EP1833651A1 - Procede pour produire une structure plane heterogene, en particulier multicolore, outil, et structure plane produite - Google Patents

Procede pour produire une structure plane heterogene, en particulier multicolore, outil, et structure plane produite

Info

Publication number
EP1833651A1
EP1833651A1 EP05813639A EP05813639A EP1833651A1 EP 1833651 A1 EP1833651 A1 EP 1833651A1 EP 05813639 A EP05813639 A EP 05813639A EP 05813639 A EP05813639 A EP 05813639A EP 1833651 A1 EP1833651 A1 EP 1833651A1
Authority
EP
European Patent Office
Prior art keywords
tool
cavity
sealing element
tool part
plastic material
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.)
Withdrawn
Application number
EP05813639A
Other languages
German (de)
English (en)
Inventor
Heinz Dieter Wellen
Hubert BRÜCKNER
Peter Cempulik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Johnson Controls Interiors GmbH and Co KG
Original Assignee
Johnson Controls Interiors GmbH and 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 Johnson Controls Interiors GmbH and Co KG filed Critical Johnson Controls Interiors GmbH and Co KG
Publication of EP1833651A1 publication Critical patent/EP1833651A1/fr
Withdrawn legal-status Critical Current

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
    • 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
    • B29C37/0057—Moulding single grooves or ribs, e.g. tear lines
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1635—Making multilayered or multicoloured articles using displaceable mould parts, e.g. retractable partition between adjacent mould cavities
    • B29C45/1639—Removable partitions between adjacent mould cavity portions
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1671—Making multilayered or multicoloured articles with an insert
    • 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
    • B29C67/246—Moulding high reactive monomers or prepolymers, e.g. by reaction injection moulding [RIM], liquid injection moulding [LIM]
    • 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
    • B29L2031/3005—Body finishings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31938—Polymer of monoethylenically unsaturated hydrocarbon

