EP0422272B1 - Mixing and kneading device - Google Patents

Mixing and kneading device Download PDF

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Publication number
EP0422272B1
EP0422272B1 EP89118945A EP89118945A EP0422272B1 EP 0422272 B1 EP0422272 B1 EP 0422272B1 EP 89118945 A EP89118945 A EP 89118945A EP 89118945 A EP89118945 A EP 89118945A EP 0422272 B1 EP0422272 B1 EP 0422272B1
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EP
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Prior art keywords
kneading
camplates
mixing
kneading blocks
blocks
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EP89118945A
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German (de)
French (fr)
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EP0422272B2 (en
EP0422272A1 (en
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Josef A. Blach
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Individual
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Individual
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Priority to AT89118945T priority Critical patent/ATE101541T1/en
Priority to DE89118945T priority patent/DE58907012D1/en
Priority to EP89118945A priority patent/EP0422272B2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/73—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with rotary discs
    • B01F27/731—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with rotary discs with two or more parallel shafts provided with perpendicularly mounted discs, e.g. lens shaped, one against the other on each shaft and in circumferential contact with the discs on the other shafts, e.g. for cleaning

Definitions

  • the invention relates to a device for mixing or kneading liquid, viscous, plastic, powdery or granular substances, which consists of at least two kneading blocks arranged on mutually parallel shafts in a housing and rotating in the same direction, each of which consists of one behind the other and in the axial direction
  • the circumferential direction consists of cam disks arranged offset in the manner of a spiral staircase, the outline of the cam disks being formed from circular arcs.
  • Such a device is known (DE - C - 813 154). With these devices, there is a difficulty in designing the kneading blocks in such a way that an optimum drive energy of the kneading blocks is implemented in kneading and mixing work. If the kneading and mixing process does not consistently convert enough drive energy into kneading and mixing work, then there is insufficient use of the possibilities of the kneading blocks.
  • the technical problem underlying the invention is to design the kneading blocks in such a way that an optimal amount of drive energy is converted into kneading and mixing work and the material volume is processed evenly.
  • the kneading blocks should be constructed in such a way that the gaps through which the material is pressed during kneading and mixing can be adapted to the process task with simple means.
  • the amount of material removed and the size of the offset angle between the cam disks allow the height and length of the passage openings to be optimized, so that during the kneading and mixing process they provide the kneaded and mixed material with an optimal resistance, which is then implemented in kneading and mixing work, that neither an above-average wear of the kneading blocks nor a partial mechanical-thermal overstressing of the material occurs.
  • the kneading block shown in Figures 1 a and 1 b consists of a total of five cams 1, 2, 3, 4 and 5.
  • Each cam has a lens-like shape, and they are composed such that the kneading block is centered on a (not shown) Shaft can be arranged.
  • the lens-like shape of the cam discs is achieved in that the contour of the cam discs consists of the contour curves 6 and 7.
  • the outline curve is an arc.
  • the outline curve can also consist of several arcs.
  • the tips are blunted such that the blunt ends of the cam disks are also formed by circular arcs 8 and 9.
  • the cam disks 1 to 5 arranged one behind the other are each offset by 45 angular degrees, ie. H. the offset angle is 450.
  • the kneading block has a spiral-like shape and between two ends of two adjacent cams there is an axial passage opening through which the material is conveyed.
  • Kneading blocks are predominantly formed in one piece in production machines, since kneading blocks composed of individual disks are more susceptible to breakage and there is a risk of installation errors.
  • the kneading blocks can also be constructed from individual slices.
  • the height and length of the shear gap is set by the disc thickness and the offset angle between the discs.
  • the kneading block shown in Figures 2 a and 2 b differs from the known kneading block according to Figures 1 a and 1 b in that at the ends of the cams 2 to 4, namely where they collide with the previous cam a more or less large volume has been removed, for example ground or milled.
  • the removed volumes are designated by 10 in FIGS. 2a and 2b.
  • the removed volumes can have any shape; in the exemplary embodiment shown in FIGS. 2 a and 2 b, part of the ends of the cam disks are ground obliquely, to the extent of the outer contour of the preceding cam disk.
  • the position of the removed volumes shown applies in the event that the kneading block rotates in the direction shown by arrow 11 in FIG. 2 a and the conveying direction 12 according to FIG. 2 b results.
  • the offset angle is 30 ° .
  • three further cam disks can be connected to the right end of the kneading block, the outline of which corresponds to the mirror image of the cam disks 3, 2 and 1.
  • FIGS. 2a and 2b allow the drive energy to be converted by the kneading block in mixing and kneading work to be set in a simple manner. Since a mixing and kneading device usually has several axially consecutive kneading blocks, with otherwise unchanged boundary conditions such as speed, temperature, material and. Like., An optimization of the kneading blocks can be achieved solely by a more or less large volume removed from the kneading blocks.
  • FIG. 3 the kneading block shown in one piece in FIG. 2b is shown disassembled for reasons of better understanding. From this representation it becomes clear what effect the removal of the volumes 10 has on the contour of the cam disks 1 to 4.
  • Fig. 3 shows that the cams 1 to 4 are no longer a flat lenticular plate, but that the lenticular outline continues in the axial direction. This is illustrated in FIG. 3 by the extensions 17.
  • FIG. 4 shows the usual arrangement of two kneading blocks with the cams 1 to 4 on two shafts (not shown) which are arranged parallel to one another and which are arranged in the housing 18 so as to be rotatable in the same direction.
  • FIGS. 5 a, 5 b and 6 Another embodiment of the invention is shown in Figures 5 a, 5 b and 6.
  • this kneading block also has cams 1 to 5, as have already been shown with reference to FIGS. 1 a and 1 b.
  • cam disks and intermediate disks which are arranged one behind the other or one next to the other in FIGS. 5 a and 5 b are shown individually in plan view in FIG. 6.
  • the cam disks 1 to 5 and the intermediate disks 13 to 16 have the same thickness d, ie. H. the ratio of the cam plate thickness to the intermediate plate thickness is 1: 1. It can vary between 1: 3 and 3: 1.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

