EP2882510B1 - Trägeranordnung - Google Patents

Trägeranordnung Download PDF

Info

Publication number
EP2882510B1
EP2882510B1 EP13762201.5A EP13762201A EP2882510B1 EP 2882510 B1 EP2882510 B1 EP 2882510B1 EP 13762201 A EP13762201 A EP 13762201A EP 2882510 B1 EP2882510 B1 EP 2882510B1
Authority
EP
European Patent Office
Prior art keywords
carrier
insert
frame
support
filter
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
EP13762201.5A
Other languages
English (en)
French (fr)
Other versions
EP2882510A1 (de
Inventor
Terence Butlin
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.)
Eco Filters Ltd
Original Assignee
Eco Filters Ltd
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
Priority claimed from GB1214241.0A external-priority patent/GB2504751B/en
Application filed by Eco Filters Ltd filed Critical Eco Filters Ltd
Publication of EP2882510A1 publication Critical patent/EP2882510A1/de
Application granted granted Critical
Publication of EP2882510B1 publication Critical patent/EP2882510B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B28B7/40—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
    • 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
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
    • B28B3/021—Ram heads of special form
    • 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

Definitions

  • This invention relates to a carrier assembly for use in a cementitious press mould such as a wet concrete, hermetic or semi-dry mix press mould.
  • a known cementitious press mould comprises a mould cavity having a closed base and side walls. A metered amount of cementitious mix is placed into the mould cavity and a movable press head is then moved towards the closed base to apply a high compressive pressure on to the cementitious mix.
  • the press head comprises a die head having a head plate that comes into contact with the mixture contained in the mould.
  • the head plate is of a shape and size that corresponds to the cross-sectional shape and size of the mould cavity.
  • the base of the press mould comprises a bottom former that has a shape and size that corresponds to the cross-sectional shape and size of the mould cavity.
  • a wet concrete mix is compacted, it is shaped to the shape of the mould, and excess water is squeezed out of the wet mixture.
  • a result of these actions is the formation of a moulded product, such as a paving slab or kerb, for example.
  • a cementitious mix designed specifically for the press mould is placed in the mould cavity.
  • the cementitious mix usually consists of a face and back mix.
  • the face mix normally comprises expensive aggregates with a high cement content and is generally very wet when discharged into the mould.
  • the back mix is a weak semi-dry cement mix, and is placed on top of the face mix within the cavity.
  • a hermetic press mould comprises a sealed base, cement enriched water from the face mix is forced through the back mix when under pressure from the press head.
  • a semi dry mix having a higher cement content, and slightly wetter consistency than the back mix of a hermetic press mould is placed in the mould cavity.
  • the water/cement ratio of the mix is such that on compaction from either pressure or vibration, the mix forms a solid mass to the required strength.
  • both the bottom former and the die head may each be described as carriers.
  • one or both carriers may comprise a carrier plate.
  • the carrier plate comprises the bottom former
  • the plate may comprise perforations arranged in a particular pattern in order to produce a variety of patterns on products formed by the press mould.
  • the pattern produced on a product is produced by the filter. This is because it is not possible to change the pattern of the perforations formed on the bottom former, since the bottom former is a permanent part of the press mould.
  • the only way to change the pattern on a product formed by the press mould is therefore to change filters so that the pattern is produced on the product by means of the filter, rather than the former.
  • US 2 638 655 A discloses a carrier assembly for a cementitious press mould according to the preamble of claim 1.
  • a carrier assembly for a cementitious press mould comprising a carrier support and a carrier insert comprising a first surface and an opposite second surface removeably engageable with the carrier support
  • the carrier support comprises a carrier frame comprising a support ledge extending around the carrier frame and providing a support surface adapted to receive and support the carrier insert
  • the carrier insert comprises a plurality of perforations and is adapted to engage with, and be supported by the carrier frame, characterised in that the support ledge comprises a plurality of drainage apertures.
  • the carrier insert may have a pattern formed on its surface.
  • the pattern may be formed from one or more of the plurality of perforations, or may be formed by indentions or other apertures for example.
  • the drainage apertures may thus form part of the pattern, or they may comprise smaller holes that are masked by the pattern.
  • the carrier assembly may comprise a bottom former.
  • the carrier support comprises a bottom former support
  • the carrier insert comprises a bottom former insert.
  • the carrier support comprises a frame which supports the carrier insert
  • the carrier insert makes contact with the carrier support around edge portions of the carrier insert only. This means that by suitably dimensioning the frame relative to the carrier insert, most of a central portion of the carrier insert will be open, and not in contact with the carrier support.
  • the present invention thus facilitates drainage of fluids during the moulding process.
  • the carrier insert and the carrier support may be formed from any suitable material such as steel, wood or a plastics material. Any material that is capable of withstanding the forces exerted during the pressing process could be used.
  • the carrier frame may comprise a plurality of corner portions.
  • the carrier frame may be of any convenient shape, and may, for example comprise four corner portions.
  • the corner portions may be detachable from the carrier frame. This means that the corner portions may be machined separately from the remainder of the frame. This in turn means that it is possible to produce substantially square corners.
  • the carrier frame may have some other shape, not having any corner portions.
  • the carrier frame may be substantially oval or circular in shape.
  • the carrier frame may be formed from a single piece of material, although in other embodiments it may be formed from a plurality of frame components.
  • the carrier frame may be more economical to form the carrier frame from a plurality of the frame components since it is often possible to use less material if the carrier frame is formed in this way. This is in contrast to when the carrier frame is formed from a single piece of material, when it may be necessary to machine the frame from a large piece of material, most of which will not be used for the frame. This can wasteful and time consuming.
  • the frame components may be joined together by any suitable means, for example by means of adhesive, through the use of nails, screws or bolts, or means of welding or bonding, for example.
