CH609948A5 - Mixing, metering or conveying device - Google Patents

Mixing, metering or conveying device

Info

Publication number
CH609948A5
CH609948A5 CH1028176A CH1028176A CH609948A5 CH 609948 A5 CH609948 A5 CH 609948A5 CH 1028176 A CH1028176 A CH 1028176A CH 1028176 A CH1028176 A CH 1028176A CH 609948 A5 CH609948 A5 CH 609948A5
Authority
CH
Switzerland
Prior art keywords
screws
screw
housing
lever
flanks
Prior art date
Application number
CH1028176A
Other languages
German (de)
Inventor
Werner Zimmermann
Kaspar Kuster
Original Assignee
Ciba Geigy 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 Ciba Geigy Ag filed Critical Ciba Geigy Ag
Priority to CH1028176A priority Critical patent/CH609948A5/en
Publication of CH609948A5 publication Critical patent/CH609948A5/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/30Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48Mixing; 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
    • B29B7/484Mixing; 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 two shafts provided with screws, e.g. one screw being shorter than the other
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/72Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices
    • B01F27/721Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices with two or more helices in the same receptacle
    • B01F27/723Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices with two or more helices in the same receptacle the helices intermeshing to knead the mixture
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00Screw or rotary spiral conveyors
    • B65G33/08Screw or rotary spiral conveyors for fluent solid materials
    • B65G33/14Screw or rotary spiral conveyors for fluent solid materials comprising a screw or screws enclosed in a tubular housing
    • B65G33/18Screw or rotary spiral conveyors for fluent solid materials comprising a screw or screws enclosed in a tubular housing with multiple screws in parallel arrangements, e.g. concentric

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Transmission Devices (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

This device has two meshing worms (2, 3) which are rotatably mounted in a common casing. One or preferably both worms are axially adjustable, so that the flanks of the worms can be temporarily brought into mutual contact for cleaning purposes. The adjustment directions of the two worms preferably run counter to one another. Adjustment is by means of a two-armed lever (10) which is mounted between the two worms (pivot 11). <IMAGE>

Description

  

  
 

**WARNUNG** Anfang DESC Feld konnte Ende CLMS uberlappen **.

 



   PATENTANSPRÜCHE
1. Misch-, Dosier- oder Fördervorrichtung mit zwei miteinander kämmenden, in einem Gehäuse drehbar gelagerten Schnecken, deren Flanken zumindest beinahe in gegenseitige Anlage gebracht werden können, dadurch gekennzeichnet, dass zumindest eine der Schnecken axial verstellbar ist.



   2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass beide Schnecken axial verstellbar sind.



   3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die beiden Schnecken derart miteinander gekoppelt sind, dass ihre Verstellungsrichtungen stets gegenläufig sind.



   4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die beiden Schnecken über einen zwischen ihnen schwenkbar gelagerten zweiarmigen Hebel gekoppelt sind, der gleichzeitig zum Verstellen der Schnecken ausgebildet ist.



   Die Erfindung betrifft eine Misch-, Dosier- oder Fördervorrichtung mit zwei miteinander kämmenden, in-einem Gehäuse drehbar gelagerten Schnecken, deren Flanken zumindest beinahe in gegenseitige Anlage gebracht werden können.



   Vorrichtungen dieser Art sind beispielsweise aus der CH-PS 484 366 bekannt. Bei diesen bekannten Vorrichtungen wird die eine Schnecke von Zeit zu Zeit gegenüber der anderen ein wenig verzögert oder beschleunigt, so dass sich die normalerweise im Betrieb nicht berührenden Flanken der Schneckengänge der beiden Schnecken näher kommen und sich dadurch ähnlich wie bei selbstreinigenden Schneckenvorrichtungen reinigen. Dieses Verzögern oder Beschleunigen der Schneckendrehung erfordert einen relativ komplizierten und aufwendigen Antrieb.



   Es hat sich nun gezeigt, das sich derselbe Effekt auch auf wesentlich einfachere Weise erreichen lässt, wenn gemäss der Erfindung zumindest eine der Schnecken axial verstellbar ist.



   Im folgenden wird die Erfindung anhand der Zeichnung näher erläutert. Es zeigen:
Fig. 1 einen Horizontalschnitt durch ein Ausführungsbeispiel,
Fig. 2 eine Seitenansicht derselben in kleinerem Massstab und
Fig. 3 einen Schnitt nach der Linie   III-III    der Fig. 2.



   Der Wärmeaustauscher umfasst darstellungsgemäss ein doppelmanteliges Gehäuse 1 mit einem Einlass la und einem Auslass   lb.    Im Gehäuse sind zwei Schnecken 2 und 3 drehbar und auch axial verstellbar gelagert. Die Schneckenwellen 2a und 3a sind über eine axiale Verschiebung zulassende Kupplungen 4 und 5 mit den Abtriebswellen 6a und 6b eines Getriebes 6 verbunden, welches seinerseits von einem Motor 7 angetrieben wird.



