ES2213683T3 - Dispositivo de soldadura por ultrasonidos para soldar envases de productos alimenticios vertibles. - Google Patents
Dispositivo de soldadura por ultrasonidos para soldar envases de productos alimenticios vertibles.Info
- Publication number
- ES2213683T3 ES2213683T3 ES01830162T ES01830162T ES2213683T3 ES 2213683 T3 ES2213683 T3 ES 2213683T3 ES 01830162 T ES01830162 T ES 01830162T ES 01830162 T ES01830162 T ES 01830162T ES 2213683 T3 ES2213683 T3 ES 2213683T3
- Authority
- ES
- Spain
- Prior art keywords
- generator
- box
- welding
- forming part
- packaging material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- 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
- B29C66/40—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
- 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
- B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81431—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
- B29C66/8145—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/81463—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
- B29C66/81469—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint one placed next to the other in a single line transverse to the feed direction, e.g. shoulder to shoulder sonotrodes
-
- 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
- B29C66/84—Specific machine types or machines suitable for specific applications
- B29C66/849—Packaging machines
-
- 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
- B29C66/87—Auxiliary operations or devices
- B29C66/876—Maintenance or cleaning
-
- 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
- B29C66/87—Auxiliary operations or devices
- B29C66/876—Maintenance or cleaning
- B29C66/8762—Cleaning of the joining tools
-
- 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
- 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
- B29C66/72341—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 for gases
-
- 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
- B29C66/83—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
- 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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/08—Copolymers of ethylene
- B29K2023/086—EVOH, i.e. ethylene vinyl alcohol copolymer
-
- 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
- B29K2029/00—Use of polyvinylalcohols, polyvinylethers, polyvinylaldehydes, polyvinylketones or polyvinylketals or derivatives thereof as moulding material
- B29K2029/04—PVOH, i.e. polyvinyl alcohol
-
- 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
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/0085—Copolymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
- B29K2705/02—Aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- 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
- 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
- B29L2031/7162—Boxes, cartons, cases
- B29L2031/7166—Cartons of the fruit juice or milk type, i.e. containers of polygonal cross sections formed by folding blanks into a tubular body with end-closing or contents-supporting elements, e.g. gable type containers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Package Closures (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Un dispositivo (10) de soldadura por ultrasonidos para soldar envases (7) de un producto alimenticio vertible (2) hecho de material (4) de lámina para envasar, y que comprende: una caja exterior (16); al menos un generador (18) de vibraciones ultrasónicas alojado en dicha caja y que tiene una cabeza definida por una superficie frontal (32) de soldadura que coopera con dicho material (4) de envasar; cuya caja comprende un cuerpo hueco (28), y una parte formadora frontal que aloja a dicha cabeza (25) del citado generador (18) y que tiene una abertura frontal (31) a través de la cual dicha superficie frontal (32) de soldadura del mencionado generador (18) está vuelta hacia fuera; y medios (35, 34, 24, 40, 41) de retención para retener a dicho generador (18) dentro de dicha caja (16); caracterizado porque dicha parte formadora de la citada caja (16) comprende al menos una placa extraíble (42) que se puede extraer independientemente de dichos medios (35, 34, 24, 40, 41) de retención del citado generador (18) para permitir el acceso a dicha cabeza (25) del mencionado generador (18).
Description
Dispositivo de soldadura por ultrasonidos para
soldar envases de productos alimenticios vertibles.
El presente invento se refiere a un dispositivo
de soldadura por ultrasonidos para soldar envases de productos
alimenticios vertibles hechos de material de lámina para
envasar.
En particular, el invento se aplica
preferiblemente, aunque no de forma exclusiva, a una unidad para
formar y soldar envases hechos de un tubo llenado continuamente de
material de lámina para envasar.
Muchos productos alimenticios vertibles, tales
como zumos de frutas, leche pasteurizada o leche UHT (tratada a
temperatura ultraelevada), vino, salsa de tomate, etc., se venden
en envases hechos de material de envasar esterilizado.
