EP0434863B1 - Presse revolver pour le pressage de masses céramiques et procédé pour le fonctionnement de la presse revolver - Google Patents

Presse revolver pour le pressage de masses céramiques et procédé pour le fonctionnement de la presse revolver Download PDF

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Publication number
EP0434863B1
EP0434863B1 EP89124129A EP89124129A EP0434863B1 EP 0434863 B1 EP0434863 B1 EP 0434863B1 EP 89124129 A EP89124129 A EP 89124129A EP 89124129 A EP89124129 A EP 89124129A EP 0434863 B1 EP0434863 B1 EP 0434863B1
Authority
EP
European Patent Office
Prior art keywords
drum
press
piston
hydraulic motor
revolving
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.)
Expired - Lifetime
Application number
EP89124129A
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German (de)
English (en)
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EP0434863A1 (fr
Inventor
Rainer Händle
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.)
Rieter-Werke Handle KG
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Rieter-Werke Handle KG
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Application filed by Rieter-Werke Handle KG filed Critical Rieter-Werke Handle KG
Priority to EP89124129A priority Critical patent/EP0434863B1/fr
Priority to DE8989124129T priority patent/DE58903547D1/de
Priority to AT89124129T priority patent/ATE85553T1/de
Priority to ES198989124129T priority patent/ES2039828T3/es
Publication of EP0434863A1 publication Critical patent/EP0434863A1/fr
Application granted granted Critical
Publication of EP0434863B1 publication Critical patent/EP0434863B1/fr
Priority to GR930400255T priority patent/GR3007037T3/el
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B28B5/10—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 carried on the circumference of a rotating drum
    • B28B5/12—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 carried on the circumference of a rotating drum intermittently rotated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/12—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space co-operating with moulds on the circumference of a rotating drum

