DE258283C - - Google Patents
Info
- Publication number
- DE258283C DE258283C DENDAT258283D DE258283DA DE258283C DE 258283 C DE258283 C DE 258283C DE NDAT258283 D DENDAT258283 D DE NDAT258283D DE 258283D A DE258283D A DE 258283DA DE 258283 C DE258283 C DE 258283C
- Authority
- DE
- Germany
- Prior art keywords
- screw
- press
- parts
- globoid
- 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.)
- Active
Links
- BSYNRYMUTXBXSQ-UHFFFAOYSA-N aspirin Chemical compound CC(=O)OC1=CC=CC=C1C(O)=O BSYNRYMUTXBXSQ-UHFFFAOYSA-N 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims 1
- 238000007906 compression Methods 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/22—Extrusion presses; Dies therefor
- B30B11/24—Extrusion presses; Dies therefor using screws or worms
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Gegenstand der Erfindung ist eine Presse zum Formen plastischer Massen, bei der die
Pressung des Formgutes in bekannter Weise durch eine Globoidschraube erzeugt wird.
Bei den bekannten Globoidschraubenpressen nimmt die Zusammenpressung der Masse in
dem Maße zu, wie sie sich dem nach dem Mundstück der Presse führenden Ende der Schraube nähert. Dies verursacht eine ungleiche
Abnutzung der einzelnen Stellen der Schraube, indem deren Ende sowie der entsprechende
Teil der Presse schon nach kurzer Zeit unbrauchbar werden, während die anderen Teile noch weiter benutzt werden könnten.
The subject of the invention is a press for molding plastic masses, in which the pressing of the molded product is produced in a known manner by a globoid screw.
In the known globoid screw presses, the compression of the mass increases as it approaches the end of the screw leading to the mouthpiece of the press. This causes uneven wear of the individual points of the screw, in that the end and the corresponding part of the press become unusable after a short time, while the other parts can still be used.
Gemäß der Erfindung soll diesem Übelstande dadurch abgeholfen werden, daß die Gänge der Schraube nach dem Mundstück der Presse hin stärker werden, d. h. daß die Schraubengangdicke zunimmt, und daß die Schraube selbst aus mehreren auf der gleichen Achse befestigten Teilen zusammengesetzt wird.According to the invention, this drawback is to be remedied in that the Threads of the screw become stronger towards the mouthpiece of the press, d. H. that the Screw thread thickness increases, and that the screw itself consists of several on the same Axis fastened parts is assembled.
Die Zeichnung veranschaulicht beispielsweiseFor example, the drawing illustrates
eine Ausführungsform des Erfindungsgegenstandes. an embodiment of the subject matter of the invention.
Die Globoidschraube besteht aus den drei Teilen a1, a2, as, die auf dem Ende der Antriebswelle festgekeilt sind. t The globoid screw consists of the three parts a 1 , a 2 , a s , which are keyed onto the end of the drive shaft. t
Die das Mundstück der Presse bildende Düse b besteht in bekannter Weise aus einem selbständigen Teil, der einfach auf das Ende der Presse aufgeschoben wird. The nozzle b forming the mouthpiece of the press consists in a known manner of an independent part which is simply pushed onto the end of the press.
Auf diese Weise wird einmal die Abnutzung der Globoidschraube gleichmäßiger vor sich gehen, und ferner können auch die einzelnen Teile der Globoidschraube sowie die Düse b in dem Maße, wie diese Teile sich abnutzen, leicht und rasch ersetzt werden. Demzufolge wird außer einer Ersparnis an Formteilen auch eine größere Gleichmäßigkeit des Preßvorganges erzielt.In this way, once the globoid screw is worn more evenly, the individual parts of the globoid screw and the nozzle b can also be easily and quickly replaced to the extent that these parts wear out. As a result, in addition to a saving in molded parts, a greater uniformity of the pressing process is achieved.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE258283C true DE258283C (en) |
Family
ID=516125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT258283D Active DE258283C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE258283C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7442228B2 (en) | 2001-10-03 | 2008-10-28 | Aleris Switzerland Gmbh C/O K+P Treuhangesellschaft | Method and device for controlling the proportion of crystals in a liquid-crystal mixture |
| US7531023B2 (en) | 2004-03-19 | 2009-05-12 | Aleris Switzerland Gmbh | Method for the purification of a molten metal |
| US7537639B2 (en) | 2003-11-19 | 2009-05-26 | Aleris Switzerland Gmbh | Method of cooling molten metal during fractional crystallisation |
| US7648559B2 (en) | 2002-07-05 | 2010-01-19 | Aleris Switzerland Gmbh C/O K+P Treuhangesellschaft | Method for fractional crystallisation of a metal |
-
0
- DE DENDAT258283D patent/DE258283C/de active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7442228B2 (en) | 2001-10-03 | 2008-10-28 | Aleris Switzerland Gmbh C/O K+P Treuhangesellschaft | Method and device for controlling the proportion of crystals in a liquid-crystal mixture |
| US7648559B2 (en) | 2002-07-05 | 2010-01-19 | Aleris Switzerland Gmbh C/O K+P Treuhangesellschaft | Method for fractional crystallisation of a metal |
| US7537639B2 (en) | 2003-11-19 | 2009-05-26 | Aleris Switzerland Gmbh | Method of cooling molten metal during fractional crystallisation |
| US7531023B2 (en) | 2004-03-19 | 2009-05-12 | Aleris Switzerland Gmbh | Method for the purification of a molten metal |
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