LT3757B - A forming device in packaging machine - Google Patents

A forming device in packaging machine Download PDF

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Publication number
LT3757B
LT3757B LTIP1822A LTIP1822A LT3757B LT 3757 B LT3757 B LT 3757B LT IP1822 A LTIP1822 A LT IP1822A LT IP1822 A LTIP1822 A LT IP1822A LT 3757 B LT3757 B LT 3757B
Authority
LT
Lithuania
Prior art keywords
tube
plates
packaging material
wrapping
packaging
Prior art date
Application number
LTIP1822A
Other languages
English (en)
Inventor
Dennis Lundmark
Henrik Mansson
Original Assignee
Tetra Laval Holdings & Finance
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20379693&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=LT3757(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Tetra Laval Holdings & Finance filed Critical Tetra Laval Holdings & Finance
Publication of LTIP1822A publication Critical patent/LTIP1822A/xx
Publication of LT3757B publication Critical patent/LT3757B/lt

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/2049—Package shaping devices acting on filled tubes prior to sealing the filling opening
    • 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
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/207—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles the web advancing continuously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3604—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/3656—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint being a layer of a multilayer part to be joined, e.g. for joining plastic-metal laminates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C66/40—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
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • 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
    • B29C66/49—Internally supporting the, e.g. tubular, 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
    • B29C66/71—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
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83541—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws flying jaws, e.g. jaws mounted on crank mechanisms or following a hand over hand movement
    • B29C66/83543—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws flying jaws, e.g. jaws mounted on crank mechanisms or following a hand over hand movement cooperating flying jaws
    • 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
    • B29C66/8491—Packaging machines welding through a filled container, e.g. tube or bag
    • 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
    • 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)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Making Paper Articles (AREA)
  • Basic Packing Technique (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Container Filling Or Packaging Operations (AREA)
  • Package Closures (AREA)

