EP2418057A1 - A mould container part provided with a sealing device, and such a sealing device and method for application thereof - Google Patents
A mould container part provided with a sealing device, and such a sealing device and method for application thereof Download PDFInfo
- Publication number
- EP2418057A1 EP2418057A1 EP11176804A EP11176804A EP2418057A1 EP 2418057 A1 EP2418057 A1 EP 2418057A1 EP 11176804 A EP11176804 A EP 11176804A EP 11176804 A EP11176804 A EP 11176804A EP 2418057 A1 EP2418057 A1 EP 2418057A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wall
- mould container
- mould
- upper side
- sealing device
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000003825 pressing Methods 0.000 claims abstract description 16
- 239000011449 brick Substances 0.000 claims description 36
- 239000004927 clay Substances 0.000 claims description 20
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 238000004904 shortening Methods 0.000 claims description 4
- 230000008439 repair process Effects 0.000 description 6
- 238000003466 welding Methods 0.000 description 4
- 238000010304 firing Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Images
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
- B28B5/00—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping
- B28B5/04—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping in moulds moved in succession past one or more shaping stations
-
- 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
- B28B5/00—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping
- B28B5/02—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type
- B28B5/021—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of definite length
-
- 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
- B28B5/00—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping
- B28B5/02—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type
- B28B5/021—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of definite length
- B28B5/022—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of definite length the moulds or the moulding surfaces being individual independant units and being discontinuously fed
-
- 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
- B28B7/0011—Mould seals
-
- 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
- B28B7/0029—Moulds or moulding surfaces not covered by B28B7/0058 - B28B7/36 and B28B7/40 - B28B7/465, e.g. moulds assembled from several parts
-
- 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
Definitions
- the present invention relates to a mould container part of a mould container pressing device provided with a sealing device, and to such a sealing device and method for application thereof.
- the invention also relates to a mould container pressing device for manufacturing green bricks from clay for the brick manufacturing industry, comprising a mould container part with such a sealing device.
- the invention relates more particularly to a mould container part for manufacturing green bricks therein with a mould container pressing device, the mould container part comprising:
- the sealing device consists of anti-leakage strips welded against the wall of the mould container part. Because these anti-leakage strips and the upper side of the mould container parts wear during the production of bricks, a periodic repair is necessary every 1 to 1.5 years. Because the anti-leakage strips are fixedly welded, during a repair these welds have to be regularly ground away, welded in again and subsequently milled level again. In addition to the fact that these repairs are very time-consuming and laborious, they have the further drawback that with some regularity a mould container part curves as a result of the heat released during the welding.
- An object of the present invention is to provide a device and method wherein the stated drawbacks do not occur, or at least do so to lesser extent.
- mould container part for manufacturing green bricks therein with a mould container pressing device, the mould container part comprising:
- the mould container parts can be mutually coupled by means of the coupling means, and can thus be connected to form a conveyor of a mould container pressing device.
- a conveyor of a mould container pressing device In coupled position an intermediate space is present between the successive mould container parts between which clay residues released during pressing of green bricks can drop.
- the sealing device spans this intermediate space.
- the base part is arranged against the wall of the mould container part with its upper side at a distance from the upper side of the wall, a height difference is created in which an easily replaceable wearing part can be arranged.
- This height difference can moreover also be restored after the upper side of a somewhat worn mould container part has been milled level since the same quantity of material can be removed from the upper side of the base part.
- After placing of a replacement wearing part the upper side of the wearing part and the upper side of the wall are substantially flush, i.e. these upper sides connect substantially level and almost without height difference to each other.
- the sealing device according to the invention thus makes it possible to repair a mould container part with a standard wearing part which can easily be held in stock. Laborious welding with the associated risks of curving of the mould container parts hereby becomes wholly unnecessary.
- the resilient seal which can be received in the recess of the intermediate part is suitable for the purpose of forming a resilient seal with an identical sealing device of an adjacent mould container part.
- Such a resilient contact between two adjacent resilient seals guarantees a continuous seal which is also wear-resistant.
- the base part and intermediate part together have a thickness corresponding to the distance at which the upper side of the base part is located from the upper side of the wall, so that in the arranged position the upper side of the wearing part lies substantially flush with the upper side of the wall.
- the mould container part is provided on both walls with a sealing device.
- the coupling means are link parts of a chain part; and the sealing device and the central axis of the link part extend substantially the same distance away from the wall of the mould container part. This ensures that substantially the whole intermediate space between mutually coupled mould container parts is spanned by two adjacent sealing devices, whereby substantially no clay or other unwanted material can pass therebetween.
- the mould container part is provided on only one wall with a sealing device.
