EP2070670B1 - Vorrichtung und Verfahren zur Herstellung von Lochsteinformlingen aus Ton - Google Patents

Vorrichtung und Verfahren zur Herstellung von Lochsteinformlingen aus Ton Download PDF

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Publication number
EP2070670B1
EP2070670B1 EP08021440A EP08021440A EP2070670B1 EP 2070670 B1 EP2070670 B1 EP 2070670B1 EP 08021440 A EP08021440 A EP 08021440A EP 08021440 A EP08021440 A EP 08021440A EP 2070670 B1 EP2070670 B1 EP 2070670B1
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European Patent Office
Prior art keywords
clay
mould
perforating member
perforating
mould container
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EP08021440A
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English (en)
French (fr)
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EP2070670A1 (de
Inventor
Wilhelmus Jacobus Maria Kosman
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Beheermaatschappij De Boer Nijmegen BV
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Beheermaatschappij De Boer Nijmegen BV
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    • 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.
  • GB-A-1184713 discloses a device being directed for punching holes through freshly pressed clay products.
  • WO-A-9638276 of Applicant discloses a method according to the preamble of claim 10, and an apparatus for manufacturing green bricks from clay for the production of bricks according to the preamble of claim 1, and contains means for arranging cylindrical openings in the bricks.
  • a vertically movable frame moves downwards and cutting cylinders penetrate into the green bricks.
  • the cylinders carry the cut-out of the green bricks, so that cylindrical openings are created in the green bricks.
  • 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.
  • the hollow perforating member comprises open outer ends on both sides, it is possible to dispense with alternative measures for removing the clay from the perforating member.
  • clay which is received in the perforating member can for instance be pushed out of the perforating member by means of a plunger on the mould container side.
  • a first option comprises of temporarily positioning a collecting device under the perforating member for the purpose of collecting the clay removed from the green brick.
  • a second option comprises of displacing the perforating member to a position above a collecting device for the purpose of collecting the clay removed from the green brick.
  • 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 recess can comprise a hole all the way through the green brick as well as a blind hole therein.
  • the clay removed from the green brick results in a material-saving, this being desirable for environmental, energy-related and cost-related reasons.
  • the green bricks can moreover be dried in a short drying time, or optionally at lower temperature.
  • 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.
  • the perforating member is situated at least partially in a volume enclosed by the mould container, also referred to as mould cavity.
  • This mould cavity of the mould container is intended to receive and shape a green brick. Because the spring presses the holding means against the mould container while the perforating member removes clay from the mould, the mould cavity of the mould container is bounded on the top side by the holding means, whereby the shape of the green brick is retained when the clay is removed.
  • the device further comprises a frame comprising two parts movable relative to each other, wherein the frame can be arranged above the mould container in which one or more green bricks are received such that the frame with the movable parts is movable relative to the mould container, wherein the perforating member arranged on the first part is displaceable at least partially in the mould container for the purpose of perforating clay out of a green brick received 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 holding means are covered with felt. Covering the contact surface between the holding means and the clay of the green brick with felt can reduce adhesion of the clay to the holding means. It should be noted that other options for preventing adhesion can also be envisaged, such as chemical solutions, the applying of an electric charge and covering the contact surface with sand.
  • 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 mould container is provided with at least one air feed opening. These air feed openings are arranged in the bottom of the mould cavity to prevent a vacuum occurring when the clay is removed from the green brick, which vacuum would prevent or impede removal.
  • the openings are therefore situated at the locations where the recesses are arranged in the green bricks, i.e. in the line of the stroke of the perforating member.
  • an extra air feed opening can be provided close to the edge of the mould container in order to facilitate release of the green brick from the mould container.
  • the perforating member By embodying the bottom of the mould containers in a material which is to at least some extent elastic, for instance rubber, the perforating member can be pressed firmly through into the bottom, thereby forming a complete perforation through the green brick.
  • 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 hollow perforating member is received at its outer end remote from the mould container side in a collecting body on which clay carried through the hollow perforating member can be collected.
  • the perforating member removes a portion of clay at a time from a green brick, so that in the case of a hollow tubular perforating member cylindrical pieces of clay will be present in the perforating member.
  • cylindrical pieces of clay already present in the perforating member will be pushed through until they leave the perforating member on the outer end remote from the mould container side The clay is collected on the collecting body close to this outer end and subsequently discharged for reuse.
  • 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 method: for perforating clay out of a green brick, comprising the steps as defined in claim 10.
  • the removed clay is pushed through the hollow perforating member by successive perforating movements of the perforating member until it leaves the perforating member at the open outer end remote from the mould container side.
  • Fresh clay is removed at each subsequent perforating movement. This pushes the clay already present in the perforating member, and which has been removed during previous perforating movements, further until it is pushed but of the perforating member.
  • the clay which leaves the perforating member at the open outer end remote from the mould container side is collected on a collecting body.
  • 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 container 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 of figure 2 further comprises a discharge device 60 consisting of a shaft 62 on which chain wheels 64 are arranged. Chain wheels 64 drive a conveyor 66 with plates 68 for the purpose of discharging clay collected on bottom plate 30 ( figure 2 ).
  • FIG 4 shows that perforating device 19 is driven by a crank mechanism 70 comprising length-adjustable arms 72.
  • a crank mechanism 70 comprising length-adjustable arms 72.
  • the starting position of the stroke of perforating device 19 can be adjusted.
  • perforating device 19 can be set to the desired brick thickness, such as for instance 'Waal' variety size or 'Thick Waal' variety size, without the length of the stroke having to be modified. It is not therefore necessary to adjust the arm of crank mechanism 70.
  • 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.

