EP1470370A1 - Procede pour produire un element de retenue - Google Patents

Procede pour produire un element de retenue

Info

Publication number
EP1470370A1
EP1470370A1 EP02798358A EP02798358A EP1470370A1 EP 1470370 A1 EP1470370 A1 EP 1470370A1 EP 02798358 A EP02798358 A EP 02798358A EP 02798358 A EP02798358 A EP 02798358A EP 1470370 A1 EP1470370 A1 EP 1470370A1
Authority
EP
European Patent Office
Prior art keywords
sealing element
molded body
range
holder
filling space
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Withdrawn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
EP02798358A
Other languages
German (de)
English (en)
Inventor
Michael Muskalla
Gerhard Hahn
Peter Nass
Howard C. Daley
Robert S. Herrmann
Bernd Schlutheis
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.)
Schott AG
Original Assignee
Carl Zeiss AG
Schott Glaswerke 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 Carl Zeiss AG, Schott Glaswerke AG filed Critical Carl Zeiss AG
Publication of EP1470370A1 publication Critical patent/EP1470370A1/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Withdrawn legal-status Critical Current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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
    • 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
    • B29C33/0038—Moulds or cores; Details thereof or accessories therefor with sealing means or the like
    • B29C33/0044—Moulds or cores; Details thereof or accessories therefor with sealing means or the like for sealing off parts of inserts projecting into the mould cavity
    • 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
    • B29C33/12—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
    • B29C33/123—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels for centering the inserts
    • B29C33/126—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels for centering the inserts using centering means forming part of the 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/3607—Moulds for making articles of definite length, i.e. discrete articles with sealing means or the like
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/74—Moulding material on a relatively small portion of the preformed part, e.g. outsert moulding
    • B29C70/76—Moulding on edges or extremities of the preformed part
    • B29C70/763—Moulding on edges or extremities of the preformed part the edges being disposed in a substantial flat plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/10—Tops, e.g. hot plates; Rings
    • F24C15/108—Mounting of hot plate on worktop
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/34—Feeding the material to the mould or the compression means
    • B29C2043/3488—Feeding the material to the mould or the compression means uniformly distributed into the 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C2043/3602—Moulds for making articles of definite length, i.e. discrete articles with means for positioning, fastening or clamping the material to be formed or preforms inside the 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/3642—Bags, bleeder sheets or cauls for isostatic pressing
    • B29C2043/3655—Pressure transmitters, e.g. caul plates; pressure pads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2709/00—Use of inorganic materials not provided for in groups B29K2703/00 - B29K2707/00, for preformed parts, e.g. for inserts
    • B29K2709/08—Glass

