FR2212229A2 - Extrusion press for plastics - with two sets of screws at right angles to give separate mixing and extrusion pressures - Google Patents

Extrusion press for plastics - with two sets of screws at right angles to give separate mixing and extrusion pressures

Info

Publication number
FR2212229A2
FR2212229A2 FR7246933A FR7246933A FR2212229A2 FR 2212229 A2 FR2212229 A2 FR 2212229A2 FR 7246933 A FR7246933 A FR 7246933A FR 7246933 A FR7246933 A FR 7246933A FR 2212229 A2 FR2212229 A2 FR 2212229A2
Authority
FR
France
Prior art keywords
extrusion
plastics
screws
sets
right angles
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
FR7246933A
Other languages
French (fr)
Other versions
FR2212229B2 (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.)
Andouart SA
Original Assignee
Andouart SA
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 Andouart SA filed Critical Andouart SA
Priority to FR7246933A priority Critical patent/FR2212229A2/en
Priority to GB121973A priority patent/GB1404391A/en
Priority to DE2301064A priority patent/DE2301064B2/en
Priority to US322275A priority patent/US3907259A/en
Priority to JP48005841A priority patent/JPS5133155A/ja
Priority to IT19121/73A priority patent/IT978082B/en
Publication of FR2212229A2 publication Critical patent/FR2212229A2/en
Application granted granted Critical
Publication of FR2212229B2 publication Critical patent/FR2212229B2/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
    • B29C48/395—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
    • 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)

Abstract

The granular feed passes into an initial cylinder where opposing screws give the required mixing and kneading action before the malleable material enters the second screw housing through a 90 degrees turn to enter the screw press for extrusion. The purpose is to provide independent stages for mixing and extrusion, with a continuous feed path between them, giving precise control for each stage, to obtain a consistent product.
FR7246933A 1972-01-10 1972-12-29 Extrusion press for plastics - with two sets of screws at right angles to give separate mixing and extrusion pressures Granted FR2212229A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR7246933A FR2212229A2 (en) 1972-12-29 1972-12-29 Extrusion press for plastics - with two sets of screws at right angles to give separate mixing and extrusion pressures
GB121973A GB1404391A (en) 1972-01-10 1973-01-09 Extrusion machine
DE2301064A DE2301064B2 (en) 1972-01-10 1973-01-10 Extruder for plasticizable plastics
US322275A US3907259A (en) 1972-01-10 1973-01-10 Extrusion machine
JP48005841A JPS5133155A (en) 1972-01-10 1973-01-10
IT19121/73A IT978082B (en) 1972-01-10 1973-01-10 PLASTIC MATERIAL DRAWING MACHINE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7246933A FR2212229A2 (en) 1972-12-29 1972-12-29 Extrusion press for plastics - with two sets of screws at right angles to give separate mixing and extrusion pressures

Publications (2)

Publication Number Publication Date
FR2212229A2 true FR2212229A2 (en) 1974-07-26
FR2212229B2 FR2212229B2 (en) 1976-10-29

Family

ID=9109523

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7246933A Granted FR2212229A2 (en) 1972-01-10 1972-12-29 Extrusion press for plastics - with two sets of screws at right angles to give separate mixing and extrusion pressures

Country Status (1)

Country Link
FR (1) FR2212229A2 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
FR2212229B2 (en) 1976-10-29

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