- a sealing device can suffice for the purpose of substantially wholly spanning the distance between the successive mould container parts. It is noted that, in the case of a single-sided embodiment, the sealing device is preferably applied in each case on the same side of the mould container part.
- the coupling means are link parts of a chain part; and the sealing device extends further than the central axis of the link part extends away from the wall of the mould container part. It is hereby possible, even with a single-sided sealing device arranged on the mould container part, to span substantially the whole distance between successive mould container parts and thus seal them against clay and other contaminants falling therebetween.
- the invention further relates to a sealing device evidently intended for use on a mould container part as described above, the sealing device comprising:
- the intermediate part In the arranged position the upper side of the wearing part lies substantially flush with the upper side of the wall of the mould container part.
- the invention further relates to a mould container pressing device for manufacturing green bricks from clay for the brick manufacturing industry, comprising:
- the invention also relates to a method for applying a sealing device as described above, the method comprising the steps of:
- the method further comprises the step, if desired, of replacing the intermediate part and/or replacing the resilient seal.
- the method further comprises the step of likewise shortening legs functioning as spacers by a layer thickness, the layer thickness being the sum of the layer thickness worn away through use and the layer thickness removed during the step of levelling the upper side of the wall.
- the height of the green brick to be formed in the mould cavity of the mould container can be set by means of a movable base.
- the depth of the mould cavity remains unchanged by shortening the legs, functioning as spacers for the movable base, by a distance corresponding to the layer thickness which is the sum of the layer thickness worn away through use and the layer thickness removed during the step of levelling the upper side of the wall. After firing thereof the green bricks to be formed will produce bricks with unchanged brick height.
- the method further comprises the use of the mould container part as described above.
- Figure 1 shows a mould container pressing device 1 for manufacturing green bricks 18 from clay for the brick manufacturing industry, comprising a circulating conveyor 2 formed from connected mould container parts 3, wherein each mould container part 3 comprises one or more mould containers 16, each with a mould cavity 19, a reservoir 4 for clay arranged above mould containers 16, clay arranging means for arranging clay from reservoir 4 in mould containers 16 during a moulding stage, means for covering an open side of mould containers 16 with take-off plates 11, at least one ejecting device 20 arranged on conveyor 2 and movable relative to conveyor 2, wherein ejecting device 20 is adapted to eject a green brick 18 present in mould container 16 onto an associated take-off plate 11 during a release stage, wherein ejecting device 20 comprises at least one base 38 which is displaceable in mould container 16 and which supports during the moulding stage against a stepped support device using legs 24, wherein using an adjustable support height the height of the green brick 18 to be formed in mould container 16 is adjustable via the depth of mould container 16.
- the mould container pressing device 1 comprises a chain conveyor 2, also referred to as mould conveyor.
- This chain conveyor 2 is assembled from a large number of mutually connected mould container parts 3, each comprising a number of mould containers 16.
- Each mould container 16 comprises a mould cavity 19 in which clay can be received for the purpose of forming a green brick 18.
- Mould container parts 3 are coupled to each other and provided with rollers 15 rotatable over girders 14 so as to together thus form the chain - or conveyor - 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 shown embodiment of figure 1 (P 1 in figure 1 ).
- a conveyor rotating to the right is of course likewise 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 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 further comprises a 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.
- An ejecting device 20 as shown in figures 2-4 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.
- FIGS 2-4 show a mould container part 3 assembled from different mould containers 16 connected to form a unit.
- Mould container part 3 further comprises a chain part 44 onto which link parts 46 are welded.
- link parts 46 are welded.
- FIG. 2 Shows a mould container part 3 assembled from different mould containers 16 connected to form a unit.
- Mould container part 3 further comprises a chain part 44 onto which link parts 46 are welded.
- the mould container parts 3 are provided on the outer side of wall 40 thereof with welded anti-leakage strips 56 and 58 ( Figure 2 ).
- the front anti-leakage strip 56 arranged on the front side of mould container part 3 fits substantially against the rear anti-leakage strip 58 of an adjacent mould container part 3 (not shown) in front of it, so that only a small gap remains therebetween.
- the embodiments as shown in figures 3 and 4 comprise a base part 24 which is fixed to wall 40 of mould container part 3. Resting on the upper side of base part 24 is a wearing part 28 which lies with its upper side substantially level with the upper side of wall 40. When wall 40 wears during production of bricks, wearing part 28 will also wear. During repair operations the wall 40 can easily be milled off, after which the initial distance between upper side 32 of base part 24 and upper side 41 of wall 40 is restored by likewise milling off the upper side 32 of base part 24. The worn wearing part 29 is removed and a new, substantially non-worn wearing part is arranged above base part 24, once again with its upper side 33 substantially level with upper side 41 of wall 40.
