EP1048450A3 - Method to determine the position of a plunger in a powder press - Google Patents

Method to determine the position of a plunger in a powder press Download PDF

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Publication number
EP1048450A3
EP1048450A3 EP00103757A EP00103757A EP1048450A3 EP 1048450 A3 EP1048450 A3 EP 1048450A3 EP 00103757 A EP00103757 A EP 00103757A EP 00103757 A EP00103757 A EP 00103757A EP 1048450 A3 EP1048450 A3 EP 1048450A3
Authority
EP
European Patent Office
Prior art keywords
die
des
press ram
computer
rechner
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.)
Withdrawn
Application number
EP00103757A
Other languages
German (de)
French (fr)
Other versions
EP1048450A2 (en
Inventor
Jürgen Hinzpeter
Ingo Schmidt
Jörg Reitberger
Ulrich Gathmann
Klaus Peter R-Ssmann
Thomas Pannewitz
Stephan Mallon
Alexander Oldenburg
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.)
Fette GmbH
Original Assignee
Fette 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 Fette GmbH filed Critical Fette GmbH
Publication of EP1048450A2 publication Critical patent/EP1048450A2/en
Publication of EP1048450A3 publication Critical patent/EP1048450A3/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02—Compacting only
    • B22F3/03—Press-moulding apparatus therefor
    • 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
    • B30B11/005—Control arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Control Of Presses (AREA)

Abstract

Verfahren zur Positionsbestimmung eines Preßstempels bezüglich einer Matrize in einer Pulverpresse mit folgenden Schritten:

  • in einem Rechner wird ein Referenzmaß gespeichert, das einem vorgegebenen relativ geringen Abstand des Preßstempels zur Oberkante oder Unterkante der Matrize entspricht,
  • im Rechner wird ein Referenzoffset gespeichert, der dadurch ermittelt wird, daß die Impulse eines vom Preßstempel betätigten inkrementalen Wegaufnehmers beim Hochfahren des Preßstempels vom Referenzmaß bis zu einem Indeximpuls gezählt werden,
  • oberhalb des Referenzoffset wird die Position des Preßstempels mit Hilfe eines absoluten Wegaufnehmers gemessen, der den Weg des Verstellkolbens für den Preßstempel ermittelt und dessen Meßwerte in den Rechner gegeben werden und
  • sobald die Istposition des Preßstempels gleich oder kleiner ist als das Summenmaß von Referenzoffset und Referenzmaß, werden die Impulse des inkrementalen Wegaufnehmers zur Positionierung in den Rechner gegeben.
Figure 00000001
Method for determining the position of a press ram with respect to a die in a powder press with the following steps:
  • a reference measurement is stored in a computer, which corresponds to a predetermined, relatively small distance of the press die from the upper or lower edge of the die,
  • a reference offset is stored in the computer, which is determined by counting the pulses of an incremental displacement sensor actuated by the press ram from the reference dimension to an index pulse when the press ram is raised,
  • Above the reference offset, the position of the press ram is measured with the aid of an absolute displacement sensor, which determines the path of the adjusting piston for the press ram and the measured values of which are fed into the computer and
  • As soon as the actual position of the press ram is equal to or less than the sum of the reference offset and reference dimension, the impulses of the incremental displacement sensor are put into the computer for positioning.
Figure 00000001
EP00103757A 1999-04-30 2000-02-23 Method to determine the position of a plunger in a powder press Withdrawn EP1048450A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19919693 1999-04-30
DE19919693A DE19919693C2 (en) 1999-04-30 1999-04-30 Method for determining the position of a ram of a powder press

Publications (2)

Publication Number Publication Date
EP1048450A2 EP1048450A2 (en) 2000-11-02
EP1048450A3 true EP1048450A3 (en) 2002-09-04

Family

ID=7906413

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00103757A Withdrawn EP1048450A3 (en) 1999-04-30 2000-02-23 Method to determine the position of a plunger in a powder press

Country Status (3)

