WO2000067988A1 - Extrusion device - Google Patents

Extrusion device Download PDF

Info

Publication number
WO2000067988A1
WO2000067988A1 PCT/DE2000/001363 DE0001363W WO0067988A1 WO 2000067988 A1 WO2000067988 A1 WO 2000067988A1 DE 0001363 W DE0001363 W DE 0001363W WO 0067988 A1 WO0067988 A1 WO 0067988A1
Authority
WO
WIPO (PCT)
Prior art keywords
extruder
extrusion device
feed roller
rollers
product
Prior art date
Application number
PCT/DE2000/001363
Other languages
German (de)
French (fr)
Inventor
Patrick Cotteverte
Pierre Yanez
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2000067988A1 publication Critical patent/WO2000067988A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/252—Drive or actuation means; Transmission means; Screw supporting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion

Definitions

  • the invention relates to an extrusion device according to the preamble of claim 1.
  • Extrusion devices have feed rollers and extruder screws coupled to gears, which are driven by a common drive motor.
  • the speed ratio between the feed rollers and the extruder screws is predetermined based on the gear ratios.
  • the degree of filling of an extruder can therefore vary depending on the product being processed.
  • the object of the invention is therefore to be able to optimize the degree of filling of an extruder independently of the product. This object is achieved with an extrusion device with the characterizing features of claim 1. Due to the separate drives of the feed rollers and the extruder screws, it is possible to adjust their speeds
  • Feed rollers and the extruder screws are each equipped with a gear.
  • the single figure shows a part of an extruder in a simplified side view.
  • the part of an extruder 10 shown in the figure shows a first gear box 11 with a 2-stage gear which drives at least one extruder screw.
  • a first drive motor 12 for the at least one extruder screw is flanged to the first gear box 11.
  • a second gearbox 13 is aligned, which carries a single-stage gearbox for at least one feed roller.
  • a second drive motor 14 for the at least one feed roller is flanged to the second gear box 13.
  • the drive motors 12, 14 are connected to the control device of the extruder 10 and from there their speeds can be regulated or controlled separately. This makes it possible to coordinate the speeds of the at least one feed roller and the at least one extruder screw in such a way that an optimal degree of filling of the press housing of the extruder 10 can be achieved.

Landscapes

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

Abstract

The invention relates to an extruder (10) with draw-in rollers and extruder screws which are coupled to a separate driving motor (12, 14) respectively and via transmissions. The revolutions/min of the draw-in rollers and the barrel extruders can thus be adjusted to each other in relation to the product in order to obtain an optimum degree of filling of the press housing pertaining to the extruder (10).

Description

ExtrusionseinrichtungExtrusion device
Beschreibungdescription
Die Erfindung betrifft eine Extrusionseinrichtung nach dem Oberbegriff des Anspruchs 1. BekannteThe invention relates to an extrusion device according to the preamble of claim 1. Known
Extrusionseinrichtungen weisen mit Getrieben gekoppelte Einzugswalzen und Extruderschnecken auf, die von einem gemeinsamen Antriebsmotor angetrieben sind. Infolgedessen ist das Drehzahlverhältnis zwischen den Einzugswalzen und den Extruderschnecken aufgrund der Getriebeübersetzungen vorgegeben. Daher kann der Befüllungsgrad eines Extruders, je nach dem gerade verarbeiteten Produkt unterschiedlich sein.Extrusion devices have feed rollers and extruder screws coupled to gears, which are driven by a common drive motor. As a result, the speed ratio between the feed rollers and the extruder screws is predetermined based on the gear ratios. The degree of filling of an extruder can therefore vary depending on the product being processed.
Aufgabe der Erfindung ist es daher, den Befüllungsgrad eines Extruders unabhängig vom Produkt optimieren zu können. Diese Aufgabe wird mit einer Extrusionseinrichtung mit den kennzeichnenden Merkmalen des Anspruchs 1 gelöst. Durch die getrennten Antriebe der Einzugswalzen und der Extruderschnecken ist es möglich, deren Drehzahlen zurThe object of the invention is therefore to be able to optimize the degree of filling of an extruder independently of the product. This object is achieved with an extrusion device with the characterizing features of claim 1. Due to the separate drives of the feed rollers and the extruder screws, it is possible to adjust their speeds
Erzielung eines optimalen Befüllungsgrades des Extruders aufeinander abzustimmen. Besonders vorteilhaft zur Reduzierung der erforderlichen Antriebsmomente der Einzugswalzen und der Extruderschnecken ist es, die Einzugswalzen und die Extruderschnecken jeweils mit einem Getriebe auszustatten.Achieve an optimal degree of filling of the extruder. It is particularly advantageous to reduce the drive torques required for the feed rollers and the extruder screws Feed rollers and the extruder screws are each equipped with a gear.
Ein Ausfuhrungsbeispiel der Erfindung ist m der Zeichnung dargestellt und wird nachfolgend naher erläutert.An exemplary embodiment of the invention is shown in the drawing and is explained in more detail below.
Die einzige Figur zeigt einen Teil eines Extruders m einer vereinfachten Seitenansicht.The single figure shows a part of an extruder in a simplified side view.
Der m der Figur dargestellte Teil eines Extruders 10 zeigt einen ersten Getriebekasten 11 mit einem 2 -stufigen Getriebe, das wenigstens eine Extruderschnecke antreibt. An den ersten Getriebekasten 11 ist ein erster Antriebsmotor 12 für die wenigstens eine Extruderschnecke angeflanscht. Mit dem ersten Getriebekasten 11 ist ein zweiter Getriebekasten 13 ausgerichtet, der ein -stufiges Getriebe für wenigstens eine Einzugswalze trägt. An den zweiten Getriebekasten 13 ist ein zweiter Antriebsmotor 14 für die wenigstens eine Einzugswalze angeflanscht. Die Antriebsmotoren 12, 14 sind mit der Steuereinrichtung des Extruders 10 verbunden und von dort aus in ihren Drehzahlen getrennt regel- bzw. steuerbar. Dadurch wird es ermöglicht, die Drehzahlen der wenigstens einen Einzugswalze und der wenigstens einen Extruderschnecke derart aufeinander abzustimmen, daß ein optimaler Befüllungsgrad des Pressengehäuses des Extruders 10 erzielt werden kann. The part of an extruder 10 shown in the figure shows a first gear box 11 with a 2-stage gear which drives at least one extruder screw. A first drive motor 12 for the at least one extruder screw is flanged to the first gear box 11. With the first gearbox 11, a second gearbox 13 is aligned, which carries a single-stage gearbox for at least one feed roller. A second drive motor 14 for the at least one feed roller is flanged to the second gear box 13. The drive motors 12, 14 are connected to the control device of the extruder 10 and from there their speeds can be regulated or controlled separately. This makes it possible to coordinate the speeds of the at least one feed roller and the at least one extruder screw in such a way that an optimal degree of filling of the press housing of the extruder 10 can be achieved.

