EP1410887A2 - Vorrichtung zum Herstellen von dünnen Fliesen aus Zementschlamm - Google Patents

Vorrichtung zum Herstellen von dünnen Fliesen aus Zementschlamm Download PDF

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Publication number
EP1410887A2
EP1410887A2 EP03076343A EP03076343A EP1410887A2 EP 1410887 A2 EP1410887 A2 EP 1410887A2 EP 03076343 A EP03076343 A EP 03076343A EP 03076343 A EP03076343 A EP 03076343A EP 1410887 A2 EP1410887 A2 EP 1410887A2
Authority
EP
European Patent Office
Prior art keywords
channels
holes
liquid
mold
plate
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Withdrawn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
EP03076343A
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English (en)
French (fr)
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EP1410887A3 (de
Inventor
Alfredo Longinotti
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.)
Longinotti Meccanica SRL
Original Assignee
Longinotti Meccanica SRL
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 Longinotti Meccanica SRL filed Critical Longinotti Meccanica SRL
Publication of EP1410887A2 publication Critical patent/EP1410887A2/de
Publication of EP1410887A3 publication Critical patent/EP1410887A3/de
Withdrawn legal-status Critical Current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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/36—Linings or coatings, e.g. removable, absorbent linings, permanent anti-stick coatings; Linings becoming a non-permanent layer of the moulded article
    • B28B7/368—Absorbent linings
    • 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
    • B28B7/40—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material
    • B28B7/46—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material for humidifying or dehumidifying

