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WO2016035773A1 - Fill packaging method and fill packaging machine for liquid object to be packaged - Google Patents

Fill packaging method and fill packaging machine for liquid object to be packaged Download PDF

Info

Publication number
WO2016035773A1
WO2016035773A1 PCT/JP2015/074772 JP2015074772W WO2016035773A1 WO 2016035773 A1 WO2016035773 A1 WO 2016035773A1 JP 2015074772 W JP2015074772 W JP 2015074772W WO 2016035773 A1 WO2016035773 A1 WO 2016035773A1
Authority
WO
WIPO (PCT)
Prior art keywords
packaging film
packaging
filling
film
seal
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
PCT/JP2015/074772
Other languages
French (fr)
Japanese (ja)
Inventor
知永 保坂
晶 矢島
倫也 福田
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.)
Taisei Lamick Co Ltd
Original Assignee
Taisei Lamick Co Ltd
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 Taisei Lamick Co Ltd filed Critical Taisei Lamick Co Ltd
Priority to US15/507,021 priority Critical patent/US20170247130A1/en
Priority to KR1020177008258A priority patent/KR101971379B1/en
Priority to JP2016512132A priority patent/JP6033498B2/en
Publication of WO2016035773A1 publication Critical patent/WO2016035773A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • B29C66/03—After-treatments in the joint area
    • B29C66/032—Mechanical after-treatments
    • B29C66/0326—Cutting, e.g. by using waterjets, or perforating
    • 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
    • B29C66/133—Fin-type joints, the parts to be joined being flexible
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • 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
    • B29C66/70—General 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
    • B29C66/72—General 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 structure of the material of the parts to be joined
    • B29C66/723—General 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 structure of the material of the parts to be joined being multi-layered
    • 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
    • B29C66/70—General 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
    • B29C66/73—General 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
    • B29C66/737—General 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 state of the material of the parts to be joined
    • B29C66/7373—Joining soiled or oxidised materials
    • 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
    • B29C66/70—General 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
    • B29C66/73—General 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
    • B29C66/739—General 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
    • B29C66/7392—General 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
    • B29C66/73921—General 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
    • 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
    • B29C66/81465—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 one placed behind the other in a single row in the feed direction
    • 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
    • B29C66/816—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 mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8167—Quick change joining tools or surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83511—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums
    • B29C66/83513—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums cooperating jaws mounted on rollers, cylinders or drums and moving in a closed path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—Packaging machines
    • B29C66/8491—Packaging machines welding through a filled container, e.g. tube or bag
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • B65B51/306—Counter-rotating devices
    • 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
    • B65B9/06—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it
    • B65B9/067—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it the web advancing continuously
    • 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
    • B65B9/12—Subdividing filled tubes to form two or more packages by sealing or securing involving displacement of contents
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
    • 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
    • B29C66/70—General 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
    • B29C66/71—General 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
    • 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
    • B29C66/70—General 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
    • B29C66/72—General 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 structure of the material of the parts to be joined
    • B29C66/723—General 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 structure of the material of the parts to be joined being multi-layered
    • B29C66/7234—General 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 structure of the material of the parts to be joined being multi-layered comprising a barrier layer

