WO2008044662A1 - Vertical seal mechanism - Google Patents

Vertical seal mechanism Download PDF

Info

Publication number
WO2008044662A1
WO2008044662A1 PCT/JP2007/069628 JP2007069628W WO2008044662A1 WO 2008044662 A1 WO2008044662 A1 WO 2008044662A1 JP 2007069628 W JP2007069628 W JP 2007069628W WO 2008044662 A1 WO2008044662 A1 WO 2008044662A1
Authority
WO
WIPO (PCT)
Prior art keywords
vertical seal
packaging material
width
vertical
seal mechanism
Prior art date
Application number
PCT/JP2007/069628
Other languages
French (fr)
Japanese (ja)
Inventor
Satoshi Hashimoto
Masahiko Tatsuoka
Yukio Sasaki
Original Assignee
Ishida 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 Ishida Co., Ltd. filed Critical Ishida Co., Ltd.
Priority to BRPI0719171-5A2A priority Critical patent/BRPI0719171A2/en
Priority to AU2007305506A priority patent/AU2007305506A1/en
Priority to US12/440,692 priority patent/US20100043352A1/en
Priority to GB0906584A priority patent/GB2455949B/en
Publication of WO2008044662A1 publication Critical patent/WO2008044662A1/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
    • 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
    • B65B51/18—Applying or generating heat or pressure or combinations thereof by endless bands or chains
    • 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
    • B29C66/05—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/135—Single hemmed joints, i.e. one of the parts to be joined being hemmed in the joint area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/347—General aspects dealing with the joint area or with the area to be joined using particular temperature distributions or gradients; using particular heat distributions or gradients
    • B29C66/3472—General aspects dealing with the joint area or with the area to be joined using particular temperature distributions or gradients; using particular heat distributions or gradients in the plane of the joint, e.g. along the joint line in the plane of the joint or perpendicular to the joint line in the plane of the joint
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/49—Internally supporting the, e.g. tubular, article during joining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—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
    • B29C66/8222—Pinion or rack 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83421—Roller, cylinder or drum types; Band or belt types; Ball types band or belt types
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83541—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws flying jaws, e.g. jaws mounted on crank mechanisms or following a hand over hand movement
    • B29C66/83543—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws flying jaws, e.g. jaws mounted on crank mechanisms or following a hand over hand movement cooperating flying jaws
    • 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
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91211—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods
    • B29C66/91212—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods involving measurement means being part of the welding jaws, e.g. integrated in the welding jaws
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91231—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature of the joining tool
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91421—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/96—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
    • B29C66/961—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving a feedback loop mechanism, e.g. comparison with a desired value
    • 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
    • B65B51/306—Counter-rotating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—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
    • B65B9/2014—Tube advancing means
    • B65B9/2021—Tube advancing means combined with longitudinal welding 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
    • B65B9/207—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 advancing continuously
    • 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
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—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
    • B29C66/81411—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 characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—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 characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B29C66/81419—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 characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled and flat
    • 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
    • B29C66/81411—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 characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—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 characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81422—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 characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being convex
    • 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
    • B65B2051/105—Heat seal temperature control

