EP1749628B1 - Moule pour le coulage sous pression de pièces de vaisselle - Google Patents

Moule pour le coulage sous pression de pièces de vaisselle Download PDF

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Publication number
EP1749628B1
EP1749628B1 EP06016318.5A EP06016318A EP1749628B1 EP 1749628 B1 EP1749628 B1 EP 1749628B1 EP 06016318 A EP06016318 A EP 06016318A EP 1749628 B1 EP1749628 B1 EP 1749628B1
Authority
EP
European Patent Office
Prior art keywords
mould
mold
die casting
sealing surface
cylindrical sealing
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.)
Active
Application number
EP06016318.5A
Other languages
German (de)
English (en)
Other versions
EP1749628A2 (fr
EP1749628A3 (fr
Inventor
Alois Seer
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.)
Maschinen und Stahlbau Julius Lippert GmbH and Co KG
Original Assignee
Maschinen und Stahlbau Julius Lippert 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.)
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Publication date
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Publication of EP1749628A2 publication Critical patent/EP1749628A2/fr
Publication of EP1749628A3 publication Critical patent/EP1749628A3/fr
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Publication of EP1749628B1 publication Critical patent/EP1749628B1/fr
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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
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/26—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor
    • B28B1/261—Moulds therefor
    • 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
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/26—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor
    • B28B1/261—Moulds therefor
    • B28B1/262—Mould materials; Manufacture of moulds or parts thereof
    • B28B1/263—Plastics
    • 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
    • B28B7/0002—Auxiliary parts or elements of the mould
    • B28B7/0011—Mould seals

