DE2702390A1 - Extruder for thermoplastics - central screw shaft having middle section with multiple short planetary screws inside threaded barrel - Google Patents

Extruder for thermoplastics - central screw shaft having middle section with multiple short planetary screws inside threaded barrel

Info

Publication number
DE2702390A1
DE2702390A1 DE19772702390 DE2702390A DE2702390A1 DE 2702390 A1 DE2702390 A1 DE 2702390A1 DE 19772702390 DE19772702390 DE 19772702390 DE 2702390 A DE2702390 A DE 2702390A DE 2702390 A1 DE2702390 A1 DE 2702390A1
Authority
DE
Grant status
Application
Patent type
Prior art keywords
thermoplastics
extruder
screw shaft
middle section
central screw
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.)
Pending
Application number
DE19772702390
Other languages
German (de)
Inventor
Dieter Dipl Ing Dr Kurth
Juergen Hussmann
Harald Ing Grad Rust
Theo Brechmann
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.)
EICKHOFF KLEINEWEFERS KUNSTSTO
EICKHOFF-KLEINEWEFERS KUNSTSTOFFMASCHINEN GmbH
Original Assignee
EICKHOFF KLEINEWEFERS KUNSTSTO
EICKHOFF-KLEINEWEFERS KUNSTSTOFFMASCHINEN 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

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C47/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C47/08Component parts, details or accessories; Auxiliary operations
    • B29C47/0818Exchangeable extruder parts
    • B29C47/0825Screw parts
    • 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
    • B29B7/485Mixing; 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C47/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C47/08Component parts, details or accessories; Auxiliary operations
    • B29C47/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C47/38Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel
    • B29C47/40Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel using at least two parallel intermeshing screws or at least two parallel non-intermeshing screws
    • B29C47/42Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel using at least two parallel intermeshing screws or at least two parallel non-intermeshing screws using sub-screws, e.g. planetary screws
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C47/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C47/08Component parts, details or accessories; Auxiliary operations
    • B29C47/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C47/58Details
    • B29C47/60Screws
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C47/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C47/08Component parts, details or accessories; Auxiliary operations
    • B29C47/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C47/58Details
    • B29C47/60Screws
    • B29C47/64Screws having incorporated mixing devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C47/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C47/0009Extrusion 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 articles

Abstract

Thermoplastics are processed and extruded, using a driven screw and >=1 planetary shaft meshing in with it, pref. however a planetary roller extruder with one central drive plus planetary shafts. The latter shafts are divided into sections whose adjacent end faces are at right angles to the axis of the main shaft. Threads operate under substantially the same pressure along their whole length.
DE19772702390 1977-01-21 1977-01-21 Extruder for thermoplastics - central screw shaft having middle section with multiple short planetary screws inside threaded barrel Pending DE2702390A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19772702390 DE2702390A1 (en) 1977-01-21 1977-01-21 Extruder for thermoplastics - central screw shaft having middle section with multiple short planetary screws inside threaded barrel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772702390 DE2702390A1 (en) 1977-01-21 1977-01-21 Extruder for thermoplastics - central screw shaft having middle section with multiple short planetary screws inside threaded barrel

Publications (1)

Publication Number Publication Date
DE2702390A1 true true DE2702390A1 (en) 1978-07-27

Family

ID=5999207

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772702390 Pending DE2702390A1 (en) 1977-01-21 1977-01-21 Extruder for thermoplastics - central screw shaft having middle section with multiple short planetary screws inside threaded barrel

Country Status (1)