To enable the kneading blocks in screw machines for kneading and mixing of solid, liquid or highly viscous materials to be sized in such a way that an optimum of drive energy can be converted into kneading and mixing work, defined volumes have been removed from the cam discs of the kneading blocks. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum Mischen bzw. Kneten von flüssigen, zähflüssigen, plastischen, pulverförmigen oder körnigen Stoffen, welche aus wenigstens zwei, auf zueinander parallelen Wellen in einem Gehäuse angeordneten und gleichsinnig drehenden Knetblöcken besteht, von denen jeder aus in Achsrichtung hintereinander und in Umfangsrichtung wendeltreppenartig gegeneinander versetzt angeordneten Kurvenscheiben besteht, wobei der Umriß der Kurvenscheiben aus Kreisbögen gebildet ist.The invention relates to a device for mixing or kneading liquid, viscous, plastic, powdery or granular substances, which consists of at least two kneading blocks arranged on mutually parallel shafts in a housing and rotating in the same direction, each of which consists of one behind the other and in the axial direction The circumferential direction consists of cam disks arranged offset in the manner of a spiral staircase, the outline of the cam disks being formed from circular arcs.

Eine derartige Vorrichtung ist bekannt ( DE - C - 813 154 ). Bei diesen Vorrichtungen besteht die Schwierigkeit, die Knetblöcke derart zu gestalten, daß ein Optimum der Antriebsenergie der Knetblöcke in Knet- und Mischarbeit umgesetzt wird. Wenn beim Knet- und Mischvorgang nicht ausreichend Antriebsenergie gleichmäßig in Knet- und Mischarbeit umgesetzt wird, dann liegt eine ungenügende Ausnutzung der Möglichkeiten der Knetblöcke vor. Wird dagegen zuviel der Antriebsenergie in Knet- und Mischarbeit umgesetzt, dann kann es auf Dauer zu einem überdurchschnittlichen örtlichen Verschleiß der Knetblöcke und/oder zu einer partiellen Überbeanspruchung des bearbeiteten Stoffes kommen, welches mehr oder weniger große Qualitätseinbußen nach sich zieht.Such a device is known (DE - C - 813 154). With these devices, there is a difficulty in designing the kneading blocks in such a way that an optimum drive energy of the kneading blocks is implemented in kneading and mixing work. If the kneading and mixing process does not consistently convert enough drive energy into kneading and mixing work, then there is insufficient use of the possibilities of the kneading blocks. If, on the other hand, too much of the drive energy is converted into kneading and mixing work, then in the long term there may be an above-average local wear of the kneading blocks and / or a partial overuse of the processed material, which results in more or less great quality losses.

