WO2008056408A1 - Vertical filling/packing machine - Google Patents

Vertical filling/packing machine Download PDF

Info

Publication number
WO2008056408A1
WO2008056408A1 PCT/JP2006/322173 JP2006322173W WO2008056408A1 WO 2008056408 A1 WO2008056408 A1 WO 2008056408A1 JP 2006322173 W JP2006322173 W JP 2006322173W WO 2008056408 A1 WO2008056408 A1 WO 2008056408A1
Authority
WO
WIPO (PCT)
Prior art keywords
folding
pair
tubular film
film
arm
Prior art date
Application number
PCT/JP2006/322173
Other languages
French (fr)
Japanese (ja)
Inventor
Orihiro Tsuruta
Akira Yamaguchi
Original Assignee
Orihiro 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 Orihiro Co., Ltd. filed Critical Orihiro Co., Ltd.
Priority to JP2008542964A priority Critical patent/JP4955695B2/en
Priority to CA2668401A priority patent/CA2668401C/en
Priority to US12/447,879 priority patent/US20100037567A1/en
Priority to PCT/JP2006/322173 priority patent/WO2008056408A1/en
Priority to CN2006800563062A priority patent/CN101557985B/en
Priority to KR1020097011675A priority patent/KR20090089864A/en
Publication of WO2008056408A1 publication Critical patent/WO2008056408A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/213—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles the web having intermittent motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • 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
    • B29C66/03—After-treatments in the joint area
    • B29C66/034—Thermal after-treatments
    • B29C66/0342—Cooling, e.g. transporting through welding and cooling zone
    • 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
    • B29C66/306—Applying a mark during joining
    • B29C66/3062—Applying a mark during joining in the form of letters or numbers
    • B29C66/30621—Applying a mark during joining in the form of letters or numbers in the form of letters
    • 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
    • B29C66/80—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
    • B29C66/8141—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 surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—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 surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • 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
    • B29C66/8141—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 surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—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 surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • B29C66/81435—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 surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned comprising several parallel ridges, e.g. for crimping
    • 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
    • B29C66/818—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8181—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8221—Scissor or lever mechanisms, i.e. involving a pivot point
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8226—Cam mechanisms; Wedges; Eccentric mechanisms
    • B29C66/82265—Eccentric mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—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
    • B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
    • 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
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • B65B51/303—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes reciprocating along only one axis
    • 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
    • B65B51/32—Cooling, or cooling and pressing, package closures after heat-sealing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
    • B65B61/06—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/2014—Tube advancing means
    • B65B9/2028—Rollers or belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/2042—Means for altering the cross-section of the tube filling opening prior to transversal sealing, e.g. tube spreading 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
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/2049—Package shaping devices acting on filled tubes prior to sealing the filling opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8225—Crank mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7128—Bags, sacks, sachets

Definitions

  • the present invention relates to a vertical filling and packaging machine for manufacturing a packaging bag by charging liquid or paste-like filling into a cylindrical film and heat-sealing the film containing filling.
  • a vertical filling and packaging machine for manufacturing a packaging bag by charging a liquid or paste-like filling into a cylindrical film and heat-sealing the film containing the filling is known.
  • the This type of filling and packaging machine is suitable for filling and packaging foods because it can produce sealed products with a sealed inside, and the strength is not only solid filling but also liquid or pasty filling It is also widely used for packaging goods.
  • Such a gusset bag can be manufactured by providing the above-described vertical filling and packaging machine with a folding guide device that folds both sides of the packaging bag inward.
  • FIG. 1 is a perspective view showing a conventional folding guide device provided in a vertical filling and packaging machine.
  • the conventional folding guide device is composed of four guide arms 103 provided near the lower end portion of an input pipe 102 for charging a filler into a cylindrical film 101, and two folding plates. 104.
  • Two guide arms 103 are arranged on each side of the input pipe 102, and thereby the cylindrical film 101 is stretched from the inside so that the cross section of the cylindrical film 101 is substantially rectangular.
  • Folding plates 104 are arranged on the outer side of the tubular film 101 and between two guide arms 103 arranged on both sides of the input pipe 102, respectively.
  • Each folding plate 104 has an inclined portion 104a that approaches the conveyance center line of the tubular film 101 as the feeding direction of the tubular film 101, that is, from the upper side to the lower side of the vertical filling and packaging machine. Have.
  • the tubular film 101 sent upward is stretched and stretched by the guide arm 103 so that the cross-section becomes substantially rectangular.
  • the tubular film 101 has a partial force passing between the two guide arms 103 disposed on both sides of the input pipe 102. It is folded in a V shape inward along the slope 104a of the folding plate 104 disposed therebetween.
  • the force which shows the cut surface of the cylindrical film 101 so that the cross-sectional shape of the cylindrical film 101 folded in this way can be understood.
  • the cylindrical film 101 is It is not cut as shown.
  • the filling material charged into the cylindrical film 101 from the charging pipe 102 adheres to the guide arm 103 with the force.
  • the filler is liquid or pasty
  • the fluidity of the filler in the cylindrical film 101 deteriorates, and the filler is cylindrical. It may occur that film 101 does not fill well.
  • the guide arm 103 needs to be periodically cleaned in order to maintain the hygiene of the filling material, the maintenance of the filling and packaging machine becomes complicated.
  • an object of the present invention is to provide a vertical filling and packaging machine for producing a gusset packaging bag, which can satisfactorily fill a cylindrical film with a filling material and can easily perform maintenance.
  • the vertical filling and packaging machine includes a conveying device that conveys a cylindrical film filled with the contents directly below the bell, and the cylindrical shape that is conveyed by the conveying means.
  • a folding device that folds both sides of the film into the inside of the tubular film;
  • a pair of squeeze rollers that form an empty filling portion in the cylindrical film by rotating while sandwiching the cylindrical film that has been thrown and feeding the cylindrical film downward, and the cylindrical film interposed therebetween,
  • a sealing device that sandwiches the tubular film with the seal bar and heat-seals the sealing film, and the folding device includes the tubular film.
  • a gap is formed at portions corresponding to both sides of the folding film, and a pair of folding guides that support the outside of the tubular film and a pair of the folding guides that can advance and retract inside the folding guide through the gaps formed in the folding guide. And a folding plate.
  • the outside of the cylindrical film conveyed vertically downward by the conveying device is supported by the folding guide when passing through the folding device.
  • the tubular film is pressed against the inside of the folding guide by its weight.
  • the cylindrical film passes between the pair of folding plates. Both sides of the tubular film are folded inward.
  • a gusset packaging bag is manufactured by heat-sealing the tubular film folded inward on both sides.
  • the folding device provided in the present invention is configured to include a folding guide that supports the outside of the tubular film, and a pair of folding plates that can be advanced and retracted through a gap between the folding guides. Therefore, unlike the conventional folding guide device provided with a guide arm that supports the cylindrical film on the inner side, the filling material thrown into the cylindrical film does not adhere to the folding guide or the folding plate. Therefore, the fluidity of the filling material in the cylindrical film is not deteriorated by the folding guide or the folding plate, and the filling material is not satisfactorily filled in the cylindrical film. In addition, since it is not necessary to periodically clean the folding guide and folding plate in order to maintain the hygiene of the filling in the cylindrical film, maintenance of the filling and packaging machine is facilitated.
  • the folding guide has two semi-cylindrical guide member forces, and the two guide members may be opposed to each other so as to form a substantially cylindrical shape with the gap between them. Good.
  • Each of the pair of folding plates may have a slope portion that approaches the transport center line of the tubular film as it is directed downward from above in the transport direction of the tubular film.
  • an advancing / retreating drive unit is provided for moving the pair of folding plates to a position where the pair of folding plates approach each other and enter the inside of the folding guide and to a position where the pair of folding plates move away from the folding guide away from each other. It can be used as a configuration.
  • the seal bar includes a horizontal seal portion extending in the horizontal direction of the tubular film, and a pair of oblique seal portions respectively provided on both upper and lower sides of the horizontal seal portion.
  • Yo! / the cylindrical film can be laterally sealed by the lateral seal portion and obliquely sealed by the oblique seal portion above and below. Since the filling does not enter the corner of the gusset bag where the diagonal seal is applied, the filling does not enter the portion and the gusset does not swell. For this reason, since the gusset packaging bag is formed into a rectangular parallelepiped shape, it becomes easy to maintain the shape, so that it is possible to satisfactorily pack the gusset packaging bag during distribution, display on the display shelf, and the like.
  • Each of the pair of squeeze rollers is provided at the other end of a squeeze roller arm, one end of which is rotatably supported.
  • An open / close drive unit that individually rotates about the one end portion between a closed position where the pair of squeeze rollers abut each other and an open position where the pair of squeeze rollers are separated from each other may be provided.
  • the opening / closing drive unit includes a first arm having one end rotatably connected to one of the squeeze roller arms, and one end slewing to the other squeeze roller arm.
  • a second arm that is operatively coupled, a rotation shaft that is rotatably coupled to the other ends of the first and second arms, and a drive unit that rotationally drives the rotation shaft.
  • the other ends of the first and second arms are connected to the rotating shaft in a state of being eccentric from the rotating center of the rotating shaft, respectively, and the rotating shaft is in the first rotating position.
  • the one squeeze roller arm is drawn to a position approaching the rotation axis via the first arm, and the other squeeze roller arm is a position where the rotation axis force moves away via the second arm.
  • first and The second of The squeeze roller arm is disposed at a closed position where the pair of squeeze rollers contact each other, and when the rotation shaft is at the second rotational position, the one squeeze roller arm rotates through the first arm.
  • the other squeeze roller arm is pulled to a position approaching the rotating shaft via the second arm, and the first and second squeeze roller arms are thereby moved to the pair of the pair of squeeze roller arms. It can also be configured to be placed in the open position where the squeak rollers are spaced apart from each other!
  • each of the squeeze roller arms is individually driven to rotate.
  • one squeeze roller arm is pulled to a position approaching the rotation axis via the first arm, and the other squeeze roller arm is pushed to a position where the rotation axis force is pushed away via the second arm.
  • the pair of squeeze rollers abut against each other so as to press each other. Therefore, it is possible to handle the cylindrical film sandwiched between squeeze rollers strongly, so that when the both sides of the cylindrical film are folded or the packing filled in the cylindrical film has a high viscosity. Even in this case, the filler can be well separated in the cylindrical film.
  • the nipping portion by the pair of squeeze rollers is located on the center line of the cylindrical film conveyed vertically downward.
  • the state of being sandwiched between the pair of squeeze rollers on the conveyance center line of the cylindrical film is maintained, so that both surfaces of the cylindrical film flattened by the pair of squeeze rollers are interchanged during handling operation by the squeeze roller.
  • the tubular film is not wrinkled when the tubular film is heat-sealed by the sealing device.
  • FIG. 1 is a perspective view showing a conventional folding guide device provided in a vertical filling and packaging machine.
  • FIG. 2 is a perspective view showing a conventional gusset packaging bag in which gusset portions are formed at both ends.
  • FIG. 3 is a schematic side view of a vertical filling and packaging machine according to an embodiment of the present invention.
  • FIG. 4 is a diagram showing a detailed configuration of a film feed roller, a folding guide, a folding plate, and a squeeze roller in the vertical filling and packaging machine shown in FIG. 3.
  • FIG. 5 is a view showing a squeeze roller opening / closing mechanism for opening and closing the squeeze roller.
  • FIG. 6 is a diagram showing a configuration of a K seal bar in the sealing device.
  • FIG. 7 is a diagram showing a filling and packaging operation by the vertical filling and packaging machine shown in FIG. 3.
  • FIG. 8 is a diagram showing a filling and packaging operation by the vertical filling and packaging machine shown in FIG. 3.
  • FIG. 9 is a timing chart of the filling and packaging operation by the vertical filling and packaging machine shown in FIG. 3.
  • FIG. 10 is a perspective view showing a gusset packaging bag manufactured by the vertical filling and packaging machine shown in FIG. 3.
  • FIG. 11 is a diagram showing a state in which a gusset packaging bag is put into a mold and molded into a rectangular parallelepiped shape.
