WO2008102250A1 - Sonotrode for ultrasound welding and cutting packaging units - Google Patents

Sonotrode for ultrasound welding and cutting packaging units Download PDF

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Publication number
WO2008102250A1
WO2008102250A1 PCT/IB2008/000398 IB2008000398W WO2008102250A1 WO 2008102250 A1 WO2008102250 A1 WO 2008102250A1 IB 2008000398 W IB2008000398 W IB 2008000398W WO 2008102250 A1 WO2008102250 A1 WO 2008102250A1
Authority
WO
WIPO (PCT)
Prior art keywords
sonotrode
sealing surface
cavity
reinforcing member
active sealing
Prior art date
Application number
PCT/IB2008/000398
Other languages
French (fr)
Inventor
Roberto Ghiotti
Fulvio Boldrini
Original Assignee
Azionaria Costruzioni Macchine Automatiche A.C.M.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 Azionaria Costruzioni Macchine Automatiche A.C.M.A filed Critical Azionaria Costruzioni Macchine Automatiche A.C.M.A
Publication of WO2008102250A1 publication Critical patent/WO2008102250A1/en

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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
    • B29C66/01—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
    • 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
    • B29C65/083—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil
    • B29C65/087—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil using both a rotary sonotrode and a rotary anvil
    • 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
    • B29C65/743—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 the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B29C65/7435—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 the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc the tool being a roller
    • 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
    • B29C65/743—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 the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B29C65/7443—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 the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc by means of 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
    • 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
    • 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
    • B29C66/81264—Mechanical properties, e.g. hardness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81422—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being convex
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—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
    • B29C66/814—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83511—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums
    • B29C66/83513—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums cooperating jaws mounted on rollers, cylinders or drums and moving in a closed path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—Packaging machines
    • 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
    • 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
    • B65B51/306—Counter-rotating devices
    • 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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
    • B65B61/06—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting
    • B65B61/08—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting using rotary cutters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/06—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it
    • B65B9/067—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it the web advancing continuously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8122—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
    • B29C66/816—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
    • 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
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/12—Thermoplastic materials
    • 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
    • B29K2905/00—Use of metals, their alloys or their compounds, as mould material
    • B29K2905/02—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
    • B29K2905/00—Use of metals, their alloys or their compounds, as mould material
    • B29K2905/08—Transition metals
    • B29K2905/12—Iron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/007—Hardness
    • 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
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages

