EP0024002A2 - Press automat - Google Patents

Press automat Download PDF

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Publication number
EP0024002A2
EP0024002A2 EP80104441A EP80104441A EP0024002A2 EP 0024002 A2 EP0024002 A2 EP 0024002A2 EP 80104441 A EP80104441 A EP 80104441A EP 80104441 A EP80104441 A EP 80104441A EP 0024002 A2 EP0024002 A2 EP 0024002A2
Authority
EP
European Patent Office
Prior art keywords
filling
press
pressing
rotary table
working positions
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
EP80104441A
Other languages
German (de)
French (fr)
Other versions
EP0024002A3 (en
EP0024002B1 (en
Inventor
Horst Prof. Dr. Schreiner
Bernhard Rothkegel
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to AT80104441T priority Critical patent/ATE7869T1/en
Publication of EP0024002A2 publication Critical patent/EP0024002A2/en
Publication of EP0024002A3 publication Critical patent/EP0024002A3/en
Application granted granted Critical
Publication of EP0024002B1 publication Critical patent/EP0024002B1/en
Expired legal-status Critical Current

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Classifications

    • 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
    • B30B11/08—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 carried by a turntable
    • B30B11/10—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 carried by a turntable intermittently rotated

Definitions

  • the invention relates to an automatic press for the production of compacts from pulverulent materials, in which a rotatable rotary table with a vertical axis of rotation is provided, on which filling devices with filling pots and pressing tools are arranged in a uniform division.
  • Single-layer compacts are usually pressed on automatic presses, with the filling, pressing and ejection process taking place at one position.
  • the press performance of such automatic presses is relatively low.
  • the invention has for its object to improve the known presses in such a way that their press performance is significantly increased.
  • the object is achieved according to the invention in that on the rotary table at least two working positions are provided at a predetermined distance from one another such that at each working position there is a pressing operation for pressing the powder and one ejection operation for ejecting the finished compact and that the filling devices are arranged in such a way that the working positions the filling pot of each filling device covers a wide angular range of the rotary table.
  • the working positions can, for example, be offset from one another by 180 angular degrees or 120 angular degrees.
  • the filling pots of the filling devices are advantageously arranged above the rotary table in such a way that the filling paths are of the same length during each rotary movement of the rotary table. Furthermore, it is expedient to provide wipers inside the filling pots.
  • Fig. 1 the press table 11 with the two working positions 1 and 2 is shown schematically.
  • Working positions 1 and 2 are offset by 180 degrees.
  • the pressing process P1 and the ejection process A1 take place.
  • the working position 2 the pressing process P2 and the ejection process A2 take place, the pressing and ejection takes place while the press table 11 is at a standstill.
  • the die F is filled during the transport of the work table 11 from one working position to the other Working position in the direction of the arrow 3.
  • the filling path is indicated by the arc segments 4 and 5.
  • the lower punch of the die which is also not shown, is moved downward via a cam, not shown in the drawing, so that the powder is sucked into the filling space of the die.
  • Overfilling is also possible along the filling path during further transport of the turntable, in that the lower punch initially allows a greater filling height and the lower punch is raised to the exact filling height before leaving the die opening of the filling area.
  • the control takes place via a lower cam, which can be adjusted and adjusted. This allows the weight tolerance of the filling quantity to be adjusted and readjusted.
  • Fig. 2 shows a schematic representation of the press table 11 with three working positions 1, 2 and 3, which are each offset by 120 degrees. In each working position P1, P2 and P3 are pressed and A1, A2 and A3 are ejected. The filling F takes place in the three intermediate areas 4, 5, 6 during the transport of the press table 11 in the direction of the arrow 7 from one working position to the other.
  • the filling path during which the die opening is moved under the filling device should be kept the same for the outside and inside openings. According to the invention, this takes place via a special arrangement of the filling device.
  • the filling pot of the filling device is arranged geometrically so that the filling paths are of the same length during the respective switching time of the press table.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Powder Metallurgy (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)

