EP0884151A1 - Installation pour le coulage sous pression d'articles en céramique - Google Patents

Installation pour le coulage sous pression d'articles en céramique Download PDF

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Publication number
EP0884151A1
EP0884151A1 EP98101200A EP98101200A EP0884151A1 EP 0884151 A1 EP0884151 A1 EP 0884151A1 EP 98101200 A EP98101200 A EP 98101200A EP 98101200 A EP98101200 A EP 98101200A EP 0884151 A1 EP0884151 A1 EP 0884151A1
Authority
EP
European Patent Office
Prior art keywords
molded part
clamping
longitudinal guide
carriage
mold
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.)
Ceased
Application number
EP98101200A
Other languages
German (de)
English (en)
Inventor
Herbert Armborst
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.)
Thuringia Netzsch Feinkeramik & Co KG GmbH
Original Assignee
Thuringia Netzsch Feinkeramik & Co KG GmbH
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 Thuringia Netzsch Feinkeramik & Co KG GmbH filed Critical Thuringia Netzsch Feinkeramik & Co KG GmbH
Publication of EP0884151A1 publication Critical patent/EP0884151A1/fr
Ceased 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
    • B28B1/267—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 in moulds or on moulding surfaces supported by, or formed in or by, conveyors
    • 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

  • the invention relates to a system according to the preamble of Claim 1 for die casting ceramic, in particular sanitary ceramic Items such as toilet bowls, bidets, sinks and the like.
  • the second molding car carries only one clamping body for a molded side part and, averted from this, a support plate, that of the second Stand attached opposite.
  • the jig one hydraulic piston-cylinder unit, is in its working position arranged between these two support plates, is supported on the second stand, while the two molded part carriages as well as a total of four molded side parts clamps together, the first stator the reaction force occurring records.
  • Both molds are lower and an upper core is assigned that is perpendicular from below or above forth into cavities between the mold side parts.
  • the casting mold that deals with one of its side moldings supported on the first stand, this is not a problem since one correct position assignment of the cores to the mold side parts of these Casting mold only depends on their own manufacturing tolerances.
  • the location of the mold side parts of the second mold depends in addition to their own manufacturing tolerances from the corresponding ones Tolerances of the first mold.
  • a correct one Interaction of the cores of the second mold with their mold side parts therefore requires that all mold side parts with particularly small, measured in the direction of the longitudinal guide Tolerances have been established, these narrow tolerances themselves do not change significantly during their entire lifespan and also the frame itself under load and temperature fluctuations not deformed. In practice, these conditions can be met insufficiently fulfilled; therefore it is often necessary readjust the cores belonging to the second mold.
  • the invention has for its object a system for Die casting ceramic, especially sanitary ceramic Articles to be designed in such a way that the need for a such readjustment is largely avoided.
  • the system shown in Fig. 1 is made up of three identical modules composed, each having a frame 10.
  • Each Frame 10 consists of two stands 12, two lower side members 14 and two upper side members 16, the left and the right frame 10 each a stand 12 with the middle Have rack 10 in common.
  • the side members 14 and 16 are on both ends with the associated stands 12 through Screws 18 connected so that the entire system if necessary easily extended by one or more frames 10 or also can be shortened.
  • the system for die-casting sanitary ceramic article A in shape down-to-earth toilet bowl - s. 5a and 5b - equipped.
  • the frames 10 have a common longitudinal direction B and each have a longitudinal guide 20 in their central region, that in the example shown from two to the longitudinal direction B parallel rails exist.
  • Molding car 22 arranged one behind the other and in opposite directions Movable in the longitudinal direction B.
  • the two molding car 22 can equipped with rollers or sledge-like on the longitudinal guide 20 be slidable and wear on their facing away from each other Pages each a clamping body 24.
  • the respective stand 12 is also a clamping body 24 attached.
  • the clamping body 24 are each one for fastening Molded side part 26 and 28 formed, respectively, on the in Fig.
  • 3rd left stand 12 a left side mold part 26, on the right Stand 12 a right side molding 28, on the left molding car 22 another right side mold part 28 and on the right Molding car 22 attached another left side mold part 26 is, so that each a left side mold part 26 with a right mold side part 28 can be combined into a mold 30.
  • each frame 10 is therefore provided for a total of two molds 30.
  • each mold has 30 a lower core 32 and an upper core 34, each by means of one Lifting device 36 or 38 along one of the associated stands 12 adjacent vertical lifting axis C can be raised and lowered, in normal operation, after setting up the molds 30, however are not movable in the longitudinal direction B.
