DE102004025568A1 - Combined positive embossing and thermoforming of thermoplastic films involves heating film, clamping and forming onto positive tool while embossing with punch and die - Google Patents
Combined positive embossing and thermoforming of thermoplastic films involves heating film, clamping and forming onto positive tool while embossing with punch and die Download PDFInfo
- Publication number
- DE102004025568A1 DE102004025568A1 DE200410025568 DE102004025568A DE102004025568A1 DE 102004025568 A1 DE102004025568 A1 DE 102004025568A1 DE 200410025568 DE200410025568 DE 200410025568 DE 102004025568 A DE102004025568 A DE 102004025568A DE 102004025568 A1 DE102004025568 A1 DE 102004025568A1
- Authority
- DE
- Germany
- Prior art keywords
- embossing
- positive
- film
- die
- tool
- 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
-
- 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
- B29C51/04—Combined thermoforming and prestretching, e.g. biaxial stretching
- B29C51/06—Combined thermoforming and prestretching, e.g. biaxial stretching using pressure difference for prestretching
-
- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0053—Moulding articles characterised by the shape of the surface, e.g. ribs, high polish
-
- 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
- B29C51/08—Deep drawing or matched-mould forming, i.e. using mechanical means only
-
- 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
- B29C2791/00—Shaping characteristics in general
- B29C2791/004—Shaping under special conditions
- B29C2791/006—Using vacuum
-
- 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
- B29C51/10—Forming by pressure difference, e.g. vacuum
Abstract
Description
Die Erfindung betrifft eine Vorrichtung und ein Verfahren zum Positiv-Prägen einer Folie während eines Tiefziehprozesses.The The invention relates to an apparatus and method for positively embossing a Slide during a thermoforming process.
Aus
der
Wird ein Formteil mit Prägung gemäß den beiden hier erwähnten Dokumenten hergestellt, wird ein zweistufiger Fertigungsprozess mit jeweils einer ersten Vorrichtung oder Anlage zum Tiefziehen und einer zweiten Vorrichtung oder Anlage zum Prägen benötigt.Becomes a molded part with embossing according to the two mentioned here Documents produced, becomes a two-stage manufacturing process each with a first device or system for deep drawing and a second device or system for embossing needed.
Anschaffung und Unterhalt von zwei Anlagen ist jedoch nicht wirtschaftlich, deshalb ist es die Aufgabe der vorliegenden Erfindung, ein Verfahren und eine Vorrichtung zum Positiv-Prägen einer Folie während eines Tiefziehprozesses bereitzustellen. Verfahren und Vorrichtung sollen zudem kostengünstig und in der Fertigung einfach einsetzbar sein und Positiv-Prägungen von hoher Qualität ermöglichen.purchase and maintenance of two plants is not economical, Therefore, it is the object of the present invention, a method and a device for positively embossing a Slide during to provide a deep drawing process. Method and device should also cost and be easy to use in manufacturing and positive imprints of high quality enable.
Erfindungsgemäß wird diese Aufgabe gelöst durch ein Tiefziehverfahren unter Verwendung eines entsprechend modifizierten Tiefziehwerkzeuges. Zuerst wird eine thermoplastische Folie, wie etwa eine thermische Polyolefin-Folie, auf ca. 190 °C in einer Heizstation erwärmt. Nach Erreichen der vorgegebenen Temperatur wird die erwärmte Folie automatisch in eine Verformstation transportiert, wo sie über ein Positiv-Tiefwerkzeug, welches von unten über den Vakuumkasten kommt, vorgeblasen und gestreckt wird. Gleichzeitig fährt von oben die Niederhaltereinrichtung auf das Tiefziehwerkzeug zu, wo die Folie in der richtigen Position platziert wird. Mit dem anschließenden Vakuum wird die Folie konturmäßig an das Tiefziehwerkzeug angelegt.According to the invention this Task solved by a deep-drawing process using a correspondingly modified Deep-drawing tool. First, a thermoplastic film, such as such as a thermal polyolefin film, to about 190 ° C in a heating station heated. After reaching the predetermined temperature, the heated film automatically transported to a forming station, where they have a positive deep tool, which from the bottom over The vacuum box comes, is pre-blown and stretched. simultaneously leaves from above the hold-down device on the thermoforming tool, where the film is placed in the correct position. With the subsequent vacuum The film is contoured to the thermoforming tool created.
Noch während die Folie heiß ist, wird parallel ein Positiv-Bild geprägt durch Aufeinanderzubewegen von ca. 200 °C heißem positivem Prägestempel und ca. 200 °C heißer negativer Matrize. Der Abstand zwischen dem Prägestempel und der Matrize wird durch Abstandhalter kontrolliert, wodurch auf einfach umzusetzende Weise ein präziser Abstand zwischen Prägestempel und Matrize eingehalten werden kann, was eine Vorraussetzung für das Erzielen eines einwandfreien Prägeergebnisses ist.Yet while the film is hot, becomes a positive image in parallel embossed by moving together about 200 ° C hot positive die and about 200 ° C hot negative template. The distance between the die and the die is through Controlled spacers, making it easy to implement way a precise one Distance between dies and template can be adhered to, which is a prerequisite for achieving a perfect stamping result is.