Definitions

  • the present invention relates to a filling and packaging method for a liquid package and a filling and packaging machine using the method, and more particularly, a filling and packaging method and a filling and packaging machine capable of preventing biting of a liquid package into a lateral seal portion. About.
  • Such an automatic filling and packaging machine for an article to be packaged is, for example, a packaging film having a laminated structure of a uniaxial or biaxially stretched base film layer and an unstretched sealant layer, as described in Patent Document 1, Or, a packaging film that has a single-layer structure in which a heat-sensitive adhesive layer is part-coated on the base film layer is folded at the center so that the sealant layer or the heat-sensitive adhesive layer is on the inside, and the side edges of the folded film are overlapped,
  • the packaging film is formed into a cylindrical shape by forming the vertical seal portion extending in the longitudinal direction while being welded to each other by heating and pressurizing with a pair of vertical seal rolls.
  • the cylindrically formed film is heated and pressurized sequentially by a plurality of heat seal bars positioned at equal intervals in the circumferential direction around each of the pair of horizontal seal rolls of the horizontal seal device.
  • the packaging bags are made by feeding them downward while being welded to each other and forming intermittently spaced transverse portions in the longitudinal direction of the packaging film in the width direction of the cylindrical packaging film. .
  • an article to be packaged is continuously supplied into the packaging film or intermittently from the formation of one horizontal seal portion to the next horizontal seal portion on the cylindrical packaging film.
  • each package bag is filled with an item to be packaged, and the intermediate portion of the lateral seal portion of the continuously manufactured packaging bag is cut by a cutting mechanism, and the package is carried out in a continuous package of single or multiple packages. To do.
  • the lateral seal is applied while extruding the package in the cylindrical packaging film with the heat seal bar of the horizontal seal roll, so that the bite into the horizontal seal portion of the package is applied.
  • the package includes a granular material such as a dressing, the granular material cannot be extruded with a heat seal bar.
  • the liquid package can be filled without bubbles or particles contained in the liquid package being bitten into the horizontal seal portion, and the productivity can be improved. It is an object of the present invention to provide a filling and packaging method for an article to be packaged and a filling and packaging machine using the method.
  • the inventor wraps the packaging film fed out in the longitudinal direction at the center so that the adhesive layer or the sealant layer faces each other, and wraps the packaging film on the side edge portion.
  • a longitudinal seal portion is formed in the longitudinal direction of the film for making a cylinder, the liquid packaging material is filled in the tubular packaging film, and perpendicular to the longitudinal direction of the packaging film by a pair of transverse seal rolls.
  • a method for filling and packaging a liquid package in a packaging film by forming a transverse seal portion extending across the entire width of the packaging film, and at least a folded side of the cylindrical packaging film Of the plurality of heat seal bars positioned at equal intervals in the circumferential direction of the horizontal seal roll, by pressing means provided between the heat seal bars,
  • filling and packaging method of the liquid to be packaged characterized in that to form the transverse seal portion by the pair of lateral seal rolls is valid and led to the development of the present invention.
  • the present invention also wraps the packaging film fed out in the longitudinal direction at the center so that the adhesive layer or the sealant layer faces each other, and a longitudinal seal portion in the longitudinal direction of the packaging film is provided at the side edge portion.
  • a plurality of heat seal bars positioned at equal intervals are pressed by pressing means provided between the heat seal bars, and the front of the packaging film is moved in the running direction.
  • the present invention proposes a method for filling and packaging a liquid article, wherein a horizontal seal portion is formed at a position by the pair of horizontal seal rolls.
  • the presser means comprises a presser bar that presses the tubular packaging film over its entire width.
  • the presser means comprises a presser plate that holds down the folded side portion of the tubular packaging film over its entire length.
  • the diaphragm means comprises a pair of diaphragm plates; (4) The pair of diaphragms are displaced to positions close to or away from each other based on the type and filling conditions of the packaging film, (5) At least one of the pair of diaphragm plates has a gas outlet at the tip, and the liquid packaging is interposed in the cylindrical packaging film by the pressure of the gas blown out from the gas outlet. Squeezing things, It is.
  • the present invention also wraps the packaging film fed out in the longitudinal direction at the center so that the adhesive layer or the sealant layer faces each other, and a longitudinal seal portion in the longitudinal direction of the packaging film is provided at the side edge portion.
  • a vertical sealing means formed into a cylindrical shape and extending over the entire width of the packaging film in a direction perpendicular to the longitudinal direction of the packaging film while filling the cylindrical packaging film with a liquid article to be packaged.
  • a transverse sealing means comprising a pair of lateral seal rolls that form a package by laterally sealing the packaging film at intervals in the longitudinal direction of the packaging film.
  • a plurality of heat seal bars positioned at equal intervals between the heat seal bars, and holding means for pressing at least a portion corresponding to the folded side of the packaging film.
  • the present invention also wraps the packaging film fed out in the longitudinal direction at the center so that the adhesive layer or the sealant layer faces each other, and a longitudinal seal portion in the longitudinal direction of the packaging film is provided at the side edge portion.
  • a vertical sealing means formed into a cylindrical shape and extending over the entire width of the packaging film in a direction perpendicular to the longitudinal direction of the packaging film while filling the cylindrical packaging film with a liquid article to be packaged.
  • a transverse sealing means comprising a pair of transverse seal rolls that form a package by laterally sealing the packaging film at intervals in the longitudinal direction of the packaging film.
  • a squeezing means located in front of the lateral seal roll so as to sandwich both side surfaces of the cylindrical packaging film and displaceable in directions close to and away from each other.
  • a plurality of heat seal bars positioned at equal intervals in the circumferential direction of the horizontal seal roll, and having a pressing means for pressing at least a portion corresponding to the folded side of the packaging film between the heat seal bars.
  • the presser means comprises a presser bar that presses the tubular packaging film over its entire width.
  • the presser means comprises a presser plate that holds down the folded side portion of the tubular packaging film over its entire length.
  • the diaphragm means comprises a pair of diaphragm plates; (4) At least one of the pair of diaphragms has a gas outlet at the tip.
  • the presser plate is configured to be position-adjustable according to the film width of the tubular packaging film, (6)
  • the pressing width in the axial direction of the horizontal seal roll by the pressing plate is 1 to 50% of the film width of the cylindrical packaging film, (7)
  • the presser bar is provided adjacent to the heat seal bar on the front side in the rotational direction of each heat seal bar of the horizontal seal roll; It is.
  • At least the folding side of the packaging film is provided between the plurality of heat seal bars provided on the peripheral surface of the transverse seal roll.
  • tubular film the tubular packaging film
  • the tubular film is intermittently sandwiched (squeezed out) from both sides by a squeezing means, and inside the cylindrical film of the liquid package to be supplied from the filling nozzle Temporarily prevent progress in Thereby, on the lower side of the squeezing means, a portion where the liquid package is not interposed is intermittently formed, and in this portion, a lateral seal portion is formed by a pair of lateral seal rolls, It is possible to effectively prevent the liquid packaging material, particularly the granular material contained in the liquid packaging material, from entering the horizontal seal portion. Therefore, even if the liquid package includes particulates, the granular material does not get caught in the horizontal seal portion, and the liquid package is continuously filled and packed by submerged seal filling. Therefore, productivity can
  • the throttle means is preferably composed of a pair of diaphragm plates, and a gas film is provided at the tip of at least one of the pair of diaphragm plates, and the tubular film is formed by the pressure of the gas blown from the gas nozzle. Is oscillated to squeeze out liquid substances, granular substances, and the like intervening in the tubular film, and thereby the biting of the liquid package into the horizontal seal portion can be further effectively suppressed. Furthermore, by utilizing the pressure of the gas, the tubular film can be directly sandwiched by the diaphragm plate to assist the squeezing operation, and there is no possibility that the tubular film is damaged due to an increase in slipperiness.
  • the holding means is formed of a holding plate that holds the folded side portion of the tubular packaging film over its entire length, entry of the liquid article to the folded side portion is completely prevented.
  • the holding means is composed of a holding bar that holds the tubular packaging film over its entire width, The liquid package filled over the entire width of the packaging film as well as the side portions is prevented from being sucked up along the inner wall surface of the packaging film. Can be prevented.
  • both the above-described presser plate and the presser bar are provided as the presser means, the effect of suppressing biting into the lateral seal portion can be more effectively exhibited.
  • the pair of diaphragms can be displaced to positions close to or away from each other based on the type of packaging film and filling conditions, and the presser plate is positioned according to the film width of the tubular film.
  • the holding width in the axial direction of the horizontal seal roll by the press plate is set to 1 to 50% of the tubular film width, and the press bar is provided adjacent to the heat seal bar of the horizontal seal roll.
  • FIG. 1 It is a schematic diagram which shows the structure of the vertical filling packaging machine as one Example of the filling packaging machine of this invention. It is one Embodiment of the perspective view which expands and shows the horizontal seal
  • FIG. 1 is a schematic diagram showing the configuration of a vertical filling and packaging machine as an embodiment of the filling and packaging machine of the present invention.
  • This vertical filling and packaging machine is formed by laminating a base film layer made of, for example, a biaxially stretched ethylene-vinyl alcohol copolymer resin and a sealant layer made of, for example, an unstretched ethylene-vinyl acetate copolymer resin. While running a long packaging film made of the laminated film in the longitudinal direction, the sheet is folded back in the width direction so that the sealant layers face each other, and both side edges are overlapped with each other. While making a large number of packaging bags from packaging film, each package bag automatically loads foods, seasonings, pharmaceuticals, cosmetics and other liquid or viscous or jelly-like fluid materials. Filling. As shown in FIG.
  • the vertical filling and packaging machine mainly includes a film folding portion 1, a vertical seal portion forming portion 2, an article supply portion 3, a first horizontal seal portion forming portion 4 a, 2 side seal part forming part 4b, and the cutting part 5 which cut
  • a case where a liquid package including a granular material or the like is used as the package will be described as an example.
  • both side edges of the packaging film 6 folded and overlapped are heated and pressurized in the longitudinal direction (vertical direction) of the packaging film 6 by a pair of vertical seal rolls 8 to vertically seal.
  • a portion 13 is formed, thereby forming a tubular film 15 in which the packaging film 6 is formed into a tubular shape.
  • the vertical seal portion forming portion 2 includes a pair of vertical seal rolls 8 that are arranged in a direction perpendicular to the paper surface and extend in parallel with each other in the drawing, and a gear set (not shown) for the pair of vertical seal rolls 8.
  • the motor 9 that is rotationally driven in the opposite direction and at the same speed via the two, and both ends of the support shaft of the vertical seal roll 8 are supported so as to bias the pair of vertical seal rolls 8 toward each other.
  • a pair of air cylinders 10 provided in the bearing portion.
  • each of the pair of vertical seal rolls 8 has one annular flange 8a on the outer peripheral surface thereof, and a heater (not shown) for heating the annular flange 8a therein, and the pair of air cylinders 10 described above.
  • the two side edges of the cylindrical film 15 are heated by the heat transmitted from the heater to the annular flange 8a while being pressed between the annular flanges 8a by pressing the opposite side edges of the tubular film 15 by the pressing force of While the sealant layers of the portions are welded together to form the vertical seal portion 13, the cylindrical film 15 is caused to travel downward by the rotation.
  • the liquid package M supplied from a tank (not shown) through a pump (not shown) and a supply path passes through the pair of vertical seal rolls 8 from above to below.
  • the filling nozzle 11 fills the inside of the tubular film 15 by a predetermined amount.
  • the cylindrical film 15 is heated at a constant interval in the longitudinal direction while being heated over the entire width by a pair of horizontal seal rolls 12, and welded to each other intermittently.
  • a lateral seal portion 14 is formed.
  • the horizontal seal portion 14 is re-pressed to secure the seal, whereby a large number of packaging bags W are connected in the longitudinal direction of the tubular film 15. Make a bag.
  • individual packaging bags W are obtained by cutting the substantially intermediate portion of the lateral seal portion 14 of the continuous packaging bags W by the cutting portion 5.
  • the pair of horizontal seal rolls 12 in the first and second horizontal seal portion forming portions 4a and 4b are driven to rotate at opposite speeds at a constant speed by a motor via a gear set, and the first horizontal seal roll 12 is rotated.
  • a plurality (four in the figure) of heat seal bars 12a extending in the axial direction are arranged on the outer peripheral surface at equal intervals in the circumferential direction.
  • the horizontal seal portion 14 is formed or reinforced by sandwiching the tubular film 15 by the heat seal bar 12a.
  • Each horizontal seal roll 12 has a built-in heater for heating the heat seal bar 12a.
  • FIG. 2 shows a case where the presser means 17 includes presser plates 18a and 18b having partial cylindrical surfaces that press the folded side 6a portion of the tubular film 15 over its entire length as an embodiment. According to the holding plates 18a and 18b, at least a portion including the folded side 6a of the tubular film 15 after one horizontal sealing by the pair of heat seal bars 12a is partially pressed.
  • FIG. 2 shows a case where the packaging bag W is formed of a three-side seal bag.
  • the presser plates 18a and 18b are preferably used for a bag that is folded on both sides, such as a back-sealed seal bag. be able to.
  • the press plates 18a and 18b only need to be able to press at least the folded side 6a of the tubular film 15, and preferably have a partial cylindrical surface as shown in FIG.
  • the pressing plates 18a and 18b preferably have a pressing width in the axial direction of the horizontal seal roll 12 of 1 to 50%, more preferably 1 to 20% of the film width of the tubular film 15. This is to ensure an appropriate and necessary filling volume, and according to this, the presser plates 18a and 18b do not get in the way when filling the liquid package, and the packaging bag.
  • the folded side 6a of the tubular film 15 can be reliably pressed without excessively reducing the inner volume of the tube film 15.
  • the plate width in the axial direction of the horizontal seal roll 12 of the holding plates 18a, 18b is preferably 1 to 80% of the width of the heat seal bar 12a.
  • the holding plates 18a and 18b can be easily attached between the heat seal bars 12a with screws, bolts, etc., maintenance is easy and the holding plates 18a and 18b are attached to the film width of the tubular film 15.
  • the installation position it can be used for manufacturing various packages.
  • the height can be appropriately adjusted by sandwiching shims between the press plates 18 a and 18 b and the roll surface of the horizontal seal roll 12.
  • FIG. 3 shows another embodiment of the horizontal seal portion forming portion, in which the pressing means 17 includes presser bars 19a and 19b.
  • FIG. 3 (a) is a perspective view and FIG. 3 (b) is FIG. 3 (a). It is an end elevation in AA position.
  • the presser bars 19a and 19b are provided adjacent to the heat seal bar 12a at a position in front of the rotation direction of each heat seal bar 12a, preferably at a position 0.1 to 30 mm away from the heat seal bar 12a, more preferably Provided at a position 0.1 to 15 mm apart.
  • the presser bars 19a and 19b are provided in parallel with the heat seal bar 12a.
  • the present invention is not limited to this, and the heat seal bar 12a is provided in accordance with the viscosity or the filling amount of the liquid package.
  • the tubular film 15 can be appropriately pressed.
  • the width of the press bar 19a, 19b in the axial direction of the horizontal seal roll 12 is substantially the same as that of the heat seal bar 12a, the tubular film 15 can be pressed over the entire width, so that one horizontal seal It is possible to prevent the liquid package filled in the cylindrical film 15 after the formation of the portion 14 from being sucked up along the inner wall surface of the cylindrical film 15 as well as the folded side 6a. It is possible to effectively suppress the liquid package from being bitten in the container 14.
  • the presser bars 19a and 19b can exhibit the same effect in a four-side sealed bag as well as a folded bag such as a three-side sealed bag and a back-sealed seal bag.
  • the presser bars 19a and 19b have a surface shape that is circular as shown in FIG. 3, or a flat shape or a chevron shape. Is preferably ⁇ 2 to +5 mm, more preferably 0 to +2 mm with respect to the height of the heat seal bar 12a. According to this, since the packaging film can be surely pressed, it is possible to effectively prevent the liquid package to be packed in the cylindrical film 15 from being sucked up to the next position of the lateral seal portion 14. Can do.
  • the presser bars 19a and 19b can be formed of Teflon (registered trademark), silicon, plastic, elastic metal, or the like. However, since the presser bars 19a and 19b are provided adjacent to the heat seal bar 12a, a material having heat insulation properties. Preferably it consists of.
  • the width of the presser bars 19a, 19b in the traveling direction of the cylindrical film 15 is preferably 0.5 to 50 mm, more preferably 2 to 10 mm. According to this, the cylindrical film 15 can be reliably pressed down over the entire width without excessively reducing the internal volume of the packaging bag.
  • the pressing plates 18a and 18b and the pressing bars 19a and 19b may be provided together.
  • the liquid package to be filled in the tubular film 15 is provided with the folded sides 6a and Suctioning along the inner wall surface of the tubular film 15 can be more effectively prevented, and the liquid package can be effectively suppressed from being bitten into the next horizontal seal portion 14. it can.
  • the formation position of the lateral seal portion 14 by the pair of lateral seal rolls 12 of the first lateral seal portion forming portion 4 a is determined. It is preferable to provide the throttle means 16 in front.
  • the diaphragm means 16 preferably uses a pair of diaphragm plates 16a and 16b shown in FIG. 2, but any other means can be used as long as the traveling cylindrical film 15 such as a pair of diaphragm rolls can be narrowed from both sides. It may be a mechanism.
  • the pair of diaphragm plates 16a and 16b as the diaphragm means 16 are arranged so as to sandwich the side surface of the cylindrical film 15, and the diaphragm plates 16a and 16b intermittently pass through both sides of the cylindrical film 15 at a required timing. By being sandwiched (squeezed), it functions to temporarily prevent the liquid package to be filled from descending in the tubular film 15.
  • the squeezing means 16 also has a function of squeezing out air contained in the liquid package and a function of stabilizing the shape of the packaging bag and the filling amount of the package.
  • the liquid film and the granular material are prevented from descending in the tubular film 15 below the squeezing means 16, and portions where they are not interposed are intermittently formed.
  • the horizontal seal portion 14 by the horizontal seal roll 12 at the subsequent stage, it is possible to effectively prevent the liquid material and the granular material from being caught in the horizontal seal portion 14. Therefore, according to the squeezing means 16, the liquid package can be continuously filled and packaged while preventing biting into the lateral seal portion 14.
  • the pair of diaphragm plates 16a and 16b are configured to be displaceable by, for example, swinging in a direction in which they are close to each other with the tubular film 15 interposed therebetween and in a direction in which they are separated from each other.
  • the timing of displacement of the aperture means 16, the closing time (time in which they are close to each other), the opening time (time in which they are separated from each other) and the like are controlled by control means such as a microcomputer.
  • control means such as a microcomputer.
  • a predetermined calculation based on the input values of the filling conditions such as the packaging form and film configuration of the packaging film 6 inputted by the production condition setting means, the filling amount of the article to be packaged and the feeding speed of the packaging film 6 Calculated by performing processing.
  • the control means may also be used as the control means that functions as the main computer of the filling and packaging machine.
  • the production condition setting means is composed of an input means such as a numeric keypad and a touch panel integrally provided with a monitor for displaying a set value by the input means, and is a packaging form (packaging bag) of the packaging film 6 of the filling and packaging machine. It is possible to set and change filling conditions such as W length (seal pitch)), film configuration, and film feed speed.
  • the production condition setting means further includes an operation monitor that displays the displacement operation of the throttle means 16 and the lateral seal speed in a graph over time, so that the displacement state of the throttle means 16 can be confirmed visually and appropriately. The displacement timing, the opening / closing time, the proximity distance of the aperture means 16 and the like can be adjusted (input).
  • the production condition setting means has storage means such as a backup RAM or EEPROM for storing production conditions corresponding to the type and filling conditions of the packaging film 6.
  • the diaphragm plates 16a and 16b are made of metal, a low-friction resin material such as Teflon (registered trademark), MC nylon, polyacetal, ultra-high molecular polyethylene, or the like, and are attached to at least one end portion of the pair of diaphragm plates 16.
  • a gas outlet Preferably has a gas outlet. From this gas outlet, incombustible gas such as air or nitrogen is blown out continuously or intermittently toward the tubular film 15 with the diaphragm plate 16 displaced in the closing direction. Liquid matter and granular matter intervening in the cylindrical film 15 are effectively squeezed out by vibration due to pressure.
  • the same effect can be expected regardless of whether the gas blowing direction from the gas blowing port is upward, vertical or downward toward the tubular film 15.
  • the effect of squeezing out liquids and particulates due to the gas pressure is effectively exhibited by blowing the gas toward the tubular film 15 from the folded side 6a to a range of at least 30% of the film width.
  • the gas blowing timing, time, pressure, etc. can be set by the production condition setting means.
  • FIG. 4A shows a state in which the horizontal seal portion 14 is formed by the pair of heat seal bars 12 a and the liquid package is filled into the tubular film 15 from the filling nozzle 11.
  • FIG. 4 (b) starts the displacement in the direction in which the pair of diaphragm plates 16a and 16b are close to each other in accordance with instructions from the control means to the diaphragm plates 16a and 16b, and narrows the tubular film 15 from both sides. The state where the fall of the liquid to-be packaged object with the cylindrical film 15 was prevented is shown.
  • FIG. 4 (c) shows that the pair of heat seal bars 12a reach 15 locations of the tubular film where the lowering of the packaged object is blocked in FIG. 14 is formed.
  • the diaphragm plates 16a and 16b start to be displaced in the opening direction in accordance with an instruction from the control means, and the filling of the liquid package into the cylindrical film 15 is resumed.
  • Packaging bag 1 Film folding part 2
  • Vertical seal part forming part 3 Package supply part 4a First horizontal seal part forming part 4b Second horizontal seal part forming part 5
  • Cutting part 6 Packaging film 6a Folding side 7
  • Guide rod 8 Vertical seal roll 8a Annular flange 9
  • Motor 10 Air cylinder 11
  • Filling nozzle 12 Horizontal seal roll 12a Heat seal bar 13
  • Vertical seal part 14 Horizontal seal part 15 Cylindrical film 16

