JP4167416B2 - Heat sealing device in filling and packaging machine - Google Patents

Heat sealing device in filling and packaging machine Download PDF

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Publication number
JP4167416B2
JP4167416B2 JP2001301686A JP2001301686A JP4167416B2 JP 4167416 B2 JP4167416 B2 JP 4167416B2 JP 2001301686 A JP2001301686 A JP 2001301686A JP 2001301686 A JP2001301686 A JP 2001301686A JP 4167416 B2 JP4167416 B2 JP 4167416B2
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Japan
Prior art keywords
packaging
seal
filling
film
sealing
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Expired - Fee Related
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JP2001301686A
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Japanese (ja)
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JP2003104328A (en
Inventor
浩介 酒井
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Taisei Lamick Co Ltd
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Taisei Lamick Co Ltd
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Priority to JP2001301686A priority Critical patent/JP4167416B2/en
Publication of JP2003104328A publication Critical patent/JP2003104328A/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
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C65/02—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
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30—Electrical means
    • B29C65/305—Electrical means involving the use of cartridge heaters
    • 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
    • B29C66/345—Progressively making the joint, e.g. starting from the middle
    • B29C66/3452—Making complete joints by combining partial 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8242—Pneumatic or hydraulic drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83511—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums
    • B29C66/83513—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums cooperating jaws mounted on rollers, cylinders or drums and moving in a closed path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/843—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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—Packaging machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9241—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
    • B29C66/92451—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power using joining tools having different pressure zones or using several joining tools with different pressures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9261—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools
    • B29C66/92611—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools by controlling or regulating the gap between the joining tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping

Description

【０００１】
【発明の属する技術分野】
本発明は、ロール状に巻回されたフィルム巻反からフィルムを繰り出し案内し、その繰り出し案内されて連続的に移送されるフィルムを対向する一対の縦シールロールの外周面に設けられた縦シール部材と横シールロールの外周面にそれぞれ設けられた横シール部材とにより挟持してヒートシールしてなる充填包装機におけるヒートシール装置の改良構造に関するものである。
【０００２】
【従来の技術】
従来この種の包装装置として、たとえば液体、粘性のある物質などの被包装物である醤油やワサビあるいはマヨネーズなどを充填して密封する充填包装機が知られている。一般的にはその充填包装機として、その包装機の本体の側部に一対の保持枠が設けられ、この保持枠にフイルムを巻回したフィルム巻反が脱着交換可能に保持されており、前記機台の上部にフイルム案内機構およびフイルム折返し機構を配設し、前記機台の前面部に上側から縦シール機構、横シール機構、カッター機構が備えられ、巻反よりフイルムを引出し、前記フイルム案内機構を介して前記フイルム折返し機構に導出し、前記フイルム折返し機構に設けられたガイドによりフイルムを長手方向に二つ折りにして、前記縦シール機構に対向する一対の縦シールロールに設けられたそれぞれの縦シール部材によってフイルムの折返し端部同士を加圧しつつ加熱して縦シールを施しながら送り出し、この縦シールによりフイルムを筒状に形成し、前記横シール機構の対向する一対の横シールロールに設けられたそれぞれの横シール部材によってフイルムを加圧，加熱しながら横方向に横シールし、この横シールにより底部を形成し、これにより有底筒状に形成されたフイルム内に充填機構に設けた二つの充填ノズルによりたとえば醤油とワサビの二種類の被包装物をそれぞれ充填し、さらにフイルムが送られて再び前記横シール機構の横シールロールに設けた横シール部材によりフイルムの袋口側を横シールしてそれぞれの被包装物を封止し、この横シール箇所を前記カッター機構で切断することにより包装袋を得るものが知られている。
【０００３】
かかる充填包装機は、生産される包装袋の包装形態に応じてフイルムの厚みやフイルム幅、あるいはフイルムの材質が選定され、これに合わせてシール温度，シールスピード，充填量等の生産条件が決定されるものであり、これらの生産条件において良好なヒートシールを行うために前記一対の縦シールロールの縦シール部材によって筒状に包装フィルムを製袋し、次いで前記一対の横シールロールの横シール部材によってフイルムを挟み込んで、それを加圧すると共に加熱して、フイルムの内側に存在する液体や粘稠物質を上方あるいは下方へ追い出しながら（扱き出しながら）フイルムを溶融させ、その後硬化させることにより密封するように構成している。
【０００４】
またヒートシールに用いられるフイルムは数十ミクロンといった薄いものであり、この薄いフイルムを重ねあわせて加圧しつつヒートシールする際、フイルムに対する加圧力が不足する場合には、フイルムの溶け込み不良により未シール部が生じ、またフイルムに対する加圧力が高すぎることに起因して、フイルムが押し潰されてシール部分が薄くなりシール強度が低下する等のシール不良が発生するという虞がある。
