DE20220417U1 - Porous thermoforming tool for molding grain-embossed films used in production of grained products has a shell structure with grained face penetrated by vacuum passages - Google Patents
Porous thermoforming tool for molding grain-embossed films used in production of grained products has a shell structure with grained face penetrated by vacuum passagesInfo
- Publication number
- DE20220417U1 DE20220417U1 DE20220417U DE20220417U DE20220417U1 DE 20220417 U1 DE20220417 U1 DE 20220417U1 DE 20220417 U DE20220417 U DE 20220417U DE 20220417 U DE20220417 U DE 20220417U DE 20220417 U1 DE20220417 U1 DE 20220417U1
- Authority
- DE
- Germany
- Prior art keywords
- tool
- molding tool
- grained
- film
- carrier part
- 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.)
- Expired - Lifetime
Links
- 238000000465 moulding Methods 0.000 title claims abstract description 28
- 238000003856 thermoforming Methods 0.000 title abstract description 3
- 238000004519 manufacturing process Methods 0.000 title description 2
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 238000004049 embossing Methods 0.000 claims description 12
- 239000011888 foil Substances 0.000 claims description 12
- 238000010030 laminating Methods 0.000 claims description 7
- 239000008187 granular material Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000005496 tempering Methods 0.000 claims description 6
- 229910001315 Tool steel Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000003475 lamination Methods 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- 239000004411 aluminium Substances 0.000 claims 1
- 239000000919 ceramic Substances 0.000 claims 1
- 238000001746 injection moulding Methods 0.000 claims 1
- 230000003628 erosive effect Effects 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 239000010985 leather Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- 238000009713 electroplating Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/06—Embossing
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
- B29C33/424—Moulding surfaces provided with means for marking or patterning
-
- 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
- B29C51/16—Lining or labelling
-
- 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
- B29C51/30—Moulds
-
- 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
- B29C51/30—Moulds
- B29C51/36—Moulds specially adapted for vacuum forming, Manufacture 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
- B29C35/08—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
- B29C2035/0811—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 induction
-
- 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
- B29C2791/001—Shaping in several steps
-
- 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
- B29C2791/00—Shaping characteristics in general
- B29C2791/004—Shaping under special conditions
- B29C2791/007—Using fluid under pressure
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
- B29C33/04—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
- B29C33/06—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using radiation, e.g. electro-magnetic waves, induction heating
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3814—Porous moulds
-
- 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
-
- 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
-
- 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
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/22—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using layers or sheathings having a shape adapted to the shape of the article
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
FRIMO-HUBER Systemtechnik GmbH & Co 14. April 2003FRIMO-HUBER Systemtechnik GmbH & Co April 14, 2003
Liegnitzer Str. 5 M 5987 G/XV/hoLiegnitzer Str. 5 M 5987 G/XV/ho
D-83395 FreilassingD-83395 Freilassing
FormwerkzeugForming tool
Die Erfindung betrifft ein luftdurchlässiges Formwerkzeug zur Folienprägung im Negativ-Prägetiefziehverfahren zur Herstellung genarbter Bauteile.The invention relates to an air-permeable molding tool for foil embossing in the negative embossing deep-drawing process for producing grained components.
Zur Folienprägung im Negativ-Prägetiefziehverfahren wird derzeit insbesondere ein mikroporöses Galvanowerkzeug verwendet. Kernstück dieses Werkzeugs ist eine Matrize mit einer mikroporösen Galvanoschale aus Nickel. Um ein solches Formwerkzeug zu erzeugen, muß für ein Galvanisierungsbad zunächst ein Badmodell angefertigt werden. Dieses Badmodell erhält man über Negativ-/Positiv-Abformungen von einem sogenannten Urmodell. Von diesem z.B. leder- oder folienbezogenen Schwundmaßmodell wird ein erstes Silikonnegativmodell hergestellt. In diesem Silikonnegativmodell wird dann das sogenannte Muttermodell hergestellt. Das Muttermodell ist Ausgangspunkt und Referenz für alle weiteren Arbeiten. Da es alle Fehler des Schwundmaßmodells enthält, muß es in einigen Bereichen korrigiert werden, insbesondere müssen Leder- oder Folienstöße nachgraviert werden. Dieses Muttermodell besteht üblicherweise aus Epoxidharz. Von diesem Muttermodell wird dann ein zweites Silikonnegativmodell hergestellt. In diesem werden dann alle Badmodelle aus glasfaserverstärktem Epoxidharz hergestellt. Dieses erhält für die Gewährleistung einer elektrischen Leitfähigkeit z.B. eine Spiegelversilberung auf der Oberfläche. Auf diese wird anschließend galvanisch eine mikroporöse Nickelschicht abgeschieden. Diese mikroporöse Schicht wird dann mit einem luftdurchlässigen sogenannten Hinterbau kombiniert und das vollständige Formwerkzeug der Tief ziehformvorrichtung gefertigt.A microporous electroplating tool is currently used in particular for foil embossing in the negative embossing deep-drawing process. The core of this tool is a matrix with a microporous electroplating shell made of nickel. In order to produce such a mold, a bath model must first be made for a galvanization bath. This bath model is obtained by taking negative/positive impressions from a so-called master model. A first silicone negative model is made from this shrinkage model, e.g. made of leather or foil. The so-called master model is then made in this silicone negative model. The master model is the starting point and reference for all further work. Since it contains all the errors of the shrinkage model, it must be corrected in some areas, in particular leather or foil joints must be re-engraved. This master model is usually made of epoxy resin. A second silicone negative model is then made from this master model. All bath models are then made from glass fiber reinforced epoxy resin in this. To ensure electrical conductivity, the surface is given a mirror silver plating, for example. A microporous nickel layer is then electroplated onto this. This microporous layer is then combined with an air-permeable rear structure and the complete molding tool for the deep-drawing molding device is manufactured.
