JPH08244728A - 液体充填チューブのヒートシール装置 - Google Patents

液体充填チューブのヒートシール装置

Info

Publication number
JPH08244728A
JPH08244728A JP4824495A JP4824495A JPH08244728A JP H08244728 A JPH08244728 A JP H08244728A JP 4824495 A JP4824495 A JP 4824495A JP 4824495 A JP4824495 A JP 4824495A JP H08244728 A JPH08244728 A JP H08244728A
Authority
JP
Japan
Prior art keywords
zone forming
seal zone
tube
heat
sealing
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
JP4824495A
Other languages
English (en)
Other versions
JP3413539B2 (ja
Inventor
Kojiro Hayashi
宏二郎 林
Fumiyuki Iwano
文幸 岩野
Michio Ueda
道雄 植田
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.)
Shikoku Kakoki Co Ltd
Original Assignee
Shikoku Kakoki Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shikoku Kakoki Co Ltd filed Critical Shikoku Kakoki Co Ltd
Priority to JP04824495A priority Critical patent/JP3413539B2/ja
Priority to EP19960200610 priority patent/EP0730946B1/en
Priority to DK96200610T priority patent/DK0730946T3/da
Priority to US08/611,667 priority patent/US5714033A/en
Priority to DE1996616398 priority patent/DE69616398T2/de
Priority to CN96102739A priority patent/CN1089672C/zh
Publication of JPH08244728A publication Critical patent/JPH08244728A/ja
Application granted granted Critical
Publication of JP3413539B2 publication Critical patent/JP3413539B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3604—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/3656—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint being a layer of a multilayer part to be joined, e.g. for joining plastic-metal laminates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3668—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the means for supplying heat to said heated elements which remain in the join, e.g. special induction coils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3672—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint
    • B29C65/3676—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic
    • B29C65/368—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic with a polymer coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C66/346—Making joints having variable thicknesses in the joint area, e.g. by using jaws having an adapted configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72327—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of natural products or their composites, not provided for in B29C66/72321 - B29C66/72324
    • B29C66/72328—Paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7373—Joining soiled or oxidised materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—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
    • 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
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81457—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a block or layer of deformable material, e.g. sponge, foam, rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8221—Scissor or lever mechanisms, i.e. involving a pivot point
    • 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
    • B29C66/8324—Joining or pressing tools pivoting around one axis
    • B29C66/83241—Joining or pressing tools pivoting around one axis cooperating pivoting 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83541—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws flying jaws, e.g. jaws mounted on crank mechanisms or following a hand over hand movement
    • B29C66/83543—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws flying jaws, e.g. jaws mounted on crank mechanisms or following a hand over hand movement cooperating flying jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—Packaging machines
    • B29C66/8491—Packaging machines welding through a filled container, e.g. tube or bag
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/22—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding
    • B65B51/227—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding by induction welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/12—Subdividing filled tubes to form two or more packages by sealing or securing involving displacement of contents
    • 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
    • B29C66/81421—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 convex or concave
    • B29C66/81422—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 convex or concave being convex
    • 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
    • B29C66/81429—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 comprising a single tooth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B29K2705/02—Aluminium
    • 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
    • B29K2995/0003—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular electrical or magnetic properties, e.g. piezoelectric
    • B29K2995/0008—Magnetic or paramagnetic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S53/00—Package making
    • Y10S53/02—High frequency electric sealing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1054—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing and simultaneously bonding [e.g., cut-seaming]

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Package Closures (AREA)
  • Supply Of Fluid Materials To The Packaging Location (AREA)
  • Closing Of Containers (AREA)