Definitions

  • the invention relates to a holder on an edge region of a molded body, and a method for manufacturing, wherein the molded body consisting of brittle material is inserted into a molding tool, a filling space being formed in the edge region of the molded body by means of the molding tool, the filling space at least by means of a plastic material partially filled and then the molded body with the molded holder is removed from the mold.
  • a holder for a cooking surface is known from DE 197 03 543, the cooking surface being designed as a molded body made of a brittle material.
  • the holder consists of a thermoset material that is reinforced with glass fibers to improve its material properties.
  • DE 196 15 371 A 1 describes a holder which is molded onto a molded body in the injection molding process.
  • a thermoplastic material is used as the material. In this process, the plastic exhibits high shrinkage when cooling.
  • a shrink-absorbing element is used so that no impermissibly high stresses are introduced into the molded body. During the injection molding process, this is inserted into the tool as a separate part and is integrated in the holder on the finished workpiece.
  • EP 98 1 12 258 A 1 discloses a method for producing glass panes overmolded with a plastic.
  • This object is achieved in that the molded body is held in the molding tool by means of a clamping element, a section of the filling space being delimited by means of the clamping element, that a transition area between the filling space and the clamping element is applied to the molded body and that the plastic material is placed in the filling chamber and cured in the extrusion process.
  • an extrusion process is used to produce the holder.
  • a clamping element or also called “pressure pad” is used to fix the molded body.
  • the sealing element guarantees that the filling space is securely sealed.
  • the pressure that is introduced into the molded body via the tensioning element can then be selected such that there is no risk of material breakage.
  • overpressures can sometimes occur. Excess plastic material emerges in the area between the clamping element and the molded body. By using the sealing element, the occurrence of overpressures can be avoided.
  • an adhesive tape is glued onto the molded body as the sealing element.
  • the adhesive tape is easy to apply.
  • the adhesive surface can be designed so that it also performs a sealing function.
  • the sealing element has an elastically and / or plastically deformable wear layer which is deformed by means of the tensioning element, then close irregularities on the surface of the shaped body can also be compensated for with the sealing element, which is of particular interest if the shaped body is a structured surface.
  • the wear layer has a Shore hardness in the range 40 to 80, preferably 50-70, Shore A and / or that the material thickness of the sealing element is in the range between 0.1 to 0.5 mm, preferably in the range between 0.2 to 0.4 mm, is selected.
  • a good seal can in particular also be achieved if it is provided that the sealing element is partially moved into the area of the filling space. In this case, generous tolerances with regard to the accuracy of the application of the sealing element can be guaranteed.
  • the filling space is filled by means of a glass fiber reinforced thermoset material.
  • the holder made with this material is particularly suitable for framing cooking surfaces, since it is temperature-stable and dimensionally stable, scratch-resistant.
  • the sealing element can be removed or remain on the shaped body, depending on the product requirement. If it is left, the material properties must be selected so that they meet the conditions of use of the molded body.
  • the width of the sealing element (extension of the sealing element in the direction of the connection plane of the sealing element to the shaped body) is selected in the range between 10 to 25 mm, preferably in the range from 12 to 18 mm .
  • the sealing element must also be able to safely accommodate the manufacturing conditions that arise during the manufacturing process. According to the invention, it can therefore be provided that the sealing element has a temperature resistance greater than 160 ° C.
  • the risk of overpressure is prevented in particular if it is provided that the distance of the sealing element from the edge of the molded body is selected in the range between 0 to 10 mm, preferably in the range between 1 to 5 mm.
  • the holder can for example be designed like a frame and completely surround the molded body. Then it is preferably provided that the sealing element is laid all around on the molded body.
  • Fig. 1 in side view and partial view of a mounting arrangement with a bracket and a molded body and
  • Fig. 2 shows the mounting arrangement shown in Fig. 1 in one
  • the molded body 30 consists of a brittle material such as glass, glass ceramic or ceramic. It is designed as a plate which is surrounded on its edge by a holder 10.
  • the bracket 10 grips the edge all around.
  • one leg 14 of the holder 10 rests on the top 31 of the molded body.
  • a supporting part 16 extends parallel to the leg 14 and underpins the shaped body and comes to rest on its underside 32.
  • the leg 14 is connected to the support part 16 via a web 15.
  • the web 15 covers the outer edge region of the molded body 30.
  • the web 15 is extended with at least one fastening section 17.
  • the fastening section 17 protrudes right over the support part 16.
  • the supporting part 16 is supported in a partial area via a sealing element 20 on the underside 32 of the molded body 30.
  • the sealing element 20 is designed as an adhesive tape. It has an adhesive layer 22 by means of which it is glued to the underside 32 of the molded body.
  • the adhesive layer 22 is followed by a wear layer which is formed from an elastically resilient material. The function of the sealing element 20 will be explained in more detail later.
  • the leg 14 of the holder 20 merges into a projection 12 via a support section 11.
  • the projection 12 releases the support section from the horizontal, which results in a seal receptacle 13.
  • the projection 12 is supported on a worktop.
  • the part of the arrangement which is located in the region of the web 15 and the fastening section 17 is inserted into an opening in the worktop.
  • a seal is inserted into the seal receptacle 13.
  • FIG. 2 shows a tool with two factory part forms 40.1 and 40.2.
  • the lower mold part mold 40.2 has an adjusting body 40.3. This can be moved in the direction of the vertical using guides.
  • the adjusting body 40.3 can be tensioned in the direction of its degree of freedom of displacement by means of tensioning elements 40.4.
  • the sealing element designed as an adhesive tape is first glued onto the underside 32 of the shaped body 30.
  • the molded body 30 is then inserted into one of the two tool part molds 40.1, 40.2.
  • the second mold part 40.1, 40.2 is put on and the tool is closed.
  • the actuating body 40.3 is then moved linearly until it rests on the underside 32 of the shaped body 30 with its placement surface.
  • the sealing element 20 extends into the area of this filling space.
  • the sealing element 20 also projects inwards to such an extent that the actuating body 40.3 can be supported on it. This creates a seal.
  • the holder 10 is produced in the extrusion process. For this purpose, a thermosetting material, for example an SMC raw material, is inserted into the filling space. After this material has been inserted and the two tool mold parts 40.1, 40.2 have been closed, a pressure is built up in the tool, which then ultimately causes the holder 10 to be shaped.
  • the sealing element 20 prevents material from being pressed into the area between the Underside 32 of the molded body 30 and the bearing surface of the actuator 40.3 is pressed. This effect then causes the brittle fragile molded body 30 to break when an impermissibly large mass of plastic material is expressed.
  • the sealing element 20 prevents this overpressure. Due to the wear layer of the sealing element 20 used, which is designed to be elastically resilient, certain unevenness in the molded body 30 in the region of its underside 32 can be compensated for. In particular, structured, for example nubbed, undersides 32 of the shaped body can also be compensated for. Bottom surfaces 32 structured in this way are used, for example, in cooking surfaces.
  • the tool After a typical curing time of 2 to 3 minutes, the tool is opened and the finished part can be removed.
  • the adhesive tape is partially pressed in during the manufacturing process.
  • the protruding, still visible part can either be subsequently removed or possibly left on the underside 32.
  • the effort for post-processing is significantly reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Abstract