Definitions

  • the invention relates to an apparatus that has been devised to manufacture thin tiles from cement paste by pressing it in the molds of turntable presses comprising one or more stations set up.
  • each mold comprises a bed that is stiffened by grids, and that filters and drains the liquid from the paste during pressing; the liquid is carried away through channeling for the disposal of the liquid; and on the bed is a peripheral seal for supporting the frame of the mold.
  • the invention has the purpose of improving the structure of the molds, particularly as concerns filtration, in order to produce satisfactory products. This and other objects and advantages will become clear in the following text.
  • the apparatus comprises a plate with a plurality of narrow channels for draining off the filtered liquid, said channels being connected to the liquid disposal channeling.
  • said narrow channels are divided into two series of channels, the channels of each series being parallel with each other and the channels of one series intersecting the channels of the other series.
  • Said narrow channels will be sufficiently deep and/or their base will be sloping and run out at the edge to permit easy disposal of the liquid, and also to simplify cleaning.
  • the plate can be machined with liquid disposal channeling on the underside, with a plurality of discharge holes interfering with said channeling and beginning in a seat on the upper side for a perforated lamina with holes interfering with said narrow channels and corresponding to said discharge holes; a seat being formed in said perforated lamina for a replaceable seal - of rubber or the like - designed to fit the frame of the mold.
  • a perforated lamina with holes interfering with said narrow channels and corresponding to said discharge holes
  • a seat being formed in said perforated lamina for a replaceable seal - of rubber or the like - designed to fit the frame of the mold.
  • To each of said discharge holes in the plate there may correspond four holes in the lamina.
  • a seat may be formed in the top of the plate to accommodate either the perforated lamina or, alternatively, a lamina with rubber, to prepare the mold for the production of conventional two-layer tiles.
  • the apparatus comprises a pressure block able to enter the frame of the mold with a small amount of play.
  • suction holes are formed around the perimeter of said block in the vicinity of the lower pressure face and connected to channeling leading to suction means, for the disposal of liquid collected between the frame and the block during pressing.
  • said suction means comprise at least one annular manifold into which said suction holes feed, and at least one pipe for creating from outside of the block a vacuum in said manifold.
  • a plurality of pipes can be distributed around said annular manifold to ensure an even vacuum throughout the annular manifold.
  • Said suction holes may be beveled at the outer end for complete suction of the liquid phase that collects between the frame and the block.
  • the bed of a mold - for presses constituting the apparatus as defined above - comprises a sturdy structure 1 supporting the bed of the mold for which the general reference is 3.
  • This bed 3 contains a grid of lengthwise ribs 3A stood edge-on on a flat base 3B that in turn stands on the structure 1; these ribs 3A define a series of lengthwise channels 5 in the bed 3.
  • Running between the lengthwise components or ribs 3A and above and through the channels 5 are bridge components 3C consisting of bars supported between the adjacent lengthwise components 3A to form a sturdy grid that forms part of the bed 3.
  • This grid 3A, 3C together with the inner perimeter of the bed 3 forms a seat 3E for a perforated lamina 9;
  • the bed 3 may take the form of a stainless steel plate with holes 11 made by machine in rows in two mutually perpendicular directions in positions such that the grid structure 3A, 3C corresponds to linear zones running between adjacent rows of holes 11.
  • the lamina 9 forms a stepped seat 13 for an easily replaceable rubber seal 15; on this seal 15 rests the bottom edge 17A of the frame 17 of the mold, when this is positioned on the bed 3. 18 is the block.
  • Laid over the plate 9 is the filter 19 which may be paired with a second filter 19 or may be layered, and which is interposed between the plate 9 and the frame 17.
  • the pressing block 301 passes down into the frame 17 to compress the fluid mass and expel a large percent of the liquid phase through the filter 19.
  • the upper surface of the plate 9 (on which the filter 19 rests) is formed into narrow channels 21 lying in one direction (Fig. 2) or two or more directions, as marked 21 and 23 in Fig. 4; the channels are laid out so as to interfere with the holes 11, where the water (with particles of cement) that has passed through the filter 19 is discharged.
  • the bed 3 contains passages 3P (see in particular Fig. 5) communicating with the channels 5, defined by the lengthwise components 3A, underneath the bridge components 3C. In this way the liquid collected by the channels 5 can be discharged via the passages 3P through discharge mouths 74 into a collecting manifold 75 for disposal.
  • Figs. 6-11 show a particularly efficient embodiment of a plate designed to replace the bed 3 of the version shown in Figs. 1-5.
  • the bed 3 is formed by a plate 103 machined to form edge-on ribs 103A defining channels 105, which are excavated mechanically as far as the perimeter of the two opposite sides of the plate 103; a base 103B - equivalent to the base 3B - rests on the structure 1; formed at one of the ends of the channels 105 are the passages 103P to allow the water to flow out toward the discharge 74 leading to the manifold 75.
  • a removable closure 103K can be provided at the opposite end from the passage 103P to allow easy cleaning of the channels 105.
  • the top of the plate 103 is machined to form the seat 103E for accommodating the perforated lamina such as 9 with holes 11 and with channels 21 and optionally 23.