Definitions

  • the present invention relates to a sonotrode for ultrasound sealing and cutting units.
  • the present invention may be used to advantage in units for ultrasound sealing and cutting continuous tubular strips on FFS (Form, Fill and Seal) machines, as described, for example, in US-6, 574 , 944 , and to which the following description refers purely by way of example .
  • FFS Form, Fill and Seal
  • a continuous tubular strip of thermoplastic material housing an orderly succession of products, is fed along a feed path through an ultrasound sealing and cutting unit, which seals the tubular strip along a succession of transverse seal lines, each extending along a respective portion of the tubular strip between two adjacent products, and cuts the strip along each seal line to obtain a succession of wrapped products .
  • the above known ultrasound sealing and cutting unit normally comprises a first and second rotor, which are located on opposite sides of the feed path, have respective pitch surfaces tangent to each other and to the feed path along a line of tangency, and rotate in opposite directions about a first and second axis, respectively, which are parallel to each other and to the line of tangency, and define a plane through the line of tangency and perpendicular to the feed path.
  • the first rotor has at least one sealing device comprising a sonotrode, an active sealing surface of which is movable along the respective pitch surface; and the second rotor has at least one anvil, a contrast surface of which, located at the free end of the anvil, is movable along the relative pitch surface and reaches the line of tangency in time with the active sealing surface.
  • the contrast surface of the anvil has a central slit engaged by a blade, a cutting edge of which, made of hard metal, normally Vidiam, cooperates with the active sealing surface of the sonotrode to engage and cut the continuous tubular strip at the line of tangency.
  • a sonotrode is normally made of aluminium or titanium, or even steel, but definitely not Vidiam on account of its flexural rigidity, and since, in the case of the sealing and cutting unit described above, the active sealing surface of the sonotrode also acts as a contrast surface for the blade, the difference in the surface hardness of the sonotrode and the cutting edge of the blade results in relatively fast wear and, hence, frequent replacement of the sonotrode .
  • Number 1 in the attached drawing indicates as a whole an FFS (Form, Fill and Seal) machine, in which a continuous tubular strip 2, housing an orderly succession of products 3, is fed, in known manner not shown, along a feed path P through a sealing station 4, where machine 1 comprises a unit 5, defined by an ultrasound sealing and cutting unit, which seals tubular strip 2 along sealing areas 6 crosswise to the axis of tubular strip 2 and located at respective portions of tubular strip 2 between respective pairs of adjacent products 3, and cuts tubular strip 2 along sealing areas 6 to obtain a succession of sealed wrappings 7 containing respective products 3.
  • FFS Form, Fill and Seal
  • Unit 5 comprises two rotors 8, which are located on opposite sides of feed path P, rotate in opposite directions about respective parallel axes 9 defining a plane perpendicular to feed path P at sealing station 4, and have respective cylindrical pitch surfaces 10 substantially tangent to each other and to feed path P at sealing station 4.
  • Rotors 8 are substantially identical, and each comprise a drive shaft 11 coaxial with relative axis 9 and fitted on its free end with a sleeve 12, from a lateral surface 13 of which a sonotrode 14 of a sealing device 15 and an anvil 16 project radially outwards in diametrically opposite positions.
  • Each sonotrode 14 is normally made of aluminium, titanium or steel, and has, at its free end, an active sealing surface 17, which extends along relative pitch surface 10, is a cylindrical surface, and in plan view is substantially rectangular and substantially the same size as a sealing area 6.
  • Each anvil 16 is bounded at its free end by a contrast surface 18, which is substantially the same size as a sealing area 6 and has ribs 19 parallel to axes 9 and tangent to relative pitch surface 10.
  • a radial longitudinal groove 20, parallel to axes 9, is formed through contrast surface 18 of each anvil 16, and houses a blade 21, a cutting edge 22 of which is tangent to relative pitch surface 10 and made of a metal, normally Vidiam or titanium, of greater surface hardness than the relative sonotrode 14 at relative active sealing surface 17.
  • the rotors are offset 180°, and rotate in opposite directions and at the same angular speed about respective axes 9, so that the active sealing surface 17 of sonotrode 14 of one of rotors 8 reaches sealing station 4 together with the contrast surface 18 of anvil
  • Each sonotrode 14 has a central cavity 23, which extends, parallel to axes 9, through sonotrode 14, is substantially tangent to relative active sealing surface 17, and communicates with the outside through a slit 24 formed along active sealing surface 17, at the contact area between relative active sealing surface 17 and cutting edge 22 of relative blade 21.
  • Each sonotrode 14 also comprises a reinforcing member 25, which is coaxial with relative cavity 23, is fitted inside cavity 23 to close relative slit 24, and is of a surface hardness greater than that of relative sonotrode 14 at relative active sealing surface 17, and substantially equal to that of cutting edge 22 of relative blade 21.
  • reinforcing member 25 is also made of Vidiam, and a central portion of active sealing surface
  • each sonotrode 14 is defined by a strip 26 of the lateral surface 27 of relative reinforcing member 25.
  • Strip 26 is located on relative active sealing surface 17 to cooperate, at sealing station 4, with cutting edge 22 of blade 21 fitted to anvil 16 of the other rotor 8.
  • cavity 23 encloses reinforcing member 25 to prevent it from slipping out of cavity 23 through slit 24, which is therefore narrower than reinforcing member 25.
  • Cavity 23 and reinforcing member 25 may be of any cross sectional shape.
  • cavity 23 is defined by a circular-section through hole formed through sonotrode 14, substantially tangent to active sealing surface 17, and having an axis 28 parallel to axes 9 and at a distance from active sealing surface 17 approximately equal to but no greater than the radius of the hole;
  • reinforcing member 25 is defined by a metal, normally Vidiam or titanium, rod fitted inside the hole; and slit 24 is narrower than the diameter of the hole.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Package Closures (AREA)

Abstract

A sonotrode (14) having, at one end, an active sealing surface (17) that cooperates with the hard-metal cutting edge (22) of a blade (21), and having a cavity (23) substantially tangent to the active sealing surface (17) and communicating with the outside through a slit (24) formed along the active sealing surface (17) at a contact area between the active sealing surface (17) and the cutting edge (22); the sonotrode (14) having a reinforcing member (25), which is coaxial with the cavity (23), is wider than the slit (24), is fitted inside the cavity (23) to close the slit (24), and has a surface hardness greater than that of the sonotrode (14) at the active sealing surface (17) and substantially equal to that of the cutting edge (22) of the blade (21).

