IT201700023340A1 - Vite di estrusione, particolarmente per macchine di estrusione monovite. - Google Patents

Vite di estrusione, particolarmente per macchine di estrusione monovite.

Info

Publication number
IT201700023340A1
IT201700023340A1 IT102017000023340A IT201700023340A IT201700023340A1 IT 201700023340 A1 IT201700023340 A1 IT 201700023340A1 IT 102017000023340 A IT102017000023340 A IT 102017000023340A IT 201700023340 A IT201700023340 A IT 201700023340A IT 201700023340 A1 IT201700023340 A1 IT 201700023340A1
Authority
IT
Italy
Prior art keywords
screw
extrusion
machines
extrusion machines
screw extrusion
Prior art date
Application number
IT102017000023340A
Other languages
English (en)
Inventor
Stefano Paoletti
Original Assignee
Semplice S P A
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 Semplice S P A filed Critical Semplice S P A
Priority to IT102017000023340A priority Critical patent/IT201700023340A1/it
Publication of IT201700023340A1 publication Critical patent/IT201700023340A1/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
    • B29C48/64—Screws with two or more threads
    • B29C48/65—Screws with two or more threads neighbouring threads or channels having different configurations, e.g. one thread being lower than its neighbouring thread
    • 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
    • B29C48/397—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 a single screw
    • 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
    • B29C48/25—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
    • B29C48/59—Screws characterised by details of the thread, i.e. the shape of a single thread of the material-feeding screw
    • B29C48/605—Screws characterised by details of the thread, i.e. the shape of a single thread of the material-feeding screw the thread being discontinuous
    • 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
    • B29C48/62—Screws characterised by the shape of the thread channel, e.g. U-shaped
    • 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
    • B29C48/267—Intermediate treatments, e.g. relaxation, annealing or decompression step for the melt
    • 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
    • B29C48/56—Screws having grooves or cavities other than the thread or the channel

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
IT102017000023340A 2017-03-02 2017-03-02 Vite di estrusione, particolarmente per macchine di estrusione monovite. IT201700023340A1 (it)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT102017000023340A IT201700023340A1 (it) 2017-03-02 2017-03-02 Vite di estrusione, particolarmente per macchine di estrusione monovite.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102017000023340A IT201700023340A1 (it) 2017-03-02 2017-03-02 Vite di estrusione, particolarmente per macchine di estrusione monovite.

Publications (1)

Publication Number Publication Date
IT201700023340A1 true IT201700023340A1 (it) 2018-09-02

Family

ID=59521321

Family Applications (1)

Application Number Title Priority Date Filing Date
IT102017000023340A IT201700023340A1 (it) 2017-03-02 2017-03-02 Vite di estrusione, particolarmente per macchine di estrusione monovite.

Country Status (1)

Country Link
IT (1) IT201700023340A1 (it)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54154374U (it) * 1978-04-20 1979-10-26
EP0034505A2 (en) * 1980-02-19 1981-08-26 W.H. Willert, Inc. Plasticizing screw
US6056430A (en) * 1998-09-25 2000-05-02 Hpm Corporation Plasticating apparatus having a multichannel wave screw with a cross channel solids transition
EP1344627A1 (en) * 2002-03-14 2003-09-17 Ferioli Filippo S.p.A. Screw for plasticising thermoplastic resins with three flights and streams of different speed therein
US20060018186A1 (en) * 2004-07-22 2006-01-26 New Castle Industries, Inc. Apparatus for plasticating thermoplastic resin including polypropylene
WO2009040235A1 (en) * 2007-09-27 2009-04-02 Samp S.P.A. Extruder screw for machines extruding plastics material
US20100110823A1 (en) * 2008-11-06 2010-05-06 Womer Timothy W Combined Screw Design and Heating Mechanism for Low Shear Resins

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54154374U (it) * 1978-04-20 1979-10-26
EP0034505A2 (en) * 1980-02-19 1981-08-26 W.H. Willert, Inc. Plasticizing screw
US6056430A (en) * 1998-09-25 2000-05-02 Hpm Corporation Plasticating apparatus having a multichannel wave screw with a cross channel solids transition
EP1344627A1 (en) * 2002-03-14 2003-09-17 Ferioli Filippo S.p.A. Screw for plasticising thermoplastic resins with three flights and streams of different speed therein
US20060018186A1 (en) * 2004-07-22 2006-01-26 New Castle Industries, Inc. Apparatus for plasticating thermoplastic resin including polypropylene
WO2009040235A1 (en) * 2007-09-27 2009-04-02 Samp S.P.A. Extruder screw for machines extruding plastics material
US20100110823A1 (en) * 2008-11-06 2010-05-06 Womer Timothy W Combined Screw Design and Heating Mechanism for Low Shear Resins

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