EP0556363A1 - Vertical press and process for operating the same. - Google Patents

Vertical press and process for operating the same.

Info

Publication number
EP0556363A1
EP0556363A1 EP92918301A EP92918301A EP0556363A1 EP 0556363 A1 EP0556363 A1 EP 0556363A1 EP 92918301 A EP92918301 A EP 92918301A EP 92918301 A EP92918301 A EP 92918301A EP 0556363 A1 EP0556363 A1 EP 0556363A1
Authority
EP
European Patent Office
Prior art keywords
lifting means
mold carrier
vertical
carrier element
mold
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP92918301A
Other languages
German (de)
French (fr)
Other versions
EP0556363B1 (en
Inventor
Hans Ulrich Hauser
Joerg Lindemans
Martin Mick
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.)
Laeis Bucher GmbH
Original Assignee
Laeis Bucher GmbH
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 Laeis Bucher GmbH filed Critical Laeis Bucher GmbH
Publication of EP0556363A1 publication Critical patent/EP0556363A1/en
Application granted granted Critical
Publication of EP0556363B1 publication Critical patent/EP0556363B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
    • B28B17/009—Changing the forming elements, e.g. exchanging moulds, dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/028—Loading or unloading of dies, platens or press rams

Definitions

  • the invention relates to a vertical press with at least three mold carrier elements, of which at least two are vertically displaceable and one is arranged in a fixed manner.
  • a stone press is known from DE-Al-28 41 684 (Bucher-Guyer AG), in which the press stamps have exchangeable stamp plates.
  • the production of molded parts in the pressing process on such presses of vertical design requires the installation and removal of corresponding interchangeable molds on at least three mold carrier elements. At least one stamp is attached to an upper or lower stamp carrier, while a press matrix is installed in a mold carrier plate. Depending on the application, other similar systems require the installation of additional fixed or movable stamps.
  • the three or more tool elements mentioned are then moved against one another for pressing the filled raw materials. At least two tool elements move in relation to the press mold.
  • the upper punch presses from top to bottom, and the frame of the press mold can also be moved in the pressing direction.
  • the lower punch on the other hand, is firmly attached to the lower crossbeam of the press frame and remains stationary.
  • a change of the mentioned forms requires the exchange of all form elements. These remain installed in their frames or are connected to each other before expansion by connecting elements for joint expansion.
  • the molds for presses for large parts are correspondingly heavy, so that mechanical aids for moving in and out are required when changing the mold.
  • the mold changes in particular those of heavier weights of one or more tons, are carried out using the mechanical aids mentioned, e.g. with forklift trucks or hoists by moving them to a ready-made mold changing trolley.
  • Such methods involve a disadvantageous effort due to the relatively expensive hoists.
  • the invention has for its object to avoid the disadvantages mentioned and at the same time other parts of presses, such as mechanical mixers installed in the area of the filling box, for the purpose of cleaning, maintenance or repairs in a simple manner to be replaced and made accessible.
  • this is achieved in a vertical press of the type mentioned at the outset by lifting means for exchangeable parts of the press, which are attached to the uppermost mold carrier element and are at least partially displaceable in the horizontal and / or vertical direction.
  • An essential feature of the invention is that the uppermost mold carrier element to which the lifting means are attached is vertically displaceable, the vertical displacement of the lifting means being effected by this displacement.
  • the lifting means viewed from a front side of the press, can be displaced horizontally forwards and / or backwards to outside the area of the press.
  • the lifting means are expediently attached to the uppermost mold carrier element outside the area which bears the mold.
  • the lifting means preferably comprise two running rails which are attached to two opposite sides of the uppermost mold carrier element, furthermore two running elements mounted at a fixed distance on each running rail, and on each running element an elongated lifting element which can be pivoted parallel to the running rail.
  • a programmed control for the movable mold carrier elements and lifting means is provided, which the Controls vertical movements step-by-step and shape-specific positions assigned to different shapes.
  • a method for an advantageous operation of the vertical press in which a displaceable unit for receiving the mold carrier element for the mold is vertically displaceable between the top and a bottom mold carrier element and the mold carrier element has devices for coupling interchangeable parts, is characterized in that the interchangeable parts Parts are moved into a suitable position for coupling to the lifting means with the aid of the vertically displaceable unit and by distance-retaining coupling elements, coupled to one another and coupled to this lifting means as a package, the lifting means themselves not being displaced vertically.
  • the advantage achieved by the invention is that the handling of the press is considerably simplified and existing press controls can be used without problems for controlling the lifting means and for changing parts.
  • FIG. 1 shows a perspective view of a press device according to the invention, for example.
  • Figure 2 is a schematic view of a press device according to the invention, which has a filling box.
  • the press device illustrated essentially comprises a hydraulic one actuated four-column press 1.
  • a mold carrier element 4 which is also guided on the columns 2, is mounted.
  • the mold carrier element 4 has a hydraulic drive 4 'arranged within the yoke 3 for lowering and a further hydraulic drive 4''for lifting.
  • a unit 5 located at the lower end of the columns 2 and also displaceable along the columns 2, which unit can accommodate a further mold carrier element 5 ′ which can be displaced together with the unit 5.
  • the mold carrier element 5 ' is shown in a position outside the unit 5 and is designed as a hollow shape, in which two upper punches 6, 6' and two lower punches 7, 7 'engage.
  • the upper punches 6, 6 ' are fastened to the mold carrier element 4 and the lower punches are fastened to a mold carrier element 8 and, together with the mold carrier element 5', enclose the product to be pressed.
  • the sliding assembly 5 is raised and 'is lowered by two "piston rods 9, of which only one is visible, the mold support member 8, however, is not displaceable.
  • the hollow shape of the mold carrier element 5 ' is filled with press material by a filler slide, not shown, which pushes the press material over the hollow form of the mold carrier element 5' from outside the columns 2 via a support (also not shown).
  • the pressing material can, for example, be ceramic sand that is to be processed into refractory stones.
