DE870896C - Mixing and kneading machine for plastic masses - Google Patents
Mixing and kneading machine for plastic massesInfo
- Publication number
- DE870896C DE870896C DEE3163A DEE0003163A DE870896C DE 870896 C DE870896 C DE 870896C DE E3163 A DEE3163 A DE E3163A DE E0003163 A DEE0003163 A DE E0003163A DE 870896 C DE870896 C DE 870896C
- Authority
- DE
- Germany
- Prior art keywords
- conveyor screws
- conveyor
- axis
- screws
- pipe
- 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
Links
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
- B30B11/243—Extrusion presses; Dies therefor using screws or worms using two or more screws working in the same chamber
-
- 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
- B29B7/485—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 with three or more shafts provided with 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
- B29C48/03—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
-
- 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
- B29C48/425—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 using three or more 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
- B29C48/395—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
- B29C48/435—Sub-screws
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)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
Misch- und Knetmaschine für plastische Massen Es gibt zahlreiche Misch- und Knetmaschinen für plastische oder ähnliche Massen, die aus einem Rohr mit erwärmtem Mantel bestehen und bei denen sich in diesem Rohr eine Fc'rderschraube dreht, die die Masse in Richtung auf die Austrittsött'nung der Maschine weiterbewegt.Mixing and kneading machine for plastic masses There are numerous mixed and kneading machines for plastic or similar masses made from a tube with heated Coat exist and in which a screw rotates in this tube that the mass is moved on in the direction of the outlet of the machine.
Infolge der Erwärmung wird die Masse klebrig und klebt mehr oder weniger stark an der Förderschraube; um diese Unzulänglichkeit zu vermeiden, wurde bereits vorgeschlagen, eine oder mehrere Hilfsschrauben anzubringen, die in die Fö,rderschraube so eingreifen, daß deren Gänge gereinigt werden. As a result of the heating, the mass becomes sticky and more or less sticky less strong on the conveyor screw; in order to avoid this inadequacy, was already proposed to attach one or more auxiliary screws that are in the Engage the conveyor screw so that its passages are cleaned.
Alle diese bekannten Systeme haben jedoch den Nachteil, daß sie einen zu großen und dazu noch veränderlichen Abstand zwischen dem Rohrmantel und der in der Mitte liegenden Förderschraube frei lassen, so daß sich die vom Rohrmantel abgegebene Wärme nur ungleichmäßig über die Masse verteilt; außerdem ergeben sich durch ungenügende Durchmischung Unregelmäßigkeiten im Gefüge der Masse. However, all of these known systems have the disadvantage that they have a the distance between the pipe jacket and the in leave the middle of the conveyor screw free so that the Heat only unevenly distributed over the mass; also result from insufficient Mixing irregularities in the structure of the mass.
Die Erfindung befaßt sich mit Verbesserungen an Afisch- und Knetmaschinen für die angegebenen Nassen, insbesondere thermoplastischen Massen, dank deren eine gleichmäßige Temperaturverteilung und eine viel kräftigere Durchmischung der Masse erzielt wird. Außerdem wird durch den viel höheren Wirkungsgrad Energie eingespart. The invention is concerned with improvements to fishmaking and kneading machines for the specified wet, in particular thermoplastic masses, thanks to their one even temperature distribution and a much more vigorous mixing of the mass is achieved. In addition, the much higher degree of efficiency saves energy.
Erfindungsgemäß sind in einem Rohr mit geheiztem Mantel vier Förderschrauben symmetrisch zur Achse des Rohres angebracht; Schraubengröße und Gewinde sind so bemessen, daß, jede der vier Förderschrauben in je zwei Nachbarschrauben so eingreift, daß die Wendel der einen Förderschraube die Wendellücken der benachbarten Förderschrauben nahezu ganz ausfüllen, so daß die Masse zu einem wesentlichen Teil in der Mittelachse zwischen den vier Förderschrauben vorwärts be- wegt wird; die Förderschrauben drehen sich so um ihre Achsen, daß je zwei ineinandergreifende Förderschrauben. entgegengesetzten Drehsinn haben. According to the invention there are four conveyor screws in a tube with a heated jacket mounted symmetrically to the axis of the pipe; Screw size and thread are like that dimensioned so that each of the four conveyor screws engages in two neighboring screws so that that the helix of one conveyor screw the helical gaps of the adjacent conveyor screws fill almost completely, so that the mass is to a large extent in the central axis move forward between the four conveyor screws is turned away; the conveyor screws rotate around their axes so that two interlocking conveyor screws. have opposite sense of rotation.
