EP2364831A2 - Procédé de fabrication de pierres à paver, dispositif de moulage et dispositif d'extrusion pour la fabrication de celles-ci et pierres à paver ainsi fabriquées - Google Patents

Procédé de fabrication de pierres à paver, dispositif de moulage et dispositif d'extrusion pour la fabrication de celles-ci et pierres à paver ainsi fabriquées Download PDF

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Publication number
EP2364831A2
EP2364831A2 EP11001821A EP11001821A EP2364831A2 EP 2364831 A2 EP2364831 A2 EP 2364831A2 EP 11001821 A EP11001821 A EP 11001821A EP 11001821 A EP11001821 A EP 11001821A EP 2364831 A2 EP2364831 A2 EP 2364831A2
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EP
European Patent Office
Prior art keywords
mold
projection
paving stones
paving
mouthpiece
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Withdrawn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
EP11001821A
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German (de)
English (en)
Other versions
EP2364831A3 (fr
Inventor
Detlef Schröder
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 EP2364831A2 publication Critical patent/EP2364831A2/fr
Publication of EP2364831A3 publication Critical patent/EP2364831A3/fr
Withdrawn legal-status Critical Current

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    • 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
    • B28B7/0061—Moulds, cores or mandrels specially adapted for mechanically working moulding surfaces during moulding or demoulding, e.g. smoothing by means of mould walls driven during moulding or of parts acting during demoulding
    • 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
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/08—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads
    • 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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C5/00—Pavings made of prefabricated single units
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C5/00—Pavings made of prefabricated single units
    • E01C5/003—Pavings made of prefabricated single units characterised by material or composition used for beds or joints; characterised by the way of laying
    • 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
    • B28B7/24—Unitary mould structures with a plurality of moulding spaces, e.g. moulds divided into multiple moulding spaces by integratable partitions, mould part structures providing a number of moulding spaces in mutual co-operation

