JP2004331135A - Bag packaging machine - Google Patents

Bag packaging machine Download PDF

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Publication number
JP2004331135A
JP2004331135A JP2003127604A JP2003127604A JP2004331135A JP 2004331135 A JP2004331135 A JP 2004331135A JP 2003127604 A JP2003127604 A JP 2003127604A JP 2003127604 A JP2003127604 A JP 2003127604A JP 2004331135 A JP2004331135 A JP 2004331135A
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JP
Japan
Prior art keywords
bag
end seal
sealer
product
packaging material
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.)
Granted
Application number
JP2003127604A
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Japanese (ja)
Other versions
JP4472268B2 (en
Inventor
Yoshiyuki Akiyama
嘉幸 秋山
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.)
Kawashima Packaging Machinery Ltd
Original Assignee
Kawashima Packaging Machinery Ltd
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Filing date
Publication date
Application filed by Kawashima Packaging Machinery Ltd filed Critical Kawashima Packaging Machinery Ltd
Priority to JP2003127604A priority Critical patent/JP4472268B2/en
Publication of JP2004331135A publication Critical patent/JP2004331135A/en
Application granted granted Critical
Publication of JP4472268B2 publication Critical patent/JP4472268B2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—Packaging machines
    • 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
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
    • B29C65/7888—Means for handling of moving sheets or webs
    • B29C65/7891—Means for handling of moving sheets or webs of discontinuously moving sheets or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/03—After-treatments in the joint area
    • B29C66/034—Thermal after-treatments
    • B29C66/0342—Cooling, e.g. transporting through welding and cooling zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/347—General aspects dealing with the joint area or with the area to be joined using particular temperature distributions or gradients; using particular heat distributions or gradients
    • B29C66/3472—General aspects dealing with the joint area or with the area to be joined using particular temperature distributions or gradients; using particular heat distributions or gradients in the plane of the joint, e.g. along the joint line in the plane of the joint or perpendicular to the joint line in the plane of the joint
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/349—Cooling the welding zone on the welding spot
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B29C66/81419—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled and flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81425—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being stepped, e.g. comprising a shoulder
    • 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
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91421—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools
    • B29C66/91423—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools using joining tools having different temperature zones or using several joining tools with different temperatures

Landscapes

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