  • FIG. 12 is a view showing another configuration of the K seal bar.
  • FIG. 13 is a perspective view showing a gusset packaging bag manufactured using the heel seal bar shown in FIG. 12.
  • FIG. 3 shows a schematic side view of a vertical filling and packaging machine according to an embodiment of the present invention.
  • the vertical filling and packaging machine of the present embodiment is for bagging the filling cake introduced from the input pipe 1.
  • Filler A is made of solid, liquid or paste.
  • a bag making guide 3 for forming a sheet-like film 20a into a cylindrical shape is attached to the outer periphery of the input pipe 1.
  • the cylindrical film 20 formed into a cylindrical shape by the bag making guide 3 is heat sealed at its mating surface by the vertical seal portion 4 provided below the bag making guide 3.
  • a transport device that sandwiches and transports the tubular film 20, and a pair of film feed rollers 6 each having two disk-shaped rollers are provided.
  • a folding device including a folding guide 2 and a folding plate 5 for folding both sides of the tubular film 20 inward is provided below each film feed roller 6.
  • the folding guide 2 is composed of two semi-cylindrical guide members 2a, and these two guide members 2a are opposed to each other so as to form a substantially cylindrical shape with a gap between them (see FIG. 4 (c)).
  • the tubular film 20 is sent downward through the space between the two guide members 2a. At this time, the outer periphery of the tubular film 20 is supported by the two guide members 2a.
  • Two folding plates 5 are provided, each of which can advance and retreat with respect to the inside of the two guide members 2a through a gap between the two guide members 2a.
  • V-shaped folding is formed on both sides of the tubular film 20.
  • each squeeze roller 7 divides the filling material A in the tubular film 20 by sandwiching the tubular film 20 to form an empty filling portion 20b in the tubular film 20.
  • the respective shigola rollers 7 are provided so as to be movable relative to each other in a direction substantially perpendicular to the feeding direction of the tubular film 20.
  • each squeeze roller 7 a sealing device 8 for heat-sealing the empty filling portion 20b of the tubular film 20 is disposed below each squeeze roller 7, a sealing device 8 for heat-sealing the empty filling portion 20b of the tubular film 20 is disposed.
  • Each of the sealing devices 8 has a built-in heater (not shown), and has K seal bars 80 that can move in directions perpendicular to the moving direction of the tubular film 20.
  • the sealing device 8 is configured such that the empty filling portion 20b of the tubular film 20 is sandwiched between these K seal bars 80, and the empty filling portion 20b is heat-sealed by heating and pressurizing.
  • a cooling and cutting device 9 for cooling and cutting the portion heat-sealed by the sealing device 8 is provided.
  • the cooling and cutting device 9 has a cooling bar 90 and a cooling bar receiver 91, and cools the heat seal portion by sandwiching the heat seal portion formed on the tubular film 20 with these.
  • the cooling bar 90 has a built-in cutting blade 90 a for cutting the heat seal portion of the tubular film 20.
  • the cooling bar receiver 91 is formed with a recess for receiving the cutting blade 90a when the cutting blade 90a protrudes from the cooling bar 90.
  • Fig. 4 (a) is a front view of these configurations
  • Fig. 4 (b) is a left side view of the configuration shown in Fig. 4 (a)
  • Fig. 4 (c) is one of the configurations shown in Fig. 4 (a). It is a top view which mainly shows a folding guide.
  • a pair of film feed rollers 6 is fixed to each of the shafts 61.
  • the shaft 61 is rotatably supported by a support portion 62.
  • One end of the first squeeze roller arm 71a is rotatably connected to both ends of one shaft 61, and one end of the second squeeze roller arm 71b is connected to both ends of the other shaft 61.
  • the ends are connected so as to rotate freely.
  • a squeal roller 7 is rotatably provided at the other end of each squeeze roller arm 71a, 71b. With this configuration, the squeeze rollers 7 open and close each other by moving around the respective shafts 61 connected via the squeal roller arms 71a and 71b. A mechanism for opening and closing the shigoki roller 7 in this way will be described later.
  • Each guide member 2a of the folding guide 2 is provided with an arm portion 2b, and these arm portions 2a are fixed to support portions 62 that support the respective shafts 61, respectively.
  • the folding guide 2 is arranged between the film feed roller 6 and the squeeze roller 7 with such a configuration.
  • each folding plate 5 is connected to an air cylinder 51 which is an advancing / retreating drive unit.
  • the folding plates 5 are moved in synchronism with each other by the air cylinder 51 between a position where the folding guide 2 enters the folding guide 2 and approaches each other, and a position where the inner force of the folding guide 2 exits and is separated from each other. Be made.
  • Each folding plate 5 has a slope portion 5a that approaches the conveyance center line of the tubular film 20 as it goes in the feeding direction of the tubular film 20, that is, upward force of the vertical filling and packaging machine.
  • FIG. 5 is a view showing a squeeze roller opening / closing mechanism that opens and closes the squeeze roller.
  • Fig. 5 (a) shows the state where the squeal roller is open
  • Fig. 5 (b) shows the state where the squeeze roller is closed.
  • FIG. 5 (c) is a right side view of the squeeze roller opening / closing mechanism shown in FIG. 5 (b).
  • FIG. 5 (d) is a top view of the squeeze roller opening / closing mechanism shown in FIG. 5 (b).
  • the squeeze roller opening / closing mechanism includes a first arm 30 having one end rotatably connected to each of the two first squeeze roller arms 71a on both sides of the fold guide 2, and a fold A second arm 31 having one end rotatably connected to a connecting member 32 that connects two second squeeze roller arms 71b on both sides of the guide 2.
  • each first arm 30 is rotatably connected to the vicinity of the end of a crank 38 provided at both ends of the rotating shaft 33.
  • the end of the crank 38 is eccentric to the central force of the rotating shaft 33.
  • An eccentric member 31 a that has a circular outer peripheral surface and is fixed to the rotating shaft 33 in a state of being eccentric from the center of the rotating shaft 33 is provided at the substantially central portion of the rotating shaft 33.
  • a circular inner peripheral surface having substantially the same diameter as the outer peripheral surface of the eccentric member 3 la is formed at the other end of the second arm 31. The circular inner peripheral surface rotates to the outer peripheral surface of the eccentric member 31a. It is supported freely.
  • a pulley 34 fixed to the rotating shaft 33 coaxially with the rotating shaft 33 is provided.
  • a pulley 35 that is driven to rotate by a motor 37 is disposed above the pulley 34.
  • a belt 36 is wound around the pulley 34 and the pulley 35.
  • the pulleys 34 and 35, the belt 36, and the motor 37 constitute a drive unit that rotationally drives the rotary shaft 33.
  • the squeeze roller opening / closing mechanism in the present embodiment when the squeeze roller opening / closing mechanism is closed, the squeeze rollers 7 abut on each other on the conveyance center line C of the tubular film 20 in a pressed state. Therefore, the cylindrical film 20 sandwiched between the squeeze rollers 7 can be handled strongly, so that both sides of the cylindrical film 20 are folded inward, and further, the filling filled in the cylindrical film 20 is possible. Even when the product has a high viscosity, the packing can be satisfactorily separated in the tubular film 20.
  • the squeeze roller 7 When both surfaces of the flattened tubular film 20 are displaced from each other and the tubular film 20 is heat-sealed by the sealing device 8 after that, the tubular film 20 may be wrinkled.
  • the cylindrical film 20 since the cylindrical film 20 is held between the two squeeze rollers 7 on the center line C of the conveyance path, the cylindrical film 20 is flattened by the squeal roller 7. The both sides of the tubular film 20 are not shifted mutually during handling operation by the squeeze roller 7, and the tubular film 20 is not wrinkled when the tubular film 20 is heat-sealed by the sealing device 8 after that. .
  • FIG. Fig. 6 (a) is a front view of the K seal bar
  • Fig. 6 (b) is a right side view thereof.
  • FIG. 7 and FIG. 8 are diagrams showing the filling and packaging operation by the vertical filling and packaging machine of the present embodiment.
  • FIG. 9 is a timing chart of the filling and packaging operation by the vertical filling and packaging machine of this embodiment.
  • the folding plate 5, the squeeze roller 7 and the K seal bar 80 of the seal device 8 are left open.
  • the seal portion which is the portion where the cylindrical film 20 is heat-sealed by the sealing device 8 in the previous operation, is located between the K seal bars 80.
  • the cylindrical film 20 contains a part of the filler charged from the charging pipe 1 in the previous operation.
  • FIG. 7A shows a state in which the folding plate 5 is completely retracted to the outside of the folding guide 2 as the folding plate 5 is opened. However, a part of the folding plate 5 may enter the folding guide 2 when the folding plate 5 is open.
  • the film feeding roller 6 is rotated to start a feeding operation downward of the cylindrical film 20. Further, the air cylinder 51 (see FIG. 4) and the motor 37 (see FIG. 5) are driven to close the folding plate 5 and the squeeze roller 7 as shown in FIG. 7 (b).
  • the tubular film 20 is sent to the lower side of the folded-up plate 5 by feeding the folded-down plate 5 in a state where the folding plate 5 is pushed into the tubular film 20 thus stretched.
  • 20 has V-shaped folds on both sides.
  • the folding plate 5 has a slope portion 5a that approaches the folding guide 2 side in the feeding direction of the cylindrical film 20, that is, from the upper side to the lower side of the vertical filling and packaging machine. It is gradually and gradually folded into a V-shape along the slope 5a.
  • the squeeze roller 7 handles the V-shaped folded portion of the cylindrical film 20 formed in this way to divide the filling inside the cylindrical film 20, and as shown in FIG. A hollow filling portion 20b in which no filler is present is formed on the film-like film 20.
  • the K seal bar 80 of the seal device 8 is closed, and the empty filling portion 20b is heated and pressurized by the lateral seal portion 81 and the oblique seal portion 82 of each K seal bar 80.
  • the heat-treated area of the empty filling portion 20b is heat-sealed.
  • At least one of the K seal bars 80 has a built-in heater (not shown), and the empty filling portion 20b is heated by heat generated by the heater.
  • the K seal bar 80 is opened as shown in FIG. 8 (e).
  • the empty filling portion 20b is laterally sealed by the lateral seal portion 81, and obliquely sealed by the oblique seal portion 82 above and below it.
  • the film feed roller 6 is rotated so that the horizontal seal formed in the empty filling portion 20b is cylindrical until it is disposed at the height of the cooling and cutting device 9. Send film 20 downward.
  • the cooling bar 90 and the cooling bar receiver 91 of the cooling cutting device 9 are closed and the empty filling portion 20b is sandwiched between them, and the horizontal seal portion of the empty filling portion 20b is removed. Cooling. Thereafter, the cutting blade 90a accommodated in the cooling bar 90 is protruded toward the cooling bar receiver 91, and the horizontal seal portion of the empty filling portion 20b is cut in the horizontal direction. Then, the gusset packaging bag G containing the filling material falls below the cooling cutting device 9. Thereafter, the gusset packaging bag G is continuously manufactured by repeating the above process.
  • the folding guide 2 and the folding plate 5 are arranged outside the cylindrical film 20. Therefore, unlike the configuration in which the guide arm is installed in the cylindrical film 20 as in the prior art, the filler charged into the cylindrical film 20 from the charging pipe 1 adheres to the folding guide 2 and the folding plate 5. There is nothing. Therefore, the fluidity of the filler in the tubular film 20 due to the filler adhering to the folding guide 2 and the folding plate 5 does not occur. In addition, since it is not necessary to clean the folding guide 2 and the folding plate 5, the maintenance of the filling and packaging machine is easy.
  • FIG. 10 shows a gusset packaging bag manufactured by the vertical filling and packaging machine of the present embodiment. It is a perspective view.
  • the gusset packaging bag G manufactured by the vertical filling and packaging machine of the present embodiment is configured so that the filling does not enter the corners by the oblique seal G1 formed in the gusset portion. Therefore, the filling does not enter the gusset portion and the gusset portion does not swell. Therefore, for example, as shown in Fig. 11, it is easy to keep the shape after putting the gusset packaging bag G into the form F and forming it into a rectangular parallelepiped shape, so that the packaging of the gusset packaging bag G during distribution, display on the display shelf, etc. Can be performed satisfactorily.