  • the channels 105 have been machined, and hence after the ribs 103A have been defined, through holes 103F are drilled between the seat 103E and the channels 105 at intervals from each other and lined up to correspond to the channels 105 with which they interfere, as can be seen clearly in Figs. 12-16.
  • the holes 11 of said lamina 9 will each correspond - at least partially - with the holes 103F, in such a way as to ensure that the filtered water is discharged directly through the holes 103F into the channels 105.
  • each hole 103F will connect with four holes 11 in the lamina 9 (see Fig. 11).
  • the liquid filtered through the filter 19 drains along the channels 21 and, if provided, 23, and there is therefore a very steady direct outflow of the liquid passing through the filter 19 toward the discharge point, with no significant variations in the path obstructed to a greater or lesser degree along the filtering surface.
  • the filter interposed between the plate 3 or 103 and the frame 17 may be composed of an ordinary fine-mesh fabric filter 19A and a large-mesh fabric underfilter 19B in order to bear the stresses of the pressure at the interspaces defined by the narrow channels 21 and, where provided, 23, and by the holes 11.
  • FIG. 12 An alternative embodiment of the plate 103 is shown in Figs. 12 and 13.
  • a large plate 203 is machined to form a peripheral seat or channel 203E for an easily replaceable seal 215 equivalent to the seal 15.
  • the plate 203 replaces the plate 3 or 103 and also the perforated lamina 9 because said plate 203 contains at least one and preferably two series of deep but narrow mutually perpendicular channels 205A and 205B extending to the edges of the plate, in such a way as also to form water discharge channels.
  • the collecting means will be formed by an annular manifold which collects the water from all four sides of the plate from the open ends of the channels 105A and 105B.
  • the channels 205A and 205B can all be of the same depth but it is also possible for the channels of one series to be of a different depth to the channels of the other series. In fact the bottoms of the channels of at least one series may be sloping to promote the discharge of the water toward one side of the plate 203 or to two preferred sides.
  • a filtration bed as described above can also be modified quickly by replacing certain of its parts, in order to produce a structure for the pressing of traditional two-layer tiles, simply by replacing the plate 9 with the holes 11 in the seat 3E, as can be seen in Fig. 14.
  • the plate 9 with the holes 11 is replaced with a strong lamina 309A to which is applied a liner 309B of vulcanized rubber on the lamina 309A and advantageously also forming a sealing edge 309C around the inside of the wall of the seat such as 3E or 103E.
  • the vulcanized rubber 309B supports the bottom edge of the frame 17. This gives a mold for two-layer tiles, i.e.
  • the frame 17, which rests on and is pressed onto the seal 15 of the bed 3, is designed to receive the block 301 with a small amount of play.
  • the block 301 can be made with an underplate 303 attached to the underside of the block 301 to form the surface that contacts and compresses the fluid mortar B designed to form the thin tile; the underplate 303 is very slightly smaller than the internal dimensions of the frame or ring 17 while the block 301 itself can be slightly smaller.
  • a liner 305 of rubber or other material which may have indentations or reliefs to give particular markings on the surface of the tile formed from the fluid mortar B.
  • Holes 307 are formed in the underplate 303 in a perpendicular arrangement to the perimeter of this underplate and with outward beveling 307A that almost reaches the active lower surface of the underplate 303, 305.
  • the holes 307 are distributed in any suitable uniform way around the perimeter of the underplate 303 and connect at the inward end with an annular manifold which may take the form of a channel 309 also cut into the underplate 303 and which is closed by the attachment of the underplate to the underside of the block 301, thereby forming an annular manifold.
  • Two annular seals may be fitted between the underplate 303 and the block 301, inside and outside of the manifold 309 to ensure leaktightness between the underplate 303 and the block 301, as marked at 310 and 311.
  • One or more holes 313 are formed in the block 301 and may be distributed in some suitable way around the manifold 309: they are combined by connectors 315 to hoses 317 connected to a vacuum source.
  • the arrangement of the holes 313 is such as to produce an approximately uniform vacuum both in the manifold 309 and in the holes 307, which are distributed around the perimeter of the liner of the underplate 303.
  • branches 309A of the manifold 309 can be provided at the corners of the underplate 303 so as to ensure suction is also provided at holes 307X located in the corner regions of the underplate 303.
  • the holes 313 can also be made to connect with these branches 309A and can therefore be positioned in the comer regions of the underplate 303.
  • the ability to remove the liquid from the gap S by suction both during pressing and more particularly at the conclusion of pressing and before the block is lifted away, is established.
  • the liquid can at any rate be disposed of and prevented, after collecting in the gap S, from draining back down onto the pressed tile around its perimeter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Filtration Of Liquid (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
EP03076343A 1997-07-24 1998-05-15 Vorrichtung zum Herstellen von dünnen Fliesen aus Zementschlamm Withdrawn EP1410887A3 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITFI970178 1997-07-24
IT97FI000178 IT1294828B1 (it) 1997-07-24 1997-07-24 Apparecchiatura per produrre mattonelle sottili di impasto cementizio
EP19980830295 EP0893219B1 (de) 1997-07-24 1998-05-15 Vorrichtung zum Herstellen von dünnen Fliesen aus Zementschlamm