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bag packaging machine capable of surely, compactly and simply creasing an end seal by folding the end seal with remaining heat after being sealed by heat-sealing by blowing air and cooling the end seal by the air. <P>SOLUTION: The end seal S3 likely to deform with the remaining heat immediately after being sealed by an end sealer 8 deforms by the pressure of air from an air nozzle 21, and the end seal S3 is folded together with a margin Fb of a tubular packaging material Ft. At the same time, the end seal S3 is cooled by the blown air. Since the end seal S3 is cooled while being folded to deform and kept deformed as it is, the end seal S3 is creased. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
この発明は、製品を筒状に包む包装材にマージン部分を残してエンドシールを施し、エンドシール部をマージン部分と共に折り曲げることが可能な袋包装機に関する。
【０００２】
【従来の技術】
従来、和菓子やパン、ご飯物等の塊状の製品を包装フィルム等の包装材によって包装する包装機については、横方向に供給される製品を同じ横方向に紙送りされるウェブ状の包装材で筒状に取り囲み、筒状の包装材の合わされた縁部同士をヒートシールすることでセンターシールを施し、更に、製品に対して包装材の送り方向の前後で包装材をエンドシールすることで、製品をいわゆる三方シールで包装する横型の袋包装機が用いられている。塊状の製品については、縦型の包装機よりも横型の包装機のほうが、製品を損傷させることなく且つ容易に、筒状の包装材の中に供給することができる。
【０００３】
横型のピロー又は逆ピロー包装機においては、製品がおにぎりや角形の塊状食品である場合には、製品は、その最も広い面を底にして姿勢崩れのおそれがない安定姿勢で筒状包装材の中に供給される。他方、販売店においては、包装体は、商品としての見栄えやアピール性、整然とした効率の良い陳列性を考慮して、製品の平らであるが狭い周面の一つを底面とした起立姿勢で並べて陳列されることが多い。この場合、センターシールが施された側とは反対側のシール無しの面が正面とされ、通常、正面には商品に関する印刷がなされる。こうした起立姿勢ではエンドシールの一方が底面側に置かれることになるので、エンドシールよりも外側に延びる包装材の耳部は、正面側への影響を避けるため、裏面側であるセンターシール側に折り返される。製品が和菓子等の物品である場合にも、エンドシールの外側に意図的に長く延ばされた耳部を、包装体の底側に折り返して、奉書状の包装のような高級感を出すことが行われている。しかしながら、こうしたエンドシールの外側に延びる長い耳部を折り返す作業を機械によって自動的に行おうとすると、複雑な機構を組み入れる必要があり、包装機の大型化や高コスト化を免れることができない。
【０００４】
菓子の包装として、三方シール・ピロー包装機による連続的な包装方法が提案されている（特許文献１参照）。この包装方法においては、包装紙の送り方向に隣接する包装体の隣合うエンドシール間の長さを長く取り、エンドシール間の位置においてカッタによって包装紙を切断することで各包装体が分離される。エンドシールの外側に伸びる包装紙の端部は、エンドシールを施す位置よりも包装体数個分の下流位置、即ちエンドシールの動作と互いに干渉することのない位置に配置され且つ袋包装体の搬送と同期して作動するプッシャやガイドによって持ち上げて折り返される。更に、折り返された包装紙の端部は、包装体に向けてプレス具で押さえることで、奉書包みに類似した和風包装感を醸し出すことが行われている。
【０００５】
また、ベルトコンベヤで縦置き状態で搬送される即席麺包装体のトップシール部を、まだ余熱を有する状態で片側に傾斜折曲し、この折曲面側に商品名等の印刷表示面があるトップシール部に折曲面側からエアーを吹き付け、そのトップシール部を商品名等の印刷表示面が表側に出る方向に反転傾斜させ、次いでこの即席麺包装体の反転傾斜されたトップシール部をベルトコンベヤと平行する上部押さえコンベヤで押さえて略水平となる状態に折曲させると共に、この間にシール部の余熱を放熱冷却させてトップシール部に反発復元力の生じない折り癖を付ける方法御装置が提案されている（特許文献２参照）。
【０００６】
しかしながら、サイドシールの外側に延びる耳部をプッシャやガイドによって上側へ折り返すには、プッシャやガイドは、サイドシールの動作との干渉を回避するため、サイドシールよりも相当下流に配置せざるを得ない。そのため、連続包装処理が一時停止すると、サイドシール位置とプッシャやガイドの配置位置との間に停止した包装体は、耳部処理が不完全なままの状態で取り残される。また、トップシール部の反転傾斜のためにエアーの吹付けを行うものにおいては、最終的に復元力のない折り癖が得られるのは、反転傾斜された後、更にその下流に配設されている上部押さえコンベヤによって押さえられてからである。即ち、上部押さえコンベヤで押さえて略水平となる状態に折曲されて搬送される間に、シール部の余熱が放熱冷却され、このときに復元力のない折り癖が付けられる。したがって、最終的な折り癖が付くのは、即席麺包装体がベルトコンベヤで搬送開始されてから相当下流の位置となる。この場合も、連続包装処理が一時停止したとき、折り癖が不完全な包装体が取り残される。
【０００７】
【特許文献１】
特開昭６１−１１３１１号公報（第２頁下欄〜第３頁上欄、第１３図〜第１６図 ）
【特許文献２】
特開平６−３２３２７号公報（図１）
【０００８】
【発明が解決しようとする課題】
そこで、製品を筒状に包む包装材にマージン部分を残してエンドシールを施し、エンドシール部をマージン部分と共に折り曲げる袋包装機において、余熱のあるエンドシール部を、冷却とそのときの形状保持性を利用して簡単な構造にて折り癖を付けることを可能にする点で解決すべき課題がある。
【０００９】
この発明の目的は、製品を筒状に包む包装材にマージン部分を残してエンドシールを施し、エンドシール部をマージン部分と共に、プッシャやガイドのような複雑な構造を用いることなく且つコンパクトで確実に折り曲げて折り癖を付けることができる袋包装機を提供することである。
【００１０】
【課題を解決するための手段】
上記の課題を解決するため、この発明による袋包装機は、製品を包んだ包装材にマージン部分を残してエンドシールを施すエンドシーラ、及び前記エンドシーラに近接して配置され前記包装材のシール直後のエンドシール部にエアを吹き付けるエアノズルを備え、前記エアノズルからの前記エアによって余熱を持つ前記エンドシール部を前記マージン部分と共に折り曲げる共に冷却して前記エンドシール部に折り癖を付けることから成っている。
【００１１】
