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FR2411079A1 - IMPROVEMENTS TO SCREWS FOR EXTRUDING MACHINES - Google Patents

IMPROVEMENTS TO SCREWS FOR EXTRUDING MACHINES

Info

Publication number
FR2411079A1
FR2411079A1 FR7832046A FR7832046A FR2411079A1 FR 2411079 A1 FR2411079 A1 FR 2411079A1 FR 7832046 A FR7832046 A FR 7832046A FR 7832046 A FR7832046 A FR 7832046A FR 2411079 A1 FR2411079 A1 FR 2411079A1
Authority
FR
France
Prior art keywords
screws
extruding machines
fins
screw
extruders
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.)
Granted
Application number
FR7832046A
Other languages
French (fr)
Other versions
FR2411079B3 (en
Inventor
Michael Ian Iddon
Donald Milne Turner
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.)
Iddon Brothers Ltd
Original Assignee
Iddon Brothers Ltd
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 Iddon Brothers Ltd filed Critical Iddon Brothers Ltd
Publication of FR2411079A1 publication Critical patent/FR2411079A1/en
Application granted granted Critical
Publication of FR2411079B3 publication Critical patent/FR2411079B3/fr
Granted legal-status Critical Current

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
    • B29C48/50—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
    • B29C48/03—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)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

VIS D'EXTRUDEUSE. SUR UNE ZONE DE SA LONGUEUR ELLE COMPORTE DANS LES CANAUX DELIMITES PAR SES FILETS 8 DES AILETTES 2 PLUS INCLINEES QUE CEUX-CI ET DES RAMPES 4 QUI S'ARRETENT A UNE FAIBLE DISTANCE DE LA PAROI DU FUT DANS LEQUEL TOURNE LA VIS, DE MANIERE A ECRASER LA MATIERE QUE LEUR RENVOIENT LES AILETTES. APPLICATION AUX EXTRUDEUSES POUR CAOUTCHOUC ET MATIERES ANALOGUES.EXTRUDER SCREW. ON AN AREA OF ITS LENGTH IT CONTAINS IN THE CHANNELS DELIMITED BY ITS THREADS 8 FINS 2 MORE INCLINED THAN THOSE AND RAMPS 4 WHICH STOP A SHORT DISTANCE FROM THE WALL OF THE SHAFT IN WHICH THE SCREW TURNS, IN A MANNER TO CRUSH THE MATERIAL RETURNED TO THEM BY THE FINS. APPLICATION TO EXTRUDERS FOR RUBBER AND SIMILAR MATERIALS.

FR7832046A 1977-12-08 1978-11-06 IMPROVEMENTS TO SCREWS FOR EXTRUDING MACHINES Granted FR2411079A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB51234/77A GB1591730A (en) 1977-12-08 1977-12-08 Screws for extruding machines

Publications (2)

Publication Number Publication Date
FR2411079A1 true FR2411079A1 (en) 1979-07-06
FR2411079B3 FR2411079B3 (en) 1981-09-11

Family

ID=10459176

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7832046A Granted FR2411079A1 (en) 1977-12-08 1978-11-06 IMPROVEMENTS TO SCREWS FOR EXTRUDING MACHINES

Country Status (3)

Country Link
DE (1) DE7832143U1 (en)
FR (1) FR2411079A1 (en)
GB (1) GB1591730A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0644034A1 (en) * 1993-09-16 1995-03-22 General Electric Company Single screw extruder capable of generating chaotic mixing
WO1995030530A1 (en) * 1994-05-10 1995-11-16 Pohang Iron & Steel Co., Ltd. Chaos screw for single screw extruder

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2137893A (en) * 1983-04-13 1984-10-17 Nat Res Dev Improvements in or relating to conveying screws
DE3627428A1 (en) * 1986-08-13 1988-02-18 Gl Upravlenie Str V Primorskom Continuous rotary mixer-disperser

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0644034A1 (en) * 1993-09-16 1995-03-22 General Electric Company Single screw extruder capable of generating chaotic mixing
US5551777A (en) * 1993-09-16 1996-09-03 General Electric Company Single screw extruder capable of generating chaotic mixing
WO1995030530A1 (en) * 1994-05-10 1995-11-16 Pohang Iron & Steel Co., Ltd. Chaos screw for single screw extruder

Also Published As

Publication number Publication date
FR2411079B3 (en) 1981-09-11
GB1591730A (en) 1981-06-24
DE7832143U1 (en) 1979-02-15

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