ITTV20100162A1 - Sistema di applicazione di tappi su contenitori in cartone poliaccoppiato. - Google Patents

Sistema di applicazione di tappi su contenitori in cartone poliaccoppiato. Download PDF

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Publication number
ITTV20100162A1
ITTV20100162A1 IT000162A ITTV20100162A ITTV20100162A1 IT TV20100162 A1 ITTV20100162 A1 IT TV20100162A1 IT 000162 A IT000162 A IT 000162A IT TV20100162 A ITTV20100162 A IT TV20100162A IT TV20100162 A1 ITTV20100162 A1 IT TV20100162A1
Authority
IT
Italy
Prior art keywords
cap
welding
caps
sonotrode
application system
Prior art date
Application number
IT000162A
Other languages
English (en)
Inventor
Galdino Candiotto
Original Assignee
Galdino Candiotto
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 Galdino Candiotto filed Critical Galdino Candiotto
Priority to IT000162A priority Critical patent/ITTV20100162A1/it
Publication of ITTV20100162A1 publication Critical patent/ITTV20100162A1/it

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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
    • 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
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • B29C65/7838—Positioning the parts to be joined, e.g. aligning, indexing or centring from the inside, e.g. of tubular or hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • 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
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
    • B29C65/7879—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined said parts to be joined moving in a closed path, e.g. a rectangular path
    • B29C65/7882—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined said parts to be joined moving in a closed path, e.g. a rectangular path said parts to be joined moving in a circular 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
    • B29C66/01—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
    • 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
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • B29C66/5324—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length
    • B29C66/53245—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow
    • B29C66/53246—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow said single elements being spouts, e.g. joining spouts to containers
    • B29C66/53247—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow said single elements being spouts, e.g. joining spouts to containers said spouts comprising flanges
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/61—Joining from or joining on the inside
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/63—Internally supporting the article during joining
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8221—Scissor or lever mechanisms, i.e. involving a pivot point
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8225—Crank mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8246—Servomechanisms, e.g. servomotors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B65B61/18—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements
    • B65B61/186—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements by applying or incorporating rigid fittings, e.g. discharge spouts
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9241—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
    • 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
    • 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
    • B29L2031/737—Articles provided with holes, e.g. grids, sieves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B50/84—Forming or attaching means for filling or dispensing contents, e.g. valves or spouts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Table Devices Or Equipment (AREA)
  • Cartons (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)

