DE1529838A1 - Extrusion press for sealing synthetic resin materials - Google Patents

Extrusion press for sealing synthetic resin materials

Info

Publication number
DE1529838A1
DE1529838A1 DE19661529838 DE1529838A DE1529838A1 DE 1529838 A1 DE1529838 A1 DE 1529838A1 DE 19661529838 DE19661529838 DE 19661529838 DE 1529838 A DE1529838 A DE 1529838A DE 1529838 A1 DE1529838 A1 DE 1529838A1
Authority
DE
Germany
Prior art keywords
opening
zone
extrusion press
treated
suction opening
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.)
Pending
Application number
DE19661529838
Other languages
German (de)
Inventor
Pierre Berger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie des Ateliers et Forges de la Loire SA
Original Assignee
Compagnie des Ateliers et Forges de la Loire SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Compagnie des Ateliers et Forges de la Loire SA filed Critical Compagnie des Ateliers et Forges de la Loire SA
Publication of DE1529838A1 publication Critical patent/DE1529838A1/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/76—Venting, drying means; Degassing means
    • B29C48/765—Venting, drying means; Degassing means in the extruder apparatus
    • B29C48/766—Venting, drying means; Degassing means in the extruder apparatus in screw extruders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/482—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/86—Component parts, details or accessories; Auxiliary operations for working at sub- or superatmospheric pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B29C48/402—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders the screws having intermeshing parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/63—Screws having sections without mixing elements or threads, i.e. having cylinder shaped sections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/76—Venting, drying means; Degassing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Description

Dtol.-fci0· R. H. Belli · *n' * λί *n?* Dtol.-fci0 RH Belli * n '* λί * n? *

i ρ iuhur mam*,** 19. April 1966i ρ iuhur mam *, ** April 19, 1966

c.c.

. W. Herrmann-Trentepohl f««*«**: η. r η. β» »unds««. W. Herrmann-Trentepohl f «« * «**: η. r η. β »» unds ««

1 COQQOO Telex*»«» PATENTANWÄLTE 10^130001 COQQOO Telex * »« »PATENTANWÄLTE 10 ^ 13000

ι- -ιι- -ι

AHw at tteacnp t/llAHw at tteacnp t / ll

n M 0 η β Ii · ι» * M Mn M 0 η β Ii · ι »* M M

Τ·Ι·χ «»MtΤ · Ι · χ «» Mt

A 17 350 ./ThfiA 17 350 ./Thfi

ΙΠ (ΙΠ (

Compagni· de· Atelitr· et Forges d· la Ioirt (St Ohaaond PIrminy - at Btienne - Jaoob HoItMr), 12 rue de la Roohefoucauld , Paris, FrankreichCompagni de Atelitr et Forges d la Ioirt (St Ohaaond PIrminy - at Btienne - Jaoob HoItMr), 12 rue de la Roohefoucauld, Paris, France

"Strangpresse zum Vergüten von Kunststoffen""Extrusion press for tempering plastics"

Bt let bekannt, in die·em Zweoke emtipreokender Weiee auag·- bildettn Strangpreeeen, deren Sokaeoke durch ein« andere Ia-•ohine ait dem su rerarbeitenden Material beiohiokt wird, entweder an der Verbindungsstelle der beiden Maschinen oder etwas stromaufwärts der Sehnecke der letzten Maschine ehe Entgasung dss su behandelnden Ghite· Tor*un«h*en.Bt let known, in the emtipreokender white auag Bildettn Strangpreeeen, the sokaeoke of which is accompanied by a "different Ia- • ohine ait the su rerworking material, either at the junction of the two machines or a little upstream of the tendon of the last machine Degassing of the subject to be treated.