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Abstract

[Problem] To provide: a transverse seal-forming method capable of filling a liquid object to be packaged without gas bubbles, particles, etc. contained in the liquid object to be packaged intruding into the transverse seal and capable of improving productivity; and a fill packaging machine using said method. [Solution] A method for folding a packaging film, which is fed and driven, back at the center and forming a longitudinal seal on the side edge portion thereof to form the film in a tubular shape, filling a liquid object to be packaged inside said tubular packaging film, and forming transverse seals using a pair of transverse sealing rolls, wherein at least the fold back side of the tubular packaging film is pressed by pressing means provided between each of multiple heat sealing bars located at equal intervals in the circumferential direction of the transverse sealing rolls and transverse seals are formed at said pressing positions using the pair of transverse sealing rolls.

Description

液状被包装物の充填包装方法および充填包装機Filling and packaging method and filling and packaging machine for liquid packages

　この発明は、液状被包装物の充填包装方法および該方法を利用した充填包装機に関し、とくには液状被包装物の横シール部内への噛み込みを阻止することのできる充填包装方法および充填包装機に関する。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filling and packaging method for a liquid package and a filling and packaging machine using the method, and more particularly, a filling and packaging method and a filling and packaging machine capable of preventing biting of a liquid package into a lateral seal portion. About.

　近年、軟質の包装用フィルムによって飲食物、調味液、医薬品、化粧品等の液状物、粘稠物もしくは粉、粒状物、その他の被包装物を自動充填包装することが広く一般に行われている。 In recent years, automatic filling and packaging of liquid products such as foods and drinks, seasoning liquids, pharmaceuticals, and cosmetics, viscous materials or powders, granular materials, and other objects to be packaged has been widely performed.

　このような被包装物の自動充填包装機は、例えば、特許文献１に記載されているように、一軸もしくは二軸延伸ベースフィルム層と無延伸のシーラント層との積層構造からなる包装用フィルム、またはベースフィルム層に感熱接着層をパートコートした単層構造になる包装用フィルムを、シーラント層あるいは感熱接着層が内側になるように中央部で折り返し、その折り返しフィルムの側縁部分を重ね合わせ、一対の縦シールロールによって加熱および加圧することにより互いに溶着させながら下方へ送り、長手方向に延在する縦シール部を形成することで、その包装用フィルムを筒状に成形する。 Such an automatic filling and packaging machine for an article to be packaged is, for example, a packaging film having a laminated structure of a uniaxial or biaxially stretched base film layer and an unstretched sealant layer, as described in Patent Document 1, Or, a packaging film that has a single-layer structure in which a heat-sensitive adhesive layer is part-coated on the base film layer is folded at the center so that the sealant layer or the heat-sensitive adhesive layer is on the inside, and the side edges of the folded film are overlapped, The packaging film is formed into a cylindrical shape by forming the vertical seal portion extending in the longitudinal direction while being welded to each other by heating and pressurizing with a pair of vertical seal rolls.

　次いで、この筒状に成形されたフィルムを、横シール装置の、一対の横シールロールのそれぞれの周囲に周方向に等間隔に位置する複数本のヒートシールバーで順次に加熱および加圧することにより互いに溶着させながら下方へ送り、筒状の包装用フィルムにその幅方向に延在する横シール部を包装用フィルムの長手方向に間隔を空けて間欠的に形成することで包装袋を製袋する。このとき、包装用フィルム内に被包装物を連続的に、または筒状の包装用フィルムへの１つの横シール部の形成からその次の横シール部の形成までの間に間欠的に供給することで被包装物を各包装袋内に充填し、連続的に製造される包装袋の横シール箇所の中間部を切断機構により切断して、単包または複数包が連続する連包状態で搬出する。 Next, the cylindrically formed film is heated and pressurized sequentially by a plurality of heat seal bars positioned at equal intervals in the circumferential direction around each of the pair of horizontal seal rolls of the horizontal seal device. The packaging bags are made by feeding them downward while being welded to each other and forming intermittently spaced transverse portions in the longitudinal direction of the packaging film in the width direction of the cylindrical packaging film. . At this time, an article to be packaged is continuously supplied into the packaging film or intermittently from the formation of one horizontal seal portion to the next horizontal seal portion on the cylindrical packaging film. In this way, each package bag is filled with an item to be packaged, and the intermediate portion of the lateral seal portion of the continuously manufactured packaging bag is cut by a cutting mechanism, and the package is carried out in a continuous package of single or multiple packages. To do.

特開平０４－１１４８４１号公報Japanese Patent Laid-Open No. 04-114841

　このような従来の充填包装機では、上記したように一対の横シールロールによって横シール部を形成する際に、包装用フィルムの折返し辺部分は、一の横シール部を形成した後、次の横シール部を形成するまでの間にスプリングバックによって膨らんだ状態となり、充填した液状被包装物が、毛細管作用によって折返し辺側を伝って上に吸い上げられて、次の横シール部内に噛み込まれ、シール不良を生じるおそれがあった。 In such a conventional filling and packaging machine, when the lateral seal portion is formed by the pair of lateral seal rolls as described above, the folded side portion of the packaging film forms the one horizontal seal portion, and then the next Before the horizontal seal part is formed, it is swelled by the spring back, and the filled liquid package is sucked up along the folded side by capillary action and is bitten in the next horizontal seal part. There was a risk of poor sealing.

　また、横シール部を形成する際、横シールロールのヒートシールバーによって筒状の包装用フィルム内にある被包装物を押し出しながら横シールを施すことで、被包装物の横シール部内への噛み込みを抑制しているが、十分ではなく、とくに被包装物が、例えば、ドレッシングのように粒状物等を含むものである場合には、該粒状物等をヒートシールバーで押し出すことができず、横シール部内に噛み込まれてしまうおそれがある。このように横シール部内へ粒状物等が噛み込まれてしまうと、美観を損なうばかりでなく、発泡が発生してシール不良が生じ、被包装物が漏れ出すおそれもある。 In addition, when forming the horizontal seal portion, the lateral seal is applied while extruding the package in the cylindrical packaging film with the heat seal bar of the horizontal seal roll, so that the bite into the horizontal seal portion of the package is applied. However, it is not sufficient, and in particular, if the package includes a granular material such as a dressing, the granular material cannot be extruded with a heat seal bar. There is a risk of being caught in the seal portion. If particulate matter or the like is caught in the lateral seal portion in this way, not only the appearance is impaired, but also foaming occurs to cause a seal failure, and the packaged article may leak out.

　したがって、とくに粒状物等を含む被包装物を充填包装する場合には、前記したように筒状の包装用フィルムへの１の横シール部の形成から、その次の横シール部の形成までの間に、間欠的に被包装物を充填することで、横シール部内への粒状物等の噛み込みを防止しているが、この方法では、被包装物を連続充填する場合に比べて生産性が極端に低下してしまうという問題点があった。 Therefore, in the case of filling and packaging a packaged article including a granular material in particular, from the formation of one horizontal seal part to the cylindrical packaging film as described above, from the formation of the next horizontal seal part. In the meantime, the packing material is intermittently filled to prevent the biting of the granular material into the horizontal seal portion. However, this method is more productive than the case where the packing material is continuously filled. There was a problem that would be extremely reduced.

　そこで、本発明では、液状被包装物中に含まれる気泡や粒状物等が横シール部内に噛み込まれることなく、液状被包装物を充填することができ、生産性を向上させることのできる液状被包装物の充填包装方法およびその方法を利用した充填包装機を提供することを目的とする。 Therefore, in the present invention, the liquid package can be filled without bubbles or particles contained in the liquid package being bitten into the horizontal seal portion, and the productivity can be improved. It is an object of the present invention to provide a filling and packaging method for an article to be packaged and a filling and packaging machine using the method.

　前記目的の実現に向けた研究の中で、発明者は、長手方向に繰り出し走行される包装用フィルムを、接着層もしくはシーラント層が対向するように中央部で折り返し、その側縁部分に、包装用フィルムの長手方向に縦シール部を形成して筒状とし、該筒状の包装用フィルム内に液状の被包装物を充填し、一対の横シールロールによって包装用フィルムの長手方向に直交する方向に挟み込み、包装用フィルムの全幅にわたって延在する横シール部を形成することにより液状被包装物を包装用フィルム内に充填包装する方法であって、前記筒状の包装用フィルムの少なくとも折返し辺部を、前記横シールロールの周方向に等間隔に位置する複数本のヒートシールバーの、各ヒートシールバー間に設けた押え手段によって押え込み、該押え込み位置に、前記一対の横シールロールによって横シール部を形成することを特徴とする液状被包装物の充填包装方法が有効であることを突き止め、本発明を開発するに到った。 In the research for realizing the above object, the inventor wraps the packaging film fed out in the longitudinal direction at the center so that the adhesive layer or the sealant layer faces each other, and wraps the packaging film on the side edge portion. A longitudinal seal portion is formed in the longitudinal direction of the film for making a cylinder, the liquid packaging material is filled in the tubular packaging film, and perpendicular to the longitudinal direction of the packaging film by a pair of transverse seal rolls A method for filling and packaging a liquid package in a packaging film by forming a transverse seal portion extending across the entire width of the packaging film, and at least a folded side of the cylindrical packaging film Of the plurality of heat seal bars positioned at equal intervals in the circumferential direction of the horizontal seal roll, by pressing means provided between the heat seal bars, In, it found that filling and packaging method of the liquid to be packaged, characterized in that to form the transverse seal portion by the pair of lateral seal rolls is valid and led to the development of the present invention.

　また、本発明は、長手方向に繰り出し走行される包装用フィルムを、接着層もしくはシーラント層が対向するように中央部で折り返し、その側縁部分に、包装用フィルムの長手方向に縦シール部を形成して筒状とし、該筒状の包装用フィルム内に液状の被包装物を充填し、一対の横シールロールによって包装用フィルムの長手方向に直交する方向に挟み込み、包装用フィルムの全幅にわたって延在する横シール部を形成することにより液状被包装物を包装用フィルム内に充填包装する方法であって、前記筒状の包装用フィルムの少なくとも折返し辺部を、前記横シールロールの周方向に等間隔に位置する複数本のヒートシールバーの、各ヒートシールバー間に設けた押え手段によって押え込むと共に、前記包装用フィルムの走行方向で、前記横シールロールの手前の位置において、前記筒状の包装用フィルムの両側面を、絞り手段によって挟み込んで液状被包装物を間欠的に絞り出し、該包装用フィルムの、前記押え手段および絞り手段による作用位置に、前記一対の横シールロールによって横シール部を形成することを特徴とする液状被包装物の充填包装方法を提案する。 The present invention also wraps the packaging film fed out in the longitudinal direction at the center so that the adhesive layer or the sealant layer faces each other, and a longitudinal seal portion in the longitudinal direction of the packaging film is provided at the side edge portion. Formed into a cylindrical shape, filled with a liquid packaging material in the cylindrical packaging film, and sandwiched in a direction perpendicular to the longitudinal direction of the packaging film by a pair of transverse seal rolls, over the entire width of the packaging film A method for filling and packaging a liquid package in a packaging film by forming an extending lateral seal portion, wherein at least the folded side portion of the tubular packaging film is arranged in the circumferential direction of the lateral seal roll A plurality of heat seal bars positioned at equal intervals are pressed by pressing means provided between the heat seal bars, and the front of the packaging film is moved in the running direction. At the position before the horizontal seal roll, the both sides of the cylindrical packaging film are sandwiched by the squeezing means to squeeze out the liquid packaging material intermittently, and the action of the packaging film by the holding means and the squeezing means The present invention proposes a method for filling and packaging a liquid article, wherein a horizontal seal portion is formed at a position by the pair of horizontal seal rolls.