Abstract

(57)【要約】 【目的】 チューブの加圧時に、チューブのシール帯域
から液体をスムーズに排除し、完全なヒートシールを行
う。 【構成】 一方の加圧部材23の加圧面31に、チューブＴ
の切断予定部の両側を、これらにそってそれぞれ加圧す
るための互いに平行にのびた２つの上下加圧パッド34，
35を備える。他方の加圧部材24の加圧面36に、チューブ
Ｔの切断予定部の両側を、これらにそってそれぞれ加熱
するための互いに平行にのびた２つの上下真直部42，43
を有するＵ字状高周波コイル38を備える。他方の加圧部
材24の加圧面36の上下シール帯域形成部44，45を、第１
次シール帯域形成部51、第２次シール帯域形成部52およ
び第３次シール帯域53に区画する。両加圧部材23，24の
閉鎖時において、第１次シール帯域形成部51を、上下加
圧パッド34，35の先端面に対して平行となるように形成
するとともに、第２次シール帯域形成部52を、それぞれ
の外側にいくにしたがって上下加圧パッド34，35の先端
面に対して漸次遠ざかる方向に傾斜するように形成す
る。

Description

【発明の詳細な説明】
【０００１】
【産業上の利用分野】この発明は、液体飲料のような内
容物の充填されたチューブを容器１つ分に相当する長さ
毎に横断状にヒートシールする装置に関する。
【０００２】
【従来の技術】この種の従来装置として、特願平４−１
５４５６４号公報に開示されているように、アルミニウ
ム箔層を有するヒートシール性紙主体積層体製チューブ
を容器１つ分に相当する長さ毎に横断状に切断する前に
切断予定部の両側を、これらにそってそれぞれヒートシ
ールする液体充填チューブのヒートシール装置であっ
て、開閉自在な一対の加圧部材と、一方の加圧部材の加
圧面に備えられかつチューブの切断予定部の両側を、こ
れらにそってそれぞれ加圧するための互いに平行にのび
た２つの上下加圧パッドと、他方の加圧部材の加圧面に
備えられかつチューブの切断予定部の両側を、これらに
そってそれぞれ加熱するための互いに平行にのびた２つ
の上下真直部を有するＵ字状高周波コイルとを備えてお
り、他方の加圧部材の加圧面に、両加圧部材の閉鎖時に
おいて、上下加圧パッドによって加圧される上下シール
帯域形成部が形成されるようになされており、上下シー
ル帯域形成部が全帯域にわたって平坦で、両加圧部材の
閉鎖時において、上下加圧パッドの先端面と平行となる
ように形成されているものが知られている。
【０００３】
【発明が解決しようとする課題】上記従来装置では、上
下シール帯域形成部が、上下加圧パッドの先端面と平行
であるため、上下シール帯域形成部はその全帯域にわた
って均一な圧力で同時に加圧されることになる。
【０００４】ところで、この種装置において、ヒートシ
ールを良好に行うためには、チューブの加圧時に、チュ
ーブのシール帯域から液体をスムーズに排除することが
必要であるが、チューブの内面は必ずしも完全に平坦で
はなくて、ごく僅かな凹凸がある。そのため、上記のよ
うな均等加圧の仕方では凹凸に入った液体を排除するこ
とができず、シール帯域に残存した液体がシール不良の
原因となっていた。
【０００５】この発明の目的は、上記問題点を解決し、
チューブの加圧時に、チューブのシール帯域から液体を
スムーズに排除することができ、完全なヒートシールを
行うことのできる液体充填チューブのヒートシール装置
を提供することにある。
【０００６】
【課題を解決するための手段】この発明による液体充填
チューブのヒートシール装置は、アルミニウム箔層を有
するヒートシール性紙主体積層体製チューブを容器１つ
分に相当する長さ毎に横断状に切断する前に切断予定部