Description

DESCRIZIONE DI INVENZIONE INDUSTRIALE
Avente per titolo: Sistema di applicazione di tappi su contenitori in cartone poliaccoppiato.
STATO ATTUALE DELL’ARTE: L’invenzione in oggetto s'inquadra nell’ambito delle macchine riempitrici per contenitori di cartoncino poli-accoppiato ed in particolare dei dispositivi atti ad applicare su questi un tappo richiudibile in plastica o altri materiali termosaldabili. I contenitori di cartone poli-accoppiato vengono laminati esternamente ed internamente con una pellicola di materiale plastico, che tramite riscaldamento e pressatura dei lembi, permette la loro saldatura senza l’uso di colle o altro. Per versare il prodotto, è necessario strappare la saldatura e piegare verso l'esterno i lembi superiori del tetto in modo da ottenere un opportuno beccuccio versatore. Questo sistema tuttavia pur essendo abbastanza funzionale, non consente la richiusura ermetica del contenitore con un comune tappo a vite, come avviene nelle bottìglie. Per ovviare a questo problema è stato sviluppato e introdotto sul mercato un contenitore più pratico, munito dì tappo a vite applicato sul tetto del contenitore stesso, che consente la sua richiusura una volta aperto il contenitore. Esistono differenti tecniche e tipologie di applicazione del tappo , per esempio: la saldatura con aria calda, l'incollatura, oppure la saldatura ad ultrasuoni. I! tappo può essere applicato dall’interno, o dall’esterno; l'applicazione dall'interno richiede un foro predisposto sul cartone, attraverso il quale viene inserito e fatto sporgere il tappo in modo da renderne possibile la saldatura sul cartoncino, l'applicazione del tappo dall’esterno richiede che nella zona di applicazione siano predisposte incisioni sulle superfici del cartone, al fine di agevolarne la perforazione al momento dell’apertura del contenitore; tali incisioni devono essere molto precise per non danneggiare gli strati protettivi interni del contenitore. I tappi fissati dall'interno sono in genere saldati ad ultrasuoni e sono applicati prima de! riempimento del contenitore; sono preferiti quando è richiesta una saldatura robusta e senza impiego di adesivi o colle industriali. I tappi applicati dall'esterno vengono fissati tramite incollaggio o saldatura a caldo, normalmente, da una macchina dedicata che lavora sul contenitore riempito e sigillato a valle della riempitrice; i tappi per questa applicazione, devono essere costruiti in modo da perforare le incisioni del cartone alla prima apertura. Pur essendo meno sicura dal punto di vista della robustezza della saldatura, questa soluzione è preferita quando si voglia semplificare la macchina riempitrice, I sistemi di applicazione dei tappi dail'interno delle confezioni, attualmente lavorano: o attraverso bracci che operano con movimenti lineari oppure con bracci multipli, rotanti attorno ad un asse; questi applicatori prelevano i tappi da un magazzino, li inseriscono all’interno della confezione, li spingono sul foro predisposto, appoggiano e attivano il sistema di saldatura ad ultrasuoni, a saldatura avvenuta, ripetono le suddette operazioni al contrario per effettuare un nuovo ciclo. SCOPO DELL’INVENZIONE: Scopo dell'invenzione è la realizzazione di un sistema che consenta di applicare tappi in plastica dall’interno della confezione in cartoncino e la saldatura degli stessi, sul contenitore, con tecnica ad ultrasuoni; il sistema, è concepito per essere integrato in macchine riempitrici prima dei riempimento e sigillatura, eliminando quindi del tutto la macchina di applicazione del tappo a valle. L'invenzione presenta notevoli vantaggi che sono: il vantaggio di poter applicare e saldare i tappi in maniera estremamente precisa, dato che, l’apertura e la chiusura della ganascia porta-tappo e del sonotrodo di saldatura, avvengono contemporaneamente attraverso un unico attuatore meccanico, oppure con servomotori. Questo sistema consente di mantenere in modo semplice e per lunghissimi periodi, le regolazioni estremamente precise, uno o due decimi di millimetro, necessarie per avere delle saldature perfette. Inoltre, l'invenzione, risulta estremamente vantaggiosa anche dal punto di vista economico, con meno componenti meno materiali di usura e ridottissimi consumi d’aria compressa, più veloce e silenziosa di analoghi sistemi attualmente in uso. DESCRIZIONE: il gruppo dì applicazione del tappo viene illustrato sulle Tav. 1-2-3 ed è costituito da un struttura di supporto dell'applicatore (1) sulla quale sono montati: uno o più bracci posìzionatori rotanti (2) sulle estremità dei quali sono fissate delle testine porta tappi (6), il sistema di caricamento tappi (5) e il dispositivo di saldatura ad ultrasuoni (10), Tutto il gruppo viene posizionato sopra al trasportatore contenitori della macchina riempitrice, in modo che i contenitori (11) ai quali si deve applicare ìt tappo attraversino l'asse del dispositivo di saldatura. Le varie funzioni sono gestite e controllate tramite un PLC. FUNZIONAMENTO: I tappi vengono allineati, orientati e successivamente, attraverso le guide (7) inviati al supporto (4); che è allineato al braccio rotante (2). Quando un contenitore (11) sul quale si deve saldare il tappo, viene rilevato in corrispondenza delle stazioni previste per l'applicazione, vengono attivati gli spintori di caricamento (5); che trasferiscono t tappi sulle testine porta tappi (6); il braccio rotante (2) è azionato , dal servomotore (14), in fase con lo spostamento del cartone in macchina portando il tappo caricato sulla testina superiore (6), all'interno del contenitore sottostante e posizionandolo davanti al sonotrodo di saldatura (3) al tempo stesso, il braccio rotante (2) porta la testina inferiore (6) in corrispondenza del supporto (4) pronta per ricevere un altro tappo. Il braccio a bilanciere (16), azionato dal servomotore (18) viene spostato nella posizione chiusa (TAV_2, fig. A) in modo che il tappo sulla testina (6) penetri nel foro sul cartone, e il sonotrodo di saldatura (3) si appoggi sulla superficie del cartone, creando la pressione necessaria per la saldatura. Il sistema di saldatura ad ultrasuoni (10), è costituito da un trasduttore (9), che converte, attraverso il sonotrodo (3) l'energia elettrica ad alta frequenza, fornita da un generatore, in energia meccanica, che viene applicata contemporaneamente sulla flangia del tappo (12) e sul cartone (11) effettuando così la saldatura. La forza meccanica di contropressione è regolabile tramite il dispositivo (19), quella elettronica dal PLC dell'applicatore. A saldatura avvenuta, il braccio a bilanciere (16) viene spostato nella posizione aperto (TAV_2, fig. B) allontanando il braccio rotante (2) e il sonotrodo (3) dal cartone e Tapplicatore è pronto per un nuovo ciclo; il trasportatore della macchina riempitrice sposta il cartone con il tappo saldato (15) sulle stazioni successive, e contemporaneamente ne porta uno senza tappo (11) nella stazione di applicazione