Vorriehtunfen dieser bekannten Art eraögliohen es aber niemt, ait hohen üaterdrüeke» iu arbeiten, weil da· behandelte frtt Ib eegenetrea «u Air flehneoke naoh der öffnung der lmtfa«u«i« Torriohtung hin unter Saugwirkung gesetst wird. De»halb gehtHowever, it is never possible to prepare this known type ait high pressure, because the treated fat Ib eegenetrea «u Air flehneoke near the opening of the lmtfa« u «i« Torriohtung is set out under suction. That's half the way

bei dem mittleren Druck, der hierbei anwendbar ist, ein großer Teil der Wirkung der Entgasungswehandlung yerloren, und man beraubt sich andererseits der Möglichkeiten, welche die Verwendung eines höheren Vakuums ergibt, weil durch die hierbei erfolgende !Extraktion anderer verunreinigter Schichten die Eigenschaften der behandelten Kunststoffe, insbesondere deren elektrische und mechanische Eigenschaften erheblich verbessert und außerdem der auf das Vorhandensein von Verunreinigungen zurückzuführende unangenehme Geruch und Geschmack, welche für die Verwendungsmöglichkeiten gewisser Kunststoffe, zum Beispiel zum Zwecke der Verpackung von Lebensmitteln und dergleichen nachteilig sind, beseitigt werden·at the mean pressure that is applicable here large part of the effect of the degassing conversion is lost, and on the other hand one deprives oneself of the possibilities which the use of a higher vacuum gives because through the extraction of other contaminated layers, the properties of the treated plastics, in particular, their electrical and mechanical properties are significantly improved and also the unpleasant one due to the presence of impurities Smell and taste, which for the uses of certain plastics, for example for the purpose of Packaging of foodstuffs and the like are disadvantageous must be eliminated

Segenstand de* Erfindung ist eine Strangpresse mit zwei nebeneinanderliegenden Sehnecken und Ineinandergreifenden Sehneokengängtn, durch deren neuartige Ausbildung diese Möglichkeiten geschaffen werden.The subject of the invention is an extrusion press with two adjacent tendon corners and interlocking tendon glands, thanks to their novel design these Opportunities are created.

909885/1321 bad ordinal909885/1321 bad ordinal

Diese Strangpresse weist in dem Futter der beiden Schnekken eine Öffnung für die Einführung des vorher gelifisierten Behandlungsgutts unter Druck auf. Stromaufwarte,besogen auf diese Beschickungsöffnung, liegt ein Bereich der Gewindegänge der beiden Schnecken, der stromabwärts einer derart der Beschickungsöffnung vorgeschalteten Entgasungβ-Öffnung angeordnet ist. Ss erweist sich als besonders vorteilhaft, wenn der Abstand zwischen der Beschickungsöffnung und der dieser vorgeschalteten Bntgasungsöffnung gleich oder größer ala vier Gtewindegänge der Schnecke ist«This extruder has an opening in the feed of the two screws for the introduction of the previously gelled material to be treated under pressure. Upstream waiting area, drawn on this loading opening, is located in an area of the Thread turns of the two screws, which is arranged downstream of such a degassing opening upstream of the feed opening. Ss proves to be particularly advantageous when the distance between the loading opening and that of the upstream degassing opening or greater than four turns of the screw «

Die vorherige Überführung dee Behandlungegutes in den GeI-zustand kann in einer Polymerisationekolonne, einer kontinuierlich arbeitenden Geliermaschine, einem unter Druck arbeitenden beheizten Speiser, oder, allgemein gesagt, durch jede Maschine erfolge, die befähigt ist, unter Druck in kontinuierlicher Weise Kunststoff in gelförmigem Sustand zu tiberführen, gleichgültig ob dieser Kunststoff vorher bereitsThe previous conversion of the material to be treated into the gel state can be carried out in a polymerization column, a continuously operating gelling machine, a heated feeder operating under pressure, or, generally speaking, through every machine was said to be capable of continuously applying plastic in a gel-like state under pressure transfer, regardless of whether this plastic has already been used teilweise entgast worden ist oder nicht· Me Beschickunghas been partially degassed or not · Me charge

daß sit diesem Behandlungsgut erfolgt so,/nicht etwa zusammenthat sit this item to be treated so, / not about together alt diesem» dsS Auöenluft in die Strangpresse eintretest kann«old this »dsS outside air enters the extrusion press can"

In der Zone, in welcher das Gut in die Strangpresse einge-In the zone in which the material enters the extruder

