JP2003341628A - Sealing apparatus - Google Patents

Sealing apparatus

Info

Publication number
JP2003341628A
JP2003341628A JP2002154631A JP2002154631A JP2003341628A JP 2003341628 A JP2003341628 A JP 2003341628A JP 2002154631 A JP2002154631 A JP 2002154631A JP 2002154631 A JP2002154631 A JP 2002154631A JP 2003341628 A JP2003341628 A JP 2003341628A
Authority
JP
Japan
Prior art keywords
cutting
sealing
packaging material
cutter
seal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2002154631A
Other languages
Japanese (ja)
Inventor
Tatsumi Motomura
辰巳 元村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nihon Tetra Pak KK
Original Assignee
Nihon Tetra Pak KK
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 Nihon Tetra Pak KK filed Critical Nihon Tetra Pak KK
Priority to JP2002154631A priority Critical patent/JP2003341628A/en
Publication of JP2003341628A publication Critical patent/JP2003341628A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • 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
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3604—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/3656—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint being a layer of a multilayer part to be joined, e.g. for joining plastic-metal laminates
    • 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
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3672—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint
    • B29C65/3676—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic
    • B29C65/368—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic with a polymer coating
    • 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
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/745—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool
    • B29C65/7451—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool the severing tool and the welding tool being movable with respect to one-another
    • 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
    • B29C66/40—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
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7373—Joining soiled or oxidised materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—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
    • B29C66/81427—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 ridge, e.g. for making a weakening line; comprising a single tooth
    • 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
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81457—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a block or layer of deformable material, e.g. sponge, foam, rubber
    • 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
    • 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
    • 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
    • B29C66/72327—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 natural products or their composites, not provided for in B29C66/72321 - B29C66/72324
    • B29C66/72328—Paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7162—Boxes, cartons, cases
    • B29L2031/7166—Cartons of the fruit juice or milk type, i.e. containers of polygonal cross sections formed by folding blanks into a tubular body with end-closing or contents-supporting elements, e.g. gable type containers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Package Closures (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Closing Of Containers (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sealing apparatus with high moldability in which there exists no possibility of scattering of a content liquid enclosed in a cutting site when a sealed part is cut by a cutter, and sealing properties of a container is held in the sealing apparatus with a filling system under a liquid level. <P>SOLUTION: The sealing apparatus 21 pinches packaging materials 12a and 12b between a heat seal jaw 22 and a cutting jaw 23 and applies a seal S in the transverse direction, and a pseudo-adhering region (cutting site) S2 under a condition where the content liquid is stored is cut by a cutter (cutting means) 24. As both ends of the apex part 24a of the cutter 24 are protruded to the cutting direction, the pseudo-adhering region S2 is cut out from the two ends and at the same time, the content liquid L enclosed in the pseudo-adhering region S2 is discharged from the two ends of the pseudo-adhering region S2, and then, the remaining site is cut by a cutting blade part for cutting. <P>COPYRIGHT: (C)2004,JPO

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は、牛乳、清涼飲料水
等の液体食品が充填された包装容器を製造する際におけ
る液面下充填システムのシール装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealing device for a sub-surface filling system when manufacturing a packaging container filled with liquid food such as milk and soft drink.

【０００２】[0002]

【従来の技術】従来、牛乳、清涼飲料等の液体食品が収
容されたブリック型の包装容器を製造する場合、ポリエ
チレン樹脂、アルミニウム、紙基材、及びポリエチレン
樹脂を積層することによって形成され積層材料から成る
包材を縦方向にシールを施してチューブ状にし、チュー
ブ状の包材に上方から液体食品を充填しながら、図６に
示すシール装置によって、順次包材を横方向に加熱・挟
持し、シールする（液面下充填システム）。その後、シ
ール部を切断して原型容器を形成し、この原型容器に成
形加工を施すことによって、図９に示すブリック型の包
装容器１０を製造している。2. Description of the Related Art Conventionally, in the case of manufacturing a brick type packaging container containing liquid food such as milk and soft drinks, a laminated material formed by laminating polyethylene resin, aluminum, a paper base material and polyethylene resin. The packaging material made of is longitudinally sealed into a tube shape, and while the tube-shaped packaging material is filled with the liquid food from above, the packaging material is sequentially heated and pinched laterally by the sealing device shown in FIG. , Seal (under liquid level filling system). After that, the seal portion is cut to form a prototype container, and the prototype container is subjected to molding processing to manufacture the brick type packaging container 10 shown in FIG. 9.

【０００３】図６に示すシール装置１は、互いに対向し
て配設されたヒートシールジョー２とカッティングジョ
ー３と、シール部を切断するカッタ４とから構成されて
いる。ヒートシールジョー２は、図６，７（ａ）,
（ｂ）に示すように、シールブロック５に埋設した一対
の加熱手段６，６を備えている。カッティングジョー３
は、間にカッタ４を配設した一対のカッティングレール
８，８と、加熱手段６，６との間に包材を挟持するドー
リー９，９とを備えている。A sealing device 1 shown in FIG. 6 comprises a heat sealing jaw 2 and a cutting jaw 3 which are arranged to face each other, and a cutter 4 which cuts a sealing portion. The heat seal jaw 2 is shown in FIGS.
As shown in (b), a pair of heating means 6, 6 embedded in the seal block 5 is provided. Cutting jaw 3
Is provided with a pair of cutting rails 8 and 8 having a cutter 4 disposed therebetween, and dollies 9 and 9 for sandwiching the packaging material between the heating means 6 and 6.

【０００４】包材を横方向にシールする際には、包材を
ヒートシールジョー２とカッティングジョー３との間に
挟み、加熱手段６，６によって包材のポリエチレン樹脂
層を加熱・溶着することによってシールする。そして、
シールを施す際、加熱手段６，６の近傍には、疑似的に
接着する疑似接着領域ができ、シール部の略中央に位置
する疑似接着領域部（切断部位）をカッタ４によって切
断することにより、個々の包装容器を形成する。When the packaging material is laterally sealed, the packaging material is sandwiched between the heat sealing jaw 2 and the cutting jaw 3, and the polyethylene resin layer of the packaging material is heated and welded by the heating means 6 and 6. Seal by. And
When the seal is applied, a pseudo-bonding area for pseudo-bonding is formed in the vicinity of the heating means 6 and 6, and the cutter 4 cuts the pseudo-bonding area (cutting site) located substantially in the center of the seal part. , Forming individual packaging containers.

