EP0695611B1 - Verfahren und Vorrichtung zum Herstellen von profilierten, rohrförmigen Presslingen aus plastischem Material wie Ton und dergleichen - Google Patents

Verfahren und Vorrichtung zum Herstellen von profilierten, rohrförmigen Presslingen aus plastischem Material wie Ton und dergleichen Download PDF

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Publication number
EP0695611B1
EP0695611B1 EP95111648A EP95111648A EP0695611B1 EP 0695611 B1 EP0695611 B1 EP 0695611B1 EP 95111648 A EP95111648 A EP 95111648A EP 95111648 A EP95111648 A EP 95111648A EP 0695611 B1 EP0695611 B1 EP 0695611B1
Authority
EP
European Patent Office
Prior art keywords
press mould
die
rubber bladder
mould
press
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
EP95111648A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0695611A2 (de
EP0695611A3 (de
Inventor
Marin Schnorr
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0695611A2 publication Critical patent/EP0695611A2/de
Publication of EP0695611A3 publication Critical patent/EP0695611A3/de
Application granted granted Critical
Publication of EP0695611B1 publication Critical patent/EP0695611B1/de
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
    • 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
    • B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
    • B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
    • B28B13/0205—Feeding the unshaped material to moulds or apparatus for producing shaped articles supplied to the moulding device in form of a coherent mass of material, e.g. a lump or an already partially preshaped tablet, pastil or the like
    • 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
    • B28B21/00—Methods or machines specially adapted for the production of tubular articles
    • B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
    • B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
    • B28B21/18—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means using expansible or retractable mould or core elements
    • B28B21/20—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means using expansible or retractable mould or core elements using inflatable cores, e.g. having a frame inside the inflatable part of the core
    • B28B21/205—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means using expansible or retractable mould or core elements using inflatable cores, e.g. having a frame inside the inflatable part of the core having a rigid frame inside the inflatable part of the core
    • 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
    • B28B21/00—Methods or machines specially adapted for the production of tubular articles
    • B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
    • B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
    • B28B21/36—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means applying fluid pressure or vacuum to the material
    • B28B21/38—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means applying fluid pressure or vacuum to the material introducing the material wholly or partly under pressure ; Injection-moulding machines
    • 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
    • B28B3/26—Extrusion dies
    • 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
    • B28B5/00—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping
    • B28B5/06—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping in moulds on a turntable
    • B28B5/08—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping in moulds on a turntable intermittently rotated