の両側を、これらにそってそれぞれヒートシールするチ
ューブのヒートシール装置であって、開閉自在な一対の
加圧部材と、一方の加圧部材の加圧面に備えられかつチ
ューブＴの切断予定部の両側を、これらにそってそれぞ
れ加圧するための互いに平行にのびた２つの上下加圧パ
ッドと、他方の加圧部材の加圧面に備えられかつチュー
ブの切断予定部の両側を、これらにそってそれぞれ加熱
するための互いに平行にのびた２つの上下真直部を有す
るＵ字状高周波コイルとを備えており、他方の加圧部材
の加圧面に、両加圧部材の閉鎖時において、上下加圧パ
ッドによって加圧される上下シール帯域形成部が形成さ
れる液体充填チューブのヒートシール装置において、上
シール帯域形成部が、これの高さ中間レベルＬを挟んで
その下側の第１次シール帯域形成部およびその上側の第
２次シール帯域形成部に区画されるとともに、下シール
帯域形成部が、これの高さ中間レベルＬを挟んでその上
側の第１次シール帯域形成部およびその下側の第２次シ
ール帯域形成部に区画されており、両加圧部材の閉鎖時
において、上下シール帯域形成部の第１次シール帯域形
成部が、上下加圧パッドの先端面に対して平行となるよ
うに形成されるとともに、上下シール帯域形成部の第２
次シール帯域形成部が、それぞれの外側にいくにしたが
って上下加圧パッドの先端面に対して漸次遠ざかる方向
に傾斜するように形成されていることを特徴とするもの
である。
【０００７】また、第２次シール帯域形成部の傾斜角度
が、４〜１０度であることが好ましい。
【０００８】さらに、上下シール帯域形成部の第１次シ
ール帯域形成部と第２次シール帯域形成部の境界の所要
か所に突条が設けられていてもよい。
【０００９】
【作用】この発明による液体充填チューブのヒートシー
ル装置では、上シール帯域形成部が、これの高さ中間レ
ベルＬを挟んでその下側の第１次シール帯域形成部およ
びその上側の第２次シール帯域形成部に区画されるとと
もに、下シール帯域形成部が、これの高さ中間レベルＬ
を挟んでその上側の第１次シール帯域形成部およびその
下側の第２次シール帯域形成部に区画されており、両加
圧部材の閉鎖時において、上下シール帯域形成部の第１
次シール帯域形成部が、上下加圧パッドの先端面に対し
て平行となるように形成されるとともに、上下シール帯
域形成部の第２次シール帯域形成部が、それぞれの外側
にいくにしたがって上下加圧パッドの先端面に対して漸
次遠ざかる方向に傾斜するように形成されているから、
チューブの加圧時に、上下シール帯域形成部のうち、第
１次シール帯域形成部によって容器の外側となる部分が
強く加圧され、ついで、第２次シール帯域形成部によっ
て容器の内側となる部分が外から内に向かって順次弱く
なるように加圧されていく。
【００１０】また、第２次シール帯域の傾斜角度が４度
に満たない場合、第２次シール帯域形成部による液排除
が十分でなく、傾斜角度が１０度を超える場合、第２次
シール帯域形成部による液排除が著しく、第１次シール
帯域形成部だけの効果となるが、第２次シール帯域の傾
斜角度が４〜１０度であれば、シール帯域が適切な加圧
力で加圧される。
【００１１】さらに、上下シール帯域形成部の第１次シ
ール帯域形成部と第２次シール帯域形成部の境界の所要
か所に突条が設けられていると、シール帯域形成部によ
る加圧に先駆けて、突条によってシール帯域形成部が加
圧される。
【００１２】
【実施例】この発明の実施例を、図面を参照してつぎに
説明する。
【００１３】図１に示すチューブＴは、ウェッブＷの一
方の縁部内面と他方の縁部外面を重ね合わせてヒートシ
ールすることにより形成されたものである。チューブＴ
