EP1945437A1 - Extrudeuse a plusieurs arbres - Google Patents

Extrudeuse a plusieurs arbres

Info

Publication number
EP1945437A1
EP1945437A1 EP06806206A EP06806206A EP1945437A1 EP 1945437 A1 EP1945437 A1 EP 1945437A1 EP 06806206 A EP06806206 A EP 06806206A EP 06806206 A EP06806206 A EP 06806206A EP 1945437 A1 EP1945437 A1 EP 1945437A1
Authority
EP
European Patent Office
Prior art keywords
shaft
extruder according
extruder
elements
hub connection
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.)
Withdrawn
Application number
EP06806206A
Other languages
German (de)
English (en)
Inventor
Josef A. Blach
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.)
Blach Verwaltungs GmbH and Co KG
Original Assignee
Blach Verwaltungs GmbH and Co KG
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 Blach Verwaltungs GmbH and Co KG filed Critical Blach Verwaltungs GmbH and Co KG
Publication of EP1945437A1 publication Critical patent/EP1945437A1/fr
Withdrawn legal-status Critical Current

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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
    • F16D1/101—Quick-acting couplings in which the parts are connected by simply bringing them together axially without axial retaining means rotating with the coupling
    • 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
    • B29C48/256—Exchangeable extruder parts
    • B29C48/2564—Screw parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
    • F16D2001/103—Quick-acting couplings in which the parts are connected by simply bringing them together axially the torque is transmitted via splined connections

