EP0911129A3 - Mould for making pressed articles - Google Patents

Mould for making pressed articles Download PDF

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Publication number
EP0911129A3
EP0911129A3 EP98111929A EP98111929A EP0911129A3 EP 0911129 A3 EP0911129 A3 EP 0911129A3 EP 98111929 A EP98111929 A EP 98111929A EP 98111929 A EP98111929 A EP 98111929A EP 0911129 A3 EP0911129 A3 EP 0911129A3
Authority
EP
European Patent Office
Prior art keywords
chambers
accumulator
molding
pressure
hydraulic cylinders
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Withdrawn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
EP98111929A
Other languages
German (de)
French (fr)
Other versions
EP0911129A2 (en
Inventor
Rudolf Braungardt
Erwin Schmucker
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.)
Kobra Formen GmbH
Original Assignee
Kobra Formen und Anlagenbau 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 Kobra Formen und Anlagenbau GmbH filed Critical Kobra Formen und Anlagenbau GmbH
Publication of EP0911129A2 publication Critical patent/EP0911129A2/en
Publication of EP0911129A3 publication Critical patent/EP0911129A3/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
    • B28B3/021—Ram heads of special form
    • 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
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
    • B28B3/04—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form with one ram per mould
    • B28B3/06—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form with one ram per mould with two or more ram and mould sets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B30B15/065—Press rams
    • B30B15/067—Press rams with means for equalizing the pressure exerted by a plurality of press rams

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)

Abstract

Die Form weist mehrere, unten und oben offene Formkammern (3) zur Herstellung von Betonformsteinen auf. Jeder Formkammer (3) ist eine Druckplatte (2) zugeordnet, die über Hydraulikzylinder (7) mit der Auflastplatte (1) der Formmaschine verbunden sind. Alle Hydraulikzylinder (7) sind durch den vorwählbaren Ladedruck eines hydraulischen Speichers (26) gleichmäßig beaufschlagbar, so daß die Druckplatten (2) während des ersten Verdichtungsvorganges bei ungleichmäßiger Befüllung der Formkammern (3) in vertikaler Richtung beweglich sind. Dadurch ergibt sich eine gleichmäßige Verdichtung der Betonmasse in allen Formkammern (3). Nach Beendigung des ersten Verdichtungsvorganges werden die Druckplatten (2) durch den Ladedruck im Speicher (26) in ihre untere Anschlagstellung gefahren und ein Absperrventil (28), das sich in der Verbindungsleitung vom Speicher (26) zu den Hydraulikzylindern (7) befindet, geschlossen. Dadurch sind die Druckplatten (2) in vertikaler Richtung nicht mehr beweglich, sondern starr. In einem zweiten Verdichtungsvorgang wird die Betonmasse in den Formkammern (3), die nach dem ersten Verdichtungsvorgang nachgefüllt wurden, auf eine gleichemäßige Höhe gepreßt.

Figure 00000001
The mold has a plurality of mold chambers (3) open at the top and bottom for the production of concrete blocks. Each molding chamber (3) is assigned a pressure plate (2) which is connected to the load plate (1) of the molding machine via hydraulic cylinders (7). All hydraulic cylinders (7) can be acted upon uniformly by the preselectable boost pressure of a hydraulic accumulator (26), so that the pressure plates (2) are movable in the vertical direction during the first compression process when the mold chambers (3) are filled unevenly. This results in a uniform compaction of the concrete mass in all molding chambers (3). After completion of the first compression process, the pressure plates (2) are moved into their lower stop position by the boost pressure in the accumulator (26) and a shut-off valve (28), which is located in the connecting line from the accumulator (26) to the hydraulic cylinders (7), is closed . As a result, the pressure plates (2) are no longer movable in the vertical direction, but rather rigid. In a second compaction process, the concrete mass in the molding chambers (3), which were refilled after the first compaction process, is pressed to a uniform height.
Figure 00000001
EP98111929A 1997-08-27 1998-06-27 Mould for making pressed articles Withdrawn EP0911129A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1997137248 DE19737248A1 (en) 1997-08-27 1997-08-27 Mold for making molded bodies
DE19737248 1997-08-27

Publications (2)

Publication Number Publication Date
EP0911129A2 EP0911129A2 (en) 1999-04-28
EP0911129A3 true EP0911129A3 (en) 2000-08-16

Family

ID=7840277

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98111929A Withdrawn EP0911129A3 (en) 1997-08-27 1998-06-27 Mould for making pressed articles

Country Status (2)

Country Link
EP (1) EP0911129A3 (en)
DE (1) DE19737248A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10034167A1 (en) * 2000-07-13 2002-01-24 Kobra Formen & Anlagenbau Gmbh Mold for shaping concrete bricks, of different cross section shapes, has a main chamber and an ante-chamber for each molding chamber with vertical dies at each
ITMI20020020U1 (en) * 2002-01-14 2003-07-14 Welko Ind Spa MOLDING PRESS FOR PRODUCTS OF CERAMIC MATERIAL
JP2010042426A (en) * 2008-08-13 2010-02-25 Ihi Corp Slide structure of press
JP6031127B2 (en) * 2012-03-12 2016-11-24 ニーンシュテット ゲーエムベーハー Method for forming a portion of a food in multiple containers
ITPD20120277A1 (en) * 2012-09-20 2014-03-21 Mass Spa TILE MOLD
CN106863544B (en) * 2017-03-16 2023-05-30 山西大学 Device for static pressure foaming of foam concrete load

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1250323B (en) * 1967-09-14 RINO Werke o HG Maschinen fabrik Bammental bei Heidelberg Machine for Her put moldings, in particular of thin slabs of concrete or the like
US3890413A (en) * 1974-08-15 1975-06-17 Hydramet American Inc Apparatus and method for compacting particulate materials
DE2406688A1 (en) * 1974-02-13 1975-08-14 Oldenburger Betonsteinwerke Sealing installation for concrete block moulds - reduces spread of compressive strength of blocks to minimum

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1759429C3 (en) * 1968-04-30 1973-12-20 Villeroy & Boch Keramische Werke Kg, 6642 Mettlach Device for pressing several plate-shaped pellets at the same time
DE19537077A1 (en) * 1995-10-05 1997-04-10 Rampf Formen Gmbh Multichamber mould for manufacture of concrete moulded components

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1250323B (en) * 1967-09-14 RINO Werke o HG Maschinen fabrik Bammental bei Heidelberg Machine for Her put moldings, in particular of thin slabs of concrete or the like
DE2406688A1 (en) * 1974-02-13 1975-08-14 Oldenburger Betonsteinwerke Sealing installation for concrete block moulds - reduces spread of compressive strength of blocks to minimum
US3890413A (en) * 1974-08-15 1975-06-17 Hydramet American Inc Apparatus and method for compacting particulate materials

Also Published As

Publication number Publication date
EP0911129A2 (en) 1999-04-28
DE19737248A1 (en) 1999-03-18

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