　なお、本発明の上記液状被包装物の充填包装方法については、さらに下記のような構成にすることがより好ましい解決手段となる。即ち、
（１）前記押え手段は、前記筒状の包装用フィルムを全幅にわたって押さえる押えバーからなること、
（２）前記押え手段は、前記筒状の包装用フィルムの折返し辺部分をその全長にわたって押さえる押え板からなること、
（３）前記絞り手段は、一対の絞り板からなること、
（４）前記一対の絞り板は、前記包装用フィルムの品種および充填条件に基づいて、相互に近接または離間する位置に変位すること、
（５）前記一対の絞り板の少なくとも一方は、先端部にガス吹き出し口を有し、該ガス吹き出し口から吹き出されたガスの圧力によって、前記筒状の包装用フィルム内に介在する液状被包装物をしごき出すこと、
である。 In addition, about the filling packaging method of the said liquid to-be-packaged material of this invention, it becomes a more preferable solution means to set it as the following structures further. That is,
(1) The presser means comprises a presser bar that presses the tubular packaging film over its entire width.
(2) The presser means comprises a presser plate that holds down the folded side portion of the tubular packaging film over its entire length.
(3) The diaphragm means comprises a pair of diaphragm plates;
(4) The pair of diaphragms are displaced to positions close to or away from each other based on the type and filling conditions of the packaging film,
(5) At least one of the pair of diaphragm plates has a gas outlet at the tip, and the liquid packaging is interposed in the cylindrical packaging film by the pressure of the gas blown out from the gas outlet. Squeezing things,
It is.

　また、本発明は、長手方向に繰り出し走行される包装用フィルムを、接着層もしくはシーラント層が対向するように中央部で折り返し、その側縁部分に、包装用フィルムの長手方向に縦シール部を形成して筒状とする縦シール手段と、該筒状の包装用フィルム内に液状の被包装物を充填しながら、包装用フィルムの長手方向に直交する方向に、包装用フィルムの全幅にわたって延在し、包装用フィルムの長手方向に間隔をおいて横シールを施して包装体を形成する一対の横シールロールからなる横シール手段と、を備える充填包装機において、前記横シールロールの周方向に等間隔に位置する複数本のヒートシールバーの、各ヒートシールバー間の、少なくとも前記包装用フィルムの折返し辺に相当する部分を押さえ込む押え手段を有することを特徴とする充填包装機を提案する。 The present invention also wraps the packaging film fed out in the longitudinal direction at the center so that the adhesive layer or the sealant layer faces each other, and a longitudinal seal portion in the longitudinal direction of the packaging film is provided at the side edge portion. A vertical sealing means formed into a cylindrical shape and extending over the entire width of the packaging film in a direction perpendicular to the longitudinal direction of the packaging film while filling the cylindrical packaging film with a liquid article to be packaged. A transverse sealing means comprising a pair of lateral seal rolls that form a package by laterally sealing the packaging film at intervals in the longitudinal direction of the packaging film. A plurality of heat seal bars positioned at equal intervals between the heat seal bars, and holding means for pressing at least a portion corresponding to the folded side of the packaging film. To propose a filling and packaging machine, wherein the door.

　また、本発明は、長手方向に繰り出し走行される包装用フィルムを、接着層もしくはシーラント層が対向するように中央部で折り返し、その側縁部分に、包装用フィルムの長手方向に縦シール部を形成して筒状とする縦シール手段と、該筒状の包装用フィルム内に液状の被包装物を充填しながら、包装用フィルムの長手方向に直交する方向に、包装用フィルムの全幅にわたって延在し、包装用フィルムの長手方向に間隔をおいて横シールを施して包装体を形成する一対の横シールロールからなる横シール手段と、を備える充填包装機において、前記包装用フィルムの走行方向で、前記横シールロールの手前の位置に、前記筒状の包装用フィルムの両側面を挟むように位置し、相互に近接および離間する方向に変位可能な絞り手段を有すると共に、前記横シールロールの周方向に等間隔に位置する複数本のヒートシールバーの、各ヒートシールバー間の、少なくとも前記包装用フィルムの折返し辺に相当する部分を押さえ込む押え手段を有することを特徴とする充填包装機を提案する。 The present invention also wraps the packaging film fed out in the longitudinal direction at the center so that the adhesive layer or the sealant layer faces each other, and a longitudinal seal portion in the longitudinal direction of the packaging film is provided at the side edge portion. A vertical sealing means formed into a cylindrical shape and extending over the entire width of the packaging film in a direction perpendicular to the longitudinal direction of the packaging film while filling the cylindrical packaging film with a liquid article to be packaged. And a transverse sealing means comprising a pair of transverse seal rolls that form a package by laterally sealing the packaging film at intervals in the longitudinal direction of the packaging film. And having a squeezing means located in front of the lateral seal roll so as to sandwich both side surfaces of the cylindrical packaging film and displaceable in directions close to and away from each other. In addition, a plurality of heat seal bars positioned at equal intervals in the circumferential direction of the horizontal seal roll, and having a pressing means for pressing at least a portion corresponding to the folded side of the packaging film between the heat seal bars. Propose a special filling and packaging machine.

　なお、本発明の上記充填包装機においては、さらに下記のような構成にすることがより好ましい解決手段となる。即ち、
（１）前記押え手段は、前記筒状の包装用フィルムを全幅にわたって押さえる押えバーからなること、
（２）前記押え手段は、前記筒状の包装用フィルムの折返し辺部分をその全長にわたって押さえる押え板からなること、
（３）前記絞り手段は、一対の絞り板からなること、
（４）前記一対の絞り板の少なくとも一方は、先端部にガス吹き出し口を有すること、
（５）前記押え板は、前記筒状の包装用フィルムのフィルム幅によって位置調整可能に構成されていること、
（６）前記押え板による横シールロールの軸線方向の押さえ幅は、前記筒状の包装用フィルムのフィルム幅の１～５０％であること、
（７）前記押えバーは、前記横シールロールの各ヒートシールバーの回転方向手前側に、該ヒートシールバーに隣接して設けること、
である。 In the filling and packaging machine of the present invention, the following configuration is a more preferable solution. That is,
(1) The presser means comprises a presser bar that presses the tubular packaging film over its entire width.
(2) The presser means comprises a presser plate that holds down the folded side portion of the tubular packaging film over its entire length.
(3) The diaphragm means comprises a pair of diaphragm plates;
(4) At least one of the pair of diaphragms has a gas outlet at the tip.
(5) The presser plate is configured to be position-adjustable according to the film width of the tubular packaging film,
(6) The pressing width in the axial direction of the horizontal seal roll by the pressing plate is 1 to 50% of the film width of the cylindrical packaging film,
(7) The presser bar is provided adjacent to the heat seal bar on the front side in the rotational direction of each heat seal bar of the horizontal seal roll;
It is.

　この発明の液状被包装物の充填包装方法およびその方法を利用した充填包装機では、横シールロールの周面に設けられた複数本のヒートシールバー間に、少なくとも包装用フィルムの折返し辺に相当する部分を押さえつける押え手段を設けたことにより、該押え手段によって、一の横シール部から次の横シール部の形成までの間の、包装用フィルムの折返し辺部分が、スプリングバックによって膨らむのを防止することができるため、充填された液状被包装物が該折返し辺部分を伝って次の横シール部内に吸い上げられるのを有効に阻止することができる。 In the filling and packaging method of the liquid package according to the present invention and the filling and packaging machine using the method, at least the folding side of the packaging film is provided between the plurality of heat seal bars provided on the peripheral surface of the transverse seal roll. By providing the pressing means for pressing the portion to be pressed, the folded-back side portion of the packaging film from the one horizontal seal portion to the next horizontal seal portion is swelled by the spring back. Since it can prevent, it can prevent effectively that the filled liquid to-be-packaged object is sucked up in the next horizontal seal part along this folding | turning edge part.

　また、本発明では、包装用フィルムを二つ折りにした後、側縁部分に縦シール部を形成して筒状とし、その筒状の包装用フィルム（以下、「筒状フィルム」と言う。）内に液状の被包装物を充填包装するに際し、前記筒状フィルムを、両側面から絞り手段によって間欠的に挟み込んで（絞り込んで）、充填ノズルから供給された液状被包装物の筒状フィルム内での進行を一時的に阻止する。これにより、前記絞り手段の下側には、液状被包装物が介在しない部分が間欠的に形成されることになり、該部分に、一対の横シールロールによって横シール部を形成することで、横シール部内への液状被包装物、とくには液状被包装物に含まれる粒状物等の噛み込みを有効に阻止することができる。したがって、たとえ液状被包装物に粒状物等が含まれていたとしても、該粒状物等が横シール部に噛み込まれることがなく、液状被包装物を液中シール充填によって連続的に充填包装することができるため、生産性を向上させることができる。 In the present invention, after the packaging film is folded in two, a vertical seal portion is formed on the side edge portion to form a tubular shape, and the tubular packaging film (hereinafter referred to as “tubular film”). When filling and packaging a liquid package in the inside, the tubular film is intermittently sandwiched (squeezed out) from both sides by a squeezing means, and inside the cylindrical film of the liquid package to be supplied from the filling nozzle Temporarily prevent progress in Thereby, on the lower side of the squeezing means, a portion where the liquid package is not interposed is intermittently formed, and in this portion, a lateral seal portion is formed by a pair of lateral seal rolls, It is possible to effectively prevent the liquid packaging material, particularly the granular material contained in the liquid packaging material, from entering the horizontal seal portion. Therefore, even if the liquid package includes particulates, the granular material does not get caught in the horizontal seal portion, and the liquid package is continuously filled and packed by submerged seal filling. Therefore, productivity can be improved.

　また、前記絞り手段は、一対の絞り板からなることが好ましく、その一対の絞り板の少なくとも一方の先端部にガス吹き出し口を設け、該ガス吹き出し口から吹き出されたガスの圧力によって筒状フィルムを振動させ、該筒状フィルム内に介在する液状物および粒状物等をしごき出すことで、横シール部内への液状被包装物の噛み込みを、さらに効果的に抑制することができる。さらに、ガスの圧力を利用することで、絞り板によって直接、筒状フィルムを挟み込んでしごく動作を補助することができ、すべり性が高まって筒状フィルムが傷つくようなおそれもない。 The throttle means is preferably composed of a pair of diaphragm plates, and a gas film is provided at the tip of at least one of the pair of diaphragm plates, and the tubular film is formed by the pressure of the gas blown from the gas nozzle. Is oscillated to squeeze out liquid substances, granular substances, and the like intervening in the tubular film, and thereby the biting of the liquid package into the horizontal seal portion can be further effectively suppressed. Furthermore, by utilizing the pressure of the gas, the tubular film can be directly sandwiched by the diaphragm plate to assist the squeezing operation, and there is no possibility that the tubular film is damaged due to an increase in slipperiness.