この袋包装機によれば、製品を包んだ包装材は、マージン部分を残した状態にエンドシーラによってエンドシールが施される。ヒートシール直後のエンドシール部は、余熱を帯びて高温であるので、変形を受け易い状態にある。エンドシール部を含むマージン部分は、エンドシーラに近接して配置されているエアノズルによってエアが吹き付けられるので、余熱を持った状態にあるエンドシール部が吹き付けられるエアの圧力によって変形することで、全体として折り曲げられる。同時にエンドシール部は吹き付けられるエアによって冷却されるので、エンドシール部は変形した状態で固定されてエンドシール部に折り癖が付けられ、マージン部分は、エンドシール部の折曲げによって折り曲げられた状態に保たれる。
【００１２】
この袋包装機において、前記エアノズルは、前記エンドシーラのシール動作に同期して前記包装材の前記エンドシール部に接近又は離間動作をすることができる。エアノズルをエンドシーラ又はそれと共に動作する装置や部材に取り付けることで、エアノズルをエンドシーラのシール動作に同期してエンドシール部に接近又は離間させて、エンドシーラによってシールされた直後のエンドシール部にエアを吹き付けることができる。
【００１３】
この袋包装機において、前記エンドシーラは、前記折り癖を付ける方向に向けて傾斜したシール面を持つことができる。エンドシーラのシール面を折り癖を付ける方向に向けて傾斜させることで、エンドシール部は、エアノズルからのエアの吹き付けによって、マージン部分と共に一層容易に折り曲げることができる。
【００１４】
この袋包装機において、前記折り癖が付けられた前記マージン部分を、粘着性テープ又は粘着性ラベルによって袋本体に貼着することができる。折り癖が付けられたマージン部分については、そのままの状態では、見栄えが低下したり状況によっては何らかの拍子で折り戻される可能性もある。粘着性テープや粘着性ラベルをマージン部分と袋本体に跨がって貼り付けることによって、マージン部分が袋本体に貼着されて、良好な見栄えが維持され、袋包装体の取扱いも良好になる。粘着性テープや粘着性ラベルは、表面が無地のものでもよいが、製品が食品である場合には、表示義務がある製品についての情報が印刷されたものであってもよい。
【００１５】
この袋包装機は、前記製品を横方向に供給する供給コンベヤ、前記包装材を前記製品を筒状に包みながら前記製品の供給方向と同じ横方向に送る紙送り手段、及び前記エンドシーラに組み込まれ前記包装材を切断するカッタを備え、前記エンドシーラが間に前記包装材を挟み込む上下のエンドシーラ部から成る前記製品の連続包装が可能な横型袋包装機であり、前記エアノズルは、前記下側のエンドシーラ部に関連して配設されているものであってもよい。製品が個別塊状の物品である場合には、製品の包装機への供給に際して、重力によって投入するよりも横方向にコンベヤによって送り込む方が、製品の崩れや損傷を回避することができる。したがって、袋包装機は、製品供給用の供給コンベヤ、包装材送り用の紙送り手段、包装材を製品間の位置で切断するカッタを備え、エンドシーラが間に前記包装材を挟み込む上下のエンドシーラ部から成る横型のピロー包装機や逆ピロー包装機とすることができる。特に、逆ピロー包装機の場合、エアノズルを下側のエンドシーラ部に関連して配設し、上方のエンドシール部に向けてエアを吹き付けることが好ましい。上方に折り曲げられたマージン部は、その後、袋包装体を搬出する搬送路上に配設されるテープ貼りやラベル貼り手段によって、袋本体への貼り付けが容易となる。
【００１６】
【発明の実施の形態】
以下、添付した図面に基づいて、この発明による袋包装機の実施例を説明する。図１はこの発明による袋包装機が適用された横型包装機の一実施例において、シール動作状態にあるエンドシーラを含む要部を示す側面図、図２は図１に示す横型包装機がエンドシール部の冷却動作状態にあるところを示す側面図、図３は横型包装機と袋包装体へのラベル貼りの一例を示す斜視図、図４は図１に示すエンドシーラの拡大断面図である。
【００１７】
この発明による袋包装機は、全体として、図３に示す逆ピロー包装機に構成されている。図３に示すように、逆ピロー包装機１は、基本的に、製品Ａを横方向に供給する搬入コンベヤ２と、搬入コンベヤ２の下流側で搬送路の下方に配置されたロールＲから繰り出されるウェブ状包装材Ｆｗを筒状に成形するフォーマ３と、フォーマ３によって筒状に成形された筒状包装材Ｆｔの上側で合掌状に合わせられた両側縁部Ｆａ，Ｆａを挟んで筒状包装材Ｆｔを製品Ａの供給方向と同じ横方向に送る一対の紙送りローラ５，５から成る紙送り手段４と、紙送り手段４の下流側に配置され筒状包装材Ｆｔの両側縁部Ｆａ，Ｆａをヒートシールする一対のヒートシールローラ７，７から成るセンターシーラ６と、センターシーラ６の下流側に配置されて、隣り合う製品Ａ，Ａ間で筒状包装材Ｆｔにエンドシールを施すエンドシーラ８とを備えている。逆ピロー包装機１においては、製品Ａが横方向に供給されるので、製品Ａが個別塊状の物品である場合には、重力によって投入するよりも横方向に搬入コンベヤ２によって送り込む方が、製品Ａは包装機への送り込みに際して型崩れや損傷を受けることがなく、上記一連の動作によって製品Ａを筒状包装材Ｆｔに連続的に包装することができる。
【００１８】
図１において、筒状包装材Ｆｔと、筒状包装材Ｆｔの内部に一定間隔に隔置して置かれた製品Ａとは、搬送コンベヤとしてのベルトコンベヤ１０上に載置されて搬送され、エンドシーラ８によるエンドシール位置に送り込まれる。筒状包装材Ｆｔを送る紙送り手段４は、ベルトコンベヤ１０と同期を取って回転駆動される。センターシーラ６の下流側に配置されるエンドシーラ８は、隣り合う製品Ａ，Ａ間の位置で、筒状包装材Ｆｔを上下から挟み込む上側エンドシーラ部１４と下側エンドシーラ部１５とを備えており、図示しない駆動手段によって、例えば、軌跡が想像線で示されているボックスモーションをするように駆動される。エンドシーラ８には、筒状包装材Ｆｔを切断するカッタ９を組み込むことができる。エンドシーラ８の下流側には、ベルトコンベヤ１０と同じ高さに合わされた搬出用のベルトコンベヤ１２が配設されており、エンドシールが施された袋包装体Ｐはベルトコンベヤ１２に移載されて搬出される。ベルトコンベヤ１０とベルトコンベヤ１２とは、エンドシーラ８のボックスモーションに合わせて、両コンベヤの端部１１，１３が、前後に移動して製品Ａが包まれた筒状包装材Ｆｔの移載をスムーズにすると共にシール動作期間に合わせて開閉する、所謂、シャトルコンベヤを構成することができる。
【００１９】
エンドシーラ８の上側エンドシーラ部１４と下側エンドシーラ部１５とは、それぞれ、筒状包装材Ｆｔを切断するカッタ９を挟んで、筒状包装材Ｆｔの送り方向の上流側に設けられた第１主ヒートシーラ１６，１６と、下流側に設けられた第２主ヒートシーラ１７，１７とを備えている。第１及び第２主ヒートシーラ１６，１７は、それぞれ、通電によって発熱する加熱手段を備えている。上側エンドシーラ部１４と下側エンドシーラ部１５とは、また、第１主ヒートシーラ１６，１６の上流側において第１主ヒートシーラ１６，１６から一定間隔を置いた位置に副ヒートシーラ１８，１８を備えている。副ヒートシーラ１８，１８は、自らは発熱しないが、第１主ヒートシーラ１６，１６と一体的に結合されているので、第１主ヒートシーラ１６，１６からの熱伝導によって筒状包装材Ｆｔをヒートシールできる程度に加熱されている。
【００２０】
エンドシーラ８が上記構造を有していることにより、製品Ａの１個当たりの包装材には、製品Ａよりも送り方向前方側において、副ヒートシーラ１８，１８と第１主ヒートシーラ１６，１６との２本のヒートシールを施すことができる程度に幅広いマージン部分Ｆｂが確保される（図２、図４参照）。製品Ａよりも送り方向後方側には、第２主ヒートシーラ１７，１７がヒートシールを施すことができる程度の幅のマージン部分Ｆｄが確保される。図４に示すように、マージン部分Ｆｂには、第１主ヒートシーラ１６，１６によって施されたエンドシールＳ１と、副ヒートシーラ１８，１８によって施されたエンドシールＳ３が形成され、マージン部分Ｆｄには、第２主ヒートシーラ１７，１７によって施されたエンドシールＳ２が形成される。