  • the sealing device 8 performs only heat sealing of the tubular film 20, and the cut of the portion heat-sealed by the sealing device 8 is disposed below the sealing device 8.
  • An example is shown in which the cooling and cutting device 9 is used.
  • the configuration of the sealing device 8 that can be applied to the vertical filling and packaging machine of this embodiment is not limited thereto, and the configuration in which the function of the cutting device 9 that cuts the heat-sealed portion of the sealing device 8 is added.
  • a cutting blade is provided in one of the two K seal bars 80 so that the cutting blade can be advanced and retracted, and the other horizontal sealing portion 81 is provided with the cutter when the cutting blade is projected. After the heat seal is completed, the tubular film 20 is cut by projecting the cutting blade while pressing the film with the two K seal bars 80.
  • FIG. 12 is a view showing another configuration of the K seal bar.
  • a press surface of the K seal bar 80 shown in FIG. 12 is provided with a horizontal seal portion 81 extending in the horizontal direction of the tubular film 20 and thermally sealing the empty filling portion 20b in the horizontal direction.
  • a pair of oblique seal portions 82 extending at an angle of about 45 degrees with respect to the horizontal seal portion 81 are provided on both upper and lower sides of the horizontal seal portion 81.
  • the oblique seal portions 82 provided on each side of the horizontal seal portion 81 are separated from each other.
  • the horizontal seal portion 81 and the oblique seal portion 82 constitute a substantially K-shaped heat seal portion.
  • FIG. 13 is a perspective view showing a gusset packaging bag manufactured using the K seal bar shown in FIG.
  • the gusset packaging bag shown in FIG. 13 is wider than the gusset packaging bag shown in FIG.
  • the gusset packaging bag G shown in Fig. 13 is also an oblique sheet formed on the gusset portion. Gl prevents the filling from entering the corners. Therefore, it is not possible for the filling to enter the gusset part and the gusset part to expand! /.

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  • Physics & Mathematics (AREA)
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  • Containers And Plastic Fillers For Packaging (AREA)

Abstract

A vertical filling/packing machine comprises a film feed roller (6) for feeding a tubular film (20) vertically downward, a folding device for folding the opposite sides of the tubular film (20) fed by the film feed roller (6) inwardly of the tubular film (20), a pair of squeeze rollers (7) for forming an empty filling portion (20b) in the tubular film (20) by rotating while sandwiching the tubular film (20) filled with contents to feed the tubular film (20) downward, and a unit (8) for heat sealing the tubular film (20). The folding device has a folding guide (2) provided with clearances formed at portions corresponding to the opposite sides of the tubular film (20) and supporting the outside of the tubular film (20), and a pair of folding plates (5) which can advance/retract into/from the folding guide (2) through the clearances formed in the folding guide (2).

Description

明 細 書  Specification
縦型充填包装機  Vertical filling and packaging machine
技術分野  Technical field
[0001] 本発明は、液状やペースト状の充填物を筒状のフィルムに投入し、充填物が投入さ れたフィルムを熱シールすることで包装袋を製造する縦型充填包装機に関する。 背景技術  TECHNICAL FIELD [0001] The present invention relates to a vertical filling and packaging machine for manufacturing a packaging bag by charging liquid or paste-like filling into a cylindrical film and heat-sealing the film containing filling. Background art
[0002] 従来から、液状やペースト状の充填物を筒状のフィルムに投入し、充填物が投入さ れたフィルムを熱シールすることで包装袋を製造する縦型充填包装機が知られてい る。この種の充填包装機は、内部が密封された袋詰製品を製造することができるので 、食品の充填包装に適しており、し力も、固形の充填物だけでなく液状もしくはペース ト状の充填物の包装にも広く用いられて 、る。  Conventionally, a vertical filling and packaging machine for manufacturing a packaging bag by charging a liquid or paste-like filling into a cylindrical film and heat-sealing the film containing the filling is known. The This type of filling and packaging machine is suitable for filling and packaging foods because it can produce sealed products with a sealed inside, and the strength is not only solid filling but also liquid or pasty filling It is also widely used for packaging goods.
[0003] さらに近年では、包装袋の両側を内側に折り込んだガゼット袋が用いられるようにな つてきている。ガゼット袋は、内容物を充填したときに角柱の形態をとることができるの で、隣接して配置されたガゼット袋同士の間に余分なスペースが生じることがない。そ のため、流通時の箱詰めや商品陳列棚での陳列を効率よく行うことができる。  [0003] Further, in recent years, gusset bags in which both sides of a packaging bag are folded inward have been used. Since the gusset bag can take the form of a prism when filled with contents, there is no extra space between adjacent gusset bags. For this reason, it is possible to efficiently pack boxes at the time of distribution and display on merchandise display shelves.
[0004] このようなガゼット袋は、上述した縦型充填包装機に、包装袋の両側を内側に折り 込む折り込みガイド装置を備えることにより製造することができる。  [0004] Such a gusset bag can be manufactured by providing the above-described vertical filling and packaging machine with a folding guide device that folds both sides of the packaging bag inward.
[0005] 図 1は、縦型充填包装機に備えられる従来の折り込みガイド装置を示す斜視図で ある。図 1に示すように、従来の折り込みガイド装置は、筒状のフィルム 101内に充填 物を投入する投入パイプ 102の下端部付近に設けられた 4本のガイドアーム 103と、 2枚の折り込み板 104とを有している。ガイドアーム 103は、投入パイプ 102の両側に それぞれ 2本ずつ配置されており、これにより筒状のフィルム 101の断面が略長方形 になるように筒状のフィルム 101を内側から張り広げている。  FIG. 1 is a perspective view showing a conventional folding guide device provided in a vertical filling and packaging machine. As shown in FIG. 1, the conventional folding guide device is composed of four guide arms 103 provided near the lower end portion of an input pipe 102 for charging a filler into a cylindrical film 101, and two folding plates. 104. Two guide arms 103 are arranged on each side of the input pipe 102, and thereby the cylindrical film 101 is stretched from the inside so that the cross section of the cylindrical film 101 is substantially rectangular.
[0006] また、折り込み板 104は、筒状のフィルム 101の外側に、かつ投入パイプ 102の両 側に配置された 2本のガイドアーム 103の間にそれぞれ配置されている。各々の折り 込み板 104は、筒状のフィルム 101の送り方向、すなわち縦型充填包装機の上方か ら下方に向力 につれて筒状のフィルム 101の搬送中心線に近づく斜面部 104aを 有している。 [0006] Folding plates 104 are arranged on the outer side of the tubular film 101 and between two guide arms 103 arranged on both sides of the input pipe 102, respectively. Each folding plate 104 has an inclined portion 104a that approaches the conveyance center line of the tubular film 101 as the feeding direction of the tubular film 101, that is, from the upper side to the lower side of the vertical filling and packaging machine. Have.
[0007] このように構成された折り込みガイド装置によれば、上方力 送られてきた筒状のフ イルム 101は、ガイドアーム 103によって断面が略長方形になるように張り広げられる 。筒状のフィルム 101がさらに下方に送られると、筒状のフィルム 101は、投入パイプ 102の両側に配置された 2本のガイドアーム 103の間を通過する部分力 その 2本の ガイドアーム 103の間に配置された折り込み板 104の斜面部 104aに沿って内側に V 字型に折り込まれる。なお、図 1では、このように折り込まれた筒状のフィルム 101の 断面形状が理解できるように筒状のフィルム 101の切断面を示している力 実際の包 装工程では筒状のフィルム 101が図示のように切断されることはない。  [0007] According to the folding guide device configured as described above, the tubular film 101 sent upward is stretched and stretched by the guide arm 103 so that the cross-section becomes substantially rectangular. When the tubular film 101 is fed further downward, the tubular film 101 has a partial force passing between the two guide arms 103 disposed on both sides of the input pipe 102. It is folded in a V shape inward along the slope 104a of the folding plate 104 disposed therebetween. In addition, in FIG. 1, the force which shows the cut surface of the cylindrical film 101 so that the cross-sectional shape of the cylindrical film 101 folded in this way can be understood. In the actual packaging process, the cylindrical film 101 is It is not cut as shown.
[0008] このように両側が内側に V字型に折り込まれた筒状のフィルム 101内に充填物の充 填包装を行うと、図 2に示すように両端部にガゼット部 105aが形成されたガゼット包 装袋 105が製造される。  [0008] When filling and packaging the cylindrical film 101 with both sides folded into a V shape in this way, gusset portions 105a were formed at both ends as shown in FIG. A gusset wrapping bag 105 is produced.
[0009] 筒状のフィルムに折り込み部を形成する手段を備えた充填包装機は、特開 2003  [0009] A filling and packaging machine provided with means for forming a folded portion in a tubular film is disclosed in JP 2003
- 118745号公報に開示されて 、る。  -It is disclosed in the publication No. 118745.
発明の開示  Disclosure of the invention
[0010] し力しながら、上述した折り込みガイド装置では、投入パイプ 102から筒状のフィル ム 101内に投入された充填物がガイドアーム 103に付着する。特に充填物が液状も しくはペースト状のものである場合には、ガイドアーム 103に充填物が付着すると筒 状のフィルム 101内での充填物の流動性が悪化し、充填物が筒状のフィルム 101内 に良好に充填されないことが生じうる。また、充填物の衛生を保っためにはガイドア ーム 103を定期的に洗浄する必要があるので、充填包装機のメンテナンスが煩雑に なる。  [0010] In the folding guide device described above, the filling material charged into the cylindrical film 101 from the charging pipe 102 adheres to the guide arm 103 with the force. In particular, when the filler is liquid or pasty, if the filler adheres to the guide arm 103, the fluidity of the filler in the cylindrical film 101 deteriorates, and the filler is cylindrical. It may occur that film 101 does not fill well. In addition, since the guide arm 103 needs to be periodically cleaned in order to maintain the hygiene of the filling material, the maintenance of the filling and packaging machine becomes complicated.
[0011] そこで本発明は、充填物を筒状のフィルム内に良好に充填でき、かつメンテナンス を容易に行うことができる、ガゼット包装袋を製造する縦型充填包装機を提供するこ とを目的とする。  Accordingly, an object of the present invention is to provide a vertical filling and packaging machine for producing a gusset packaging bag, which can satisfactorily fill a cylindrical film with a filling material and can easily perform maintenance. And
[0012] 上記目的を達成するため、本発明の縦型充填包装機は、内容物が充填される筒状 フィルムを鈴直下方に搬送する搬送装置と、該搬送手段によって搬送された前記筒 状フィルムの両側を前記筒状フィルムの内側に折り込む折り込み装置と、内容物が 投入された前記筒状フィルムを挟み込みつつ回転して前記筒状フィルムを下方に送 ることで前記筒状フィルムに空充填部を形成する一対のシゴキローラと、前記筒状フ イルムを間にお 、て対向配置されたシールバーを備え、該シールバーで前記筒状フ イルムを挟み込んで熱シールするシール装置と、を備えた縦型充填包装機であって 、前記折り込み装置は、前記筒状フィルムの前記両側に対応する部分に隙間が形成 されており、前記筒状フィルムの外側を支持する折り込みガイドと、前記折り込みガイ ドに形成された前記隙間を通して前記折り込みガイドの内側に進退可能な一対の折 り込み板と、を有する。 [0012] In order to achieve the above object, the vertical filling and packaging machine according to the present invention includes a conveying device that conveys a cylindrical film filled with the contents directly below the bell, and the cylindrical shape that is conveyed by the conveying means. A folding device that folds both sides of the film into the inside of the tubular film; A pair of squeeze rollers that form an empty filling portion in the cylindrical film by rotating while sandwiching the cylindrical film that has been thrown and feeding the cylindrical film downward, and the cylindrical film interposed therebetween, And a sealing device that sandwiches the tubular film with the seal bar and heat-seals the sealing film, and the folding device includes the tubular film. A gap is formed at portions corresponding to both sides of the folding film, and a pair of folding guides that support the outside of the tubular film and a pair of the folding guides that can advance and retract inside the folding guide through the gaps formed in the folding guide. And a folding plate.
