SE433322B - Anordning for vermeforsegling av forpackningslaminat - utformning av forseglingsbacken - Google Patents

Anordning for vermeforsegling av forpackningslaminat - utformning av forseglingsbacken

Info

Publication number
SE433322B
SE433322B SE8105960A SE8105960A SE433322B SE 433322 B SE433322 B SE 433322B SE 8105960 A SE8105960 A SE 8105960A SE 8105960 A SE8105960 A SE 8105960A SE 433322 B SE433322 B SE 433322B
Authority
SE
Sweden
Prior art keywords
laminate
sealing
area
ridge
working surface
Prior art date
Application number
SE8105960A
Other languages
English (en)
Other versions
SE8105960L (sv
Inventor
R Cetrelli
Original Assignee
Tetra Pak Int
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20344738&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SE433322(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Tetra Pak Int filed Critical Tetra Pak Int
Priority to SE8105960A priority Critical patent/SE433322B/sv
Priority to AT82108969T priority patent/ATE24437T1/de
Priority to DE8282108969T priority patent/DE3274819D1/de
Priority to EP19820108969 priority patent/EP0076966B1/en
Priority to ZA827298A priority patent/ZA827298B/xx
Priority to NO823345A priority patent/NO163178C/no
Priority to DK441982A priority patent/DK158502C/da
Priority to CA000412928A priority patent/CA1200749A/en
Priority to SU823505248A priority patent/SU1635897A3/ru
Priority to UA3505248A priority patent/UA5967A1/uk
Priority to ES1982279693U priority patent/ES279693Y/es
Priority to BR8205892A priority patent/BR8205892A/pt
Priority to JP57177486A priority patent/JPS58134744A/ja
Priority to AU89214/82A priority patent/AU552656B2/en
Priority to CA000419047A priority patent/CA1211356A/en
Publication of SE8105960L publication Critical patent/SE8105960L/sv
Publication of SE433322B publication Critical patent/SE433322B/sv
Priority to MYPI87000753A priority patent/MY100421A/en
Priority to KE374187A priority patent/KE3741A/xx
Priority to HK22188A priority patent/HK22188A/xx
Priority to JP26234392A priority patent/JPH0729382B2/ja
Priority to LV930960A priority patent/LV5434A3/xx
Priority to LTRP999A priority patent/LT2511B/xx
Priority to JP17434894A priority patent/JP2501777B2/ja
Priority to GEAP19942288A priority patent/GEP19970668B/en
Priority to JP21880596A priority patent/JP3175118B2/ja

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
    • B29C66/80—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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—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
    • B29C65/3672—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint
    • B29C65/3676—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic
    • B29C65/368—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic with a polymer coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/326—Shaping the burr, e.g. by the joining 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
    • B29C66/32—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
    • B29C66/3282—Leaving the burrs unchanged for providing particular properties to the joint, e.g. as decorative effect for reinforcing the joint
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—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
    • 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
    • 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
    • B29C66/739—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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30—Electrical means
    • B29C65/305—Electrical means involving the use of cartridge heaters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C66/71—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
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8122—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8126—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/81262—Electrical and dielectric properties, e.g. electrical conductivity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81463—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
    • B29C66/81465—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint one placed behind the other in a single row in the feed direction
    • 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
    • B29C66/816—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 mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—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 mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8242—Pneumatic or hydraulic drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products

