DE879913C - Kneading device with multi-pitch screws - Google Patents

Kneading device with multi-pitch screws

Info

Publication number
DE879913C
DE879913C DEF3193D DEF0003193D DE879913C DE 879913 C DE879913 C DE 879913C DE F3193 D DEF3193 D DE F3193D DE F0003193 D DEF0003193 D DE F0003193D DE 879913 C DE879913 C DE 879913C
Authority
DE
Germany
Prior art keywords
kneading device
sections
storage areas
housing
kneading
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
Application number
DEF3193D
Other languages
German (de)
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Priority to DEF3193D priority Critical patent/DE879913C/en
Application granted granted Critical
Publication of DE879913C publication Critical patent/DE879913C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
    • 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
    • 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
    • B29C48/405—Intermeshing co-rotating screws
    • 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
    • B29C48/535—Screws with thread pitch varying along the longitudinal axis
    • 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
    • B29C48/68—Barrels or cylinders
    • B29C48/685—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads
    • B29C48/687—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads having projections with a short length in the barrel direction, e.g. pins

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Description

Die Erfindung betrifft eine Knetvorrichtung bzw. The invention relates to a kneading device or

Strangpresse mit mehreren in einem Gehäuse sich gleichsinnig drehenden Förderschnecken, die mit ihren Gängen ineinandergreifen und in Abschnitte unterteilt sind, zwischen denen ein Raum ohne Gewinde frei gelassen ist. Die Erfindung besteht darin, daß die Schnecken mehrgängig ausgebildet sind und in den Räumen zwischen den Abschnitten gleicher oder verschiedener Ganghöhe Stauflächen angeordnet sind, die vorzugsweise an der Innenwand des Gehäuses angebracht sind. Extrusion press with several rotating in the same direction in a housing Screw conveyors, which mesh with their flights and are divided into sections between which a space without a thread is left free. The invention exists in that the screws are multi-threaded and in the spaces between storage areas are arranged in the sections of the same or different aisle, which are preferably attached to the inner wall of the housing.

Die Knetvorrichtung nach der Erfindung hat gegenüber den bekannten Knetvorrichtungen mit nur eingängigen Schnecken den Vorteil, daß eine kräftigere Durchmischung der zu verarbeitenden Massen und stärkere Quetsch- und Scherkräfte für den Knetvorgang erzielt werden. Das Einzieh- und Fördervermögen der Knetvorrichtung nach der Erfindung ist besser und gleichmäßiger als die von Maschinen gleicher Bauart mit nur eingängiger Ausführung. Zweckmäßig ist es, an einer Schneckenspindel hintereinander mehrere Abschnitte mit Schneckengängen verschiedener Ganghöhe und gegebenenfalls Gangtiefe anzuordnen und zwischen diesen Abschnitten einen kleinen Abstand vorzusehen, in dem Stauflächen an der Innenwand des Schneckengehäuses angebracht sind. Die Stauflächen können in den einzelnen Unterbrechungen an verschiedener Stelle des Gehäuseumfangs sitzen, so daß sie gegeneinander versetzt sind. Zweckmäßig sind diese Stauflächen um ihre Achse drehbar angeordnet, so daß sie sich verstellen lassen, und mit einer Vorrichtung versehen, die es ermöglicht, sie in jeder Stellung festzusetzen. The kneading device according to the invention has over the known Kneading devices with only single-flight screws have the advantage that they are more powerful Mixing of the masses to be processed and stronger squeezing and shearing forces can be achieved for the kneading process. The pull-in and conveying capacity of the kneading device according to the invention is better and more uniform than that of machines of the same type with only catchy execution. It is useful to one behind the other on a worm spindle several sections with worm flights of different pitch and possibly To arrange aisle depth and to provide a small distance between these sections, in which storage areas are attached to the inner wall of the screw housing. The storage areas can be found in the individual interruptions at different points on the circumference of the housing sit so that they are offset from one another. These storage areas are useful arranged rotatable about its axis so that they can be adjusted, and with a Provided device that makes it possible to fix them in any position.

Dadurch kann der Widerstand der Masse bei ihrem Durchgang in weiten Grenzen geregelt werden. This allows the resistance of the mass to widen as it passes through Limits are regulated.