909885/1321 ^ ' 909885/1321 ^ '

führt wird, wird durch die schabende Wirkung der Scheitel der Schneckengänge der Fluß des vorher in gelförmigem Zustand verbrachten Gutes in Lamellen unterteilt, wodurch die günstigsten Bedingungen für die Extraktion von in der Wärme flüchtigen Stoffen durch die Einwirkung dew Vakuums §uf diese dünnen Schichten des Behandlungsgutes geschaffen werden. In der stromaufwärts der Beschickungszone liegenden Zone der Schneckengänge wird infolge des Abschlusses, der durch das Ineinandergreifen der Schneckengänge bewirkt wird, jedes Heraussaugen von Behandlungsgut durch die Evakuationsöffnung vermieden.leads, through the scraping effect of the apex of the worm threads, the flow of the previously in a gel-like state spent property divided into lamellae, creating the most favorable conditions for the extraction of in the Heat of volatile substances created by the action of the vacuum on these thin layers of the material to be treated will. In the zone of the screw flights upstream of the loading zone, as a result of the closure, which is caused by the interlocking of the screw flights, each sucking out of the material to be treated through the evacuation opening avoided.

Im Falle gewisser Stoffe erfolgt das Zerplatzen von Blasen aus flüchtigen Stoffen, die von einem Film aus dem Kunststoff umhüllt sind, an einer verhältnismäßig weit stromaufwärts liegenden Stelle der Schnecken. Unter diesen Voraussetzungen muß die Stelle, an welcher das Vakuum wirksam wird, in einer Entfernung von mehr als vier Gewindegängen der Schnecke von der Beschickungsöffnung und jedenfalls immer an einer Stelle des mit Gewindegängen versehenen Bereichs der Schnecken liegen. Dann werden die Eücketände, die beim Zerplatzen dieser Blasen entstehen, kontinuierlich stromabwärts getrieben, ohne das passierende gereinigte Behandlungsgut bei dessen langem Aufenthalt in dem warmenIn the case of certain substances, the bursting of bubbles from volatile substances occurs from a film made of the plastic are encased, at a relatively far upstream point of the snails. Under these conditions the point at which the vacuum takes effect must be at a distance of more than four threads the screw from the loading opening and in any case always at one point in the area provided with threads the snails lie. Then the debris created when these bubbles burst become continuous driven downstream without the passing cleaned material to be treated during its long stay in the warm

909885/1321 " 5 "909885/1321 " 5 "

Bereich zu verunreinigen.Contaminate area.

Da der Abschluß gegen die Möglichkeit eines Rückwärtssaugens des Kunststoffes mit dem funktioneilen Spiel erfolgt, welches durch das Ineinanderschachteln der beiden Schnecken zwischen diesen und deren Drehung in dem Putter bedingt ist, verbleibt ein für das Wirksamwerden des Unterdruckes hinreichender freier Gresamtquerschnitt.As the conclusion against the possibility of backward suction of the plastic with the functional game takes place, which is achieved by nesting the two snails between these and their rotation in the putter, there remains a sufficient pressure for the negative pressure to take effect free total cross-section.

In ihrem stromaufwärtigen Bereich weisen die Schnecken eine abgedichtete Druckzone auf, durch welche der Eintritt von Luft in den Vergütungsraum verhindert wird. Anschließend sind gegebenenfalls die Schneckengänge so ausgebildet, daß dort die Einführung von Hilfsstoffen, welche nicht dem Vakuum ausgesetzt werden dürfen, erfolgen kann. Dieser Zone ist gegebenenfalls eine in bekannter Weise arbeitende Mischbzw. Knetzone nachgeschaltet.In their upstream area, the snails have a sealed pressure zone, through which the entry of air into the tempering area is prevented. Afterward If necessary, the screw flights are designed so that there the introduction of auxiliary materials, which are not the vacuum may be exposed. This zone is optionally a mixing or working in a known manner. Downstream kneading zone.

