JP5094472B2 - Plastic film welding equipment - Google Patents

Plastic film welding equipment Download PDF

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Publication number
JP5094472B2
JP5094472B2 JP2008048912A JP2008048912A JP5094472B2 JP 5094472 B2 JP5094472 B2 JP 5094472B2 JP 2008048912 A JP2008048912 A JP 2008048912A JP 2008048912 A JP2008048912 A JP 2008048912A JP 5094472 B2 JP5094472 B2 JP 5094472B2
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JP
Japan
Prior art keywords
roll
plastic film
laser beam
bag
laser
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.)
Expired - Fee Related
Application number
JP2008048912A
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Japanese (ja)
Other versions
JP2009202502A (en
Inventor
剛 杉生
直晃 福田
万晶 佐々木
孝康 横林
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.)
Hitachi Zosen Corp
Original Assignee
Hitachi Zosen Corp
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Filing date
Publication date
Application filed by Hitachi Zosen Corp filed Critical Hitachi Zosen Corp
Priority to JP2008048912A priority Critical patent/JP5094472B2/en
Publication of JP2009202502A publication Critical patent/JP2009202502A/en
Application granted granted Critical
Publication of JP5094472B2 publication Critical patent/JP5094472B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—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
    • B29C66/818—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8181—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
    • B29C66/81811—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects of the welding jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C65/245—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 the heat transfer being achieved contactless, e.g. by radiation
    • 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
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B29C66/2424—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain
    • B29C66/24243—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral
    • B29C66/24244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral forming a rectangle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being non-straight, e.g. forming non-closed contours
    • 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
    • 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
    • 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
    • B29C66/83415—Roller, cylinder or drum types the contact angle between said rollers, cylinders or drums and said parts to be joined being a non-zero angle
    • 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
    • B29C66/83417—Roller, cylinder or drum types said rollers, cylinders or drums being hollow
    • 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
    • B29C66/851—Bag or container making machines
    • B29C66/8511—Bag making machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/934—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed
    • B29C66/93451—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed by controlling or regulating the rotational speed, i.e. the speed of revolution
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0838—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using laser
    • 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
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/004—Shaping under special conditions
    • B29C2791/009—Using laser
    • 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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1654—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1654—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
    • B29C65/1658—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined scanning once, e.g. contour laser welding
    • 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
    • B29C66/812—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 composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8122—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 composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • 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
    • B29C66/812—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 composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8126—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 composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/81266—Optical properties, e.g. transparency, reflectivity
    • B29C66/81267—Transparent to electromagnetic radiation, e.g. to visible light
    • 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
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    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • B29C66/91631—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being kept constant over time
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • B29C66/91641—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/934—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed
    • B29C66/93441—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed the speed being non-constant over time
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/0026—Transparent
    • B29K2995/0027—Transparent for light outside the visible spectrum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7148—Blood bags, medical bags

Description

本発明は、レーザビームを用いてプラスチックフィルム同士を溶着する溶着装置に関するものである。 The present invention relates to welding equipment for welding the plastic films together using a laser beam.

従来、医薬用容器（例えば、輸液バッグ）、食品用容器、化粧品用容器などのプラスチックフィルム製の袋状容器を製造する場合、２枚のプラスチックフィルムをロールから引き出すとともに、互いに重ねた状態で、袋状容器のシール部（溶着部である）に相当する部分を、ヒートシールバーつまり金型により上下から挟持して加熱・溶着することにより、シール部を形成していた（例えば、特許文献１参照）。
特開２００７−８２６０４号公報 Conventionally, when manufacturing a bag-like container made of a plastic film such as a pharmaceutical container (for example, an infusion bag), a food container, or a cosmetic container, the two plastic films are pulled out from the roll, A portion corresponding to a seal portion (a weld portion) of a bag-like container is sandwiched from above and below by a heat seal bar, that is, a mold, and heated and welded to form a seal portion (for example, Patent Document 1). reference).
JP 2007-82604 A

従来の袋状容器の製造方法によると、ヒートシールバーを用いてシール部を形成しているため、袋状容器の形状が変われば、当然に、シール部の形状も変わることになり、したがってヒートシールバーそのものを新しく製作しなければならず、コストが高くつくという問題があった。   According to the conventional method for manufacturing a bag-shaped container, since the seal portion is formed using a heat seal bar, if the shape of the bag-shaped container changes, naturally, the shape of the seal portion also changes. There was a problem that the seal bar itself had to be newly manufactured, and the cost was high.

