WO2006041380A1 - A counter jaw arrangement - Google Patents

A counter jaw arrangement Download PDF

Info

Publication number
WO2006041380A1
WO2006041380A1 PCT/SE2005/001466 SE2005001466W WO2006041380A1 WO 2006041380 A1 WO2006041380 A1 WO 2006041380A1 SE 2005001466 W SE2005001466 W SE 2005001466W WO 2006041380 A1 WO2006041380 A1 WO 2006041380A1
Authority
WO
WIPO (PCT)
Prior art keywords
counter
jaw
jaw arrangement
carrier arm
counter body
Prior art date
Application number
PCT/SE2005/001466
Other languages
French (fr)
Inventor
Morgan Svensson
Anders Hilmersson
Original Assignee
Tetra Laval Holdings & Finance S.A.
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 Tetra Laval Holdings & Finance S.A. filed Critical Tetra Laval Holdings & Finance S.A.
Publication of WO2006041380A1 publication Critical patent/WO2006041380A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • B65B51/303—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes reciprocating along only 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
    • 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
    • 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
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/745—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool
    • B29C65/7451—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool the severing tool and the welding tool being movable with respect to one-another
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/346—Making joints having variable thicknesses in the joint area, e.g. by using jaws having an adapted configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B29C66/81419—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled and flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81425—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being stepped, e.g. comprising a shoulder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—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
    • B29C66/81433—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 being toothed, i.e. comprising several teeth or pins, or being patterned
    • B29C66/81435—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 being toothed, i.e. comprising several teeth or pins, or being patterned comprising several parallel ridges, e.g. for crimping
    • 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
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    • 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
    • B29C66/8163—Self-aligning to the joining plane, e.g. mounted on a ball and socket
    • 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
    • B29C66/8167—Quick change joining tools or surfaces
    • 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
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    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
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    • B29C66/8491—Packaging machines welding through a filled container, e.g. tube or bag
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B65B51/10—Applying or generating heat or pressure or combinations thereof
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    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
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    • 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"
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    • 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
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    • 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
    • B29C66/70—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
    • B29C66/70—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
    • B29C66/72—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
    • B29C66/7234—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 barrier layer
    • 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
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2305/00—Use of metals, their alloys or their compounds, as reinforcement
    • B29K2305/02—Aluminium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2711/00—Use of natural products or their composites, not provided for in groups B29K2601/00 - B29K2709/00, for preformed parts, e.g. for inserts
    • B29K2711/12—Paper, e.g. cardboard
    • B29K2711/123—Coated
    • 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
    • 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
    • B29L2009/003—Layered products comprising a metal layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/22—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding
    • B65B51/225—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding by ultrasonic welding

Definitions

  • the present invention relates to a counter jaw arrangement for a heat- generating jaw for sealing packages in a filling machine according the preamble to appended Claim 1.
  • the packages are often manufactured from a tube of packaging material which is conveyed through a filling machine.
  • the packaging material may consist of one or more layers of material depending upon the type of product which is to be filled in the packages.
  • Certain packages are manufactured, for example, from a layer of plastic which is sealable by means of melting heat, occasionally a plurality of plastic layers, while other packages consist, for example, of a plurality of different material layers, such as a fibrous material, e.g. paper, which is coated on both sides with layers of meltable or fusible plastic, for example polyethylene, and may also include an additional material layer, for example of aluminium, which functions, as a barrier in aseptic packages. .
  • the tube is conveyed in a per se known manner through the filling machine at the same time as it is filled the product, sealed and given its final configuration.
  • the individual packages are sealed in that two jaws which are displaced towards one another grip and compress the tube in transverse zones uniformly distributed along the length of the tube.
  • the jaws consist of a counter jaw and a jaw for. generating heat, for example a so-called ultrasound horn which generates the heat by means of ultrasound.
  • the heat may also be generated in other ways, for example by means of constant heat or induction, for sealing of each respective compressed tube section by melting associated plastic material and thereafter severing each respective tube section so that individual packages are obtained.
  • the mutually compressing sealing surfaces of the counter jaw and the heat-generating jaw must be sufficiently planar parallel, i.e. be aligned or set so that their jaw surfaces afford a sufficiently evenly distributed pressure throughout the entire packaging surface which is to be sealed. This is enormously important when an ultrasound horn is employed, since the effectively in ultrasound sealing is proportional to the pressure exercised by the jaws on the wall of the tube during the sealing operation.
  • a sufficient planar parallel degree for the sealing surfaces of the mutually compressing jaws may be attained int. al. as a result of the following two prior art constructions, a first construction which supports the counter jaw by means of a ball joint which is moveable and can thereby be set in a plurality of mutually dependant movement axes, and a second construction which supports the counter jaw by means of a joint which may be set in one axis of movement.
  • the constructions are roughly set manually with the sealing surface of the counter jaw in a more or less planar parallel state with the sealing surface of the heating jaw, is fixed in that setting and the filling machine is then trial run. If the seals are not tight after the first trial run, the machine is stopped and the sealing jaws are released, adjusted and once again fixed in position manually, this procedure being repeated until the packages are sufficiently tight.
  • One object of the present invention is to realise a solution to the above- outlined problems by realising an improved and self-adjusting counter jaw arrangement for a heat-generating jaw for sealing packages in a filling machine.
