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JP6850087B2 - A vertical filling and packaging machine, a horizontal sealing device for the vertical filling and packaging machine, and a method for manufacturing a liquid product in a packaging bag. - Google Patents

A vertical filling and packaging machine, a horizontal sealing device for the vertical filling and packaging machine, and a method for manufacturing a liquid product in a packaging bag. Download PDF

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Publication number
JP6850087B2
JP6850087B2 JP2016148480A JP2016148480A JP6850087B2 JP 6850087 B2 JP6850087 B2 JP 6850087B2 JP 2016148480 A JP2016148480 A JP 2016148480A JP 2016148480 A JP2016148480 A JP 2016148480A JP 6850087 B2 JP6850087 B2 JP 6850087B2
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Japan
Prior art keywords
horn
tubular film
anvil
sealing device
film
Prior art date
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Application number
JP2016148480A
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Japanese (ja)
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JP2017071442A (en
Inventor
正貴 鶴田
正貴 鶴田
山口　晶
晶 山口
翼 新谷
翼 新谷
隆之 横山
隆之 横山
洋樹 神澤
洋樹 神澤
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Orihiro Engineering Co Ltd
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Orihiro Engineering Co Ltd
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Publication of JP2017071442A publication Critical patent/JP2017071442A/en
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Publication of JP6850087B2 publication Critical patent/JP6850087B2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—Packaging machines
    • B29C66/8491—Packaging machines welding through a filled container, e.g. tube or bag
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
    • B29C65/7888—Means for handling of moving sheets or webs
    • B29C65/7891—Means for handling of moving sheets or webs of discontinuously moving sheets or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/03—After-treatments in the joint area
    • B29C66/032—Mechanical after-treatments
    • B29C66/0326—Cutting, e.g. by using waterjets, or perforating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/133—Fin-type joints, the parts to be joined being flexible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
    • B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
    • 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
    • B29C66/342—Preventing air-inclusions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—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
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • B29C66/81435—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned comprising several parallel ridges, e.g. for crimping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/843—Machines for making separate joints at the same time in different planes; Machines for making separate joints at the same time mounted in parallel or in series
    • B29C66/8432—Machines for making separate joints at the same time mounted in parallel or in series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B29K2705/02—Aluminium

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closing Of Containers (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Package Closures (AREA)

Description

本発明は、液体の製品が充填された包装袋を製造する縦型充填包装機、該縦型充填包装機の横シール装置、および包装袋入り液体製品の製造方法に関する。 The present invention relates to a vertical filling and packaging machine for producing a packaging bag filled with a liquid product, a horizontal sealing device for the vertical filling and packaging machine, and a method for producing a liquid product in a packaging bag.

一般的な縦型充填包装機は、帯状のフィルムを縦方向（鉛直方向）に送りながら、その横幅の中央で折り曲げて該フィルムの左右両端を重ね合わせ、この重ね合わせ部を縦方向に熱シールしてチューブ状フィルムを形成し、チューブ状フィルムの下側の開口部を横方向に熱シールし、チューブ状フィルム内に液体の製品を充填し、チューブ状フィルムの上側の開口部を横方向に熱シールするものである。以下では、縦方向に搬送されるチューブ状フィルムの上側および下側の開口部をそれぞれ横方向に溶着することを「横シール」と呼び、該チューブ状フィルムの横シールが行われた部分を「横シール部」と呼ぶことにする。 In a general vertical filling and packaging machine, a strip-shaped film is fed in the vertical direction (vertical direction), bent at the center of the horizontal width, and the left and right ends of the film are overlapped, and the overlapped portion is heat-sealed in the vertical direction. To form a tubular film, heat-seal the lower opening of the tubular film laterally, fill the tubular film with a liquid product, and laterally open the upper opening of the tubular film. It is a heat seal. In the following, welding the upper and lower openings of the tubular film transported in the vertical direction in the horizontal direction is referred to as "horizontal sealing", and the portion of the tubular film subjected to the horizontal sealing is referred to as "horizontal sealing". It will be called "horizontal seal part".

チューブ状フィルムの上側開口部の横シールは、十分なシール強度を確保するために、チューブ状フィルムの液体製品が存在しない部位に行われる。しかし、液体製品が存在しない部位に横シールを行なった場合は製造後の包装袋内に空気が残ってしまうため、包装袋内の液体製品の腐敗や酸化を早めるおそれがある。 The lateral sealing of the upper opening of the tubular film is performed at a site where no liquid product of the tubular film is present in order to ensure sufficient sealing strength. However, if the horizontal seal is applied to a portion where the liquid product does not exist, air remains in the packaging bag after production, which may accelerate the decay and oxidation of the liquid product in the packaging bag.

そこで製造後の包装袋内の空気を最小限に抑える方法として、チューブ状フィルム内に液体の製品を充填した後、チューブ状フィルムの液体製品が存在している部位を一対のシゴキローラで挟んだ状態にしてチューブ状フィルムを下方へ送ることで、チューブ状フィルムにおける液体製品の直ぐ上の部分に扁平部を形成し、その扁平部を横シールするという方法が提案されている（例えば特許文献１，２参照）。 Therefore, as a method of minimizing the air in the packaging bag after manufacturing, after filling the tubular film with a liquid product, the part where the liquid product of the tubular film exists is sandwiched between a pair of shigoki rollers. A method has been proposed in which a flat portion is formed in a portion immediately above the liquid product in the tubular film by feeding the tubular film downward, and the flat portion is laterally sealed (for example, Patent Documents 1 and 1). 2).

特許３９３０４９２号Patent No. 3930492 特開２００６−３４１８５４号公報Japanese Unexamined Patent Publication No. 2006-341854

しかし、一対のシゴキローラでチューブ状フィルムの液体製品が存在している部位を挟み込んで扁平部を形成するとき、液体製品を扁平部のフィルム間から完全に無くすことは困難である。このため、扁平部を横シールする際に、液体の製品が挟み込まれたフィルム同士をヒートブロックで溶着する状態が起こりうる。 However, when a flat portion is formed by sandwiching a portion of a tubular film in which a liquid product exists with a pair of shigokirara, it is difficult to completely eliminate the liquid product from between the films in the flat portion. Therefore, when the flat portion is laterally sealed, a state in which the films sandwiched between the liquid products are welded to each other by a heat block may occur.

また、横シール部を形成するためには、チューブ状フィルムをヒートブロック間に挟んでフィルムの溶融温度付近あるいはそれ以上の温度に加熱している。このような温度となる横シール部のフィルム間に僅かでも液体が存在していると、液体がヒートブロックの熱で気化して発泡してしまう場合がある。特に、チューブ状フィルムがヒートブロック対で挟まれていた状態から解放されると、発泡の泡が拡がり、横シール部が白濁してしまう場合がある。この発泡および白濁の発生は外観の美粧性を低下させるとともに、シール性能も低下させてしまう。この対策として、現状では、フィルム同士が溶着された後、直ちにヒートブロックを冷却用ブロックに替え、溶着部を冷却用ブロック間に挟んで冷却することで発泡を防止している。 Further, in order to form the horizontal seal portion, the tubular film is sandwiched between heat blocks and heated to a temperature near or higher than the melting temperature of the film. If even a small amount of liquid is present between the films of the horizontal sealing portion at such a temperature, the liquid may be vaporized by the heat of the heat block and foamed. In particular, when the tubular film is released from the state of being sandwiched between the heat block pairs, the foamed bubbles may spread and the lateral seal portion may become cloudy. The occurrence of this foaming and cloudiness lowers the cosmetic appearance and also lowers the sealing performance. As a countermeasure, at present, after the films are welded to each other, the heat block is immediately replaced with a cooling block, and the welded portion is sandwiched between the cooling blocks to cool the film to prevent foaming.

しかし、液体の製品を収容する包装袋の場合には比較的厚いフィルムが求められるため、厚いフィルム同士を溶着するための加熱温度は相応に高くなる。また、フィルム表面にアルミ層が設けられている場合には、横シールされるフィルム間にヒートブロックの熱が伝わりやすくなる。これらの場合、チューブ状フィルムからヒートブロックを離間すると直ぐに発泡が起きてしまい、発泡を抑え込むことが困難である。 However, in the case of a packaging bag for accommodating a liquid product, a relatively thick film is required, so that the heating temperature for welding the thick films to each other is correspondingly high. Further, when the aluminum layer is provided on the film surface, the heat of the heat block is easily transferred between the films to be laterally sealed. In these cases, foaming occurs immediately when the heat block is separated from the tubular film, and it is difficult to suppress the foaming.

