JPH04154564A - チューブ状包装材料のヒートシール装置 - Google Patents

チューブ状包装材料のヒートシール装置

Info

Publication number
JPH04154564A
JPH04154564A JP2282983A JP28298390A JPH04154564A JP H04154564 A JPH04154564 A JP H04154564A JP 2282983 A JP2282983 A JP 2282983A JP 28298390 A JP28298390 A JP 28298390A JP H04154564 A JPH04154564 A JP H04154564A
Authority
JP
Japan
Prior art keywords
straight parts
packaging material
coil
magnetic
outside
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
JP2282983A
Other languages
English (en)
Other versions
JP2571977B2 (ja
Inventor
Kojiro Hayashi
林　宏二郎
Fumiyuki Iwano
文幸 岩野
Yoichi Nishiguchi
西口　洋一
Hisao Takahashi
尚生 高橋
Masaaki Ogawa
小河　正昭
Yoshio Kobashi
小橋　吉雄
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
Jujo Paper Co Ltd
Original Assignee
Shikoku Kakoki Co Ltd
Jujo Paper 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, Jujo Paper Co Ltd filed Critical Shikoku Kakoki Co Ltd
Priority to JP28298390A priority Critical patent/JP2571977B2/ja
Priority to DK91202704T priority patent/DK0484998T3/da
Priority to US07/777,707 priority patent/US5250140A/en
Priority to EP19910202704 priority patent/EP0484998B1/en
Priority to DE69103731T priority patent/DE69103731T2/de
Publication of JPH04154564A publication Critical patent/JPH04154564A/ja
Application granted granted Critical
Publication of JP2571977B2 publication Critical patent/JP2571977B2/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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/745—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool
    • 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
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/324—Avoiding burr formation
    • B29C66/3242—Avoiding burr formation on the inside of a tubular or hollow article
    • 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
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/328—Leaving the burrs unchanged for providing particular properties to the joint, e.g. as decorative effect
    • 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
    • B29C66/70—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
    • B29C66/739—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 material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—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 material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—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 material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • 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
    • B29C66/81427—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
    • B29C66/81427—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
    • 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
    • B29C66/818—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
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    • 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
    • B29C66/8187—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 electrical insulating constructional aspects
    • B29C66/81871—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 electrical insulating constructional aspects of the welding jaws
    • 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
    • B29C66/80—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
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    • 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
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    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—Packaging machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • 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
    • B29C66/71—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 composition of the plastics material of the parts to be joined
    • 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
    • B29C66/80—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
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    • 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
    • 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