- an intermediate part 25 Arranged in a highly advantageous embodiment between base part 24 and wearing part 29 is an intermediate part 25 which is provided on the side directed away from wall 40 with a recess 26 in which a seal 27 can be received.
- Figure 5 shows a conveyor 2 formed from connected mould container parts 3, wherein an enlarged detail view shows how two resilient seals 27 make resilient contact between two adjacent mould container parts 3 and so substantially completely close the space between the two adjacent mould container parts 3.
- Figure 6 shows an enlarged view of sealing device 22 according to the second embodiment, wherein an intermediate part 25 with seal 27 received therein is applied. As shown clearly in figure 6 , seal 27 extends further outward away from wall 40 than outer wall 37 of base part 24, outer wall 35 of intermediate part 25 and outer wall 39 of wearing part 28.
- Recess 26 preferably has a lower surface inclining in outward direction with an angle of inclination ⁇ , whereby recess 26 narrows toward the outside and seal 27 is retained to some extent.
- Both the first embodiment shown in figure 3 and the second embodiment shown in figure 6 are provided with a drilled hole 29 extending through base part 24, intermediate part 25 and wearing part 28.
- the wearing part 28 is provided with a threaded end in which bolt 30 can engage. Wearing part 28 and intermediate part 25 can then be fixed to base part 24 using a nut.
- a layer of material is milled away from the upper side 32 of base part 24 which corresponds to the sum of the layer with layer thickness S worn away during use ( figure 7 ) and the layer thickness V removed during levelling ( figure 8 ). Because a layer thickness S + V is removed from base part 24, the original distance from upper side 32 of base part 24 to upper side 41 of wall 40 is restored, and it is possible to either re-place a single wearing part 28 according to the first embodiment or to re-place a combination of wearing part 28 and intermediate part 25 according to the second embodiment. Such wearing parts 28 and intermediate parts 25 are standard parts and can therefore be readily available in stock. Grinding away and re-welding, with all the associated drawbacks, hereby become wholly unnecessary.
- mould cavity 19 in mould container 16 has also become a distance S + V less deep.
- the legs 42 functioning as spacers attached to the underside of ejector base 38 are likewise shortened by a layer distance S + V. It is otherwise also possible in some cases to set the brick height with a support device - not further described here -, in which case shortening of legs 42 may be unnecessary.
- the mould container parts 3 are provided on both side walls 40 thereof with a sealing device 22 according to the invention.
- a sealing device 22 In the case of a shorter distance between successive mould container parts 3 it is also possible to envisage only one side wall 40 being provided with a sealing device 22.
- Such a single-sided embodiment also expressly falls within the intended scope of protection.
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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)
Abstract
The invention further relates to such a sealing device, a mould container pressing device provided therewith and a method for application thereof.
Description
- The present invention relates to a mould container part of a mould container pressing device provided with a sealing device, and to such a sealing device and method for application thereof.
- The invention also relates to a mould container pressing device for manufacturing green bricks from clay for the brick manufacturing industry, comprising a mould container part with such a sealing device.
- The invention relates more particularly to a mould container part for manufacturing green bricks therein with a mould container pressing device, the mould container part comprising:
- one or more mould containers, each having a mould cavity for forming a green brick from clay therein;
- coupling means with which mould container parts can be mutually coupled; and
- a sealing device extending from a wall of the mould container part and suitable for sealing to at least large extent therewith an intermediate space present between coupled mould container parts.
- In the prior art the sealing device consists of anti-leakage strips welded against the wall of the mould container part. Because these anti-leakage strips and the upper side of the mould container parts wear during the production of bricks, a periodic repair is necessary every 1 to 1.5 years. Because the anti-leakage strips are fixedly welded, during a repair these welds have to be regularly ground away, welded in again and subsequently milled level again. In addition to the fact that these repairs are very time-consuming and laborious, they have the further drawback that with some regularity a mould container part curves as a result of the heat released during the welding.
- An object of the present invention is to provide a device and method wherein the stated drawbacks do not occur, or at least do so to lesser extent.
- Said object is achieved according to the invention with a mould container part for manufacturing green bricks therein with a mould container pressing device, the mould container part comprising:
- one or more mould containers, each having a mould cavity for forming a green brick from clay therein;
- coupling means with which mould container parts can be mutually coupled; and
- a sealing device extending from a wall of the mould container part and suitable for sealing to at least large extent therewith an intermediate space present between coupled mould container parts, the sealing device comprising:
- a base part which is arranged against the wall and the upper side of which is situated a distance from the upper side of the wall;
- a wearing part which can be arranged releasably above the base part and the upper side of which lies substantially flush with the upper side of the wall in arranged position;
- an intermediate part which can be arranged between the base part and the wearing part;
- wherein the intermediate part is provided on at least a side thereof with a recess which is directed away from the wall in mounted position; and
- wherein a substantially resilient seal can be received in the recess of the intermediate part such that this seal extends away from the wall of the mould container part to a position beyond the sides of the base part, the intermediate part and the wearing part directed away from the wall of the mould container part.