Die Zeichnung zeigt in der Abb. I eine Seitenansicht einer zweispindeligen Knetvorrichtung teilweise im Schnitt, deren Schnecke aus je 2 parallel verlaufenden Schneckengewinden besteht, die ineinandergreifen. Die Schneckenspindeln sind mit a und aE, die Schneckengewinde mit b, b1 und das Schneckengehäuse mit c bezeichnet. Die Schneckengänge sind in zwei Abschnitte unterteilt, deren Ganghöhe in Richtung der Bewegung der Knetmasse abnimmt. Die Schneckengänge sind bei d unterbrochen, und an der Unterbrechungsstelle sind Stauflächen e an der Innenwand des Schneckengehäuses angebracht. Im Schneckengehäuse sind Kammern sichtbar, durch die Heiz- und Kühlmittel geleitet oder in die elektrischen Heizdrähte eingebaut werden können. Abb. 2 zeigt einen Querschnitt der Vorrichtung in Richtung A-B. Die Vorrichtung nach der Erfindung ist zum Kneten von plastischen oder härtbaren Massen sowie zur Formgebung solcher Massen, z. B. zum Auspressen durch geeignet geformte Matrizen, oder zur Durchführung von Polymerisations- und Kondensationsreaktionen sehr geeignet. The drawing shows in Fig. I a side view of a two-spindle Kneading device partly in section, the screw of which consists of two parallel screws There is worm threads that intermesh. The worm spindles are with a and aE, the worm threads with b, b1 and the worm housing with c. The worm flights are divided into two sections, the pitch of which is in the direction of the movement of the modeling clay decreases. The worm threads are interrupted at d, and at the point of interruption there are storage areas e on the inner wall of the screw housing appropriate. Chambers through which the heating and cooling media are visible are visible in the screw housing routed or built into the electrical heating wires. Fig. 2 shows a cross section of the device in direction A-B. The device according to the invention is used for kneading plastic or hardenable materials and for shaping them Masses, e.g. B. for pressing out through appropriately shaped dies, or for implementation very suitable for polymerization and condensation reactions.

Claims (4)

PATENTANsPRÜcHE: I. Knetvorrichtung bzw. Strangpresse mit mehreren in einem Gehäuse sich gleichsinnig drehenden Förderschnecken, die mit ihren Gängen ineinandergreifen und in Abschnitte unterteilt sind, zwischen denen ein Raum ohne Gewinde frei gelassen ist, dadurch gekennzeichnet, daß die Schnecken (b, b) mehrgängig ausgebildet sind und in den Räumen (d) zwischen den Abschnitten gleicher oder verschiedener Ganghöhe Stauflächen (e) angeordnet sind, die vorzugsweise an der Innenwand des Gehäuses angebracht sind. PATENT CLAIMS: I. Kneading device or extruder with several in a casing rotating conveyor screws with their gears interlock and are divided into sections, between which a space without The thread is left free, characterized in that the worms (b, b) have multiple threads are formed and in the spaces (d) between the sections of the same or different Aisle storage areas (e) are arranged, which are preferably on the inner wall of the Housing are attached. 2. Knetvorrichtung nach Anspruch I, dadurch gekennzeichnet, daß die Stauflächen am Umfang des Schneckengehäuses gegeneinander versetzt sind. 2. kneading device according to claim I, characterized in that the Storage areas on the circumference of the screw housing are offset from one another. 3. Knetvorrichtung nach Anspruch I, dadurch gekennzeichnet, daß die Gangtiefe der einzelnen Schneckenabschnitte verschieden ist. 3. kneading device according to claim I, characterized in that the The flight depth of the individual screw sections is different. 4. Knetvorrichtung nach Anspruch I, dadurch gekennzeichnet, daß die Stauflächen um ihre Achse drehbar und in jeder Stellung festgehalten werden können. 4. kneading device according to claim I, characterized in that the Storage areas can be rotated around their axis and held in any position. Angezogene Druckschriften: Schweizerische Patentschrift Nr. 220 550. Attached publications: Swiss patent specification No. 220 550.
DEF3193D 1944-02-22 1944-02-22 Kneading device with multi-pitch screws Expired DE879913C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF3193D DE879913C (en) 1944-02-22 1944-02-22 Kneading device with multi-pitch screws

