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

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/72General 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
    • B29C66/723General 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
    • B29C66/7232General 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
    • B29C66/72321General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining 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"
    • B29C65/36Joining 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
    • B29C65/3604Joining 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
    • B29C65/3656Joining 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining 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"
    • B29C65/36Joining 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
    • B29C65/3668Joining 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining 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"
    • B29C65/36Joining 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
    • B29C65/3672Joining 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
    • B29C65/3676Joining 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
    • B29C65/368Joining 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74Joining 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
    • B29C65/745Joining 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint 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
    • B29C66/112Single lapped joints
    • B29C66/1122Single lap to lap joints, i.e. overlap joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/32Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/324Avoiding burr formation
    • B29C66/3242Avoiding burr formation on the inside of a tubular or hollow article
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/32Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/328Leaving the burrs unchanged for providing particular properties to the joint, e.g. as decorative effect
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/346Making joints having variable thicknesses in the joint area, e.g. by using jaws having an adapted configuration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/40General 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
    • B29C66/41Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43Joining a relatively small portion of the surface of said articles
    • B29C66/431Joining the articles to themselves
    • B29C66/4312Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/72General 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
    • B29C66/723General 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
    • B29C66/7232General 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
    • B29C66/72327General 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
    • B29C66/72328Paper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/73General 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
    • B29C66/737General 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
    • B29C66/7373Joining soiled or oxidised materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/73General 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
    • B29C66/739General 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
    • B29C66/7392General 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
    • B29C66/73921General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/812General 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
    • B29C66/8126General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/814General 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
    • B29C66/8141General 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
    • B29C66/81427General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/814General 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
    • B29C66/8141General 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
    • B29C66/81427General 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
    • B29C66/81429General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/814General 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
    • B29C66/8141General 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
    • B29C66/81431General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/818General 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
    • B29C66/8181General 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
    • B29C66/81811General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/818General 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
    • B29C66/8187General 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
    • B29C66/81871General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/82Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822Transmission mechanisms
    • B29C66/8221Scissor or lever mechanisms, i.e. involving a pivot point
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832Reciprocating joining or pressing tools
    • B29C66/8324Joining or pressing tools pivoting around one axis
    • B29C66/83241Joining or pressing tools pivoting around one axis cooperating pivoting tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834General 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
    • B29C66/8351Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83541Jaws 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
    • B29C66/83543Jaws 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/84Specific machine types or machines suitable for specific applications
    • B29C66/849Packaging machines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10Applying or generating heat or pressure or combinations thereof
    • B65B51/22Applying 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
    • B65B51/227Applying 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/71General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/812General 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
    • B29C66/8122General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General 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
    • B29C66/814General 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
    • B29C66/8141General 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
    • B29C66/81411General 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
    • B29C66/81421General 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
    • B29C66/81422General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2705/00Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B29K2705/02Aluminium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2995/00Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0003Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular electrical or magnetic properties, e.g. piezoelectric
    • B29K2995/0008Magnetic 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)
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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.
NL1031167C2 (nl) * 2006-02-16 2007-08-17 Smulders Machine En App Nbouw Inrichting voor het met elkaar verbinden van stroken kunststof foliemateriaal.
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)

* Cited by examiner, † Cited by third party
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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
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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