【００２１】
エンドシーラの拡大断面図である図４に示すように、副ヒートシーラ１８，１８は、シール面１９，１９の一部として、折り曲げ方向（包装材の送り方向に対して上側）に傾斜させた傾斜面２０，２０を有している。この実施例では、傾斜面２０，２０はシール面１９，１９の下流側の部分に形成されている。副ヒートシーラ１８，１８をこのように構成することにより、エンドシールを施すと同時に、マージン部分Ｆｂを折り曲げる方向に予備的な癖を付けことができる。
【００２２】
下側エンドシーラ部１５には、上方に向かってエアを吹き出すエアノズル２１が取り付けられている。エアノズル２１がエアを吹き出す方向は、エンドシーラ８によってヒートシールが施されカッタ９によって切断されたマージン部分Ｆｂ、特に、副ヒートシーラ１８，１８によって施されたエンドシールＳ３に向けられている。エアノズル２１からのエアは、マージン部分Ｆｂに圧力を及ぼして、エンドシールＳ３を曲げの中心としてマージン部分Ｆｂを折り曲げる作用を及ぼす。また、エアノズル２１からのエアは、ヒートシールによって余熱を帯びているエンドシールＳ３を冷却し、その曲げ変形状態を固定する。したがって、マージン部分Ｆｂは、エアノズル２１からのエア吹付け領域を通過しても、折曲げ以前の状態には復元しない。エアノズル２１はエア供給源２２からフレキシブルな供給管２３によって接続されているので、エアノズル２１は、エンドシーラ８と共に移動してもエアの供給や吹き付けに支障はない。エアの吹き付けは、マージン部分Ｆｂの通過にかかわらず連続して行ってもよいが、マージン部分Ｆｂの通過に合わせて、吹き出し量を調整することも可能である。
【００２３】
袋包装体Ｐが搬出用のベルトコンベヤ１２、或いはその後続のコンベヤによって搬送されている途中に、折り曲げられて起立した状態にあるマージン部分Ｆｂに対して、その直前方に粘着性のラベルＬが、その下半分程度をマージン部分Ｆｂに沿わせる態様で供給される。ラベルＬは、袋包装体Ｐに対して相対的に押し当てられ、ラベルＬの下半分が袋包装体Ｐの前端部に貼り付けられる。袋包装体Ｐが更に搬送される中で、ゴムロールやスポンジローラ、滑り易い材質製の板から成る押さえ部材２４がラベルＬの上半分に対して当てられて、ラベルＬの上半分を折り曲げて袋包装体Ｐの上面に貼り付ける。粘着性のラベルＬに代えて、粘着性のテープを用いることもできる。粘着性ラベルＬや粘着性テープは、表面が無地のものでもよいが、製品Ａが食品である場合には、表示義務がある製品Ａについての情報が印刷されたものであってもよい。なお、エンドシーラ８に関連して、その前後に筒状包装材Ｆｔの側方からガゼット折込みを入れるガゼット爪４１，４２を配設することができる。
【００２４】
上記の実施例では、袋包装機として横型の逆ピロー包装機１を例に取って説明した。逆ピロー包装機１においては、包装材Ｆの両側縁部Ｆａ，Ｆａが筒状の最上点で重ね合わされてヒートシールされるので、センターシール部Ｆｃ（図３参照）が上方に形成される。マージン部分Ｆｂは、下方に配置されたエアノズルから吹き付けられるエアによって、上側であるセンターシール部Ｆｃ側に折り曲げられ、その後のラベル供給や押さえ部材２４によるラベル貼り作業も容易となる。したがって、ヒートシール部Ｓ１はセンターシール部Ｆｃ側に寄せられ、袋包装体Ｐのシール無しの部分を表側とすることによって、見栄えの良い袋包装体Ｐを得ることが容易である。この発明による袋包装機は、同じ横型である通常のピロー包装機に適用可能のみならず、縦型の製袋充填機においても適用可能である。更に、この発明による袋包装機は、予め成形された袋内に製品を個別に包装する袋個包装においても適用可能であることは明らかである。製品Ａは、例えば、菓子、おにぎり等の、袋包装体に包装されたときに、縦に起立させて店頭で陳列することができるものが好適であるが、これに限らないことも明らかである。更に、ヒートシール部Ｓ１〜Ｓ３においては、別の形態も可能である。即ち、ヒートシール部Ｓ３は、補助的なヒートシール部ではなく、ヒートシール部Ｓ１と同様の本格的なヒートシール部としてもよい。逆に、ヒートシール部Ｓ１を補助的なヒートシール部としてもよく、マージン部分Ｆｃについては、捻りやワイヤ結束等のヒートシールに代わる別の閉鎖手段が用いられる場合には、ヒートシール部Ｓ２は必ずしも必要ではない。
【００２５】
【発明の効果】
この発明による袋包装機は、上記のように、製品を包んだ包装材にマージン部分を残してエンドシールを施すエンドシーラと、エンドシーラに近接して配置され包装材のシール直後のエンドシール部にエアを吹き付けるエアノズルとを備え、エアノズルからのエアによってエンドシール部を折り曲げる共に冷却する構成となっているので、ヒートシールの余熱を帯びて高温の状態にあるエンドシール部は、その先のマージン部と共にエアノズルからのエアの圧力によって全体として折り曲げられ、同時にエンドシール部が冷却されて、そのときの変形がそのまま固定されてエンドシール部には折り癖が付けられる。したがって、この袋包装機によれば、製品を筒状に包む包装材にマージン部分を残してエンドシールを施し、ヒートシールによって余熱を帯びるエンドシール部を、エアの吹き付けとそのエアによる冷却とで、確実に且つ簡単に折り癖を付けることができ、プッシャやガイドのような複雑な構造を用いる必要はない。更に、エンドシールがされた位置でエアの吹き付けを行うことができるので、エンドシールの位置と折り癖を付ける位置とが離れている場合とは異なって、コンパクトな袋包装機を提供することができるとともに、連続包装可能な袋包装機が一次停止したときであっても耳折りの処理が不完全なままに取り残される袋包装体が生じることを避けることができる。
【図面の簡単な説明】
【図１】この発明による袋包装機が適用された横型包装機の一実施例において、シール動作状態にあるエンドシーラを含む要部を示す側面図である。
【図２】図１に示す横型包装機がエンドシール部の冷却動作状態にあるところを示す側面図である。
【図３】横型包装機と袋包装体へのラベル貼りの一例を示す側面図である。
【図４】図１に示すエンドシーラの拡大断面図である。
【符号の説明】
１ 逆ピロー包装機 ２ 搬入コンベヤ
３ フォーマ
４ 紙送りローラ ５ ローラ
６ センターシーラ ７ ヒートシールローラ
８ エンドシーラ ９ カッタ
１０ ベルトコンベヤ １１ ベルトコンベヤ１０の端部
１２ ベルトコンベヤ １３ ベルトコンベヤ１２の端部
１４ 上側エンドシーラ部 １５ 下側エンドシーラ部
１６ 第１主ヒートシーラ １７ 第２主ヒートシーラ
１８ 副ヒートシーラ
１９ シール面 ２０ 傾斜面
２１ エアノズル ２２ エア供給源
２３ フレキシブルな供給管 ２４ 押さえ部材
Ｆｗ ウェブ状包装材 Ｆｔ 筒状包装材
Ｆａ 包装材Ｆの両側縁部 Ｆｂ，Ｆｄ マージン部分
Ｆｃ センターシール部 Ｓ１，Ｓ２，Ｓ３ エンドシール部
Ａ 製品 Ｌ ラベル Ｐ 袋包装体[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bag packaging machine capable of applying an end seal to a packaging material for wrapping a product in a cylindrical shape, leaving a margin portion, and bending the end seal portion together with the margin portion.