Un ejemplo típico de uno de estos envases es el
envase paralelepipédico para productos alimenticios líquidos o
vertibles conocido como el Tetra Brik Aséptico (marca comercial
registrada), que se forma plegando y soldando una banda continua de
material estratificado para envasar. El material estratificado
para envasar comprende capas de material fibroso, por ejemplo papel,
recubiertas por ambas caras con material de plástico termosoldable,
por ejemplo polietileno; y, en el caso de envases asépticos para
productos de almacenamiento a largo plazo tales como la leche UHT,
la cara del material de envasar que eventualmente establece
contacto con el producto alimenticio contenido en el envase tiene
también una capa de material con protección contra oxígeno, por
ejemplo, una lámina de aluminio o de EVOH, que a su vez está
recubierta con una serie de capas de material de plástico
termosoldable.
Como es sabido, tales envases se hacen en
máquinas de envasar totalmente automáticas, en las que se forma un
tubo continuo a partir del material de envasar alimentado en banda
continua; la banda continua de material de envasar se esteriliza en
la propia máquina de envasar, por ejemplo mediante la aplicación de
un agente químico esterilizante, tal como una solución de peróxido
de hidrógeno, la cual, después de la esterilización, se extrae, por
ejemplo vaporizándola por calentamiento, de las superficies del
material de envasar; y la banda continua de material de envasar
así esterilizada se mantiene en un ambiente estéril cerrado, y se
pliega y suelda longitudinalmente para formar un tubo vertical.
El tubo se llena desde la parte superior con el
producto alimenticio esterilizado o tratado en ambiente estéril, y
se sujeta en secciones transversales equidistantes por medio de dos
pares de mordazas. Más específicamente, los dos pares de mordazas
actúan de forma cíclica y sucesiva sobre el tubo para soldar el
material de envasar del tubo y formar una tira continua de
envases- almohadilla unidos entre sí mediante respectivas bandas
transversales de soldadura.
Los envases-almohadilla se
separan mediante el corte de las respectivas bandas de soldadura, y
luego se introducen en una estación final de plegado, donde se
pliegan mecánicamente a la forma paralelepipédica acabada.
En el caso de envases asépticos con una capa de
aluminio como material de protección, las secciones transversales
del tubo se sueldan normalmente mediante la inducción de una
corriente de pérdidas en la capa de aluminio para fundir localmente
el material de plástico termosoldable.
Más específicamente, una de las mordazas de cada
par comprende un cuerpo principal hecho de material no conductor, y
una inductancia alojada en un asiento frontal en el cuerpo
principal; y la otra mordaza comprende almohadillas de presión
hechas de material flexible, por ejemplo caucho.
La inductancia recibe energía eléctrica cuando el
par relativo de mordazas se sujeta alrededor del tubo, con objeto de
soldar una sección transversal del tubo mediante la soldadura del
material de recubrimiento de plástico.
En el caso de envases que no lleven una capa de
aluminio o de otros materiales eléctricamente conductores, las
secciones transversales del tubo se sueldan normalmente usando una
placa caliente para calentar localmente hacia dentro el material
de envasar.
Más específicamente, una de las mordazas lleva la
placa caliente, mientras que la otra normalmente tiene una o más
almohadillas de presión de material flexible. Este método de
soldadura, al que se hace referencia normalmente como soldadura
"de placa caliente", exige un contacto relativamente prolongado
entre la placa caliente y el material de envasar.
Con el fin de acelerar la fusión local del
material de envasar, y de ese modo aumentar la producción de
envases, se está usando de forma creciente la soldadura por
ultrasonidos, que se realiza por medio de un dispositivo para
generar vibraciones mecánicas a frecuencias ultrasónicas (al que en
adelante se hará referencia simplemente como un "dispositivo
ultrasónico"), transportado por una mordaza, y un yunque
transportado por una contra-mordaza y que actúa como
una superficie rígida de soporte; el tubo de material de envasar se
sujeta entre el dispositivo ultrasónico y el yunque de tal manera
que lleve a establecer contacto y a comprimir a dos paredes
enfrentadas del material; y las vibraciones ultrasónicas calientan
el material para fundir el material termoplástico y de ese modo
soldar las paredes del tubo.
Más específicamente, el dispositivo ultrasónico
comprende una caja exterior; uno o más generadores de vibraciones
ultrasónicas (también denominados
"sono-electrodos") alojados en la caja y del
tipo descrito, por ejemplo, en el documento
EP-A-O 615 907; y un par de paredes
en ángulo recto o placas de plegado, que cierran el frente de la
caja y forman una abertura frontal a través de la cual los
generadores cooperan con el material. Las placas de plegado sirven
para salvaguardar a los sono-electrodos contra la
suciedad y el material termoplástico fundido que se forma durante
la operación de soldadura, definir la geometría de contacto de la
mordaza y el material, y de ese modo ayudar a definir la geometría
del envase.