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  • 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)

Claims (14)

  1. Vorrichtung zum Herstellen von Formlingen aus Ton für die Ziegelsteinherstellende Industrie, die aufweist:
    - eine umlaufende, aus Formbehälterteilen (3) gebildete Transporteinrichtung (2), wobei jedes Formbehälterteil (3) einen oder mehrere Formbehälter (16) aufweist, die in jedem Fall eine Formvertiefung (23) haben;
    - Mittel zum Anordnen von verformbarem Ton in den Formvertiefungen (23) der Formbehälter (16); und
    - Mittel zum Entladen von Formlingen (18), die von den Formbehältern (16) ausgegeben werden;
    - wobei die Vorrichtung weiterhin zwei Teile (20, 22) aufweist, die relativ zueinander beweglich sind;
    - das erste Teil (20), das mindestens ein hohles Lochelement zum Anordnen einer Vertiefung in dem Ton aufweist;
    - das zweite Teil (22), das ein Haltemittel (40) aufweist, das angepasst ist, den Formling (18) ortsfest zu halten, wenn der Ton aus dem Formling (18) ausgehöhlt wird;
    dadurch gekennzeichnet, dass das hohle Lochelement (34) auf beiden Seiten offene äußere Enden aufweist; und
    der Formbehälter (16) mit einer Luftzuführöffnung (56) in der Line des Hubs des Lochelements versehen ist.
  2. Vorrichtung, wie in Anspruch 1 beansprucht, die weiterhin mindestens eine Feder (38) aufweist, die zwischen dem ersten (20) und dem zweiten Teil (22) angeordnet ist, und die angepasst ist, das Haltemittel (40) gegen den Formbehälter (16) zu pressen, wenn das Lochelement (34) zumindest teilweise in dem Formbehälter (16) gelegen ist.
  3. Vorrichtung, wie in Anspruch 1 oder 2 beansprucht, die weiterhin aufweist:
    - einen Rahmen (24), der zwei relativ zueinander bewegliche Teile (20, 22) aufweist;
    - wobei der Rahmen (24) über dem Formbehälter (16) anordenbar ist, in dem ein oder mehrere Formlinge (18) so aufgenommen sind, dass der Rahmen mit den beweglichen Teilen relativ zu den Formbehältern beweglich ist, wobei das Lochelement (34), das auf dem ersten Teil (20) angeordnet ist, zum Zweck des Lochens von Ton aus einem Formling (18), der in dem Formbehälter (16) aufgenommen ist, zumindest teilweise in den Formbehälter verschiebbar ist.
  4. Vorrichtung, wie in einem der vorangehenden Ansprüche beansprucht, wobei das Haltemittel (40) eine Platte aufweist, die mit mindestens einer Öffnung (42) versehen ist, durch die das Lochelement (34) beweglich ist.
  5. Vorrichtung, wie ein einem der vorangehenden Ansprüche beansprucht, wobei das Haltemittel (40) mit Filz (44) bedeckt ist.
  6. Vorrichtung, wie in Anspruch 5 beansprucht, wobei die Vorrichtung weiterhin mit einem Versorgungsmittel (50) zum Anliefern eines Fluids (52) zu dem Filz (44) versehen ist.
  7. Vorrichtung, wie in einem der vorangehenden Ansprüche beansprucht, wobei das Lochelement (34) hydraulisch oder pneumatisch angetrieben wird.
  8. Vorrichtung, wie in einem der vorangehenden Ansprüche beansprucht, wobei das hohle Lochelement (34) an seinem äußeren Ende, das von der Formbehälterseite entfernt ist, in einem Sammelkörper (28), auf dem Ton, der durch das hohle Lochelement transportiert wird, gesammelt werden kann, aufgenommen ist.
  9. Vorrichtung, wie in Anspruch 8 beansprucht, wobei:
    - der Sammelkörper (28) zumindest teilweise plattenartig ist; und
    - das äußere Ende des hohlen Lochelements (34), das entfernt von der Formbehälterseite ist, in dem plattenartigen Sammelkörper aufgenommen ist; und
    - wobei weiterhin eine Entladevorrichtung (60) zum Entladen von darauf gesammeltem Ton von dem plattenartigen Sammelkörper vorgesehen ist.
  10. Verfahren zum Lochen von Ton aus einem Formling unter Verwendung der Vorrichtung gemäß einem der Ansprüche 1-9, das die Schritte