Die Förderschrauben sind vorzugsweise zylindrisch, und ihre Achsen liegen parallel zur Rohrachse. The feed screws are preferably cylindrical, and their axes lie parallel to the pipe axis.
Erfindungsgemäß stimmt der Austrittsquerschnitt mit dem Querschnitt überein, der innerhalb des Rohres für die Masse zur Verfügung steht. According to the invention, the exit cross-section agrees with the cross-section which is available for the mass inside the pipe.
Zum besseren Verständnis wird im folgenden die Erfindung an Hand eines Ausführungsbeispieles und der Zeichnung erklärt. For a better understanding, the invention is based on the following an embodiment and the drawing explained.
In den Zeichnungen bedeutet Fig. I einen ?eilschnitt entlang der Rohrachse, Fig. 2 einen schematischen Querschnitt des Rohres, Fig. 3 einen in vergrößertem Maßstab gezeichneten Ausschnitt, der zwei ineinandergreifende Förderschrauben zeigt. In the drawings, FIG. 1 is a partial section along FIG Tube axis, FIG. 2 shows a schematic cross section of the tube, FIG. 3 shows an enlarged Section drawn to scale showing two interlocking conveyor screws.
Erfindungsgemäß sind symmetrisch zur Achse eines zylindrischen Rohres I, dessen Wände 2 mittels einer der üblichen Vorrichtungen geheizt sind, vier Förderschrauben 3,.4, 5, 6 derart angebracht, daß sich die gegenübeHiegenden Förderschrauben 4 und 6 im Uhrzeigersinn und die sich gegenüiberliegenden F'orderschrauben 3 und 5 im Gegenuhrzeigersinn drehen. Benachbarte Förderschrauben drehen sich also gegeneinander, wobei die Abmessungen von Schraubenkörper. und Gewinde so gewählt sind, daß die Förderschrauben vollkommen ineinandergreifen. Die bei anderen, bekannten Systemen vorhandene mittlere Förderschraube fiälllt also hier fort. In der Mitte zwischen den vier Förderschrauben bleibt ein Gang frei, durch den die Masse von jeder der vier Förderschrauben vorwärts bewegt wird, während sie gleichzeitig infolge der entgegengesetzten Drehrichtung benachbarter Fiörderschrauben dauernd ungerührt und durchgemischt wird. According to the invention are symmetrical to the axis of a cylindrical tube I, the walls 2 of which are heated by means of one of the usual devices, four conveyor screws 3, .4, 5, 6 attached in such a way that the opposite conveyor screws 4 and 6 clockwise and the opposing conveyor screws 3 and 5 in the Turn counterclockwise. Adjacent conveyor screws rotate against each other, being the dimensions of screw body. and threads are chosen so that the The conveyor screws mesh perfectly. The other known systems The existing central conveyor screw is therefore omitted here. In the middle between the four conveyor screws a passage remains free through which the mass of each of the four conveyor screws is moved forward while simultaneously as a result of the opposite direction of rotation of adjacent conveyor screws permanently unmoved and is mixed.
Zwischen den Förderschrauhen und dem Rohrmantel liegen vier Außengänge mit im wesentlichen dreieckigem Querschnitt, in denen sich die Masse ebenfalls nach vorn bewegt und gleichzeitig von den Förderschrauben kräftig durchmischt wird. There are four external passages between the conveyor screws and the pipe jacket with a substantially triangular cross-section, in which the mass is also according to moved forward and at the same time vigorously mixed by the conveyor screws.