  • a guide rail 10, 10 'in the form of a hollow profile is attached to the uppermost mold carrier element 4 on two opposite sides.
  • the distance of the running elements in each running rail 10 or 10 ' is kept constant by spacing elements, not shown, and the lifting elements ⁇ I1 are pivotally attached to the running elements with hinges in the direction parallel to the running rails 10 or 10'.
  • the running elements have drive elements, not shown, for displacement in the running rails.
  • a package is suspended from the lifting elements 11, which consists of the two upper stamps 6, 6 ', the two lower stamps 7, 7' and the mold carrier element 5 ', which are coupled to one another by distance-maintaining coupling elements 13.
  • the components of this package are specific to the shape of the product to be pressed and, as shown, are moved out of the four-column press 1 for changing this shape by the lifting and transport means described above and placed on a shape changing carriage 12.
  • the hydraulic drive 4 'and an associated drive control of the uppermost mold carrier element 4 are expediently made usable for the vertical movement of the package mentioned, and also of its individual parts. In particular, this vertical movement also serves to couple the mold carrier elements 6, 6 ', 7, 7', 5 'via the distance-retaining coupling elements 13 even before the package is moved horizontally.
  • FIG. 2 shows a second embodiment of a hydraulic four-column stone press according to the Invention shown, wherein reference numerals, which also appear in Figure 1, designate corresponding components.
  • a yoke 3 is arranged, which is secured by column nuts 14 before moving out of the columns 2 during the pressing process.
  • a piston 6 projecting downward is fixed in a stationary manner.
  • a pressing plate 18 which can be moved along the columns and in the middle of which a piston 7 projects upwards.
  • a unit 5 which can also be moved along the columns 2 and on which a molding frame 24 is fastened.
  • the molding frame 24 has a hollow shape 26. The bottom of the hollow mold 26 is formed by the piston 7.
  • a support 28 which is arranged on the displaceable unit 5 and carries a hydraulic device 30 for displacing a material container 32 which is open at the top and bottom.
  • the material container 32 is guided by guide rods 34.
  • a filling funnel 36 is provided on the support 28 for filling the material container 32.
  • the mold frame 24 can be aligned against the support 28 in such a way that they together form a table on which the material container 32 can be displaced from the filling funnel 36 to the hollow mold 26.
  • the one according to FIG. 2 is equipped with two running rails, of which the front 10 ′ can be seen in FIG. 2.
  • Two elongated lifting elements 11, which can be pivoted parallel to the running rail 10 ', are mounted horizontally displaceably on each running rail 10'.
  • the material container 32 which serves as a filling box as described above, has in a manner known per se -8- a filling box mixer, not shown, which mixes the raw material coming from the filling funnel 36.
  • Filling boxes 32 and filling box mixers are provided as replaceable parts of the press 1 with devices not shown for coupling to the lifting elements 11.
  • the support 28 is lowered vertically with the aid of the displaceable unit 5 and the filling box 32, filling box mixer or parts or assemblies remaining on the lifting elements 11 are transported forward horizontally to outside the area of the press 1 for cleaning and / or Revision.
  • the lifting elements 11 for the interchangeable parts 5 ', 6, 6', 7, 7 ' can be equipped with centrally controllable coupling elements, with an associated control simultaneously taking over the central control of the horizontal and vertical displacement of the lifting means.
  • Such coupling elements can also be designed as quick couplings.
  • Such a control is then advantageously designed to be programmable such that the displacements required for changing the mold carrier elements for different shapes of the pressed products to suitable intermediate positions and coupling and decoupling processes to be carried out for these are programmed and can be carried out automatically.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Press Drives And Press Lines (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

Afin de simplifier le transport de pièces à changer (5', 6, 6', 7, 7') d'une presse verticale (1), des dispositifs (10, 10', 11) servant à lever et à tranpsorter ces pièces sont incorporés à ladite presse verticale. De façon appropriée, des dispositifs de levage et de transport (10, 10') sont montés sur un porte-moule (4) mobile, situé dans la partie supérieure de la presse (1), de façon que le dispositif d'entraînement et de commande dudit porte-moules (4) qui sont utilisés dans le processus de pressage peuvent également être utilisés pour déplacer verticalement des dispositifs de levage et de transport (10, 10'). Au moyen d'une commande programmée, les déplacements nécessaires vers des positions intermédiaires spécifiques au moule à changer, ainsi que les processus d'accouplement et de désaccouplement à réaliser dans ces positions peuvent être programmés et automatiquement exécutés pour une série de moules.In order to simplify the transport of parts to be changed (5', 6, 6', 7, 7') of a vertical press (1), devices (10, 10', 11) for lifting and transporting these parts are incorporated into said vertical press. Conveniently, lifting and transport devices (10, 10') are mounted on a movable mold carrier (4), located in the upper part of the press (1), so that the driving device and control of said mold carriers (4) which are used in the pressing process can also be used to vertically move lifting and transport devices (10, 10'). By means of a programmed command, the necessary movements to intermediate positions specific to the mold to be changed, as well as the coupling and uncoupling processes to be carried out in these positions can be programmed and automatically executed for a series of moulds.

Description

Verti alpresse und Verfahren zu deren BetriebVertical press and process for operating it
Die Erfindung betrifft eine Vertikal- Presse mit mindestens drei Formträgerelementen, von denen mindestens zwei vertikal verschieblich und eines fest angeordnet sind.The invention relates to a vertical press with at least three mold carrier elements, of which at least two are vertically displaceable and one is arranged in a fixed manner.