Description

810596U-2 f! Ett ändamål med föreliggande uppfinning är att om- besörja en anordning för värmeförseglinq av förpackningslaminatet av ovannämnda typ. Anordninqen skall säkerställa att en försegling med optimala egenskaper erhålles även om de material som skall förseglas ej är helt fria från föroreningar. _ Ett ytterligare ändamål med föreliggande uppfinning är att ombesörja en anordning för värmeförsegling av förpacknings- laminat, vilken anordning ej är behäftad med tidigare kända anordning- ars nackdelar samt enkel och tillförlitlig till konstruktionen.
Anordningen skall vidare vara möjlig att använda i kända typer av förpackningsmaskiner samt vara möjlig att framställa till låg kostnad.
V Dessa och andra ändamål har enligt uppfinningen upp- nåtts genom att en anordning för värmeförsegling av förpacknings- laminat som innefattar ett utvändigt, termoplastiskt materialskikt genom att termoplastskikten inom en föreseglingszon bringas att an- ligga mot varandra och temporärt uppvärmas till förseglingstemperatur vilken anordning innefattar en långsträckt förseglingsback med en mot laminatet anpressbar arbetsyta getts kännetecknet att arbetsytan innefattar ett laminatet uppvärmande område, som omfattar dels en linjeformig ås, dels ett angränsande, lägre område vid sidan av åsen. Genom att förse det laminatet uppvärmande området med såväl en ås som ett angränsande, lägre område erhålles en back som då den anpressas mot två sammanlagda förpackningslaminat åstadkommer en för- seglingszon med ett linjeformigt narti i vilket laminaten anpressas mot två sammanlagda förpackningslaminat åstadkommer en förseglingszon med ett linjeformigt parti i vilket laminaten anpressas mot varandra med mycket högt tryck, varigenom den uppvärmda termoplasten kommer att med hög hastighet pressas från det linjeformiga omrâdet till angränsande område så att en effektiv blandning och därmed god för- segling erhålles på tidigare beskrivet sätt. Föredragna utföringsformer av anordningen enligt uppfinningen har vidare getts de av underkraven framgående kännetecknen.
En föredragen utföringsform av såväl sättet som anordningen enligt uppfinningen kommer nu att beskrivas närmare under särskild hänvisning till bifogade, schematiska ritning som blott visar de för förståelse av uppfinningen nödvändiga detaljerna.
Fig. l visar i förstoring ett tvärsnitt genom ett förpackningslaminat av en typ som kan värmeförseglas med hjälp av sättet och anordningen enligt uppfinningen.
Fig. 2 visar i förstoring ett tvärsnitt genom en För-anal -i nr-rehanïz enl 1:11- rmnFí 'nni 'noen . 8105960-2 Fig. 3 är ett snitt genom två förpackningslaminat enligt fig. l som värmeförseglas med hjälp av sättet och anordningen enligt uppfinningen ett centralt bärarskikt l av fibröst material, vilket skikt l på ömse sidor är omgivet av jämförelsevis tunna, homogena skikt 2,3 av termo- laminaten mellan sig har ett skikt av termoplastiskt material.
Fig. 2 visar i sektion ett tvärsnitt genom en förseglingsback 5 vid anordningen enligt uppfinningen. kroppens 6 omgivande delar förseglingsbackens 5 arbetsyta 8. Arbets- ytan 8 uppvisar en i skenan 7 formad, linjeformig äs 9. Åsen 9 vid sidan av åsen. Det laminatet uppvärmande området är via materialet i skenan 7 förbindbart med en strömkälla, vilken kan vara av hög- frekvent typ för att möjliggöra -' iixàïlz-Å-'lci 'V í- :kf , . massan-z i högfrekvenssvetsning av laminat som innefattar aluminiumfolie. Det laminatet uppvärmande området eller skenan 7 kan även vara uppvärmbart och till exempel utgöras av ett elektriskt motstândsmaterial då förpackningslaminat utan aluminiumfolie eller andra elektriskt ledande skikt skall förenas med varandra.
Förseglingsbacken enligt uppfinningen kan inom ramen för uppfinningstanken modifieras på olika sätt för att motsvara de krav som förseglingen av olika material och olika typer av förpack- ningsbehållare ställer. Typiska sådana modifieringar kan vara att förseglingsbacken förses med en eller flera kanaler för ett kylande vilket hindrar skadliga temperaturhöjningar eller oönskad spridning av värme till angränsande omrâden,_som skall förbli ouppvärmda. Det är även möjligt att utforma förseglíngsbacken i flera, inbördes rörliga delar. Exempelvis kan de på ömse sidor av âsen 9 belägna partierna av förseglingsbacken utföras rörliga i förhållande till âsen 9 och fjäderbelastas i ritning mot materialet, så att ett anpassat anliggningstryck automatiskt uppkommer.
