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EP2070670A1 - Machine et méthode pour la fabrication de briques crues perforées en argile - Google Patents

Machine et méthode pour la fabrication de briques crues perforées en argile Download PDF

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Publication number
EP2070670A1
EP2070670A1 EP08021440A EP08021440A EP2070670A1 EP 2070670 A1 EP2070670 A1 EP 2070670A1 EP 08021440 A EP08021440 A EP 08021440A EP 08021440 A EP08021440 A EP 08021440A EP 2070670 A1 EP2070670 A1 EP 2070670A1
Authority
EP
European Patent Office
Prior art keywords
clay
mould
perforating member
perforating
green brick
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.)
Granted
Application number
EP08021440A
Other languages
German (de)
English (en)
Other versions
EP2070670B1 (fr
Inventor
Wilhelmus Jacobus Maria Kosman
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.)
Beheermaatschappij De Boer Nijmegen BV
Original Assignee
Beheermaatschappij De Boer Nijmegen BV
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 Beheermaatschappij De Boer Nijmegen BV filed Critical Beheermaatschappij De Boer Nijmegen BV
Publication of EP2070670A1 publication Critical patent/EP2070670A1/fr
Application granted granted Critical
Publication of EP2070670B1 publication Critical patent/EP2070670B1/fr
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
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/48—Producing shaped prefabricated articles from the material by removing material from solid section preforms for forming hollow articles, e.g. by punching or boring
    • 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
    • B28B1/44—Producing shaped prefabricated articles from the material by forcing cores into filled moulds for forming hollow articles
    • B28B1/445—Hollow punches or cores
    • 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
    • B28B7/0002—Auxiliary parts or elements of the mould
    • B28B7/0008—Venting channels, e.g. to avoid vacuum during demoulding or allowing air to escape during feeding, pressing or moulding

