GB661556A - Improvements relating to extrusion heads of apparatus for extruding plasticised rubber and like masses - Google Patents

Improvements relating to extrusion heads of apparatus for extruding plasticised rubber and like masses

Info

Publication number
GB661556A
GB661556A GB32547/49A GB3254749A GB661556A GB 661556 A GB661556 A GB 661556A GB 32547/49 A GB32547/49 A GB 32547/49A GB 3254749 A GB3254749 A GB 3254749A GB 661556 A GB661556 A GB 661556A
Authority
GB
United Kingdom
Prior art keywords
extrusion
orifice
die plate
parts
extruding
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
GB32547/49A
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.)
Pirelli and C SpA
Original Assignee
Pirelli SpA
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 Pirelli SpA filed Critical Pirelli SpA
Publication of GB661556A publication Critical patent/GB661556A/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
    • B29C48/03—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
    • B29C48/03—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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

661,556. Extruding rubber. PIRELLI SOC PER AZIONI. Dec. 19, 1949 [Jan. 14, 1949], No. 32547/49. Class 87(ii) An extrusion head for channel section products of non-uniform thickness has a tapering deflector 7 disposed in the throughway to deflect the flow of material to the narrower parts of the orifice 9 and restrict the flow towards the wider parts to cause the speed of extrusion to be the same at all parts of the orifice. As shown, the invention is applied to the extrusion of pneumatic tyre treads, the die plate 8, having an arcuate orifice 9. The guide surface for the extruded material is provided by an ogival member 7, fixed by bolts (not shown), to the die plate 8. The die plate and member 7 are adjustable by means of nuts 10 and are held against displacement by a screw-threaded securing ring 6 provided with a buttress 14. A heating fluid may be circulated in the cavities 3.
GB32547/49A 1949-01-14 1949-12-19 Improvements relating to extrusion heads of apparatus for extruding plasticised rubber and like masses Expired GB661556A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT188500X 1949-01-14

Publications (1)

Publication Number Publication Date
GB661556A true GB661556A (en) 1951-11-21

Family

ID=11153592

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32547/49A Expired GB661556A (en) 1949-01-14 1949-12-19 Improvements relating to extrusion heads of apparatus for extruding plasticised rubber and like masses

Country Status (3)

Country Link
AT (1) AT188500B (en)
DE (1) DE820076C (en)
GB (1) GB661556A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2253449A1 (en) 2009-05-14 2010-11-24 The Goodyear Tire & Rubber Company A method and assembly for extruding a rubber compound
US10343321B2 (en) 2015-12-21 2019-07-09 The Goodycar Tire & Rubber Company Extruder die assembly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2253449A1 (en) 2009-05-14 2010-11-24 The Goodyear Tire & Rubber Company A method and assembly for extruding a rubber compound
US8002535B2 (en) 2009-05-14 2011-08-23 The Goodyear Tire & Rubber Co. Method and assembly for extruding a rubber compound
US8211343B2 (en) 2009-05-14 2012-07-03 The Goodyear Tire & Rubber Company Method and assembly for extruding a rubber compound
US10343321B2 (en) 2015-12-21 2019-07-09 The Goodycar Tire & Rubber Company Extruder die assembly

Also Published As

Publication number Publication date
DE820076C (en) 1951-11-08
AT188500B (en) 1957-01-25

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