[0013] 上記本発明の縦型充填包装機によれば、搬送装置によって鉛直下方に搬送され る筒状フィルムは、折り込み装置を通過する際に折り込みガイドによって外側が支持 される。このとき筒状フィルム内に内容物が投入されていると、その重みによって筒状 フィルムが折り込みガイドの内側に押しつけられた状態となる。そして、一対の折り込 み板を折り込みガイドに形成された隙間を通して折り込みガイドの内側に進入させた 状態で筒状フィルムを鉛直下方にさらに搬送すると、筒状フィルムが一対の折り込み 板の間を通過する間に筒状フィルムの両側が内側に折り込まれる。このようにして両 側が内側に折り込まれた筒状フィルムを熱シールすることでガゼット包装袋が製造さ れる。  [0013] According to the vertical filling and packaging machine of the present invention, the outside of the cylindrical film conveyed vertically downward by the conveying device is supported by the folding guide when passing through the folding device. At this time, if the contents are put into the tubular film, the tubular film is pressed against the inside of the folding guide by its weight. Then, when the cylindrical film is further conveyed vertically downward with the pair of folding plates entering the inside of the folding guide through the gap formed in the folding guide, the cylindrical film passes between the pair of folding plates. Both sides of the tubular film are folded inward. Thus, a gusset packaging bag is manufactured by heat-sealing the tubular film folded inward on both sides.
[0014] 本発明が備える折り込み装置は、筒状フィルムの外側を支持する折り込みガイドと、 折り込みガイドの隙間を通して進退可能な一対の折り込み板とを有する構成である。 そのため、筒状フィルムを内側力 支持するガイドアームを備えた従来の折り込みガ イド装置のように、筒状フィルム内に投入された充填物が折り込みガイドや折り込み 板に付着することがない。そのため、折り込みガイドや折り込み板によって筒状フィル ム内での充填物の流動性が悪ィ匕し、充填物が筒状フィルム内に良好に充填されない ことが生じることはない。また、筒状フィルム内の充填物の衛生を保っために折り込み ガイドや折り込み板を定期的に洗浄する必要もないので、充填包装機のメンテナンス が容易になる。  [0014] The folding device provided in the present invention is configured to include a folding guide that supports the outside of the tubular film, and a pair of folding plates that can be advanced and retracted through a gap between the folding guides. Therefore, unlike the conventional folding guide device provided with a guide arm that supports the cylindrical film on the inner side, the filling material thrown into the cylindrical film does not adhere to the folding guide or the folding plate. Therefore, the fluidity of the filling material in the cylindrical film is not deteriorated by the folding guide or the folding plate, and the filling material is not satisfactorily filled in the cylindrical film. In addition, since it is not necessary to periodically clean the folding guide and folding plate in order to maintain the hygiene of the filling in the cylindrical film, maintenance of the filling and packaging machine is facilitated.
[0015] 前記折り込みガイドは 2つの半円筒状のガイド部材力 なり、該 2つのガイド部材は 互いの間に前記隙間を空けた状態で略円筒形状を成すように対向配置されていても よい。 [0015] The folding guide has two semi-cylindrical guide member forces, and the two guide members may be opposed to each other so as to form a substantially cylindrical shape with the gap between them. Good.
[0016] 前記一対の折り込み板の各々は、前記筒状フィルムの搬送方向の上方から下方へ 向力うにつれて前記筒状フィルムの搬送中心線に近づく斜面部を有して 、てもよ 、。  [0016] Each of the pair of folding plates may have a slope portion that approaches the transport center line of the tubular film as it is directed downward from above in the transport direction of the tubular film.
[0017] さらに、前記一対の折り込み板を、互いに接近して前記折り込みガイドの内側に進 入した位置と、互いに離れて前記折り込みガイドの外側に退出した位置とに移動させ る進退駆動部を備えて ヽる構成としてもょ ヽ。  [0017] Furthermore, an advancing / retreating drive unit is provided for moving the pair of folding plates to a position where the pair of folding plates approach each other and enter the inside of the folding guide and to a position where the pair of folding plates move away from the folding guide away from each other. It can be used as a configuration.
[0018] 前記シールバーは、前記筒状フィルムの横方向に延びた横シール部と、該横シ一 ル部の上下両側にそれぞれ設けられた一対の斜めシール部とを有して 、てもよ!/、。 これにより、筒状フィルムに、横シール部による横シールを施すとともに、その上下に 斜めシール部による斜めシールを施すことができる。ガゼット袋の斜めシールが施さ れている部分の隅部には充填物が入り込まないので、その部分に充填物が入り込ん でガゼット部が膨らむようなことはない。そのため、ガゼット包装袋を直方体形状に成 型した後にその形状を保ちやすくなるので、ガゼット包装袋の流通時の箱詰めや、陳 列棚での陳列などを良好に行うことが可能となる。  [0018] The seal bar includes a horizontal seal portion extending in the horizontal direction of the tubular film, and a pair of oblique seal portions respectively provided on both upper and lower sides of the horizontal seal portion. Yo! / As a result, the cylindrical film can be laterally sealed by the lateral seal portion and obliquely sealed by the oblique seal portion above and below. Since the filling does not enter the corner of the gusset bag where the diagonal seal is applied, the filling does not enter the portion and the gusset does not swell. For this reason, since the gusset packaging bag is formed into a rectangular parallelepiped shape, it becomes easy to maintain the shape, so that it is possible to satisfactorily pack the gusset packaging bag during distribution, display on the display shelf, and the like.
[0019] また、前記一対のシゴキローラの各々は、一方の端部が回動可能に支持されたシ ゴキローラアームの他方の端部にそれぞれ設けられており、前記シゴキローラアーム の各々を、前記一対のシゴキローラを互いに当接させる閉位置と互いに離間させる 開位置との間で前記一方の端部を中心として個別に回動させる開閉駆動部を備えて 、る構成としてもよ 、。  [0019] Each of the pair of squeeze rollers is provided at the other end of a squeeze roller arm, one end of which is rotatably supported. An open / close drive unit that individually rotates about the one end portion between a closed position where the pair of squeeze rollers abut each other and an open position where the pair of squeeze rollers are separated from each other may be provided.
[0020] さらに、前記開閉駆動部は、一方の前記シゴキローラアームに一方の端部が回動 可能に連結された第 1のアームと、他方の前記シゴキローラアームに一方の端部が 回動可能に連結された第 2のアームと、前記第 1および第 2のアームの他方の端部が それぞれ回転可能に連結された回転軸と、該回転軸を回転駆動する駆動部と、を有 し、前記第 1および第 2のアームの他方の端部は、それぞれ、前記回転軸の回転中 心から偏心した状態で前記回転軸に連結されており、前記回転軸が第 1の回転位置 にあるとき、前記一方のシゴキローラアームは前記第 1のアームを介して前記回転軸 に近づく位置に引き寄せられ、前記他方のシゴキローラアームは前記第 2のアームを 介して前記回転軸力 遠ざ力る位置に押し遣られ、これにより前記第 1および第 2の シゴキローラアームは前記一対のシゴキローラを互いに当接させる閉位置に配置さ れ、前記回転軸が第 2の回転位置にあるとき、前記一方のシゴキローラアームは前記 第 1のアームを介して前記回転軸から遠ざかる位置に押し遣られ、前記他方のシゴキ ローラアームは前記第 2のアームを介して前記回転軸に近づく位置に引き寄せられ、 これにより前記第 1および第 2のシゴキローラアームは前記一対のシゴキローラを互 Vヽに離間させる開位置に配置される構成としてもよ!、。 [0020] Further, the opening / closing drive unit includes a first arm having one end rotatably connected to one of the squeeze roller arms, and one end slewing to the other squeeze roller arm. A second arm that is operatively coupled, a rotation shaft that is rotatably coupled to the other ends of the first and second arms, and a drive unit that rotationally drives the rotation shaft. The other ends of the first and second arms are connected to the rotating shaft in a state of being eccentric from the rotating center of the rotating shaft, respectively, and the rotating shaft is in the first rotating position. The one squeeze roller arm is drawn to a position approaching the rotation axis via the first arm, and the other squeeze roller arm is a position where the rotation axis force moves away via the second arm. So that the first and The second of The squeeze roller arm is disposed at a closed position where the pair of squeeze rollers contact each other, and when the rotation shaft is at the second rotational position, the one squeeze roller arm rotates through the first arm. The other squeeze roller arm is pulled to a position approaching the rotating shaft via the second arm, and the first and second squeeze roller arms are thereby moved to the pair of the pair of squeeze roller arms. It can also be configured to be placed in the open position where the squeak rollers are spaced apart from each other!
[0021] 上記構成によれば、第 1および第 2のシゴキローラアームが一対のシゴキローラを互 いに当接させる閉位置に配置されているとき、シゴキローラアームの各々は個別に回 動駆動され、一方のシゴキローラアームが第 1のアームを介して回転軸に近づく位置 に引き寄せられ、他方のシゴキローラアームが第 2のアームを介して回転軸力 遠ざ 力る位置に押し遣られるようになつている。これにより、一対のシゴキローラは互いに 押し合うように当接し合う。そのため、シゴキローラの間に挟んだ筒状フィルムを強く 扱くことができるので、筒状フィルムの両側が折り込まれている場合や、さらには筒状 フィルム内に充填された充填物が高粘度のものである場合であっても、筒状フィルム 内で充填物を良好に分離することができる。 [0021] According to the above configuration, when the first and second squeeze roller arms are disposed at the closed position where the pair of squeeze rollers contact each other, each of the squeeze roller arms is individually driven to rotate. , So that one squeeze roller arm is pulled to a position approaching the rotation axis via the first arm, and the other squeeze roller arm is pushed to a position where the rotation axis force is pushed away via the second arm. It is summer. As a result, the pair of squeeze rollers abut against each other so as to press each other. Therefore, it is possible to handle the cylindrical film sandwiched between squeeze rollers strongly, so that when the both sides of the cylindrical film are folded or the packing filled in the cylindrical film has a high viscosity. Even in this case, the filler can be well separated in the cylindrical film.
[0022] 前記一対のシゴキローラが前記閉位置にあるとき、前記一対のシゴキローラによる 狭持部は鉛直下方に搬送される前記筒状フィルムの中心線上に位置していることが 好ましい。これにより、筒状フィルムの搬送中心線上で一対のシゴキローラの間に挟 まれた状態が保持されるので、一対のシゴキローラによって扁平にされた筒状フィル ムの両面がシゴキローラによる扱き動作中に互 ヽにずれることはなぐその後にシー ル装置で筒状フィルムが熱シールされる際に筒状フィルムにしわが生じることがない [0022] When the pair of squeeze rollers are in the closed position, it is preferable that the nipping portion by the pair of squeeze rollers is located on the center line of the cylindrical film conveyed vertically downward. As a result, the state of being sandwiched between the pair of squeeze rollers on the conveyance center line of the cylindrical film is maintained, so that both surfaces of the cylindrical film flattened by the pair of squeeze rollers are interchanged during handling operation by the squeeze roller. After that, the tubular film is not wrinkled when the tubular film is heat-sealed by the sealing device.
図面の簡単な説明 Brief Description of Drawings
[0023] [図 1]縦型充填包装機に備えられる従来の折り込みガイド装置を示す斜視図である。  FIG. 1 is a perspective view showing a conventional folding guide device provided in a vertical filling and packaging machine.
[図 2]両端部にガゼット部が形成された従来のガゼット包装袋を示す斜視図である。  FIG. 2 is a perspective view showing a conventional gusset packaging bag in which gusset portions are formed at both ends.
[図 3]本発明の一実施形態に係る縦型充填包装機の概略側面図を示す図である。  FIG. 3 is a schematic side view of a vertical filling and packaging machine according to an embodiment of the present invention.