Definitions

  • the present invention relates to a vertical sealing mechanism mounted on a bag making and packaging machine for sealing overlapping portions while conveying a packaging material formed in a cylindrical shape.
  • a bag making and packaging machine has existed as an apparatus for filling a bag and filling it with an article to be packaged such as snacks while manufacturing the bag.
  • a packaging material which is a sheet-like film
  • the vertical packaging mechanism is used to stack the cylindrical packaging materials.
  • the edge of this is heat-sealed (heat-welded) to form a cylindrical packaging material.
  • the tubular packaging material that will eventually become the bag is filled with the material to be packaged from the tube, and is heated across the upper end of the bag and the lower end of the subsequent bag by the horizontal sealing mechanism below the tube. After sealing, cut the center of the heat seal part (lateral seal part) with a cutter.
  • a sheet-shaped packaging material is wound around a tube to form a cylindrical shape, and the overlapping portion of the cylindrical packaging material is heated.
  • Heat sealing is performed by applying heat and pressure by contacting the heater belt.
  • a pad (receiving member) is provided on the surface facing the heater belt on the surface of the tube forming the cylindrical packaging material as an opponent for sandwiching the overlapping portion of the packaging material with the heater belt.
  • Patent Document 1 includes a heating protrusion provided on the heater block and a pair of guide rails provided on the outer surface of the filling tube, and sealing is performed by these heating protrusions and the guide rail.
  • a longitudinal sealing device is disclosed in which an overlapping portion of a packaging material, which is a portion, is elastically deformed and supported at three points, and heat sealing is performed by intensively applying heat to the overlapping portion from a heating protrusion.
  • the conventional vertical seal mechanism has the following problems.
  • An object of the present invention is to provide a vertical seal mechanism capable of suppressing the occurrence of wrinkles, poor seals, and the like in the peripheral portion of the vertical seal portion.
  • a vertical sealing mechanism is a vertical sealing mechanism that seals an overlapping portion of packaging materials while conveying the packaging material formed in a cylindrical shape, and includes a contact portion, a heating unit, And a receiving member.
  • the contact portion contacts an overlapping portion of the packaging material formed along the conveyance direction of the packaging material.
  • a heating part heats a contact part.
  • the receiving member performs vertical sealing such that the packaging material is sandwiched between the receiving member and the receiving member.
  • the contact portion, the heating portion, and the receiving member are directed on both sides of the vertical seal portion in the direction intersecting the packaging material conveyance direction, and per unit time applied from the contact portion to the packaging material. The amount of heat is reduced.
  • the packaging material is formed into a cylindrical shape while being conveyed in a predetermined direction, and a vertical seal mechanism is formed by forming a vertical seal portion at the overlapping portion to form a bag, and contact for forming the vertical seal portion.
  • the portion, the heating portion, and the receiving member are configured so as to reduce the amount of heat applied to the packaging material from the contact portion on both sides in the width direction of the vertical seal portion.
  • a temperature gradient that lowers the directional force on both sides in the width direction of the contact portion is provided so that excessive heat is not applied to the outer peripheral portion of the vertical seal portion.
  • both sides of the vertical seal portion in the direction intersecting the conveyance direction of the packaging material mean both end portions in the width direction of the vertical seal portion.
  • the contact portion that directly contacts the packaging material can be formed so that the vertical seal portion can be formed even when the packaging material is moved to the left or right when being conveyed.
  • the width is set larger than the width of the vertical seal part. For this reason, in the conventional vertical seal mechanism, heat equal to that of the vertical seal portion is contracted on both sides in the width direction of the vertical seal portion, causing wrinkles and poor seals.
  • the contact portion and the heating portion are prevented from being applied more than necessary to the periphery of the vertical seal portion.
  • the receiving member is configured.
  • a vertical seal mechanism according to a second invention is the vertical seal mechanism according to the first invention, wherein the heating portion and the receiving member have a width substantially equal to a width of the vertical seal portion formed in the packaging material. have. And the contact part has a width
  • the width of the heating portion and the receiving member is matched with the width of the vertical seal portion, and the width of the contact portion is made larger than that.
  • the contact portion is given a high amount of heat necessary for vertical sealing in a region having the same width as the heating portion, while the amount of heat gradually decreases in the regions on both sides thereof.
  • the temperature can be lowered on both sides of the contact portion that comes into contact with the packaging material, wrinkles and poor seals can be prevented from occurring around the vertical seal portion.
  • a vertical seal mechanism according to a third invention is the vertical seal mechanism according to the first invention, wherein the receiving member has a width substantially equal to the width of the vertical seal portion! /,
  • the width of the receiving member is configured to match the width of the vertical seal portion.
  • a vertical seal mechanism according to a fourth invention is the vertical seal mechanism according to the first invention, wherein the receiving member has a curved contact surface whose both sides in the width direction are separated from the contact portion. Yes.
  • a vertical seal mechanism according to a fifth invention is the vertical seal mechanism according to the first invention, wherein the contact portion is curved so as to be separated from the packaging material over a region outside the contact portion with the vertical seal portion. Has a surface.
  • a curved surface that increases the distance from the packaging material toward both sides in the width direction is formed on the contact portion that forms the vertical seal portion so as to sandwich the packaging material between the receiving member and the receiving member.
  • both sides of the vertical seal portion of the packaging material are not directly sandwiched between the contact portion and the receiving member.
  • excessive heat supply to the periphery of the vertical seal portion can be avoided, and the occurrence of wrinkles and poor seals can be prevented.
  • a vertical seal mechanism is the vertical seal mechanism according to any one of the first to fifth aspects, wherein the heating section is in the direction of conveyance of the packaging material.
  • the cross-sectional shape by the orthogonal plane is substantially T-shaped, and the convex side surface of the T-shape is arranged close to the contact portion.
  • the contact portion is heated using a heating portion having a substantially T-shaped cross section. Then, the contact portion is heated by the substantially T-shaped convex surface.
  • a vertical seal mechanism according to a seventh invention is the vertical seal mechanism according to any one of the first to sixth inventions, wherein the contact portion rotates around the heating portion. It is a belt.
  • a vertical seal mechanism according to an eighth invention is the vertical seal mechanism according to any one of the first to sixth inventions, wherein the contact portion is configured integrally with the heating portion.
  • Heat block This prevents excessive heat from being applied to the periphery of the vertical seal part from the heat block, and avoids the occurrence of defects such as wrinkles and poor seals along the vertical seal part. S can.
  • FIG. 1 is a schematic diagram showing the configuration of a bag making and packaging machine according to an embodiment of the present invention.
  • FIG. 2 is an enlarged view showing a vertical seal mechanism provided in the bag making and packaging machine of FIG.
  • FIG. 3 is a cross-sectional view taken along line A—A in FIG.
  • FIG. 4 is a side view showing the vertical sealing mechanism of FIG.
  • FIG. 5 is a front view showing the vertical sealing mechanism of FIG.
  • FIG. 6 is a front view showing the shape of a pulley provided in the vertical sealing mechanism of FIG.
  • FIG. 7 is an enlarged view showing a horizontal sealing mechanism provided in the bag making and packaging machine of FIG. 1.
  • FIG. 8 is a graph showing the temperature distribution in the width direction of the heater belt included in the vertical sealing mechanism of FIG.
  • FIG. 9 is a cross-sectional view showing a configuration of a vertical seal mechanism according to another embodiment of the present invention.
  • FIG. 10 (a) and (b) are cross-sectional views showing a cross-sectional shape of a receiving member included in a vertical seal mechanism according to still another embodiment of the present invention.
  • FIG. 11 is a cross-sectional view showing a cross-sectional shape of a heater belt and a heater block included in a vertical seal mechanism according to still another embodiment of the present invention.
  • FIG. 12 is a cross-sectional view showing a cross-sectional shape of a heater belt and a heater block included in a vertical seal mechanism according to still another embodiment of the present invention.
  • FIG. 13 is a cross-sectional view showing a cross-sectional shape of a heat block and the like included in a vertical seal mechanism according to still another embodiment of the present invention.
  • a bag making and packaging machine 1 equipped with a vertical seal mechanism 15 will be described below with reference to Figs.
  • a bag making and packaging machine 1 covers a product such as potato chips (here, potato chips) C with a thermoplastic film (wrapping material) F, and has a cylindrical shape. It is a device that manufactures a bag by sealing the vertical film F vertically and horizontally.
  • the potato chips are dropped from the weighing machine provided above the bag making and packaging machine 1 by a predetermined amount in principle.
  • the bag making and packaging machine 1 includes a bag making unit 10, a control unit 20, and a film roll holding unit (not shown).
  • the film roll holding unit holds a film roll for feeding the sheet-like film F to the former 13a of the bag making unit 10 to be described later.
  • the film roll is formed by winding a long film F.
  • the film F fed out from this film roll is kept in a specified range by a dancer roller, etc., and can prevent loosening and meandering during transportation.
  • a film remaining amount detection sensor (not shown) for detecting the remaining amount of the film F wound around the film roll is disposed in the vicinity of the film roll holding unit.
  • the bag making unit 10 includes a forming mechanism 13 for forming the film F fed in a sheet form from the film roll holding part into a tubular shape, and the tubular film F (hereinafter referred to as a tubular shape).
  • a pull-down belt mechanism 14 that conveys the film) downward
  • a vertical seal mechanism 15 that vertically seals the overlapping part of the tubular film, and the upper and lower ends of the bag B by horizontally sealing the tubular film.
  • a horizontal seal mechanism 17 for sealing the portion.
  • the forming mechanism 13 includes a tube 13b, a former 13a, and a hook-and-loop fastener (receiving member) 13c.
  • a hook-and-loop fastener 13c receives the force that explains the hook-and-loop fastener 13c as a member on the molding mechanism 13 side.
  • the force that explains the hook-and-loop fastener 13c as a member on the molding mechanism 13 side can also be considered as a member on the vertical seal mechanism 15 side described later.
  • the tube 13b is a cylindrical member and has upper and lower ends opened. Potato chips C weighed with a weighing machine are put into the opening at the upper end of the tube 13b. Further, the tube 13b is provided with a surface fastener 13c on a surface facing a heater belt 16a of a vertical seal mechanism 15 described later. Then, an overlapping portion F2 (see FIG. 3) of the film F is sandwiched between the hook-and-loop fastener 13c and the heater beret 16a to perform sealing.
  • the former 13a is disposed so as to surround the tube 13b.
  • the shape of the former 13a is such that the sheet-like film F fed from the film roll is formed into a cylindrical shape when passing between the former 13a and the tube 13b.
  • the tube 13b and the former 13a of the forming mechanism 13 can be replaced with force S according to the size of the bag to be manufactured.
  • the hook-and-loop fastener 13c is attached to the flat portion of the surface of the tube 13b facing the heater belt 16a of the vertical sheath mechanism 15 in a replaceable manner.
  • the hook-and-loop fastener 13c applies heat and pressure to the overlapping portion of the film with the heater belt 16a to perform sealing.
  • the hook-and-loop fastener 13c has elasticity in the contact direction with the film F and has a frictional resistance on the contact surface, such as Velcro (registered trademark), from the viewpoint of improving the sealing performance. It is preferable to use a small member. Further, as shown in FIG.
  • the hook-and-loop fastener 13c has a width dl substantially equal to the width d (see FIG. 2) of the vertical seal portion F1 of the film F in plan view. Form F1.
  • the overlapping portion F2 of the film F between the surface fastener 13c and the heater belt 16a which is substantially the same width as the width d of the vertical seal portion F1, is obtained.
  • the width d2 of the heater belt 16a is larger than the width d of the vertical seal portion F1, the heat treatment is applied to the vertical seal portion F1 in a concentrated manner. Can do.
  • the punolet down belt mechanism 14 is a mechanism that sucks the cylindrical film wound around the tube 13b and conveys it downward, and as shown in FIGS. 1 and 5, the tube 13b is sandwiched between the left and right sides. Belts 14c are provided on both sides. In the pull-down belt mechanism 14, the belt 14c having the suction function is rotated by the driving roller 14a and the driven roller 14b to carry the cylindrical film downward. In FIGS. 1 and 5, the illustration of the roller drive motor that rotates the drive roller 14a and the like is omitted.
  • the vertical sealing mechanism 15 is configured so that an overlapping portion F2 (see FIG. 3) of the tubular film F wound around the tube 13b is applied to the portion of the hook-and-loop fastener 13c attached to the tube 13b with a constant pressure. This is a mechanism that applies heat and pressure to form the vertical seal portion F1 (see Fig. 1 and Fig. 2) along the vertical direction (conveyance direction).
  • the vertical seal mechanism 15 is disposed on the front side of the tube 13b and connected to the control unit 20. Further, as shown in FIG. 2, the vertical seal mechanism 15 includes a heater belt (contact portion, rotating belt) 16a, a heater block (heating portion) 16b, and a pulley 16c.
  • the heater belt 16a is a metal belt having an endless shape (pasted shape) and a thickness of approximately 0.15 mm.
  • the heater belt 16a is held in a state where a substantially constant tension is maintained by two pulleys 16c arranged so as to contact the inner surface, and rotates in the longitudinal direction when the pulley 16c rotates.
  • the tubular film F conveyed at the same speed as the rotation speed of the heater belt 16a is sandwiched between the tube 13b (surface fastener 13c) and brought into contact with the overlapping portion F2 of the film F (see FIG. 3).
  • vertical sealing is performed by applying pressure and heat to the surface fastener 13c. Further, as shown in FIG.
  • the heater belt 16a has a horizontal width d2 larger than the widths dl and d3 of the hook-and-loop fastener 13c, the heater hook, and the lock 16b, which are substantially the same as the width d of the vertical seal portion F1. And then sing. For this reason, as shown in FIG. 8, the heater belt 16a that is in direct contact with the overlapping portion F2 of the Finolem F has a temperature gradient that descends from the center portion adjacent to the heater block 16b toward both sides. It is formed. As a result, heat and pressure per unit time sufficient for sealing can be applied to the vertical seal portion F1 of the film F, while a smaller amount of heat is applied to the surrounding area. Pressure can be applied.
  • the heater block 16b is a metal rectangular parallelepiped block, and includes a heater bar 16e that generates heat on the side where the heater belt 16a and the film F are in contact with each other. Yes.
  • the heater block 16b is disposed close to the inner surface side of the heater belt 16a along the longitudinal surface of the heater belt 16a, and heats the heater beret 16a to 140 to 150 ° C.
  • the back side of the heater block 16b does not contain the heater bar 16e, and the entire heater block 16b is made of metal with high thermal conductivity, so the temperature on the back side is also heated to around 130 ° C.
  • the heater block 16b has a width d3 (dl) substantially equal to the width d (see FIG. 2) of the vertical seal portion F1 of the film F in a plan view, like the surface fastener 13c. ing. Therefore, a sufficient amount of heat is applied to the sealing process from the heater block 16b to the heater belt 16a by the width d of the vertical seal portion F1.
  • the heater block 16b is not disposed close to the region, so that the amount of heat applied is greatly reduced, and the heater belt 16a A temperature gradient is formed on the surface where the temperature decreases from the center to both ends (see the graph in Fig. 8).
  • two pulleys 16c are arranged on the inner surface side of the heater belt 16a, and a rotational force from a motor (not shown) is transmitted to the rotating shaft 16f ( The heater belt 16a is rotated in the longitudinal direction by rotating around (see Fig. 6).
  • the inner surface side of the heater belt 16a is the inner surface of the endless belt supported by the pulley 16c, and the outer surface side of the heater belt 16a is in contact with the film F in the vertical direction.
  • the surface on the side to be sealed shall be shown.
  • the back side of the heater block 16b indicates the side opposite to the side on which the vertical seal with the heater bar 16e is built.
  • the horizontal seal mechanism (horizontal seal portion) 17 is disposed below the forming mechanism 13, the pull-down belt mechanism 14, and the vertical seal mechanism 15.
  • the lateral seal mechanism 17 has a pair of seal jaws 51 with a built-in heater (see FIG. 7).
  • the pair of sealing jaws 51 are located on the front side and the rear side of the tubular film, respectively, and as shown in FIG. It turns to draw a letter-shaped trajectory T. In the middle of turning, the tubular film is sandwiched with the pair of sealing jaws 51 pressed against each other, and pressure and heat are applied to the portions of the tubular film which are the upper and lower end portions of the bag to provide a seal.
  • the seal jaw 51 located on the front side of the tubular film is supported by the shaft 17c so as to rotate about the shaft 17c.
  • the shaft 17c rotates through a gear by the operation of a turning motor (not shown) and horizontally moves back and forth through a ball screw mechanism (not shown) by the operation of the shaft moving motor.
  • the seal jaw 51 located on the rear side of the tubular film also rotates through the gear by the operation of the turning motor and horizontally moves forward and backward by the operation of the shaft moving motor. In this way, the pair of seal jaws 51 rotate and move horizontally, thereby realizing the locus T of the substantially D-shaped seal jaw 51. Further, the pressure when the pair of sealing jaws 51 sandwich the cylindrical film is adjusted by torque control of the shaft moving motor.
  • a cutter (not shown) is incorporated in one of the pair of seal jaws 51. This cutter plays a role of separating the bag B and the subsequent cylindrical film at the center position in the height direction of the horizontal seal portion by the seal jaw 51.
  • the control unit 20 is connected to the vertical seal mechanism 15 and the like.
  • the heater block 16b (heater bar 16e) provided in the vertical seal mechanism 15 is connected to the heater bar 16e (heater bar 16e) according to a detection result by a temperature sensor (not shown) that detects the temperature of the heater block 16b.
  • the heater block 16b) force also adjusts the amount of heat applied to the heater belt 16a, that is, the set temperature of the heater block 16b, and controls the overall operation of the bag making and packaging machine 1.
  • the heater belt 16a and the heater block 16b constituting the vertical seal mechanism 15 and the hook-and-loop fastener 13c arranged on the molding mechanism 13 side are provided.
  • the film F is arranged so that the amount of heat per unit time applied to the outer regions of the vertical seal portion F1 of the film F is small.
  • a sufficient amount of heat and pressure for the sealing process are applied to the vertical seal portion Fl of the film F, while an unnecessarily large amount of heat is applied to both outer regions of the vertical seal portion F1. It can be prevented from being granted.
  • the amount of heat and pressure per unit time necessary for the seal treatment is also applied to the periphery of the vertical seal part F1, which causes wrinkles, etc. along the vertical seal part F1 and deteriorates the appearance of the product. Can be avoided
  • the width d of the vertical seal portion F1 A hook-and-loop fastener 13c and a heater block 16b having substantially the same widths dl and d3 and a heater benore 16a having a width d2 larger than the widths d, dl and d3 are used.
  • the hook-and-loop fastener 13c has substantially the same width as the width d of the vertical seal portion F1.
  • the film F wound around the tube 13b having a substantially circular cross section is separated from the surface of the heater belt 16a. It is not given excessively to F.
  • the width dl of the hook-and-loop fastener 13c and the width d3 of the heater block 16b are substantially the same as the width d of the vertical seal portion F1 (see FIG. 2).
  • An example in which the width d2 of the heater beret 16a is set larger than these widths d, dl, and d3 has been described.
  • the present invention is not limited to this.
  • the width dl of the hook-and-loop fastener 13c is substantially the same as the width d of the vertical seal portion F1, and the width d2 of the heater vent 16t and the width of the heater block 116b d 4 may be set larger than these widths d and dl.
  • the width dl of the hook-and-loop fastener 13c is set to be approximately the same as the width d of the vertical seal portion F1, so that the film F sandwiched between the heater belt 16a and the hook-and-loop fastener 13c
  • the width of the overlapping portion F2 is substantially equal to the width d of the vertical seal portion F1.
  • a surface 1 13ca corresponding to the contact surface side with the film is curved, and the curved surface 113ca and the heater belt 1 Sealing may be performed by sandwiching the overlapping part F2 of the film F with 6a.
  • the cross-sectional shape of the receiving member is a flat surface 213ca at the center of the curved surface 113ca of the hook-and-loop fastener 113c, and curved surfaces 213cb on both sides thereof. May be formed.
  • the region corresponding to the width of the vertical seal portion F1 can be equally applied with pressure and heat, and the amount of heat and pressure applied to the peripheral regions on both sides can be reduced. Therefore, it is possible to more effectively avoid the occurrence of a seal failure around the vertical seal portion with a simple configuration.
  • the heater block 16b disposed in the vicinity of the heater belt 16a has been described as an example using a substantially rectangular parallelepiped heating body.
  • the present invention is not limited to this.
  • a heater block 116c having a substantially T-shaped cross-section is formed, and the heater belt 16a on the side in contact with the overlapping portion F2 of the film F has a substantially T-shaped width. You can place the larger part 116ca! / ⁇ .
  • the temperature is likely to be lower at both end portions not connected to the narrower portion 116cb than in the central portion. Therefore, in the substantially T-shaped heater block 116c, it is possible to form a temperature gradient in which the temperature decreases from the central portion to both ends. As a result, it is possible to easily avoid the occurrence of wrinkles and seal defects around the vertical seal portion with a simple configuration.
  • a heater belt 16a having a curved surface 116aa as a surface in contact with the overlapping portion F2 of the film F may be used.
  • the amount of heat and pressure per unit time applied to the film F from the central portion of the curved surface 116aa can be made larger than the both end portions.
  • the central portion of the vertical seal portion so as to match the central portion of the curved surface 116aa, a sufficient amount of heat and pressure are applied to the vertical seal portion, while in the peripheral regions at both ends thereof. Can prevent a sufficient pressure from being applied.
  • the sealing process may be performed by sandwiching the sealing part with the fins! /, And the overlapping part may be simplified without forming the folded part. The part overlapped with each other may be sealed.
  • the hook-and-loop fastener is an indispensable configuration for the vertical sealing process, it can also be considered as a structure of the vertical sealing mechanism 15 side.
  • the heater belt 16a is used as the contact portion that performs heat sealing by contacting the vertical seal portion of the film F.
  • the present invention is not limited to this.
  • a heat block 216b integrated with a heating unit such as a heater is brought into contact with an intermittent operation so as to be pressed against the overlapping portion F2 of the film F, thereby causing a vertical seal. Even a vertical seal mechanism that performs.
  • the vertical seal mechanism of the present invention is capable of preventing excessive heating of both sides of the vertical seal portion, so that problems such as wrinkles and defective seals occur along the vertical seal portion. Since it has the effect of avoiding this, it can be widely applied to various sealing devices that perform sealing while transporting the packaging material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Package Closures (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Abstract

In a bag manufacturing and packaging apparatus (1), heater belts (16a) and heater block (16b) that form a vertical seal mechanism (15) and an area fastener (13c) that is disposed on a molding mechanism (13) side are arranged so that a heat quantity per unit time given to areas on both outer sides of a vertical seal portion (Fl) of the film (F) is smaller than that given to the vertical seal portion (F1).