　また、前記押え手段が、前記筒状の包装用フィルムの折返し辺部分をその全長にわたって押さえる押え板からなる場合には、該折返し辺部分への液状被包装物の進入が完全に阻止されるため、該折返し辺部分を伝って横シール部内に液状被包装物が吸い上げられる可能性がなく、一方、押え手段が、筒状の包装用フィルムを全幅にわたって押さえる押えバーからなる場合には、前記折返し辺部分のみならず、包装用フィルム全幅にわたって充填された液状被包装物の、該包装用フィルム内壁面に沿った吸い上げが抑制されるため、横シール部内への液状被包装物の噛み込みを有効に阻止することができる。さらに、押え手段として上記した押え板と押えバーの両方を設けた場合には、横シール部内への噛み込み抑制効果を一層効果的に発揮することができる。 Further, in the case where the holding means is formed of a holding plate that holds the folded side portion of the tubular packaging film over its entire length, entry of the liquid article to the folded side portion is completely prevented. In the case where there is no possibility that the liquid package is sucked up into the lateral seal portion along the folded side portion, while the holding means is composed of a holding bar that holds the tubular packaging film over its entire width, The liquid package filled over the entire width of the packaging film as well as the side portions is prevented from being sucked up along the inner wall surface of the packaging film. Can be prevented. Furthermore, when both the above-described presser plate and the presser bar are provided as the presser means, the effect of suppressing biting into the lateral seal portion can be more effectively exhibited.

　また、本発明は、前記一対の絞り板を、包装用フィルムの品種や充填条件に基づいて相互に近接または離間する位置に変位可能としたこと、また押え板を筒状フィルムのフィルム幅によって位置調整できるようにしたことにより、包装用フィルムの厚みや、液状被包装物の種類、包装体の容量等に係わらず、種々の包装体の製造に有効に利用することができる。 In the present invention, the pair of diaphragms can be displaced to positions close to or away from each other based on the type of packaging film and filling conditions, and the presser plate is positioned according to the film width of the tubular film. By being able to adjust, regardless of the thickness of the packaging film, the type of the liquid package, the capacity of the package, etc., it can be effectively used for the production of various packages.

　また、前記押え板による横シールロールの軸線方向の押さえ幅を、筒状フィルム幅の１～５０％としたこと、また前記押えバーを横シールロールのヒートシールバーに隣接して設けたことにより、液状被包装物の包装用フィルム内への充填が邪魔されることなく、かつ包装袋の内容積が過度に減少することなく、充填した液状被包装物の毛細管作用による吸い上げが抑制され、横シール部内への液状被包装物の噛み込みを確実に阻止することができる。 Further, the holding width in the axial direction of the horizontal seal roll by the press plate is set to 1 to 50% of the tubular film width, and the press bar is provided adjacent to the heat seal bar of the horizontal seal roll. Thus, the filling of the liquid packaging material into the packaging film is not obstructed, and the internal volume of the packaging bag is not excessively reduced. It is possible to reliably prevent the liquid package from biting into the seal portion.

この発明の充填包装機の一実施例としての縦型充填包装機の構成を示す模式図である。It is a schematic diagram which shows the structure of the vertical filling packaging machine as one Example of the filling packaging machine of this invention. 充填包装機の横シール部形成部を拡大して示す斜視図の一実施形態である。It is one Embodiment of the perspective view which expands and shows the horizontal seal | sticker part formation part of a filling packaging machine. 充填包装機の横シール部形成部を拡大して示す他の実施形態であり、（ａ）は斜視図、（ｂ）はＡ－Ａ位置における端面図である。It is other embodiment which expands and shows the horizontal seal | sticker part formation part of a filling packaging machine, (a) is a perspective view, (b) is an end view in an AA position. 図２に示す実施形態の充填包装機の、横シール部形成部による液状被包装物の充填方法を示す説明図であり、（ａ）は筒状フィルム内に液状被包装物が充填された状態、（ｂ）は一対の絞り板によって筒状フィルムが絞り込まれた状態、（ｃ）は一対の横シールロールによって筒状フィルムに横シール部を形成した状態を示している。It is explanatory drawing which shows the filling method of the liquid package by the horizontal seal | sticker part formation part of the filling packaging machine of embodiment shown in FIG. 2, (a) is the state with which the liquid package was filled in the cylindrical film (B) has shown the state by which the cylindrical film was narrowed down by a pair of aperture plate, (c) has shown the state by which the horizontal seal part was formed in the cylindrical film by a pair of horizontal seal roll.

　以下にこの発明の一実施形態を図面に示すところに基づいて説明する。
　図１は、この発明の充填包装機の一実施例としての縦型充填包装機の構成を示す模式図である。 An embodiment of the present invention will be described below based on the drawings.
FIG. 1 is a schematic diagram showing the configuration of a vertical filling and packaging machine as an embodiment of the filling and packaging machine of the present invention.

　この縦型充填包装機は、例えば、２軸延伸したエチレン－ビニルアルコール共重合体樹脂等からなるベースフィルム層と、例えば無延伸のエチレン－ビニルアセテート共重合体樹脂等からなるシーラント層とを積層した積層フィルムからなる１枚の長尺の包装用フィルムをその長手方向に走行させながら、そのシーラント層が互いに向かい合わせになるように幅方向に折り返してその両側縁部同士を重ね合わせて、その包装用フィルムから多数の包装袋を製袋しつつ、各包装袋内に飲食物、調味料、医薬品、化粧品その他の液状ないし粘稠状あるいはゼリー状等の流動性物質からなる被包装物を自動的に充填するものである。この縦型充填包装機は、図１に示すように、主としてフィルム折返し部１と、縦シール部形成部２と、被包装物供給部３と、第１の横シール部形成部４ａと、第２の横シール部形成部４ｂと、包装袋を単包または複数包ずつに切断する切断部５とを具えてなる。以下、被包装物として粒状物等を含む液状被包装物を用いた場合を一例として説明する。 This vertical filling and packaging machine is formed by laminating a base film layer made of, for example, a biaxially stretched ethylene-vinyl alcohol copolymer resin and a sealant layer made of, for example, an unstretched ethylene-vinyl acetate copolymer resin. While running a long packaging film made of the laminated film in the longitudinal direction, the sheet is folded back in the width direction so that the sealant layers face each other, and both side edges are overlapped with each other. While making a large number of packaging bags from packaging film, each package bag automatically loads foods, seasonings, pharmaceuticals, cosmetics and other liquid or viscous or jelly-like fluid materials. Filling. As shown in FIG. 1, the vertical filling and packaging machine mainly includes a film folding portion 1, a vertical seal portion forming portion 2, an article supply portion 3, a first horizontal seal portion forming portion 4 a, 2 side seal part forming part 4b, and the cutting part 5 which cut | disconnects a packaging bag for each single package or multiple packages. Hereinafter, a case where a liquid package including a granular material or the like is used as the package will be described as an example.

　図１のフィルム折返し部１では、フィルムロールＲから連続的あるいは間欠的に繰出される１枚の長尺の包装用フィルム６を上方から下方へ走行させながら、その走行中にＵ字状および逆Ｌ字状の２本のガイドロッド７で案内しつつ包装用フィルム６をそのシーラント層が互いに向かい合わせになるように幅方向に折り返して、図では包装用フィルム６の左端部に位置するその両側縁部同士を重ね合わせる。 In the film folding section 1 of FIG. 1, while a single long packaging film 6 fed out from a film roll R continuously or intermittently travels from the top to the bottom, it is U-shaped and reversed during the travel. While being guided by two L-shaped guide rods 7, the packaging film 6 is folded back in the width direction so that the sealant layers face each other, and in the figure, the both sides located at the left end of the packaging film 6. Overlapping edges.

　縦シール部形成部２では、包装用フィルム６の折り返して重ね合わせた両側縁部同士を１対の縦シールロール８によって包装用フィルム６の長手方向（縦方向）に加熱および加圧して縦シール部１３を形成し、これにより包装用フィルム６を筒状にした筒状フィルム１５を形成する。 In the vertical seal portion forming portion 2, both side edges of the packaging film 6 folded and overlapped are heated and pressurized in the longitudinal direction (vertical direction) of the packaging film 6 by a pair of vertical seal rolls 8 to vertically seal. A portion 13 is formed, thereby forming a tubular film 15 in which the packaging film 6 is formed into a tubular shape.

　この縦シール部形成部２は、図では紙面と直交する方向に並んで互いに平行に水平に延在する１対の縦シールロール８と、それら１対の縦シールロール８を図示しない歯車組を介して互いに逆向きにかつ等速度で回転駆動するモータ９と、それら１対の縦シールロール８を互いの接近方向へ付勢するように、縦シールロール８の支持軸の両端部をそれぞれ支持する軸受け部に設けられた１対のエアシリンダ１０と、を具えている。 The vertical seal portion forming portion 2 includes a pair of vertical seal rolls 8 that are arranged in a direction perpendicular to the paper surface and extend in parallel with each other in the drawing, and a gear set (not shown) for the pair of vertical seal rolls 8. The motor 9 that is rotationally driven in the opposite direction and at the same speed via the two, and both ends of the support shaft of the vertical seal roll 8 are supported so as to bias the pair of vertical seal rolls 8 toward each other. And a pair of air cylinders 10 provided in the bearing portion.

　ここで、１対の縦シールロール８は各々、その外周面上に１つの環状フランジ８ａを有するとともに、その内部に環状フランジ８ａを加熱する図示しないヒータを有し、上記１対のエアシリンダ１０の押圧力によって、筒状フィルム１５の重ね合わせた両側縁部をそれらの環状フランジ８ａの間に挟持して加圧しつつ、ヒータから環状フランジ８ａに伝えた熱で加熱することで、その両側縁部のシーラント層同士を溶着させて縦シール部１３を形成しつつ、その回転により筒状フィルム１５を下方へ走行させる。 Here, each of the pair of vertical seal rolls 8 has one annular flange 8a on the outer peripheral surface thereof, and a heater (not shown) for heating the annular flange 8a therein, and the pair of air cylinders 10 described above. The two side edges of the cylindrical film 15 are heated by the heat transmitted from the heater to the annular flange 8a while being pressed between the annular flanges 8a by pressing the opposite side edges of the tubular film 15 by the pressing force of While the sealant layers of the portions are welded together to form the vertical seal portion 13, the cylindrical film 15 is caused to travel downward by the rotation.

　被包装物供給部３では、図示しないタンクから図示しないポンプおよび供給路を介して供給された液状被包装物Ｍを、上記１対の縦シールロール８の間を上方から下方へ貫通している充填ノズル１１によって、筒状フィルム１５の内側へ所定量ずつ充填する。 In the package supply unit 3, the liquid package M supplied from a tank (not shown) through a pump (not shown) and a supply path passes through the pair of vertical seal rolls 8 from above to below. The filling nozzle 11 fills the inside of the tubular film 15 by a predetermined amount.

　第１の横シール部形成部４ａでは、筒状フィルム１５をその長手方向に一定間隔をおいて、１対の横シールロール１２によって全幅に亘り加熱しつつ加圧して互いに溶着させて間欠的に横シール部１４を形成する。その後、第２の横シール部形成部４ｂで、横シール部１４を再押圧して該シールを確実なものとし、これにより多数の包装袋Ｗを筒状フィルム１５の長手方向へ繋がった状態で製袋する。次いで、連続した包装袋Ｗの、横シール部１４の略中間部を切断部５によって切断することで、個々の包装袋Ｗが得られることになる。 In the first horizontal seal portion forming portion 4a, the cylindrical film 15 is heated at a constant interval in the longitudinal direction while being heated over the entire width by a pair of horizontal seal rolls 12, and welded to each other intermittently. A lateral seal portion 14 is formed. Thereafter, in the second horizontal seal portion forming portion 4b, the horizontal seal portion 14 is re-pressed to secure the seal, whereby a large number of packaging bags W are connected in the longitudinal direction of the tubular film 15. Make a bag. Next, individual packaging bags W are obtained by cutting the substantially intermediate portion of the lateral seal portion 14 of the continuous packaging bags W by the cutting portion 5.