そこで、本発明は、ヒートシールバーを用いずにプラスチックフィルム同士を溶着させ得るプラスチックフィルムの溶着装置を提供することを目的とする。 The present invention aims at providing a welding equipment of the plastic film that can be welded to the plastic film to each other without using a heat seal bar.

上記課題を解決するため、本発明に係るプラスチックフィルムの溶着装置は、両端の支持軸部を介して回転自在に支持されるとともに内部に空間室が形成された回転ロール、およびこの回転ロールと並行に配置されて当該回転ロールとの間にプラスチックフィルムを導き押圧し得る押さえロールと、上記回転ロールの空間室内に配置されてレーザ出射装置から出射されるとともに当該回転ロールの一方の支持軸部内を通過されたレーザビームを当該回転ロールの筒状部に照射させる光走査装置とを具備し、
且つ上記回転ロールの筒状部をレーザビームを透過し得る透明材料で構成するとともに、この筒状部の外周面に、レーザ光を吸収し得る吸収部材を配置したものであり、
また上記構成において、回転ロールに接触して当該回転ロールを冷却し得る冷却ロールを具備したものである。 To solve the above problem, welding devices of plastic film according to the present onset Ming, rotating rolls space chamber formed therein is rotatably supported via the supporting shaft portions at both ends, and the the rotating roll A pressing roll that is arranged in parallel and can guide and press the plastic film between the rotating rolls, and is arranged in a space chamber of the rotating rolls and emitted from the laser emitting device, and in one support shaft portion of the rotating rolls An optical scanning device that irradiates the cylindrical portion of the rotating roll with the laser beam passed through
The cylindrical portion of the rotating roll is made of a transparent material that can transmit a laser beam, and an absorbing member that can absorb laser light is disposed on the outer peripheral surface of the cylindrical portion.
Moreover, in the said structure, the cooling roll which can contact the rotation roll and can cool the said rotation roll was comprised.

上記プラスチックフィルムの溶着装置によると、プラスチックフィルム同士を溶着させて袋状容器を得る際に、少なくとも２枚のプラスチックフィルムを押さえロールとの間に導き押圧し得る回転ロール内に形成された空間室内にレーザビームを出射するとともに、この空間室内に配置された光走査装置により、このレーザビームを筒状部に向かって照射して、シール部を形成するようにしたので、袋状容器の形状が変わった場合でも、制御装置により光走査装置を制御してレーザビームの照射位置を変更するだけで対処し得る。すなわち、従来のように、ヒートシールバーを新しく製作する必要がないので、コストの低減化を図ることができる。 According to the welding equipment of the plastic film, by welding plastic films together in obtaining a bag-shaped container, which is formed in the rotation in the roll may press lead between the roll pressing at least two plastic films The laser beam is emitted into the space chamber, and the laser beam is radiated toward the cylindrical portion by the optical scanning device disposed in the space chamber so as to form the seal portion. Even if the shape changes, it can be dealt with by simply changing the irradiation position of the laser beam by controlling the optical scanning device with the control device. That is, since it is not necessary to newly manufacture a heat seal bar as in the prior art, the cost can be reduced.

以下、本発明の実施の形態に係るプラスチックフィルムの溶着装置を図面に基づき説明する。
ところで、本実施の形態においては、プラスチックフィルムを用いて、袋状容器、例えば輸液バッグなどの医薬用容器を製造するための製造設備に設けられるプラスチックフィルムの溶着装置および溶着方法について説明する。 It will be described below with reference to welding equipment for plastic film according to the embodiment of the present invention with reference to the drawings.
By the way, in this Embodiment, the welding apparatus and welding method of the plastic film provided in the manufacturing equipment for manufacturing medical containers, such as a bag-shaped container, for example, an infusion bag, using a plastic film are demonstrated.

