EP0557995B1 - Anlage zum Druckgiessen keramischer Formlinge, insbesondere WC-Schüsseln - Google Patents

Anlage zum Druckgiessen keramischer Formlinge, insbesondere WC-Schüsseln Download PDF

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Publication number
EP0557995B1
EP0557995B1 EP93102964A EP93102964A EP0557995B1 EP 0557995 B1 EP0557995 B1 EP 0557995B1 EP 93102964 A EP93102964 A EP 93102964A EP 93102964 A EP93102964 A EP 93102964A EP 0557995 B1 EP0557995 B1 EP 0557995B1
Authority
EP
European Patent Office
Prior art keywords
mould part
frame
mould
clamping frame
clamping
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.)
Expired - Lifetime
Application number
EP93102964A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0557995A1 (de
Inventor
Günther Söthje
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.)
Erich Netzsch GmbH and Co Holding KG
Original Assignee
Erich Netzsch GmbH and Co Holding 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 Erich Netzsch GmbH and Co Holding KG filed Critical Erich Netzsch GmbH and Co Holding KG
Publication of EP0557995A1 publication Critical patent/EP0557995A1/de
Application granted granted Critical
Publication of EP0557995B1 publication Critical patent/EP0557995B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B28B1/265—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 pressure being applied on the slip in the filled mould or on the moulded article in the mould, e.g. pneumatically, by compressing slip in a closed mould
    • B28B1/266—Means for counteracting the pressure being applied on the slip or on the moulded article in the mould, e.g. means for clamping the moulds parts together in a frame-like structure