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF3193D DE879913C (en) 1944-02-22 1944-02-22 Kneading device with multi-pitch screws

Publications (1)

Publication Number Publication Date
DE879913C true DE879913C (en) 1953-06-18

Family

ID=7083721

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF3193D Expired DE879913C (en) 1944-02-22 1944-02-22 Kneading device with multi-pitch screws

Country Status (1)

Country Link
DE (1) DE879913C (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1155232B (en) * 1960-12-06 1963-10-03 Gerhard Kestermann Zahnraeder Screw extrusion press for processing thermoplastics
DE1245584B (en) * 1960-08-22 1967-07-27 Plastus S A Injection or compression head on the conveyor or plasticizing cylinder of a machine that processes plastic or plasticizable materials
DE2235784A1 (en) * 1972-07-21 1974-01-31 Uniroyal Ag METHOD AND DEVICE FOR PROCESSING HIGHLY VISCOSE MATERIALS IN SINGLE SCREW EXTRUDERS
DE2924317A1 (en) * 1979-06-15 1980-12-18 Berstorff Gmbh Masch Hermann TWO-STAGE EXTRACTION DEVICE
DE3042427A1 (en) * 1980-11-11 1982-05-19 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Twin screw thermoplastics extruder having threadless zone - with twelve throttle pins in transverse plane to vary flow cross section
DE3220575A1 (en) * 1982-06-01 1983-12-01 Uniroyal Englebert Reifen GmbH, 5100 Aachen MIXER FOR PLASTIC MEASURES
DE3613612A1 (en) * 1985-04-30 1986-11-06 Gumix S.A., Barcelona TURBOMIC EXTRUSION
DE3534097A1 (en) * 1985-09-25 1987-04-02 Krupp Gmbh Screw extruder
DE3816422A1 (en) * 1988-05-13 1989-11-16 Krupp Gmbh Pin extruder
EP1495847A1 (en) * 2003-05-05 2005-01-12 Gerold Barth Screw for a communication apparatus
DE102016122277A1 (en) 2016-11-18 2018-05-24 Troester Gmbh & Co. Kg Pin-extruder

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH220550A (en) * 1939-02-06 1942-04-15 Liguna S A Method and apparatus for the continuous production of profiles of molten or pasty materials, in particular of plastics.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH220550A (en) * 1939-02-06 1942-04-15 Liguna S A Method and apparatus for the continuous production of profiles of molten or pasty materials, in particular of plastics.

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1245584B (en) * 1960-08-22 1967-07-27 Plastus S A Injection or compression head on the conveyor or plasticizing cylinder of a machine that processes plastic or plasticizable materials
DE1155232B (en) * 1960-12-06 1963-10-03 Gerhard Kestermann Zahnraeder Screw extrusion press for processing thermoplastics
DE2235784A1 (en) * 1972-07-21 1974-01-31 Uniroyal Ag METHOD AND DEVICE FOR PROCESSING HIGHLY VISCOSE MATERIALS IN SINGLE SCREW EXTRUDERS
DE2924317A1 (en) * 1979-06-15 1980-12-18 Berstorff Gmbh Masch Hermann TWO-STAGE EXTRACTION DEVICE
DE3042427A1 (en) * 1980-11-11 1982-05-19 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Twin screw thermoplastics extruder having threadless zone - with twelve throttle pins in transverse plane to vary flow cross section
DE3220575A1 (en) * 1982-06-01 1983-12-01 Uniroyal Englebert Reifen GmbH, 5100 Aachen MIXER FOR PLASTIC MEASURES
DE3613612A1 (en) * 1985-04-30 1986-11-06 Gumix S.A., Barcelona TURBOMIC EXTRUSION
DE3534097A1 (en) * 1985-09-25 1987-04-02 Krupp Gmbh Screw extruder
DE3816422A1 (en) * 1988-05-13 1989-11-16 Krupp Gmbh Pin extruder
EP1495847A1 (en) * 2003-05-05 2005-01-12 Gerold Barth Screw for a communication apparatus
DE102016122277A1 (en) 2016-11-18 2018-05-24 Troester Gmbh & Co. Kg Pin-extruder

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