[図 4]図 3に示した縦型充填包装機におけるフィルム送りローラ、折り込みガイド、折り 込み板、およびシゴキローラの詳細な構成を示す図である。 [図 5]シゴキローラを開閉させるシゴキローラ開閉機構を示す図である。 4 is a diagram showing a detailed configuration of a film feed roller, a folding guide, a folding plate, and a squeeze roller in the vertical filling and packaging machine shown in FIG. 3. FIG. 5 is a view showing a squeeze roller opening / closing mechanism for opening and closing the squeeze roller.
[図 6]シール装置における Kシールバーの構成を示す図である。  FIG. 6 is a diagram showing a configuration of a K seal bar in the sealing device.
[図 7]図 3に示した縦型充填包装機による充填包装動作を示す図である。  FIG. 7 is a diagram showing a filling and packaging operation by the vertical filling and packaging machine shown in FIG. 3.
[図 8]図 3に示した縦型充填包装機による充填包装動作を示す図である。  FIG. 8 is a diagram showing a filling and packaging operation by the vertical filling and packaging machine shown in FIG. 3.
[図 9]図 3に示した縦型充填包装機による充填包装動作のタイミングチャートである。  FIG. 9 is a timing chart of the filling and packaging operation by the vertical filling and packaging machine shown in FIG. 3.
[図 10]図 3に示した縦型充填包装機によって製造されたガゼット包装袋を示す斜視 図である。  FIG. 10 is a perspective view showing a gusset packaging bag manufactured by the vertical filling and packaging machine shown in FIG. 3.
[図 11]ガゼット包装袋を型枠に入れて直方体形状に成型する様子を示す図である。  FIG. 11 is a diagram showing a state in which a gusset packaging bag is put into a mold and molded into a rectangular parallelepiped shape.
[図 12]Kシールバーの他の構成を示す図である。  FIG. 12 is a view showing another configuration of the K seal bar.
[図 13]図 12に示した Κシールバーを用いて製造されたガゼット包装袋を示す斜視図 である。  FIG. 13 is a perspective view showing a gusset packaging bag manufactured using the heel seal bar shown in FIG. 12.
発明を実施するための最良の形態  BEST MODE FOR CARRYING OUT THE INVENTION
[0024] 次に、本発明の実施形態について図面を参照して説明する。 Next, an embodiment of the present invention will be described with reference to the drawings.
[0025] 図 3に、本発明の一実施形態に係る縦型充填包装機の概略側面図を示す。 FIG. 3 shows a schematic side view of a vertical filling and packaging machine according to an embodiment of the present invention.
[0026] 図 3に示すように、本実施形態の縦型充填包装機は、投入パイプ 1から投入される 充填物 Αを袋詰めするものである。充填物 Aは、固形状、液状もしくはペースト状のも のからなる。投入パイプ 1の外周部には、シート状フィルム 20aを筒状に形成する製 袋ガイド 3が取付けられて ヽる。製袋ガイド 3によって筒状に形成された筒状フィルム 20は、製袋ガイド 3の下方に設けられた縦シール部 4によってその合わせ面が熱シ ールされる。 [0026] As shown in FIG. 3, the vertical filling and packaging machine of the present embodiment is for bagging the filling cake introduced from the input pipe 1. Filler A is made of solid, liquid or paste. A bag making guide 3 for forming a sheet-like film 20a into a cylindrical shape is attached to the outer periphery of the input pipe 1. The cylindrical film 20 formed into a cylindrical shape by the bag making guide 3 is heat sealed at its mating surface by the vertical seal portion 4 provided below the bag making guide 3.
[0027] 縦シール部 4の下方には、筒状フィルム 20を挟み込んで搬送する搬送装置である 、一方が 2つの円盤状ローラで構成された一対のフィルム送りローラ 6が設けられて ヽ る。  [0027] Below the vertical seal portion 4, there is provided a transport device that sandwiches and transports the tubular film 20, and a pair of film feed rollers 6 each having two disk-shaped rollers are provided.
[0028] 各フィルム送りローラ 6の下方には、筒状フィルム 20の両側を内側に折り込むため の折り込みガイド 2および折り込み板 5を含む折り込み装置が設けられて 、る。折り込 みガイド 2は 2つの半円筒状のガイド部材 2aからなり、それらの 2つのガイド部材 2aは 互いの間に隙間を空けた状態で略円筒形状を成すように対向配置されている（図 4 ( c)参照）。筒状フィルム 20はそれらの 2つのガイド部材 2aの間を通って下方に送られ 、このとき筒状フィルム 20の外側周囲が 2つのガイド部材 2aによって支持される。 [0028] A folding device including a folding guide 2 and a folding plate 5 for folding both sides of the tubular film 20 inward is provided below each film feed roller 6. The folding guide 2 is composed of two semi-cylindrical guide members 2a, and these two guide members 2a are opposed to each other so as to form a substantially cylindrical shape with a gap between them (see FIG. 4 (c)). The tubular film 20 is sent downward through the space between the two guide members 2a. At this time, the outer periphery of the tubular film 20 is supported by the two guide members 2a.
[0029] 折り込み板 5は 2枚設けられており、それぞれ、 2つのガイド部材 2a同士の隙間を通 つて 2つのガイド部材 2aの内側に対して進退可能になっている。これらの折り込み板 5が 2つのガイド部材 2aの内側に進入した状態で筒状フィルム 20が下方に送られると 、筒状フィルム 20の両側に V字型の折り込みが形成される。 [0029] Two folding plates 5 are provided, each of which can advance and retreat with respect to the inside of the two guide members 2a through a gap between the two guide members 2a. When the tubular film 20 is sent downward with these folding plates 5 entering the inside of the two guide members 2 a, V-shaped folding is formed on both sides of the tubular film 20.
[0030] 折り込みガイド 2および折り込み板 5の下方には、各フィルム送りローラ 6の回転に 同期して回転される 2つの円柱状ローラ力もなる一対のシゴキローラ 7が設けられて いる。各シゴキローラ 7は、筒状フィルム 20を挟み込むことで筒状フィルム 20内の充 填物 Aを分割して筒状フィルム 20に空充填部 20bを形成するものである。各シゴキロ ーラ 7は、筒状フィルム 20の送り方向に対してほぼ垂直な方向に互いに移動可能に 設けられている。 [0030] Below the folding guide 2 and the folding plate 5, there are provided a pair of squeeze rollers 7 that also have two cylindrical roller forces that are rotated in synchronization with the rotation of the film feeding rollers 6. Each squeeze roller 7 divides the filling material A in the tubular film 20 by sandwiching the tubular film 20 to form an empty filling portion 20b in the tubular film 20. The respective shigola rollers 7 are provided so as to be movable relative to each other in a direction substantially perpendicular to the feeding direction of the tubular film 20.
[0031] 各シゴキローラ 7の下方には、筒状フィルム 20の空充填部 20bを熱シールするため のシール装置 8が配置されている。シール装置 8は、それぞれヒータ（不図示）が内蔵 され、互いに筒状フィルム 20の移動方向に垂直な方向に移動可能な Kシールバー 8 0を有している。シール装置 8は、これらの Kシールバー 80によって筒状フィルム 20 の空充填部 20bを挟み、加熱及び加圧することで空充填部 20bを熱シールする構成 となっている。  [0031] Below each squeeze roller 7, a sealing device 8 for heat-sealing the empty filling portion 20b of the tubular film 20 is disposed. Each of the sealing devices 8 has a built-in heater (not shown), and has K seal bars 80 that can move in directions perpendicular to the moving direction of the tubular film 20. The sealing device 8 is configured such that the empty filling portion 20b of the tubular film 20 is sandwiched between these K seal bars 80, and the empty filling portion 20b is heat-sealed by heating and pressurizing.
[0032] さらに、シール装置 8の下方には、シール装置 8に熱シールされた部分を冷却及び 切断する冷却切断装置 9が設けられて 、る。冷却切断装置 9は冷却バー 90と冷却バ 一受け 91とを有しており、これらで筒状フィルム 20に形成された熱シール部を挟持 することで熱シール部の冷却を行う。冷却バー 90には筒状フィルム 20の熱シール部 を切断するための切断刃 90aが内蔵されている。冷却バー受け 91には、冷却バー 9 0から切断刃 90aが突出されたときに切断刃 90aを受ける凹部が形成されている。  [0032] Further, below the sealing device 8, a cooling and cutting device 9 for cooling and cutting the portion heat-sealed by the sealing device 8 is provided. The cooling and cutting device 9 has a cooling bar 90 and a cooling bar receiver 91, and cools the heat seal portion by sandwiching the heat seal portion formed on the tubular film 20 with these. The cooling bar 90 has a built-in cutting blade 90 a for cutting the heat seal portion of the tubular film 20. The cooling bar receiver 91 is formed with a recess for receiving the cutting blade 90a when the cutting blade 90a protrudes from the cooling bar 90.
[0033] ここで、図 4を参照して、本実施形態の縦型充填包装機におけるフィルム送りローラ 6、折り込みガイド 2、折り込み板 5、およびシゴキローラ 7の詳細について説明する。 図 4 (a)はそれらの構成の正面図、図 4 (b)は図 4 (a)に示した構成の左側面図、図 4 (c)は図 4 (a)に示した構成のうち主に折り込みガイドを示す平面図である。  Here, with reference to FIG. 4, the details of the film feeding roller 6, the folding guide 2, the folding plate 5, and the squeeze roller 7 in the vertical filling and packaging machine of the present embodiment will be described. Fig. 4 (a) is a front view of these configurations, Fig. 4 (b) is a left side view of the configuration shown in Fig. 4 (a), and Fig. 4 (c) is one of the configurations shown in Fig. 4 (a). It is a top view which mainly shows a folding guide.
[0034] 図 4に示すように、一対のフィルム送りローラ 6が各々の軸 61に固定されており、そ の軸 61は支持部 62によって回転自在に軸支されている。一方の軸 61の両端部には 第 1のシゴキローラアーム 71aの一方の端部が回動自在に連結されており、他方の 軸 61の両端部には第 2のシゴキローラアーム 71bの一方の端部が回動自在に連結 されている。各シゴキローラアーム 71a, 71bの他方の端部には、それぞれシゴキロ ーラ 7が回転可能に設けられている。この構成により、各シゴキローラ 7は、シゴキロー ラアーム 71a, 71bを介して連結された各々の軸 61を中心としてそれぞれ移動するこ とで互いに開閉するようになって!/、る。シゴキローラ 7をこのように開閉させる機構に ついては後述する。 [0034] As shown in FIG. 4, a pair of film feed rollers 6 is fixed to each of the shafts 61. The shaft 61 is rotatably supported by a support portion 62. One end of the first squeeze roller arm 71a is rotatably connected to both ends of one shaft 61, and one end of the second squeeze roller arm 71b is connected to both ends of the other shaft 61. The ends are connected so as to rotate freely. A squeal roller 7 is rotatably provided at the other end of each squeeze roller arm 71a, 71b. With this configuration, the squeeze rollers 7 open and close each other by moving around the respective shafts 61 connected via the squeal roller arms 71a and 71b. A mechanism for opening and closing the shigoki roller 7 in this way will be described later.
[0035] 折り込みガイド 2の各ガイド部材 2aにはアーム部 2bが設けられており、それらのァ ーム部 2aは各々の軸 61を軸支する支持部 62にそれぞれ固定されている。折り込み ガイド 2は、このような構成によって、フィルム送りローラ 6とシゴキローラ 7との間に配 置されている。  Each guide member 2a of the folding guide 2 is provided with an arm portion 2b, and these arm portions 2a are fixed to support portions 62 that support the respective shafts 61, respectively. The folding guide 2 is arranged between the film feed roller 6 and the squeeze roller 7 with such a configuration.