【０００５】
このため一般的には、縦シール部材や横シール部材間の間隔合わせを正確に行なう種々の方法が用いられ、その一例として縦，横シールロールのクリアランス調整として、縦シール部材や横シール部材の対をなす各シールロールの一方を所定位置にて回転可能に支持し、他方のシールロール側をそれぞれ案内枠内でそれらの両端側を支持する軸受部材と共に一方のシールロール側に対して進退可能に案内枠に螺合させて、それぞれの軸受部材に当接するアジャスタボルトをマニュアル操作で回転させることによって、他方のシールロールの軸受部材をそれぞれのロール間に介装したスプリングのばね力に抗して、またはそのばね力に従って、一方のシールロールに対して変位せることにより所定の加圧力を加えながらヒートシールが行われるように構成したり、あるいは一方のシールロール側を包装装置の本体側に回転可能に設け、この一方のシールロール側に対して他方のシールロール側を案内ロッドなどを介してロールの押し圧を空圧で調整するロール押し圧機構を設けると共に、フィルムの厚さ寸法や幅寸法などに応じて間隙調整部材を介して各シールロール間（対向するシール部材間）のクリアランスを所定の寸法に設定することにより、前記ロール押し圧機構たとえば単動シリンダーにより縦，横シールロールの両端部を押し圧することによって縦シール箇所または横シール箇所が各シールロールのシール部材間に挟まれてフィルムが加圧されながら適正な状態にてヒートシールされるように構成している。
【０００６】
【発明が解決しようとする課題】
ところで前述したように、たとえば醤油とワサビといった粘性の異なる二種類の被包装物をそれぞれ充填しながら包装フィルムをヒートシールする場合、縦シールロールの縦シール部材によって２列に筒状に包装フィルムを製袋し、次いで２列に製袋された筒状の包装フィルム内にそれぞれ個別に醤油とワサビとを供給しつつ、対をなす横シールロールの横シール部材によって筒状の包装フイルムを挟み込んで、それを加圧すると共に加熱して、フイルムの内側に存在する比較的に粘性の低い液体状の流動性物質からなる醤油と粘性の高い半固形状の流動性物質からなるワサビなどの粘稠物質とをそれぞれ上下に扱き出しがらフイルムを溶融させ、その後硬化させることにより密封するように構成している。
【０００７】
このように、特に粘性の異なる被包装物を同時に同一の充填包装機によってヒートシールする場合、横シールロールの横シール部材によって加圧，加熱しながら醤油とワサビなどとをそれぞれ上下に扱き出しながらヒートシールした時に、粘性の異なる被包装物を同じ加圧力によって被包装物を扱き出そうとした場合、粘性の高い被包装物（ワサビ）にあっては被包装物を押し出しながらヒートシールするために高い押圧力を加える必要があり、時として包装フイルムに対する加圧力が不足とフイルムに未シール部が生じたり、また逆に同じ加圧力を横シールロールによって加えていた場合、比較的に粘性の低い被包装物（醤油）にあっては被包装物を押し出しながらヒートシールしたときに、フイルムに対する加圧力が高すぎることに起因して、フイルムが押し潰されてシール部分が薄くなりシール強度が低下する等のシール不良が発生するという問題がある。
【０００８】
そこで本発明では、特に粘性の異なる被包装物を同時に同一の充填包装機によってヒートシールする場合、横シール部材間の間隔調整（シール圧）を適正状態にして良好に行うことのできる充填包装機におけるヒートシール装置のシール圧調整機構を提供することを目的とするものである。
【０００９】
【課題を解決するための手段】
請求項１の発明では、長尺な包装フィルムを繰り出し案内し、その繰り出し案内されて連続的に移送される包装フィルムを縦シール機構に設けられた対向する一対の縦シールロールの縦シール部材により縦シールし、この縦シール箇所により包装フィルムを縦列方向に沿って複数の列に筒状に形成するとともに、この筒状に形成された包装フィルムを横シール機構に設けられた一対の横シールロールの横シール部材により横シールし、この横シール箇所によって包装袋の底部を形成し、この底部により有底筒状に形成された複数列からなる筒状の包装フィルム内にそれぞれ被包装物を充填し、さらに包装フィルムを送りつつ包装フィルムの袋口部側となる箇所を前記横シール機構の横シール部材により横シールして複数列の包装袋として連続包装してなる充填包装機において、前記一対の横シールロールの外周面にそれぞれ対向して配置されて設けられた横シール部材の間隙を、前記複数列からなる筒状の包装袋内に充填する前記被包装物の充填包装条件に応じてそれぞれ設定してなることを特徴とする充填包装機におけるヒートシール装置である。
【００１０】
また請求項２の発明では、請求項１において、前記一対の横シールロールの外周面にそれぞれ対向して配置されて設けられた横シール部材の間隙設定として、前記被包装物の充填包装条件に応じて、前記横シールロールに設けられた横シール部材の押し圧シール面の高さ寸法をそれぞれ段差を設けて形成してなることを特徴とする充填包装機におけるヒートシール装置である。
【００１１】
また請求項３の発明では、請求項１または請求項２において、前記横シールロールの外周面に前記横シール部材を着脱可能に取付固定するとともに、その横シール部材をその幅方向に沿って分割形成してなることを特徴とする充填包装機におけるヒートシール装置である。
【００１２】
また請求項４の発明では、請求項１から請求項３において、前記横シール部材の厚さ寸法をスペーサ部材を介して設定するとともに、そのスペーサ部材を介して前記横シール部材を前記横シールロールに取付固定してなることを特徴とする充填包装機におけるヒートシール装置である。
【００１３】
また請求項５の発明では、請求項４において、厚さ寸法の異なる複数種の前記スペーサ部材を準備し、前記被包装物の充填包装条件に応じてスペーサ部材を交換可能に設けてなることを特徴とする充填包装機におけるヒートシール装置である。
【００１４】
【発明の実施の形態】
請求項１の発明では、長尺な包装フィルムを繰り出し案内し、その繰り出し案内されて連続的に移送される包装フィルムを縦シール機構に設けられた対向する一対の縦シールロールの縦シール部材により縦シールし、この縦シール箇所により包装フィルムを縦列方向に沿って複数の列に筒状に形成するとともに、この筒状に形成された包装フィルムを横シール機構に設けられた一対の横シールロールの横シール部材により横シールし、この横シール箇所によって包装袋の底部を形成し、この底部により有底筒状に形成された複数列からなる筒状の包装フィルム内にそれぞれ被包装物を充填し、さらに包装フィルムを送りつつ包装フィルムの袋口部側となる箇所を前記横シール機構の横シール部材により横シールして複数列の包装袋として連続包装してなる充填包装機において、前記一対の横シールロールの外周面にそれぞれ対向して配置されて設けられた横シール部材の間隙を、前記複数列からなる筒状の包装袋内に充填する前記被包装物の充填包装条件に応じてそれぞれ設定してなることにより、被包装物の充填包装条件である被包装物の粘性が異なった場合であっても、横シール部材間の間隔調整（シール圧）を適正状態にして良好に行うことができ、すなわち前記一対の横シールロールの横シール部材によって包装フイルムを挟み込んで、それを加圧するとともに加熱して、包装フイルムの内側に存在する液体や粘稠物質を上方あるいは下方へ追い出しながら（扱き出しながら）包装フイルムを適正状態にして溶融させ、その後硬化させることにより包装袋の密封を良好に行うことができる。
【００１５】
請求項２の発明では、請求項１において、前記一対の横シールロールの外周面にそれぞれ対向して配置されて設けられた横シール部材の間隙設定として、前記被包装物の充填包装条件に応じて、前記横シールロールに設けられた横シール部材の押し圧シール面の高さ寸法をそれぞれ段差を設けて形成してなることにより、その段差による隙間間隔を所定の寸法に設定することができ、これにより適正圧にて横シールロールに設けられた横シール部材によって包装フィルムが加圧，加熱され、包装フィルムのヒートシール状態を良好に行うことができる。
【００１６】
請求項３の発明では、請求項１または請求項２において、前記横シールロールの外周面に前記横シール部材を着脱可能に取付固定するとともに、その横シール部材をその幅方向に沿って分割形成してなることにより、被包装物の充填包装条件である被包装物の粘性に合わせて、分割形成した前記横シール部材を適宜変更することが可能となり、シール圧を適正状態に合わせることが可能となる。
【００１７】
請求項４の発明では、請求項１から請求項３において、前記横シール部材の厚さ寸法をスペーサ部材を介して設定するとともに、そのスペーサ部材を介して前記横シール部材を前記横シールロールに取付固定してなることにより、簡単に隙間間隔を設定することができる。
【００１８】
また請求項５の発明では、請求項４において、厚さ寸法の異なる複数種の前記スペーサ部材を準備し、前記被包装物の充填包装条件に応じてスペーサ部材を交換可能に設けてなることにより、横シール部材による包装フィルムの加圧，加熱が適正な状態に行われ、包装袋のシール状態を良好とし得る。
【００１９】
【実施例】
以下、本発明の第１実施例である充填包装機の概略構成とその動作について、図１から図４を参照して説明する。
同図において、充填包装機の全体構造を説明すると、充填包装機の本体１には、装填軸２が設けられ、この装填軸２に包装用のフィルムＦをロール上に巻回したフィルム巻反Ｒが着脱交換可能に設けられている。また、充填包装機には、被包装物Ｗを密閉包装するために、フィルム案内機構３およびフィルム折返し機構４を配設し、縦シール機構５、横シール機構６、充填機構７、切断機構８が備えられており、縦シール機構５，横シール機構６は、それぞれヒートシール装置を構成するものである。
