84Specific machine types or machines suitable for specific applications
    • B29C66/849Packaging machines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/87Auxiliary operations or devices
    • B29C66/874Safety measures or devices
    • B29C66/8744Preventing overheating of the parts to be joined, e.g. if the machine stops or slows down
    • B29C66/87443Preventing overheating of the parts to be joined, e.g. if the machine stops or slows down by withdrawing the heating tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/91Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91421Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/91Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91431Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being kept constant over time
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/91Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • B29C66/91641Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time
    • B29C66/91643Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time following a heat-time profile
    • B29C66/91645Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time following a heat-time profile by steps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10Applying or generating heat or pressure or combinations thereof
    • B65B51/16Applying or generating heat or pressure or combinations thereof by rotary members
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00Enclosing 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
    • B65B9/02Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/04Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material
    • B65B9/045Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material for single articles, e.g. tablets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/814General 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 design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141General 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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411General 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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421General 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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81423General 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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/91Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91421Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools
    • B29C66/91423Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools using joining tools having different temperature zones or using several joining tools with different temperatures
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/91Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B29C66/9192Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
    • B29C66/91921Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
    • B29C66/91931Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature in explicit relation to the fusion temperature or melting point of the material of one of the parts to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2023/00Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10Polymers of propylene
    • B29K2023/12PP, i.e. polypropylene
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2305/00Use of metals, their alloys or their compounds, as reinforcement
    • B29K2305/02Aluminium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/712Containers; Packaging elements or accessories, Packages
    • B29L2031/7162Boxes, cartons, cases
    • B29L2031/7164Blister packages
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10Applying or generating heat or pressure or combinations thereof
    • B65B2051/105Heat seal temperature control
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702For plural parts or plural areas of single part
    • Y10T156/1712Indefinite or running length work
    • Y10T156/1741Progressive continuous bonding press [e.g., roll couples]

Description

Stand der Technik
Die Erfindung geht aus von einer Vorrichtung zum Verbinden zweier Packstoffbahnen nach dem Oberbegriff des Anspruchs 1. Derartige bekannte Vorrichtungen werden insbesondere zum Versiegeln einer aus thermoplastischem Material bestehenden, und mit Näpfen für Tabletten, Dragees o.a. versehenen Kunststoffbahn mit einer Deckfolie verwendet. Um die zum Versiegeln notwendige Temperatur bei schwierig zu verarbeitenden Deckfolien zu erreichen ist es bekannt, zusätzlich zu einer Heizwalze eine vor der Heizwalze angeordnete Vorwärmeinrichtung für die Deckfolie anzuordnen. Diese Vorwärmeinrichtung besteht beispielsweise aus zwei elektrisch beheizbaren ebenen Platten, die nahe der Ober­ bzw. Unterseite der Deckfolie angeordnet sind, und diese durch Strahlungswärme erwärmen.
In der Praxis hat es sich gezeigt, daß derartige Vorwärmeinrichtungen unter Umständen nicht zufriedenstellend arbeiten, d. h., daß eine dichte Siegelung nicht gewährleistet ist. Unter schwierig zu verarbeitenden Deckfolien sind beispielsweise besonders gut wiederverwertbare Deckfolien zu verstehen, oder solche, die besondere funktionelle Eigenschaften besitzen. Das betrifft insbesondere sogenannte "Peal-off" Deckfolien, die einerseits eine dichte Verbindung zur Kunststoffbahn, und andererseits ein einfaches manuelles Abschälen der Deckfolie von der Kunststoffbahn ermöglichen sollen.
Vorteile der Erfindung
Die erfindungsgemäße Vorrichtung zum Verbinden zweier Packstoffbahnen mit den kennzeichnenden Merkmalen des Anspruchs 1 hat demgegenüber den Vorteil, daß auch schwierig zu verarbeitende Deckfolienmaterialien sicher und zuverlässig verarbeitet werden können, so daß stets dichte Siegelungen mit der Kunststoffunterbahn entstehen. Dies wird erfindungsgemäß durch eine besondere Ausbildung der Vorheizeinrichtung erzielt, deren Heizkeil nahe bis an den Kontaktbereich von Heiz- und Siegelrolle heranreicht.