そこで本発明は、上述した問題を解消するため、チューブ状フィルムに横シールを行う際フィルム間に液体が存在した状態であっても、横シール部に気泡や白濁が生じないようにする縦型充填包装機および、それに用いられる横シール装置を提供することを目的とする。 Therefore, in order to solve the above-mentioned problems, the present invention is a vertical type that prevents air bubbles and white turbidity from occurring in the horizontal sealing portion even when a liquid is present between the films when the tubular film is horizontally sealed. It is an object of the present invention to provide a filling and packaging machine and a horizontal sealing device used for the filling and packaging machine.

本発明の一態様の縦型充填包装機は、
縦方向に送られ下端が閉じられ上端が開口したチューブ状フィルムの中に製品を投入する投入パイプと、
投入パイプにおける前記製品の出口の下方に配置され、チューブ状フィルムの製品が存在する部分を挟み込みつつチューブ状フィルムの下方への送りに伴って回転することでチューブ状フィルムに扁平部を形成する一対のシゴキローラと、
一対のシゴキローラの下方に配設され、チューブ状フィルムの扁平部の横方向全幅に亘って、チューブ状フィルムを構成する互いに対向するフィルム同士を超音波振動で溶着して横シール部を形成する横シール装置と、を備える。横シール装置は、超音波振動子を内蔵しチューブ状フィルムの横方向に延びるホーンと、ホーンを受けるアンビルと、を備えている。アンビルはチューブ状フィルムを間においてホーンと対向配置され、ホーンから離間する方向およびホーンに当接する方向に移動可能である。ホーンのアンビルとの対向面は平らな面である。アンビルのホーンとの対向面は線状に延びる複数の凸条部と、複数の凸条部で囲まれた複数の凹部と、を有している。凹部の底部は平面であり、凹部の底部と凹部の側面とは鈍角をなす。 The vertical filling and packaging machine according to one aspect of the present invention
An input pipe that feeds products in the vertical direction, the lower end is closed, and the upper end is open.
A pair that is arranged below the outlet of the product in the input pipe and forms a flat portion on the tubular film by rotating with the downward feeding of the tubular film while sandwiching the portion where the product of the tubular film exists. Shigokirara and
Horizontally arranged below the pair of shigokirara, the films forming the tubular film are welded together by ultrasonic vibration over the entire width of the flat portion of the tubular film in the lateral direction to form a lateral seal portion. It is equipped with a sealing device. The horizontal sealing device includes a horn containing an ultrasonic vibrator and extending in the lateral direction of the tubular film, and an anvil that receives the horn. The anvil is arranged with the tubular film facing the horn between them, and can move in the direction away from the horn and in the direction in contact with the horn. The surface of the horn facing the anvil is a flat surface. The surface of the anvil facing the horn has a plurality of linearly extending ridges and a plurality of recesses surrounded by the plurality of ridges. Bottom of the recess is Ri plane Der, the side surface of the bottom portion and the recess of the concave portion form an obtuse angle.

本発明によれば、縦型充填包装機において、チューブ状フィルムに横シールを行う際、フィルム間に液体が存在した状態であっても該液体は超音波振動で排出され、横シール部には気泡や白濁が生じないようになる。したがって、製造する包装袋のシール性能や美粧性を容易に向上させることができる。 According to the present invention, when horizontal sealing is performed on a tubular film in a vertical filling and packaging machine, the liquid is discharged by ultrasonic vibration even if a liquid exists between the films, and the horizontal sealing portion is covered with the liquid. No bubbles or cloudiness will occur. Therefore, the sealing performance and cosmeticity of the packaging bag to be manufactured can be easily improved.

一実施例の縦型充填包装機を模式的に示す正面図である。It is a front view which shows typically the vertical filling packaging machine of one Example. 一実施例の縦型充填包装機を模式的に示した斜視図である。It is a perspective view which showed typically the vertical filling and packaging machine of one Example. 本発明に適用される横シール装置の具体的な構造を示す斜視図である。It is a perspective view which shows the specific structure of the horizontal seal apparatus applied to this invention. 本発明に適用される横シール装置とその周辺の構成による動作を説明する図である。It is a figure explaining the operation by the structure of the horizontal seal device applied to this invention and its surroundings. アンビルと切断装置の拡大図である。It is an enlarged view of anvil and a cutting device. 本発明に適用される横シール装置としての超音波溶着機のアンビルの好ましい構成例を示す図である。It is a figure which shows the preferable structural example of the anvil of the ultrasonic welding machine as a horizontal sealing device applied to this invention. 図６に示すアンビルの変形例を示す図である。It is a figure which shows the modification of the anvil shown in FIG. 本発明に適用される横シール装置としての超音波溶着機のアンビルの他の好ましい構成例を示す図である。It is a figure which shows the other preferable configuration example of the anvil of the ultrasonic welding machine as a horizontal sealing device applied to this invention.

以下、本発明の実施形態について図面を参照して説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１は本発明の一実施形態による縦型充填包装機を模式的に示す正面図、図２はこの実施形態の縦型充填包装機を模式的に示した斜視図である。 FIG. 1 is a front view schematically showing a vertical filling and packaging machine according to an embodiment of the present invention, and FIG. 2 is a perspective view schematically showing a vertical filling and packaging machine according to this embodiment.

図１および図２を参照すると、本実施形態の縦型充填包装機は、縦方向（鉛直方向）に送られるシート状のＣＰＰフィルム（Cast Polypropylene film）の横幅方向端部を互いに重ね合わせて概ね扁平なチューブ状フィルム１を形成するための製袋ガイド２を備える。 With reference to FIGS. 1 and 2, in the vertical filling and packaging machine of the present embodiment, the lateral width direction ends of the sheet-shaped CPP film (Cast Polypropylene film) fed in the vertical direction (vertical direction) are overlapped with each other. A bag making guide 2 for forming a flat tubular film 1 is provided.

製袋ガイド２の下方には、扁平なチューブ形状に成形されたフィルム１の折り曲げ部１ａと重ね合わせ部１ｂのそれぞれに対して縦方向に熱溶着（熱シールとも呼ばれる。）を行う複数の縦シール装置３，４が配置されている。チューブ状フィルム１の折り曲げ部１ａと重ね合わせ部１ｂはチューブ状フィルム１の横方向（水平方向）の両側縁にそれぞれ位置する。 Below the bag making guide 2, a plurality of vertical parts (also referred to as heat seals) are vertically welded (also referred to as heat seals) to each of the bent portion 1a and the overlapping portion 1b of the film 1 formed into a flat tube shape. Sealing devices 3 and 4 are arranged. The bent portion 1a and the overlapping portion 1b of the tubular film 1 are located on both side edges of the tubular film 1 in the lateral direction (horizontal direction).

縦シール装置３は一対の金属製ブロック３ａ，３ｂを備え、もう一方の縦シール装置４もまた一対の金属製ブロック４ａ，４ｂを備える。一対の金属製ブロック３ａ，３ｂ、および、一対の金属製ブロック４ａ，４ｂは、チューブ状フィルム１を間において対向配置され、かつ、不図示の駆動機構によって、互いに離間する方向および互いに当接する方向に移動可能である。縦シール装置３，４の各々を構成する一対のブロックのうちの一方にヒータが内蔵されている。これらの縦シール装置３，４によって、チューブ状フィルム１の横方向の両側縁に縦シール部１ｄが形成される。 The vertical sealing device 3 includes a pair of metal blocks 3a and 3b, and the other vertical sealing device 4 also includes a pair of metal blocks 4a and 4b. The pair of metal blocks 3a and 3b and the pair of metal blocks 4a and 4b are arranged so as to face each other with the tubular films 1 facing each other, and are separated from each other and abutted against each other by a drive mechanism (not shown). It is possible to move to. A heater is built in one of the pair of blocks constituting each of the vertical sealing devices 3 and 4. These vertical sealing devices 3 and 4 form vertical sealing portions 1d on both lateral edges of the tubular film 1.

各縦シール装置３，４の上側および下側には、チューブ状フィルム１の横方向の両側端部を挟みながら回転してチューブ状フィルム１を下方に案内する一対のガイドローラ５Ａ，５Ｂが設けられている。 On the upper and lower sides of the vertical sealing devices 3 and 4, a pair of guide rollers 5A and 5B that rotate while sandwiching the lateral end portions of the tubular film 1 to guide the tubular film 1 downward are provided. Has been done.

