[go: up one dir, main page]

EP0768154A1 - Procédé et dispositif pour la fabrication d'un article creux en forme de récipient présentant au moins une partie de surface en contre-dépouille à partir de matière céramique - Google Patents

Procédé et dispositif pour la fabrication d'un article creux en forme de récipient présentant au moins une partie de surface en contre-dépouille à partir de matière céramique Download PDF

Info

Publication number
EP0768154A1
EP0768154A1 EP96115988A EP96115988A EP0768154A1 EP 0768154 A1 EP0768154 A1 EP 0768154A1 EP 96115988 A EP96115988 A EP 96115988A EP 96115988 A EP96115988 A EP 96115988A EP 0768154 A1 EP0768154 A1 EP 0768154A1
Authority
EP
European Patent Office
Prior art keywords
mold
pressure medium
pot
undercut
hollow body
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Withdrawn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
EP96115988A
Other languages
German (de)
English (en)
Inventor
Helmut Materne
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.)
Arte Cera Vera Materne
Original Assignee
Arte Cera Vera Materne
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 Arte Cera Vera Materne filed Critical Arte Cera Vera Materne
Publication of EP0768154A1 publication Critical patent/EP0768154A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0064—Moulds characterised by special surfaces for producing a desired surface of a moulded article, e.g. profiled or polished moulding surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/003—Apparatus or processes for treating or working the shaped or preshaped articles the shaping of preshaped articles, e.g. by bending
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/003—Apparatus or processes for treating or working the shaped or preshaped articles the shaping of preshaped articles, e.g. by bending
    • B28B11/008—Blow moulding, e.g. with or without the use of a membrane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/003—Pressing by means acting upon the material via flexible mould wall parts, e.g. by means of inflatable cores, isostatic presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/006—Pressing by atmospheric pressure, as a result of vacuum generation or by gas or liquid pressure acting directly upon the material, e.g. jets of compressed air