Definitions

  • the invention relates to an extruder with at least two support shafts according to the preamble of claim 1.
  • the most economical worm shaft is that with the largest delivery volume and at the same time the highest, introductory torque.
  • the overall cross section of a Forderschneckensystems is limited by the diameter of Gehausebohrung and the distance between adjacent Gehausebohrungen. It must be distributed proportionately to the technical requirements and possibilities as well as the need for four cross sections.
  • For transporting the product first the free surface of the conveyor is determined, which is determined by the outside diameter of the screw element and the passage depth. Thus, the core diameter of the screw element and the center distance to the adjacent support shaft is fixed.
  • the support shaft requires the computationally usable surface portion for axial guidance of the required shaft torque for the subsequent attachment elements.
  • the constructive need for flat space for the acquisition of the proportionate torque for the slip-on element must be taken into account, and fourth, the remaining cross-sectional area of the slip-on element remains relatively to the shaft torque for a reliable slip-on element.
  • each support shaft which generally has a length which corresponds to at least twenty times the housing bore diameter, a plurality of Aufsteckelementen are plugged tight.
  • the performance and economy of an extruder is therefore determined by the highest permissible torque in the long term while maintaining the highest volume performance of the extruder.
  • the object of the invention is to substantially increase the volume performance of an extruder at the same torque.
  • the passage depth of the Forder- or the like Aufsteckelements is increased at high torque transmission of the shaft-hub Verbmdung. That is, at the same large center distance of the slip-on outer diameter is greater and the Aufsteckelementkern micr reduced by the same amount, which significantly increases the free Forderflache the Forderelement or working surface of the working element and thus the performance of the extruder.
  • the Aufsteckelement whose cross section is composed according to the preamble of claim 1 of three circular arc, (1) in the region of the circular arc which corresponds to the Aufsteckele- mentkern trimmesser formed without shaft-hub connection under flat contact with the support shaft and / or (2) provided with Verstarkungssegmenten at its ends.
  • the plug-on element In the region of the circular arc, which corresponds to the Aufsteckelementkern trimmesser, the plug-on element has the lowest wall thickness.
  • the shaft transmits torque, it tightens more than the slip-on elements, which are harder and more torsionally rigid than the shaft. Therefore, the slip-on element absorbs this force in the respective region of the shaft. In this power transmission, the ends are exposed to the smallest thickness of the Aufsteckelements the strongest load.
  • a support shaft designed in accordance with the invention can be produced in a simple manner by removing from a conventional support shaft, e.g. an involute profile shaft as in DIN 5480, in the region where the plug-in element bears with its corresponding to the arc of the Aufsteckelementkern micrs, thinnest region, the toothing of the shaft, for. removed by grinding.
  • a conventional support shaft e.g. an involute profile shaft as in DIN 5480
  • the surface with which the support shaft and the slip-on element abuts in the region of the slip-on element with the circular arc corresponding to the slip-on core diameter can be a curved arcuate surface or a flat surface, ie a surface corresponding in cross-section to a straight line.
  • the slip-on element can be reinforced at its ends by preferably annular reinforcing segments in order to accommodate the high forces occurring in the torque transmission occurring at the ends of the slip-on element.
  • the volume performance can be increased by about 30%.
  • the sealing surface is increased, which prevents material between the plug-in elements and the shaft can penetrate and crack.
  • the shaft-hub connection is formed by an involute profile, serrated or splined connection.
  • compounds have proven to be suitable in which the keyways in the slip-on and the teeth of the shaft are rounded.
  • the inventive extruder has at least two support shafts, but it may also have a significantly larger number of support shafts.
  • the extruder may have at least three shafts arranged in a cavity of an extruder housing along a circle or circular arc with the same central angular spacing, parallel to the extruder axis, the extruder housing being provided on the radially inner and outer side of the cavity with concave circular segments parallel to the extruder axis, where the plug-in elements are guided.
  • the cavity may also be annular.
  • Such an extruder is e.g. in EP 0 788 867 B.
  • the conveyor attachment element is in particular formed by a screw element, the working attachment element e.g. by a requesting screw element opposite slope direction, a kneading block a blister or a toothed disc.
  • Aufsteckieri may be provided which have a Forder- and a working section.
  • Figure 1 shows the front profile of two circumferentially closely intermeshing screw elements in a twin-screw extruder
  • Figure 2 and 3 is a side view and end view of annensteckelements according to a first embodiment
  • Figure 4 and 5 is a perspective view and a
  • Figure 6, 7 and 8 is a side view, end view and a perspective view of a Aufsteckelements according to a third embodiment.
  • the slip-on element 1 has an internal toothing 3, in which the support shaft 4 engages with its external toothing 5.
  • the slip-on element thus has a free Forderflache 6, which is determined by the diameter DA and the flight depth. Furthermore, the area fraction 7 is required for the shaft-hub connection, which results from dTA and dTi.
  • the formed as a screw element Aufsteckelement 1 also has an internal toothing 3, in which the support shaft 4 engages with its outer toothing 5 all around. In this case, an involute profile toothing is provided.
  • an annular reinforcing segment 8, 9 is provided at each end.
  • the two-pronged plug-in element 1 is formed in the thin region 11, 12 without shaft-hub connection corresponding to the circular arc E-F. That is, both the slip-on element 1 and the support shaft 4 are smooth in the sector corresponding to the circular arc E-F and are in full-flat contact with each other.
  • the splines of the involute 3 extend so that at the ends only in the thick-walled areas of the slip-on 1, which correspond to the circular arc A-E and A-B. That is, the areas 11 and 12 are not weakened by keyways at the ends.
  • the regions of the male plug-in element without shaft-hub connection corresponding to the circular arc EF are formed, and reinforcing rings 13, 14 are also provided at the ends, wherein the reinforcing rings 13, 14 are formed as concentric rings ,
  • the shaft-hub Compound formed concentric to the axis of the support shaft as shown in Figure 4 and 5.
  • the support shaft 4 is designed so that the smooth areas formed by the slip-on 1 correspond to this.

Landscapes

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

Abstract

L'invention concerne une extrudeuse dans laquelle la section transversale des éléments d'enfichage (1) a un profil constitué d'arcs de cercle qui correspondent au diamètre maximum de l'élément d'enfichage, au diamètre de l'âme de l'élément d'enfichage et à l'entraxe des éléments d'enfichage (1). Selon l'invention, dans la zone de l'arc de cercle qui correspond au diamètre de l'âme de l'élément d'enfichage, l'élément d'enfichage (1) ne présente pas de liaison entre l'arbre et le moyeu et/ou est doté à ses extrémités de segments de renfort (13, 14).
EP06806206A 2005-11-11 2006-10-12 Extrudeuse a plusieurs arbres Withdrawn EP1945437A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005053907A DE102005053907B4 (de) 2005-11-11 2005-11-11 Mehrwellenextruder
PCT/EP2006/009847 WO2007054173A1 (fr) 2005-11-11 2006-10-12 Extrudeuse a plusieurs arbres

Publications (1)

Publication Number Publication Date
EP1945437A1 true EP1945437A1 (fr) 2008-07-23

Family

ID=37575301

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06806206A Withdrawn EP1945437A1 (fr) 2005-11-11 2006-10-12 Extrudeuse a plusieurs arbres

Country Status (9)

