DE42963C - Extrusion die to achieve dense and crack-free prefabricated cakes - Google Patents
Extrusion die to achieve dense and crack-free prefabricated cakesInfo
- Publication number
- DE42963C DE42963C DENDAT42963D DE42963DA DE42963C DE 42963 C DE42963 C DE 42963C DE NDAT42963 D DENDAT42963 D DE NDAT42963D DE 42963D A DE42963D A DE 42963DA DE 42963 C DE42963 C DE 42963C
- Authority
- DE
- Germany
- Prior art keywords
- cakes
- crack
- extrusion die
- free prefabricated
- achieve dense
- 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.)
- Expired - Lifetime
Links
- 235000012970 cakes Nutrition 0.000 title claims description 12
- 238000001125 extrusion Methods 0.000 title claims description 3
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing 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
- B30B11/224—Extrusion chambers
- B30B11/225—Extrusion chambers with adjustable outlet opening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0005—Details of, or accessories for, presses; Auxiliary measures in connection with pressing for briquetting presses
- B30B15/0017—Deairing means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packaging Frangible Articles (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMTPATENT OFFICE
Vorliegende Erfindung betrifft die Herstellung von Prefskuchen auf sogenannten Strangpressen, d. i. Pressen, bei denen das zu verdichtende Material mittelst eines hin- und hergehenden Stempels portionsweise in ein langes Mundstück gedrückt und dadurch in Kuchen geformt wird, die einander in einem fortlaufenden Strange folgen.The present invention relates to the production of Prefskuchen on so-called extrusion presses, d. i. Presses in which the material to be compacted is reciprocated The stamp is pressed in portions into a long mouthpiece and thereby formed into cakes that are consecutive to each other Follow Strange.
Bei Pressen, wie solche gegenwärtig ausgeführt werden, besteht der Uebelstand, dafs sich mittelst derselben aus losen und federnden Stoffen, wie Getreideschalen u. a. m., welche aufserdem Luft oder auch Feuchtigkeit enthalten, nicht oder nur sehr schwer harte und rissefreie Prefskuchen erzielen lassen. Die Luft bleibt in den Kuchen eingeschlossen' und diese dehnen sich beim Verlassen der Presse, der ihnen innewohnenden Elasticität entsprechend, allemal plötzlich aus und bekommen dabei fast ausnahmslos Sprünge, die deren Festigkeit und Haltbarkeit beeinträchtigen. Das angestrebte Ziel kann jedoch in der Weise erreicht werden, dafs man einerseits die Luft bezw. die Feuchtigkeit beim Anfang oder während des Pressens entweichen läfst, andererseits den Kuchen die Möglichkeit gewährt, sich innerhalb der Presse langsam wieder so weit auszudehnen, als sie dazu das Bestreben haben.In the case of presses such as those currently being carried out, there is the disadvantage that by means of them from loose and resilient materials, such as bowls of grain and others. m., which also contain air or moisture, not or only with great difficulty and achieve crack-free prefabricated cakes. The air remains trapped in the cake 'and these expand when leaving the press, according to their inherent elasticity, always suddenly and almost without exception get cracks that affect their strength and Impair the shelf life. However, the desired goal can be achieved in the way that on the one hand the air resp. the humidity at the beginning or during the pressing Lets escape, on the other hand, the cake is given the opportunity to get inside the press to slowly expand again as far as they strive to do.