- The mould container parts can be mutually coupled by means of the coupling means, and can thus be connected to form a conveyor of a mould container pressing device. In coupled position an intermediate space is present between the successive mould container parts between which clay residues released during pressing of green bricks can drop. The sealing device spans this intermediate space.
- Because the base part is arranged against the wall of the mould container part with its upper side at a distance from the upper side of the wall, a height difference is created in which an easily replaceable wearing part can be arranged. This height difference can moreover also be restored after the upper side of a somewhat worn mould container part has been milled level since the same quantity of material can be removed from the upper side of the base part. After placing of a replacement wearing part the upper side of the wearing part and the upper side of the wall are substantially flush, i.e. these upper sides connect substantially level and almost without height difference to each other.
- The sealing device according to the invention thus makes it possible to repair a mould container part with a standard wearing part which can easily be held in stock. Laborious welding with the associated risks of curving of the mould container parts hereby becomes wholly unnecessary.
- The resilient seal which can be received in the recess of the intermediate part is suitable for the purpose of forming a resilient seal with an identical sealing device of an adjacent mould container part. Such a resilient contact between two adjacent resilient seals guarantees a continuous seal which is also wear-resistant.
- According to a preferred embodiment, the base part and intermediate part together have a thickness corresponding to the distance at which the upper side of the base part is located from the upper side of the wall, so that in the arranged position the upper side of the wearing part lies substantially flush with the upper side of the wall.
- According to a further preferred embodiment, the mould container part is provided on both walls with a sealing device.
- Although it is possible to envisage applying alternately a mould container part with sealing devices on both sides and a mould container part wholly without such sealing devices, according to yet another preferred embodiment the coupling means are link parts of a chain part; and the sealing device and the central axis of the link part extend substantially the same distance away from the wall of the mould container part. This ensures that substantially the whole intermediate space between mutually coupled mould container parts is spanned by two adjacent sealing devices, whereby substantially no clay or other unwanted material can pass therebetween.
- In the preferred embodiment with the resilient seal extending away from the wall of the mould container part to a position beyond the sides of the base part, the intermediate part and the wearing part directed away from the wall of the mould container part, there results a resilient contact surface between the resilient seals of sealing devices arranged on successive mould container parts. This resilient contact guarantees a continuous seal which is also wear-resistant.
- According to yet another preferred embodiment, the mould container part is provided on only one wall with a sealing device. In an embodiment wherein there is only a limited distance between successive mould container parts of a conveyor of a mould container pressing device, a single sealing device can suffice for the purpose of substantially wholly spanning the distance between the successive mould container parts. It is noted that, in the case of a single-sided embodiment, the sealing device is preferably applied in each case on the same side of the mould container part.
- According to yet another preferred embodiment, the coupling means are link parts of a chain part; and the sealing device extends further than the central axis of the link part extends away from the wall of the mould container part. It is hereby possible, even with a single-sided sealing device arranged on the mould container part, to span substantially the whole distance between successive mould container parts and thus seal them against clay and other contaminants falling therebetween.
- The invention further relates to a sealing device evidently intended for use on a mould container part as described above, the sealing device comprising:
- a base part which can be arranged against a wall of the mould container part;
- a wearing part which can be arranged releasably above the base part;
- an intermediate part which can be arranged between the base part and the wearing part;
- wherein the intermediate part is provided on at least a side thereof with a recess; and
- wherein a substantially resilient seal can be received in the recess of the intermediate part such that this seal extends away from the intermediate part to a
- position beyond the base part, the intermediate part and the wearing part. In the arranged position the upper side of the wearing part lies substantially flush with the upper side of the wall of the mould container part.
- The invention further relates to a mould container pressing device for manufacturing green bricks from clay for the brick manufacturing industry, comprising:
- a circulating conveyor formed from connected mould conveyor parts, wherein each mould conveyor part comprises one or more mould containers, each with a mould cavity;
- wherein at least one mould container part as described above is applied.
- The invention also relates to a method for applying a sealing device as described above, the method comprising the steps of:
- removing the worn wearing part from a mould container part having an upper side of the wall and wearing part worn away through use;
- levelling the upper side of the wall by removing a layer of material therefrom;
- removing from the upper side of the base part a layer of material with a layer thickness which is the sum of the layer thickness worn away through use and the layer thickness removed during the step of levelling the upper side of the wall;
- arranging a substantially non-worn wearing part releasably above the base part such that in the arranged position the upper side thereof lies substantially flush with the upper side of the wall.