Sin embargo, la suciedad y el material
termoplástico fundido, aún tienden a alojarse dentro de la mordaza a
través de la abertura frontal, por lo que inevitablemente se
requiere una limpieza periódica.
Las mordazas conocidas del tipo anteriormente
descrito adolecen de varios inconvenientes.
En primer lugar, la limpieza de los
sono-electrodos exige extraer por completo las
placas de plegado, lo cual no se puede hacer en el ambiente de
la
producción, y por tanto requiere desarmar totalmente el dispositivo en condiciones de laboratorio y con la ayuda de personal especializado.
producción, y por tanto requiere desarmar totalmente el dispositivo en condiciones de laboratorio y con la ayuda de personal especializado.
En segundo lugar, cuando se producen envases que
lleven un dispositivo preaplicado de apertura, por ejemplo un tapón
que sobresalga del material, una de las placas de plegado, para
impedir la interferencia con el dispositivo de apertura, debe
conformarse de acuerdo con el tipo específico de envase que se
esté produciendo, de tal manera que, en el caso de que sea necesario
efectuar cambios en la producción, se debe extraer y cambiar todo
el dispositivo.
Un objeto del presente invento es proporcionar un
dispositivo de soldadura por ultrasonidos diseñado para eliminar los
inconvenientes anteriormente mencionados típicamente asociados con
lo dispositivos conocidos.
De acuerdo con el presente invento, se provee un
dispositivo de soldadura por ultrasonidos como el reivindicado en la
Reivindicación 1.
A continuación se describe una realización
preferida, sin carácter limitativo, del presente invento a título
de ejemplo y con referencia a los dibujos adjuntos, en los que:
La Figura 1 muestra un alzado esquemático, en
corte parcial, de una unidad de formación y soldadura de una máquina
para envasar productos alimenticios vertibles;
La Figura 2 muestra una vista en perspectiva de
un conjunto de soldadura que forma parte de la unidad de soldadura y
que comprende un dispositivo de soldadura de acuerdo con el
presente invento;
La Figura 3 muestra una vista en perspectiva y a
escala ampliada del dispositivo de soldadura de la Figura 2;
La Figura 4 muestra una vista en perspectiva y en
despiece ordenado del dispositivo de la Figura 3.
En la Figura 1, el número 1 indica en su
totalidad una unidad de formación y de soldadura transversal de una
máquina de envasar para producir envases soldados de un producto
alimenticio vertible 2, por ejemplo, leche pasteurizada o UHT, zumo
de frutas, vino, etc., a partir de un tubo 3 de material 4 de
envasar.
El tubo 3 se forma de una manera conocida aguas
arriba de la unidad 1 plegando longitudinalmente y soldando una
banda continua de material de lámina termosoldable, se llena
continuamente desde la parte superior con el producto alimenticio
2 esterilizado o tratado en ambiente estéril para envasar, y se
introduce axialmente hacia abajo a lo largo de una trayectoria
vertical P a través de la unidad 1.
La unidad 1 comprende dos conjuntos 5 de
formación y soldadura (de los que solamente se ha mostrado uno en la
Figura 1) que interactúan de forma cíclica y sucesiva con el tubo 3
de material de envasar para sujetar el tubo a lo largo de bandas 6
de soldadura transversal equidistantes, realizan una soldadura por
ultrasonidos a lo largo de las bandas 6 para definir una sucesión
de envases-almohadilla 7, y luego cortan y separan
los envases-almohadilla 7.
Cada conjunto 5 - que se describe en la presente
memoria solamente para comprender con claridad el presente invento
- comprende sustancialmente dos mordazas 8 y 9 situadas en los
lados opuestos del tubo 3 y que comprenden respectivamente un
dispositivo 10 de soldadura por ultrasonidos de acuerdo con el
presente invento, y un yunque 11 (Figura 2).