各縦シール装置３，４の下側のガイドローラ５Ａ，５Ｂの下方には一対のシゴキローラ６が設けられている。各縦シール装置３，４の下側のガイドローラ５Ａ，５Ｂと、シゴキローラ６との間には、チューブ状フィルム１の横方向の両側付近をそれぞれ挟みながら、不図示のモータで同期駆動されてチューブ状フィルム１を下方へ送る２組の送りローラ７Ａ，７Ｂが配設されている。また、シゴキローラ６は送りローラ７Ａ，７Ｂの回転と同期して回転するものである。 A pair of shigoki rollers 6 are provided below the guide rollers 5A and 5B on the lower side of the vertical sealing devices 3 and 4. The guide rollers 5A and 5B on the lower side of the vertical sealing devices 3 and 4 and the shigoki roller 6 are synchronously driven by a motor (not shown) while sandwiching the vicinity of both sides of the tubular film 1 in the lateral direction. Two sets of feed rollers 7A and 7B for feeding the tubular film 1 downward are arranged. Further, the shigoki roller 6 rotates in synchronization with the rotation of the feed rollers 7A and 7B.

一対のシゴキローラ６は、チューブ状フィルム１を横方向の全幅にわたって挟み込むことによって、チューブ状フィルム１内に投入された液体の製品を分割するものであり、チューブ状フィルム１を挟んだ状態でチューブ状フィルム１の送りに伴って回転させられる。そのため、一対のシゴキローラ６はチューブ状フィルム１を間において対向配置されており、不図示の駆動機構によって、互いに離間する方向および互いに当接する方向に移動可能である。 チューブ状フィルム１内に液体（またはペースト状）の製品を投入する投入パイプ８は、製袋ガイド２の上方から製袋ガイド２の内側を通ってシゴキローラ６の直上まで鉛直方向に延在している。投入パイプ８の液体製品の出口の下方にシゴキローラ６が配置されている。 The pair of shigoki rollers 6 divide the liquid product charged into the tubular film 1 by sandwiching the tubular film 1 over the entire width in the lateral direction, and have a tubular shape with the tubular film 1 sandwiched therein. It is rotated as the film 1 is fed. Therefore, the pair of shigoki rollers 6 are arranged so as to face each other between the tubular films 1 and can be moved in a direction in which they are separated from each other and in a direction in which they are in contact with each other by a drive mechanism (not shown). The charging pipe 8 for charging the liquid (or paste-like) product into the tubular film 1 extends vertically from above the bag-making guide 2 through the inside of the bag-making guide 2 to directly above the shigoki roller 6. There is. A shigoki roller 6 is arranged below the outlet of the liquid product of the input pipe 8.

シゴキローラ６の下方には横シール装置９が配置されている。横シール装置９はチューブ状フィルム１の全幅に渡って超音波溶着を行うことで、チューブ状フィルム１に横シール部１ｅを形成する。具体的には横シール装置９は、図３に示すように、チューブ状フィルム１の全幅を超える長さを持った一対の金属製ブロック９ａ，９ｂを備える。一対のブロック９ａ，９ｂは、チューブ状フィルム１を間において対向配置され、かつ、不図示の駆動機構によって、互いに離間する方向および互いに当接する方向に移動可能である。横シール装置９の開閉動作は前述の縦シール装置３，４のブロック開閉動作と同期させてある。横シール装置９を構成する一対のブロック９ａ、９ｂのうちの一方は超音波振動子を内蔵したものであり、ホーンと呼ばれる。もう一方のブロックは、超音波ホーンを内蔵したブロックを受けるものであり、アンビルと呼ばれる。 A horizontal sealing device 9 is arranged below the shigoki roller 6. The horizontal sealing device 9 forms the horizontal sealing portion 1e on the tubular film 1 by performing ultrasonic welding over the entire width of the tubular film 1. Specifically, as shown in FIG. 3, the horizontal sealing device 9 includes a pair of metal blocks 9a and 9b having a length exceeding the entire width of the tubular film 1. The pair of blocks 9a and 9b are arranged so that the tubular films 1 face each other, and can be moved in a direction in which they are separated from each other and in a direction in which they are in contact with each other by a drive mechanism (not shown). The opening / closing operation of the horizontal sealing device 9 is synchronized with the block opening / closing operation of the vertical sealing devices 3 and 4 described above. One of the pair of blocks 9a and 9b constituting the lateral sealing device 9 has an ultrasonic oscillator built-in, and is called a horn. The other block receives a block with a built-in ultrasonic horn and is called an anvil.

再び図１および図２を参照すると、横シール装置９の下方には、最終の包装品の縦方向長さ分を隔てて切断装置１０が配置されている。切断装置１０はチューブ状フィルム１の全幅を超える長さを持った一対の金属製ブロック１０ａ，１０ｂを備える。一対のブロック１０ａ，１０ｂは、チューブ状フィルム１を間において対向配置され、かつ、不図示の駆動機構によって、互いに離間する方向および互いに当接する方向に移動可能である。切断装置１０の開閉動作は前述の縦シール装置３，４の開閉動作と同期させてある。また、切断装置１０を構成する一対のブロック１０ａ，１０ｂのうちの一方にパンチ１１(図４（ｅ）参照)が仕込まれ、これに相対する他方のブロックにそのパンチ１１を受けるダイが形成されている。このような構成により、切断装置１０はブロック１０ａ，１０ｂ間にチューブ状フィルム１の横シール部１ｅの全領域を挟みつつ、フィルム搬送方向における横シール部１ｅの中間を通るようにチューブ状フィルム１を横方向全幅に渡って切断する。 Referring to FIGS. 1 and 2 again, a cutting device 10 is arranged below the horizontal sealing device 9 with a vertical length of the final package. The cutting device 10 includes a pair of metal blocks 10a and 10b having a length exceeding the entire width of the tubular film 1. The pair of blocks 10a and 10b are arranged so that the tubular films 1 face each other, and can be moved in a direction in which they are separated from each other and in a direction in which they are in contact with each other by a drive mechanism (not shown). The opening / closing operation of the cutting device 10 is synchronized with the opening / closing operation of the vertical sealing devices 3 and 4 described above. Further, a punch 11 (see FIG. 4E) is charged in one of the pair of blocks 10a and 10b constituting the cutting device 10, and a die for receiving the punch 11 is formed in the other block facing the punch 11 (see FIG. 4E). ing. With such a configuration, the cutting device 10 sandwiches the entire region of the horizontal seal portion 1e of the tubular film 1 between the blocks 10a and 10b, and passes through the middle of the horizontal seal portion 1e in the film transport direction. Is cut over the entire width in the horizontal direction.

次に、上述した縦型充填包装機の動作を説明する。この動作の説明においては図１〜３を参照するだけでなく図４も参照されたい。なお、図４は、チューブ状フィルム１への横シールを分かり易くするために、図１および図２に比べて各装置構成の設置間隔を小さく変えてある。 Next, the operation of the vertical filling and packaging machine described above will be described. In the description of this operation, refer not only to FIGS. 1 to 3 but also to FIG. In FIG. 4, in order to make the horizontal seal on the tubular film 1 easy to understand, the installation intervals of the respective device configurations are changed to be smaller than those in FIGS. 1 and 2.

シート状のＣＰＰフィルムが製袋ガイド２で折り曲げられ、該フィルムの横幅方向端部が互いに重ね合わさって、フィルムの左側部分と右側部分が互いに対向し、概ね扁平なチューブ状フィルム１が形成されるように、作業者は、シート状フィルムを包装機内にセットする。そして、送りローラ７Ａ，７Ｂによりチューブ状フィルム１を下方へ送ることと、チューブ状フィルム１の折り曲げ部１ａと重ね合わせ部１ｂのそれぞれに対して縦シール装置３，４によって縦シール部１ｄを形成することを交互に繰り返す。しかる後、チューブ状フィルム１が横シール装置９のブロック９ａ，９ｂ間を通過したところで、フィルム送りを停止し、横シール装置９のブロック９ａ，９ｂ同士を接近させていく。これにより、チューブ状フィルム１の横方向に第一の横シール部１ｅが形成される。 The sheet-shaped CPP film is bent by the bag making guide 2, the lateral end portions of the film are overlapped with each other, and the left side portion and the right side portion of the film face each other to form a substantially flat tubular film 1. As described above, the operator sets the sheet-like film in the packaging machine. Then, the tubular film 1 is fed downward by the feed rollers 7A and 7B, and the vertical sealing portions 1d are formed by the vertical sealing devices 3 and 4 for each of the bent portion 1a and the overlapping portion 1b of the tubular film 1. Alternately repeat what you do. After that, when the tubular film 1 passes between the blocks 9a and 9b of the horizontal sealing device 9, the film feeding is stopped and the blocks 9a and 9b of the horizontal sealing device 9 are brought closer to each other. As a result, the first lateral seal portion 1e is formed in the lateral direction of the tubular film 1.