まず、製造される輸液バッグ（以下、袋状容器という）について簡単に説明しておく。
図１に示すように、この袋状容器１は、２枚のプラスチックフィルム（つまり合成樹脂製）Ｆが重ねられるとともに所定部分が溶着（接着、シールともいう）されて製造されるもので、標準的な形状としては、一端側に開口部２を有するとともに残りの三方の縁部（両側縁部および他方の端縁部）が溶着されたものである。以下、溶着部分をシール部３という。 First, an infusion bag to be manufactured (hereinafter referred to as a bag-like container) will be briefly described.
As shown in FIG. 1, the bag-like container 1 is manufactured by stacking two plastic films (that is, synthetic resin) F and welding a predetermined portion (also referred to as adhesion or sealing). As a typical shape, an opening 2 is provided on one end side, and the remaining three edge portions (both side edge portions and the other end edge portion) are welded. Hereinafter, the welded portion is referred to as a seal portion 3.

なお、図１においては、液体の充填室が一つ（単室）である場合を示したが、例えば図２に示すように、２種類の液体をそれぞれ別個に収納しておき、使用時に、混合させるようにした例えば二つの充填室を有する複室の袋状容器（中間に仕切り部としてのシール部が形成される）もあるが、ここでは単室の場合について説明する。   In addition, in FIG. 1, although the case where there was one liquid filling chamber (single chamber) was shown, for example, as shown in FIG. For example, a multi-chamber bag-like container having two filling chambers (a seal portion as a partitioning portion is formed in the middle) may be used. Here, the case of a single chamber will be described.

図３〜図５に示すように、袋状容器の製造設備には、プラスチックフィルムの溶着装置１０が具備されている。
この溶着装置１０には、両端に設けられ且つ貫通穴１３を有し且つ小径にされた支持軸部１１ａを介して支持体（図示せず）側に軸受（図示せず）を介して水平軸心回りで回転自在に支持されるとともに内部に円柱状の空間室１２が形成された回転ロール１１と、同じく支持体側に支持されるとともに上記回転ロール１１の一方の支持軸部１１ａに弾性カップリング（ゴム製のものが用いられる）１４を介して連結されて当該回転ロール１１を回転させる環状モータ［貫通穴１６を有するＤＤ（ダイレクトドライブ）モータが用いられる］１５と、上記回転ロール１１と並行に配置されて当該回転ロール１１との間に２枚のプラスチックフィルムＦを導き押圧する押さえロール１７と、同じく回転ロール１１と並行に且つ上記押さえロール１７とは反対側に配置されて当該回転ロール１１を冷却する冷却ロール１８と、上記回転ロール１１の一方の端部側例えば環状モータ１５側に配置されてレーザビームを発射し得るレーザ出射装置（例えば、半導体レーザ、ＹＡＧなどの固体レーザが用いられる）１９と、上記回転ロール１１の空間室１２内に配置されて上記レーザ出射装置１９から出射されるとともに当該回転ロール１１の一方の支持軸部１１ａ内を通過されたレーザビームを当該回転ロール１１の筒状の外周面に照射させる光走査装置（例えば、一次元走査または二次元走査を行い得るガルバノスキャナが用いられる）２０と、上記レーザ出射装置１９および光走査装置２０を制御する制御装置２１とが具備されている。 As shown in FIGS. 3 to 5, a plastic film welding apparatus 10 is provided in a bag-like container manufacturing facility.
The welding apparatus 10 includes a horizontal shaft through a bearing (not shown) on a support body (not shown) side through a support shaft portion 11a provided at both ends and having through holes 13 and having a small diameter. A rotating roll 11 that is rotatably supported around the center and has a cylindrical space chamber 12 formed therein, and is also supported on the support side and elastically coupled to one support shaft portion 11a of the rotating roll 11. An annular motor (a DD (direct drive) motor having a through-hole 16 is used) 15 that is connected via 14 and rotates the rotating roll 11 is connected in parallel with the rotating roll 11. A press roll 17 that is arranged in the web and that guides and presses two plastic films F between the rotary roll 11 and the press roll 1 in parallel with the rotary roll 11. A cooling roll 18 that is disposed on the opposite side to cool the rotary roll 11, and a laser emitting device that is capable of emitting a laser beam disposed on one end side of the rotary roll 11, for example, the annular motor 15 side (for example, , A solid-state laser such as a semiconductor laser or YAG is used) 19, and is disposed in the space chamber 12 of the rotary roll 11 and emitted from the laser emitting device 19 and one support shaft portion 11 a of the rotary roll 11. An optical scanning device (for example, a galvano scanner capable of performing one-dimensional scanning or two-dimensional scanning) 20 for irradiating the cylindrical outer peripheral surface of the rotary roll 11 with the laser beam passed through the inside, and the laser emitting device 19 and a control device 21 for controlling the optical scanning device 20.

