EP0467074A2 - Dispositif et procédé pour la fabrication de briques - Google Patents

Dispositif et procédé pour la fabrication de briques Download PDF

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Publication number
EP0467074A2
EP0467074A2 EP91109802A EP91109802A EP0467074A2 EP 0467074 A2 EP0467074 A2 EP 0467074A2 EP 91109802 A EP91109802 A EP 91109802A EP 91109802 A EP91109802 A EP 91109802A EP 0467074 A2 EP0467074 A2 EP 0467074A2
Authority
EP
European Patent Office
Prior art keywords
knife
opening
mouthpiece
extruded
recess
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Withdrawn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
EP91109802A
Other languages
German (de)
English (en)
Other versions
EP0467074A3 (en
Inventor
Reiner Weise
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.)
UNIPOR-ZIEGEL MARKETING GmbH
Original Assignee
UNIPOR-ZIEGEL MARKETING 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 UNIPOR-ZIEGEL MARKETING GmbH filed Critical UNIPOR-ZIEGEL MARKETING GmbH
Priority to DE9116751U priority Critical patent/DE9116751U1/de
Publication of EP0467074A2 publication Critical patent/EP0467074A2/fr
Publication of EP0467074A3 publication Critical patent/EP0467074A3/de
Withdrawn legal-status Critical Current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
    • B28B3/20—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
    • 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
    • B28B3/2681—Adjustable dies, e.g. for altering the shape of the product

Definitions

  • the invention relates to a device for producing a brick according to the preamble of claim 1 and to a method for producing a brick according to the preamble of claim 8.
  • a grip aid in the form of a recess on at least one side surface of the brick. If the brick is produced by means of a pressing or casting process, the depression can be formed in a simple manner by designing the pressing or casting mold accordingly.
  • the production of bricks by means of an extrusion process has proven to be economically advantageous over a pressing or casting process.
  • problems arise in the formation of discontinuous depressions in the continuous extrusion body.
  • DE-GM 87 00 438 it has been proposed to press a depression into the plastically deformable extruded body after it has been extruded by means of one or more plungers with material displacement.
  • a special printing device with a frame construction is provided which, in addition to a relatively high construction effort and thus a large installation space, also requires complex control.
  • the material displacement in the structure of the perforated brick leads to inhomogeneities and the webs of the perforated pattern of the brick can be disturbed as a result of the material displacement, which can lead to impairments in the function of the perforated brick.
  • the invention has for its object to provide a device and a method for producing a brick, in particular a perforated brick, with which the recess serving as a gripping aid can be formed in a simple and reliable manner.
  • the concept used hitherto of first forming a strand body with a uniform contour and then introducing a depression into it is abandoned.
  • the strand body is extruded to form the depression with a temporarily changed contour, so that the depressions are formed in the strand body during the shaping thereof.
  • the cross section of the opening of the mouthpiece through which the extruded body is extruded can be made variable. It is thus achieved according to the invention that no material gets into the region of the depression during the production of the extruded body, whereby a removal of material or a displacement of material is not necessary for the formation of the depression. A disturbance in the structure of the webs in perforated bricks is also reliably prevented in this way.
  • the recesses serving as a gripping aid can be formed in the brick with only a small construction effort, without loss of material and with avoidance of inhomogeneities.
  • a mouthpiece 10 of an extrusion device which has a substantially rectangular opening 17.
  • an essentially continuously formed extruded body 18 is extruded through the opening 17 of the mouthpiece 10, the cross-section or contour of which corresponds to the cross-section of the opening 17 of the mouthpiece 10.
  • the cross-section of the opening 17 of the mouthpiece 10 is not limited to a rectangular shape, but other cross-sectional shapes, for example a trapezoidal shape or a polygonal shape on several sides, can also be used.
  • the extrusion direction A of the strand body 18 is shown in FIG. 2 and in FIG. 1 runs perpendicular to the plane of the drawing.
  • two hydraulic or pneumatic cylinders 12 or correspondingly acting electromagnets, each having a piston 14, are arranged on or near the mouthpiece 10.
  • a knife-like diaphragm 16 is fastened, the cutting edge 16 a of which faces the opening 17 of the mouthpiece 10.
  • two cylinders 12 and two knife-like diaphragms 16 are provided, but only one knife-like diaphragm 16 with the corresponding cylinder 12 can be provided, for example if the training of only one grip aid is desired.
  • one or more knife-like diaphragms 16 can also be provided on one side or on several sides of the opening 17 of the mouthpiece 10. If necessary, a plurality of knife-like diaphragms 16 can also be coupled to only a single cylinder 12.
  • the knife-like panels 16 are arranged on two opposite or diametrically opposite side sections of the opening 17 of the mouthpiece 10, so that a gripping aid can be formed on the opposite side surfaces of the strand body 18 with the device shown .
  • the cylinders 12 are connected by means of a control device, not shown, so that the piston 14 together with the knife-like diaphragm 16 can be moved relative to the cylinder 12. In this way, the knife-like diaphragms 16 can be continuously adjusted relative to the opening 17 of the mouthpiece 10.
  • the knife-like panels 16 are formed from plate-like components, for example metal plates, the plate plane of which essentially coincides with the plane in which the strand body 18 emerges from the mouthpiece 10. As can be seen from FIG. 2, the knife-like diaphragms 16 can be moved essentially perpendicular to the extrusion direction A.
  • the knife-like panels 16 are arranged in their retracted position in which they do not overlap the opening 17 of the mouthpiece 10. If the strand body 18 is extruded in this state, its cross section and contour coincide with the cross section or the contour of the opening 17 of the mouthpiece 10, i.e. the strand body 18 has a rectangular cross section.
  • the knife-like diaphragms 16 are moved into an extended position by means of the cylinders 12, as is shown in FIGS. 3 and 4.
  • the cutting edges 16a of the knife-like apertures 16 penetrate into the strand body 18 which is already fully formed in the example with perforation and overlap the rectangular opening 17 of the mouthpiece 10, so that the cross section through which the strand body 18 is subsequently extruded is forcibly changed .
  • the cross section and the contour of the strand body 18 can also be changed temporarily.
  • the knife-like panels 16 th regions of the opening 17 of the mouthpiece 10 no material arrives, so that the depressions 20 are formed in the strand body 18.
  • the knife-like diaphragms 16 are withdrawn so that the strand body 18 is subsequently extruded again with the rectangular cross section determined by the opening 17 of the mouthpiece 10.
  • a strand of a desired length is cut to length from the strand body 18 by means of a cutting device, which is synchronized with the aperture movement in order to determine the height of the depression in the finished brick, and is fed to a finishing operation.
  • the depth of penetration of the panel 16 into the material can be chosen to be large enough to achieve a favorable grip depth that the thickness of the outer web is exceeded with perforated bricks and the perforation is exposed in the base of the recess. Since the material is still very plastic when it comes into contact with the screen 16, disruptive burrs or sharp edges which are dangerous to injury are not formed, unlike, for example, when milling after firing.
  • a change in the shape of the recess 20 can also be achieved in a simple manner.
  • only another knife-like diaphragm 16 has to be attached to the corresponding piston 14.
  • the invention can also be used to regulate the running of a strand in the sense of a flow brake, e.g. to produce asymmetrical bricks for vaults or the like.
  • a suitably shaped brake projection arranged in the extrusion direction A at a suitable point can be used, as and where it is already known in a fixed arrangement.
  • the one-sided braking of the line can be selectively switched on and off by pulling back and pushing the brake projection forward.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
EP19910109802 1990-07-19 1991-06-14 Apparatus and process for making bricks Withdrawn EP0467074A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE9116751U DE9116751U1 (de) 1990-07-19 1991-06-14 Vorrichtung zum Herstellen eines Ziegels