[0002]
[Prior art]
Conventionally, for a packaging machine that wraps bulk products such as Japanese confectionery, bread, rice, etc. with packaging materials such as wrapping film, products that are supplied in the horizontal direction are web-like packaging materials that are fed in the same horizontal direction. By enclosing in a cylindrical shape, heat-sealing the combined edges of the cylindrical packaging material to give a center seal, and by end-sealing the packaging material before and after the packaging material in the feed direction, Horizontal type bag packaging machines that package products with so-called three-side seals are used. For bulk products, a horizontal packaging machine can be supplied into a cylindrical packaging material more easily and without damaging the product than a vertical packaging machine.
[0003]
In horizontal pillow or reverse pillow wrapping machines, if the product is a rice ball or square lump food, the product should be placed in a stable posture with the widest surface at the bottom and without risk of collapse. Supplied inside. On the other hand, in a store, the packaging body has an upright posture with the bottom of one of the narrow but narrow surfaces of the product in consideration of appearance, appeal, and orderly and efficient display. Often displayed side by side. In this case, the surface without the seal on the side opposite to the side on which the center seal has been applied is the front surface, and usually the front side is printed on the product. In such a standing posture, one end of the end seal is placed on the bottom surface side, so that the ear portion of the packaging material extending outward from the end seal is placed on the center seal side, which is the back side, in order to avoid influence on the front side. Wrapped. Even when the product is an article such as Japanese confectionery, the ear part, which is intentionally extended outside the end seal, is folded back to the bottom side of the package to give a high-class feeling like a letter of writing Has been done. However, if the machine automatically performs the operation of turning back the long ears extending outside the end seal, it is necessary to incorporate a complicated mechanism, and the size and cost of the packaging machine cannot be avoided.
[0004]
As a confectionery packaging, a continuous packaging method using a three-side seal / pillow packaging machine has been proposed (see Patent Document 1). In this packaging method, each package is separated by taking a long length between the adjacent end seals of the packages adjacent to each other in the feed direction of the wrapping paper, and cutting the wrapping paper with a cutter at a position between the end seals. The The end of the wrapping paper extending outside the end seal is disposed at a position downstream of the end of the end seal by several packs, that is, at a position where the end seal does not interfere with the operation of the end seal. It is lifted and folded by a pusher or a guide that operates in synchronization with the conveyance. Furthermore, the end portion of the folded wrapping paper is pressed against the wrapping body with a pressing tool to create a Japanese-style wrapping feeling similar to that of a gift wrap.
[0005]
In addition, the top seal part of the instant noodle package that is transported in a vertical state by the belt conveyor is inclined to one side while still having residual heat, and the top having a printed display surface such as a product name on the folding surface side. Air is blown onto the seal part from the side of the folded surface, and the top seal part is inverted and inclined so that the printed display surface of the product name etc. comes out on the front side, and then the inverted and inclined top seal part of this instant noodle package is a belt conveyor Proposes a method of attaching a crease that does not generate rebound restoring force to the top seal part by radiating and cooling the remaining heat of the seal part during this time, while pressing it with an upper holding conveyor parallel to (See Patent Document 2).
[0006]
However, in order to fold the ears extending outside the side seals upward with a pusher or a guide, the pusher or guide must be arranged considerably downstream of the side seal in order to avoid interference with the operation of the side seal. Absent. Therefore, when the continuous packaging process is temporarily stopped, the package stopped between the side seal position and the position where the pusher or the guide is disposed is left in an incomplete state of the ear part process. In addition, in the case where air is blown for the reversal inclination of the top seal part, the crease having no restoring force is finally obtained after the reversal inclination and further downstream. This is after being pressed by the upper holding conveyor. That is, the remaining heat of the seal portion is radiated and cooled while being folded into a substantially horizontal state while being pressed by the upper pressing conveyor, and at this time, a crease having no restoring force is attached. Therefore, the final crease is attached at a position considerably downstream after the instant noodle package is started to be conveyed by the belt conveyor. Also in this case, when the continuous packaging process is temporarily stopped, the package with incomplete folding is left behind.
[0007]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 61-11311 (lower column on page 2 to upper column on page 3, FIGS. 13 to 16)
[Patent Document 2]
JP-A-6-32327 (FIG. 1)
[0008]
[Problems to be solved by the invention]
Therefore, in bag packaging machines where end seals are applied to the packaging material that wraps the product in a cylinder shape, leaving margins, and the end seals are folded together with the margins, the end seals with residual heat are cooled and the shape is maintained at that time. There is a problem to be solved in that it is possible to make a crease with a simple structure using.
[0009]
An object of the present invention is to provide an end seal on a packaging material for wrapping a product in a cylindrical shape, leaving a margin portion, and the end seal portion together with the margin portion without using a complicated structure such as a pusher or a guide, and is compact and reliable. It is to provide a bag packaging machine that can be folded into a crease.
[0010]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, a bag packaging machine according to the present invention includes an end sealer that applies an end seal to a packaging material that wraps a product, leaving a margin portion, and a seal for the packaging material that is disposed adjacent to the end sealer. An air nozzle that blows air to the end seal portion immediately after the end seal portion; and the end seal portion that has residual heat by the air from the air nozzle is bent together with the margin portion and cooled to crease the end seal portion. Yes.
[0011]
According to this bag packaging machine, the packaging material wrapped with the product is end-sealed by the end sealer while leaving a margin portion. The end seal part immediately after heat sealing is in a state of being easily deformed because it is preheated and high temperature. The margin part including the end seal part is blown by the air nozzle arranged in the vicinity of the end sealer, so the end seal part in the state with residual heat is deformed by the pressure of the blown air, so that the whole As folded. At the same time, the end seal part is cooled by the blown air, so the end seal part is fixed in a deformed state, the end seal part is creased, and the margin part is bent by folding the end seal part. To be kept.
[0012]
In this bag packaging machine, the air nozzle can move toward or away from the end seal portion of the packaging material in synchronization with the sealing operation of the end sealer. By attaching the air nozzle to the end sealer or a device or member that operates with the end sealer, the air nozzle is moved closer to or away from the end seal portion in synchronization with the sealing operation of the end sealer, and the end seal portion immediately after being sealed by the end sealer Air can be blown.
