EP0503335B1 - Presse sous vide, en particulier pour matériaux céramiques - Google Patents

Presse sous vide, en particulier pour matériaux céramiques Download PDF

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Publication number
EP0503335B1
EP0503335B1 EP92102992A EP92102992A EP0503335B1 EP 0503335 B1 EP0503335 B1 EP 0503335B1 EP 92102992 A EP92102992 A EP 92102992A EP 92102992 A EP92102992 A EP 92102992A EP 0503335 B1 EP0503335 B1 EP 0503335B1
Authority
EP
European Patent Office
Prior art keywords
press
vacuum chamber
preliminary
vacuum
horizontally
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.)
Expired - Lifetime
Application number
EP92102992A
Other languages
German (de)
English (en)
Other versions
EP0503335A1 (fr
Inventor
Eberhard Steffens
Wolfram Kunze
Klaus Lorenz
Holger Kiessling
Gunter Fiedler
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.)
KEMA MASCHINENBAU GmbH
Original Assignee
KEMA - MASCHINENBAU GmbH
KEMA - Maschinenbau GmbH
KEMA KERAMIKMASCHBAU 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 KEMA - MASCHINENBAU GmbH, KEMA - Maschinenbau GmbH, KEMA KERAMIKMASCHBAU GmbH filed Critical KEMA - MASCHINENBAU GmbH
Publication of EP0503335A1 publication Critical patent/EP0503335A1/fr
Application granted granted Critical
Publication of EP0503335B1 publication Critical patent/EP0503335B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
    • B28B3/22—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded by screw or worm
    • 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
    • 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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/38—Treating surfaces of moulds, cores, or mandrels to prevent sticking
    • B28B7/386—Cleaning

Definitions

  • the invention relates to a vacuum press for the continuous production of plastic mass strands.
  • the field of application of the invention is in particular the ceramic industry.
  • the known vacuum presses generally consist of an upper press or also a mixer and a lower press, a vacuum chamber being interposed for the purpose of vacuuming the mass.
  • the aim of the invention is to ensure rapid, comprehensive cleaning of vacuum presses.
  • the invention has for its object to enable effective cleaning of the press parts coming into contact with the mass by optimum accessibility.
  • the press housing is composed of pivotable housing elements which in turn are articulated on the press frame.
  • the horizontally foldable cylinder halves of the pre-press are connected via a flange connection to a screen plate holder which is also pivotably horizontally arranged on a U-shaped support of the press frame.
  • a sealing disk with radial and lateral sealing means is slidably arranged on this.
  • the vacuum chamber which can be vertically raised and lowered and swiveled horizontally, is detachably connected to the sealing washer using quick-release fasteners. The pivoting of the vacuum chamber is guaranteed by a joint connection with the U-shaped support.
  • the vacuum chamber is placed on the filling opening of the lower press and fastened with quick-release fasteners.
  • the mixing trough of the lower and the pre-press each form two housing elements, the inner wall of which is adapted to the contour of the cone and the press screw and are connected to the press frame so that they can be pivoted radially via vertically displaceable brackets.
  • the vacuum press according to the invention is shown schematically in FIG. 1, the lower press being omitted for reasons of clarity.
  • the cylinder of the pre-press is divided vertically into two cylinder halves 5.
  • a horizontal pivoting of the cylinder halves 5 is possible via a swivel joint 2, which connects the cylinder halves 5 and the press frame.
  • Their dashed representation shows the cylinder halves 5 in the cleaning position.
  • the cylinder halves 5 have a flange part 4, which are detachably connected to the flange ring 8 of the screen plate holder 3 by means of quick-release fasteners known per se.
  • the sieve plate holder 3 is also designed to be horizontally pivotable and is connected to a U-shaped support 7 of the press frame by means of a joint 16.
  • a corresponding arrow shows the direction of rotation.
  • the screen plate holder 3 shown in broken lines is in the cleaning position.
  • a sealing washer 6 is pushed on.
  • This has a radial sealing element 12 and on the end face a second sealing element 13, which ensures the end seal on the vacuum chamber 1.
  • This can be connected to the sealing disk 6 by means of quick fasteners 14.
  • the vacuum chamber 1 is in turn vertically raised and lowered, for which purpose an eccentric, not shown in the drawing, is used.
  • the vertical movability of the vacuum chamber 1 prevents damage to the seal arranged on the underside of the vacuum chamber 1 when the vacuum chamber 1 is placed or lifted off the feed opening of the lower press.
  • the vacuum chamber 1 has hinges which are also connected to the U-shaped support 7.
  • FIG. 3 shows the design of the housing elements 9; 9 'in the area of the adapters 10, which support the mass insertion into the screw 17 of the pre-press the mixing trough.
  • the housing elements 9 are connected via an articulated connection 18 to a horizontally displaceable holder 11, which in turn is mounted in a guide tube 19 fastened to the press frame.
  • the housing element 9 time Fig. 2 in the cleaning position.
  • the lower press is also equipped with corresponding housing elements 9; 9 '. All swiveling press parts can be fixed in their working position by means of quick-release fasteners known per se.
  • the connection between the vacuum chamber 1 and the sealing disk 6 is completely eliminated. Furthermore, the connection between the vacuum chamber 1 and the filling opening of the lower press has to be released. Now, by actuating the eccentric, the vacuum chamber can be lifted and pivoted out of its functional position. Now the quick-release fasteners are to be disengaged from the flange ring 8 of the screen plate holder 3 and the flange parts 4 of the cylinder halves 5 and the screen plate holder 3 can be swung out. After loosening the connecting screws of the cylinder halves 5, these are to be opened into their cleaning position.
  • the quick-release fasteners of the housing elements 9; 9 'forming the mixing trough must also be released and then pulled out horizontally by means of the holder 11 and pivoted radially by means of the articulated connection 18.
  • the housing elements of the lower press should also be brought into the cleaning position in the same way.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Press Drives And Press Lines (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Cleaning In General (AREA)