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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)
  • Closures For Containers (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 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
ーブ状包装材料を容器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。
従来の技術 この種の装置として、一対の加圧部材の一方の加圧面に
、アルミニウム箔層を有するヒートシール性紙主体積層
体製チューブ状包装材料の横断状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つの真直部を有するＵ字状高周波コイルが備えら
れているものは周知である。
そして、高周波コイルから発生する磁力線を２つの真直
部の内側に集中させて磁力線の有効利用を図るために、
２つの真直部の内側全体または局部的に磁性体が配置さ
れているものも知られている（特公昭５５−３２１５号
公報および特開昭６２−５２０２５号公報参照）。
また、２つの真直部に、これらのほぼ全長にわたっての
びた夾雑物排除用水平突条がそれぞれ設けられているも
のも知られている（特開昭５８−１３４７４４号公報参
照）。
発明か解決しようとする課題 上記磁性体を用いた装置では、第１０図に示すように、
チューブ状包装材料Ｔのシール部５１の容器内側となる
縁部に、波打った溶融樹脂ビード５２ができる。このよ
うなビード５２ができると、容器に外力が掛かった場合
、ビード５２の波の谷山の部分から亀裂が入り、容器が
破れるという問題点がある。上記のようなヒート５２が
できる原因としては、２つの真直部の内側に配置された
磁性体では、磁力線の有効利用は図れるが、２つの真直
部の外側に磁力線が拡散することは防止できず、２つの
真直部の外側の部分が不必要な温度まで加熱されるから
であると考えられる。
また、上記夾雑物排除用水平突条を設けた装置では、突
条により、シール部が全長にわたって強圧されるが、シ
ール部の全長にわたって均一に強圧することはできない
。なぜならば、チューブのシール部はその全長にわたっ
て包装材料の厚さが一定でなく、チューブの中央部には
継ぎ目が存在するし、チューブの両縁部にはチューブの
表側と裏側の連結部が存在する。とくに、チューブの継
ぎ目の部分では、包装材料が３倍厚となって重なってい
て他の部分より厚くなっているため、必要以上に加圧さ
れてその部分では包装材料の紙層が割れるという問題点
がある。
この発明の目的は、上記問題点を解決したチューブ状包
装材料のヒートシール装置を提供することにある。
課題を解決するための手段 この発明によるチューブ状包装材料のヒートシール装置
は、一対の加圧部材の一方の加圧面に、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状包
装材料の横断状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つの真直部
を有するＵ字状高周波コイルが備えられている、チュー
ブ状包装材料のヒートシール装置において、２つの真直
部のそれぞれ外側に、これらのほぼ全長にわたってのび
た２つの帯状磁性体が配置され、２つの真直部の全長の
うち、チューブの両縁部をそれぞれ強圧すべき４か所に
、真直部の長さ方向にのびた突条がそれぞれ設けられ、
突条の横断面輪郭が円弧状となされていることを特徴と
するものである。
作　　用 この発明によるチューブ状包装材料のヒートシール装置
では、２つの真直部のそれぞれ外側に、これらのほぼ全
長にわたってのびた２つの帯状磁性体が配置されている
から、２つの真直部から発生する磁力線が２つの真直部
の外側に拡散されようとしても、磁性体により内向きに
屈折される。
さらに、２つの真直部の全長のうち、チューブの両縁部
をそれぞれ強圧すべき４か所に、真直部の長さ方向にの
びた突条がそれぞれ設けられているから、チューブの両
縁部のみが局部的に強圧される。
また、突条の横断面輪郭が円弧状となされているから、
局部的強圧部、すなわちチューブ両縁部において包装材
料の紙層が破れることもない。
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。
チューブ状包装材料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り、ウェッブＷは、第４図に
示すように、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。