Weitere Vorteile und vorteilhafte Weiterbildungen der erfindungsgemäßen Vorrichtung ergeben sich aus den Unteransprüchen und der Beschreibung. Eine besonders gute Verbindung der beiden Packstoffbahnen läßt sich erzielen, wenn dem Heizkeil eine zweite, an sich bekannte, plattenförmige Vorwärmeinrichtung vorgeschaltet ist. Zusätzlich oder anstelle dieser plattenförmigen Vorwärmeinrichtung kann jedoch auch die Siegelwalze beheizbar ausgebildet sein. Durch eine separate Temperaturregelung der Siegelwalze und des Heizkeils läßt sich der Siegelvorgang besonders gut dem Material der Kunststoffbodenbahn anpassen. Durch eine spezielle Anordnung des Heizkeils kann ferner ein Anhaften der Deckfolie am Heizkeil verhindert werden. Deshalb kann der Heizkeil vorteilhafterweise auch mit Temperaturen nahe oder über dem Schmelzpunkt der Deckfolie betrieben werden. Durch die damit verbundene Strahlungswärme des Heizkeils ist es möglich, besonders viel Wärmeenergie auf die Deckfolie zu übertragen.
Die Siegelqualität kann zusätzlich verbessert werden, wenn die Strahlungswärme des Heizkeils auch auf die Kunststoffbodenbahn einwirkt. Durch eine separate Regelung der Temperaturen des Heizkeils, der Vorwärmeinrichtung und ggf. der Siegelwalze ist es möglich, die Vorrichtung an das jeweilige Deckfolienmaterial optimal anzupassen. Bestehende Vorheizeinrichtungen können durch den Anbau des Heizkeils relativ einfach modifiziert werden. Durch die starre Verbindung des Heizkeils mit der Vorheizeinrichtung ist es möglich, ein mechanisch besonders einfaches Wegschwenken der gesamten Heizeinrichtung, beispielsweise bei einer Produktionspause, zu erzielen.
Zeichnung
Zwei Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden in der nachfolgenden Beschreibung näher erläutert. Es zeigen die Fig. 1 eine Vorrichtung zum Verbinden zweier Packstoffbahnen vereinfacht im Längsschnitt während zweier Betriebsphasen, und die Fig. 2 ein abgewandeltes Ausführungsbeispiel nach Fig. 1 ebenfalls im Längsschnitt.
Beschreibung der Ausführungsbeispiele
Eine Vorrichtung 10 zum Verbinden zweier Packstoffbahnen 11, 12 hat eine um eine Achse 13 schwenkbare Heizwalze 15 und eine mit der Heizwalze 15 zusammenwirkende, angetriebene Siegelwalze 16. Im Berührungsbereich 17 der beiden Walzen 15, 16 werden die beiden als Bodenfolie 11 und Deckfolie 12 bezeichnenden Packstoffbahnen unter Einwirkung von Wärme und Druck auf an sich bekannte Art und Weise miteinander verbunden bzw. verschweißt.
In die aus thermoplastischem Material bestehende Bodenfolie 11 wurden an einer vorhergehenden, nicht dargestellten ersten Station Näpfe 18 eingeformt, die anschließend an einer zweiten Station beispielsweise mit Tabletten befüllt wurden. Zum Transport der Bodenfolie 11 weist die Siegelwalze 16 an ihrem Umfang den Näpfen 18 angepaßte Ausnehmungen 19 auf. Die Deckfolie 12 besteht beispielsweise aus Aluminium oder aus einem Kunststoffmaterial, beispielsweise Polypropylen.