  • the counter jaw arrangement according to the present invention for a heat- generating jaw for sealing packages in a filling machine comprises a counter jaw and a carrier arm for supporting the counter jaw.
  • the counter jaw is suspended at suspension devices which are rotary about their longitudinal axis for alignment with the heat-generating jaw.
  • the suspension devices are moveably connected to the carrier arm and adapted for movement in a plane which is parallel with the longitudinal axis of the counter jaw.
  • the counter jaw may thereby set/rotate itself in position in two mutually independent axes L, 1, in response to the heat-generating jaw if this is obliquely inclined, i.e.
  • the counter jaw is suspended at the carrier. arm at its ends by means of a stub shaft in rotary engagement with an associated hole.
  • the counter jaw rotates itself in position in response to the alignment of the heat- generating jaw on sealing of the package and simplifies calibration as well as mounting of the counter jaw, reduces the manual labour input associated therewith, improves the repeatability in each sealing operation, and also improves the seal proper compared with prior art counter jaws.
  • the counter jaw arrangement in another preferred embodiment is designed with the ends of the counter jaw in contact with the carrier arm by means of friction surfaces.
  • the counter jaw in this embodiment is self-setting/adjusting in that it rotates itself in position in response to any possible oblique inclination of the heat- generating jaw on sealing of the package, and then retains this setting since the friction between the contact surfaces retains the counter jaw in the last set position when the counter jaw and heat-generating jaw are moved away from one another after completed sealing.
  • the counter jaw arrangement in yet a further embodiment is disposed with the suspension devices moveably connected to the carrier arm by spring means.
  • This embodiment of the counter jaw arrangement affords the advantage that the counter jaw and its suspension devices set themselves in position after any possible oblique inclination/rotation of the heat-generating jaw around an axis substantially parallel with the longitudinal axis of the packages and simplifies calibration and mounting of the counter jaw, and also further reduces the manual labour input associated therewith. This simplifies and also improves repeatability in each sealing operation and also further improves the seal proper compared with prior art counter jaws.
  • the friction surfaces are releasable friction coatings/inlays.
  • This embodiment renders the counter jaw arrangement self-adjusting in that the counter jaw rotates itself in position in response to the heat-generating jaw on sealing of the package and then retains its last-set position when the counter jaw and the heat-generating jaw are moved away from one another after the sealing operation.
  • the counter jaw arrangement in still a further embodiment is designed so that each end of the counter jaw is in rotary engagement with at least one projecting stub shaft at each respective front portion of the suspension device facing towards the heat-generating jaw.
  • the counter jaw rotates itself in position in response to the alignment of the heat-generating jaw on sealing of the package, and simplifies calibration as well as mounting of the counter jaw and thereby reduces the manual labour input associated therewith. This also improves repeatability in the sealing operation and further improves the seal proper compared with prior art counter jaws.
  • the counter jaw may further be in mesh with at least one separate stub shaft which extends through a hole passing through the rear portion of each respective suspension device, the inner diameter of the hole being greater than the outer diameter of the stub shaft.
  • the movements of the counter jaw may hereby be restricted.
  • Fig. 1 is a side elevation in section which schematically illustrates a sealing device with a counter jaw arrangement according to the present invention and an ultrasound horn;
  • Fig. 2 is a front elevation in perspective which shows the counter jaw arrangement of Fig. 1;
  • Fig. 3 is an exploded view of the counter jaw arrangement
  • Fig. 4 is a perspective rear view of the counter jaw arrangement
  • Fig. 5 is a top plan view in section of the counter jaw arrangement
  • Fig. 6 is another front elevation in perspective of a substantially exposed counter jaw
  • Fig. 7 is another front elevation in perspective of a suspension device for the counter jaw.
  • a device for sealing, in a per se known manner, packages in a filling machine comprises a counter jaw arrangement 10 according to the present invention for employment together with a prior art heat-generating jaw 13 in the form of an ultrasound horn 13 (see Figs. 1-7).
  • Fig. 1 is a side elevation of the device with a counter jaw arrangement 10 according to the invention shown to the right and the ultrasound horn 13 to the left.
  • the counter jaw arrangement 10 may also be employed for other types of heat- generating jaws 13, for example induction heating jaws, instead of an ultrasound horn.
  • Figs. 2 to 7 show the counter jaw arrangement 10 according to the present invention with associated components.
  • the counter jaw arrangement 10 comprises the substantially oblong counter body 20 as a sealing member for engagement with the package and cooperation with a similar sealing member on the ultrasound horn 13.
  • the counter body 20 has two ends, one end 20a to the left which is moveably connected to a suspension device 11, and one end 20b to the right which is moveably connected to a second suspension device 12.
  • the suspension devices 11 and 12 are moveably connected to a carrier arm 30 and support the counter body 20 against the carrier arm and are also employed in a per se known manner as catches for engagement with corresponding prior art catches at the ultrasound horn 13 when the packages are sealed.
  • the novel counter jaw arrangement 10 is designed with the counter body 20 suspended rotatably about its longitudinal axis 1 at each end 20a, 20b by means of stub shafts 40 in rotary engagement with associated holes for alignment with the ultrasound horn 13 (the longitudinal axis 1 is shown in Fig. 3 where arrows show its direction of movement).
