WO2006131103A1 - Dispositif de moussage d'un composant - Google Patents

Dispositif de moussage d'un composant Download PDF

Info

Publication number
WO2006131103A1
WO2006131103A1 PCT/DE2006/000986 DE2006000986W WO2006131103A1 WO 2006131103 A1 WO2006131103 A1 WO 2006131103A1 DE 2006000986 W DE2006000986 W DE 2006000986W WO 2006131103 A1 WO2006131103 A1 WO 2006131103A1
Authority
WO
WIPO (PCT)
Prior art keywords
foaming
mold cavity
component
tool
separating layer
Prior art date
Application number
PCT/DE2006/000986
Other languages
German (de)
English (en)
Inventor
Jürgen Heitzer
Karl Stangl
Original Assignee
Webasto Ag
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 Webasto Ag filed Critical Webasto Ag
Publication of WO2006131103A1 publication Critical patent/WO2006131103A1/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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/58—Moulds

Definitions

  • the invention relates to a device for foaming a component, in particular for foaming a polyurethane component, according to the preamble of claim 1.
  • Such a device is known, for example, from DE 102 05 028 C1 and comprises a molding tool which is formed from two mold halves which define a mold cavity. Before each foaming process, a release agent must be applied in the area of the mold cavity to ensure non-destructive removal of the foamed component from the foaming mold.
  • release agents are, for example, silicone or wax-containing liquids that may be water-soluble or gasoline-soluble.
  • the foaming tool is wiped after application or spraying of the release agent to remove excess release agent with a tissue or nonwoven cloth.
  • the application of the release agent and the wiping of the Schwarzumtechnikmaschines are associated with a high expenditure of time, with material costs, a burden on the device operator and also with a high cleaning effort.
  • the release agent pollutes the environment.
  • the invention has for its object to provide a device for foaming a component, in which the application of a release agent prior to each foaming completely or partially omitted. This object is achieved by the device with the features of claim 1.
  • the core of the invention is therefore that the foaming tool in the region of the mold cavity at least partially has a permanent coating that favors the demolding of the foamed component, i. adhesion of the foam material, from which the foamed component is formed, on which foaming tool is prevented.
  • a liquid release agent can be completely or partially omitted before each foaming process. This leads to a time advantage over the previously used method.
  • the now possible abandonment of the liquid release agent leads to a relief of the environment and also to a discharge of a suction system, which is usually used in production halls for foamed components and extend their maintenance intervals. Also eliminates a costly cleaning of the foaming tool of liquid release agent residues. In addition, the entrusted with the care of the device people are relieved.
  • the component when producing a polyurethane foam component, such as a frame of a glass sunroof element, the component can be produced with the use of the device according to the invention with a glossy surface, without excess of excess wiping with a cloth or cloth before the foaming process would have to, as it has been used previously
  • the device according to the invention can in principle be used for foaming any components.
  • the device according to the invention can be designed so that it is for foaming a flat, substantially plate-like workpiece, such as a flat or curved glass sheet, which is used for example in a glass sliding roof of a motor vehicle as Deckelele- element used.
  • the glass sheet can be provided in the foaming tool with a plastic frame, which can be made of a polyurethane foam as usual and serves to receive a circumferential seal and / or for the connection of Einlegetei- len with the glass sheet, so that a connection of the glass sheet the vehicle body or a sunroof drive is possible.
  • the separating layer formed from a solid is formed from plastic, in particular a fluorine plastic.
  • plastic in particular a fluorine plastic.
  • fluorine plastics such as PTFE, FEP and / or PFA can be used, which have a good temperature resistance.
  • the release layer representing a release layer may be arranged on a so-called wear layer.
  • This is, for example, a metallic layer applied to the tool steel after a flame spraying process, which forms the carrier for the separating layer and has a certain roughness, which improves the wear behavior of the separating layer.
  • a special embodiment of the device according to the invention has at least one slide, wherein the slide is provided with the separating layer in its region adjacent to the mold cavity.
  • Figure 1 is a highly schematic bottom view of an upper tool of a device for foaming a plastic frame of a glass plate. and FIG. 2 shows a section along the line II-II in FIG. 1.
  • an apparatus for producing a consisting of a polyurethane foam plastic frame 11 of a glass cover member of a motor vehicle sunroof otherwise not shown here is shown.
  • the plastic frame 11 surrounds the edge region of a glass sheet 10.
  • the glass sheet 10 is inserted into the device, so that it is limited in its edge regions by a mold cavity 12 which is formed by a foaming tool 14.
  • the mold cavity 12 has a cross-section that substantially corresponds to that of the foamed plastic frame 11.
  • the foaming tool 14 comprises an upper tool 16 and a lower tool 18, which are separated from one another via a parting plane 20 and define the mold cavity or the mold cavity 12.
  • the mold cavity 12 which is formed along the edges of the rectangular glass sheet 10, has a sprue 22, via which liquid polyurethane can be introduced into the mold cavity, where it foams and hardens.
  • the sprue muzzle 22 is arranged in the region of a longitudinal side of the glass sheet 10.
  • a receptacle 24 for a vent slide 26 is formed in the upper tool 16, which defines a ventilation slot 28 together with the upper tool 14. Via the vent slot 28, which opens into the mold cavity 12, air can be displaced from the mold cavity 12 when the polyurethane material is introduced.
  • the lower tool 18, the upper tool 16 and the slider 26 in the region of the mold cavity 12 each have a release layer 30, 32 and 34 formed from a solid , which is formed in each case from a fluorine plastic, such as PTFE, and is arranged on a metallic wear layer not shown here for the sake of clarity.