Definitions

  • the invention relates to a turret press for pressing ceramic materials, in particular for the production of clay bricks, according to the preamble of claim 1.
  • the invention further relates to a method for operating such a turret press.
  • Turret presses according to the preamble of claim 1 have been known and in operation for decades (cf. FR-A-1284395).
  • the drive consists of an internal combustion engine or a high-performance electric motor, which uses mechanical gears to rotate the drum, the press piston to perform a vertical reciprocating movement, and the lifting device to perform a combined movement, consisting of a reciprocating movement directed towards the center of the drum Movement and a pivoting movement.
  • the conversion of the motor rotation into the linear movement required by the press piston is carried out by a cam eccentric, the conversion of the continuous motor rotation into a gradual movement of the drum through a Maltese cross.
  • the drum for the pressing process and thus also for the lifting process can be stopped for a predetermined period of time, but the movement of the lifting device combined from a reciprocating movement and a pivoting movement is a continuous movement, which means that the lifting device carries out a slight, albeit curved, movement at the time the compact is lifted, which can lead to changes or even damage to the folds, in particular in the case of delicate interlocking tiles.
  • power reducers are also required because the forces required to drive the drum and lifting device are significantly lower than those for the press piston.
  • the object of the present invention is therefore, the mentioned To overcome the disadvantages of conventional turret presses and to create a turret press for pressing ceramic masses in which the movement processes of the essential components can be changed in a simple and quick manner while maintaining a timely correspondence and can thus be adapted to the respective operating conditions, but the economic outlay is nevertheless within reasonable limits remains.
  • the solution to this problem results from the characterizing features of patent claim 1.
  • two separate hydraulic drives are used as the drive for the turret press, namely a hydraulic piston-cylinder unit which acts directly on the press piston and is driven at a high pressure required for the press pressure, and a hydraulic motor for which considerable lower hydraulic pressures are sufficient and the branching mechanical gear drives the drum and the lifting device.
  • the tactical correspondence is brought about by an electronic control device, whereby the combination of hydraulic drives and an electronic control device understandably does not pose any difficulties in changing the individual movement sequences of the various components without endangering the aforementioned tactical correspondence.
  • the lifting height and / or speed profile of the press ram can be changed, for example, as can the speed of rotation and / or the duration of the standstill phases of the drum, without endangering the cycle.
  • the turret press has a machine frame which consists of a base part 11, side stands 12 and a head part 13. These parts are non-positively connected to one another by means of hydraulically prestressed tie rods 14.
  • the machine frame 11, 12, 13 is thus a torsion and bending-resistant, self-supporting overall construction.
  • a shaft 15a on which a drum 15 is seated is rotatably mounted in the machine frame.
  • the drum 15 is a six-surface drum, with at least one lower mold (not shown) being attached to each of the six drum surfaces 15b.
  • a brake disc 16 is fastened on the rotary shaft 15a; the holding force is generated by means of hydraulic brake shoes 17.
  • the press piston 18a is located perpendicularly above the center of the drum 15.
  • At least one press mold (not shown) is attached to the lower end face of the press piston 18a, and the press piston 18 is guided in linear guides 19 in this way, for example by a adjustable 8-fold linear guide so that it can be moved up and down exactly vertically; this movement is brought about by a press cylinder 20 and two input cylinders 21 which can be actuated via proportional valves (not shown).
  • the press piston 18a is therefore actuated by the hydraulic piston-cylinder unit controlled by proportional valves and consisting of the cylinders 20 and 21.
  • the compacts are removed from the lower molds by a lifting device designated by 22, which is capable of carrying out two separate movements, namely a linear reciprocating movement towards and away from the center of the drum 15, as well as a combined movement , consisting of a linear back and forth movement and a swivel movement.
  • 23 denotes a common hydrostatic rotary drive in the form of a hydraulic motor, which actuates the drum rotation via positively driven gears 23a, 24a and the lifting device 22 via positively guided cam mechanisms 23b, 24b.
  • an electronic control device is indicated, which is connected to a monitor 25a.
  • the turret press works as follows. From a feed device (not shown), a piece of clay is applied to one of the lower molds located on one of the side surfaces of the drum 15, in the exemplary embodiment shown to the lower mold of the drum surface pointing obliquely upward to the left in FIG. 2. The task takes place during a standstill phase of the drum. At the next rotation of the drum, this lower mold, filled with a piece of clay, then comes under the press piston 18a, and during the next standstill phase of the drum 15 it moves vertically downward and presses the upper mold located on its end face against the lower mold, so that the piece of clay is pressed into a compact. The press piston 18a then moves vertically upwards again.
  • the lower mold with the compact reaches a position which in FIG. 2 corresponds to the drum surface which points to the top right.
  • the lifting device moves perpendicularly to the drum surface mentioned, picks up the compact, moves back again and then swivels counterclockwise vertically downwards, in which the compact onto a - not shown - removal device is delivered.
  • the work process described corresponds in principle to the work process of conventional turret presses.
  • the special features explained below result from the design of the turret press according to the invention.
  • the lifting height and speed curve of the lifting movement of the press piston 18a can also be adjusted quickly and easily by means of the control unit 25, even during the press operation, in that the control device 25 adjusts the proportional valves mentioned for the hydraulic piston-cylinder unit 20, 21 as desired.
  • Lift height and speed curve of the stroke can be optically displayed on the monitor 25a, so that the operator has an exact possibility of observation. Changes in the press nip, for example due to wear of the upper shape, or changes in the consistency of the clay material supplied can thus be determined immediately by the operator and taken into account.
  • a simple pressure relief valve also makes it possible to avoid damage to the pressure piece 18, for example if there is an extremely hard foreign body, for example a metal body, in the clay pad.
  • the lifting device 22 can be controlled in such a way that it moves linearly exactly perpendicularly to the lower mold as it approaches and is distant and only in starts pivoting a certain distance. An exact and gentle removal of the compact is achieved without impairing even the protruding, thin compact folds. A short standstill phase of the lifting device can be set at the time of sitting on the lower mold in order to improve the detachment process of the compact from the lower mold. Nevertheless, the necessary synchronization with the gradual rotation of the drum 15 is maintained because the lifting device and drum are driven by the same drive device, namely the hydraulic motor 23.
  • the hydraulic motor 23 can be followed by a worm gear, from which, on the one hand, the lifting device 22 is driven via a cam mechanism and, on the other hand, the drum 15 is driven via a cardan shaft and a step mechanism.
  • the lifting operations 22 and drum 15 are ensured in a coordinated manner with each other, i.e. for the lifting device a movement of a linear movement and a combined linear-pivoting movement, possibly with a standstill phase, and for the drum of a gradual rotary movement, coordinated with the linear up and down movement of the press ram.
  • the electronic control device 25 can be configured in any way; for example, in addition to the screen 25a, a printer can be connected that prints the respective values and curves. It is usually the case that with such Turret presses to produce a variety of different brick shapes. The following procedure is particularly advantageous.
  • the optimum data for the respective brick model that is to say the movement data for the drum, the press piston, the lifting device and, if appropriate, the feed device, are first determined in test runs. The resulting optimal data are then stored in a memory in association with the respective brick model. If a particular brick model is then to be produced during the actual operation of the turret press, the operator only has to enter the model code in the control unit 25; the special knowledge otherwise required for setting the turret press is therefore not necessary. If, during operation, the screen 25a shows deviations from the target values, conclusions can be drawn immediately, for example that the consistency of the sound supplied does not correspond to the required standard.
  • the turret press can be a so-called multi-field press, ie a press in which there are two or more sub-molds on each drum surface; of course, the same number of upper molds must then be provided on the end face of the press piston.
  • multi-field press ie a press in which there are two or more sub-molds on each drum surface; of course, the same number of upper molds must then be provided on the end face of the press piston.
  • the hydraulic piston-cylinder unit it is essential that it is a hydraulic direct drive with control options and high performance.
  • hydraulic motor and for the mechanical gearboxes connected to it but it is also essential here the most exact and easy controllability by electronic means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Press Drives And Press Lines (AREA)
  • Control Of Presses (AREA)