内には飲料が充填されている。
【００１４】図２を参照すると、ウェッブＷは、容器の
外となる側より順次、外ポリエチレン層11、紙層12、接
着剤層13、アルミニウム箔層14および内ポリエチレン層
15で一体的に構成された積層体製である。
【００１５】ヒートシール装置は、チューブＴを液面下
において、容器１つ分に相当する長さ毎に横断状にヒー
トシールするもので、左右一対の揺動自在アーム21，22
と、これらの上部に向き合うように固定された開閉自在
な左右加圧部材23，24とを備えている。
【００１６】左加圧部材23の加圧面31には互いに平行に
のびた一対の上下水平条溝32，33が設けられ、これらに
ゴム製加圧パッド34，35が先端を突出させるようにはめ
入れられている。また、図示しないが、左加圧部材23に
は、チューブＴをシールと同時に切断するためのカッタ
が備えられている。右加圧部材24の加圧面36にはＵ字溝
37が設けられ、これに、銅製Ｕ字状高周波コイル38およ
び２つのフェライト製帯板状磁性体39がはめ入れられて
いる。Ｕ字溝32の直線部の間にはカッタ逃し溝40が形成
されている。
【００１７】高周波コイル38は、内部を冷却水通路41と
する角筒状のものであって、互いに平行にのびた一対の
上下真直部42，43を有している。両真直部42，43の一側
面は、右加圧部材24の加圧面36と面一となされている。
【００１８】図５に詳細に示すように、右加圧部材24の
加圧面36における高周波コイル38の上真直部42近傍にお
いて、上シール帯域形成部44が示されている。これは、
左右の加圧部材23，24の接近時に、上加圧パッド34の先
端面によって加圧される部分である。そして、上シール
帯域形成部44は、下から上にかけて、第１次シール帯域
形成部51、第２次シール帯域形成部52および第３次シー
ル帯域形成部53に区画されている。これらの各シール帯
域形成部は51〜53は、上シール帯域形成部44をほぼ３等
分している。図５において、第１次シール帯域形成部51
および第３次シール帯域形成部53は垂直であるが、第２
次シール帯域形成部52は垂直線に対して所定角度θだけ
傾斜させられている。したがって、左右加圧部材23，24
の閉鎖時には、第１次シール帯域形成部51および第３次
シール帯域形成部53は、上加圧パッド34の先端面と平行
になり、第２次シール帯域形成部52が、それぞれの外側
にいくにしたがって上加圧パッド34の先端面に対して漸
次遠ざかるように傾斜させられる。この第２次シール帯
域形成部52の傾斜角度θは７度であるが、これは、４〜
１０度の範囲で適宜選択される。
【００１９】一方、図４を参照すると、右加圧部材24の
加圧面36における高周波コイル38の下真直部43近傍にお
いて、下シール帯域形成部45が示されている。下シール
帯域形成部45もまた、第１次シール帯域形成部51、第２
次シール帯域形成部52および第３次シール帯域形成部53
に区画されているが、これらは、上シール帯域形成部44
のそれとは上下が逆で、上から下に順次連なっている。
【００２０】両真直部42，43の一側面の両端近くには、
偏平状チューブＷの幅より若干狭い間隔をおいて２つの
突条61が形成されている。これら突条61は、シールに際
しては、チューブ両縁部をそれぞれ強圧するためのもの
で、第１次シール帯域形成部51の縁部に第２次シール帯
域形成部52と接するように位置させられている。
【００２１】突条61の具体的な大きさを一例として、数
字を挙げて示すと、偏平状チューブの幅が１０２mmであ
り、チューブの厚みが０．４mmであるときに、突条61の
長さは１０mmであり、隣り合う突条61の間隔は８８mmで