  • One stub shaft 40 projects out from the front portion of each respective suspension device 11, 12, facing towards the ultrasound horn 13 (this is shown clearly in Fig. 3, 5 and 7).
  • the function of the bolts 50 is to restrict the rotational movement of the counter body 20 about the longitudinal axis 1, i.e. function as end position arrest members in both rotations of direction around the axis 1.
  • the bolts 50 include a compression spring 51 in the form of a helical spring which may also be formed as a cylindrical element manufactured from elastic material, as well as two washers 52, 53.
  • Each bolt 50 is externally threaded at one end over which a first washer 52, the spring 51 and a second washer 53 which serves as a spacer and sliding washer, are passed before the bolt is then passed through the rear hole of each respective suspension device 11, 12 and screwed into the threaded bottom hole of the counter body 20 while the spring 51 is compressed until the bolt 50 bottoms out in the hole (in Fig. 6, the bolt 50, the spring 51 and the washers 52 and 53 are shown in the screwed-in position without the suspension devices 11, 12).
  • the spring force may be optimised so that the counter body 20 retains its last setting in relation to the suspension devices 11, 12 as a presetting before the next sealing operation.
  • the suspension devices 11, 12 are adapted for movement in a plane which is parallel with the longitudinal axis 1 of the counter body 20 and substantially at right angles to the longitudinal/alignment axis of the packages and the direction of transport (which in turn is parallel with the axis of rotation L in Fig. 3).
  • This moveable suspension is realised by means of two spring mechanisms comprising two separate, releasable stub shafts or bolts 70 which are each in mesh with a bottom hole in the rear portion of each respective suspension device 11, 12 and which extend at right angles to the longitudinal axis 1 of the counter body 20 through a hole passing completely through the carrier arm 30, the inner diameter of the hole being larger than the outer diameter of the bolts 70 (this is shown clearly in Figs. 3 and 5).
  • the bolts 70 in the resilient suspension devices which are shown in Fig. 5 are provided with an external thread at one end and adapted to extend, from the rear side of the carrier arm 30, through a first guide washer 71 which has a recess facing towards the carrier arm 30 for accommodating one end of a compression spring 72, here a helical spring, and a spacer washer 73 through the carrier arm further out through the front side of the carrier arm which faces towards the counter body 20 with its threaded ends and through a second guide washer 74.
  • the threaded end of each respective bolt 70 is screwed into a bottom hole in a stub shaft shown in Fig. 5 as facing towards the carrier arm 30 and projecting from each respective suspension device 11, 12.
  • the second guide washer 74 is disposed externally on the projecting stub shaft on each respective suspension device 11, 12 and is locked axially thereto by means of locking pins 75, for example spring pins.
  • the locking pins are adapted for engagement with clearance in grooves in each respective projecting stub shaft and in that the grooves in the stub shaft are slightly larger than the locking pins, it is required that a restricted relative movement be permitted between the guide washer 74 and the stub shaft.
  • Fig. 3 shows the mounting of the bolts 70 where the first guide washer 71, which has a through-going hole, is first passed over the threaded end of the bolt 70, whereafter the spring 72 is passed over the bolt and moved in partly with one end into the recess of the guide washer 71, and the spacer washer 73 is passed over the bolt 70 which is moved further through the carrier arm 30 until it projects out with its threaded end out of the carrier arm.
  • the second guide washer 74 is passed over the stub shaft projecting on the rear side of each respective suspension device 11, 12 and is locked axially by inserting the locking pins 75 in each respective hole.
  • the bolt 70 is then screwed into the threaded bottom hole of the suspension devices 11, 12, while the spring 72 is compressed until it bottoms out in the hole.
  • the spring force may be optimised so that it affords a suitable resistance against movement of the counter body 20 and the suspension devices 11, 12.
  • the through-holes of the carrier arm 30 for accommodating the bolts 70 and associated components 71, 72, 73, 74, 75 have two fundamentally identical apertures which are formed with a substantially rectangular configuration, an opening on the rear side of the carrier arm which faces away from the counter body 20 and an opening on the front side of the carrier arm.
  • the recesses display a greater width seen in the longitudinal direction 1 of the counter body 20 than their height and are formed for accommodating and guiding the washers 71 and 74 which are octagonal as shown in Fig. 3, but may also be rectangular or display any other configuration cooperating with the recesses.
  • the guiding of the movement of the suspension devices 11, 12 in a plane which is parallel with the longitudinal axis 1 of the counter body 20 and substantially at right angles to the longitudinal axis of the packages is realised in that the height of the washers 71, 74 (see Fig.
  • the width of the recesses is greater than their height while the washers 71, 74 are symmetrical, i.e. display equal width and height, a clearance being created between the washers and the sides of the apertures (shown clearly in Fig.
  • the counter jaw arrangement 10 is also provided with a rounded washer 80 (see Fig. 2, 3 and 6) which is removably connected to the upper side of the counter body 20 and adapted to be supported laterally by a recess in a heel 81 fixedly provided at the carrier arm 30.
  • This washer 80 is configurationally adapted with its radius so that it may "roll” or be rotated slightly inside the recess and accompany the counter body 20 somewhat during its movement at the same time as eliminating any possible “locking draw effects" when the counter body moves away from/towards the carrier arm 30 and at the same time pivots slightly. This guiding in the lateral direction by means of the washer 80 and the recess of the heel 81 affords an extra stability for the counter jaw arrangement 10 in the longitudinal direction 1 of the counter body 20.