Description

SONOTRODE FOR ULTRASOUND SEALING AND CUTTING UNITS
TECHNICAL FIELD The present invention relates to a sonotrode for ultrasound sealing and cutting units. BACKGROUND ART
The present invention may be used to advantage in units for ultrasound sealing and cutting continuous tubular strips on FFS (Form, Fill and Seal) machines, as described, for example, in US-6, 574 , 944 , and to which the following description refers purely by way of example .
On FFS machines, a continuous tubular strip of thermoplastic material, housing an orderly succession of products, is fed along a feed path through an ultrasound sealing and cutting unit, which seals the tubular strip along a succession of transverse seal lines, each extending along a respective portion of the tubular strip between two adjacent products, and cuts the strip along each seal line to obtain a succession of wrapped products .
The above known ultrasound sealing and cutting unit normally comprises a first and second rotor, which are located on opposite sides of the feed path, have respective pitch surfaces tangent to each other and to the feed path along a line of tangency, and rotate in opposite directions about a first and second axis, respectively, which are parallel to each other and to the line of tangency, and define a plane through the line of tangency and perpendicular to the feed path.
The first rotor has at least one sealing device comprising a sonotrode, an active sealing surface of which is movable along the respective pitch surface; and the second rotor has at least one anvil, a contrast surface of which, located at the free end of the anvil, is movable along the relative pitch surface and reaches the line of tangency in time with the active sealing surface. The contrast surface of the anvil has a central slit engaged by a blade, a cutting edge of which, made of hard metal, normally Vidiam, cooperates with the active sealing surface of the sonotrode to engage and cut the continuous tubular strip at the line of tangency.
Since a sonotrode is normally made of aluminium or titanium, or even steel, but definitely not Vidiam on account of its flexural rigidity, and since, in the case of the sealing and cutting unit described above, the active sealing surface of the sonotrode also acts as a contrast surface for the blade, the difference in the surface hardness of the sonotrode and the cutting edge of the blade results in relatively fast wear and, hence, frequent replacement of the sonotrode . DISCLOSURE OF INVENTION
It is an object of the present invention to provide a sonotrode with an active sealing surface designed to withstand impact by the cutting edge of the blade for a relatively prolonged period.
According to the present invention, there is provided a sonotrode as claimed -in the accompanying independent Claim and, preferably, in any one of the
Claims depending directly or indirectly on the independent Claim.
BRIEF DESCRIPTION OF THE DRAWING
The present invention will be described with reference to the accompanying drawing, which shows a side view, with parts in section and parts removed for clarity, of a non-limiting embodiment of an ultrasound sealing and cutting unit featuring a preferred embodiment of the sonotrode according to the present invention.
BEST MODE FOR CARRYING OUT THE INVENTION
Number 1 in the attached drawing indicates as a whole an FFS (Form, Fill and Seal) machine, in which a continuous tubular strip 2, housing an orderly succession of products 3, is fed, in known manner not shown, along a feed path P through a sealing station 4, where machine 1 comprises a unit 5, defined by an ultrasound sealing and cutting unit, which seals tubular strip 2 along sealing areas 6 crosswise to the axis of tubular strip 2 and located at respective portions of tubular strip 2 between respective pairs of adjacent products 3, and cuts tubular strip 2 along sealing areas 6 to obtain a succession of sealed wrappings 7 containing respective products 3.
