GB1274907A - A method of and an apparatus for continuously producing vulcanisable mixtures - Google Patents

A method of and an apparatus for continuously producing vulcanisable mixtures

Info

Publication number
GB1274907A
GB1274907A GB40694/69A GB4069469A GB1274907A GB 1274907 A GB1274907 A GB 1274907A GB 40694/69 A GB40694/69 A GB 40694/69A GB 4069469 A GB4069469 A GB 4069469A GB 1274907 A GB1274907 A GB 1274907A
Authority
GB
United Kingdom
Prior art keywords
inlet
throttling section
screw
aug
fed
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
GB40694/69A
Inventor
Rudolf Paul Fritsch
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE19681779465 external-priority patent/DE1779465C/en
Application filed by Individual filed Critical Individual
Publication of GB1274907A publication Critical patent/GB1274907A/en
Expired 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
    • B29C48/68—Barrels or cylinders
    • 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
    • B29C48/03—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
    • 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
    • B29C48/405—Intermeshing co-rotating screws

Landscapes

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

Abstract

1,274,907. Screw mixers. R. P. FRITSCH. 14 Aug., 1969 [14 Aug., 1968], No. 40694/69. Heading B1C. [Also in Division B5] A single or multiple-intermeshing screw mixer or extruder has two inlets 1, 2 and a controllably variable throttling section 4 which generates back-pressure in a zone extending upstream at least as far as the downstream edge of the inlet 1. In operation the screw(s) are rotated at a constant speed and the primary component is fed ad lib to the inlet 1 and will be taken up at a rate dependent on the back pressure. Conventional means (not described) are provided to meter other mixture components into the inlet 2, downstream of the throttling section 4, in dependence upon the rate of introduction of the primary component. As shown a slide 6 enables both the throttling section 4 and the position of the downstream edge of the inlet 1 to be adjusted. There are cavities 8 for a heating or cooling medium. The principal component in the form of slabs may be fed by a vacuum lift and cutter both photo-or electrically - controlled. Multiple screws are preferably co-rotating.
GB40694/69A 1968-08-14 1969-08-14 A method of and an apparatus for continuously producing vulcanisable mixtures Expired GB1274907A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681779465 DE1779465C (en) 1968-08-14 Process and device for the continuous production of vulcanizable mixtures

Publications (1)

Publication Number Publication Date
GB1274907A true GB1274907A (en) 1972-05-17

Family

ID=5703913

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40694/69A Expired GB1274907A (en) 1968-08-14 1969-08-14 A method of and an apparatus for continuously producing vulcanisable mixtures

Country Status (2)

Country Link
FR (1) FR2037012A1 (en)
GB (1) GB1274907A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2450704A (en) * 2007-07-03 2009-01-07 Mars Inc Screw extruder with a fluid inlet and a method of extruding

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2450704A (en) * 2007-07-03 2009-01-07 Mars Inc Screw extruder with a fluid inlet and a method of extruding

Also Published As

Publication number Publication date
DE1779465B2 (en) 1972-08-31
FR2037012A1 (en) 1970-12-31
DE1779465A1 (en) 1972-03-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee