EP1838507B1 - Procede et dispositif de production de modules creux - Google Patents

Procede et dispositif de production de modules creux Download PDF

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Publication number
EP1838507B1
EP1838507B1 EP06706224A EP06706224A EP1838507B1 EP 1838507 B1 EP1838507 B1 EP 1838507B1 EP 06706224 A EP06706224 A EP 06706224A EP 06706224 A EP06706224 A EP 06706224A EP 1838507 B1 EP1838507 B1 EP 1838507B1
Authority
EP
European Patent Office
Prior art keywords
spikes
compression
mould
height
compression mould
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.)
Not-in-force
Application number
EP06706224A
Other languages
German (de)
English (en)
Other versions
EP1838507A1 (fr
Inventor
Ulrich Backs
Klaus Dambauer
Norbert Kranzinger
Hans Georg Berghammer
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.)
Hess Maschinenfabrik GmbH and Co KG
Original Assignee
Hess Maschinenfabrik GmbH and Co KG
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 Hess Maschinenfabrik GmbH and Co KG filed Critical Hess Maschinenfabrik GmbH and Co KG
Publication of EP1838507A1 publication Critical patent/EP1838507A1/fr
Application granted granted Critical
Publication of EP1838507B1 publication Critical patent/EP1838507B1/fr
Not-in-force 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
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
    • 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
    • B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
    • B28B7/18—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article
    • B28B7/183—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article for building blocks or similar block-shaped objects