Unit 5 comprises two rotors 8, which are located on opposite sides of feed path P, rotate in opposite directions about respective parallel axes 9 defining a plane perpendicular to feed path P at sealing station 4, and have respective cylindrical pitch surfaces 10 substantially tangent to each other and to feed path P at sealing station 4.
Rotors 8 are substantially identical, and each comprise a drive shaft 11 coaxial with relative axis 9 and fitted on its free end with a sleeve 12, from a lateral surface 13 of which a sonotrode 14 of a sealing device 15 and an anvil 16 project radially outwards in diametrically opposite positions. Each sonotrode 14 is normally made of aluminium, titanium or steel, and has, at its free end, an active sealing surface 17, which extends along relative pitch surface 10, is a cylindrical surface, and in plan view is substantially rectangular and substantially the same size as a sealing area 6. Each anvil 16 is bounded at its free end by a contrast surface 18, which is substantially the same size as a sealing area 6 and has ribs 19 parallel to axes 9 and tangent to relative pitch surface 10. A radial longitudinal groove 20, parallel to axes 9, is formed through contrast surface 18 of each anvil 16, and houses a blade 21, a cutting edge 22 of which is tangent to relative pitch surface 10 and made of a metal, normally Vidiam or titanium, of greater surface hardness than the relative sonotrode 14 at relative active sealing surface 17.
The rotors are offset 180°, and rotate in opposite directions and at the same angular speed about respective axes 9, so that the active sealing surface 17 of sonotrode 14 of one of rotors 8 reaches sealing station 4 together with the contrast surface 18 of anvil
16 of the other rotor 8, and rolls on the ridges of ribs 19 of contrast surface 18 , and on cutting edge 22 of blade 21.
Each sonotrode 14 has a central cavity 23, which extends, parallel to axes 9, through sonotrode 14, is substantially tangent to relative active sealing surface 17, and communicates with the outside through a slit 24 formed along active sealing surface 17, at the contact area between relative active sealing surface 17 and cutting edge 22 of relative blade 21.
Each sonotrode 14 also comprises a reinforcing member 25, which is coaxial with relative cavity 23, is fitted inside cavity 23 to close relative slit 24, and is of a surface hardness greater than that of relative sonotrode 14 at relative active sealing surface 17, and substantially equal to that of cutting edge 22 of relative blade 21. In other words, if cutting edge 22 is made of Vidiam, reinforcing member 25 is also made of Vidiam, and a central portion of active sealing surface
17 of each sonotrode 14 is defined by a strip 26 of the lateral surface 27 of relative reinforcing member 25. Strip 26 is located on relative active sealing surface 17 to cooperate, at sealing station 4, with cutting edge 22 of blade 21 fitted to anvil 16 of the other rotor 8. To prevent detachment of reinforcing member 25 from the rest of sonotrode 14, as a result of vibration of sonotrode 14 and heating of the sonotrode in contact with tubular strip 2, cavity 23 encloses reinforcing member 25 to prevent it from slipping out of cavity 23 through slit 24, which is therefore narrower than reinforcing member 25.
Cavity 23 and reinforcing member 25 may be of any cross sectional shape. In the example shown, cavity 23 is defined by a circular-section through hole formed through sonotrode 14, substantially tangent to active sealing surface 17, and having an axis 28 parallel to axes 9 and at a distance from active sealing surface 17 approximately equal to but no greater than the radius of the hole; reinforcing member 25 is defined by a metal, normally Vidiam or titanium, rod fitted inside the hole; and slit 24 is narrower than the diameter of the hole.