  • the carrier insert is adapted to make contact with the ledge along a peripheral portion of the second surface thereof.
  • the additional support member comprises a bar extending across the carrier frame.
  • the carrier support may comprise a first surface and second opposite surface.
  • the carrier insert may comprise a recess extending around the second surface to form a recessed carrier insert.
  • the recessed carrier insert is engageable with the ledge of the carrier support such that the recess of the insert engages with the ledge.
  • This means that the insert is held in position such that the second surface is substantially flush with the second surface of the carrier support.
  • the carrier support and the carrier insert may be positioned at the same level relative to one another during use.
  • the first surface of the carrier insert will extend above the carrier support. This means that, in use, a filter assembly can be secured around the carrier insert which will stand proud of the carrier support.
  • the carrier insert may comprise a plurality of channels extending at least partially along edges of the carrier insert.
  • a filter assembly comprising a carrier assembly according to the first aspect of the present invention further comprising a filter assembly engageable with the carrier assembly.
  • Any suitable filter assembly may be used with a carrier assembly of the present invention.
  • the filter assembly described therein comprises a filter comprising a filter sheet mounted on a filter frame. Such a filter assembly may be directly engageable with the carrier support of the carrier assembly according to embodiments of the invention.
  • the filter sheet and filter frame may be manufactured to appropriate dimensions to fit a particular carrier support.
  • the filter sheet may be attached to the filter frame by any convenient means such as by stitching, adhering, bonding through the use of ultrasonic techniques etc.
  • the edges of the filter sheet may be folded around the filter frame and then glued to an underneath surface of the filter frame, for example.
  • the filter frame may be made from any suitable material, such as a plastics material.
  • the filter frame may be formed from polypropylene, fibreglass, carbon fibre, metal or wood, for example.
  • the filter frame may be formed from a single piece of material. Alternatively it may be formed from a plurality of frame sections each of which frame sections is engageable with one or more other frame sections to form the filter frame.
  • the carrier insert may serve as a carrier engagement portion engaging with the filter assembly and holding the filter in place.
  • the filter frame may be shaped to have an interference fit with the carrier insert.
  • a clip or other retainer may be used to hold the filter frame against the carrier insert.
  • a filter assembly according to an embodiment of the invention is designated generally by the reference numeral 2.
  • the filter assembly comprises a carrier assembly 4 and a filter 6.
  • the carrier assembly comprises a carrier support 8 comprising a carrier frame 10.
  • the carrier frame 10 comprises a support ledge 12 extending around the carrier frame and providing a support surface.
  • the ledge has a plurality of drainage apertures 14 formed therein.
  • the drainage apertures 14 are through holes that allow fluid to drain away from the carrier assembly during use.
  • the carrier frame 10 comprises detachable corner portions 16.
  • the corner portions 16 are manufactured separately from the carrier frame 10. This enables the corners to be accurately machined avoids having rounded portions at the corners of the frame.
  • the carrier assembly further comprises a carrier insert 18 shaped to fit within the carrier frame 10 such that the carrier insert 18 is supported on the ledge 12.
  • the carrier insert 18 is formed with the drainage holes 20 and is also embossed with a pattern that will be transferred to a product during use of the mould.
  • the drainage holes 20 may either form part of the pattern or may be formed from apertures that are smaller than those used in the pattern and therefore hidden by the pattern. In this embodiment the drainage holes are part of the pattern.
  • the carrier insert is shaped to engage with the ledge 12 such that it extends above, and stands proud of the carrier frame 10.
  • the filter assembly 2 comprises a filter sheet 30 and a filter frame 32.
  • the filter sheet 30 may be attached to the filter frame 32 by any convenient means such as by stitching, adhesion, heat bonding, pressure bonding, ultrasonic techniques etc.
  • the filter frame 32 is locatable around the carrier insert 18 that extends above the carrier frame 10.
  • the carrier frame 10 as shown in Figure 1 may be formed from one sheet of material, with the corner portions 16 being formed separately to the remainder of the carrier frame 10.
  • the carrier frame 40 is made up of separate components 42, 44, 46, and 48 which are joined together in any convenient manner.
  • the carrier assembly comprises a carrier support 52 and a carrier insert 54.
  • the carrier support 52 is similar to the carrier support 8 shown in Figure 1 .
  • the carrier insert 54 comprises a first portion 56 and a second, recessed portion 58.
  • the recessed portion 58 is shaped to fit within the ledge 12 so that when the carrier insert is positioned within the carrier support 52, the recessed portion 58 extends to be level with the carrier support with an underside of the carrier support 52.
  • a surface 60 of the first portion of the carrier insert is adapted to engage with the ledge 12 thus allowing the carrier insert to be supported by the carrier support 52.
  • the filter assembly 70 comprises a sheet of filter fabric 72 and frame strips 74, 76, 78 and 80.
  • the filter sheet comprises outer portions 82, 84, 86 and 88.
  • Each of the outer portions is shaped to receive one of the frame strips 74, 76, 78 and 80.
  • a respective frame strip 74, 76, 78, 80 may be attached to a outer portion 82 to 88, and the frame strips 74 to 80 may then be bent over in the direction as shown by arrows 90.
  • the carrier assembly comprises a carrier insert 92.
  • the sides of the insert 92 have been machined to form channels 94 shaped to receive a frame strip once it has been attached to the filter fabric.
  • the filter may be pulled over the carrier insert with all four of the frame strips 74 to 80 being located in a respective channel 94. This has the effect of creating a taut filter over the face of the carrier insert.
  • a carrier frame according to another embodiment not forming part of the invention is designated generally by the reference numeral 100.
  • the carrier support comprises a plurality of ledge portions 102, which in this embodiment are substantially triangular in shape, and are formed in the corners of the frame.
  • the carrier support comprises an additional support member 104 which provides additional support to the carrier insert.
  • the ledges 102 and the additional support member 104 may comprise a plurality of drainage holes of the type shown in Figure 1 and designated by the reference numeral 14. These drainage holes are not depicted in Figures 6 , 7 and 8 .
  • the frame is formed from a plurality of frame members 106.