   Auf den aus dem Gehäuse 1 herausragenden Abschnitten der Schneckenwellen 2a und 3a ist je ein Ring 8 drehbar aber axial unverschiebbar angeordnet. Jeder Ring trägt zwei Zapfen 8a, 8b bzw. 9a, 9b, die in entsprechende Langlöcher eines gegabelten Hebels 10 eingreifen. Der Hebel 10 ist um eine in der Mitte zwischen den beiden Schneckenwellen befindlichen Drehpunkt 11 schwenkbar am Gehäuse 1 gelagert und koppelt die beiden Schneckenwellen   bzw.    die Schnecken selbst derart miteinander, dass sie nur gegenläufig axial verschoben werden können. Die Verschiebung der Schnecken erfolgt über einen Spindelantrieb 12, der an einem einseitig verlängerten Arm 10a des Hebels 10 angreift. 

  Durch Verschwenken des Hebels 10 in die eine oder die andere Richtung können wahlweise die vordere oder die hintere Flanke der einen Schnecke mit der hinteren bzw. vorderen Flanke der anderen Schnecke zur Anlage gebracht werden. Die direkte gegenseitige Anlage der Schneckenflanken ist durch nicht dargestellte, die axiale Verstellung begrenzende Mittel vermieden. 



  
 

** WARNING ** Beginning of DESC field could overlap end of CLMS **.

 



   PATENT CLAIMS
1. Mixing, dosing or conveying device with two intermeshing screws rotatably mounted in a housing, the flanks of which can be brought into mutual contact at least almost, characterized in that at least one of the screws is axially adjustable.



   2. Device according to claim 1, characterized in that the two screws are axially adjustable.



   3. Device according to claim 2, characterized in that the two screws are coupled to one another in such a way that their directions of adjustment are always in opposite directions.



   4. Apparatus according to claim 3, characterized in that the two screws are coupled via a two-armed lever which is pivotably mounted between them and which is simultaneously designed for adjusting the screws.



   The invention relates to a mixing, metering or conveying device with two intermeshing screws rotatably mounted in a housing, the flanks of which can at least almost be brought into mutual contact.



   Devices of this type are known from CH-PS 484 366, for example. In these known devices, one screw is from time to time a little slowed down or accelerated compared to the other, so that the flanks of the screw flights of the two screws, which normally do not touch during operation, come closer and thus clean themselves similarly to self-cleaning screw devices. This deceleration or acceleration of the screw rotation requires a relatively complicated and expensive drive.



   It has now been shown that the same effect can also be achieved in a much simpler way if, according to the invention, at least one of the screws is axially adjustable.



   The invention is explained in more detail below with reference to the drawing. Show it:
1 shows a horizontal section through an embodiment,
Fig. 2 is a side view of the same on a smaller scale and
FIG. 3 shows a section along the line III-III in FIG. 2.



   According to the illustration, the heat exchanger comprises a double-jacket housing 1 with an inlet la and an outlet lb. Two screws 2 and 3 are rotatably and axially adjustable in the housing. The worm shafts 2a and 3a are connected to the output shafts 6a and 6b of a transmission 6, which in turn is driven by a motor 7, via clutches 4 and 5 which permit axial displacement.



   A ring 8 is rotatably but axially immovable on each of the sections of the screw shafts 2a and 3a protruding from the housing 1. Each ring carries two pins 8a, 8b or 9a, 9b, which engage in corresponding elongated holes of a forked lever 10. The lever 10 is pivotably mounted on the housing 1 about a fulcrum 11 located in the middle between the two screw shafts and couples the two screw shafts or the screws themselves with one another in such a way that they can only be axially displaced in opposite directions. The screws are displaced by means of a spindle drive 12 which engages an arm 10a of the lever 10 which is extended on one side.

  By pivoting the lever 10 in one direction or the other, the front or the rear flank of one screw can optionally be brought into contact with the rear or front flank of the other screw. The direct mutual contact of the screw flanks is avoided by means which are not shown and which limit the axial adjustment.