なお、上記光走査装置２０は、モータ１５の貫通穴１６、回転ロール１１の両端部の貫通穴１３および空間室１２を挿通された板状の支持部材２２を介して支持体側に支持されている。勿論、回転ロール１１はモータ１５により回転され、また上記支持部材２２は、その回転中心軸近傍で且つ回転中心軸に沿って配置されている。なお、上記支持部材２２の途中が、両端部の貫通穴１３内に配置された軸受２３により支持されている。また、冷却ロール１８についても、支持体側に回転自在に支持されているとともに、例えば内部に冷却水の供給管路が形成されている。   The optical scanning device 20 is supported on the support side through a through hole 16 of the motor 15, a through hole 13 at both ends of the rotary roll 11, and a plate-like support member 22 inserted through the space chamber 12. . Of course, the rotating roll 11 is rotated by the motor 15, and the support member 22 is disposed in the vicinity of the rotation center axis and along the rotation center axis. The middle of the support member 22 is supported by bearings 23 arranged in the through holes 13 at both ends. Further, the cooling roll 18 is also rotatably supported on the support side, and a cooling water supply conduit is formed therein, for example.

さらに、上記回転ロール１１の筒状部１１ｂは、レーザビームを透過し得る透明材料（レーザ光に対して高い透過性を有する材料で、例えば、硬質耐熱性ガラスなどが用いられる）で構成されるとともに、この筒状部１１ｂの外周面には、レーザ光を吸収し得る吸収部材（レーザ光に対して吸収特性が高い材料、例えばステンレスなどの金属表面に黒アルマイトなどを被覆したものが用いられる）１１ｃが配置されている。   Further, the cylindrical portion 11b of the rotating roll 11 is made of a transparent material that can transmit a laser beam (a material having high transparency to laser light, such as hard heat-resistant glass). At the same time, an absorbing member capable of absorbing laser light (a material having high absorption characteristics with respect to laser light, for example, a metal surface such as stainless steel covered with black anodized or the like is used on the outer peripheral surface of the cylindrical portion 11b. ) 11c is arranged.

また、上記光走査装置２０には、所定軸心回り、例えば水平軸心（回転軸心）と直交する軸心回りで回転可能（揺動可能ともいえる）に設けられてレーザビームを回転軸心を通過する平面内の任意方向に反射し得る反射ミラー（図１に示す）２０ａと、この反射ミラー２０ａを揺動させる揺動装置（同じく、図１に示し、回転装置ということもでき、例えばサーボモータなどが用いられる）２０ｂとが具備されている。ここでは、レーザビームを回転ロール１１の幅方向でのみ移動させるもの（つまり、一次元スキャナである）として説明したが、勿論、互いに直交する軸心回りで揺動し得る２つの反射ミラーを配置した二次元スキャナを用いてもよい。   Further, the optical scanning device 20 is provided so as to be rotatable about a predetermined axis, for example, an axis perpendicular to the horizontal axis (rotation axis) (which can be said to be swingable), and the laser beam is rotated about the axis of rotation. A reflecting mirror (shown in FIG. 1) 20a that can reflect in an arbitrary direction within a plane passing through and a swinging device that swings the reflecting mirror 20a (also shown in FIG. 20b) (a servo motor or the like is used). Here, the laser beam has been described as moving only in the width direction of the rotary roll 11 (that is, a one-dimensional scanner), but of course, two reflecting mirrors that can be swung around axes orthogonal to each other are arranged. A two-dimensional scanner may be used.

