JPS57207046A - Method of adjusting thickness deviation of extrusion crosshead and apparatus therefor - Google Patents

Method of adjusting thickness deviation of extrusion crosshead and apparatus therefor

Info

Publication number
JPS57207046A
JPS57207046A JP56092551A JP9255181A JPS57207046A JP S57207046 A JPS57207046 A JP S57207046A JP 56092551 A JP56092551 A JP 56092551A JP 9255181 A JP9255181 A JP 9255181A JP S57207046 A JPS57207046 A JP S57207046A
Authority
JP
Japan
Prior art keywords
resin
crosshead
thickness deviation
adjusting
ring
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.)
Pending
Application number
JP56092551A
Other languages
Japanese (ja)
Inventor
Toshio Onuma
Hikari Yasuhara
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.)
Fujikura Ltd
Original Assignee
Fujikura 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 Fujikura Ltd filed Critical Fujikura Ltd
Priority to JP56092551A priority Critical patent/JPS57207046A/en
Publication of JPS57207046A publication Critical patent/JPS57207046A/en
Pending 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
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92019—Pressure
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92323—Location or phase of measurement
    • B29C2948/92361—Extrusion unit
    • B29C2948/92409—Die; Nozzle zone
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92514—Pressure
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92904—Die; Nozzle zone
    • 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
    • B29C48/05—Filamentary, e.g. strands

Abstract

PURPOSE:To form a crosshead through which the adjustment of thickness deviation can be readily done, by installing coaxially with a nipple an adjusting ring in a resin passage at an intermediate part between an extrusion die and a resin extruding section. CONSTITUTION:Molten resin is fed from an extruder 1 via an extruding part 51 to the crosshead provided to an extrusion die 4 at the end of resin passage 5 defined between the crosshead body 2 and a nipple 3, and is caused to adhere around a conductive element omega fed in a direction shown by the arrow through the nipple 3 to form a covered line 10. In the intermediate part between the extrusion die 4 and the resin extruding part 51, the adjusting ring 7 that can be moved by four adjusting bolts 8 is positioned for said crosshead at right angles crossing the resin passage 5. Therefore the resin introduced in the passage 5 is squeezed at the ring 7, and the pressure difference in the circumferential direction becomes substantially uniform, while by adjusting the ring 7 radially such that the values indicated on pressure guages 9A, 9B (shown), 9C, 9D (not shown) are all to be the same, the thickness deviation of the covered wire 10 is further eliminated.
JP56092551A 1981-06-16 1981-06-16 Method of adjusting thickness deviation of extrusion crosshead and apparatus therefor Pending JPS57207046A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56092551A JPS57207046A (en) 1981-06-16 1981-06-16 Method of adjusting thickness deviation of extrusion crosshead and apparatus therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56092551A JPS57207046A (en) 1981-06-16 1981-06-16 Method of adjusting thickness deviation of extrusion crosshead and apparatus therefor

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP62254710A Division JPS63118227A (en) 1987-10-12 1987-10-12 Adjusting thickness deviation of extrusion crosshead

Publications (1)

Publication Number Publication Date
JPS57207046A true JPS57207046A (en) 1982-12-18

Family

ID=14057531

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56092551A Pending JPS57207046A (en) 1981-06-16 1981-06-16 Method of adjusting thickness deviation of extrusion crosshead and apparatus therefor

Country Status (1)

Country Link
JP (1) JPS57207046A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6172516A (en) * 1984-09-17 1986-04-14 Toyoda Gosei Co Ltd Rubber extruder
US4605525A (en) * 1985-02-04 1986-08-12 Northern Telecom Limited Method for forming insulating electrical conductor
JP2008030485A (en) * 2006-07-27 2008-02-14 Soc De Technol Michelin Code housing device with movable die
CN110733169A (en) * 2019-10-09 2020-01-31 宁波海曙广运机电工程有限公司 optical cable extrusion molding die convenient for threading optical fiber

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4944869B1 (en) * 1968-10-29 1974-11-30

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4944869B1 (en) * 1968-10-29 1974-11-30

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6172516A (en) * 1984-09-17 1986-04-14 Toyoda Gosei Co Ltd Rubber extruder
US4605525A (en) * 1985-02-04 1986-08-12 Northern Telecom Limited Method for forming insulating electrical conductor
JP2008030485A (en) * 2006-07-27 2008-02-14 Soc De Technol Michelin Code housing device with movable die
CN110733169A (en) * 2019-10-09 2020-01-31 宁波海曙广运机电工程有限公司 optical cable extrusion molding die convenient for threading optical fiber

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