Durch die DE-Al-28 41 684 (Bucher-Guyer AG) ist eine Steinpresse bekannt, bei der die Pressstempel auswechselbare Stempelplatten aufweisen. Die Herstellung von Formteilen im Pressverfahren auf derartigen Pressen vertikaler Bauart bedingt den Ein- und Ausbau entsprechender auswechselbarer Formen auf mindestens drei Formträgerelementen. Je mindestens ein Stempel wird dabei an je einem oberen bzw. unteren Stempelträger befestigt, eine Pressmatrix wird hingegen in eine Formträgerplatte eingebaut. Weitere ähnliche Systeme bedingen je nach Verwendung den Einbau weiterer fester oder beweglicher Stempel. Die genannten drei oder mehr Werkzeugelemente werden dann zur Verpressung der eingefüllten Rohmaterialien gegeneinander bewegt. Dabei bewegen sich gegenüber der Pressform mindestens zwei Werkzeugelemente. Der Oberstempel presst von oben nach unten, und der Rahmen der Preεsform ist ebenfalls in Pressrichtung beweglich. Der Unterstempel hingegen ist fest an eiϊier unteren Traverse des Pressengestelles angebracht und bleibt stationär.A stone press is known from DE-Al-28 41 684 (Bucher-Guyer AG), in which the press stamps have exchangeable stamp plates. The production of molded parts in the pressing process on such presses of vertical design requires the installation and removal of corresponding interchangeable molds on at least three mold carrier elements. At least one stamp is attached to an upper or lower stamp carrier, while a press matrix is installed in a mold carrier plate. Depending on the application, other similar systems require the installation of additional fixed or movable stamps. The three or more tool elements mentioned are then moved against one another for pressing the filled raw materials. At least two tool elements move in relation to the press mold. The upper punch presses from top to bottom, and the frame of the press mold can also be moved in the pressing direction. The lower punch, on the other hand, is firmly attached to the lower crossbeam of the press frame and remains stationary.
Andere Systeme haben einen feststehenden, mit dem Presssystem starr verbundenen Presstisch, jedoch zwei bewegte Stempel. Bei einem weiteren bekannten System schliesslich sind alle drei Werkzeugelemente beweglich.Other systems have a fixed press table rigidly connected to the press system, but two moving stamps. Finally, in another known system, all three tool elements are movable.
Ein Wechsel der genannten Formen bedingt jeweils den Austausch aller Form- Elemente. Diese bleiben dabei in ihren Rahmen eingebaut oder werden vor dem Ausbau durch Verbindungselemente zum gemeinsamen Ausbau miteinander verbunden. Bei Pressen für grosse Teile sind die Formen entsprechend schwer, sodass beim Formwechsel mechanische Hilfsmittel zum Ein- und Ausfahren erforderlich sind.A change of the mentioned forms requires the exchange of all form elements. These remain installed in their frames or are connected to each other before expansion by connecting elements for joint expansion. The molds for presses for large parts are correspondingly heavy, so that mechanical aids for moving in and out are required when changing the mold.
Bei bekannten Pressen erfolgen die Formwechsel, insbesondere jene schwerer- ormen von einer oder mehreren Tonnen Gewicht, mit den genannten mechanischen Hilfsmittteln, z.B. mit Hubstaplern oder Hebezeugen durch Verschiebung auf einen bereitstehenden Formwechselwagen. Solche Verfahren bedingen durch die relativ teueren Hebezeuge einen nachteiligen Aufwand.In the case of known presses, the mold changes, in particular those of heavier weights of one or more tons, are carried out using the mechanical aids mentioned, e.g. with forklift trucks or hoists by moving them to a ready-made mold changing trolley. Such methods involve a disadvantageous effort due to the relatively expensive hoists.
Der Erfindung liegt die Aufgabe zugrunde, die genannten Nachteile zu vermeiden und gleichzeitig weitere Teile von Pressen, wie im Bereich des Füllkastens eingebaute mechanische Mischer, zum Zwecke der Reinigung, für den Unterhalt oder für Reparaturen in einfacher Weise auszuwechseln und zugänglich zu machen.The invention has for its object to avoid the disadvantages mentioned and at the same time other parts of presses, such as mechanical mixers installed in the area of the filling box, for the purpose of cleaning, maintenance or repairs in a simple manner to be replaced and made accessible.
Gemäss der Erfindung wird dies bei einer Vertikal- Presse der eingangs genannten Art erreicht durch Hebemittel für auswechselbare Teile der Presse, welche am obersten Formträgerelement angebracht und mindestens teilweise in horizontaler und/oder vertikaler Richtung verschiebbar sind.According to the invention, this is achieved in a vertical press of the type mentioned at the outset by lifting means for exchangeable parts of the press, which are attached to the uppermost mold carrier element and are at least partially displaceable in the horizontal and / or vertical direction.
Ein wesentliches Merkmal der Erfindung besteht darin, dass das oberste Formträgerelement, an dem die Hebemittel angebracht sind, vertikal verεchieblich ist, wobei durch diese Verschiebung die vertikale Verschiebung der Hebemittel erfolgt.An essential feature of the invention is that the uppermost mold carrier element to which the lifting means are attached is vertically displaceable, the vertical displacement of the lifting means being effected by this displacement.
Nach einem weiteren Merkmal der Erfindung sind die Hebemittel von einer Vorderseite der Presse her gesehen nach vorn und/oder hinten horizontal bis ausserhalb des Bereiches der Presse verschiebbar. Zweck ässig sind dabei die Hebemittel am obersten Formträgerelement ausserhalb des Bereiches angebracht, welcher die Form trägt.According to a further feature of the invention, the lifting means, viewed from a front side of the press, can be displaced horizontally forwards and / or backwards to outside the area of the press. The lifting means are expediently attached to the uppermost mold carrier element outside the area which bears the mold.
Vorzugsweise umfassen die Hebemittel zwei Laufschienen, welche an zwei gegenüberliegenden Seiten des obersten Formträgerelementes angebracht sind, ferner auf jeder Laufschiene zwei mit festem Abstand montierte Laufelemente, sowie an jedem Laufelement ein parallel zur Laufschiene schwenkbares, langgestrecktes Hebeelement.The lifting means preferably comprise two running rails which are attached to two opposite sides of the uppermost mold carrier element, furthermore two running elements mounted at a fixed distance on each running rail, and on each running element an elongated lifting element which can be pivoted parallel to the running rail.