Zum Erwärmen der Deckfolie 12 auf die erforderliche Siegeltemperatur dient neben der Heizwalze 15 eine mit der Heizwalze 15 zusammenwirkende Vorwärmeinrichtung 20. Die Vorwärmeinrichtung 20 hat zwei in Deckung mit der Unter- bzw. Oberseite 22 und 23 der Deckfolie 12 in geringem Abstand angeordnete Heizplatten 24, 25. Die auf die Oberseite 23 einwirkende Heizplatte 25 ist vorteilhafterweise zum Wegschwenken um die Achse 13 mit der Heizwalze 15 verbunden. Die weggeschwenkte Position der Heizwalze 15 und der Heizplatte 25 ist in der Fig. 1 strichpunktiert eingezeichnet. Um eine möglichst gleichmäßige Erwärmung der Oberseite 23 der Deckfolie 12 zu erzielen, ist die der Heizwalze 15 zugewandte Stirnfläche 27 der Heizplatte 25 der Heizwalze 15 formschlüssig angepaßt, so daß zwischen der Heizplatte 25 und der Heizwalze 15 nahezu kein Spalt vorhanden ist. Die der Unterseite 22 der Deckfolie 12 zugewandte Heizplatte 24 reicht bis etwa in die Höhe, in der die Deckfolie 12 an der Heizwalze 15 anliegt. An das der Siegelwalze 16 zugewandte Ende 28 der Heizplatte 24 schließt sich direkt ein als Vorheizelement ausgebildeter, separat beheizbarer Heizkeil 30 an, der nahezu bis in den Kontaktbereich 17 der beiden Walzen 15, 16 reicht.
Der Heizkeil 30, der in etwa die gleiche Dicke wie die Heizplatte 24 besitzt, ist mit der Heizplatte 24 verbunden. Während Produktionspausen sind Heizplatte 24 und Heizkeil 30 gemeinsam von der Heiz- bzw. Siegelwalze 15 bzw. 16 wegfahrbar, so daß sich ein so großer Abstand zur Boden- bzw. Deckfolie 11 bzw. 12 ergibt, daß diese nicht mehr erwärmt werden. Auch hier ist die weggeschwenkte Position der Heizplatte 24 und des Heizkeils 30 in der Fig. 1 strichpunktiert eingezeichnet.
Die der Deck- bzw. Bodenfolie 12 bzw. 11 zugewandten Heizflächen 32, 33 des Heizkeils 30 sind antihaftbeschichtet und entsprechend der Form der Heiz- und Siegelwalze 15 und 16 jeweils konvex ausgebildet, so daß sich zu der Deck- bzw. Bodenfolie 12 bzw. 11 ein jeweils konstanter Abstand einstellt, wobei dieser Abstand größer ist als der Abstand der Heizplatte 24 zur Unterseite 22 der Deckfolie 12.
Um auch eine großflächige Vorwärmung der Bodenfolie 11 erzielen zu können, ist bei einer abgewandelten Form der gestrichelt eingezeichnete Heizkeil 30a parallel zur Oberseite 34 der Bodenfolie 11 verlängert.