- According to a preferred embodiment, the method further comprises the step, if desired, of replacing the intermediate part and/or replacing the resilient seal.
- According to a further preferred embodiment, the method further comprises the step of likewise shortening legs functioning as spacers by a layer thickness, the layer thickness being the sum of the layer thickness worn away through use and the layer thickness removed during the step of levelling the upper side of the wall.
- The height of the green brick to be formed in the mould cavity of the mould container can be set by means of a movable base. The depth of the mould cavity remains unchanged by shortening the legs, functioning as spacers for the movable base, by a distance corresponding to the layer thickness which is the sum of the layer thickness worn away through use and the layer thickness removed during the step of levelling the upper side of the wall. After firing thereof the green bricks to be formed will produce bricks with unchanged brick height.
- According to yet another preferred embodiment, the method further comprises the use of the mould container part as described above.
- Preferred embodiments of the present invention are further elucidated in the following description with reference to the drawing, in which:
-
Figure 1 is a perspective view of a device for manufacturing green bricks from clay for the brick manufacturing industry; -
Figure 2 is a cut-away side view of a mould container part of the mould container pressing device shown infigure 1 , wherein the mould container part is provided with a prior art sealing device; -
Figure 3 is a cut-away side view of a mould container part of the mould container pressing device shown infigure 1 , wherein the mould container part is provided with a sealing device according to a first preferred embodiment of the invention; -
Figure 4 is a cut-away side view of a mould container part provided with a sealing device according to a second preferred embodiment of the invention; -
Figure 5 is a cut-away side view of mould container parts connected to form a conveyor, with a detailed view of two sealing devices of two connected mould container parts; -
Figure 6 shows a sealing device according to the second embodiment in a first state; -
Figure 7 shows the sealing device offigure 6 in a second state; -
Figure 8 shows the sealing device offigures 6 and 7 in a third state; -
Figure 9 shows an overview of a mould container part with a sealing device; -
Figure 10 shows the sealing device offigures 6-8 in a fourth state; and -
Figure 11 is a detailed side view of a displaceable base with leg-like spacers arranged thereon. -
Figure 1 shows a mould container pressing device 1 for manufacturinggreen bricks 18 from clay for the brick manufacturing industry, comprising a circulatingconveyor 2 formed from connectedmould container parts 3, wherein eachmould container part 3 comprises one ormore mould containers 16, each with a mould cavity 19, areservoir 4 for clay arranged abovemould containers 16, clay arranging means for arranging clay fromreservoir 4 inmould containers 16 during a moulding stage, means for covering an open side ofmould containers 16 with take-offplates 11, at least oneejecting device 20 arranged onconveyor 2 and movable relative toconveyor 2, wherein ejectingdevice 20 is adapted to eject agreen brick 18 present inmould container 16 onto an associated take-off plate 11 during a release stage, wherein ejectingdevice 20 comprises at least onebase 38 which is displaceable inmould container 16 and which supports during the moulding stage against a stepped supportdevice using legs 24, wherein using an adjustable support height the height of thegreen brick 18 to be formed inmould container 16 is adjustable via the depth ofmould container 16. - The mould container pressing device 1 comprises a
chain conveyor 2, also referred to as mould conveyor. Thischain conveyor 2 is assembled from a large number of mutually connectedmould container parts 3, each comprising a number ofmould containers 16. Eachmould container 16 comprises a mould cavity 19 in which clay can be received for the purpose of forming agreen brick 18.Mould container parts 3 are coupled to each other and provided withrollers 15 rotatable overgirders 14 so as to together thus form the chain - or conveyor - of chain conveyor 2 - or mould conveyor. The chain is driven by one of thechain wheels 13 or by both chain wheels 13 (wherein for the sake of clarity only the right-hand chain wheel is shown infigure 1 ). The transporting direction of the chain conveyor is to the left in the shown embodiment offigure 1 (P1 infigure 1 ). A conveyor rotating to the right is of course likewise possible. - Placed above
mould containers 16 is areservoir 4 for clay which is kept in continuous movement by an agitator 5 driven by motor 6. Clay is fed toreservoir 4 by a circulating conveyor 7. The clay is carried out ofreservoir 4 intomould 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 further comprises a
conveyor 10 with which take-offplates 11 are supplied.Conveyor 10 also ensures that a take-off plate 11 is placed on top of each passingmould container part 3. Take-offplates 11 remain pressed against the respectivemould container parts 3 by aholding mechanism 12 when they pass over the left-hand chain wheel (not shown) on the discharge side of the device. After turning over of themould container part 3, thegreen bricks 18 still lie onplates 11. - An ejecting
device 20 as shown infigures 2-4 presses thegreen bricks 18 out ofmould containers 16 permould container part 3.Green bricks 18 herein remain lying onplates 11 after they have been released frommould containers 16.Plates 11 withgreen bricks 18 thereon are then discharged for further treatment, such as drying and firing. -