Förseglingsbacken kan också vara dubbel d.v.s. innefatta två på avstånd från varandra anordnade huvudkroppar av den beskrivna typen.
Denna utföringsform är särskilt lämplig då en förpaokningsmaterialtub skall avförseglas, d.v.s. förseglas i två transversella zoner och avskäras mellan dessa, medium, t.ex. vatten, eftersom en kniv eller något annat lämpligt skärorgan då kan arbeta i utrymmet mellan förseglingsbaokens båda huvudkroppar.
Fig. 3 illustrerar förseglingsförloppet vid hopförseglingen av tvâ förpackningslaminat med hjälp av anordningen enligt uppfinningen. Två förpaekningslaminat 10, ll (eller två delar av samma, vikta förpaokningslaminat) har såsom en förberedelse till förseglingen förts samman så att de anligger mot varandra med sina utvändiga termoplastskikt 3. Förpackningslaminaten anpressas mot varandra med hjälp av en förseglingsback 5 och en med denna samverkande, på motsatt sida av förpackningslaminaten anliggande motback 12 (indikeras medelst punktstreckade linjer).
Förseglingsbacken 5 är av den typ som visas i fig. 2 under det att motbacken 12 uppvisar en mot laminatet ll anliggande, plan arbetsyta.
Backarna 5, 12 är så upphängda 1 förpackningsmaskinens inte visade fundament att de medelst hydrauliska eller mekaniska drivorgan är förflyttbara fram och åter så att de under förseglingen kan anpressas »Är :vgífyr-s-s 'e- f 61 ofšëåšid-z mot varandra med en viss, reglerbar kraft. Samtidigt som backarna förflyttas mot varandra och börjar sammanpressa de mellanliggande förpaokningslaminaten 10, ll förbindes förseglingsbackens 5 skena 7 med en nögfrekvent strömkälla. Härvid induceras ett växelfält i för- packningslaminatens aluminiumskikt H, så att dessa inom ett mot skenans 7 yta svarande omrâde uppvärmes till en temperatur som är avsevärt nögre än smälttemperaturen för intilliggande termoplastskikt. Den alstrade värmen ledes omedelbart över till de båda mellan aluminiumskikten belägna termoplastskikten 5 så att dess smälter ocn blir flytande. På grund av den höga kraft ca 9800k2a vilken förpackningslaminaten anpressa: mot varandra 1 jämnnöjd med àsen 9, kommer smält termoplastmaterial att flyta eller strömma från området l3 med högt tryck till angränsande delar 14 av den totala förseglingszonen 13,14. Eftersom de mot varandra anliggande termoplastskikten 3 i området utanför förseglingszonen l3,l4 fortfarande befinner sig 1 fast tillstånd ocn anpressas mot varandra kan den smälta termoplasten ej flyta vidare utanför förseglingszonen utan kvarstannar i de båda med nänvisningsbeteokningen l4 indikerade områdena, där den genom komprimering av bärarskiktmaterialet formar parallellt med det lángsträckta tryckomrâdet 13 löpande vulster 15, i vilka termoplaste från de båda med varandra förseglade skikten är blandade. I området 13 kvarstannar endast obetydliga mängder plastmaterial som p.g.a. ytornas ojämnhet etc. ej kunnat undanträngas, under det att på ömse sidor av området de bildade vulsterna 15 innehåller ett överskott av väl blandad plast, som ombesörjer en mycket stark och i praktiken obrytbar försegling mellan de båda skikten. Eftersom strömningen frå: området 13 till områdena lä är så snabb uppkommer turbulens i den strömmande plasten, vilket säkerställer att plasten från de båda mot varandra anliggande skikten blandas väl så att eventuell ytoxidation eller andra på ytan befintliga föroreningar (t.ex. från kvarblivande fyllgodsrester) effektivt blandas in i plasten så att någon sammanhängande hinna av föroreningar som försämrar förseglingens styrka ej kommer att finnas kvar.
För att ytterligare säkerställa att vulsterna eller ansamlingarna 15 av smält termoplast får ett begränsat, linjeformigt utseende, kan de utanför förseglíngszonen l3,1H befintliga delarna av de båda plastlaminaten tillföras kyla. Detta kan antingen ske genom _.. ._-.- - aa-»nr- 1 V _..' .- l 3105960-2 " att de båda backarna 5,12 förses med utanför förseglingsområdet liggande, vätskegenomflutna kylkanaler eller genom att fyllgodset vid den typ av försegling som sker under samtidig undanträngning av fyll- godset tillåtes kyla angränsande delar av förpackningslaminaten.
För att säkerställa en effektiv strömning av smält termonlast från det centrala området 13 till angränsande områdena 14 måste anpressningen av åsen 0 mot förpackningslaminaten ske med sådan kraft att yttrycket 1 förseglinqszonens linjeformiqa område 13 uppgår till ca 98 kPa samtidigt som termoplastens temperatur bör äverstiqa sa 13o° c. ,..,, _» .- f ï-|._ rg-'g-Å! .w v, :La-ß ;'.'_1;-_._= =