Description

明 細 書  Specification
縦シール機構  Vertical seal mechanism
技術分野  Technical field
[0001] 本発明は、筒状に形成された包材を搬送しながら重なり部分をシールするための 製袋包装機に搭載される縦シール機構に関する。  TECHNICAL FIELD [0001] The present invention relates to a vertical sealing mechanism mounted on a bag making and packaging machine for sealing overlapping portions while conveying a packaging material formed in a cylindrical shape.
背景技術  Background art
[0002] 近年、袋を製造しながら袋の内部にスナック菓子などの被包装物を充填して製袋 包装する装置として、製袋包装機が存在している。例えば、ピロ一包装機と呼ばれる 縦型の製袋包装機では、シート状のフィルムである包材をフォーマおよびチューブに よって筒状に成形し、縦シール機構により筒状包材の重ねられた縦の縁を熱シール (熱溶着）して筒状包材とする。そして、最終的に袋となる筒状包材の内部にチュー ブから被包装物を充填して、チューブ下方の横シール機構によって袋の上端部と後 続の袋の下端部とにまたがって熱シールした後、その熱シール部分 (横シール部分） の中央をカッターで切断する。  In recent years, a bag making and packaging machine has existed as an apparatus for filling a bag and filling it with an article to be packaged such as snacks while manufacturing the bag. For example, in a vertical bag making and packaging machine called a pillow wrapping machine, a packaging material, which is a sheet-like film, is formed into a cylindrical shape by a former and a tube, and the vertical packaging mechanism is used to stack the cylindrical packaging materials. The edge of this is heat-sealed (heat-welded) to form a cylindrical packaging material. The tubular packaging material that will eventually become the bag is filled with the material to be packaged from the tube, and is heated across the upper end of the bag and the lower end of the subsequent bag by the horizontal sealing mechanism below the tube. After sealing, cut the center of the heat seal part (lateral seal part) with a cutter.
[0003] このような製袋包装機に搭載された縦シール機構では、シート状の包材をチューブ に巻きつけて筒状に成形し、筒状包材の重なり部分に対して、加熱されたヒータベル トを当接させて熱と圧力とを加えることで熱シールを行う。このとき、ヒータベルトとの 間に包材の重なり部分を挟み込む相手として、筒状包材を形成するチューブの表面 におけるヒータベルトとの対向面にパッド（受け部材）が設けられている。  [0003] In a vertical seal mechanism mounted on such a bag making and packaging machine, a sheet-shaped packaging material is wound around a tube to form a cylindrical shape, and the overlapping portion of the cylindrical packaging material is heated. Heat sealing is performed by applying heat and pressure by contacting the heater belt. At this time, a pad (receiving member) is provided on the surface facing the heater belt on the surface of the tube forming the cylindrical packaging material as an opponent for sandwiching the overlapping portion of the packaging material with the heater belt.
[0004] 例えば、特許文献 1には、ヒータブロックに設けられた発熱突条と、充填チューブの 外面に設けられた一対のガイドレールとを備え、これらの発熱突条とガイドレールとに よりシール部分である包材の重なり部分を弾性変形させて 3点支持し、発熱突条から 重なり部分に熱を集中的に付与してヒートシールする縦シール装置が開示されてい 特許文献 1 :特開 2000— 72104号公報（平成 12年 3月 7日公開）  [0004] For example, Patent Document 1 includes a heating protrusion provided on the heater block and a pair of guide rails provided on the outer surface of the filling tube, and sealing is performed by these heating protrusions and the guide rail. A longitudinal sealing device is disclosed in which an overlapping portion of a packaging material, which is a portion, is elastically deformed and supported at three points, and heat sealing is performed by intensively applying heat to the overlapping portion from a heating protrusion. — No. 72104 (published March 7, 2000)
発明の開示  Disclosure of the invention
発明が解決しょうとする課題 [0005] しかしながら、上記従来の縦シール機構では、以下に示すような問題点を有してい Problems to be solved by the invention However, the conventional vertical seal mechanism has the following problems.
[0006] すなわち、上記公報に開示された縦シール機構では、シール部分の周辺にも比較 的大きな熱量が付与されるため、シール部分だけでなくその周辺部分まで収縮して、 しわが発生してしまうおそれがある。 [0006] That is, in the vertical seal mechanism disclosed in the above publication, a relatively large amount of heat is applied to the periphery of the seal portion, so that not only the seal portion but also the peripheral portion contracts, and wrinkles are generated. There is a risk that.
[0007] 本発明の課題は、縦シール部分の周辺部分におけるしわやシール不良等の発生 を抑制することが可能な縦シール機構を提供することにある。  [0007] An object of the present invention is to provide a vertical seal mechanism capable of suppressing the occurrence of wrinkles, poor seals, and the like in the peripheral portion of the vertical seal portion.
課題を解決するための手段  Means for solving the problem
[0008] 第 1の発明に係る縦シール機構は、筒状に形成された包材を搬送しながら、包材の 重なり部分をシールする縦シール機構であって、接触部と、加熱部と、受け部材とを 備えている。接触部は、包材の搬送方向に沿って形成される包材の重なり部分に接 触する。加熱部は、接触部を加熱する。受け部材は、接触部との間に包材を挟み込 むようにして縦シールを行う。そして、接触部と加熱部と受け部材とは、包材の搬送方 向に交差する方向における縦シール部分の両側に向力、つて、接触部から包材に対 して付与される単位時間当たりの熱量が少なくなるように構成されている。  [0008] A vertical sealing mechanism according to a first invention is a vertical sealing mechanism that seals an overlapping portion of packaging materials while conveying the packaging material formed in a cylindrical shape, and includes a contact portion, a heating unit, And a receiving member. The contact portion contacts an overlapping portion of the packaging material formed along the conveyance direction of the packaging material. A heating part heats a contact part. The receiving member performs vertical sealing such that the packaging material is sandwiched between the receiving member and the receiving member. The contact portion, the heating portion, and the receiving member are directed on both sides of the vertical seal portion in the direction intersecting the packaging material conveyance direction, and per unit time applied from the contact portion to the packaging material. The amount of heat is reduced.
[0009] ここでは、包材を所定の方向に搬送しながら筒状とし、その重なり部分に縦シール 部分を形成して製袋する縦シール機構にぉレ、て、縦シール部分を形成する接触部と 加熱部と受け部材とを、縦シール部分の幅方向における両側に向力、つて接触部から 包材に対して付与される熱量が少なくなるように構成されている。具体的には、縦シ ール部分の外周部分に過度な熱が付与されないように、例えば、接触部の幅方向に おける両側に向力、つて低くなる温度勾配を設けている。  [0009] Here, the packaging material is formed into a cylindrical shape while being conveyed in a predetermined direction, and a vertical seal mechanism is formed by forming a vertical seal portion at the overlapping portion to form a bag, and contact for forming the vertical seal portion. The portion, the heating portion, and the receiving member are configured so as to reduce the amount of heat applied to the packaging material from the contact portion on both sides in the width direction of the vertical seal portion. Specifically, for example, a temperature gradient that lowers the directional force on both sides in the width direction of the contact portion is provided so that excessive heat is not applied to the outer peripheral portion of the vertical seal portion.
[0010] なお、上記包材の搬送方向に交差する方向における縦シール部分の両側とは、縦 シール部分の幅方向における両端部を意味する。  [0010] Note that both sides of the vertical seal portion in the direction intersecting the conveyance direction of the packaging material mean both end portions in the width direction of the vertical seal portion.
[0011] 通常、このような縦シール機構では、包材が搬送される際に左右にぶれた場合でも 縦シール部分を形成することができるように、包材に対して直接接触する接触部の幅 を縦シール部分の幅よりも大きく設定している。このため、従来の縦シール機構では 、縦シール部分の幅方向における両側にも縦シール部分と同等の熱が付与されて 収縮するため、しわやシール不良が発生する原因となっていた。 [0012] 本発明の縦シール機構では、接触部から包材に対して付与される熱のうち、縦シ ール部分の周辺にまで必要以上に熱が付与されないように、接触部、加熱部、受け 部材を構成している。 [0011] Normally, in such a vertical seal mechanism, the contact portion that directly contacts the packaging material can be formed so that the vertical seal portion can be formed even when the packaging material is moved to the left or right when being conveyed. The width is set larger than the width of the vertical seal part. For this reason, in the conventional vertical seal mechanism, heat equal to that of the vertical seal portion is contracted on both sides in the width direction of the vertical seal portion, causing wrinkles and poor seals. [0012] In the vertical seal mechanism of the present invention, of the heat applied from the contact portion to the packaging material, the contact portion and the heating portion are prevented from being applied more than necessary to the periphery of the vertical seal portion. The receiving member is configured.
[0013] これにより、包材における縦シールされる部分以外に付与される熱量を従来よりも 抑制して、縦シールに必要な熱量を包材における縦シール部分だけに付与すること ができる。この結果、縦シール部分の両側が過度に加熱されることを防止することが できるため、縦シール部分に沿ってしわやシール不良等の不具合が発生することを 回避すること力 Sでさる。  [0013] Thereby, it is possible to suppress the amount of heat applied to a portion other than the portion that is vertically sealed in the packaging material, and to apply the amount of heat necessary for the longitudinal seal only to the longitudinal seal portion of the packaging material. As a result, since both sides of the vertical seal portion can be prevented from being heated excessively, it is possible to avoid the occurrence of defects such as wrinkles and defective seals along the vertical seal portion with the force S.
[0014] 第 2の発明に係る縦シール機構は、第 1の発明に係る縦シール機構であって、加熱 部と受け部材とは、包材に形成される縦シール部分の幅と略等しい幅を有している。 そして、接触部は、縦シール部分の幅よりも大きい幅を有している。  [0014] A vertical seal mechanism according to a second invention is the vertical seal mechanism according to the first invention, wherein the heating portion and the receiving member have a width substantially equal to a width of the vertical seal portion formed in the packaging material. have. And the contact part has a width | variety larger than the width | variety of a vertical seal | sticker part.
[0015] ここでは、加熱部分と受け部材の幅を縦シール部分の幅と合わせ、接触部の幅を それよりぁ大さくしている。  [0015] Here, the width of the heating portion and the receiving member is matched with the width of the vertical seal portion, and the width of the contact portion is made larger than that.
[0016] これにより、接触部には、加熱部と同じ幅の領域には縦シールするために必要な高 い熱量が付与される一方、その両側の領域にかけては徐々に熱量が低くなる。この 結果、包材に対して接触する接触部の両側にかけて温度を低くすることができるため 、縦シール部分の周辺にしわやシール不良が発生することを防止することができる。  [0016] Thereby, the contact portion is given a high amount of heat necessary for vertical sealing in a region having the same width as the heating portion, while the amount of heat gradually decreases in the regions on both sides thereof. As a result, since the temperature can be lowered on both sides of the contact portion that comes into contact with the packaging material, wrinkles and poor seals can be prevented from occurring around the vertical seal portion.
[0017] 第 3の発明に係る縦シール機構は、第 1の発明に係る縦シール機構であって、受け 部材は、縦シール部分の幅と略等しレ、幅を有して!/、る。  [0017] A vertical seal mechanism according to a third invention is the vertical seal mechanism according to the first invention, wherein the receiving member has a width substantially equal to the width of the vertical seal portion! /, The
[0018] ここでは、受け部材の幅を縦シール部分の幅に合わせて構成している。  Here, the width of the receiving member is configured to match the width of the vertical seal portion.
[0019] これにより、接触部の幅が縦シール部分の幅よりも大きい場合でも、接触部と受け 部材との間には縦シール部分だけが挟み込まれて熱が付与される。このため、縦シ ール部分の外側に直接的に大きな熱が付与されることを回避することで、縦シール 部分に沿ってしわやシール不良等が発生することを防止することができる。  Thus, even when the width of the contact portion is larger than the width of the vertical seal portion, only the vertical seal portion is sandwiched between the contact portion and the receiving member, and heat is applied. For this reason, it is possible to prevent the generation of wrinkles, poor seals, and the like along the vertical seal portion by avoiding that large heat is directly applied to the outside of the vertical seal portion.