  • the ends 20a, 20b of the counter body 20 are in contact with the suspension devices 11, 12 by means of friction surfaces 60 in the form of removable friction coatings/inlays (shown in Figs. 2, 3, 5-7). These friction inlays 60 also display, in the present embodiment, vibration-damping properties for damping the high-frequency vibration which the ultrasound horn imparts to the counter body 20.
  • This self-adjusting function entails that the counter body 20 "automatically” and without help realises the fine-adjustment of the counter body in response to the heating jaw on condition that the counter body has been set in position as far as possible on mounting. Naturally, deviations in material thickness are also compensated for.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Package Closures (AREA)
  • Specific Conveyance Elements (AREA)

Abstract

In a filling machine for sealing packages, use is made of a counter jaw arrangement (10) for a heat-generating jaw (13). The counter jaw arrangement (10) includes a counter body (20) and a carrier arm (30) for supporting the counter body (20). The counter body (20) is suspended at suspension devices (11, 12) rotatably about its longitudinal axis (l) for alignment with the heat-generating jaw (13). In their turn, the suspension devices (11, 12) are moveably connected to the carrier arm (30) and adapted for movement in a plane which is parallel with the longitudinal axis (l) of the counter body.

Description

A COUNTER JAW ARRANGEMENT
TECHNICAL FIELD
The present invention relates to a counter jaw arrangement for a heat- generating jaw for sealing packages in a filling machine according the preamble to appended Claim 1.
BACKGROUND OF THE INVENTION
There are numerous different types of prior art apparatuses and arrangements for sealing packages once they have been filled with food and/or beverage products in filling machines. The packages are often manufactured from a tube of packaging material which is conveyed through a filling machine. The packaging material may consist of one or more layers of material depending upon the type of product which is to be filled in the packages. Certain packages are manufactured, for example, from a layer of plastic which is sealable by means of melting heat, occasionally a plurality of plastic layers, while other packages consist, for example, of a plurality of different material layers, such as a fibrous material, e.g. paper, which is coated on both sides with layers of meltable or fusible plastic, for example polyethylene, and may also include an additional material layer, for example of aluminium, which functions, as a barrier in aseptic packages. .
The tube is conveyed in a per se known manner through the filling machine at the same time as it is filled the product, sealed and given its final configuration. The individual packages are sealed in that two jaws which are displaced towards one another grip and compress the tube in transverse zones uniformly distributed along the length of the tube. The jaws consist of a counter jaw and a jaw for. generating heat, for example a so-called ultrasound horn which generates the heat by means of ultrasound. The heat may also be generated in other ways, for example by means of constant heat or induction, for sealing of each respective compressed tube section by melting associated plastic material and thereafter severing each respective tube section so that individual packages are obtained.
In order to realise a tight seal of the packages, the mutually compressing sealing surfaces of the counter jaw and the heat-generating jaw must be sufficiently planar parallel, i.e. be aligned or set so that their jaw surfaces afford a sufficiently evenly distributed pressure throughout the entire packaging surface which is to be sealed. This is enormously important when an ultrasound horn is employed, since the effectively in ultrasound sealing is proportional to the pressure exercised by the jaws on the wall of the tube during the sealing operation.
A sufficient planar parallel degree for the sealing surfaces of the mutually compressing jaws may be attained int. al. as a result of the following two prior art constructions, a first construction which supports the counter jaw by means of a ball joint which is moveable and can thereby be set in a plurality of mutually dependant movement axes, and a second construction which supports the counter jaw by means of a joint which may be set in one axis of movement. Initially, the constructions are roughly set manually with the sealing surface of the counter jaw in a more or less planar parallel state with the sealing surface of the heating jaw, is fixed in that setting and the filling machine is then trial run. If the seals are not tight after the first trial run, the machine is stopped and the sealing jaws are released, adjusted and once again fixed in position manually, this procedure being repeated until the packages are sufficiently tight.
The problems inherent in these prior art counter jaw suspension devices are that a major manual labour input is required on adjustment and calibration of the mutually compressing sealing jaws and that, if the planar parallel state is changed during production operation of the filling machine, the machine must be stopped, with consequential elevated costs and possibly a high level of rejection of packages.
In particular in work involving thin packaging material, a minor absolute error in the setting of the jaws will result in a relatively large defect. Correspondingly, a varying thickness in the packaging material will have a greater impact and effect on thin packaging materials compared with a relatively thicker material.
Further, above all the counter jaw which is suspended on the ball joint is difficult to set, since setting in one axis of movement may entail that the counter jaw is wrongly positioned in another axis of movement.
On employment of the prior art counter jaw suspension devices for sealing of packaging material which only displays layers of plastic material, i.e. thinner packaging material, the requirements placed on the accurate setting of the sealing jaws are much higher than is the case for material including fibrous layers, i.e. thicker packaging materials. The reasons for this are, on the one hand, that packaging materials including fibres are often thicker, which implies that a nominally slight error in relation to the material thickness will be of lesser importance and, on the other hand, that the fibre layers may be compressed by up to approx. 2/3 of their thickness before the fibre layer becomes totally rigid, which allows for nominally minor errors.