そして、第一の横シール部１ｅが切断装置１０の少し上に位置するまでチューブ状フィルム１を送る。第一の横シール部１ｅを底部としてチューブ状フィルム１内に投入パイプ８（図４では不図示。）から液体の製品を投入する。投入する液体の製品は、ペースト状物、又は、液体とペースト状物の混ぜものであってもよい。この投入量は液体製品の上端がシゴキローラ６の位置を越える程度とされる（図４（ａ）参照）。それから一対のシゴキローラ６の間を閉じ、シゴキローラ６によって、チューブ状フィルム１内の液体の製品をフィルム送り方向にて分割する（図４（ｂ）参照）。この状態でシゴキローラ６および送りローラ７Ａ，７Ｂを回転させてチューブ状フィルム１を下方に送ると、製品投入で膨らんでいるチューブ状フィルム１がシゴキローラ６間で扁平に押し潰されつつ、チューブ状フィルム１内に液体製品が空になった部分（扁平部と呼ぶ。）１２が形成される（図４（ｃ）参照）。 Then, the tubular film 1 is fed until the first lateral seal portion 1e is located slightly above the cutting device 10. A liquid product is charged from a charging pipe 8 (not shown in FIG. 4) into the tubular film 1 with the first horizontal seal portion 1e as the bottom. The liquid product to be charged may be a paste or a mixture of the liquid and the paste. This input amount is such that the upper end of the liquid product exceeds the position of the shigoki roller 6 (see FIG. 4A). Then, the space between the pair of shigoki rollers 6 is closed, and the liquid product in the tubular film 1 is divided in the film feeding direction by the shigoki rollers 6 (see FIG. 4B). In this state, when the shigoki roller 6 and the feed rollers 7A and 7B are rotated to feed the tube-shaped film 1 downward, the tube-shaped film 1 swelled by product loading is flatly crushed between the shigoki rollers 6 and the tube-shaped film 1 is fed. A portion (referred to as a flat portion) 12 in which the liquid product is emptied is formed in 1. (See FIG. 4 (c)).

この扁平部１２の所定の位置１２ａが横シール装置９の所まで送られたら、チューブ状フィルム１の送りを停止し、横シール装置９の一対のブロック９ａ，９ｂ同士を接近させていく。これにより、第二の横シール部１ｅが形成されて、チューブ状フィルム１の上側の開口が密閉される（図４（ｄ）参照）。 When the predetermined position 12a of the flat portion 12 is fed to the lateral sealing device 9, the feeding of the tubular film 1 is stopped, and the pair of blocks 9a and 9b of the lateral sealing device 9 are brought closer to each other. As a result, the second lateral seal portion 1e is formed, and the upper opening of the tubular film 1 is sealed (see FIG. 4D).

その後、シゴキローラ６間を開け、再び送りローラ７Ａ，７Ｂを回転させてチューブ状フィルム１を下方に送り、第二の横シール部１ｅの位置が切断装置１０の所まで来たら、チューブ状フィルム１の送りを停止し、切断装置１０の一対のブロック１０ａ，１０ｂ同士を接近させていく。これにより、第二の横シール部１ｅの送り方向幅の中間でチューブ状フィルム１が切断され、液体製品が入った４方シールタイプの包装袋Ｗが得られる（図４（ｅ）参照）。以上の一連の動作を繰り返すことで、次々と、液体製品が入った４方シールタイプの包装袋Ｗを製造することができる。 After that, the gap between the shigoki rollers 6 is opened, the feed rollers 7A and 7B are rotated again to feed the tubular film 1 downward, and when the position of the second lateral seal portion 1e reaches the cutting device 10, the tubular film 1 The pair of blocks 10a and 10b of the cutting device 10 are brought closer to each other. As a result, the tubular film 1 is cut in the middle of the feed direction width of the second horizontal seal portion 1e, and a four-way seal type packaging bag W containing the liquid product is obtained (see FIG. 4E). By repeating the above series of operations, a four-way seal type packaging bag W containing a liquid product can be manufactured one after another.

なお、４方シールタイプの包装袋を製造する例を説明したが、図１および図２に示した縦シール装置３をチューブ状フィルム１の折り曲げ部１ａに対して設置しないことで、液体製品が入った３方シールタイプの包装袋を製造する縦型充填包装機に変更可能である。また、上述した縦型充填包装機において、縦シール装置３，４の間にこれらと同じ縦シール装置を横方向に複数配設することにより、複数個の４方シールタイプの包装袋を横方向に並べた状態で同時に製造することができる。 Although an example of manufacturing a four-way seal type packaging bag has been described, the liquid product can be produced by not installing the vertical seal device 3 shown in FIGS. 1 and 2 with respect to the bent portion 1a of the tubular film 1. It can be changed to a vertical filling and packaging machine that manufactures a three-way seal type packaging bag containing it. Further, in the above-mentioned vertical filling and packaging machine, by arranging a plurality of the same vertical sealing devices in the horizontal direction between the vertical sealing devices 3 and 4, a plurality of four-way sealing type packaging bags can be arranged in the horizontal direction. It can be manufactured at the same time in a state of being lined up in.

次に、図３に示した横シール装置９を更に具体的に説明する。 Next, the lateral sealing device 9 shown in FIG. 3 will be described more specifically.

横シール装置９としては超音波溶着機が使用されるが、前述したように一対のブロック９ａ，９ｂがチューブ状フィルム１を通過させられる間隔を開けて対向配置されている。第一のブロック９ａがホーンであって、包装材として使用する熱可塑性樹脂フィルムに対して超音波溶着を行う場合２０〜４０ｋＨｚの周波数範囲でホーンを振動させるのがよい。第二のブロック９ｂが第一のブロック９ａに水平に対向して配置され、両ブロック９ａ、９ｂが水平方向（横方向）に相対的に移動して当接する構成となっている。 An ultrasonic welding machine is used as the horizontal sealing device 9, and as described above, the pair of blocks 9a and 9b are arranged so as to face each other with an interval for passing the tubular film 1. When the first block 9a is a horn and ultrasonic welding is performed on a thermoplastic resin film used as a packaging material, it is preferable to vibrate the horn in a frequency range of 20 to 40 kHz. The second block 9b is arranged so as to horizontally face the first block 9a, and both blocks 9a and 9b move relatively in the horizontal direction (horizontal direction) to come into contact with each other.

このように横シール装置９を超音波溶着機によって構成することにより、ブロック９ａ，９ｂ間にチューブ状フィルム１の扁平部１２を挟み込みながらブロック９ａ，９ｂ間のフィルムの内面同士を超音波で振動させて溶着することができる。 By configuring the lateral sealing device 9 with an ultrasonic welding machine in this way, the inner surfaces of the films between the blocks 9a and 9b are vibrated by ultrasonic waves while sandwiching the flat portion 12 of the tubular film 1 between the blocks 9a and 9b. Can be welded.

この超音波溶着方式では、チューブ状フィルム１にシゴキローラ６で形成された扁平部１２に対して横シールを行う時にフィルム間に液体の製品が残っていても、超音波振動で、ブロック９ａ，９ｂの対で挟まれたフィルム間から液体製品などの水分が排出される。横シールが行われるフィルム間に水分が無くなることにより、横シール部に気泡や白濁は生じにくくなる。また、超音波振動は、横シールが行われるフィルム間から、液体製品に含まれる水分以外の成分も排出できる。加えて、横シールの都度に発振周波数やピークパワー（負荷）をモニターすることにより、発振周波数及びピークパワーの検証、最適な発振周波数及びピークパワーの設定などが容易になる。 In this ultrasonic welding method, even if a liquid product remains between the films when the flat portion 12 formed by the shigoki roller 6 is laterally sealed on the tubular film 1, the blocks 9a and 9b are subjected to ultrasonic vibration. Moisture such as liquid products is discharged from between the films sandwiched between the pairs. By eliminating water between the films to be laterally sealed, air bubbles and white turbidity are less likely to occur in the laterally sealed portion. In addition, the ultrasonic vibration can discharge components other than water contained in the liquid product from between the films to which the horizontal seal is performed. In addition, by monitoring the oscillation frequency and peak power (load) each time the horizontal seal is made, it becomes easy to verify the oscillation frequency and peak power, and to set the optimum oscillation frequency and peak power.

さらに、横シール装置９をヒートブロック対で構成した場合、横シール時にヒートブロック自体を発熱させるため、フィルム同士が溶着する温度を温調器で管理する必要があり、ヒートブロックの周りの雰囲気も熱せられてしまう。また、液体製品が入った包装袋を製造している間中、ヒートブロック内のヒータを通電している必要がある。 Further, when the horizontal sealing device 9 is composed of a pair of heat blocks, the heat blocks themselves generate heat during horizontal sealing, so that the temperature at which the films are welded must be controlled by a temperature controller, and the atmosphere around the heat blocks is also affected. It gets hot. In addition, the heater in the heat block needs to be energized during the manufacturing of the packaging bag containing the liquid product.