【０００５】[0005]

【発明が解決しようとする課題】ところで、上記シール
装置では、液面下充填システムによって内容液を充填し
た筒状の包材から包装容器を製造するため、内容液を含
んだまま包材にシールを施す。また、包材をヒートシー
ルジョー２とカッティングジョー３によって加熱・挟持
する際、溝部７に対応している包材の切断部位には背圧
がかからないため、切断部位には、内容液が溜まること
がある。このため、個々の原型容器に切断する際、切断
部位に内容液を閉じこめたまま切断する場合がある。こ
の場合、切断部位は上下をヒートシールジョー２とカッ
ティングジョー３で押さえられているため、切断の際に
閉じこめられた内容液の内圧が高い。By the way, in the above-mentioned sealing device, since the packaging container is manufactured from the cylindrical packaging material filled with the content liquid by the subsurface filling system, the packaging material is sealed while containing the content liquid. Give. Further, when the packaging material is heated and sandwiched by the heat-sealing jaw 2 and the cutting jaw 3, back pressure is not applied to the cutting portion of the packaging material corresponding to the groove portion 7, so that the content liquid may be collected at the cutting portion. There is. For this reason, when cutting into individual prototype containers, there is a case where the content liquid is cut while being confined at the cutting site. In this case, since the upper and lower sides of the cut portion are pressed by the heat sealing jaw 2 and the cutting jaw 3, the internal pressure of the content liquid trapped during the cutting is high.

【０００６】そして、図８に示すように、カッタ４が平
刃であるため、カッタ４が切断部位に直角に当たること
により、内容液が閉じこめられた部分の内圧は更に上昇
し、カッタ４が切断部位を突き切る際に、切断部位が破
裂する。このため、切断部位に閉じこめられた内容液が
四方八方に、無秩序に飛び散り、その飛散した内容液が
原型容器や溝部７周辺を汚すため、容器を成形した後
に、成形容器１０や製造装置を洗浄する必要がある。As shown in FIG. 8, since the cutter 4 is a flat blade, when the cutter 4 hits the cutting site at a right angle, the internal pressure of the part where the content liquid is confined further rises and the cutter 4 cuts. When piercing the site, the cut site bursts. Therefore, the content liquid trapped in the cutting site is randomly scattered in all directions, and the scattered content liquid contaminates the prototype container and the vicinity of the groove portion 7. There is a need to.

【０００７】また、切断部位が破裂した場合、疑似接着
領域の損傷がひどく、成形容器１０のシール性が弱くな
る可能性がある。Further, when the cut portion ruptures, the pseudo adhesive region may be seriously damaged and the sealing property of the molding container 10 may be weakened.

【０００８】更に、飛散した内容液が、容器１０のフラ
ップ１０ａ,１０ｂが原型容器の側壁や底壁に設けたフ
ラップ１０ａ,１０ｂが固着する領域に付着した場合に
は、フラップ１０ａ,１０ｂの容器への固着力が減少す
るため、場合によってはフラップ１０ａ,１０ｂが側壁
や底壁に固着しない不良品が形成されることがある。Further, when the scattered liquid content adheres to the area where the flaps 10a, 10b of the container 10 are fixed to the flaps 10a, 10b provided on the side wall and the bottom wall of the prototype container, the containers of the flaps 10a, 10b are Since the adhesion force to the side walls is reduced, a defective product in which the flaps 10a and 10b do not adhere to the side wall or the bottom wall may be formed in some cases.

【０００９】そこで、本発明は、シール部をカッタで切
断する際、切断部位に閉じこめられた内容液が四方八方
に飛び散ることのないシール装置であって、切断部位の
破裂を抑えて疑似接着領域を確保することによって容器
のシール性を保持し、成形性の高いシール装置を提供す
ることを目的としている。Therefore, the present invention is a sealing device in which the content liquid trapped in the cutting portion does not scatter in all directions when the sealing portion is cut by a cutter, and the rupture of the cutting portion is suppressed and the pseudo-bonding area is suppressed. It is an object of the present invention to provide a sealing device having high moldability by maintaining the sealing property of the container by ensuring the above.

【００１０】[0010]

【課題を解決するための手段】上記目的を達成するた
め、請求項１記載の発明は、液体が充填された包材を加
熱・挟持して加熱密着部分を形成すると共にシールする
密封手段を２段に配置し、前記密封手段の間に配設され
た切断部に前記包材のシール部を切断する切断手段を備
えたシール装置であって、前記切断手段の先端部が、前
記シール部に閉じこめられた液体を先に排出させる排出
部位切断用刃部と、残りの部位を切断する切断刃部とを
備えていることを特徴としている。In order to achieve the above object, the invention according to claim 1 comprises a sealing means for heating and sandwiching a packaging material filled with a liquid to form a heating contact portion and sealing the sealing material. A sealing device provided with cutting means arranged in a step and cutting the sealing portion of the packaging material in a cutting portion arranged between the sealing means, wherein a tip portion of the cutting means is provided in the sealing portion. It is characterized in that it is provided with a discharge portion cutting blade portion that discharges the trapped liquid first and a cutting blade portion that cuts the remaining portion.

【００１１】このシール装置では、始めに排出部位切断
用刃部がシール部の一部を切りかき、シール部内に閉じ
こめられた液体を所定の方向に排出させた後に切断刃部
が残りのシール部を切断するため、閉じこめられた液体
の内圧の上昇を抑えることができる。また、シール部に
閉じこめられた液体を予め所定の方向に排出させるた
め、内容液が四方八方に飛散するのを防ぎ、シール装置
及び包材の汚染を防ぐことができる。更に、シール部の
破裂を抑えるため、疑似接着領域の損傷が減少し、容器
のシール性が保持され、容器から内容液が漏れる可能性
を減少させることができる。In this sealing device, the discharge portion cutting blade portion first cuts a part of the seal portion to discharge the liquid trapped in the seal portion in a predetermined direction, and then the cutting blade portion remains the remaining seal portion. As a result, the internal pressure of the trapped liquid can be suppressed from rising. In addition, since the liquid trapped in the seal portion is discharged in a predetermined direction in advance, it is possible to prevent the content liquid from scattering in all directions and prevent the sealing device and the packaging material from being contaminated. Further, since the rupture of the seal portion is suppressed, the damage of the pseudo adhesive region is reduced, the sealing property of the container is maintained, and the possibility that the content liquid leaks from the container can be reduced.