Definitions

  • the present invention relates to a method for the production of paving stones, wherein the hardenable paving stone material is filled into the mold cavities of a top and bottom open mold apparatus and compacted therein and in which the molding apparatus is pulled up from the paving stones produced.
  • Paving stones are made of concrete and other plastic materials, such as clay.
  • the curable material is filled in the plastic state from above into the mold cavities of the molding apparatus. After appropriate compression of the material and a smoothing of the top, the molding apparatus is pulled upwards. The freshly formed paving stones on a production board can then harden.
  • joints filled with unbound material are emptied by sweeping machines and, moreover, in particular in driving lanes of motor vehicle tires by suction during rolling over of the joints over time. This leads to the above-indicated plaster damage.
  • the present invention has for its object to provide a method for the production of paving stones, which can be produced in a particularly simple and inexpensive way paving stones, which oppose a particularly high resistance in the installed state removal of the joint material.
  • the present invention is based on the basic idea that smooth side surfaces of laid paving stones provide the grout material with little or no support, so that it can be removed relatively easily from the joints, in particular by appropriate suction effects (sweepers, motor vehicle tires, etc.).
  • a roughening of the side surfaces of the paving stones is performed according to the invention. This is done in the above-reproduced first embodiment of the method according to the invention characterized in that the side surfaces of the paving stones are torn open by the protrusions provided on the molding device during removal of the molding device and thereby greatly roughened. This has the result that joint materials, especially in broken form, get caught with the rough paving stone sidewalls formed, so that the suction processes described above are resisted and the emptying of the joints is prevented or made more difficult.
  • the projection When removing the molding device, the projection eats into the paving stone material of the side surface. Since the paving stone material has an inhomogeneous structure (Aggregates of different grain size, etc.) and / or already at least slightly cured when removing the molding device, by the tearing of the paving stone side surface no smooth, but an irregularly shaped R dichfurche (with serrated edges, different depths, etc.) is generated, which for the desired Roughness provides.
  • a plurality of protrusions projecting into the mold cavity are present on a side surface of a mold cavity, so that a plurality of tear grooves are formed side by side on the side surface of the paving stone, which together provide a rough appearance of the surface of the sidewall of the paving stone.
  • the at least one projection is provided only in the lower region of the side surface of a mold cavity.
  • preferably only a small projection is provided with a small height at the lower end of a side surface of a mold cavity.
  • the invention also covers such embodiments in which the projection has a longer dimension. It is essential that the inventive principle of "tearing" the paving stone side surface is realized.
  • a molding apparatus is used in which the at least one projection directly adjoins the mold of the molding apparatus is arranged, in particular at the bottom of the same.
  • a molding apparatus is used in which the at least one projection is arranged on a plate provided below the mold. This plate may for example be bolted to the underside of the mold.
  • This embodiment has the advantage that in this case also existing molding devices can be retrofitted or retrofitted.
  • conventionally formed shapes for example with smooth side walls of the mold cavities, can be used and retrofitted with the plate having the protrusions.
  • the additionally provided plate has a corresponding mold cavity as the shape arranged above it, which differs from the mold cavity arranged above the projections provided.
  • Another embodiment of the invention relates to a method for the production of paving stones, in which paving stone material is filled into the cavity of an extrusion device and pressed out in the form of a strand from the mouthpiece of the extrusion device.
  • paving stone material is filled into the cavity of an extrusion device and pressed out in the form of a strand from the mouthpiece of the extrusion device.
  • this process variant for the production of paving stones of the extruded strand is cut after leaving the mouthpiece in individual paving stones.
  • Such a method is used, for example, when paving stones are made from clay materials.
  • this method is characterized in that an extrusion device is used, at or before the mouthpiece at least one in the mouthpiece cavity or the extrusion molding protruding projection is arranged, and that the extrusion device is actuated such that the projection HF in the strand material and generates in the side surface of an irregularly shaped R contemplatfurche.
  • At least one side surface of the strand produced (and thus the paving stones produced) is roughened by providing at least one tear furrow.
  • a plurality of tear furrows are also produced here on one side surface, so that the overall result is a side surface with a roughened surface.
  • This method is therefore based on the same objective as the method described above. It should not be produced or molded here smooth groove, but an irregularly shaped R contemplatfurche be generated.
  • the at least one projection is arranged in front of the mouthpiece, it is clear that the smooth strand emerging from the mouthpiece is torn open by the following projection.
  • the projection is arranged on the mouthpiece, this is expediently provided at the outlet of the mouthpiece, so that here at least one "tearing" comparable molding process takes place, which ultimately leads to the desired irregularly shaped furrow, especially in the Use of aggregates with different grain sizes and an already slightly solidified material.
  • the invention should also cover this variant of the method.
  • the shape of the at least one projection which creates the tear furrow it is preferably triangular in shape and protrudes with the tip into the mold cavity, mouthpiece cavity or extrusion line.
  • the projection may therefore have a wedge shape.
  • the present invention also relates to a molding apparatus for making paving stones having a plurality of mold cavities open at the top and bottom.
  • the molding device according to the invention is characterized in that it has at least one side surface of a mold cavity only in the lower region of the same at least one projecting into the mold cavity projection.
  • a plurality of adjacent projections is provided on at least one side surface.
  • the protrusion causes rupture of the paving stone material on the side surface in the form of an irregularly shaped rip furrow extending across the height of the side surface.
  • the at least one projection is preferably triangular or wedge-shaped.
  • the invention relates to an extrusion device for the production of paving stones having a mouthpiece.
  • at least one protrusion projecting into the mouthpiece cavity or the extrusion line is arranged on or in front of the mouthpiece.
  • several projections are conveniently provided side by side.
  • the projection is preferably arranged at the outlet of the mouthpiece, so that here is a corresponding "Tear effect" results.
  • the objective is the same as in the molding apparatus described above, namely the creation of paving stones with roughened side walls.
  • the invention relates to a paving stone, which is characterized in that it has at least one irregularly shaped tear furrow on at least one side surface.
  • the paving stone is preferably made by a process of the type described above and with a molding or extrusion device of the type described above. Conveniently, it has a plurality of adjacently arranged tear furrows on the at least one side surface.
  • the tear furrows are irregularly shaped, i. have irregularly shaped edges and / or are formed differently deep.
  • the tear furrows are arranged adjacent to each other so that they merge into each other, i. alternately recessed and raised areas are arranged on the side surface of the paving stone, so that the overall result is a rough surface.
  • the desired "tearing effect” is achieved or favored, as this results in the jagged boundary lines of the furrows.
  • the corresponding structure of the "furrows” is further achieved in that when tearing the paving stone material is preferably already somewhat solidified, so that also by this irregular shapes are favored.
  • FIG. 1 schematic spatial view of the molding apparatus shown has a rectangular shape 1, which has four mold cavities 2, which are also rectangular.
  • the mold cavities 2 are open both above and below.
  • Form 1 is shown during filling with plastic concrete. Of the Concrete is filled into the mold cavities 2, compacted in this and swept on the top, so that there is a smooth top. During filling, the mold 1 is located on a production board 3, which is in FIG. 1 shown below. After a certain time of curing, the mold 1 is peeled up from the paving stones 4 formed in the mold cavities 2. The paving stones 4 then cure on the production board 3. In the presentation of FIG. 1 the molding apparatus is shown as a conventionally formed molding apparatus.
  • FIG. 2 In the enlarged view of FIG. 2 the interior of a mold cavity 2 is shown in detail.
  • the mold cavity 2 has on its side surfaces on the lower edge of wedge-shaped projections 5, which protrude into the interior of the mold cavity. These projections 5 are arranged at equal intervals on all side surfaces of the mold cavity 2.
  • tear the wedge-shaped projections 5, the side surfaces of the paving stones formed and produce there so-called "ruts furrows", resulting in the paving stones formed from below extend upward parallel to each other on the side surfaces.
  • the corresponding furrows are in FIG. 4 denoted by 6.
  • FIG. 3 illustrated embodiment of a molding apparatus has a mold 10 having only two mold cavities 11.
  • a plate 12 is arranged, which has corresponding mold cavities 14, which However, are provided with inwardly projecting from the side walls inwardly wedge-shaped projections 13.
  • mold 10 is placed on a production board, and the mold cavities 11 are filled with concrete, which is compacted.
  • the wedge-shaped projections 13 produce corresponding tear furrows on the side surfaces of the paving stones formed.
  • the plate 12 may for example be fastened with screws 15 on the underside of the mold 10.
  • FIG. 4 shows in the left figure two nested paving stones 4. Between these is a gap 7, which is filled after laying the paving stones with grout. It can be seen that the left in the figure paving stone 4 is provided on a side surface with an irregularly shaped R contemplatfurche 6.
  • FIG. 4 shows two juxtaposed paving stones 4, whose side surfaces are provided with corresponding R contemplatfurchen 6.
  • the joint 7 is filled with dry joint material 8, which hooked with the rough grout sidewalls formed by the tear furrows and thus can not be easily removed from the joints.
  • FIG. 5 shows the production of paving stones by means of an extrusion device.
  • the mouthpiece 20 of the extrusion device is indicated schematically.
  • the distance from the mouthpiece in front of it is a series of wedge-shaped Protrusions 22 disposed on a suitable support (not shown).
  • These projections 22 extend into the path of emerging from the mouthpiece 20 paving stone strand 21 inside.
  • the wedge-shaped projections 22 tear open the corresponding side surfaces of the cobblestone strand and form tear furrows 23 which run parallel to one another and are of irregular design. After severing the strand into individual paving stones, therefore, also those with rough side surfaces are formed here.
  • clay materials can be used, for example, in the production shown here with the aid of an extrusion press.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
EP11001821.5A 2010-03-10 2011-03-04 Procédé de fabrication de pierres à paver, dispositif de moulage et dispositif d'extrusion pour la fabrication de celles-ci et pierres à paver ainsi fabriquées Withdrawn EP2364831A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201010010837 DE102010010837A1 (de) 2010-03-10 2010-03-10 Verfahren zur Herstellung von Pflastersteinen, Formvorrichtung und Strangpressvorrichtung zur Herstellung derselben und hierdurch hergestellte Pflastersteine