Definitions

  • the invention relates to a method for producing a heterogeneous, in particular multi-colored sheet, for example, a decorative skin for an interior trim part of a vehicle, as well as suitable tools and fabrics produced therewith.
  • a method for producing a heterogeneous but one-piece molded part is known, the region of a hard, thermoplastic material, such as polypropylene (PP) or a PP compound, and an elastically deformable material, such as a thermoplastic Elastomer on an olefinic basis.
  • the first and the second molding segment are made in separate tools and subsequently joined by the injection molding of a connection segment to form a unit.
  • This method is suitable for the production of small-sized molded parts with complex geometry and high-quality appearance, but lends itself to the production of large and areal components, especially decorative skins for interior trim parts, due to the complex handling of the extended component segments less.
  • the object of the invention is to provide a process for producing high-quality and heterogeneous, in particular at least two-colored, fabrics.
  • the object is achieved in that in this method, at least a first cavity and a second cavity of a tool with at least a first and a second, flowable and after removal of a one-piece sheet plastic material are filled, at least when filling a cavity a along the parting plane to the adjacent cavity extending sealing element is arranged in the tool.
  • a suitable tool for carrying out the method has at least one first tool part and a second tool part which can be displaced relative thereto, which form at least one first cavity and an adjacent second cavity after closure of the tool, which can be filled with at least one first and one second flowable plastic material ,
  • a sealing element is arranged along the dividing plane between the first cavity and the second cavity.
  • the following embodiments of the method can be used with particular advantage when using reactive curing plastic materials which are injected into the cavities by means of an injection molding process (Reaction Injection Molding (RIM)).
  • RIM Reaction Injection Molding
  • These plastics have a particularly low viscosity in a flowable state, so that the sealing between the cavities has an extraordinary importance.
  • the sealing element is firmly connected to a tool part, in particular the upper tool, and to another tool part, in particular the lower tool, can be pressed.
  • the sealing element under fluid pressure expandable (“inflatable seal") and to a projecting projection of the other tool part, in particular of the lower tool, can be pressed.
  • the sealing element After filling the first cavity with the first plastic material, the sealing element can be lifted from the other tool part and the second cavity filled with the second plastic material, wherein the first and the second plastic material cohesively, but optically cleanly separated, connect together.
  • the lifting of the seal is preferably done by reducing the fluid pressure inside the tube-like seal, wherein a fluid pressure is adjustable below the ambient pressure is. As a result, a lift-off force is generated, which goes beyond the elastic return of the sealing element.
  • the sealing element is preferably fixedly arranged in a tool part, in particular the upper tool, and can be expanded under fluid pressure to be pressed against the other tool part, in particular the lower tool.
  • the sealing element before filling the cavities in the region of the parting plane releasably inserted into a tool part, in particular the upper tool, and when closing the tool sealingly applied to the other tool part, in particular the lower tool.
  • the sealing element on a projecting projection of the other tool part, in particular of the lower tool can be pressed and connects during filling of the cavities cohesively with the first plastic material on the one hand and the second plastic material on the other.
  • the sealing element is thus lost in the production of the molded skin and must be replaced by a new sealing element before refilling the cavities.
  • the sealing element is releasably in a tool part, in particular the upper tool, used and to the other tool part, in particular the lower tool, can be pressed.
  • FIG. 2a-e tool and method according to another embodiment of the invention are identical to Fig. 2a-e tool and method according to another embodiment of the invention.
  • the tool 1 shown in Fig. 1a to 1d consists of a first tool part 2 in the form of the upper tool 3 and a second tool part 2 'forming lower tool 4th upper tool 3 and lower tool 4 are mutually displaceable and form in their position of use according to Fig. 1 a a first cavity 5 and a second cavity 5 '.
  • the two-dimensionally extending cavities can be filled with different flowable plastic materials via injection molding units, not shown, and are suitable for the production of fabrics which have a very small thickness in relation to their length and width.
  • the cavities need not be flat, but may also have a curved course for the production of complex shaped decorative skins.
  • the upper tool 3 is provided along the dividing plane 6 between the adjacent cavities 5, 5 'with a tubular sealing element 7, whose cavity 8 can be filled after closing the tool parts 2, 2' with a pressurized gas.
  • the sealing element 7 is fixedly connected to the upper tool part 3 by means of a holder 9 fixed by means of screws 9.
  • the sealing element 7, whose longitudinal extension can also have a complex course expands elastically and seals against a projection 11 projecting from the lower tool 4.
  • the first cavity 5, as shown in Fig. 1 b with a thin first, for example filled gray plastic material 12, which is prevented by the sealing element 7 at a transition into the second cavity 5 'and cured as a result of a chemical reaction in the first cavity 5.
  • the cavity 8 of the sealing element 7 is subjected to negative pressure, so that the sealing element 7 lifts off from the projection 11 (FIG. 1c).
  • the second, for example, black plastic material 12 ' which is subsequently injected into the second cavity 5', penetrates as far as the first plastic material 12 and, in the case of reactive curing, bonds to it in a materially cohesive manner. After opening the tool 1 (FIG. 1f), the two-color fabric 13 thus obtained can be removed.
  • the tool according to FIG. 2 a provided for carrying out another method according to the invention likewise has two tool parts 2, 2 'in the form of an upper tool 3 and a lower tool 4, wherein the lower tool 4 is likewise provided with a projection 11.
  • the upper tool On its side facing the projection 11, the upper tool is equipped with a groove-like receptacle 14 for the clamping, but detachable mounting of a strand-shaped, elastic sealing element 7 (FIG. 2b).
  • the one-piece sheet 13 including the lost sealing element 7 can be removed.
  • the Sheet 13 in the region of the parting plane 6 naturally have another, determined by the sealing element 7 color.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un procédé pour produire une structure plane hétérogène, en particulier multicolore (13), par exemple un revêtement décoratif pour une pièce d'habillage intérieur de véhicule. Selon ce procédé, au moins une première cavité (5) et une deuxième cavité (5') d'un outil (1) sont remplies à l'aide d'au moins une première et une deuxième matière plastique (12, 12') à écoulement libre qui forment une structure plane monobloc après le processus de retrait. Un élément d'étanchéité (7) s'étendant le long du plan de séparation (6) vers la cavité adjacente est disposé dans l'outil (1), au moins lors du remplissage d'une cavité.
EP05813639A 2004-12-07 2005-11-25 Procede pour produire une structure plane heterogene, en particulier multicolore, outil, et structure plane produite Withdrawn EP1833651A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410059066 DE102004059066B4 (de) 2004-12-07 2004-12-07 Verfahren zur Herstellung eines heterogenen, insbesondere mehrfarbigen Flächengebildes, Werkzeug und Flächengebilde
PCT/EP2005/012623 WO2006061111A1 (fr) 2004-12-07 2005-11-25 Procede pour produire une structure plane heterogene, en particulier multicolore, outil, et structure plane produite

