EP2944457A3 - Pressure control device and method for controlling a pressure for a ceramic and/or metal powder press - Google Patents

Pressure control device and method for controlling a pressure for a ceramic and/or metal powder press Download PDF

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Publication number
EP2944457A3
EP2944457A3 EP15160936.9A EP15160936A EP2944457A3 EP 2944457 A3 EP2944457 A3 EP 2944457A3 EP 15160936 A EP15160936 A EP 15160936A EP 2944457 A3 EP2944457 A3 EP 2944457A3
Authority
EP
European Patent Office
Prior art keywords
pressure
control device
cylinder
ceramic
controlling
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Withdrawn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
EP15160936.9A
Other languages
German (de)
French (fr)
Other versions
EP2944457A2 (en
Inventor
Hälterlein Max
Dr. Roland Menzel
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.)
DORST Technologies GmbH and Co KG
Original Assignee
DORST Technologies GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DORST Technologies GmbH and Co KG filed Critical DORST Technologies GmbH and Co KG
Publication of EP2944457A2 publication Critical patent/EP2944457A2/en
Publication of EP2944457A3 publication Critical patent/EP2944457A3/en
Withdrawn legal-status Critical Current

Links

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
    • B30B11/005—Control arrangements
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses
    • B30B15/22—Control arrangements for fluid-driven presses controlling the degree of pressure applied by the ram during the pressing stroke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
    • F15B11/032—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of fluid-pressure converters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
    • F15B11/036—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of servomotors having a plurality of working chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20576—Systems with pumps with multiple pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/214—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being hydrotransformers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/625—Accumulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7107—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being mechanically linked

Abstract

Die Erfindung bezieht sich auf eine Drucksteuerungsvorrichtung (11) und ein Verfahren zum Steuern eines auszugebenden Drucks für eine Keramik- und/oder Metallpulver-Presse. Die Drucksteuerungsvorrichtung (11) weist auf zumindest einen Antriebs-Zylinder (15) und zumindest zwei, insbesondere zumindest drei oder mehr weitere Zylinder (18 - 23), und einen Kolbenträger (24) mit zumindest einem Antriebs-Kolben (26) und zumindest zwei, insbesondere zumindest drei oder mehr weiteren Kolben (27 - 32), wobei der zumindest eine Antriebs-Kolben (26) in dem zumindest einen Antriebs-Zylinder (15) angeordnet ist und die weiteren Kolben (27 - 32) jeweils in einer Zylinderkammer der der weiteren Zylinder (18 - 23) angeordnet sind, und wobei ein Druck (P18; P19) in mindestens einem Teil der Zylinderkammern der weiteren Zylinder (18, 23; 19, 22) zu- und wegzuschaltbar ausgestaltet ist.

Figure imgaf001
The invention relates to a pressure control device (11) and a method for controlling a pressure to be output for a ceramic and / or metal powder press. The pressure control device (11) has at least one drive cylinder (15) and at least two, in particular at least three or more further cylinders (18-23), and a piston carrier (24) with at least one drive piston (26) and at least two , in particular at least three or more further pistons (27-32), wherein the at least one drive piston (26) is arranged in the at least one drive cylinder (15) and the further pistons (27-32) are each arranged in a cylinder chamber the further cylinder (18 - 23) are arranged, and wherein a pressure (P18, P19) in at least a part of the cylinder chambers of the further cylinder (18, 23, 19, 22) designed to be switched on and wegzuschaltbar.
Figure imgaf001
EP15160936.9A 2014-04-10 2015-03-26 Pressure control device and method for controlling a pressure for a ceramic and/or metal powder press Withdrawn EP2944457A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014105111.4A DE102014105111A1 (en) 2014-04-10 2014-04-10 Pressure control device and method for controlling a pressure to be output for a ceramic and / or metal powder press

Publications (2)

Publication Number Publication Date
EP2944457A2 EP2944457A2 (en) 2015-11-18
EP2944457A3 true EP2944457A3 (en) 2015-12-16

Family

ID=52874936

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15160936.9A Withdrawn EP2944457A3 (en) 2014-04-10 2015-03-26 Pressure control device and method for controlling a pressure for a ceramic and/or metal powder press

Country Status (2)

Country Link
EP (1) EP2944457A3 (en)
DE (1) DE102014105111A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE608172C (en) * 1933-03-20 1935-01-18 Maurice Michael Eaton Hydraulic press
DE2104713A1 (en) * 1971-02-02 1972-09-14 Uzina Mecanica Gaz Metan Medias, Medias (Rumänien) Hydraulic press with several power levels
EP0320914A2 (en) * 1987-12-14 1989-06-21 KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. Method of controlling hydraulic press
US5971027A (en) * 1996-07-01 1999-10-26 Wisconsin Alumni Research Foundation Accumulator for energy storage and delivery at multiple pressures
EP1287975A2 (en) * 2001-08-31 2003-03-05 Fette GmbH Process for producing molded parts in a powder press
WO2005035232A1 (en) * 2003-10-09 2005-04-21 The Coe Manufacturing Company Platen press

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50115141D1 (en) * 2000-09-20 2009-11-12 Laeis Gmbh CONTROL DEVICE FOR A HYDRAULIC PRESS AND METHOD OF OPERATING THEREOF
DE102011114241B4 (en) * 2011-06-09 2014-09-04 Sms Meer Gmbh Hydraulic drive device, hydraulic output stage of a hydraulic servo-control valve, servo-control valve and powder press
DE102011120226B4 (en) * 2011-12-03 2013-08-14 Hydac Fluidtechnik Gmbh System for improving the energy efficiency of hydraulic systems
DE202012101725U1 (en) * 2012-05-10 2013-07-11 Dieffenbacher GmbH Maschinen- und Anlagenbau Device for the adaptive control of a hydraulic press

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE608172C (en) * 1933-03-20 1935-01-18 Maurice Michael Eaton Hydraulic press
DE2104713A1 (en) * 1971-02-02 1972-09-14 Uzina Mecanica Gaz Metan Medias, Medias (Rumänien) Hydraulic press with several power levels
EP0320914A2 (en) * 1987-12-14 1989-06-21 KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. Method of controlling hydraulic press
US5971027A (en) * 1996-07-01 1999-10-26 Wisconsin Alumni Research Foundation Accumulator for energy storage and delivery at multiple pressures
EP1287975A2 (en) * 2001-08-31 2003-03-05 Fette GmbH Process for producing molded parts in a powder press
WO2005035232A1 (en) * 2003-10-09 2005-04-21 The Coe Manufacturing Company Platen press

Also Published As

Publication number Publication date
DE102014105111A1 (en) 2015-10-15
EP2944457A2 (en) 2015-11-18

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