Das der Erfindung zugrunde liegende technische Problem besteht darin, die Knetblöcke derart zu gestalten, daß eine optimale Menge der Antriebsenergie in Knet- und Mischarbeit umgesetzt wird und eine gleichmäßige Bearbeitung des Stoffvolumens stattfindet. Die Knetblöcke sollen derart aufgebaut sein, daß die Spalte, durch die der Stoff beim Kneten und Mischen hindurchgepreßt wird, mit einfachen Mitteln an die Verfahrensaufgabe angepaßt werden können.The technical problem underlying the invention is to design the kneading blocks in such a way that an optimal amount of drive energy is converted into kneading and mixing work and the material volume is processed evenly. The kneading blocks should be constructed in such a way that the gaps through which the material is pressed during kneading and mixing can be adapted to the process task with simple means.

Dieses technische Problem ist erfindungsgemäß dadurch gelöst, daß die Durchlaßöffnung zwischen den Kurvenscheiben durch einen Werkstoffabtrag an wenigstens einer Kurvenscheibe vergrößert ist.This technical problem is solved according to the invention in that the passage opening between the cams is enlarged by removing material from at least one cam.

Durch den Werkstoffabtrag an und die Größe des Versatzwinkels zwischen den Kurvenscheiben können Höhe und Länge der Durchlaßöffnungen optimiert werden, so daß sie während des Knet-und Mischvorganges dem gekneteten und gemischten Stoff einen optimalen Widerstand entgegensetzen, der derart in Knet- und Mischarbeit umgesetzt wird, daß weder ein überdurchschnittlicher Verschleiß der Knetblöcke noch eine partielle mechanisch-thermische Überbeanspruchung des Stoffes eintritt.The amount of material removed and the size of the offset angle between the cam disks allow the height and length of the passage openings to be optimized, so that during the kneading and mixing process they provide the kneaded and mixed material with an optimal resistance, which is then implemented in kneading and mixing work, that neither an above-average wear of the kneading blocks nor a partial mechanical-thermal overstressing of the material occurs.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Ansprüchen 2 bis 5 enthalten. Sie ist nachstehend anhand der Figuren 1 bis 6 erläutert. Es zeigen :

  • Fig. 1 a die Draufsicht auf die Stirnseite eines bekannten Knetblockes,
  • Fig. 1 b die Seitenansicht des Knetblockes gemäß Fig. 1 a
  • Fig. 2 a die Draufsicht auf die Stirnseite eines Ausführungsbeispieles des erfindungsgemäßen Knetblockes,
  • Fig. 2 b die Seitenansicht des Knetblockes gemäß Fig. 2 a,
  • Fig. 3 die Seitenansicht der einzelnen Kurvenscheiben des Knetblockes gemäß Fig. 2 a
  • Fig. 4 die Draufsicht auf die Stirnseite von zwei, in einem Gehäuse angeordneten, gleichsinnig drehenden Knetblöcken,
  • Fig. 5 a die Draufsicht auf die Stirnseite eines anderen Ausführungsbeispieles des erfindungsgemäßen Knetblokkes,
  • Fig. 5 b die Seitenansicht des Knetblockes gemäß Fig. 5 a und
  • Fig. 6 die Umrisse der Kurvenscheiben und Zwischenscheiben des Knetblockes gemäß den Figuren 5 a und 5 b.
Advantageous embodiments of the invention are contained in claims 2 to 5. It is explained below with reference to FIGS. 1 to 6. Show it :
  • 1a is a plan view of the end face of a known kneading block,
  • 1 b shows the side view of the kneading block according to FIG. 1 a
  • 2a shows a top view of the end face of an embodiment of the kneading block according to the invention,
  • 2 b shows the side view of the kneading block according to FIG. 2 a,
  • 3 shows the side view of the individual cams of the kneading block according to FIG. 2a
  • 4 shows the top view of the end face of two kneading blocks rotating in the same direction, arranged in a housing,
  • 5 a is a top view of the end face of another embodiment of the kneading block according to the invention,
  • 5 b shows the side view of the kneading block according to FIG. 5 a and
  • Fig. 6 shows the outline of the cams and washers of the kneading block according to Figures 5 a and 5 b.