【００１２】請求項２記載の発明は、請求項１記載の発
明であって、前記排出部位切断用刃部の幅方向の少なく
とも一端が切断する方向に突出した形状であり、前記切
断刃部の中央部が切断方向に対して凹んだ形状に形成し
たことを特徴としている。The invention according to claim 2 is the invention according to claim 1, wherein at least one end in the width direction of the discharge portion cutting blade portion projects in the cutting direction, and the cutting blade portion It is characterized in that the central portion is formed in a concave shape with respect to the cutting direction.

【００１３】このシール装置では、請求項１記載の発明
の効果に加えて、切断手段の先端部の幅方向が他の部位
より突出していることにより、シール部に閉じこめられ
た液体をシール部の端から先に排出させるため、内容液
がシール装置及び包材の外方向に飛び去り、シール装置
及び包材の汚染を防ぐことができる。In this sealing device, in addition to the effect of the first aspect of the invention, since the width direction of the tip end portion of the cutting means projects from the other portion, the liquid trapped in the seal portion is sealed in the seal portion. Since the liquid is discharged from the end first, the content liquid flies off to the outside of the sealing device and the packaging material, so that the sealing device and the packaging material can be prevented from being contaminated.

【００１４】請求項３記載の発明は、請求項２記載の発
明であって、前記排出部位切断用刃部と前記切断刃部と
をなめらかに連続した弧状に形成したことを特徴として
いる。The invention according to claim 3 is the invention according to claim 2, characterized in that the discharge portion cutting blade portion and the cutting blade portion are formed in a smoothly continuous arc shape.

【００１５】このシール装置では、請求項２記載の発明
の効果に加えて、シール部の両端から徐々にシール部を
切り始めるため、閉じこめられた液体の内圧が一度に上
昇することがない。また、シール部の両端を切り欠くと
同時にシール部に閉じこめられた内容液を排出させるた
め、シール部の両端からシール装置及び包材の外方向に
向けてより正確に排出させることができ、シール装置及
び包材の汚染を防ぐことができる。In this sealing device, in addition to the effect of the invention as set forth in claim 2, since the sealing portion is gradually cut from both ends of the sealing portion, the internal pressure of the enclosed liquid does not rise at one time. In addition, since both ends of the seal part are cut out and the content liquid trapped in the seal part is discharged at the same time, it is possible to discharge more accurately from both ends of the seal part toward the outside of the sealing device and the packaging material. It is possible to prevent contamination of the device and the packaging material.

【００１６】請求項４記載の発明は、請求項３記載の発
明であって、前記排出部位切断用刃部と前記切断刃部と
を連続してＶ字状に形成したことを特徴としている。The invention according to claim 4 is the invention according to claim 3, characterized in that the discharge portion cutting blade portion and the cutting blade portion are continuously formed in a V-shape.

【００１７】このシール装置では、請求項３記載の発明
の効果に加えて、切断手段の先端部がＶ字形状であるた
め、包材のシール部を切断する際に良好な切断面を得る
ことができる。よって、確実にシール部の破裂を抑える
ことができる。In this sealing device, in addition to the effect of the third aspect of the invention, since the tip of the cutting means is V-shaped, a good cut surface can be obtained when cutting the sealing part of the packaging material. You can Therefore, the rupture of the seal portion can be surely suppressed.

【００１８】[0018]

【発明の実施の形態】以下、本発明に係るシール装置の
実施形態を図１〜図５により説明する。図１には本発明
に係るシール装置の断面図、図２には本発明に係るシー
ル装置のカッタ、図３（ａ）,（ｂ）,（ｃ）にはカッタ
が内容液を閉じ込んだ包材を切断する説明図、図４には
液体食品が充填された包装容器の製造装置である充填機
の概略図を、図５には本発明の実施形態における密封・
切断部を示す。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a sealing device according to the present invention will be described below with reference to FIGS. FIG. 1 is a cross-sectional view of the sealing device according to the present invention, FIG. 2 is a cutter of the sealing device according to the present invention, and FIGS. FIG. 4 is an explanatory view of cutting the packaging material, FIG. 4 is a schematic view of a filling machine that is a manufacturing apparatus of a packaging container filled with liquid food, and FIG.
A cutting part is shown.

【００１９】最初に、本発明に係るシール装置が適用さ
れた充填機について説明する。図４に示す充填機１１
は、牛乳、清涼飲料水等の液体食品が充填された包装容
器を製造する。この充填機１１は、リール１３の状態で
充填機１１にセットされた包材１２と、繰出機と多数の
ガイドと筒状形成機構と縦シール機構と（いずれも不図
示）、充填管１５と、図５に示す密封・切断部１６とを
備えている。First, a filling machine to which the sealing device according to the present invention is applied will be described. Filling machine 11 shown in FIG.
Manufactures packaging containers filled with liquid food products such as milk and soft drinks. This filling machine 11 includes a packaging material 12 set on the filling machine 11 in a reel 13 state, a feeding machine, a large number of guides, a tubular forming mechanism, a vertical sealing mechanism (all not shown), and a filling pipe 15. , And the sealing / cutting portion 16 shown in FIG.

【００２０】包材１２は、可撓性の積層材料から形成さ
れており、例えば、内側から順にポリエチレン樹脂、ア
ルミニウム、紙基材、及びポリエチレン樹脂を積層する
ことによって形成されている。包材１２には、後工程で
所定の形状に成形する際、屈曲を容易にするための折り
線が予め付けられている。The packaging material 12 is formed of a flexible laminated material, for example, by laminating polyethylene resin, aluminum, a paper base material, and polyethylene resin in this order from the inside. The packaging material 12 is preliminarily provided with a folding line for facilitating bending when the packaging material 12 is formed into a predetermined shape in a later step.

