EP0005026B1 - Installation for casting ceramic sanitaryware articles - Google Patents
Installation for casting ceramic sanitaryware articles Download PDFInfo
- Publication number
- EP0005026B1 EP0005026B1 EP19790300593 EP79300593A EP0005026B1 EP 0005026 B1 EP0005026 B1 EP 0005026B1 EP 19790300593 EP19790300593 EP 19790300593 EP 79300593 A EP79300593 A EP 79300593A EP 0005026 B1 EP0005026 B1 EP 0005026B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mould
- installation
- parts
- casting
- forming
- 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
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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
Definitions
- This invention relates to an installation for casting from ceramic material in slip form articles of sanitaryware, in which a plurality of mould units are arranged in a generally horizontal line on a support structure. Casting in such installations is known as battery or bank casting.
- moulds for casting cistern tanks are made of two parts which, relative to the upright position of a cistern tank, comprise a container part which shapes the exterior of the side walls and bottom wall of the cistern tank, and a top part which closes the mould cavity, the two parts being separable at a horizontal parting plane by relative movement in a vertical direction.
- the case piece is removed from the container part by movement in a vertical direction unless the mould is turned.
- the top part may have a core which projects down into the container part, for solid casting of a cistern tank, or the top part may simply be a closure member and the container part may include a drain aperture for drain casting of a cistern tank.
- moulds for casting cistern tanks are adapted for use on a horizontal line by dividing the mould vertically into two side parts.
- an installation for casting from ceramic material in slip form articles of sanitaryware having a plurality of mould units arranged in a generally horizontal line on a support structure, each mould unit including at least two side mould parts which define a casting cavity and which are adapted to be opened and closed by relative movement in a horizontal direction longitudinally of the line of mould units, each side mould part being connected in back-to-back relation to the adjacent side mould part of the next adjacent mould unit in the line, in which the two side mould parts of each mould define a casting cavity for casting a cistern tank for a water closet suite, one side mould part having a substantially vertical cavity surface for forming the back wall of the cistern tank and the other side part being substantially channel-shaped in plan and having substantially vertical cavity surfaces for forming the side walls and front wall of the cistern tank, one of the side parts having an integral base for forming the bottom wall of the cistern tank.
- the base for forming the bottom wall of the cistern tank is preferably provided on the side mould part having the vertical cavity surface for forming the back wall of the tank, and there is also provided a core part which is adapted to be moved in a vertical direction into the side parts or so as to be spaced above them.
- the base for forming the bottom wall of the cistern tank is preferably provided on the side mould part which is channel-shaped in plan, and either a separate mould cover part is provided or the other side mould part has an integral cover part.
- Figures 1 to 3 show an embodiment for solid casting of cistern tanks in a line or bank of fifty or more mould units arranged in a horizontal line on a support structure in the form of two rails 7 extending longitudinally of the line.
- Each mould unit 1 consists of three main mould parts: two side parts 2 and 3 and a core part 4.
- the side parts 2 and 3 are supported on carriers 8 fitted with rollers 9 so that they can be moved easily on the rails 7 in a longitudinal direction of the line.
- the side parts 2 each comprise an upstanding part 11 having a surface 12 which shapes the external surface of the back wall of the tank and a base part 13 which forms the bottom of the tank.
- the side parts 3 each comprise upstanding mould walls 15, 16 and 17 which form a channel shape as viewed in plan, the inside faces of which form the external surfaces of the side and front walls of the tank.
- Each pair of side parts 2 and 3 of the same mould unit 1 can be brought together to define the casting cavity, the lower side edges 18 and 19 being inclined to the horizontal to allow the parts to be separated directly by movement in a horizontal direction without the mould parts scraping against each other.
- each side part 2 is connected rigidly in back-to-back relation with the side part 3 of the next adjacent mould unit in the line.
- the core part 4 for each mould unit comprises a core 20 depending from a rim 21 which when the mould unit is assembled rests on the upper edges of the side parts 2 and 3 which lie in a common plane.