[0013]
In this bag packaging machine, the end sealer can have a sealing surface inclined toward the direction of attaching the crease. By inclining the seal surface of the end sealer in the direction of folding, the end seal portion can be more easily bent together with the margin portion by blowing air from the air nozzle.
[0014]
In this bag wrapping machine, the margin portion with the creases attached thereto can be attached to the bag body with an adhesive tape or an adhesive label. The margin part with the crease may be undesirably deteriorated or may be folded back in some time depending on the situation. By sticking adhesive tape or adhesive label across the margin part and the bag body, the margin part is attached to the bag body, maintaining good appearance, and handling of the bag package is also good . The adhesive tape and the adhesive label may be plain on the surface, but when the product is food, information about the product for which labeling is mandatory may be printed.
[0015]
This bag packaging machine is incorporated in a supply conveyor for supplying the product in the horizontal direction, a paper feeding means for feeding the packaging material in the same horizontal direction as the supply direction of the product while wrapping the product in a cylindrical shape, and the end sealer. A horizontal bag packaging machine comprising a cutter for cutting the packaging material, wherein the end sealer includes upper and lower end sealers sandwiching the packaging material therebetween, and capable of continuously packaging the product. It may be arranged in association with the side end sealer. When the product is an individual lump product, it is possible to avoid the collapse and damage of the product by feeding the product to the packaging machine by the conveyor in the lateral direction rather than throwing it by gravity. Accordingly, the bag packaging machine includes a supply conveyor for supplying products, a paper feeding means for feeding packaging materials, and a cutter for cutting the packaging materials at positions between the products, and an end sealer sandwiches the packaging material therebetween. It can be set as the horizontal pillow packaging machine and reverse pillow packaging machine which consist of a sealer part. In particular, in the case of a reverse pillow packaging machine, it is preferable to arrange an air nozzle in association with the lower end sealer portion and to blow air toward the upper end seal portion. The margin portion bent upward is then easily attached to the bag body by tape attaching or label attaching means disposed on the conveyance path for carrying out the bag package.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a bag packaging machine according to the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a side view showing a main part including an end sealer in a sealing operation state in an embodiment of a horizontal packaging machine to which a bag packaging machine according to the present invention is applied, and FIG. 2 is an end view of the horizontal packaging machine shown in FIG. FIG. 3 is a perspective view showing an example of labeling on a horizontal packaging machine and a bag packaging body, and FIG. 4 is an enlarged sectional view of the end sealer shown in FIG. .
[0017]
The bag wrapping machine according to the present invention is configured as a reverse pillow wrapping machine shown in FIG. 3 as a whole. As shown in FIG. 3, the reverse pillow packaging machine 1 is basically fed out from a carry-in conveyor 2 that supplies the product A in the lateral direction and a roll R that is arranged below the carry-on path on the downstream side of the carry-in conveyor 2. A cylindrical shape with sandwiched between a former 3 for forming the web-shaped packaging material Fw into a cylindrical shape, and both side edges Fa, Fa aligned in the shape of a palm on the upper side of the cylindrical packaging material Ft formed into a cylindrical shape by the former 3 Paper feeding means 4 comprising a pair of paper feeding rollers 5 and 5 for feeding the packaging material Ft in the same lateral direction as the supply direction of the product A, and both side edges of the cylindrical packaging material Ft disposed downstream of the paper feeding means 4 A center sealer 6 comprising a pair of heat seal rollers 7 and 7 for heat-sealing Fa and Fa, and disposed downstream of the center sealer 6, an end seal is applied to the cylindrical packaging material Ft between adjacent products A and A. With end sealer 8 There. In the reverse pillow wrapping machine 1, since the product A is supplied in the lateral direction, when the product A is an individual lump-shaped article, it is preferable that the product is fed by the carry-in conveyor 2 in the lateral direction rather than being fed by gravity. A can be continuously packaged in the cylindrical packaging material Ft by the above-described series of operations without being deformed or damaged when fed into the packaging machine.
[0018]
In FIG. 1, the cylindrical packaging material Ft and the product A placed at regular intervals inside the cylindrical packaging material Ft are placed and conveyed on a belt conveyor 10 as a conveyor. It is fed to the end seal position by the end sealer 8. The paper feeding means 4 for feeding the cylindrical packaging material Ft is rotationally driven in synchronization with the belt conveyor 10. The end sealer 8 disposed on the downstream side of the center sealer 6 includes an upper end sealer portion 14 and a lower end sealer portion 15 that sandwich the cylindrical packaging material Ft from above and below at a position between adjacent products A and A. For example, it is driven by a driving means (not shown) so as to make a box motion whose trajectory is indicated by an imaginary line. The end sealer 8 can incorporate a cutter 9 for cutting the cylindrical packaging material Ft. On the downstream side of the end sealer 8, an unloading belt conveyor 12 that is adjusted to the same height as the belt conveyor 10 is disposed, and the bag package P to which the end seal is applied is transferred to the belt conveyor 12. Are carried out. The belt conveyor 10 and the belt conveyor 12 transfer the cylindrical packaging material Ft in which the end portions 11 and 13 of both conveyors move back and forth and the product A is wrapped in accordance with the box motion of the end sealer 8. A so-called shuttle conveyor can be configured that is smooth and opens and closes in accordance with the sealing operation period.
[0019]
The upper end sealer portion 14 and the lower end sealer portion 15 of the end sealer 8 are provided on the upstream side in the feed direction of the cylindrical packaging material Ft, with the cutter 9 for cutting the cylindrical packaging material Ft interposed therebetween. First main heat sealers 16 and 16 and second main heat sealers 17 and 17 provided on the downstream side are provided. The first and second main heat sealers 16 and 17 are each provided with heating means that generates heat when energized. The upper end sealer portion 14 and the lower end sealer portion 15 also include auxiliary heat sealers 18 and 18 at positions spaced apart from the first main heat sealers 16 and 16 on the upstream side of the first main heat sealers 16 and 16. ing. The sub heat sealers 18 and 18 do not generate heat themselves, but are joined together with the first main heat sealers 16 and 16, so that the cylindrical packaging material Ft is heat sealed by heat conduction from the first main heat sealers 16 and 16. It is heated as much as possible.
