WO2006053522A1 - Procédé pour réaliser des modèles en matière plastique - Google Patents

Procédé pour réaliser des modèles en matière plastique Download PDF

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Publication number
WO2006053522A1
WO2006053522A1 PCT/DE2005/002007 DE2005002007W WO2006053522A1 WO 2006053522 A1 WO2006053522 A1 WO 2006053522A1 DE 2005002007 W DE2005002007 W DE 2005002007W WO 2006053522 A1 WO2006053522 A1 WO 2006053522A1
Authority
WO
WIPO (PCT)
Prior art keywords
model
models
mold
casting
base frame
Prior art date
Application number
PCT/DE2005/002007
Other languages
German (de)
English (en)
Inventor
Heinz Horbanski
Hans-Heinrich Bigge
Jörg HÖRZ
Original Assignee
Rampf Services Gmbh & Co. Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rampf Services Gmbh & Co. Kg filed Critical Rampf Services Gmbh & Co. Kg
Publication of WO2006053522A1 publication Critical patent/WO2006053522A1/fr

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
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C39/026—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles characterised by the shape of the surface
    • 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
    • B29C33/40—Plastics, e.g. foam or rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/40—Test specimens ; Models, e.g. model cars ; Probes

Definitions

  • the invention is based on a method for producing models of plastic, for example polyurethane, epoxy resins or comparable materials by casting, which are used for example as a teaching, master model or data control model in mold making, in the vehicle industry or other industries.
  • Another method is to build the model layer by layer of individual plates of different dimensions.
  • the plates are glued together, wherein the coefficient of thermal expansion of the adhesive also differs from that of the polyurethane plates and therefore, of course, to a certain extent with distortion symptoms is to be expected.
  • the process requires a complex construction. Although a skilful selection and combination of the individual plates makes it possible to approximate the model blank to the finished contour, there still remains a not inconsiderable mechanical processing effort in order to give the model blank the final outer contour.
  • the mechanically finished model must be sealed or painted so that the adhesive joints are not in the finished part or in the tool. Last but not least, a model made in this way has a relatively high weight.
  • the method according to the invention with the features of claim 1 has the advantages that it allows the production of a contour near model including its at least one stabilizing element, including its substructure, from a cast.
  • This consists of a uniform plastic, namely the model material, so that a delay by different
  • Thermal expansion coefficient is avoided.
  • the model is quasi dimensionally stable. Construction work, for example on a base frame, is no longer necessary.
  • the new process is further characterized by its seamless surface, this means for the customer no sticking as before and thus little rework, such as grinding u. ⁇ .
  • the special continuous vacuum Verguss leads to a very dense, flawless surface. The properties can be adapted to their application.
  • models of individual parts are to be understood, which are later assembled to form an overall model.
  • all of the body parts of a vehicle may each be considered a model of their own, though they are later assembled to the overall model "vehicle.”
  • the joints forming at the abutting edges of the models are functional and / or design-related joints, which are also present on the vehicle bodies.
  • the model is cast konturnah. Due to the contour-close casting, the mechanical processing times on the model are significantly reduced. The result is faster model production times, lower production costs and less waste.
  • the model including its at least one stabilizing agent is poured as a thin-walled hollow body.
  • This has the advantage that the model is much lighter than a Vollformg automatmodell or a built model. Since a thin-walled model requires significantly less material than a full-cast model, it is also possible to use higher-quality model materials, for example with better casting properties and / or higher strength, without increasing the model costs because of the more expensive model material. In this way it is also possible to produce very large models, such as those used in aircraft, inexpensive and manageable.
  • the thin-walled model to increase its stability is structurally provided with stabilizing elements, such as ribs, which consist of monolithic casting of the same material as the model itself.
  • stabilizing elements such as ribs, which consist of monolithic casting of the same material as the model itself.
  • a model manufactured in this way has a high stability and dimensional stability ,
  • the casting mold and / or core shape of a lightweight material for.
  • a lightweight material for.
  • the mold design is usually done using CAD data.
  • the surfaces of the casting mold and / or the cores are pretreated before the casting process.
  • Preferred methods are siliconizing, sealing or applying a suitable release layer. This avoids sticking of the green cast to the surface of the mold, and also makes it easier to separate the mold from the mold after curing.
  • the models can be thermally treated in an alternative embodiment of the invention, if necessary.
  • the model is cast with a measure for a mechanical finishing.
  • the mold is composed of uniform and interconnectable mold blocks for producing a model with a grid-shaped base frame.
  • Such moldings can be very simple and inexpensive, z. B. made of polystyrene foam or polyurethane foam. They are provided on their outer surfaces with corresponding connecting elements, such as tongue and groove, so that they can be composed without much effort to the desired shape of the base frame.
  • FIG. 1 An embodiment of the invention is illustrated by the example of data control models for a vehicle in the drawing and described in more detail below.
  • the drawing shows a longitudinal section of the arranged on a Cubing basic block 1 according to their real position on a vehicle data control models in a spatial representation.
  • the basic cubing frame 1 was cast in a 400x400 mm grid in solid plastic.
  • the grid construction has the advantage that large dimensional differences in the overall model can already be realized via the number of superimposed and / or juxtaposed grids of the Cubing basic block 1.
  • the data control models themselves then usually bridge significantly lower profile differences, which considerably simplifies their production.
  • the overall model is composed of a data control model for the roof 2, the windshield 3, the hood 4 and the front bumper 5.
  • Each of these data control models 2 to 5 in turn consists of a molding surface 6 and a supporting structure 6 supporting substructure 7, which also consists of grids.
  • its screening is made smaller, namely in the dimensions 200 ⁇ 200 mm.
  • Form surfaces 6 and substructure 7, however, are cast in one piece, that is, one and the same material.
  • the material for the basic cubing block 1 is selected so that its coefficient of expansion is not or only slightly different from that of the data control models 2 to 5. Conveniently, it can of course consist of the same material as the data control models 2 to 5.
  • the data control models 2 to 5 are firmly connected to their substructure 7 with the Cubing basic block 1, for example, ver donated and screwed.