SUMMARY OF THE INVENTION
One object of the present invention is to realise a solution to the above- outlined problems by realising an improved and self-adjusting counter jaw arrangement for a heat-generating jaw for sealing packages in a filling machine.
This object is attained in the present invention by means of a counter jaw arrangement of the type disclosed by way of introduction which has been given the characterising features as set forth is appended Claim 1, with preferred embodiments as described in subsequent Claims 2 to 7.
The counter jaw arrangement according to the present invention for a heat- generating jaw for sealing packages in a filling machine comprises a counter jaw and a carrier arm for supporting the counter jaw. The counter jaw is suspended at suspension devices which are rotary about their longitudinal axis for alignment with the heat-generating jaw. In their turn, the suspension devices are moveably connected to the carrier arm and adapted for movement in a plane which is parallel with the longitudinal axis of the counter jaw. The counter jaw may thereby set/rotate itself in position in two mutually independent axes L, 1, in response to the heat-generating jaw if this is obliquely inclined, i.e. has moved about an axis which is parallel with the longitudinal axis of the counter jaw 1 and/or an axis L which is at right angles to the longitudinal axis of the counter jaw but parallel with the longitudinal/directional axis of the packages, so that sealing surfaces on the counter jaw and the heat- generating jaw will thereby be planar parallel with one another and the package on sealing thereof. This simplifies calibration as well as mounting of the counter jaw and reduces the manual labour input associated therewith. The continuous adjustment or automated adjustment of the counter jaw also corrects for any possible thickness variations in the packaging material, and also improves repeatability in each sealing operation and also improves the seal proper compared with prior art counter jaws.
In one alternative embodiment, the counter jaw is suspended at the carrier. arm at its ends by means of a stub shaft in rotary engagement with an associated hole. In this embodiment, the counter jaw rotates itself in position in response to the alignment of the heat- generating jaw on sealing of the package and simplifies calibration as well as mounting of the counter jaw, reduces the manual labour input associated therewith, improves the repeatability in each sealing operation, and also improves the seal proper compared with prior art counter jaws.
The counter jaw arrangement in another preferred embodiment is designed with the ends of the counter jaw in contact with the carrier arm by means of friction surfaces. The counter jaw in this embodiment is self-setting/adjusting in that it rotates itself in position in response to any possible oblique inclination of the heat- generating jaw on sealing of the package, and then retains this setting since the friction between the contact surfaces retains the counter jaw in the last set position when the counter jaw and heat-generating jaw are moved away from one another after completed sealing. Thereby, calibration and mounting of the counter jaw are simplified, and the manual labour input associated therewith is reduced and simplified, and also repeatability in each seal is improved and the seal proper is also improved compared with prior art counter jaws.
The counter jaw arrangement in yet a further embodiment is disposed with the suspension devices moveably connected to the carrier arm by spring means. This embodiment of the counter jaw arrangement affords the advantage that the counter jaw and its suspension devices set themselves in position after any possible oblique inclination/rotation of the heat-generating jaw around an axis substantially parallel with the longitudinal axis of the packages and simplifies calibration and mounting of the counter jaw, and also further reduces the manual labour input associated therewith. This simplifies and also improves repeatability in each sealing operation and also further improves the seal proper compared with prior art counter jaws.
In still a further embodiment of the counter jaw arrangement, the friction surfaces are releasable friction coatings/inlays. This embodiment renders the counter jaw arrangement self-adjusting in that the counter jaw rotates itself in position in response to the heat-generating jaw on sealing of the package and then retains its last-set position when the counter jaw and the heat-generating jaw are moved away from one another after the sealing operation. Thereby, calibration and mounting of the counter jaw are simplified, the manual labour input associated therewith is reduced, repeatability in each sealing operation is simplified and improved and the seal proper is further improved compared with prior art counter jaws.
The counter jaw arrangement in still a further embodiment is designed so that each end of the counter jaw is in rotary engagement with at least one projecting stub shaft at each respective front portion of the suspension device facing towards the heat-generating jaw. In this embodiment, the counter jaw rotates itself in position in response to the alignment of the heat-generating jaw on sealing of the package, and simplifies calibration as well as mounting of the counter jaw and thereby reduces the manual labour input associated therewith. This also improves repeatability in the sealing operation and further improves the seal proper compared with prior art counter jaws.
The counter jaw may further be in mesh with at least one separate stub shaft which extends through a hole passing through the rear portion of each respective suspension device, the inner diameter of the hole being greater than the outer diameter of the stub shaft. The movements of the counter jaw may hereby be restricted.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
The present invention will now be described in greater detail hereinbelow, with reference to the accompanying Drawings. In the accompanying Drawings:
Fig. 1 is a side elevation in section which schematically illustrates a sealing device with a counter jaw arrangement according to the present invention and an ultrasound horn;
Fig. 2 is a front elevation in perspective which shows the counter jaw arrangement of Fig. 1;
Fig. 3 is an exploded view of the counter jaw arrangement; Fig. 4 is a perspective rear view of the counter jaw arrangement; Fig. 5 is a top plan view in section of the counter jaw arrangement; Fig. 6 is another front elevation in perspective of a substantially exposed counter jaw; and
Fig. 7 is another front elevation in perspective of a suspension device for the counter jaw.
DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT
A device for sealing, in a per se known manner, packages in a filling machine comprises a counter jaw arrangement 10 according to the present invention for employment together with a prior art heat-generating jaw 13 in the form of an ultrasound horn 13 (see Figs. 1-7).
