DE19736462A1 - Heating of thermoplastic preform for thermal forming - Google Patents
Heating of thermoplastic preform for thermal formingInfo
- Publication number
- DE19736462A1 DE19736462A1 DE19736462A DE19736462A DE19736462A1 DE 19736462 A1 DE19736462 A1 DE 19736462A1 DE 19736462 A DE19736462 A DE 19736462A DE 19736462 A DE19736462 A DE 19736462A DE 19736462 A1 DE19736462 A1 DE 19736462A1
- Authority
- DE
- Germany
- Prior art keywords
- radiation
- blank
- intensity
- radiation source
- maximum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
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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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/42—Heating or cooling
- B29C51/421—Heating or cooling of preforms, specially adapted for thermoforming
- B29C51/422—Heating or cooling of preforms, specially adapted for thermoforming to produce a temperature differential
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/78—Measuring, controlling or regulating
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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
- 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
- B29C35/0288—Controlling heating or curing of polymers during moulding, e.g. by measuring temperatures or properties of the polymer and regulating the process
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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
- 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
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/64—Heating or cooling preforms, parisons or blown articles
- B29C49/6409—Thermal conditioning of preforms
- B29C49/6418—Heating of preforms
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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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/64—Heating or cooling preforms, parisons or blown articles
- B29C49/6409—Thermal conditioning of preforms
- B29C49/6436—Thermal conditioning of preforms characterised by temperature differential
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/0033—Heating devices using lamps
- H05B3/0038—Heating devices using lamps for industrial applications
- H05B3/0057—Heating devices using lamps for industrial applications for plastic handling and treatment
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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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Toxicology (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Warmverformen von Thermoplasten nach dem Oberbegriff des Pa tentanspruches 1 bzw. dem Oberbegriff des Patentanspruches 12.The invention relates to a method and an apparatus for Thermoforming of thermoplastics according to the generic term of Pa claim 1 or the preamble of claim 12.
Bei derartigen Verfahren bzw. Vorrichtungen kommt es ganz we sentlich darauf an, daß der Rohling ein zur Verformung geeigne tes Temperaturprofil aufweist, das dem herzustellenden Endpro dukt angepaßt ist. Ein derartiges Temperaturprofil kann bei komplizierten Formen des Produktes, insbesondere dann, wenn niedrige Wandstärken gewünscht sind, relativ kompliziert bzw. über die Umfangsfläche des Formkörpers hinweg sehr inhomogen seien. Gewünscht ist allerdings eine nahezu konstante Tempera tur über die gesamte Wandstärke, also die "Tiefe" des Rohlings. Um dies zu erreichen, wird bisher insbesondere mit Heißluft quellen oder auch Infrarotstrahlern, in vielen Fällen auch mit beheizten, in mehreren Stufen arbeitenden Formen (z. B. beim Tiefziehen) gearbeitet. Hierbei kann die Wärme praktisch aus schließlich über die Oberfläche des Rohlings zugeführt werden, so daß man zur Erzielung der konstanten Temperatur im Mate rialinneren, also über dessen Wandstärke auf den Wärmetransport durch Wärmeleitung innerhalb des Materials angewiesen ist. Dies wiederum setzt eine relativ langsame Erwärmung bzw. Verweilzei ten voraus, innerhalb derer der Temperaturausgleich (über die Tiefe des Materials) stattfinden kann. Dadurch werden Verfahren und Vorrichtung der eingangs genannten Art aufwendig und störanfällig. Insbesondere ist auch die Einstellung eines ge eigneten Temperaturprofils über die räumlichen Ausdehnungen des Rohlings ausgesprochen schwierig.With such methods and devices, it all happens Considerable that the blank is suitable for deformation tes temperature profile that the Endpro product is adjusted. Such a temperature profile can complicated forms of the product, especially if low wall thicknesses are desired, relatively complicated or very inhomogeneous over the circumferential surface of the molded body be. However, an almost constant temperature is desired over the entire wall thickness, ie the "depth" of the blank. To achieve this, so far, especially with hot air swell or infrared emitters, in many cases also with heated molds working in several stages (e.g. in the Deep drawing) worked. Here, the heat can practically finally fed over the surface of the blank so that to achieve the constant temperature in the mate rial interior, i.e. via its wall thickness on the heat transport by heat conduction within the material. This again, a relatively slow warming or dwell time sets in ten ahead, within which the temperature compensation (via the Depth of material) can take place. This creates procedures and device of the type mentioned expensive and prone to failure. In particular, the setting of a ge suitable temperature profile over the spatial dimensions of the Blanks extremely difficult.