Der in den Figuren 1 a und 1 b dargestellte Knetblock besteht aus insgesamt fünf Kurvenscheiben 1, 2, 3, 4 und 5. Jede Kurvenscheibe besitzt eine linsenähnlich geformte Gestalt, und sie sind derart zusammengesetzt, daß der Knetblock zentrisch auf einer ( nicht gezeigten ) Welle angeordnet werden kann. Die linsenähnlich geformte Gestalt der Kurvenscheiben wird dadurch erreicht, daß der Umriß der Kurvenscheiben aus den Umrißkurven 6 und 7 besteht. Im einfachsten Fall ist die Umrißkurve ein Kreisbogen. Die Umrißkurve kann aber auch aus mehreren Kreisbögen bestehen. Bei den gezeigten Kurvenscheiben 1 bis 5 sind die Spitzen derart abgestumpft, daß die stumpfenEnden der Kurvenscheiben ebenfalls von Kreisbögen 8 und 9 gebildet sind.The kneading block shown in Figures 1 a and 1 b consists of a total of five cams 1, 2, 3, 4 and 5. Each cam has a lens-like shape, and they are composed such that the kneading block is centered on a (not shown) Shaft can be arranged. The lens-like shape of the cam discs is achieved in that the contour of the cam discs consists of the contour curves 6 and 7. In the simplest case, the outline curve is an arc. The outline curve can also consist of several arcs. In the cam disks 1 to 5 shown, the tips are blunted such that the blunt ends of the cam disks are also formed by circular arcs 8 and 9.

Wie besonders aus Fig. 1 a deutlich zu erkennen ist, sind die hintereinander angeordneten Kurvenscheiben 1 bis 5 jeweils um 45 Winkelgrade gegeneinander versetzt, d. h. der Versatzwinkel beträgt 450. Auf diese Weise weist der Knetblock eine wendeltreppenartige Gestalt auf und zwischen jeweils zwei Enden zweier benachbarter Kurvenscheiben ist eine axiale Durchlaßöffnung vorhanden, durch welche der Stoff hindurch gefördert wird.As can be seen particularly clearly from FIG. 1 a, the cam disks 1 to 5 arranged one behind the other are each offset by 45 angular degrees, ie. H. the offset angle is 450. In this way, the kneading block has a spiral-like shape and between two ends of two adjacent cams there is an axial passage opening through which the material is conveyed.

Knetblöcke sind in Produktionsmaschinen vorwiegend einstückig aus gebildet, da aus Einzelscheiben zusammengesetzte Knetblöcke gegenüber Zerbrechen anfälliger sind und die Gefahr von Einbaufehlern besteht. Im Prinzip können die Knetblöcke aber auch aus einzelnen Scheiben aufgebaut sein. Bei den Knetblöcken wird durch die Scheibendicke und den Versatzwinkel zwischen den Scheiben die Höhe und Länge der Scherspalte eingestellt.Kneading blocks are predominantly formed in one piece in production machines, since kneading blocks composed of individual disks are more susceptible to breakage and there is a risk of installation errors. In principle, the kneading blocks can also be constructed from individual slices. In the case of the kneading blocks, the height and length of the shear gap is set by the disc thickness and the offset angle between the discs.

