JPS5546939A - Manufacture of damper - Google Patents

Manufacture of damper

Info

Publication number
JPS5546939A
JPS5546939A JP12101578A JP12101578A JPS5546939A JP S5546939 A JPS5546939 A JP S5546939A JP 12101578 A JP12101578 A JP 12101578A JP 12101578 A JP12101578 A JP 12101578A JP S5546939 A JPS5546939 A JP S5546939A
Authority
JP
Japan
Prior art keywords
extruding
slantly
rotated
die
damper
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
JP12101578A
Other languages
Japanese (ja)
Other versions
JPS5850580B2 (en
Inventor
Shozo Kajikawa
Hiroshi Yokoo
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.)
NAGANO NOBAFUOOMU KK
Original Assignee
NAGANO NOBAFUOOMU KK
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 NAGANO NOBAFUOOMU KK filed Critical NAGANO NOBAFUOOMU KK
Priority to JP53121015A priority Critical patent/JPS5850580B2/en
Publication of JPS5546939A publication Critical patent/JPS5546939A/en
Publication of JPS5850580B2 publication Critical patent/JPS5850580B2/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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
    • B29C44/507—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through an annular 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
    • B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29L2028/00—Nets or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
  • Packaging Frangible Articles (AREA)

Abstract

PURPOSE:To manufacture a nit-like damper consisting of strand portions with a small lateral extensibility and a number of slantly-intersecting portions by extruding foam resin while sliding one set of dies provided with a plurality of extruding grooves to be periodically connected zigzag. CONSTITUTION:Extruding grooves 78 with a semi-circular sectional shape to be periodically connected zigzag are provided in the inner face of an outer die 1 rotated with the clutch pawls 5 of a clutch rotated by a driving device 4 and the outer face of an inner die 2 rotated by a driving device 6 to slide in an opposite direction to the die 1. When the foam resin extruded from an extruding machine 10 is extruded through the extruding grooves 7 and 8 of dies 1 and 2 rotating in opposite direction to each other after supplied to a resin reservoir A through a flow cource B in a fixed pipe 16, strands 7a and 8a slantly intersect each other to combinedly form meshes 9, and a net-like damper having a laterally-intersecting band E with width H is obtained at slantly-neighbouring meshes.
JP53121015A 1978-09-30 1978-09-30 Manufacturing method of rope-shaped cushioning material Expired JPS5850580B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53121015A JPS5850580B2 (en) 1978-09-30 1978-09-30 Manufacturing method of rope-shaped cushioning material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53121015A JPS5850580B2 (en) 1978-09-30 1978-09-30 Manufacturing method of rope-shaped cushioning material

Publications (2)

Publication Number Publication Date
JPS5546939A true JPS5546939A (en) 1980-04-02
JPS5850580B2 JPS5850580B2 (en) 1983-11-11

Family

ID=14800686

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53121015A Expired JPS5850580B2 (en) 1978-09-30 1978-09-30 Manufacturing method of rope-shaped cushioning material

Country Status (1)

Country Link
JP (1) JPS5850580B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010158894A (en) * 2010-01-28 2010-07-22 Daicel Novafoam Ltd Method of manufacturing foamed net

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60172497U (en) * 1984-04-24 1985-11-15 ソニー株式会社 wideband microphone
JPS6271400A (en) * 1985-09-25 1987-04-02 Matsushita Electric Ind Co Ltd Coaxial flat type speaker unit
JPH01135895U (en) * 1988-03-10 1989-09-18
JP4746796B2 (en) * 2000-11-29 2011-08-10 ダイセルノバフォーム株式会社 Foam net

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010158894A (en) * 2010-01-28 2010-07-22 Daicel Novafoam Ltd Method of manufacturing foamed net

Also Published As

Publication number Publication date
JPS5850580B2 (en) 1983-11-11

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