Der Erfindung liegt die Aufgabe zugrunde, Verfahren und Vor richtung der eingangs genannten Art dahingehend weiterzubilden, daß eine vereinfachte Erwärmung des Rohlings mit verbesserter Temperatur-Genauigkeit erzielbar ist.The invention is based, task and method to further develop the direction of the type mentioned at the beginning, that a simplified heating of the blank with improved Temperature accuracy can be achieved.
Diese Aufgabe wird durch ein Verfahren nach Anspruch 1 bzw. eine Vorrichtung nach Anspruch 12 gelöst.This object is achieved by a method according to claim 1 or solved a device according to claim 12.
Ein wesentlicher Punkt der Erfindung liegt darin, daß die Wärme über Strahlung definierter Intensität einer Strahlungsquelle dem Rohling so zugeführt wird, daß die Energie nicht nur an den Außenflächen des Rohlings sondern auch gleichzeitig im Inneren des Materials zur Temperaturerhöhung aufgenommen wird. Dies wiederum geschieht dadurch, daß das Intensitätsmaximum der Strahlungsquelle derart auf die Absorptions- bzw. Trans missionseigenschaften des zu bearbeitenden Thermoplasten ange paßt wird, daß die Energie auch tatsächlich in das Material eindringen kann und nicht - wie bei den sonst üblichen längeren Wellenlängen - schon in oberflächennahen Bereichen des Rohlings absorbiert wird.An essential point of the invention is that the heat about radiation of a defined intensity of a radiation source the blank is fed so that the energy not only to the Outside surfaces of the blank but also inside at the same time of the material for increasing the temperature is recorded. This in turn happens in that the intensity maximum of Radiation source on the absorption or trans mission properties of the thermoplastic to be processed is that the energy actually fits into the material can penetrate and not - as with the usual longer ones Wavelengths - even in near-surface areas of the blank is absorbed.
Vorzugsweise liegt das Intenstitätsmaximum im nahen Infrarot, insbesondere bei 0,8-1,4 µm, vorzugsweise bei 0,8-1,0 µm, also in einem Bereich von Wellenlängen, die erheblich kürzer sind als die Wellenlängen, bei welchen das Intensitätsmaximum üblicher Wärmestrahlungsquellen liegt. Bevorzugtermaßen wird nicht nur eine erheblich gleichmäßigere Erwärmung des Rohlings in seiner Tiefe erreicht, sondern auch eine erheblich schnellere Erwärmung. Bei Verwendung eines Temperaturstrahlers mit zumindest im wesentlichen einem kontinuierlichen Strah lungsspektrum ergibt sich dies dadurch, daß bei der hier vorge schlagenen Einstellung des Intensitätsmaximums auf kürzere Wellenlängen die Strahlungsintensität etwa mit der 4. Potenz der Temperatur des Strahlers zunimmt. The intensity maximum is preferably in the near infrared, especially 0.8-1.4 µm, preferably 0.8-1.0 µm, So in a range of wavelengths that are significantly shorter are as the wavelengths at which the intensity maximum usual sources of heat radiation. Is preferred not only a considerably more uniform heating of the blank reached in depth, but also significantly faster warming. When using a temperature radiator with at least essentially one continuous jet lungsspektrum this results from the fact that at the here suggested setting of the intensity maximum to shorter Wavelengths the radiation intensity with the 4th power the temperature of the heater increases.