Publications (2)

Publication Number Publication Date
EP2364831A2 true EP2364831A2 (fr) 2011-09-14
EP2364831A3 EP2364831A3 (fr) 2014-03-12

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EP11001821.5A Withdrawn EP2364831A3 (fr) 2010-03-10 2011-03-04 Procédé de fabrication de pierres à paver, dispositif de moulage et dispositif d'extrusion pour la fabrication de celles-ci et pierres à paver ainsi fabriquées

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EP (1) EP2364831A3 (fr)
DE (1) DE102010010837A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112343254A (zh) * 2020-11-09 2021-02-09 河北砼筑建筑科技有限公司 一种带抗剪齿槽群的叠合预制构件及制作方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106853657A (zh) * 2017-02-24 2017-06-16 南通市恒达机械制造有限公司 一种砖坯批量高效成型机

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1204477A (en) * 1915-12-01 1916-11-14 John U Nicholson Process for manufacturing rough-faced brick.
US3940229A (en) * 1974-02-22 1976-02-24 Columbia Machine, Inc. Apparatus for manufacturing rough faced bricks
JP3455620B2 (ja) * 1995-10-23 2003-10-14 株式会社ユニソン 建築用コンクリートブロックの化粧方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112343254A (zh) * 2020-11-09 2021-02-09 河北砼筑建筑科技有限公司 一种带抗剪齿槽群的叠合预制构件及制作方法

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EP2364831A3 (fr) 2014-03-12
DE102010010837A1 (de) 2011-09-15

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