Figures 2-4 show amould container part 3 assembled fromdifferent mould containers 16 connected to form a unit.Mould container part 3 further comprises achain part 44 onto which linkparts 46 are welded. When differentmould container parts 3 withchain parts 44 are placed adjacently of each other and ashaft 52 is inserted through the link parts, thesemould container parts 3 are connected to form achain conveyor 2. Situated on the end ofshaft 52 is arunner 48. Abolt 56 is also provided to lock theshaft 52 throughlink parts 46. - In order to prevent clay, which is pressed into
mould containers 16 for the purpose of forming agreen brick 18 therein and which is spilled, from dropping downward between successivemould container parts 3, according to the prior art themould container parts 3 are provided on the outer side ofwall 40 thereof with weldedanti-leakage strips 56 and 58 (Figure 2 ). The frontanti-leakage strip 56 arranged on the front side ofmould container part 3 fits substantially against the rearanti-leakage strip 58 of an adjacent mould container part 3 (not shown) in front of it, so that only a small gap remains therebetween. - The upper side of the mould container parts and the
anti-leakage strips anti-leakage strips - The embodiments as shown in
figures 3 and4 comprise abase part 24 which is fixed to wall 40 ofmould container part 3. Resting on the upper side ofbase part 24 is a wearingpart 28 which lies with its upper side substantially level with the upper side ofwall 40. Whenwall 40 wears during production of bricks, wearingpart 28 will also wear. During repair operations thewall 40 can easily be milled off, after which the initial distance betweenupper side 32 ofbase part 24 andupper side 41 ofwall 40 is restored by likewise milling off theupper side 32 ofbase part 24. The worn wearingpart 29 is removed and a new, substantially non-worn wearing part is arranged abovebase part 24, once again with itsupper side 33 substantially level withupper side 41 ofwall 40. - Arranged in a highly advantageous embodiment between
base part 24 and wearingpart 29 is anintermediate part 25 which is provided on the side directed away fromwall 40 with arecess 26 in which aseal 27 can be received. -
Figure 5 shows aconveyor 2 formed from connectedmould container parts 3, wherein an enlarged detail view shows how tworesilient seals 27 make resilient contact between two adjacentmould container parts 3 and so substantially completely close the space between the two adjacentmould container parts 3. -
Figure 6 shows an enlarged view of sealingdevice 22 according to the second embodiment, wherein anintermediate part 25 withseal 27 received therein is applied. As shown clearly infigure 6 , seal 27 extends further outward away fromwall 40 thanouter wall 37 ofbase part 24, outer wall 35 ofintermediate part 25 andouter wall 39 of wearingpart 28. -
Recess 26 preferably has a lower surface inclining in outward direction with an angle of inclination α, wherebyrecess 26 narrows toward the outside and seal 27 is retained to some extent. - Both the first embodiment shown in
figure 3 and the second embodiment shown infigure 6 are provided with a drilledhole 29 extending throughbase part 24,intermediate part 25 and wearingpart 28. In a preferred embodiment the wearingpart 28 is provided with a threaded end in whichbolt 30 can engage. Wearingpart 28 andintermediate part 25 can then be fixed tobase part 24 using a nut. - When
upper side 41 ofwall 40 wears together withupper side 33 of wearingpart 28 during use - indicated with wear thickness S infigure 7 - it is desirable to level theupper sides wall 40 and wearingpart 28. Afternut 31 has been unscrewed, wearingpart 29 is removed together withbolt 30 from drilledhole 29. Theupper side 41 ofwall 40 is then milled level, wherein a layer thickness V is removed from upper side 41 (figure 8 ). - Indicated with L in
figure 9 are locations where a further operation can or should also be performed in order on the one hand to restore sealingdevice 22 to its original state (figure 10 ) and on the other to ensure that the brick height remains within the desired tolerances (figure 11 ). - As shown in
figure 10 , a layer of material is milled away from theupper side 32 ofbase part 24 which corresponds to the sum of the layer with layer thickness S worn away during use (figure 7 ) and the layer thickness V removed during levelling (figure 8 ). Because a layer thickness S + V is removed frombase part 24, the original distance fromupper side 32 ofbase part 24 toupper side 41 ofwall 40 is restored, and it is possible to either re-place a single wearingpart 28 according to the first embodiment or to re-place a combination of wearingpart 28 andintermediate part 25 according to the second embodiment. Such wearingparts 28 andintermediate parts 25 are standard parts and can therefore be readily available in stock. Grinding away and re-welding, with all the associated drawbacks, hereby become wholly unnecessary. - Because
upper side 41 ofwall 40 has had a layer thickness S + V removed, mould cavity 19 inmould container 16 has also become a distance S + V less deep. In order to ensure thatgreen bricks 18 with the original brick height are manufactured, thelegs 42 functioning as spacers attached to the underside ofejector base 38 are likewise shortened by a layer distance S + V. It is otherwise also possible in some cases to set the brick height with a support device - not further described here -, in which case shortening oflegs 42 may be unnecessary. - In the shown embodiments the
mould container parts 3 are provided on bothside walls 40 thereof with a sealingdevice 22 according to the invention. In the case of a shorter distance between successivemould container parts 3 it is also possible to envisage only oneside wall 40 being provided with a sealingdevice 22. Such a single-sided embodiment also expressly falls within the intended scope of protection. - Although they show preferred embodiments of the invention, the above described embodiments are intended only for the purpose of illustrating the present invention and not to limit the scope of the invention in any way. The scope of the invention is therefore defined solely by the following claims.