El yunque 11 está definido sustancialmente por
una barra fijada a la mordaza 9 y que tiene, en la parte frontal,
un nervio horizontal superior 12 y un nervio horizontal inferior
13 paralelos entre sí. El yunque 11 comprende también un
intersticio horizontal central 14 interpuesto entre los nervios 12
y 13 y que define un asiento para una cuchilla 15 alojada de una
manera deslizante y controlada por un dispositivo conocido de
accionamiento (no mostrado) para cortar el tubo 3 a lo largo de las
bandas 6 de soldadura transversal.
El dispositivo 10 comprende una caja 16 fijada
la mordaza 8 por dos pestañas extremas 17; y una serie de, por
ejemplo tres, generadores de vibraciones ultrasónicas o
sono-electrodos 18 dispuestos en forma yuxtapuesta y
alojados en la caja 16.
Más específicamente, los
sono-electrodos (Figura 4) son preferiblemente del
tipo descrito en la patente
EP-B-615907, y comprenden una
pestaña intermedia 24 que define un plano nodal, desde la que se
extienden axialmente una cabeza estrechada progresivamente en un
lado, y, en el otro lado, dos masas espaciadas 26 de reacción con
un dispositivo excitador piezoeléctrico 27 alojado entre ellas.
La caja 16 comprende sustancialmente un cuerpo 28
de caja que tiene un número de cavidades yuxtapuestas 29, cada una
de las cuales aloja a unas masas 26 y un dispositivo 27 de un
sono-electrodo respectivo; y una parte formadora
delantera 30, que interactúa con el tubo 3 cuando se forman los
envases, y que tiene una abertura frontal 31 a través de la cual
están vueltas hacia fuera respectivas superficies frontales
coplanares yuxtapuestas de soldadura de las cabezas 25.
Las superficies 32 están divididas
longitudinalmente en dos bandas 32a, 32b por una ranura central 33
para recibir a la cuchilla 15 cuando se corte la banda 6 de
soldadura tras la finalización de la operación de soldadura.
Los sono-electrodos 18 están
fijados a la caja 16 mediante respectivas pestañas intermedias 24,
que están alojadas en respectivos rebajos anulares 35 practicados
en el cuerpo 28 y rodeando a respectivas cavidades 29, y son
retenidos axialmente por la parte formadora 30, convenientemente con
la interposición de anillos 34 de retención para absorber cualquier
vibración residual de las pestañas 24. Se puede interponer un
número variable de suplementos de calibración 37 (Figura 4) entre
la parte formadora 30 y el cuerpo 28.
La parte 30 está definida por un miembro
superior 38 en ángulo recto y un miembro inferior 39 en ángulo
recto, que se acoplan de manera conjugada a lo largo de un plano
central horizontal de simetría \alpha del cuerpo 28, perpendicular
en uso a la trayectoria P del tubo 3 de material de envasar.
Más específicamente, los miembros 38 y 39 en
ángulo recto comprenden respectivas pestañas 40 y 41
sustancialmente planas, fijadas a la parte frontal de la caja 16 y
para retener axialmente a los sono-electrodos 18 en
la forma anteriormente descrita; y placas respectivas 42 y 43 de
plegado, que sobresalen hacia el frente de las respectivas pestañas
40 y 41, se extienden paralelamente al plano \alpha y
transversalmente a las cabezas 25, y sirven para proteger a las
cabezas 25 e interactuar con el tubo 3 para formar los envases.
El miembro inferior 39 es de una pieza, es decir,
la placa inferior 43 de plegado es integral con la pestaña 41.
De acuerdo con el presente invento, la placa
superior 42 de plegado es extraíble. Más específicamente, la placa
superior 42 de plegado es simultáneamente rectangular y plana, y
se apoya en dos soportes laterales 45 y en dos soportes intermedios
46 sustancialmente de forma de viga que sobresalen hacia la parte
frontal desde la pestaña superior 40 y están situados entre las
cabezas 25 de los sono-electrodos 18.
Si los envases que se están produciendo están
dotados de un dispositivo saliente 47 de apertura (Figura 1), una
cara exterior 48 de la placa 42 de plegado comprende
convenientemente un rebajo 49 de forma y posición correspondientes
y para recibir al dispositivo 47 de apertura durante la operación
de formación.