ある。突条61の幅は０．６mmであり、高さは０．２mmで
ある。また、突条61の横断面輪郭は円弧状となされてお
り、その円弧の半径は０．３２５mmである。
【００２２】上記突条61の具体例に限定されることな
く、突条61の長さは、６mm〜１２mm、チューブの厚み
は、０．２mm〜０．５mmの範囲で変更可能である。ま
た、チューブの厚みをｔとするときに、突条61の幅は、
０．８ｔ〜２ｔ、高さは、０．０２ｔ〜０．０８ｔの範
囲で変更可能である。
【００２３】磁性体37は、コイル36の奥行き方向の寸法
に等しい幅と、これのほぼ５分の１程度の厚みをもつ横
断面方形状のもので、コイル36の上下真直部42，43の外
側にそうように配されている。
【００２４】図６を参照して、シール動作を詳しく説明
する。シールに際して、左右加圧部材23，24が閉鎖され
たとき、まず、突条61がチューブＴの両縁を加圧し、第
１次シール帯域形成部51、第２次シール帯域形成部52お
よび第３次シール帯域形成部53がチューブＴを順次加圧
力が弱くなるように加圧している。その状態で加熱する
と、シール帯域形成部44，45にあった溶融ポリエチレン
Ｐは容器の内外側となる部分に向かって押し出され、最
終的に、第１次シール帯域形成部51、第２次シール帯域
形成部52および第３次シール帯域形成部53のそれぞれと
対応する第１次シール帯域、第２次シール帯域および第
３次シール帯域が形成されることになり、シール状態
は、第１次シール帯域では完全な夾雑物のないシールが
得られ、第２次および第３次シール帯域では夾雑物を含
むシールとなる。
【００２５】上記において、第３次シール帯域形成部
は、第１次シール帯域形成部と平行に形成されている
が、これに代わり、第３次シール帯域形成部は、第２次
シール帯域形成部をそのまま延長させるように、第２次
シールと同じ角度だけ傾斜するように形成してもよい。
【００２６】
【発明の効果】請求項１記載の発明によれば、チューブ
の加圧時に、上下シール帯域形成部のうち、第１次シー
ル帯域形成部によって容器の外側となる部分が強く加圧
され、ついで、第２次シール帯域形成部によって容器の
内側となる部分が外から内に向かって順次弱くなるよう
に加圧されていくから、チューブの加圧後、シールのた
めに加熱されたときに、チューブのシール帯域形成部か
ら内面樹脂間に残存した液体と、溶融樹脂をスムーズに
排除することができ、第１次シール帯域に残存液のない
完全なヒートシールを行うことができる。
【００２７】請求項２記載の発明によれば、シール帯域
が適切な加圧力で加圧されるから、溶融した樹脂と、内
面樹脂間にごく僅かに残存した液が流れ第１次シール帯
域形成部に完全なシール部が得られる。
【００２８】請求項３記載の発明によれば、シール帯域
形成部による加圧に先駆けて、突条によってシール帯域
形成部が加圧されるから、シール帯域形成部から夾雑物
をあらかじめ排除することができる。
【図面の簡単な説明】
【図１】この発明による装置の概略正面図である。
【図２】この発明による装置によってシールされるチュ
ーブの構成図である。
【図３】この発明による装置の両加圧部材の斜視図であ
る。
【図４】この発明による装置の一方の加圧部材の断面図
である。
【図５】この発明による装置の両加圧部材の要部拡大断
面図である。
【図６】シール動作説明図である。
【符号の説明】
14 アルミニウム箔層 23，24 加圧部材 31，36 加圧面 34，35 加圧パッド 38 コイル 42，43 真直部 44，45 シール帯域形成部 51 第１次シール帯域形成部 52 第２次シール帯域形成部 61 突条 Ｔ チューブ θ 傾斜角度