[0036] 2枚の折り込み板 5は、図 4 (b)に示すように、折り込みガイド 2を間において対向配 置されて!、る。各折り込み板 5は進退駆動部であるエアシリンダ 51に連結されて 、る 。各折り込み板 5は、エアシリンダ 51によって、折り込みガイド 2の内側に進入して互 いに接近した位置と、折り込みガイド 2の内側力 退出して互いに離れた位置とに互 いに同期して移動させられる。各々の折り込み板 5は、筒状フィルム 20の送り方向、 すなわち縦型充填包装機の上方力 下方へ向かうにつれて筒状フィルム 20の搬送 中心線に近づく斜面部 5aを有している。  [0036] As shown in Fig. 4 (b), the two folding plates 5 are disposed so as to face each other with the folding guide 2 interposed therebetween. Each folding plate 5 is connected to an air cylinder 51 which is an advancing / retreating drive unit. The folding plates 5 are moved in synchronism with each other by the air cylinder 51 between a position where the folding guide 2 enters the folding guide 2 and approaches each other, and a position where the inner force of the folding guide 2 exits and is separated from each other. Be made. Each folding plate 5 has a slope portion 5a that approaches the conveyance center line of the tubular film 20 as it goes in the feeding direction of the tubular film 20, that is, upward force of the vertical filling and packaging machine.
[0037] 次に、図 5を参照してシゴキローラ 7を開閉させる機構について説明する。図 5はシ ゴキローラを開閉させるシゴキローラ開閉機構を示す図である。図 5 (a)はシゴキロー ラが開いた状態を示し、図 5 (b)はシゴキローラが閉じた状態を示している。図 5 (c)は 図 5 (b)に示したシゴキローラ開閉機構の右側面図である。図 5 (d)は図 5 (b)に示し たシゴキローラ開閉機構の上面図である。  Next, a mechanism for opening and closing the squeeze roller 7 will be described with reference to FIG. FIG. 5 is a view showing a squeeze roller opening / closing mechanism that opens and closes the squeeze roller. Fig. 5 (a) shows the state where the squeal roller is open, and Fig. 5 (b) shows the state where the squeeze roller is closed. FIG. 5 (c) is a right side view of the squeeze roller opening / closing mechanism shown in FIG. 5 (b). FIG. 5 (d) is a top view of the squeeze roller opening / closing mechanism shown in FIG. 5 (b).
[0038] 本実施形態におけるシゴキローラ開閉機構は、折り込みガイド 2の両側の 2つの第 1 のシゴキローラアーム 71aのそれぞれに一方の端部が回動可能に連結された第 1の アーム 30と、折り込みガイド 2の両側の 2つの第 2のシゴキローラアーム 71b同士を連 結している連結部材 32に一方の端部が回動可能に連結された第 2のアーム 31とを 有している。 [0038] The squeeze roller opening / closing mechanism according to the present embodiment includes a first arm 30 having one end rotatably connected to each of the two first squeeze roller arms 71a on both sides of the fold guide 2, and a fold A second arm 31 having one end rotatably connected to a connecting member 32 that connects two second squeeze roller arms 71b on both sides of the guide 2. Have.
[0039] 各々の第 1のアーム 30の他方の端部は、回転軸 33の両端に設けられたクランク 38 の端部付近にそれぞれ回動可能に連結されて 、る。クランク 38の端部は回転軸 33 の中心力 偏心している。  [0039] The other end of each first arm 30 is rotatably connected to the vicinity of the end of a crank 38 provided at both ends of the rotating shaft 33. The end of the crank 38 is eccentric to the central force of the rotating shaft 33.
[0040] 回転軸 33のほぼ中央部には、円形の外周面を有し、回転軸 33の中心から偏心し た状態で回転軸 33に固定された偏心部材 31aが設けられている。第 2のアーム 31の 他方の端部には偏心部材 3 laの外周面と実質的に同径の円形内周面が形成されて おり、この円形内周面は偏心部材 31aの外周面に回転自在に支持されている。  An eccentric member 31 a that has a circular outer peripheral surface and is fixed to the rotating shaft 33 in a state of being eccentric from the center of the rotating shaft 33 is provided at the substantially central portion of the rotating shaft 33. A circular inner peripheral surface having substantially the same diameter as the outer peripheral surface of the eccentric member 3 la is formed at the other end of the second arm 31. The circular inner peripheral surface rotates to the outer peripheral surface of the eccentric member 31a. It is supported freely.
[0041] 回転軸 33の一方の端部と偏心部材 31aとの間には、回転軸 33と同軸に回転軸 33 に固定されたプーリ 34が設けられている。プーリ 34の上方にはモータ 37によって回 転駆動されるプーリ 35が配置されている。プーリ 34とプーリ 35の周囲〖こはベルト 36 が巻かれている。これらのプーリ 34, 35、ベルト 36およびモータ 37〖こよって、回転軸 33を回転駆動する駆動部が構成されている。モータ 37によってプーリ 35が回転駆 動させられると、その駆動力がベルト 36を介してプーリ 34に伝達され、これによつて 回転軸 33が回転する。  [0041] Between one end of the rotating shaft 33 and the eccentric member 31a, a pulley 34 fixed to the rotating shaft 33 coaxially with the rotating shaft 33 is provided. A pulley 35 that is driven to rotate by a motor 37 is disposed above the pulley 34. A belt 36 is wound around the pulley 34 and the pulley 35. The pulleys 34 and 35, the belt 36, and the motor 37 constitute a drive unit that rotationally drives the rotary shaft 33. When the pulley 35 is driven to rotate by the motor 37, the driving force is transmitted to the pulley 34 through the belt 36, and the rotating shaft 33 is thereby rotated.
[0042] 続いて、このシゴキローラ開閉機構の動作について説明する。  [0042] Next, the operation of the squeeze roller opening / closing mechanism will be described.
[0043] 回転軸 33が図 5 (a)に示す第 1の回転位置にあるとき、クランク 38の端部は回転軸 33の中心よりも図示左側にあり、第 1のアーム 30を介してクランク 38に連結されてい る第 1のシゴキローラアーム 71aは回転軸 33から遠ざ力る位置に押し遣られている。 一方、偏心部材 31aの中心は回転軸 33の中心よりも図示右側にあり、第 2のアーム 3 1を介して偏心部材 31aに連結されている第 2のシゴキローラアーム 71bは回転軸 33 に近づく位置に引き寄せられている。これにより、各シゴキローラアーム 71a, 71bの 端部に設けられたシゴキローラ 7は互いに離間している。  When the rotary shaft 33 is in the first rotational position shown in FIG. 5 (a), the end of the crank 38 is on the left side of the center of the rotary shaft 33, and the crank is connected via the first arm 30. The first squeeze roller arm 71a connected to 38 is pushed away from the rotating shaft 33. On the other hand, the center of the eccentric member 31a is on the right side of the rotation shaft 33 in the drawing, and the second roller roller arm 71b connected to the eccentric member 31a via the second arm 31 approaches the rotation shaft 33. Has been drawn to position. Thus, the squeeze rollers 7 provided at the ends of the squeeze roller arms 71a and 71b are separated from each other.
[0044] この状態力もモータ 37を駆動させてプーリ 34を図示矢印方向に回転させると、クラ ンク 38の端部が回転軸 33の中心よりも図示右側に移動し、偏心部材 31aの中心が 回転軸 33の中心よりも図示左側に移動していく。これに伴って、第 1のシゴキローラ アーム 71aは回転軸 33の方に引き寄せられるように移動し、第 2のシゴキローラァー ム 71bは回転軸 33から遠ざけられるように移動して!/、く。 [0045] 図 5 (a)に示す状態力も回転軸 33が約半周分回転して第 2の回転位置に配置され ると、図 5 (b)に示すように、第 1のシゴキローラアーム 71aは第 1のアーム 30を介して 回転軸 33に近づく位置に引き寄せられ、第 2のシゴキローラアーム 71bは第 2のァー ム 31を介して回転軸 33から遠ざ力る位置に押し遣られ、第 1及び第 2のシゴキローラ アーム 71a, 71bが互いに最も接近した状態となる。このとき、各々のシゴキローラ 7は 筒状フィルム 20の搬送中心線 C上で互 、に押圧した状態で当接して 、る。 [0044] When this state force also drives the motor 37 to rotate the pulley 34 in the direction of the arrow in the figure, the end of the crank 38 moves to the right side of the figure from the center of the rotary shaft 33, and the center of the eccentric member 31a rotates. It moves to the left side of the figure from the center of the shaft 33. Accordingly, the first squeeze roller arm 71a moves so as to be drawn toward the rotary shaft 33, and the second squeeze roller arm 71b moves so as to be moved away from the rotary shaft 33! /. [0045] As shown in FIG. 5 (b), the state force shown in FIG. 5 (a) is also obtained when the rotating shaft 33 is rotated by about a half turn and disposed at the second rotational position, as shown in FIG. 5 (b). Is pulled closer to the rotary shaft 33 via the first arm 30, and the second squeeze roller arm 71b is pushed away from the rotary shaft 33 via the second arm 31. The first and second squeeze roller arms 71a and 71b are in the closest state to each other. At this time, the squeeze rollers 7 are in contact with each other while being pressed against each other on the conveyance center line C of the tubular film 20.
[0046] 本実施形態におけるシゴキローラ開閉機構によれば、シゴキローラ開閉機構が閉じ た状態のときに、各々のシゴキローラ 7は筒状フィルム 20の搬送中心線 C上で互いに 押圧された状態で当接する。そのため、シゴキローラ 7の間に挟んだ筒状フィルム 20 を強く扱くことができるので、筒状フィルム 20の両側が内側に折り込まれている場合 や、さらには筒状フィルム 20内に充填された充填物が高粘度のものである場合であ つても、筒状フィルム 20内で充填物を良好に分離することができる。  According to the squeeze roller opening / closing mechanism in the present embodiment, when the squeeze roller opening / closing mechanism is closed, the squeeze rollers 7 abut on each other on the conveyance center line C of the tubular film 20 in a pressed state. Therefore, the cylindrical film 20 sandwiched between the squeeze rollers 7 can be handled strongly, so that both sides of the cylindrical film 20 are folded inward, and further, the filling filled in the cylindrical film 20 is possible. Even when the product has a high viscosity, the packing can be satisfactorily separated in the tubular film 20.
[0047] 仮に、 2つのシゴキローラ 7による狭持部が筒状フィルム 20の搬送路の中心線じか らずれた状態でシゴキローラ 7による筒状フィルム 20の扱き動作が行われると、シゴ キローラ 7によって扁平にされた筒状フィルム 20の両面が互いにずれてしまい、その 後にシール装置 8で筒状フィルム 20が熱シールされる際に筒状フィルム 20にしわが 生じることがある。し力しながら、本実施形態によれば、筒状フィルム 20は搬送路の 中心線 C上で 2つのシゴキローラ 7の間に挟まれた状態が保持されるので、シゴキロ ーラ 7によって扁平にされた筒状フィルム 20の両面がシゴキローラ 7による扱き動作 中に互 ヽにずれることはなく、その後にシール装置 8で筒状フィルム 20が熱シールさ れる際に筒状フィルム 20にしわが生じることはない。  [0047] If the handling operation of the tubular film 20 by the squeeze roller 7 is performed in a state where the sandwiching portion by the two squeeze rollers 7 is displaced from the center line of the conveyance path of the tubular film 20, the squeeze roller 7 When both surfaces of the flattened tubular film 20 are displaced from each other and the tubular film 20 is heat-sealed by the sealing device 8 after that, the tubular film 20 may be wrinkled. However, according to the present embodiment, since the cylindrical film 20 is held between the two squeeze rollers 7 on the center line C of the conveyance path, the cylindrical film 20 is flattened by the squeal roller 7. The both sides of the tubular film 20 are not shifted mutually during handling operation by the squeeze roller 7, and the tubular film 20 is not wrinkled when the tubular film 20 is heat-sealed by the sealing device 8 after that. .
[0048] ここで、図 6を参照して、シール装置 8における Kシールバー 80の構成について説 明する。図 6 (a)は Kシールバーの正面図であり、図 6 (b)はその右側面図である。  [0048] Here, the configuration of the K seal bar 80 in the seal device 8 will be described with reference to FIG. Fig. 6 (a) is a front view of the K seal bar, and Fig. 6 (b) is a right side view thereof.