- the core part 4 is adapted to be lifted vertically above the line during emptying or lowered so that the core 20 is located between the side parts 2 and 3 in the assembled condition of each mould unit.
- the mould units 1 of the entire line are assembled by closing up the side parts 2 and 3 and lowering the core parts.
- the line of mould units 1 is then clamped longitudinally by an overall clamping arrangement at each end of the line.
- the core parts 4 may be held by clamping or other hold-down means, which may be common to all the mould units, or the core parts 4 may be sufficiently heavy simply to rest on the side parts 2 and 3 without risk of the core moving when the mould unit is filled with slip under pressure.
- mould units 1 are then filled with slip, the slip flowing from a slip supply tank under gravity into the casting cavity in each mould unit 1.
- the emptying procedure is as follows.
- the core part 4 of the first mould unit of the line is lifted by a suitable lifting means which is capable of traversing the entire line of mould units.
- the overall clamping of the side parts is then released and dealing with each mould unit in turn, the side parts are separated by moving side part 3 away from side part 2 on which the tank rests on the base part 13.
- the tank 26 (see Figure 3) is then removed using suitable tongs or similar tools and placed on a rack at one side.
- the emptied side part 2 is then pulled along the track which movement simultaneously pulls the side part 3 of the next mould unit to open that mould unit.
- Figure 4 shows a mould unit for drain casting of cistern tanks. Only one mould unit is shown but a plurality of such mould units will be provided in a line, each side mould part being joined in back-to-back relation with the adjacent side mould part of the next mould unit, as for the example of Figures 1 to 3.
- the mould unit comprise a first side mould part 40 having a substantially vertical cavity surface 41 for forming the back wall of the tank and an integral top wall for closing the top of the tank casting cavity, and a second side mould part 45 which is substantially channel-shaped in plan having substantially vertical cavity surfaces 46, 47 and 48 for forming the side walls and the front wall of the tank and an integral base 49 for forming the bottom wall of the tank.
- the mould units are assembled and the cavities filled with slip under pressure. After allowing the appropriate casting time to elapse, a lower aperture 5 provided in the base 49 of each mould is opened and the surplus slip from the inside of the tank will drain out leaving the green drain-cast tanks in the moulds.
- the mould units are then opened, in turn, by horizontal movement of the side parts along the line and each tank is removed from the respective mould part 45 and put to one side, this operation being repeated along the complete line of moulds.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Dispersion Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Producing Shaped Articles From Materials (AREA)
Description
- This invention relates to an installation for casting from ceramic material in slip form articles of sanitaryware, in which a plurality of mould units are arranged in a generally horizontal line on a support structure. Casting in such installations is known as battery or bank casting.
- It has been proposed to cast certain articles of sanitaryware in a line of moulds which are arranged on a support structure so as to permit movement of the mould parts in a direction longitudinally of the line; for example, British patent specification No. 1,140,282 shows such an installation for casting wash hand basins; and German Offenlegungsschrift 24 44 551 shows such an installation for casting bidets in which each mould includes two side wall parts arranged for horizontal movement on a support structure for opening and closing the mould, a lower core also movably arranged on the support structure, and an upper core which is moved vertically, the side wall parts of each mould being rigidly connected respectively with the adjacent side wall parts of the next casting moulds.
- Hitherto it has not been thought possible to cast cistern tanks for water closet suites in an installation of this kind because moulds for casting cistern tanks conventionally involve separation of the mould parts only in a vertical direction. Thus, normally, moulds for casting cistern tanks are made of two parts which, relative to the upright position of a cistern tank, comprise a container part which shapes the exterior of the side walls and bottom wall of the cistern tank, and a top part which closes the mould cavity, the two parts being separable at a horizontal parting plane by relative movement in a vertical direction. The case piece is removed from the container part by movement in a vertical direction unless the mould is turned. The top part may have a core which projects down into the container part, for solid casting of a cistern tank, or the top part may simply be a closure member and the container part may include a drain aperture for drain casting of a cistern tank.
- Such moulds are unsuitable for use on a horizontal line of moulds because of the vertical separation of the mould parts and the vertical emptying. For the present invention, moulds for casting cistern tanks are adapted for use on a horizontal line by dividing the mould vertically into two side parts.