Vorzugsweise wird die Strahlung mittels optischer Einrichtun gen, insbesondere Spiegel, Gitter oder dergleichen Einrichtun gen der Strahlungs-Optik derart verteilt dem Rohling zugeführt, daß ein der Formeinrichtung angepaßtes Temperaturprofil inner halb des Rohlings nach Ablauf des definierten Zeitraums einge stellt wird. Es wird also nicht die Strahlungsquelle z. B. durch Energiezufuhr eingestellt bzw. verändert, es wird viel mehr die dem Rohling zugeführte Strahlung den Anforderungen entsprechend "eingestellt". Hierbei ist es von Vorteil, daß die Strahlung ihr Intensitätsmaximum bei den vorgenannten Wellenlängenbereichen aufweist, so daß die üblichen Mittel der Strahlungs-Optik verwendbar sind.The radiation is preferably by means of optical devices conditions, in particular mirrors, gratings or the like distributed to the blank in such a way as to the radiation optics, that a temperature profile adapted to the molding device inside half of the blank after the defined period is posed. So it is not the radiation source z. B. adjusted or changed by supplying energy, it becomes a lot more the radiation supplied to the blank meets the requirements accordingly "set". It is advantageous that the Radiation their maximum intensity at the aforementioned Has wavelength ranges, so that the usual means of Radiation optics can be used.
Besonders vorzugsweise werden die zu erwärmenden Objekte bzw. Rohlinge mit einer Strahlungsflußdichte über 0,5 MW/m2, insbe sondere über 1 MW/m2 beaufschlagt.The objects or blanks to be heated are particularly preferably subjected to a radiation flux density of more than 0.5 MW / m 2 , in particular more than 1 MW / m 2 .
Vorzugsweise wird die Wellenlänge des Intensitätsmaximums durch Einstellung, insbesondere aber durch eine Regelung (also Messung und Rückführung der relevanten Strahlungsgrößen) der Temperatur eines Heizelements eingestellt. Besonders bevorzugt ist hierbei die Einstellung der Wendel-Temperatur einer Halo genlampe. Nachdem diese auf relativ hohe, für Halogenlampen un üblich hohe Temperaturen (zur Erreichung der genannten kurzen Wellenlängen) eingestellt werden muß, sind vorzugsweise ent sprechende Maßnahmen getroffen, um dennoch eine lange Lebens dauer der verwendeten Halogenlampe zu gewährleisten. Insbeson dere werden hierfür besondere Kühlungsmaßnahmen sowohl im Be reich der (Quarz-)Glaskörper als auch im Bereich der Sockel der Halogenlampen getroffen.The wavelength of the intensity maximum is preferably determined by Attitude, but especially through a regulation (i.e. Measurement and feedback of the relevant radiation parameters) Temperature of a heating element set. Particularly preferred is the setting of the spiral temperature of a halo gene lamp. After this on relatively high, for halogen lamps un usual high temperatures (to achieve the short Wavelengths) must be set, are preferably ent speaking measures taken to still have a long life to ensure the duration of the halogen lamp used. In particular For this purpose, special cooling measures are used both in loading rich in the (quartz) vitreous as well as in the base of the Halogen lamps hit.
Um nun die Intensität den Anforderungen entsprechen einzu stellen, wird vorzugsweise alternativ oder kumulativ die Ent fernung zwischen der Strahlungsquelle und dem Rohling und/oder eine optische Filtereinrichtung wie Gitter oder Graufilter oder dergleichen und/oder Choppereinrichtungen verwendet. In order to include the intensity to meet the requirements , the Ent is preferably alternatively or cumulatively distance between the radiation source and the blank and / or an optical filter device such as grating or gray filter or the like and / or chopper devices used.
Bei dem kommerziell besonders interessanten Bereich der Verwen dung des Verfahrens zur Herstellung von Polyethylen-Flaschen wird vorzugsweise so vorgegangen, daß der definierte Aufheiz- oder Bestrahlungs-Zeitraum 10 sec, besonders bevorzugterweise 5 sec nicht wesentlich überschreitet. Dadurch ist zum einen eine gleichmäßige Erwärmung der üblichen Rohlinge oder Preforms sichergestellt, andererseits kann mit hoher Geschwindigkeit produziert werden.In the commercially interesting area of use the process for the production of polyethylene bottles is preferably carried out so that the defined heating or Irradiation period 10 sec, particularly preferably 5 sec does not significantly exceed. On the one hand, this is one uniform heating of the usual blanks or preforms ensures, on the other hand, at high speed to be produced.