Eine zu diesem Arbeitsverfahren dienliche Presse ist durch beiliegende Zeichnung dargestellt. Dieselbe besteht, wie bei anderen Pressen gleicher Art, aus einem Rumpf a (dessen oberer Theil in der Zeichnung fortgelassen ist), dem mit seiner Endfläche zwischen cl und c2 hin- und hergehenden Kolben c und dem Mundstück b. Letzteres hat eine um den Bolzen e drehbare Zunge d, welche sich vermöge einer Schraube f verstellen läfst, so dafs entweder deren Fläche d1 d2 der gegenüberliegenden Fläche des Mundstückes parallel ist, oder dafs der Hohlraum des letzteren sich in der Richtung von dl nach d2 verengt. Infolge seiner Bewegung schiebt der Kolben bei jedem Hube einen Theil des in dem Rumpf enthaltenen Materials in das Mundstück und preist es darin zusammen, während die bereits geformten Kuchen gleichzeitig vorwärts geschoben werden.A press useful for this working process is shown in the accompanying drawing. As in other presses of the same type, it consists of a body a (the upper part of which has been omitted in the drawing), the piston c , with its end face reciprocating between c 1 and c 2, and the mouthpiece b. The latter has a tongue d rotatable about the bolt e , which can be adjusted by means of a screw f , so that either its surface d 1 d 2 is parallel to the opposite surface of the mouthpiece, or the cavity of the latter extends in the direction of d 1 narrowed after d 2. As a result of its movement, with each stroke the piston pushes a part of the material contained in the body into the mouthpiece and compresses it therein, while the already formed cakes are pushed forward at the same time.
Um Luft und etwaige Feuchtigkeit aus dem zu comprimirenden Material entweichen zu lassen, ist das Mundstück mit den Löchern g versehen. Hierdurch werden dichte und feste Kuchen innerhalb der Presse erzielt. Um alsdann die Wiederausdehnung der Kuchen langsam stattfinden zu lassen und das Auftreten von Rissen in denselben zu vermeiden, sind die Wandflächen am Ende des Mundstückes (von d3 bis rf4) divergirend angeordnet, so dafs. die Kuchen die Presse in einer ihrem Ausdehnungsbestreben entsprechenden Gröfse verlassen. Vermöge dieser beiden Einrichtungen werden auf der Presse in den meisten Fällen Kuchen erzeugt, welche die gewünschten Eigenschaften besitzen.To allow air and any moisture to escape from the material to be compressed, the mouthpiece is provided with holes g . This results in dense and firm cakes inside the press. In order to then allow the cakes to expand again slowly and to avoid the occurrence of cracks in them, the wall surfaces at the end of the mouthpiece (from d 3 to rf 4 ) are arranged so as to diverge. the cakes leave the press in a size appropriate to their tendency to expand. By virtue of these two devices, cakes are in most cases produced on the press which have the desired properties.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE42963C true DE42963C (en) |
Family
ID=318324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT42963D Expired - Lifetime DE42963C (en) | Extrusion die to achieve dense and crack-free prefabricated cakes |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE42963C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0359285A2 (en) * | 1988-09-16 | 1990-03-21 | Franz Haimer | Apparatus for briquetting stalks,in particular straw |
WO1991004150A1 (en) * | 1989-09-15 | 1991-04-04 | Franz Haimer | Device for making vegetable matter, especially stalks, into briquettes |
EP1864790A2 (en) * | 2006-06-07 | 2007-12-12 | Mann+Hummel Gmbh | Pressure device, in particular for dehumidifying metal cuttings or grinding debris |
-
0
- DE DENDAT42963D patent/DE42963C/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0359285A2 (en) * | 1988-09-16 | 1990-03-21 | Franz Haimer | Apparatus for briquetting stalks,in particular straw |
EP0359285A3 (en) * | 1988-09-16 | 1990-11-22 | Franz Haimer | Apparatus for briquetting plant material, in particular stalks and the like |
WO1991004150A1 (en) * | 1989-09-15 | 1991-04-04 | Franz Haimer | Device for making vegetable matter, especially stalks, into briquettes |
US5302102A (en) * | 1989-09-15 | 1994-04-12 | Franz Haimer | Equipment for briqueting vegetal material in particular stalk-plant materials |
EP1864790A2 (en) * | 2006-06-07 | 2007-12-12 | Mann+Hummel Gmbh | Pressure device, in particular for dehumidifying metal cuttings or grinding debris |
EP1864790A3 (en) * | 2006-06-07 | 2008-05-28 | Mann+Hummel Gmbh | Pressure device, in particular for dehumidifying metal cuttings or grinding debris |
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