Nach einem weiteren Merkmal der Erfindung ist eine programmierte Steuerung für die verschieblichen Formträgerelemente und Hebemittel vorgesehen, welche die Vertikalbewegungen schrittweise und formspezifisch auf verschiedenen Formen zugeordnete Positionen steuert.According to a further feature of the invention, a programmed control for the movable mold carrier elements and lifting means is provided, which the Controls vertical movements step-by-step and shape-specific positions assigned to different shapes.
Ein Verfahren für einen vorteilhaften Betrieb der Vertikal- Presse, bei welcher eine verschiebbare Einheit zur Aufnahme des Formträgerelementes für die Pressform zwischen dem obersten und einem untersten Formträgerelement vertikal verschieblich ist und das Formträgerelement Vorrichtungen zur Ankopplung auswechselbarer Teile aufweist, ist dadurch gekennzeichnet, dass die auswechselbaren Teile mit Hilfe der vertikal verschieblichen Einheit und von distanzhaltenden Kopplungselementen in eine geeignete Lage zur Kopplung an die Hebemittel gefahren, aneinandergekoppelt und als Paket an diese Hebemittel angekoppelt werden, wobei die Hebemittel selbst nicht vertikal verschoben werden.A method for an advantageous operation of the vertical press, in which a displaceable unit for receiving the mold carrier element for the mold is vertically displaceable between the top and a bottom mold carrier element and the mold carrier element has devices for coupling interchangeable parts, is characterized in that the interchangeable parts Parts are moved into a suitable position for coupling to the lifting means with the aid of the vertically displaceable unit and by distance-retaining coupling elements, coupled to one another and coupled to this lifting means as a package, the lifting means themselves not being displaced vertically.
Der mit der Erfindung erzielte Vorteil besteht darin, dass die Handhabung der Presse wesentlich vereinfacht wird und vorhandene Pressenεteuerungen problemlos zur Steuerung der Hebemittel und zum Teilewechsel nutzbar gemacht werden können.The advantage achieved by the invention is that the handling of the press is considerably simplified and existing press controls can be used without problems for controlling the lifting means and for changing parts.
Die Erfindung ist in der folgenden Beschreibung und den Figuren der Zeichnung näher erläutert. Es zeigenThe invention is explained in more detail in the following description and the figures of the drawing. Show it
Figur 1 eine perspektivische Ansicht einer beispielsweisen erfindungsgemässen Presseneinrichtung.1 shows a perspective view of a press device according to the invention, for example.
Figur 2 eine schematische Ansicht einer erfindungsgemässen Presseneinrichtung, welche einen Füllkasten aufweist.Figure 2 is a schematic view of a press device according to the invention, which has a filling box.
Wie die Figur 1 zeigt, u fasst die veranschaulichte Presseneinrichtung im wesentlichen eine hydraulisch betätigte Viersäulenpresse 1. Am oberen Ende der vier Säulen 2 ist ein Joch 3 angeordnet, in dem ein auch auf den Säulen 2 geführtes Formträgerelement 4 gelagert ist. Das Formträgerelement 4 besitzt einen innerhalb des Joches 3 angeordneten hydraulischen Antrieb 4' zum absenken und einen weiteren hydraulischen Antrieb 4' ' zum anheben. Dem Formträgerelement 4 ist eine am unteren Ende der Säulen 2 befindliche und ebenfalls entlang den Säulen 2 verschiebbare Einheit 5 zugeordnet, welche ein weiteres, mit der Einheit 5 zusammen verschiebliches Formträgerelement 5' aufnehmen kann. Das Formträgerelement 5' ist in einer Lage ausserhalb der Einheit 5 dargestellt und als Hohlform ausgebildet, in welche zwei Oberstempel 6, 6' und zwei Unterstempel 7, 7' eingreifen.As FIG. 1 shows, the press device illustrated essentially comprises a hydraulic one actuated four-column press 1. At the upper end of the four columns 2 there is a yoke 3 in which a mold carrier element 4, which is also guided on the columns 2, is mounted. The mold carrier element 4 has a hydraulic drive 4 'arranged within the yoke 3 for lowering and a further hydraulic drive 4''for lifting. Associated with the mold carrier element 4 is a unit 5 located at the lower end of the columns 2 and also displaceable along the columns 2, which unit can accommodate a further mold carrier element 5 ′ which can be displaced together with the unit 5. The mold carrier element 5 'is shown in a position outside the unit 5 and is designed as a hollow shape, in which two upper punches 6, 6' and two lower punches 7, 7 'engage.
Beim Pressvorgang sind, wie in der Figur 1 nicht gezeigt, die Oberstempel 6, 6' am Formträgerelement 4 und die Unterstempel an einem Formträgerelement 8 befestigt und schliessen gemeinsam mit dem Formträgerelement 5' das zu pressende Produkt ein. Die verschiebbare Einheit 5 wird durch zwei „Kolbenstangen 9, von denen nur eine sichtbar ist, angehoben und' abgesenkt, das Formträgerelement 8 ist hingegen nicht verschiebbar. Die Hohlform des Formträgerelementes 5' wird mit Pressmaterial gefüllt durch einen nicht dargestellten Einfüllschieber, welcher von ausserhalb der Säulen 2 her über einen ebenfalls nicht gezeigten Support das Pressmaterial über die Hohlform des Formträgerelementes 5' schiebt. Das Pressmaterial kann beispielsweise keramischer Sand sein, der zu feuerfesten Steinen verarbeitet werden soll.During the pressing process, as not shown in FIG. 1, the upper punches 6, 6 'are fastened to the mold carrier element 4 and the lower punches are fastened to a mold carrier element 8 and, together with the mold carrier element 5', enclose the product to be pressed. The sliding assembly 5 is raised and 'is lowered by two "piston rods 9, of which only one is visible, the mold support member 8, however, is not displaceable. The hollow shape of the mold carrier element 5 'is filled with press material by a filler slide, not shown, which pushes the press material over the hollow form of the mold carrier element 5' from outside the columns 2 via a support (also not shown). The pressing material can, for example, be ceramic sand that is to be processed into refractory stones.