[0020] 第 4の発明に係る縦シール機構は、第 1の発明に係る縦シール機構であって、受け 部材は、幅方向における両側が接触部と離間する湾曲状の接触面を有している。  [0020] A vertical seal mechanism according to a fourth invention is the vertical seal mechanism according to the first invention, wherein the receiving member has a curved contact surface whose both sides in the width direction are separated from the contact portion. Yes.
[0021] ここでは、接触部との間に包材を挟み込んで縦シール部分を形成する受け部材に おける包材との接触面力、縦シール部分だけが接触部と受け部材との間に挟み込ま れるように湾曲状になって!/、る。 Here, the contact surface force with the packaging material in the receiving member that forms the vertical seal portion by sandwiching the packaging material between the contact portion and only the vertical seal portion is sandwiched between the contact portion and the receiving member. It becomes curved like that!
[0022] これにより、縦シール部分の両側に対して接触部から付与される熱量を抑制し、縦 シール部分を中心に熱を付与することができる。この結果、縦シール部分の周辺へ の過度な熱の供給を回避して、しわやシール不良の発生を防止することができる。 [0022] Thereby, the amount of heat applied from the contact portion to both sides of the vertical seal portion can be suppressed, and heat can be applied around the vertical seal portion. As a result, excessive heat supply to the periphery of the vertical seal portion can be avoided, and the occurrence of wrinkles and seal defects can be prevented.
[0023] 第 5の発明に係る縦シール機構は、第 1の発明に係る縦シール機構であって、接触 部は、縦シール部分との接触部分よりも外側の領域にかけて包材と離間する湾曲面 を有している。 [0023] A vertical seal mechanism according to a fifth invention is the vertical seal mechanism according to the first invention, wherein the contact portion is curved so as to be separated from the packaging material over a region outside the contact portion with the vertical seal portion. Has a surface.
[0024] ここでは、受け部材との間に包材を挟み込むようにして縦シール部分を形成する接 触部に、幅方向両側に向かって包材との距離が大きくなる湾曲面を形成している。  Here, a curved surface that increases the distance from the packaging material toward both sides in the width direction is formed on the contact portion that forms the vertical seal portion so as to sandwich the packaging material between the receiving member and the receiving member. Yes.
[0025] これにより、包材における縦シール部分の両側については、接触部と受け部材との 間に直接挟み込まれることはない。この結果、縦シール部分の周辺への過度な熱の 供給を回避して、しわやシール不良の発生を防止することができる。  [0025] Thereby, both sides of the vertical seal portion of the packaging material are not directly sandwiched between the contact portion and the receiving member. As a result, excessive heat supply to the periphery of the vertical seal portion can be avoided, and the occurrence of wrinkles and poor seals can be prevented.
[0026] 第 6の発明に係る縦シール機構は、第 1から第 5の発明のいずれ力、 1つに係る縦シ ール機構であって、加熱部は、包材の搬送方向に対して直交する平面による断面形 状が、略 T字型となっており、 T字型の凸側の面が接触部と近接配置されている。  [0026] A vertical seal mechanism according to a sixth aspect of the present invention is the vertical seal mechanism according to any one of the first to fifth aspects, wherein the heating section is in the direction of conveyance of the packaging material. The cross-sectional shape by the orthogonal plane is substantially T-shaped, and the convex side surface of the T-shape is arranged close to the contact portion.
[0027] ここでは、断面形状が略 T字型の加熱部を用いて接触部を加熱する。そして、略 T 字型の凸側の面によって接触部を加熱する。  [0027] Here, the contact portion is heated using a heating portion having a substantially T-shaped cross section. Then, the contact portion is heated by the substantially T-shaped convex surface.
[0028] これにより、略 T字型の加熱部における凸部分では、中央部分と比較して熱が放散 しゃすいため、両端に向力 て傾斜する温度勾配を設けることができる。この結果、 縦シール部分の両側に付与される熱を低減して、縦シール部分の両側に沿ってしわ やシール不良等が発生することを防止することができる。  [0028] Accordingly, since the heat is dissipated in the convex portion of the substantially T-shaped heating section as compared with the central portion, it is possible to provide a temperature gradient that is inclined toward both ends. As a result, the heat applied to both sides of the vertical seal portion can be reduced, and wrinkles and seal defects can be prevented from occurring along both sides of the vertical seal portion.
[0029] 第 7の発明に係る縦シール機構は、第 1から第 6の発明のいずれ力、 1つに係る縦シ ール機構であって、接触部は、加熱部の周りを回転する回転帯体である。  [0029] A vertical seal mechanism according to a seventh invention is the vertical seal mechanism according to any one of the first to sixth inventions, wherein the contact portion rotates around the heating portion. It is a belt.
[0030] これにより、回転帯体から縦シール部分の周辺に対して過剰な熱が付与されること を防止して、縦シール部分に沿ってしわやシール不良等の不具合が発生することを 回避すること力 Sでさる。  [0030] This prevents excessive heat from being applied to the periphery of the vertical seal portion from the rotating belt body, and avoids occurrence of problems such as wrinkles and defective seals along the vertical seal portion. The power S to do.
[0031] 第 8の発明に係る縦シール機構は、第 1から第 6の発明のいずれ力、 1つに係る縦シ ール機構であって、接触部は、加熱部と一体的に構成されるヒートブロックである これにより、ヒートブロックから縦シール部分の周辺に対して過剰な熱が付与される ことを防止して、縦シール部分に沿ってしわやシール不良等の不具合が発生するこ とを回避すること力 Sできる。 [0031] A vertical seal mechanism according to an eighth invention is the vertical seal mechanism according to any one of the first to sixth inventions, wherein the contact portion is configured integrally with the heating portion. Heat block This prevents excessive heat from being applied to the periphery of the vertical seal part from the heat block, and avoids the occurrence of defects such as wrinkles and poor seals along the vertical seal part. S can.
図面の簡単な説明  Brief Description of Drawings
[0032] [図 1]本発明の一実施形態に係る製袋包装機の構成を示す概略図。  FIG. 1 is a schematic diagram showing the configuration of a bag making and packaging machine according to an embodiment of the present invention.
[図 2]図 1の製袋包装機が備えている縦シール機構を示す拡大図。  FIG. 2 is an enlarged view showing a vertical seal mechanism provided in the bag making and packaging machine of FIG.
[図 3]図 2の A— A線矢視断面図。  FIG. 3 is a cross-sectional view taken along line A—A in FIG.
[図 4]図 2の縦シール機構を示す側面図。  4 is a side view showing the vertical sealing mechanism of FIG.
[図 5]図 2の縦シール機構を示す正面図。  FIG. 5 is a front view showing the vertical sealing mechanism of FIG.
[図 6]図 2の縦シール機構が備えているプーリの形状を示す正面図。  FIG. 6 is a front view showing the shape of a pulley provided in the vertical sealing mechanism of FIG.
[図 7]図 1の製袋包装機が備えている横シール機構を示す拡大図。  FIG. 7 is an enlarged view showing a horizontal sealing mechanism provided in the bag making and packaging machine of FIG. 1.
[図 8]図 2の縦シール機構に含まれるヒータベルトの幅方向における温度分布を示す グラフ。  FIG. 8 is a graph showing the temperature distribution in the width direction of the heater belt included in the vertical sealing mechanism of FIG.
[図 9]本発明の他の実施形態に係る縦シール機構の構成を示す断面図。  FIG. 9 is a cross-sectional view showing a configuration of a vertical seal mechanism according to another embodiment of the present invention.
[図 10] (a) , (b)は、本発明のさらに他の実施形態に係る縦シール機構に含まれる受 け部材の断面形状を示す断面図。  [FIG. 10] (a) and (b) are cross-sectional views showing a cross-sectional shape of a receiving member included in a vertical seal mechanism according to still another embodiment of the present invention.
[図 11]本発明のさらに他の実施形態に係る縦シール機構に含まれるヒータベルト、ヒ 一タブロックの断面形状を示す断面図。  FIG. 11 is a cross-sectional view showing a cross-sectional shape of a heater belt and a heater block included in a vertical seal mechanism according to still another embodiment of the present invention.
[図 12]本発明のさらに他の実施形態に係る縦シール機構に含まれるヒータベルト、ヒ 一タブロックの断面形状を示す断面図。  FIG. 12 is a cross-sectional view showing a cross-sectional shape of a heater belt and a heater block included in a vertical seal mechanism according to still another embodiment of the present invention.
[図 13]本発明のさらに他の実施形態に係る縦シール機構に含まれるヒートブロック等 の断面形状を示す断面図。  FIG. 13 is a cross-sectional view showing a cross-sectional shape of a heat block and the like included in a vertical seal mechanism according to still another embodiment of the present invention.
符号の説明  Explanation of symbols
[0033] 1 製袋包装機 [0033] 1 Bag making and packaging machine
10 製袋部  10 Bag making
13 成形機構  13 Molding mechanism
13a フォーマ  13a former
13b チューブ 13c 面ファスナー（受け部材） 13b tube 13c Surface fastener (receiving member)
14 プルダウンベルト機構  14 Pull-down belt mechanism
14a 駆動ローラ  14a Drive roller
14b 従動ローラ  14b Followed roller
14c ベノレ卜  14c Benole
15 縦シール機構  15 Vertical seal mechanism
16a ヒータベルト (接触部、回転帯体) 16a Heater belt (contact part, rotating belt)
16b ヒータブロック（加熱部） 16b Heater block (heating unit)
16c プーリ  16c pulley
16e ヒータノく一  16e Heratano Kuichi
16f 回転軸  16f rotation axis
17 横シール機構  17 Horizontal seal mechanism
20 制御部  20 Control unit
51 シーノレジョー  51 Sinorejo
113c 面ファスナー  113c hook-and-loop fastener
113ca 面  113ca face
116a ヒータベルト（接触部、回転帯体) 116a Heater belt (contact part, rotating belt)
116aa 面 116aa face
116b ヒータプ'ロック  116b Heatp lock
116c ヒータプ'ロック  116c Heatp lock
213c 面ファスナー  213c hook-and-loop fastener
213ca 面  213ca face
213cb 面  213cb surface
216a ヒートブロック（接触部）  216a Heat block (contact part)
d, dl〜d3 幅 d, dl to d3 width
F フィルム（包材）  F film (wrapping material)
Fl 縦シール部分  Fl Vertical seal part
F2 重なり部分 B 袋 F2 overlap B bag
発明を実施するための最良の形態  BEST MODE FOR CARRYING OUT THE INVENTION
[0034] 本発明の一実施形態に係る縦シール機構 15を搭載した製袋包装機 1について、 図 1〜図 8を用いて説明すれば以下の通りである。  [0034] A bag making and packaging machine 1 equipped with a vertical seal mechanism 15 according to an embodiment of the present invention will be described below with reference to Figs.
[0035] [製袋包装機 1全体の構成]  [0035] [Overall structure of bag making and packaging machine 1]
本発明の一実施形態に係る製袋包装機 1は、図 1に示すように、ポテトチップスなど の商品（ここでは、ポテトチップス） Cを熱可塑性のフィルム（包材) Fで覆い、筒状とな つたフィルム Fを縦および横にシールして袋を製造する装置である。  As shown in FIG. 1, a bag making and packaging machine 1 according to an embodiment of the present invention covers a product such as potato chips (here, potato chips) C with a thermoplastic film (wrapping material) F, and has a cylindrical shape. It is a device that manufactures a bag by sealing the vertical film F vertically and horizontally.
[0036] なお、ポテトチップスは、製袋包装機 1の上方に設けられた計量機等から、原則とし て所定量ずつ落下してくるようになっている。  [0036] It should be noted that the potato chips are dropped from the weighing machine provided above the bag making and packaging machine 1 by a predetermined amount in principle.
[0037] 製袋包装機 1は、製袋部 10と、制御部 20と、フィルムロール保持部（図示せず）と、 を備えている。  [0037] The bag making and packaging machine 1 includes a bag making unit 10, a control unit 20, and a film roll holding unit (not shown).
[0038] [フィルムロール保持部]  [0038] [Film roll holder]
フィルムロール保持部は、後述する製袋部 10のフォーマ 13aにシート状のフィルム Fを繰り出すフィルムロールを保持している。フィルムロールは、長尺のフィルム Fが巻 回されて構成されている。このフィルムロールから繰り出されるフィルム Fは、ダンサー ローラなどによって張力が所定範囲に保たれ、搬送中のゆるみや蛇行が抑えられる  The film roll holding unit holds a film roll for feeding the sheet-like film F to the former 13a of the bag making unit 10 to be described later. The film roll is formed by winding a long film F. The film F fed out from this film roll is kept in a specified range by a dancer roller, etc., and can prevent loosening and meandering during transportation.
[0039] また、フィルムロール保持部の近傍には、フィルムロールに巻かれているフィルム F の残量を検知するフィルム残量検知センサ（図示せず）が配置されて!/、る。 [0039] In addition, a film remaining amount detection sensor (not shown) for detecting the remaining amount of the film F wound around the film roll is disposed in the vicinity of the film roll holding unit.