Der Preform wird vorzugsweise im wesentlichen unmittelbar nach Beaufschlagung mit der Strahlung ohne wesentliche strahlungsbe aufschlagungsfreie Verweildauer dem Formwerkzeug, insbesondere einer Blas-Streck-Einrichtung zur Verformung übergeben. Dadurch ist sichergestellt, daß sich das (insbesondere durch Optiken) eingestellte Temperaturprofil entlang des Körper nicht durch Wärmeleitung innerhalb des Preforms verändern kann.The preform is preferably essentially immediately after Exposure to radiation without significant radiation no-impact dwell time of the mold, in particular passed to a blow-stretching device for deformation. Thereby it is ensured that this (especially through optics) set temperature profile along the body Thermal conduction within the preform can change.
Zur Herstellung von Tiefziehteilen ist es bevorzugt, wenn der Rohling in einem, im wesentlichen kalten Werkzeug ohne wesent liche Wärmezufuhr von dem Werkzeug auf den Rohling verformt wird. Insbesondere kann dies geschehen, indem der Rohling in einem einzigen Ziehvorgang geformt wird. Dadurch ist gewähr leistet, daß das (insbesondere durch optische Mittel) einge stellte Temperatur-Profil im Rohling im wesentlichen beibehal ten bleibt und die Gefahr eines Anklebens des Rohlings am Tief ziehwerkzeug vermieden wird, wie dies insbesondere bei solchen Tiefziehwerkzeugen der Fall ist, bei welchen die Erwärmung des Rohlings durch das Werkzeug selbst erfolgt.For the production of deep-drawn parts, it is preferred if the Blank in an essentially cold tool with no essential heat from the tool is deformed onto the blank becomes. In particular, this can be done by placing the blank in is formed in a single pull. This guarantees does that (especially by optical means) essentially maintained the temperature profile in the blank remains and the danger of the blank sticking to the low drawing tool is avoided, as is particularly the case with such Thermoforming tools is the case in which the heating of the Blanks done by the tool itself.
Die erfindungsgemäße Vorrichtung umfaßt also eine Strahlungs quelle mit einer Regeleinrichtung zum Regeln eines Emissions wellenlängenbereichs der Strahlungsquelle derart, daß das In tensitätsmaximum der Strahlungsquelle in einem Wellenlängenbe reich liegt, innerhalb dessen der Thermoplast mit einem niedri gen Absorptionsgrad bzw. einem höheren Transmissionsgrad als bei längeren Wellenlängen einfallende oder auftreffende Strah lung absorbiert bzw. hindurchläßt oder eindringen läßt. Diese Strahlungsquelle ist vorzugsweise so ausgebildet, daß ihr In tensitätsmaximum im nahen Infrarot, insbesondere bei 0,8 bis 1,4 und besonders bevorzugterweise bei 0,8 bis 1,0 µm liegt. Der Absorptionsgrad soll hierbei so niedrig sein bzw. der Transmissionsgrad so hoch sein, daß eine der Dicke des zu bear beitenden Rohlings entsprechende Eindringtiefe der Strahlung sichergestellt ist und der Rohling nicht nur an seiner Oberflä che sondern von Anfang an (also ohne Temperaturausgleich über Wärmeleitung) in seinem Inneren erwärmt wird.The device according to the invention thus comprises a radiation source with a control device for controlling an emission wavelength range of the radiation source such that the In intensity maximum of the radiation source in a wavelength range is rich, within which the thermoplastic with a low absorption or a higher transmittance than beam incident or striking at longer wavelengths lung absorbs or lets through or lets penetrate. This Radiation source is preferably designed so that its In intensity maximum in the near infrared, especially at 0.8 to 1.4 and particularly preferably 0.8 to 1.0 µm. The degree of absorption should be so low or the Transmittance should be so high that one of the thickness of the bear corresponding blank penetration depth of the radiation is ensured and the blank not only on its surface but from the beginning (i.e. without temperature compensation via Heat conduction) is heated inside.
Vorzugsweise werden Spiegel, Gitter oder dergleichen Einrich tungen der Strahlungs-Optik vorgesehen, um den Rohling mit ei nem Temperaturprofil zu erwärmen, welches zur Formung optimal ist.Mirrors, gratings or the like are preferably used the radiation optics provided to the blank with egg nem temperature profile, which is optimal for shaping is.