【００２０】
包装フィルムＦは、たとえばシール部対応箇所が透明なナイロンと低密度ポリエチレンとの積層体からなり、前記ロール状に巻かれたフィルム巻反ＲからフィルムＦの繰り出し機構となる縦シール機構５により引き出され、フィルム案内機構３を介してフィルム折返し機構４に導出され、フィルム折返し機構４に設けられた折返しガイドにより包装フィルムＦを長手方向に沿って二つ折りにされる。
【００２１】
縦シール機構５は、たとえばサーボモータからなる駆動手段Ｍ１によって回転可能に設けられ、対向する一対の縦シールロール５Ａの外周に沿って設けられた縦シール部材５Ｂによって、二つ折りにされた包装フィルムＦの各々折返し縁部と中間部と折返し端部同志（左右両縁部と中間部）とを縦方向にヒートシールして縦シール部ＦＨを形成するように構成している。これにより、前記縦シール部ＦＨによって包装フィルムＦの折返し縁部と中間部と折返し端部同志とによって２列に筒状に包装フィルムＦが製袋される。
【００２２】
また横シール機構６としては、たとえばサーボモータからなる駆動手段Ｍ２によって回転可能に設けられ、対向する一対の横シールロール６Ａに設けられた横シール部材６Ｂによって、包装フィルムＦを横方向にヒートシールして、包装袋Ｐとなる底部、即ち横シール部ＦＳを形成するように構成している。この場合、前記横シール部材６Ｂにより横方向に所定間隔を置いて横ヒートシールされて横シール部ＦＳが形成され、前記縦シール部ＦＨによって包装フィルムＦの折返し縁部と中間部と折返し端部同志とによって２列に筒状に包装フィルムＦが製袋されているため、結果として、横シール部ＦＳ箇所により左右並設状態に二つの包装袋Ｐとなる有底筒状の底部が形成され、これにより有底筒状に形成された包装フィルムＦ内に充填機構７の充填ノズル部７Ａ，７Ｂからたとえば醤油Ｗ１とワサビＷ２とによる２種類の被包装物Ｗが充填され、続いて包装フィルムＦを送り出した後に前記横シール機構６の横シール部材６Ｂにより包装フィルムＦの袋口部となる箇所を横ヒートシールし、この横ヒートシールによる横シール部ＦＳによって前記２種類の被包装物Ｗが封止され、次々と連包状態で包装袋Ｐを下方へと連続搬送されるように構成している。
【００２３】
また切断機構８は、図示しない対向する一対の刃体によって、上下方向に連包状態のフィルムＦの横シール部ＦＳの略中央部を切り離し切断し、包装袋Ｐをそれぞれ１つずつに切り離して搬出するようにしている。
【００２４】
ところでこの第１実施例においては、前述したように、たとえば醤油とワサビといった粘性の異なる二種類の被包装物Ｗをそれぞれ充填しながら包装フィルムＦをヒートシールする場合、縦シールロール５Ａの縦シール部材５Ｂによって２列に筒状に包装フィルムＦを製袋し、次いで２列に製袋された筒状の包装フィルムＦ内にそれぞれ個別に醤油Ｗ１とワサビＷ２とからなる被包装物Ｗを供給しつつ、対をなす横シールロール６Ａの横シール部材６Ｂによって筒状の包装フイルムＦを挟み込んで、それを加圧するとともに加熱して、包装フイルムＦの内側に存在する比較的に粘性の低い液体状の流動性物質からなる醤油Ｗ１（被包装物Ｗ）と粘性の比較的に高い半固形状の流動性物質からなるワサビＷ２（被包装物Ｗ）などの粘稠物質とをそれぞれ上下に扱き出しがらフイルムＦを溶融させ、その後硬化させることにより良好に密封するように構成する必要がある。
【００２５】
これを達成するため、この第１実施例では、図３，図４に示すように、横シール機構６は、外周に複数の横シール部材６Ｂを配設し、内部にヒータＨを配設するとともに、軸部を中心に回転可能な一対の横シールロール６Ａと、充填包装機の本体１に固定配設され、ベアリングなどを介して一方の横シールロール６Ａの軸部を回転可能に軸支する固定側軸受台６Ｃと、この固定側軸受台６Ｃに固定される案内ガイド６Ｄに沿って移動可能に設けられ、他方の横シールロール６Ａをベアリングを介して回転可能に軸支するスライド軸受台６Ｅと、このスライド軸受台６Ｅを固定側軸受台６Ｃ方向に押し付けるエアーシリンダからなるロール押圧部材６Ｆと、固定側軸受台６Ｃとスライド軸受台６Ｅとの間に介在し横シールロール６Ａを挟み込み包装フィルムＦへの押圧力を設定するシール間隔設定部材６Ｇと、を主体にして構成している。
【００２６】
また、前記ロール押圧部材６Ｆの作動によってスライド軸受け台６Ｅを固定側軸受台６Ｃ側へ押圧作動した際において、前記一対の横シールロール６Ａの外周面にそれぞれ対向して配置されて設けられた横シール部材６Ｂ間の間隙寸法Ｔ１，Ｔ２を、複数列（実施例においては２列）からなる筒状の包装袋Ｐ内に充填する前記被包装物Ｗ（醤油Ｗ１とワサビＷ２）の充填包装条件に応じてその２列に配置された包装袋Ｐの位置関係に対応してそれぞれ幅方向にて段差Ｄを設けて設定してなることにより、被包装物Ｗの充填包装条件である被包装物Ｗ（醤油Ｗ１とワサビＷ２）の粘性が異なった場合であっても、横シール部材６Ｂ間の間隙寸法Ｔ１，Ｔ２を所定寸法に設定することによって、包装フィルムＦの押圧力（シール圧）が適正状態となるように間隔調整を行うように構成している。
【００２７】
これにより、前記一対の横シールロール６Ａの横シール部材６Ｂによって包装フイルムＦを挟み込んで、それを加圧するとともに加熱して、包装フイルムＦの内側に存在する粘性の異なる醤油Ｗ１やワサビＷ２などを上方あるいは下方へ追い出しながら（扱き出しながら）包装フイルムＦを適正状態にして溶融させ、その後硬化させることができ包装袋Ｐの密封を良好に行うことができる。
【００２８】
また、前記充填包装機におけるヒートシール装置のシール圧調整機構の実施態様例として、たとえば図５に示すように、前記横シールロール６Ａの外周面に前記横シール部材６Ｂを着脱可能に取付固定するとともに、その横シール部材６Ｂをその幅方向に沿って分割形成してなることにより、被包装物Ｗの充填包装条件である被包装物Ｗの粘性に合わせて、分割形成した前記横シール部材６Ｂ，６Ｂの厚みを適宜変更することによってシール圧を適正状態に合わせることが可能となる。
【００２９】
また、別例として、たとえば図６に示すように、前記横シール部材６Ｂの厚さ寸法をスペーサ部材Ｓを介して設定するとともに、そのスペーサ部材Ｓを介して前記横シール部材６Ｂを前記横シールロール６Ａに取付固定してなることにより、簡単に隙間間隔を設定することができるとともに、厚さ寸法の異なる複数種の前記スペーサ部材Ｓを事前に準備し、前記被包装物Ｗの充填包装条件（粘性に合わせて）に応じてスペーサ部材Ｓを交換可能に設けてなることにより、横シール部材６Ｂによる包装フィルムの加圧，加熱が適正な状態に行われ、包装袋Ｐのシール状態を良好とし得る。
【００３０】
なお、本発明は上述した実施例に限定されるものでなく本発明の要旨の範囲内において種々の変形実施が可能であり、たとえば実施例においては、被包装物として醤油、ワサビなどを例にして説明したが、マヨネーズ、ケチャップあるいはゼリー状の内容物など粘性が異なるものとして種々あるため、それぞれの粘性に応じてシール圧を設定するように構成すればよいものである。また包装袋としては、ロール状に巻かれた長尺な包装フィルムを引き出し案内し、二つ折りに折り返した後、縦列方向に沿って２列に筒状フィルムを製袋し、その２列の筒状フィルム内に粘性の異なる被包装物を充填してヒートシールしていたが、二枚からなる包装フィルムを重ね合わせて引き出し案内し、その包装フィルムの両端縁とフィルムの中央部とを縦シール機構の三つのロール状の縦シール部材によって縦ヒートシールして２列に筒状に製袋した包装袋を成形するもの、あるいは左右からロール状に巻かれた長尺な包装フィルムを繰り出し、縦シール機構、横シール機構へと供給してそれぞれ独立した筒状の包装フィルム内に被包装物を充填し縦横シールすることによって包装袋を成形するもの、あるいは幅広なロール状に巻かれたフィルムを引き出し案内しつつフィルムの長手方向に沿って左右に分断し、その分断されたそれぞれのフィルムを半折り状態に引き回して縦横のシール機構へと供給してヒートシールするタイプなどにおいて本発明による充填包装機におけるヒートシール装置のシール圧調整機構を適用することにより、同様の効果を得ることができる。また、前述した実施例では四方シールによる包装袋を例にして説明したが、三方シールによる包装袋も同様に行うことができる。
【００３１】
また、被包装物の粘性に合わせて包装フィルムＦの押圧力をほぼ一定に保つように設定することを主眼としているが、フィルムＦの厚みや材質などによって極端に押圧力が異なるような場合には、スペーサ部材の厚みを段階的に比較的厚いものや、極薄い厚みのスペーサ部材を設けることにより補うことも可能となるものである。
【００３２】
【発明の効果】
以上詳述したように、請求項１の発明によれば、長尺な包装フィルムを繰り出し案内し、その繰り出し案内されて連続的に移送される包装フィルムを縦シール機構に設けられた対向する一対の縦シールロールの縦シール部材により縦シールし、この縦シール箇所により包装フィルムを縦列方向に沿って複数の列に筒状に形成するとともに、この筒状に形成された包装フィルムを横シール機構に設けられた一対の横シールロールの横シール部材により横シールし、この横シール箇所によって包装袋の底部を形成し、この底部により有底筒状に形成された複数列からなる筒状の包装フィルム内にそれぞれ被包装物を充填し、さらに包装フィルムを送りつつ包装フィルムの袋口部側となる箇所を前記横シール機構の横シール部材により横シールして複数列の包装袋として連続包装してなる充填包装機において、前記一対の横シールロールの外周面にそれぞれ対向して配置されて設けられた横シール部材の間隙を、前記複数列からなる筒状の包装袋内に充填する前記被包装物の充填包装条件に応じてそれぞれ設定してなることにより、被包装物の充填包装条件である被包装物の粘性が異なった場合であっても、横シール部材間の間隔調整（シール圧）を適正状態にして良好に行うことができ、すなわち前記一対の横シールロールの横シール部材によって包装フイルムを挟み込んで、それを加圧するとともに加熱して、包装フイルムの内側に存在する液体や粘稠物質を上方あるいは下方へ追い出しながら（扱き出しながら）包装フイルムを適正状態にして溶融させ、その後硬化させることにより包装袋の密封を良好に行うことができる。