Claims

1) A sonotrode having, at one end, an active sealing surface (17) that cooperates with the cutting edge (22) , harder than the sonotrode (14) at the active sealing surface (17) , of a blade (21) ; the sonotrode (14) having a cavity (23) substantially tangent to the active sealing surface (17) and communicating with the outside through a slit (24) formed along the active sealing surface (17) at a contact area between the active sealing surface (17) and the cutting edge (22); the sonotrode comprising a reinforcing member (25) coaxial with the cavity (23) and fitted inside the cavity (23) to close the slit (24); the reinforcing member (25) having a surface hardness greater than that of the sonotrode (14) at the active sealing surface (17) and substantially equal to that of the cutting edge (22) of the blade (21); and the slit (24) being narrower than the reinforcing member (25) . 2) A sonotrode as claimed in Claim 1, wherein the reinforcing member (25) is made of the same material as the cutting edge (22) of the blade (21) .
3) A sonotrode as claimed in Claim 1 or 2 , wherein the reinforcing member (25) is made of Vidiam. 4) A sonotrode as claimed in Claim 1 or 2 , wherein the reinforcing member (25) is made of titanium.
5) A sonotrode as claimed in one of the foregoing Claims, wherein the cavity (23) is a through hole formed through the sonotrode (14) and substantially tangent to the active sealing surface (17) .
6) A sonotrode as claimed in one of the foregoing Claims, wherein the cavity (23) has a substantially circular cross section, and the reinforcing member (25) is a rod fitted inside the cavity (23) .
7) A sonotrode as claimed in Claim 6, wherein the slit (24) is narrower than the diameter of the cavity (23) . 8) A unit for ultrasound sealing and cutting a continuous tubular strip (2) fed along a feed path (P), the unit comprising at least one sonotrode (14), as claimed in any one of the foregoing Claims, and at least one anvil (16) , which are located on opposite sides of the feed path (P) , and are movable to and from a work position, in which the active sealing surface (17) of the sonotrode (14) and a contrast surface (18) of the anvil (16) are positioned facing each other and tangent to the feed path (P); the contrast surface (18) having a central groove (20) housing a cutter blade (21) having a cutting edge (22) crosswise to the feed path (P) , and which cooperates with the active sealing surface (17) of the sonotrode (14) to cut the tubular strip (2) ; the cavity (23) of the sonotrode (14) extending crosswise to the feed path (P) ; the slit (24) being positioned facing the cutting edge (22) of the blade (21) in the work position; and the reinforcing member (25) cooperating, in the work position, with the cutting edge (22) of the blade (21) via the slit (24).
9) A unit as claimed in Claim 8, and comprising two counter-rotating rotors (8) , which have pitch surfaces (10) tangent to each other and to the feed path (P) in the work position, and support the sonotrode (14) and the anvil (16) respectively.
10) An FFS (Form, Fill and Seal) machine comprising a unit (5) for ultrasound sealing and cutting a continuous tubular strip (2), as claimed in Claim 8 or
PCT/IB2008/000398 2007-02-23 2008-02-22 Sonotrode for ultrasound welding and cutting packaging units WO2008102250A1 (en)

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ITBO2007A000115 2007-02-23
IT000115A ITBO20070115A1 (en) 2007-02-23 2007-02-23 SONOTRODO FOR ULTRASOUND AND CUTTING WELDING UNIT

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ITTO20130207A1 (en) * 2013-03-18 2014-09-19 Cavanna Spa ULTRASONIC WELDING DEVICE
WO2016066530A3 (en) * 2014-10-31 2016-06-23 Sig Technology Ag Device, in particular for closing a top portion of a food container, consisting of a laminate with a peeled and folded-back edge region
EP3181465A1 (en) * 2015-12-18 2017-06-21 HILTI Aktiengesellschaft Method and device for filling flexible bag packs
IT201700002424A1 (en) * 2017-01-11 2018-07-11 Easysnap Tech S R L ENGRAVING UNIT FOR REALIZING A SINGLE DOSE PACKAGE WITH BREAKING OPENING
IT201700081932A1 (en) * 2017-07-19 2019-01-19 Massimiliano Monti UTRASONIC WELDING DEVICE AND MACHINE