これに対し、本発明によるフィルム同士の溶着は超音波振動によるフィルムの摩擦発熱で行われるため、フィルムの溶融温度以上にフィルムは加熱されることが無い。このため、フィルムの溶着温度の管理は不要である。また、液体製品とフィルムへの熱によるダメージが軽減される。 On the other hand, since welding of the films according to the present invention is performed by frictional heat generation of the films due to ultrasonic vibration, the films are not heated above the melting temperature of the films. Therefore, it is not necessary to control the welding temperature of the film. It also reduces heat damage to liquid products and films.

また、超音波振動開始から直ぐにフィルムの溶着温度に達するので、横シールしたい時に超音波振動を起こせばよく、電力消費は超音波発振時だけとなる。さらに、ブロック９ａ，９ｂ自体は発熱しないので、該ブロックの周りの雰囲気を常温に維持でき、熱に弱い液体製品が充填された包装袋を良好に製造できる。 Further, since the welding temperature of the film is reached immediately after the start of ultrasonic vibration, ultrasonic vibration may be generated when lateral sealing is desired, and power consumption is limited to ultrasonic oscillation. Further, since the blocks 9a and 9b themselves do not generate heat, the atmosphere around the blocks can be maintained at room temperature, and a packaging bag filled with a heat-sensitive liquid product can be satisfactorily manufactured.

また、横シール部１ｅに気泡や白濁を生じさせないために、第一のブロック９ａ（ホーン）の第二のブロック９ｂと対向する面（以下、ホーンの対向面９ａ’と呼ぶ。）は凹凸のない平坦な面、より好ましくは鏡面（不図示）に形成されているとよい。他方、第二のブロック９ｂ（アンビル）の第一のブロック９ａと対向する面（以下、アンビルの対向面９ｂ’と呼ぶ。）は、複数の凸条部が所定のピッチで形成された面であるとよい。特に、図３に示した第二のブロック９ｂ（アンビル）の対向面９ｂ’は図５〜７に示される構成であることが好ましい。 Further, in order to prevent bubbles and cloudiness from being generated in the horizontal seal portion 1e, the surface of the first block 9a (horn) facing the second block 9b (hereinafter, referred to as the facing surface 9a'of the horn) is uneven. It is preferable that the surface is not flat, more preferably a mirror surface (not shown). On the other hand, the surface of the second block 9b (anvil) facing the first block 9a (hereinafter referred to as the anvil facing surface 9b') is a surface in which a plurality of protrusions are formed at a predetermined pitch. It would be nice to have it. In particular, the facing surface 9b'of the second block 9b (anvil) shown in FIG. 3 preferably has the configuration shown in FIGS. 5 to 7.

図５（ａ）はアンビルの対向面を示している。アンビル９ｂの対向面９ｂ’には後述するように、複数の凸条部が形成された領域１３が形成されている。領域１３はチューブ状フィルムの送り方向Ｆと交差する方向、好ましくは直交する方向に延びる凹条部１４によって、第一の領域１３ａと第二の領域１３ｂに分断されている。凹条部１４ではアンビル９ｂとフィルム１との間に間隙が生じるため、フィルムは溶着されない。フィルムの溶着部は第一及び第二の領域１３ａ，１３ｂに対応する。 FIG. 5A shows the facing surface of the anvil. As will be described later, a region 13 in which a plurality of ridges are formed is formed on the facing surface 9b'of the anvil 9b. The region 13 is divided into a first region 13a and a second region 13b by a concave portion 14 extending in a direction intersecting the feeding direction F of the tubular film, preferably in a direction orthogonal to the feeding direction F. Since a gap is formed between the anvil 9b and the film 1 at the concave portion 14, the film is not welded. The welded portion of the film corresponds to the first and second regions 13a and 13b.

図５（ｂ）は切断装置１０を示している。金属製ブロック１０ａ，１０ｂの一方はダイ（不図示）を備え、他方はパンチ１１を備えている。パンチ１１のチューブ状フィルムの送り方向Ｆに関する両側縁部は切断部１１ａ，１１ｂを構成する。切断部１１ａ，１１ｂは凹条部１４の上側と下側にあり、横シール部は帯状に切断される。パンチ１１は凹条部１４で分断された両側の領域１３ａ，１３ｂを切断する。フィルムの凹条部１４と対向する部位は切断されず、切断屑の一部として廃棄される。フィルムの横方向縁部の近傍では、パンチ１１の切断部１１ａ，１１ｂが送り方向Ｆに関し前方または後方に湾曲している。従って、図５（ｂ），（ｃ）に示すように、完成した包装袋の上側縁部と下側縁部に面取り部１８が形成される。 FIG. 5B shows the cutting device 10. One of the metal blocks 10a and 10b is provided with a die (not shown) and the other is provided with a punch 11. Both side edges of the punch 11 with respect to the feeding direction F of the tubular film form cutting portions 11a and 11b. The cut portions 11a and 11b are on the upper side and the lower side of the concave portion 14, and the lateral seal portion is cut in a strip shape. The punch 11 cuts the regions 13a and 13b on both sides divided by the concave portion 14. The portion of the film facing the concave portion 14 is not cut and is discarded as a part of the cutting waste. In the vicinity of the lateral edge portion of the film, the cut portions 11a and 11b of the punch 11 are curved forward or backward with respect to the feed direction F. Therefore, as shown in FIGS. 5 (b) and 5 (c), chamfered portions 18 are formed on the upper edge portion and the lower edge portion of the completed packaging bag.

図６に、第二のブロック９ｂ（アンビル）の対向面９ｂ’をさらに詳細に示す。図６（ａ）に対向面９ｂ’の斜視図を、図６（ｂ）に対向面９ｂ’の平面図を、図６（ｃ）に図６（ｂ）のＡ−Ａ線に沿った断面図を示している。アンビルの対向面９ｂ’は互いに組み合わされた、ないしは互いに交差した複数の凸条部１５を有している。複数の凸条部１５は、チューブ状フィルムの送り方向Ｆに対して概ね４５度の角度で延びる第一の凸条部１５ａと、同じくチューブ状フィルムの送り方向Ｆに対して概ね４５度の角度で延び、第一の凸条部１５ａと直交する第二の凸状部１５ｂと、から構成されている。第一の凸条部１５ａと第二の凸状部１５ｂは同一の間隔で配置され、複数の凸条部１５は格子状に形成されている。 FIG. 6 shows the facing surface 9b'of the second block 9b (anvil) in more detail. 6 (a) is a perspective view of the facing surface 9b', FIG. 6 (b) is a plan view of the facing surface 9b', and FIG. 6 (c) is a cross section taken along the line AA of FIG. 6 (b). The figure is shown. The facing surfaces 9b'of the anvil have a plurality of ridges 15 that are combined or intersect with each other. The plurality of ridges 15 have an angle of about 45 degrees with respect to the feed direction F of the tubular film as well as the first ridge 15a extending at an angle of about 45 degrees with respect to the feed direction F of the tubular film. It is composed of a second convex portion 15b extending at and orthogonal to the first convex portion 15a. The first convex portion 15a and the second convex portion 15b are arranged at the same interval, and the plurality of convex portions 15 are formed in a grid pattern.

互いに隣接する第一の凸条部１５ａと互いに隣接する第二の凸状部１５ｂとの間に、概ね正方形の凹部１７が形成されている。第一の凸条部１５ａと第二の凸状部１５ｂのチューブ状フィルムの送り方向Ｆに対する角度、ピッチを変更することで、凹部１７を長方形または菱形に形成してもよい。凸条部１５の頂面、すなわちチューブ状フィルムを挟んでホーンに当接させられる当接面１５ｃは好ましくは平坦な面である。凸条部１５の頂面の全域が平面となっていることが好ましく、一部だけが平面となっていなくてもよい。凹部１７は当接面１５ｃに対して引き込んでおり、チューブ状フィルムに当接しない。 A substantially square recess 17 is formed between the first convex portion 15a adjacent to each other and the second convex portion 15b adjacent to each other. The recess 17 may be formed in a rectangular shape or a rhombus by changing the angle and pitch of the first convex portion 15a and the second convex portion 15b with respect to the feeding direction F of the tubular film. The top surface of the ridge portion 15, that is, the contact surface 15c that is brought into contact with the horn across the tubular film is preferably a flat surface. It is preferable that the entire top surface of the ridge portion 15 is flat, and only a part of the convex portion 15 does not have to be flat. The recess 17 is retracted with respect to the contact surface 15c and does not contact the tubular film.