Mittels Vakuum wird beim Formen die erhitzte Folie gegen das temperierte Formwerkzeug gezogen, so daß sie die Narbung der mikroporösen Nickelschicht annimmt. Anschließend erfolgt die Kaschierung der Folie mit einem Trägerteil, z.B. einem Innenverkleidungsteil eines Kraftfahrzeuges. Die Herstellung derartiger Formwerkzeuge ist sehr aufwendig und teuer. Darüber hinaus sind die Formwerkzeuge sehr stoß- und kratzempfindlich. Weiters ist ein Reinigen der mikroporösen verwundenen Vakuumlöcher sehr schwierig.During the forming process, the heated foil is pulled against the tempered mold using a vacuum so that it takes on the grain of the microporous nickel layer. The foil is then laminated to a carrier part, e.g. an interior panel of a motor vehicle. The production of such molds is very complex and expensive. In addition, the molds are very sensitive to impact and scratches. Furthermore, cleaning the microporous twisted vacuum holes is very difficult.
Aufgabe der Erfindung ist es, ein Formwerkzeug für das Negativ-Prägetiefziehen von Folien zu schaffen, das einfach, schneller und kostengünstig herstellbar, unempfindlich und zudem leichter zu reinigen ist.The object of the invention is to create a forming tool for the negative embossing deep drawing of films, which can be produced simply, quickly and inexpensively, is robust and also easier to clean.
Die Aufgabe wird mit einem Formwerkzeug mit den Merkmalen des Anspruch 1 gelöst.The object is achieved with a molding tool having the features of claim 1.
Vorteilhafte Weiterbildungen sind in den Unteransprüchen gekennzeichnet .Advantageous further developments are indicated in the subclaims.
Das erfindungsgemäße Formwerkzeug ist aus Stahl ausgebildet und besitzt eine strukturierte bzw. genarbte folienseitige Oberfläche, welche durch Ätzung hergestellt ist. Um die Folie an das Formwerkzeug ansaugen zu können (tiefziehen), ist das Formwerkzeug mit einer Vielzahl von sehr feinen Bohrungen durchsetzt, die von der folienseitigen Oberfläche durch die Formwerkzeugwandung hindurch zur rückwärtigen Oberfläche durchgehen und in den Formwerkzeughinterbau münden.The mold according to the invention is made of steel and has a structured or grained surface on the foil side, which is produced by etching. In order to be able to suck the foil onto the mold (deep drawing), the mold is penetrated with a large number of very fine holes that run from the foil-side surface through the mold wall to the rear surface and open into the mold rear structure.
Vorzugsweise weist das erfindungsgemäße Formwerkzeug eine Temperiereinrichtung und gegebenenfalls weitere Mittel auf, die eine sehr gleichmäßige Temperierung des gesamten Formwerkzeugs gewährleistet, so daß ein Verzug des Werkzeugs und/oder der Folie ausgeschlossen ist. Das Formwerkzeug hat insbesondere eine Schalenform, die einerseits die folienseitige Oberfläche mit NarbungPreferably, the mold according to the invention has a tempering device and optionally further means that ensure a very uniform tempering of the entire mold, so that distortion of the tool and/or the film is excluded. The mold has in particular a shell shape, which on the one hand provides the film-side surface with grain
• ··
• ··
und rückseitig eine Temperierungseinrichtung sowie gegebenenfalls Versteifungsrippen aufweist.and has a temperature control device and, if necessary, stiffening ribs on the rear.