Definitions

  • the invention relates to a method for producing a pot-shaped hollow body made of ceramic material and having at least one undercut extending from the inside to the outside in its jacket region, in which a preform free of undercuts is first produced from a plastic ceramic material in a first operation and in a second operation the jacket area of the plastic preform is pressed outwards and the undercut is formed, and on a device for carrying out the method.
  • a device for producing a pot-like hollow body made of ceramic material and having at least one undercut running from the inside to the outside in its jacket area in which an undercut-free, plastic, initially produced by a pressing or punching process
  • the preform is provided with the undercut in a further step in its jacket area.
  • a deformation tool is used, two of which are free-running Has rotating body trained working heads that act on the wall of the hollow body - a working head from the outside and a working head from the inside.
  • these working heads act on the plastic preform, the same is rotated so that a circumferential, bulbous undercut, which can also be referred to as a so-called undergrip profile, is created.
  • a circumferential, bulbous undercut which can also be referred to as a so-called undergrip profile
  • the invention is therefore based on the object of demonstrating a method for producing a cup-shaped hollow body made of ceramic material and having at least one undercut extending from the inside to the outside in its jacket area, in which the undercut does not have to extend over the entire circumference of the jacket area, but only can also occupy at least a portion of the circumference. This should make it possible to produce area-like, pattern-like features in the jacket area of the hollow body.
  • a device for producing a pot-like hollow body 1 made of ceramic material which in its illustrated embodiment 2 has two undercuts 3 running from the inside to the outside, which are designed as pattern-like shapes.
  • the device consists of a mold 4, which in turn is formed from a lower part 5, an upper part 6 and two side parts 7, 8.
  • the lower part 5 is arranged in a stationary manner and can have a liftable ejector 9.
  • the two side parts are 7,8 can be moved radially outwards and backwards by means of drives, not shown, for completely opening the mold 4 and have undercuts 3 which correspond exactly to the undercuts 3 of the finished hollow body 2.
  • the upper part 6 can be moved upwards.
  • a plurality of locking pins 10 are inserted into the upper part 6, of which, however, only two locking pins 10 can be seen in the drawing.
  • the locking pins 10 are formed so long that they protrude through corresponding holes 11 in the side parts 7, 8 when the mold 4 is closed and extend into holes 12 in the lower part 5.
  • the locking pins 10 have the effect that the two side parts 7, 8 are secured against radial displacement without the need to apply clamping forces.
  • the lower part 5, the upper part 6 and the two side parts 7, 8 of the form 4 delimit an interior space 13.
  • This interior space 13 is now dimensioned such that a preform 14 made of plastic, ceramic material can be used in the same when the upper part 6 is lifted off was produced by a punching or pressing process and has no undercuts protruding outwards, which would impair its insertion into the interior 13 released by the upper part 6.
  • the wall thickness of the preform 14 can be approximately 3 to 20 mm.
  • the preform 14 inserted into the interior 13 lies largely against the wall of the interior 13. Only in the area of the undercuts 3 is the preform 14 not yet in contact with the wall of the interior 13.
  • a ring 15 made of a sealing material is arranged, which is firmly anchored in the upper part 6 via locking pins 16 and which was produced, for example, from a plastic by a casting or injection process.
  • the material of this ring 15 must be selected so that it is not attacked by the volatile stamping oil still on the preform 14.
  • the shape of the ring 15 is now chosen in the illustrated embodiment so that the ring 15 partially surrounds the upper edge of the preform 14 or the hollow body 2 and seals the interior 13 against the two side parts 7, 8.
  • a line 17 is also provided in the upper part 6 of the mold 4, via which a pressure medium can be introduced into the interior 13. Up to this configuration, the right and left sides of the drawing are completely identical.
  • the line 17 opens directly into the interior 13.
  • a pneumatic pressure medium which has a pressure of approximately 2 to 6 bar depending on the wall thickness of the preform 14, is now via this line 17 , initiated, this has the consequence that the jacket area of the preform 14, which is not yet fully against the wall of the interior 13, is pressed outwards and now comes to rest completely in the area of the two undercuts 3.
  • a hollow body 2 is produced from ceramic material, which has an undercut 3 which is limited in area and runs from the inside to the outside.
  • a pot-like membrane 18 adjoins the ring 15 and is integral with it the ring 15 and thus made of the same material as the ring 15. Depending on its size, this membrane 18 has a wall thickness of approximately 0.5 to 4 mm and is firmly connected to the upper part 6 via the ring 15. If necessary, the membrane 18 can be hollow.
  • the pot-like membrane 18 is located on a core 19 which is firmly connected to the upper part 6 of the mold 4 and, if necessary, can also be made in one piece with the upper part 6.
  • the pot-like membrane 18 is advantageously manufactured together with the ring 15 in a casting or injection molding process on the core 19 and the upper part 6.
  • the bottom 18a of the membrane 18 can be firmly anchored to the core 19 via locking pins 20.
  • the jacket region 18b of the membrane 18, however, lies loosely on the jacket surface of the core 19. If necessary, a release agent can be provided in this area, which prevents the jacket area 18b from adhering to the core 19.
  • the line 17 now also opens into the core 19, with at least one channel 21 leading radially outward from the line 17.
  • two channels 21 are shown.
  • a pneumatic or hydraulic pressure medium can now be supplied to the inside of the jacket region 18b of the pot-like membrane 18 via the line 17 and the channels 21. This pressure medium now causes the membrane 18 to strive to expand. This then leads to the fact that the jacket region of the preform 14 is pressed into the existing undercuts 3 and also A pot-like hollow body 2 is formed which has undercuts 3 running from the inside to the outside and which only extend over an angularly limited area of the lateral surface of the hollow body 2.
  • the air is first vented and the pressure in the interior 13 or within the pot-like membrane 18 is reduced. Then the upper part 6 is moved upwards. So that the locking pins 10 leave the bore 11, 12 of the side parts 7, 8 and the lower part 4. Now the side parts 7, 8 can be opened by a radial movement to the outside, so that the hollow hollow body 2 can be removed. This removal can be supported by the only indicated ejector 9.
  • the ejector 9 and the two side parts 7, 8 return to their drawn starting position and the interior 13 is again available for receiving a new preform 14 which then becomes a finished hollow body in the manner already described 2 can be deformed with undercuts 3.
  • the shape 4 has only two side parts 7, 8.
  • the number of these side parts 7, 8 determines the number of undercuts 3 of the finished hollow body 2. If more undercuts 3 are to be provided on the hollow body 2, the number of side parts 7, 8 which can be moved radially outward must also be increased.
  • the side parts 7, 8 can be of the same or different design and extend over the same or different angle. Locking with the lower part 5 and the upper part 6 is not absolutely necessary, but is advisable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
EP96115988A 1995-10-11 1996-10-05 Procédé et dispositif pour la fabrication d'un article creux en forme de récipient présentant au moins une partie de surface en contre-dépouille à partir de matière céramique Withdrawn EP0768154A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19537845 1995-10-11
DE1995137845 DE19537845A1 (de) 1995-10-11 1995-10-11 Verfahren und Vorrichtung zur Herstellung eines topfartigen, mindestens eine Hinterschneidung aufweisenden Hohlkörpers aus keramischem Werkstoff