Abstract

Beim Herstellen von Einschicht-Preßkörpern an Preßautomaten findet der Füll-, Preß- und Ausstoßvorgang an einer Arbeitsposition statt. Die Preßleistung ist bei einem derartigen Preßautomaten sehr gering. Durch den Preßautomaten gemäß der Erfindung wird die Pressenleistung gegenüber der bisherigen Preßtechnik wesentlich gesteigert. Die Steigerung erfolgt dadurch, daß auf dem Rundtisch (11) mindestens zwei Arbeitspositionen (1, 2) in einem vorgegebenen Abstand voneinander vorgesehen sind. An jeder Arbeitsposition (1, 2) erfolgt jeweils ein Preßvorgang (P1, P2) zum Pressen des Pulvers und jeweils ein Ausstoßvorgang (A1, A2) zum Ausstoßen des fertigen Preßkörpers. Die Fülleinrichtungen sind dabei zwischen den Arbeitspositionen (1, 2) jeweils so angeordnet, daß der Fülltopf jeder Fülleinrichtung einen weiten Winkelbereich (4, 5) des Rundtisches erfaßt. Das Pressen und Ausstoßen erfolgt während des Stillstandes des Pressentisches (11) und das Füllen der Matrize erfolgt während des Transportes des Pressentisches von der einen zur anderen Arbeitsposition (1, 2).When manufacturing single-layer compacts on automatic presses, the filling, pressing and ejecting process takes place in one working position. The press performance is very low in such a press machine. The press performance according to the invention increases the press performance considerably compared to the previous press technology. The increase takes place in that at least two working positions (1, 2) are provided at a predetermined distance from one another on the rotary table (11). At each working position (1, 2) there is a pressing process (P1, P2) for pressing the powder and one ejection process (A1, A2) for ejecting the finished compact. The filling devices are arranged between the working positions (1, 2) so that the filling pot of each filling device covers a wide angular range (4, 5) of the rotary table. The pressing and ejection takes place while the press table (11) is at a standstill and the die is filled during the transport of the press table from one working position to the other (1, 2).

Description

Die Erfindung bezieht sich auf einen Preßautomaten zum Herstellen von Preßkörpern aus pulverförmigen Stoffen, bei dem ein drehbarer Rundtisch mit vertikaler Drehachse vorgesehen ist, auf dem in gleichmäßiger Teilung Fülleinrichtungen mit Fülltöpfen und Preßwerkzeuge angeordnet sind.The invention relates to an automatic press for the production of compacts from pulverulent materials, in which a rotatable rotary table with a vertical axis of rotation is provided, on which filling devices with filling pots and pressing tools are arranged in a uniform division.

Üblicherweise werden Einschicht-Preßkörper an Preßautomaten gepreßt, wobei der Füll-, Preß- und Ausstoßvorgang an einer Position stattfindet. Die Preßleistung derartiger Preßautomaten ist verhältnismäßig gering.Single-layer compacts are usually pressed on automatic presses, with the filling, pressing and ejection process taking place at one position. The press performance of such automatic presses is relatively low.

Der Erfindung liegt die Aufgabe zugrunde, die bekannten Preßautomaten dahingehend zu verbessern, daß ihre Pressenleistung wesentlich gesteigert wird.The invention has for its object to improve the known presses in such a way that their press performance is significantly increased.

Die Aufgabe wird gemäß der Erfindung dadurch gelöst, daß auf dem Rundtisch mindestens zwei Arbeitspositionen in einem vorgegebenen Abstand voneinander vorgesehen sind derart, daß an jeder Arbeitsposition jeweils ein Preßvorgang zum Pressen des Pulvers und jeweils ein Ausstoßvorgang zum Ausstoßen des fertigen Preßkörpers erfolgt und daß die Fülleinrichtungen jeweils zwischen den Arbeitspositionen so ε Ageordnet sind, daß der Fülltopf jeder Fülleinrichtung einen weiten Winkelbereich des Rundtisches erfaßt. Die Arbeitspositionen können z.B. um 180 Winkelgrade oder 120 Winkelgrade gegeneinander versetzt angeordnet sein.The object is achieved according to the invention in that on the rotary table at least two working positions are provided at a predetermined distance from one another such that at each working position there is a pressing operation for pressing the powder and one ejection operation for ejecting the finished compact and that the filling devices are arranged in such a way that the working positions the filling pot of each filling device covers a wide angular range of the rotary table. The working positions can, for example, be offset from one another by 180 angular degrees or 120 angular degrees.