Definitions

  • the invention relates to a method for producing outside and inside profiled, tubular compacts plastic material such as clay or the like under Use of a two-part mold with a porous one Lining.
  • the invention further relates to a device for Execution of the procedure.
  • a process for the production of pipes from stoneware and an appropriate one to perform this procedure Device are known from DE-A-31 00 009.
  • An in Longitudinally divided horizontally into two mold halves The mold has the external shape of the one to be manufactured Rohres defining shape.
  • the Diameter corresponds to the inside diameter of the mold.
  • a mandrel in the form retractable In the opposite direction to the plunger is a mandrel in the form retractable, the diameter of which is the inside diameter of the corresponds to the pipe to be manufactured.
  • DE-A-21 04 632 describes one method and one Device for the production of branch pipes Ceramic material known.
  • the two-part mold first filled a plastic ceramic mass. Subsequently press cores are inserted into each opening of the mold, the ends of which are so complementary to one another have that they are in the retracted position of the Press cores lie against each other to create a continuous Creating cavity.
  • CH-A-453 180 is a press for manufacturing cylindrical tubes or rectangular hollow blocks known.
  • This press uses an immobile one Cylinder core.
  • the pressing pressure is used by a plurality of radially movable press jaws with concentric to Cylinder core produces domed pressing surfaces that way are arranged so that they are in the pressing position form a closed outer cylinder around the cylinder core.
  • the plastic material flows in all pressing devices under the effect of the pressure in the mold cavities.
  • textures arise in the material. Is particularly pronounced this if the material is made of clay, which is pretty is processed dry to allow rapid demoulding To allow compacts. Textures lead to an increased Waste when burning as well as reduced Durability, especially frost resistance, of the burned Parts.
  • the ceramic and clay material flowing over long distances further leads to increased wear of the Mold surfaces, especially at the parting surfaces the shape where excess material is squeezed out.
  • DE-A-34 44 322 is a method of the beginning mentioned type and one for performing the method suitable device known, in which the textures be reduced to a softly prepared clay material is used.
  • the two-part mold is with a provided with porous lining, the favorable properties regarding the demolding of the finished moldings.
  • In Connection with a special addition of the clay material were able to produce very low-texture and therefore very durable moldings be manufactured with finely worked out profiling; however, the moldings are still very much after demolding soft and must therefore be handled with special care become. Deformations are almost inevitable. The moldings cannot be processed immediately.
  • the present invention is based on the object Process for manufacturing from outside and / or inside profiled, partially tubular compacts under Use of a two-part mold with a porous one Specify lining in which the compacts in a very stiff condition can be easily removed from the mold and still have minimal textures.
  • Pressing the material in the mold using a rubber bladder enables even pressurization even at intricately shaped and profiled compacts. Here Any air residues escape first, then the Humidity. At the end of the pressing process, the rigid one can be removed Demold the compact easily.
  • the rubber bladder with a gas e.g. B. Compressed air, pressurized.
  • a gas e.g. B. Compressed air
  • the use of a compressible gas compared to using a Incompressible liquid has the advantage that the pressure subsides only slightly when the compact as a result of Escaping air and water will disappear without constantly must be re-pressed.
  • the object of the present invention is also a Specify device with the help of the invention Procedure can be carried out.
  • the solution is one Device with the features of claim 4.
  • the pressing pressure is according to the invention using a Rubber bubble generated in the left by the mouthpiece Cavity is insertable and can be placed under high pressure.
  • the rubber bladder preferably has easier handling a high pressure clutch, a shut-off valve and in particular a valve with a sealing cone.
  • the shut-off valve makes it possible, after filling the compressed gas into the Rubber bubble to disconnect the source of compressed gas to the next To put rubber bladder under pressure.
  • a preferred embodiment of the invention provides that the mold a circular cylindrical, possibly conical Has shape and of a tubular, if necessary conical sleeve is held together. This makes it easier required relative rotation between the mold and Mouthpiece. Also, the ability to take high pressures very good.
  • the housing of the two mold halves 11, 12 consists of Steel. There is a sealing cone 13 in the front end intended.
  • the interior has a porous lining 14 equipped, the inner surface of a negative of corresponds to manufactured compact.
  • FIG. 2 shows a die 20 of an extrusion press, for example an extruder press for clay.
  • the material is through the mouthpiece 20 according to arrow 9 pushed.
  • the mouthpiece 20 has a Filling tube 21, which is multiple over length and circumference Has openings 22.
  • the tip 24 of the filling tube 21 is open if in the form as in the embodiment 11, 12 to produce compact a closed lid should own.
  • a compressed air nozzle 25 in the tip of the mouthpiece 20 facilitates moving the mouthpiece 20 out of the Mold 11, 12 or the compact.
  • Lighter wipers 26 the separation of the remaining in the filling tube (21) Strand of material.
  • the mouthpiece 20 has a sealing cone 23 which with the Sealing cone 13 of the mold 11, 12 corresponds. At retracted mouthpiece 20, the mold 11, 12 is tight closed so that no material escapes.
  • Fig. 3 shows a perspective view of a rubber bladder 30, attached to a fitting 31, with a High pressure clutch 34 and a shut-off valve 32 equipped is.
  • the valve 31 also has a sealing cone (not visible), which with the sealing cone 13 of the mold 11, 12 corresponds.
  • the rubber bladder 30 can after Pull out the mouthpiece 20 into the filled with material Mold 11, 12 are introduced. Then she is with Inflated with the help of compressed air, causing the compact under a high, uniform pressure is set on all sides. As a result, air components and especially that leave Turning on the clay water used the die 11, 12 through through the porous liner 14.
  • the rubber bladder 30 may have zones 35, 36 of reduced and / or increased extensibility to be equipped To achieve internal profiling of the compacts.
  • Fig. 4 shows a top view of a simple, step-by-step endless revolving carousel-like work platform 2, with whose help carried out the method according to the invention can be.
  • the mouthpiece 20 At the first position I is the mouthpiece 20 with the core tube 21 and the sealing cone 23 to recognize that for filling the closed mold 10, 11, 12 into this retracted and retracted after filling becomes.
  • the shutoff valve 32 is in the third position closed, the high pressure hose 37 from the High pressure clutch 34 removed.
  • the compact inside Die 11, 12 is vented by the high pressure, drained and stiffened.
  • the length of time, as before mentioned in reverse proportion to the amount of Pressing pressure is ensured by the fact that the pressing pressure created over several steps of the work platform 2 remains.
  • the rubber bladder 30 removed, the mold 10, 11, 12 opened and the compact 1 demolded. He can with a suitable removal device 3 a drying car or fed directly to the kiln become.
  • the mold halves 11, 12 are closed and in the first working position I again with material filled.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
EP95111648A 1994-08-04 1995-07-25 Verfahren und Vorrichtung zum Herstellen von profilierten, rohrförmigen Presslingen aus plastischem Material wie Ton und dergleichen Expired - Lifetime EP0695611B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4427588 1994-08-04
DE4427588A DE4427588C1 (de) 1994-08-04 1994-08-04 Verfahren und Vorrichtung zum Herstellen von profilierten, rohrförmigen Formlingen aus plastischem Material wie Ton und dergleichen