　なお、第１および第２の横シール部形成部４ａおよび４ｂにおける１対の横シールロール１２は、歯車組を介してモータで互いに逆向きにかつ等速で回転駆動し、第１の横シール部形成部４ａについて代表で図２に拡大して示すように、外周面上に周方向に等間隔に位置して軸線方向へ延在する複数本（図では４本）のヒートシールバー１２ａを有し、該ヒートシールバー１２ａによって筒状フィルム１５を挟持して横シール部１４を形成または補強する。なお、各横シールロール１２にはそれぞれ、ヒートシールバー１２ａを加熱するヒータが内蔵されている。 The pair of horizontal seal rolls 12 in the first and second horizontal seal portion forming portions 4a and 4b are driven to rotate at opposite speeds at a constant speed by a motor via a gear set, and the first horizontal seal roll 12 is rotated. As representatively showing the portion forming portion 4a in an enlarged manner in FIG. 2, a plurality (four in the figure) of heat seal bars 12a extending in the axial direction are arranged on the outer peripheral surface at equal intervals in the circumferential direction. The horizontal seal portion 14 is formed or reinforced by sandwiching the tubular film 15 by the heat seal bar 12a. Each horizontal seal roll 12 has a built-in heater for heating the heat seal bar 12a.

　この充填包装機では、図２に示すように、１対の横シールロール１２の複数本（図では４本）のヒートシールバー１２ａの各間に、少なくとも筒状フィルム１５の折返し辺６ａに相当する部分を押さえ付ける押え手段１７を設けた点に特徴がある。なお、図２は一実施形態として、押え手段１７が、筒状フィルム１５の折返し辺６ａ部分をその全長にわたって押さえる部分円筒面を有する押え板１８ａ、１８ｂからなる場合を示している。
　この押え板１８ａ、１８ｂによれば、１対のヒートシールバー１２ａによる一の横シール後の筒状フィルム１５の、少なくとも折返し辺６ａを含む部分が部分的に押さえ付けられることになるため、横シール部１４間の、該折返し辺６ａが全長に亘りスプリングバックによって原形状に戻る（膨らむ）ことがない。したがって、一の横シール後に筒状フィルム１５内に充填された液状被包装物が折返し辺６ａを伝って吸い上げられることがなく、次の横シール部１４内に液状被包装物が噛み込まれてしまうおそれがない。なお、図２では、包装袋Ｗが３方シール袋からなる場合を示しているが、この押え板１８ａ、１８ｂは、背貼りシール袋のように両側に折返しのある袋等にも好適に用いることができる。 In this filling and packaging machine, as shown in FIG. 2, at least between the plurality of (four in the figure) heat seal bars 12 a of the pair of horizontal seal rolls 12, the corrugated side corresponds to at least the folded side 6 a of the tubular film 15. This is characterized in that a pressing means 17 for pressing the portion to be pressed is provided. FIG. 2 shows a case where the presser means 17 includes presser plates 18a and 18b having partial cylindrical surfaces that press the folded side 6a portion of the tubular film 15 over its entire length as an embodiment.
According to the holding plates 18a and 18b, at least a portion including the folded side 6a of the tubular film 15 after one horizontal sealing by the pair of heat seal bars 12a is partially pressed. The folded side 6a between the seal portions 14 does not return (expand) to the original shape by the spring back over the entire length. Accordingly, the liquid package to be packed in the cylindrical film 15 after one horizontal seal is not sucked up along the folded side 6a, and the liquid package is bitten in the next horizontal seal portion 14. There is no fear of it. FIG. 2 shows a case where the packaging bag W is formed of a three-side seal bag. However, the presser plates 18a and 18b are preferably used for a bag that is folded on both sides, such as a back-sealed seal bag. be able to.

　なお、押え板１８ａ、１８ｂは、少なくとも筒状フィルム１５の折返し辺６ａを押し付けることができればよく、図２に示すような部分円筒面を有するものが好ましい。押え板１８ａ、１８ｂは、好ましくは、横シールロール１２の軸線方向の押さえ幅を、前記筒状フィルム１５のフィルム幅の１～５０％、より好ましくは１～２０％とする。これは、適正かつ必要な充填物容量を確保するためであり、これによれば、液状被包装物を充填する際に、該押え板１８ａ、１８ｂが邪魔になることがなく、かつ、包装袋の内容積が過度に減少することなく確実に筒状フィルム１５の折返し辺６ａを押さえ付けることができる。また、押え板１８ａ、１８ｂの横シールロール１２の軸線方向の板幅は、ヒートシールバー１２ａ幅の１～８０％であることが好ましい。 The press plates 18a and 18b only need to be able to press at least the folded side 6a of the tubular film 15, and preferably have a partial cylindrical surface as shown in FIG. The pressing plates 18a and 18b preferably have a pressing width in the axial direction of the horizontal seal roll 12 of 1 to 50%, more preferably 1 to 20% of the film width of the tubular film 15. This is to ensure an appropriate and necessary filling volume, and according to this, the presser plates 18a and 18b do not get in the way when filling the liquid package, and the packaging bag. The folded side 6a of the tubular film 15 can be reliably pressed without excessively reducing the inner volume of the tube film 15. Further, the plate width in the axial direction of the horizontal seal roll 12 of the holding plates 18a, 18b is preferably 1 to 80% of the width of the heat seal bar 12a.

　また、押え板１８ａ、１８ｂは、ビス、ボルト等によって、ヒートシールバー１２ａ間に簡単に取り付けることができるため、メンテナンスが容易であると共に、押え板１８ａ、１８ｂを、筒状フィルム１５のフィルム幅に合わせて設置位置を調整することで、種々の包装体の製造に利用することができる。また、押え板１８ａ、１８ｂと横シールロール１２のロール表面との間にシムを挟み込むことで高さを適宜調整することもできる。 Further, since the holding plates 18a and 18b can be easily attached between the heat seal bars 12a with screws, bolts, etc., maintenance is easy and the holding plates 18a and 18b are attached to the film width of the tubular film 15. By adjusting the installation position according to the above, it can be used for manufacturing various packages. Further, the height can be appropriately adjusted by sandwiching shims between the press plates 18 a and 18 b and the roll surface of the horizontal seal roll 12.

　図３は、横シール部形成部の他の実施形態であり、押え手段１７が、押えバー１９ａ、１９ｂからなり、図３（ａ）は斜視図および図３（ｂ）は図３（ａ）のＡ－Ａ位置における端面図である。押えバー１９ａ、１９ｂは、各ヒートシールバー１２ａの回転方向の手前位置に、該ヒートシールバー１２ａに隣接して設け、好ましくはヒートシールバー１２ａから０．１～３０ｍｍ離れた位置、より好ましくは０．１～１５ｍｍ離れた位置に設ける。なお、図では、押えバー１９ａ、１９ｂをヒートシールバー１２ａと平行に設けているが、それに限定されるものではなく、液状被包装物の粘性や充填量等に合わせて、ヒートシールバー１２ａに対して斜めに設けて、筒状フィルム１５を適宜押さえ付けられるようにしてもよい。また、押えバー１９ａ、１９ｂの、横シールロール１２の軸線方向の幅を、ヒートシールバー１２ａと略同幅とすれば、筒状フィルム１５を全幅にわたって押さえ付けることができるため、一の横シール部１４形成後に筒状フィルム１５内に充填された液状被包装物が、折返し辺６ａのみならず、筒状フィルム１５内壁面に沿って吸い上げられるのを阻止することができ、次の横シール部１４内に液状被包装物が噛み込まれてしまうのを有効に抑制することができる。なお、この押えバー１９ａ、１９ｂは、三方シール袋および背貼りシール袋のように折返しのある袋の他、四方シール袋等においても同様の効果を発揮することができる。 FIG. 3 shows another embodiment of the horizontal seal portion forming portion, in which the pressing means 17 includes presser bars 19a and 19b. FIG. 3 (a) is a perspective view and FIG. 3 (b) is FIG. 3 (a). It is an end elevation in AA position. The presser bars 19a and 19b are provided adjacent to the heat seal bar 12a at a position in front of the rotation direction of each heat seal bar 12a, preferably at a position 0.1 to 30 mm away from the heat seal bar 12a, more preferably Provided at a position 0.1 to 15 mm apart. In the figure, the presser bars 19a and 19b are provided in parallel with the heat seal bar 12a. However, the present invention is not limited to this, and the heat seal bar 12a is provided in accordance with the viscosity or the filling amount of the liquid package. On the other hand, it may be provided obliquely so that the tubular film 15 can be appropriately pressed. Moreover, if the width of the press bar 19a, 19b in the axial direction of the horizontal seal roll 12 is substantially the same as that of the heat seal bar 12a, the tubular film 15 can be pressed over the entire width, so that one horizontal seal It is possible to prevent the liquid package filled in the cylindrical film 15 after the formation of the portion 14 from being sucked up along the inner wall surface of the cylindrical film 15 as well as the folded side 6a. It is possible to effectively suppress the liquid package from being bitten in the container 14. Note that the presser bars 19a and 19b can exhibit the same effect in a four-side sealed bag as well as a folded bag such as a three-side sealed bag and a back-sealed seal bag.

　なお、押えバー１９ａ、１９ｂは、表面形状が図３に示すように円弧状からなるものの他、平坦なものや山型状等からなり、その何れであっても横シールロール１２のロール軸表面からの最高高さが、ヒートシールバー１２ａ高さに対して好ましくは－２～＋５ｍｍ、より好ましくは０～＋２ｍｍとなるようにする。これによれば、包装用フィルムを確実に押さえ付けることができるため、筒状フィルム１５内に充填された液状被包装物が、次の横シール部１４位置まで吸い上げられるのを有効に阻止することができる。 The presser bars 19a and 19b have a surface shape that is circular as shown in FIG. 3, or a flat shape or a chevron shape. Is preferably −2 to +5 mm, more preferably 0 to +2 mm with respect to the height of the heat seal bar 12a. According to this, since the packaging film can be surely pressed, it is possible to effectively prevent the liquid package to be packed in the cylindrical film 15 from being sucked up to the next position of the lateral seal portion 14. Can do.

　また、押えバー１９ａ、１９ｂは、テフロン（登録商標）、シリコン、プラチックの他、弾性のある金属等によって形成することができるが、ヒートシールバー１２ａに隣接して設けることから断熱性を有する材質からなることが好ましい。 The presser bars 19a and 19b can be formed of Teflon (registered trademark), silicon, plastic, elastic metal, or the like. However, since the presser bars 19a and 19b are provided adjacent to the heat seal bar 12a, a material having heat insulation properties. Preferably it consists of.

　さらに、押えバー１９ａ、１９ｂの筒状フィルム１５走行方向の幅は、好ましくは０．５～５０ｍｍ、より好ましくは２～１０ｍｍとする。これによれば、包装袋の内容積が過度に減少することなく確実に筒状フィルム１５を全幅にわたって押さえつけることができる。 Furthermore, the width of the presser bars 19a, 19b in the traveling direction of the cylindrical film 15 is preferably 0.5 to 50 mm, more preferably 2 to 10 mm. According to this, the cylindrical film 15 can be reliably pressed down over the entire width without excessively reducing the internal volume of the packaging bag.

　なお、押え手段１７として、押え板１８ａ、１８ｂと押えバー１９ａ、１９ｂとを合わせて設けてもよく、この場合には、筒状フィルム１５内に充填した液状被包装物が、折返し辺６ａおよび筒状フィルム１５内壁面に沿って吸い上げられるのをより一層効果的に阻止することができ、次の横シール部１４内に液状被包装物が噛み込まれてしまうのを有効に抑制することができる。 In addition, as the pressing means 17, the pressing plates 18a and 18b and the pressing bars 19a and 19b may be provided together. In this case, the liquid package to be filled in the tubular film 15 is provided with the folded sides 6a and Suctioning along the inner wall surface of the tubular film 15 can be more effectively prevented, and the liquid package can be effectively suppressed from being bitten into the next horizontal seal portion 14. it can.

　さらに、この充填包装機では、図２に示すように、筒状フィルム１５の走行方向で、第１の横シール部形成部４ａの、一対の横シールロール１２による横シール部１４の形成位置の手前に、絞り手段１６を設けることが好ましい。なお、絞り手段１６は、図２に示す一対の絞り板１６ａ、１６ｂを用いることが好ましいが、その他、一対の絞りロール等、走行する筒状フィルム１５を両側面から絞り込むことができればどのような機構であってもよい。 Further, in this filling and packaging machine, as shown in FIG. 2, in the traveling direction of the tubular film 15, the formation position of the lateral seal portion 14 by the pair of lateral seal rolls 12 of the first lateral seal portion forming portion 4 a is determined. It is preferable to provide the throttle means 16 in front. The diaphragm means 16 preferably uses a pair of diaphragm plates 16a and 16b shown in FIG. 2, but any other means can be used as long as the traveling cylindrical film 15 such as a pair of diaphragm rolls can be narrowed from both sides. It may be a mechanism.

