DE42963C - Extrusion die to achieve dense and crack-free prefabricated cakes - Google Patents

Extrusion die to achieve dense and crack-free prefabricated cakes

Info

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
Application number
DENDAT42963D
Other languages
German (de)
Original Assignee
FIRMA NAGEL & KAEMP in Hamburg, Oberhafenstr. 1
Publication of DE42963C publication Critical patent/DE42963C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B11/00Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/22Extrusion presses; Dies therefor
    • B30B11/224Extrusion chambers
    • B30B11/225Extrusion chambers with adjustable outlet opening
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0005Details of, or accessories for, presses; Auxiliary measures in connection with pressing for briquetting presses
    • B30B15/0017Deairing means

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)

Patent-Anspruch:Patent claim: Ein Strangpressenmundstück zur Erzielung dichter und rissefreier Prefskuchen, bei welchem die in dem Material enthaltene Luft und Feuchtigkeit durch eine Anzahl Löcher g entweicht und andererseits die Wiederausdehnung der Kuchen durch divergirende Wandflächen dsdi verlangsamt wird.An extrusion die for obtaining dense and crack-free prefabricated cakes, in which the air and moisture contained in the material escapes through a number of holes g and, on the other hand, the re-expansion of the cakes is slowed down by diverging wall surfaces d s d i. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT42963D Extrusion die to achieve dense and crack-free prefabricated cakes Expired - Lifetime DE42963C (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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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