PL445496A1 - Extruder screw - Google Patents

Extruder screw

Info

Publication number
PL445496A1
PL445496A1 PL445496A PL44549623A PL445496A1 PL 445496 A1 PL445496 A1 PL 445496A1 PL 445496 A PL445496 A PL 445496A PL 44549623 A PL44549623 A PL 44549623A PL 445496 A1 PL445496 A1 PL 445496A1
Authority
PL
Poland
Prior art keywords
screw
length
nominal diameter
working part
zone
Prior art date
Application number
PL445496A
Other languages
Polish (pl)
Other versions
PL248260B1 (en
Inventor
Katarzyna Janczak
Kacper Fiedurek
Natalia Puszczykowska
Daria LISEWSKA
Alicja MAZURYK
Original Assignee
Sieć Badawcza Łukasiewicz - Instytut Inżynierii Materiałów Polimerowych I Barwników
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 Sieć Badawcza Łukasiewicz - Instytut Inżynierii Materiałów Polimerowych I Barwników filed Critical Sieć Badawcza Łukasiewicz - Instytut Inżynierii Materiałów Polimerowych I Barwników
Priority to PL445496A priority Critical patent/PL248260B1/en
Publication of PL445496A1 publication Critical patent/PL445496A1/en
Publication of PL248260B1 publication Critical patent/PL248260B1/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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • B29C45/48—Plasticising screw and injection screw comprising two separate screws
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/58—Details
    • B29C45/60—Screws
    • 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
    • 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
    • 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
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/54—Screws with additional forward-feeding elements
    • 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
    • B29C48/55—Screws having reverse-feeding elements
    • 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
    • B29C48/57—Screws provided with kneading disc-like elements, e.g. with oval-shaped elements
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/58—Details
    • B29C45/60—Screws
    • B29C2045/605—Screws comprising a zone or shape enhancing the degassing of the plastic material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

Ślimak wytłaczarki wyposażony w kierunku osiowego przepływu tworzywa polimerowego w strefy: zasilania o długości przynajmniej 3-krotnej średnicy nominalnej części roboczej ślimaka, sprężania, uplastyczniania, rozprężania, mieszania siłami ugniatającymi, odgazowania oraz ujednorodniania i dozowania charakteryzuje się tym, że jest zaopatrzony w: strefę zasilania (3) o długości przynajmniej 3-krotnej średnicy nominalnej D części roboczej ślimaka (2), strefę pierwszego sprężania (4) o długości 7-krotnej średnicy nominalnej D części roboczej ślimaka (2), strefę intensywnego uplastyczniania (5) o długości 1,5-krotnej średnicy nominalnej D części roboczej ślimaka (2), strefę pierwszego rozprężania (6) o długości przynajmniej 2-krotnej średnicy nominalnej D części roboczej ślimaka (2), strefę drugiego sprężania (7) o długości przynajmniej 2-krotnej średnicy nominalnej D części roboczej ślimaka (2), strefę mieszania (8) o długości przynajmniej 2-krotnej średnicy nominalnej D części roboczej ślimaka (2), strefę drugiego rozprężania (9) o długości przynajmniej 1-krotnej średnicy nominalnej D części roboczej ślimaka (2), strefę odgazowania swobodnego (10) o długości przynajmniej 1-krotnej średnicy nominalnej D części roboczej ślimaka (2), strefę trzeciego sprężania (11) o długości przynajmniej 1-krotnej średnicy nominalnej D części roboczej ślimaka (2), strefę intensywnego mieszania (12) o długości przynajmniej połowy średnicy nominalnej D części roboczej ślimaka (2) i strefę dozowania (13) o długości przynajmniej 3-krotnej średnicy nominalnej D części roboczej ślimaka (2).The extruder screw is equipped in the direction of the axial flow of the polymer material into the zones of: feeding with a length of at least 3 times the nominal diameter D of the working part of the screw, compression, plasticization, expansion, mixing with kneading forces, degassing and homogenization and dosing, and is characterized in that it is provided with: a feeding zone (3) with a length of at least 3 times the nominal diameter D of the working part of the screw (2), a first compression zone (4) with a length of 7 times the nominal diameter D of the working part of the screw (2), an intensive plasticization zone (5) with a length of 1.5 times the nominal diameter D of the working part of the screw (2), a first expansion zone (6) with a length of at least 2 times the nominal diameter D of the working part of the screw (2), a second compression zone (7) with a length of at least 2 times the nominal diameter D of the working part of the screw (2), a mixing zone (8) with a length of at least 2 times the nominal diameter D of the working part of the screw (2), a second expansion zone (9) having a length of at least 1 times the nominal diameter D of the working part of the screw (2), a free degassing zone (10) having a length of at least 1 times the nominal diameter D of the working part of the screw (2), a third compression zone (11) having a length of at least 1 times the nominal diameter D of the working part of the screw (2), an intensive mixing zone (12) having a length of at least half the nominal diameter D of the working part of the screw (2) and a metering zone (13) having a length of at least 3 times the nominal diameter D of the working part of the screw (2).

PL445496A 2023-07-04 2023-07-04 Extruder screw PL248260B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL445496A PL248260B1 (en) 2023-07-04 2023-07-04 Extruder screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL445496A PL248260B1 (en) 2023-07-04 2023-07-04 Extruder screw

Publications (2)

Publication Number Publication Date
PL445496A1 true PL445496A1 (en) 2025-01-07
PL248260B1 PL248260B1 (en) 2025-11-17

Family

ID=94174491

Family Applications (1)

Application Number Title Priority Date Filing Date
PL445496A PL248260B1 (en) 2023-07-04 2023-07-04 Extruder screw

Country Status (1)

Country Link
PL (1) PL248260B1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1234672A (en) * 1967-06-13 1971-06-09
CA1114122A (en) * 1977-02-17 1981-12-15 Heinz Mewes Method and apparatus for incorporating glass fibers into thermoplastic plastics
FR2809985A1 (en) * 2000-06-07 2001-12-14 Epiplast S A Composite thermoplastic material is produced by a screw extruder charged with a mixture of plastics granules and vegetable particles to give the required strength and reinforcement at lower costs
PL196386B1 (en) * 2001-02-13 2007-12-31 Inst Przetworstwa Tworzyw Sztu Multiple-screw extrusion machine
PL439509A1 (en) * 2021-11-12 2023-05-15 Sieć Badawcza Łukasiewicz-Instytut Inżynierii Materiałów Polimerowych I Barwników Extruder screw

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1234672A (en) * 1967-06-13 1971-06-09
CA1114122A (en) * 1977-02-17 1981-12-15 Heinz Mewes Method and apparatus for incorporating glass fibers into thermoplastic plastics
FR2809985A1 (en) * 2000-06-07 2001-12-14 Epiplast S A Composite thermoplastic material is produced by a screw extruder charged with a mixture of plastics granules and vegetable particles to give the required strength and reinforcement at lower costs
PL196386B1 (en) * 2001-02-13 2007-12-31 Inst Przetworstwa Tworzyw Sztu Multiple-screw extrusion machine
PL439509A1 (en) * 2021-11-12 2023-05-15 Sieć Badawcza Łukasiewicz-Instytut Inżynierii Materiałów Polimerowych I Barwników Extruder screw

Also Published As

Publication number Publication date
PL248260B1 (en) 2025-11-17

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