En uso real, las mordazas 8 y 9 de cada conjunto
de formación se accionan cíclicamente de una manera conocida,
comprendiendo cada ciclo las etapas de sujetar al tubo 3 entre el
dispositivo 10 y el yunque 11; introducir las mordazas 8 y 9 en la
posición cerrada a lo largo de una parte de la trayectoria P de una
longitud suficiente para realizar la operación de soldadura a lo
largo de las bandas 32a y 32b de las partes frontales 32 de las
cabezas 25, y la operación de corte; separar las mordazas 8 y 9
para liberar el tubo 3; y volver a introducir las mordazas 8 y 9
hacia arriba, en la posición abierta, para comenzar el ciclo
siguiente.
La limpieza de las cabezas 25 de los
sono-electrodos 18, por ejemplo, para extraer
cualquier suciedad o trazas de material termoplástico fundido
durante las operaciones de soldadura, se puede hacer rápida y
fácilmente sin más que retirar la placa 42 de plegado, que también
se podría sustituir por una placa diferente, por ejemplo, que no
tenga rebajo 49 o que tenga un rebajo conformado de un modo
diferente para recibir un tipo distinto de dispositivo de
apertura.
A diferencia de los dispositivos conocidos, la
placa 42 se puede extraer o sustituir sin desarmar todo el
dispositivo de soldadura, y en particular sin extraer de la caja
los sono-electrodos 18. Además, esta operación se
puede hacer en el ambiente de la producción, reduciendo así el
tiempo y el coste del mantenimiento y del reciclado cuando haya que
realizar cambios en la producción, así como disminuyendo las
pérdidas de producción debidas a paradas de la máquina.
Evidentemente, se pueden introducir cambios al
dispositivo 10 de acuerdo con el presente invento sin, no obstante,
apartarse del alcance de las reivindicaciones adjuntas. En
particular, la placa inferior 43 de plegado se puede quitar ella
sola o en unión de la otra placa 42 de plegado; y los
sono-electrodos podrían ser de cualquier otro tipo,
geometría o número.
Claims (8)
1. Un dispositivo (10) de soldadura por
ultrasonidos para soldar envases (7) de un producto alimenticio
vertible (2) hecho de material (4) de lámina para envasar, y que
comprende:
una caja exterior (16);
al menos un generador (18) de vibraciones
ultrasónicas alojado en dicha caja y que tiene una cabeza definida
por una superficie frontal (32) de soldadura que coopera con dicho
material (4) de envasar;
cuya caja comprende un cuerpo hueco (28), y una
parte formadora frontal que aloja a dicha cabeza (25) del citado
generador (18) y que tiene una abertura frontal (31) a través de la
cual dicha superficie frontal (32) de soldadura del mencionado
generador (18) está vuelta hacia fuera; y
medios (35, 34, 24, 40, 41) de retención para
retener a dicho generador (18) dentro de dicha caja (16);
caracterizado porque dicha parte formadora
de la citada caja (16) comprende al menos una placa extraíble (42)
que se puede extraer independientemente de dichos medios (35, 34,
24, 40, 41) de retención del citado generador (18) para permitir el
acceso a dicha cabeza (25) del mencionado generador (18).
2. Un dispositivo como el reivindicado en la
reivindicación 1, caracterizado porque dichos medios (35,
34, 24, 40, 41) de retención comprenden una pestaña periférica
intermedia (24) de dicho generador (18) que define un plano nodal
del generador (18) y desde la que se extiende axialmente dicha
cabeza (25); estando dicha pestaña (24) interpuesta entre dicho
cuerpo (28) y la citada parte formadora (30) de dicha caja
(16).
3. Un dispositivo como el reivindicado en las
Reivindicaciones 1 ó 2, caracterizado porque dicha parte
formadora (30) comprende dos miembros (38, 39) en ángulo recto
fijados a dicho cuerpo (28), que alojan entre los mismos a dicha
cabeza (25) del citado generador (18), y que forman dicha abertura
frontal (31) de la mencionada caja (16).
4. Un dispositivo como el reivindicado en la
Reivindicación 3, caracterizado porque dichos miembros (38,
39) en ángulo recto están acoplados de manera conjugada a lo largo
de un plano central (\alpha) de dicho dispositivo (10) y
comprenden pestañas respectivas (40, 41) fijadas a dicho cuerpo
hueco (28) y que forman parte de dichos medios (35, 34, 24, 40, 41)
de retención para retener a dicho generador (18); y placas
respectivas (42, 43) de plegado que se extienden desde dichas
pestañas (40, 41) y en una dirección paralela a dicho plano
central.