[0040] [製袋部 10]  [0040] [bag making part 10]
製袋部 10は、図 1に示すように、フィルムロール保持部からシート状で送られてくる フィルム Fを筒状に成形する成形機構 13と、筒状となったフィルム F (以下、筒状フィ ノレムという。）を下方に搬送するプルダウンベルト機構 14と、筒状フィルムの重なり部 分を縦にシールする縦シール機構 15と、筒状フィルムを横にシールすることで袋 Bの 上下の端部を封止する横シール機構 17とを有している。  As shown in FIG. 1, the bag making unit 10 includes a forming mechanism 13 for forming the film F fed in a sheet form from the film roll holding part into a tubular shape, and the tubular film F (hereinafter referred to as a tubular shape). A pull-down belt mechanism 14 that conveys the film) downward, a vertical seal mechanism 15 that vertically seals the overlapping part of the tubular film, and the upper and lower ends of the bag B by horizontally sealing the tubular film. And a horizontal seal mechanism 17 for sealing the portion.
[0041] <成形機構 13〉  [0041] <Molding mechanism 13>
成形機構 13は、チューブ 13bと、フォーマ 13aと、面ファスナー（受け部材） 13cとを 有している。なお、ここでは、面ファスナー 13cを、成形機構 13側の部材として説明 する力 後述する縦シール機構 15側の部材として考えることもできる。 The forming mechanism 13 includes a tube 13b, a former 13a, and a hook-and-loop fastener (receiving member) 13c. Have. Here, the force that explains the hook-and-loop fastener 13c as a member on the molding mechanism 13 side can also be considered as a member on the vertical seal mechanism 15 side described later.
[0042] チューブ 13bは、円筒形状の部材であり上下端が開口している。このチューブ 13b の上端の開口部には、計量機で計量されたポテトチップス Cが投入される。また、チ ユーブ 13bは、後述する縦シール機構 15のヒータベルト 16aと対向する面に、面ファ スナー 13cを備えている。そして、この面ファスナー 13cとヒータべノレト 16aとの間にフ イルム Fの重なり部分 F2 (図 3参照）を挟み込んでシールを行う。  [0042] The tube 13b is a cylindrical member and has upper and lower ends opened. Potato chips C weighed with a weighing machine are put into the opening at the upper end of the tube 13b. Further, the tube 13b is provided with a surface fastener 13c on a surface facing a heater belt 16a of a vertical seal mechanism 15 described later. Then, an overlapping portion F2 (see FIG. 3) of the film F is sandwiched between the hook-and-loop fastener 13c and the heater beret 16a to perform sealing.
[0043] フォーマ 13aは、チューブ 13bを取り囲むように配置されている。このフォーマ 13a の形状は、フィルムロールから繰り出されてきたシート状のフィルム Fがフォーマ 13aと チューブ 13bとの間を通るときに筒状に成形されるような形状となっている。  [0043] The former 13a is disposed so as to surround the tube 13b. The shape of the former 13a is such that the sheet-like film F fed from the film roll is formed into a cylindrical shape when passing between the former 13a and the tube 13b.
[0044] また、成形機構 13のチューブ 13bやフォーマ 13aは、製造する袋の大きさに応じて 取り替えること力 Sできる。  In addition, the tube 13b and the former 13a of the forming mechanism 13 can be replaced with force S according to the size of the bag to be manufactured.
[0045] 面ファスナー 13cは、図 3〜図 5に示すように、チューブ 13bの表面における縦シー ノレ機構 15のヒータベルト 16aと対向する平らな部分に交換可能な状態で取付けられ ている。面ファスナー 13cは、ヒータベルト 16aとの間でフィルムの重なり部分に熱と 圧力を加えてシールを行う。なお、この面ファスナー 13cとしては、シール性向上の観 点から、例えば、マジックテープ (登録商標）等のように、フィルム Fとの接触方向に弹 性を有し、かつ接触面における摩擦抵抗が小さい部材を用いることが好ましい。また 、面ファスナー 13cは、図 3に示すように、平面視においてフィルム Fの縦シール部分 F1の幅 d (図 2参照）とほぼ等しい幅 dlを有しており、この幅内において縦シール部 分 F1を形成する。これにより、フィルム Fに縦シール部分 F1を形成する際には、縦シ ール部分 F1の幅 dとほぼ同じ幅である面ファスナー 13cとヒータベルト 16aとの間にフ イルム Fの重なり部分 F2を挟み込んでシール処理を行うことで、ヒータベルト 16aの幅 d2が縦シール部分 F1の幅 dよりも大きい場合でも、縦シール部分 F1に対して集中 的に熱量を付与してシール処理を行うことができる。  [0045] As shown in FIGS. 3 to 5, the hook-and-loop fastener 13c is attached to the flat portion of the surface of the tube 13b facing the heater belt 16a of the vertical sheath mechanism 15 in a replaceable manner. The hook-and-loop fastener 13c applies heat and pressure to the overlapping portion of the film with the heater belt 16a to perform sealing. The hook-and-loop fastener 13c has elasticity in the contact direction with the film F and has a frictional resistance on the contact surface, such as Velcro (registered trademark), from the viewpoint of improving the sealing performance. It is preferable to use a small member. Further, as shown in FIG. 3, the hook-and-loop fastener 13c has a width dl substantially equal to the width d (see FIG. 2) of the vertical seal portion F1 of the film F in plan view. Form F1. As a result, when the vertical seal portion F1 is formed on the film F, the overlapping portion F2 of the film F between the surface fastener 13c and the heater belt 16a, which is substantially the same width as the width d of the vertical seal portion F1, is obtained. When the width d2 of the heater belt 16a is larger than the width d of the vertical seal portion F1, the heat treatment is applied to the vertical seal portion F1 in a concentrated manner. Can do.
[0046] <プルダウンベルト機構 14〉  [0046] <Pull-down belt mechanism 14>
プノレダウンベルト機構 14は、チューブ 13bに巻き付いた筒状フィルムを吸着して下 方に搬送する機構であり、図 1および図 5に示すように、チューブ 13bを挟んで左右 両側にそれぞれベルト 14cが設けられている。プルダウンベルト機構 14では、吸着機 能を有するベルト 14cを駆動ローラ 14aおよび従動ローラ 14bによって回して筒状フ イルムを下方に運ぶ。なお、図 1および図 5においては、駆動ローラ 14a等を回転させ るローラ駆動モータの図示を省略してレ、る。 The punolet down belt mechanism 14 is a mechanism that sucks the cylindrical film wound around the tube 13b and conveys it downward, and as shown in FIGS. 1 and 5, the tube 13b is sandwiched between the left and right sides. Belts 14c are provided on both sides. In the pull-down belt mechanism 14, the belt 14c having the suction function is rotated by the driving roller 14a and the driven roller 14b to carry the cylindrical film downward. In FIGS. 1 and 5, the illustration of the roller drive motor that rotates the drive roller 14a and the like is omitted.
[0047] <縦シール機構 15〉  [0047] <Vertical seal mechanism 15>
縦シール機構 15は、図 1に示すように、チューブ 13bに巻き付いた筒状フィルム F の重なり部分 F2 (図 3参照）を、チューブ 13bに取り付けられた面ファスナー 13cの部 分に一定の圧力で押しつけて熱と圧力とを加えて縦方向（搬送方向）に沿って縦シ ール部分 F1 (図 1および図 2参照）を形成する機構である。また、この縦シール機構 1 5は、チューブ 13bの正面側に配置されており、制御部 20と接続されている。また、 縦シール機構 15は、図 2に示すように、ヒータベルト（接触部、回転帯体） 16a、ヒータ ブロック（加熱部） 16b、プーリ 16cを有して!/、る。  As shown in FIG. 1, the vertical sealing mechanism 15 is configured so that an overlapping portion F2 (see FIG. 3) of the tubular film F wound around the tube 13b is applied to the portion of the hook-and-loop fastener 13c attached to the tube 13b with a constant pressure. This is a mechanism that applies heat and pressure to form the vertical seal portion F1 (see Fig. 1 and Fig. 2) along the vertical direction (conveyance direction). The vertical seal mechanism 15 is disposed on the front side of the tube 13b and connected to the control unit 20. Further, as shown in FIG. 2, the vertical seal mechanism 15 includes a heater belt (contact portion, rotating belt) 16a, a heater block (heating portion) 16b, and a pulley 16c.
[0048] ヒータベルト 16aは、図 2に示すように、無端状 (たすき形状）に形成された、厚さ約 0. 15mmの金属製のベルトである。ヒータベルト 16aは、内面に当接するように配置 された 2つのプーリ 16cによってほぼ一定のテンションを維持した状態で保持されて おり、プーリ 16cが回転すると長手方向に回転する。そして、ヒータベルト 16aの回転 速度とほぼ同じ速度で搬送される筒状のフィルム Fをチューブ 13b (面ファスナー 13c )との間に挟みこむようにしてフィルム Fの重なり部分 F2 (図 3参照）に接触し、面ファ スナー 13cとの間において圧力と熱とを付加して縦シールを行う。また、ヒータベルト 16aは、図 3に示すように、縦シール部分 F1の幅 dとほぼ同じ幅である面ファスナー 1 3c、ヒータフ、、ロック 16bの幅 dl , d3よりも大きレヽ幅 d2を有してレヽる。このため、フイノレム Fの重なり部分 F2に対して直接接触するヒータベルト 16aには、図 8に示すように、ヒ 一タブロック 16bと近接配置された中心部分から両側に向かって下降する温度勾配 が形成される。これにより、フィルム Fの縦シール部分 F1に対してはシールを行うため に十分な単位時間当たりの熱量と圧力とを付与することができる一方、その周辺の領 域についてはそれよりも小さい熱量、圧力を付与することができる。この結果、フィノレ ム Fにおける縦シール部分 F1の周辺に、ヒータベルト 16aとの接触によって過度に単 位時間当たりの熱量が付与されることを回避して、縦シール部分 F1に沿ってしわや シール不良が発生することを防止することができる。 [0048] As shown in Fig. 2, the heater belt 16a is a metal belt having an endless shape (pasted shape) and a thickness of approximately 0.15 mm. The heater belt 16a is held in a state where a substantially constant tension is maintained by two pulleys 16c arranged so as to contact the inner surface, and rotates in the longitudinal direction when the pulley 16c rotates. Then, the tubular film F conveyed at the same speed as the rotation speed of the heater belt 16a is sandwiched between the tube 13b (surface fastener 13c) and brought into contact with the overlapping portion F2 of the film F (see FIG. 3). Then, vertical sealing is performed by applying pressure and heat to the surface fastener 13c. Further, as shown in FIG. 3, the heater belt 16a has a horizontal width d2 larger than the widths dl and d3 of the hook-and-loop fastener 13c, the heater hook, and the lock 16b, which are substantially the same as the width d of the vertical seal portion F1. And then sing. For this reason, as shown in FIG. 8, the heater belt 16a that is in direct contact with the overlapping portion F2 of the Finolem F has a temperature gradient that descends from the center portion adjacent to the heater block 16b toward both sides. It is formed. As a result, heat and pressure per unit time sufficient for sealing can be applied to the vertical seal portion F1 of the film F, while a smaller amount of heat is applied to the surrounding area. Pressure can be applied. As a result, an excessive amount of heat per unit time is not applied to the periphery of the vertical seal portion F1 in the finoleum F due to contact with the heater belt 16a, and wrinkles along the vertical seal portion F1. It is possible to prevent a sealing failure from occurring.
[0049] ヒータブロック 16bは、図 2〜図 4に示すように、金属製の直方体形状のブロックであ つて、ヒータベルト 16aとフィルム Fとが接触する側に、発熱するヒータバー 16eを内蔵 している。そして、ヒータブロック 16bは、ヒータベルト 16aの長手方向の面に沿ってヒ ータベルト 16aの内面側に近接配置されており、ヒータべノレト 16aを 140〜； 150°Cま で加熱する。なお、ヒータブロック 16bの裏面側にはヒータバー 16eを内蔵していない 力 S、ヒータブロック 16b全体が熱伝導率の高い金属で構成されているため、裏面側の 温度も 130°C前後まで加熱される。また、ヒータブロック 16bは、図 3に示すように、面 ファスナー 13cと同様に、平面視においてフィルム Fの縦シール部分 F1の幅 d (図 2 参照）とほぼ等しい幅 d3 ( dl)を有している。このため、ヒータブロック 16bからヒー タベルト 16aに対しては、縦シール部分 F1の幅 dの幅分だけはシール処理に十分な 熱量が付与される。一方、ヒータベルト 16aにおける縦シール部分 F1の幅 dよりも外 側の領域については、ヒータブロック 16bが近接して配置されていないため、付与さ れる熱量としては大幅に少なくなり、ヒータベルト 16aの表面には、中心から両端にか けて温度が低くなる温度勾配が形成される（図 8のグラフ参照）。  [0049] As shown in Figs. 2 to 4, the heater block 16b is a metal rectangular parallelepiped block, and includes a heater bar 16e that generates heat on the side where the heater belt 16a and the film F are in contact with each other. Yes. The heater block 16b is disposed close to the inner surface side of the heater belt 16a along the longitudinal surface of the heater belt 16a, and heats the heater beret 16a to 140 to 150 ° C. Note that the back side of the heater block 16b does not contain the heater bar 16e, and the entire heater block 16b is made of metal with high thermal conductivity, so the temperature on the back side is also heated to around 130 ° C. The Further, as shown in FIG. 3, the heater block 16b has a width d3 (dl) substantially equal to the width d (see FIG. 2) of the vertical seal portion F1 of the film F in a plan view, like the surface fastener 13c. ing. Therefore, a sufficient amount of heat is applied to the sealing process from the heater block 16b to the heater belt 16a by the width d of the vertical seal portion F1. On the other hand, in the region outside the width d of the vertical seal portion F1 in the heater belt 16a, the heater block 16b is not disposed close to the region, so that the amount of heat applied is greatly reduced, and the heater belt 16a A temperature gradient is formed on the surface where the temperature decreases from the center to both ends (see the graph in Fig. 8).