Fig. 1 is a side elevation of the device with a counter jaw arrangement 10 according to the invention shown to the right and the ultrasound horn 13 to the left. The counter jaw arrangement 10 may also be employed for other types of heat- generating jaws 13, for example induction heating jaws, instead of an ultrasound horn.
Figs. 2 to 7 show the counter jaw arrangement 10 according to the present invention with associated components. The counter jaw arrangement 10 comprises the substantially oblong counter body 20 as a sealing member for engagement with the package and cooperation with a similar sealing member on the ultrasound horn 13. The counter body 20 has two ends, one end 20a to the left which is moveably connected to a suspension device 11, and one end 20b to the right which is moveably connected to a second suspension device 12. The suspension devices 11 and 12 are moveably connected to a carrier arm 30 and support the counter body 20 against the carrier arm and are also employed in a per se known manner as catches for engagement with corresponding prior art catches at the ultrasound horn 13 when the packages are sealed.
The novel counter jaw arrangement 10 according to the present invention is designed with the counter body 20 suspended rotatably about its longitudinal axis 1 at each end 20a, 20b by means of stub shafts 40 in rotary engagement with associated holes for alignment with the ultrasound horn 13 (the longitudinal axis 1 is shown in Fig. 3 where arrows show its direction of movement). One stub shaft 40 projects out from the front portion of each respective suspension device 11, 12, facing towards the ultrasound horn 13 (this is shown clearly in Fig. 3, 5 and 7). Two separate, releasable stub shafts or bolts 50 of which each one is in mesh with a bottom hole in each counter body end 20a, 20b, extend substantially parallel with the longitudinal axis 1 of the counter jaw through a hole passing completely through the rear portion of each respective suspension device 11, 12, the inner diameter of the hole being larger than the outer diameter of the bolt 50 (this is shown clearly in Fig. 3, 5 and 6).
The function of the bolts 50 (see Fig. 3, 5 and 6) is to restrict the rotational movement of the counter body 20 about the longitudinal axis 1, i.e. function as end position arrest members in both rotations of direction around the axis 1. The bolts 50 include a compression spring 51 in the form of a helical spring which may also be formed as a cylindrical element manufactured from elastic material, as well as two washers 52, 53. Each bolt 50 is externally threaded at one end over which a first washer 52, the spring 51 and a second washer 53 which serves as a spacer and sliding washer, are passed before the bolt is then passed through the rear hole of each respective suspension device 11, 12 and screwed into the threaded bottom hole of the counter body 20 while the spring 51 is compressed until the bolt 50 bottoms out in the hole (in Fig. 6, the bolt 50, the spring 51 and the washers 52 and 53 are shown in the screwed-in position without the suspension devices 11, 12). By dimensioning the thickness of the washers 52, 53, and the length of the spring 51 and the bolt 50, the spring force may be optimised so that the counter body 20 retains its last setting in relation to the suspension devices 11, 12 as a presetting before the next sealing operation. In the novel counter jaw arrangement 10, the suspension devices 11, 12 are adapted for movement in a plane which is parallel with the longitudinal axis 1 of the counter body 20 and substantially at right angles to the longitudinal/alignment axis of the packages and the direction of transport (which in turn is parallel with the axis of rotation L in Fig. 3). This moveable suspension is realised by means of two spring mechanisms comprising two separate, releasable stub shafts or bolts 70 which are each in mesh with a bottom hole in the rear portion of each respective suspension device 11, 12 and which extend at right angles to the longitudinal axis 1 of the counter body 20 through a hole passing completely through the carrier arm 30, the inner diameter of the hole being larger than the outer diameter of the bolts 70 (this is shown clearly in Figs. 3 and 5).
The bolts 70 in the resilient suspension devices which are shown in Fig. 5 are provided with an external thread at one end and adapted to extend, from the rear side of the carrier arm 30, through a first guide washer 71 which has a recess facing towards the carrier arm 30 for accommodating one end of a compression spring 72, here a helical spring, and a spacer washer 73 through the carrier arm further out through the front side of the carrier arm which faces towards the counter body 20 with its threaded ends and through a second guide washer 74. The threaded end of each respective bolt 70 is screwed into a bottom hole in a stub shaft shown in Fig. 5 as facing towards the carrier arm 30 and projecting from each respective suspension device 11, 12. The second guide washer 74 is disposed externally on the projecting stub shaft on each respective suspension device 11, 12 and is locked axially thereto by means of locking pins 75, for example spring pins. The locking pins are adapted for engagement with clearance in grooves in each respective projecting stub shaft and in that the grooves in the stub shaft are slightly larger than the locking pins, it is required that a restricted relative movement be permitted between the guide washer 74 and the stub shaft.