Description

Sis išradimas priskiriamas mašinų gamybai ir jame aprašomas įpakavimo mašinų formavimo įrenginys, formuojantis iš vamzdinio lankstaus įpakavimo lapo atskirus įpakavimo konteinerius, be to, formavimo įrenginys turi tarpusavyje sąveikaujančias U - pavidalo skerspjūvio plokštes, sudarančias savo atraminėmis dalimis praktiškai keturkampę ertmę.
Skysčių - tokių, kaip įpakavimų gamyboje dažnai pienas, sultys ar naudojamas lankstus pan. lapas, Žinomų susidedantis iš popieriaus sluoksnių ir plastiko tipų įpakavimo mašinose įpakavimo lapas nenutrūkstamai išvyniojamas nuo rulono, mašina nuosekliai keičia lapą į vamzdį, užpildo jį pageidaujamu turiniu, skersai suklijuoja ir nupjauna klijavimo zonose. Gauti pagalvėlės pavidalo įpakavimai, turintys apvalų skerspjūvį, toliau formuojami į keturkampio, dažniausiai - stačiakampio skerspjūvio įpakavimus. Užpildyto pageidaujamu skysčiu termoplastinio įpakavimo vamzdžio formavimas į atskirus įpakavimo konteinerius aprašytas 1980 metų TSRS autoriniame liudijime
Nr.865700 ycTpoiicTBo napannenununeAa. Formavimo formuojančiomis kameromis,
Ana oSpaaoBaHun naKeTa b φορΜθ įrenginys turi rotorių su kurias sudaro nejudanti ir slankiojanti sienelės, užuolaidėlės ir kaitinimo elementas. Kitas įpakavimo konteinerių formavimo įrenginys aprašytas 1981 metų Didžiosios Britanijos paraiškoje Nr.1596541 Apparatus for producing generally parallelepipedal packaging containers. Jame įpakavimai formuojami esančia viena prieš kitą ir tarpusavyje sąveikaujančia U - pavidalo skerspjūvio plokščių pora, pasisukančia iš atviros padėties į uždarą padėtį, kurioje plokštės suspaudžia įpakavimo medžiagos vamzdžio atkarpą ir suteikia jam pageidaujamą keturkampę skerspjūvio formą. Kiekviena įpakavimo mašina turi mažiausiai dvi plokščių poras, kurių paviršiai yra lygiagretūs vienas kitam ir įpakavimo vamzdžiui.
Gaminant įpakavimo konteinerius nurodytu būdu, retsykiais įpakavimo medžiagos vamzdis deformuojamas jį suspaudžiant ir sugnybiant, nes, plokštėms užsidarant, vamzdis suspaudžiamas tarp U - pavidalo plokščių atraminių dalių, kurios sudaro ant įpakavimo lapų išilgines klostes arba prakiurdo įpakavimo medžiagos plastikinį sluoksnį. Taip gali būti pažeistas įpakavimo konteinerių sterilumas.
Buvo bandoma įveikti aukščiau minėtas problemas, padengiant vidinius plokščių paviršius medžiaga su mažu trinties koeficientu, kad įpakavimo lapas galėtų laisviau praslysti į U - pavidalo plokščių įdubimus ir nebūtų tarp jų suspaustas. Tačiau šis ir kiti šio uždavinio sprendimai patenkinamo rezultato nedavė.
Šio išradimo tikslas yra įpakavimo mašinų formavimo plokščių sukūrimas, kurios neturėtų aukščiau minėtų trūkumų ir kuriomis būtų galima suteikti įpakavimo medžiagos vamzdžiui keturkampį, dažniausiai kvadratinį arba stačiakampį skerspjūvį, jo nedeformuojant.
Kitas šio išradimo tikslas yra pigaus ir paprasto formuojančio įrenginio, įstatomo į egzistuojančias įpakavimo mašinas, sukūrimas.
Šie tikslai pasiekiami tuo, kiekvienos tarpusavyje sąveikaujančios plokščių poros atraminiuose paviršiuose turi iškyšas įpakavimo vamzdžio plokštėms judant darbinės eigos metu vienai kad formavimo įrenginys nukreipimui, link kitos.
Suteikus suformuotas iš nukreiptas į plokštėms atitinkamos formos iškyšas, įpakavimo lapo vamzdis gali būti be kliūčių
U - pavidalo plokščių įdubimus be jo suspaudimo pavojaus.
Šio išradimo įrenginio labiausiai priimtinas įgyvendinimo variantas žemiau aprašytas detaliau su nuorodomis į pridėtus schematinius brėžinius, kuriuose:
Fig.l - pagrindinis nuo rulono vyniojamo įpakavimo lapo keitimo į atskirus įpakavimo konteinerius principas žinomo tipo įpakavimo mašinoje;
Fig.2 - formavimo įrenginio darbo principas; ir
Fig.3 - paprasčiausia formavimo plokščių poros konstrukcija.
Šio išradimo įrenginys gali būti panaudotas įvairiose įpakavimo mašinose, tačiau, visų pirma, jis įpakavimo mašinai 1, pavaizduotai įpakavimo mašinos gamina skysčių fig.l. Si ir ski riamas panašios tokių, kaip pienas ar sultys - įpakavimus iš lanksčios įpakavimo medžiagos, turinčios pluoštinės medžiagos sluoksnį, dažniausiai popierių, iš abiejų pusių padengtą skysčiui nelaidžiu termoplastines medžiagos sluoksniu, dažniausiai polietilenu. Įpakavimo lapas gali turėti papildomus sluoksnius, pavyzdžiui, aliuminio folijos, apsaugančius lapą nuo dujų ar šviesos poveikio. Įpakavimo lapas 2 patenka į įpakavimo mašiną 1 nuo rulono 3, jį išvyniojant nukreipiančiųjų velenėlių 4 pagalba aukštyn į viršutinę mašinos dalį ir toliau nukreipiant velenėliu 5 vertikaliai žemyn į įpakavimo mašiną. Judantis žemyn per įpakavimo mašiną įpakavimo lapas 2 nuosekliai keičiamas lenkimo įtaisais 6 į vamzdį 7, be to, įpakavimo medžiagos išilginiai kraštai vienas su kitu sandariai suklijuojami užlenkiami ir termoki ij uojanču užpildomas atitinkamu skysčiu per užpildymo vamzdelį 9, įeinantį per atvirą vamzdžio 7 galą praktiškai vertikaliai žemyn tam, kad tekėjimas vyktų į vidinę vamzdžio sritį, esančią betarpiškai virš formavimo Formavimo įrenginiai 10 turi poromis plokštes 11, keičiančias vamzdžio 7 praktiškai apvalų skerspjūvį į keturkampį ar stačiakampį skerspjūvį, kokį turi įpakavimo konteineriai 12. Po galutinio kampinių sienelių ir briaunų, gautų formavimo proceso metu, vidinio lenkimo įpakavimo konteineriai išimami iš įpakavimo mašinos.