Claims (13)
- Mould container part for manufacturing green bricks (18) therein with a mould container pressing device (1), the mould container part (3) comprising:- one or more mould containers (16), each having a mould cavity (19) for forming a green brick (18) from clay therein;- coupling means (46) with which the mould container parts (3) can be mutually coupled; and- a sealing device (22) extending from a wall (40) of the mould container part (3) and suitable for sealing to at least large extent therewith an intermediate space present between coupled mould container parts (3), the sealing device (22) comprising:- a base part (24) which is arranged against the wall (40) and the upper side (32) of which is situated a distance (D) from the upper side (41) of the wall (40);- a wearing part (28) which can be arranged releasably above the base part (24) and the upper side (33) of which lies substantially flush with the upper side (41) of the wall (40) in arranged position;- an intermediate part (25) which can be arranged between the base part (24) and the wearing part (28);- wherein the intermediate part (25) is provided on at least a side (35) thereof with a recess (26) which is directed away from the wall (40) in mounted position; and- wherein a substantially resilient seal (27) can be received in the recess (26) of the intermediate part (25) such that this seal (27) extends away from the wall (40) of the mould container part (3) to a position beyond the sides (37, 35, 39) of the base part (24), the intermediate part (25) and the wearing part (28) directed away from the wall (40) of the mould container part (3).
- Mould container part as claimed in claim 1,
wherein the base part (24) and intermediate part (25) together have a thickness (D) corresponding to the distance at which the upper side (32) of the base part (24) is located from the upper side (41) of the wall (40), so that in the arranged position the upper side (33) of the wearing part (28) lies substantially flush with the upper side (41) of the wall (40). - Mould container part as claimed in claim 1 or 2, wherein the mould container part (3) is provided on both walls (40) with a sealing device (22).
- Mould container part as claimed in claim 3,
wherein- the coupling means are link parts (46) of a chain part (44); and- the sealing device (22) and the central axis (47) of the link part (46) extend substantially the same distance away from the wall (40) of the mould container part (3). - Mould container part as claimed in claim 1 or 2, wherein the mould container part (3) is provided on only one wall (40) with a sealing device (22).
- Mould container part as claimed in claim 5,
wherein- the coupling means are link parts (46) of a chain part (44); and- the sealing device (22) extends further than the central axis (47) of the link part (46) extends away from the wall (40) of the mould container part (30. - Sealing device, evidently intended for use on a mould container part (3) as described in any of the claims 1-6, the sealing device (22) comprising:- a base part (24) which can be arranged against a wall (40) of the mould container part (3);- a wearing part (28) which can be arranged releasably above the base part (24);- an intermediate part (25) which can be arranged between the base part (24) and the wearing part (28);- wherein the intermediate part (25) is provided on at least a side (35) thereof with a recess (26); and- wherein a substantially resilient seal (27) can be received in the recess (26) of the intermediate part (25) such that this seal (27) extends away from the intermediate part (25) to a position beyond the base part (24), the intermediate part (25) and the wearing part (28).
- Sealing device as claimed in claim 7, further comprising one or more of the measures described in claims 1-6.
- Mould container pressing device for manufacturing green bricks (18) from clay for the brick manufacturing industry, comprising:- a circulating conveyor (2) formed from connected mould conveyor parts (3), wherein each mould conveyor part (3) comprises one or more mould containers (16), each with a mould cavity (19);- wherein at least one mould container part (3) as claimed in one or more of the claims 1-6 is applied.