Fig. 3 shows the mounting of the bolts 70 where the first guide washer 71, which has a through-going hole, is first passed over the threaded end of the bolt 70, whereafter the spring 72 is passed over the bolt and moved in partly with one end into the recess of the guide washer 71, and the spacer washer 73 is passed over the bolt 70 which is moved further through the carrier arm 30 until it projects out with its threaded end out of the carrier arm. The second guide washer 74 is passed over the stub shaft projecting on the rear side of each respective suspension device 11, 12 and is locked axially by inserting the locking pins 75 in each respective hole. The bolt 70 is then screwed into the threaded bottom hole of the suspension devices 11, 12, while the spring 72 is compressed until it bottoms out in the hole. By dimensioning the thickness of the washer 73, the length of the spring 72 and the bolt 70 as well as the depth of the recess in the first spacer washer 71, the spring force may be optimised so that it affords a suitable resistance against movement of the counter body 20 and the suspension devices 11, 12. The through-holes of the carrier arm 30 for accommodating the bolts 70 and associated components 71, 72, 73, 74, 75 have two fundamentally identical apertures which are formed with a substantially rectangular configuration, an opening on the rear side of the carrier arm which faces away from the counter body 20 and an opening on the front side of the carrier arm. The recesses display a greater width seen in the longitudinal direction 1 of the counter body 20 than their height and are formed for accommodating and guiding the washers 71 and 74 which are octagonal as shown in Fig. 3, but may also be rectangular or display any other configuration cooperating with the recesses. The guiding of the movement of the suspension devices 11, 12 in a plane which is parallel with the longitudinal axis 1 of the counter body 20 and substantially at right angles to the longitudinal axis of the packages is realised in that the height of the washers 71, 74 (see Fig. 3) is adapted in tolerance to the inner height of the rectangular apertures of the carrier arm that the washers abut against the "roof and "floor" of the apertures and in principle permit no vertical movement for the washers and the suspension devices 11, 12 as well as the counter body 20. As disclosed previously, the width of the recesses is greater than their height while the washers 71, 74 are symmetrical, i.e. display equal width and height, a clearance being created between the washers and the sides of the apertures (shown clearly in Fig. 5) and entailing that a movement in a plane which is parallel with the longitudinal axis 1 of the counter body 20 and substantially at right angles to the longitudinal axis of the packages is permitted if the counter body 20 for example moves further outwards with its left-hand end 20a compared with its right-hand end 20b.
The counter jaw arrangement 10 according to the present invention is also provided with a rounded washer 80 (see Fig. 2, 3 and 6) which is removably connected to the upper side of the counter body 20 and adapted to be supported laterally by a recess in a heel 81 fixedly provided at the carrier arm 30. This washer 80 is configurationally adapted with its radius so that it may "roll" or be rotated slightly inside the recess and accompany the counter body 20 somewhat during its movement at the same time as eliminating any possible "locking draw effects" when the counter body moves away from/towards the carrier arm 30 and at the same time pivots slightly. This guiding in the lateral direction by means of the washer 80 and the recess of the heel 81 affords an extra stability for the counter jaw arrangement 10 in the longitudinal direction 1 of the counter body 20.
The ends 20a, 20b of the counter body 20 are in contact with the suspension devices 11, 12 by means of friction surfaces 60 in the form of removable friction coatings/inlays (shown in Figs. 2, 3, 5-7). These friction inlays 60 also display, in the present embodiment, vibration-damping properties for damping the high-frequency vibration which the ultrasound horn imparts to the counter body 20.
By disposing these friction inlays 60 between the counter body 20 and the suspension devices 11, 12, there will be afforded, in cooperation with the spring forces, a self-adjusting function for the counter jaw arrangement 10 in that the counter body 20 may rotate/adjust itself with its sealing surface by rotation about its longitudinal axis 1 after the directioning or alternatively orientation of the corresponding sealing surface on the ultrasound horn 13 on sealing of the packages and will thereafter be retained or maintained in this position since the friction between the counter body 20, the friction surfaces 60 and the suspension devices 11, 12 adjustably "locks" in the latest position. This "locking together" will be overcome by oblique loadings. This self-adjusting function entails that the counter body 20 "automatically" and without help realises the fine-adjustment of the counter body in response to the heating jaw on condition that the counter body has been set in position as far as possible on mounting. Naturally, deviations in material thickness are also compensated for.
This reduces the amount of manual labour for calibration and readjustment of the orientation of the counter body, improves the sealing of the package and also the repeatability of the sealing procedure.

Claims

WHAT IS CLAIMED IS:
1. A counter jaw arrangement (10) for a heat-generating jaw (13) for sealing packages in a filling machine, comprising a counter body (20) and a carrier arm (30) for supporting the counter body (20), characterised in that the counter body (20) is suspended at suspension devices (11, 12) rotatably about its longitudinal axis (1) for alignment with the heat-generating jaw (13), the suspension devices (11, 12) being in their turn moveably connected to the carrier arm (30) and adapted for movement in a plane which is parallel with the longitudinal axis (1) of the counter body.
2. The counter jaw arrangement as claimed in Claim 1, wherein the counter body (20) is suspended at the carrier arm (30) by the intermediary of its ends (20a,
20b) by means of a stub shaft (40) in rotary engagement with its associated hole.
3. The counter jaw arrangement as claimed in Claim 2, wherein the ends (20a, 20b) of the counter body (20) are in contact with the carrier arm (30) via friction surfaces (60).
4. The counter jaw arrangement as claimed in Claim 1, 2 or 3, wherein the suspension devices (11, 12) are connected to the carrier arm (30) by spring means (70, 71, 72, 73).
5. The counter jaw arrangement as claimed in Claim 3, wherein the friction surfaces (60) are releasable friction coatings.