【００２１】充填機１１は、ロール状のリール１３から
引き出された包材１２を繰出機（不図示）によって繰り
出し、搬送方向に数箇所に配設しているガイド（不図
示）によって案内し、充填機１１の最上部まで導いた
後、略垂直下方に搬送する。そして下方に向けて包材１
２を搬送する間に、筒状形成機構（不図示）によって筒
状に湾曲し、縦シール装置（不図示）によって包材１２
を搬送方向に沿うように幅方向両端部を加熱溶着によっ
て縦シールし、円筒状の包材チューブ１４を形成する。The filling machine 11 delivers the packaging material 12 drawn from the roll-shaped reel 13 by a delivery machine (not shown), and guides it by guides (not shown) arranged at several points in the transport direction. After being guided to the uppermost part of the filling machine 11, it is conveyed substantially vertically downward. And the packing material 1 facing downward
While the sheet 2 is being conveyed, it is bent into a tubular shape by a tubular forming mechanism (not shown), and is wrapped by a vertical sealing device (not shown).
Both ends in the width direction are longitudinally sealed by heat welding so as to be along the conveying direction, and the cylindrical packaging material tube 14 is formed.

【００２２】次に、包材チューブ１４を下方に向けて搬
送する間に、図５に示すシール・切断部１６において、
ヒートシールジョー２２及びカッティングジョー２３に
よって包材チューブ１４を両側から挟持し、所定の間隔
ごとに横方向にシールを施し、シール・切断部１６の上
方から、充填管１５を介して包材チューブ１４の内部に
ジュースやお茶等の内容液Ｌを充填する。Next, while the packaging material tube 14 is conveyed downward, at the sealing / cutting portion 16 shown in FIG.
The packaging material tube 14 is sandwiched from both sides by the heat sealing jaws 22 and the cutting jaws 23, and laterally sealed at predetermined intervals, and the packaging material tube 14 is inserted from above the sealing / cutting portion 16 via the filling pipe 15. Fill the inside of the container with a liquid L such as juice or tea.

【００２３】更に、シール部Ｓよりも所定距離だけ上方
位置に、同様に横方向にシールを施し、上下のシール部
Ｓ,Ｓをそれぞれ略中央部でカッタ２４，２４によって
切断する。これにより、上下のシール部Ｓ,Ｓ間に内容
液Ｌを密封した枕状の原型容器１７を連続的に形成し、
成形機（不図示）へ連続的に搬送する。そして、予め形
成された折り目に沿って所定の形状に成形し、フラップ
１８ａを容器の側壁１７ａに、フラップ１８ｂを容器の
底壁１７ｂに固着することにより、一定量の内容液Ｌを
収容する包装容器１９が完成する。Further, a horizontal seal is similarly provided at a position above the seal portion S by a predetermined distance, and the upper and lower seal portions S, S are cut by the cutters 24, 24 at substantially central portions, respectively. Thereby, the pillow-shaped prototype container 17 in which the content liquid L is sealed between the upper and lower seal portions S, S is continuously formed,
It is continuously conveyed to a molding machine (not shown). Then, it is formed into a predetermined shape along the pre-formed fold line, and the flap 18a is fixed to the side wall 17a of the container, and the flap 18b is fixed to the bottom wall 17b of the container. The container 19 is completed.

【００２４】次に、図５に示すシール・切断部１６にお
ける、シール及び切断方法について説明する。Next, the sealing and cutting method in the sealing / cutting section 16 shown in FIG. 5 will be described.

【００２５】本発明では、処理速度を高めるために、充
填機１１は同じ構造を有するシール・切断ユニット２０
ａ,２０ｂを上下に二組備え、各シール・切断ユニット
２０ａ，２０ｂの工程を半サイクルずらして交互に動作
させている。各シール・切断ユニット２０ａ,２０ｂ
は、それぞれシール装置２１と成形フラップ３３を備え
ている。In the present invention, in order to increase the processing speed, the filling machine 11 has the sealing and cutting unit 20 having the same structure.
Two sets of a and 20b are provided on the upper and lower sides, and the steps of the sealing / cutting units 20a and 20b are shifted by a half cycle and alternately operated. Sealing / cutting units 20a, 20b
Each comprises a sealing device 21 and a shaping flap 33.

【００２６】図５において、二つのシール・切断ユニッ
ト２０ａ,２０ｂは、連続的に下方に搬送された包材チ
ューブ１４を内容液Ｌを収容した状態で所定の間隔ごと
に挟持し、横方向にシールを施し、帯状のシール部Ｓを
形成する。その後、シール部Ｓを略中央部で切断し、一
定量の内容液Ｌを収容する原型容器１７を形成する。そ
のために、シール・切断ユニット２０ａ,２０ｂはいず
れもヒートシールジョー２２，２２とカッティングジョ
ー２３，２３とカッタ（切断手段）２４，２４とを備え
ている。ヒートシールジョー２２，２２及びカッティン
グジョー２３，２３に対して揺動自在に支持されている
成形フラップ３３，３３は、それぞれ包材チューブ１４
を包囲して下方に案内し、包材チューブ１４を矩形に成
形する。In FIG. 5, the two sealing / cutting units 20a, 20b sandwich the packaging material tube 14 continuously conveyed downward in a state of containing the content liquid L at predetermined intervals, and horizontally. A seal is applied to form a band-shaped seal portion S. After that, the seal portion S is cut at a substantially central portion to form a prototype container 17 that contains a fixed amount of the content liquid L. Therefore, each of the sealing / cutting units 20a, 20b includes heat sealing jaws 22, 22, cutting jaws 23, 23, and cutters (cutting means) 24, 24. The molding flaps 33 and 33, which are swingably supported by the heat-sealing jaws 22 and 22 and the cutting jaws 23 and 23, respectively, are the packaging material tubes 14.
And is guided downward to form the packaging material tube 14 into a rectangular shape.