Publications (1)

Publication Number Publication Date
EP0768154A1 true EP0768154A1 (fr) 1997-04-16

Family

ID=7774577

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96115988A Withdrawn EP0768154A1 (fr) 1995-10-11 1996-10-05 Procédé et dispositif pour la fabrication d'un article creux en forme de récipient présentant au moins une partie de surface en contre-dépouille à partir de matière céramique

Country Status (2)

Country Link
EP (1) EP0768154A1 (fr)
DE (1) DE19537845A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003028967A1 (fr) * 2001-10-01 2003-04-10 Decoraterre S.A.S. Di Mari Giuliano Ec. Presse, appareil de moulage et procede correspondant
EP1249323A3 (fr) * 2001-03-14 2003-12-17 Westerwälder Blumentopffabrik Spang GmbH & Co. KG Procédé et dispositif pour mouler des récipients par compression
CN102343621A (zh) * 2011-06-30 2012-02-08 德清县建明坩埚厂 坩埚成型机
CN102363313A (zh) * 2011-06-30 2012-02-29 德清县建明坩埚厂 一种粘土坩埚成型机
CN102363322A (zh) * 2011-06-30 2012-02-29 德清县建明坩埚厂 坩埚成型系统
CN102363317A (zh) * 2011-06-30 2012-02-29 德清县建明坩埚厂 粘土坩埚成型机
CN102363314A (zh) * 2011-06-30 2012-02-29 德清县建明坩埚厂 一种坩埚成型系统
CN102363315A (zh) * 2011-06-30 2012-02-29 德清县建明坩埚厂 一种坩埚成型机
CN107009490A (zh) * 2017-05-02 2017-08-04 南宫市聚纯炭素有限公司 一种石墨坩埚一次成型模具

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111037713A (zh) * 2019-12-21 2020-04-21 广东天际电器股份有限公司 一种水密封陶瓷锅的加工方法