Claims (6)

' " ' " ' a1oš9eo-2 PATENTKRAV
1. l. Anordning för värmeförsegling av törpackningslaminat som innefattar ett utvändigt, termoplastiskt materialskikt genom att ter- moplastskikten inom en förseglingszon bringas att anligga mot varandra och temporärt uppvärmas till förseglingstemperatur, vi1ke~ anordning inneiattar en långsträckt förseglingshack (3) men en »ff laminatet anpressoar arbetsyta (8), k ä n n e t e c k n a d d ä r a v, att arbetsytan (6) innefattar ett laminatet uppvärmande omrâde, som omfattar dels en linjeformig ås (9), dels ett angränsande, lägre område vid sidan av âsen (9).
2. ¿. Anordning enligt patentkravet 1, k ä n n e t e c k n a d d ä r a v, attåsen (9) har en höjd av 0,2-0,8 ggr laminatets tjocklek.
3. Anordning enligt patentkraven l eller 2, k ä n n e t e c k n a a d ä r a v, att àsens (9) bredd är huvudsak- ligen lika med laminatets tjocklek.
4. Anordning enligt ett eller flera av patentkraven l t o m 3, k ä n n e t e c k n a d d ä r a-y, att det laminatet uppvärmande området utgöres av ett elektriskt ledande material, vilket är förbindbart med en högfrekvent strömkälla.
5. Anordning enligt ett eller flera patentkraven 1 t.o.m. 3, k ä n n e t e c k n a d d ä r a v, att ett laminatet uppvärmande området utgöres av elektriskt motståndsmaterial.
6. Anordning enligt ett eller flera av föregående patentkrav, k ä n n e t e c k n a d d ä r a v, att arbetsytan (8) även innefattar utanför det uppvärmbara området belägna, lamínatet kylande delar.
SE8105960A 1981-10-08 1981-10-08 Anordning for vermeforsegling av forpackningslaminat - utformning av forseglingsbacken SE433322B (sv)

Priority Applications (24)