Definitions

  • the invention relates to a die-casting mold for the production of crockery items, such as cups, cups o. The like., With a top mold, a lower mold part and at least two mold side parts, wherein the mold parts in the contracted state along sealing surfaces to each other, the die casting abutting, and with their shape contours a Determine the mold cavity corresponding cavity.
  • Such a die is, for example, from DE 103 33 979 A1 known.
  • the upper mold part is designed as a core part.
  • This known die-casting mold is intended for the production of cups with a molded handle.
  • the mold side parts are formed such that they form a blind shard inside the handle.
  • the sealing of the molded parts takes place by bracing, ie by a pressing together of the corresponding pressing surfaces of the moldings.
  • the moldings are made of a porous plastic material, they have a long service life compared to also conventional plaster molds.
  • a slurry is pressed in which fills the mold cavity and forms a ceramic body.
  • the shards will be in the Pressed mold cavity through the moldings, for example, compressed air to evenly dissolve or detach the dishware formed in the mold cavity of the surface of the moldings.
  • the die casting mold can be relaxed, ie the pressure between the mold parts can be removed, and the blank of the dishware can be removed from the opened die casting mold.
  • a die-casting machine for the production of hollowware, in particular of cups, cups o.
  • the like which has at least one casting station, which has a machine-fixed first form side part, a second form side part, a top mold and a lower mold part.
  • the second mold side part is adjustable by means of a drive device between a casting position and a release position back and forth.
  • the upper mold part and the lower mold part are also adjustable back and forth between a pouring and a release position.
  • the AT 69 993 B discloses a die casting mold having an upper part mold, a lower part mold, and side part molds. Each part form has a pressure-resistant airtight vessel and within the vessel a filter member. Each filter member has a dewatering device. The dewatering devices are connected via external pipelines with a gas-liquid separator. This known device is used for hollow casting of a slurry.
  • the filter members consist essentially of porous filter materials which have a suitable cohesive or self-bonding property.
  • the porous filter materials include, for example, gypsum, porous cement materials, porous plastics, porous metal, porous ceramics, and mixtures thereof.
  • From the DE 10 2005 002 254 A1 is a device for the production of pressure-pressed ceramic objects, in particular cups, a Mouth edge and have a foot, known.
  • This known device has a multi-part die-casting mold with a lower mold part, a upper mold part and with mold side parts, through which a mold cavity is determined in the contracted state.
  • the die has at least one annular slip distribution chamber having a defined spacing from the mold cavity and spaced from the mold cavity by an annular gap of the die which fluidly connects the slip distribution chamber to the mold cavity.
  • the invention has for its object to provide a pressure mold of the type mentioned, in which the sealing of the mold cavity in the contracted state of the moldings is realized reliably in a simple manner.
  • the lower mold part forms a core part and has a ring seal on its sealing surface.
  • This ring seal is preferably formed by a sealing cord element.
  • the seal between the core part forming a lower mold part and the mold side parts is no longer realized and ensured by a non-positive pressing together but simply by the aforementioned ring seal.
  • the mold base can thus advantageously in a stationary manner in the die-casting mold according to the invention Fixed base element.
  • This base element may be a dimensionally stable plate element.
  • the lower part forming a core part may be screwed onto the plate member.
  • the lower part forming a core part has an adjacent to its shape contour cylindrical sealing surface.
  • the cylindrical sealing surface is formed with a circumferential groove for receiving the annular seal.
  • the mold side parts have part-cylindrical sealing surfaces, which are adapted to the cylindrical sealing surface of the mold base.
  • the part-cylindrical sealing surfaces of the respective mold side part are expediently formed with a groove in which a partial ring seal is provided. If the die-casting mold according to the invention has two mold side parts, then the partial-ring seals are half-rings which are formed by cutting an annular seal apart centrally. If the pressure casting mold according to the invention has, for example, more than two mold side parts, an annular seal is subdivided into a corresponding number of partial ring seals. The partial ring seals are pressed into the groove of the respective mold side part.
  • the groove can be formed in the respective mold side part during its manufacture. Another possibility is that in the form of side parts, for example, in a subsequent repair of the same groove is milled.
  • the upper mold top forms a lid in the die casting mold according to the invention and on its sealing surface having a second ring seal.
  • the upper mold part may have an adjacent to its shape contour cylindrical sealing surface with a circumferential groove for receiving the second ring seal is formed.
  • the second ring seal may be formed like the first ring seal of the mold part forming a core part.
  • Such a design has the advantage that a possible height offset in the upper mold part on a secure seal against the mold side parts has no effect, so that it is possible to work simultaneously with multiple forms without sealing problems.
  • a multiple form is, for example, in the cited above DE 103 07 669 B3 disclosed.
  • the adapted to the cylindrical sealing surface of the upper mold part part cylindrical sealing surface of the respective mold side member is formed with a groove in which a partial ring seal is provided.
  • a partial ring seal is provided for sealing the upper mold part in relation to the mold side parts.
  • the upper mold part, the lower mold part and the mold side parts are preferably made of a porous material.
  • This porous material may be a porous plastic material.
  • the uniform detachment of the shards formed in the mold cavity, ie dishware, for example, by pressing in compressed air, which is referred to as rinsing takes place.
  • rinsing takes place for certain types of dishes, especially in a Core part forming lower mold part and in the handle portion of the mold side parts certain areas are not or not sufficiently flushed, which has a clogging or Blindwerden these areas result, so that the manufactured crockery can not be reliably solved by the moldings.
  • the upper mold part and / or the lower mold part and / or the molded side parts may be formed with rinsing chambers each having an inner contour which is at least approximately adapted to the shape contour of the corresponding molded part.
  • rinsing chambers each having an inner contour which is at least approximately adapted to the shape contour of the corresponding molded part.
  • the rinsing chambers can be realized directly in the production of the respective molded part. Such moldings are e.g. produced by casting.
  • FIG. 1 shows a design of the die casting mold 10 for the production of crockery parts 12.
  • the crockery parts 12 are, for. For example, cups.
  • Die casting mold 10 has an upper mold part 14, a lower mold part 16 and mold side parts 18.
  • the moldings 14, 16 and 18 are movable together (see FIG. 2 ) and away from each other (see FIG. 1 ). This movability is indicated by the double arrow 20 associated with the upper mold part 14 and by the double arrows 22 associated with the mold side parts 18.
  • the lower mold part 16 forms a core part, it is formed with a mold contour 24.
  • This mold contour 24 determines the inner surface of the utensil part 12.
  • the upper mold part 14 forms a lid and is formed with a mold contour 26 which determines the outside bottom surface 28 of the utensil part 12.
  • the mold side parts 18 are each formed with a mold contour 30. The shape contours 30 of the side parts 18 determine the outer surface 32 of the crockery part 12.
  • the lower mold part 16 has a cylindrical sealing surface 34 adjacent to its mold contour 24, which is formed with a circumferential groove 36.
  • the circumferential groove 36 serves to receive a ring seal 38, which in the closed state of the die-casting mold 10 (see FIG. 2 ) between the mold base 16 and the mold side parts 18 accomplished a seal.
  • the mold side parts 18 are formed with part-cylindrical sealing surfaces 40, which are adapted to the cylindrical sealing surface 34 of the mold base.
  • the partially cylindrical sealing surfaces 40 adjoin the mold contour 30 of the respective mold side part 18.
  • the lid forming a top 14 has a contiguous to its shape contour 26 cylindrical sealing surface 42 which is formed with a circumferential groove 44.
  • the circumferential groove 44 is provided for receiving a second annular seal 46.
  • With the help of the second ring seal 46 results in in FIG. 2 drawn closed state of the die casting mold 10 a seal between the upper mold part 14 and the mold side parts 18.
  • the mold side parts 18 have, adjacent to their shape contour 30 a part-cylindrical sealing surface 48, which is adapted to the cylindrical sealing surface 42 of the upper mold part 14.
  • the upper mold part 14, the lower mold part 16 and the mold side parts 18 each consist of a porous plastic material.
  • the upper mold part 14 is provided with flushing bores 50
  • the lower mold part 16 is provided with flushing bores 52
  • the molded side parts 18 are formed with flushing bores 54.
  • FIGS. 3 and 4 an embodiment of a core part forming mold base 16, which is formed with flushing chambers 58 - instead of Spülbohrept 52 -.
  • the rinsing chambers 58 have an inner contour 60 which is at least approximately adapted to the shape contour 24 of the lower mold part 16, whereby a uniform purging is ensured even in critical regions of the mold bottom part 16.
  • the upper mold part 14 and / or the mold side parts 18 may be formed with flushing chambers, which replace the flushing holes in these moldings.
  • FIGS. 3 and 4 illustrate such stiffening webs of the core part forming mold part 16, which are designated by the reference numeral 64.
  • FIG. 5 shows in one of the FIG. 1 corresponding representation of an embodiment of the die 10, which differs from the in FIG. 1 Drawn die 10 only differs in that the mold side parts 18 are formed on the mold bottom 16 associated Partzylindrischen Abdicht Chemistry 40 and on the top part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part 14 associated Part
  • the grooves 66, 68 and the partial ring seals 70, 72 are dimensioned such that the partial ring seals 70, 72 project after their attachment in the associated grooves 66, 68, for example about 1 mm beyond the part-cylindrical sealing surface 40, 48.
  • moving the moldings then results in a pressing of the projections of the partial ring seals 70, 72 and thus a secure seal.
  • a partial ring seal 70 only on the partial cylindrical sealing surface 40 of the respective molded side part 18 belonging to the lower mold part 16 and to dispense with the partial annular seals 72 of the mold side parts 18 belonging to the upper mold part 14.