Die Arbeitsweise der Presse entspricht im wesentlichen derjenige herkömmlicher Pressen, wie sie beispielsweise in der DE-OS 27 41 800 beschrieben ist. Am obersten Formträgerelement 4 sind, wie die Figur 1 zeigt, an zwei gegenüberliegenden Seiten je eine Laufschiene 10, 10' in Form eines Hohlprofils angebracht. Diese Laufschienen 10, 10' ragen nach vorn aus dem Bereich' der Viersäulenpresse 1 heraus und tragen jede zwei Laufelemente, an denen je ein langgestrecktes Hebeelement 11 befestigt ist. Der Abstand der Laufelemente in jeder Laufschiene 10 oder 10' ist durch nicht gezeigte Distanzelemente konstant gehalten, und die Hebeelemente~I1 sind an den Laufelementen mit Scharnieren in Richtung parallel zu den Laufschienen 10 oder 10' schwenkbar befestigt. Die Laufelemente besitzen nicht dargestellte Antriebselemente zur Verschiebung in den Laufschienen.The operation of the press corresponds essentially to that of conventional presses, as described for example in DE-OS 27 41 800. As shown in FIG. 1, a guide rail 10, 10 'in the form of a hollow profile is attached to the uppermost mold carrier element 4 on two opposite sides. These rails 10, 10 'protrude forward from the area ' of the four-column press 1 and each carry two running elements, to each of which an elongated lifting element 11 is attached. The distance of the running elements in each running rail 10 or 10 'is kept constant by spacing elements, not shown, and the lifting elements ~ I1 are pivotally attached to the running elements with hinges in the direction parallel to the running rails 10 or 10'. The running elements have drive elements, not shown, for displacement in the running rails.
Wie ersichtlich, ist an den Hebeelementen 11 ein Paket aufgehängt, welches aus den beiden Oberstempelh 6, 6', den beiden Unterstempeln 7 , 7 ' und dem Formträgerelement 5' besteht, welche durch distanzhaltende Kopplungselemente 13 aneinander gekoppelt sind. Die Bauelemente dieses Paketes sind für die Form des zu pressenden Produktes spezifisch und werden, wie dargestellt, für einen Wechsel dieser Form durch die oben beschriebenen Hebe- und Transportmittel aus der Viersäulenpresse 1 herausgefahren und auf einen Formwechselwagen 12 abgesetzt. Dabei werden in zweckmässiger Weise der hydraulische Antrieb 4 ' und eine zugehörige AntriebsSteuerung des obersten Formträgerelementes 4 für die Vertikalbewegung des genannten Paketes, sowie auch seiner Einzelteile nutzbar gemacht. Insbesondere dient diese Vertikalbewegung auch bereits vor dem horizontalen Verschieben des Paketes zum Koppeln der Formträgerelemente 6, 6', 7, 7', 5' über die distanzhaltenden Kopplungselemente 13.As can be seen, a package is suspended from the lifting elements 11, which consists of the two upper stamps 6, 6 ', the two lower stamps 7, 7' and the mold carrier element 5 ', which are coupled to one another by distance-maintaining coupling elements 13. The components of this package are specific to the shape of the product to be pressed and, as shown, are moved out of the four-column press 1 for changing this shape by the lifting and transport means described above and placed on a shape changing carriage 12. The hydraulic drive 4 'and an associated drive control of the uppermost mold carrier element 4 are expediently made usable for the vertical movement of the package mentioned, and also of its individual parts. In particular, this vertical movement also serves to couple the mold carrier elements 6, 6 ', 7, 7', 5 'via the distance-retaining coupling elements 13 even before the package is moved horizontally.
In Figur 2 ist eine zweite Ausführungsform einer hydraulischen Viersäulen- Steinpresse gemäss der Erfindung dargestellt, wobei Bezugszeichen, welche auch in Figur 1 vorkommen, entsprechende Bauelemente bezeichnen. Am oberen Ende der vier Säulen 2 ist ein Joch 3 angeordnet, das durch Säulenmuttern 14 vor einem Ausfahren aus den Säulen 2 während des Press organges gesichert ist. In der Mitte des Jochs 3 ist ein nach unten vorstehender Kolben 6 stationär befestigt. Am unteren Ende der Säulen 2 ist eine entlang den Säulen verschiebbare Pressplatte 18 angeordnet, in deren Mitte ein Kolben 7 nach oben ragt. Über der Pressplatte 18 ist eine ebenfalls entlang den Säulen 2 verschiebbare Einheit 5 angeordnet, auf der ein Formrahmen 24 befestigt ist. Der Formrahmen 24 weist eine Hohlform 26 auf. Der Boden der Hohlform 26 wird durch den Kolben 7 gebildet.FIG. 2 shows a second embodiment of a hydraulic four-column stone press according to the Invention shown, wherein reference numerals, which also appear in Figure 1, designate corresponding components. At the upper end of the four columns 2, a yoke 3 is arranged, which is secured by column nuts 14 before moving out of the columns 2 during the pressing process. In the middle of the yoke 3, a piston 6 projecting downward is fixed in a stationary manner. At the lower end of the columns 2 there is a pressing plate 18 which can be moved along the columns and in the middle of which a piston 7 projects upwards. Arranged above the press plate 18 is a unit 5 which can also be moved along the columns 2 and on which a molding frame 24 is fastened. The molding frame 24 has a hollow shape 26. The bottom of the hollow mold 26 is formed by the piston 7.