【００３３】
また請求項２の発明では、請求項１において、前記一対の横シールロールの外周面にそれぞれ対向して配置されて設けられた横シール部材の間隙設定として、前記被包装物の充填包装条件に応じて、前記横シールロールに設けられた横シール部材の押し圧シール面の高さ寸法をそれぞれ段差を設けて形成してなることにより、その段差による隙間間隔を所定の寸法に設定することができ、これにより適正圧にて横シールロールに設けられた横シール部材によって包装フィルムが加圧，加熱され、包装フィルムのヒートシール状態を良好に行うことができる。
【００３４】
また請求項３の発明では、請求項１または請求項２において、前記横シールロールの外周面に前記横シール部材を着脱可能に取付固定するとともに、その横シール部材をその幅方向に沿って分割形成してなることにより、被包装物の充填包装条件である被包装物の粘性に合わせて、分割形成した前記横シール部材を適宜変更することが可能となり、シール圧を適正状態に合わせることが可能となる。
【００３５】
また請求項４の発明では、請求項１から請求項３において、前記横シール部材の厚さ寸法をスペーサ部材を介して設定するとともに、そのスペーサ部材を介して前記横シール部材を前記横シールロールに取付固定してなることにより、簡単に隙間間隔を設定することができるとともに、請求項５の発明では、請求項４において、厚さ寸法の異なる複数種の前記スペーサ部材を準備し、前記被包装物の充填包装条件に応じてスペーサ部材を交換可能に設けてなることにより、横シール部材による包装フィルムの加圧，加熱が適正な状態に行われ、包装袋のシール状態を良好とし得るものであり、また部品のバラツキや部品の組み付け精度あるいは包装フイルム自体にも公差（バラツキ）があったとしても、良好に微調整を行うことが可能となる。
【図面の簡単な説明】
【図１】図１は本発明の第１実施例の充填包装機の全体を示す正面図である。
【図２】図２は本発明の第１実施例である縦シール機構の概要を一部断面で示した平面図である。
【図３】図３は本発明の第１実施例である横シール機構の概要を一部断面で示した平面図である。
【図４】図４は本発明の第１実施例である横シール機構の概要を一部断面で示した側面図である。
【図５】図５は本発明の横シール機構の実施態様要例を一部断面で示した平面図である。
【図６】図６は本発明の横シール機構の他の実施態様要例を一部断面で示した平面図である。
【符号の説明】
１ 本体
５ 縦シール機構
５Ａ 縦シールロール
５Ｂ 縦シール部材
６ 横シール機構
６Ａ 横シールロール
６Ｂ 横シール部材
６Ｃ 固定側軸受台
６Ｄ 案内ガイド
６Ｅ スライド軸受台
６Ｆ ロール押圧部材
６Ｇ シール間隔設定部材
７ 充填機構
７Ａ 充填ノズル部
７Ｂ 充填ノズル部
８ 切断機構
Ｆ 包装フィルム
Ｈ ヒータ
Ｐ 包装袋
Ｒ 巻反フィルム
Ｓ スペーサ部材
Ｔ１ 間隙寸法
Ｔ２ 間隙寸法
Ｗ 被充填物[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vertical seal provided on the outer peripheral surface of a pair of vertical seal rolls that guides a film from a roll of film wound in a roll shape, and faces the film that is guided and continuously transferred. The present invention relates to an improved structure of a heat seal device in a filling and packaging machine that is sandwiched between a member and a lateral seal member provided on each outer peripheral surface of a lateral seal roll and heat-sealed.
[0002]
[Prior art]
Conventionally, as this type of packaging apparatus, for example, a filling and packaging machine that fills and seals soy sauce, wasabi, mayonnaise, or the like, which is an object to be packaged such as a liquid or a viscous substance, is known. Generally, as the filling and packaging machine, a pair of holding frames are provided on the side of the main body of the packaging machine, and a film roll obtained by winding a film on the holding frame is held so as to be detachable and replaceable. A film guide mechanism and a film folding mechanism are provided at the top of the machine base, and a vertical seal mechanism, a horizontal seal mechanism, and a cutter mechanism are provided on the front surface of the machine base from above, and the film is drawn out from the roll, and the film guide is provided. The film is led to the film folding mechanism through a mechanism, and the film is folded in half in the longitudinal direction by a guide provided in the film folding mechanism, and each of the pair of vertical seal rollers provided on the pair of vertical seal rolls facing the vertical seal mechanism is provided. The folded ends of the film are pressurized while being pressed by the vertical seal member, heated and sent while applying the vertical seal, and the film is formed into a cylindrical shape by this vertical seal The film is laterally sealed while being pressurized and heated by the respective transverse seal members provided on the pair of opposed transverse seal rolls of the transverse seal mechanism, and the bottom is formed by this transverse seal. For example, soy sauce and wasabi are each filled with two filling nozzles provided in the filling mechanism in the film formed in the bottom cylindrical shape, and further the film is sent to the horizontal seal of the horizontal sealing mechanism again. It is known to obtain a packaging bag by laterally sealing the bag opening side of the film by a lateral seal member provided on the roll, sealing each packaged article, and cutting the lateral seal portion with the cutter mechanism. Yes.