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)
  • Sink And Installation For Waste Water (AREA)
  • Moulds, Cores, Or Mandrels (AREA)

Claims (10)

  1. Trägeranordnung (4) für eine Zement-Pressform, wobei die Trägeranordnung eine Trägerstütze (8) und einen Trägereinsatz (18) umfasst, der eine erste Oberfläche und eine gegenüberliegende zweite Oberfläche, die lösbar mit dem Trägerstütze in Eingriff gebracht werden kann, umfasst, wobei die Trägerstütze einen Trägerrahmen (10) umfasst, der eine Stützleiste (12) umfasst, die sich um den Trägerrahmen (10) herum erstreckt und eine Stützoberfläche bereitstellt, die angepasst ist, um den Trägereinsatz (18, 54) aufzunehmen und diesen zu stützen, und wobei der Trägereinsatz (18, 54) mehrere Perforationen (20) umfasst und dazu angepasst ist, um mit dem Trägerrahmen (10) in Eingriff zu treten und von diesem gestützt zu werden, dadurch gekennzeichnet, dass die Stützleiste (12) mehrere Ablassöffnungen (14) umfasst.
  2. Trägeranordnung (4) nach Anspruch 1, wobei der Trägereinsatz (18, 54) ein Muster umfasst, das auf einer Oberfläche davon ausgebildet ist.
  3. Trägeranordnung (4) nach Anspruch 1 oder 2, wobei die Trägerstütze (8) eine Bodenformklotzstütze umfasst und der Trägereinsatz (18, 54) einen Bodenformklotzeinsatz umfasst.
  4. Trägeranordnung (4) nach einem der vorhergehenden Ansprüche, wobei der Trägerrahmen mehrere Eckabschnitte (16) umfasst.
  5. Trägeranordnung (4) nach einem der vorhergehenden Ansprüche, wobei die Trägerstütze (8) eine erste Oberfläche und eine gegenüberliegende zweite Oberfläche umfasst.
  6. Trägeranordnung (4) nach einem der vorhergehenden Ansprüche, wobei der Trägereinsatz (18, 54) eine Vertiefung (58) umfasst, die sich um die zweite Oberfläche des Trägereinsatzes herum erstreckt, um einen vertieften Trägereinsatz auszubilden.
  7. Filteranordnung (2) für eine Zement-Pressform, umfassend eine Trägeranordnung (4) nach einem der Ansprüche 1 bis 6, ferner umfassend einen Filter (6), der mit dem Trägereinsatz (18, 54) in Eingriff gebracht werden kann.
  8. Filteranordnung (2) nach Anspruch 7, wobei der Filter (6) eine Filterfolie (30) umfasst, die auf einem Filterrahmen (32) befestigt ist.
  9. Zement-Pressform, umfassend eine Filteranordnung (2) nach Anspruch 8.
  10. Zement-Pressform, umfassend eine Trägeranordnung (4) nach einem der Ansprüche 1 bis 6.
EP13762201.5A 2012-08-09 2013-08-05 Trägeranordnung Active EP2882510B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB1214241.0A GB2504751B (en) 2012-08-09 2012-08-09 Filter assembly
GB1311932.6A GB2504848B (en) 2012-08-09 2013-07-03 Filter assembly
GB1313470.5A GB2506011B (en) 2012-08-09 2013-07-29 Carrier Assembly
PCT/GB2013/052090 WO2014023946A1 (en) 2012-08-09 2013-08-05 Carrier assembly