Definitions

  • the invention relates to a method and an apparatus for producing hollow building blocks according to claim 1 or claim 8.
  • EP 0 706 864 It is known to produce hollow blocks in that a mold is used with vertically movable mandrels. In this case, granular molding material is introduced as a humid concrete mortar in the mold with raised thorns, and then the mandrels are raised beyond the height of the mold out further, after which a pressing operation by means of a pressed from above on the filled molding material press plate into which the mandrels can dip , is carried out, wherein during the compacting process by pressing the mandrels are withdrawn again.
  • the object of the invention is therefore to provide a method according to claim 1 and a suitable device according to claim 8, which make it possible to produce hollow blocks regardless of their height with sufficient compression over the entire height of the stone.
  • the compaction is carried out in a plurality of stages, in which alternately pressing plate and mandrels are moved downward. This ensures that is first compressed by the action of the press plate of the granular molding material in the area adjacent to the top. Here, the grains of the molding material are pressed against the mandrels. The latter are then moved down a bit. By this downward movement, the static friction between the grains of the molding material and the thorns under entrainment and thus loosening of the grains is overcome. This is followed by a new pressing through the press plate, whereby the grains turn - and in a deeper layer - are pressed against the mandrels, etc.
  • the pressing force can be gradually applied to the grain layer at the bottom of the mold, so that the height of the Stone plays no role and small distances between the thorns, for example, 0.5 to 1 cm with equally small mandrel width can be readily realized.
  • Dahote device comprises a machine frame 1, which receives a press table 2, a lower lifting ram 3 and an upper ram 4.
  • the press table 2 comprises a tabletop 5 for placing a box-shaped mold 6.
  • Above the mold 6 is a horizontally along a guide 7 movable filling device 8, such as a filling provided, with which the mold 6 can be filled with granular molding material F.
  • the lifting ram 3 is used for vertical movement of a guided along vertical guide rods 9 support plate 10, the upper side upwardly projecting mandrels 11, which are inserted through openings 12 in the tabletop 5 from below into the mold 6 and also beyond this protruding.
  • the ram 4 carries a along the guide rods 9 vertically guided support plate 13 for a spaced therefrom arranged pressing plate 14.
  • the pressing plate 14 has openings 15 for the mandrels 11, so that they can enter the pressing plate 14 and through it.
  • the pressure plate 14 is movable into the press mold 6 by appropriate loading of the press ram 4.
  • a vibrator 16 may be disposed on the mold 6 and / or a vibrator 17 on the support plate 10 in order to perform corresponding Hinttelmosen these parts can.
  • the mold 6 is vertically movable via actuating cylinder 18, wherein the actuating cylinder 18 engage on projecting frame parts 19 of the mold 6.
  • first of all the pressing mold 6 sitting on the table top 5 is to be filled with moist (earth-moist) molding material F.
  • moist (earth-moist) molding material F For this purpose, first the mandrels 11 are retracted at most to the upper edge of the mold 6 in this.
  • the filled accordingly with molding material F filling device 8 is moved over the mold 6 and filled the molding material F in the mold 6. Since the pins 11 in this case at most up to the top of the mold protrude upwards, they interfere the method of the filling device 8 not.
  • the filling device 8 with a vibratory mounted sieve plate (not shown) with a corresponding oscillating drive for this purpose so as to achieve the most uniform distribution of the molding material F in the mold 6 by trickling. After filling, the. Filling device 8 moved back to its original position.
  • the mandrels 11 are first driven further upwards so that they protrude beyond the mold 6. This can conveniently be shaken, whereby the mold material F located in the mold 6 already collapses somewhat in height.
  • the pressing plate 14 is shut down by means of the ram 4, whereby the mandrels 11 dive into the through openings 15 of the pressing plate 14 and pass through it (to facilitate this, the mandrels 11 may be sharpened end), so that they upper side by the press plate 14 are led.
  • the pressure plate 14 finally reaches the surface of the molding material F in the height h 0 and presses this immersed in the mold 6 with predetermined force, so that the molding material F in the mold 6 only has a height h 1 .
  • the pressing force acting on the molding material F is greatest at the top and decreases continuously downwards.
  • the spikes 11 are retracted a small way d in the downward direction.
  • the static friction between compressed molding material F in the upper side region and the spikes 11 is overcome.
  • first a downward train is exerted on the solidified layer of the molding material F in the upper-side region, which decreases accordingly at the moment of overcoming the static friction, since then only sliding friction takes place.
  • the pressing plate 14 presses again on the molding material F. Since the layer of molding material F is already compacted in the upper side region, the pressing force acts on the underlying layer and compacts them so that their grains are pressed against the mandrels 11. Subsequently the mandrels 11 are moved down again by the distance d, overcoming the static friction resulting from the preceding pressing, etc. In this way, the molding material F is densified in layers until the bottom layer is reached and compacted.
  • the mold 6 can then after complete retraction of the mandrels 11 (retraction path d n in Fig. 2 ) started up with the stone blank thus formed, a storage board interposed and the stone blank placed on this under appropriate action of the pressing plate 14 and transported away.
  • the pressing plate 14 can act in each stage of the compression with a predetermined force, in which case the blank height h n per stage n decreases continuously until a predetermined blank height is reached.
  • the withdrawal path d of the mandrels 11 is expediently constant or increasing progressively.
  • the compression is expediently carried out by means of a control 20, which on the one hand controls the force with which the pressing plate 14 acts on the molding material F, and on the other hand, the return path d of the mandrels 11.
  • the resulting blank height can be determined in each case via their direct or indirect measurement, for example by means of a position sensor 21 for the ram 4 or a moving component and the filling amount for the filling device 8 are dimensioned accordingly, so that after compacting a predetermined blank height h n results.
  • molding material F Particularly suitable as molding material F are hydraulically curing mixtures which contain cement, lime, fly ash or the like as a binder, optionally mixed, and aggregates such as quartz sand, split or, in particular, lightweight aggregates such as natural pumice, expanded clay, tuff, optionally in admixture.
  • aggregates such as quartz sand, split or, in particular, lightweight aggregates such as natural pumice, expanded clay, tuff, optionally in admixture.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Fish Paste Products (AREA)

Claims (8)