[0049] 筒状フィルム 20の空充填部 20bを加圧する Kシールバー 80の加圧面には、筒状フ イルム 20の横方向に延び、空充填部 20bを横方向に熱シールする横シール部 81が 設けられている。さらに、横シール部 81の上下両側には、約 90度の角度に開いた V 字形を成す一対の斜めシール部 82がそれぞれ設けられている。横シール部 81と斜 めシール部 82は K字状の熱シール部を構成している。 [0050] 次に、図 7から図 9を参照して、本実施形態の縦型充填包装機による充填包装動作 について説明する。図 7および図 8は、本実施形態の縦型充填包装機による充填包 装動作を示す図である。図 9は本実施形態の縦型充填包装機による充填包装動作 のタイミングチャートである。 [0049] Pressurizing the empty filling portion 20b of the tubular film 20 On the pressure surface of the K-seal bar 80, a lateral sealing portion extends in the lateral direction of the tubular film 20 and heat-seals the empty filling portion 20b in the lateral direction. 81 is provided. Further, a pair of oblique seal portions 82 each having a V shape opened at an angle of about 90 degrees are provided on both upper and lower sides of the horizontal seal portion 81. The horizontal seal part 81 and the inclined seal part 82 constitute a K-shaped heat seal part. Next, with reference to FIGS. 7 to 9, the filling and packaging operation by the vertical filling and packaging machine of the present embodiment will be described. FIG. 7 and FIG. 8 are diagrams showing the filling and packaging operation by the vertical filling and packaging machine of the present embodiment. FIG. 9 is a timing chart of the filling and packaging operation by the vertical filling and packaging machine of this embodiment.
[0051] まず、はじめの工程として、図 7 (a)に示すように、折り込み板 5、シゴキローラ 7及び シール装置 8の Kシールバー 80を開いた状態としておく。この状態では、前回の動 作でシール装置 8により筒状フィルム 20が熱シールされた部分であるシール部が K シールバー 80の間に位置している。また、筒状フィルム 20内には、前回の動作で投 入パイプ 1から投入された充填物の一部が入っている。  First, as the first step, as shown in FIG. 7 (a), the folding plate 5, the squeeze roller 7 and the K seal bar 80 of the seal device 8 are left open. In this state, the seal portion, which is the portion where the cylindrical film 20 is heat-sealed by the sealing device 8 in the previous operation, is located between the K seal bars 80. In addition, the cylindrical film 20 contains a part of the filler charged from the charging pipe 1 in the previous operation.
[0052] なお、図 7 (a)では、折り込み板 5が開いた状態として、折り込み板 5が折り込みガイ ド 2の外側に完全に退出した状態が示されている。しかしながら、折り込み板 5が開い た状態において折り込み板 5の一部が折り込みガイド 2の内部に進入した状態となつ ていてもよい。  FIG. 7A shows a state in which the folding plate 5 is completely retracted to the outside of the folding guide 2 as the folding plate 5 is opened. However, a part of the folding plate 5 may enter the folding guide 2 when the folding plate 5 is open.
[0053] 続いて、投入パイプ 1から筒状フィルム 20内に所定の量の充填物を投入しつつ、フ イルム送りローラ 6を回転させて筒状フィルム 20の下方への送り動作を開始する。さら に、エアシリンダ 51 (図 4参照）およびモータ 37 (図 5参照）をそれぞれ駆動させて、 図 7 (b)に示すように折り込み板 5およびシゴキローラ 7を閉じる。  Subsequently, while feeding a predetermined amount of filling material into the cylindrical film 20 from the feeding pipe 1, the film feeding roller 6 is rotated to start a feeding operation downward of the cylindrical film 20. Further, the air cylinder 51 (see FIG. 4) and the motor 37 (see FIG. 5) are driven to close the folding plate 5 and the squeeze roller 7 as shown in FIG. 7 (b).
[0054] 筒状フィルム 20内に充填物が投入されると、その重みによって筒状フィルム 20に「 張り」が生じ、筒状フィルム 20が折り込みガイド 2の内面に押しつけられた状態になる 。このように張りが生じた筒状フィルム 20に対してその両側力も折り込み板 5を押し込 んだ状態で筒状フィルム 20を下方へ送ることによって、折り込み板 5よりも下流側で は筒状フィルム 20は両側に V字形の折り込み部が形成される。なお、折り込み板 5は 、筒状フィルム 20の送り方向、すなわち縦型充填包装機の上方から下方へ向かうに つれて折り込みガイド 2側に近づく斜面部 5aを有しており、筒状フィルム 20はこの斜 面部 5aに沿って滑らかに徐々に V字形に折り込まれていく。  When the filler is put into the cylindrical film 20, “weight” is generated in the cylindrical film 20 due to the weight, and the cylindrical film 20 is pressed against the inner surface of the folding guide 2. The tubular film 20 is sent to the lower side of the folded-up plate 5 by feeding the folded-down plate 5 in a state where the folding plate 5 is pushed into the tubular film 20 thus stretched. 20 has V-shaped folds on both sides. The folding plate 5 has a slope portion 5a that approaches the folding guide 2 side in the feeding direction of the cylindrical film 20, that is, from the upper side to the lower side of the vertical filling and packaging machine. It is gradually and gradually folded into a V-shape along the slope 5a.
[0055] シゴキローラ 7は、このように形成された筒状フィルム 20の V字形折り込み部を扱 ヽ て筒状フィルム 20の内部の充填物を分割し、図 7 (c)に示すように、筒状フィルム 20 に充填物が存在しな ヽ空充填部 20bを形成する。 [0056] このようにして所定の長さ分の筒状フィルム 20を下方に送った後、フィルム送りロー ラ 6による筒状フィルム 20の送り動作を停止する。そして、図 7 (d)に示すようにシー ル装置 8の Kシールバー 80を閉じ、各 Kシールバー 80の横シール部 81及び斜めシ ール部 82で空充填部 20bを加熱及び加圧することによって、空充填部 20bの被カロ 熱領域を熱シールする。 Kシールバー 80は少なくとも一方がヒータ（不図示）を内蔵 しており、そのヒータで発生する熱によって空充填部 20bを加熱する。 [0055] The squeeze roller 7 handles the V-shaped folded portion of the cylindrical film 20 formed in this way to divide the filling inside the cylindrical film 20, and as shown in FIG. A hollow filling portion 20b in which no filler is present is formed on the film-like film 20. [0056] After feeding the cylindrical film 20 of a predetermined length downward in this way, the feeding operation of the tubular film 20 by the film feeding roller 6 is stopped. Then, as shown in FIG. 7 (d), the K seal bar 80 of the seal device 8 is closed, and the empty filling portion 20b is heated and pressurized by the lateral seal portion 81 and the oblique seal portion 82 of each K seal bar 80. As a result, the heat-treated area of the empty filling portion 20b is heat-sealed. At least one of the K seal bars 80 has a built-in heater (not shown), and the empty filling portion 20b is heated by heat generated by the heater.
[0057] このようにして Kシールバー 80で熱シールを行った後、図 8 (e)に示すように Kシー ルバ一 80を開く。空充填部 20bには、横シール部 81による横シールが施されている とともに、その上下に斜めシール部 82による斜めシールが施されている。  After performing heat sealing with the K seal bar 80 in this way, the K seal bar 80 is opened as shown in FIG. 8 (e). The empty filling portion 20b is laterally sealed by the lateral seal portion 81, and obliquely sealed by the oblique seal portion 82 above and below it.
[0058] 続いて、エアシリンダ 51 (図 4参照）およびモータ 37 (図 5参照）をそれぞれ駆動さ せて、図 8 (f)に示すように折り込み板 5およびシゴキローラ 7を開く。  Subsequently, the air cylinder 51 (see FIG. 4) and the motor 37 (see FIG. 5) are driven to open the folding plate 5 and the squeeze roller 7 as shown in FIG. 8 (f).
[0059] 続いて、図 8 (g)に示すように、フィルム送りローラ 6を回転させて、空充填部 20bに 形成された横シールが冷却切断装置 9の高さに配置されるまで筒状フィルム 20を下 方へ送る。  Subsequently, as shown in FIG. 8 (g), the film feed roller 6 is rotated so that the horizontal seal formed in the empty filling portion 20b is cylindrical until it is disposed at the height of the cooling and cutting device 9. Send film 20 downward.
[0060] 最後に、図 8 (h)に示すように、冷却切断装置 9の冷却バー 90と冷却バー受け 91を 閉じてそれらで空充填部 20bを挟み、空充填部 20bの横シール部分を冷却する。そ の後、冷却バー 90の内部に収容されている切断刃 90aを冷却バー受け 91側に突出 させ、空充填部 20bの横シール部分を横方向に切断する。すると、充填物を収容し たガゼット包装袋 Gが冷却切断装置 9の下方に落下する。その後も上記の工程を繰り 返すことで、ガゼット包装袋 Gが連続して製造される。  [0060] Finally, as shown in FIG. 8 (h), the cooling bar 90 and the cooling bar receiver 91 of the cooling cutting device 9 are closed and the empty filling portion 20b is sandwiched between them, and the horizontal seal portion of the empty filling portion 20b is removed. Cooling. Thereafter, the cutting blade 90a accommodated in the cooling bar 90 is protruded toward the cooling bar receiver 91, and the horizontal seal portion of the empty filling portion 20b is cut in the horizontal direction. Then, the gusset packaging bag G containing the filling material falls below the cooling cutting device 9. Thereafter, the gusset packaging bag G is continuously manufactured by repeating the above process.
[0061] 本実施形態の縦型充填包装機によれば、折り込みガイド 2および折り込み板 5が筒 状フィルム 20の外側に配置されている。そのため、従来技術のように筒状フィルム 20 内にガイドアームが設置された構成とは異なり、投入パイプ 1から筒状フィルム 20内 に投入された充填物が折り込みガイド 2や折り込み板 5に付着することがない。そのた め、折り込みガイド 2や折り込み板 5に充填物が付着することによる、筒状フィルム 20 内での充填物の流動性の悪ィ匕は生じない。また、折り込みガイド 2や折り込み板 5を 洗浄する必要がな!、ので、充填包装機のメンテナンスが容易である。  [0061] According to the vertical filling and packaging machine of the present embodiment, the folding guide 2 and the folding plate 5 are arranged outside the cylindrical film 20. Therefore, unlike the configuration in which the guide arm is installed in the cylindrical film 20 as in the prior art, the filler charged into the cylindrical film 20 from the charging pipe 1 adheres to the folding guide 2 and the folding plate 5. There is nothing. Therefore, the fluidity of the filler in the tubular film 20 due to the filler adhering to the folding guide 2 and the folding plate 5 does not occur. In addition, since it is not necessary to clean the folding guide 2 and the folding plate 5, the maintenance of the filling and packaging machine is easy.
[0062] 図 10は、本実施形態の縦型充填包装機によって製造されたガゼット包装袋を示す 斜視図である。本実施形態の縦型充填包装機によって製造されるガゼット包装袋 G は、ガゼット部に形成された斜めシール G1によって、その隅部に充填物が入り込ま ないようになっている。したがって、ガゼット部の中に充填物が入り込んでガゼット部 が膨らむようなことはない。そのため、例えば図 11に示すようにガゼット包装袋 Gを型 枠 Fに入れて直方体形状に成型した後にその形状を保ちやすいので、ガゼット包装 袋 Gの流通時の箱詰めや、陳列棚での陳列などを良好に行うことが可能となる。 FIG. 10 shows a gusset packaging bag manufactured by the vertical filling and packaging machine of the present embodiment. It is a perspective view. The gusset packaging bag G manufactured by the vertical filling and packaging machine of the present embodiment is configured so that the filling does not enter the corners by the oblique seal G1 formed in the gusset portion. Therefore, the filling does not enter the gusset portion and the gusset portion does not swell. Therefore, for example, as shown in Fig. 11, it is easy to keep the shape after putting the gusset packaging bag G into the form F and forming it into a rectangular parallelepiped shape, so that the packaging of the gusset packaging bag G during distribution, display on the display shelf, etc. Can be performed satisfactorily.