 

Claims (1)

PATENTANSPRÜCHE 1. Misch-, Dosier- oder Fördervorrichtung mit zwei miteinander kämmenden, in einem Gehäuse drehbar gelagerten Schnecken, deren Flanken zumindest beinahe in gegenseitige Anlage gebracht werden können, dadurch gekennzeichnet, dass zumindest eine der Schnecken axial verstellbar ist. PATENT CLAIMS 1. Mixing, dosing or conveying device with two intermeshing screws rotatably mounted in a housing, the flanks of which can be brought into mutual contact at least almost, characterized in that at least one of the screws is axially adjustable. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass beide Schnecken axial verstellbar sind. 2. Device according to claim 1, characterized in that the two screws are axially adjustable. 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die beiden Schnecken derart miteinander gekoppelt sind, dass ihre Verstellungsrichtungen stets gegenläufig sind. 3. Device according to claim 2, characterized in that the two screws are coupled to one another in such a way that their directions of adjustment are always in opposite directions. 4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die beiden Schnecken über einen zwischen ihnen schwenkbar gelagerten zweiarmigen Hebel gekoppelt sind, der gleichzeitig zum Verstellen der Schnecken ausgebildet ist. 4. Apparatus according to claim 3, characterized in that the two screws are coupled via a two-armed lever which is pivotably mounted between them and which is simultaneously designed for adjusting the screws. Die Erfindung betrifft eine Misch-, Dosier- oder Fördervorrichtung mit zwei miteinander kämmenden, in-einem Gehäuse drehbar gelagerten Schnecken, deren Flanken zumindest beinahe in gegenseitige Anlage gebracht werden können. The invention relates to a mixing, metering or conveying device with two intermeshing screws rotatably mounted in a housing, the flanks of which can at least almost be brought into mutual contact. Vorrichtungen dieser Art sind beispielsweise aus der CH-PS 484 366 bekannt. Bei diesen bekannten Vorrichtungen wird die eine Schnecke von Zeit zu Zeit gegenüber der anderen ein wenig verzögert oder beschleunigt, so dass sich die normalerweise im Betrieb nicht berührenden Flanken der Schneckengänge der beiden Schnecken näher kommen und sich dadurch ähnlich wie bei selbstreinigenden Schneckenvorrichtungen reinigen. Dieses Verzögern oder Beschleunigen der Schneckendrehung erfordert einen relativ komplizierten und aufwendigen Antrieb. Devices of this type are known from CH-PS 484 366, for example. In these known devices, one screw is from time to time a little slowed down or accelerated compared to the other, so that the flanks of the screw flights of the two screws, which normally do not touch during operation, come closer and thus clean themselves similarly to self-cleaning screw devices. This deceleration or acceleration of the screw rotation requires a relatively complicated and expensive drive. Es hat sich nun gezeigt, das sich derselbe Effekt auch auf wesentlich einfachere Weise erreichen lässt, wenn gemäss der Erfindung zumindest eine der Schnecken axial verstellbar ist. It has now been shown that the same effect can also be achieved in a much simpler way if, according to the invention, at least one of the screws is axially adjustable. Im folgenden wird die Erfindung anhand der Zeichnung näher erläutert. Es zeigen: Fig. 1 einen Horizontalschnitt durch ein Ausführungsbeispiel, Fig. 2 eine Seitenansicht derselben in kleinerem Massstab und Fig. 3 einen Schnitt nach der Linie III-III der Fig. 2. The invention is explained in more detail below with reference to the drawing. Show it: 1 shows a horizontal section through an embodiment, Fig. 2 is a side view of the same on a smaller scale and FIG. 3 shows a section along the line III-III in FIG. 2. Der Wärmeaustauscher umfasst darstellungsgemäss ein doppelmanteliges Gehäuse 1 mit einem Einlass la und einem Auslass lb. Im Gehäuse sind zwei Schnecken 2 und 3 drehbar und auch axial verstellbar gelagert. Die Schneckenwellen 2a und 3a sind über eine axiale Verschiebung zulassende Kupplungen 4 und 5 mit den Abtriebswellen 6a und 6b eines Getriebes 6 verbunden, welches seinerseits von einem Motor 7 angetrieben wird. According to the illustration, the heat exchanger comprises a double-jacket housing 1 with an inlet la and an outlet lb. Two screws 2 and 3 are rotatably and axially adjustable in the housing. The worm shafts 2a and 3a are connected to the output shafts 6a and 6b of a transmission 6, which in turn is driven by a motor 7, via clutches 4 and 5 which permit axial displacement. Auf den aus dem Gehäuse 1 herausragenden Abschnitten der Schneckenwellen 2a und 3a ist je ein Ring 8 drehbar aber axial unverschiebbar angeordnet. Jeder Ring trägt zwei Zapfen 8a, 8b bzw. 9a, 9b, die in entsprechende Langlöcher eines gegabelten Hebels 10 eingreifen. Der Hebel 10 ist um eine in der Mitte zwischen den beiden Schneckenwellen befindlichen Drehpunkt 11 schwenkbar am Gehäuse 1 gelagert und koppelt die beiden Schneckenwellen bzw. die Schnecken selbst derart miteinander, dass sie nur gegenläufig axial verschoben werden können. Die Verschiebung der Schnecken erfolgt über einen Spindelantrieb 12, der an einem einseitig verlängerten Arm 10a des Hebels 10 angreift. A ring 8 is rotatably but axially immovable on each of the sections of the screw shafts 2a and 3a protruding from the housing 1. Each ring carries two pins 8a, 8b or 9a, 9b, which engage in corresponding elongated holes of a forked lever 10. The lever 10 is pivotably mounted on the housing 1 about a fulcrum 11 located in the middle between the two screw shafts and couples the two screw shafts or the screws themselves with one another in such a way that they can only be axially displaced in opposite directions. The screws are displaced by means of a spindle drive 12 which engages an arm 10a of the lever 10 which is extended on one side. Durch Verschwenken des Hebels 10 in die eine oder die andere Richtung können wahlweise die vordere oder die hintere Flanke der einen Schnecke mit der hinteren bzw. vorderen Flanke der anderen Schnecke zur Anlage gebracht werden. Die direkte gegenseitige Anlage der Schneckenflanken ist durch nicht dargestellte, die axiale Verstellung begrenzende Mittel vermieden. **WARNUNG** Ende CLMS Feld konnte Anfang DESC uberlappen**. By pivoting the lever 10 in one direction or the other, the front or the rear flank of one screw can optionally be brought into contact with the rear or front flank of the other screw. The direct mutual contact of the screw flanks is avoided by means which are not shown and which limit the axial adjustment. ** WARNING ** End of CLMS field could overlap beginning of DESC **.
CH1028176A 1976-08-12 1976-08-12 Mixing, metering or conveying device CH609948A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH1028176A CH609948A5 (en) 1976-08-12 1976-08-12 Mixing, metering or conveying device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1028176A CH609948A5 (en) 1976-08-12 1976-08-12 Mixing, metering or conveying device