Definitions

  • the present invention relates to a device for manufacturing green bricks from clay for the brick manufacturing industry, comprising a circulating conveyor formed from mould container parts, wherein each mould container part comprises one or more mould containers having in each case a mould cavity, means for arranging deformable clay in the mould cavities of the mould containers, and means for discharging green bricks released from the mould containers.
  • the invention further relates to a perforating device for removing clay from a green brick, and to a method for manufacturing green bricks from clay.
  • the brick manufacturing industry can be divided into so-called extruders, in which clay is extruded, and so-called mould chain presses.
  • Extruders produce a kind of sausage of clay which is then cut to the desired brick size.
  • Such extruders have the advantage that the mould through which the clay is pressed can be provided relatively easily with a form such that perforations will be present in the final brick, this resulting in a material-saving.
  • the clay is pressed like a sausage through the mould, for instance the outer surface of the brick has been exposed to shear stresses which have an adverse effect on the aesthetic aspects of such a brick.
  • mould chain presses to which the present invention relates, deformable clay is pressed in mould cavities - usually covered in sand - of mould containers. The green brick formed in the mould container is then released in order to be dried and fired.
  • the advantage of such mould chain presses is that the aesthetic aspects are improved.
  • mould chain presses of manufacturing, in mechanical manner so-called 'hand-moulded' bricks which show a visual likeness to bricks made in the traditional handmade way.
  • Material-saving in mould chain presses has however remained limited up until now to the arranging of protrusions, so-called frogs, in the mould containers, whereby less clay is required to fill the mould container.
  • An object of the present invention is to provide a device and method for manufacturing green bricks from clay for the brick manufacturing industry with which it is possible to remove clay from a green brick.
  • the device comprises two parts movable relative to each other, clay can be perforated out of the green brick while the desired brick shape is retained. While the first part perforates a recess in the clay with a perforating member, the second part, using holding means, holds in place the green brick from which the clay is being removed.
  • the shape of the green brick is hereby retained, and the green brick is particularly prevented from being deformed as a result of shear forces between the perforating member and the clay when the perforating member is moved out of the clay. Without holding means this would normally result in protruding shapes along the periphery of the perforated holes.
  • the perforating member is a hollow body with open outer ends on both sides, in particular a hollow tube, the perforating member is able to allow passage of removed clay.
  • a hollow perforating member is therefore able, in the limited cycle time of a mould chain press - which is generally about two seconds per stroke -, to perforate recesses in the green bricks.
  • both the above stated options require an intermediate step which cannot be realized in the cycle time of an operational mould chain press, and would therefore slow the cycle time, which is undesirable.
  • the above stated options require additional installation space for the purpose of displacing either the perforating member or the collecting device. Owing to its complexity, the required mechanical construction will moreover need more maintenance than the device according to the present invention, and also consume energy each time the perforating member or the collecting device is displaced between each press stroke.
  • the perforating member were not given a hollow form, it would displace the clay at the position of the perforating member when pressed into the green brick, whereby a recess is also made in the green brick.
  • the use of such a non-hollow member functioning as displacing means does however require a very precise dosing of the clay in the mould container, and is therefore undesirable.
  • the device further comprises at least one spring which is arranged between the first and second part and which is adapted to press the holding means against the mould container when the perforating member is situated at least partially in the mould container.
  • Displaceable in the mould container means that the perforating member is displaceable into the mould cavity of the mould container in which the green brick is being formed.
  • the holding means comprise a plate provided with at least one opening through which the perforating member is movable. Because the perforating member can move through the plate, clay can be taken out of the green brick while the plate holds the green brick in place around the perforating member.
  • the device is further provided with supply means for supplying fluid to the felt.
  • the adhesion of clay to the holding means can be reduced still further by moistening the felt layer with a fluid, such as for instance oil, in particular biodegradable oil, but also mineral oil.
  • a fluid such as for instance oil, in particular biodegradable oil, but also mineral oil.
  • the felt layer moistened with oil prevents adhesion of the clay to the plate.
  • the perforating member is driven hydraulically or pneumatically, this having the advantage that a preset force can be exerted at the lowest point. This is much more difficult to realize with a purely mechanical drive.
  • the collecting body is at least partially plate-like, and the open outer end of the hollow perforating member remote from the mould container side is received in the plate-like collecting body, wherein a discharge device is further provided for discharging from the plate-like collecting body clay collected thereon.
  • the discharge device comprises for instance one or more plates driven via a conveyor which displace off the collecting body the clay collected on the collecting body.
  • the open outer end of the hollow perforating member is preferably received at least substantially close-fittingly in the plate-like collecting body.
  • the present invention further relates to a device for removing clay from a green brick, comprising two parts movable relative to each other, wherein the first part comprises at least one hollow perforating member with open outer ends on both sides, wherein the perforating member serves to arrange a recess in the clay, and wherein the second part comprises holding means adapted to hold the green brick in place when the clay is removed from the green brick.