Der in den Figuren 2 a und 2 b gezeigte Knetblock unterscheidet sich von dem bekannten Knetblock gemäß den Figuren 1 a und 1 b dadurch, daß an den Enden der Kurvenscheiben 2 bis 4, nämlich dort, wo sie mit der vorhergehenden Kurvenscheibe zusammenstoßen ein mehr oder weniger großes Volumen abgetragen, beispielsweise abgeschliffen oder abgefräst, worden ist. Die abgetragenen Volumina sind in den Figuren 2 a und 2 b mit 10 bezeichnet. Die abgetragenen Volumina können eine beliebige Gestalt haben; bei dem in den Figuren 2 a und 2 b gezeigten Ausfuhrungsbeispiel ist ein Teil der Enden der Kurvenscheiben schräg abgeschliffen, und zwar bis zur Höhe der Außenkontur der vorhergehenden Kurvenscheibe. Die gezeigte Lage der abgetragenen Volumina gilt für den Fall, daß der Knetblock in der durch den Pfeil 11 in Fig. 2 a gezeigten Richtung dreht und sich dadurch die Förderrichtung 12 gemäß Fig. 2 b ergibt. Bei dem in den Figuren 2 a und 2 b gezeigten Ausführungsbeispiel beträgt der Versatzwinkel 30 ° . Entsprechend dem in Fig. 1 b gezeigten Knetblock können sich am rechten Ende des Knetblockes noch drei weitere Kurvenscheiben anschließen, deren Umriß dem Spiegelbild der Kurvenscheiben 3,2 und 1 entsprechen.The kneading block shown in Figures 2 a and 2 b differs from the known kneading block according to Figures 1 a and 1 b in that at the ends of the cams 2 to 4, namely where they collide with the previous cam a more or less large volume has been removed, for example ground or milled. The removed volumes are designated by 10 in FIGS. 2a and 2b. The removed volumes can have any shape; in the exemplary embodiment shown in FIGS. 2 a and 2 b, part of the ends of the cam disks are ground obliquely, to the extent of the outer contour of the preceding cam disk. The position of the removed volumes shown applies in the event that the kneading block rotates in the direction shown by arrow 11 in FIG. 2 a and the conveying direction 12 according to FIG. 2 b results. In the embodiment shown in Figures 2a and 2b, the offset angle is 30 ° . Corresponding to the kneading block shown in FIG. 1b, three further cam disks can be connected to the right end of the kneading block, the outline of which corresponds to the mirror image of the cam disks 3, 2 and 1.

Durch die anhand der Figuren 2 a und 2 b gezeigten Maßnahme kann die Antriebsenergie, welche durch den Knetblock in Misch- und Knetarbeit umgesetzt werden soll, auf einfache Weise eingestellt werden. Da eine Misch- und Knetvorrichtung in der Regel mehrere axial aufeinanderfolgende Knetblöcke aufweist, kann bei im übrigen unveränderten Randbedingungen, wie Drehzahl, Temperatur, Stoff u. dgl., allein durch ein mehr oder weniger großes abgetragenes Volumen an den Knetblöcken eine Optimierung der Knetblöcke erreicht werden.The measure shown in FIGS. 2a and 2b allows the drive energy to be converted by the kneading block in mixing and kneading work to be set in a simple manner. Since a mixing and kneading device usually has several axially consecutive kneading blocks, with otherwise unchanged boundary conditions such as speed, temperature, material and. Like., An optimization of the kneading blocks can be achieved solely by a more or less large volume removed from the kneading blocks.

In Fig. 3 ist der in Fig. 2 b einstückig dargestellte Knetblock des besseren Verständnisses wegen in Scheiben zerlegt dargestellt. Aus dieser Darstellungsweise wird deutlich, welche Auswirkung die Abtragung der Volumina 10 auf die Kontur der Kurvenscheiben 1 bis 4 hat. Fig. 3 läßt erkennen, daß die Kurvenscheiben 1 bis 4 nicht länger eine ebene linsenförmige Platte sind, sondern daß sich der linsenförmige Umriß in axialer Richtung fortsetzt. In Fig. 3 ist dies durch die Fortsätze 17 verdeutlicht.In FIG. 3 the kneading block shown in one piece in FIG. 2b is shown disassembled for reasons of better understanding. From this representation it becomes clear what effect the removal of the volumes 10 has on the contour of the cam disks 1 to 4. Fig. 3 shows that the cams 1 to 4 are no longer a flat lenticular plate, but that the lenticular outline continues in the axial direction. This is illustrated in FIG. 3 by the extensions 17.

Fig. 4 zeigt die übliche Anordnung von zwei Knetblöcken mit den Kurvenscheiben 1 bis 4 auf zwei parallel zueinander angeordneten ( nicht gezeigten ) Wellen, welche gleichsinnig drehbar in dem Gehäuse 18 angeordnet sind.FIG. 4 shows the usual arrangement of two kneading blocks with the cams 1 to 4 on two shafts (not shown) which are arranged parallel to one another and which are arranged in the housing 18 so as to be rotatable in the same direction.