以下の説明で、チューブ状フィルムを構成する２枚の対向するフィルムを第一のフィルム１ｆ及び第二のフィルム１ｇという（図６（ｃ）参照）。チューブ状フィルムの当接面１５ｃに当接する部位では、第一のフィルム１ｆと第二のフィルム１ｇは反対側からもホーン９ａで押し付けられるため、互いに押し付けられ、超音波溶着される。一方、チューブ状フィルムの凹部１７と対向する部位では、第二のフィルム１ｇが凹部１７に逃げることができるため、第一のフィルム１ｆと第二のフィルム１ｇは互いに押し付けられない。たとえ第一のフィルム１ｆと第二のフィルム１ｇが互いに押し付けられるとしても、当接面１５ｃに当接する部位と比べ押し付けられる力は小さい。この結果、第一のブロック９ａと第二のブロック９ｂを互いに押し付けた際に、第一のフィルム１ｆと第二のフィルム１ｇの間にある液体は押し付け力によって、当接面１５ｃと対向する部位から排除され、凹部１７と対向する部位に移動する（図６（ｃ）の矢印Ｆ参照）。換言すれば、第一のフィルム１ｆと第二のフィルム１ｇの間にある液体は凹部１７と対向する部位に蓄積される。当接面１５ｃと対向する部位では、第一のフィルム１ｆと第二のフィルム１ｇが、間に液体が介在しない状態で、または、間に介在する液体が減少した状態で密着する。この結果、第一のフィルム１ｆと第二のフィルム１ｇを良好に超音波溶着させることができる。 In the following description, the two opposing films constituting the tubular film are referred to as a first film 1f and a second film 1g (see FIG. 6C). At the portion of the tubular film that abuts on the contact surface 15c, the first film 1f and the second film 1g are pressed against each other by the horn 9a from the opposite side, so that they are pressed against each other and ultrasonically welded. On the other hand, at the portion of the tubular film facing the recess 17, the second film 1g can escape to the recess 17, so that the first film 1f and the second film 1g are not pressed against each other. Even if the first film 1f and the second film 1g are pressed against each other, the pressing force is smaller than that of the portion that abuts on the contact surface 15c. As a result, when the first block 9a and the second block 9b are pressed against each other, the liquid between the first film 1f and the second film 1g is a portion facing the contact surface 15c due to the pressing force. (See arrow F in FIG. 6 (c)). In other words, the liquid between the first film 1f and the second film 1g is accumulated in the portion facing the recess 17. At the portion facing the contact surface 15c, the first film 1f and the second film 1g are brought into close contact with each other with no liquid intervening between them or with less liquid intervening between them. As a result, the first film 1f and the second film 1g can be satisfactorily ultrasonically welded.

上述のように、パンチ１１はフィルムの溶着されている領域１３ａ，１３ｂを切断するため、フィルム１及びパンチ１１の切断面に付着する液体の量が低減する。これは、当接面１５ｃでは第一のフィルム１ｆと第二のフィルム１ｇの間の液体が排除されているためである。また、凹部１７ではフィルムが溶着されないため、溶着に必要な振動エネルギーを節約することができる。 As described above, since the punch 11 cuts the welded regions 13a and 13b of the film, the amount of liquid adhering to the cut surfaces of the film 1 and the punch 11 is reduced. This is because the liquid between the first film 1f and the second film 1g is excluded from the contact surface 15c. Further, since the film is not welded in the recess 17, the vibration energy required for welding can be saved.

図７（ａ）は、第二のブロック９ｂ（アンビル）の変形例を示す、図６（ｃ）と同様の図である。凹部１７ａの底部１９ａ、すなわち凹部１７の第１のブロック９ａ（ホーン）から最も離れた部位は平面となっている。凹部１７の底部１９ａの形状は正方形、ひし形などの四角形であるが、これに限定されない。図７（ｂ）に示すように凹部１７の底部が尖った頂部である場合、超音波振動によって生じる液体の圧力によって凹部１７の底部が破断する可能性が高まる（Ａ部参照）。これは、液体の圧力が底部に集中するためであると推測される。これに対し図７（ａ）に示す変形例では、液体の圧力が平面形状の底部１９ａに分散して掛かるため、このような破断が生じにくい。図７（ｃ）に示すように、凹部１７ｂの底部１９ｂが曲面となっていてもよい。凹部１７ｂの形状はほぼ半球形状であるが、底部１９ｂが曲面となっている限り、凹部１７ｂの形状はこれに限定されない。第二のフィルム１ｇは凹部１７ｂに沿って曲面状に変形し、曲面状の底部１９ｂを含む凹部１７ｂの底面で支持される。従って、液体の圧力が曲面状の底部１９ｂに分散して掛かり、破断が生じにくい。図７（ａ），（ｃ）に示すいずれの変形例でも、底部１９ａ，１９ｂを深くするのは好ましくなく、第二のフィルム１ｇが液体の圧力によって底部１９ａ，１９ｂに接する程度の深さとすることが好ましい。 FIG. 7 (a) is a diagram similar to FIG. 6 (c) showing a modified example of the second block 9b (anvil). The bottom portion 19a of the recess 17a, that is, the portion of the recess 17 farthest from the first block 9a (horn) is a flat surface. The shape of the bottom portion 19a of the recess 17 is a quadrangle such as a square or a rhombus, but the shape is not limited to this. When the bottom of the recess 17 is a sharp top as shown in FIG. 7 (b), the possibility that the bottom of the recess 17 is broken by the pressure of the liquid generated by the ultrasonic vibration increases (see part A). It is presumed that this is because the pressure of the liquid is concentrated on the bottom. On the other hand, in the modified example shown in FIG. 7A, the pressure of the liquid is dispersed and applied to the bottom portion 19a of the planar shape, so that such breakage is unlikely to occur. As shown in FIG. 7C, the bottom portion 19b of the recess 17b may have a curved surface. The shape of the recess 17b is substantially hemispherical, but the shape of the recess 17b is not limited to this as long as the bottom 19b is a curved surface. The second film 1g is deformed into a curved surface along the concave portion 17b and is supported by the bottom surface of the concave portion 17b including the curved bottom portion 19b. Therefore, the pressure of the liquid is dispersed and applied to the curved bottom portion 19b, and breakage is unlikely to occur. In any of the modified examples shown in FIGS. 7 (a) and 7 (c), it is not preferable to deepen the bottoms 19a and 19b, and the depth is such that 1 g of the second film comes into contact with the bottoms 19a and 19b due to the pressure of the liquid. Is preferable.

図８には、他の実施形態に係る第二のブロック９ｂ（アンビル）の対向面９ｂ’を示す。図８（ａ）に対向面９ｂ’の平面図を、図８（ｂ）に図８（ａ）のＢ部の部分拡大図を、図８（ｃ）に図８（ｂ）のＣ−Ｃ線に沿った断面図を、図８（ｄ）に図８（ｂ）のＤ−Ｄ線に沿った断面図を示している。凸条部１５は複数の第一の凸条部１５ｄと、複数の第二の凸条部１５ｅと、を有している。第一の凸条部１５ｄはチューブ状フィルムの送り方向Ｆと平行に延びている。第二の凸条部１５ｅは第一の凸条部１５ｄの外側、すなわち、送り方向Ｆに関し第一の凸条部１５ｄを挟んで凹条部１４の反対側に位置し、送り方向Ｆと交差する方向、好ましくは直交する方向に延びている。互いに隣接する第一の凸条部１５ｄの間には凹部（凹条部）２０が形成されている。互いに隣接する第二の凸条部１５ｅの間には凹部（凹条部）２１が形成されている。第一の凸条部１５ｄの頂面は、アンビルのチューブ状フィルムを挟んでホーンに当接させられる当接面１５ｆを形成する。第二の凸条部１５ｅの頂面は、アンビルのチューブ状フィルムを挟んでホーンに当接させられる当接面１５ｇを形成する。当接面１５ｆ、１５ｇの構成は当接面１５ｃの構成と同様である。図８（ｂ）では、第一の凸条部１５ｄと第二の凸条部１５ｅを黒で表示している。すなわち、本実施形態では図８（ｂ）において黒で塗りつぶした部分が、当接面１５ｆ，１５ｇを形成する。第一の凸条部１５ｄと第二の凸条部１５ｅは凹条部１４の両側に、凹条部１４の横方向中心線に関して対称に形成されている。第二の凸条部１５ｅは凹条部１４に関しいずれか一方だけに設けてもよい。第二の凸条部１５ｅは横方向に連続的に延びる横シールを形成するため、溶着部の信頼性を高めることができる。 FIG. 8 shows the facing surface 9b'of the second block 9b (anvil) according to another embodiment. 8 (a) is a plan view of the facing surface 9b', FIG. 8 (b) is a partially enlarged view of the portion B of FIG. 8 (a), and FIG. 8 (c) is a CC of FIG. 8 (b). A cross-sectional view taken along the line is shown in FIG. 8 (d), and a cross-sectional view taken along the line DD in FIG. 8 (b) is shown. The ridge portion 15 has a plurality of first ridge portions 15d and a plurality of second ridge portions 15e. The first ridge portion 15d extends parallel to the feeding direction F of the tubular film. The second ridge portion 15e is located outside the first ridge portion 15d, that is, on the opposite side of the ridge portion 14 with the first ridge portion 15d in the feed direction F, and intersects the feed direction F. It extends in the direction of the ridge, preferably in the orthogonal direction. A recess (concave portion) 20 is formed between the first convex portions 15d adjacent to each other. A recess (concave portion) 21 is formed between the second convex portions 15e adjacent to each other. The top surface of the first ridge portion 15d forms a contact surface 15f that is brought into contact with the horn with the anvil tubular film sandwiched between them. The top surface of the second ridge portion 15e forms a contact surface 15 g that is brought into contact with the horn with the anvil tubular film sandwiched therein. The configuration of the contact surfaces 15f and 15g is the same as the configuration of the contact surfaces 15c. In FIG. 8B, the first ridge portion 15d and the second ridge portion 15e are displayed in black. That is, in the present embodiment, the portion painted in black in FIG. 8B forms the contact surfaces 15f and 15g. The first convex portion 15d and the second convex portion 15e are formed symmetrically with respect to the lateral center line of the concave portion 14 on both sides of the concave portion 14. The second convex portion 15e may be provided on only one of the concave portions 14. Since the second ridge portion 15e forms a lateral seal extending continuously in the lateral direction, the reliability of the welded portion can be improved.

