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ITUD930125A0 - Vite di estrusione con alimentazione forzata - Google Patents

Vite di estrusione con alimentazione forzata

Info

Publication number
ITUD930125A0
ITUD930125A0 ITUD930125A ITUD930125A0 IT UD930125 A0 ITUD930125 A0 IT UD930125A0 IT UD930125 A ITUD930125 A IT UD930125A IT UD930125 A0 ITUD930125 A0 IT UD930125A0
Authority
IT
Italy
Prior art keywords
extrusion screw
forced feed
forced
feed
extrusion
Prior art date
Application number
Other languages
English (en)
Inventor
Pier Luigi Conselvan
Original Assignee
Pavan Mapimpianti Spa
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 Pavan Mapimpianti Spa filed Critical Pavan Mapimpianti Spa
Priority to ITUD930125A priority Critical patent/IT1262150B/it
Publication of ITUD930125A0 publication Critical patent/ITUD930125A0/it
Priority to FR9407653A priority patent/FR2708212A1/fr
Priority to DE4422744A priority patent/DE4422744A1/de
Publication of ITUD930125A1 publication Critical patent/ITUD930125A1/it
Application granted granted Critical
Publication of IT1262150B publication Critical patent/IT1262150B/it

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
    • B29C48/535—Screws with thread pitch varying along the longitudinal axis
    • 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
    • B29C48/25—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
    • B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
    • B29C48/38—Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in the same barrel
    • 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
    • B29C48/53—Screws having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Manufacturing And Processing Devices For Dough (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
ITUD930125A 1993-06-30 1993-06-30 Vite di estrusione con alimentazione forzata IT1262150B (it)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ITUD930125A IT1262150B (it) 1993-06-30 1993-06-30 Vite di estrusione con alimentazione forzata
FR9407653A FR2708212A1 (fr) 1993-06-30 1994-06-22 Vis d'extrusion à alimentation forcée.
DE4422744A DE4422744A1 (de) 1993-06-30 1994-06-29 Extrusionsschnecke mit Zwangszufuhr

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITUD930125A IT1262150B (it) 1993-06-30 1993-06-30 Vite di estrusione con alimentazione forzata

Publications (3)

Publication Number Publication Date
ITUD930125A0 true ITUD930125A0 (it) 1993-06-30
ITUD930125A1 ITUD930125A1 (it) 1994-12-30
IT1262150B IT1262150B (it) 1996-06-19

Family

ID=11421324

Family Applications (1)

Application Number Title Priority Date Filing Date
ITUD930125A IT1262150B (it) 1993-06-30 1993-06-30 Vite di estrusione con alimentazione forzata

Country Status (3)

Country Link
DE (1) DE4422744A1 (it)
FR (1) FR2708212A1 (it)
IT (1) IT1262150B (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29907974U1 (de) * 1999-05-05 2000-09-07 Robert Bosch Gmbh, 70469 Stuttgart Extrusionseinrichtung
CN112549494B (zh) * 2020-11-27 2023-01-31 漳州普瑞邦节能科技有限公司 一种泡沫塑料挤塑机

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE523705A (it) * 1952-10-23 1900-01-01
DE1047417B (de) * 1954-07-12 1958-12-24 Hermann Teichmann Dr Ing Mahl- und Knetvorrichtung an Schneckenpressen fuer thermoplastische Massen
DE1729341A1 (de) * 1967-03-30 1971-03-11 Guenther Schliefs Extruder fuer das Strangpressverfahren fuer das Mehr- und Einschneckenverfahren mit mehrteiligen einzeln angetriebenen Schneckenteilen
SU674929A1 (ru) * 1977-11-02 1979-07-28 Отдел Физики Полимеров Уральского Научного Центра Ан Ссср Черв чный экструдер дл переработки полимерного материала
DE3334394A1 (de) * 1983-09-23 1985-04-11 Leistritz Maschinenfabrik Paul Leistritz GmbH, 8500 Nürnberg Vorrichtung zum extrudieren von kunststoffen
GB2171952A (en) * 1985-03-08 1986-09-10 Extrudaids Ltd Improvements in extruder screws
DE4032087A1 (de) * 1990-10-10 1992-04-16 Wilhelm E Frede Verfahren zum konstanthalten des massestromes vorzugsweise fliessfaehigen schuettgutes bei schneckenmaschinen oder des foerderschneckenanteiles eines weiterverarbeitenden systems unabhaengig von schuettgewichtsaenderungen

Also Published As

Publication number Publication date
ITUD930125A1 (it) 1994-12-30
FR2708212A1 (fr) 1995-02-03
IT1262150B (it) 1996-06-19
DE4422744A1 (de) 1995-01-12

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Legal Events

Date Code Title Description
0001 Granted