[0050] プーリ 16cは、図 2および図 4に示すように、ヒータベルト 16aの内面側に 2つ配置さ れており、モータ（図示せず)からの回転力が伝達されて回転軸 16f (図 6参照）を中 心に回転することでヒータベルト 16aを長手方向に回転させる。  [0050] As shown in FIGS. 2 and 4, two pulleys 16c are arranged on the inner surface side of the heater belt 16a, and a rotational force from a motor (not shown) is transmitted to the rotating shaft 16f ( The heater belt 16a is rotated in the longitudinal direction by rotating around (see Fig. 6).
[0051] なお、ヒータべノレト 16aにおける内面側とは、プーリ 16cによって支持されている無 端状ベルトの内側の面であり、ヒータベルト 16aにおける外面側とは、フィルム Fに接 触して縦シールを行う側の面を示すものとする。また、ヒータブロック 16bにおける裏 面側とは、ヒータバー 16eが内蔵されている縦シールを行う側とは反対側を示すもの とする。  [0051] Note that the inner surface side of the heater belt 16a is the inner surface of the endless belt supported by the pulley 16c, and the outer surface side of the heater belt 16a is in contact with the film F in the vertical direction. The surface on the side to be sealed shall be shown. In addition, the back side of the heater block 16b indicates the side opposite to the side on which the vertical seal with the heater bar 16e is built.
[0052] <横シール機構 17〉  [0052] <Horizontal seal mechanism 17>
横シール機構（横シール部） 17は、成形機構 13、プルダウンベルト機構 14および 縦シール機構 15の下方に配置されている。横シール機構 17は、ヒータを内蔵する一 対のシールジョー 51を有している（図 7参照）。一対のシールジョー 51は、それぞれ、 筒状フィルムの前側および後側に位置しており、図 7に示すように、前後対称の略 D 字状の軌跡 Tを描くように旋回する。そして、旋回の途中で、一対のシールジョー 51 が互いに押しつけ合う状態で筒状フィルムを挟持し、袋の上下の端部となる筒状フィ ルムの部分に圧力および熱を加えてシールを施す。筒状フィルムの前側に位置する シールジョー 51は、軸 17cを中心に回転するように軸 17cに支持されている。この軸 17cは、図示しない旋回用モータの作動によってギヤを介して回転するとともに、軸 移動用モータの作動によってボールねじ機構（図示せず）を介して前後に水平移動 する。また、同様に、筒状フィルムの後側に位置するシールジョー 51も、旋回用モー タの作動によってギヤを介して回転するとともに、軸移動用モータの作動によって前 後に水平移動する。このように、一対のシールジョー 51が回転するとともに水平移動 することによって、略 D字状のシールジョー 51の軌跡 Tが実現されている。また、軸移 動用モータのトルク制御によって、一対のシールジョー 51が筒状フィルムを挟み込む ときの圧力が調整される。 The horizontal seal mechanism (horizontal seal portion) 17 is disposed below the forming mechanism 13, the pull-down belt mechanism 14, and the vertical seal mechanism 15. The lateral seal mechanism 17 has a pair of seal jaws 51 with a built-in heater (see FIG. 7). The pair of sealing jaws 51 are located on the front side and the rear side of the tubular film, respectively, and as shown in FIG. It turns to draw a letter-shaped trajectory T. In the middle of turning, the tubular film is sandwiched with the pair of sealing jaws 51 pressed against each other, and pressure and heat are applied to the portions of the tubular film which are the upper and lower end portions of the bag to provide a seal. The seal jaw 51 located on the front side of the tubular film is supported by the shaft 17c so as to rotate about the shaft 17c. The shaft 17c rotates through a gear by the operation of a turning motor (not shown) and horizontally moves back and forth through a ball screw mechanism (not shown) by the operation of the shaft moving motor. Similarly, the seal jaw 51 located on the rear side of the tubular film also rotates through the gear by the operation of the turning motor and horizontally moves forward and backward by the operation of the shaft moving motor. In this way, the pair of seal jaws 51 rotate and move horizontally, thereby realizing the locus T of the substantially D-shaped seal jaw 51. Further, the pressure when the pair of sealing jaws 51 sandwich the cylindrical film is adjusted by torque control of the shaft moving motor.
[0053] また、一対のシールジョー 51の片方の内部には、図示しないカッターが内蔵されて いる。このカッターは、シールジョー 51による横シール部分の高さ方向の中心位置に おいて、袋 Bと後続の筒状フィルムとを切り離す役割を果たす。  [0053] Further, a cutter (not shown) is incorporated in one of the pair of seal jaws 51. This cutter plays a role of separating the bag B and the subsequent cylindrical film at the center position in the height direction of the horizontal seal portion by the seal jaw 51.
[0054] <制御部 20〉  <Control unit 20>
制御部 20は、図 1に示すように、縦シール機構 15等に接続されている。そして、縦 シール機構 15が備えているヒータブロック 16b (ヒータバー 16e)に接続されており、ヒ 一タブロック 16bの温度を検知する温度センサ（図示せず）による検知結果に応じて 、ヒータバー 16e (ヒータブロック 16b)力もヒータベルト 16aに対して付与される熱量、 つまりヒータブロック 16bの設定温度を調整するとともに、製袋包装機 1全体の動作を 制御する。  As shown in FIG. 1, the control unit 20 is connected to the vertical seal mechanism 15 and the like. The heater block 16b (heater bar 16e) provided in the vertical seal mechanism 15 is connected to the heater bar 16e (heater bar 16e) according to a detection result by a temperature sensor (not shown) that detects the temperature of the heater block 16b. The heater block 16b) force also adjusts the amount of heat applied to the heater belt 16a, that is, the set temperature of the heater block 16b, and controls the overall operation of the bag making and packaging machine 1.
[0055] [本製袋包装機 1の特徴]  [0055] [Features of this bag making and packaging machine 1]
(1)  (1)
本実施形態の製袋包装機 1では、図 3等に示すように、縦シール機構 15を構成す るヒータベルト 16a、ヒータブロック 16bと、成形機構 13側に配置された面ファスナー 1 3cとを、フィルム Fの縦シール部分 F1よりも両外側の領域へ付与される単位時間当 たりの熱量が小さくなるように、配置している。 [0056] これにより、フィルム Fの縦シール部分 Flに対してはシール処理に十分な熱量と圧 力とが付与される一方、縦シール部分 F1の両外側の領域については必要以上の熱 量が付与されないようにすることができる。この結果、縦シール部分 F1の周辺にもシ ール処理に必要な単位時間当たりの熱量、圧力が付与されることにより縦シール部 分 F1に沿ってしわ等が発生して商品の外観を悪化させることを回避することができる In the bag making and packaging machine 1 of the present embodiment, as shown in FIG. 3 and the like, the heater belt 16a and the heater block 16b constituting the vertical seal mechanism 15 and the hook-and-loop fastener 13c arranged on the molding mechanism 13 side are provided. The film F is arranged so that the amount of heat per unit time applied to the outer regions of the vertical seal portion F1 of the film F is small. [0056] As a result, a sufficient amount of heat and pressure for the sealing process are applied to the vertical seal portion Fl of the film F, while an unnecessarily large amount of heat is applied to both outer regions of the vertical seal portion F1. It can be prevented from being granted. As a result, the amount of heat and pressure per unit time necessary for the seal treatment is also applied to the periphery of the vertical seal part F1, which causes wrinkles, etc. along the vertical seal part F1 and deteriorates the appearance of the product. Can be avoided
[0057] (2) [0057] (2)
本実施形態の製袋包装機 1では、図 3に示すように、フィルム Fの縦シール部分 F1 に熱量と圧力とを付与してシール処理を行う構成部材として、縦シール部分 F1の幅 dとほぼ同等の幅 dl , d3を有する面ファスナー 13cおよびヒータブロック 16bと、それ らの幅 d, dl , d3よりも大きい幅 d2を有するヒータべノレト 16aとを用いている。  In the bag making and packaging machine 1 of the present embodiment, as shown in FIG. 3, as a constituent member for applying heat and pressure to the vertical seal portion F1 of the film F to perform a sealing process, the width d of the vertical seal portion F1 A hook-and-loop fastener 13c and a heater block 16b having substantially the same widths dl and d3 and a heater benore 16a having a width d2 larger than the widths d, dl and d3 are used.
[0058] これにより、面ファスナー 13cとヒータベルト 16aとの間に挟み込まれるフィルム Fの 縦シール部分 F1には、面ファスナー 13cの幅 dlの領域に大きな熱量と圧力とが付 与される。一方、その両外側の領域は、面ファスナー 13cよりも幅が広いヒータベルト 16aとは接触するものの、ヒータベルト 16aには幅方向に図 8に示すような温度勾配 が形成され、挟み込む相手方の面ファスナー 13cが存在していないため、シール処 理を行うために必要な熱量、圧力は付与されない。特に、面ファスナー 13cよりも両 外側の領域では、断面形状が略円形のチューブ 13bに巻き掛けられたフィルム Fがヒ ータベルト 16aの表面から離間していくため、熱量、圧力ともにフィルム Fに対して過 剰に付与されることはない。  [0058] Thus, a large amount of heat and pressure are applied to the width dl region of the surface fastener 13c on the vertical seal portion F1 of the film F sandwiched between the surface fastener 13c and the heater belt 16a. On the other hand, the outer regions are in contact with the heater belt 16a, which is wider than the hook-and-loop fastener 13c, but the heater belt 16a has a temperature gradient as shown in FIG. Since the fastener 13c does not exist, the amount of heat and pressure necessary to perform the sealing process are not applied. In particular, in the regions on both outer sides of the hook-and-loop fastener 13c, the film F wound around the tube 13b having a substantially circular cross-sectional shape moves away from the surface of the heater belt 16a. It will not be granted in excess.
[0059] この結果、縦シール部分 F1の両外側においてヒータベルト 16aから過剰な熱量、 圧力が付与されて、縦シール部分 F1に沿ってしわやシール不良が発生することを防 止して、商品の外観性が悪化してしまうことを回避することができる。  [0059] As a result, an excessive amount of heat and pressure is applied from the heater belt 16a on both outer sides of the vertical seal portion F1, thereby preventing wrinkles and poor seals from occurring along the vertical seal portion F1. It can avoid that the external appearance property of deteriorates.
[0060] (3)  [0060] (3)
本実施形態の製袋包装機 1では、図 3に示すように、面ファスナー 13cが、縦シー ル部分 F1の幅 dとほぼ同じ幅を有している。  In the bag making and packaging machine 1 of the present embodiment, as shown in FIG. 3, the hook-and-loop fastener 13c has substantially the same width as the width d of the vertical seal portion F1.
[0061] これにより、縦シール部分 F1の両外側の領域では、ヒータベルト 16aに対向する面 ファスナー 13cが存在していないため、ヒータベルト 16aからフィルム Fに対して付与 される単位時間当たりの熱量および圧力は、縦シール部分 Flの領域と比較して大 幅に小さくなる。 [0061] As a result, in the regions on both outer sides of the vertical seal portion F1, there is no surface fastener 13c facing the heater belt 16a, so that the film F is applied from the heater belt 16a. The amount of heat and pressure per unit time are greatly reduced compared to the region of the vertical seal portion Fl.
[0062] 特に、面ファスナー 13cよりも両外側の領域では、断面形状が略円形のチューブ 1 3bに巻き掛けられたフィルム Fがヒータベルト 16aの表面から離間していくため、熱量 、圧力ともにフィルム Fに対して過剰に付与されることはない。  [0062] In particular, in the regions on both outer sides of the hook-and-loop fastener 13c, the film F wound around the tube 13b having a substantially circular cross section is separated from the surface of the heater belt 16a. It is not given excessively to F.
[0063] この結果、縦シール部分 F1の両外側においてヒータベルト 16aからシール処理を 行う際に付与される熱量、圧力と同等の熱量、圧力が付与されて、縦シール部分 F1 に沿ってしわやシール不良が発生することを防止して、商品の外観性が悪化してしま うことを回避すること力 Sでさる。  [0063] As a result, the amount of heat applied when the sealing process is performed from the heater belt 16a on both outer sides of the vertical seal portion F1, and the amount of heat and pressure equivalent to the pressure are applied. Use force S to prevent the occurrence of poor sealing and to avoid deterioration of the appearance of the product.
[0064] [他の実施形態]  [0064] [Other Embodiments]
以上、本発明の一実施形態について説明したが、本発明は上記実施形態に限定 されるものではなぐ発明の要旨を逸脱しない範囲で種々の変更が可能である。  Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the invention.
[0065] (A)  [0065] (A)
上記実施形態では、図 3に示すように、縦シール部分 F1の幅 d (図 2参照）に対して 、面ファスナー 13cの幅 dlとヒータブロック 16bの幅 d3とをほぼ同程度の幅とし、ヒー タべノレト 16aの幅 d2を、これらの幅 d, dl , d3よりも大きく設定した例を挙げて説明し た。しかし、本発明はこれに限定されるものではない。  In the above embodiment, as shown in FIG. 3, the width dl of the hook-and-loop fastener 13c and the width d3 of the heater block 16b are substantially the same as the width d of the vertical seal portion F1 (see FIG. 2). An example in which the width d2 of the heater beret 16a is set larger than these widths d, dl, and d3 has been described. However, the present invention is not limited to this.