Erfindungsgemäß wird die Aufgabe ferner durch ein genarbtes Bauteil gelöst, das durch Aufkaschieren einer Folie auf ein Trägerteil unter Verwendung des erfindungsgemäßen Formwerkzeugs hergestellt ist. Das Bauteil ist besonders hochwertig, wenn zunächst die Folie erhitzt und mittels Vakuum an ein die Narbung tragendes Prägewerkzeug gesaugt wird, wobei die Narbung auf die Folie übertragen wird und anschließend die genarbte Folie dem Trägerteil zugeführt und auf das Trägerteil übergeben wird, wonach ein übliches Kaschieren durchgeführt wird. Ganz besonders hochwertig ist das Bauteil, wenn die Folie zusätzlich durch Druckluft unterstützt gegen das Prägezeigwerkzeug geführt wird. Ein sehr hochwertiges Bauteil wird dadurch erreicht, dass die Folie mittels Vakuum auf das Trägerteil übergeben wird. Bevorzugt wird ein luftdurchlässiges Trägerteil verwendet.According to the invention, the object is further achieved by a grained component which is produced by laminating a film onto a carrier part using the molding tool according to the invention. The component is of particularly high quality if the film is first heated and sucked onto an embossing tool carrying the grain using a vacuum, the grain being transferred to the film and then the grained film being fed to the carrier part and transferred to the carrier part, after which a conventional lamination is carried out. The component is of particularly high quality if the film is additionally guided against the embossing tool with the aid of compressed air. A very high quality component is achieved by transferring the film onto the carrier part using a vacuum. An air-permeable carrier part is preferably used.
Die Erfindung wird anhand einer Zeichnung im folgenden beispielhaft näher erläutert, derenThe invention is explained in more detail below by means of a drawing, the
einzige Figur einen Querschnitt durch ein erfindungsgemäßes Tiefzieh-Formwerkzeug zeigt. The single figure shows a cross-section through a deep-drawing mold according to the invention.
Das erfindungsgemäße Formwerkzeug 1 ist Teil z.B. einer Tiefzieh- Thermof ormvorrichtung 2 aufweisend das Formwerkzeug 1 als Oberwerkzeug und ein Unterwerkzeug 3, die jeweils in Doppelpfeilrichtung "D" verfahrbar sind.The molding tool 1 according to the invention is part of, for example, a deep-drawing thermoforming device 2 comprising the molding tool 1 as an upper tool and a lower tool 3, which can each be moved in the double arrow direction "D".
Das Formwerkzeug 1 ist aus Stahl, insbesondere aus Werkzeugstahl, z.B. mit der Endnummer .2311; .273 8, und schalenförmig ausgebildet mit z.B. Formwerkzeugseitenwandungen 4 und einem Werkzeugschalenboden 5, der unregelmäßig oder regelmäßig konturiert ist. In der Figur ist beispielsweise eine wellige Kontur dargestellt mit Wellentälern 5a und Wellenkämmen 5b. Die Kontur entspricht der Kontur eines Trägerteils z.B. eines Innenausklei-The mold 1 is made of steel, in particular tool steel, e.g. with the ending number .2311; .273 8, and is shell-shaped with e.g. mold side walls 4 and a tool shell base 5, which is irregularly or regularly contoured. In the figure, for example, a wavy contour is shown with wave troughs 5a and wave crests 5b. The contour corresponds to the contour of a carrier part, e.g. an interior lining.
dungsteils 11 eines Kraftfahrzeuges. Die Werkzeugschale 5 hat z.B. eine Dicke von etwa 2 bis 10 mm. In dem durch die Formwerkzeugseitenwandungen 4 und den Schalenboden 5 begrenzten Raum 6 sind zweckmäßigerweise Versteifungsrippen 7 vorgesehen, welche sich von einer kastenseitigen Rückfläche 8 der Formwandung 5 weg erstrecken.ing part 11 of a motor vehicle. The tool shell 5 has, for example, a thickness of approximately 2 to 10 mm. In the space 6 delimited by the mold side walls 4 and the shell base 5, stiffening ribs 7 are expediently provided, which extend away from a box-side rear surface 8 of the mold wall 5.