Publications (1)

Publication Number Publication Date
EP1833651A1 true EP1833651A1 (fr) 2007-09-19

Family

ID=35686451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05813639A Withdrawn EP1833651A1 (fr) 2004-12-07 2005-11-25 Procede pour produire une structure plane heterogene, en particulier multicolore, outil, et structure plane produite

Country Status (6)

Country Link
US (1) US20090280343A1 (fr)
EP (1) EP1833651A1 (fr)
JP (1) JP2008522854A (fr)
CN (1) CN100577392C (fr)
DE (1) DE102004059066B4 (fr)
WO (1) WO2006061111A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005001611C5 (de) * 2005-01-12 2009-08-27 Frimo Group Gmbh Mehrfarbige Gießhäute
DE102006030440A1 (de) * 2006-06-29 2008-01-03 Johnson Controls Interiors Gmbh & Co. Kg Verfahren zur Herstellung eines Ausstattungsteils für ein Kraftfahrzeug, Formwerkzeug und Ausstattungsteil
DE102006047736B3 (de) 2006-10-06 2008-06-19 Johnson Controls Interiors Gmbh & Co. Kg Verfahren zur Herstellung eines mehrfarbigen Flächengebildes, sowie Werkzeug zur Herstellung desselben
FR2911535B1 (fr) * 2007-01-22 2009-04-17 Faurecia Interieur Ind Snc Moule pour la production d'une piece en matiere plastique grainee
EP3170641B1 (fr) * 2015-11-20 2019-09-25 SMP Deutschland GmbH Dispositif et procédé de fabrication d'une peau de cuisson tridimensionnelle thermoplastique
DE102017121558B3 (de) * 2017-09-18 2019-03-07 Hib Trim Part Solutions Gmbh Verfahren zur Herstellung eines Zierteils für Fahrzeuge unter Nutzung einer verlorenen Dichtung und Zierteil

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2412400A1 (fr) * 1977-12-23 1979-07-20 Allibert Exploitation Procede de moulage de recipients en au moins deux materiaux plastiques differents, machine pour la mise en oeuvre de ce procede et recipients obtenus
JPS6185413A (ja) * 1984-10-02 1986-05-01 Sumitomo Chem Co Ltd 耐熱性メタクリル樹脂の製造方法
DE3739122A1 (de) * 1987-11-19 1989-06-01 Braun Pebra Gmbh Verfahren und vorrichtung zum herstellen von kunststoff-formteilen
JPH0299307A (ja) * 1988-10-06 1990-04-11 Kanto Seiki Co Ltd 多色表皮材の成形金型とその成形方法
DE3932016A1 (de) * 1989-09-26 1991-04-11 Agfa Gevaert Ag Vorrichtung zum zweischichtigen spritzgiessen
DE19505155A1 (de) * 1995-02-16 1996-08-22 Magna Zippex Autotechnik Gmbh Verfahren zum Herstellen eines Auskleidungsteiles aus Kunststoff und ein insbesonders nach diesem Verfahren hergestelltes Auskleidungsteil
JPH10315241A (ja) * 1997-05-16 1998-12-02 Toyota Motor Corp 部分表皮一体成形方法及び部分表皮一体成形型
JP2001191361A (ja) * 2000-01-14 2001-07-17 Konan Tokushu Sangyo Kk 表皮付き樹脂成形品の成形方法及び成形装置
DE10211663B4 (de) * 2002-03-15 2011-02-10 Johnson Controls Interiors Gmbh & Co. Kg Verfahren zur Herstellung eines aus zwei einstückig miteinander verbundenen Segmenten bestehenden Formteils, insbesondere für einen Fahrzeuginnenraum, sowie nach diesem Verfahren hergestelltes Formteil

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006061111A1 *

Also Published As

Publication number Publication date
CN1906008A (zh) 2007-01-31
CN100577392C (zh) 2010-01-06
DE102004059066B4 (de) 2008-12-11
JP2008522854A (ja) 2008-07-03
US20090280343A1 (en) 2009-11-12
WO2006061111A1 (fr) 2006-06-15
DE102004059066A1 (de) 2006-06-08

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