GB759079A - Improvements in or relating to extruders for making tubes - Google Patents

Improvements in or relating to extruders for making tubes

Info

Publication number
GB759079A
GB759079A GB9885/54A GB988554A GB759079A GB 759079 A GB759079 A GB 759079A GB 9885/54 A GB9885/54 A GB 9885/54A GB 988554 A GB988554 A GB 988554A GB 759079 A GB759079 A GB 759079A
Authority
GB
United Kingdom
Prior art keywords
strainer plate
shaft
secured
head
mandrel
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
GB9885/54A
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.)
Bridgestone Firestone Inc
Original Assignee
Firestone Tire and Rubber Co
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 Firestone Tire and Rubber Co filed Critical Firestone Tire and Rubber Co
Publication of GB759079A publication Critical patent/GB759079A/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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/27—Cleaning; Purging; Avoiding contamination
    • B29C48/272—Cleaning; Purging; Avoiding contamination of dies
    • 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
    • B29C48/27—Cleaning; Purging; Avoiding contamination
    • B29C48/2725—Cleaning; Purging; Avoiding contamination of filters
    • B29C48/2735—Cleaning; Purging; Avoiding contamination of filters using scrapers

Abstract

759,079. Extruding rubber &c. tubes. FIRESTONE TIRE & RUBBER CO. April 5, 1954 [Dec. 11, 1953], No. 9885/54. Class 87(2) The mandrel 22 that co - operates with the die 4 to form the annular extrusion orifice is mounted on a shaft 18 that extends forwardly from a strainer plate 12; this arrangement obviates the need for a spider to support the mandrel. As shown, the shaft is integral with the strainer plate. The rear of the strainer plate has a bulbous portion 17 that fits into a socket 9 formed in a wiper 7 secured to the screw 6. One or more screens 11 may be fitted to the rear of the strainer plate. The shaft 18 is heated by steam passing through inlet 15, Fig. 3, to a chamber C ,Fig. 2, in the shaft, this chamber containing a (stationary) worm 19; condensate escapes through passage 44. The strainer plate is secured to a head 3, this head being clamped to an adapter 2 by two semi-circular shoes 27, 28. The adapter is secured to the screw extrusion barrel 1. Soapstone is fed to an inlet 21, Fig. 1, and thence through a conduit 20 into the extruded tube. The head 3 is heated by steam entering at 37, condensate leaving at 43. The die is adjustable by means of nuts 35.
GB9885/54A 1953-12-11 1954-04-05 Improvements in or relating to extruders for making tubes Expired GB759079A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US759079XA 1953-12-11 1953-12-11

Publications (1)

Publication Number Publication Date
GB759079A true GB759079A (en) 1956-10-10

Family

ID=22128690

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9885/54A Expired GB759079A (en) 1953-12-11 1954-04-05 Improvements in or relating to extruders for making tubes

Country Status (1)

Country Link
GB (1) GB759079A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1161412B (en) * 1960-05-28 1964-01-16 Kalle Ag Adjustable ring nozzle
DE1191096B (en) * 1957-07-29 1965-04-15 Farrel Birmingham Co Inc Granulating device for plastic masses
DE2324581A1 (en) * 1973-05-16 1974-12-05 Leistritz Maschfabrik Paul Impurities removed from extruder material - by fitting curved scrapers on perforated discs at the nozzle end
US11103812B2 (en) * 2015-04-30 2021-08-31 Fimic Srl Filter for plastic material
CN116619684A (en) * 2023-07-25 2023-08-22 复星科技集团有限公司 Sizing material filtering structure for rubber injection machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1191096B (en) * 1957-07-29 1965-04-15 Farrel Birmingham Co Inc Granulating device for plastic masses
DE1161412B (en) * 1960-05-28 1964-01-16 Kalle Ag Adjustable ring nozzle
DE2324581A1 (en) * 1973-05-16 1974-12-05 Leistritz Maschfabrik Paul Impurities removed from extruder material - by fitting curved scrapers on perforated discs at the nozzle end
US11103812B2 (en) * 2015-04-30 2021-08-31 Fimic Srl Filter for plastic material
CN116619684A (en) * 2023-07-25 2023-08-22 复星科技集团有限公司 Sizing material filtering structure for rubber injection machine
CN116619684B (en) * 2023-07-25 2023-10-10 复星科技集团有限公司 Sizing material filtering structure for rubber injection machine

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