　この絞り手段１６としての一対の絞り板１６ａ、１６ｂは、筒状フィルム１５の側面を挟むように配置され、該絞り板１６ａ、１６ｂが、筒状フィルム１５の両側面を所要のタイミングで間欠的に挟み込む（絞り込む）ことで、充填される液状被包装物の筒状フィルム１５内での降下を一時的に阻止するように機能する。
　なお、絞り手段１６は、液状被包装物中に含まれる空気をしごき出す機能および包装袋の形状と被包装物の充填量を安定化させる働きをも有している。 The pair of diaphragm plates 16a and 16b as the diaphragm means 16 are arranged so as to sandwich the side surface of the cylindrical film 15, and the diaphragm plates 16a and 16b intermittently pass through both sides of the cylindrical film 15 at a required timing. By being sandwiched (squeezed), it functions to temporarily prevent the liquid package to be filled from descending in the tubular film 15.
The squeezing means 16 also has a function of squeezing out air contained in the liquid package and a function of stabilizing the shape of the packaging bag and the filling amount of the package.

　この絞り手段１６の上記機能によって、筒状フィルム１５内には、絞り手段１６の下側に、液状物および粒状物等の降下が阻まれて、それらが介在しない部分が間欠的に形成されることになり、この部分に後段の横シールロール１２によって横シール部１４を形成することで、該横シール部１４内への液状物および粒状物等の噛み込みを有効に阻止することができる。したがって、絞り手段１６によれば、液状被包装物を横シール部１４内への噛み込みを阻止しながら連続充填包装することもできるようになる。 Due to the above function of the squeezing means 16, the liquid film and the granular material are prevented from descending in the tubular film 15 below the squeezing means 16, and portions where they are not interposed are intermittently formed. Thus, by forming the horizontal seal portion 14 at this portion by the horizontal seal roll 12 at the subsequent stage, it is possible to effectively prevent the liquid material and the granular material from being caught in the horizontal seal portion 14. Therefore, according to the squeezing means 16, the liquid package can be continuously filled and packaged while preventing biting into the lateral seal portion 14.

　なお、一対の絞り板１６ａ、１６ｂは、間に筒状フィルム１５を挟んで相互に近接する方向、および相互に離間する方向へ、例えば揺動等により変位可能に構成されている。
　この絞り手段１６の変位のタイミングや、閉時間（相互に近接状態にある時間）、開時間（相互に離間状態にある時間）等は、マイクロコンピュータ等からなる制御手段によってコントロールされ、例えば、後述する生産条件設定手段によって入力される包装用フィルム６の包装形態やフィルム構成等の品種、被包装物の充填量や包装用フィルム６の繰り出し速度等の充填条件の入力値に基づいて所定の演算処理を行って算出される。なお、制御手段は、充填包装機のメインコンピュータとして機能する制御手段と兼用してもよい。 The pair of diaphragm plates 16a and 16b are configured to be displaceable by, for example, swinging in a direction in which they are close to each other with the tubular film 15 interposed therebetween and in a direction in which they are separated from each other.
The timing of displacement of the aperture means 16, the closing time (time in which they are close to each other), the opening time (time in which they are separated from each other) and the like are controlled by control means such as a microcomputer. A predetermined calculation based on the input values of the filling conditions such as the packaging form and film configuration of the packaging film 6 inputted by the production condition setting means, the filling amount of the article to be packaged and the feeding speed of the packaging film 6 Calculated by performing processing. The control means may also be used as the control means that functions as the main computer of the filling and packaging machine.

　生産条件設定手段は、例えばテンキー等の入力手段や前記入力手段による設定値を表示するモニタを一体に備えたタッチパネルから構成されるもので、充填包装機の包装用フィルム６の包装形態（包装袋Ｗの長さ（シールピッチ））やフィルム構成等の品種およびフィルムの繰り出し速度等の充填条件を設定および変更可能としている。
　この生産条件設定手段は、さらに絞り手段１６の変位動作や横シール速度等を経時的にグラフで表示する動作モニタを有し、目視で絞り手段１６の変位状態を確認することができると共に、適宜、変位のタイミングや上記開閉時間、絞り手段１６の近接距離等が調整（入力）できるようになっている。
　また、生産条件設定手段は、包装用フィルム６の品種や充填条件に応じた生産条件を記憶するためのバックアップＲＡＭやＥＥＰＲＯＭ等の記憶手段を有している。 The production condition setting means is composed of an input means such as a numeric keypad and a touch panel integrally provided with a monitor for displaying a set value by the input means, and is a packaging form (packaging bag) of the packaging film 6 of the filling and packaging machine. It is possible to set and change filling conditions such as W length (seal pitch)), film configuration, and film feed speed.
The production condition setting means further includes an operation monitor that displays the displacement operation of the throttle means 16 and the lateral seal speed in a graph over time, so that the displacement state of the throttle means 16 can be confirmed visually and appropriately. The displacement timing, the opening / closing time, the proximity distance of the aperture means 16 and the like can be adjusted (input).
Further, the production condition setting means has storage means such as a backup RAM or EEPROM for storing production conditions corresponding to the type and filling conditions of the packaging film 6.

　なお、絞り板１６ａ、１６ｂは、金属、テフロン（登録商標）等の低摩擦の樹脂材料、ＭＣナイロン、ポリアセタール、超高分子ポリエチレン等から構成され、一対の絞り板１６の少なくとも一方の先端部には、ガス吹き出し口を有することが好ましい。このガス吹き出し口からは、絞り板１６が閉方向に変位した状態で筒状フィルム１５に向かって、連続的または間欠的に、例えば空気や窒素等の不燃性のガスが吹き出され、このガスの圧力による振動によって筒状フィルム１５内に介在する液状物および粒状物等が効果的にしごき出される。なお、ガス吹き出し口からのガスの吹き出し方向は、筒状フィルム１５に向かって上向き、垂直または下向きのいずれであっても、同様の効果が期待できる。
　なお、ガスの圧力による液状物および粒状物等のしごき出しの効果は、ガスを筒状フィルム１５に向かって、折返し辺６ａからフィルム幅の少なくとも３０％の範囲に吹き出すことで有効に発揮される。また、ガスの吹き出しタイミングや時間、圧力等は、上記生産条件設定手段において設定することができる。 The diaphragm plates 16a and 16b are made of metal, a low-friction resin material such as Teflon (registered trademark), MC nylon, polyacetal, ultra-high molecular polyethylene, or the like, and are attached to at least one end portion of the pair of diaphragm plates 16. Preferably has a gas outlet. From this gas outlet, incombustible gas such as air or nitrogen is blown out continuously or intermittently toward the tubular film 15 with the diaphragm plate 16 displaced in the closing direction. Liquid matter and granular matter intervening in the cylindrical film 15 are effectively squeezed out by vibration due to pressure. Note that the same effect can be expected regardless of whether the gas blowing direction from the gas blowing port is upward, vertical or downward toward the tubular film 15.
In addition, the effect of squeezing out liquids and particulates due to the gas pressure is effectively exhibited by blowing the gas toward the tubular film 15 from the folded side 6a to a range of at least 30% of the film width. . The gas blowing timing, time, pressure, etc. can be set by the production condition setting means.

　次に、絞り板１６ａ、１６ｂを利用した液状被包装物の充填包装方法について図４を用いて説明する。図４（ａ）、（ｂ）、（ｃ）中、左側の図、中央の図および右側の図は、１対のヒートシールロール１２、絞り板１６ａ、１６ｂおよび押え手段１７としての押え板１８ａ、１８ｂの左側面図、正面図（図では後方側のもののみ示す。）および右側面図をそれぞれ示す。
　図４（ａ）は、一対のヒートシールバー１２ａによって横シール部１４が形成されると共に、筒状フィルム１５内に充填ノズル１１から液状被包装物が充填された状態を示している。この時、一対の絞り板１６ａ、１６ｂは相互に離間した開位置にある。また、筒状フィルム１５の折返し辺６ａは、押え板１８ａ、１８ｂによって押さえつけられ始められた状態となっている。
　図４（ｂ）は、制御手段からの絞り板１６ａ、１６ｂに対する指示に従い、一対の絞り板１６ａ、１６ｂが相互に近接する方向への変位を開始し、筒状フィルム１５を両側面から絞り込み、液状被包装物の筒状フィルム１５での降下が阻止された状態を示している。この間、筒状フィルム１５の折返し辺６ａは、その長手方向の一部を押え板１８ａ、１８ｂによって押さえつけられた状態となっている。
　図４（ｃ）は、一対のヒートシールバー１２ａが、図４（ｂ）において被包装物の降下が阻まれた筒状フィルム１５箇所に到達し、その位置にヒートシールを施して横シール部１４を形成した状態を示している。このタイミングに合わせて、制御手段からの指示により絞り板１６ａ、１６ｂが開方向への変位を開始し、液状被包装物の筒状フィルム１５内への充填が再開する。
　この図４（ａ）～図４（ｃ）の動作を繰り返すことによって、液状被包装物を、たとえ連続充填した場合においても横シール部１４に噛み込むことなく充填包装することができる。 Next, a filling and packaging method for a liquid package using the diaphragm plates 16a and 16b will be described with reference to FIG. 4A, 4 </ b> B, and 4 </ b> C, the left side view, the center view, and the right side view are a pair of heat seal rolls 12, diaphragm plates 16 a and 16 b, and a press plate 18 a as a presser unit 17. , 18b are a left side view, a front view (only the rear side is shown in the figure) and a right side view, respectively.
FIG. 4A shows a state in which the horizontal seal portion 14 is formed by the pair of heat seal bars 12 a and the liquid package is filled into the tubular film 15 from the filling nozzle 11. At this time, the pair of diaphragm plates 16a and 16b are in an open position separated from each other. Further, the folded side 6a of the tubular film 15 is in a state where it is started to be pressed by the pressing plates 18a and 18b.
FIG. 4 (b) starts the displacement in the direction in which the pair of diaphragm plates 16a and 16b are close to each other in accordance with instructions from the control means to the diaphragm plates 16a and 16b, and narrows the tubular film 15 from both sides. The state where the fall of the liquid to-be packaged object with the cylindrical film 15 was prevented is shown. During this time, the folded side 6a of the tubular film 15 is in a state in which a part in the longitudinal direction is pressed by the pressing plates 18a and 18b.
FIG. 4 (c) shows that the pair of heat seal bars 12a reach 15 locations of the tubular film where the lowering of the packaged object is blocked in FIG. 14 is formed. In accordance with this timing, the diaphragm plates 16a and 16b start to be displaced in the opening direction in accordance with an instruction from the control means, and the filling of the liquid package into the cylindrical film 15 is resumed.
By repeating the operations shown in FIGS. 4 (a) to 4 (c), the liquid package can be filled and packaged without being bitten by the lateral seal portion 14 even when continuously filled.