【００２７】次に、図１に示すシール装置２１について
説明する。図１に示すように、ヒートシールジョー２２
はカッティングジョー２３に対向する面にシールブロッ
ク２５を配設している。シールブロック２５は、一部を
シールブロック２５の端面２５ａに臨ませて埋設した一
対のインダクタ２６ａ,２６ｂを上下２段に配置してい
る。インダクタ２６ａ,２６ｂの間には、カッタ２４が
前進したときにカッタ２４の先端を収容する切断用溝部
２７を、インダクタ２６ａ,２６ｂの長手方向に沿って
凹設している。インダクタ２６ａ,２６ｂは、カッティ
ングジョー２３に向けて突出させて長手方向に形成され
た凸部２８ａ,２８ｂと、冷却用の冷却媒体流路２９ａ,
２９ｂとを備えている。また、カッティングジョー２３
の中央には、横方向に延びる扁平なカッタ２４をシール
ブロック２５に対して切断開始位置と切断終了位置との
間で進退自在に配設し、カッタ２４を前進させたときに
シール部Ｓの略中央部を切断する。Next, the sealing device 21 shown in FIG. 1 will be described. As shown in FIG. 1, the heat seal jaw 22
Has a seal block 25 on the surface facing the cutting jaw 23. The seal block 25 has a pair of inductors 26 a and 26 b, which are embedded so that a part of the seal block 25 faces the end surface 25 a of the seal block 25, and the inductors are arranged in upper and lower stages. A cutting groove 27 for accommodating the tip of the cutter 24 when the cutter 24 advances is provided between the inductors 26a and 26b along the longitudinal direction of the inductors 26a and 26b. The inductors 26a and 26b have protrusions 28a and 28b formed in the longitudinal direction so as to project toward the cutting jaw 23, and a cooling medium flow path 29a for cooling.
29b. Also, the cutting jaw 23
A flat cutter 24 extending in the lateral direction is provided at the center of the seal block 25 so as to be movable back and forth between the cutting start position and the cutting end position with respect to the seal block 25. Cut the approximate center.

【００２８】図５において、シール・切断ユニット２０
ａはシール・切断開始位置にあり、ヒートシールジョー
２２及びカッティングジョー２３を前進させ、包材チュ
ーブ１４を両側から挟持して対向面を互いに接触させ
る。そして、シール・切断ユニット２０ａは包材チュー
ブ１４を挟持したまま下方に移動し、その間にシール部
Ｓを接着する。In FIG. 5, the sealing / cutting unit 20 is shown.
a is at the sealing / cutting start position, the heat sealing jaw 22 and the cutting jaw 23 are moved forward, the packaging material tube 14 is sandwiched from both sides, and the opposing surfaces are brought into contact with each other. Then, the sealing / cutting unit 20a moves downward while sandwiching the packaging material tube 14 and adheres the sealing portion S therebetween.

【００２９】一方、シール・切断ユニット２０ｂは、図
５ではシール・切断終了位置にあり、シール・切断終了
位置の直前において、シール・切断ユニット２０ｂのカ
ッタ２４が前進し、シール部Ｓの略中央部を切断し、包
材チューブ１４から原型容器１７を分離する。次に、シ
ール・切断ユニット２０ｂのヒートシールジョー２２及
びカッティングジョー２３は、シール部Ｓの略中央部を
切断した後、後退し、旋回するように上昇し、シール・
切断開始位置に移動する。そして、シール・切断ユニッ
ト２０ｂがシール・切断開始位置に移動してヒートシー
ルジョー２２及びカッティングジョー２３を前進させ始
めた時には、シール・切断ユニット２０ａはシール・切
断終了位置にあり、カッタ２４が前進してシール部Ｓの
略中央部を切断し、包材チューブ１４から原型容器１７
を分離する。On the other hand, the sealing / cutting unit 20b is at the sealing / cutting end position in FIG. 5, and immediately before the sealing / cutting end position, the cutter 24 of the sealing / cutting unit 20b moves forward to substantially the center of the seal portion S. The part is cut, and the prototype container 17 is separated from the packaging material tube 14. Next, the heat-sealing jaw 22 and the cutting jaw 23 of the sealing / cutting unit 20b cut the substantially central portion of the seal portion S, and then move backward to ascend to rotate,
Move to the cutting start position. When the sealing / cutting unit 20b moves to the sealing / cutting start position and starts moving the heat sealing jaw 22 and the cutting jaw 23 forward, the sealing / cutting unit 20a is at the sealing / cutting end position and the cutter 24 moves forward. Then, the substantially central portion of the seal portion S is cut and the packaging material tube 14
To separate.

【００３０】なお、各シール・切断ユニット２０ａ,２
０ｂは、それぞれカッタ２４，２４の後端にシリンダ３
２，３２を配設し、シリンダ３２に作動媒体が供給され
ることによってカッタ２４を進退させ、また、ヒートシ
ールジョー２２, ２２及びカッティングジョー２３，２
３を互いに引寄せ、シール時の押圧力を大きくするよう
にしている。また、ヒートシールジョー２２，２２及び
カッティングジョー２３，２３との間の押圧力は、係合
解除手段（不図示）によって短時間で解除される。その
結果、シール・切断ユニット２０ａ, ２０ｂはシール・
切断終了位置に至る。Each sealing / cutting unit 20a, 2
0b is the cylinder 3 at the rear end of the cutter 24, 24, respectively.
2, 32 are provided, the working medium is supplied to the cylinder 32 to advance and retract the cutter 24, and the heat sealing jaws 22, 22 and the cutting jaws 23, 2
3 are attracted to each other to increase the pressing force at the time of sealing. Further, the pressing force between the heat sealing jaws 22 and 22 and the cutting jaws 23 and 23 is released in a short time by the engagement releasing means (not shown). As a result, the sealing / cutting units 20a, 20b
Reach the cutting end position.

【００３１】次に、図２にカッタ２４の平面図を示す。
カッタ２４は長尺状の先端部２４ａと切断方向に対して
反対側に突出した本体部２４ｂから形成されている。先
端部２４ａは、両端が排出部位切断用刃部２４ｃであ
り、中央部が切断刃部２４となっている。排出部位切断
用刃部２４ｃは切断方向に対して突出しており、切断刃
部２４ｄは中央部が切断方向に対して凹んだ形状であ
り、排出部位切断用刃部２４ｃ,２４ｃと切断刃部２４
ｄはなめらかに連続した弧状に形成されている。Next, FIG. 2 shows a plan view of the cutter 24.
The cutter 24 is formed of a long tip portion 24a and a main body portion 24b that projects to the opposite side with respect to the cutting direction. Both ends of the tip end portion 24a are blade portions 24c for cutting the discharge portion, and the center portion is the cutting blade portion 24. The discharge portion cutting blade portion 24c projects in the cutting direction, the cutting blade portion 24d has a shape in which the central portion is recessed in the cutting direction, and the discharge portion cutting blade portions 24c, 24c and the cutting blade portion 24 are formed.
d is formed in a smoothly continuous arc shape.