[0003]
In such a filling and packaging machine, film thickness, film width, or film material is selected according to the packaging form of the packaging bag to be produced, and production conditions such as seal temperature, seal speed, and filling amount are determined accordingly. In order to perform good heat sealing under these production conditions, a packaging film is formed into a cylindrical shape by the vertical sealing member of the pair of vertical sealing rolls, and then the horizontal sealing of the pair of horizontal sealing rolls The film is sandwiched by a member, pressurized and heated to melt the film and melt it while expelling the liquid or viscous material existing inside the film upward or downward, and then cured to seal. It is configured to do.
[0004]
Also, the film used for heat sealing is as thin as several tens of microns. When heat-sealing while applying pressure on the thin film, if the pressure on the film is insufficient, the film will not be sealed due to poor penetration of the film. There is a risk that a defective seal may occur, for example, because the film is crushed and the seal portion is thinned due to the pressure applied to the film being too high and the seal portion is thinned.
[0005]
For this reason, in general, various methods for accurately adjusting the interval between the vertical seal member and the horizontal seal member are used. For example, as a clearance adjustment for the vertical and horizontal seal rolls, One of the paired seal rolls is supported rotatably at a predetermined position, and the other seal roll side can be moved forward and backward with respect to one seal roll side together with a bearing member that supports both end sides of each in the guide frame. The guide bolt is screwed into the guide frame, and the adjuster bolt that contacts each bearing member is rotated manually to resist the spring force of the spring between the other seal roll bearing members. Or according to its spring force, heat sealing is performed while applying a predetermined pressure by displacing with respect to one seal roll. Or one seal roll side is rotatably provided on the main body side of the packaging device, and the other seal roll side is evacuated from the one seal roll side via a guide rod or the like. A roll pressing mechanism that adjusts with pressure is provided, and the clearance between each seal roll (between opposing seal members) is set to a predetermined dimension via a gap adjusting member according to the thickness dimension and width dimension of the film. By pressing the both end portions of the vertical and horizontal seal rolls with the roll pressing mechanism such as a single acting cylinder, the vertical seal portion or the horizontal seal portion is sandwiched between the seal members of the respective seal rolls to pressurize the film. However, it is configured to be heat sealed in an appropriate state.
[0006]
[Problems to be solved by the invention]
By the way, as described above, for example, when heat-sealing a packaging film while filling two kinds of articles to be packaged having different viscosities such as soy sauce and wasabi, the packaging films are formed in two rows by a vertical sealing member of a vertical sealing roll. A cylindrical packaging film is sandwiched between horizontal sealing members of a pair of horizontal sealing rolls, while making soy sauce and wasabi separately into a cylindrical packaging film formed in two rows. Viscous substances such as soy sauce made of liquid fluid material with relatively low viscosity existing inside the film and wasabi made of viscous semi-solid fluid material The film is melted and then hardened and then cured to be sealed.
[0007]
In this way, particularly when the objects to be packaged having different viscosities are heat-sealed by the same filling and packaging machine at the same time, the soy sauce and wasabi are handled up and down while being pressurized and heated by the horizontal sealing member of the horizontal sealing roll. When heat-sealed, if the packaging material with different viscosity is to be handled with the same pressure, the high-viscosity packaging material (wasabi) will heat-seal while extruding the packaging material. It is necessary to apply a high pressing force to the packaging film, and sometimes the sealing film is unsealable due to insufficient pressure on the packaging film. For low packaged items (soy sauce), the pressure applied to the film is too high when heat-sealing while extruding the packaged items Te, there is a problem that sealing failure occurs such that the seal strength becomes thin crushed and sealed portions film is lowered.
[0008]
Therefore, in the present invention, particularly when the objects to be packaged having different viscosities are heat-sealed by the same filling and packaging machine at the same time, the filling and packaging machine can be satisfactorily performed by adjusting the interval between the horizontal seal members (seal pressure) in an appropriate state. It is an object of the present invention to provide a seal pressure adjusting mechanism for a heat seal device.
[0009]
[Means for Solving the Problems]
In the invention of claim 1, a long packaging film is fed and guided, and the packaging film that is continuously guided and fed is fed by the vertical sealing members of a pair of opposing vertical sealing rolls provided in the vertical sealing mechanism. A pair of horizontal seal rolls that are vertically sealed and form a packaging film in a plurality of rows along the longitudinal direction by the longitudinal sealing portion, and the packaging film formed in the tubular shape is provided in a lateral sealing mechanism The horizontal sealing member forms a horizontal seal, the bottom portion of the packaging bag is formed by the horizontal seal portion, and the packaged articles are filled into cylindrical packaging films formed of a plurality of rows formed into a bottomed cylindrical shape by the bottom portion. Further, while the packaging film is being fed, the portion that becomes the bag mouth portion side of the packaging film is laterally sealed by the lateral sealing member of the lateral sealing mechanism to continuously form a plurality of rows of packaging bags. In the filling and packaging machine, the gap between the lateral seal members provided to be opposed to the outer peripheral surfaces of the pair of lateral seal rolls is filled into the cylindrical packaging bags composed of the plurality of rows. It is a heat-sealing device in a filling and packaging machine, which is set according to the filling and packaging conditions of the packaging object.
[0010]
According to a second aspect of the present invention, in the first aspect of the present invention, the gap between the outer seal surfaces of the pair of horizontal seal rolls arranged opposite to each other is set as a clearance setting condition of the packaged items. Accordingly, the heat sealing device in the filling and packaging machine is characterized in that the height dimension of the pressing pressure sealing surface of the horizontal sealing member provided on the horizontal sealing roll is formed with a step.
[0011]
According to a third aspect of the present invention, in the first or second aspect, the horizontal seal member is detachably attached and fixed to the outer peripheral surface of the horizontal seal roll, and the horizontal seal member is divided along the width direction. It is the heat seal apparatus in the filling packaging machine characterized by forming.
[0012]
According to a fourth aspect of the present invention, in the first to third aspects, the thickness dimension of the horizontal seal member is set via a spacer member, and the horizontal seal member is set to the horizontal seal roll via the spacer member. It is a heat-sealing device in a filling and packaging machine, wherein the heat-sealing device is fixedly attached to.