Die oben beschriebene Vorrichtung 10 zum Verbinden zweier Packstoffbahnen 11, 12 funktioniert wie folgt: Die Heizungen der Heizwalze 15 sowie der Heizplatten 24, 25 und des Heizkeils 30 bzw. 30a sind getrennt voneinander regelbar. Üblicherweise ist der Heizkeil 30 bzw. 30a dabei auf die höchste Temperatur eingeregelt, die nahe oder sogar höher als der Schmelzpunkt der Deckfolie 12 liegen kann. Durch den Abstand des Heizkeils 30 bzw. 30a von der Deckfolie 12 ist dabei gewährleistet, daß die Deckfolie 12 diese Temperatur jedoch nicht annehmen kann. Dagegen besitzen die beiden als Vorheizung dienenden Heizplatten 24, 25 die geringste Temperatur. Zum Verbinden der beiden Packstoffbahnen 11, 12 wird die Siegelwalze 16 vorzugsweise kontinuierlich angetrieben, wobei der Vorschub der Bodenfolie 11 durch das formschlüssige Anliegen der Näpfe 18 in den Ausnehmungen 19 der Siegelwalze 16 erfolgt. Die durch die beiden Heizplatten 24, 25 und den Heizkeil 30 bzw. 30a vorgewärmte Deckfolie 12 wird dann im Bereich 17 durch die Heizwalze 15 durch Wärme und Druck mit ihrer Unterseite 22 auf die Oberseite der Bodenfolie 11 aufgesiegelt. Durch den Heizkeil 30 bzw. 30a ist sichergestellt, daß die Unterseite 22 der Deckfolie 12 in Förderrichtung betrachtet mit zur Heizwalze 15 hin zunehmender Intensität erwärmt werden kann, so daß sich eine besonders gute Siegelung erzielen läßt. Insbesondere durch die Ausbildung des Heizkeils 30a mit seiner parallel zur Oberseite 34 der Bodenfolie 11 verlängerten Heizfläche 33a wird auch die Bodenfolie 11 vorgewärmt, so daß es zu einer optimalen Verbindung der beiden Packstoffbahnen 11, 12 kommt, wobei die Wärmespannungen zwischen der Bodenfolie 11 und der Deckfolie 12 gering gehalten werden können.
Bei dem Ausführungsbeispiel nach der Fig. 2 wird auf die Vorwärmeinrichtung 20 verzichtet. Statt dessen ist nicht nur die Heizwalze 15, sondern auch die Siegelwalze 16a beheizbar ausgebildet. Damit kann die Temperatur dem Material der Bodenfolie 11 und dem Füllgut angepaßt werden, so daß Beschädigungen der Bodenfolie 11 bzw. des Füllguts vermieden werden. Mit der beheizten Siegelwalze 16a ist es möglich, zusätzlich Wärmeenergie auf die Bodenfolie 11 zu übertragen, was zu einer besseren Siegelung beiträgt. Zusätzlich ist mit der Heizwalze 15 eine zusätzliche Umlenkwalze 35 gekoppelt. Über die Lage der Umlenkwalze 35 zur Heizwalze 15 läßt sich der Umschlingungswinkel α der Deckfolie 12 mit der Heizwalze 15 verändern. Je größer der Umschlingungswinkel α, desto niedriger kann die Temperatur der Heizwalze 15 eingestellt sein, um eine bestimmte Wärmemenge an die Deckfolie 12 abzugeben. Andererseits läßt sich bei einer vorgegebenen Temperatur der Heizwalze 15 bei entsprechend größerem Umschlingungswinkel α besonders viel Wärmeenergie in die Deckfolienbahn 12 übertragen. In der Praxis weist die Heizwalze 15 eine vorgegebene, konstant eingestellte Temperatur auf. Durch eine entsprechende Wahl des Umschlingungswinkels α wird dann sichergestellt, daß die benötigte Wärmeenergie in die Deckfolienbahn 12 übertragen wird.
Ergänzend wird bemerkt, daß es selbstverständlich auch möglich ist, die Vorrichtung gemäß des ersten Ausführungsbeispiels ebenfalls mit einer beheizbaren Siegelwalze 16 auszustatten. Damit lassen sich die Vorteile beider Ausführungsbeispiele miteinander verbinden. Außerdem ist es möglich, bei entsprechendem Material der Bodenfolie 11 auf eine Antihaftbeschichtung der Heizflächen 33, 33a des Heizkeils 30 bzw. 30a zu verzichten. Weiterhin wird darauf hingewiesen, daß die Anwendung der Vorrichtung 10 nicht nur auf die im Ausführungsbeispiel beschriebenen Blisterbahnen beschränkt ist, sondern grundsätzlich auf zwei miteinander zu verbindende Packstoffbahnen übertragbar ist.

