GB620684A - Improvements in screw presses - Google Patents

Improvements in screw presses

Info

Publication number
GB620684A
GB620684A GB13331/46A GB1333146A GB620684A GB 620684 A GB620684 A GB 620684A GB 13331/46 A GB13331/46 A GB 13331/46A GB 1333146 A GB1333146 A GB 1333146A GB 620684 A GB620684 A GB 620684A
Authority
GB
United Kingdom
Prior art keywords
screws
screw
screw presses
diameter
towards
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB13331/46A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LAVORAZIONE MAT PLAST
Original Assignee
LAVORAZIONE MAT PLAST
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 LAVORAZIONE MAT PLAST filed Critical LAVORAZIONE MAT PLAST
Publication of GB620684A publication Critical patent/GB620684A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/22—Extrusion presses; Dies therefor
    • B30B11/24—Extrusion presses; Dies therefor using screws or worms
    • B30B11/243—Extrusion presses; Dies therefor using screws or worms using two or more screws working in the same chamber
    • 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
    • B29C48/40—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 two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B29C48/402—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 two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders the screws having intermeshing parts
    • 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
    • B29C48/52—Screws with an outer diameter varying along the longitudinal axis, e.g. for obtaining different thread clearance
    • B29C48/525—Conical 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
    • B29C48/03—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)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
GB13331/46A 1943-05-06 1946-05-02 Improvements in screw presses Expired GB620684A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT620684X 1943-05-06

Publications (1)

Publication Number Publication Date
GB620684A true GB620684A (en) 1949-03-29

Family

ID=11293273

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13331/46A Expired GB620684A (en) 1943-05-06 1946-05-02 Improvements in screw presses

Country Status (5)

Country Link
BE (1) BE456090A (de)
CH (1) CH242208A (de)
DE (1) DE883338C (de)
FR (1) FR904317A (de)
GB (1) GB620684A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2484327A1 (fr) * 1980-06-13 1981-12-18 Stord Bartz As Presse a vis pour expulser en continu du fluide de diverses masses humides
DE3152097A1 (de) * 1980-06-13 1982-08-26 Stord Bartz As Screw press arrangement
GB2352777A (en) * 1999-05-07 2001-02-07 Ind Tech Res Inst Double screw rotor assembly

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE879861C (de) * 1950-08-04 1953-06-15 August Georg Schaefer Fuellwalze fuer Schneckenpressen zur Herstellung von duennwandigen, masshaltigen Strangartikeln, insbesondere von Umhuellungen fuer elektrische Leitungen
DE2446420C2 (de) * 1974-09-28 1982-07-15 Krauss-Maffei AG, 8000 München Schneckenstrangpresse zum Verarbeiten von Kunststoffen
AT376397B (de) * 1982-12-21 1984-11-12 Cincinnati Milacron Austria Schneckenstrangpresse
DE3888533T3 (de) * 1988-09-14 2004-03-04 Fratelli Babbini & C. Sas, Civitella Di Romagna Entwässerungsschneckenpresse mit zwei oder mehr schraubenförmigen Elementen mit ineinandergreifenden Profilen.
DE4115583A1 (de) * 1991-05-13 1992-11-19 Johannes Dr Ing Weber Mehrfachschneckenextruder

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2484327A1 (fr) * 1980-06-13 1981-12-18 Stord Bartz As Presse a vis pour expulser en continu du fluide de diverses masses humides
WO1981003639A1 (en) * 1980-06-13 1981-12-24 Stord Bartz As Screw press arrangement
DE3152097A1 (de) * 1980-06-13 1982-08-26 Stord Bartz As Screw press arrangement
GB2352777A (en) * 1999-05-07 2001-02-07 Ind Tech Res Inst Double screw rotor assembly
GB2352777B (en) * 1999-05-07 2004-01-07 Ind Tech Res Inst Double screw rotor assembly

Also Published As

Publication number Publication date
FR904317A (fr) 1945-11-02
BE456090A (de) 1900-01-01
CH242208A (it) 1946-04-30
DE883338C (de) 1956-03-08

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