Claims

Ansprüche Expectations
1. Extrusionseinrichtung (10), mit wenigstens einer ein Produkt zuführenden Einzugswalze und wenigstens einer, mit der Einzugswalze in Wirkverbindung angeordneten Extruderschnecke für das Produkt, dadurch gekennzeichnet, daß die wenigstens eine Einzugswalze und die wenigstens eine Extruderschnecke separate Antriebsmotoren (12, 14) aufweisen.1. extrusion device (10), with at least one feed roller feeding a product and at least one extruder screw for the product arranged in operative connection with the feed roller, characterized in that the at least one feed roller and the at least one extruder screw have separate drive motors (12, 14) .
2. Extrusionseinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die wenigstens eine Einzugswalze und die wenigstens eine Extruderschnecke mit ihrem jeweiligen Antriebsmotor (12, 14) mittels jeweils eines Getriebes (11, 13) gekoppelt sind. 2. Extrusion device according to claim 1, characterized in that the at least one feed roller and the at least one extruder screw are coupled to their respective drive motor (12, 14) by means of a gear (11, 13).
PCT/DE2000/001363 1999-05-05 2000-05-03 Extrusion device WO2000067988A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29907974U DE29907974U1 (en) 1999-05-05 1999-05-05 Extrusion device
DE29907974.0 1999-05-05

Publications (1)

Publication Number Publication Date
WO2000067988A1 true WO2000067988A1 (en) 2000-11-16

Family

ID=8073141

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2000/001363 WO2000067988A1 (en) 1999-05-05 2000-05-03 Extrusion device

Country Status (2)

Country Link
DE (1) DE29907974U1 (en)
WO (1) WO2000067988A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2500158A3 (en) * 2011-03-03 2013-04-03 Klöckner Desma Elastomertechnik GmbH Plasticizing and injection device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007051923B4 (en) 2007-10-29 2011-03-10 Troester Gmbh & Co. Kg Apparatus and method for processing polymeric materials

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1729341A1 (en) * 1967-03-30 1971-03-11 Guenther Schliefs Extruder for the extrusion process for the multi-screw and single-screw process with multi-part, individually driven screw parts
US4286882A (en) * 1977-09-02 1981-09-01 Schiesser Ag Apparatus for the automatic, uniform drawing-in of elastomeric material into worm extruders
GB2171952A (en) * 1985-03-08 1986-09-10 Extrudaids Ltd Improvements in extruder screws
US4718770A (en) * 1986-05-16 1988-01-12 Nrm Corporation Extruder for elastomeric material
DE4032087A1 (en) * 1990-10-10 1992-04-16 Wilhelm E Frede Constant output from screw machine with varying input - uses two=part screw with variable speed first part and constant speed second part
DE4422744A1 (en) * 1993-06-30 1995-01-12 Pavan Mapimpianti Spa Extrusion worm with forcible feed

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1729341A1 (en) * 1967-03-30 1971-03-11 Guenther Schliefs Extruder for the extrusion process for the multi-screw and single-screw process with multi-part, individually driven screw parts
US4286882A (en) * 1977-09-02 1981-09-01 Schiesser Ag Apparatus for the automatic, uniform drawing-in of elastomeric material into worm extruders
GB2171952A (en) * 1985-03-08 1986-09-10 Extrudaids Ltd Improvements in extruder screws
US4718770A (en) * 1986-05-16 1988-01-12 Nrm Corporation Extruder for elastomeric material
DE4032087A1 (en) * 1990-10-10 1992-04-16 Wilhelm E Frede Constant output from screw machine with varying input - uses two=part screw with variable speed first part and constant speed second part
DE4422744A1 (en) * 1993-06-30 1995-01-12 Pavan Mapimpianti Spa Extrusion worm with forcible feed

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2500158A3 (en) * 2011-03-03 2013-04-03 Klöckner Desma Elastomertechnik GmbH Plasticizing and injection device

Also Published As

Publication number Publication date
DE29907974U1 (en) 2000-09-07

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