Neben dem Formrahmen 24 ausserhalb der Säulen 2 befindet sich ein Support 28, der an der verschiebbaren Einheit 5 angeordnet ist und eine hydraulische Einrichtung 30 zur Verschiebung eines oben und unten offenen Materialbehälters 32 trägt. Der Materialbehälter 32 wird von Führungsstangen 34 geführt. Ferner ist ein Einfülltrichter 36 auf dem Support 28 zum Füllen des Materialbehälters 32 vorgesehen. Zum Füllen der Hohlform 26 kann der Formrahmen 24 gegen den Support 28 derart ausgerichtet werden, dass sie gemeinsam einen Tisch bilden, auf dem der Materialbehälter 32 vom Einfülltrichter 36 zur Hohlform 26 verschiebbar ist.In addition to the molding frame 24 outside the columns 2, there is a support 28 which is arranged on the displaceable unit 5 and carries a hydraulic device 30 for displacing a material container 32 which is open at the top and bottom. The material container 32 is guided by guide rods 34. Furthermore, a filling funnel 36 is provided on the support 28 for filling the material container 32. To fill the hollow mold 26, the mold frame 24 can be aligned against the support 28 in such a way that they together form a table on which the material container 32 can be displaced from the filling funnel 36 to the hollow mold 26.
Wie das Ausführungsbeispiel gemäss Figur 1 ist auch jenes gemäss Figur 2 mit zwei Laufschienen ausgerüstet, von denen die vordere 10' in Figur 2 erkennbar ist. Auf jeder Laufschiene 10' sind auf Laufelementen zwei langgestreckte, parallel zur Laufschiene 10' schwenkbare Hebeelemente 11 horizontal verschiebbar montiert. Der Materialbehälter 32, welcher wie oben beschrieben als Füllkasten dient, besitzt in an sich bekannter Weise -8- einen nicht mit dargestellten Füllkastenmischer, welcher das vom Einfülltrichter 36 her kommende Rohmaterial mischt. Füllkästen 32 und Füllkastenmischer sind als auswechselbare Teile-der Presse 1 mit nicht mit dargestellten Einrichtungen zur Kopplung an die Hebeelemente 11 versehen. Nach Durchführung einer derartigen Kopplung senkt man den Support 28 mit Hilfe der verschiebbaren Einheit 5 vertikal ab und transportiert die an den Hebeelementen 11 verbleibenden Füllkasten 32, Füllkastenmischer oder deren Teile oder Baugruppen nach vorn horizontal bis ausserhalb des Bereiches der Presse 1 zur Reinigung und/oder Revision.Like the exemplary embodiment according to FIG. 1, the one according to FIG. 2 is equipped with two running rails, of which the front 10 ′ can be seen in FIG. 2. Two elongated lifting elements 11, which can be pivoted parallel to the running rail 10 ', are mounted horizontally displaceably on each running rail 10'. The material container 32, which serves as a filling box as described above, has in a manner known per se -8- a filling box mixer, not shown, which mixes the raw material coming from the filling funnel 36. Filling boxes 32 and filling box mixers are provided as replaceable parts of the press 1 with devices not shown for coupling to the lifting elements 11. After performing such a coupling, the support 28 is lowered vertically with the aid of the displaceable unit 5 and the filling box 32, filling box mixer or parts or assemblies remaining on the lifting elements 11 are transported forward horizontally to outside the area of the press 1 for cleaning and / or Revision.
Die Erfindung umfasst weitere, in der Zeichnung nicht im Einzelnen dargestellte aber zweckmässige Merkmale. So können die Hebeelemente 11 für die auswechselbaren Teile 5', 6, 6', 7, 7' mit zentral steuerbaren Kopplungselementen ausgerüstet sein, wobei eine zugehörige Steuerung gleichzeitig die zentrale Steuerung der horizontalen und vertikalen Verschiebung der Hebemittel übernimmt. Solche Kopplungselemente können auch als Schnellkupplungen ausgeführt sein. Eine derartige Steuerung ist dann mit Vorteil programmierbar ausgebildet derart, dass die für den Wechsel der Formträgerelemente für unterschiedliche Formen der Press- Produkte erforderlichen Verschiebungen auf dazu passende Zwischenpositionen und auf diesen auszuführende Kopplungs- und Entkopplungsvorgänge für eine Reihe von Formen programmiert und automatisch ausführbar sind. The invention encompasses further useful features that are not shown in detail in the drawing but are useful. Thus, the lifting elements 11 for the interchangeable parts 5 ', 6, 6', 7, 7 'can be equipped with centrally controllable coupling elements, with an associated control simultaneously taking over the central control of the horizontal and vertical displacement of the lifting means. Such coupling elements can also be designed as quick couplings. Such a control is then advantageously designed to be programmable such that the displacements required for changing the mold carrier elements for different shapes of the pressed products to suitable intermediate positions and coupling and decoupling processes to be carried out for these are programmed and can be carried out automatically.

Claims

P A T E N T A N S P R U E C H E PATENT CLAIMS
1. Vertikal- Presse mit mindestens drei Formträgerelementen, von denen mindestens zwei vertikal verschieblich und eines fest angeordnet sind, gekennzeichnet durch Hebemittel (10, 10', 11) für auswechselbare Teile (5', 6, 6', 7, 7') der Presse (1), welche am obersten Formträgerelement (4) angebracht und mindestens teilweise in horizontaler und/oder vertikaler Richtung verschiebbar sind.1. Vertical press with at least three mold carrier elements, of which at least two are vertically displaceable and one is arranged in a fixed manner, characterized by lifting means (10, 10 ', 11) for interchangeable parts (5', 6, 6 ', 7, 7') the press (1), which is attached to the uppermost mold carrier element (4) and can be displaced at least partially in the horizontal and / or vertical direction.
2. Vertikal- Presse nach Anspruch 1, dadurch gekennzeich¬ net, dass das oberste Formträgerelement (4), an dem die Hebemittel (10, 10', 11) angebracht sind, vertikal verschieblich ist, wobei durch diese Verschiebung die vertikale Verschiebung der Hebemittel erfolgt.2. Vertical press according to claim 1, characterized gekennzeich¬ net that the top mold carrier element (4) on which the lifting means (10, 10 ', 11) are attached, is vertically displaceable, the vertical displacement of the lifting means by this displacement he follows.