Claims (10)

  1. Moule pour le coulage sous pression de pièces de vaisselle (12) telles que des gobelets, des tasses ou similaires, avec une partie supérieure de moule (14), une partie inférieure de moule (16) et au moins deux parties latérales de moule (18), les parties de moule (14, 16, 18) reposant de manière étanche l'une contre l'autre dans l'état fermé le long de surfaces étanches et déterminant avec leurs contours de moule (24, 26, 30) un espace creux de moule (56) correspondant à la pièce de vaisselle (12), la partie inférieure de moule (16) formant une partie de noyau et présentant sur sa surface étanche (34) une garniture annulaire (38), la partie inférieure de moule (16) présentant une surface étanche (34) cylindrique contiguë à son contour de moule (24) et les parties latérales de moule (18) présentant des surfaces étanches partiellement cylindriques (40) qui sont adaptées à la surface étanche cylindrique (34) de la partie inférieure de moule (16),
    caractérisé en ce
    que la surface étanche cylindrique (34) de la partie inférieure de moule (16) est réalisée avec une rainure périphérique (36) pour la réception de la garniture annulaire (38) et en ce que la surface étanche partiellement cylindrique (40) de la partie latérale de moule (18) respective est réalisée avec une rainure (66), dans laquelle une garniture partiellement annulaire (70) est enfoncée.
  2. Moule pour le coulage sous pression selon la revendication 1,
    caractérisé en ce
    que la partie inférieure de moule (16) est fixée sur un élément de base fixe (62).
  3. Moule pour le coulage sous pression selon la revendication 1,
    caractérisé en ce
    que la partie supérieure de moule (14) forme une partie de couvercle et présente sur sa surface étanche (42) une seconde garniture annulaire (46).
  4. Moule pour le coulage sous pression selon la revendication 3,
    caractérisé en ce
    que la partie supérieure de moule (14) présente une surface étanche (42) cylindrique contiguë à son contour de moule (26) qui est réalisée avec une rainure périphérique (44) pour la réception de la seconde garniture annulaire (46).
  5. Moule pour le coulage sous pression selon la revendication 4,
    caractérisé en ce
    que les parties latérales de moule (18) présentent des surfaces étanches (48) partiellement cylindriques contiguës à leurs contours de moule (30) qui sont adaptées à la surface étanche cylindrique (42) de la partie supérieure de moule (14).
  6. Moule pour le coulage sous pression selon la revendication 5,
    caractérisé en ce
    que la surface étanche partiellement cylindrique (48) de la partie latérale de moule (18) respective est réalisée avec une rainure (68), dans laquelle une garniture partiellement annulaire (72) est prévue.
  7. Moule pour le coulage sous pression selon l'une quelconque des revendications 1 à 6,
    caractérisé en ce
    que la partie supérieure de moule (14), la partie inférieure de moule (16) et les parties latérales de moule (18) se composent chacune d'un matériau poreux.
  8. Moule pour le coulage sous pression selon la revendication 7,
    caractérisé en ce
    que les parties de moule (14, 16 et 18) se composent d'un matériau synthétique poreux.
  9. Moule pour le coulage sous pression selon l'une quelconque des revendications 1 à 8,
    caractérisé en ce
    que la partie supérieure de moule (14) et/ou la partie inférieure de moule (16) et/ou les parties latérales de moule (18) sont réalisées avec des chambres de rinçage (58) qui présentant respectivement un contour intérieur (60) adapté au moins approximativement au contour de moule de la partie de moule correspondante (14, 16, 18).
  10. Moule pour le coulage sous pression selon la revendication 9,
    caractérisé en ce
    que les chambres de rinçage (58) de la partie de moule (14, 16, 18) respective sont séparées par des nervures de renforcement (64) qui sont réalisées d'un seul tenant avec la partie de moule respective.
EP06016318.5A 2005-08-05 2006-08-04 Moule pour le coulage sous pression de pièces de vaisselle Active EP1749628B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510036907 DE102005036907B4 (de) 2005-08-05 2005-08-05 Druckgussform zur Herstellung von Geschirrteilen