Definitions

  • a system of this type known as a press, with two cross-shaped portals arranged at right angles to each other is known, on each of which two molded slides are guided on horizontal rails.
  • a hanging frame extending downward from the associated portal is attached to each slide, on which a mounting plate for mounting a molded part is arranged.
  • Each of the mounting plates can be advanced by hydraulic cylinders relative to the associated hanging frame in the direction of the center of the press and retractable in the opposite direction.
  • a lifting device is arranged in a foundation recess, which carries a lower molded part, which together with the molded parts attached to the four clamping plates results in a complete casting mold.
  • sanitary articles in particular toilet bowls
  • the mold is closed for die casting by moving the carriages guided on the portals in the direction of the press center until the mold parts arranged on the clamping plates come into contact with one another.
  • the lower mold part is raised by means of the lifting device, so that finally a mold cavity is delimited by the mold parts.
  • the hanging frames must be locked with mechanical locking elements fixed in the middle of the press and then the clamping plates must be pushed forward a limited amount relative to the slides and the clamping plate for the lower molded part upwards, so that the molded parts attached to the platen abut each other with a predetermined closing pressure.
  • a further die casting device known from DE-A-2112759, which has a base plate, a vertical head plate fastened thereon, a foot plate arranged at a distance parallel thereto and four horizontal spars which are fastened to the two plates mentioned and a sliding plate parallel to them.
  • the sliding plate is attached to the base plate supported hydraulic piston-cylinder unit displaceable towards the head plate and carries a casting core-like molded part.
  • a platen is pivotally mounted about a horizontal pivot axis, approximately at the height of the lower spars, at right angles to this and is articulated to a piston-cylinder unit which is supported on the head plate.
  • a second, trough-like molded part is attached to the clamping plate.
  • a closed die-casting mold is formed from the two molded parts by bringing the sliding plate closer to the head plate, which is filled with slip. After the pressure holding time and the subsequent standing time have elapsed, the sliding plate together with the core-like molded part is withdrawn in the direction of the base plate and then the clamping plate is pivoted down between the two lower bars and the resulting molded part is placed on a conveyor.
  • the invention has for its object to provide a system for die casting ceramic moldings, in particular toilet bowls, with increased performance.
  • clamping devices arranged on the clamping frame do not have to remain unused after the pressure holding time of the casting mold or casting molds that have held them together until the subsequent service life has elapsed, but can be used immediately for clamping one or more further pressure casting molds.
  • the space around the first-mentioned die or group of such molds is already completely free of clamping devices before the end of the service life, so that the molded parts are immediately accessible, and any necessary reworking of the molded parts can be carried out without delay and the molded parts can be removed.
  • the system shown includes six die-casting molds 10, each with a pair of molded parts 12, 14 and two cores 16 and 18, which together enclose a mold space for die-casting a molding 20, in the example shown a toilet bowl.
  • the two molded parts 12 and 14 of each die are attached to a molded slide 22 and 24, respectively, which has a holder 26 and 28 for this purpose.
  • the two molding slides 22 and 24 for each die 10 are mounted and guided on a common molding guide 30; a total of six molded part guides 30 aligned with one another are provided.
  • Each molded part guide 30 has a first horizontal rod 32, which is ground in a circular cylinder and is fastened with its two ends to a stand 34 in each case.
  • a second rod 36 extends parallel to the first rod 32 and in the position according to FIGS. 2 and 3 below it, but ends shortly before the adjacent stands 34 and is firmly connected to the first rod 32 at each end by a yoke 38 is.
  • One of the two yokes 38 belonging to each molded part guide 30 is connected to a swivel drive 40 which, in the example shown, is formed by a hydraulic or pneumatic piston-cylinder unit and is designed such that it swivels the two yokes 38 together with the second rod 36 about the first rod 32 can, namely from the position shown in FIGS.
  • Each of the molding slides 22 and 24 is connected to the adjacent yoke 38 by a sliding drive 46 and 48, respectively, and these sliding drives - again piston cylinder units are shown - are controlled so that the molding slides 22 and 24 for closing the die 10 towards each other and for opening are movable away from each other.
  • the system also includes a clamping frame 50 which is formed from a plurality of longitudinal beams 52 and cross beams 54 welded to one another, as well as vertical end walls 56 and partition walls 58.
  • the clamping frame 50 is mounted on a frame slide 60 so as to be pivotable about a horizontal pivot axis 62 parallel to the molded part guides 30 and is connected to the frame slide 60 by a pivot drive 64.
  • the pivot drive 64 is designed so that the clamping frame 50 from the operating position shown in FIGS.
  • the frame slide 60 is guided with top rollers 66 and side rollers 68 arranged in sets on a horizontal frame guide 70 which extends parallel to the pivot axis 62 and to the molded part guides 30.
  • a rack 72 in which a pinion 74 engages, is fastened to the underside of the frame guide 70.
  • the pinion 74 can be driven by a motor 76 arranged on the frame slide 60, and this motor is controlled so that it can be moved back and forth between a first casting station 78 and a second casting station 80.
  • Each of the two casting stations 78 and 80 contains three of the die casting molds 10 shown in FIG. 1 together with the associated molding slide 22 and 24.
  • the clamping frame 50 thus either encloses, as shown in FIG. 1, the three die casting molds arranged to the right of the center of the system 10 or the three die casting molds 10 to the left of it.
  • Left clamping devices 82 and right clamping devices 84 and front clamping devices 86 and rear clamping devices 88 are arranged on the clamping frame 50 and in such a number that the molded parts 12 and 14 and cores 16 and 18 of each of the three die casting molds 10 enclosed by the clamping frame 50 can be clamped together by means of sixteen clamping devices are.
  • a mobile core pulling device 90 of a known type is provided, which according to FIG. 1 is just in the first casting station 78 in order to turn the front core 16 and one with one gripper 92 from one of the die casting molds 10 arranged there another gripper 94 to pull the rear core 18.
  • the molded parts 12 and 14 are moved away from one another by moving the molded part slides 22 and 24 in opposite directions, so that the associated molded article 20 is released so that it can then dry on the associated shrink plate 96.
  • the shrinkage plates 96 are smooth on their upper side, so that they do not hinder the shrinkage of the moldings 20 which occurs during drying.
  • the die casting molds 10 in the second casting station 80 are filled with slip under pressure and then remain clamped together by the clamping frame 50 until the pressure holding time has elapsed.
  • the clamping devices 82, 84, 86 and 88 are depressurized and the clamping frame 50 is pivoted upwards into its rest position according to FIG. 4.
  • it is sufficient it is that the molded parts 12 and 14 are held together by the sliding drives 46 and 48 engaging on the associated molded slide 22 and 24 with a small force which would not have withstood the casting pressure by itself.
  • the clamping frame 50 is moved from the second casting station 80 into the first casting station 78 and lowered into its operating position.
  • their cores 16 and 18 are drawn by means of the core pulling device 90 and then the mold parts 12 and 14 together with the moldings 20 held between them are pivoted over the conveyor 44 in the manner described, so that now these moldings are also placed on a shrinkage plate 96 each.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Producing Shaped Articles From Materials (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
EP93102964A 1992-02-28 1993-02-25 Anlage zum Druckgiessen keramischer Formlinge, insbesondere WC-Schüsseln Expired - Lifetime EP0557995B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4206279A DE4206279C1 (enrdf_load_stackoverflow) 1992-02-28 1992-02-28
DE4206279 1992-02-28