įrenginiu 8. Po to vamzdi:
įrenginių 10. sąveikaujančias pusėse plokštėmis 11, be nukreiptos viena į kitą. U - pavidalo skerspjūvi
Aukščiau aprašytas įpakavimo lapo keitimo būdas į atskirus, praktiškai, gretasienius įpakavimo konteinerius yra šios srities technikoje gerai žinomas, todėl akivaizdu, kad nei būdui, nei mašinai, pateiktai pavyzdžio vietoje, smulkesnio aprašyto šiuo atveju nereikia.
Šio išradimo formavimo įrenginys 10 detaliau parodytas fig.2, kurioje pavaizduota vamzdžio 7 atkarpa, suformuota iš įpakavimo medžiagos žinoma ipakavimo mašina. Vamzdis 7 parodytas daliniame pjūvyje, kad būtų aiškiau, kaip užpildymo vamzdelis 9 užpilde vamzdį 7 ir kaip skystis 13 išteka iš užpildymo vamzdelio 9 galo. Vamzdžio 7 apvalus skerspjūvis nuosekliai keičiamas į stačiakampį ar keturkampį formavimo įrenginiu 10 su išdėstytomis abiejose vamzdžio 7 to, plokštės išdėstytos paromis ir Kiekviena plokštė turi praktiškai (fig.3), sienelę 14 ir dvi tarpusavyje lygiagrečias atramas 15. Kiekvienos plokštės 11 pagrinde yra horizontalus iškyšulys 16, sujungiantis plokštę 11 su sulydymo žiauna 17. Sulydymo žiaunos pritvirtintos taip, kad jas būtų galima perkelti neparodytomis svirtimis ar darbiniais elementais prie įpakavimo mašinos 1 rėmo, dėka to, veikiant mašinai, jos gali būti perkeltos horizontaliai viena prie kitos ir viena nuo kitos, o taip pat aukštyn ir žemyn tarp viršutinės ir apatinės padėčių, atitinkančių fig.2 parodytas padėtis. Plokštės 11 taip pat gali būti pasuktos į atvira ir uždara padėtis, parodytas fig.2 viršuje ir apačioje (darbinė padėtis). Šie perkėlimai atliekami neparodytais sujungimais, numatytais jungiamiesiems iškyšuliams 18, esantiems kiekvienoje plokštės 11 pusėje. Tiek sulydymo žiaunų 17, tiek ir plokščių 11 įrengimas bei jų judėjimas, veikiant mašinai, gerai žinomi šios srities technikoje (pavyzdžiui, iš EP 90712 aprašymo), ir čia smulkiau aprašomi nebus.
Kaip nurodyta aukščiau, kiekviena plokštė 11 turi sienelę 14 ir atramas 15, kurių atsukti į vamzdį 7 darbiniai paviršiai išdėstomi vienas prie kito, todėl dvi tarpusavyje prigludusios plokštės kartu sudaro keturkampio skerspjūvio ertmę įpakavimo medžiagos vamzdžiui, kurio perimetras praktiškai atitinka ertmės perimetrą. Kai plokštės 11 yra darbinėje padėtyje, atramų 15 paviršiai 19 priglunda vienas prie kito, todėl plokštėmis sudaromos keturkampės ertmės išmatavimai yra tiksliai apibrėžti. Atraminiai paviršiai 19 viršutinėje plokščių pusėje turi plokščias sritis, tiksliai sutampančias su aukščiau minėtomis šarnyrinėmis prielajomis 18, o kitoje pusėje - iškyšas 20, įeinančias į įdubimus 21. Iškyšos 20 ir įdubimai 21 išdėstyti vieni prieš kitus tokiu būdu, kad viena plokščių pora turi iškyšą virš šarnyrinės prielajos 18 ir Įdubimą 21 po šarnyrine prielaja, o kitoje pusėje įdubimas 21 yra virš šarnyrinės prielajos, o iškyša 20 - po ja. Kadangi plokštės 11 yra vienodos ir abiejų plokščių iškyšos 20 ir įdubimai 21 gali įsiskverbti vieni į kitus, tai, plokštėms judant, jų atraminiai paviršiai susiglaudžia. Išoriniame krašte iškyšos 20 turi nuožulas 22, mažinančias atramos 15 ir vamzdžio 7 trintį kontakto metu.
Naudojant formavimo Įrenginį aukščiau minėto tipo Įpakavimo mašinose, dviejų sąveikaujančių plokščių pora, veikdama pakaitomis, pastumia vamzdi 7, ir fig.2 viršuje parodyta sulydymo žiaunų 17 pora susiglausdama suspaudžia vamzdį 7, įkaitina termoplastinį lapo sluoksnį ir padaro skysčiui nelaidžią siūlę. Sulydymo žiaunų 17 suvedimo metu plokštės 11 yra atviroje padėtyje, t.y. šiek tiek nukreiptos išorėn, todėl tiesiogiai nekontaktuoja su vamzdžiu. Iš pavaizduotos aukščiau fig.2 padėties plokštės 11 palaipsniui susiglaudžia šarnyrinių prielajų 18 pagalba ir pasisuka aplink savo atitinkamas ašis 16 taip, kad išorinės plokščių (t.y. iškyšų 20 nuožulos 22) 7 išorinio krašto. Judant atraminių paviršių 19 sritys prisiglaudžia prie vamzdžio plokštėms 11 viena į kitą ir sulydymo žiaunoms 17 į fig.2 apačioje pavaizduotą padėtį, vamzdžio 7 apvalus skerspjūvis iškyšų 20, atramų 15 ir sienelių 14 darbinių paviršių dėka bus suformuotas į keturkampį. Tarpusavyje sąveikaujančių iškyšų 20 ir įdubimų 21 dėka išvengiama pavojaus, kad vamzdžio sritys bus suspaustos tarp atraminių paviršių 19. Kadangi atraminiai paviršiai yra banguoti ir turi nuožulas 22, įpakavimo lapui suteikiama padėtis, atitinkanti plokščių judėjimą Įrenginio veikimo metu, todėl visiškai išvengiama vamzdžio suspaudimų ar pažeidimų, naudojant šio išradimo formavimo plokštes. Kai sulydymo žiauna 17 pasiekia apatinę padėti, parodytą fig.2, skersinės vamzdžio 17 srities sujungimas baigtas, ir sulydymo žiaunos atsitraukia viena nuo kitos, o plokštės 11 grįžta į pradinę atvirą padėtį, parodytą fig.2 viršuje. Tokiu būdu, sulydymo žiaunos 17 ir sujungtos su jomis plokštės 11 palaipsniui apdirba vamzdį 7 ir padalina jį skersinėmis siūlėmis į atskirus, bet dar surištus įpakavimo konteinerius su keturkampiu skerspjūviu. Perpjovus įpakavimo konteinerius per skersinę siūlę ir apdirbus atsikišusias briaunas bei kampines sieneles, gaunami gerai žinomi gretasieniai įpakavimo konteineriai.