Publications (3)

Publication Number Publication Date
EP1749628A2 EP1749628A2 (fr) 2007-02-07
EP1749628A3 EP1749628A3 (fr) 2007-04-18
EP1749628B1 true EP1749628B1 (fr) 2015-12-30

Family

ID=37450759

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06016318.5A Active EP1749628B1 (fr) 2005-08-05 2006-08-04 Moule pour le coulage sous pression de pièces de vaisselle

Country Status (2)

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EP (1) EP1749628B1 (fr)
DE (1) DE102005036907B4 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008032915B4 (de) 2008-07-12 2010-06-17 Maschinen- Und Stahlbau Julius Lippert Gmbh & Co. Kg Druckgussform zur Herstellung von Geschirrteilen
DE102008032916B4 (de) 2008-07-12 2010-06-17 Maschinen- Und Stahlbau Julius Lippert Gmbh & Co. Kg Druckgussform zur Herstellung von Geschirrteilen
CN107650312A (zh) * 2017-09-22 2018-02-02 台州市黄岩迅发橡塑制品厂（普通合伙） 一种硅胶杯的制作模具、制作方法及其产品
DE102021101103A1 (de) 2021-01-20 2022-07-21 Dorst Technologies Gmbh & Co. Kg Verfahren zum Herstellen eines Formteils für eine Schlicker-Druckgießform

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR467168A (fr) 1913-03-19 1914-06-05 Schmidt Sche Heissdampf Gesellschaft M B H Système de distribution pour machine motrice
DE2321679C3 (de) * 1973-04-28 1980-06-12 Keraplast Hans Handke Kg, 8595 Waldsassen Verfahren zur Herstellung lederharter keramischer Formlinge und Arbeitsform zur Durchführung des Verfahrens
DE4117745C2 (de) * 1991-05-30 2003-11-13 Sacmi Poröse Formwerkstoffe, ihre Herstellung und ihre Verwendung zur Formgebung keramischer Rohlinge
FR2706803A1 (en) * 1993-06-25 1994-12-30 Elmetherm Process for manufacturing a hollow ceramic product with an appendage, and associated device
IT235163Y1 (it) * 1994-10-10 2000-03-31 Ideal Standard Spa Gruppo di tenuta per elementi maschio di stampi per la colatura di apparecchiature igienico-sanitarie
GB2372958B (en) * 2001-03-06 2004-10-27 Ceram Res Ltd Mould assemblies
DE10307669B3 (de) * 2003-02-21 2004-10-14 Maschinen- Und Stahlbau Julius Lippert Gmbh & Co. Kg Druckgußmaschine
DE10333979B4 (de) 2003-07-25 2006-11-09 Sama Maschinenbau Gmbh Verfahren zur Herstellung von Tassen mit Henkel
DE102005002254B3 (de) 2005-01-18 2006-08-10 Maschinen- Und Stahlbau Julius Lippert Gmbh & Co. Kg Vorrichtung zur Herstellung von druckgepressten keramischen Gegenständen

Also Published As

Publication number Publication date
EP1749628A2 (fr) 2007-02-07
DE102005036907B4 (de) 2010-01-07
DE102005036907A1 (de) 2007-02-15
EP1749628A3 (fr) 2007-04-18

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