HU218369B - Eljárás infravörös lámpával történő hevítésre - Google Patents

Eljárás infravörös lámpával történő hevítésre Download PDF

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HU218369B
HU218369B HU18/91A HU11891A HU218369B HU 218369 B HU218369 B HU 218369B HU 18/91 A HU18/91 A HU 18/91A HU 11891 A HU11891 A HU 11891A HU 218369 B HU218369 B HU 218369B
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heating
heated
infrared lamp
thermoplastic
printed
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HU18/91A
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HUT60656A (en
HU910118D0 (en
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Anders Andersson
Tom Kjelgaard
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Tetra Laval Holdings And Finance S.A.
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Publication of HU910118D0 publication Critical patent/HU910118D0/hu
Publication of HUT60656A publication Critical patent/HUT60656A/hu
Publication of HU218369B publication Critical patent/HU218369B/hu

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    • 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/0044—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for shaping edges or extremities
    • 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
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/0266—Local curing
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/10—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation for articles of indefinite length
    • 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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1403—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
    • B29C65/1412—Infrared [IR] radiation
    • 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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1477—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation making use of an absorber or impact modifier
    • B29C65/1483—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation making use of an absorber or impact modifier coated on the article
    • 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
    • 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
    • B29C66/73—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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91411—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the parts to be joined, e.g. the joining process taking the temperature of the parts to be joined into account
    • 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
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0822—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using IR radiation
    • 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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1429—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
    • B29C65/1432—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface direct heating of the surfaces 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
    • 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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1429—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
    • B29C65/1464—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface making use of several radiators
    • 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
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/934—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2711/00—Use of natural products or their composites, not provided for in groups B29K2601/00 - B29K2709/00, for preformed parts, e.g. for inserts
    • B29K2711/12—Paper, e.g. cardboard
    • B29K2711/123—Coated

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  • Engineering & Computer Science (AREA)
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  • Oral & Maxillofacial Surgery (AREA)
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  • Chemical & Material Sciences (AREA)
  • Laminated Bodies (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Paper (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Making Paper Articles (AREA)
  • Heat Treatment Of Articles (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Package Closures (AREA)
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Abstract

A találmány tárgya eljárás infravörös lámpával történő hevítésre,melynek során egy infravörös lámpát (1) vagy sugárzáskoncentrálóreflektorral ellátott lámpatelepet használnak a rétegelt, hőre lágyulóanyaggal bevont felület hevítésére, ahol a rétegelt anyag papír- vagykartonlap, melyre jellemző, hogy a rétegelt, folytonos anyagtekercs(4) egyik oldala mentén, a tekercs (4) mozgásának irányában, keskenyfelületet hevítenek, majd a tekercs (4) külső, kiálló,visszahajlításra alkalmas, hőre lágyuló élét (5) a hevítés után akeskeny felület fölé hajlítják. ŕ

