DE212738C - - Google Patents
Info
- Publication number
- DE212738C DE212738C DENDAT212738D DE212738DA DE212738C DE 212738 C DE212738 C DE 212738C DE NDAT212738 D DENDAT212738 D DE NDAT212738D DE 212738D A DE212738D A DE 212738DA DE 212738 C DE212738 C DE 212738C
- Authority
- DE
- Germany
- Prior art keywords
- clay
- webs
- strand
- mold
- pressing
- 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.)
- Active
Links
- 239000004927 clay Substances 0.000 claims description 10
- 229910052570 clay Inorganic materials 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 6
- 230000000875 corresponding Effects 0.000 claims 1
- 230000003014 reinforcing Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 241000687904 Soa Species 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating Effects 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/44—Producing shaped prefabricated articles from the material by forcing cores into filled moulds for forming hollow articles
-
- 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
- B28B11/003—Apparatus or processes for treating or working the shaped or preshaped articles the shaping of preshaped articles, e.g. by bending
-
- 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
- B28B7/0097—Press moulds; Press-mould and press-ram assemblies
-
- 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
- B28B7/40—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material
- B28B7/44—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material for treating with gases or degassing, e.g. for de-aerating
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
KLASSE SOa. GRUPPECLASS SOa. GROUP
ERNST PERGANDE in PERLEBERG.ERNST PERGANDE in PERLEBERG.
Gegenstand der Erfindung ist ein Verfahren zum Pressen von gemusterten Tonfriesen u. dgl.
mit Versteifungsstegen aus einem gegebenen-' falls vorgeformten Tonstrange.
Bisher wurden glatte Friese mit Tragstegen entweder ganz von Hand hergestellt oder
aber es wurde auf der Strangpresse ein Profilstrang gepreßt, aus welchem dann innen von
Hand mehrere rechteckige Stücke herausgeschnitten wurden, so daß schmale Stege stehen
blieben. Die Herstellung gemusterter Friese u. dgl. war jedoch so unmöglich. Wollte man
solche herstellen, so mußte man bei der Handformerei bleiben, die darin besteht, daß man
ein Tonblatt in einer Gipsform ausformt und die Tragstege besonders einsetzt.The invention relates to a method for pressing patterned clay friezes and the like with stiffening webs from an optionally preformed clay strand.
So far, smooth friezes with supporting webs were either made entirely by hand or a profile strand was pressed on the extruder, from which several rectangular pieces were then cut out internally by hand, so that narrow webs remained. The production of patterned friezes and the like, however, was so impossible. If you wanted to make such, you had to stick to the hand molding, which consists of molding a clay sheet in a plaster mold and using the supporting webs in particular.
Mittels des neuen Verfahrens wird der gemusterte Hohlfries samt den Stegen durch einen Preßdruck erzeugt.Using the new process, the patterned hollow frieze including the webs is through generates a pressing pressure.
Zu diesem Zwecke wird der Tonstrang durch ein entsprechend gestaltetes Strangpressenmundstück etwas vorgeformt. Der vorgeformte Strang wird dann in die Preßform eingelegt und mittels eines Preßstempels in sie eingepreßt. Der Preßstempel ist so ausgespart, daß sich in seinen Aussparungen beim Eindringen in den Strang gleichzeitig die Tragstege bilden.For this purpose, the clay strand is passed through an appropriately designed extrusion die somewhat preformed. The preformed strand is then placed in the die and pressed into it by means of a press ram. The ram is so recessed, that in its recesses when penetrating the strand at the same time the support webs form.
In der Zeichnung ist der Erfindungsgegenstand in einem Ausführungsbeispiel dargestellt. In the drawing, the subject matter of the invention is shown in an exemplary embodiment.
Fig. ι und 2 zeigen den vorgeformten Tonstrang a.
In Fig.Fig. 1 and 2 show the preformed clay strand a.
In Fig.
3 ist die Preßform. b sowie der Preßstempel c im Schnitt dargestellt.3 is the mold. b and the ram c shown in section.
Fig. 4 zeigt einen Querschnitt durch die Preßform, den Preßling und Preßstempel während des Preßvorganges.Fig. 4 shows a cross section through the mold, the compact and ram during of the pressing process.
In Fig. 5 ist der Preßstempel in Seitenansicht und inIn Fig. 5 the ram is in side view and in
Fig. 6 in einem Querschnitt durch die ausgesparten Stellen dargestellt.Fig. 6 is shown in a cross section through the recessed areas.
Fig. 7 und 8 zeigen den fertigen Fries nach Öffnung der Form; g sind die Stege. Die Preßform b kann aus beliebig vielen lösbaren Teilen zusammengesetzt sein.Figures 7 and 8 show the finished frieze after the mold has been opened; g are the webs. The mold b can be composed of any number of detachable parts.
Der .vorgeformte Tonstrang α wird in die Form b eingelegt, die er, wie die punktierte Linie in Fig. 3 zeigt, nicht ganz ausfüllt.The preformed clay strand α is placed in the form b , which it does not completely fill, as the dotted line in FIG. 3 shows.
Der Stempel weist oben einen Flansch d auf, der mit der oberen Innenkante der Preßform δ annähernd absehließt. An mehreren Stellen ist der Stempel mit von unten nach oben verlaufenden Aussparungen e versehen. Wird er in die Form b hineingedrückt, so preßt er das Preßgut in die Form; dabei tritt der Ton in die Aussparungen e ein und bildet an diesen Stellen die zur Versteifung des Hohlstranges dienenden "Stege.The punch has a flange d at the top, which is approximately closed with the upper inner edge of the compression mold δ. The stamp is provided with recesses e running from bottom to top at several points. If it is pressed into the form b , it presses the material to be pressed into the form; in the process, the clay enters the recesses e and forms the "webs" which serve to stiffen the hollow strand at these points.
Um während des Preßvorgangs der Luft Austritt aus der Form zu verschaffen, können in den Aussparungen β in bekannter Weise Löcher/ angebracht sein.In order to allow the air to escape from the mold during the pressing process, holes / can be made in the recesses β in a known manner.
Bei einfacheren Friesformen kann auch die Vorformung Wegfallen und die Tonmasse gleich in die Fertigform eingebracht werden.In the case of simpler frieze shapes, the preforming can also be omitted and the clay mass can be the same be introduced into the finished form.
Ebenso wie hier bei Friesen kann das neue Verfahren auch zur Herstellung von Reliefplatten mit Verstärkungsstegen verwendet werden. As here at Friesen, the new process can also be used to manufacture relief panels can be used with reinforcement bars.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE212738C true DE212738C (en) |
Family
ID=474458
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT212738D Active DE212738C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE212738C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2729601A1 (en) * | 1995-01-25 | 1996-07-26 | Ducrot Ceramiques Sa | TERRACOTTA PARPAING AND PROCESS FOR OBTAINING |
-
0
- DE DENDAT212738D patent/DE212738C/de active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2729601A1 (en) * | 1995-01-25 | 1996-07-26 | Ducrot Ceramiques Sa | TERRACOTTA PARPAING AND PROCESS FOR OBTAINING |
EP0726369A1 (en) * | 1995-01-25 | 1996-08-14 | Ceramiques Ducrot S.A. | Moulded building block from clay and process for its manufacture |
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