DE200411C - - Google Patents
Info
- Publication number
- DE200411C DE200411C DENDAT200411D DE200411DA DE200411C DE 200411 C DE200411 C DE 200411C DE NDAT200411 D DENDAT200411 D DE NDAT200411D DE 200411D A DE200411D A DE 200411DA DE 200411 C DE200411 C DE 200411C
- Authority
- DE
- Germany
- Prior art keywords
- core
- perforated
- hole
- core according
- walls
- 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
- 238000001125 extrusion Methods 0.000 claims description 2
- 239000011464 hollow brick Substances 0.000 claims description 2
- 239000010985 leather Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000003245 coal Substances 0.000 description 4
- 239000011449 brick Substances 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 239000004927 clay Substances 0.000 description 2
- 244000059549 Borneo rubber Species 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012858 resilient material Substances 0.000 description 1
- 239000000725 suspension Substances 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Description
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
KLASSE 80«. GRUPPECLASS 80 «. GROUP
Bei den auf der Strangpresse hergestellten Hohlziegeln und namentlich bei solchen, welche aus steinigem Preßgut hergestellt werden oder denen zur Erzielung von Porosität Kohlengrus u. dgl. zugesetzt wird, findet man oft, daß Steinchen, Kohlen- oder Holzstückchen u. dgl. sich in der Austrittsöffnung des Mundstückes festsetzen und den Austritt des vollen Tonstranges verhindern. InfolgedessenWith the hollow bricks produced on the extrusion press and especially with those which are made from stony pressed material or those to achieve porosity Coal grit and the like is added, it is often found that pebbles, coal or wood pieces and the like set themselves in the outlet opening of the mouthpiece and the outlet of the Prevent full clay strand. Consequently
ίο werden die Wandungen des Ziegels in der ganzen Länge aufgerissen und weisen breite Rinnen und Fugen auf, und die Kanäle an den Enden der Ziegel zeigen ausgebrochene Kanten. Die Ziegel erhalten hierdurch nicht nur ein unschönes Aussehen, sondern verlieren auch an Festigkeit und Widerstandsfähigkeit, namentlich wenn sie mit dünnen Wandungen und Stegen hergestellt werden. Außerdem wird die Leistungsfähigkeit der Presse wesentlich ungünstig dadurch beeinflußt, daß die Presse bei der Mundstückverstopfung langsamer treibt, daß der Ton öfter ausgestochen und das Mundstück selbst öfter gereinigt werden muß. Die Rinnen, Fugen und Strangrisse, welche also durch die in dem Ton befindlichen Körper, wie z. B. durch kleine Steine, Kohlen- oder Holzstückchen u. dgl. entstehen, würden nicht auftreten, wenn der volle Lochkern nachgeben könnte, da alsdann die kleinen Steinchen bei der Fortbewegung des Stranges nicht festgeklemmt, sondern mitgenommen würden und die erwähnten Rinnen und Risse nicht mehr erzeugen könnten.ίο the walls of the brick in the torn open the entire length and have wide gutters and joints, and the channels the ends of the bricks show broken edges. This does not preserve the bricks only an ugly appearance, but also lose strength and resistance, especially if they are made with thin walls and webs. In addition, the performance of the Press significantly unfavorably influenced by the fact that the press when the mouthpiece is blocked Drives more slowly, that the sound has to be cut out more often and the mouthpiece itself has to be cleaned more often. The gutters Joints and strand cracks, which are thus caused by the body in the clay, such. B. caused by small stones, pieces of coal or wood, etc. would not occur if the full hole core gave way could, because then the small stones are not clamped in place as the strand moves, but taken with it and would no longer be able to produce the gullies and cracks mentioned.
Demgemäß finden gemäß der Erfindung zur Herstellung der Kanäle nicht starre Lochkerne Verwendung, sondern Lochkerne, deren Wandungen federn, so daß die Wandung des Kernes befähigt ist, nachzugeben, wenn sich Steine, Kohlen- oder Holzstückchen zwisehen Kern- und Kanalwandung befinden sollten. Die Federung kann in verschiedener Weise erfolgen, so z. B. dadurch, daß man die übereinandergreifenden Schuppenbleche a aus federndem Material macht (s. Fig. 1), oder indem man in das Innere des Kernes eine zu einem Ringe gebogene Schraubenfeder b oder Blattfedern c o. dgl. einlegt (s. Fig. 2 und 3). Statt der Schraubenfeder b kann auch eine Platte d aus elastischem Stoff, z. B. Gummi, Filz, Leder o. dgl., Verwendung finden (s. Fig. 4). Die Erfindung würde auch keine Abänderung erleiden, wenn der ganze Kern aus einem elastischen Stoff hergestellt werden würde. Dabei kann natürlieh die Querschnittsform des Kernes ganz den Verhältnissen angepaßt werden; sie kann kreisförmig, elliptisch, quadratisch, rechteckig oder beliebig anders gestaltet sein.Accordingly, according to the invention, not rigid perforated cores are used for the production of the channels, but perforated cores whose walls are springy so that the wall of the core is able to yield if there are stones, pieces of coal or wood between the core and the channel wall. The suspension can be done in various ways, such. B. by making the overlapping scale sheets a of resilient material (see Fig. 1), or by inserting a coil spring b bent into a ring or leaf springs c or the like into the interior of the core (see Fig. 2 and 3). Instead of the coil spring b , a plate d made of elastic material, for. B. rubber, felt, leather o. The like., Use (see. Fig. 4). The invention would not be modified if the entire core were made from an elastic fabric. The cross-sectional shape of the core can of course be completely adapted to the circumstances; it can be circular, elliptical, square, rectangular or any other shape.
Die Ausbauchung der Lochkerne kann gemäß der Erfindung in einer Ebene verhindert werden, wie es z. B. bei elliptischen Lochkernen der Fall ist, und zwar dadurch, daß im Innern des Lochkernes an der Schraubenfeder oder der elastischen Blattfeder Drähte, Kettchen o. dgl. zum Zusammenhalten der betreffenden Kernwandungen befestigt sind, wie es in Fig. 5 dargestellt ist.According to the invention, the bulging of the perforated cores can be prevented in one plane become, as it z. B. is the case with elliptical perforated cores, namely by that inside the hole core on the helical spring or the elastic leaf spring Wires, chains or the like are attached to hold the relevant core walls together, as shown in FIG.
6565
Claims (5)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE200411C true DE200411C (en) |
Family
ID=463045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT200411D Active DE200411C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE200411C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE923297C (en) * | 1952-03-20 | 1955-02-10 | Siemens Ag | Extrusion press for the production of conical bodies from plastic seeds, e.g. B. ceramic masses |
-
0
- DE DENDAT200411D patent/DE200411C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE923297C (en) * | 1952-03-20 | 1955-02-10 | Siemens Ag | Extrusion press for the production of conical bodies from plastic seeds, e.g. B. ceramic masses |
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