Der Rückfläche 8 der Formwandung 5 gegenüberliegend weist die Formwandung 5 eine Formungsfläche 9 auf, die mit einer Narbung (nicht erkennbar) ausgebildet ist. Die Narbung ist z.B. mittels Ätzung hergestellt. Die Narbung entspricht z.B. einer Ledernarbung oder technischen Narbung, z.B. Prismapositiv-Narbungen, Baseballnarbungen oder dergleichen, und ist derart gestaltet, daß sie auf eine zu kaschierende Folie übertragen werden kann.Opposite the rear surface 8 of the mold wall 5, the mold wall 5 has a molding surface 9 which is formed with a grain (not visible). The grain is produced, for example, by means of etching. The grain corresponds, for example, to a leather grain or technical grain, e.g. prism positive grain, baseball grain or the like, and is designed in such a way that it can be transferred to a film to be laminated.
Die Folie wird grundsätzlich unter Einfluß von Wärme auf das Trägerteil aufkaschiert. Insbesondere in diesem Zusammenhang ist vorgesehen, daß das Formwerkzeug 1 mit einer Temperiereinrichtung ausgerüstet ist. Dazu sind zweckmäßigerweise an der Rückseite 8 insbesondere gleichmäßig über dem Boden 5 verteilt, Beheizungseinrichtungen 12 vorgesehen. Diese Beheizungseinrichtungen 12 können beispielsweise Rohrleitungen sein, die ein Heizmedium führen.The film is generally laminated onto the carrier part under the influence of heat. In particular in this context, it is provided that the mold 1 is equipped with a temperature control device. For this purpose, heating devices 12 are expediently provided on the rear side 8, in particular evenly distributed over the base 5. These heating devices 12 can be, for example, pipes that carry a heating medium.
Die Temperiereinrichtung kann auch lediglich dazu dienen, einen Verzug des Formwerkzeugs 1 aufgrund unterschiedlicher Temperaturen oder Wärmeabflußraten im Formwerkzeug zu vermeiden. Zudem können im Hohlraum 6 wärmespeichernde und/oder wärmedämmende Mittel, z.B. Granulate 13 ganz oder teilweise ausgefüllt sein. Insbesondere kann ein Aluminiumgranulat verwendet werden.The tempering device can also serve only to prevent distortion of the mold 1 due to different temperatures or heat flow rates in the mold. In addition, the cavity 6 can be completely or partially filled with heat-storing and/or heat-insulating agents, e.g. granules 13. In particular, aluminum granules can be used.
In die Formwandung 5 sind von der Fläche 9 zur Fläche 8 durchgehende Löcher 13 eingebracht. Die Löcher 13 haben z.B. einen Durchmesser von 0,1 bis 0,3 mm. Sie sind vorzugsweise mit einem Laser eingebracht. Um das Einbringen zu erleichtern, können die Löcher 13 zum Hohlraum 6 hin mit Einsenkungen 15 münden, die dieThrough holes 13 are made in the mold wall 5 from the surface 9 to the surface 8. The holes 13 have a diameter of 0.1 to 0.3 mm, for example. They are preferably made with a laser. To facilitate the introduction, the holes 13 can open into the cavity 6 with depressions 15, which
Materialdicke in diesem Bereich zur Verringerung des Laserbohraufwandes reduzieren.Reduce material thickness in this area to reduce laser drilling effort.
Das Unterwerkzeug 3 wird von einer an sich bekannten Spannrahmeneinrichtung umgeben, die einen Oberspannrahmen 2 0a und einen auf dem Oberspannrahmen sitzenden Unterspannrahmen 20a umfasst. Zwischen den Spannrahmen 20a, 20 wird die Folie 23 im Folienklemmniveau 20b eingeklemmt. Dafür sind die Spannrahmen 20a, 20 auseinander- und wieder zusammenfahrbar ausgebildet.The lower tool 3 is surrounded by a clamping frame device known per se, which comprises an upper clamping frame 20a and a lower clamping frame 20a sitting on the upper clamping frame. The film 23 is clamped between the clamping frames 20a, 20 at the film clamping level 20b. For this purpose, the clamping frames 20a, 20 are designed to be movable apart and together again.
Das Unterwerkzeug 3 ist in der Spannrahmeneinrichtung in Doppelpfeilrichtung "D" und zweckmäßigerweise auch aus der Spannrahmeneinrichtung heraus verfahrbar. Die Spannrahmeneinrichtung ist zweckmäßigerweise separat, z.B. rechtwinklig zur Bewegungsrichtung gemäß Doppelpfeil "D" des Unterwerkzeugs 3 seitlich verfahrbar angeordnet, so daß eine Folie 23 außerhalb des Werkzeugs einspannbar ist und ggf. auch beheizt werden kann.The lower tool 3 can be moved in the clamping frame device in the direction of the double arrow "D" and expediently also out of the clamping frame device. The clamping frame device is expediently arranged separately, e.g. at right angles to the direction of movement according to the double arrow "D" of the lower tool 3, so that a film 23 can be clamped outside the tool and can also be heated if necessary.