[0066] 例えば、図 9に示すように、縦シール部分 F1の幅 dに対して、面ファスナー 13cの幅 dlをほぼ同程度の幅とし、ヒータべノレト 16aの幅 d2およびヒータブロック 116bの幅 d 4を、これらの幅 d, dlよりも大きく設定してもよい。  [0066] For example, as shown in FIG. 9, the width dl of the hook-and-loop fastener 13c is substantially the same as the width d of the vertical seal portion F1, and the width d2 of the heater vent 16t and the width of the heater block 116b d 4 may be set larger than these widths d and dl.
[0067] この場合でも、面ファスナー 13cの幅 dlについては、縦シール部分 F1の幅 dと同程 度に設定されているため、ヒータベルト 16aと面ファスナー 13cとの間に挟み込まれる フィルム Fの重なり部分 F2の幅は、縦シール部分 F1の幅 dとほぼ同等となる。この結 果、ヒータベルト 16aからは縦シール部分 F1に相当する部分に局所的に熱量が付与 されることになるため、縦シール部分の周辺にしわやシール不良等の不具合が発生 することを回避すること力 Sできるという、上記と同様の ¾]果を得ること力 Sできる。  [0067] Even in this case, the width dl of the hook-and-loop fastener 13c is set to be approximately the same as the width d of the vertical seal portion F1, so that the film F sandwiched between the heater belt 16a and the hook-and-loop fastener 13c The width of the overlapping portion F2 is substantially equal to the width d of the vertical seal portion F1. As a result, since heat is locally applied from the heater belt 16a to the portion corresponding to the vertical seal portion F1, it is possible to avoid problems such as wrinkles and defective seals around the vertical seal portion. Similar to the above, ¾] the ability to obtain fruit S.
[0068] ただし、ヒータベルト 16aの表面温度に上述した温度勾配を形成することで、縦シー ル部分 F1以外へ過剰に単位時間当たりの熱量が付与されることを回避できるという 点では、上記実施形態のように、ヒータブロックの幅 d3を縦シール部分 F1の幅 dと同 程度に設定することがより好ましい。 [0068] However, by forming the above-described temperature gradient in the surface temperature of the heater belt 16a, it can be avoided that an excessive amount of heat per unit time is applied to portions other than the vertical seal portion F1. In terms of this point, it is more preferable to set the width d3 of the heater block to the same level as the width d of the vertical seal portion F1, as in the above embodiment.
[0069] (B) [0069] (B)
上記実施形態では、ヒータベルト 16aとの間にフィルム Fの重なり部分 F2を挟み込 んでシール処理を行う受け部材として、フィルム Fとの接触面が平らな面ファスナー 1 3cを用いた例を挙げて説明した。しかし、本発明はこれに限定されるものではない。  In the above embodiment, an example in which a hook-and-loop fastener 13c having a flat contact surface with the film F is used as a receiving member that performs the sealing process by sandwiching the overlapping portion F2 of the film F with the heater belt 16a. explained. However, the present invention is not limited to this.
[0070] 例えば、図 10 (a)に示すように、面ファスナー 113cの断面形状として、フィルムとの 接触面側に相当する面 1 13caを湾曲状とし、この湾曲状の面 113caとヒータベルト 1 6aとの間にフィルム Fの重なり部分 F2を挟み込むようにしてシール処理を行ってもよ い。 [0070] For example, as shown in FIG. 10 (a), as the cross-sectional shape of the hook-and-loop fastener 113c, a surface 1 13ca corresponding to the contact surface side with the film is curved, and the curved surface 113ca and the heater belt 1 Sealing may be performed by sandwiching the overlapping part F2 of the film F with 6a.
[0071] この場合には、縦シール部分 F1の幅 dに相当する中央部分付近についてはフィノレ ム Fに対して十分な単位時間当たりの熱量と圧力とを付与するとともに、縦シール部 分 F1の外側の領域については付与される圧力を小さくすることができる。この結果、 対向するヒータベルトやヒータブロックの幅に関わらず、面ファスナー 113c側の形状 によって、フィルム Fにおける縦シール部分 F1の周辺領域への過度な熱量や圧力の 付与を回避することができるため、簡易な構成により縦シール部分周辺におけるしわ やシール不良の発生を容易に回避することができる。  [0071] In this case, in the vicinity of the central portion corresponding to the width d of the vertical seal portion F1, a sufficient amount of heat and pressure per unit time are applied to the finole F, and the vertical seal portion F1 For the outer region, the applied pressure can be reduced. As a result, regardless of the width of the opposing heater belt or heater block, the shape on the side of the hook-and-loop fastener 113c can avoid applying an excessive amount of heat or pressure to the peripheral area of the vertical seal portion F1 in the film F. In addition, wrinkles and seal defects around the vertical seal portion can be easily avoided with a simple configuration.
[0072] さらに、受け部材の断面形状としては、図 10 (b)に示すように、面ファスナー 113c の湾曲状の面 113caにおける中央部分を平らな面 213caとし、その両側に湾曲状の 面 213cbを形成してもよい。  [0072] Further, as shown in FIG. 10 (b), the cross-sectional shape of the receiving member is a flat surface 213ca at the center of the curved surface 113ca of the hook-and-loop fastener 113c, and curved surfaces 213cb on both sides thereof. May be formed.
[0073] この場合には、縦シール部分 F1に相当する幅の領域には圧力と熱量とを均等に付 与するとともに、その両側の周辺領域に付与される熱量、圧力を小さくすることができ るため、さらに効果的に、簡易な構成によって縦シール部分周辺におけるしわゃシー ル不良の発生を容易に回避することができる。  [0073] In this case, the region corresponding to the width of the vertical seal portion F1 can be equally applied with pressure and heat, and the amount of heat and pressure applied to the peripheral regions on both sides can be reduced. Therefore, it is possible to more effectively avoid the occurrence of a seal failure around the vertical seal portion with a simple configuration.
[0074] (C)  [0074] (C)
上記実施形態では、ヒータベルト 16aに近接配置されたヒータブロック 16bとして、 略直方体の加熱体を用いた例を挙げて説明した。しかし、本発明はこれに限定され るものではない。 [0075] 例えば、図 11に示すように、断面形状が略 T字型のヒータブロック 116cとし、フィル ム Fの重なり部分 F2と接触する側のヒータベルト 16aに対して、略 T字型の幅が広い 方の部分 116caを配置してもよ!/ヽ。 In the above embodiment, the heater block 16b disposed in the vicinity of the heater belt 16a has been described as an example using a substantially rectangular parallelepiped heating body. However, the present invention is not limited to this. [0075] For example, as shown in FIG. 11, a heater block 116c having a substantially T-shaped cross-section is formed, and the heater belt 16a on the side in contact with the overlapping portion F2 of the film F has a substantially T-shaped width. You can place the larger part 116ca! / ヽ.
[0076] この場合には、幅が広い方の部分 116caでは、幅が狭い側の部分 116cbにつなが つていない両端部が中央部と比較して温度が低くなり易い。このため、略 T字型のヒ 一タブロック 116cにおいて、中央部分から両端にかけて温度が低くなる温度勾配を 形成すること力できる。この結果、簡易な構成により、縦シール部分の周辺におけるし わやシール不良等の発生を容易に回避することができる。  [0076] In this case, in the wider portion 116ca, the temperature is likely to be lower at both end portions not connected to the narrower portion 116cb than in the central portion. Therefore, in the substantially T-shaped heater block 116c, it is possible to form a temperature gradient in which the temperature decreases from the central portion to both ends. As a result, it is possible to easily avoid the occurrence of wrinkles and seal defects around the vertical seal portion with a simple configuration.
[0077] (D)  [0077] (D)
上記実施形態では、受け部材としての面ファスナー 13cとの間にフィルム Fの重なり 部分 F2を挟み込んでシール処理を行うヒータベルト 16aとして、フィルム Fとの接触面 が平らなものを用いた例を挙げて説明した。しかし、本発明はこれに限定されるもの ではない。  In the above embodiment, an example in which the contact surface with the film F is flat is used as the heater belt 16a that performs the sealing process by sandwiching the overlapping portion F2 of the film F with the surface fastener 13c as the receiving member. Explained. However, the present invention is not limited to this.
[0078] 例えば、図 12に示すように、フィルム Fの重なり部分 F2と接触する側の面を湾曲状 の面 116aaとしたヒータベルト 16aを用いてもよ!/、。  For example, as shown in FIG. 12, a heater belt 16a having a curved surface 116aa as a surface in contact with the overlapping portion F2 of the film F may be used.
[0079] この場合には、フィルム Fに対して湾曲状の面 116aaの中央部分から付与される単 位時間当たりの熱量と圧力とを、その両端部分よりも大きくすることができる。この結 果、縦シール部分の中心部分を湾曲状の面 116aaの中心部分に合わせて配置する ことで、縦シール部分へは十分な熱量と圧力とが付与される一方、その両端の周辺 領域には十分な圧力が付与されないようにすることができる。  [0079] In this case, the amount of heat and pressure per unit time applied to the film F from the central portion of the curved surface 116aa can be made larger than the both end portions. As a result, by arranging the central portion of the vertical seal portion so as to match the central portion of the curved surface 116aa, a sufficient amount of heat and pressure are applied to the vertical seal portion, while in the peripheral regions at both ends thereof. Can prevent a sufficient pressure from being applied.
[0080] さらに、図 10 (b)の面ファスナー 213cと同様に、湾曲面の中央部付近に平らな面 を形成したヒータベルト 16aを用いることも可能である。  [0080] Further, similarly to the surface fastener 213c of Fig. 10 (b), it is also possible to use a heater belt 16a having a flat surface near the center of the curved surface.
[0081] (E)  [0081] (E)
上記実施形態では、面ファスナー 13cとヒータブロック 16bとの間にフィルム Fの重 なり部分 F2を挟み込むようにしてシール処理を行う例を挙げて説明した。しかし、本 発明はこれに限定されるものではない。  In the above embodiment, an example in which the sealing process is performed so that the overlapping portion F2 of the film F is sandwiched between the surface fastener 13c and the heater block 16b has been described. However, the present invention is not limited to this.
[0082] シール処理を行う形態としては、例えば、フィンによってシール部分を挟み込むよう にしてシール処理を行ってもよ!/、し、重なり部分としても折り返し部分を作らずに単純 にオーバーラップさせた部分をシール処理するようにしてもよい。 [0082] As a form of performing the sealing process, for example, the sealing process may be performed by sandwiching the sealing part with the fins! /, And the overlapping part may be simplified without forming the folded part. The part overlapped with each other may be sealed.
[0083] (F) [0083] (F)
上記実施形態では、ヒータベルト 16aとの間にフィルム Fの重なり部分 F2を挟み込 んでシール処理を行う面ファスナー 13cが、縦シール機構 15ではなく成形機構 13側 に設けられている例を挙げて説明した。しかし、本発明はこれに限定されるものでは ない。  In the above embodiment, an example in which the surface fastener 13c that performs the sealing process by sandwiching the overlapping portion F2 of the film F with the heater belt 16a is provided on the molding mechanism 13 side instead of the vertical sealing mechanism 15 is given. explained. However, the present invention is not limited to this.
[0084] 面ファスナーは縦シール処理に不可欠な構成であることから、縦シール機構 15側 の構成] ¾材として考えることもできる。  [0084] Since the hook-and-loop fastener is an indispensable configuration for the vertical sealing process, it can also be considered as a structure of the vertical sealing mechanism 15 side.
[0085] (G) [0085] (G)
上記実施形態では、フィルム Fの縦シール部分に接触して熱シールを行う接触部と して、ヒータベルト 16aを用いた例を挙げて説明した。しかし、本発明はこれに限定さ れるものではない。  In the above embodiment, an example in which the heater belt 16a is used as the contact portion that performs heat sealing by contacting the vertical seal portion of the film F has been described. However, the present invention is not limited to this.
[0086] 例えば、図 13に示すように、ヒータ等の加熱部と一体化されたヒートブロック 216bを 、フィルム Fの重なり部分 F2に対して押し付けるように間欠動作させて接触させ、縦シ ールを行う縦シール機構であってもよレ、。  [0086] For example, as shown in FIG. 13, a heat block 216b integrated with a heating unit such as a heater is brought into contact with an intermittent operation so as to be pressed against the overlapping portion F2 of the film F, thereby causing a vertical seal. Even a vertical seal mechanism that performs.
産業上の利用可能性  Industrial applicability
[0087] 本発明の縦シール機構は、縦シール部分の両側が過度に加熱されることを防止す ること力 Sできるため、縦シール部分に沿ってしわやシール不良等の不具合が発生す ることを回避すること力 Sできると!/、う効果を奏することから、包材を搬送しながらシール を行う各種シール装置に対して広く適用可能である。 [0087] The vertical seal mechanism of the present invention is capable of preventing excessive heating of both sides of the vertical seal portion, so that problems such as wrinkles and defective seals occur along the vertical seal portion. Since it has the effect of avoiding this, it can be widely applied to various sealing devices that perform sealing while transporting the packaging material.