Abstract

L'invention concerne un procédé pour réaliser des modèles en matière plastique, par exemple en duromères tels que les polyuréthanes, les résines époxy ou des matières similaires, pour couler des pièces moulées servant, par exemple, de gabarits ou de modèles de contrôle de travaux ou de données dans la construction de moules, l'industrie automobile ou d'autres branches industrielles. Selon l'invention, le modèle, avec l'agent de stabilisation qu'il contient, est coulé comme une unité faite d'une matière homogène, à savoir la matière du modèle, de manière à éviter une déformation due à des coefficients de dilatation thermique différents. Les modèles ainsi réalisés se caractérisent par des temps de fabrication rapides, des coûts de production faibles, des surfaces sans joint et peu de retouches à effectuer.
PCT/DE2005/002007 2004-11-18 2005-11-08 Procédé pour réaliser des modèles en matière plastique WO2006053522A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410055776 DE102004055776A1 (de) 2004-11-18 2004-11-18 Verfahren zur Herstellung von Modellen aus Kunststoff
DE102004055776.4 2004-11-18

Publications (1)

Publication Number Publication Date
WO2006053522A1 true WO2006053522A1 (fr) 2006-05-26

Family

ID=35925217

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2005/002007 WO2006053522A1 (fr) 2004-11-18 2005-11-08 Procédé pour réaliser des modèles en matière plastique

Country Status (2)

Country Link
DE (1) DE102004055776A1 (fr)
WO (1) WO2006053522A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012102852A1 (de) 2012-04-02 2013-10-02 Rampf Tooling GmbH & Co. KG Kunststoff und Verfahren zur Herstellung einer Frontgussbeschichtung für Giessereianwendungen

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0106203A1 (fr) * 1982-09-21 1984-04-25 Georg Fischer Aktiengesellschaft Corps coulé à paroi mince
EP0502648A1 (fr) * 1991-03-06 1992-09-09 Idemitsu Petrochemical Company Limited Pare-chocs pour véhicule automobile
FR2675733A1 (fr) * 1991-04-24 1992-10-30 Sotecfond Sarl Procede de fabrication d'une ebauche en matiere synthetique pour la realisation de maquettes et de prototypes et matiere synthetique mise en óoeuvre dans ce procede.
DE4436614A1 (de) * 1994-10-13 1996-04-18 Donner Wilfried Fahrrad-Anhänger
JPH1142103A (ja) * 1997-07-28 1999-02-16 Mizuno Corp スポーツシューズ用の靴底
US6247222B1 (en) * 1999-06-25 2001-06-19 Plasco Corporation Process for casting a plastic die
US6468373B1 (en) * 2000-04-20 2002-10-22 Huffy Corporation Method of making a lighted backboard assembly
US20030097796A1 (en) * 2000-04-12 2003-05-29 Stephan Schutt Plastic supporting part that is injection molded onto the vehicle door inner panel for preventing the penetration of moisutre, and method for the production thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL179527C (nl) * 1977-05-20 1986-09-16 Philips Nv Werkwijze en inrichting voor de vervaardiging van een reflektor met een kunststof steunlichaam.
DE3204052A1 (de) * 1982-02-06 1983-08-18 Eberhard Faber Gmbh, 8430 Neumarkt Verfahren und vorrichtung zur herstellung plastischer figuren oder modelle fuer spiel- oder bastelzwecke
DE8204204U1 (de) * 1982-02-16 1982-07-15 Sollner, Erich, 7250 Leonberg Modell zum giessen von basisrahmen fuer den modell- und lehrenbau
GB2136364B (en) * 1983-03-04 1987-01-28 Honda Motor Co Ltd Automobile wing

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0106203A1 (fr) * 1982-09-21 1984-04-25 Georg Fischer Aktiengesellschaft Corps coulé à paroi mince
EP0502648A1 (fr) * 1991-03-06 1992-09-09 Idemitsu Petrochemical Company Limited Pare-chocs pour véhicule automobile
FR2675733A1 (fr) * 1991-04-24 1992-10-30 Sotecfond Sarl Procede de fabrication d'une ebauche en matiere synthetique pour la realisation de maquettes et de prototypes et matiere synthetique mise en óoeuvre dans ce procede.
DE4436614A1 (de) * 1994-10-13 1996-04-18 Donner Wilfried Fahrrad-Anhänger
JPH1142103A (ja) * 1997-07-28 1999-02-16 Mizuno Corp スポーツシューズ用の靴底
US6247222B1 (en) * 1999-06-25 2001-06-19 Plasco Corporation Process for casting a plastic die
US20030097796A1 (en) * 2000-04-12 2003-05-29 Stephan Schutt Plastic supporting part that is injection molded onto the vehicle door inner panel for preventing the penetration of moisutre, and method for the production thereof
US6468373B1 (en) * 2000-04-20 2002-10-22 Huffy Corporation Method of making a lighted backboard assembly

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 05 31 May 1999 (1999-05-31) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012102852A1 (de) 2012-04-02 2013-10-02 Rampf Tooling GmbH & Co. KG Kunststoff und Verfahren zur Herstellung einer Frontgussbeschichtung für Giessereianwendungen

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