GB892302A - Improvements in an extrusion head for the simultaneous application of two layers of thermoplastic material to an inner core - Google Patents

Improvements in an extrusion head for the simultaneous application of two layers of thermoplastic material to an inner core

Info

Publication number
GB892302A
GB892302A GB44154/59A GB4415459A GB892302A GB 892302 A GB892302 A GB 892302A GB 44154/59 A GB44154/59 A GB 44154/59A GB 4415459 A GB4415459 A GB 4415459A GB 892302 A GB892302 A GB 892302A
Authority
GB
United Kingdom
Prior art keywords
die
unit
tip unit
eccentricity
varied
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
GB44154/59A
Inventor
Richard Humpidge
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.)
Fawcett Preston & Co Ltd
Original Assignee
Fawcett Preston & Co 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 Fawcett Preston & Co Ltd filed Critical Fawcett Preston & Co Ltd
Priority to GB44154/59A priority Critical patent/GB892302A/en
Publication of GB892302A publication Critical patent/GB892302A/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
    • B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
    • 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
    • B29C48/06—Rod-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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/304—Extrusion nozzles or dies specially adapted for bringing together components, e.g. melts within the die
    • 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
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/20—Inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3462—Cables

Abstract

892,302. Extrusion heads. FAWCETT PRESTON & CO. Ltd. Dec. 22, 1960 [Dec. 29, 1959], No. 44154/59. Class 87(2). An extrusion head for the simultaneous application of two layers of an extrudible material to an inner cylindrical core, includes an inner tip unit j, a combined tip and die unit e, and a die k and sleeve means for varying the eccentricity of the inner tip unit and the die. The eccentricity of the inner tip unit j may be varied by rotation of the tip unit in the screw threads o and h<SP>1</SP> which are slightly eccentrically mounted on the tip unit j, and in the sleeve h respectively. When the desired degree of eccentricity has been obtained the tip unit j may be locked in position by means of a nut p acting on a sleeve g acting on a shoulder on the tip unit. The parts g, h, and j when locked together may be rotated in the holder f. The thickness of the inner coating on the core may be varied by adjustment of a nut s on a fixed stud t, the nut bearing against a gland ring u screw threaded on the sleeve g and locked in position by a screw u<SP>1</SP>. The eccentricity of the die k may be varied by means of radial screws m acting on the die holder l and serving also to lock it in position. The thickness of the outer covering on the core may be varied by adjustment of an annular screw threaded ring q bearing on the die holder l. Thermoplastic material to provide the inner layer covering is fed from an extruder screw through passages b, b<SP>1</SP> to the annular space between the tip unit j and unit e, and material to form the outer covering is fed through passage a to the annular space between the unit e and the die k. The core tube holders d, fare held in position by a retaining ring v, their rotation being prevented by a key w.
GB44154/59A 1959-12-29 1959-12-29 Improvements in an extrusion head for the simultaneous application of two layers of thermoplastic material to an inner core Expired GB892302A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB44154/59A GB892302A (en) 1959-12-29 1959-12-29 Improvements in an extrusion head for the simultaneous application of two layers of thermoplastic material to an inner core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB44154/59A GB892302A (en) 1959-12-29 1959-12-29 Improvements in an extrusion head for the simultaneous application of two layers of thermoplastic material to an inner core

Publications (1)

Publication Number Publication Date
GB892302A true GB892302A (en) 1962-03-28

Family

ID=10432034

Family Applications (1)

Application Number Title Priority Date Filing Date
GB44154/59A Expired GB892302A (en) 1959-12-29 1959-12-29 Improvements in an extrusion head for the simultaneous application of two layers of thermoplastic material to an inner core

Country Status (1)

Country Link
GB (1) GB892302A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3323172A (en) * 1965-01-22 1967-06-06 Weyerhaeuser Co Extrusion apparatus
US3349435A (en) * 1965-09-21 1967-10-31 Danadyne Inc Precision die for manufacture of foamed plastics and the like
US4484877A (en) * 1981-11-27 1984-11-27 Mannesmann Ag Twin-nozzle extrusion head
AT384579B (en) * 1981-05-27 1987-12-10 Mannesmann Ag METHOD AND DEVICE FOR PRODUCING A SHEATHING OF STEEL TUBES CONSTRUCTED FROM THERMOPLASTIC PLASTIC
US5108683A (en) * 1991-04-05 1992-04-28 Vijay Anand Apparatus and method for extruding single and multiple layers of plastic
CN106903860A (en) * 2017-03-30 2017-06-30 安庆市汇东机械有限责任公司 It is classified the cable extruding machine head of guide
CN109228077A (en) * 2018-10-22 2019-01-18 洛阳双瑞万基钛业有限公司 The production mold of connecting pipe between a kind of boiling chloridizing furnace and cyclone separator
CN111497183A (en) * 2020-04-30 2020-08-07 常州窗友塑胶有限公司 Sealing rubber strip extrusion die
CN116330615A (en) * 2023-05-29 2023-06-27 天津亿鑫通科技股份有限公司 Double-station screw extruder for cable production

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3323172A (en) * 1965-01-22 1967-06-06 Weyerhaeuser Co Extrusion apparatus
US3349435A (en) * 1965-09-21 1967-10-31 Danadyne Inc Precision die for manufacture of foamed plastics and the like
AT384579B (en) * 1981-05-27 1987-12-10 Mannesmann Ag METHOD AND DEVICE FOR PRODUCING A SHEATHING OF STEEL TUBES CONSTRUCTED FROM THERMOPLASTIC PLASTIC
US4484877A (en) * 1981-11-27 1984-11-27 Mannesmann Ag Twin-nozzle extrusion head
US5108683A (en) * 1991-04-05 1992-04-28 Vijay Anand Apparatus and method for extruding single and multiple layers of plastic
CN106903860A (en) * 2017-03-30 2017-06-30 安庆市汇东机械有限责任公司 It is classified the cable extruding machine head of guide
CN109228077A (en) * 2018-10-22 2019-01-18 洛阳双瑞万基钛业有限公司 The production mold of connecting pipe between a kind of boiling chloridizing furnace and cyclone separator
CN109228077B (en) * 2018-10-22 2024-03-01 洛阳双瑞万基钛业有限公司 Manufacturing die for connecting pipeline between boiling chlorination furnace and cyclone separator
CN111497183A (en) * 2020-04-30 2020-08-07 常州窗友塑胶有限公司 Sealing rubber strip extrusion die
CN116330615A (en) * 2023-05-29 2023-06-27 天津亿鑫通科技股份有限公司 Double-station screw extruder for cable production
CN116330615B (en) * 2023-05-29 2023-07-21 天津亿鑫通科技股份有限公司 Double-station screw extruder for cable production

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