Die Prägung wird unter Ausnutzung der Eigenwärme der Folie durchgeführt, so dass die Folie während des Prägevorgangs noch weich ist. Es ist außerdem von Vorteil, den Prägestempel und die Matrize zu heizen, um eine einwandfreie Prägung ohne Verzerrung und/oder Beschädigung der Folie zu erreichen. Danach lässt man die Folie ankühlen, fährt den Prägestempel und die Matrize und entnimmt die geformte und mit der Positiv-Prägung versehene Folie.The embossing is taking advantage of its own heat the film is done, so that the film while of the embossing process is still soft. It is also advantageous, the die and to heat the die to a flawless embossing without distortion and / or damage to reach the film. After that lets to cool the film, drives the dies and the template and removes the molded and positively embossed Foil.
Neben dem Wegfall eines zusätzlichen Fertigungsschrittes und den damit verbundenen, niedrigeren Fertigungs-, Investitions- und Wartungskosten, ist es ein weiterer Vorteil der vorliegenden Erfindung, dass kein Vorwärmen der zu prägenden Folie nötig ist, da der Prägevorgang unter Ausnutzung der aus dem Tiefziehprozess stammenden Eigenwärme der Folie durchgeführt wird. Dadurch werden nicht nur die Kosten gesenkt, sondern auch die Fertigungszeit reduziert.Next the elimination of an additional Manufacturing step and associated lower manufacturing, Investment and investment Maintenance costs, it is another advantage of the present invention that no preheating the one to be shaped Foil is necessary, because of the stamping process taking advantage of the inherent heat of the film from the thermoforming process carried out becomes. This not only reduces costs, but also reduces costs reduces the production time.
Die Prägevorrichtung kann gemäß der vorliegenden Erfindung so ausgelegt werden, dass durch Austauschen und/oder Modifizieren von Prägestempel und Matrize die Prägevorrichtung für andere Prägungen wiederverwendet werden kann.The embosser can according to the present Invention are designed so that by replacing and / or modify of stamping and die the embossing device for others coins can be reused.
Das erfindungsgemäße Verfahren wird im Folgenden anhand von Ausführungsbeispielen entsprechend der Zeichnung beschrieben.The inventive method is hereinafter according to embodiments described the drawing.
Die
Figur zeigt eine Tiefziehvorrichtung mit der erfindungsgemäßen Prägevorrichtung.
Das Tiefziehwerkzeug weist eine Niederhaltereinrichtung
Die
Matrize
An
den Außenseiten
der Niederhalterplatte
Das
eigentliche Tiefziehwerkzeug
Der
Prägestempel
200 °C auf.200 ° C on.
Das
Positiv-Tiefziehwerkzeug
Zum
Aufbringen einer Positiv-Prägung
auf eine Folie während
eines Tiefziehprozesses wird gemäß der vorliegenden
Erfindung folgendermaßen vorgegangen:
Eine
thermoplastischen Folie wird auf ca. 190 °C in einer Heizstation erwärmt. Ein
geeigneter Thermoplast gemäß der vorliegenden
Erfindung ist beispielsweise thermisches Polyolefin. Andere thermoplastische
Kunststoffe, also Kunststoffe, welche sich unter Wärme verformen
lassen, ohne sich zu zersetzen, und welche diese Form nach dem Abkühlen beibehalten,
sind gemäß der vorliegenden
Erfindung ebenfalls denkbar und möglich.In order to apply a positive embossing to a film during a deep-drawing process, the following procedure is adopted according to the present invention:
A thermoplastic film is heated to about 190 ° C in a heating station. A suitable thermoplastic according to the present invention is, for example, thermal polyolefin. Other thermoplastics, ie plastics, which can be deformed under heat without decomposing, and which retain this shape after cooling, are also conceivable and possible according to the present invention.
