ITVE980023A1 - Un procedimento per realizzare confezioni a tubo in materiale flessibi le, una apparecchiatura per effettuare il procedimento ed una confezio - Google Patents

Un procedimento per realizzare confezioni a tubo in materiale flessibi le, una apparecchiatura per effettuare il procedimento ed una confezio Download PDF

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Publication number
ITVE980023A1
ITVE980023A1 IT98VE000023A ITVE980023A ITVE980023A1 IT VE980023 A1 ITVE980023 A1 IT VE980023A1 IT 98VE000023 A IT98VE000023 A IT 98VE000023A IT VE980023 A ITVE980023 A IT VE980023A IT VE980023 A1 ITVE980023 A1 IT VE980023A1
Authority
IT
Italy
Prior art keywords
package
tube
sealing bars
flexible material
process according
Prior art date
Application number
IT98VE000023A
Other languages
English (en)
Inventor
Giorgio Trani
Sergio Visona
Original Assignee
Burgopack Stampa Trasformazione Imballaggi Spa
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
Priority to IT1998VE000023A priority Critical patent/IT1305240B1/it
Application filed by Burgopack Stampa Trasformazione Imballaggi Spa filed Critical Burgopack Stampa Trasformazione Imballaggi Spa
Priority to KR1020007001142A priority patent/KR20010022551A/ko
Priority to US09/485,159 priority patent/US6510673B1/en
Priority to EP99927788A priority patent/EP1001901B1/en
Priority to RU2000105385/12A priority patent/RU2225335C2/ru
Priority to BR9906514-2A priority patent/BR9906514A/pt
Priority to DE69906912T priority patent/DE69906912T2/de
Priority to AU45022/99A priority patent/AU4502299A/en
Priority to AT99927788T priority patent/ATE237507T1/de
Priority to DK99927788T priority patent/DK1001901T3/da
Priority to JP2000551998A priority patent/JP2002516790A/ja
Priority to CN99800876A priority patent/CN1108957C/zh
Priority to ES99927788T priority patent/ES2197646T3/es
Priority to PCT/EP1999/003709 priority patent/WO1999062769A1/en
Publication of ITVE980023A1 publication Critical patent/ITVE980023A1/it
Application granted granted Critical
Publication of IT1305240B1 publication Critical patent/IT1305240B1/it
Priority to US10/277,896 priority patent/US20030045416A1/en
Priority to US10/819,010 priority patent/US7144358B2/en

Links

Classifications

    • 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
    • B65B9/2049—Package shaping devices acting on filled tubes prior to sealing the filling opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
    • B62M6/40—Rider propelled cycles with auxiliary electric motor
    • 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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/24—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for shaping or reshaping completed packages
    • 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
    • B65B9/2035—Tube guiding means
    • 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
    • B65B9/213—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 the web having intermittent motion
    • 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
    • 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
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • 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
    • B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
    • 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
    • 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
    • B29C65/38—Impulse heating
    • 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
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • B29C65/7847—Holding or clamping means for handling purposes using vacuum to hold at least one of the parts to be joined
    • 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
    • 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
    • B29C66/13—Single 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
    • B29C66/135—Single hemmed joints, i.e. one of the parts to be joined being hemmed in the joint area
    • 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
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B29C66/2424—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain
    • B29C66/24243—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral
    • B29C66/24244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral forming a rectangle
    • 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
    • B29C66/345—Progressively making the joint, e.g. starting from the middle
    • B29C66/3452—Making complete joints by combining partial joints
    • 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
    • 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
    • B29C66/43121—Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags
    • 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
    • B29C66/4326—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 for making hollow articles or hollow-preforms, e.g. half-shells
    • 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
    • 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
    • B29C66/814—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 design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81463—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
    • 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
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8221—Scissor or lever mechanisms, i.e. involving a pivot point
    • 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
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8324—Joining or pressing tools pivoting around one axis
    • 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
    • B29C66/843—Machines for making separate joints at the same time in different planes; Machines for making separate joints at the same time mounted in parallel or in series
    • 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
    • B29C66/843—Machines for making separate joints at the same time in different planes; Machines for making separate joints at the same time mounted in parallel or in series
    • B29C66/8432—Machines for making separate joints at the same time mounted in parallel or in series
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/001—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom
    • B31B2150/0016—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom made from already formed bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
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    • B31B2150/003—Flexible containers made from sheets or blanks, e.g. from flattened tubes made from tubular sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/20—Shape of flexible containers with structural provision for thickness of contents
    • 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
    • B65B2220/00—Specific aspects of the packaging operation
    • B65B2220/12—Creating additional longitudinal welds on horizontal or vertical form fill seal [FFS] machines for stiffening packages or for creating package edges
    • 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
    • B65B9/2056—Machines for packages of special type or form