ヒートシール装置は、第５図に示すように、一対の揺動
自在アーム２１．２２の上部に向き合うように固定され
た一対の加圧部材２３．２４を備えている。
一方の加圧部材２３は、詳しく図示しないが、チューブ
をシールと同時に切断するためのカッタを備えているが
、この一方の加圧部材２３はこの発明と重要な関係が無
いため、以下、他方の加圧部材２４についてのみ説明す
る。
他方の加圧部材２４は、そのほぼ全体かエポキシ樹脂の
ような電気絶縁材料で形成されている。
この加圧部材２４には、第１図に示すように、互いに平
行にのびた２つの真直部２５．２６を有する銅製Ｕ字状
高周波コイル２７および２つの帯状ないし板状のフェラ
イト製磁性体２８が備えられている。
加圧部材２４の加圧面３１の高さの中程にコイル挿入Ｕ
字溝３２が形成されるとともに、Ｕ字溝３２の２つの真
直部２５．２６の外縁に接するように２つの磁性体挿入
両端開放直線溝３３が形成されている。また、Ｕ字溝の
内側にはカッタ挿入用直線溝３４か形成されている。
高周波コイル２７は、第２図に詳しく示すように、内部
を冷却水通路４１とする角筒状のものであり、その平坦
な一側面を加圧面４２とし、これを加圧部材２４の加圧
面３１と面一とするように溝３２に挿入されている。高
周波コイル２７の加圧面４２には突条４３が形成されて
おり、これは、第１図に示すように、高周波コイル２７
の２つの真直部２５．２５の両端近くの４か所にそれぞ
れ存在し、これら突条４３は、シールに際しては、第６
図に示すように、チューブ両縁部をそれぞれ強圧するこ
とになる。
第６図を参照して、突条４３の具体的な大きさを一例と
して、数字を挙げて示すと、チューブＴの幅ｇが１０２
ｍｍであり、包装材料の厚みｔが０．４龍であるときに
、突条４３の長さしは１０關であり、隣り合う突条４３
の間隔Ｐは８８龍である。さらに、第３図を参照すると
、突条４３の幅Ｂは０．６＋＋＋＋ｅであり、高さＨは
０．２ｍ＋ｓである。また、突条４３の横断面輪郭は円
弧状となされており、その円弧の半径Ｒは０．３２５＋
ａｍである。
上記突条４３の具体例に限定されることなく、６　ｍｍ
≦Ｌ≦１２ｍ１１．０．　２ｕｕ＋＋≦ｔ≦０．５ｍｍ
の範囲で変更可能である。また、包装材料の厚みｔに対
して、０．８ｔ≦Ｂ≦２ｔ、０．０２ｔ≦Ｈ≦０．０８
ｔの範囲で変更可能である。
磁性体２８は、第２図に示すように、コイル２７の奥行
き方向の一寸法に等しい幅Ｍと、これのほぼ５分の１程
度の厚みＮをもつ横断面方形状のものである。
つぎに、第７図および第８図を参照して、磁性体２８の
作用について説明すると、第７図のように、磁性体２８
が用いられていない場合、コイル２７から発生する磁力
線Ｇは滑らかな楕円を幾つも重ねたように拡がり、コイ
ル２７の外側にも拡散する。ところが、第８図に示すよ
うに、コイル２７の外側に磁性体２８が存在すると、コ
イル２７の外側へ拡散しようとする磁力線Ｇは磁性体２
８の方向、すなわち内向きに屈折され、磁性体２８の外
側へは拡散されなくなる。そのため、第８図に矢印Ａで
示す包装材料のコイル２７より外側の部分は加熱され難
くなる。そのため、第９図に示すように、シールの後、
切断予定部４５の両側にはシール部４６かそれぞれてき
るが、シール部４６の容器内側となる縁部４７に余分な
溶融ポリエチレンのビードはできない。
発明の効果 この発明によれば、２つの真直部から発生する磁力線が
２つの真直部の外側に拡散されようとしても、磁性体に
より内向きに屈折されるから、包装材料のコイルより外
側の部分、すなわちシール部の容器内側となる縁部が不
必要な温度まで加熱されることが防止される。
さらに、チューブの両縁部のみが局部的に強圧されるか
ら、シール不良か生じ易いチューブの両縁部は確実にシ
ールすることができ、チューブの中央部において包装材
料の紙層が割れるということを防止できる。
さらに、局部的強圧部、すなわちチューブ両縁部におい
て包装材料の紙層が破れる二ともないから、シール部全
体を確実にシールすることかできる。
【図面の簡単な説明】
第１図〜第９図はこの発明の実施例を示し、第１図は一
方の加圧部材の斜視図、第２図は第１図の■−■線にそ
う拡大断面図、第３図は突条の詳細を示す横断面図、第
４図は包装材料ウェッブの断面図、第５図は装置の概略
構成図、第６図はチューブ状包装材料とコイルの突条の
相対的な位置関係を示す説明図、第７図および第８図は
いずれも磁性体の作用を説明するための説明図、第９図
はこの発明による装置によりシールされた包装材料の破
砕断面を含む斜視図である。 第１０図は従来の装置によりシールされた包装材料の破
砕断面を含む斜視図である。 ２３、２４・・・加圧部材、２５．２６・・・真直部、
２７・・・コイル、２８・・・磁性体、３１・・・加圧
面、４３・・・突条、Ｔ・・・チューブ状包装材料。