[0020]
Since the end sealer 8 has the above-described structure, the packaging material per product A includes the auxiliary heat sealers 18 and 18 and the first main heat sealers 16 and 16 on the front side in the feed direction with respect to the product A. Thus, a wide margin portion Fb is secured to such an extent that two heat seals can be performed (see FIGS. 2 and 4). A margin portion Fd having a width that allows the second main heat sealers 17 and 17 to perform heat sealing is secured behind the product A in the feed direction. As shown in FIG. 4, an end seal S1 applied by the first main heat sealers 16 and 16 and an end seal S3 applied by the sub heat sealers 18 and 18 are formed in the margin portion Fb, and the margin portion Fd The end seal S2 applied by the second main heat sealers 17, 17 is formed.
[0021]
As shown in FIG. 4 which is an enlarged cross-sectional view of the end sealer, the auxiliary heat sealers 18 and 18 are inclined as a part of the seal surfaces 19 and 19 in the bending direction (upward with respect to the packaging material feeding direction). Surfaces 20 and 20 are provided. In this embodiment, the inclined surfaces 20 and 20 are formed in the downstream portion of the seal surfaces 19 and 19. By configuring the sub heat sealers 18 and 18 in this way, it is possible to apply a preliminary ridge in the direction in which the margin portion Fb is bent at the same time that end sealing is performed.
[0022]
An air nozzle 21 that blows air upward is attached to the lower end sealer portion 15. The direction in which the air nozzle 21 blows air is directed to the margin portion Fb that has been heat-sealed by the end sealer 8 and cut by the cutter 9, particularly the end seal S3 that has been provided by the auxiliary heat sealers 18 and 18. The air from the air nozzle 21 exerts pressure on the margin portion Fb, and acts to bend the margin portion Fb with the end seal S3 as a bending center. Moreover, the air from the air nozzle 21 cools the end seal S3 which has a residual heat by heat sealing, and fixes its bending deformation state. Therefore, even if the margin portion Fb passes through the air blowing area from the air nozzle 21, it does not recover to the state before bending. Since the air nozzle 21 is connected from the air supply source 22 by the flexible supply pipe 23, even if the air nozzle 21 moves together with the end sealer 8, there is no hindrance to air supply and spraying. The blowing of air may be performed continuously regardless of the passage of the margin portion Fb, but the amount of blowing can be adjusted in accordance with the passage of the margin portion Fb.
[0023]
While the bag package P is being conveyed by the belt conveyor 12 for carrying out or the subsequent conveyor, an adhesive label L is placed immediately before the margin portion Fb which is folded and raised. The lower half is supplied in a manner along the margin portion Fb. The label L is pressed relatively to the bag package P, and the lower half of the label L is attached to the front end of the bag package P. While the bag package P is further conveyed, a pressing member 24 made of a rubber roll, a sponge roller, or a plate made of a slippery material is applied to the upper half of the label L, and the upper half of the label L is folded to sack the bag. Affix to the upper surface of the package P. Instead of the adhesive label L, an adhesive tape can also be used. The adhesive label L and the adhesive tape may have a plain surface, but when the product A is food, information on the product A for which display is obligatory may be printed. In addition, in relation to the end sealer 8, gusset claws 41 and 42 for inserting gusset folds from the side of the cylindrical packaging material Ft can be disposed before and after the end sealer 8.
[0024]
In the above embodiment, the horizontal reverse pillow packaging machine 1 has been described as an example of the bag packaging machine. In the reverse pillow packaging machine 1, since both side edges Fa and Fa of the packaging material F are overlapped and heat-sealed at the cylindrical uppermost point, the center seal part Fc (see FIG. 3) is formed upward. The margin portion Fb is bent toward the center seal portion Fc, which is the upper side, by the air blown from the air nozzle disposed below, and the label supply operation by the label supply and the pressing member 24 thereafter becomes easy. Therefore, the heat seal part S1 is brought closer to the center seal part Fc side, and by making the unsealed part of the bag package P the front side, it is easy to obtain a good-looking bag package P. The bag packaging machine according to the present invention can be applied not only to a normal pillow packaging machine having the same horizontal type but also to a vertical type bag making and filling machine. Further, it is apparent that the bag packaging machine according to the present invention can be applied to individual bag packaging in which products are individually packaged in a pre-formed bag. As the product A, for example, a product such as a confectionery, a rice ball, etc., that can be raised vertically and displayed at a store when packaged in a bag package is suitable, but it is obvious that the product A is not limited to this. . Furthermore, another form is also possible in the heat seal portions S1 to S3. That is, the heat seal portion S3 may be a full-scale heat seal portion similar to the heat seal portion S1, not an auxiliary heat seal portion. Conversely, the heat seal portion S1 may be an auxiliary heat seal portion. For the margin portion Fc, when another closing means such as twisting or wire bundling is used instead of the heat seal portion, the heat seal portion S2 is It is not always necessary.
[0025]
【The invention's effect】
As described above, the bag packaging machine according to the present invention includes an end sealer for applying an end seal to a packaging material wrapped with a product, leaving a margin portion, and an end seal portion disposed in the vicinity of the end sealer and immediately after sealing the packaging material. The end seal part is bent and cooled by the air from the air nozzle, and the end seal part that is in a high temperature state due to the residual heat of the heat seal has a margin beyond it. The end seal portion is bent as a whole together with the air pressure from the air nozzle, and the end seal portion is cooled at the same time. Therefore, according to this bag wrapping machine, end sealing is performed by leaving a margin portion on the packaging material for wrapping the product in a cylindrical shape, and the end sealing portion that is charged with heat by heat sealing is applied by air blowing and cooling by the air. The folds can be reliably and easily made, and it is not necessary to use a complicated structure such as a pusher or a guide. Furthermore, since air can be blown at the position where the end seal is provided, a compact bag packaging machine can be provided unlike the case where the position of the end seal is different from the position where the crease is attached. In addition, it is possible to avoid the occurrence of a bag package that is left incompletely in the process of the ear fold even when the bag wrapping machine capable of continuous wrapping is temporarily stopped.
[Brief description of the drawings]
FIG. 1 is a side view showing a main part including an end sealer in a sealing operation state in an embodiment of a horizontal packaging machine to which a bag packaging machine according to the present invention is applied.