Vorteilhafterweise sind die Fülltöpfe der Fülleinrichtungen über dem Rundtisch so angeordnet, daß die Füllwege während jeder Drehbewegung des Rundtisches gleich lang sind. Weiterhin ist es zweckmäßig, im Innern der Fülltöpfe Abstreifer vorzusehen.The filling pots of the filling devices are advantageously arranged above the rotary table in such a way that the filling paths are of the same length during each rotary movement of the rotary table. Furthermore, it is expedient to provide wipers inside the filling pots.

Anhand der Zeichnung und eines Ausführungsbeispiels wird die Erfindung näher erläutert. Es zeigen:

  • Fig. 1 eine schematische Darstellung des Preasentisches mit zwei Arbeitspositionen,
  • Fig. 2 eine schematische Darstellung des Pressentisches mit drei Arbeitspositionen.
The invention is explained in more detail with reference to the drawing and an exemplary embodiment. Show it:
  • 1 is a schematic representation of the show table with two working positions,
  • Fig. 2 is a schematic representation of the press table with three working positions.

In Fig. 1 ist der Pressentisch 11 mit den beiden Arbeitspositionen 1 und 2 schematisch dargestellt. Die Arbeitspositionen 1 und 2 sind um 180 Winkelgrade gegeneinander versetzt. In der Arbeitsposition 1 erfolgt der Preßvorgang P1 und der Ausstoßvorgang A1. In der Arbeitsposition 2 erfolgt der Preßvorgang P2 und der Ausstoßvorgang A2, das Pressen und Ausstoßen erfolgt während des Stillstandes des Pressentisches 11. Das Füllen F der Matrize erfolgt während des Transportes des Arbeitstisches 11 von der einen Arbeitsposition zur anderen Arbeitsposition in Richtung des Richtungspfeiles 3. Der Füllweg ist durch die Bogensegmente 4 und 5 angedeutet. Beim Füllvorgang wird über eine in der Zeichnung nicht dargestellte Kurvenscheibe der Unterstempel der ebenfalls nicht dargestellten Matrize nach unten bewegt, so daß das Pulver in den Füllraum der Matrize eingesaugt wird. Entlang das Füllweges ist beim Weitertransport des Drehtisches auch ein Überfüllen möglich, indem der Unterstempel zunächst eine größere Füllhöhe zuläßt und vor Verlassen der Matrizenöffnung des Füllbereiches der Unterstempel auf die exakte Füllhöhe angehoben wird. Die Steuerung erfolgt über eine untere Kurvenscheibe, die ein- und nachstellbar ist. Dadurch kann die Gewichtstoleranz der Füllmenge ein- und nachgeregelt werden.In Fig. 1, the press table 11 with the two working positions 1 and 2 is shown schematically. Working positions 1 and 2 are offset by 180 degrees. In working position 1, the pressing process P1 and the ejection process A1 take place. In the working position 2, the pressing process P2 and the ejection process A2 take place, the pressing and ejection takes place while the press table 11 is at a standstill. The die F is filled during the transport of the work table 11 from one working position to the other Working position in the direction of the arrow 3. The filling path is indicated by the arc segments 4 and 5. During the filling process, the lower punch of the die, which is also not shown, is moved downward via a cam, not shown in the drawing, so that the powder is sucked into the filling space of the die. Overfilling is also possible along the filling path during further transport of the turntable, in that the lower punch initially allows a greater filling height and the lower punch is raised to the exact filling height before leaving the die opening of the filling area. The control takes place via a lower cam, which can be adjusted and adjusted. This allows the weight tolerance of the filling quantity to be adjusted and readjusted.

Fig. 2 zeigt in schematischer Darstellung den Pressentisch 11 mit drei Arbeitspositionen 1, 2 und 3, die jeweils um 120 Winkelgrade versetzt angeordnet sind. In jeder Arbeitsposition wird gepreßt P1, P2 und P3 und ausgestoßen A1,'A2 und A3. Das Füllen F erfolgt in den drei dazwischenliegenden Bereichen 4, 5, 6 beim Transport des Pressentisches 11 in Richtung des Richtungspfeiles 7 von der einen zur anderen Arbeitsposition.Fig. 2 shows a schematic representation of the press table 11 with three working positions 1, 2 and 3, which are each offset by 120 degrees. In each working position P1, P2 and P3 are pressed and A1, A2 and A3 are ejected. The filling F takes place in the three intermediate areas 4, 5, 6 during the transport of the press table 11 in the direction of the arrow 7 from one working position to the other.

