ITUD930125A1 - EXTRUSION SCREW WITH FORCED FEED - Google Patents

EXTRUSION SCREW WITH FORCED FEED

Info

Publication number
ITUD930125A1
ITUD930125A1 IT000125A ITUD930125A ITUD930125A1 IT UD930125 A1 ITUD930125 A1 IT UD930125A1 IT 000125 A IT000125 A IT 000125A IT UD930125 A ITUD930125 A IT UD930125A IT UD930125 A1 ITUD930125 A1 IT UD930125A1
Authority
IT
Italy
Prior art keywords
extrusion screw
forced feed
forced
feed
extrusion
Prior art date
Application number
IT000125A
Other languages
Italian (it)
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/en
Publication of ITUD930125A0 publication Critical patent/ITUD930125A0/en
Priority to FR9407653A priority patent/FR2708212A1/en
Priority to DE4422744A priority patent/DE4422744A1/en
Publication of ITUD930125A1 publication Critical patent/ITUD930125A1/en
Application granted granted Critical
Publication of IT1262150B publication Critical patent/IT1262150B/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
    • B29C48/36—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)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Manufacturing And Processing Devices For Dough (AREA)
ITUD930125A 1993-06-30 1993-06-30 EXTRUSION SCREW WITH FORCED FEED IT1262150B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ITUD930125A IT1262150B (en) 1993-06-30 1993-06-30 EXTRUSION SCREW WITH FORCED FEED
FR9407653A FR2708212A1 (en) 1993-06-30 1994-06-22 Extrusion screw with forced feeding.
DE4422744A DE4422744A1 (en) 1993-06-30 1994-06-29 Extrusion worm with forcible feed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITUD930125A IT1262150B (en) 1993-06-30 1993-06-30 EXTRUSION SCREW WITH FORCED FEED

Publications (3)

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

Family

ID=11421324

Family Applications (1)

Application Number Title Priority Date Filing Date
ITUD930125A IT1262150B (en) 1993-06-30 1993-06-30 EXTRUSION SCREW WITH FORCED FEED

Country Status (3)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29907974U1 (en) * 1999-05-05 2000-09-07 Robert Bosch Gmbh, 70469 Stuttgart Extrusion device
CN112549494B (en) * 2020-11-27 2023-01-31 漳州普瑞邦节能科技有限公司 Foamed plastic extruding machine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE523705A (en) * 1952-10-23 1900-01-01
DE1047417B (en) * 1954-07-12 1958-12-24 Hermann Teichmann Dr Ing Milling and kneading device on screw presses for thermoplastic masses
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
SU674929A1 (en) * 1977-11-02 1979-07-28 Отдел Физики Полимеров Уральского Научного Центра Ан Ссср Worm screw extruder for working polymeric material
DE3334394A1 (en) * 1983-09-23 1985-04-11 Leistritz Maschinenfabrik Paul Leistritz GmbH, 8500 Nürnberg Device for extruding plastics
GB2171952A (en) * 1985-03-08 1986-09-10 Extrudaids Ltd Improvements in extruder screws
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

Also Published As

Publication number Publication date
ITUD930125A0 (en) 1993-06-30
DE4422744A1 (en) 1995-01-12
FR2708212A1 (en) 1995-02-03
IT1262150B (en) 1996-06-19

Similar Documents

Publication Publication Date Title
DE4392041D2 (en) Screw press
DE19781952T1 (en) Screwdriver with successive screw feed
DE59401651D1 (en) SCREW PRESS
DE59201084D1 (en) Screw extruder with discharge pump.
DE69301714D1 (en) Conical twin screw extruder
DE69415249D1 (en) Extrusion press
EP0452868A3 (en) Screw extruder
NO962648D0 (en) Continuous extrusion
ITUD930125A0 (en) EXTRUSION SCREW WITH FORCED FEED
DE59302974D1 (en) Screw press
IT1226132B (en) SCREW FOR EXTRUDER.
KR940005263U (en) Screw driver
FI945172A0 (en) feed screw
KR940026787U (en) Screw jack
ATA174391A (en) SCREW PLASTIFICATION UNIT
IT235123Y1 (en) FASTENING SCREW
FI912185L (en) SCREW CONVEYORS
KR950005973U (en) Extrusion Dies for Synthetic Resin Pencils
ATA31191A (en) SCREW PRESS
ITAT920004U1 (en) SCREW HOLDER AUCTION
AU112946S (en) An extrusion
AU114001S (en) An extrusion
AU111991S (en) An extrusion
AU112843S (en) An extrusion
AU112844S (en) An extrusion

Legal Events

Date Code Title Description
0001 Granted