Country Link
US (1) US6442859B1 (en)
EP (1) EP1048450A3 (en)
DE (1) DE19919693C2 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10135283C2 (en) * 2001-07-19 2003-09-18 Fette Wilhelm Gmbh Process for pressing powder material
DE10212315B4 (en) * 2002-03-20 2004-04-29 Wilhelm Fette Gmbh Position measuring system for a powder press
US7194820B2 (en) * 2005-05-09 2007-03-27 Mate Precision Tooling Inc. Punch press alignment instrument
US7484312B2 (en) * 2005-05-09 2009-02-03 Mate Precision Tooling, Inc. Punch press alignment instrument
DE102005052158B4 (en) 2005-11-02 2008-01-03 Fette Gmbh Method and measuring system for forming a reference in a powder press
CN100415502C (en) * 2006-10-16 2008-09-03 许阳 Special programmable electric governing system fordrypowder press and its control mode
CN101422970B (en) * 2007-11-02 2012-10-17 北京中科三环高技术股份有限公司 Positional control bidirectional pressed moulding press
DE102008015820B4 (en) * 2008-03-27 2013-02-28 Fette Compacting Gmbh Apparatus and method for measuring the vertical position of upper and lower punches of a rotary tablet press
FR2951989B1 (en) * 2009-10-30 2012-02-03 Medelpharm INSTALLATION FOR PRODUCING A SOLID PRODUCT FROM ONE OR MORE PULVERULENT MATERIALS
JP5032690B1 (en) * 2011-07-27 2012-09-26 住友電気工業株式会社 Compacted body
DE102016120195A1 (en) * 2016-10-24 2018-04-26 Dorst Technologies Gmbh & Co. Kg press means
WO2019212999A1 (en) * 2018-04-30 2019-11-07 Wilson Tool International Inc. Tool tracking and data collection assembly
CH716048B1 (en) * 2019-04-09 2024-02-15 Dietmar Kramer Dr Sc Techn Eth Phd Method and a measuring device for measuring utensils for presses.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4270890A (en) * 1979-06-19 1981-06-02 Dorst-Keramikmaschinen-Bau Apparatus for controlling the height of pressed workpieces of ceramic powder or other material in a press
DE3425221A1 (en) * 1983-07-12 1985-01-24 Aktiebolaget Bofors, Bofors Control circuit for a material-processing machine
EP0417485A2 (en) * 1989-09-12 1991-03-20 Dorst Maschinen und Anlagenbau Otto Dorst und Dipl.-Ing Walter Schlegel GmbH & Co. Press for making dimensionally stable pressed articles from particulate material
DE4040410C1 (en) * 1989-12-21 1991-11-07 Bernhard Dr.-Ing. 4782 Erwitte De Juergenhake Tooling for crimping electrical connectors - comprises crank press with spring-loaded plunger, connected torsionally to transducer providing displacement measurement
JPH08155694A (en) * 1994-11-30 1996-06-18 Yoshitsuka Seiki:Kk Method for ensuring position of die in powder molding press
WO2000020192A1 (en) * 1998-10-07 2000-04-13 Dorst-Maschinen- Und Anlagen-Bau Gmbh & Co.Kg Press for producing shaped bodies

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2542938A (en) * 1949-06-29 1951-02-20 David L Morris Tool setter for lathes
SE398981B (en) * 1976-05-11 1978-01-30 Malmberg Sven Kurt B PROCEDURE FOR FIXING AND CENTERING STOPPING TOOLS AND DEVICE FOR PERFORMING THE PROCEDURE
JPS5838258B2 (en) * 1979-12-01 1983-08-22 双葉電子工業株式会社 Mold matching method and device
CH646895A5 (en) * 1982-05-18 1984-12-28 Bobst Sa DEVICE FOR MAKING THE DIES OF A PLATE PRESS.
US4485660A (en) * 1982-12-29 1984-12-04 Toyota Jidosha Kabushiki Kaisha Press sublifter with a movable gauge

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4270890A (en) * 1979-06-19 1981-06-02 Dorst-Keramikmaschinen-Bau Apparatus for controlling the height of pressed workpieces of ceramic powder or other material in a press
DE3425221A1 (en) * 1983-07-12 1985-01-24 Aktiebolaget Bofors, Bofors Control circuit for a material-processing machine
EP0417485A2 (en) * 1989-09-12 1991-03-20 Dorst Maschinen und Anlagenbau Otto Dorst und Dipl.-Ing Walter Schlegel GmbH & Co. Press for making dimensionally stable pressed articles from particulate material
DE4040410C1 (en) * 1989-12-21 1991-11-07 Bernhard Dr.-Ing. 4782 Erwitte De Juergenhake Tooling for crimping electrical connectors - comprises crank press with spring-loaded plunger, connected torsionally to transducer providing displacement measurement
JPH08155694A (en) * 1994-11-30 1996-06-18 Yoshitsuka Seiki:Kk Method for ensuring position of die in powder molding press
WO2000020192A1 (en) * 1998-10-07 2000-04-13 Dorst-Maschinen- Und Anlagen-Bau Gmbh & Co.Kg Press for producing shaped bodies

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 10 31 October 1996 (1996-10-31) *

Also Published As

Publication number Publication date
US6442859B1 (en) 2002-09-03
DE19919693C2 (en) 2001-08-23
EP1048450A2 (en) 2000-11-02
DE19919693A1 (en) 2000-11-23

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