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Transportation (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Making Paper Articles (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Package Closures (AREA)
  • Packages (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Closing Of Containers (AREA)
  • Bag Frames (AREA)

Description

DESCRIZIONE
dell’invenzione avente per titolo:
“Un Procedimento per realizzare confezioni a tubo in materiale flessibile, una apparecchiatura per effettuare il procedimento ed una confezione ottenuta con. l ‘apparecchiatura”
La presente invenzione concerne un procedimento per realizzare confezioni a tubo in materiale flessibile, una apparecchiatura per effettuare il procedimento ed una confezione ottenuta con l'apparecchiatura.
Sono note confezioni (contenitori) in materiale flessibile utilizzati per contenere caffè, biscotti, bustine da te. Allo scopo di presentare una certa stabilità, queste confezioni presentano il fondo rinforzato ottenuto per saldatura di una porzione preformata di materiale rigido.
Sono note altresì confezioni con fondo quadrato ottenuto per piegatura di un nastro continuo.
Sono note altresì confezioni provviste di rinforzi laterali posti all'interno od all'esterno delle pareti laterali sempre con lo scopo di assicurare una certa stabilità alla confezione.
Tutte queste note confezioni presentano alcuni inconvenienti, ed in particolare:
- una certa laboriosità nella realizzazione del fondo,
- una non affidabile stabilità,
- la perdita della forma a seguito dell'introduzione del prodotto,
- l'ottenimento di forme che mal si prestano all'ottimizzazione degli spazi (trasporto, scaffalature).
Scopo dell'invenzione è di eliminare tali inconvenienti e di realizzare un procedimento che consenta di realizzare in modo semplice ed agevole confezioni con fondo rinforzato.
Altro scopo dell’invenzione è di realizzare un procedimento che consenta di utilizzare un’apparecchiatura in linea con la stazione di riempimento oppure immediatamente dopo la formazione del sacchetto.
Tali scopi ed altri che risulteranno dalla descrizione che segue sono raggiunti secondo l’invenzione con un procedimento per la formazione di confezioni a tubo in materiale flessibile caratterizzato dal fatto che ad almeno un'estremità chiusa della confezione a tubo si provoca il rientro ad U di una porzione anulare che viene almeno parzialmente saldata alla restante parte della confezione in corrispondenza delle porzioni affacciate.
La presente invenzione viene qui di seguito ulteriormente chiarita in una sua preferita forma di pratica realizzazione ed in alcune varianti realizzative riportate a scopo puramente esemplificativo e non limitativo con riferimento alle allegate tavole di disegni, in cui:
le figure 1-4 mostrano un’apparecchiatura secondo l’invenzione in quattro differenti fasi di preparazione della confezione,
le figure 5-7 mostrano una differente apparecchiatura in un modo diverso di funzionamento,
la figura 8 mostra il fondo di una confezione ottenuta con l’apparecchiatura,
le figure 9-10 mostrano una apparecchiatura per realizzare confezioni già riempite, e
le figure 11-12 mostrano una differente apparecchiatura.
Come si vede dalle figure il procedimento secondo l’invenzione prevede l'impiego di una apparecchiatura posta a valle di una tradizionale macchina formatrice o confezionatrice (non rappresentata nei disegni) di tipo verticale, della quale è stato rappresentato solamente il tubo finale 2 di riempimento. Nell'esempio illustrato il tubo ha forma quadrata, ma può avere anche forma circolare, ellittica, ecc.
In particolare deta apparecchiatura comprende un mandrino 4 avente la stessa forma del tubo, mobile verticalmente per mezzo di tradizionali dispositivi che non costituiscono oggeto dell'invenzione. Il mandrino è posto alli'nterno del tubo 2 ed è provvisto alla estremità inferiore di un collare 6 avente dimensioni esterne sostanzialmente corrispondenti a quelli del tubo 2.
Affacciato coassialmente a detto mandrino 4 è previsto un pistone 8 avente la stessa sezione del collare ma dimensioni inferiori.
Ai lati di questa apparecchiatura sono previste due coppie di barre saldanti 10, mobìli da e verso l’apparecchiatura, ad esempio per mezzo di martinetti idraulici 12 ai quali le barre saldanti sono solidali. Le barre saldanti possono essere altresì le stesse barre saldanti provviste di taglierina che sono utilizzate per saldare il fondo della confezione e separarla dal film flessibile proveniente dalla bobina. In particolare dete barre saldanti possono essere costituiti da dispositivi saldanti di tipo ad induzione, impulso, aria calda, radio frequenza, ultrasuoni e laser.
Inoltre ai fianchi del tubo sono previsti tradizionali cinghioli di trascinamento 14 del film flessibile 16 avvolto sul tubo e già saldato in corrispondenza dei lembi longitudinali.
L’utilizzazione dell'apparecchiatura in questa forma di realizzazione prevede che il nastro di film flessibile (materiale plastico, alluminio, carta), proveniente dalla bobina venga avvolto su un colletto formatore posto a monte del tubo 2 per formare una confezione a tubo continuo il cui fondo 17 viene saldato dalle barre saldanti 10 con metodi tradizionali.
