JPS5695637A - Structure of die for extrusion molding - Google Patents

Structure of die for extrusion molding

Info

Publication number
JPS5695637A
JPS5695637A JP17129779A JP17129779A JPS5695637A JP S5695637 A JPS5695637 A JP S5695637A JP 17129779 A JP17129779 A JP 17129779A JP 17129779 A JP17129779 A JP 17129779A JP S5695637 A JPS5695637 A JP S5695637A
Authority
JP
Japan
Prior art keywords
die
lip
resin
extrusion outlet
opening
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
JP17129779A
Other languages
Japanese (ja)
Inventor
Tetsuya Oguchi
Hiroshi Iwata
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP17129779A priority Critical patent/JPS5695637A/en
Publication of JPS5695637A publication Critical patent/JPS5695637A/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
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To prevent the deposition of impurity by attaching a lip of tetrafluoroethylene resin at the outer surface edges of the opening of the extrusion outlet of the die. CONSTITUTION:The lip 3 of tetrafluoroethylene resin is attached at the upper and the lower portions of the opening edges of the extrusion outlet 2 of the die 1. At the extrusion of a synthetic sheet 4 by the die 1, the slippage between the resin and the lip 3 is high, thereby enabling the prevention of resin scraps from attaching on the opening edge of the extrusion outlet 1, as well as the preventions of impurity deposition due to its accumulation, and its attachment on the sheet 4, because the Teflon lips 3, 3 having self-lubricating property are provided at the upper and the lower parts of the opening edges of the extrusion outlet 2 at the die 1.
JP17129779A 1979-12-29 1979-12-29 Structure of die for extrusion molding Pending JPS5695637A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17129779A JPS5695637A (en) 1979-12-29 1979-12-29 Structure of die for extrusion molding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17129779A JPS5695637A (en) 1979-12-29 1979-12-29 Structure of die for extrusion molding

Publications (1)

Publication Number Publication Date
JPS5695637A true JPS5695637A (en) 1981-08-03

Family

ID=15920675

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17129779A Pending JPS5695637A (en) 1979-12-29 1979-12-29 Structure of die for extrusion molding

Country Status (1)

Country Link
JP (1) JPS5695637A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6135823U (en) * 1984-08-07 1986-03-05 三井東圧化学株式会社 Lip protected mold
JPH02261622A (en) * 1989-03-31 1990-10-24 Sekisui Chem Co Ltd Structure of lip of extrusion die
JPH04131219A (en) * 1990-09-21 1992-05-01 Sekisui Chem Co Ltd Mouth piece for extruding machine
US5151234A (en) * 1989-03-31 1992-09-29 Sekisui Kagaku Kogyo Kabushiki Kaisha Method for the manufacture of thermoplastic resin sheets
US5281381A (en) * 1992-11-04 1994-01-25 Mobil Oil Corporation Method for extruding polyolefins containing vinylidene chloride polymers
JP2020055243A (en) * 2018-10-03 2020-04-09 住友ゴム工業株式会社 Die plate and rubber extruder

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6135823U (en) * 1984-08-07 1986-03-05 三井東圧化学株式会社 Lip protected mold
JPH02261622A (en) * 1989-03-31 1990-10-24 Sekisui Chem Co Ltd Structure of lip of extrusion die
US5151234A (en) * 1989-03-31 1992-09-29 Sekisui Kagaku Kogyo Kabushiki Kaisha Method for the manufacture of thermoplastic resin sheets
JPH04131219A (en) * 1990-09-21 1992-05-01 Sekisui Chem Co Ltd Mouth piece for extruding machine
US5281381A (en) * 1992-11-04 1994-01-25 Mobil Oil Corporation Method for extruding polyolefins containing vinylidene chloride polymers
JP2020055243A (en) * 2018-10-03 2020-04-09 住友ゴム工業株式会社 Die plate and rubber extruder

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