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4023007 1990-07-19
DE19904023007 DE4023007A1 (de) 1990-07-19 1990-07-19 Vorrichtung und verfahren zum herstellen eines ziegels

Publications (2)

Publication Number Publication Date
EP0467074A2 true EP0467074A2 (fr) 1992-01-22
EP0467074A3 EP0467074A3 (en) 1992-07-29

Family

ID=6410616

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910109802 Withdrawn EP0467074A3 (en) 1990-07-19 1991-06-14 Apparatus and process for making bricks

Country Status (2)

Country Link
EP (1) EP0467074A3 (fr)
DE (1) DE4023007A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999036237A1 (fr) * 1998-01-16 1999-07-22 Talleres Morte E Hijos, S.L. Moule perfectionne pour la fabrication de briques
GB2470273A (en) * 2009-05-12 2010-11-17 Lingl Anlagenbau A device with a die relief for manufacturing a slab from extrudable material

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4333958C2 (de) * 1993-10-05 1996-02-15 Rieter Werke Haendle Vorrichtung zum Formen von Batzen aus einem formbaren Material, wie Ton
DE19725265C2 (de) * 1997-06-13 2000-06-08 Helmut Knoblich Ein- oder mehrteiliges Strangpreß-Mundstück

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR681749A (fr) * 1929-09-13 1930-05-19 Appareil permettant la formation du crochet en même temps que le corps des tuiles plates
AU474878B2 (en) * 1972-11-13 1975-05-15 P. G. H. Industries Limited Improved apparatus for extruding materials
FR2255792A5 (en) * 1973-12-19 1975-07-18 Pintat Armand Hollow extruded baked clay building blocks - have square section ends with inwardly projecting fingers
DE8700438U1 (fr) * 1987-01-10 1987-06-19 Erlus Baustoffwerke Ag, 8301 Neufahrn, De

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE809525C (de) * 1950-03-09 1951-07-30 Jakob Plein Wagner Soehne Stei Mundstueck fuer Strangpressen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR681749A (fr) * 1929-09-13 1930-05-19 Appareil permettant la formation du crochet en même temps que le corps des tuiles plates
AU474878B2 (en) * 1972-11-13 1975-05-15 P. G. H. Industries Limited Improved apparatus for extruding materials
FR2255792A5 (en) * 1973-12-19 1975-07-18 Pintat Armand Hollow extruded baked clay building blocks - have square section ends with inwardly projecting fingers
DE8700438U1 (fr) * 1987-01-10 1987-06-19 Erlus Baustoffwerke Ag, 8301 Neufahrn, De

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999036237A1 (fr) * 1998-01-16 1999-07-22 Talleres Morte E Hijos, S.L. Moule perfectionne pour la fabrication de briques
GB2470273A (en) * 2009-05-12 2010-11-17 Lingl Anlagenbau A device with a die relief for manufacturing a slab from extrudable material

Also Published As

Publication number Publication date
DE4023007A1 (de) 1992-01-23
EP0467074A3 (en) 1992-07-29

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