- According to the present invention there is provided an installation for casting from ceramic material in slip form articles of sanitaryware, having a plurality of mould units arranged in a generally horizontal line on a support structure, each mould unit including at least two side mould parts which define a casting cavity and which are adapted to be opened and closed by relative movement in a horizontal direction longitudinally of the line of mould units, each side mould part being connected in back-to-back relation to the adjacent side mould part of the next adjacent mould unit in the line, in which the two side mould parts of each mould define a casting cavity for casting a cistern tank for a water closet suite, one side mould part having a substantially vertical cavity surface for forming the back wall of the cistern tank and the other side part being substantially channel-shaped in plan and having substantially vertical cavity surfaces for forming the side walls and front wall of the cistern tank, one of the side parts having an integral base for forming the bottom wall of the cistern tank.
- Such an installation achieves the benefits of mass production with bank casting of up to fifty or more mould units in a line, which has hitherto not been possible for casting cistern tanks.
- For solid casting of cistern tanks the base for forming the bottom wall of the cistern tank is preferably provided on the side mould part having the vertical cavity surface for forming the back wall of the tank, and there is also provided a core part which is adapted to be moved in a vertical direction into the side parts or so as to be spaced above them.
- For drain casting of cistern tanks the base for forming the bottom wall of the cistern tank is preferably provided on the side mould part which is channel-shaped in plan, and either a separate mould cover part is provided or the other side mould part has an integral cover part.
- The invention may be carried into practice in many ways but certain specific embodiments will now be described by way of example only with reference to the accompanying drawings, in which:-
- Figure 1 is a perspective view of part of a line of mould units for solid casting of cistern tanks;
- Figure 2 is a side view of the line of Figure 1;
- Figure 3 is a further perspective view of the line of mould units of Figures 1 and 2 during emptying; and
- Figure 4 is a perspective view of one of a line of mould units for drain casting a cistern tank.
- Figures 1 to 3 show an embodiment for solid casting of cistern tanks in a line or bank of fifty or more mould units arranged in a horizontal line on a support structure in the form of two
rails 7 extending longitudinally of the line. - Each
mould unit 1 consists of three main mould parts: twoside parts core part 4. Theside parts carriers 8 fitted withrollers 9 so that they can be moved easily on therails 7 in a longitudinal direction of the line. Theside parts 2 each comprise anupstanding part 11 having asurface 12 which shapes the external surface of the back wall of the tank and abase part 13 which forms the bottom of the tank. Theside parts 3 each compriseupstanding mould walls - Each pair of
side parts same mould unit 1 can be brought together to define the casting cavity, thelower side edges - In the line of mould units, each
side part 2 is connected rigidly in back-to-back relation with theside part 3 of the next adjacent mould unit in the line. - The
core part 4 for each mould unit comprises acore 20 depending from arim 21 which when the mould unit is assembled rests on the upper edges of theside parts core part 4 is adapted to be lifted vertically above the line during emptying or lowered so that thecore 20 is located between theside parts - In operation, the
mould units 1 of the entire line are assembled by closing up theside parts mould units 1 is then clamped longitudinally by an overall clamping arrangement at each end of the line. Thecore parts 4 may be held by clamping or other hold-down means, which may be common to all the mould units, or thecore parts 4 may be sufficiently heavy simply to rest on theside parts - The
mould units 1 are then filled with slip, the slip flowing from a slip supply tank under gravity into the casting cavity in eachmould unit 1. - After a suitable casting time has elapsed, during which time moisture is absorbed by the plaster of the moulds, the moulds are opened.
- The emptying procedure is as follows. The
core part 4 of the first mould unit of the line is lifted by a suitable lifting means which is capable of traversing the entire line of mould units. The overall clamping of the side parts is then released and dealing with each mould unit in turn, the side parts are separated by movingside part 3 away fromside part 2 on which the tank rests on thebase part 13. The tank 26 (see Figure 3) is then removed using suitable tongs or similar tools and placed on a rack at one side. The emptiedside part 2 is then pulled along the track which movement simultaneously pulls theside part 3 of the next mould unit to open that mould unit. - It will be appreciated that the particular design of the
side parts - Figure 4 shows a mould unit for drain casting of cistern tanks. Only one mould unit is shown but a plurality of such mould units will be provided in a line, each side mould part being joined in back-to-back relation with the adjacent side mould part of the next mould unit, as for the example of Figures 1 to 3.