Der durch einen Flüllltrichter 7 eingeführte Stoff wird also von den Förderschrauben erfaßt und zum Ausgang der Maschine befördert. Infolge ihrer exzentrischen Anordnung vermitteln die vier Fo"rderschrauben einen besonders wirksamen und andauernden Wiä;rmeaustausch mit der durch den Mittelgang fließenden Masse. Die Erfahrung hat gezeigt, daß mit einer gemäß der Erfindung gebauten Maschine gleichzeitig eine viel gleichmäßigere Erwärmung und eine viel kräftigere Durchmischung der Masse erzielt werden.The substance introduced through a filling funnel 7 is therefore of the Detected conveyor screws and conveyed to the exit of the machine. As a result of their eccentric Arrangement give the four conveyor screws a particularly effective and lasting Heat exchange with the mass flowing through the central aisle. The experience has shown that with a machine built according to the invention a lot at the same time more even heating and a much more vigorous mixing of the mass is achieved will.
In dem in der Zeichnung wiedergegebenen Ausführungsbeispiel ist das Rohr I zylindrisch, ebenso die Förderschrauben 3, 4, 5, 6, die sich um zur Achse des Rohres I parallele Achsen S drehen. Man könnte auch ein konisches Rohr benutzen, in dem dann auch die Förderschrauben konisch sein müßten und sich um Achsen drehen wärden, die mit der Rohrachse einen Winkel bilden. In the embodiment shown in the drawing, this is Tube I cylindrical, as do the feed screws 3, 4, 5, 6, which turn to the axis of the pipe I parallel axes S rotate. You could also use a conical tube, in which then the conveyor screws would also have to be conical and rotate about axes that form an angle with the pipe axis.
Fig. 3 zeigt, wie benachbarte Förderschrauben ineinander eingreifen. Für dietFiorderschrlauben ist ein zylindrisch-konisches Gewinde g votrgesehen, das sich als besonders wirksam erwiesen hat. Fig. 3 shows how adjacent conveyor screws intermesh. A cylindrical-conical thread is intended for the has been found to be particularly effective.
Es ist bereits festgestellt worden, daß eine gemäß der Erfindung gebaute Maschine am Ende des Rohres eine Mischung ausgibt, die viel kompakter ist, als die Endmischung anderer Maschinen. Deshalb ist es bei der Erfindung nicht nötig, die Ausgangsöffnung der Maschine trichterförmig zu verengen, wie es bei den bekannten Maschinen der Fall ist. Die Ausgangsöffnung, die nicht in die Zeichnung aufgenommen wurde, hat den gleichen konstanten Querschnitt, wie er im Rohr für die Masse zur Verfügung steht. Dank dieser Besonderheit ist der Wirkungsgrad ein er gemäß der Erfindung gebauten Maschine wesentlich höher im Vergleich zu dem der bekannten Maschinen, bei denen man der Austrittsöffnung eine konische Form geben muß, um' die Mischung kompakter zu machen. It has already been found that one according to the invention built machine outputs a mixture at the end of the pipe that is much more compact, than the final mix of other machines. Therefore it is not necessary with the invention, to narrow the outlet opening of the machine in a funnel shape, as is the case with the known Machines is the case. The exit opening not included in the drawing has the same constant cross-section as it is in the pipe for the mass Available. Thanks to this peculiarity, the efficiency is according to the The machine built in accordance with the invention is much higher than that of the known machines, where you have to give the outlet opening a conical shape to 'the mixture to make it more compact.