さらに、上記制御装置２１は、図３に示すように、袋状容器１を形成する際の種々の制御パラメータを設定する制御パラメータ設定部３１、この制御パラメータ設定部３１にて設定されたレーザ出力データを入力してレーザ出射装置１９から出射されるレーザビームの出力すなわちビーム径を制御するレーザ出力制御部３２と、袋状容器１の形状データ例えばシール部３を形成する際のレーザビームの照射位置データ（例えば、ＣＡＤデータが用いられる）に基づき光走査装置２０の揺動装置２０ｂを制御するビーム照射位置制御部３３と、上記制御パラメータ設定部３１にて設定されたレーザビーム先端の移動速度（以下、ビーム移動速度といい、加工速度ということもできる）を入力して当該ビーム移動速度となるように光走査装置２０の揺動装置２０ｂを制御するビーム移動速度制御部３４とから構成されている。   Further, as shown in FIG. 3, the control device 21 includes a control parameter setting unit 31 for setting various control parameters when forming the bag-like container 1, and a laser output set by the control parameter setting unit 31. Laser output controller 32 for controlling the output of the laser beam emitted from the laser emitting device 19 by inputting data, that is, the beam diameter, and irradiation of the laser beam when forming the shape data of the bag-like container 1, for example, the seal portion 3 A beam irradiation position control unit 33 that controls the oscillation device 20b of the optical scanning device 20 based on position data (for example, CAD data is used), and a moving speed of the laser beam tip set by the control parameter setting unit 31 (Hereinafter, referred to as a beam moving speed, which can also be referred to as a processing speed) is input and the optical scanning device 20 is set so as to obtain the beam moving speed. And a beam moving speed controller 34 which controls the rocking unit 20b.

なお、光走査装置２０を制御するビーム照射位置制御部３３には、レーザビームの照射位置データが具備されており、この照射位置データが光走査装置２０の揺動装置２０ｂに出力されることになる。この意味で、ビーム照射位置制御部３３は照射位置データ出力部ということもできる。   The beam irradiation position control unit 33 that controls the optical scanning device 20 includes laser beam irradiation position data, and this irradiation position data is output to the swing device 20b of the optical scanning device 20. Become. In this sense, the beam irradiation position control unit 33 can also be called an irradiation position data output unit.

次に、袋状容器１の製造方法について説明する。
互いに重ねられた状態で２枚のプラスチックフィルムＦが、回転ロール１１と押さえロール１７との間に導かれている状態において、レーザ出射装置１９から出射されたレーザビームＬは、モータ１５の貫通穴１６および支持軸部１１ａの貫通穴１３を通過し、空間室１２内に配置された光走査装置２０に入り、制御置２１からの指示により、袋状容器１のシール部３に対応する部分に向かってレーザビームＬが照射される。このレーザビームＬは、筒状部１１ｂを透過し、その外周に配置された吸収部材１１ｃにて吸収され、したがってこの部分が加熱されて、両プラスチックフィルムＦ同士が溶着することになる。つまり、シール部３が形成される。勿論、制御装置２１からの指令により、袋状容器１となるように、レーザビームＬが照射される。 Next, a method for manufacturing the bag-like container 1 will be described.
In a state where the two plastic films F are guided between the rotary roll 11 and the pressing roll 17 in a state of being overlapped with each other, the laser beam L emitted from the laser emitting device 19 is transmitted through the through hole of the motor 15. 16 and through the through hole 13 of the support shaft portion 11a, enters the optical scanning device 20 disposed in the space chamber 12, and is directed to a portion corresponding to the seal portion 3 of the bag-like container 1 by an instruction from the control device 21. A laser beam L is irradiated toward the head. The laser beam L passes through the cylindrical portion 11b and is absorbed by the absorbing member 11c disposed on the outer periphery thereof. Therefore, this portion is heated and the two plastic films F are welded together. That is, the seal part 3 is formed. Of course, the laser beam L is irradiated by the command from the control device 21 so as to form the bag-like container 1.

なお、回転ロール１１の加熱部分は回転して冷却ロール１８に接触することにより、冷却が行われ元の状態に戻された後、引き続き、レーザビームＬが照射されて、プラスチックフィルムＦの溶着が行われる。勿論、２枚のプラスチックフィルムＦは回転ロール１１と押さえロール１７とにより一定速度で送られている。   The heated portion of the rotating roll 11 is rotated and brought into contact with the cooling roll 18, and after cooling and returning to the original state, the laser beam L is continuously irradiated to weld the plastic film F. Done. Of course, the two plastic films F are fed by the rotating roll 11 and the pressing roll 17 at a constant speed.