  • the mould container forms part of a device for manufacturing green bricks from clay for the brick manufacturing industry.
  • the present invention further relates to a method for perforating clay out of a green brick, comprising the following steps of:
  • the clay collected on the collecting body is discharged by a discharge device.
  • Device 1 for manufacturing green bricks for the brick manufacturing industry comprises a chain conveyor 2, also referred to as a mould conveyor.
  • This chain conveyor 2 is assembled from a large number of connected mould container parts 3, comprising in each case a number of mould containers 16.
  • Shown in figures 1 and 2 is a so-called 16-container mould conveyor, which means that mould container parts 3 are provided in each case with sixteen mould containers 16.
  • Each mould container 16 comprises a mould cavity 23 ( figure 11 ) in which clay can be received for the purpose of forming a green brick 18.
  • Mould container parts 3 are mutually coupled and provided with rollers 15 rotatable over girders 14 in order to together thus form the chain of chain conveyor 2 - or mould conveyor.
  • the chain is driven by one of the chain wheels 13 or by both chain wheels 13 (wherein for the sake of clarity only the right-hand chain wheel is shown in figure 1 ).
  • the transporting direction of the chain conveyor is to the left in the embodiment shown in figure 1 (P1 in figure 1 ).
  • a conveyor rotating to the right is of course equally possible.
  • a reservoir 4 for clay Placed above mould containers 16 is a reservoir 4 for clay which is kept in continuous movement by an agitator 5 which is driven by motor 6. Clay is fed ⁇ to reservoir 4 by a circulating conveyor 7. The clay is carried out of reservoir 4 into mould container 16 and then pressed down by a pressing device 8 which is pivotable around a shaft 9. The excess clay is also trimmed using means which are not drawn.
  • the device 1 comprises a further conveyor 10 with which take-off plates 11 are supplied. Conveyor 10 also ensures that a take-off plate 11 is placed on top of each passing mould container part 3. Take-off plates 11 remain pressed against the respective mould con ⁇ tainer parts 3 by a holding mechanism 12 when they pass over the left-hand chain wheel (not shown) on the discharge side of the device. After turning over of the mould container part 3, the green bricks 18 still lie on plates 11. A knock-out mechanism (not shown) presses the green bricks 18 out of mould containers 16 per mould container part 3. Green bricks 18 herein remain lying on plates 11 after they have been released from mould containers 16. Plates 11 with green bricks 18 thereon are then discharged for further treatment, such as drying and firing.
  • Figure 2 is a perspective view of a perforating device 19 for perforating into green bricks 18 recesses 46 which are arranged at the position of the box indicated in figure 1 .
  • Perforating device 19 comprises a frame 24 which is adjustable in height direction H and which comprises two parts 20, 22 which are movable relative to each other and which are connected to frame 24 by means of beams 26.
  • First part 20 comprises a part 28 open to the top and having a U-profile built up of a bottom plate 30 and upright walls 32.
  • First part 20 further comprises a perforating member 34 in the form of a hollow tube with open outer ends on both sides.
  • Second part 22 is connected to first part 20 by means of rods 36 which act as guide.
  • rods 36 Arranged round rods 36 is a compression spring 38 which presses holding plate 40 of second part 22 away from first part 20.
  • Arranged in holding plate 40 are openings 42 through which the perforating member connected to first part 20 can be moved.
  • Holding plate 40 is further provided with a felt layer which reduces adhesion of the clay of green brick 18 to holding plate 40.
  • FIG 2 the transporting direction of the mould conveyor is indicated with arrow P1, wherein green bricks 18 are shown on the left-hand side in figure 2 which have already been moved through under perforating device 19 and have therefore been provided with recesses 46.
  • One layer of clay at a time is perforated out of a green brick 18 in perforating device 2. This removed layer of clay is received each time as a piece of clay 48 in perforating member 34.
  • perforating member 34 is filled with fresh clay from the mould container side, pieces of clay 48 already present in perforating member 34 are pushed through the hollow perforating member 34 with open outer ends on both sides, as can be seen in figures 2 and 3 .
  • perforating device 19 A further elucidation of the functioning of perforating device 19 will now be given with reference to figures 5-10 .
  • perforating device 19 is situated above mould container 16 in which a green brick 18 is received.
  • perforating device 19 When perforating device 19 is then pushed further downward, perforating members 34 move through openings 42 in holding plate 40 ( figure 7 ). Perforating members 34 are pushed into the clay of green brick 18 situated in mould cavity 23 of mould container 16, wherein perforating members 34 perforate a portion of the clay.
  • Spring 38 is compressed when second part 22 of perforating device 19 supports against mould container 16 and first part 20 of perforating device 19 is moved further downward.
  • first part 20 and second part 22 of perforating device 19 then move apart again ( figure 8 ), perforating members 34 move out of green brick 18.
  • the clay 48 removed by perforating members 34 is co-displaced with perforating members 34 out of green brick 18, wherein recesses 46 are formed in green brick 18.
  • the air feed openings in figures 5-10 are shown schematically only as channels, while in figure 11 they are shown in the form of a cross.
  • spring 38 provides sufficient downward pressure on holding plate 40 in the direction of mould container 16 that the clay of green brick 18 is held in place.
  • FIGS 12A and 12B show two embodiments in which the felt 44 can be arranged on holding plate 40.
  • the felt protrudes at least locally through holding plate 40 so that it can be moistened from the top side with supply means 50 for supplying a fluid 52 such as oil.
  • the moistened felt 44 on the top side of holding plate 40 will become saturated and thus also moisten the felt 44 on the underside of holding plate 40, this reducing the adhesion of clay.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
EP08021440A 2007-12-10 2008-12-10 Machine et méthode pour la fabrication de briques crues perforées en argile Active EP2070670B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1034806A NL1034806C2 (nl) 2007-12-10 2007-12-10 Inrichting en werkwijze voor het vervaardigen van vormelingen uit klei, en ponsinrichting daarvoor.