Im Endbereich der Strangpresse wird in der üblichen Weise das plastische Material zusammengepreßt und bewegt sich durch eine konvergierende Zone nach der Austrittsöffnung, welche in einer Düse oder einer beliebigen anderen dem gleichen Zweck dienenden Einrichtung mündet.In the end of the extruder is done in the usual way the plastic material is compressed and moves through a converging zone towards the exit opening, which opens into a nozzle or any other device serving the same purpose.

- 6 909885/1321 - 6 909885/1321

Nachstehend wird, lediglich als Beispiel, auf welches die Erfindung keineswegs beschränkt ist, eine Ausführungsform einer Strangpresse beziehungsweise eines Extruders mit den Merkmalen der Erfindung im einzelnen anhand der Abbildungen beschrieben.An embodiment is given below, merely as an example to which the invention is in no way restricted an extruder or an extruder with the features of the invention in detail with reference to the figures described.

Die Figuren 1 und 2 veranschaulichen zwei zueinander senkrechte axiale Schnitte durch die Maschine.Figures 1 and 2 illustrate two mutually perpendicular axial sections through the machine.

Die Strangpresse besteht im wesentlichen aus den beiden nebeneinander angeordneten in ihrem Putter umlaufenden Schnekken 1 und 2, deren Schneckengänge ineinandergeschachtelt sind und deren Enden, an denen ein zweckentsprechender Antrieb angreift, durch Stopfbuchsen 3 und 4 hindurchgeführt sind.The extruder essentially consists of the two side by side arranged in their putter revolving screws 1 and 2, the screw flights nested in one another and the ends of which are engaged by an appropriate drive, passed through stuffing boxes 3 and 4 are.

Das in dem erwünschten Grade gelifizierte Behandlungsgut wird in zweckentsprechender Menge kontinuierlich, ohne daß es mit Luft in Kontakt gelangt, durch die Öffnung 5 eingeführt. Es wird von bekannten, nicht dargestellten Maschinen, wie Polymerisationskolonnen, kontinuierlich arbeitenden GrelKifizierungsvorrichtungen oder beheizten unter Druck arbeitenden Speisern & zugeführt.The material to be treated, which has been gelled to the desired degree, is continuously introduced through the opening 5 in an appropriate amount without it coming into contact with air. It is supplied by well-known, not represented machines such Polymerisationskolonnen continuously operating GrelKifizierungsvorrichtungen or heated operating under pressure feeders &.

Mit 6 ist die Öffnung bezeichnet, die mit der Unterdruck-With 6 the opening is referred to, which is connected to the vacuum

909885/1321 ? 909885/1321 ?

quelle in beliebig geeigneter Weise verbunden ist.source is connected in any suitable manner.

In einem von Schneckengängen freien Bereich 7 der Schnecken bildet das sich in stromabwärtiger Richtung bewegende Behandlungsgut selbsttätig einen abdichtenden Ring, während in der stromaufwärts liegenden Zone 8 jede Rückwärtsbewegung des Gutes verhindert wird, jedoch die Rückstände der die Gasblasen umgebenden Filme, die vor Erreichen der Öffnung 6 geplatzt sind, nach rückwärts hin abgeführt werden.In an area 7 of the screws that is free of screw flights forms the material to be treated moving in the downstream direction automatically a sealing ring, while in the upstream zone 8 any backward movement of the goods is prevented, however, the residues of the films surrounding the gas bubbles, which burst before reaching the opening 6 are to be discharged backwards.

Nachdem das Gut derart von den vorher in ihm enthaltenen Verunreinigungen befreit worden ist, können bei 9 die etwa zuzusetzenden Hilfsstoffe, die zum Beispiel nicht dem bei 8 herrschenden Unterdruck ausgesetzt werden dürfen, unter Druck eingeführt werden. Darauf werden das Behandlungsgut und die Hilfsstoffe bei 10 durch die Gewindegänge der Schnekken gemischt und geknetet und von der Endzone 11 übernommen, welche das Gut unter Druck nach der Austrittsöffnung 12 hin und aus dieser heraus preßt.After the material has been freed from the impurities previously contained in it in this way, the approximately auxiliary materials to be added which, for example, are not included in the 8 may be exposed to the prevailing negative pressure, introduced under pressure. The items to be treated are then and the auxiliary materials at 10 through the threads of the screws mixed and kneaded and taken over from the end zone 11, which the material under pressure towards the outlet opening 12 and presses out of this.