3. Vertikal- Presse nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Hebemittel (10, 10', 11) von einer Vorderseite der Presse (1) her gesehen nach vorn und/oder hinten horizontal bis ausserhalb des Bereiches der Presse verschiebbar sind. 3. Vertical press according to one of claims 1 or 2, characterized in that the lifting means (10, 10 ', 11) seen from a front of the press (1) forward and / or rearward horizontally to outside the area of the press are movable.
4. Vertikal- Presse nach einem der Ansprüche 1 bis 3, da¬ durch gekennzeichnet, dass die Hebemittel (10, 10', 11) am obersten Formträgerelement (4) ausserhalb des Bereiches angebracht sind, welcher die Form (6,4. Vertical press according to one of claims 1 to 3, characterized by the fact that the lifting means (10, 10 ', 11) are attached to the uppermost mold carrier element (4) outside the area which the mold (6,
6')trägt.6 ') carries.
5. Vertikal- Presse nach einem der Ansprüche 1 bis 4, da¬ durch gekennzeichnet, dass die Hebemittel (10, 10', 11) Elemente zur Kopplung an die auswechselbaren Teile aufweisen und dass eine Steuerung vorgesehen ist, mit der die Elemente zur Kopplung und die horizontale und vertikale Verschiebung der Hebemittel zentral steuerbar sind.5. Vertical press according to one of claims 1 to 4, da¬ characterized in that the lifting means (10, 10 ', 11) have elements for coupling to the interchangeable parts and that a controller is provided with which the elements for coupling and the horizontal and vertical displacement of the lifting means can be controlled centrally.
6. Vertikal- Presse nach einem der Ansprüche 1 bis 5, da¬ durch gekennzeichnet, dass die Hebemittel (10, 10') am obersten Formträgerelement (4) mindestens teilweise fest angebracht sind.6. Vertical press according to one of claims 1 to 5, da¬ characterized in that the lifting means (10, 10 ') on the uppermost mold support element (4) are at least partially firmly attached.
7. Vertikal- Presse nach einem der Ansprüche 1 bis 6, da¬ durch gekennzeichnet, dass die Hebemittel (11) Schnellkupplungen zur Kopplung an die auswechselbaren Teile (5') aufweisen.7. Vertical press according to one of claims 1 to 6, characterized in that the lifting means (11) have quick couplings for coupling to the interchangeable parts (5 ').
8. Vertikal- Presse nach Anspruch 2, dadurch gekennzeich¬ net, dass die Hebemittel zwei Laufschienen (10r 10') umfassen, welche an zwei gegenüberliegenden Seiten des obersten Formträgerelementes (4) angebracht sind, ferner auf jeder Laufschiene zwei mit festem Abstand montierte Laufelemente, sowie an jedem Laufelement ein parallel zur Laufschiene (10, 10') schwenkbares, langgestrecktes Hebeelement (11).8. Vertical press according to claim 2, characterized gekennzeich¬ net that the lifting means comprise two runners (10 r 10 '), which on two opposite sides the uppermost mold carrier element (4) are attached, furthermore two running elements mounted at a fixed distance on each running rail, and on each running element an elongated lifting element (11) which can be pivoted parallel to the running rail (10, 10 ').
9. Vertikal- Presse nach einem der Ansprüche 1 bis 8, ge¬ kennzeichnet durch eine programmierte Steuerung für die verschieblichen Formträgerelemente (4, 5) und Hebemittel (10, 10', 11), welche die Vertikalbewegungen schrittweise und formspezifisch auf verschiedenen Formen zugeordnete Positionen steuert.9. Vertical press according to one of claims 1 to 8, characterized by a programmed control for the displaceable mold carrier elements (4, 5) and lifting means (10, 10 ', 11), which is assigned to the vertical movements step by step and shape-specifically on different shapes Controls positions.
10.Vertikalpresse nach Anspruch 1, welche einen10.Vertical press according to claim 1, which a
Füllkasten (32) nebst Füllkastenmischer aufweist, dadurch gekennzeichnet, dass Teile oder Baugruppen von Füllkasten (32) oder Füllkastenmischer Einrichtungen zur Kopplung der Hebemittel (11) für die auswechselbaren Teile aufweisen.Filling box (32) and filling box mixer, characterized in that parts or assemblies of filling box (32) or filling box mixer have devices for coupling the lifting means (11) for the replaceable parts.
11.Vertikalpresse nach Anspruch 10, gekennzeichnet durch Hebemittel, welche geeignet sind, die Teile oder Baugruppen von Füllkasten oder Füllkastenmischer unter das Niveau eines Formtisches (24, 28) abzusenken, welcher ein Formträgerelement für die Pressform trägt. 11.Vertical press according to claim 10, characterized by lifting means which are suitable for lowering the parts or assemblies of filling box or filling box mixer below the level of a molding table (24, 28) which carries a mold carrier element for the press mold.
12.Verfahren zum Betrieb der Vertikal- Presse nach12.Procedure for operating the vertical press
Anspruch 1, bei welcher eine verschiebbare EinheitClaim 1, in which a slidable unit
(5) zur Aufnahme des Formträgerelementes (5') für die(5) for receiving the mold carrier element (5 ') for the
Pressform zwischen dem obersten (4) und einem untersten Formträgerelement (8) vertikal verschieblich ist und das Formträgerelement (5')Press mold between the top (4) and a lowermost mold carrier element (8) is vertically displaceable and the mold carrier element (5 ')
Vorrichtungen zur Ankopplung auswechselbarer Teile aufweist, dadurch gekennzeichnet, dass die auswechselbaren Teile (6, 6', 7, 7', 5') mit Hilfe der vertikal verschieblichen Einheit (5) und von distanzhaltenden Kopplungselernenten (13) in eine geeignete Lage zur Kopplung an die Hebemittel (11) gefahren, aneinandergekoppelt und als Paket' an dieseDevices for coupling interchangeable parts, characterized in that the interchangeable parts (6, 6 ', 7, 7', 5 ') with the help of the vertically displaceable unit (5) and distance-retaining coupling elements (13) in a suitable position for coupling down to the lifting means (11), coupled to each other and as a package 'of this
Hebemittel (11) angekoppelt werden, wobei dieLifting means (11) are coupled, the
Hebemittel (11) selbst nicht vertikal verschoben werden.Lifting means (11) themselves cannot be moved vertically.