Die Erfindung beschränkt sich nicht auf die hier beschriebenen Ausführungsbeispiele, sondern umfaßt alle gleichwertigen Ausführungsformen. Besonders kann an die Stelle des für die Förderschrauben angegebenen Gewindes jedes andere Gewinde treten, durch das ein gutes Ineinandergreifen der Förderschrauben sichergestellt wird. The invention is not limited to the exemplary embodiments described here, but includes all equivalent embodiments. Especially can take the place of the thread specified for the conveyor screws, step through every other thread that a good interlocking of the conveyor screws is ensured.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE492925A BE492925A (en) | 1949-12-23 | 1949-12-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE870896C true DE870896C (en) | 1953-03-19 |
Family
ID=32315104
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEE3163A Expired DE870896C (en) | 1949-12-23 | 1950-12-23 | Mixing and kneading machine for plastic masses |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE492925A (en) |
DE (1) | DE870896C (en) |
FR (1) | FR1030069A (en) |
GB (1) | GB691135A (en) |
LU (1) | LU30478A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE533182A (en) * | 1953-11-13 | 1900-01-01 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH243168A (en) * | 1944-03-30 | 1946-06-30 | Lavorazione Mat Plast | Kneading and extrusion machine for thermoplastics. |
CH245759A (en) * | 1943-04-30 | 1946-11-30 | Lavorazione Mat Plast | Extrusion press for pasty material. |
US2508495A (en) * | 1947-06-25 | 1950-05-23 | Raymond Wampach | Apparatus for extruding plastic materials |
-
1949
- 1949-12-23 BE BE492925A patent/BE492925A/xx unknown
-
1950
- 1950-12-21 LU LU30478D patent/LU30478A1/xx unknown
- 1950-12-22 FR FR1030069D patent/FR1030069A/en not_active Expired
- 1950-12-23 DE DEE3163A patent/DE870896C/en not_active Expired
- 1950-12-27 GB GB31381/50A patent/GB691135A/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH245759A (en) * | 1943-04-30 | 1946-11-30 | Lavorazione Mat Plast | Extrusion press for pasty material. |
CH243168A (en) * | 1944-03-30 | 1946-06-30 | Lavorazione Mat Plast | Kneading and extrusion machine for thermoplastics. |
US2508495A (en) * | 1947-06-25 | 1950-05-23 | Raymond Wampach | Apparatus for extruding plastic materials |
Also Published As
Publication number | Publication date |
---|---|
FR1030069A (en) | 1953-06-09 |
BE492925A (en) | 1950-01-14 |
GB691135A (en) | 1953-05-06 |
LU30478A1 (en) | 1952-07-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE1454851C2 (en) | Continuously working mixer for plastic materials | |
EP0728066A1 (en) | Multi-shaft continuously operating mixer for mixing plastifiable materials | |
DE2719095A1 (en) | SCREW PRESS FOR THE PROCESSING OF PLASTICS AND RUBBER AND PLASTIC MASS | |
DE1037118B (en) | Screw press for processing thermoplastic and similar materials | |
CH411798A (en) | Method for adapting the screw of a mixing and kneading device to the material to be processed and device for carrying out the method | |
DE9211567U1 (en) | Device for the on-site production of pumpable mortar masses | |
DE1918567A1 (en) | Screw plasticiser with variable pitch screw | |
DE2210735B2 (en) | Honzontal Ruhrwerk for a cylindrical container of great length | |
DE870896C (en) | Mixing and kneading machine for plastic masses | |
DE1557167C3 (en) | Device for continuous mixing and plasticizing, in particular of rubber and plastic compounds | |
DE2918519C2 (en) | ||
DE1190439B (en) | Device for loosening, mixing, emulsifying, homogenizing, etc. Like. Mixtures of substances that contain poorly soluble solid and liquid components | |
DE648843C (en) | Processing machine for chocolate masses | |
DE1233831B (en) | Device for the continuous mixing of several substances | |
DE828483C (en) | Press for squeezing liquid out of a liquid-containing mass, e.g. for squeezing oil and water from cooked herring mass | |
DE2953699C2 (en) | Mixers, especially concrete mixers | |
DE1813219A1 (en) | Screw conveyor | |
AT303592B (en) | GIPSMOERTEL MANUFACTURING AND SUPPORTING MACHINE | |
DE1291185B (en) | Machine for mixing and conveying bulk goods | |
DE871424C (en) | Bunker for goods that can be poured with a rotating discharge screw conveyor | |
DE1810193A1 (en) | Device for the continuous cooling of dried materials in the form of flakes or grains, in particular of >> chips << of synthetic polyamide materials, etc. | |
DE720858C (en) | Vibrating mill for grinding all kinds of goods | |
DE1501370A1 (en) | Shaft-shaped heat exchanger | |
DE3228388C2 (en) | ||
DE891672C (en) | Allocation device |