本実施形態でも、アンビルの対向面９ｂ’の複数の凸条部１５ｄ，１５ｅが形成された領域１３は、チューブ状フィルムの送り方向Ｆと交差する方向、好ましくは直交する方向に、凹条部１４によって分断されている。切断装置１０は凹条部１４で分断された両側の領域１３ａ，１３ｂを切断部として横シール部を帯状に切断する。本実施形態はフィルム間に液体が残留しやすい包装袋に好適に使用できる。これは、隣接する第一の凸条部１５ｄの間に形成された凹部（凹条部）２０が凹条部１４に連通しているため、排除された液体が効率的に凹条部１４に排出されるためである。また、凹条部１４はフィルムが溶着されないため、溶着に必要な振動エネルギーを節約することができる。 Also in the present embodiment, the region 13 in which the plurality of convex portions 15d and 15e are formed on the facing surface 9b'of the anvil is the concave portion in the direction intersecting the feeding direction F of the tubular film, preferably in the direction orthogonal to the feeding direction F. It is divided by 14. The cutting device 10 cuts the lateral seal portion in a strip shape using the regions 13a and 13b on both sides divided by the concave portion 14 as the cutting portion. This embodiment can be suitably used for a packaging bag in which a liquid tends to remain between films. This is because the concave portion (concave portion) 20 formed between the adjacent first convex portions 15d communicates with the concave portion 14, so that the excluded liquid efficiently reaches the concave portion 14. This is because it is discharged. Further, since the film is not welded to the concave portion 14, the vibration energy required for welding can be saved.

本実施形態では図６，７の実施形態と比べて、溶着強度が向上する。また、図６、７の実施形態では凹部１７との対向部に液体が残留するため、高温時にフィルム間の空間の圧力が高まり液体が漏れだす可能性があるが、本実施形態ではその可能性も低減される。 In this embodiment, the welding strength is improved as compared with the embodiments shown in FIGS. 6 and 7. Further, in the embodiments of FIGS. 6 and 7, since the liquid remains in the portion facing the recess 17, the pressure in the space between the films may increase at a high temperature and the liquid may leak out. Is also reduced.

このように、図６〜８のようにアンビルの対向面９ｂ’を形成することにより、横シール部１ｅに気泡や白濁の発生ならびに液体製品の液体の残存が生じにくくなる。 By forming the facing surface 9b'of the anvil as shown in FIGS. 6 to 8 in this way, the generation of air bubbles and white turbidity and the residual liquid of the liquid product are less likely to occur in the lateral seal portion 1e.

以上説明した縦型充填包装機はチューブ状フィルムに液体製品を充填するものであるが、充填される製品は液体に限定されない。例えば、ヨーグルト、マヨネーズ、クリーム、蜂蜜など固定的性質と液体的性質を兼ねた製品を充填する場合にも気泡や白濁の発生が考えられる。本発明の縦型充填包装機はこのようなゾルまたはゲルを充填する目的で用いることもできる。 The vertical filling and packaging machine described above fills a tubular film with a liquid product, but the filled product is not limited to the liquid. For example, when filling products such as yogurt, mayonnaise, cream, and honey that have both fixed and liquid properties, bubbles and cloudiness may occur. The vertical filling and packaging machine of the present invention can also be used for the purpose of filling such a sol or gel.

以上のように本発明の縦型充填包装機について幾つかの実施形態を示して説明したが、本発明はこれらの実施形態に限定されるものではなく、その技術思想を逸脱しない範囲で種々変更して実施することが可能であることは言うまでもない。 As described above, the vertical filling and packaging machine of the present invention has been described by showing some embodiments, but the present invention is not limited to these embodiments and various modifications are made without departing from the technical idea. Needless to say, it is possible to carry out this.

１ チューブ状フィルム
１ａ 折り曲げ部
１ｂ 重ね合わせ部
１ｄ 縦シール部
１ｅ 横シール部
１ｆ 第一のフィルム
１ｇ 第二のフィルム
２ 製袋ガイド
３、４ 縦シール装置
３ａ、３ｂ、４ａ、４ｂ ブロック
５Ａ、５Ｂ ガイドローラ
６ シゴキローラ
７Ａ、７Ｂ 送りローラ
８ 投入パイプ
９ 横シール装置
９ａ ブロック（ホーン）
９ｂ ブロック（アンビル）
９ｂ’ アンビルの対向面
１０ 切断装置
１０ａ、１０ｂ ブロック
１１ パンチ
１２ 扁平部
１３ 領域
１３ａ 第一の領域
１３ｂ 第二の領域
１４ 凹条部
１５ 凸条部
１５ａ 第一の凸条部
１５ｂ 第二の凸状部
１５ｃ 当接面
１５ｄ 第一の凸条部
１５ｅ 第二の凸条部
１５ｆ、１５ｇ 当接面
１７ 凹部 1 Tube-shaped film 1a Folded part 1b Overlapping part 1d Vertical sealing part 1e Horizontal sealing part 1f First film 1g Second film 2 Bag making guides 3, 4 Vertical sealing devices 3a, 3b, 4a, 4b Blocks 5A, 5B Guide roller 6 Shigoki roller 7A, 7B Feed roller 8 Input pipe 9 Horizontal seal device 9a Block (horn)
9b block (anvil)
9b'Anvil facing surface 10 Cutting device 10a, 10b Block 11 Punch 12 Flat part 13 Area 13a First area 13b Second area 14 Concave part 15 Convex part 15a First convex part 15b Second convex Shape 15c Contact surface 15d First ridge 15e Second ridge 15f, 15g Contact surface 17 Recess

Claims (10)