13.Verfahren zum Betrieb der Vertikal- Presse nach Anspruch 1, bei welcher eine verschiebbare Einheit (5) zur Aufnahme des Formträgerelementes (5') für die Pressform zwischen dem obersten (4) und einem untersten Formträgerelement (8) vertikal verschieblich ist und das Formträgerelement (5' ) Vorrichtungen zur Ankopplung auswechselbarer Teile aufweist, dadurch gekennzeichnet, dass die auswechselbaren Teile (6, 6', 7, 7') mit Hilfe der vertikal verschieblichen Einheit (5) oder der Hebemittel (10, 10', 11) in eine geeignete Lage zur Kopplung an das Formträgerelement (5') gebracht, mittels separater distanzhaltender Kopplungselemente (13) gekoppelt und derart zusammengefasst als Paket in den Pressraum ein- oder aus diesem herausgeführt werden. 13.The method of operating the vertical press according to claim 1, wherein a displaceable unit (5) for receiving the mold carrier element (5 ') for the mold between the top (4) and a bottom mold carrier element (8) is vertically displaceable and that Mold carrier element (5 ') has devices for coupling interchangeable parts, characterized in that the interchangeable parts (6, 6', 7, 7 ') with the aid of the vertically displaceable unit (5) or the lifting means (10, 10', 11) in a suitable position for Coupling brought to the mold carrier element (5 '), coupled by means of separate spacing coupling elements (13) and summarized in this way as a package in or out of the press chamber.
O 93/04831 PCT/CH92/00182O 93/04831 PCT / CH92 / 00182
- 14 -- 14 -
GEÄNDERTE ANSPRÜCHECHANGED REQUIREMENTS
[beim Internationalen Büro am 22. Januar 1993 (22.01.93) eingegangen;[Received at the International Bureau on January 22, 1993 (January 22, 1993);
Ansprüche 1 und 2 geändert; weitere Ansprüche unverändert (1 Seite)]Claims 1 and 2 amended; further claims unchanged (1 page)]
1. Vertikal- Presse mit mindestens drei Formträgerelementen, von denen mindestens zwei vertikal verschieblich und eines fest angeordnet sind, gekennzeichnet durch Hebemittel (10, 10', 11) für auswechselbare Teile (5', 6, 6', 7, 7') der Presse (1), welche am obersten vertikal verschieblichen Formträgerelement (4) angebracht und mindestens teilweise in horizontaler und/oder vertikaler Richtung verschiebbar sind.1. Vertical press with at least three mold carrier elements, of which at least two are vertically displaceable and one is arranged in a fixed manner, characterized by lifting means (10, 10 ', 11) for interchangeable parts (5', 6, 6 ', 7, 7') the press (1), which is attached to the uppermost vertically displaceable mold carrier element (4) and can be displaced at least partially in the horizontal and / or vertical direction.
2. Vertikal- Presse nach Anspruch 1, dadurch gekennzeich¬ net, dass die vertikale Verschiebung der Hebemittel (10, 10', 11) durch das oberste Formträgerelement (4) mittels hydraulischer Antriebe (4', 4'') erfolgt.2. Vertical press according to claim 1, characterized gekennzeich¬ net that the vertical displacement of the lifting means (10, 10 ', 11) by the top mold carrier element (4) by means of hydraulic drives (4', 4 '').
3. Vertikal- Presse nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Hebemittel (10, 10', 11) von einer Vorderseite der Presse (1) her gesehen nach vorn und/oder hinten horizontal bis ausserhalb des Bereiches der Presse verschiebbar sind.3. Vertical press according to one of claims 1 or 2, characterized in that the lifting means (10, 10 ', 11) seen from a front of the press (1) forward and / or rearward horizontally to outside the area of the press are movable.
4. Vertikal- Presse nach einem der Ansprüche 1 bis "3, da¬ durch gekennzeichnet, dass die Hebemittel (10, 10', 11) am obersten Formträgerelement (4) ausserhalb des Bereiches angebracht sind, welcher die Form (6,4. Vertical press according to one of claims 1 to " 3, da¬ characterized in that the lifting means (10, 10 ', 11) are attached to the uppermost mold carrier element (4) outside the area which the mold (6,
6')trägt.6 ') carries.
5. Vertikal- Presse nach einem der Ansprüche 1 bis 4., da¬ durch gekennzeichnet, dass die Hebemittel (10, 10', 11) Elemente zur Kopplung an die auswechselbaren 1/25. Vertical press according to one of claims 1 to 4, da¬ characterized in that the lifting means (10, 10 ', 11) elements for coupling to the interchangeable 1/2
EP92918301A 1991-09-11 1992-09-07 Vertical press and process for using the same Expired - Lifetime EP0556363B1 (en)

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CH2672/91A CH683900A5 (en) 1991-09-11 1991-09-11 Vertical press and method for its operation.
CH2672/91 1991-09-11
PCT/CH1992/000182 WO1993004831A1 (en) 1991-09-11 1992-09-07 Vertical press and process for operating the same

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WO1993004831A1 (en) 1993-03-18
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JP3352686B2 (en) 2002-12-03
DE59205404D1 (en) 1996-03-28
ATE134331T1 (en) 1996-03-15
CA2095818A1 (en) 1993-03-12
JPH06501887A (en) 1994-03-03
CN1070864A (en) 1993-04-14

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