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP19980830295 Division EP0893219B1 (de) 1997-07-24 1998-05-15 Vorrichtung zum Herstellen von dünnen Fliesen aus Zementschlamm

Publications (2)

Publication Number Publication Date
EP1410887A2 true EP1410887A2 (de) 2004-04-21
EP1410887A3 EP1410887A3 (de) 2004-06-30

Family

ID=11352217

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19980830295 Expired - Lifetime EP0893219B1 (de) 1997-07-24 1998-05-15 Vorrichtung zum Herstellen von dünnen Fliesen aus Zementschlamm
EP03076343A Withdrawn EP1410887A3 (de) 1997-07-24 1998-05-15 Vorrichtung zum Herstellen von dünnen Fliesen aus Zementschlamm

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP19980830295 Expired - Lifetime EP0893219B1 (de) 1997-07-24 1998-05-15 Vorrichtung zum Herstellen von dünnen Fliesen aus Zementschlamm

Country Status (4)

Country Link
EP (2) EP0893219B1 (de)
DE (1) DE69816376T2 (de)
ES (1) ES2202787T3 (de)
IT (1) IT1294828B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005007909A1 (de) * 2005-02-08 2006-08-10 Rennebeck, Klaus, Dr. Vorrichtung zur Herstellung von Formteilen aus Keramik
WO2011003272A1 (zh) * 2009-07-07 2011-01-13 北京盛诺威科技发展有限公司 绞胎制品和陶瓷制品静压成型机

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1320078B1 (it) * 2000-10-25 2003-11-18 Ugo Giannelli Apparecchiatura per produrre mattonelle da impasti cementizi.
ITFI20010042A1 (it) * 2001-03-16 2002-09-16 Longinotti Meccanica S R L Attrezzatura per evitare sfaldature nello spessore di mattonelle monostrato in cemento,quando si utilizzano per l'impasto micrograniglie o p
GB2504647A (en) * 2012-01-31 2014-02-12 Helvetic Filter Company Gmbh Removably Retaining a Filter on a Moulding Former or Insert
GB2504751B (en) * 2012-08-09 2016-02-03 Eco Filters Ltd Filter assembly
GB2504848B (en) * 2012-08-09 2015-12-30 Eco Filters Ltd Filter assembly
ITFI20130034A1 (it) * 2013-02-21 2014-08-22 Longinotti Group S R L Apparato per la produzione di mattonelle monostrato
CN114770697B (zh) * 2022-05-07 2023-04-21 四川建筑职业技术学院 一种建筑构件加工多功能夯实装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2117398A5 (de) * 1970-12-04 1972-07-21 Longinotti Enrico
US4053268A (en) * 1974-12-27 1977-10-11 Kabushiki Kaisha Osaka Packing Seizosho Apparatus for molding a slurry of calcium silicate crystals
DE3311965A1 (de) * 1982-07-06 1984-03-08 Aktiebolaget S:t Eriks Betong, 755 90 Uppsala Verfahren und vorrichtung zur herstellung von betonplatten
JPH07124921A (ja) * 1993-11-02 1995-05-16 Sekisui Chem Co Ltd 水硬性材料の成形装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3980414A (en) * 1975-09-29 1976-09-14 Owens-Corning Fiberglas Corporation Core and pressing head of mold box assembly
GB1592953A (en) * 1977-10-27 1981-07-15 St James Tile Co Ltd Methods of producing moulded shapes such as tiles
US4856754A (en) * 1987-11-06 1989-08-15 Kabushiki Kaisha Kumagaigumi Concrete form shuttering having double woven fabric covering
GB9309066D0 (en) * 1993-05-01 1993-06-16 Green Barry E Filter fabric
SE501352C2 (sv) * 1993-06-18 1995-01-23 Machinator Ab Filteranordning
US5824347A (en) * 1996-09-27 1998-10-20 E. I. Du Pont De Nemours And Company Concrete form liner

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2117398A5 (de) * 1970-12-04 1972-07-21 Longinotti Enrico
US4053268A (en) * 1974-12-27 1977-10-11 Kabushiki Kaisha Osaka Packing Seizosho Apparatus for molding a slurry of calcium silicate crystals
DE3311965A1 (de) * 1982-07-06 1984-03-08 Aktiebolaget S:t Eriks Betong, 755 90 Uppsala Verfahren und vorrichtung zur herstellung von betonplatten
JPH07124921A (ja) * 1993-11-02 1995-05-16 Sekisui Chem Co Ltd 水硬性材料の成形装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 08, 29 September 1995 (1995-09-29) & JP 07 124921 A (SEKISUI CHEM CO LTD;OTHERS: 01), 16 May 1995 (1995-05-16) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005007909A1 (de) * 2005-02-08 2006-08-10 Rennebeck, Klaus, Dr. Vorrichtung zur Herstellung von Formteilen aus Keramik
WO2011003272A1 (zh) * 2009-07-07 2011-01-13 北京盛诺威科技发展有限公司 绞胎制品和陶瓷制品静压成型机

Also Published As

Publication number Publication date
DE69816376D1 (de) 2003-08-21
ITFI970178A1 (it) 1999-01-24
ES2202787T3 (es) 2004-04-01
IT1294828B1 (it) 1999-04-15
EP0893219A1 (de) 1999-01-27
EP1410887A3 (de) 2004-06-30
DE69816376T2 (de) 2004-04-15
EP0893219B1 (de) 2003-07-16

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