Zum Kaschieren werden z.B. die Werkzeugteile 1 und 3 auseinandergefahren, eine Kaschierfolie 23 zwischen den Ober- und Unterspannrahmen 20a, 2 0 geklemmt und die Folie außerhalb oder auch in der Formstation bzw. in der Werkzeugstation erhitzt.For laminating, for example, the tool parts 1 and 3 are moved apart, a laminating film 23 is clamped between the upper and lower clamping frames 20a, 20 and the film is heated outside or in the forming station or in the tool station.
Die erhitzte Folie 23 wird zuerst mittels eines über das Formwerkzeug 1 erzeugten Vakuums, zweckmäßigerweise auch durch von der Unterseite wirkende Druckluft unterstützt, in das Prägewerkzeug 1 (Matrize) eingesaugt und die Narbung auf die Folie übertragen, wobei die Folie vorher aus der Spannrahmeneinrichtung entlassen wird.The heated film 23 is first sucked into the embossing tool 1 (die) by means of a vacuum generated via the forming tool 1, expediently also supported by compressed air acting from the underside, and the grain is transferred to the film, the film being released from the clamping frame device beforehand.
Erst im nächsten Schritt wird das Trägerteil 11 dem Unterwerkzeug 3 zugeführt und dann die geprägte Folie wiederum mittels Vakuum auf das Trägerteil gebracht. Zu diesem Zweck ist das Unterwerkzeug 3 in an sich bekannter Weise vakuumfähig ausgebildet (nicht dargestellt) und zweckmäßigerweise das Trägerteil 11 auch luftdurchlässig.Only in the next step is the carrier part 11 fed to the lower tool 3 and then the embossed film is again applied to the carrier part by means of a vacuum. For this purpose, the lower tool 3 is designed to be vacuum-capable in a manner known per se (not shown) and the carrier part 11 is also expediently permeable to air.
Die Folie 23 kann eine übliche Kaschierfolie sein, beispielsweise aus PVC, TPO oder dergleichen. Um Luft durch die Löcher 14 zu saugen, verfügt das obere Formwerkzeug 1 über eine entsprechende Einrichtung, wobei die Temperierungseinrichtung und ggf. die wärmedämmenden und/oder wärmespeichernden Granulate das Absaugen der Luft nicht behindern.The film 23 can be a conventional laminating film, for example made of PVC, TPO or the like. In order to suck air through the holes 14, the upper mold 1 has a corresponding device, whereby the temperature control device and possibly the heat-insulating and/or heat-storing granules do not hinder the suction of the air.
Claims (18)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20220417U DE20220417U1 (en) | 2002-07-04 | 2002-07-04 | Porous thermoforming tool for molding grain-embossed films used in production of grained products has a shell structure with grained face penetrated by vacuum passages |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20220417U DE20220417U1 (en) | 2002-07-04 | 2002-07-04 | Porous thermoforming tool for molding grain-embossed films used in production of grained products has a shell structure with grained face penetrated by vacuum passages |
DE10230109A DE10230109A1 (en) | 2002-07-04 | 2002-07-04 | mold |
Publications (1)
Publication Number | Publication Date |
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DE20220417U1 true DE20220417U1 (en) | 2003-07-17 |
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DE20220417U Expired - Lifetime DE20220417U1 (en) | 2002-07-04 | 2002-07-04 | Porous thermoforming tool for molding grain-embossed films used in production of grained products has a shell structure with grained face penetrated by vacuum passages |
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DE (1) | DE20220417U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008022592A1 (en) * | 2008-05-07 | 2009-11-12 | Wagu Gummitechnik Gmbh | Insulating sleeve for covering pipe or tube, has longitudinal slot with front surfaces including alternative projection and recesses, where projection of one of front surfaces form-fit lies in other front surface corresponding to recesses |
-
2002
- 2002-07-04 DE DE20220417U patent/DE20220417U1/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008022592A1 (en) * | 2008-05-07 | 2009-11-12 | Wagu Gummitechnik Gmbh | Insulating sleeve for covering pipe or tube, has longitudinal slot with front surfaces including alternative projection and recesses, where projection of one of front surfaces form-fit lies in other front surface corresponding to recesses |
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