Claims (1)

  1. 【特許請求の範囲】 　一対の加圧部材２３、２４の一方の加圧面３１に、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
    体製チューブ状包装材料Ｔの横断状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つの真直部２５、２６を有するＵ字状高周波コ
    イル２７が備わっている、チューブ状包装材料のヒート
    シール装置において、 ２つの真直部２５、２６のそれぞれ外側に、これらのほ
    ぼ全長にわたってのびた２つの帯状磁性体２８が配置さ
    れ、 ２つの真直部２５、２６の全長のうち、チューブＴの両
    縁部をそれぞれ強圧すべき４か所に、真直部２５、２６
    の長さ方向にのびた突条４３がそれぞれ設けられ、突条
    ４３の横断面輪郭が円弧状となされていることを特徴と
    する、チューブ状包装材料のヒートシール装置。
JP28298390A 1990-10-19 1990-10-19 チューブ状包装材料のヒートシール装置 Expired - Fee Related JP2571977B2 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP28298390A JP2571977B2 (ja) 1990-10-19 1990-10-19 チューブ状包装材料のヒートシール装置
DK91202704T DK0484998T3 (da) 1990-10-19 1991-10-18 Apparat til varmeforsegling af et slangeformet emballeringsmateriale
US07/777,707 US5250140A (en) 1990-10-19 1991-10-18 Device having raised side edge portions for heat-sealing tubular packaging material
EP19910202704 EP0484998B1 (en) 1990-10-19 1991-10-18 Appareil pour thermosoudage d'un matériau d'emballage tubulaire
DE69103731T DE69103731T2 (de) 1990-10-19 1991-10-18 Vorrichtung zum Heisssiegeln von schlauchförmigem Verpackungsmaterial.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28298390A JP2571977B2 (ja) 1990-10-19 1990-10-19 チューブ状包装材料のヒートシール装置

Publications (2)

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JPH04154564A true JPH04154564A (ja) 1992-05-27
JP2571977B2 JP2571977B2 (ja) 1997-01-16

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US (1) US5250140A (ja)
EP (1) EP0484998B1 (ja)
JP (1) JP2571977B2 (ja)
DE (1) DE69103731T2 (ja)
DK (1) DK0484998T3 (ja)

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EP0730946A3 (en) * 1995-03-08 1998-11-25 Shikoku Kakoki Co., Ltd. Heat-sealing device for liquid-filled tube
JP2016533980A (ja) * 2013-09-13 2016-11-04 テトラ・ラヴァル・ホールディングス・アンド・ファイナンス・ソシエテ・アノニムＴｅｔｒａ Ｌａｖａｌ Ｈｏｌｄｉｎｇｓ ＆ Ｆｉｎａｎｃｅ Ｓ．Ａ． 誘導式シール装置及び誘導式シール装置を製造する方法
JP2017513738A (ja) * 2014-04-16 2017-06-01 テトラ ラバル ホールディングス アンド ファイナンス エス エイ インダクションシーリング装置及びインダクションシーリング装置を用いた包装材料のシーリング方法
US10350832B2 (en) 2014-11-24 2019-07-16 Tetra Laval Holdings & Finance S.A. Simplified transversal induction sealing device
US10899082B2 (en) 2017-07-17 2021-01-26 Tetra Laval Holdings & Finance S.A. Inductor coil for induction welding of a packaging material
US10994495B2 (en) 2015-11-27 2021-05-04 Tetra Laval Holdings & Finance S.A. Sealing device with increased robustness
US11370571B2 (en) 2017-07-18 2022-06-28 Tetra Laval Holdings & Finance S.A. Induction sealing device
US11534985B2 (en) 2016-05-02 2022-12-27 Tetra Laval Holdings & Finance S.A. Induction sealing system
US11548238B2 (en) 2018-09-10 2023-01-10 Tetra Laval Holdings & Finance S.A. Method for forming a tube and a method and a packaging machine for forming a package
US11554555B2 (en) 2017-05-30 2023-01-17 Tetra Laval Holdings & Finance S.A. Apparatus for sealing the top of a package for a food product and system for forming and filling a food package
US11820540B2 (en) 2018-09-11 2023-11-21 Tetra Laval Holdings & Finance S.A. Packaging apparatus for forming sealed packages
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JP3881059B2 (ja) * 1996-01-30 2007-02-14 日本テトラパック株式会社 シール装置
US6167681B1 (en) 1996-01-30 2001-01-02 Tetra Laval Holdings & Finance S.A. Sealing apparatus
SE506190C2 (sv) * 1996-03-20 1997-11-17 Tetra Laval Holdings & Finance Anordning och metod för induktionsförsegling av termoplastbelagt förpackningsmaterial
JP4326043B2 (ja) * 1998-08-10 2009-09-02 四国化工機株式会社 ヒートシール装置
JP4127907B2 (ja) * 1998-09-28 2008-07-30 四国化工機株式会社 高周波ヒートシール装置
JP4232922B2 (ja) * 1998-10-30 2009-03-04 日本テトラパック株式会社 ヒートシール装置及び充填機
JP4282179B2 (ja) * 1999-09-30 2009-06-17 四国化工機株式会社 超音波シール装置
US6725630B2 (en) 2001-11-15 2004-04-27 Sonoco Development, Inc. Method for induction sealing a plastic part to a composite container
ES2266382T3 (es) * 2002-10-24 2007-03-01 TETRA LAVAL HOLDINGS & FINANCE S.A. Mordaza de soldar.
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JP5779291B1 (ja) 2014-08-22 2015-09-16 一夫 菱沼 重ね部段差に適応しうる複合ヒートシール構造
DE102018203904A1 (de) * 2018-03-14 2019-09-19 Robert Bosch Gmbh Vorrichtung zum Siegeln einer Verpackung
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Cited By (13)