Patentansprüche:Patent claims:

909885/1321909885/1321

Claims (1)

Patentansprüche: Patent claims: ι 1.)Strangpresse zur vergütenden Behandlung von Kunststoffen durch Vakuum mit zwei mit ihren Schneckengängen ineinandergreifenden Schnecken, einer Öffnung zur Beschickung der Schnecken unter Druck in zweckentsprechend wählbaren Mengen mit gelifizierteii, Stoff unter Verhinderung eines Kontaktes deis BeSchickung8gutes mit der Außenluft sowie einer Absaugöffnung, dadurch gekennzeichnet, daß die Absaugöffnung in einem stromaufwärtigen Bereich der Schneckengänge in der Nähe des Beginns derselben, dagegen die Beschickungsöffnung in stromabwärtigem Abstand von der Absaugöffnung angeordnet ist«ι 1.) Extrusion press for the heat treatment of plastics by vacuum with two screws intermeshing with their screw flights, an opening for feeding the Snails under pressure in appropriately selectable quantities with gelified egg, substance preventing contact deis BeSchickung8guts with the outside air as well as one Suction opening, characterized in that the suction opening in an upstream area of the worm flights in the vicinity of the beginning of the same, on the other hand the feed opening at a downstream distance from the suction opening is arranged « 2« Strangpresse nach Anspruch 1, dadurch gekennzeichnet, daß der die Besehiokunge- und Entgasungsöffnung voneinander trennende abstand wenigstens 4 Gewindegangen der Schnecke entspricht α2 «extruder according to claim 1, characterized in that the Besehiokunge- and degassing opening from each other Separating distance at least 4 threads of the screw corresponds to α ?. Strangpresse nach Anspruch 1, dadurch gekennzeichnet, daß sie eine Verguttmt-asone von vergrößertem, die Entspannung des Gutes ermöglichenden Querschnitt aufweist.?. Extrusion press according to claim 1, characterized in that she a pampered-asone of increased, the relaxation has the cross-section that enables the goods. 4.- Strangpresse nach Anspruch 1, dadurch gekennzeichnet, daß sie anschließend an die Entspannungszone eine nach der Austrageöffnung hin liegende komprimierend wirkende Zone aufweist.4. Extruder according to claim 1, characterized in that then one after the other to the relaxation zone Discharge opening facing compressing zone having. 909885/1321 _g_909885/1321 _ g _ < 52983*8<52983 * 8 5· Strangpresse nach Anspruch 1, gekennzeichnet durch eine Zone, in welcher das Behandlungsgut auf seinem Wege nach der Austragsöffnung hin von neuem entspannt und ihm unter Druck Hilfsstoffe einverleibt werden, bevor es nach Passieren einer Misch- oder Knetzone von neuem komprimiert wird ο5 · Extrusion press according to claim 1, characterized by a zone in which the material to be treated on its way to the discharge opening relaxed again and under it Printing auxiliaries are incorporated before passing it after a mixed or kneading zone is compressed again ο 909885/1321909885/1321 L e e r s e i t eL e r s e i t e
DE19661529838 1965-05-05 1966-04-20 Extrusion press for sealing synthetic resin materials Pending DE1529838A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR15866A FR1442473A (en) 1965-05-05 1965-05-05 Improvement in extruders for refining plastics

Publications (1)

Publication Number Publication Date
DE1529838A1 true DE1529838A1 (en) 1970-01-29

Family

ID=8578025

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19661529838 Pending DE1529838A1 (en) 1965-05-05 1966-04-20 Extrusion press for sealing synthetic resin materials

Country Status (2)

Country Link
DE (1) DE1529838A1 (en)
FR (1) FR1442473A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4039943A1 (en) * 1990-12-14 1992-06-17 Berstorff Gmbh Masch Hermann METHOD AND DEVICE FOR THE UNIFORM, CONTINUOUS MANUFACTURE OF A RUBBER-BASED AND FINISHED MIXTURE FOR VEHICLE TIRES, DRIVE BELTS, TRANSPORT BELTS AND TECHNICAL RUBBER PRODUCTS IN ONLY ONE MIXING DEVICE