Eine andere Ausführungsform der Erfindung ist in den Figuren 5 a, 5 b und 6 gezeigt. Wie die Figuren 5 a und 5 b erkennen lassen, besitzt dies er Knetblock ebenfalls Kurvenscheiben 1 bis 5, wie sie bereits anhand der Figuren 1 a und 1 b gezeigt worden sind. Wie jedoch aus Fig. 5 b zu erkennen ist, ist jeweils zwischen zwei Kurvenscheiben, nämlich zwischen 1 und 2, 2 und 3, 3 und 4 sowie 4 und 5 eine Zwischenscheibe 13, 14, 15 und 16 vorhanden, welche einen Umriß aufweisen, welcher der kleinsten gemeinsamen Fläche der beiden benachbarten Kurvenscheiben entspricht.Another embodiment of the invention is shown in Figures 5 a, 5 b and 6. As can be seen in FIGS. 5 a and 5 b, this kneading block also has cams 1 to 5, as have already been shown with reference to FIGS. 1 a and 1 b. However, as can be seen from FIG. 5 b, there is an intermediate disk 13, 14, 15 and 16 between two cams, namely between 1 and 2, 2 and 3, 3 and 4 and 4 and 5, which have an outline, which corresponds to the smallest common area of the two adjacent cams.

Um dies besser zu verdeutlichen sind in Fig. 6 die Kurvenscheiben und Zwischenscheiben, welche in den Figuren 5a und 5 b hinter- bzw. nebeneinander angeordnet sind, einzeln in der Draufsicht gezeigt.In order to clarify this better, the cam disks and intermediate disks which are arranged one behind the other or one next to the other in FIGS. 5 a and 5 b are shown individually in plan view in FIG. 6.

Durch entsprechende Dimensionierung der Kurvenscheiben und Zwischenscheiben kann die gleiche Wirkung erzielt werden, wie mit dem Ausführungsbeispiel gemäß den Figuren 2a und 2 b.By correspondingly dimensioning the cam disks and intermediate disks, the same effect can be achieved as with the exemplary embodiment according to FIGS. 2a and 2b.

Bei dem in den Figuren 5 a und 5 b gezeigten Ausführungsbeispiel weisen die Kurvenscheiben 1 bis 5 und die Zwischenscheiben 13 bis 16 die gleiche Dicke d auf, d. h. das Verhältnis der Kurvenscheibendicke zur Zwischenscheibendicke ist 1:1. Es kann zwischen 1 : 3 und 3 : 1 variieren.In the exemplary embodiment shown in FIGS. 5 a and 5 b, the cam disks 1 to 5 and the intermediate disks 13 to 16 have the same thickness d, ie. H. the ratio of the cam plate thickness to the intermediate plate thickness is 1: 1. It can vary between 1: 3 and 3: 1.

Claims (5)

1. A device for the mixing or kneading respectively, of liquid, viscous, plastic, powdery or granular materials, with said device consisting of at least two kneading blocks disposed on shafts extending parallel in relation to one another within a housing (18 ) and rotating in the same direction, with each of said kneading blocks consisting of camplates ( 1 through 5) disposed one behind the other in the axial direction and staggered in relation to one another like a spiral staircase in the circumferential direction, with the contour of said camplates being formed by circular arcs (6, 7, 8, 9), characterized in that the flow passage opening between two camplates (1 through 5 ) is enlarged by way of a stock removal on at least one of said camplates.
2. A device as claimed in claim 1,
characterized in that one corner of the ends of said camplates ( 1 through 5 ) which freely project toward the outside, is subjected to a stock removal.
3. A device as claimed in claim 1,
characterized in that between two successively following camplates (1 through 5) there is disposed an intermediate plate (13 through 16) having an outer contour which corresponds to the smallest joint surface area of the neighbouring camplates.
4. A device as claimed in claim 3,
characterized in that the thicknesses of both said camplates and said intermediate plates are in a relationship ranging between 1 : 3 and 3 : 1, and are preferably in the ratio of 1 : 1.
5. A device as claimed in claims 1 through 4,
characterized in that said kneading blocks are made in one piece.
EP89118945A 1989-10-12 1989-10-12 Mixing and kneading device Expired - Lifetime EP0422272B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT89118945T ATE101541T1 (en) 1989-10-12 1989-10-12 MIXING AND KNEADING DEVICE.
DE89118945T DE58907012D1 (en) 1989-10-12 1989-10-12 Mixing and kneading device.
EP89118945A EP0422272B2 (en) 1989-10-12 1989-10-12 Mixing and kneading device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP89118945A EP0422272B2 (en) 1989-10-12 1989-10-12 Mixing and kneading device