5. Un dispositivo como el reivindicado en la
Reivindicación 4, caracterizado porque al menos una de
dichas placas (42, 43) de plegado constituye dicha placa extraíble
(42) de la citada parte formadora (30).
6. Un dispositivo como el reivindicado en la
Reivindicación 5, caracterizado porque dicha placa extraíble
(42) de plegado está fijada a un número de miembros (45, 46) de
soporte que sobresalen integralmente de dicha pestaña (40) del
respectivo miembro citado (38) en ángulo recto.
7. Un dispositivo como el reivindicado en una
cualquiera de las Reivindicaciones precedentes, caracterizado
porque dicha placa extraíble (42) tiene una superficie exterior
(48) en la que está practicado un rebajo (49) para alojar un
dispositivo (47) de apertura pre-aplicado a dicho
material (4) de envasar.
8. Un dispositivo como el reivindicado en una
cualquiera de las Reivindicaciones precedentes, caracterizado
porque comprende un número de generadores yuxtapuestos (18) que
tienen las superficies frontales (32) de soldadura de las
respectivas cabezas (25) yuxtapuestas y coplanares entre sí;
extendiéndose dicha placa extraíble (42) transversalmente a dichas
cabezas (25).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01830162A EP1241099B1 (en) | 2001-03-12 | 2001-03-12 | Ultrasonic sealing device for sealing packages of pourable food products |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2213683T3 true ES2213683T3 (es) | 2004-09-01 |
Family
ID=8184437
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES01830162T Expired - Lifetime ES2213683T3 (es) | 2001-03-12 | 2001-03-12 | Dispositivo de soldadura por ultrasonidos para soldar envases de productos alimenticios vertibles. |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1241099B1 (es) |
JP (1) | JP4025098B2 (es) |
AT (1) | ATE259742T1 (es) |
DE (1) | DE60102070T2 (es) |
DK (1) | DK1241099T3 (es) |
ES (1) | ES2213683T3 (es) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005038344A1 (de) * | 2005-08-13 | 2007-02-15 | Tetra Laval Holdings & Finance S.A. | Vorrichtung zum Ultraschallbearbeiten von Werkstücken |
DE102007060442A1 (de) * | 2007-12-14 | 2009-06-18 | Herrmann Ultraschalltechnik Gmbh & Co. Kg | Sonotrode mit U-Spalt |
DE102009002093A1 (de) * | 2009-04-01 | 2010-10-07 | Robert Bosch Gmbh | Vorrichtung zum Schweißen und Trennen von Packstoffen |
EP2368694A1 (en) | 2010-03-22 | 2011-09-28 | Tetra Laval Holdings & Finance S.A. | Sonotrode |
ITMI20120292A1 (it) * | 2012-02-27 | 2013-08-28 | Altopack Spa | Macchina confezionatrice a flusso verticale per pasta alimentare o prodotti similari con gruppo di saldatura trasversale ad ultrasuoni. |
EP2774746B1 (en) * | 2013-03-07 | 2017-04-19 | Tetra Laval Holdings & Finance S.A. | Sonotrode |
JP6553890B2 (ja) * | 2015-02-20 | 2019-07-31 | 日本テトラパック株式会社 | 包装充填装置 |
JP6834958B2 (ja) | 2015-07-30 | 2021-02-24 | 凸版印刷株式会社 | 超音波シール装置 |
JP6881305B2 (ja) * | 2015-08-31 | 2021-06-02 | 凸版印刷株式会社 | 超音波シール装置 |
US10046874B2 (en) * | 2015-11-30 | 2018-08-14 | Sonics & Materials, Inc. | Sealing system and method for gusseted and zippered bags |
EP3238918B1 (en) | 2016-04-28 | 2020-06-17 | Tetra Laval Holdings & Finance S.A. | An assembly for producing sealed packaging units |
CN109292179A (zh) * | 2018-11-01 | 2019-02-01 | 惠州麦丰密封科技有限公司 | 一种带有定位功能的包装封口机 |
DE102022117799A1 (de) | 2022-07-15 | 2024-01-18 | Herrmann Ultraschalltechnik Gmbh & Co. Kg | Ultraschallschwingeinheit mit hartem Entkoppelelement |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE505864C2 (sv) * | 1993-03-19 | 1997-10-20 | Tetra Laval Holdings & Finance | Anordning för ultraljudsförsegling |
-
2001
- 2001-03-12 DK DK01830162T patent/DK1241099T3/da active