L'invention concerne un procédé permettant de produire un élément de retenue (10) sur une zone marginale d'un corps moulé (30). Le corps moulé (30) consistant en un matériau ayant tendance à la rupture par clivage est placé dans un outil de moulage à l'aide duquel un volume de remplissage est formé dans la zone marginale du corps moulé (30). Le volume de remplissage est rempli au moins en partie à l'aide d'une matière plastique, puis ledit corps moulé est enlevé de l'outil de moulage, conjointement avec l'élément de retenue (10) formé dessus. Afin d'optimiser le processus de fabrication, il est prévu selon l'invention de maintenir le corps moulé dans l'outil de moulage à l'aide d'un élément de serrage (403). Ledit élément de serrage (403) permet de délimiter une section du volume de remplissage. Dans la zone de transition entre le volume de remplissage et l'élément de serrage (403), il est prévu un élément d'étanchéité (20) placé sur le corps moulé. La matière plastique est introduite dans le volume de remplissage par extrusion.
EP02798358A 2002-01-22 2002-12-21 Procede pour produire un element de retenue Withdrawn EP1470370A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10202404 2002-01-22
DE10202404A DE10202404A1 (de) 2002-01-22 2002-01-22 Verfahren zur Herstellung einer Halterung
PCT/EP2002/014702 WO2003062709A1 (fr) 2002-01-22 2002-12-21 Procede pour produire un element de retenue

Publications (1)

Publication Number Publication Date
EP1470370A1 true EP1470370A1 (fr) 2004-10-27

Family

ID=7712815

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02798358A Withdrawn EP1470370A1 (fr) 2002-01-22 2002-12-21 Procede pour produire un element de retenue

Country Status (4)