Publications (3)

Publication Number Publication Date
EP0695611A2 EP0695611A2 (de) 1996-02-07
EP0695611A3 EP0695611A3 (de) 1997-11-19
EP0695611B1 true EP0695611B1 (de) 2000-03-22

Family

ID=6524909

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95111648A Expired - Lifetime EP0695611B1 (de) 1994-08-04 1995-07-25 Verfahren und Vorrichtung zum Herstellen von profilierten, rohrförmigen Presslingen aus plastischem Material wie Ton und dergleichen

Country Status (4)

Country Link
EP (1) EP0695611B1 (es)
AT (1) ATE190898T1 (es)
DE (2) DE4427588C1 (es)
ES (1) ES2144547T3 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005007909A1 (de) * 2005-02-08 2006-08-10 Rennebeck, Klaus, Dr. Vorrichtung zur Herstellung von Formteilen aus Keramik

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004016609B3 (de) * 2004-04-03 2005-03-03 Knoch, Kern & Co. Zuführorgan und zugehörige Vorrichtung
CN112895126B (zh) * 2021-01-16 2022-11-22 韶关挖掘机制造厂有限公司 一种减速电机直驱的单卧轴搅拌主机
CN115139392B (zh) * 2022-07-05 2023-12-08 江西科技学院 一种转盘式的透水发光混凝土砖的制备装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL44908C (es) * 1900-01-01
FR491298A (fr) * 1918-08-19 1919-05-28 Emile Bouvier Procédé de fabrication, en matériaux de construction, de poutres et dalles moulées munies de canaux longitudinaux
US1858956A (en) * 1925-11-05 1932-05-17 Hepperle Heinrich Molding machine
CH142388A (de) * 1926-07-02 1930-09-30 Ohio Brass Co Verfahren und Einrichtung zur Herstellung hohler, keramischer Gegenstände.
DK113762B (da) * 1964-02-26 1969-04-21 G Marchioli Apparat til fremstilling af rørbøjninger med rette endedele af hvilke den ene er udformet som en muffe, og med en krum mellemliggende del.
DE1584401A1 (de) * 1966-04-13 1970-01-22 Eckold Gerd Juergen Presse zum Herstellen rohrartiger Rohlinge oder von Hohlblocksteinen,Wandelementen od. dgl. aus Kalk,Zement oder anders gebundenen Grundstoffen
NL7001893A (es) * 1970-02-10 1971-08-12
CH588340A5 (es) * 1975-01-09 1977-05-31 Tarida Anstalt & Cabrera Ansta
DE3100009A1 (de) * 1981-01-02 1982-07-22 Rieter-Werke Dipl.-Ing. Walter Händle GmbH, 7750 Konstanz Vorrichtung und verfahren zum herstellen von rohren aus steinzeug
DE3444322A1 (de) * 1984-12-05 1986-06-05 Marin 6729 Hatzenbühl Schnorr Verfahren und vorrichtung zum pressen von profilierten, rohrfoermigen koerpern aus plastischem material
DE3903640A1 (de) * 1988-02-09 1989-08-17 N Proizv Ob Energostroiprom Verfahren und anlage zur herstellung von hohlkoerpern aus baustoffgemischen, vorzugsweise betongemischen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005007909A1 (de) * 2005-02-08 2006-08-10 Rennebeck, Klaus, Dr. Vorrichtung zur Herstellung von Formteilen aus Keramik

Also Published As

Publication number Publication date
ES2144547T3 (es) 2000-06-16
EP0695611A2 (de) 1996-02-07
DE4427588C1 (de) 1995-09-07
EP0695611A3 (de) 1997-11-19
DE59508031D1 (de) 2000-04-27
ATE190898T1 (de) 2000-04-15

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