【００３２】このように構成されたシール装置におけ
る、シール及び切断方法について説明する。A method of sealing and cutting in the sealing device thus constructed will be described.

【００３３】図１に示すように、包材１２ａ,１２ｂを
横方向にシールする際、包材１２ａ,１２ｂをヒートシ
ールジョー２２とカッティングジョー２３との間に挟
む。そして、インダクタ２６ａ,２６ｂに高周波電圧を
印加し、誘導加熱によって包材１２ａ,１２ｂのアルミ
ニウム層を発熱させることにより、一対のアルミニウム
層で挟まれた一対のポリエチレン樹脂層を加熱し、包材
１２ａ,１２ｂを加熱・溶着によって横方向にシールす
る。その際、インダクタ２６ａ,２６ｂ近傍には、疑似
的に接着する疑似接着領域Ｓ１、Ｓ２、Ｓ３が形成す
る。そして、疑似接着領域（切断部位）Ｓ２をカッタ２
４によって切断することにより、個々の原型容器１７に
分離する。As shown in FIG. 1, when the packaging materials 12a and 12b are laterally sealed, the packaging materials 12a and 12b are sandwiched between the heat-sealing jaw 22 and the cutting jaw 23. Then, a high-frequency voltage is applied to the inductors 26a and 26b to heat the aluminum layers of the packaging materials 12a and 12b by induction heating, thereby heating the pair of polyethylene resin layers sandwiched by the pair of aluminum layers, and the packaging material 12a. , 12b are laterally sealed by heating and welding. At that time, pseudo adhesion regions S1, S2, and S3 that are pseudo adhesion are formed near the inductors 26a and 26b. Then, the pseudo adhesive area (cutting portion) S2 is cut by the cutter 2
Each prototype container 17 is separated by cutting with 4.

【００３４】この場合、液面下充填システムによって内
溶物Ｌを充填した包材チューブ１４から包装容器を製造
するため、包材１２ａ,１２ｂをヒートシールジョー２
２とカッティングジョー２３によって加熱・挟持する
際、切断用溝部２７に対応する部位には背圧がかからな
いため、疑似接着領域Ｓ２には、内溶液Ｌが溜まってい
る。そして、疑似接着領域Ｓ２を上下をヒートシールジ
ョー２２とカッティングジョー２３によって押さえてい
るため、疑似接着領域Ｓ２内の内圧が高い。In this case, since the packaging container is manufactured from the packaging tube 14 filled with the internal solution L by the subsurface filling system, the packaging materials 12a and 12b are heat-sealing jaws 2.
Since the back pressure is not applied to the portion corresponding to the cutting groove portion 27 when heating and sandwiching by the 2 and the cutting jaw 23, the internal solution L is accumulated in the pseudo adhesion region S2. Since the upper and lower sides of the pseudo adhesive area S2 are pressed by the heat sealing jaw 22 and the cutting jaw 23, the internal pressure in the pseudo adhesive area S2 is high.

【００３５】ここで、図３（ａ）,（ｂ）,（ｃ）に示す
ように、カッタ２４を疑似接着領域Ｓ２に向かって前進
させる（矢印Ａの方向）と、カッタ２４は弧状の形状で
あるため、カッタ２４の先端部２４ａは、両端が切断方
向に対して突出した排出部位切断用刃部２４ｃから徐々
に包材チューブ１４を切り始める。そして、カッタ２４
を包材チューブ１４の疑似接着領域Ｓ２の両端から切り
欠くと同時に、疑似接着領域Ｓ２に閉じこめられた内容
液Ｌを包材チューブ１４の両端から矢印Ｂ方向に排出さ
せ、内容液Ｌを両端から排出させた後に、残りの中央部
を切断刃部２４ｄにより切断する。Here, as shown in FIGS. 3A, 3B, and 3C, when the cutter 24 is advanced toward the pseudo adhesive area S2 (direction of arrow A), the cutter 24 has an arc shape. Therefore, the tip end portion 24a of the cutter 24 gradually starts to cut the packaging material tube 14 from the discharge portion cutting blade portion 24c whose both ends project in the cutting direction. And the cutter 24
Is cut out from both ends of the pseudo adhesive region S2 of the packaging material tube 14, and at the same time, the content liquid L confined in the pseudo adhesive region S2 is discharged from both ends of the packaging material tube 14 in the direction of arrow B, and the content liquid L is discharged from both ends. After discharging, the remaining central portion is cut by the cutting blade portion 24d.

【００３６】このように切断することにより、疑似接着
領域Ｓ２の内部に閉じこめられた内容液Ｌの内圧が一度
に上昇することがない。また、疑似接着領域Ｓ２に閉じ
こめられた内容液Ｌを予め両端から正確に排出させるた
め、内容液Ｌがシール装置２１及び包材チューブ１４の
外方向に飛び去り、シール装置２１及び包材チューブ１
４の汚染を防ぐことができる。また、疑似接着領域Ｓ２
の内圧の上昇が穏やかなことから、疑似接着領域Ｓ２の
破裂を抑えることができるため、容器のシール性が保持
され、内容液Ｌの漏れる可能性が減少する。By cutting in this way, the internal pressure of the content liquid L trapped inside the pseudo adhesive region S2 does not rise at one time. In addition, since the content liquid L trapped in the pseudo-adhesive region S2 is accurately discharged in advance from both ends, the content liquid L flies off to the outside of the sealing device 21 and the packaging material tube 14, and the sealing device 21 and the packaging material tube 1
4. Contamination of 4 can be prevented. Also, the pseudo adhesive area S2
Since the increase in the internal pressure of (2) is gentle, the rupture of the pseudo-adhesion region S2 can be suppressed, so that the sealing property of the container is maintained and the possibility that the content liquid L leaks is reduced.