Durante questa fase il mandrino 4 è completamente alloggiato all'interno del tubo 2 e la superficie del collare 6 forma con la superficie del tubo una superficie pressoché continua (cfr. fig. 1).
Viene quindi comandata la fuoriuscita del mandrino 4 dal tubo formatore 2, in modo tale che la confezione trascinata dai cinghioli 14 evidenzi un lembo anulare 18 avente altezza sostanzialmente doppia dell'altezza del fondo rinforzato da realizzare sulla confezione (cfr. figura 2).
Successivamente viene comandata una parziale risalita del collare 6 e quindi la salita del pistone 8 con parziale inserimento aH'intemo del collare 6 in modo da provocare l'inserimento ad U del lembo anulare 18 nella confezione ed evidenziare pertanto una gonna anulare 20 che avvolge completamente il collare 6 (cfr. figura 3). Viene quindi comandata la salita del mandrino 4 e del collare 6, che viene riportato alla sua posizione originaria, ed il contemporaneo avanzamento delle barre saldanti 10 che effettuano la saldatura dei due lembi della gonna interno contro interno usando come riscontro il pistone 8.
Viene quindi introdotto il prodotto all’interno del tubo 2, e la confezione, dopo essere stata saldata in corrispondenza della estremità di testa, viene inviata alle successive lavorazioni.
In una differente forma di realizzazione (non rappresentata nei disegni) il collare 6 è interessato da una pluralità di aperture a cui corrispondono zone calde nelle barre saldanti: questa forma di realizzazione consente di effettuare la saldatura della gonna, sebbene per zone discontinue, senza richiedere il sollevamento del mandrino 4.
Nella forma di realizzazione illustrata nelle figure 5 e 7 il procedimento prevede che il pistone 8 venga introdotto all'interno del tubo 2 trascinando una porzione di film flessibile a formare una gonna anulare 20 come nel precedente caso. Vengono quindi fatte avanzare verso detta gonna particolari barre saldanti 110 provviste di ventose 112 che unitamente al pistone provvedono a sfilare la gonna dal collare 6. Una volta che la gonna è stata sfilata dal collare le barre saldanti esercitano la loro azione di saldatura utilizzando anche in questo caso come riscontro il pistone. Viene quindi introdotto il prodotto all'interno del tubo e la confezione viene inviata alle successive lavorazioni.
In casi particolari è pure previsto che la confezione, una volta che la gonna è stata formata e saldata, venga tagliata dalla restante parte di film continuo e venga appiattita in corrispondenza dell'estremità a formare due lembi che vengono successivamente saldati. La confezione viene quindi aperta all’altra estremità per effettuare il riempimento con il prodotto.
Allo scopo di assicurare una maggiore stabilità alla confezione ottenuta è prevedibile che il film costituente la confezione sia interessato da bande trasversali di rinforzo, dello stesso materiate o di altro materiale, che durante la fase di formazione della confezione si vengono a trovare proprio in corrispondenza della zona che forma la gonna. Questa soluzione presenta l'ulteriore vantaggio di ottenere una confezione più stabile.
Allo scopo poi di assicurare un gradevole aspetto estetico alla confezione il procedimento prevede di inserire, all'interno del fondo incavato così ottenuto e delimitato dalla gonna, una corrispondente sagoma.
Nella forma di realizzazione illustrata nelle figure 9 e 10 è rappresentata una apparecchiatura di tipo orizzontale per effettuare la formazione di confezioni con il prodotto già inserito nella confezione.
In questa forma di realizzazione l'apparecchiatura comprende una camera 22 di alloggiamento della confezione, la quale camera è formata da quattro pareti mobili 24 costituite da barre saldanti provviste di ventose 26 di presa e da due punzoni 28 saldanti mobili assialmente verso l'interno di detta camera. In particolare le barre saldanti 24 hanno dimensioni in lunghezza sostanzialmente corrispondenti a quelle del tubo che deve formare la confezione.
Il procedimento secondo l'invenzione in questa forma di realizzazione prevede che la confezione, oramai chiusa alle estremità, venga saldamente trattenuta in corrispondenza delle superfici laterali dalle ventose 26 delle barre saldanti 24 e che venga successivamente provocato l'inserimento assiale dei punzoni 28 in modo da formare in corrispondenza delle due estremità due gonne anulari 30 che grazie all'azione termica delle barre 24 ed al riscontro dei punzoni 28 vengono saldate interno contro interno.
Nella forma di realizzazione illustrata nelle figure 11 e 12 i punzoni sono stati sostituiti dall'impiego di coppie di barre saldanti 32 articolate alle estremità delle pareti 24 e che a seguito della loro rotazione provocano il rientro del fondo all'interno della camera a formare anche in questo caso una gonna anulare 30.
La presente invenzione è stata illustrata e descritta in una sua preferita forma di pratica realizzazione ed in alcune varianti esecutive, ma si intende che altre varianti esecutive potranno ad essa in pratica apportarsi senza peraltro uscire dall’ambito di protezione del presente brevetto per invenzione industriale.