[0013]
According to a fifth aspect of the present invention, in the fourth aspect, a plurality of types of the spacer members having different thickness dimensions are prepared, and the spacer members are provided so as to be replaceable according to the filling and packaging conditions of the packaged object. It is the heat seal apparatus in the filling packaging machine characterized.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
In the invention of claim 1, a long packaging film is fed and guided, and the packaging film that is continuously guided and fed is fed by the vertical sealing members of a pair of opposing vertical sealing rolls provided in the vertical sealing mechanism. A pair of horizontal seal rolls that are vertically sealed and form a packaging film in a plurality of rows along the longitudinal direction by the longitudinal sealing portion, and the packaging film formed in the tubular shape is provided in a lateral sealing mechanism The horizontal sealing member forms a horizontal seal, the bottom portion of the packaging bag is formed by the horizontal seal portion, and the packaged articles are filled into cylindrical packaging films formed of a plurality of rows formed into a bottomed cylindrical shape by the bottom portion. Further, while the packaging film is being fed, the portion that becomes the bag mouth portion side of the packaging film is laterally sealed by the lateral sealing member of the lateral sealing mechanism to continuously form a plurality of rows of packaging bags. In the filling and packaging machine, the gap between the lateral seal members provided to be opposed to the outer peripheral surfaces of the pair of lateral seal rolls is filled into the cylindrical packaging bags composed of the plurality of rows. By setting each according to the filling and packaging conditions of the packaging object, even when the viscosity of the packaging object that is the filling and packaging condition of the packaging object is different, the interval adjustment between the horizontal seal members ( The sealing film can be satisfactorily performed in an appropriate state, that is, the packaging film is sandwiched by the transverse sealing members of the pair of transverse sealing rolls, pressurized and heated, and the liquid existing inside the packaging film The packaging film is properly melted while expelling upwards or downwards (while it is being handled) and then cured to ensure a good sealing of the packaging bag. It is possible.
[0015]
According to a second aspect of the present invention, in accordance with the first aspect of the present invention, according to the filling and packaging conditions of the article to be packaged as the gap setting of the horizontal seal member provided to be opposed to the outer peripheral surface of the pair of horizontal seal rolls, respectively. Thus, the height of the pressure seal surface of the horizontal seal member provided on the horizontal seal roll is formed by providing a step, so that the gap interval due to the step can be set to a predetermined size. As a result, the packaging film is pressurized and heated by the transverse seal member provided on the transverse seal roll at an appropriate pressure, and the packaging film can be heat sealed well.
[0016]
According to a third aspect of the present invention, in the first or second aspect, the horizontal seal member is detachably attached and fixed to the outer peripheral surface of the horizontal seal roll, and the horizontal seal member is divided and formed along the width direction thereof. As a result, it is possible to appropriately change the separately formed horizontal sealing member in accordance with the viscosity of the packaged object, which is the filling and packaging condition of the packaged object, and to adjust the sealing pressure to an appropriate state. It becomes.
[0017]
According to a fourth aspect of the present invention, in the first to third aspects, the thickness dimension of the horizontal seal member is set via a spacer member, and the horizontal seal member is set to the horizontal seal roll via the spacer member. By mounting and fixing, the gap interval can be set easily.
[0018]
According to the invention of claim 5, in claim 4, a plurality of types of the spacer members having different thickness dimensions are prepared, and the spacer members are provided so as to be replaceable in accordance with the filling and packaging conditions of the article to be packaged. The packaging film is pressed and heated by the transverse sealing member in an appropriate state, and the sealing state of the packaging bag can be made good.
[0019]
【Example】
The schematic configuration and operation of the filling and packaging machine according to the first embodiment of the present invention will be described below with reference to FIGS.
In this figure, the overall structure of the filling and packaging machine will be described. The main body 1 of the filling and packaging machine is provided with a loading shaft 2, and a film winding material in which a packaging film F is wound around the loading shaft 2 on a roll. R is detachably provided. The filling and packaging machine is provided with a film guide mechanism 3 and a film folding mechanism 4 for hermetically wrapping the article W to be packaged, and a vertical seal mechanism 5, a horizontal seal mechanism 6, a filling mechanism 7, and a cutting mechanism 8. The vertical sealing mechanism 5 and the horizontal sealing mechanism 6 each constitute a heat sealing device.
[0020]
The packaging film F is made of, for example, a laminate of transparent nylon and low-density polyethylene with a seal portion corresponding portion, and is pulled out by the vertical sealing mechanism 5 serving as a feeding mechanism of the film F from the film roll R wound in the roll shape. Then, it is led out to the film folding mechanism 4 through the film guiding mechanism 3, and the packaging film F is folded in two along the longitudinal direction by the folding guide provided in the film folding mechanism 4.
[0021]
The vertical seal mechanism 5 is provided so as to be rotatable by a driving means M1 made of, for example, a servo motor, and is wrapped in half by a vertical seal member 5B provided along the outer periphery of a pair of opposed vertical seal rolls 5A. Each of the F folding edges, the middle part, and the folding end parts (left and right edges and the middle part) are heat-sealed in the vertical direction to form a vertical seal part FH. Thereby, the packaging film F is bag-formed in two rows by the vertical seal portion FH by the folded edge portion, the intermediate portion, and the folded end portions of the packaging film F.
[0022]
Further, as the horizontal seal mechanism 6, for example, a drive means M2 composed of a servo motor is provided so as to be rotatable, and the packaging film F is heat-sealed in a horizontal direction by a horizontal seal member 6B provided on a pair of opposed horizontal seal rolls 6A. And it is comprised so that the bottom part used as the packaging bag P, ie, the horizontal seal | sticker part FS, may be formed. In this case, a transverse seal portion FS is formed by transverse heat sealing at a predetermined interval in the transverse direction by the transverse seal member 6B, and the folded edge portion, intermediate portion, and folded end portion of the packaging film F are formed by the longitudinal seal portion FH. Since the packaging film F is formed in two rows in a cylindrical shape by the other party, as a result, a bottomed cylindrical bottom portion that forms two packaging bags P in a side-by-side arrangement is formed by the lateral seal portion FS. In this way, the packaging film F formed in a bottomed cylindrical shape is filled with two kinds of articles W to be packaged by, for example, soy sauce W1 and wasabi W2 from the filling nozzle portions 7A and 7B of the filling mechanism 7, and then the packaging film After the F is sent out, the portion that becomes the bag mouth portion of the packaging film F is laterally heat sealed by the lateral sealing member 6B of the lateral sealing mechanism 6, and the front is sealed by the lateral sealing portion FS by this lateral heat sealing. 2 type of the package item W is sealed, and configured to be continuously conveyed downward packaging bag P in the continuous packaging state one after another.
[0023]
In addition, the cutting mechanism 8 cuts and cuts the substantially central portion of the horizontal seal portion FS of the film F in the up and down direction with a pair of opposed blades (not shown), and cuts the packaging bags P one by one. I am trying to carry it out.
[0024]
By the way, in this 1st Example, as mentioned above, when heat-sealing the packaging film F, respectively filling two types of to-be-packaged goods W, such as soy sauce and wasabi, respectively, the vertical seal of the vertical seal roll 5A The packaging film F is made into a cylindrical shape in two rows by the member 5B, and then the articles to be packaged W made of soy sauce W1 and wasabi W2 are individually supplied into the cylindrical packaging film F made in two rows. However, a relatively low-viscosity liquid existing inside the packaging film F by sandwiching the cylindrical packaging film F by the transverse seal member 6B of the pair of transverse seal rolls 6A, pressurizing and heating the tubular packaging film F Soy sauce W1 (packaged material W) made of a fluid material in the form of a viscous substance such as wasabi W2 (packaged material W) made of a semi-solid fluid material having a relatively high viscosity. Respectively to melt the film F reluctant out ironing vertically, there is a need to be configured to better seal by then cured.