【００３７】また、切断手段の先端部をＶ字形状にした
場合、疑似接着領域Ｓ２を切断する際に良好な切断面を
得ることができる。よって、確実に疑似接着領域Ｓ２の
破裂を抑えることができる。When the tip of the cutting means is V-shaped, a good cut surface can be obtained when cutting the pseudo adhesive area S2. Therefore, the rupture of the pseudo adhesive area S2 can be surely suppressed.

【００３８】なお、本実施形態では、加熱・溶着する方
法として、インダクタによる誘導加熱を採用した例を示
したが、インダクタの形状は凸部を持つ形状に限らず、
平面上を持つ形状でも良い。また、誘導加熱の他に、超
音波加熱や抵抗熱を使用することも可能である。また、
カッタ先端部の形状は、先に内溶物を排出させる形状で
あれば、例えば、斜め状の刃や中央部が突出した錐状の
形状でも良い。In the present embodiment, an example in which induction heating by an inductor is adopted as the heating / welding method has been shown, but the shape of the inductor is not limited to the shape having a convex portion,
A shape having a plane may be used. In addition to induction heating, ultrasonic heating or resistance heating can be used. Also,
The shape of the tip of the cutter may be, for example, an oblique blade or a conical shape with a protruding central portion, as long as the inner melt is discharged first.

【００３９】[0039]

【発明の効果】以上説明したように、請求項１記載の発
明によれば、始めにシール部の一部を切りかいて閉じこ
められた液体を所定の方向に排出させた後に残りのシー
ル部を切断するするため、シール部に閉じこめられた液
体の内圧の上昇を抑えることができる。また、シール部
に閉じこめられた液体を予め所定の方向に排出させるた
め、内容液が四方八方へ飛散することを防ぎ、シール装
置及び包材の汚染を防ぐことができる。更に、シール部
の破裂を抑えるため、疑似接着領域の損傷が減少し、容
器のシール性が保持され、内容液の漏れる可能性が減少
させることができる。As described above, according to the first aspect of the present invention, first, a part of the seal portion is cut out and the confined liquid is discharged in a predetermined direction, and then the remaining seal portion is removed. Since the cutting is performed, it is possible to suppress an increase in the internal pressure of the liquid trapped in the seal portion. Further, since the liquid trapped in the seal portion is discharged in a predetermined direction in advance, it is possible to prevent the content liquid from scattering in all directions and prevent the sealing device and the packaging material from being contaminated. Further, since the rupture of the seal portion is suppressed, the damage of the pseudo adhesive area is reduced, the sealing property of the container is maintained, and the possibility that the content liquid leaks can be reduced.

【００４０】請求項２記載の発明によれば、切断手段の
先端部の幅方向が他の部位より突出していることによ
り、始めにシール部の一部を切りかいて閉じこめられた
液体を排出させた後に残りのシール部を切断するするた
め、内容液がシール装置及び包材の外方向に飛び去り、
シール装置及び包材の汚染を防ぐことができる。According to the second aspect of the present invention, since the width direction of the tip end portion of the cutting means projects from the other portion, first, a part of the seal portion is cut off to discharge the confined liquid. After cutting, the remaining seal part is cut off, so the content liquid flies off to the outside of the sealing device and packaging material,
Contamination of the sealing device and the packaging material can be prevented.

【００４１】請求項３記載の発明によれば、シール部の
両端から徐々にシール部を切り始めるため、閉じこめら
れた液体の内圧が一度に上昇することがない。また、シ
ール部の両端を切り欠くと同時にシール部に閉じこめら
れた液体を外方向に排出させるため、シール部の両端か
らシール装置及び包材の外方向に向けて、内容液をより
正確に排出させることができ、シール装置及び包材が汚
染するのを防ぐことができる。According to the third aspect of the invention, since the seal portion is gradually cut from both ends of the seal portion, the internal pressure of the enclosed liquid does not rise at one time. Also, since both ends of the seal part are cut out and the liquid trapped in the seal part is discharged outward, the content liquid is discharged more accurately from both ends of the seal part toward the outside of the sealing device and packaging material. Therefore, the sealing device and the packaging material can be prevented from being contaminated.

【００４２】請求項４の発明によれば、切断手段の先端
部がＶ字形状であるため、包材のシール部を切断する際
に良好な切断面を得ることができる。よって、確実にシ
ール部の破裂を抑えることができる。According to the invention of claim 4, since the tip of the cutting means is V-shaped, a good cut surface can be obtained when cutting the sealing portion of the packaging material. Therefore, the rupture of the seal portion can be surely suppressed.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明に係るシール装置の断面図である。FIG. 1 is a sectional view of a sealing device according to the present invention.

【図２】カッタの平面図である。FIG. 2 is a plan view of a cutter.

【図３】（ａ）はカッタが内容液を閉じ込んだ包材を切
断する前の説明図、（ｂ）は、切断開始時の説明図
（ｃ）は切断中の説明図である。FIG. 3A is an explanatory diagram before the cutter cuts the packaging material in which the content liquid is closed, FIG. 3B is an explanatory diagram at the start of cutting, and FIG. 3C is an explanatory diagram during cutting.

【図４】充填機を示す概略図である。FIG. 4 is a schematic view showing a filling machine.

【図５】密封・切断部の断面図である。FIG. 5 is a sectional view of a sealing / cutting portion.

【図６】従来のシール装置を示す断面図である。FIG. 6 is a cross-sectional view showing a conventional sealing device.

【図７】（ａ）は従来のヒートシールブロックを示す正
面図である。（ｂ）は従来のヒートシールブロックを示
す断面図である。FIG. 7A is a front view showing a conventional heat seal block. (B) is sectional drawing which shows the conventional heat seal block.

【図８】（ａ）は従来のカッタを示す平面図である。
（ｂ）は従来のカッタを示す側面図である。FIG. 8A is a plan view showing a conventional cutter.
(B) is a side view showing a conventional cutter.

【図９】完成した包装容器を示す斜視図である。FIG. 9 is a perspective view showing a completed packaging container.