Häufig werden beim Mehrfach-Preßautomaten zur Erhöhung der Leistung Mehrfach-Werkzeuge eingesetzt. Um ein gleichmäßiges Füllen der verschiedenen Hohlräume der einzelnen Matrizendurchbrüche einer Mehrfach-Form zu erzielen, sollte der Füllweg während dem die Matrizenöffnung unter der Fülleinrichtung bewegt wird, bei den außen- und innenliegenden Durchbrüchen gleichgehalten werden. Dies erfolgt gemäß der Erfindung über eine besondere Anordnung der Fülleinrichtung. Der Fülltopf der Fülleinrichtung wird geometrisch so angeordnet, daß die Füllwege während der jeweiligen Schaltzeit des Pressentisches gleich lang sind. Durch Anordnen von Abstreifern im Innern der Fülltöpfe wird beim Darunterwegbewegen der Matrize die darüberlastende Pulverschicht vorabgestriffen, das Endabstreifen geschieht, wenn die Matrize mit den Öffnungen den Fülltopfbereich verläßt.Multiple tools are often used in multiple automatic presses to increase performance. In order to achieve a uniform filling of the various cavities of the individual die openings of a multiple shape, the filling path during which the die opening is moved under the filling device should be kept the same for the outside and inside openings. According to the invention, this takes place via a special arrangement of the filling device. The filling pot of the filling device is arranged geometrically so that the filling paths are of the same length during the respective switching time of the press table. By ordering wipers far in the interior of the filling pots, the overlying powder layer is pre-stripped when the die is moved underneath, the final stripping takes place when the die with the openings leaves the filling pot area.

Claims (5)

1. Preßautomat zum Herstellen von Preßkörpern aus pulverförmigen Stoffen, bei dem ein drehbarer Rundtisch mit vertikaler Drehachse vorgesehen ist, auf dem in gleichmäßiger Teilung Fülleinrichtungen mit Fülltöpfen und Preßwerkzeuge angeordnet sind, dadurch gekennzeichnet , daß auf dem Rundtisch (11) mindestens zwei Arbeitspositionen (1,2) in einem vorgegebenen Abstand voneinander vorgesehen sind derart, daß an jeder Arbeitsposition (1,2) jeweils ein Preßvorgang (P1, P2) zum Pressen des Pulvers und jeweils ein Ausstoßvorgang (A1, A2) zum Ausstoßen des fertigen Preßkörpers erfolgt und daß die Fülleinrichtungen jeweils zwischen den Arbeitspositionen (1,2) so angeordnet sind, daß der Fülltopf jeder Fülleinrichtung einen weiten Winkelbereich (4,5) des Rundtisches (11) erfaßt.1. Press machine for the production of compacts from powdery materials, in which a rotatable rotary table with a vertical axis of rotation is provided, on which filling devices with filling pots and pressing tools are arranged in uniform division, characterized in that on the rotary table (11) at least two working positions (1 , 2) are provided at a predetermined distance from one another in such a way that at each working position (1, 2) there is a pressing process (P1, P2) for pressing the powder and one ejection process (A1, A2) for ejecting the finished compact and that the filling devices are each arranged between the working positions (1, 2) so that the filling pot of each filling device covers a wide angular range (4, 5) of the rotary table (11). 2. Preßautomat nach Anspruch 1, dadurch gekennzeichnet , daß die Arbeitspositionen: (1,2) um 180 Winkelgrade gegeneinander versetzt angeordnet sind. :2. Press machine according to claim 1, characterized in that the working positions: (1,2) are arranged offset by 180 degrees to each other. : 3. Preßautomat nach Anspruch 1, dadurch gekennzeichnet , daß die Arbeitspositionen (1,2,3) um 120 Winkelgrade versetzt angeordnet sind.3. Press machine according to claim 1, characterized in that the working positions (1,2,3) are arranged offset by 120 degrees. 4. Preßautomat nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet , daß der Fülltopf jeder Fülleinrichtung über dem Rundtisch (11) so angeordnet ist, daß die Füllwege (4,5,6) während jeder Drehbewegung des Rundtisches (11) gleich lang sind.4. Press machine according to one of the preceding claims, characterized in that the filling pot of each filling device above the rotary table (11) is arranged so that the filling paths (4,5,6) during each rotary movement of the rotary table (11) are of equal length. 5. Preßautomat nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet , daß im Innern der Fülltöpfe Abstreifer vorgesehen sind.5. Press machine according to one of the preceding claims, characterized in that wipers are provided inside the filling pots.
EP80104441A 1979-08-09 1980-07-28 Press automat Expired EP0024002B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80104441T ATE7869T1 (en) 1979-08-09 1980-07-28 PRESS AUTOM.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2932372 1979-08-09
DE19792932372 DE2932372A1 (en) 1979-08-09 1979-08-09 PRESS MACHINE