In
einem nächsten
Schritt wird die erwärmte Folie
in eine Verformstation transportiert, welche gemäß der vorliegenden Erfindung
ein Positiv-Tiefziehwerkzeug
Die
Prägestempelaufnahme
Nach
dem Transportieren der erwärmte
Folie in die Verformstation wird die erwärmte Folie über dem Positiv-Tiefziehwerkzeug
Anschließend wird
die Folie abgekühlt
und danach Prägestempel
Während der
Prägung
ist zu beachten, dass der Abstand zwischen Prägestempel
- 11
- beheizter Prägestempel mit positivem Schriftzugheated dies with positive lettering
- 22
- beheizter Matrize mit negativem Schriftzugheated Die with negative lettering
- 33
- PrägestempelaufnahmeDie Recording
- 44
- Matrizenaufnahmedie holder
- 55
- Positiv-TiefziehwerkzeugPositive thermoforming mold
- 66
- Unterwerkzeuglower tool
- 77
- Dichtplattesealing plate
- 88th
- NiederhaltereinrichtungHold-down device
- 99
- NiederhalterplatteDown plate
- 1010
- Abstandhalterspacer
- 1111
- Aussparungrecess
- AA
- Bewegungsrichtungen des Prägestempelsdirections of movement of the stamp
- BB
- Bewegungsrichtungen der Matrizedirections of movement the matrix
- FF
- Oberfläche des UnterwerkzeugsSurface of the lower tool
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410025568 DE102004025568B4 (en) | 2004-05-25 | 2004-05-25 | Apparatus and method for positively embossing a film during a thermoforming process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410025568 DE102004025568B4 (en) | 2004-05-25 | 2004-05-25 | Apparatus and method for positively embossing a film during a thermoforming process |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102004025568A1 true DE102004025568A1 (en) | 2006-02-16 |
DE102004025568B4 DE102004025568B4 (en) | 2006-10-05 |
Family
ID=35668220
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410025568 Expired - Fee Related DE102004025568B4 (en) | 2004-05-25 | 2004-05-25 | Apparatus and method for positively embossing a film during a thermoforming process |
Country Status (1)
Country | Link |
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DE (1) | DE102004025568B4 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011102182A1 (en) * | 2011-05-21 | 2012-11-22 | Bayerische Motoren Werke Aktiengesellschaft | Device for producing multi-colored plastic parts, has mold half with die in which film is accommodated, while another mold half is provided with another die in which another film is accommodated, where mold halves are vacuum forming tools |
WO2013017185A1 (en) | 2011-08-02 | 2013-02-07 | Heraeus Sensor Technology Gmbh | Microstructured hot-stamping die |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2026427A1 (en) * | 1970-05-30 | 1971-12-16 | Daimler Benz Ag | Decorative embossing process - for deep drawn sheet - material |
US4383954A (en) * | 1979-03-22 | 1983-05-17 | Genpak Corporation | Forming and delivering stackable articles |
DE3700960A1 (en) * | 1987-01-15 | 1988-07-28 | Benecke Gmbh J | METHOD FOR THE PRODUCTION OF ORNAMENTAL SEAMS ON FILMS MOLDED IN THE DRAWING PROCESS, AND DEVICE FOR IMPLEMENTING THE METHOD |
DE10234198A1 (en) * | 2001-07-27 | 2003-03-13 | Toyoda Gosei Kk | Method for manufacturing a vehicle interior object |
-
2004
- 2004-05-25 DE DE200410025568 patent/DE102004025568B4/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2026427A1 (en) * | 1970-05-30 | 1971-12-16 | Daimler Benz Ag | Decorative embossing process - for deep drawn sheet - material |
US4383954A (en) * | 1979-03-22 | 1983-05-17 | Genpak Corporation | Forming and delivering stackable articles |
DE3700960A1 (en) * | 1987-01-15 | 1988-07-28 | Benecke Gmbh J | METHOD FOR THE PRODUCTION OF ORNAMENTAL SEAMS ON FILMS MOLDED IN THE DRAWING PROCESS, AND DEVICE FOR IMPLEMENTING THE METHOD |
DE10234198A1 (en) * | 2001-07-27 | 2003-03-13 | Toyoda Gosei Kk | Method for manufacturing a vehicle interior object |
Non-Patent Citations (2)
Title |
---|
ILLIG,Adolf:Thermoformen in der Praxis, Hanser, 1977,S.68-72, ISBN 3-446-19153-4 * |
ILLIG,Adolf:Thermoformen in der Praxis, Hanser, 1977,S.68-72; ISBN 3-446-19153-4 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011102182A1 (en) * | 2011-05-21 | 2012-11-22 | Bayerische Motoren Werke Aktiengesellschaft | Device for producing multi-colored plastic parts, has mold half with die in which film is accommodated, while another mold half is provided with another die in which another film is accommodated, where mold halves are vacuum forming tools |
DE102011102182B4 (en) | 2011-05-21 | 2022-03-03 | Bayerische Motoren Werke Aktiengesellschaft | Device and method for producing multicolored plastic components |
WO2013017185A1 (en) | 2011-08-02 | 2013-02-07 | Heraeus Sensor Technology Gmbh | Microstructured hot-stamping die |
DE102011052365A1 (en) | 2011-08-02 | 2013-02-07 | Heraeus Sensor Technology Gmbh | Microstructured hot stamp |
US9155129B2 (en) | 2011-08-02 | 2015-10-06 | Heraeus Sensor Technology Gmbh | Microstructured hot stamping die |
DE102011052365B4 (en) | 2011-08-02 | 2017-02-09 | Heraeus Sensor Technology Gmbh | Microstructured hot stamp |
Also Published As
Publication number | Publication date |
---|---|
DE102004025568B4 (en) | 2006-10-05 |
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