Country Link
DE (1) DE2702390A1 (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2446168A1 (en) * 1979-01-12 1980-08-08 Berstorff Gmbh Masch Hermann Processing facility and extruding thermoplastic materials
DE4120377A1 (en) * 1991-06-20 1992-12-24 Battenfeld Extrusionstech Shaft for planet-roll extruder for easy exchange of worn parts - has driven sleeves mating with planet rolls and driven by central shaft, esp. with constant-thickness profile
DE29706094U1 (en) * 1997-04-05 1997-07-17 Battenfeld Extrusionstech Component for a planetary roller extruder,
DE29710288U1 (en) * 1997-06-12 1997-09-11 Battenfeld Extrusionstech Planetary roller extruder
EP1844917A3 (en) * 2006-03-24 2008-12-03 Entex Rust & Mitschke GmbH Method for processing products which must be degassed
EP1997608A3 (en) * 2007-05-16 2009-05-27 Entex Rust & Mitschke GmbH Method for machining products to be degassed
DE102009009775A1 (en) 2008-02-22 2010-01-28 Entex Rust & Mitschke Gmbh Planetary-gear extruder, has divided planetary-gear shafts including planetary-gear pieces that are tangentially arranged behind one another, where each shaft is slid to spacer disk in conveying direction of materials via extruder
DE102009013839A1 (en) 2009-02-20 2010-09-23 Entex Rust & Mitschke Gmbh Planetary-gear extruder for producing mixtures of e.g. plastics utilized for pipe, has planetary gear spindle extending over extruder section housing, where length of piece of spindle is five times of pitch diameter of tooth system of piece
WO2014056553A1 (en) 2012-10-11 2014-04-17 Entex Gmbh Rust & Mitschke Gmbh Extruder for processing plastics which are suitable for adhesion
DE102011112081A1 (en) 2011-05-11 2015-08-20 Entex Rust & Mitschke Gmbh A method of processing elastin
DE102015001167A1 (en) 2015-02-02 2016-08-04 Entex Rust & Mitschke Gmbh Degassing during the extrusion of plastics
DE102016002143A1 (en) 2016-02-25 2017-08-31 Entex Rust & Mitschke Gmbh Füllteilmodul in planetary roller extruder design
DE102017001093A1 (en) 2016-04-07 2017-10-26 Entex Rust & Mitschke Gmbh Degassing during the extrusion of plastics with filter discs of sintered metal

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2446168A1 (en) * 1979-01-12 1980-08-08 Berstorff Gmbh Masch Hermann Processing facility and extruding thermoplastic materials
DE4120377A1 (en) * 1991-06-20 1992-12-24 Battenfeld Extrusionstech Shaft for planet-roll extruder for easy exchange of worn parts - has driven sleeves mating with planet rolls and driven by central shaft, esp. with constant-thickness profile
DE29706094U1 (en) * 1997-04-05 1997-07-17 Battenfeld Extrusionstech Component for a planetary roller extruder,
DE29710288U1 (en) * 1997-06-12 1997-09-11 Battenfeld Extrusionstech Planetary roller extruder
EP1844917A3 (en) * 2006-03-24 2008-12-03 Entex Rust & Mitschke GmbH Method for processing products which must be degassed
EP2289687A1 (en) * 2007-05-16 2011-03-02 Entex Rust & Mitschke GmbH Method for machining products to be degassed
EP1997608A3 (en) * 2007-05-16 2009-05-27 Entex Rust & Mitschke GmbH Method for machining products to be degassed
DE102009009775A1 (en) 2008-02-22 2010-01-28 Entex Rust & Mitschke Gmbh Planetary-gear extruder, has divided planetary-gear shafts including planetary-gear pieces that are tangentially arranged behind one another, where each shaft is slid to spacer disk in conveying direction of materials via extruder
DE102009013839A1 (en) 2009-02-20 2010-09-23 Entex Rust & Mitschke Gmbh Planetary-gear extruder for producing mixtures of e.g. plastics utilized for pipe, has planetary gear spindle extending over extruder section housing, where length of piece of spindle is five times of pitch diameter of tooth system of piece
DE102011112081A1 (en) 2011-05-11 2015-08-20 Entex Rust & Mitschke Gmbh A method of processing elastin
WO2014056553A1 (en) 2012-10-11 2014-04-17 Entex Gmbh Rust & Mitschke Gmbh Extruder for processing plastics which are suitable for adhesion
DE102013000708A1 (en) 2012-10-11 2014-04-17 Entex Rust & Mitschke Gmbh A process for the extrusion of plastics, tend to stick
DE102015001167A1 (en) 2015-02-02 2016-08-04 Entex Rust & Mitschke Gmbh Degassing during the extrusion of plastics
DE102016002143A1 (en) 2016-02-25 2017-08-31 Entex Rust & Mitschke Gmbh Füllteilmodul in planetary roller extruder design
DE102017001093A1 (en) 2016-04-07 2017-10-26 Entex Rust & Mitschke Gmbh Degassing during the extrusion of plastics with filter discs of sintered metal

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