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD87640A (fr) *
GB152635A (en) * 1919-10-13 1921-10-18 Leandro Cucurny Y Sanmarti Improved process and apparatus for moulding articles of ceramic ware and other plastic materials
US3456291A (en) * 1965-10-15 1969-07-22 Ceskoslovenska Akademie Ved Method and arrangement for shaping objects from ceramic raw material
US3495494A (en) * 1967-07-11 1970-02-17 Cp Corp Threaded plastic member with a reinforced thread
US3618179A (en) * 1969-09-22 1971-11-09 American Standard Inc Hole-forming attachment for powder press
FR2301349A1 (fr) * 1975-02-19 1976-09-17 Liguori Philippe Di Corps creux spheriques en matieres plastiques diverses et leur procede de fabrication
JPH04164825A (ja) * 1990-10-30 1992-06-10 Kuroi Glass Kogyo Kk 装飾照明グローブとその製造方法
EP0533142A1 (fr) * 1991-09-16 1993-03-24 Erich Netzsch GmbH & Co. Holding KG Procédé pour la fabrication de récipients en céramique munis d'anses et moule de presse pour le pressage de tels récipients
US5227576A (en) * 1991-03-14 1993-07-13 Industrial Materials Technology Method for forming complex patterns in the interior of a pressed part formed of compacted particulate material, and apparatus
EP0575921A1 (fr) * 1992-06-25 1993-12-29 Silent Power Gmbh Für Energiespeichertechnik Procédé et appareil pour la fabrication de godets à partir d'un mélange de poudres d'oxydes céramiques
DE29516132U1 (de) * 1995-10-11 1995-12-07 Fa. Arte Cera Vera Materne, 56244 Leuterod Vorrichtung zur Herstellung eines topfartigen, mindestens eine Hinterschneidung aufweisenden Hohlkörpers aus keramischem Werkstoff

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD87640A (fr) *
GB152635A (en) * 1919-10-13 1921-10-18 Leandro Cucurny Y Sanmarti Improved process and apparatus for moulding articles of ceramic ware and other plastic materials
US3456291A (en) * 1965-10-15 1969-07-22 Ceskoslovenska Akademie Ved Method and arrangement for shaping objects from ceramic raw material
US3495494A (en) * 1967-07-11 1970-02-17 Cp Corp Threaded plastic member with a reinforced thread
US3618179A (en) * 1969-09-22 1971-11-09 American Standard Inc Hole-forming attachment for powder press
FR2301349A1 (fr) * 1975-02-19 1976-09-17 Liguori Philippe Di Corps creux spheriques en matieres plastiques diverses et leur procede de fabrication
JPH04164825A (ja) * 1990-10-30 1992-06-10 Kuroi Glass Kogyo Kk 装飾照明グローブとその製造方法
US5227576A (en) * 1991-03-14 1993-07-13 Industrial Materials Technology Method for forming complex patterns in the interior of a pressed part formed of compacted particulate material, and apparatus
EP0533142A1 (fr) * 1991-09-16 1993-03-24 Erich Netzsch GmbH & Co. Holding KG Procédé pour la fabrication de récipients en céramique munis d'anses et moule de presse pour le pressage de tels récipients
EP0575921A1 (fr) * 1992-06-25 1993-12-29 Silent Power Gmbh Für Energiespeichertechnik Procédé et appareil pour la fabrication de godets à partir d'un mélange de poudres d'oxydes céramiques
DE29516132U1 (de) * 1995-10-11 1995-12-07 Fa. Arte Cera Vera Materne, 56244 Leuterod Vorrichtung zur Herstellung eines topfartigen, mindestens eine Hinterschneidung aufweisenden Hohlkörpers aus keramischem Werkstoff

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 16, no. 461 (C - 0988) 25 September 1992 (1992-09-25) *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1249323A3 (fr) * 2001-03-14 2003-12-17 Westerwälder Blumentopffabrik Spang GmbH & Co. KG Procédé et dispositif pour mouler des récipients par compression
WO2003028967A1 (fr) * 2001-10-01 2003-04-10 Decoraterre S.A.S. Di Mari Giuliano Ec. Presse, appareil de moulage et procede correspondant
CN102343621A (zh) * 2011-06-30 2012-02-08 德清县建明坩埚厂 坩埚成型机
CN102363313A (zh) * 2011-06-30 2012-02-29 德清县建明坩埚厂 一种粘土坩埚成型机
CN102363322A (zh) * 2011-06-30 2012-02-29 德清县建明坩埚厂 坩埚成型系统
CN102363317A (zh) * 2011-06-30 2012-02-29 德清县建明坩埚厂 粘土坩埚成型机
CN102363314A (zh) * 2011-06-30 2012-02-29 德清县建明坩埚厂 一种坩埚成型系统
CN102363315A (zh) * 2011-06-30 2012-02-29 德清县建明坩埚厂 一种坩埚成型机
CN107009490A (zh) * 2017-05-02 2017-08-04 南宫市聚纯炭素有限公司 一种石墨坩埚一次成型模具
CN107009490B (zh) * 2017-05-02 2020-02-21 南宫市聚纯炭素有限公司 一种石墨坩埚一次成型模具