Claims (1)

  1. Presse sous vide, en particulier pour matériaux céramiques, comprenant essentiellement une presse primaire, une chambre à vide avec une partie supérieure rabattable et une presse secondaire présentant un vérin rabattable dans le sens horizontal, caractérisée en ce que le carter de la presse est composé de plusieurs éléments amovibles, les moitiés de vérin (5) rabattables dans le sens horizontal de la presse primaire étant raccordées, par une liaison à brides, (4 ; 8) à un support de plaque perforée (3) disposé de manière à pouvoir être basculé dans le sens horizontal, sur un appui (7) en U et portant, à l'autre extrémité, un joint d'étanchéité (6) relié de manière amovible à la chambre vide (1) pouvant être déplacée dans le sens vertical et basculée dans le sens horizontal et étant également disposée sur l'appui (7), en ce que la chambre vide (1) est montée sur le raccord de remplissage de la presse secondaire et fixée sur ce dernier à l'aide de fermetures rapides, en ce que la cuve de mélange pour les presses primaire et secondaire est composée de deux éléments de boîtier (9, 9') adaptés au contour du dispositif d'alimentation (10), d'une part, et aux vis de serrage des presses primaire et secondaire, d'autre part, et en ce que les éléments de boîtier (9, 9') peuvent basculer dans le sens radial et qu'ils sont reliés au châssis des presses par des fixations (11) pouvant être déplacées dans le sens vertical.
EP92102992A 1991-03-14 1992-02-22 Presse sous vide, en particulier pour matériaux céramiques Expired - Lifetime EP0503335B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4108342A DE4108342C2 (de) 1991-03-14 1991-03-14 Vakuumpresse, insbesondere für keramische Massen
DE4108342 1991-03-14

Publications (2)

Publication Number Publication Date
EP0503335A1 EP0503335A1 (fr) 1992-09-16
EP0503335B1 true EP0503335B1 (fr) 1993-12-08

Family

ID=6427316

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92102992A Expired - Lifetime EP0503335B1 (fr) 1991-03-14 1992-02-22 Presse sous vide, en particulier pour matériaux céramiques

Country Status (9)