Description

A találmány tárgya hevítési eljárás, amelynek során tekercselt, folytonos, rétegelt anyag hőre lágyuló részét infravörös lámpával vagy lámpateleppel melegítjük.
Ismeretesek eljárások hőre lágyuló réteggel bevont csomagolóanyagok infravörös lámpával történő részleges felmelegítésére. A csomagolástechnikában használI nak folytonos anyagfolyamokat, melyek papírból vagy i kartonból vannak, és mindkét oldaluk hőre lágyuló anyaggal van bevonva. A rétegelt anyag egy része lehet alumíniumfólia.
I Az előállítás után a rétegelt anyagot megfelelő szé| lességre vágják, és tárolódobokon raktározzák. A csoma| gológép a csomagolóanyagot nyitott hengerré alakítja, | keresztirányban megfelelő szakaszonként tömiti, és végső csomagolóanyaggá alakítja. Az esetek többségében a rétegelt anyag belső szegélyét védeni kell az alakítás során. Ez végrehajtható úgy, hogy egy laza, hőre lágyuló szalagot helyeznek a rétegelt anyag belső oldalára.
A hőre lágyuló szegély tartalmazhat ragasztott alumíniumfóliát, ami a töltőgépen egy későbbi munkafázisban kerül a rétegelt anyag nyitott szegélyére, ragasztással. Ebben az esetben a folyamatos anyagtekercset a visszahajlítás helyén fel kell melegíteni, a tökéletes tömítés miatt. Ilyen esetben az anyagtekercs elhatárolt felmelegítésére van szükség. Laza műanyag szalag alkalmazása esetén is szükség van a folytonos anyagtekercs
I elhatárolt hevítésére.
Az US 3,861,124 számú szabadalmi leírás helyhez kötött berendezést ismertet, melyben a hevített tárgy a hevítés folyamata alatt nem mozdul el. A hevítendő rész tasakon használatos hőérzékeny szalagból áll. A tasak szomszédos részei nem hőérzékenyek. A hevítés történhet anélkül, hogy befolyással lenne a tasak többi részére. Az US 4,347,091 számú USA szabadalmi leírás berendezést ismertet nyersdarabnak regisztrálótárcsa védőburkolatává történő hajlítására. A hajlítás egy lap alakú alátét körül történik, szakaszos üzemben.
A technika állása szerint ismert eddigi megoldások szerint a visszahajlítandó anyagfolyam szegélyét meleg levegővel hevítették. A meleg levegőt kibocsátó fúvókát a folyamatos anyagfolyam szegélyére irányítják. Ilyen esetben elhatárolt felhevítési zóna alakul ki, amelynek méreteit azonban nehéz behatárolni. Ennek következtében nehéz behatárolni azt a szakaszt, ahol a hőre lágyuló, rétegelt anyagot fel kell hevíteni a visszahajlítás céljából. Ez különösen igaz, ahol a hőre lágyuló réteg alumíniumfóliával van bevonva, mely a hevítés következtében ráncosodásra és hullámosodásra hajlamos, mely a csomagolóanyag gáztömörségét akadályozza. Az ezt követő munkaműveletben a visszahajlítandó szegélyt görgőkkel vagy szíjjal vagy ékszíjjal hajlítják vissza az anyagfolyamra.
A találmány célja a fenti hátrányokat kiküszöbölő eljárás kidolgozása, melynél a mozgó anyagtekercs folytonos hevítését végzik el.
A kitűzött cél értelmében a találmány eljárás infravörös lámpával történő hevítésre, amelynek során egy infravörös lámpát vagy sugárzáskoncentráló reflektorral ellátott lámpatelepet használunk a rétegelt, hőre lágyuló anyaggal bevont felület hevítésére, ahol a rétegelt anyag hordozófelülete papír- vagy kartonlap, és a rétegelt, folytonos anyagtekercs egyik oldala mentén, a tekercs mozgásának irányában, keskeny felületet hevítünk, amelynek külső, kiálló visszahajlításra alkalmas, hőre lágyuló élét a hevítés után a keskeny felület fölé hajlítjuk. Eljárhatunk úgy is, hogy a keskeny, hevített felületet színes szalaggal előnyomtatjuk.
Egy előnyös kialakítási módnál az előnyomtatott, színes szalagot mattsötét színűre színezzük.
A találmányt az alábbiakban célszerű példaképpeni kiviteli alak kapcsán, a csatolt rajzra való hivatkozással ismertetjük részletesebben, ahol az
1. ábra egy folyamatos anyag(folyam)tekercs felé irányuló infravörös lámpa vázlatos képe, míg a
2. ábra a folyamatos anyagi folyam )tekercs egy részlete.
Az 1. ábrán az 1 infravörös lámpa vagy lámpatelep látható, mely egy hagyományos visszaverő 2 ernyővel van összeépítve. A 2 ernyő előre meghatározott távolságra van a sugárzást koncentráló 3 fókuszponttól. Amint a rajzon látható, az 1 infravörös lámpát a 2 ernyővel meghatározott helyre helyezzük, így a 3 fókuszpont „A” távolságra helyezkedik el a 4 anyagfolyam fölött. Ez biztosítja, hogy a sugárzás „B szélességben hat a 4 anyagtekercsen. Az A távolság növelésével a B szélesség növekszik, és viszont. A B szélesség képezi a 4 anyagtekercs hevített, keskeny külső 7 felületét.
Az egymással sorba kapcsolt 1 infravörös lámpák száma a 4 anyagtekercs haladási sebességétől függ, tehát minél nagyobb a 4 anyagtekercs haladási sebessége, annál több 1 infravörös lámpát kell sorba kapcsolni.
Az 1. ábrán látható az anyagtekercsből kinyúló, adott esetben rétegelt alumíniumfóliával bevont 5 él is. Amikor a folyamatos 4 anyagfolyam áthalad az 1 infravörös lámpa vagy a sorba kapcsolt lámpatelep alatt, a folyamatos 4 anyagtekercs kinyúló 5 élen belüli hevített 7 felülete felmelegszik a hőre lágyuló anyag alvadási pontjára. A hevített, keskeny 7 felület így a 4 anyagtekercs haladási irányába eső sávot alkotja.
Miután a hevítésművelet ily módon helyileg korlátozva van, az 5 él folyamatosan felhevíthető például görgők vagy szíj segítségével anélkül, hogy a hőre lágyuló anyaghoz ragasztott alumíniumfólia ráncosodna vagy egyéb módon károsodna.
A 2. ábrán a folytonos 4 anyagtekercs egy részlete látható, amelyen a behajlítás előtt felmelegítendő, keskeny 7 felület egy előre rányomtatott, színes 6 szalaggal van ellátva. Ezt a színes 6 szalagot célszerűen előzetesen nyomják a csomagolóanyagra, amikor annak grafikája készül. A színes 6 szalag előnyösen sötét, matt színű, célszerűen fekete. Az 1 infravörös lámpát úgy választjuk meg, hogy hullámhossza megfelel a fekete színnek.
Az 1 infravörös lámpa működtetésekor a színes 6 szalag elnyeli a hőt, és ily módon több mint 50% energiamegtakarítás érhető el. A színes 6 szalag a hősugárzás koncentrálásában is közreműködik, így jelentéktelen hőmennyiség szóródik ki a színes 6 szalagról.
A fentiekből következően a találmány szerinti eljárással egy folytonos anyagtekercs elhatárolt szakasza hevíthető fel úgy, hogy a felmelegítés nincs hatással a
HU 218 369 Β hőre lágyuló anyag többi részére, és a felmelegítésnek nincs negatív hatása az azt követő behajlításra.
A találmány nem korlátozódik a fent ismertetett kiviteli alakra, hanem az oltalmi körön belül számos változat lehetséges.