Bei der als Strahlungsquelle vorzugsweise vorgesehenen Halogen lampe oder dergleichen Strahlungseinrichtung mit einem Heiz element ist vorzugsweise zur Regelung der Wendel-Temperatur ein Stromregler vorgesehen, der einen Ist-Wert aus einem entspre chend ausgebildeten Fühler (Pyrometer) erhält, um die Wendel temperatur bzw. den Wellenlängenbereich, bei welchem sich das Intensitätsmaximum der Strahlungsquelle befindet, konstant zu halten und entsprechend den eingangs genannten Vorgaben einzu stellen.In the case of the halogen which is preferably provided as the radiation source lamp or similar radiation device with a heater element is preferably used to control the coil temperature Current controller provided that corresponds to an actual value from a accordingly trained sensor (pyrometer) receives to the coil temperature or the wavelength range at which the Intensity maximum of the radiation source is constant hold and enter according to the requirements mentioned at the beginning put.
Weiterhin wird auch die Intensität (durch Störgrößenaufschal tung bzw. einen Vergleich von Soll- und Ist-Werten) geregelt, so daß innerhalb der eingestellten Zeit der Strahlungsbeauf schlagung das gewünschte Temperaturprofil erreicht wird. Diese Intensitätseinstellung kann durch die Entfernung zwischen Strahlungsquelle und Rohling und/oder optische Filtereinrich tungen und/oder eine Choppereinrichtung geschehen, welche sozu sagen "Strahlungspakete" zum Rohling gelangen lassen, wobei die Choppergeschwindigkeit so gewählt ist, daß die "Paketdauern" sehr kurz sind in Relation zum Gesamtzeitraum, über welchen dem Rohling Energie zugeführt wird.Furthermore, the intensity (through disturbance variable detection or a comparison of target and actual values), so that the radiation is the desired temperature profile is reached. This Intensity setting can be determined by the distance between Radiation source and blank and / or optical filter device tion and / or a chopper happen, which so say "radiation packets" get to the blank, the Chopper speed is chosen so that the "packet duration" are very short in relation to the total period over which the Blank energy is supplied.
Bei der Herstellung von PET-Flaschen wird die Anordnung derart gewählt, daß der Rohling innerhalb einer Zeitdauer von unter 10 sec, vorzugsweise von unter 5 sec in den Bereich der Strah lungsquelle gebracht und aus diesem wieder entfernt wird, so daß kein wesentlicher Temperaturausgleich unter Abänderung des (durch optische Einrichtungen) eingestellten Temperaturprofils geschehen kann. Zusätzlich oder auch alternativ wird die ge samte Vorrichtung zur Herstellung von PET-Flaschen derart aus gebildet und mit nahe beieinander liegenden Stationen (Strahlungsquelle, Formwerkzeug) und mit schnellen Förderein richtungen ausgestattet, daß keine wesentliche Verweildauer des Rohlings bzw. Preforms vorliegt, innerhalb deren eine Beauf schlagung mit Strahlungsenergie zur Erwärmung vor der Verfor mung in der Blas-Streck-Einrichtung geschehen kann. Auch da durch wird das eingestellte Temperaturprofil im Preform erhal ten.In the production of PET bottles, the arrangement is like this chosen that the blank within a period of less than 10 sec, preferably less than 5 seconds in the area of the beam source and removed from it, so that no significant temperature compensation while changing the temperature profile set by optical devices can happen. Additionally or alternatively, the ge Entire device for the production of PET bottles in this way formed and with stations close to each other (Radiation source, mold) and with fast conveying directions equipped that no significant residence time of the Blanks or preforms are available, within which a Beauf Blowing with radiation energy for heating before the deformation tion can happen in the blow-stretching device. There too the set temperature profile in the preform is obtained ten.
Bei der Herstellung von Tiefziehteilen wird ein Tiefziehwerk zeug benutzt, welches eine relativ (gemessen an den bisher be nutzten Tiefziehwerkzeugen) niedrige Temperatur aufweist, wobei vorzugsweise lediglich ein einziges Tiefziehwerkzeug vorgesehen ist und damit der Rohling in einem einzigen Tiefziehvorgang ge formt wird. Auch hierbei liegt der Vorteil wieder darin, daß keine wesentliche Veränderung des zuvor durch die entsprechende Strahlungsenergie-Zufuhr eingestellten Temperaturprofils er folgt.A deep-drawing plant is used in the manufacture of deep-drawn parts used stuff, which is a relative (measured at the previously be used deep drawing tools) has low temperature, whereby preferably only a single deep-drawing tool is provided is and thus the blank ge in a single deep-drawing process is formed. Again, the advantage is that no significant change from the previous one Radiant energy supply set temperature profile follows.