Claims (10)

1. Vorrichtung (10) zum Aufsiegeln einer ersten Packstoffbahn (12) auf eine zweite Packstoffbahn (11), mit einer auf die erste Packstoffbahn (12) einwirkenden Heizwalze (15), mit einer mit der Heizwalze (15) zusammenwirkenden Siegelwalze (16, 16a), wobei im Kontaktbereich (17) der beiden Walzen (15, 16, 16a) die beiden Packstoffbahnen (11, 12) unter Einwirkung von Wärme und Druck miteinander verbunden werden, und mit wenigstens einer Vorheizeinrichtung zum Erwärmen der ersten Packstoffbahn (12), dadurch gekennzeichnet, daß die Vorheizeinrichtung (30, 30a) im Anlagebereich der ersten Packstoffbahn (12) mit der Heizwalze (15) angeordnet und der Heizwalze (15) formschlüssig angepaßt ist, daß die Vorheizeinrichtung (30, 30a) zumindest gegen die Unterseite (22) der ersten Packstoffbahn (12) gerichtet ist, und daß die Vorheizeinrichtung (30, 30a) nahe bis an den Kontaktbereich (17) der beiden Walzen (15, 16, 16a) heranragt.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die erste Packstoffbahn (12) über eine lageveränderliche Rolle (35) geführt ist, wobei sich entsprechend der Stellung der Rolle (35) zur Heizwalze (15) ein entsprechender Umschlingungswinkel (α) der ersten Packstoffbahn (12) mit der Heizwalze (15) einstellt.
3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Vorheizeinrichtung (30, 30a) eine auf die Unter- (22) und Oberseite (23) der ersten Packstoffbahn (12) einwirkende, plattenförmige Vorwärmeinrichtung (20) vorgeschaltet ist.
4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Siegelwalze (16, 16a) beheizbar ausgebildet ist.
5. Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß die der Unterseite (22) der ersten Packstoffbahn (12) zugewandte Fläche (32) der Vorheizeinrichtung (30, 30a) einen größeren Abstand zur Unterseite (22) der ersten Packstoffbahn (12) aufweist als die entsprechende Fläche der Vorwärmeinrichtung (20).
6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Vorheizeinrichtung (30, 30a) zumindest auf der der ersten Packstoffbahn (12) zugewandten Fläche (32) eine Temperatur aufweist, die nahe oder über der Schmelztemperatur der ersten Packstoffbahn (12) liegt.
7. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß eine zweite Fläche (33) der Vorheizeinrichtung (30, 30a) auf die zweite Packstoffbahn (11) einwirkt.
8. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Vorheizeinrichtung (30a) im Bereich der Oberseite (34) der zweiten Packstoffbahn (11) verlängert ausgebildet ist.
9. Vorrichtung nach einem der Ansprüche 3 bis 8, dadurch gekennzeichnet, daß die Vorheizeinrichtung (30, 30a) zusammen mit einem Teil (24) der Vorwärmeinrichtung (20) von den Packstoffbahnen (11, 12) wegschwenkbar angeordnet ist.
10. Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die erste Packstoffbahn eine Deckfolie (12), und die zweite Packstoffbahn eine mit Näpfen (19) ausgebildete Bodenfolie (11) ist.