Claims (4)

  1. IŠRADIMO APIBRĖŽTIS
    1. Įpakavimo mašinų, formuojančių iš lankstaus įpakavimo lapo atskirus įpakavimo konteinerius, formavimo įrenginys (10), turintis tarpusavyje sąveikaujančias U pavidalo skerspjūvio plokštes (11), susiliečiančias poromis savo atramomis (15) ir sudarančias keturkampes ertmes, bes i sk i r i a n t. i s tuo, kad kiekvienos plokščių poros atraminiai paviršiai (19) turi iškyšas (20), nukreipiančias vamzdį (7), plokštėms (11) judant vienai link kitos.
  2. 2. Įrenginys pagal 1 punktą, besiski riantis tuo, kad kiekviena atrama (15) turi iškyšą (20), atitinkančią prieš ją antros plokštės (11) atramoje esanti įdubimą (21).
  3. 3. Įrenginys pagal 1 punktą, besiskiriantis tuo, kad atramų (15) paviršiai (19) yra banguoti.
  4. 4. Įrenginys pagal bet kurį punktą, besiskiriantis tuo, kad iškyšos (20) turi nuožulas (22), vamzdžio (7) įėjimą į plokščių (11) ertmę.
    palengvinančias
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AR248108A1 (es) 1995-06-30
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SE466306B (sv) 1992-01-27
JP3096317B2 (ja) 2000-10-10
CN1027628C (zh) 1995-02-15
LV11143A (lv) 1996-04-20
CS173291A3 (en) 1992-01-15
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