FIG. 2 is a side view showing a state where the horizontal packaging machine shown in FIG. 1 is in a cooling operation state of an end seal portion.
FIG. 3 is a side view showing an example of labeling on a horizontal packaging machine and a bag package.
4 is an enlarged cross-sectional view of the end sealer shown in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Reverse pillow packaging machine 2 Carry-in conveyor 3 Former 4 Paper feed roller 5 Roller 6 Center sealer 7 Heat seal roller 8 End sealer 9 Cutter 10 Belt conveyor 11 End of belt conveyor 10 Belt conveyor 13 End 14 of belt conveyor 12 Upper side End sealer 15 Lower end sealer 16 First main heat sealer 17 Second main heat sealer 18 Sub heat sealer 19 Sealing surface 20 Inclined surface 21 Air nozzle 22 Air supply source 23 Flexible supply pipe 24 Holding member Fw Web-like packaging material Ft Cylindrical shape Wrapping material Fa Wrapping edges Fb, Fd Margin part Fc Center seal part S1, S2, S3 End seal part A Product L Label P Bag package

Claims (5)

製品を包んだ包装材にマージン部分を残してエンドシールを施すエンドシーラ、及び前記エンドシーラに近接して配置され前記包装材のシール直後のエンドシール部にエアを吹き付けるエアノズルを備え、前記エアノズルからの前記エアによって余熱を持つ前記エンドシール部を前記マージン部分と共に折り曲げる共に冷却して前記エンドシール部に折り癖を付けることから成る袋包装機。An end sealer for applying an end seal to the packaging material wrapped with the product, leaving an margin, and an air nozzle that is disposed in the vicinity of the end sealer and that blows air to the end seal portion immediately after sealing of the packaging material, from the air nozzle A bag wrapping machine comprising: folding the end seal portion having residual heat by the air together with the margin portion and cooling the end seal portion to crease the end seal portion. 前記エアノズルは、前記エンドシーラのシール動作に同期して前記包装材の前記エンドシール部に接近又は離間動作をすることから成る請求項１に記載の袋包装機。The bag packaging machine according to claim 1, wherein the air nozzle moves toward or away from the end seal portion of the packaging material in synchronization with the sealing operation of the end sealer. 前記エンドシーラは、前記折り癖を付ける方向に向けて傾斜したシール面を持つことから成る請求項１に記載の袋包装機。The bag packaging machine according to claim 1, wherein the end sealer has a sealing surface inclined in a direction in which the crease is attached. 前記折り癖が付けられた前記マージン部分は、粘着性テープ又は粘着性ラベルによって袋本体に貼着されることから成る請求項１に記載の袋包装機。The bag wrapping machine according to claim 1, wherein the margin part to which the crease is attached is adhered to the bag body by an adhesive tape or an adhesive label. 前記包装機は、前記製品を横方向に供給する供給コンベヤ、前記包装材を前記製品を筒状に包みながら前記製品の供給方向と同じ横方向に送る紙送り手段、及び前記エンドシーラに組み込まれ前記包装材を切断するカッタを備え、前記エンドシーラが間に前記包装材を挟み込む上下のエンドシーラ部から成る前記製品の連続包装が可能な横型袋包装機であり、前記エアノズルは、前記下側のエンドシーラ部に関連して配設されていることから成る請求項１〜４のいずれか１項に記載の袋包装機。The packaging machine is incorporated in a supply conveyor for supplying the product in the horizontal direction, a paper feeding means for feeding the packaging material in the same horizontal direction as the supply direction of the product while wrapping the product in a cylindrical shape, and the end sealer. A horizontal bag wrapping machine comprising a cutter for cutting the packaging material, wherein the end sealer sandwiches the packaging material between the upper and lower end sealers, and is capable of continuous packaging of the product. The bag packaging machine according to any one of claims 1 to 4, wherein the bag packaging machine is arranged in association with the end sealer portion of the bag.
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JP2013086840A (en) * 2011-10-17 2013-05-13 Kawashima Packaging Mach Ltd Method and apparatus for bending edge of pillow package in horizontal bag-making filling/packaging machine
JP2014237481A (en) * 2013-06-10 2014-12-18 株式会社鈴木製作所 Three-way seal film packing machine
JP2018065588A (en) * 2016-10-19 2018-04-26 大森機械工業株式会社 Packaging machine and folding method of packaging body
WO2018102113A1 (en) * 2016-12-02 2018-06-07 Sealed Air Corporation (Us) Separation of flexible packages
CN113682569A (en) * 2021-10-21 2021-11-23 江苏博甲生物科技有限公司 Beverage processing capper
CN114802851A (en) * 2022-04-14 2022-07-29 武汉华工激光工程有限责任公司 Film sealing station with cold compress function and automatic filling and film sealing production line

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JP2013086840A (en) * 2011-10-17 2013-05-13 Kawashima Packaging Mach Ltd Method and apparatus for bending edge of pillow package in horizontal bag-making filling/packaging machine
JP2014237481A (en) * 2013-06-10 2014-12-18 株式会社鈴木製作所 Three-way seal film packing machine
WO2014199721A1 (en) * 2013-06-10 2014-12-18 株式会社鈴木製作所 Three-side seal film packaging machine
CN105143048A (en) * 2013-06-10 2015-12-09 株式会社铃木制作所 Three-side seal film packaging machine
KR20160019433A (en) * 2013-06-10 2016-02-19 가부시키가이샤 스즈끼 세이샤꾸쇼 Three-side seal film packaging machine
KR102102382B1 (en) * 2013-06-10 2020-04-20 가부시키가이샤 스즈끼 세이샤꾸쇼 Three-side seal film packaging machine
JP2018065588A (en) * 2016-10-19 2018-04-26 大森機械工業株式会社 Packaging machine and folding method of packaging body
WO2018102113A1 (en) * 2016-12-02 2018-06-07 Sealed Air Corporation (Us) Separation of flexible packages
CN113682569A (en) * 2021-10-21 2021-11-23 江苏博甲生物科技有限公司 Beverage processing capper
CN114802851A (en) * 2022-04-14 2022-07-29 武汉华工激光工程有限责任公司 Film sealing station with cold compress function and automatic filling and film sealing production line
CN114802851B (en) * 2022-04-14 2024-04-26 武汉华工激光工程有限责任公司 Film sealing station with cold compress function and automatic filling film sealing production line

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