DE19517616A 1995-05-13 1995-05-13 Vorrichtung zum Verbinden zweier Packstoffbahnen Ceased DE19517616A1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE19517616A DE19517616A1 (de) 1995-05-13 1995-05-13 Vorrichtung zum Verbinden zweier Packstoffbahnen
JP8533655A JPH10503154A (ja) 1995-05-13 1996-04-25 2つの包装材ウエブを接続するための装置
US08/765,698 US5806277A (en) 1995-05-13 1996-04-25 Apparatus for joining two strips of packaging material
EP96911922A EP0770018A1 (de) 1995-05-13 1996-04-25 Vorrichtung zum verbinden zweier packstoffbahnen
PCT/DE1996/000724 WO1996035615A1 (de) 1995-05-13 1996-04-25 Vorrichtung zum verbinden zweier packstoffbahnen

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JP (1) JPH10503154A (de)
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DE19539873A1 (de) * 1995-10-26 1997-04-30 Rovema Gmbh Vorrichtung und Verfahren zur Verschweißung einer Verpackung oder eines Verpackungsmaterials
DE29700628U1 (de) * 1997-01-16 1997-09-04 Wittmaier Klaus Vorrichtung zum Applizieren eines endlosen Streifens auf einer Endlosbahn
DE10023590A1 (de) * 2000-05-13 2001-11-15 Bosch Gmbh Robert Verfahren und Vorrichtung zum Herstellen von Blisterbahnen
DE10347777B3 (de) * 2003-10-15 2004-12-23 Uhlmann Pac-Systeme Gmbh & Co. Kg Verfahren und Vorrichtung zum Siegeln einer Blisterfolie mit einer Deckfolie
EP1632334A2 (de) * 2004-09-06 2006-03-08 UHLMANN PAC-SYSTEME GmbH & Co. KG Vorrichtung zum Siegeln
DE102015114020A1 (de) * 2015-08-24 2017-03-02 Spilker Gmbh Vorrichtung und Verfahren zum Herstellen von Verpackungen
CN111619896A (zh) * 2019-02-28 2020-09-04 莫迪维克西普哈根牧勒股份及两合公司 操作包装机的方法
DE102019217649A1 (de) * 2019-11-15 2021-05-20 Multivac Sepp Haggenmüller Se & Co. Kg Folienvorheizsystem

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ITBO20030735A1 (it) * 2003-12-05 2005-06-06 Roberto Conti Apparecchiatura per la formazione di cialde per prodotti da infusione
KR100550563B1 (ko) * 2004-01-27 2006-02-10 엘지전자 주식회사 플라즈마 패널 그린 시트 소성 장치 및 소성 방법
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EP2664441B1 (de) * 2012-05-14 2014-08-13 UHLMANN PAC-SYSTEME GmbH & Co. KG Vorrichtung zum Walzensiegeln von Folien
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DE19539873A1 (de) * 1995-10-26 1997-04-30 Rovema Gmbh Vorrichtung und Verfahren zur Verschweißung einer Verpackung oder eines Verpackungsmaterials
DE19539873C2 (de) * 1995-10-26 2002-01-17 Rovema Gmbh Vorrichtung und Verfahren zur Verschweißung eines Verpackungsmaterials
DE29700628U1 (de) * 1997-01-16 1997-09-04 Wittmaier Klaus Vorrichtung zum Applizieren eines endlosen Streifens auf einer Endlosbahn
DE10023590A1 (de) * 2000-05-13 2001-11-15 Bosch Gmbh Robert Verfahren und Vorrichtung zum Herstellen von Blisterbahnen
DE10347777B3 (de) * 2003-10-15 2004-12-23 Uhlmann Pac-Systeme Gmbh & Co. Kg Verfahren und Vorrichtung zum Siegeln einer Blisterfolie mit einer Deckfolie
EP1632334A2 (de) * 2004-09-06 2006-03-08 UHLMANN PAC-SYSTEME GmbH & Co. KG Vorrichtung zum Siegeln
EP1632334A3 (de) * 2004-09-06 2009-12-16 UHLMANN PAC-SYSTEME GmbH & Co. KG Vorrichtung zum Siegeln
DE102015114020A1 (de) * 2015-08-24 2017-03-02 Spilker Gmbh Vorrichtung und Verfahren zum Herstellen von Verpackungen
CN111619896A (zh) * 2019-02-28 2020-09-04 莫迪维克西普哈根牧勒股份及两合公司 操作包装机的方法
DE102019217649A1 (de) * 2019-11-15 2021-05-20 Multivac Sepp Haggenmüller Se & Co. Kg Folienvorheizsystem

Also Published As

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US5806277A (en) 1998-09-15
JPH10503154A (ja) 1998-03-24
EP0770018A1 (de) 1997-05-02
WO1996035615A1 (de) 1996-11-14

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