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WO2010081639A1 (en) 2009-01-15 2010-07-22 Robert Bosch Gmbh Device for welding and separating packaging materials
DE102009002093A1 (en) * 2009-04-01 2010-10-07 Robert Bosch Gmbh Device for welding and separating packaging materials
WO2010112282A1 (en) * 2009-04-01 2010-10-07 Robert Bosch Gmbh Apparatus for welding and separating packaging materials
CN106142537A (en) * 2009-06-16 2016-11-23 海尔曼超声波技术两合有限公司 Ultrasonic processing apparatus and for its transverse sealing sonotrode
US9056427B2 (en) 2009-06-16 2015-06-16 Herrmann Ultraschalltechnik Gmbh & Co. Kg Ultrasonic treatment device and transverse sealing sonotrode for the same
CN106142537B (en) * 2009-06-16 2019-10-01 海尔曼超声波技术两合有限公司 Ultrasonic processing apparatus and transverse sealing sonotrode for it
WO2010145927A3 (en) * 2009-06-16 2011-04-21 Herrmann Ultraschalltechnik Gmbh & Co. Kg Ultrasonic treatment device and transverse sealing sonotrode for the same
CN102421585A (en) * 2009-06-16 2012-04-18 海尔曼超声波技术两合有限公司 Ultrasonic treatment device and transverse sealing sonotrode for the same
WO2010145927A2 (en) * 2009-06-16 2010-12-23 Herrmann Ultraschalltechnik Gmbh & Co. Kg Ultrasonic treatment device and transverse sealing sonotrode for the same
CN102548735A (en) * 2009-10-02 2012-07-04 罗伯特·博世有限公司 Device and method for welding and separating packaging materials for a package
CN102548735B (en) * 2009-10-02 2014-12-17 罗伯特·博世有限公司 Device and method for welding and separating packaging materials for a package
WO2011039131A1 (en) 2009-10-02 2011-04-07 Robert Bosch Gmbh Device and method for welding and separating packaging materials for a package
DE102009045299A1 (en) 2009-10-02 2011-04-07 Robert Bosch Gmbh Apparatus and method for welding and separating packaging materials for packaging
US9079361B2 (en) 2009-10-02 2015-07-14 Robert Bosch Gmbh Device and method for welding and separating packaging materials for a package
US9382026B2 (en) 2010-10-29 2016-07-05 Robert Bosch Gmbh Apparatus for cutting a packaging material for a package
DE102010043090A1 (en) 2010-10-29 2012-05-03 Robert Bosch Gmbh Device for separating a packaging material for a packaging
CN103189184A (en) * 2010-10-29 2013-07-03 罗伯特·博世有限公司 Apparatus for cutting a packaging material for a package
CN103189184B (en) * 2010-10-29 2015-12-16 罗伯特·博世有限公司 For splitting the device for the packaging material packed
WO2012055633A1 (en) 2010-10-29 2012-05-03 Robert Bosch Gmbh Apparatus for cutting a packaging material for a package
EP2572996A1 (en) * 2011-09-26 2013-03-27 Teepack Spezialmaschinen Gmbh & Co. Kg Method and device for producing bags
EP2572997A1 (en) * 2011-09-26 2013-03-27 Teepack Spezialmaschinen Gmbh & Co. Kg Method and device for producing bags
ITTO20130207A1 (en) * 2013-03-18 2014-09-19 Cavanna Spa ULTRASONIC WELDING DEVICE
WO2016066530A3 (en) * 2014-10-31 2016-06-23 Sig Technology Ag Device, in particular for closing a top portion of a food container, consisting of a laminate with a peeled and folded-back edge region
US10870508B2 (en) 2014-10-31 2020-12-22 Sig Technology Ag Device, in particular for closing a top portion of a food container, consisting of a laminate with a peeled and folded-back edge region
EP3212515B1 (en) 2014-10-31 2020-10-21 SIG Technology AG Device, in particular for closing a top portion of a food container, consisting of a laminate with a peeled and folded-back edge region
WO2017102687A1 (en) * 2015-12-18 2017-06-22 Hilti Aktiengesellschaft Method and device for filling flexible tubular bag packaging
US20180334272A1 (en) * 2015-12-18 2018-11-22 Hilti Aktiengesellschaft Method and device for filling flexible tubular bag packaging
CN108367825A (en) * 2015-12-18 2018-08-03 喜利得股份公司 The method and apparatus that hose bag for filling flexible is packed
EP3181465A1 (en) * 2015-12-18 2017-06-21 HILTI Aktiengesellschaft Method and device for filling flexible bag packs
IT201700002424A1 (en) * 2017-01-11 2018-07-11 Easysnap Tech S R L ENGRAVING UNIT FOR REALIZING A SINGLE DOSE PACKAGE WITH BREAKING OPENING
IT201700081932A1 (en) * 2017-07-19 2019-01-19 Massimiliano Monti UTRASONIC WELDING DEVICE AND MACHINE

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