Claims (3)

  1. SZABADALMI IGÉNYPONTOK
    1. Eljárás infravörös lámpával történő hevítésre, melynek során egy infravörös lámpát vagy sugárzáskoncentráló reflektorral ellátott lámpatelepet használunk rétegelt, hőre lágyuló anyaggal bevont felület hevítésére, ahol a rétegelt anyag papír- vagy kartonlap, azzal jellemezve, hogy a rétegelt, folytonos anyagtekercs (4) egyik oldala mentén, a tekercs (4) mozgásának irányában keskeny felületet (7) hevítünk, majd a te5 keres (4) külső, kiálló, visszahajlításra alkalmas, hőre lágyuló élét (5) a hevítés után a keskeny felület (7) fölé hajlítjuk.
  2. 2. Az 1. igénypont szerinti eljárás, azzal jellemezve, hogy a keskeny, hevített felületet (7) színes szalaggal
    10 (6) előre nyomtatjuk.
  3. 3. A 2. igénypont szerinti eljárás, azzal jellemezve, hogy az előnyomtatott, színes szalagot (6) matt sötét színűre képezzük ki.
HU18/91A 1990-01-16 1991-01-15 Eljárás infravörös lámpával történő hevítésre HU218369B (hu)

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DE69004945D1 (de) 1994-01-13
CS9100072A2 (en) 1991-08-13
CA2034218C (en) 2000-11-21
YU48001B (sh) 1996-08-13
AU6936591A (en) 1991-07-18
DE69004945T2 (de) 1994-04-28
CZ279662B6 (cs) 1995-05-17
ATE97855T1 (de) 1993-12-15
YU5391A (sh) 1994-11-15
HUT60656A (en) 1992-10-28
HU910118D0 (en) 1991-08-28
KR960013933B1 (ko) 1996-10-10
JPH04211434A (ja) 1992-08-03
KR910014281A (ko) 1991-08-31
JP2889710B2 (ja) 1999-05-10
AU639290B2 (en) 1993-07-22
SE9000154D0 (sv) 1990-01-16
DK0437847T3 (da) 1994-01-17
ES2047814T3 (es) 1994-03-01
SE9000154A (hu) 1991-07-17
EP0437847B1 (en) 1993-12-01
EP0437847A1 (en) 1991-07-24
SE465214B (sv) 1991-08-12
US5113479A (en) 1992-05-12
CA2034218A1 (en) 1991-07-17

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