Claims (21)
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19736462A DE19736462C2 (en) | 1997-08-21 | 1997-08-21 | Method and device for thermoforming thermoplastics |
| DE29724025U DE29724025U1 (en) | 1997-08-21 | 1997-08-21 | Device for thermoforming thermoplastics |
| CA002301053A CA2301053A1 (en) | 1997-08-21 | 1998-08-19 | Method and device for hot-forming thermoplastics |
| CN98808333.7A CN1267253A (en) | 1997-08-21 | 1998-08-19 | Method and device for hot-forming thermoplastics |
| BR9811610-0A BR9811610A (en) | 1997-08-21 | 1998-08-19 | Method and apparatus for hot molding of thermoplastics |
| EP98947440A EP1005412A1 (en) | 1997-08-21 | 1998-08-19 | Method and device for hot-forming thermoplastics |
| PCT/EP1998/005266 WO1999010160A1 (en) | 1997-08-21 | 1998-08-19 | Method and device for hot-forming thermoplastics |
| AU94359/98A AU9435998A (en) | 1997-08-21 | 1998-08-19 | Method and device for hot-forming thermoplastics |
| JP2000507520A JP4562284B2 (en) | 1997-08-21 | 1998-08-19 | Method and apparatus for thermoforming thermoplastic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19736462A DE19736462C2 (en) | 1997-08-21 | 1997-08-21 | Method and device for thermoforming thermoplastics |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE19736462A1 true DE19736462A1 (en) | 1999-02-25 |
| DE19736462C2 DE19736462C2 (en) | 2003-06-18 |
Family
ID=7839769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19736462A Expired - Lifetime DE19736462C2 (en) | 1997-08-21 | 1997-08-21 | Method and device for thermoforming thermoplastics |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1005412A1 (en) |
| JP (1) | JP4562284B2 (en) |
| CN (1) | CN1267253A (en) |
| AU (1) | AU9435998A (en) |
| BR (1) | BR9811610A (en) |
| CA (1) | CA2301053A1 (en) |
| DE (1) | DE19736462C2 (en) |
| WO (1) | WO1999010160A1 (en) |
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| WO2002023590A1 (en) | 2000-09-18 | 2002-03-21 | Advanced Photonics Technologies Ag | Radiation source and device |
| DE10051904A1 (en) * | 2000-09-18 | 2002-04-04 | Advanced Photonics Tech Ag | Halogen lamp for infra-red radiation of wide materials, includes heat conducting contacts at ends to produce steep temperature gradient in glass envelope |
| DE10051905A1 (en) * | 2000-09-18 | 2002-04-04 | Advanced Photonics Tech Ag | Halogen lamp for infra-red radiation of wide materials, has ends of glass envelope bent towards reflector and containing denser filament |
| WO2002032652A1 (en) * | 2000-10-17 | 2002-04-25 | Advanced Photonics Technologies Ag | Stretch blow-moulding method and a heating section |
| WO2002033335A1 (en) | 2000-10-16 | 2002-04-25 | Advanced Photonics Technologies Ag | Manually controlled irradiation device and thermal treatment method |
| DE10121160A1 (en) * | 2001-04-30 | 2002-10-31 | Sig Corpoplast Gmbh & Co Kg | Method and device for tempering preforms |
| WO2004018114A3 (en) * | 2002-08-23 | 2004-04-22 | Du Pont | Process for curing powder coatings |
| DE10058950B4 (en) * | 2000-10-17 | 2006-04-06 | Advanced Photonics Technologies Ag | Heating section and stretch blow molding method |
| EP1798017A2 (en) | 2005-12-15 | 2007-06-20 | SIG Technology Ltd. | Process and apparatus for blow moulding containers |
| US8852492B2 (en) | 2011-08-22 | 2014-10-07 | Krones Ag | Heating device and heating method for blow molding machine as well as blow molding machine |