ところで、レーザビームＬの強度および回転ロール１１の回転速度については、袋状容器１のシール部３が所定の強度を発揮し得るように調整されている。例えば、レーザ光の強度が一定にされると、レーザビームの移動速度が調整され、逆に、移動速度が一定にされると、レーザ光の出力が調整される。勿論、両者を調整することもできる。例えば、レーザ光の出力を調整することにより、溶着強度つまり接着強度を調整することができる。また、シール部３の幅を調整する必要がある場合には、レーザ出射装置１９からのレーザビームの出射経路途中に、ビーム幅を調整し得るビームエキスパンダを設けるようにしてもよい。   By the way, the intensity of the laser beam L and the rotational speed of the rotary roll 11 are adjusted so that the seal portion 3 of the bag-like container 1 can exhibit a predetermined intensity. For example, when the intensity of the laser light is made constant, the moving speed of the laser beam is adjusted. Conversely, when the moving speed is made constant, the output of the laser light is adjusted. Of course, both can be adjusted. For example, the welding strength, that is, the adhesive strength can be adjusted by adjusting the output of the laser beam. Further, when it is necessary to adjust the width of the seal portion 3, a beam expander that can adjust the beam width may be provided in the course of the emission path of the laser beam from the laser emission device 19.

なお、図２に示すように、例えば２つの充填室を有する複室の袋状容器１を形成する場合、その中間の仕切り部であるシール部３が剥離（２種類の液体を混合するため）し得るように、周囲のシール部３よりもその強度が弱くされるが、このような場合に、レーザ光の強度または溶着幅が調整される。   As shown in FIG. 2, for example, when a multi-chamber bag-like container 1 having two filling chambers is formed, the seal portion 3, which is an intermediate partition portion, is peeled off (to mix two kinds of liquids). In this case, the strength or welding width of the laser light is adjusted, although the strength thereof is weaker than that of the surrounding seal portion 3.

このように、レーザ出射装置１９ら出射されたレーザビームＬは、回転ロール１１内に配置された光走査装置２０を介して、その筒状部１１ｂの外周面に配置されたレーザ光の吸収部材１１ｃに照射され、当該回転ロール１１と押さえロール１７との間に導かれた２枚のプラスチックフィルムＦを溶かすとともに押さえロール１７による押圧力により、その加熱部が確実に溶着されて、シール部３が得られる。   As described above, the laser beam L emitted from the laser emitting device 19 passes through the optical scanning device 20 arranged in the rotary roll 11, and the laser beam absorbing member arranged on the outer peripheral surface of the cylindrical portion 11 b. The two plastic films F irradiated to 11c and guided between the rotary roll 11 and the pressing roll 17 are melted, and the heated portion is reliably welded by the pressing force of the pressing roll 17, so that the seal portion 3 Is obtained.

上述したように、プラスチックフィルムＦ同士を溶着させて袋状容器１を得る際に、２枚のプラスチックフィルムＦを押さえロール１７との間に導き押圧し得る回転ロール１１内に形成された空間室１２内にレーザビームＬを出射するとともに、この空間室１２内に配置された光走査装置２０により、このレーザビームＬを外周の筒状部１１ｂおよび吸収部材１１ｃに向かって照射して、シール部３を形成するようにしたので、袋状容器１の形状が変わった場合でも、制御装置２１により光走査装置２０を制御してレーザビームＬの照射位置を変更するだけで、簡単に対処することができる。すなわち、従来のように、ヒートシールバーを新しく製作する必要がないので、コストの低減化を図ることができる。   As described above, when the plastic film F is welded to obtain the bag-like container 1, the space chamber formed in the rotary roll 11 that can guide and press the two plastic films F between the pressing rolls 17. The laser beam L is emitted into the inside 12 and the laser beam L is radiated toward the cylindrical portion 11b and the absorbing member 11c on the outer periphery by the optical scanning device 20 disposed in the space chamber 12, thereby the seal portion. 3 is formed, even when the shape of the bag-like container 1 is changed, the control device 21 controls the optical scanning device 20 to change the irradiation position of the laser beam L. Can do. That is, since it is not necessary to newly manufacture a heat seal bar as in the prior art, the cost can be reduced.