    - des Platzierens über einem oder mehreren Formlingen (18), die aus verformbaren Ton in Formvertiefungen (23) von Formbehältern (16) geformt sind, von einer Vorrichtung zum Entfernen von Ton aus dem Formling, die aufweist:
    - zwei Teile (20, 22), die relativ zueinander beweglich sind;
    - das erste Teil (20) zumindest ein hohles Lochelement (34) zum Anordnen einer Vertiefung in dem Ton aufweist; und
    - das zweite Teil (22) ein Haltemittel (40) aufweist, das angepasst ist, den Formling (18) ortsfest zu halten, wenn der Ton aus dem Formling gelocht wird;
    - des Verschiebens des ersten Teils (20), das zumindest ein hohles Lochelement (34) aufweist, in die Richtung des Formbehälters, in dem der Formling (18) aufgenommen ist, wobei das Lochelement in den Ton des Formlings, der in dem Formbehälter aufgenommen ist, gepresst wird;
    - des Bewegens des Lochelements (34) aus dem Ton des Form-lings aufweist, wobei das Lochelement (34) von dem Form-ling (18) entfernten Ton wegnimmt; und
    - wobei das zweite Teil (22) mit einem Haltemittel (40) den Ton des Formlings (18), der in der Formvertiefung (23) des Formbehälters (16) aufgenommen ist, ortsfest hält, wenn das Lochelement (34) aus dem Ton bewegt wird,
    dadurch gekennzeichnet, dass
    - das hohle Lochelement (34) auf beiden Seiten offene äußere Enden aufweist; und
    - der Formbehälter (16) in der Linie des Hubs des Lochele-ments mit einer Luftzuführöffnung (56) versehen ist.
  11. Verfahren, wie in Anspruch 10 beansprucht, wobei der entfernte Ton durch aufeinanderfolgende Lochbewegungen des Lochelements durch das hohle Lochelement (34) gedrückt wird, bis er das Lochelement (34) an dem offenen äußeren Ende, das von dem Formbehälter (16) entfernt ist, verlässt.
  12. Verfahren, wie in Anspruch 11 beansprucht, wobei der Ton, der das Lochelement (34) an dem offenen äußeren Ende, das von dem Formbehälter (16) entfernt ist, verlässt, auf einem Sammelkörper (28) gesammelt wird.
  13. Verfahren, wie in Anspruch 12 beansprucht, wobei der Ton, der auf dem Sammelkörper (28) gesammelt ist, durch eine Entladevorrichtung (60) entladen wird.
  14. Verfahren, wie in einem der Ansprüche 10 - 13 bean-sprucht, wobei eine Vorrichtung entsprechend einem der An-sprüche 1 - 9 angewendet wird.
EP08021440A 2007-12-10 2008-12-10 Vorrichtung und Verfahren zur Herstellung von Lochsteinformlingen aus Ton Active EP2070670B1 (de)

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NL1034806A NL1034806C2 (nl) 2007-12-10 2007-12-10 Inrichting en werkwijze voor het vervaardigen van vormelingen uit klei, en ponsinrichting daarvoor.

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EP2070670B1 true EP2070670B1 (de) 2010-11-10

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EP (1) EP2070670B1 (de)
AT (1) ATE487576T1 (de)
DE (1) DE602008003392D1 (de)
DK (1) DK2070670T3 (de)
ES (1) ES2354641T3 (de)
NL (1) NL1034806C2 (de)

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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
CN117962077B (zh) * 2024-04-01 2024-06-14 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

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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
NL1000453C2 (nl) * 1995-05-30 1996-12-03 Boer Beheer Nijmegen Bv De Inrichting voor het vervaardigen van vormlingen uit klei voor de produktie van stenen.

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DK2070670T3 (da) 2011-02-21
EP2070670A1 (de) 2009-06-17
DE602008003392D1 (de) 2010-12-23
ATE487576T1 (de) 2010-11-15
NL1034806C2 (nl) 2009-06-18
ES2354641T3 (es) 2011-03-16

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