Claims (11)

  1. R I V E N D I C A Z I O N I 1. Procedimento per realizzare confezioni a tubo in materiale flessibile caratterizzato dal fatto che ad almeno un'estremità chiusa della confezione a tubo si provoca il rientro ad U di una porzione anulare che viene almeno parzialmente saldata alla restante parte della confezione in corrrispondenza delle porzioni affacciate.
  2. 2. Procedimento secondo la rivendicazione 1 caratterizzato dal fatto che si impiega un film flessibile interessato trasversalmente da bande di rinforzo in corrispondenza delle zone sulle quali si provoca il rientro ad U in fase di formatura.
  3. 3. Procedimento secondo la rivendicazione 1 caratterizzato dal fatto che al fondo incavato si applica una corrispondente sagoma.
  4. 4. Apparecchiatura per effettuare il procedimento secondo una delle rivendicazioni da 1 a 3 caratterizzata dal fatto di comprendere: - organi (4, 24) di trattenimento delle pareti laterali della confezione (16) che presenta almeno un’estremità chiusa (17), - mezzi (8, 28) inseribili assialmente almeno parzialmente all'interno di detti organi di trattenimento di tali pareti laterali a formare in corrispondenza di detta estremità chiusa un lembo anulare ripiegato ad U, - mezzi saldanti di detto lembo anulare ripiegato ad U.
  5. 5. Apparecchiatura secondo la rivendicazione 4 caratterizzata dal fatto che detti organi cavi di trattenimento sono costituiti da un mandrino (4) posto all’interno del tubo di riempimento (2) della confezione e che presenta un collare (6) la cui superficie esterna corrisponde alla superficie esterna del mandrino, e che i mezzi inseribili assialmente sono costituiti da un pistone (8).
  6. 6. Apparecchiatura secondo la rivendicazione 4 caratterizzata dal fatto di comprendere cinghioli di trascinamento (14) dall’esterno della confezione.
  7. 7. Apparecchiatura secondo la rivendicazione 4 caratterizzata dal fatto che l’organo di trattenimento è costituito da barre saldanti (24) disposte esternamente alla confezione, dette barre saldanti essendo provviste dì ventose (26) per il trattenimento della confezione, e che i mezzi di inserimento assiale sono costituiti da due pistoni contrapposti (28).
  8. 8. Apparecchiatura secondo la rivendicazione 4 caratterizzata dal fatto che i mezzi di inserimento assiale sono costituiti da barre saldanti (32) articolate alle barre saldanti che avvolgono la confezione.
  9. 9. Confezione ottenuta con il procedimento secondo le rivendicazioni da 1 a 3 caratterizzata da fatto che almeno il bordo inferiore chiuso è ripiegato all’interno ad U.
  10. 10. Confezione secondo la rivendicazione 9 caratterizzata dal fatto che il bordo ripiegato ad U presenta una fascia di rinforzo.
  11. 11. Procedimento per realizzare confezioni a tubo in materiale flessibile secondo le rivendicazioni da 1 a 3, apparecchiatura per effettuare il procedimento secondo le rivendicazioni da 4 a 8, confezione ottenuta secondo le rivendicazioni 9 e 10 e sostanzialmente come illustrati e descritti.
IT1998VE000023A 1998-06-04 1998-06-04 Un procedimento per realizzare confezioni a tubo in materialeflessibile, una apparecchiatura per effettuare il procedimento ed una IT1305240B1 (it)