縦方向に送られ下端が閉じられ上端が開口したチューブ状フィルムの中に製品を投入する投入パイプと、
前記投入パイプの前記製品の出口の下方に配置され、前記チューブ状フィルムの前記製品が存在する部分を挟み込みつつ該チューブ状フィルムの下方への送りに伴って回転することで前記チューブ状フィルムに扁平部を形成する一対のシゴキローラと、
前記一対のシゴキローラの下方に配設され、前記チューブ状フィルムの前記扁平部の横方向全幅に亘って、前記チューブ状フィルムを構成する互いに対向するフィルム同士を超音波振動で溶着して横シール部を形成する横シール装置と、を備え、
前記横シール装置は、超音波振動子を内蔵し前記チューブ状フィルムの横方向に延びるホーンと、前記ホーンを受けるアンビルと、を備え、前記アンビルは前記チューブ状フィルムを間において前記ホーンと対向配置され、前記ホーンから離間する方向および前記ホーンに当接する方向に移動可能であり、
前記ホーンの前記アンビルとの対向面は平らな面であり、前記アンビルの前記ホーンとの対向面は線状に延びる複数の凸条部と、前記複数の凸条部で囲まれた複数の凹部と、を有し、前記凹部の底部は平面であり、前記凹部の前記底部と前記凹部の側面とは鈍角をなす、縦型充填包装機。 An input pipe that feeds products in the vertical direction, the lower end is closed, and the upper end is open.
It is arranged below the outlet of the product of the input pipe, and is flattened to the tubular film by rotating with the downward feeding of the tubular film while sandwiching the portion of the tubular film in which the product exists. A pair of shigokirara that form a part,
A lateral seal portion which is disposed below the pair of shigoki rollers and welds the films facing each other constituting the tubular film by ultrasonic vibration over the entire width of the flat portion of the tubular film in the lateral direction. With a horizontal sealing device, which forms
The horizontal sealing device includes a horn containing an ultrasonic oscillator and extending in the lateral direction of the tubular film, and an anvil that receives the horn, and the anvil has the tubular film sandwiched between the horn and the horn. And can move in the direction away from the horn and in the direction of contacting the horn.
The surface of the horn facing the anvil is a flat surface, and the surface of the anvil facing the horn is a plurality of linearly extending protrusions and a plurality of recesses surrounded by the plurality of protrusions. When having a bottom of the recess Ri plane der, it forms an obtuse angle with the bottom and side surfaces of the recess of the recess, vertical filling packaging machine. 前記複数の凸条部は格子状に形成されている、請求項１に記載の縦型充填包装機。 The vertical filling and packaging machine according to claim 1, wherein the plurality of convex portions are formed in a grid pattern. 前記凸条部の前記チューブ状フィルムを挟んで前記ホーンに当接させられる当接面は平坦な面である、請求項１または２に記載の縦型充填包装機。 The vertical filling and packaging machine according to claim 1 or 2, wherein the contact surface that is brought into contact with the horn with the tubular film of the convex portion sandwiched is a flat surface. 前記横シール装置の下方に配設され、前記横シール部を横方向全幅に渡って切断する切断装置を有し、
前記アンビルの前記対向面は前記複数の凸条部が形成された領域を前記チューブ状フィルムの送り方向と交差する方向に分断する凹条部を有し、
前記切断装置は前記凹条部で分断された両側の前記領域を切断部として前記横シール部を帯状に切断する、請求項１から３のいずれか１項に記載の縦型充填包装機。 It has a cutting device which is arranged below the horizontal sealing device and cuts the horizontal sealing portion over the entire width in the lateral direction.
The facing surface of the anvil has a concave portion that divides a region in which the plurality of convex portions are formed in a direction intersecting the feeding direction of the tubular film.
The vertical filling and packaging machine according to any one of claims 1 to 3, wherein the cutting device cuts the horizontal seal portion in a strip shape using the regions on both sides divided by the concave portion as a cutting portion. 前記ホーンは２０〜４０ｋＨｚの周波数で振動する、請求項１から４のいずれか１項に記載の縦型充填包装機。 The vertical filling and packaging machine according to any one of claims 1 to 4, wherein the horn vibrates at a frequency of 20 to 40 kHz. 縦方向に送られ下端が閉じられ上端が開口したチューブ状フィルムの中に製品を投入する投入パイプと、
前記投入パイプの前記製品の出口の下方に配置され、前記チューブ状フィルムの前記製品が存在する部分を挟み込みつつ該チューブ状フィルムの下方への送りに伴って回転することで前記チューブ状フィルムに扁平部を形成する一対のシゴキローラと、
前記一対のシゴキローラの下方に配設され、前記チューブ状フィルムの前記扁平部の横方向全幅に亘って、前記チューブ状フィルムを構成する互いに対向するフィルム同士を超音波振動で溶着して横シール部を形成する横シール装置と、を備えた縦型充填包装機の前記横シール装置であって、
超音波振動子を内蔵し前記チューブ状フィルムの横方向に延びるホーンと、前記ホーンを受けるアンビルと、を備え、前記アンビルは前記チューブ状フィルムを間において前記ホーンと対向配置され、前記ホーンから離間する方向および前記ホーンに当接する方向に移動可能であり、
前記ホーンの前記アンビルとの対向面は平らな面であり、前記アンビルの前記ホーンとの対向面は線状に延びる複数の凸条部と、前記複数の凸条部で囲まれた複数の凹部と、を有し、前記凹部の底部は平面であり、前記凹部の前記底部と前記凹部の側面とは鈍角をなす、横シール装置。 An input pipe that feeds products in the vertical direction, the lower end is closed, and the upper end is open.
It is arranged below the outlet of the product of the input pipe, and is flattened to the tubular film by rotating with the downward feeding of the tubular film while sandwiching the portion of the tubular film in which the product exists. A pair of shigokirara that form a part,
A lateral seal portion which is disposed below the pair of shigoki rollers and welds films facing each other forming the tubular film over the entire width of the flat portion of the tubular film in the lateral direction by ultrasonic vibration. The horizontal sealing device of the vertical filling and packaging machine provided with the horizontal sealing device for forming the above.
A horn containing an ultrasonic oscillator and extending in the lateral direction of the tubular film and an anvil that receives the horn are provided, and the anvil is arranged so as to face the horn with the tubular film in between and separated from the horn. It is movable in the direction of the horn and the direction of contact with the horn.
The surface of the horn facing the anvil is a flat surface, and the surface of the anvil facing the horn is a plurality of linearly extending protrusions and a plurality of recesses surrounded by the plurality of protrusions. When having a bottom of the recess Ri plane der, it forms an obtuse angle with the bottom and side surfaces of the recess of the recess, the transverse sealing device. 前記複数の凸条部は格子状に形成されている、請求項６に記載の横シール装置。 The horizontal sealing device according to claim 6, wherein the plurality of convex portions are formed in a grid pattern. 前記凸条部の前記チューブ状フィルムを挟んで前記ホーンに当接させられる当接面は平坦な面である、請求項６または７に記載の横シール装置。 The lateral sealing device according to claim 6 or 7, wherein the contact surface that is brought into contact with the horn with the tubular film of the convex portion sandwiched is a flat surface. 前記ホーンは２０〜４０ｋＨｚの周波数で振動する、請求項６から８のいずれか１項に記載の横シール装置。 The lateral sealing device according to any one of claims 6 to 8, wherein the horn vibrates at a frequency of 20 to 40 kHz. 製品が充填された包装袋を製造する方法であって、
縦方向に送られ下端が閉じられ上端が開口したチューブ状フィルムの中に製品を投入する工程と、
前記チューブ状フィルムの前記製品が存在する部分を一対のローラで挟み込みつつ、該チューブ状フィルムを下方へ送ることで、前記製品が投入された前記チューブ状フィルムに扁平部を形成する工程と、
前記チューブ状フィルムの前記扁平部の横方向全幅に亘って、横シール装置によって、前記チューブ状フィルムを構成する互いに対向するフィルム同士を超音波振動で溶着して横シール部を形成する工程と、を含み、
前記横シール装置は、超音波振動子を内蔵し前記チューブ状フィルムの横方向に延びるホーンと、前記ホーンを受けるアンビルと、を備え、前記アンビルは前記チューブ状フィルムを間において前記ホーンと対向配置され、前記ホーンから離間する方向および前記ホーンに当接する方向に移動可能であり、
前記ホーンの前記アンビルとの対向面は平らな面であり、前記アンビルの前記ホーンとの対向面は線状に延びる複数の凸条部と、前記複数の凸条部で囲まれた複数の凹部と、を有し、前記凹部の底部は平面であり、前記凹部の前記底部と前記凹部の側面とは鈍角をなす、包装袋入り液体製品の製造方法。 A method of manufacturing a packaging bag filled with products.
The process of putting the product into a tubular film that is fed in the vertical direction, the lower end is closed, and the upper end is open.
A step of forming a flat portion in the tubular film into which the product is charged by feeding the tubular film downward while sandwiching the portion of the tubular film in which the product exists with a pair of rollers.
A step of forming a horizontal seal portion by welding the films constituting the tubular film to each other by ultrasonic vibration over the entire width of the flat portion of the tubular film in the lateral direction by a horizontal seal device. Including
The horizontal sealing device includes a horn containing an ultrasonic oscillator and extending in the lateral direction of the tubular film, and an anvil that receives the horn, and the anvil has the tubular film sandwiched between the horn and the horn. And can move in the direction away from the horn and in the direction of contacting the horn.
The surface of the horn facing the anvil is a flat surface, and the surface of the anvil facing the horn is a plurality of linearly extending protrusions and a plurality of recesses surrounded by the plurality of protrusions. When having a bottom of the recess Ri plane der, wherein the said bottom and side surfaces of the recess of the concave portion form an obtuse angle, the manufacturing method of the packaging bag containing liquid product.
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