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Publication number Priority date Publication date Assignee Title
EP0730946A3 (en) * 1995-03-08 1998-11-25 Shikoku Kakoki Co., Ltd. Heat-sealing device for liquid-filled tube
JP2016533980A (ja) * 2013-09-13 2016-11-04 テトラ・ラヴァル・ホールディングス・アンド・ファイナンス・ソシエテ・アノニムＴｅｔｒａ Ｌａｖａｌ Ｈｏｌｄｉｎｇｓ ＆ Ｆｉｎａｎｃｅ Ｓ．Ａ． 誘導式シール装置及び誘導式シール装置を製造する方法
US10307966B2 (en) 2013-09-13 2019-06-04 Tetra Laval Holdings & Finance S.A. Induction sealing device and method for manufacturing an induction sealing device
JP2017513738A (ja) * 2014-04-16 2017-06-01 テトラ ラバル ホールディングス アンド ファイナンス エス エイ インダクションシーリング装置及びインダクションシーリング装置を用いた包装材料のシーリング方法
US10350832B2 (en) 2014-11-24 2019-07-16 Tetra Laval Holdings & Finance S.A. Simplified transversal induction sealing device
US10994495B2 (en) 2015-11-27 2021-05-04 Tetra Laval Holdings & Finance S.A. Sealing device with increased robustness
US11534985B2 (en) 2016-05-02 2022-12-27 Tetra Laval Holdings & Finance S.A. Induction sealing system
US11554555B2 (en) 2017-05-30 2023-01-17 Tetra Laval Holdings & Finance S.A. Apparatus for sealing the top of a package for a food product and system for forming and filling a food package
US10899082B2 (en) 2017-07-17 2021-01-26 Tetra Laval Holdings & Finance S.A. Inductor coil for induction welding of a packaging material
US11370571B2 (en) 2017-07-18 2022-06-28 Tetra Laval Holdings & Finance S.A. Induction sealing device
US11548238B2 (en) 2018-09-10 2023-01-10 Tetra Laval Holdings & Finance S.A. Method for forming a tube and a method and a packaging machine for forming a package
US11820540B2 (en) 2018-09-11 2023-11-21 Tetra Laval Holdings & Finance S.A. Packaging apparatus for forming sealed packages
US12122547B2 (en) 2019-02-05 2024-10-22 Tetra Laval Holdings & Finance S.A. Induction heat sealing device and a method for transversally seal a tube of packaging material

Also Published As

Publication number Publication date
JP2571977B2 (ja) 1997-01-16
EP0484998A1 (en) 1992-05-13
EP0484998B1 (en) 1994-08-31
DE69103731D1 (de) 1994-10-06
DK0484998T3 (da) 1994-10-03
DE69103731T2 (de) 1995-01-12
US5250140A (en) 1993-10-05

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