  • FIG. 1 and 2 arrange a clamping device 40, which in the example shown with a hydraulic piston-cylinder unit cylinder open on one side and a piston guided therein is formed.
  • the cylinder of the jig 40 is on two Guide bodies 42 guided in the longitudinal direction B and by a spring arrangement 43 in a central position with respect kept on this guide body.
  • the two guide bodies 42 are adjustable in their height on a yoke 44, guided by means of vertical guide rods 46 on the frame 10 and is suspended from a height adjustment device 48.
  • the clamping device 40 takes a working position according to FIGS. 1 and 2 a, in its longitudinal axis B aligned with the common axis of the clamping body 24.
  • the system for die casting works as follows: In its working position shown in FIGS. 1 and 2, the clamping device 40 is placed under hydraulic pressure, so that it forces the two adjacent clamping bodies 24, which are fastened to one of the two molding carriages 22, with the result that the two casting molds 30 are firmly closed without the left mold side part 26 of the left mold or the right mold side part 28 of the right mold moving in the slightest.
  • the mold parting planes of the two casting molds 30 therefore maintain their position, regardless of the dimensional tolerances of the clamping bodies 24 and side mold parts 26 and 28 measured in the longitudinal direction B, provided that the tensile forces caused by the pressure of the clamping device 40 cause elongations of these carriers to be measured in the longitudinal beams 14 and 16, they remain harmless for the position assignment of the cores 32 and 34 to the respectively associated casting mold 30, since each of these cores is arranged close to the adjacent stand 12 via the associated lifting device 36 or 38, which also determines the position of the associated mold side part 26 or 28.
  • the design described guarantees that that the cores 32 and 34, provided that they are properly adjusted by simply extending the respective associated Lifting device 36 and 38 very precisely in their intended position get inside the associated mold 30. If it must be expected that the tensioner 40 exerted clamping force the mold side parts 26 and 28 noteworthy deformed, the lifting devices 36 and 38, each wear one of the cores 32 and 34, parallel to the longitudinal direction B floating on the frame 10 and supported by spring assemblies normally be held in a middle position. Alternatively can the cores 32 and 34 with respect to their lifting device 36th and 38 arranged in the longitudinal direction B floating and also be centered by a spring arrangement.
  • the die casting then takes place in the usual way, by the mold cavities of the molds 30 with ceramic Slurry filled and after a certain service life of excess slip can be emptied.
  • the tensioning device 40 is depressurized and with the height adjustment device 48 from that in FIGS. 1 and 2 pictured working position in a rest position between the upper side members 16 raised.
  • the molds 30 opened with a sliding device 50 the following is described:
  • a crankshaft 52 belongs to the displacement device 50 a stationary vertical axis of rotation D rotatably mounted on the frame 10 and from a drive 54, e.g. a hydraulic motor, can be rotated back and forth by approximately 180 °.
  • a double crank 56 is attached, at the ends of each Connecting rod 58 is articulated.
  • On each of the two molding carriages 22 is a two-armed lever 60 about a vertical pivot axis E. pivoted. These two levers 60 are each with one of the two connecting rods 58 and, opposite this, each with one Bolt 62, articulated.
  • Each of the two bolts 62 extends itself by an annular stop 64 on associated molding carriage 22 and by a helical Compression spring 66 through.
  • Each of the two compression springs 66 is between the associated stop 64 and one on the associated Bolt 62 adjustable head 68, for example a screwed-on nut that is secured against loosening, clamped. This way is on each of the two Molding car 22 a spring force accumulator 70 is formed.
  • a cross conveyor 72 belongs to each removal device two parallel, horizontally arranged transversely to the longitudinal direction B.
  • endless conveyor belts 74 are on one in theirs Transversely movable cross slide 76 mounted in the longitudinal direction, which in turn on a longitudinal slide adjustable in the longitudinal direction B. 78 is performed.
  • the longitudinal slide 78 is on one height-adjustable carriage 80 led, which in turn on an in turn adjustable longitudinal carriage B. is led.
  • the two cross conveyors 72 are in position brought according to Fig. 5b. Then their cross slides 76 together with the pallet F lying on the conveyor belts 74 and on it standing article A transverse to the longitudinal direction B from the frame 10 pushed out and lowered onto a common longitudinal conveyor 84, which is a roller conveyor in the example shown, of which two rollers for each cross conveyor 72 through recesses 86 are replaced so that the two cross conveyors 72 shown in FIG. 5a can be lowered so far that the two pallets F of the conveyor belts 74 are released and on the longitudinal conveyor 84 can be moved.
  • a common longitudinal conveyor 84 which is a roller conveyor in the example shown, of which two rollers for each cross conveyor 72 through recesses 86 are replaced so that the two cross conveyors 72 shown in FIG. 5a can be lowered so far that the two pallets F of the conveyor belts 74 are released and on the longitudinal conveyor 84 can be moved.