Application Number Priority Date Filing Date Title
SE8105960A SE433322B (sv) 1981-10-08 1981-10-08 Anordning for vermeforsegling av forpackningslaminat - utformning av forseglingsbacken
AT82108969T ATE24437T1 (de) 1981-10-08 1982-09-28 Verfahren und vorrichtung zum heissiegeln von verpackungsschichtstoffen.
DE8282108969T DE3274819D1 (en) 1981-10-08 1982-09-28 A method and an arrangement for the heat-sealing of packing laminate
EP19820108969 EP0076966B1 (en) 1981-10-08 1982-09-28 A method and an arrangement for the heat-sealing of packing laminate
DK441982A DK158502C (da) 1981-10-08 1982-10-05 Fremgangsmaade og apparat til varmeforsegling af emballagematerialer
ZA827298A ZA827298B (en) 1981-10-08 1982-10-05 A method and an arrangement for the heat-sealing of packing laminate
NO823345A NO163178C (no) 1981-10-08 1982-10-05 Anordning for varmeforsegling av to lag av emballasjematerial.
CA000412928A CA1200749A (en) 1981-10-08 1982-10-06 Method and an arrangement for the heat-sealing of packing laminate
SU823505248A SU1635897A3 (ru) 1981-10-08 1982-10-06 Способ тепловой герметизации упаковочного ламината
UA3505248A UA5967A1 (uk) 1981-10-08 1982-10-06 Спосіб теплової герметизації пакувального ламінату
ES1982279693U ES279693Y (es) 1981-10-08 1982-10-07 Un metodo y una instalacion para la soldadura por calor de un estratificado para envasado
BR8205892A BR8205892A (pt) 1981-10-08 1982-10-07 Processo e arranjo para a vedacao por meio de calor de laminado de embalagem
AU89214/82A AU552656B2 (en) 1981-10-08 1982-10-08 Heat sealing
JP57177486A JPS58134744A (ja) 1981-10-08 1982-10-08 包装材料をヒ−トシ−ルする方法及び装置
CA000419047A CA1211356A (en) 1981-10-08 1983-01-06 Method and an arrangement for the heat-sealing of packing laminate
MYPI87000753A MY100421A (en) 1981-10-08 1987-06-02 A method and an arrangement for the heat-sealing of packing laminate.
KE374187A KE3741A (en) 1981-10-08 1987-07-17 A method and an arrangement for the heat-sealing of packing laminate
HK22188A HK22188A (en) 1981-10-08 1988-03-24 A method and an arrangement for the heat-sealing of packing laminate
JP26234392A JPH0729382B2 (ja) 1981-10-08 1992-09-30 包装積層品をヒートシールする装置
LV930960A LV5434A3 (lv) 1981-10-08 1993-06-30 Iepakojuma laminata termiskas hermetizacijas panemiens
LTRP999A LT2511B (lt) 1981-10-08 1993-09-20 Pakavimo laminato silumines hermetizacijos budas
JP17434894A JP2501777B2 (ja) 1981-10-08 1994-07-26 包装積層品をヒ―トシ―ルする装置
GEAP19942288A GEP19970668B (en) 1981-10-08 1994-11-14 Process for thermal sealing of packing laminate
JP21880596A JP3175118B2 (ja) 1981-10-08 1996-08-20 ヒートシールされた包装積層品

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8105960A SE433322B (sv) 1981-10-08 1981-10-08 Anordning for vermeforsegling av forpackningslaminat - utformning av forseglingsbacken

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SE8105960L SE8105960L (sv) 1983-04-09
SE433322B true SE433322B (sv) 1984-05-21

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CA (1) CA1200749A (sv)
DE (1) DE3274819D1 (sv)
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JPS58134744A (ja) 1983-08-11
SU1635897A3 (ru) 1991-03-15
JP3175118B2 (ja) 2001-06-11
HK22188A (en) 1988-03-31
DE3274819D1 (en) 1987-02-05
DK158502C (da) 1990-10-29
JP2501777B2 (ja) 1996-05-29
JPH05269854A (ja) 1993-10-19
NO163178C (no) 1990-04-18
DK158502B (da) 1990-05-28
MY100421A (en) 1990-09-29
ES279693Y (es) 1985-06-01
JPH0242055B2 (sv) 1990-09-20
ZA827298B (en) 1983-11-30
EP0076966A1 (en) 1983-04-20
NO163178B (no) 1990-01-08
CA1200749A (en) 1986-02-18
EP0076966B1 (en) 1986-12-30
SE8105960L (sv) 1983-04-09
JPH09240607A (ja) 1997-09-16
DK441982A (da) 1983-04-09
GEP19970668B (en) 1997-01-04
AU552656B2 (en) 1986-06-12
BR8205892A (pt) 1983-09-06
JPH07164523A (ja) 1995-06-27
JPH0729382B2 (ja) 1995-04-05
ES279693U (es) 1984-11-16
NO823345L (no) 1983-04-11
AU8921482A (en) 1983-04-14
UA5967A1 (uk) 1994-12-29

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