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Publication Number Publication Date
EP0422272A1 EP0422272A1 (en) 1991-04-17
EP0422272B1 true EP0422272B1 (en) 1994-02-16
EP0422272B2 EP0422272B2 (en) 2001-06-13

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EP89118945A Expired - Lifetime EP0422272B2 (en) 1989-10-12 1989-10-12 Mixing and kneading device

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AT (1) ATE101541T1 (en)
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10122462C1 (en) * 2001-05-09 2002-10-10 3 & Extruder Gmbh Screw extruder has at least three parallel, intermeshing screws and casing with apertures in its side
DE102006052610A1 (en) * 2006-11-08 2008-05-15 Blach Verwaltungs Gmbh & Co. Kg Multi-screw extruder

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4206219A1 (en) * 1992-02-28 1993-09-02 Blach Josef A DEVICE FOR MIXING AND / OR KNOWING MATERIALS
DE19604228C1 (en) * 1996-02-06 1997-09-11 Blach Josef A Multiple kneader unit able to e.g. plasticise, homogenise and incorporate or remove air
EP0788867B1 (en) 1996-02-06 1999-07-07 Josef A. Blach Apparatus for continuous processing of flowable materials
DE19718292A1 (en) * 1997-04-30 1998-11-05 Krupp Werner & Pfleiderer Gmbh Multi-shaft screw machine, in particular two-shaft extruder
DE19847102C1 (en) 1998-10-13 2000-01-05 3 & Extruder Gmbh Machine for continuously working flowing materials
DE19847103C1 (en) * 1998-10-13 1999-10-28 3 & Extruder Gmbh Continuously working fluid material processing machine
DE19860256A1 (en) * 1998-12-24 2000-06-29 Krupp Werner & Pfleiderer Gmbh Two-shaft extruder
DE10207145B4 (en) 2002-02-20 2004-07-15 Blach, Josef A. Device for dispersing and melting flowable materials
DE10233214B4 (en) 2002-07-22 2005-01-27 3+Extruder Gmbh Extruder for continuous processing and / or processing of flowable materials
DE10233213B4 (en) 2002-07-22 2004-09-09 3+Extruder Gmbh extruder
DE102004015366A1 (en) * 2004-03-30 2005-10-20 Berstorff Gmbh Extruder mixing and plasticizing screw for processing plastics and rubber compounds comprises blocks each arranged along screw shaft at different angular position to all other blocks
DE102004052055B4 (en) * 2004-10-26 2014-11-20 Blach Verwaltung Gmbh & Co.Kg extruder
EP2272651B1 (en) * 2009-07-10 2012-05-16 Coperion GmbH Screw machine with dispersive mixing element

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4105637A (en) * 1974-10-11 1978-08-08 Celanese Corporation Process for producing a polyacetal polymer
DE2550969C2 (en) * 1975-11-13 1982-12-16 Josef 7120 Bietigheim Blach Screw machine for homogenizing solid, liquid and viscous materials
DE3412258A1 (en) † 1984-04-02 1985-10-10 Werner & Pfleiderer, 7000 Stuttgart SINGLE-TWIST DOUBLE-SCREW MIXER WITH WHEEL DISC
DE3430885C2 (en) * 1984-08-22 1986-08-21 Rudolf P. 7000 Stuttgart Fritsch Device for the continuous processing of liquids and viscous masses
GB8804313D0 (en) * 1988-02-24 1988-03-23 Apv Plc Improvements in/relating to mixers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10122462C1 (en) * 2001-05-09 2002-10-10 3 & Extruder Gmbh Screw extruder has at least three parallel, intermeshing screws and casing with apertures in its side
DE102006052610A1 (en) * 2006-11-08 2008-05-15 Blach Verwaltungs Gmbh & Co. Kg Multi-screw extruder
DE102006052610B4 (en) * 2006-11-08 2013-04-18 Blach Verwaltungs Gmbh & Co. Kg Multi-screw extruder

Also Published As

Publication number Publication date
ATE101541T1 (en) 1994-03-15
EP0422272B2 (en) 2001-06-13
EP0422272A1 (en) 1991-04-17
DE58907012D1 (en) 1994-03-24

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