| US10464236B2 (en) | 2013-07-03 | 2019-11-05 | watttron GmbH | Device for heating preform bodies or flat or preformed semi-finished products from thermoplastic material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19949923B4 (en) * | 1999-10-16 | 2006-12-21 | Hoesch Metall + Kunststoffwerk Gmbh & Co | Deep-drawing method for producing a cup-shaped molding with undercuts in the shell wall |
| WO2004026956A1 (en) | 2002-09-17 | 2004-04-01 | Basell Poliolefine Italia S.P.A. | Polyolefin composition with improved abrasion resistance |
| DE10245004A1 (en) | 2002-09-26 | 2004-04-29 | Advanced Photonics Technologies Ag | Method and arrangement for the thermal treatment of a workpiece |
| JP4823902B2 (en) * | 2004-07-29 | 2011-11-24 | 三井化学株式会社 | Method for producing thermoplastic resin hollow molded body |
| DE102005000837B4 (en) | 2005-01-05 | 2022-03-31 | Advanced Photonics Technologies Ag | Thermal irradiation arrangement for heating an item to be irradiated |
| DE102007058324A1 (en) | 2007-12-04 | 2009-06-10 | Advanced Photonics Technologies Ag | Highly reflective lining element and irradiation arrangement |
| DE102009026259A1 (en) | 2009-07-28 | 2011-02-03 | Krones Ag | Device for warming pre-mold in stretch blow-molding device, has radiator emitting rays in wave-length range, which possesses maximum emission, where wave-length range and maximum emission differ from those of another radiator |
| EP2425959B1 (en) | 2010-09-06 | 2013-07-31 | Krones AG | Device and method for heating preforms |
| DE102017120862A1 (en) * | 2017-09-10 | 2019-03-14 | Khs Corpoplast Gmbh | Heating device for the temperature conditioning of preforms and method for operating such a heating device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3823670A1 (en) * | 1988-07-13 | 1990-10-25 | Nissei Asb Machine Co Ltd | Process and apparatus for heating preforms |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61137A (en) * | 1984-05-31 | 1986-01-06 | 株式会社クラレ | Orienting blow multilayer bottle and manufacture thereof |
| GB9024619D0 (en) * | 1990-11-13 | 1991-01-02 | Mckechnie Plastics Ltd | Thermoplastic hoses and tubes |
| FR2678542B1 (en) * | 1991-07-01 | 1993-10-29 | Sidel | PROCESS AND INSTALLATION FOR THE HEATING, BY INFRARED RADIATION, OF PLASTIC PREFORMS, PARTICULARLY PET, FOR THE MANUFACTURE OF CONTAINERS. |
| WO1994005483A1 (en) * | 1992-09-03 | 1994-03-17 | Leonhard Kurz Gmbh & Co. | Method and machine for laminating a decorative layer to the surface of a three-dimensional object |
| EP0640455A1 (en) * | 1993-08-27 | 1995-03-01 | Maschinenfabrik Georg Geiss | Heating for vacuum-forming machines |
| KR960705669A (en) * | 1993-10-27 | 1996-11-08 | 고트프리트 매너트 | METHOD OF FORMING MOLECULARLY ORIENTED CONTAINERS |
| JP2926301B2 (en) * | 1994-04-06 | 1999-07-28 | 住友重機械工業株式会社 | Thermoforming method and apparatus for thermoplastic resin sheet |
| FI100319B (en) * | 1995-04-12 | 1997-11-14 | Veikko Jehkinen | Deep drawing device for plastic products |
-
1997
- 1997-08-21 DE DE19736462A patent/DE19736462C2/en not_active Expired - Lifetime
-
1998
- 1998-08-19 BR BR9811610-0A patent/BR9811610A/en not_active IP Right Cessation
- 1998-08-19 AU AU94359/98A patent/AU9435998A/en not_active Abandoned
- 1998-08-19 CN CN98808333.7A patent/CN1267253A/en active Pending
- 1998-08-19 EP EP98947440A patent/EP1005412A1/en not_active Withdrawn
- 1998-08-19 WO PCT/EP1998/005266 patent/WO1999010160A1/en not_active Ceased
- 1998-08-19 JP JP2000507520A patent/JP4562284B2/en not_active Expired - Lifetime
- 1998-08-19 CA CA002301053A patent/CA2301053A1/en not_active Abandoned