[0063] なお、本実施形態では、シール装置 8は、筒状フィルム 20の熱シールのみを行うも のとし、シール装置 8で熱シールされた部分の切断は、シール装置 8の下方に配置さ れた冷却切断装置 9で行う例を示した。し力しながら、本実施形態の縦型充填包装 機に適用できるシール装置 8の構成はそれに限られず、シール装置 8が熱シールさ れた部分を切断する切断装置 9の機能を付加した構成とすることもできる。この場合 は、 2つの Kシールバー 80のうちの一方の横シール部 81に切断刃を進退可能に設 けるとともに、他方の横シール部 81には、この切断刃を突出させた際のカツタの受け となる凹部を設け、熱シールの終了後、 2つの Kシールバー 80でフィルムを加圧した ままで切断刃を突出させて筒状フィルム 20を切断する。  [0063] In the present embodiment, the sealing device 8 performs only heat sealing of the tubular film 20, and the cut of the portion heat-sealed by the sealing device 8 is disposed below the sealing device 8. An example is shown in which the cooling and cutting device 9 is used. However, the configuration of the sealing device 8 that can be applied to the vertical filling and packaging machine of this embodiment is not limited thereto, and the configuration in which the function of the cutting device 9 that cuts the heat-sealed portion of the sealing device 8 is added. You can also In this case, a cutting blade is provided in one of the two K seal bars 80 so that the cutting blade can be advanced and retracted, and the other horizontal sealing portion 81 is provided with the cutter when the cutting blade is projected. After the heat seal is completed, the tubular film 20 is cut by projecting the cutting blade while pressing the film with the two K seal bars 80.
[0064] (変形例）  [Modification]
図 12は、 Kシールバーの他の構成を示す図である。図 12に示す Kシールバー 80 の加圧面には、筒状フィルム 20の横方向に延び、空充填部 20bを横方向に熱シー ルする横シール部 81が設けられている。さらに、横シール部 81の上下両側には、横 シール部 81に対してそれぞれ約 45度の角度に延びた一対の斜めシール部 82がそ れぞれ設けられている。横シール部 81の各側に設けられた各々の斜めシール部 82 は、互いに離間している。横シール部 81と斜めシール部 82は、略 K字状の熱シール 部を構成している。  FIG. 12 is a view showing another configuration of the K seal bar. A press surface of the K seal bar 80 shown in FIG. 12 is provided with a horizontal seal portion 81 extending in the horizontal direction of the tubular film 20 and thermally sealing the empty filling portion 20b in the horizontal direction. Further, a pair of oblique seal portions 82 extending at an angle of about 45 degrees with respect to the horizontal seal portion 81 are provided on both upper and lower sides of the horizontal seal portion 81. The oblique seal portions 82 provided on each side of the horizontal seal portion 81 are separated from each other. The horizontal seal portion 81 and the oblique seal portion 82 constitute a substantially K-shaped heat seal portion.
[0065] 図 13は、図 12に示した Kシールバーを用いて製造されたガゼット包装袋を示す斜 視図である。図 13に示すガゼット包装袋は、図 10に示したガゼット包装袋に比べて 横幅が広い。図 12に示すように斜めシール部 82が互いに離間した Kシールバー 80 を用いることによって、横幅が広いガゼット包装袋の隅部に斜めシール G1を形成す ることが可能である。図 13に示すガゼット包装袋 Gも、ガゼット部に形成された斜めシ ール Glによって、その隅部に充填物が入り込まないようになつている。したがって、 ガゼット部の中に充填物が入り込んでガゼット部が膨らむようなことはな!/、。 FIG. 13 is a perspective view showing a gusset packaging bag manufactured using the K seal bar shown in FIG. The gusset packaging bag shown in FIG. 13 is wider than the gusset packaging bag shown in FIG. As shown in FIG. 12, by using the K seal bar 80 in which the diagonal seal portions 82 are separated from each other, the diagonal seal G1 can be formed at the corner of the wide gusset packaging bag. The gusset packaging bag G shown in Fig. 13 is also an oblique sheet formed on the gusset portion. Gl prevents the filling from entering the corners. Therefore, it is not possible for the filling to enter the gusset part and the gusset part to expand! /.

Claims

請求の範囲 The scope of the claims
[1] 内容物が充填される筒状フィルムを鉛直下方に搬送する搬送装置と、  [1] A transport device that transports a cylindrical film filled with contents vertically downward;
該搬送手段によって搬送された前記筒状フィルムの両側を前記筒状フィルムの内 側に折り込む折り込み装置と、  A folding device for folding both sides of the cylindrical film conveyed by the conveying means into the inner side of the cylindrical film;
内容物が投入された前記筒状フィルムを挟み込みつつ回転して前記筒状フィルム を下方に送ることで前記筒状フィルムに空充填部を形成する一対のシゴキローラと、 前記筒状フィルムを間にお 、て対向配置されたシールバーを備え、該シールバー で前記筒状フィルムを挟み込んで熱シールするシール装置と、  A pair of squeeze rollers that form an empty filling portion in the tubular film by rotating while sandwiching the tubular film into which the contents are inserted and feeding the tubular film downward, and the tubular film interposed therebetween A seal device disposed opposite to the seal bar, and the seal film sandwiches the tubular film and heat-seals;
を備えた縦型充填包装機であって、  A vertical filling and packaging machine comprising:
前記折り込み装置は、  The folding device is
前記筒状フィルムの前記両側に対応する部分に隙間が形成されており、前記筒状 フィルムの外側を支持する折り込みガイドと、  A gap is formed in portions corresponding to both sides of the tubular film, and a folding guide that supports the outside of the tubular film;
前記折り込みガイドに形成された前記隙間を通して前記折り込みガイドの内側に進 退可能な一対の折り込み板と、  A pair of folding plates capable of moving back and forth inside the folding guide through the gap formed in the folding guide;
を有する縦型充填包装機。  A vertical filling and packaging machine.
[2] 前記折り込みガイドは 2つの半円筒状のガイド部材力 なり、該 2つのガイド部材は 互いの間に前記隙間を空けた状態で略円筒形状を成すように対向配置されている、 請求項 1に記載の縦型充填包装機。  [2] The folding guide has two semi-cylindrical guide member forces, and the two guide members are arranged to face each other so as to form a substantially cylindrical shape with the gap therebetween. The vertical filling and packaging machine according to 1.
[3] 前記一対の折り込み板の各々は、前記筒状フィルムの搬送方向の上方から下方へ 向かうにつれて前記筒状フィルムの搬送中心線に近づく斜面部を有している、請求 項 1または 2に記載の縦型充填包装機。 [3] The pair of folding plates according to claim 1 or 2, wherein each of the pair of folding plates has a slope portion that approaches the transport center line of the tubular film as it goes from the upper side to the lower side in the transport direction of the tubular film. The vertical filling and packaging machine described.
[4] 前記一対の折り込み板を、互いに接近して前記折り込みガイドの内側に進入した 位置と、互いに離れて前記折り込みガイドの外側に退出した位置とに移動させる進 退駆動部を備えている、請求項 1から 3のいずれか 1項に記載の縦型充填包装機。 [4] It includes an advancing / retreating drive unit that moves the pair of folding plates to a position where the pair of folding plates approach each other and enter the inside of the folding guide, and a position where they move away from each other and exit to the outside of the folding guide. The vertical filling and packaging machine according to any one of claims 1 to 3.
[5] 前記シールバーは、前記筒状フィルムの横方向に延びた横シール部と、該横シ一 ル部の上下両側にそれぞれ設けられた一対の斜めシール部とを有して 、る、請求項[5] The seal bar includes a horizontal seal portion extending in the horizontal direction of the cylindrical film, and a pair of oblique seal portions respectively provided on both upper and lower sides of the horizontal seal portion. Claim
1から 4のいずれか 1項に記載の縦型充填包装機。 5. The vertical filling and packaging machine according to any one of 1 to 4.
[6] 前記一対のシゴキローラの各々は、一方の端部が回動可能に支持されたシゴキロ ーラアームの他方の端部にそれぞれ設けられており、 [6] Each of the pair of squeeze rollers has a squeegee roller having one end rotatably supported. -It is provided at the other end of the arm,
前記シゴキローラアームの各々を、前記一対のシゴキローラを互いに当接させる閉 位置と互いに離間させる開位置との間で前記一方の端部を中心として個別に回動さ せる開閉駆動部を備えている、請求項 1から 5のいずれか 1項に記載の縦型充填包 装機。  Each of the squeeze roller arms is provided with an opening / closing drive part that individually rotates around the one end part between a closed position where the pair of squeeze rollers contact each other and an open position where the pair of squeeze rollers are separated from each other. The vertical filling and packaging machine according to any one of claims 1 to 5.
[7] 前記開閉駆動部は、一方の前記シゴキローラアームに一方の端部が連結された第 1のアームと、他方の前記シゴキローラアームに一方の端部が連結された第 2のァー ムと、前記第 1および第 2のアームの他方の端部がそれぞれ連結された回転軸と、該 回転軸を回転駆動する駆動部と、を有し、  [7] The opening / closing drive unit includes a first arm having one end connected to one of the squeeze roller arms and a second arm having one end connected to the other squeeze roller arm. A rotating shaft to which the other ends of the first and second arms are respectively connected, and a drive unit that rotationally drives the rotating shaft,
前記第 1および第 2のアームの他方の端部は、それぞれ、前記回転軸の回転中心 力 偏心した状態で前記回転軸に連結されており、  The other ends of the first and second arms are respectively connected to the rotary shaft in a state where the rotational center force of the rotary shaft is eccentric,
前記回転軸が第 1の回転位置にあるとき、前記一方のシゴキローラアームは前記第 1のアームを介して前記回転軸から遠ざかる位置に押し遣られ、前記他方のシゴキロ ーラアームは前記第 2のアームを介して前記回転軸に近づく位置に引き寄せられ、こ れにより前記第 1および第 2のシゴキローラアームは前記一対のシゴキローラを互い に離間させる開位置に配置され、  When the rotation shaft is in the first rotation position, the one squeeze roller arm is pushed to a position away from the rotation shaft through the first arm, and the other squeal roller arm is the second arm. Through which the first and second squeeze roller arms are arranged at an open position that separates the pair of squeeze rollers from each other,
前記回転軸が第 2の回転位置にあるとき、前記一方のシゴキローラアームは前記第 1のアームを介して前記回転軸に近づく位置に引き寄せられ、前記他方のシゴキロ ーラアームは前記第 2のアームを介して前記回転軸力 遠ざ力る位置に押し遣られ、 これにより前記第 1および第 2のシゴキローラアームは前記一対のシゴキローラを互 いに当接させる閉位置に配置される、請求項 6に記載の縦型充填包装機。  When the rotation shaft is in the second rotation position, the one squeeze roller arm is drawn to a position approaching the rotation shaft via the first arm, and the other sway roller arm is moved to the second arm. The first and second squeeze roller arms are disposed in a closed position where the pair of squeeze rollers are brought into contact with each other. The vertical filling and packaging machine described in 1.
[8] 前記一対のシゴキローラが前記閉位置にあるとき、前記一対のシゴキローラによる 狭持部は前記筒状フィルムの搬送中心線上に位置して 、る、請求項 6または 7に記 載の縦型充填包装機。 [8] The vertical type according to claim 6 or 7, wherein when the pair of squeeze rollers are in the closed position, a sandwiching portion by the pair of squeeze rollers is located on a conveyance center line of the cylindrical film. Filling packaging machine.
PCT/JP2006/322173 2006-11-07 2006-11-07 Vertical filling/packing machine WO2008056408A1 (en)

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JP2008542964A JP4955695B2 (en) 2006-11-07 2006-11-07 Vertical filling and packaging machine
CA2668401A CA2668401C (en) 2006-11-07 2006-11-07 Vertical filling and packing machine
US12/447,879 US20100037567A1 (en) 2006-11-07 2006-11-07 Vertical filling and packing machine
PCT/JP2006/322173 WO2008056408A1 (en) 2006-11-07 2006-11-07 Vertical filling/packing machine
CN2006800563062A CN101557985B (en) 2006-11-07 2006-11-07 Vertical filling/packing machine
KR1020097011675A KR20090089864A (en) 2006-11-07 2006-11-07 Vertical filling / packing machine

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JP (1) JP4955695B2 (en)
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JP4955695B2 (en) 2012-06-20
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