Also Published As

Publication number Publication date
DE19537845A1 (de) 1997-04-17

Similar Documents

Publication Publication Date Title
DE2514973B2 (de) Spritzgiessvorrichtung zum herstellen von fahrzeugreifen
DE3343623A1 (de) Schmiedepresse und steuerung dafuer
DE3879484T2 (de) Vorrichtung zur herstellung eines gleichlaufdrehgelenks.
EP0630734A1 (fr) Procédé de démoulage de corps creux moulés par injection avec des contre-dépouilles dans le contour interne et noyau associé
EP0768154A1 (fr) Procédé et dispositif pour la fabrication d'un article creux en forme de récipient présentant au moins une partie de surface en contre-dépouille à partir de matière céramique
DE19508952C2 (de) Preßvorrichtung zur Erzeugung eines Formteils und entsprechendes Formteil
DE4411410A1 (de) Kaltformverfahren für Zahnringprodukte und Gerät zum Ausformen derselben
DE19506067C1 (de) Verfahren zum Ausschneiden eines Ausschnitts aus der Wandung eines als Hohlkörper ausgebildeten Bauteils und Vorrichtung zur Durchführung des Verfahrens
DE2052220C3 (de) Verfahren und Vorrichtung zum Herstellen eines Gegenstandes aus Kunststoff mit einem ringförmigen Einschnitt in einer Form
EP0683031A2 (fr) Procédé de fabrication d'objets en plusieurs parties moulés par injection et dispositif pour la mise en oeuvre du procédé
EP0074473A1 (fr) Procédé et dispositif pour la fabrication de pièces de forme ou des objets en matière plastique
DE2557416A1 (de) Verfahren und vorrichtung zum herstellen eines rohrverbinders mit radialer erweiterung
EP3036090B1 (fr) Système d'outil et procédé de fabrication de composants par le procédé rtm
EP0845312B1 (fr) Outil pour formage à haute pression utilisable avec flexibilité
DE2545199A1 (de) Verfahren zur herstellung von spritzgussteilen und spritzgussmaschine zur durchfuehrung des verfahrens
DE102011057033A1 (de) Presswerkzeug und Formteil
DE29516132U1 (de) Vorrichtung zur Herstellung eines topfartigen, mindestens eine Hinterschneidung aufweisenden Hohlkörpers aus keramischem Werkstoff
DE3906958A1 (de) Verfahren zur herstellung von flachen bauteilen
DE4032316C1 (fr)
DE19510958A1 (de) Verfahren und Vorrichtung zum Herstellen von Bauteilen
DE102007001756A1 (de) Verfahren und Spritzgußform zum Spritzgießen von hohlen Formteilen aus Kunststoff
DE2544325A1 (de) Plastisches formverfahren fuer metalle
DE2439091C2 (de) Formvorrichtung zur Ausbildung hohler Kautschukgegenstände
DE3781497T2 (de) Verfahren und vorrichtung zur herstellung eines formkernes.
EP0097115A1 (fr) Dispositif et procédé pour le filage de profils ou analogue d'un bloc ou d'une billette

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES IT NL PT

17P Request for examination filed

Effective date: 19971008

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20000503