Priority Applications (16)

Application Number Priority Date Filing Date Title
IT1998VE000023A IT1305240B1 (it) 1998-06-04 1998-06-04 Un procedimento per realizzare confezioni a tubo in materialeflessibile, una apparecchiatura per effettuare il procedimento ed una
JP2000551998A JP2002516790A (ja) 1998-06-04 1999-05-28 柔軟材料製管状包装容器の製造方法および装置
EP99927788A EP1001901B1 (en) 1998-06-04 1999-05-28 Method and apparatus for manufacturing tube-shaped packages made of flexible material, and package obtained thereby
RU2000105385/12A RU2225335C2 (ru) 1998-06-04 1999-05-28 Способ и устройство для изготовления трубчатых упаковок из гибкого материала
BR9906514-2A BR9906514A (pt) 1998-06-04 1999-05-28 Processo para fabricar embalagens em forma de tubo feitas de material flexìvel, aparelho para a prática do mesmo, e, embalagem obtida por meio dele
DE69906912T DE69906912T2 (de) 1998-06-04 1999-05-28 Verfahren und vorrichtung zum herstellen einer schlauchförmigen verpackung aus flexiblem material, und erzeugte verpackung
AU45022/99A AU4502299A (en) 1998-06-04 1999-05-28 Method and apparatus for manufacturing tube-shaped packages made of flexible material
AT99927788T ATE237507T1 (de) 1998-06-04 1999-05-28 Verfahren und vorrichtung zum herstellen einer schlauchförmigen verpackung aus flexiblem material, und erzeugte verpackung
KR1020007001142A KR20010022551A (ko) 1998-06-04 1999-05-28 유연성 재료로 만들어진 튜브형 포장의 제조 방법 및 그 장치
US09/485,159 US6510673B1 (en) 1998-06-04 1999-05-28 Method and apparatus for manufacturing tube-shaped packages made of flexible material
CN99800876A CN1108957C (zh) 1998-06-04 1999-05-28 用柔性材料制成管形包装件的方法和装置
ES99927788T ES2197646T3 (es) 1998-06-04 1999-05-28 Procedimiento y aparato para la fabicacion de envases en forma de tubo, de material flexible, y embalaje asi obtenido.
PCT/EP1999/003709 WO1999062769A1 (en) 1998-06-04 1999-05-28 Method and apparatus for manufacturing tube-shaped packages made of flexible material
DK99927788T DK1001901T3 (da) 1998-06-04 1999-05-28 Fremgangsmåde og apparat til fremstilling af rørformet emballage af fleksibelt materiale, og emballage fremstillet derved
US10/277,896 US20030045416A1 (en) 1998-06-04 2002-10-23 Method and apparatus for manufacturing tube-shaped packages made of flexible material
US10/819,010 US7144358B2 (en) 1998-06-04 2004-04-06 Method and apparatus for manufacturing tube-shaped packages made of flexible material

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IT1998VE000023A IT1305240B1 (it) 1998-06-04 1998-06-04 Un procedimento per realizzare confezioni a tubo in materialeflessibile, una apparecchiatura per effettuare il procedimento ed una

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AT (1) ATE237507T1 (it)
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DE (1) DE69906912T2 (it)
DK (1) DK1001901T3 (it)
ES (1) ES2197646T3 (it)
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KR20010022551A (ko) 2001-03-26
BR9906514A (pt) 2000-07-25
AU4502299A (en) 1999-12-20
US7144358B2 (en) 2006-12-05
CN1108957C (zh) 2003-05-21
WO1999062769A1 (en) 1999-12-09
JP2002516790A (ja) 2002-06-11
DE69906912T2 (de) 2003-12-11
DE69906912D1 (de) 2003-05-22
RU2225335C2 (ru) 2004-03-10
CN1272824A (zh) 2000-11-08
US20040192530A1 (en) 2004-09-30
EP1001901B1 (en) 2003-04-16
IT1305240B1 (it) 2001-04-19
ATE237507T1 (de) 2003-05-15
US6510673B1 (en) 2003-01-28
EP1001901A1 (en) 2000-05-24
DK1001901T3 (da) 2003-06-02
US20030045416A1 (en) 2003-03-06

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