Publications (3)

Publication Number Publication Date
EP0024002A2 true EP0024002A2 (en) 1981-02-18
EP0024002A3 EP0024002A3 (en) 1981-07-15
EP0024002B1 EP0024002B1 (en) 1984-06-13

Family

ID=6078079

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80104441A Expired EP0024002B1 (en) 1979-08-09 1980-07-28 Press automat

Country Status (8)

Country Link
US (1) US4362494A (en)
EP (1) EP0024002B1 (en)
JP (1) JPS5630099A (en)
AT (1) ATE7869T1 (en)
DE (2) DE2932372A1 (en)
ES (1) ES8104067A1 (en)
GR (1) GR69846B (en)
PT (1) PT71670B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012104954A1 (en) * 2012-06-08 2013-12-12 jöma GmbH Pressing device for compacting dust-like, powdery or chip-like particles, preferably metal chips, comprises stamping device having press ram, die set device with first matrix form having two die openings and die cavity, and base element

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5145692A (en) * 1991-01-02 1992-09-08 Hereford Judson A Brick making apparatus
US5648377A (en) * 1993-12-21 1997-07-15 Indena S.P.A. Formulations containing carotenoids an procarotenoids combined with polyphenols in the prevention of the damages due to an abnormal production of free radicals
ES2157726B1 (en) * 1998-06-12 2002-03-01 Bonals S A J PERFECTION IN THE ROTATING MACHINES FOR THE MANUFACTURE OF TABLETS.
FR2877243A1 (en) * 2004-11-04 2006-05-05 Ardec Servie Agencement Renova Fine powder particle compaction for recycling thermosetting powders, comprises subjecting the particles to a high speed uniaxial rotatory compression to form flakes of determined weight density and size to reinject them into an installation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR363794A (en) * 1906-03-02 1906-08-07 Arpad Ronay Method and device for making briquettes with compressible substances of all kinds without the use of agglomerating material
FR887497A (en) * 1942-11-03 1943-11-15 Press for the manufacture of agglomerates of coal or similar products
DE806222C (en) * 1950-02-21 1951-06-11 Johann Peter Spengler Press with rotating press table
DE967423C (en) * 1951-08-24 1957-11-21 Friedrich Horn Maschinenfabrik Rotary press and method for producing pellets with a rotary press

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3677673A (en) * 1970-08-25 1972-07-18 Pennwalt Corp Rotary press
US4080128A (en) * 1974-04-29 1978-03-21 Siemens Aktiengesellschaft Apparatus for the production of compacts of layerwise different composition, for heavy duty electric contacts

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR363794A (en) * 1906-03-02 1906-08-07 Arpad Ronay Method and device for making briquettes with compressible substances of all kinds without the use of agglomerating material
FR887497A (en) * 1942-11-03 1943-11-15 Press for the manufacture of agglomerates of coal or similar products
DE806222C (en) * 1950-02-21 1951-06-11 Johann Peter Spengler Press with rotating press table
DE967423C (en) * 1951-08-24 1957-11-21 Friedrich Horn Maschinenfabrik Rotary press and method for producing pellets with a rotary press

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012104954A1 (en) * 2012-06-08 2013-12-12 jöma GmbH Pressing device for compacting dust-like, powdery or chip-like particles, preferably metal chips, comprises stamping device having press ram, die set device with first matrix form having two die openings and die cavity, and base element

Also Published As

Publication number Publication date
PT71670B (en) 1981-07-01
DE3068195D1 (en) 1984-07-19
DE2932372A1 (en) 1981-02-26
EP0024002A3 (en) 1981-07-15
PT71670A (en) 1980-09-01
ES494116A0 (en) 1981-03-16
ATE7869T1 (en) 1984-06-15
US4362494A (en) 1982-12-07
ES8104067A1 (en) 1981-03-16
JPS5630099A (en) 1981-03-26
GR69846B (en) 1982-07-19
EP0024002B1 (en) 1984-06-13

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