ところで、上記実施の形態においては、レーザ出射装置をモータ側に配置したが、モータ側とは反対側に配置してもよい。
また、上記実施の形態においては、２枚のプラスチックフィルムを用いて袋状容器を製造する場合について説明したが、例えば３枚以上のプラスチックフィルムを用いて袋状容器を製造する場合にでも適用することができる。 By the way, in the said embodiment, although the laser emission apparatus was arrange | positioned at the motor side, you may arrange | position on the opposite side to the motor side.
Moreover, in the said embodiment, although the case where a bag-shaped container was manufactured using two sheets of plastic films was demonstrated, it applies, for example, also when a bag-shaped container is manufactured using three or more sheets of plastic films. be able to.

本発明の実施の形態に係るプラスチックフィルムの溶着装置にて得られる袋状容器の概略構成を示す正面図である。It is a front view which shows schematic structure of the bag-shaped container obtained with the welding apparatus of the plastic film which concerns on embodiment of this invention. 同製造される他の袋状容器の概略構成を示す正面図である。It is a front view which shows schematic structure of the other bag-like container manufactured. 本発明の実施の形態に係るプラスチックフィルムの溶着装置の概略構成を示すブロック図である。It is a block diagram which shows schematic structure of the welding apparatus of the plastic film which concerns on embodiment of this invention. 同溶着装置の概略構成を示す断面図である。It is sectional drawing which shows schematic structure of the welding apparatus. 図４のＡ−Ａ断面図である。It is AA sectional drawing of FIG.

符号の説明Explanation of symbols

Ｆ プラスチックフィルム
１ 袋状容器
２ 開口部
３ シール部
１１ 回転ロール
１１ａ 支持軸部
１１ｂ 筒状部
１１ｃ 吸収部材
１２ 空間室
１３ 貫通穴
１４ 弾性カップリング
１５ モータ
１６ 貫通穴
１７ 押さえロール
１８ 冷却ロール
１９ レーザ出射装置
２０ 光走査装置
２１ 制御装置
３１ 制御パラメータ設定部
３２ レーザ出力制御部
３３ ビーム照射位置制御部
３４ ビーム移動速度制御部 F Plastic film 1 Bag-like container 2 Opening part 3 Sealing part 11 Rotating roll 11a Supporting shaft part 11b Cylindrical part 11c Absorbing member 12 Space chamber 13 Through hole 14 Elastic coupling 15 Motor 16 Through hole 17 Holding roll 18 Cooling roll 19 Laser Emitting device 20 Optical scanning device 21 Control device 31 Control parameter setting unit 32 Laser output control unit 33 Beam irradiation position control unit 34 Beam moving speed control unit

Claims (2)

両端の支持軸部を介して回転自在に支持されるとともに内部に空間室が形成された回転ロール、およびこの回転ロールと並行に配置されて当該回転ロールとの間にプラスチックフィルムを導き押圧し得る押さえロールと、上記回転ロールの空間室内に配置されてレーザ出射装置から出射されるとともに当該回転ロールの一方の支持軸部内を通過されたレーザビームを当該回転ロールの筒状部に照射させる光走査装置とを具備し、
且つ上記回転ロールの筒状部をレーザビームを透過し得る透明材料で構成するとともにこの筒状部の外周面に、レーザ光を吸収し得る吸収部材を配置したことを特徴とするプラスチックフィルムの溶着装置。 A rotating roll that is rotatably supported via support shafts at both ends and has a space chamber formed therein, and a plastic film can be guided and pressed between the rotating roll and disposed in parallel with the rotating roll. Pressing roll and optical scanning that is arranged in the space chamber of the rotary roll and emits the laser beam emitted from the laser emitting device and passed through one support shaft of the rotary roll to the cylindrical part of the rotary roll A device,
Further, a plastic film is welded, wherein the cylindrical portion of the rotating roll is made of a transparent material capable of transmitting a laser beam, and an absorbing member capable of absorbing laser light is disposed on the outer peripheral surface of the cylindrical portion. apparatus. 回転ロールに接触して当該回転ロールを冷却し得る冷却ロールを具備したことを特徴とする請求項１に記載のプラスチックフィルムの溶着装置。   The apparatus for welding a plastic film according to claim 1, further comprising a cooling roll capable of cooling the rotating roll in contact with the rotating roll.
JP2008048912A 2008-02-29 2008-02-29 Plastic film welding equipment Expired - Fee Related JP5094472B2 (en)

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