JPS55132228A - Continuous production of u-shaped synthetic resin piece - Google Patents

Continuous production of u-shaped synthetic resin piece

Info

Publication number
JPS55132228A
JPS55132228A JP4062879A JP4062879A JPS55132228A JP S55132228 A JPS55132228 A JP S55132228A JP 4062879 A JP4062879 A JP 4062879A JP 4062879 A JP4062879 A JP 4062879A JP S55132228 A JPS55132228 A JP S55132228A
Authority
JP
Japan
Prior art keywords
shaped
cross
gourd
section
resin pipe
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.)
Granted
Application number
JP4062879A
Other languages
Japanese (ja)
Other versions
JPS6112778B2 (en
Inventor
Yasunori Saito
Takeshi Matsuzaki
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP4062879A priority Critical patent/JPS55132228A/en
Publication of JPS55132228A publication Critical patent/JPS55132228A/en
Publication of JPS6112778B2 publication Critical patent/JPS6112778B2/ja
Granted 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0063—Cutting longitudinally
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To simultaneously make two U-shaped pieces and reduce working cost, by extruding a thermoplastic resin pipe of cross section shaped like a hollow gourd and by cutting off the pipe along the narrow part of the cross section. CONSTITUTION:After a thermoplastic resin pipe of cross section shaped like a hollow gourd is extruded, the resin pipe is cut off along the narrow part of the gourd-shaped cross section so that two U-shaped pieces are simultaneously and continuously manufactured. To form the resin of cross section shaped like a hollow gourd, the extrusion is effectd by using a die having a gourd-shaped material discharge port 1 or by the like. Extrusion may be performed to provide notches on one or both of the inside and outside of the resin pipe in two facing positions on the narrow part and divide the pipe along the notches to facilitate the cutting-off, shape each cut-off end like a wedge and facilitate the fitting of the U-shaped piece on a protective piece.
JP4062879A 1979-04-03 1979-04-03 Continuous production of u-shaped synthetic resin piece Granted JPS55132228A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4062879A JPS55132228A (en) 1979-04-03 1979-04-03 Continuous production of u-shaped synthetic resin piece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4062879A JPS55132228A (en) 1979-04-03 1979-04-03 Continuous production of u-shaped synthetic resin piece

Publications (2)

Publication Number Publication Date
JPS55132228A true JPS55132228A (en) 1980-10-14
JPS6112778B2 JPS6112778B2 (en) 1986-04-10

Family

ID=12585798

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4062879A Granted JPS55132228A (en) 1979-04-03 1979-04-03 Continuous production of u-shaped synthetic resin piece

Country Status (1)

Country Link
JP (1) JPS55132228A (en)

Also Published As

Publication number Publication date
JPS6112778B2 (en) 1986-04-10

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