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)
  • Mold Materials And Core Materials (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
EP98101200A 1997-06-13 1998-01-23 Installation pour le coulage sous pression d'articles en céramique Ceased EP0884151A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19725107 1997-06-13
DE1997125107 DE19725107C1 (de) 1997-06-13 1997-06-13 Anlage zum Druckgießen keramischer Artikel

Publications (1)

Publication Number Publication Date
EP0884151A1 true EP0884151A1 (fr) 1998-12-16

Family

ID=7832440

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98101200A Ceased EP0884151A1 (fr) 1997-06-13 1998-01-23 Installation pour le coulage sous pression d'articles en céramique

Country Status (2)

Country Link
EP (1) EP0884151A1 (fr)
DE (2) DE19725107C1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110682408A (zh) * 2019-09-30 2020-01-14 唐山森兰瓷科技有限公司 陶瓷马桶注浆成型生产线
IT202100010322A1 (it) * 2021-04-23 2022-10-23 Paolo PALOZZI Struttura di trasferimento di stampi per un apparato di colaggio

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1294441B1 (it) 1997-06-17 1999-03-24 Sacmi Impianto per il colaggio in pressione di articoli sanitari
DE19745232C1 (de) * 1997-10-13 1998-12-24 Thuringia Netzsch Feinkeramik Anlage zum Druckgießen keramischer Artikel
DE19935595A1 (de) * 1999-08-02 2001-02-08 Dorst Masch & Anlagen Mehrachsige Druckgußmaschine mit Schwenkachse
US6428643B1 (en) * 1999-11-19 2002-08-06 Kohler Co. Method and apparatus for casting a plumbing fixture
TR201812853A2 (tr) * 2018-09-07 2018-09-21 Genesis Teknolojik Ueruenler Sanayi Ve Ticaret A S İki̇ parçali vi̇tri̇fi̇ye ürünü döküm maki̇nesi̇

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4206279C1 (fr) * 1992-02-28 1993-04-22 Erich Netzsch Gmbh & Co Holding Kg, 8672 Selb, De
DE19520234C1 (de) * 1995-06-01 1996-07-18 Netzsch Erich Holding Anlage zum Druckgießen keramischer Artikel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4206279C1 (fr) * 1992-02-28 1993-04-22 Erich Netzsch Gmbh & Co Holding Kg, 8672 Selb, De
DE19520234C1 (de) * 1995-06-01 1996-07-18 Netzsch Erich Holding Anlage zum Druckgießen keramischer Artikel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110682408A (zh) * 2019-09-30 2020-01-14 唐山森兰瓷科技有限公司 陶瓷马桶注浆成型生产线
IT202100010322A1 (it) * 2021-04-23 2022-10-23 Paolo PALOZZI Struttura di trasferimento di stampi per un apparato di colaggio

Also Published As

Publication number Publication date
DE19725107C1 (de) 1998-10-22
DE29801197U1 (de) 1998-04-16

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