6. The counter jaw arrangement as claimed in Claim 2, wherein each end (20a, 20b) of the counter body (20) is in rotary engagement with a projecting stub shaft (40) at the forward portion of each respective suspension device (11, 12) facing towards the heat-generating jaw (13).
7. The counter jaw arrangement as claimed in Claim 2, wherein the counter body (20) is in mesh with at least one separate stub shaft (50) which extends through a hole passing through the rear portion of each respective suspension device (11, 12) and whose inner diameter is larger than the outer diameter of the stub shaft.
8. The counter jaw arrangement as claimed in Claim 3 or 5, wherein the friction surfaces (60) or surfaces cooperating therewith display vibration-damping properties.
PCT/SE2005/001466 2004-10-15 2005-10-05 A counter jaw arrangement WO2006041380A1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1854618A1 (en) * 2006-05-11 2007-11-14 INDAG Gesellschaft für Industriebedarf mbH & Co. Betriebs KG Anvil for ultrasonic welding as well as device for ultrasonic welding
WO2009068227A1 (en) * 2007-11-26 2009-06-04 Minitüb Abfüll- und Labortechnik GmbH & Co. KG Device for closing plastic containers
EP2113370A1 (en) 2008-04-29 2009-11-04 Tetra Laval Holdings & Finance SA Sealing jaw for producing sealed packages of a food product
WO2017074383A1 (en) 2015-10-29 2017-05-04 Kimberly-Clark Worldwide, Inc. Ultrasonic anvil having low transmissibility
EP3383619B1 (en) * 2015-11-30 2024-03-20 Sonics & Materials Inc. Sealing system and method for gusseted and zippered bags

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3868291A (en) * 1973-02-16 1975-02-25 Gottlieb Benz Welding tool for forming synthetic-resin packages
GB1426626A (en) * 1972-04-19 1976-03-03 Fathom Srl Devices for welding and severing thermoplastic material
US4081942A (en) * 1976-08-02 1978-04-04 Rexham Corporation Machine and method for filling, introducing steam into, and sealing flexible pouches
US4306400A (en) * 1980-02-07 1981-12-22 Rexham Corporation Packaging machine with continuous motion top sealer
US4637199A (en) * 1985-01-30 1987-01-20 International Paper Company Induction sealing of paperboard
US20030131946A1 (en) * 2001-05-01 2003-07-17 Melheim Scott B. Floating heated packaging shoe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1426626A (en) * 1972-04-19 1976-03-03 Fathom Srl Devices for welding and severing thermoplastic material
US3868291A (en) * 1973-02-16 1975-02-25 Gottlieb Benz Welding tool for forming synthetic-resin packages
US4081942A (en) * 1976-08-02 1978-04-04 Rexham Corporation Machine and method for filling, introducing steam into, and sealing flexible pouches
US4306400A (en) * 1980-02-07 1981-12-22 Rexham Corporation Packaging machine with continuous motion top sealer
US4637199A (en) * 1985-01-30 1987-01-20 International Paper Company Induction sealing of paperboard
US20030131946A1 (en) * 2001-05-01 2003-07-17 Melheim Scott B. Floating heated packaging shoe

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7810541B2 (en) 2006-05-11 2010-10-12 Indag Gesellschaft fur Industriebedarf mhB & Co. Betriebs KG Anvil for ultrasonic welding and device for ultrasonic welding
EP1854618A1 (en) * 2006-05-11 2007-11-14 INDAG Gesellschaft für Industriebedarf mbH & Co. Betriebs KG Anvil for ultrasonic welding as well as device for ultrasonic welding
WO2009068227A1 (en) * 2007-11-26 2009-06-04 Minitüb Abfüll- und Labortechnik GmbH & Co. KG Device for closing plastic containers
US7950208B2 (en) 2008-04-29 2011-05-31 Tetra Laval Holdings & Finance S.A. Sealing jaw for producing sealed packages of a food product
WO2009133077A1 (en) * 2008-04-29 2009-11-05 Tetra Laval Holdings & Finance S.A. Sealing jaw for producing sealed packages of a food product
CN102015255A (en) * 2008-04-29 2011-04-13 利乐拉瓦尔集团及财务有限公司 Sealing jaw for producing sealed packages of a food product
EP2113370A1 (en) 2008-04-29 2009-11-04 Tetra Laval Holdings & Finance SA Sealing jaw for producing sealed packages of a food product
RU2490128C2 (en) * 2008-04-29 2013-08-20 Тетра Лаваль Холдингз Энд Файнэнс С.А. Sealing clamp for making sealed food product packs
CN105398047A (en) * 2008-04-29 2016-03-16 利乐拉瓦尔集团及财务有限公司 Sealing jaw for producing sealed packages of a food product
WO2017074383A1 (en) 2015-10-29 2017-05-04 Kimberly-Clark Worldwide, Inc. Ultrasonic anvil having low transmissibility
EP3368294A4 (en) * 2015-10-29 2019-06-19 Kimberly-Clark Worldwide, Inc. Ultrasonic anvil having low transmissibility
US10695860B2 (en) 2015-10-29 2020-06-30 Kimberly-Clark Worldwide, Inc. Ultrasonic anvil having low transmissibility
EP3383619B1 (en) * 2015-11-30 2024-03-20 Sonics & Materials Inc. Sealing system and method for gusseted and zippered bags

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SE0402518L (en) 2006-04-16
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