Claims (10)

  1. Presse revolver pour le pressage de masses céramiques, en particulier pour la fabrication de tuiles d'argile, comprenant un bâti de machine, un tambour à plusieurs faces, monté sur un arbre rotatif horizontal, au moins un moule inférieur étant disposé sur chaque face du tambour, un membre de transmission de la pression disposé au-dessus du tambour et comportant un coulisseau qui peut effectuer un mouvement ascendant et descendant vertical et qui porte, sur sa surface frontale inférieure, au moins un moule supérieur, un dispositif de démoulage pour expulser la pièce moulée du moule inférieur et la transférer sur un dispositif transporteur de déchargement, et un mécanisme d'entraînement pour le tambour, le membre de transmission de la pression et le dispositif de démoulage, caractérisé par la combinaison des caractéristiques suivantes:
    a) un moteur hydraulique (23) qui, par l'intermédiaire de transmissions mécaniques ramifiées (23a, 24a, 23b, 24b), met en rotation le tambour (15) et imprime au dispositif de démoulage (22) un mouvement de va-et-vient en direction du centre du tambour, ainsi qu'un mouvement pivotant,
    b) un ensemble cylindre-piston hydraulique (20, 21) qui est indépendant du moteur hydraulique (23) et qui imprime directement un mouvement de va-et-vient en direction verticale au coulisseau (18a),
    c) une unité de commande électronique (25) pour la commande du moteur hydraulique, des transmission: mécaniques et de l'ensemble cylindre-piston en concordance avec la cadence de travail.
  2. Presse revolver selon la revendication 1, caractérisée en ce que les transmissions (23a, 24a, 23b, 24b) placées en aval du moteur hydraulique (23) comprennent des arbres à vis sans fin, des arbres cardan et des commandes à cames.
  3. Presse revolver selon la revendication 1 ou 2, caractérisée en ce qu'il est monte, sur l'arbre rotatif (15a) du tambour (15), un disque de frein (16) sur lequel agissent des mâchoires de frein (17) actionnables hydrauliquement.
  4. Presse revolver selon l'une quelconque des revendications 1 à 3, caractérisée en ce que l'ensemble cylindre-piston hydraulique se compose d'un cylindre de presse (20), de deux cylindres préliminaires (21) et de valves proportionnelles.
  5. Presse revolver selon l'une quelconque des revendications 1 à 4, caractérisée en ce que le coulisseau(18a) est guidé dans un guide linéaire octuple (19).
  6. Presse revolver selon l'une quelconque des revendications 1 à 5, caractérisée en ce qu'un moniteur à écran (25a) et une mémoire sont connectés à l'unité de commande (25).
  7. Presse revolver selon l'une quelconque des revendications 1 à 6 comportant un dispositif de chargement automatique, caractérisée en ce que le dispositif de chargement est entraîné par le moteur hydraulique (23) par l'intermédiaire d'une transmission mécanique.
  8. Procédé d'exploitation d'une presse revolver selon l'une quelconque des revendications 1 à 7 pour la fabrication de modèles de tuiles différents, caractérisé en ce que'des cycles d'essai pour les différents modèles de tuiles sont d'abord effectués pour déterminer des données optimales concernant la hauteur de course et la vitesse de course du coulisseau (18a), ainsi que la vitesse de rotation et les temps d'immobilisation du tambour (15), ces données optimales sont mémorisées dans la mémoire de l'unité de commande (25) et enfin les données mémorisées sont lues dans la mémoire par l'unité de commande (25), en fonction des besoins et au moyen d'un code de modèle de tuile, pour être utilisées comme signaux de commande.
  9. Procédé d'exploitation d'une presse revolver selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le moteur hydraulique (23) en marche permanente fonctionne sous une pression hydraulique allant jusqu'à 100 bar environ et l'ensemble cylindre-piston hydraulique (20, 21) fonctionne sous une pression allant jusqu'à 300 bar environ.
  10. Procédé selon la revendication 8 ou 9, caractérisé en ce qu'on fait travailler la presse à une cadence de 25 pièces moulées et plus à la minute.
EP89124129A 1989-12-29 1989-12-29 Presse revolver pour le pressage de masses céramiques et procédé pour le fonctionnement de la presse revolver Expired - Lifetime EP0434863B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP89124129A EP0434863B1 (fr) 1989-12-29 1989-12-29 Presse revolver pour le pressage de masses céramiques et procédé pour le fonctionnement de la presse revolver
DE8989124129T DE58903547D1 (de) 1989-12-29 1989-12-29 Revolverpresse zum verpressen keramischer massen und verfahren zum betreiben der revolverpresse.
AT89124129T ATE85553T1 (de) 1989-12-29 1989-12-29 Revolverpresse zum verpressen keramischer massen und verfahren zum betreiben der revolverpresse.
ES198989124129T ES2039828T3 (es) 1989-12-29 1989-12-29 Prensa revolver para la compresion de masas ceramicas y procedimiento para el accionamiento de la prensa revolver.
GR930400255T GR3007037T3 (fr) 1989-12-29 1993-02-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP89124129A EP0434863B1 (fr) 1989-12-29 1989-12-29 Presse revolver pour le pressage de masses céramiques et procédé pour le fonctionnement de la presse revolver

