JPS56136328A - Extrusion die - Google Patents

Extrusion die

Info

Publication number
JPS56136328A
JPS56136328A JP3989780A JP3989780A JPS56136328A JP S56136328 A JPS56136328 A JP S56136328A JP 3989780 A JP3989780 A JP 3989780A JP 3989780 A JP3989780 A JP 3989780A JP S56136328 A JPS56136328 A JP S56136328A
Authority
JP
Japan
Prior art keywords
passage
slit
die
provided downstream
length
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
JP3989780A
Other languages
Japanese (ja)
Other versions
JPS6037781B2 (en
Inventor
Shigeru Hattori
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP55039897A priority Critical patent/JPS6037781B2/en
Publication of JPS56136328A publication Critical patent/JPS56136328A/en
Publication of JPS6037781B2 publication Critical patent/JPS6037781B2/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
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • B29C48/31—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets being adjustable, i.e. having adjustable exit sections
    • B29C48/313—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets being adjustable, i.e. having adjustable exit sections by positioning the die lips
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/255—Flow control means, e.g. valves
    • B29C48/2556—Flow control means, e.g. valves provided in or in the proximity of dies
    • 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
    • B29C48/25—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
    • B29C48/31—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets being adjustable, i.e. having adjustable exit sections

Landscapes

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

Abstract

PURPOSE:To obtain the titled die which has an evenly broadened slit and produces a uniform distribution of flow rate of a material by a method wherein a passage having a length gradually increasing from the center part toward the end parts of the die is provided downstream of a straight manifold, and a slit having a gradually decreasing length is provided downstream the passage. CONSTITUTION:The passage 14 having a gap slightly smaller than that of the straight manifold 5 is provided downstream the manifold 5 in such a manner that the length of the passage 14 increases from the central part toward the end parts of the die. The slit 15 having a gap greatly reduced as compared with that of the passage 14 is provided downstream the passage 14 in such a manner that the length of the slit 15 is decreased from the central part toward the end parts of the die. The resin supplied through a resin inlet port 4 flows into the manifold 5, and is spread as indicated by arrows to exhibit a uniform distribution of flow rate while passing through the passage 14 and the slit 15.
JP55039897A 1980-03-28 1980-03-28 extrusion die Expired JPS6037781B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55039897A JPS6037781B2 (en) 1980-03-28 1980-03-28 extrusion die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55039897A JPS6037781B2 (en) 1980-03-28 1980-03-28 extrusion die

Publications (2)

Publication Number Publication Date
JPS56136328A true JPS56136328A (en) 1981-10-24
JPS6037781B2 JPS6037781B2 (en) 1985-08-28

Family

ID=12565744

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55039897A Expired JPS6037781B2 (en) 1980-03-28 1980-03-28 extrusion die

Country Status (1)

Country Link
JP (1) JPS6037781B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60242032A (en) * 1984-05-17 1985-12-02 Toowa:Kk Screen pack fitting construction for flat die for molding synthetic resin
EP0646450A1 (en) * 1993-09-07 1995-04-05 EXTRUSION DIES, Inc. Apparatus for extruding thermoplastic materials
NL1009929C2 (en) * 1997-08-22 2001-12-19 Fuji Photo Film Co Ltd A method of manufacturing multilayer films and an extrusion die therefor.
FR2813551A1 (en) * 2000-09-01 2002-03-08 Gaillon Line manufacturing extruded plastic has horizontal extrusion head with pipe supplying material directly to calender with two rollers having vertical axes

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01160281U (en) * 1988-04-27 1989-11-07
EP0781641B1 (en) 1995-12-28 2001-11-07 Fuji Photo Film Co., Ltd. Method for forming multilayer sheet or multilayer film

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60242032A (en) * 1984-05-17 1985-12-02 Toowa:Kk Screen pack fitting construction for flat die for molding synthetic resin
JPH0133334B2 (en) * 1984-05-17 1989-07-12 Toowa Jugen
EP0646450A1 (en) * 1993-09-07 1995-04-05 EXTRUSION DIES, Inc. Apparatus for extruding thermoplastic materials
NL1009929C2 (en) * 1997-08-22 2001-12-19 Fuji Photo Film Co Ltd A method of manufacturing multilayer films and an extrusion die therefor.
US6461138B2 (en) 1997-08-22 2002-10-08 Fuji Photo Film Co., Ltd. Device for forming multilayer sheets and extrusion die therefor
FR2813551A1 (en) * 2000-09-01 2002-03-08 Gaillon Line manufacturing extruded plastic has horizontal extrusion head with pipe supplying material directly to calender with two rollers having vertical axes

Also Published As

Publication number Publication date
JPS6037781B2 (en) 1985-08-28

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