- The mould unit comprise a first
side mould part 40 having a substantiallyvertical cavity surface 41 for forming the back wall of the tank and an integral top wall for closing the top of the tank casting cavity, and a secondside mould part 45 which is substantially channel-shaped in plan having substantiallyvertical cavity surfaces integral base 49 for forming the bottom wall of the tank. - For casting, the mould units are assembled and the cavities filled with slip under pressure. After allowing the appropriate casting time to elapse, a lower aperture 5 provided in the
base 49 of each mould is opened and the surplus slip from the inside of the tank will drain out leaving the green drain-cast tanks in the moulds. The mould units are then opened, in turn, by horizontal movement of the side parts along the line and each tank is removed from therespective mould part 45 and put to one side, this operation being repeated along the complete line of moulds.
Claims (9)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1505378 | 1978-04-17 | ||
GB1505378A GB1604882A (en) | 1978-04-17 | 1978-04-17 | Casting installations |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0005026A1 EP0005026A1 (en) | 1979-10-31 |
EP0005026B1 true EP0005026B1 (en) | 1982-06-30 |
Family
ID=10052218
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19790300593 Expired EP0005026B1 (en) | 1978-04-17 | 1979-04-10 | Installation for casting ceramic sanitaryware articles |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0005026B1 (en) |
DE (1) | DE2963219D1 (en) |
ES (1) | ES479606A1 (en) |
GB (1) | GB1604882A (en) |
GR (1) | GR65662B (en) |
IE (1) | IE48235B1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1276660B1 (en) * | 1995-04-04 | 1997-11-03 | Siti Spa | PROCEDURE FOR THE FORMATION OF SANITARY WARE WITH A COMPLEX FORM USING A MOLD INCLUDING FOUR ELEMENTS IN POROUS RESIN |
GB2330109A (en) * | 1997-10-13 | 1999-04-14 | Porvair Plc | Casting machine |
CN109648684B (en) * | 2019-01-24 | 2021-02-23 | 湖南犀鸟陶瓷有限公司 | Advanced ceramic part injection molding die and injection molding method thereof |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2583842A (en) * | 1947-07-09 | 1952-01-29 | Eljer Company | Method and apparatus for casting ceramic articles |
GB1140282A (en) * | 1966-09-08 | 1969-01-15 | Ceramic Engineering Ltd | Method of casting vitreous china or other ceramic substances in slip form and apparatus for performing the method |
GB1391320A (en) * | 1972-12-07 | 1975-04-23 | Ideal Standard | Method and apparatus for filling casting moulds |
DE2444551C3 (en) * | 1974-09-18 | 1980-07-03 | Villeroy & Boch Keramische Werke Kg, 6642 Mettlach | Device for casting sanitary ceramic moldings and method of operating the device |
-
1978
- 1978-04-17 GB GB1505378A patent/GB1604882A/en not_active Expired
-
1979
- 1979-04-10 DE DE7979300593T patent/DE2963219D1/en not_active Expired
- 1979-04-10 EP EP19790300593 patent/EP0005026B1/en not_active Expired
- 1979-04-13 GR GR58887A patent/GR65662B/en unknown
- 1979-04-16 ES ES479606A patent/ES479606A1/en not_active Expired
- 1979-08-08 IE IE97679A patent/IE48235B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE2963219D1 (en) | 1982-08-19 |
ES479606A1 (en) | 1980-01-01 |
IE48235B1 (en) | 1984-11-14 |
GB1604882A (en) | 1981-12-16 |
EP0005026A1 (en) | 1979-10-31 |
GR65662B (en) | 1980-10-16 |
IE790976L (en) | 1979-10-17 |
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