Country Link
US (1) US8172450B2 (fr)
EP (1) EP1945437A1 (fr)
JP (1) JP5000661B2 (fr)
KR (1) KR20080066767A (fr)
CN (1) CN101300120B (fr)
BR (1) BRPI0618511A2 (fr)
DE (1) DE102005053907B4 (fr)
RU (1) RU2382701C1 (fr)
WO (1) WO2007054173A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004052055B4 (de) * 2004-10-26 2014-11-20 Blach Verwaltung Gmbh & Co.Kg Extruder
JP4083183B2 (ja) 2005-06-27 2008-04-30 株式会社日本製鋼所 混練押出機用スクリュ
DE102008029304A1 (de) * 2008-06-20 2009-12-24 Bayer Technology Services Gmbh Verfahren zur Erzeugung von Schneckenelementen
RU2538852C2 (ru) 2009-07-16 2015-01-10 Йозеф А. Блах Экструдер
DE102009059072A1 (de) * 2009-12-18 2011-06-22 Bayer Technology Services GmbH, 51373 Schneckenelemente zur Extrusion viskoelastischer Massen
AT509710B1 (de) 2010-03-24 2011-11-15 Josef Ing Blach Extruder
DE102011112148B4 (de) 2011-09-01 2015-12-24 Kraussmaffei Berstorff Gmbh Extruder und Verfahren zum Herstellen eines Extruders
US9180511B2 (en) 2012-04-12 2015-11-10 Rel, Inc. Thermal isolation for casting articles
CN102975482A (zh) * 2012-11-29 2013-03-20 苏州一致电子制程有限公司 多工位工作盘
DE102017007117A1 (de) * 2016-10-18 2018-04-19 Reifenhäuser GmbH & Co. KG Maschinenfabrik Schnecke zum Einsatz in einem Extruder und Extruder
CN113457502B (zh) * 2021-07-05 2022-08-02 广西大学 一种搅拌装置及其搅拌器

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE813154C (de) * 1949-09-29 1951-09-06 Bayer Ag Misch- und Knetvorrichtung
DE7701692U1 (de) * 1977-01-21 1980-07-31 Eickhoff-Kleinewefers Kunststoffmaschinen Gmbh, 4630 Bochum Vorrichtung zum aufbereiten und strangpressen von thermoplastischen kunststoffen
DE2750767A1 (de) * 1977-11-12 1979-05-17 Werner & Pfleiderer Knetkoerper fuer extruderschneckenmaschinen
JPS5829733B2 (ja) * 1977-11-19 1983-06-24 積水化学工業株式会社 押出機
GB8804313D0 (en) * 1988-02-24 1988-03-23 Apv Plc Improvements in/relating to mixers
JPH0425429A (ja) * 1990-05-21 1992-01-29 Mitsubishi Heavy Ind Ltd 分割型の押出機用スクリュ及びその製造方法
GB9302359D0 (en) 1993-02-06 1993-03-24 Gkn Technology Ltd Torque transmitting assemblies
DE4319058A1 (de) * 1993-06-09 1994-12-15 Burgsmueller Gmbh Schneckenwelle
JP3472391B2 (ja) * 1995-07-19 2003-12-02 東芝機械株式会社 ２軸押出機及びその２軸押出機を利用した押出方法
ATE181867T1 (de) 1996-02-06 1999-07-15 Josef A Blach Vorrichtung zum kontinuierlichen bearbeiten von fliessfähigen materialien
US6116771A (en) 1999-02-05 2000-09-12 Krupp Werner & Pfleiderer Corporation Multi-shaft extruder screw bushing and extruder
JP3938683B2 (ja) * 2001-11-29 2007-06-27 株式会社神戸製鋼所 ゴムあるいはゴム系組成物の混練装置
EP1316399B1 (fr) * 2001-11-29 2010-10-06 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Appareil de pétrissage
DE10233213B4 (de) * 2002-07-22 2004-09-09 3+Extruder Gmbh Extruder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007054173A1 *

Also Published As

Publication number Publication date
CN101300120A (zh) 2008-11-05
KR20080066767A (ko) 2008-07-16
DE102005053907B4 (de) 2009-05-20
US8172450B2 (en) 2012-05-08
RU2008123594A (ru) 2009-12-20
JP2009514704A (ja) 2009-04-09
JP5000661B2 (ja) 2012-08-15
WO2007054173A1 (fr) 2007-05-18
US20090274003A1 (en) 2009-11-05
BRPI0618511A2 (pt) 2011-09-06
CN101300120B (zh) 2013-04-10
DE102005053907A1 (de) 2007-05-16
RU2382701C1 (ru) 2010-02-27

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