Publications (2)

Publication Number Publication Date
EP2882510A1 EP2882510A1 (de) 2015-06-17
EP2882510B1 true EP2882510B1 (de) 2019-06-05

Family

ID=49165776

Family Applications (2)

Application Number Title Priority Date Filing Date
EP13762200.7A Active EP2882578B1 (de) 2012-08-09 2013-08-05 Filteranordnung und verfahren zur montage der filteranordnung
EP13762201.5A Active EP2882510B1 (de) 2012-08-09 2013-08-05 Trägeranordnung

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP13762200.7A Active EP2882578B1 (de) 2012-08-09 2013-08-05 Filteranordnung und verfahren zur montage der filteranordnung

Country Status (3)

Country Link
EP (2) EP2882578B1 (de)
GB (2) GB2504848B (de)
WO (2) WO2014023945A1 (de)

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB411049A (en) * 1933-12-13 1934-05-31 John Millar Wilson Improvements in the manufacture of concrete slabs and the like
US2638655A (en) * 1950-09-22 1953-05-19 Thermo Fluid Corp Method of producing cementitious bodies
GB687968A (en) * 1951-09-07 1953-02-25 Cruickshank Ltd R Filter cloths
DE2159890C3 (de) * 1970-12-04 1980-07-03 Enrico Florenz Longinotti (Italien) Form zum Rütteln und Pressen von Formungen aus Beton o.dgl., insbesondere von Betonplatten, und ein mit mehreren derartigen Formen durchführbares Verfahren
US3980414A (en) * 1975-09-29 1976-09-14 Owens-Corning Fiberglas Corporation Core and pressing head of mold box assembly
GB2100659A (en) * 1981-06-19 1983-01-06 Graham David Lyson Moulds for concrete or plaster
GB2128129B (en) * 1982-08-20 1986-04-23 John Richard Blake Production of roofing tiles
GB8412651D0 (en) * 1984-05-17 1984-06-20 Paterson Precast Ltd Robert Pressed concrete product
SE501352C2 (sv) * 1993-06-18 1995-01-23 Machinator Ab Filteranordning
IT1294828B1 (it) * 1997-07-24 1999-04-15 Longinotti Meccanica S R L Apparecchiatura per produrre mattonelle sottili di impasto cementizio
GB2365368B (en) * 2000-08-02 2003-06-18 Eco Filters Ltd Filter assembly
ES2253992B1 (es) * 2004-07-15 2007-10-01 Prensas De Tomelloso, S.A. Punzon de prensada con sistema de extraccion de agua para la fabricacion de baldosas.
GB0512470D0 (en) * 2005-06-18 2005-07-27 Eco Filters Ltd Filter assembly
ITMI20061262A1 (it) * 2006-06-29 2007-12-30 O C E M Officina Costruzioni Elettro-Meccaniche Dispositivo per la produzione di mattonelle
GB0625072D0 (en) * 2006-12-15 2007-01-24 Eco Filters Ltd Wear component

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2882578A1 (de) 2015-06-17
GB2504848A (en) 2014-02-12
EP2882578B1 (de) 2019-09-25
GB201311932D0 (en) 2013-08-14
GB2506011B (en) 2016-04-13
EP2882510A1 (de) 2015-06-17
GB2506011A (en) 2014-03-19
WO2014023946A1 (en) 2014-02-13
WO2014023945A1 (en) 2014-02-13
GB2504848B (en) 2015-12-30
GB201313470D0 (en) 2013-09-11

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