Ｒ　フィルムロール　　Ｗ　包装袋
１　フィルム折返し部
２　縦シール部形成部
３　被包装物供給部
４ａ　第１の横シール部形成部
４ｂ　第２の横シール部形成部
５　切断部
６　包装用フィルム
６ａ　折返し辺
７　ガイドロッド
８　縦シールロール
８ａ　環状フランジ
９　モータ
１０　エアシリンダ
１１　充填ノズル
１２　横シールロール
１２ａ　ヒートシールバー
１３　縦シール部
１４　横シール部
１５　筒状フィルム
１６　絞り手段
１６ａ、１６ｂ　絞り板
１７　押え手段
１８ａ、１８ｂ　押え板
１９ａ、１９ｂ　押えバー R Film roll W Packaging bag 1 Film folding part 2 Vertical seal part forming part 3 Package supply part 4a First horizontal seal part forming part 4b Second horizontal seal part forming part 5 Cutting part 6 Packaging film 6a Folding side 7 Guide rod 8 Vertical seal roll 8a Annular flange 9 Motor 10 Air cylinder 11 Filling nozzle 12 Horizontal seal roll 12a Heat seal bar 13 Vertical seal part 14 Horizontal seal part 15 Cylindrical film 16 Diaphragm means 16a, 16b Diaphragm plate 17 Presser means 18a , 18b Presser plates 19a, 19b Presser bar

Claims (16)

　長手方向に繰り出し走行される包装用フィルムを、接着層もしくはシーラント層が対向するように中央部で折り返し、その側縁部分に、包装用フィルムの長手方向に縦シール部を形成して筒状とし、該筒状の包装用フィルム内に液状の被包装物を充填し、一対の横シールロールによって包装用フィルムの長手方向に直交する方向に挟み込み、包装用フィルムの全幅にわたって延在する横シール部を形成することにより液状被包装物を包装用フィルム内に充填包装する方法であって、
　前記筒状の包装用フィルムの少なくとも折返し辺部を、前記横シールロールの周方向に等間隔に位置する複数本のヒートシールバーの、各ヒートシールバー間に設けた押え手段によって押え込み、該押え込み位置に、前記一対の横シールロールによって横シール部を形成することを特徴とする液状被包装物の充填包装方法。 The packaging film fed out in the longitudinal direction is folded at the center so that the adhesive layer or sealant layer faces, and a longitudinal seal portion is formed in the longitudinal direction of the packaging film at the side edge portion to form a cylinder. The horizontal sealing portion that fills the cylindrical packaging film with a liquid object and is sandwiched in a direction perpendicular to the longitudinal direction of the packaging film by a pair of lateral seal rolls and extends across the entire width of the packaging film A method for filling and packaging a liquid package in a packaging film by forming
At least the folded side of the cylindrical packaging film is pressed by a pressing means provided between the heat seal bars of a plurality of heat seal bars positioned at equal intervals in the circumferential direction of the horizontal seal roll, and the press A method for filling and packaging a liquid article, wherein a horizontal seal portion is formed at a position by the pair of horizontal seal rolls. 　長手方向に繰り出し走行される包装用フィルムを、接着層もしくはシーラント層が対向するように中央部で折り返し、その側縁部分に、包装用フィルムの長手方向に縦シール部を形成して筒状とし、該筒状の包装用フィルム内に液状の被包装物を充填し、一対の横シールロールによって包装用フィルムの長手方向に直交する方向に挟み込み、包装用フィルムの全幅にわたって延在する横シール部を形成することにより液状被包装物を包装用フィルム内に充填包装する方法であって、
　前記筒状の包装用フィルムの少なくとも折返し辺部を、前記横シールロールの周方向に等間隔に位置する複数本のヒートシールバーの、各ヒートシールバー間に設けた押え手段によって押え込むと共に、
　前記包装用フィルムの走行方向で、前記横シールロールの手前の位置において、前記筒状の包装用フィルムの両側面を、絞り手段によって挟み込んで液状被包装物を間欠的に絞り出し、該包装用フィルムの、前記押え手段および絞り手段による作用位置に、前記一対の横シールロールによって横シール部を形成することを特徴とする液状被包装物の充填包装方法。 The packaging film fed out in the longitudinal direction is folded at the center so that the adhesive layer or sealant layer faces, and a longitudinal seal portion is formed in the longitudinal direction of the packaging film at the side edge portion to form a cylinder. The horizontal sealing portion that fills the cylindrical packaging film with a liquid object and is sandwiched in a direction perpendicular to the longitudinal direction of the packaging film by a pair of lateral seal rolls and extends across the entire width of the packaging film A method for filling and packaging a liquid package in a packaging film by forming
While pressing at least the folded side of the cylindrical packaging film by a pressing means provided between the heat seal bars of a plurality of heat seal bars positioned at equal intervals in the circumferential direction of the horizontal seal roll,
The packaging material is intermittently squeezed by sandwiching both side surfaces of the cylindrical packaging film by a squeezing means at a position in front of the horizontal seal roll in the running direction of the packaging film. A method for filling and packaging a liquid article to be packaged, characterized in that a lateral seal portion is formed by the pair of lateral seal rolls at an operating position of the pressing means and the squeezing means. 　前記押え手段は、前記筒状の包装用フィルムを全幅にわたって押さえる押えバーからなることを特徴とする請求項１または２に記載の液状被包装物の充填包装方法。 The method for filling and packaging a liquid package according to claim 1 or 2, wherein the presser means comprises a presser bar for pressing the cylindrical packaging film over the entire width. 　前記押え手段は、前記筒状の包装用フィルムの折返し辺部分をその全長にわたって押さえる押え板からなることを特徴とする請求項１または２に記載の液状被包装物の充填包装方法。 The method for filling and packaging a liquid package according to claim 1 or 2, wherein the holding means comprises a holding plate that holds the folded side portion of the tubular packaging film over its entire length. 　前記絞り手段は、一対の絞り板からなることを特徴とする請求項２～４のいずれか１項に記載の液状被包装物の充填包装方法。 The method for filling and packaging a liquid package according to any one of claims 2 to 4, wherein the squeezing means comprises a pair of squeezing plates. 　前記一対の絞り板は、前記包装用フィルムの品種および充填条件に基づいて、相互に近接または離間する位置に変位することを特徴とする請求項５に記載の液状被包装物の充填包装方法。 6. The method of filling and packaging a liquid package according to claim 5, wherein the pair of diaphragms are displaced to positions close to or away from each other based on the type and filling condition of the packaging film. 　前記一対の絞り板の少なくとも一方は、先端部にガス吹き出し口を有し、該ガス吹き出し口から吹き出されたガスの圧力によって、前記筒状の包装用フィルム内に介在する液状被包装物をしごき出すことを特徴とする請求項５または６に記載の液状被包装物の充填包装方法。 At least one of the pair of squeezing plates has a gas blowout port at the tip, and the liquid packaged material interposed in the cylindrical packaging film is squeezed by the pressure of the gas blown out from the gas blowout port. The method for filling and packaging a liquid package according to claim 5 or 6, wherein: 　長手方向に繰り出し走行される包装用フィルムを、接着層もしくはシーラント層が対向するように中央部で折り返し、その側縁部分に、包装用フィルムの長手方向に縦シール部を形成して筒状とする縦シール手段と、
　該筒状の包装用フィルム内に液状の被包装物を充填しながら、包装用フィルムの長手方向に直交する方向に、包装用フィルムの全幅にわたって延在し、包装用フィルムの長手方向に間隔をおいて横シールを施して包装体を形成する一対の横シールロールからなる横シール手段と、
を備える充填包装機において、
　前記横シールロールの周方向に等間隔に位置する複数本のヒートシールバーの、各ヒートシールバー間の、少なくとも前記包装用フィルムの折返し辺に相当する部分を押さえ込む押え手段を有することを特徴とする充填包装機。 The packaging film fed out in the longitudinal direction is folded back at the center so that the adhesive layer or the sealant layer faces, and a longitudinal seal portion is formed in the longitudinal direction of the packaging film at the side edge portion to form a cylindrical shape. Vertical sealing means to perform,
While filling the cylindrical packaging film with a liquid package, it extends over the entire width of the packaging film in a direction perpendicular to the longitudinal direction of the packaging film, and is spaced in the longitudinal direction of the packaging film. A horizontal sealing means comprising a pair of horizontal seal rolls that form a package by applying a horizontal seal;
In a filling and packaging machine comprising:
A plurality of heat seal bars positioned at equal intervals in the circumferential direction of the horizontal seal roll, and having presser means for pressing at least a portion corresponding to the folded side of the packaging film between the heat seal bars. Filling and packing machine. 　長手方向に繰り出し走行される包装用フィルムを、接着層もしくはシーラント層が対向するように中央部で折り返し、その側縁部分に、包装用フィルムの長手方向に縦シール部を形成して筒状とする縦シール手段と、
　該筒状の包装用フィルム内に液状の被包装物を充填しながら、包装用フィルムの長手方向に直交する方向に、包装用フィルムの全幅にわたって延在し、包装用フィルムの長手方向に間隔をおいて横シールを施して包装体を形成する一対の横シールロールからなる横シール手段と、
を備える充填包装機において、
　前記包装用フィルムの走行方向で、前記横シールロールの手前の位置に、前記筒状の包装用フィルムの両側面を挟むように位置し、相互に近接および離間する方向に変位可能な絞り手段を有すると共に、
　前記横シールロールの周方向に等間隔に位置する複数本のヒートシールバーの、各ヒートシールバー間の、少なくとも前記包装用フィルムの折返し辺に相当する部分を押さえ込む押え手段を有することを特徴とする充填包装機。 The packaging film fed out in the longitudinal direction is folded back at the center so that the adhesive layer or the sealant layer faces, and a longitudinal seal portion is formed in the longitudinal direction of the packaging film at the side edge portion to form a cylindrical shape. Vertical sealing means to perform,
While filling the cylindrical packaging film with a liquid package, it extends over the entire width of the packaging film in a direction perpendicular to the longitudinal direction of the packaging film, and is spaced in the longitudinal direction of the packaging film. A horizontal sealing means comprising a pair of horizontal seal rolls that form a package by applying a horizontal seal;
In a filling and packaging machine comprising:
A squeezing means that is positioned so as to sandwich both side surfaces of the cylindrical packaging film at a position in front of the lateral seal roll in the running direction of the packaging film and that can be displaced in the direction of approaching and separating from each other. And having
A plurality of heat seal bars positioned at equal intervals in the circumferential direction of the horizontal seal roll, and having presser means for pressing at least a portion corresponding to the folded side of the packaging film between the heat seal bars. Filling and packing machine. 　前記押え手段は、前記筒状の包装用フィルムを全幅にわたって押さえる押えバーからなることを特徴とする請求項８または９に記載の充填包装機。 10. The filling and packaging machine according to claim 8 or 9, wherein the presser means comprises a presser bar that presses the tubular packaging film over its entire width. 　前記押え手段は、前記筒状の包装用フィルムの折返し辺部分をその全長にわたって押さえる押え板からなることを特徴とする請求項８または９に記載の充填包装機。 10. The filling and packaging machine according to claim 8 or 9, wherein the holding means comprises a holding plate that holds the folded side portion of the cylindrical packaging film over its entire length. 　前記絞り手段は、一対の絞り板からなることを特徴とする請求項９～１１のいずれか１項に記載の充填包装機。 The filling and packaging machine according to any one of claims 9 to 11, wherein the squeezing means comprises a pair of squeezing plates. 　前記一対の絞り板の少なくとも一方は、先端部にガス吹き出し口を有することを特徴とする請求項１２に記載の充填包装機。 13. The filling and packaging machine according to claim 12, wherein at least one of the pair of diaphragm plates has a gas outlet at a tip portion. 　前記押え板は、前記筒状の包装用フィルムのフィルム幅によって位置調整可能に構成されていることを特徴とする請求項１１～１３のいずれか１項に記載の充填包装機。 The filling and packaging machine according to any one of claims 11 to 13, wherein the pressing plate is configured to be position-adjustable according to a film width of the cylindrical packaging film. 　前記押え板による横シールロールの軸線方向の押さえ幅は、前記筒状の包装用フィルムのフィルム幅の１～５０％であることを特徴とする請求項１１～１４のいずれか１項に記載の充填包装機。 15. The pressing width in the axial direction of the horizontal sealing roll by the pressing plate is 1 to 50% of the film width of the cylindrical packaging film, according to any one of claims 11 to 14. Filling packaging machine. 　前記押えバーは、前記横シールロールの各ヒートシールバーの回転方向手前側に、該ヒートシールバーに隣接して設けることを特徴とする請求項１０に記載の充填包装機。 The filling and packaging machine according to claim 10, wherein the presser bar is provided adjacent to the heat seal bar on the front side in the rotation direction of each heat seal bar of the horizontal seal roll.
PCT/JP2015/074772 2014-09-03 2015-08-31 Fill packaging method and fill packaging machine for liquid object to be packaged Ceased WO2016035773A1 (en)

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