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3823670A1 (en) * | 1988-07-13 | 1990-10-25 | Nissei Asb Machine Co Ltd | Process and apparatus for heating preforms |
Non-Patent Citations (3)
| Title |
|---|
| DE-Z.: Kautschuk + Gummi. Kunststoffe, 36.Jg., Nr.10/1983, S.899-901 * |
| DE-Z.: Kunststoffe 86/1996/8, S.1114-1118 * |
| DE-Z.: Kunststoffe-Plastics, Bd.31, 1984, H.8, S.20-22 * |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10051903B4 (en) * | 2000-09-18 | 2005-08-18 | Advanced Photonics Technologies Ag | radiation source |
| DE10051904A1 (en) * | 2000-09-18 | 2002-04-04 | Advanced Photonics Tech Ag | Halogen lamp for infra-red radiation of wide materials, includes heat conducting contacts at ends to produce steep temperature gradient in glass envelope |
| DE10051905A1 (en) * | 2000-09-18 | 2002-04-04 | Advanced Photonics Tech Ag | Halogen lamp for infra-red radiation of wide materials, has ends of glass envelope bent towards reflector and containing denser filament |
| US7820991B2 (en) | 2000-09-18 | 2010-10-26 | Adphos Innovative Technologies Gmbh | Radiation source and device |
| WO2002023590A1 (en) | 2000-09-18 | 2002-03-21 | Advanced Photonics Technologies Ag | Radiation source and device |
| DE10051905B4 (en) * | 2000-09-18 | 2006-07-06 | Advanced Photonics Technologies Ag | Halogen lamp for infra-red radiation of wide materials, has ends of glass envelope bent towards reflector and containing denser filament |
| DE10051904B4 (en) * | 2000-09-18 | 2006-01-05 | Advanced Photonics Technologies Ag | Halogen lamp for infra-red radiation of wide materials, includes heat conducting contacts at ends to produce steep temperature gradient in glass envelope |
| WO2002033335A1 (en) | 2000-10-16 | 2002-04-25 | Advanced Photonics Technologies Ag | Manually controlled irradiation device and thermal treatment method |
| DE10058950B4 (en) * | 2000-10-17 | 2006-04-06 | Advanced Photonics Technologies Ag | Heating section and stretch blow molding method |
| WO2002032652A1 (en) * | 2000-10-17 | 2002-04-25 | Advanced Photonics Technologies Ag | Stretch blow-moulding method and a heating section |
| DE10121160A1 (en) * | 2001-04-30 | 2002-10-31 | Sig Corpoplast Gmbh & Co Kg | Method and device for tempering preforms |
| US7491358B2 (en) | 2001-04-30 | 2009-02-17 | Sig Corpoplast Gmbh & Co. Kg. | Method and device for regulating the temperature of parisons |
| WO2004018114A3 (en) * | 2002-08-23 | 2004-04-22 | Du Pont | Process for curing powder coatings |
| EP1798017A2 (en) | 2005-12-15 | 2007-06-20 | SIG Technology Ltd. | Process and apparatus for blow moulding containers |
| EP1798017A3 (en) * | 2005-12-15 | 2007-08-15 | SIG Technology Ltd. | Process and apparatus for blow moulding containers |
| US8852492B2 (en) | 2011-08-22 | 2014-10-07 | Krones Ag | Heating device and heating method for blow molding machine as well as blow molding machine |
| US10464236B2 (en) | 2013-07-03 | 2019-11-05 | watttron GmbH | Device for heating preform bodies or flat or preformed semi-finished products from thermoplastic material |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1005412A1 (en) | 2000-06-07 |
| JP4562284B2 (en) | 2010-10-13 |
| BR9811610A (en) | 2000-09-05 |
| DE19736462C2 (en) | 2003-06-18 |
| CN1267253A (en) | 2000-09-20 |
| CA2301053A1 (en) | 1999-03-04 |
| WO1999010160A1 (en) | 1999-03-04 |
| AU9435998A (en) | 1999-03-16 |
| JP2001513465A (en) | 2001-09-04 |
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