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2563462B1 (en) * 1984-04-27 1991-10-18 Clextral COMPOSITE PRODUCT CONSISTING OF A MIXTURE OF CELLULOSIC PARTICLES AND A THERMOPLASTIC BINDER AND METHOD FOR THE PRODUCTION THEREOF
IT1221893B (en) * 1986-05-30 1990-07-12 Giuseppe Gagliani CONTINUOUS INDUSTRIAL MIXING PROCEDURE THROUGH SPECIAL CONFORMATION OF THE EXTRUDER SCREW
DE4134026C2 (en) * 1991-10-15 1994-04-21 Werner & Pfleiderer Co-rotating screw kneader
FR2817501B1 (en) * 2000-12-06 2003-07-25 Clextral PROCESS AND PLANT FOR THE CONTINUOUS MANUFACTURE OF AN EXPANDED SETTING PRODUCT IN BIODEGRADABLE MATERIAL

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4039943A1 (en) * 1990-12-14 1992-06-17 Berstorff Gmbh Masch Hermann METHOD AND DEVICE FOR THE UNIFORM, CONTINUOUS MANUFACTURE OF A RUBBER-BASED AND FINISHED MIXTURE FOR VEHICLE TIRES, DRIVE BELTS, TRANSPORT BELTS AND TECHNICAL RUBBER PRODUCTS IN ONLY ONE MIXING DEVICE

Also Published As

Publication number Publication date
FR1442473A (en) 1966-06-17

Similar Documents

Publication Publication Date Title
DE2719095C2 (en) Screw press for processing plastic masses, in particular plastics and rubber
EP0087699B1 (en) Multiaxial machine for continuously mixing and kneading plastifiable material, having intermeshing screws rotating in the same direction and at a constant distance between the axes
EP1112052A1 (en) Method and device for producing tablets
DE2121914A1 (en) Device and method for extrusion molding of thermoplastics
AT396900B (en) DEVICE FOR PRETREATING THERMOPLASTIC PLASTIC
DE2000857A1 (en) Method and device for extruding thermoplastic material, in particular natural or synthetic rubber
DE1177808B (en) Screw extruder or screw injection molding machine for processing thermoplastic plastics and similar materials
DE1779122A1 (en) Device for injection molding of thermoplastics, especially with a high content of volatile substances
EP0113402B1 (en) Process and apparatus for the manufacture of a monobase or plural base propellant
DE1554756B2 (en) SCREW EXTRUSION PRESS FOR PROCESSING THERMOPLASTIC MATERIALS
DE10142294A1 (en) Extrusion-molding machine for producing ceramic molding has material-introducing portion comprising casing, which defines introduction passage where pair of introduction screws are provided
DE1529838A1 (en) Extrusion press for sealing synthetic resin materials
DE2831321A1 (en) DEVICE AND METHOD FOR RECOVERING WASTE FROM THERMOPLASTIC PLASTIC
WO2019211109A1 (en) Mixing and kneading machine
DE2052399A1 (en) Method and device for the continuous production of glass fiber reinforced thermoplastic connec fertilizers, mixtures or structures
DE846012C (en) Device for producing press mixtures from hardenable plastic masses
DE2417116C2 (en) Mixing extruder
WO2002041697A2 (en) Method and device for producing sausage meat
DE3044577C2 (en) Process and device for the continuous production of propellant charge powder
DE3344297A1 (en) Device for extruding synthetic resins
DE878844C (en) Screw press for mixing and extrusion of organic, plastic plastics, in particular thermoplastics
DE19852493B4 (en) Extruder with degassing
DE2241111C2 (en) Double or multi-screw press for processing powdery plasticizable compounds
DE923163C (en) Extrusion press for organic plastics, especially thermoplastics
AT233816B (en) Device for plasticizing thermoplastic plastics od. Similar. Crowds