[0025]
In order to achieve this, in the first embodiment, as shown in FIGS. 3 and 4, the horizontal seal mechanism 6 has a plurality of horizontal seal members 6 </ b> B arranged on the outer periphery and a heater H arranged inside. At the same time, a pair of horizontal seal rolls 6A that can rotate around the shaft portion and fixedly disposed on the body 1 of the filling and packaging machine, the shaft portion of one horizontal seal roll 6A can be rotatably supported via a bearing or the like. The fixed-side bearing base 6C to be moved, and a slide bearing base that is provided so as to be movable along a guide guide 6D fixed to the fixed-side bearing base 6C and rotatably supports the other lateral seal roll 6A via a bearing. 6E, a roll pressing member 6F formed of an air cylinder that presses the slide bearing base 6E in the direction of the fixed bearing base 6C, and the horizontal seal roll 6A interposed between the fixed bearing base 6C and the slide bearing base 6E. It is constituted by a sealing space setting member 6G for setting the pressing force of the instrumentation film F, the mainly.
[0026]
Further, when the slide bearing base 6E is pressed toward the fixed side bearing base 6C by the operation of the roll pressing member 6F, the lateral side provided so as to be opposed to the outer peripheral surfaces of the pair of horizontal seal rolls 6A. Filling and packaging conditions for the article to be packaged W (soy sauce W1 and wasabi W2) in which the gaps T1 and T2 between the seal members 6B are filled in a cylindrical packaging bag P composed of a plurality of rows (two rows in the embodiment). In accordance with the positional relationship of the packaging bags P arranged in the two rows, the step D is provided by setting a step D in the width direction, and the packaged item which is the filling and packaging condition of the packaged product W Even when the viscosity of W (soy sauce W1 and wasabi W2) is different, the pressing force (seal pressure) of the packaging film F is set by setting the gap dimensions T1, T2 between the lateral seal members 6B to predetermined dimensions. With proper condition It is configured to perform gap adjustment so that.
[0027]
Accordingly, the packaging film F is sandwiched between the pair of lateral sealing rolls 6A by pressurizing and heating the soy sauce W1 and wasabi W2 having different viscosities existing inside the packaging film F. The packaging film F can be melted in an appropriate state and then cured while being expelled upward or downward (while being handled), and the packaging bag P can be sealed well.
[0028]
Further, as an embodiment of the seal pressure adjusting mechanism of the heat seal device in the filling and packaging machine, for example, as shown in FIG. 5, the horizontal seal member 6B is detachably attached and fixed to the outer peripheral surface of the horizontal seal roll 6A. At the same time, the lateral seal member 6B is divided and formed along the width direction thereof, so that the lateral seal member 6B is formed separately according to the viscosity of the article W to be packaged, which is a filling and packaging condition of the article W to be packaged. , 6B can be adjusted to an appropriate state by appropriately changing the thickness of 6B.
[0029]
As another example, as shown in FIG. 6, for example, the thickness dimension of the horizontal seal member 6B is set via a spacer member S, and the horizontal seal member 6B is set to the horizontal seal via the spacer member S. By being fixedly attached to the roll 6A, the gap interval can be easily set, and a plurality of types of the spacer members S having different thickness dimensions are prepared in advance, and the filling and packaging conditions for the article to be packaged W By providing the spacer member S to be replaceable according to the viscosity, the packaging film P is pressed and heated by the lateral seal member 6B in an appropriate state, and the sealing state of the packaging bag P is good. It can be.
[0030]
The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the present invention. For example, in the embodiment, soy sauce, wasabi, etc. However, since there are various types of mayonnaise, ketchup or jelly-like contents having different viscosities, the seal pressure may be set according to the respective viscosities. Also, as a packaging bag, a long packaging film wound in a roll shape is drawn out and guided, folded in half, and then a cylindrical film is made in two rows along the longitudinal direction. The packaged film was packed with different objects to be packed and heat-sealed, but the two wrapping films were stacked and guided, and the edges of the wrapping film and the center of the film were vertically sealed. Forms a packaging bag that is formed into two rows of cylinders by vertical heat sealing with three roll-shaped vertical sealing members of the mechanism, or a long packaging film wound in a roll shape from the left and right. Supply to sealing mechanism and horizontal sealing mechanism and fill packaging material into independent cylindrical packaging films and seal them vertically and horizontally to form a packaging bag or roll into a wide roll According to the present invention, the film is divided into left and right along the longitudinal direction of the film while being drawn out and guided, and the divided films are drawn into a half-folded state, supplied to a vertical and horizontal sealing mechanism, and heat sealed. The same effect can be obtained by applying the seal pressure adjusting mechanism of the heat seal device in the filling and packaging machine. In the above-described embodiment, a packaging bag with a four-side seal has been described as an example. However, a packaging bag with a three-side seal can be similarly used.
[0031]
In addition, the main purpose is to set the pressing force of the packaging film F to be almost constant according to the viscosity of the packaged object. However, when the pressing force is extremely different depending on the thickness or material of the film F. Can be supplemented by providing a spacer member that is relatively thick in steps or by providing an extremely thin spacer member.
[0032]
【The invention's effect】
As described in detail above, according to the first aspect of the present invention, a pair of opposed packaging films that are provided with a longitudinal seal mechanism that guides a long packaging film and feeds the packaging film that is continuously guided and fed out. The vertical sealing member of the vertical sealing roll vertically seals, and the vertical sealing portion forms a packaging film in a plurality of rows along the column direction, and the packaging film formed in the cylindrical shape is horizontally sealed. A cylindrical packaging consisting of a plurality of rows formed into a bottomed cylindrical shape by forming a bottom portion of the packaging bag by the horizontal sealing portion and forming a bottom portion of the packaging bag by the horizontal sealing portion. Each of the packages is filled with an article to be packaged, and further, the packaging film is fed and the portion that becomes the bag mouth side of the packaging film is laterally sealed by the lateral sealing member of the lateral sealing mechanism. In a filling and packaging machine that is continuously packaged as several rows of packaging bags, a plurality of rows of cylindrical seals are formed with gaps between the transverse seal members provided to face the outer peripheral surfaces of the pair of transverse seal rolls. Even if the viscosity of the package, which is the filling and packaging condition of the package, is different by setting according to the filling and packaging conditions of the package to be filled in the packaging bag, the horizontal seal The spacing between the members (seal pressure) can be adjusted properly and can be satisfactorily performed. That is, the packaging film is sandwiched between the transverse sealing members of the pair of transverse sealing rolls, and the packaging film is pressurized and heated to form the packaging film. By expelling the liquid or viscous substance existing inside the container upward or downward (handling it out), the packaging film is brought into an appropriate state and melted and then cured. The sealing of the packaging bag can be carried out satisfactorily.
[0033]
According to a second aspect of the present invention, in the first aspect of the present invention, the gap between the outer seal surfaces of the pair of horizontal seal rolls arranged opposite to each other is set as a clearance setting condition of the packaged items. Accordingly, the height dimension of the pressing pressure sealing surface of the horizontal seal member provided on the horizontal seal roll is formed by providing a level difference, whereby the gap interval due to the level difference can be set to a predetermined dimension. Thus, the packaging film is pressurized and heated by the transverse seal member provided on the transverse seal roll with an appropriate pressure, so that the packaging film can be well sealed.
[0034]
According to a third aspect of the present invention, in the first or second aspect, the horizontal seal member is detachably attached and fixed to the outer peripheral surface of the horizontal seal roll, and the horizontal seal member is divided along the width direction. By forming it, it becomes possible to appropriately change the laterally formed transverse seal member in accordance with the viscosity of the packaged object, which is the filling and packaging condition of the packaged object, and the seal pressure can be adjusted to an appropriate state. It becomes possible.