Country Link
US (1) US20050116385A1 (fr)
EP (1) EP1470370A1 (fr)
DE (1) DE10202404A1 (fr)
WO (1) WO2003062709A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2889580B1 (fr) * 2005-08-02 2013-11-22 Eurokera Plaque de cuisson, appareil de cuisson et procede de fabrication de la plaque
KR101087373B1 (ko) 2009-07-30 2011-11-25 린나이코리아 주식회사 가스레인지의 상판 결합장치
EP2783163B1 (fr) * 2011-11-23 2019-05-29 BSH Hausgeräte GmbH Cadre décoratif pour un appareil ménager, appareil ménager pourvu d'un cadre décoratif de ce type et procédé de fabrication d'un cadre décoratif
ES2456826B1 (es) * 2012-10-19 2015-02-26 Bsh Electrodomésticos España, S.A. Placa de un aparato doméstico con al menos una cubierta a modo de capa
DE102021104138B4 (de) 2021-02-22 2023-02-23 Miele & Cie. Kg Kochfeld und Verfahren zu dessen Herstellung

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US499147A (en) * 1893-06-06 Perry a
US4543283A (en) * 1984-09-04 1985-09-24 Libbey-Owens-Ford Company Encapsulated glazing product
FR2572987B1 (fr) * 1984-09-21 1987-01-02 Pont A Mousson Procede et dispositif de surmoulage d'un entourage de dimensions precises sur le pourtour d'une piece plane ou galbee a tolerances dimensionnelles
DE3782979T4 (de) * 1986-07-10 1993-10-07 Asahi Glass Co Ltd Verfahren zur Herstellung eines verglasten Produkts.
US4996808A (en) * 1987-01-02 1991-03-05 Libbey-Owens-Ford Co. Encapsulated window assembly
US4915395A (en) * 1987-08-21 1990-04-10 Libbey-Owens-Ford Co. Seal construction for a mold structure for encapsulating glass with a gasket
JP2503539B2 (ja) * 1987-10-23 1996-06-05 旭硝子株式会社 ガスケット付窓ガラスの製造方法
JP2839890B2 (ja) * 1988-08-27 1998-12-16 東海興業株式会社 ガラス塩化ビニル樹脂一体成形物の製造方法
IT1224303B (it) * 1988-11-09 1990-10-04 Siv Soc Italiana Vetro Procedimento e dispositivo per la fabbricazione di una guarnizione sul bordo di una lastra di vetro
DE4123256C1 (fr) * 1991-07-13 1992-10-08 Saint Gobain Vitrage
DE19615371C2 (de) * 1996-04-19 1998-09-10 Schott Glaswerke Formkörper aus Glas oder Glaskeramik, eingefaßt in einem umspritzten Kunststoff-Halterahmen und Verfahren zum Einfassen des Formkörpers mit dem Halterahmen
DE19649767A1 (de) * 1996-11-30 1998-06-04 Schott Glaswerke Anordnung zum Anbringen von Glaskeramik-Kochflächen mit einem zu einer dünnen Kante verjüngten Randbereich an einer Arbeitsplatte
DE19703543A1 (de) * 1997-01-31 1998-08-06 Lkh Kunststoffwerk Gmbh & Co Halterung für ein Kochfeld
DE19703268C2 (de) * 1997-01-31 1999-09-16 Lkh Kunststoffwerk Gmbh & Co Halterung für eine Kochfläche
DE19910467C1 (de) * 1999-03-10 2000-10-19 Schott Glas Halterung und Verfahren zur Herstellung einer Halterung für im wesentlichen flache Formkörper aus sprödbrüchigem Werkstoff

Non-Patent Citations (1)

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Title
See references of WO03062709A1 *

Also Published As

Publication number Publication date
WO2003062709A1 (fr) 2003-07-31
WO2003062709A8 (fr) 2005-02-17
US20050116385A1 (en) 2005-06-02
DE10202404A1 (de) 2003-08-07

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