- 2001-03-12 ES ES01830162T patent/ES2213683T3/es not_active Expired - Lifetime
- 2001-03-12 AT AT01830162T patent/ATE259742T1/de active
- 2001-03-12 DE DE60102070T patent/DE60102070T2/de not_active Expired - Lifetime
- 2001-03-12 EP EP01830162A patent/EP1241099B1/en not_active Expired - Lifetime
-
2002
- 2002-03-12 JP JP2002066709A patent/JP4025098B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE60102070T2 (de) | 2004-12-30 |
DE60102070D1 (de) | 2004-03-25 |
JP2002337821A (ja) | 2002-11-27 |
EP1241099B1 (en) | 2004-02-18 |
JP4025098B2 (ja) | 2007-12-19 |
ATE259742T1 (de) | 2004-03-15 |
EP1241099A1 (en) | 2002-09-18 |
DK1241099T3 (da) | 2004-05-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES2213683T3 (es) | Dispositivo de soldadura por ultrasonidos para soldar envases de productos alimenticios vertibles. | |
ES2376824T3 (es) | Elemento sellador para termosellar material envasador para producir envases sellados de productos alimenticios capaces de ser vertidos dentro de un tubo de material envasador | |
ES2372874T3 (es) | Un dispositivo de obturación por inducción para material de envase de obturación por calor para producir envases obturados de producto de alimentación vertibles. | |
JP5525514B2 (ja) | 食品の密封パッケージを製造するためのシール用顎状掴み具、及びこれを備えた包装機 | |
ES2540100T3 (es) | Sonotrodo | |
ES2305047T3 (es) | Dispositivo de sellado por induccion para material de envasar termosellable. | |
ES2323539T3 (es) | Dispositivo de sellado para producir envases sellados de un producto de alimentacion vertible. | |
ES2294416T3 (es) | Envase hermetico para productos alimenticios vertibles, y metodo de produccion correspondiente. | |
ES2215874T3 (es) | Metodo de cierre hermetico transversal por ultrasonidos y dispositivo para cerrar hermeticamente paredes de un material de empaquetado lleno de un producto alimenticio. | |
ES2213096T3 (es) | Dispositivo de obturacion transversal ultrasonica y metodo para obturar las paredes de un material de empaquetado relleno de un producto alimentario fluido. | |
ES2231851T3 (es) | Unidad de envasar para producir de manera continua envases obturados, que contienen productos alimentiucios vertibles, a partir de un tubo de material de envasar. | |
ES2392012T3 (es) | Unidad de plegado para máquinas de envasado de productos alimenticios que se pueden verter | |
JP2014505638A (ja) | 注入可能な食品のシールされたパッケージを製造するためにパッケージング材料をヒートシールするための誘導シーリングデバイス | |
JP6367816B2 (ja) | 圧力パッド及び当該圧力パッドを有するヒートシール装置 | |
CN105398047B (zh) | 用于生产食品的密封包装的密封夹爪 | |
ES2285135T3 (es) | Mandibula de conformacion para producir una sucesion de paquetes obturados a partir de un tubo de material de empaquetamiento en lamina. | |
JP2022525158A (ja) | 封止されたパッケージを生成するパッケージ化装置 | |
ES2227000T3 (es) | Maquina para envasado y metodo para producir envases obturados de productos alimenticios vertibles. | |
ES2907039T3 (es) | Un método para formar un tubo y un método y una máquina de envasado para formar un envase | |
ES2218723T3 (es) | Material de lamina para envases, pre-plegado, para envasar productos alimenticios vertibles, y envases obtenidos con el mismo. | |
ES2291289T3 (es) | Dispositivo para termosoldar un tubo de material de embalaje laminar relleno de un producto alimentacio fluido. | |
ES2254936T3 (es) | Metodo y maquina envasadora para producir envases sellados de productos alimenticios vertibles a partir de piezas brutas precortadas de material de envasado en laminas. | |
ES2250251T3 (es) | Maquina se envasar para la prduccion de envases sellados para productos alimenticios vertibles. | |
ES2711084T3 (es) | Máquina envasadora automática horizontal | |
WO2008107495A1 (es) | Sistema y método de envasado vertical |