Publications (2)

Publication Number Publication Date
EP0557995A1 EP0557995A1 (de) 1993-09-01
EP0557995B1 true EP0557995B1 (de) 1995-08-23

Family

ID=6452868

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93102964A Expired - Lifetime EP0557995B1 (de) 1992-02-28 1993-02-25 Anlage zum Druckgiessen keramischer Formlinge, insbesondere WC-Schüsseln

Country Status (3)

Country Link
EP (1) EP0557995B1 (enrdf_load_stackoverflow)
DE (2) DE4206279C1 (enrdf_load_stackoverflow)
ES (1) ES2075730T3 (enrdf_load_stackoverflow)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4216212C1 (enrdf_load_stackoverflow) * 1992-05-15 1993-04-29 Erich Netzsch Gmbh & Co Holding Kg, 8672 Selb, De
DE4324684C1 (de) * 1993-07-22 1994-09-15 Netzsch Erich Holding Gießanlage und Verfahren zum Druckgießen keramischer Gußstücke
IT1276660B1 (it) * 1995-04-04 1997-11-03 Siti Spa Procedimento per la formazione di sanitari di forma complessa tramite uno stampo comprendente quattro elementi in resina porosa
DE19725107C1 (de) * 1997-06-13 1998-10-22 Thuringia Netzsch Feinkeramik Anlage zum Druckgießen keramischer Artikel
DE19725942C2 (de) * 1997-06-19 2001-02-08 Sama Maschb Gmbh Druckgießanlage für Sanitärartikel
DE19920315A1 (de) * 1999-05-03 2000-11-09 Sama Maschinenbau Gmbh Spannvorrichtung für mehrteilige Gießformen
DE19955629A1 (de) * 1999-11-19 2001-05-23 Sama Maschb Gmbh Vorrichtung und Verfahren zum Gießen von Sanitärartikel
US6428643B1 (en) * 1999-11-19 2002-08-06 Kohler Co. Method and apparatus for casting a plumbing fixture
DE102006044574B3 (de) * 2006-09-19 2008-04-30 Maschinen- Und Stahlbau Julius Lippert Gmbh & Co. Kg Vorrichtung zur Herstellung druckgegossener keramischer Hohlgegenstände
IT1396481B1 (it) 2009-11-17 2012-12-14 Maprof Sas Di Renzo Moschini E C Metodo di fabbricazione di corpi cavi monolitici mediante un processo di colata o di stampaggio ad iniezione.
IT1398825B1 (it) * 2010-03-18 2013-03-21 Sacmi Macchina per la produzione di manufatti ceramici.
DE102017108558A1 (de) 2017-04-21 2018-10-25 Beckhoff Automation Gmbh Fördereinrichtung und Lineartransportsystem

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2112759A1 (de) * 1969-08-19 1972-09-28 Doulton & Co Ltd Druckgiessvorrichtung
DE3740163A1 (de) * 1987-11-26 1989-06-08 Dorst Masch & Anlagen Presse zum herstellen von sanitaerartikeln, insbesondere wc-schuesseln, durch druckgiessen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR737886A (fr) * 1932-05-31 1932-12-17 Dispositif basculant pour le serrage des moules lors de la coulée d'objets céramiques
US3671160A (en) * 1969-10-13 1972-06-20 Mansfield Sanitary Inc Apparatus for a system to extricate intricate ceramic shapes from multiple piece molds
JPH0365304A (ja) * 1989-08-03 1991-03-20 Toto Ltd 衛生陶器の泥漿加圧鋳込み成形装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2112759A1 (de) * 1969-08-19 1972-09-28 Doulton & Co Ltd Druckgiessvorrichtung
DE3740163A1 (de) * 1987-11-26 1989-06-08 Dorst Masch & Anlagen Presse zum herstellen von sanitaerartikeln, insbesondere wc-schuesseln, durch druckgiessen

Also Published As

Publication number Publication date
DE59300493D1 (de) 1995-09-28
ES2075730T3 (es) 1995-10-01
DE4206279C1 (enrdf_load_stackoverflow) 1993-04-22
EP0557995A1 (de) 1993-09-01

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