Claims

請求の範囲 The scope of the claims
[1] 筒状に形成された包材を搬送しながら、前記包材の重なり部分をシールする縦シ ール機構であって、  [1] A vertical seal mechanism that seals an overlapping portion of the packaging material while conveying the packaging material formed in a cylindrical shape,
前記包材の搬送方向に沿って形成される前記包材の重なり部分に接触する接触 部と、  A contact portion that is in contact with an overlapping portion of the packaging material formed along the conveying direction of the packaging material;
前記接触部を加熱する加熱部と、  A heating part for heating the contact part;
前記接触部との間に前記包材を挟み込むようにして縦シールを行う受け部材と、 を備えており、  A receiving member that performs vertical sealing so as to sandwich the packaging material between the contact portion, and
前記接触部と前記加熱部と前記受け部材とは、前記包材の搬送方向に交差する 方向における前記縦シール部分の両側に向かって、前記接触部から前記包材に対 して付与される単位時間当たりの熱量が少なくなるように構成されている、縦シール 機構。  The contact portion, the heating portion, and the receiving member are provided from the contact portion to the packaging material toward both sides of the vertical seal portion in a direction that intersects the conveyance direction of the packaging material. A vertical seal mechanism that is configured to reduce the amount of heat per hour.
[2] 前記加熱部と前記受け部材とは、前記包材に形成される前記縦シール部分の幅と 略等しい幅を有しており、  [2] The heating unit and the receiving member have a width substantially equal to a width of the vertical seal portion formed in the packaging material,
前記接触部は、前記縦シール部分の幅よりも大きい幅を有している、  The contact portion has a width larger than the width of the vertical seal portion.
請求項 1に記載の縦シール機構。  The vertical seal mechanism according to claim 1.
[3] 前記受け部材は、前記縦シール部分の幅と略等しい幅を有している、 [3] The receiving member has a width substantially equal to the width of the vertical seal portion.
請求項 1に記載の縦シール機構。  The vertical seal mechanism according to claim 1.
[4] 前記受け部材は、幅方向における両側が前記接触部と離間する湾曲状の接触面 を有している、 [4] The receiving member has a curved contact surface whose both sides in the width direction are separated from the contact portion.
請求項 1に記載の縦シール機構。  The vertical seal mechanism according to claim 1.
[5] 前記接触部は、前記縦シール部分との接触部分よりも外側の領域にかけて前記包 材と離間する湾曲面を有している、 [5] The contact portion has a curved surface that is separated from the packaging material over a region outside the contact portion with the vertical seal portion.
請求項 1に記載の縦シール機構。  The vertical seal mechanism according to claim 1.
[6] 前記加熱部は、前記包材の搬送方向に対して直交する平面による断面形状が、略[6] The heating unit has a substantially cross-sectional shape perpendicular to the conveyance direction of the packaging material.
T字型となっており、前記 T字型の凸側の面が前記接触部と近接配置されている、 請求項 1から 5のいずれか 1項に記載の縦シール機構。 6. The vertical seal mechanism according to claim 1, wherein the vertical seal mechanism is T-shaped, and a convex-side surface of the T-shaped is disposed in proximity to the contact portion.
[7] 前記接触部は、前記加熱部の周りを回転する回転帯体である、 請求項 1から 6のいずれ力 4項に記載の縦シール機構。 [7] The contact portion is a rotating belt that rotates around the heating portion. The longitudinal seal mechanism according to any one of claims 1 to 6.
[8] 前記接触部は、前記加熱部と一体的に構成されるヒートブロックである、 請求項 1から 6のいずれか 1項に記載の縦シール機構。 8. The vertical seal mechanism according to claim 1, wherein the contact part is a heat block configured integrally with the heating part.
PCT/JP2007/069628 2006-10-13 2007-10-05 Vertical seal mechanism WO2008044662A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BRPI0719171-5A2A BRPI0719171A2 (en) 2006-10-13 2007-10-05 LONGITUDINAL SEALING MECHANISM
AU2007305506A AU2007305506A1 (en) 2006-10-13 2007-10-05 Longitudinal sealing mechanism
US12/440,692 US20100043352A1 (en) 2006-10-13 2007-10-05 Longitudinal sealing mechanism
GB0906584A GB2455949B (en) 2006-10-13 2007-10-05 Longitudinal sealing mechanism

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-280335 2006-10-13
JP2006280335A JP2008094456A (en) 2006-10-13 2006-10-13 Vertical seal mechanism

Publications (1)

Publication Number Publication Date
WO2008044662A1 true WO2008044662A1 (en) 2008-04-17

Family

ID=39282857

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/069628 WO2008044662A1 (en) 2006-10-13 2007-10-05 Vertical seal mechanism

Country Status (6)

Country Link
US (1) US20100043352A1 (en)
JP (1) JP2008094456A (en)
AU (1) AU2007305506A1 (en)
BR (1) BRPI0719171A2 (en)
GB (1) GB2455949B (en)
WO (1) WO2008044662A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015190011A1 (en) * 2014-06-09 2015-12-17 三光機械株式会社 Multi-column automatic packaging machine

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008136246A1 (en) * 2007-04-26 2008-11-13 Ishida Co., Ltd. Bag making and packaging machine
JP5133777B2 (en) * 2008-05-23 2013-01-30 株式会社イシダ Packaging machine
US20110027507A1 (en) 2009-07-29 2011-02-03 Mileti Robert J Multi-Layer Product With Sealing Areas Of Varying Temperature
US20110027508A1 (en) 2009-07-29 2011-02-03 Mileti Robert J Multi-Layer Product With Sealing Areas Of Varying Sealing Affinities
IT1395722B1 (en) * 2009-09-30 2012-10-19 Rossi AUTOMATIC PACKING MACHINE
US20150119218A1 (en) * 2013-10-31 2015-04-30 Tipper Tie, Inc. Systems with pre-heaters for producing seamed encased products and related devices, methods and computer program products
GB2529431A (en) * 2014-08-19 2016-02-24 Kraft Foods R & D Inc Packaging and a method of manufacture
CN106400327B (en) * 2016-11-28 2022-01-25 浙江美机缝纫机有限公司 Special presser foot of sewing machine for sewing fishing net rope
US11110666B2 (en) 2018-02-12 2021-09-07 Tipper Tie, Inc. Systems with external heat-seal assembly height adjustment control and related seal assemblies
WO2020095562A1 (en) * 2018-11-06 2020-05-14 四国化工機株式会社 Filling packaging machine, content filling container, and manufacturing method therefor
EP4112484A1 (en) 2021-06-28 2023-01-04 Pavan S.p.A. Sealing process and device and packaging device for packaging food products

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58136402U (en) * 1982-03-10 1983-09-13 株式会社フジキカイ Cylindrical film feeding device
JP2001225813A (en) * 2000-02-14 2001-08-21 Tokyo Autom Mach Works Ltd Heat sealer for wrapping material
JP2003040204A (en) * 2001-08-01 2003-02-13 Chuo Housouki Kk Filling and packaging machine
JP2006001552A (en) * 2004-06-15 2006-01-05 Ishida Co Ltd Bag-making and packaging machine

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3729359A (en) * 1971-04-30 1973-04-24 Wright Machinery Co Inc Continuous tube sealer
US4025375A (en) * 1972-05-23 1977-05-24 Mira-Pak, Inc. Method for continuous welding together of plastic sheets
US4586317A (en) * 1983-10-31 1986-05-06 Kraft, Inc. Minutely cross channeled voiding sealing systems
BR8907170A (en) * 1988-11-14 1991-02-26 Capital Formation Inc PERFECT APPLIANCE FOR MANUFACTURING A CLOSED THERMAL SEALING PRODUCT BID, TRANSMISSION BELTS AND FILM MANUFACTURING PROCESS
JP3687924B2 (en) * 1995-05-24 2005-08-24 株式会社イシダ Vertical pillow packaging machine
JP3830297B2 (en) * 1998-06-16 2006-10-04 株式会社東京自働機械製作所 Vertical sealing device for vertical bag making filling and packaging machine
US6170227B1 (en) * 1998-11-05 2001-01-09 Storopack, Inc. Cushioning product and machine and method for producing same
EP1205294A3 (en) * 2000-11-13 2003-05-21 Arkmount Systems Inc. Heat sealing and cutting mechanism and container forming apparatus incorporating the same
US6612356B2 (en) * 2001-04-10 2003-09-02 Exxonmobil Oil Corporation Apparatus for improving film machinability during film sealing
US6810642B2 (en) * 2002-08-05 2004-11-02 Illinois Tool Works Inc. Method and apparatus for sealing zippers to bag making film
US20040040261A1 (en) * 2002-08-27 2004-03-04 Hayssen, Inc. Method and apparatus for providing an improved seam seal in a vertical form fill and package apparatus
US7908826B2 (en) * 2004-11-12 2011-03-22 Frito-Lay North America, Inc. Method and apparatus for providing end seals on vertical stand-up packages

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58136402U (en) * 1982-03-10 1983-09-13 株式会社フジキカイ Cylindrical film feeding device
JP2001225813A (en) * 2000-02-14 2001-08-21 Tokyo Autom Mach Works Ltd Heat sealer for wrapping material
JP2003040204A (en) * 2001-08-01 2003-02-13 Chuo Housouki Kk Filling and packaging machine
JP2006001552A (en) * 2004-06-15 2006-01-05 Ishida Co Ltd Bag-making and packaging machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015190011A1 (en) * 2014-06-09 2015-12-17 三光機械株式会社 Multi-column automatic packaging machine
JP2015229527A (en) * 2014-06-09 2015-12-21 三光機械株式会社 Multi-row type automatic packing machine

Also Published As

Publication number Publication date
GB2455949B (en) 2011-06-15
BRPI0719171A2 (en) 2014-04-15
GB2455949A (en) 2009-07-01
GB0906584D0 (en) 2009-05-27
AU2007305506A1 (en) 2008-04-17
US20100043352A1 (en) 2010-02-25
JP2008094456A (en) 2008-04-24

Similar Documents

Publication Publication Date Title
WO2008044662A1 (en) Vertical seal mechanism
EP2634097A1 (en) Inflation and sealing device for inflatable air cushions
JP6108686B2 (en) Drug packaging device
JP3830297B2 (en) Vertical sealing device for vertical bag making filling and packaging machine
JP4644581B2 (en) Packaging machine and ear folding device
JP2007290771A (en) Packaging body
JP2002104327A (en) Pillow packaging machine
JP4565899B2 (en) Bag making and packaging machine
JP2006036296A (en) Packaging apparatus for rice ball
KR101842685B1 (en) Wrapping apparatus
US20130186926A1 (en) Film drive assembly
JP3831351B2 (en) Packaging bag manufacturing method and vertical filling and packaging machine
JP4472268B2 (en) Bag packing machine
JP6966781B2 (en) Packaging bag and packaging
JP2009286487A (en) Sealing device of packaging bag
JP2011046039A (en) Method of manufacturing flexible packaging bag equipped with checking function and convex/concave protrusion forming apparatus used in the method
JP7303966B1 (en) strapping machine
JP2567176Y2 (en) Bag making device with rotary heat sealer
JP6111047B2 (en) Corner seal device and pillow packaging machine using the same
JP6207812B2 (en) Folding line forming device for packaging film
JP4139273B2 (en) Adhesive tape pasting device and pasting method
JP7197137B2 (en) Product feeding belt, product feeding device and packaging machine
JP2017206292A (en) Opening device of pouch
JP2024069901A (en) Packaging material heating device, packaging machine and packaging method
JP3732692B2 (en) Sheet packaging manufacturing equipment

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07829366

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 12440692

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 0906584

Country of ref document: GB

Kind code of ref document: A

Free format text: PCT FILING DATE = 20071005

WWE Wipo information: entry into national phase

Ref document number: 0906584.8

Country of ref document: GB

WWE Wipo information: entry into national phase

Ref document number: 2007305506

Country of ref document: AU

ENP Entry into the national phase

Ref document number: 2007305506

Country of ref document: AU

Date of ref document: 20071005

Kind code of ref document: A

122 Ep: pct application non-entry in european phase

Ref document number: 07829366

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: PI0719171

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20090409