Country Link
US (1) US5299927A (fr)
EP (1) EP0503335B1 (fr)
JP (1) JPH05212712A (fr)
CN (1) CN1028157C (fr)
BR (1) BR9200847A (fr)
CZ (1) CZ281928B6 (fr)
DE (2) DE4108342C2 (fr)
ES (1) ES2046902T3 (fr)
RU (1) RU2041062C1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2375071B (en) * 2001-04-03 2004-09-15 William Roy Powel Extrusion die(slipper)adjustment mechanism
CN103419273B (zh) * 2012-05-22 2015-09-23 青岛青锻锻压机械有限公司 电动螺旋压砖机
CN104289472A (zh) * 2014-07-31 2015-01-21 广西北流仲礼瓷业有限公司 一种用于陶瓷制造的除尘器
CN107567373B (zh) * 2015-03-20 2020-03-24 Siti-B&T集团股份公司 用于陶瓷产品等的压机的端板组件
CN106292731B (zh) * 2015-06-08 2019-02-15 佛山市恒力泰机械有限公司 一种上模与下模夹持粉料同步下降的填料方法

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1356691A (en) * 1919-01-16 1920-10-26 Farrel Foundry Rubber-mixer
DE678466C (de) * 1936-10-02 1939-07-15 Gudrun Welzel Geb Philipp Schneckenpresse mit Aufbereitung und Zufuehrung der keramischen Masse in geschnitzelter Form
US2257695A (en) * 1939-03-23 1941-09-30 Lihotzky Emil Worm press for the manufacture of alimentary pastes
GB607076A (en) * 1946-01-25 1948-08-25 Charles Leslie Willis Improvements in and relating to machines for de-airing plastic materials
GB765383A (en) * 1954-03-01 1957-01-09 Farrel Birmingham Co Apparatus for extruding plastic material
US2918714A (en) * 1957-03-22 1959-12-29 Garvey James Split plodder nozzles
DE1216171B (de) * 1963-07-20 1966-05-05 Soest Ferrum Appbau G M B H Schneckenpresse zum Verpressen von Steinzeugmassen od. dgl.
US3304579A (en) * 1965-03-30 1967-02-21 Jr Thomas Ashworth Dual hinged side delivery head for extruders
US3574891A (en) * 1968-08-19 1971-04-13 French Oil Mill Machinery Mechanical screw press
DE1805868A1 (de) * 1968-10-29 1970-05-27 Krone Kg Strangpresse
NL6818261A (fr) * 1968-12-19 1970-06-23
US3561371A (en) * 1969-04-10 1971-02-09 Ralston Purina Co Extruder door
DE2423785C2 (de) * 1974-05-16 1980-06-12 Werner & Pfleiderer, 7000 Stuttgart Verschleißeinsatz für das Schneckengehäuse einer Doppelschneckenstrangpresse oder -Spritzgießmaschine
SU514708A1 (ru) * 1974-12-08 1976-05-25 Проектно-конструкторское бюро по проектированию оборудования для производства пластических масс и синтетических смол Устройство дл смешивани пластичных материалов
FR2326289A1 (fr) * 1975-10-01 1977-04-29 Poudres & Explosifs Ste Nale Boudineuse a fourreau ouvrable
DE2726963C3 (de) * 1977-06-15 1980-04-30 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Vorrichtung zum Abziehen eines Zylinderteiles von einem Schneckenextruder
US4385876A (en) * 1978-05-31 1983-05-31 Baker Perkins Inc. Split wear liner for twin bore barrel assembly
JPS56113A (en) * 1979-06-15 1981-01-06 Matsushita Electric Works Ltd Kneader casing
JPH0517223Y2 (fr) * 1987-01-05 1993-05-10

Also Published As

Publication number Publication date
US5299927A (en) 1994-04-05
CZ281928B6 (cs) 1997-04-16
EP0503335A1 (fr) 1992-09-16
CN1064642A (zh) 1992-09-23
BR9200847A (pt) 1992-11-24
ES2046902T3 (es) 1994-02-01
RU2041062C1 (ru) 1995-08-09
CS74892A3 (en) 1992-09-16
DE4108342C2 (de) 1994-01-13
CN1028157C (zh) 1995-04-12
JPH05212712A (ja) 1993-08-24
DE4108342A1 (de) 1992-09-24
DE59200030D1 (de) 1994-01-20

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