Claims (8)

  1. RIVENDICAZIONI 1. Sistema di applicazione di tappi su contenitori in cartone poliaccoppiato caratterizzato da uno o più bracci di comando a bilanciere che avvicinano contemporaneamente il sonotrodo di saldatura all’incudine testina porta tappi in modo da consentire di regolare in modo preciso la forza di chiusura e la conseguente potenza e precisione della saldatura .
  2. 2. Sistema di applicazione di tappi dei tappi secondo rivendicazione 1 , caratterizzato da uno o più bracci incudine che possono ruotare e traslare lungo il loro asse . .. .
  3. 3. Sistema di applicazione di tappi secondo rivendicazione 2, caratterizzato da due o più testine porta tappo per ogni braccio rotante, che durante il funzionamento entrano nel contenitore e posizionano i tappi davanti al sonotrodo di saldatura ad ultrasuoni . . .. . ..
  4. 4. Sistema di applicazione di tappi secondo rivendicazione 1, caratterizzato da una o più slitte sulle quali sono montati trasduttore e sonotrodo del sistema di saldatura . . . . .
  5. 5. Sistema di saldatura tappi secondo rivendicazione 1, caratterizzato da uno o più bracci di comando a bilanciere che, fanno scorrere orizzontalmente il sonotrodo di saldatura e le testine porta tappo, le avvicinano tra loro fino a bloccare saldamente contenitore e tappo da saldare .
  6. 6. Sistema di applicazione di tappi dei tappi secondo rivendicazione 2, caratterizzato da un sistema di rotazione dei bracci azionato da servomotore che gestisce e regola la posizione del braccio stesso... . .
  7. 7. Sistema di applicazione dei tappi secondo rivendicazione 5, caratterizzato da un sistema di traslazione di sonotrodo di saldatura e delle testine porta tappo, azionato da servomotore che consente di controllare e regolare in continuo la pressione di saldatura . . . .. ..
  8. 8. Sistema di applicazione di tappi secondo rivendicazione 5, caratterizzato da forcelle munite di ammortizzatori a molla regolabili che consentono l'ammortizzazione dì eventuali sovraccarichi in fase di saldatura . . .
IT000162A 2010-12-07 2010-12-07 Sistema di applicazione di tappi su contenitori in cartone poliaccoppiato. ITTV20100162A1 (it)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61100517U (it) * 1984-12-06 1986-06-27
JPH02296632A (ja) * 1989-10-25 1990-12-07 Dainippon Printing Co Ltd 液体紙容器の注出口溶着装置
JPH0489328U (it) * 1991-05-16 1992-08-04
JPH0489329U (it) * 1991-05-16 1992-08-04
US6085489A (en) * 1998-06-22 2000-07-11 Nimco Corporation Spout mandrel with energy ring
JP2004331109A (ja) * 2003-05-01 2004-11-25 Toyo Jidoki Co Ltd 超音波シール装置
WO2007039755A2 (en) * 2005-10-05 2007-04-12 Elopak Systems Ag Fitment affixing methods and apparatuses
WO2008125598A1 (en) * 2007-04-12 2008-10-23 Elopak Systems Ag Apparatus and method

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61100517U (it) * 1984-12-06 1986-06-27
JPH02296632A (ja) * 1989-10-25 1990-12-07 Dainippon Printing Co Ltd 液体紙容器の注出口溶着装置
JPH0489328U (it) * 1991-05-16 1992-08-04
JPH0489329U (it) * 1991-05-16 1992-08-04
US6085489A (en) * 1998-06-22 2000-07-11 Nimco Corporation Spout mandrel with energy ring
JP2004331109A (ja) * 2003-05-01 2004-11-25 Toyo Jidoki Co Ltd 超音波シール装置
WO2007039755A2 (en) * 2005-10-05 2007-04-12 Elopak Systems Ag Fitment affixing methods and apparatuses
WO2008125598A1 (en) * 2007-04-12 2008-10-23 Elopak Systems Ag Apparatus and method

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