Claims (3)

    【特許請求の範囲】
  1. 【請求項１】 アルミニウム箔層14を有するヒートシー
    ル性紙主体積層体製チューブＴを容器１つ分に相当する
    長さ毎に横断状に切断する前に切断予定部の両側を、こ
    れらにそってそれぞれヒートシールする液体充填チュー
    ブのヒートシール装置であって、 開閉自在な一対の加圧部材23，24と、 一方の加圧部材23の加圧面31に備えられかつチューブＴ
    の切断予定部の両側を、これらにそってそれぞれ加圧す
    るための互いに平行にのびた２つの上下加圧パッド34，
    35と、 他方の加圧部材24の加圧面36に備えられかつチューブＴ
    の切断予定部の両側を、これらにそってそれぞれ加熱す
    るための互いに平行にのびた２つの上下真直部42，43を
    有するＵ字状高周波コイル38と、 を備えており、 他方の加圧部材24の加圧面36に、両加圧部材23，24の閉
    鎖時において、上下加圧パッド34，35によって加圧され
    る上下シール帯域形成部44，45が形成されるようになさ
    れている、 液体充填チューブのヒートシール装置において、 上シール帯域形成部44が、これの高さ中間レベルを挟ん
    でその下側の第１次シール帯域形成部51およびその上側
    の第２次シール帯域形成部52に区画されるとともに、下
    シール帯域形成部45が、これの高さ中間レベルを挟んで
    その上側の第１次シール帯域形成部51およびその下側の
    第２次シール帯域形成部52に区画されており、両加圧部
    材23，24の閉鎖時において、上下シール帯域形成部44，
    45の第１次シール帯域形成部51が、上下加圧パッド34，
    35の先端面に対して平行となるように形成されるととも
    に、上下シール帯域形成部34，35の第２次シール帯域形
    成部52が、それぞれの外側にいくにしたがって上下加圧
    パッド34，35の先端面に対して漸次遠ざかる方向に傾斜
    するように形成されていることを特徴とする、 液体充填チューブのヒートシール装置。
  2. 【請求項２】 第２次シール帯域形成部51の傾斜角度θ
    が、４〜１０度である請求項１記載の液体充填チューブ
    のヒートシール装置。
  3. 【請求項３】 上下シール帯域形成部44，45の第１次シ
    ール帯域形成部51と第２次シール帯域形成部52の境界の
    所要か所に突条61が設けられている請求項１または２記
    載の液体充填チューブのヒートシール装置。
JP04824495A 1995-03-08 1995-03-08 液体充填チューブのヒートシール装置 Expired - Fee Related JP3413539B2 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP04824495A JP3413539B2 (ja) 1995-03-08 1995-03-08 液体充填チューブのヒートシール装置
EP19960200610 EP0730946B1 (en) 1995-03-08 1996-03-06 Heat-sealing device for liquid-filled tube
DK96200610T DK0730946T3 (da) 1995-03-08 1996-03-06 Anordning til varmeforsegling af et væskefyldt rør
US08/611,667 US5714033A (en) 1995-03-08 1996-03-06 Heat-sealing device for liquid-filled tube
DE1996616398 DE69616398T2 (de) 1995-03-08 1996-03-06 Vorrichtung zum Heissverschweissen von einem mit Flüssigkeit gefülltem Schlauch
CN96102739A CN1089672C (zh) 1995-03-08 1996-03-08 液体充填管热封装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP04824495A JP3413539B2 (ja) 1995-03-08 1995-03-08 液体充填チューブのヒートシール装置

Publications (2)

Publication Number Publication Date
JPH08244728A true JPH08244728A (ja) 1996-09-24
JP3413539B2 JP3413539B2 (ja) 2003-06-03

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Country Status (6)

Country Link
US (1) US5714033A (ja)
EP (1) EP0730946B1 (ja)
JP (1) JP3413539B2 (ja)
CN (1) CN1089672C (ja)
DE (1) DE69616398T2 (ja)
DK (1) DK0730946T3 (ja)

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Also Published As

Publication number Publication date
DK0730946T3 (da) 2001-11-12
DE69616398D1 (de) 2001-12-06
DE69616398T2 (de) 2002-09-05
CN1089672C (zh) 2002-08-28
US5714033A (en) 1998-02-03
EP0730946A3 (en) 1998-11-25
EP0730946A2 (en) 1996-09-11
CN1137464A (zh) 1996-12-11
JP3413539B2 (ja) 2003-06-03
EP0730946B1 (en) 2001-10-31

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