【符号の説明】[Explanation of symbols]

１２ａ,１２ｂ 包材 ２１ シール装置 ２２ ヒートシールジョー ２３ カッティングジョー ２４ カッタ（切断手段） ２４ａ 先端部 Ｓ シール部 Ｓ２ 疑似接着領域（切断部位） Ｌ 内容液 12a, 12b packaging material 21 Sealing device 22 heat seal jaws 23 Cutting Joe 24 cutter (cutting means) 24a tip S seal part S2 Pseudo adhesion area (cutting site) L content liquid

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｂ６５Ｂ 9/10 Ｂ６５Ｂ 9/10 Ｆターム(参考） 3E049 AA02 BA01 DB01 DB05 3E050 AA08 AB02 AB08 BA01 DC01 DD03 DF01 FA01 FB01 FB07 GB06 GC02 3E075 AA28 BA66 BB22 CA02 DB03 DB12 DB27 DD14 GA02 GA04 3E094 AA11 BA02 CA03 CA06 CA22 CA24 DA08 EA03 FA14 HA08 4F211 AH54 TA02 TC17 TD11 TN04 TW23 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) B65B 9/10 B65B 9/10 F term (reference) 3E049 AA02 BA01 DB01 DB05 3E050 AA08 AB02 AB08 BA01 DC01 DD03 DF01 FA01 FB01 FB07 GB06 GC02 3E075 AA28 BA66 BB22 CA02 DB03 DB12 DB27 DD14 GA02 GA04 3E094 AA11 BA02 CA03 CA06 CA22 CA24 DA08 EA03 FA14 HA08 4F211 AH54 TA02 TC17 TD11 TN04 TW23

Claims (4)

【特許請求の範囲】[Claims] 【請求項１】 液体が充填された包材を加熱・挟持して
加熱密着部分を形成すると共にシールする密封手段を２
段に配置し、前記密封手段の間に配設された切断部に前
記包材のシール部を切断する切断手段を備えたシール装
置であって、前記切断手段の先端部が、前記シール部に
閉じこめられた液体を先に排出させる排出部位切断用刃
部と、残りの部位を切断する切断刃部とを備えているこ
とを特徴とするシール装置。1. A sealing means for heating and sandwiching a packaging material filled with a liquid to form a heating contact portion and sealing the sealing material.
A sealing device provided with cutting means arranged in a step and cutting the sealing portion of the packaging material in a cutting portion arranged between the sealing means, wherein a tip portion of the cutting means is provided in the sealing portion. A sealing device comprising: a discharge portion cutting blade portion that discharges the enclosed liquid first; and a cutting blade portion that cuts the remaining portion. 【請求項２】 請求項１記載の発明であって、前記排出
部位切断用刃部の幅方向の少なくとも一端が切断する方
向に突出した形状であり、前記切断刃部の中央部が切断
方向に対して凹んだ形状に形成したことを特徴とするシ
ール装置。2. The invention according to claim 1, wherein at least one end of the discharge site cutting blade in the width direction is projected in the cutting direction, and the central portion of the cutting blade is in the cutting direction. A sealing device characterized by being formed in a concave shape. 【請求項３】 請求項２記載の発明であって、前記排出
部位切断用刃部と前記切断刃部とをなめらかに連続した
弧状に形成したことを特徴とするシール装置。3. The seal device according to claim 2, wherein the discharge portion cutting blade portion and the cutting blade portion are formed in a smoothly continuous arc shape. 【請求項４】 請求項３記載の発明であって、前記排出
部位切断用刃部と前記切断刃部とを連続してＶ字状に形
成したことを特徴とするシール装置。4. The sealing device according to claim 3, wherein the discharge portion cutting blade portion and the cutting blade portion are continuously formed in a V shape.
JP2002154631A 2002-05-28 2002-05-28 Sealing apparatus Pending JP2003341628A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002154631A JP2003341628A (en) 2002-05-28 2002-05-28 Sealing apparatus

Publications (1)

Publication Number Publication Date
JP2003341628A true JP2003341628A (en) 2003-12-03

Family

ID=29771384

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Link
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008515734A (en) * 2004-10-12 2008-05-15 ボスティク エス．アー． Apparatus and method for packaging a coated hot melt adhesive product in the form of a block
JP2010531282A (en) * 2007-06-28 2010-09-24 テトラ ラバル ホールデイングス エ フイナンス ソシエテ アノニム Induction sealing device for heat-sealing package material for manufacturing hermetically sealed package for food
JP2011051617A (en) * 2009-08-31 2011-03-17 Nihon Tetra Pak Kk Packaging and filling apparatus
WO2015040976A1 (en) * 2013-09-19 2015-03-26 株式会社イシダ Bag making and packaging machine
JP2016514631A (en) * 2013-03-20 2016-05-23 テトラ・ラヴァル・ホールディングス・アンド・ファイナンス・ソシエテ・アノニムＴｅｔｒａ Ｌａｖａｌ Ｈｏｌｄｉｎｇｓ ＆ Ｆｉｎａｎｃｅ Ｓ．Ａ． Ceiling bar
JP2017526550A (en) * 2014-12-30 2017-09-14 エスアイジー テクノロジー アーゲー Apparatus and method for induction heating of a packaging sleeve

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008515734A (en) * 2004-10-12 2008-05-15 ボスティク エス．アー． Apparatus and method for packaging a coated hot melt adhesive product in the form of a block
JP2010531282A (en) * 2007-06-28 2010-09-24 テトラ ラバル ホールデイングス エ フイナンス ソシエテ アノニム Induction sealing device for heat-sealing package material for manufacturing hermetically sealed package for food
JP2011051617A (en) * 2009-08-31 2011-03-17 Nihon Tetra Pak Kk Packaging and filling apparatus
JP2016514631A (en) * 2013-03-20 2016-05-23 テトラ・ラヴァル・ホールディングス・アンド・ファイナンス・ソシエテ・アノニムＴｅｔｒａ Ｌａｖａｌ Ｈｏｌｄｉｎｇｓ ＆ Ｆｉｎａｎｃｅ Ｓ．Ａ． Ceiling bar
US10293529B2 (en) 2013-03-20 2019-05-21 Tetra Laval Holdings & Finance S.A. Sealing bar
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US9434494B2 (en) 2013-09-19 2016-09-06 Ishida Co., Ltd. Bag making and packaging machine
JP2017526550A (en) * 2014-12-30 2017-09-14 エスアイジー テクノロジー アーゲー Apparatus and method for induction heating of a packaging sleeve
US10562236B2 (en) 2014-12-30 2020-02-18 Sig Technology Ag Device and method for inductively heating package sleeves

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