  1. Procédé de réalisation de parpaings creux, dans lequel sont utilisées une matrice de compression (6), ouverte sur le dessus et munie de broches (11) aptes à être déplacées vers le haut jusqu'au-dessus de la hauteur de la matrice de compression (6), et une plaque de pression (14), qui est apte à être déplacée vers l'intérieur de la matrice de compression (6) et dans laquelle les broches (11) peuvent pénétrer par le bas, sachant qu'après le remplissage de la matrice de compression (6) avec un matériau à mouler (F) granuleux, les broches (11) peuvent être déplacées vers le haut au-dessus de la hauteur de la matrice de compression (6) jusqu'à pénétrer dans la plaque de pression (14) et ensuite le matériau à mouler (F) est compacté sous l'effet de l'introduction de la plaque de pression (14) dans la matrice de compression (6) moyennant le retrait des broches (11), caractérisé en ce que la plaque de pression (14) et les broches (11) sont déplacées pendant le compactage en alternance vers le bas en plusieurs étapes.
  2. Procédé selon la revendication 1, caractérisé en ce que le matériau à mouler (F) est secoué pendant que les broches (11) se déplacent vers le haut au-delà de la matrice de compression (6).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'à chaque étape, la plaque de pression (14) agit avec la même force de pression sur le matériau à mouler.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que, dans chaque étape, les broches (11) sont déplacées vers le bas sur une même distance.
  5. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les broches (11) sont déplacées vers le bas selon une distance croissante d'une étape à l'autre.
  6. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la hauteur d'ébauche obtenue est mesurée et la quantité de matériau à mouler (F) à introduire dans la matrice de compression (6) est déterminée en fonction de la valeur de mesure pour obtenir une hauteur d'ébauche prédéfinie.
  7. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le matériau à mouler (F) est secoué pendant un blocage des broches (11).
  8. Dispositif de réalisation de parpaings creux, comportant une matrice de compression (6) ouverte sur le dessus et munie de broches (11) aptes à être déplacées vers le haut jusqu'au-dessus de la hauteur de la matrice de compression (6), et comportant une plaque de pression (14), qui est apte à être déplacée vers l'intérieur de la matrice de compression (6) et dans laquelle les broches (11) peuvent pénétrer par le bas, sachant qu'après le remplissage de la matrice de compression (6) avec un matériau à mouler (F) granuleux, les broches (11) peuvent être déplacées vers le haut au-dessus de la hauteur de la matrice de compression (6) jusqu'à pénétrer dans la plaque de pression (14) et ensuite le matériau à mouler (F) est compacté sous l'effet de l'introduction de la plaque de pression (14) dans la matrice de compression (6) moyennant le retrait des broches (11), caractérisé en ce qu'il est prévu un dispositif de commande (20), par lequel la plaque de pression (14) et les broches (11) sont déplacées pendant le compactage en alternance vers le bas en plusieurs étapes.
EP06706224A 2005-01-19 2006-01-13 Procede et dispositif de production de modules creux Not-in-force EP1838507B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005002497A DE102005002497B3 (de) 2005-01-19 2005-01-19 Verfahren und Vorrichtung zum Herstellen von Hohlbausteinen
PCT/EP2006/000263 WO2006077053A1 (fr) 2005-01-19 2006-01-13 Procede et dispositif de production de modules creux

Publications (2)

Publication Number Publication Date
EP1838507A1 EP1838507A1 (fr) 2007-10-03
EP1838507B1 true EP1838507B1 (fr) 2009-11-11

Family

ID=36046811

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06706224A Not-in-force EP1838507B1 (fr) 2005-01-19 2006-01-13 Procede et dispositif de production de modules creux

Country Status (4)

Country Link
EP (1) EP1838507B1 (fr)
AT (1) ATE448064T1 (fr)
DE (2) DE102005002497B3 (fr)
WO (1) WO2006077053A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102717422A (zh) * 2012-06-11 2012-10-10 靳光明 一种小型制砖机

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104128985A (zh) * 2014-07-31 2014-11-05 浙江立鑫高温耐火材料有限公司 一种用于耐火砖的压制模具
CN104149168A (zh) * 2014-07-31 2014-11-19 浙江立鑫高温耐火材料有限公司 一种耐火砖的压制模具
CN104972546A (zh) * 2015-06-29 2015-10-14 句容泰博尔机械制造有限公司 移动单模制砖机
CN105690542B (zh) * 2016-03-02 2017-11-03 哈尔滨工业大学 一种试验用砌块加工装置
CN112621991A (zh) * 2020-11-17 2021-04-09 临泉县睿鑫建材有限公司 一种空心砖生产用加工模具

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT402375B (de) * 1994-10-14 1997-04-25 Kranzinger Norbert Verfahren und vorrichtung zum herstellen von hohlbausteinen
DE19533903C1 (de) * 1995-09-13 1997-04-03 Netzsch Erich Holding Presse, insbesondere für keramische Massen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102717422A (zh) * 2012-06-11 2012-10-10 靳光明 一种小型制砖机
CN102717422B (zh) * 2012-06-11 2014-07-30 靳光明 一种小型制砖机

Also Published As

Publication number Publication date
DE502006005334D1 (de) 2009-12-24
WO2006077053A1 (fr) 2006-07-27
EP1838507A1 (fr) 2007-10-03
DE102005002497B3 (de) 2006-06-01
ATE448064T1 (de) 2009-11-15

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