- Method for applying a sealing device (22) as described in one or more of the claims 1-9, comprising the steps of:- removing the worn wearing part (28) from a mould container part (3) having an upper side (41) of the wall (40) and wearing part (28) worn away through use;- levelling the upper side (41) of the wall (40) by removing a layer of material (V) therefrom;- removing from the upper side (32) of the base part (24) a layer of material with a layer thickness (S+V) which is the sum of the layer thickness (S) worn away through use and the layer thickness (V) removed during the step of levelling the upper side (41) of the wall (40);- arranging a substantially non-worn wearing part (28) releasably above the base part (24) such that in the arranged position the upper side (33) thereof lies substantially flush with the upper side (41) of the wall (40).
- Method as claimed in claim 10, further comprising the step, if desired, of replacing the intermediate part (25) and/or replacing the resilient seal (27).
- Method as claimed in claim 10 or 11, further comprising the step of likewise shortening legs (42) functioning as spacers by a layer thickness (S+V), this layer thickness (S+V) being the sum of the layer thickness (S) worn away through use and the layer thickness (V) removed during the step of levelling the upper side (41) of the wall (40).
- Method as claimed in any of the claims 10-12, wherein a mould container part according to any of the claims 1-6 is applied.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL2005214A NL2005214C2 (en) | 2010-08-11 | 2010-08-11 | A SHAPED PART FOR A SEALING DEVICE, AND SUCH SEALING DEVICE AND METHOD FOR USE THEREOF. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2418057A1 true EP2418057A1 (en) | 2012-02-15 |
EP2418057B1 EP2418057B1 (en) | 2016-02-10 |
Family
ID=43608256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11176804.0A Active EP2418057B1 (en) | 2010-08-11 | 2011-08-08 | A mould container part provided with a sealing device, and method for application thereof |
Country Status (2)
Country | Link |
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EP (1) | EP2418057B1 (en) |
NL (1) | NL2005214C2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3444087A1 (en) * | 2017-08-16 | 2019-02-20 | Beheermaatschappij De Boer Nijmegen B.V. | Mould container part provided with a sealing strip |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB326307A (en) * | 1929-02-12 | 1930-03-13 | Sydney Arthur Wright | Improvements in moulds for brick and tile making |
NL7209048A (en) * | 1971-07-08 | 1973-01-10 | ||
EP0140721A1 (en) * | 1983-08-05 | 1985-05-08 | Promotec (S.A.R.L.) | Equipment for moulding immediate discharge concrete articles |
EP0919346A1 (en) * | 1997-11-25 | 1999-06-02 | FOMB Officine Meccaniche Bongioanni S.r.l. | A process for quickly preparing a mould for clay manufactured articles |
EP0919345A1 (en) * | 1997-11-25 | 1999-06-02 | FOMB Officine Meccaniche Bongioanni S.r.l. | A process for preparing a mould with replaceable stamping surface for clay manufactured articles |
EP1595665A1 (en) * | 2004-05-13 | 2005-11-16 | Beheermaatschappij De Boer Nijmegen B.V. | Device and method for manufacturing green bricks |
-
2010
- 2010-08-11 NL NL2005214A patent/NL2005214C2/en active
-
2011
- 2011-08-08 EP EP11176804.0A patent/EP2418057B1/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB326307A (en) * | 1929-02-12 | 1930-03-13 | Sydney Arthur Wright | Improvements in moulds for brick and tile making |
NL7209048A (en) * | 1971-07-08 | 1973-01-10 | ||
EP0140721A1 (en) * | 1983-08-05 | 1985-05-08 | Promotec (S.A.R.L.) | Equipment for moulding immediate discharge concrete articles |
EP0919346A1 (en) * | 1997-11-25 | 1999-06-02 | FOMB Officine Meccaniche Bongioanni S.r.l. | A process for quickly preparing a mould for clay manufactured articles |
EP0919345A1 (en) * | 1997-11-25 | 1999-06-02 | FOMB Officine Meccaniche Bongioanni S.r.l. | A process for preparing a mould with replaceable stamping surface for clay manufactured articles |
EP1595665A1 (en) * | 2004-05-13 | 2005-11-16 | Beheermaatschappij De Boer Nijmegen B.V. | Device and method for manufacturing green bricks |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3444087A1 (en) * | 2017-08-16 | 2019-02-20 | Beheermaatschappij De Boer Nijmegen B.V. | Mould container part provided with a sealing strip |
NL2019423B1 (en) * | 2017-08-16 | 2019-02-25 | Beheermaatschappij De Boer Nijmegen B V | Mold container part provided with a sealing strip, as well as such a sealing strip |
Also Published As
Publication number | Publication date |
---|---|
EP2418057B1 (en) | 2016-02-10 |
NL2005214C2 (en) | 2012-02-14 |
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