Publications (1)

Publication Number Publication Date
CH609948A5 true CH609948A5 (en) 1979-03-30

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Family Applications (1)

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CH1028176A CH609948A5 (en) 1976-08-12 1976-08-12 Mixing, metering or conveying device

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3244360A1 (en) * 1982-12-01 1984-06-07 NEMA Maschinenbau Hermann Neumann, 2901 Wiefelstede Conveyor apparatus for supplying a dryer
EP0364754A2 (en) * 1988-09-22 1990-04-25 Metal Finish S.P.A. Process for the production of aluminium sulphate, starting from the residual slimes of plants for the anodic oxidation of aluminium, and pump to convey said slimes
US5333556A (en) * 1989-03-24 1994-08-02 Director Of National Food Research Institute, Ministry Of Agriculture, Forestry And Fisheries Double press screw
DE19856312A1 (en) * 1998-12-07 2000-06-08 Schenck Process Gmbh Twin screw feeder
WO2011105974A1 (en) * 2010-02-26 2011-09-01 Domeks Makine Limited Sirketi Continuous mixing system with rotatable and axially movable screws
CN102658961A (en) * 2012-05-05 2012-09-12 李勇 Self-cleaning device capable of helically conveying adhesive or scaling-easy powdery materials
CN103446951A (en) * 2013-09-18 2013-12-18 江苏通用机械设备有限公司 Deslagging screw rod device
CN107572198A (en) * 2017-10-20 2018-01-12 佛山市金银河智能装备股份有限公司 A kind of powder micro-measurement screw rod based on servo-drive

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3244360A1 (en) * 1982-12-01 1984-06-07 NEMA Maschinenbau Hermann Neumann, 2901 Wiefelstede Conveyor apparatus for supplying a dryer
EP0364754A2 (en) * 1988-09-22 1990-04-25 Metal Finish S.P.A. Process for the production of aluminium sulphate, starting from the residual slimes of plants for the anodic oxidation of aluminium, and pump to convey said slimes
EP0364754A3 (en) * 1988-09-22 1990-09-05 Metal Finish S.P.A. Process for the production of aluminium sulphate, starting from the residual slimes of plants for the anodic oxidation of aluminium, and pump to convey said slimes
US5333556A (en) * 1989-03-24 1994-08-02 Director Of National Food Research Institute, Ministry Of Agriculture, Forestry And Fisheries Double press screw
DE19856312A1 (en) * 1998-12-07 2000-06-08 Schenck Process Gmbh Twin screw feeder
WO2011105974A1 (en) * 2010-02-26 2011-09-01 Domeks Makine Limited Sirketi Continuous mixing system with rotatable and axially movable screws
CN102658961A (en) * 2012-05-05 2012-09-12 李勇 Self-cleaning device capable of helically conveying adhesive or scaling-easy powdery materials
CN103446951A (en) * 2013-09-18 2013-12-18 江苏通用机械设备有限公司 Deslagging screw rod device
CN107572198A (en) * 2017-10-20 2018-01-12 佛山市金银河智能装备股份有限公司 A kind of powder micro-measurement screw rod based on servo-drive

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