[0035]
According to a fourth aspect of the present invention, in the first to third aspects, the thickness dimension of the horizontal seal member is set via a spacer member, and the horizontal seal member is set to the horizontal seal roll via the spacer member. The gap interval can be easily set by attaching and fixing to the plurality of spacer members according to the fifth aspect of the present invention. The spacer member can be exchanged according to the packing conditions of the package, so that the packaging film can be pressed and heated in an appropriate state by the transverse sealing member, and the sealing state of the packaging bag can be made good. In addition, even if there are tolerances (variations) in component variations, component assembly accuracy, or the packaging film itself, fine adjustment can be performed satisfactorily.
[Brief description of the drawings]
FIG. 1 is a front view showing an entire filling and packaging machine according to a first embodiment of the present invention.
FIG. 2 is a plan view showing, in partial cross section, an outline of a vertical seal mechanism according to a first embodiment of the present invention.
FIG. 3 is a plan view showing, in partial cross section, the outline of the lateral seal mechanism according to the first embodiment of the present invention.
FIG. 4 is a side view showing the outline of the horizontal seal mechanism according to the first embodiment of the present invention in a partial cross section.
FIG. 5 is a plan view showing, in partial cross section, an example of an embodiment of the lateral seal mechanism of the present invention.
FIG. 6 is a plan view showing, in partial cross section, an example of another embodiment of the lateral seal mechanism of the present invention.
[Explanation of symbols]
1 Body
5 Vertical seal mechanism
5A Vertical seal roll
5B Vertical seal member
6 Horizontal seal mechanism
6A Horizontal seal roll
6B Horizontal seal member
6C Fixed side bearing stand
6D Information Guide
6E slide bearing stand
6F roll pressing member
6G seal interval setting member
7 Filling mechanism
7A Filling nozzle
7B Filling nozzle
8 Cutting mechanism
F Packaging film
H heater
P Packaging bag
R winding film
S Spacer member
T1 gap size
T2 gap size
W Filling material

Claims (5)

長尺な包装フィルムを繰り出し案内し、その繰り出し案内されて連続的に移送される包装フィルムを縦シール機構に設けられた対向する一対の縦シールロールの縦シール部材により縦シールし、この縦シール箇所により包装フィルムを縦列方向に沿って複数の列に筒状に形成するとともに、この筒状に形成された包装フィルムを横シール機構に設けられた一対の横シールロールの横シール部材により横シールし、この横シール箇所によって包装袋の底部を形成し、この底部により有底筒状に形成された複数列からなる筒状の包装フィルム内にそれぞれ被包装物を充填し、さらに包装フィルムを送りつつ包装フィルムの袋口部側となる箇所を前記横シール機構の横シール部材により横シールして複数列の包装袋として連続包装してなる充填包装機において、前記一対の横シールロールの外周面にそれぞれ対向して配置されて設けられた横シール部材の間隙を、前記複数列からなる筒状の包装袋内に充填する前記被包装物の充填包装条件に応じてそれぞれ設定してなることを特徴とする充填包装機におけるヒートシール装置。A long wrapping film is fed out and guided, and the wrapping film continuously fed and guided is vertically sealed by a pair of opposing vertical sealing rolls provided in the vertical sealing mechanism, and this vertical sealing is performed. The packaging film is formed into a plurality of rows along the longitudinal direction in a cylindrical shape depending on the location, and the packaging film formed in this cylindrical shape is laterally sealed by a lateral sealing member of a pair of lateral sealing rolls provided in the lateral sealing mechanism Then, the bottom of the packaging bag is formed by the lateral seal portion, and the articles to be packaged are filled into the cylindrical packaging films formed of a plurality of rows formed into a bottomed cylindrical shape by the bottom, and the packaging film is further fed. While filling the packaging film, the portion on the bag mouth side is laterally sealed by the lateral sealing member of the lateral sealing mechanism and continuously packaged as a plurality of rows of packaging bags. In the above, the packaging of the article to be packaged for filling the gaps between the lateral seal members provided to be opposed to the outer peripheral surfaces of the pair of lateral seal rolls into the cylindrical packaging bags of the plurality of rows A heat sealing apparatus in a filling and packaging machine, wherein the heat sealing apparatus is set according to conditions. 前記一対の横シールロールの外周面にそれぞれ対向して配置されて設けられた横シール部材の間隙設定として、前記被包装物の充填包装条件に応じて、前記横シールロールに設けられた横シール部材の押し圧シール面の高さ寸法をそれぞれ段差を設けて形成してなることを特徴とする請求項１に記載の充填包装機におけるヒートシール装置。The horizontal seal provided on the horizontal seal roll according to the filling and packaging conditions of the packaged object as the gap setting of the horizontal seal member provided to be opposed to the outer peripheral surfaces of the pair of horizontal seal rolls. 2. The heat seal device in a filling and packaging machine according to claim 1, wherein the height dimension of the pressing pressure sealing surface of the member is formed by providing a step. 前記横シールロールの外周面に前記横シール部材を着脱可能に取付固定するとともに、その横シール部材をその幅方向に沿って分割形成してなることを特徴とする請求項１または請求項２に記載の充填包装機におけるヒートシール装置。The lateral seal member is detachably attached and fixed to the outer peripheral surface of the lateral seal roll, and the lateral seal member is divided and formed along the width direction. The heat sealing apparatus in the filling and packaging machine described. 前記横シール部材の厚さ寸法をスペーサ部材を介して設定するとともに、そのスペーサ部材を介して前記シール部材を前記横シールロールに取付固定してなることを特徴とする請求項１から請求項３に記載の充填包装機におけるヒートシール装置。The thickness dimension of the said horizontal seal member is set via a spacer member, The said seal member is attached and fixed to the said horizontal seal roll via the spacer member, The Claim 1 to Claim 3 characterized by the above-mentioned. The heat sealing apparatus in the filling and packaging machine described in 1. 厚さ寸法の異なる複数種の前記スペーサ部材を準備し、前記被包装物の充填包装条件に応じてスペーサ部材を交換可能に設けてなることを特徴とする請求項４に記載の充填包装機におけるヒートシール装置。The filling and packaging machine according to claim 4, wherein a plurality of types of the spacer members having different thickness dimensions are prepared, and the spacer members are replaceable according to the filling and packaging conditions of the packaged items. Heat seal device.
JP2001301686A 2001-09-28 2001-09-28 Heat sealing device in filling and packaging machine Expired - Fee Related JP4167416B2 (en)

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CN100404376C (en) * 2005-05-08 2008-07-23 上海交通大学 Pressure adjustable pressurizing and sealing device
WO2010021029A1 (en) * 2008-08-20 2010-02-25 オリヒロエンジニアリング株式会社 Packaging bag manufacturing device and packaging bag manufacturing method
JP5393257B2 (en) * 2009-05-25 2014-01-22 株式会社ファブリカトヤマ Horizontal sealing device, filling and packaging machine and aseptic filling machine
JP2011240958A (en) * 2010-05-18 2011-12-01 Sanko Kikai Kk Lateral sealing device of automatic multiple line stick packing machine and automatic multiple line stick packing machine
JP2013154919A (en) * 2012-01-31 2013-08-15 Sanko Kikai Kk System and method for producing multi-chamber packaging bag
JP6108861B2 (en) * 2013-02-14 2017-04-05 三光機械株式会社 3-way seal multi-row automatic packaging machine
JP6118706B2 (en) * 2013-10-11 2017-04-19 トキワ工業株式会社 Horizontal sealing device and packaging device provided with horizontal sealing device

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