Publications (2)

Publication Number Publication Date
EP0434863A1 EP0434863A1 (fr) 1991-07-03
EP0434863B1 true EP0434863B1 (fr) 1993-02-10

Family

ID=8202287

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89124129A Expired - Lifetime EP0434863B1 (fr) 1989-12-29 1989-12-29 Presse revolver pour le pressage de masses céramiques et procédé pour le fonctionnement de la presse revolver

Country Status (5)

Country Link
EP (1) EP0434863B1 (fr)
AT (1) ATE85553T1 (fr)
DE (1) DE58903547D1 (fr)
ES (1) ES2039828T3 (fr)
GR (1) GR3007037T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4401506C1 (de) * 1994-01-20 1995-05-11 Haendle Gmbh & Co Kg Lagerung einer Trommel in einer Presse für keramische Massen, insbesondere für die Herstellung von Dachziegeln
DE4401498A1 (de) * 1994-01-20 1995-08-03 Haendle Gmbh & Co Kg Presse zum Verpressen keramischer Massen, insbesondere zum Herstellen von Dachziegeln
DE4401507A1 (de) * 1994-01-20 1995-08-03 Haendle Gmbh & Co Kg Führung eines Druckbalkens im Maschinengestell einer Presse, insbesondere Dachziegelpresse

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9111504U1 (de) * 1991-09-16 1991-11-21 Rieter-Werke Händle KG, 7750 Konstanz Revolverpresse zum Verpressen keramischer Massen
EP3486055A1 (fr) * 2017-11-16 2019-05-22 HÄNDLE GmbH Maschinen und Anlagenbau Presse à tuiles

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH378757A (it) * 1961-01-09 1964-06-15 Fonderie Officine Meccaniche B Procedimento e apparecchiatura per lo stampaggio delle tegole in argilla a ciclo continuo
DE3540320A1 (de) * 1985-11-13 1987-05-14 Netzsch Maschinenfabrik Presse zum herstellen keramischer formlinge
IT1203434B (it) * 1987-04-02 1989-02-15 Mazzoni Spa G Apparecchiatura di stampaggio per formare pezzi di sapone o altre sostanze di consistenza pastosa

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4401506C1 (de) * 1994-01-20 1995-05-11 Haendle Gmbh & Co Kg Lagerung einer Trommel in einer Presse für keramische Massen, insbesondere für die Herstellung von Dachziegeln
DE4401498A1 (de) * 1994-01-20 1995-08-03 Haendle Gmbh & Co Kg Presse zum Verpressen keramischer Massen, insbesondere zum Herstellen von Dachziegeln
DE4401507A1 (de) * 1994-01-20 1995-08-03 Haendle Gmbh & Co Kg Führung eines Druckbalkens im Maschinengestell einer Presse, insbesondere Dachziegelpresse

Also Published As

Publication number Publication date
ES2039828T3 (es) 1993-10-01
EP0434863A1 (fr) 1991-07-03
DE58903547D1 (de) 1993-03-25
ATE85553T1 (de) 1993-02-15
GR3007037T3 (fr) 1993-07-30

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