DK1935611T3 - extruder - Google Patents

extruder

Info

Publication number
DK1935611T3
DK1935611T3 DK06026662T DK06026662T DK1935611T3 DK 1935611 T3 DK1935611 T3 DK 1935611T3 DK 06026662 T DK06026662 T DK 06026662T DK 06026662 T DK06026662 T DK 06026662T DK 1935611 T3 DK1935611 T3 DK 1935611T3
Authority
DK
Denmark
Prior art keywords
arm
nozzle plate
shearing
screw tip
extruder
Prior art date
Application number
DK06026662T
Other languages
Danish (da)
Inventor
Maria Hoelzel
Dirk Kyrion
Original Assignee
Coperion 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 Coperion Gmbh filed Critical Coperion Gmbh
Application granted granted Critical
Publication of DK1935611T3 publication Critical patent/DK1935611T3/en

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
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395Means 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
    • B29C48/40Means 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
    • B29C48/405Intermeshing co-rotating 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
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • 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
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/04Particle-shaped
    • 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
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/05Filamentary, e.g. strands
    • 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
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/30Extrusion nozzles or dies
    • B29C48/345Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising
    • 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
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50Details of extruders
    • B29C48/76Venting, drying means; Degassing means
    • B29C48/765Venting, drying means; Degassing means in the extruder apparatus
    • B29C48/766Venting, drying means; Degassing means in the extruder apparatus in screw extruders
    • B29C48/767Venting, drying means; Degassing means in the extruder apparatus in screw extruders through a degassing opening of a barrel

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

Extruder comprises a shearing tool (26) having an arm (27) and arranged directly in front of a nozzle plate (24) at the screw tip (9). A shearing gap (30) is formed between the shearing tool and the nozzle plate. Preferred Features: The arm has a surface running toward a hub. The arm is arranged with the downstream end of the screw bar (22b, 22c) of the screw tip. Nozzle holes (25) are arranged on an annular surface.
DK06026662T 2006-12-22 2006-12-22 extruder DK1935611T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06026662A EP1935611B1 (en) 2006-12-22 2006-12-22 Extruder tip for high viscous material

Publications (1)

Publication Number Publication Date
DK1935611T3 true DK1935611T3 (en) 2009-07-27

Family

ID=37969472

Family Applications (1)

Application Number Title Priority Date Filing Date
DK06026662T DK1935611T3 (en) 2006-12-22 2006-12-22 extruder

Country Status (4)

Country Link
EP (1) EP1935611B1 (en)
AT (1) ATE427205T1 (en)
DE (1) DE502006003348D1 (en)
DK (1) DK1935611T3 (en)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2291212A (en) * 1940-01-13 1942-07-28 James C Clinefelter Extruding machine
US2488129A (en) * 1943-07-01 1949-11-15 Attapulgus Clay Company Apparatus for extrusion of plastic materials
FR1206465A (en) * 1957-10-26 1960-02-10 Reifenhaueser K G Maschinenfab Worm for extrusion press
US3018516A (en) * 1958-05-02 1962-01-30 James W Clinefelter Plastic extruding machine
US3901486A (en) * 1973-04-20 1975-08-26 Tokyo Tobari Co Ltd Apparatus for melting raw thermoplastic synthetic resin material
JPS50151848U (en) * 1974-06-04 1975-12-17
CA1092311A (en) * 1975-09-04 1980-12-30 John C. Miller Extrusion of cellular thermoplastic material
JPS5440864A (en) * 1977-09-07 1979-03-31 Japan Steel Works Ltd Extruder for thermosetting resin
JPS5557444A (en) * 1978-10-23 1980-04-28 Toshiba Mach Co Ltd Screw head
JPS55159954A (en) * 1979-05-31 1980-12-12 Matsushita Electric Works Ltd Screw-type extruder
SU925654A1 (en) * 1980-10-17 1982-05-07 Всесоюзный Научно-Исследовательский Институт Машин Для Производства Синтетических Волокон Extruder-mixer
JPS5770628A (en) * 1980-10-22 1982-05-01 Asahi Chem Ind Co Ltd Melt extrusion apparatus

Also Published As

Publication number Publication date
EP1935611B1 (en) 2009-04-01
ATE427205T1 (en) 2009-04-15
EP1935611A1 (en) 2008-06-25
DE502006003348D1 (en) 2009-05-14

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