Publications (2)

Publication Number Publication Date
EP2070670A1 true EP2070670A1 (fr) 2009-06-17
EP2070670B1 EP2070670B1 (fr) 2010-11-10

Family

ID=39627834

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08021440A Active EP2070670B1 (fr) 2007-12-10 2008-12-10 Machine et méthode pour la fabrication de briques crues perforées en argile

Country Status (6)

Country Link
EP (1) EP2070670B1 (fr)
AT (1) ATE487576T1 (fr)
DE (1) DE602008003392D1 (fr)
DK (1) DK2070670T3 (fr)
ES (1) ES2354641T3 (fr)
NL (1) NL1034806C2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108327046A (zh) * 2018-04-02 2018-07-27 山东银蕨智能科技有限公司 一种耐火砖砖坯压砖装置用自动夹砖机械手
CN111923206A (zh) * 2020-07-06 2020-11-13 龚月红 一种建筑用瓦片切形装置
CN117962077A (zh) * 2024-04-01 2024-05-03 阳城县世锋建材有限公司 一种透水砖制备设备及制备方法
CN120363311A (zh) * 2025-05-30 2025-07-25 兴化市金牛机械铸造有限公司 一种陶瓷制品压制装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1184713A (en) * 1967-03-13 1970-03-18 Redland Bricks Ltd Brickmaking Process and Machine
JPS55132204A (en) * 1979-04-04 1980-10-14 Eijiyuu In Method of molding molding with hole and its molding device
SU1219365A1 (ru) * 1984-04-11 1986-03-23 Минский научно-исследовательский институт строительных материалов Устройство дл образовани пустот в строительных издели х
WO1996038276A1 (fr) * 1995-05-30 1996-12-05 Beheermaatschappij De Boer Nijmegen B.V. Appareil pour obtenir des briques crues avec de l'argile, utilise dans la fabrication de briques

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1184713A (en) * 1967-03-13 1970-03-18 Redland Bricks Ltd Brickmaking Process and Machine
JPS55132204A (en) * 1979-04-04 1980-10-14 Eijiyuu In Method of molding molding with hole and its molding device
SU1219365A1 (ru) * 1984-04-11 1986-03-23 Минский научно-исследовательский институт строительных материалов Устройство дл образовани пустот в строительных издели х
WO1996038276A1 (fr) * 1995-05-30 1996-12-05 Beheermaatschappij De Boer Nijmegen B.V. Appareil pour obtenir des briques crues avec de l'argile, utilise dans la fabrication de briques

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108327046A (zh) * 2018-04-02 2018-07-27 山东银蕨智能科技有限公司 一种耐火砖砖坯压砖装置用自动夹砖机械手
CN111923206A (zh) * 2020-07-06 2020-11-13 龚月红 一种建筑用瓦片切形装置
CN117962077A (zh) * 2024-04-01 2024-05-03 阳城县世锋建材有限公司 一种透水砖制备设备及制备方法
CN120363311A (zh) * 2025-05-30 2025-07-25 兴化市金牛机械铸造有限公司 一种陶瓷制品压制装置

Also Published As

Publication number Publication date
DK2070670T3 (da) 2011-02-21
DE602008003392D1 (de) 2010-12-23
EP2070670B1 (fr) 2010-11-10
ATE487576T1 (de) 2010-11-15
NL1034806C2 (nl) 2009-06-18
ES2354641T3 (es) 2011-03-16

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