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

L'invention vise à faciliter le moussage d'un composant, notamment son démoulage d'un moule à mousse. A cet effet, on utilise un dispositif qui comprend un moule à mousse (14) qui est pourvu d'une empreinte (12) et est recouvert, dans la zone empreinte (12), au moins par sections d'une couche de séparation (30, 32, 34) constituée d'une matière solide. La couche de séparation (30, 32, 34) durable rend totalement ou partiellement superflue l'utilisation d'un agent de séparation liquide.
PCT/DE2006/000986 2005-06-09 2006-06-08 Dispositif de moussage d'un composant WO2006131103A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510026730 DE102005026730A1 (de) 2005-06-09 2005-06-09 Vorrichtung zum Schäumen eines Bauteils
DE102005026730.0 2005-06-09

Publications (1)

Publication Number Publication Date
WO2006131103A1 true WO2006131103A1 (fr) 2006-12-14

Family

ID=36942619

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2006/000986 WO2006131103A1 (fr) 2005-06-09 2006-06-08 Dispositif de moussage d'un composant

Country Status (2)

Country Link
DE (1) DE102005026730A1 (fr)
WO (1) WO2006131103A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007024359C5 (de) * 2007-05-24 2013-10-24 Webasto Ag Deckel für ein Fahrzeugdach sowie Verfahren zur Herstellung eines solchen Deckels
DE202008005802U1 (de) 2008-04-25 2008-07-31 Webasto Ag Deckel eines Fahrzeugdachs mit einem angeschäumten Rahmen und Vorrichtung zur Herstellung eines solchen Deckels
DE102010032095B4 (de) * 2010-07-23 2016-07-14 Faurecia Innenraum Systeme Gmbh Verfahren zum Herstellen eines Dekorteils sowie Dekorteil
DE102010051700B4 (de) * 2010-11-22 2014-03-20 Edag Gmbh & Co. Kgaa Sichtbauteil, Verfahren zu dessen Herstellung sowie Schäumwerkzeug zum Durchführen des Verfahrens
DE102012211911B4 (de) * 2012-07-09 2017-08-31 Frimo Group Gmbh Vorrichtung zur Herstellung von Innenausstattungsbauteilen
DE202013103236U1 (de) 2013-07-19 2013-07-30 Faurecia Innenraum Systeme Gmbh Schieber für ein Schäumwerkzeug
DE102017007098A1 (de) 2017-07-28 2019-01-31 Ruch Novaplast Gmbh + Co. Kg Schieber für ein Schäumwerkzeug
EP3887440B1 (fr) 2018-11-26 2024-09-11 Mubea Carbo Tech GmbH Procédé de production de matériaux de poly(méth)acrylimide
DE202019100095U1 (de) * 2019-01-10 2020-04-15 Motherson Innovations Company Limited Formwerkzeug zum Herstellen eines geschäumten Interieur-Bauteils für ein Kraftfahrzeug, Interieur-Bauteil für ein Kraftfahrzeug sowie Kraftfahrzeug mit einem derartigen Interieur-Bauteil

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1944602A1 (de) * 1969-09-03 1971-03-04 Dynamit Nobel Ag Gussform zum Herstellen von Formteilen aus schaeumbarem Kunststoff
US3931381A (en) * 1970-09-04 1976-01-06 The General Tire & Rubber Company Mold release method for polyurethane integral-skin foam
US5711905A (en) * 1992-10-26 1998-01-27 Ph. Kurtz Eisenhammer Gmbh & Co. Process for producing molded articles from foamed plastic and a mold for performing the process
US20050073176A1 (en) * 2003-07-10 2005-04-07 Webasto Ag Cover for an opening in the roof surface of a motor vehicle and a method for manufacturing the same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2008084A1 (en) * 1970-02-21 1971-09-02 Julius Deuschle Kg Kartonagenf Parting layer for cast or vacuum moulds
EP0118575A1 (fr) * 1983-03-11 1984-09-19 Sodemape Holding AG Outillage en au moins trois parties pour la réalisation de moulages en matière thermoplastique moussante
DE19720927A1 (de) * 1996-05-20 1997-11-27 Hasco Normalien Hasenclever Co Werkzeugform zum Druck- oder Spritzgießen von Metallen und/oder Kunststoffen
TW528665B (en) * 2001-10-15 2003-04-21 Aqua Sonic Service Co Ltd The Aluminium mould for forming the Urethane resin and the Urethane resin manufacturing process
DE10205028C1 (de) * 2002-02-07 2003-08-14 Krauss Maffei Kunststofftech Verfahren und Vorrichtung zur Herstellung eines Mehrzonen-Schaumstoff-Formkörpers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1944602A1 (de) * 1969-09-03 1971-03-04 Dynamit Nobel Ag Gussform zum Herstellen von Formteilen aus schaeumbarem Kunststoff
US3931381A (en) * 1970-09-04 1976-01-06 The General Tire & Rubber Company Mold release method for polyurethane integral-skin foam
US5711905A (en) * 1992-10-26 1998-01-27 Ph. Kurtz Eisenhammer Gmbh & Co. Process for producing molded articles from foamed plastic and a mold for performing the process
US20050073176A1 (en) * 2003-07-10 2005-04-07 Webasto Ag Cover for an opening in the roof surface of a motor vehicle and a method for manufacturing the same

Also Published As

Publication number Publication date
DE102005026730A1 (de) 2006-12-21

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