JPS5784830A - Extruding screw of thermoplastic resin - Google Patents

Extruding screw of thermoplastic resin

Info

Publication number
JPS5784830A
JPS5784830A JP55161434A JP16143480A JPS5784830A JP S5784830 A JPS5784830 A JP S5784830A JP 55161434 A JP55161434 A JP 55161434A JP 16143480 A JP16143480 A JP 16143480A JP S5784830 A JPS5784830 A JP S5784830A
Authority
JP
Japan
Prior art keywords
molten material
subsidary
flights
grooves
principal
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
JP55161434A
Other languages
Japanese (ja)
Inventor
Teiji Shimizu
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.)
Shibaura Machine Co Ltd
Original Assignee
Toshiba Machine Co 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 Toshiba Machine Co Ltd filed Critical Toshiba Machine Co Ltd
Priority to JP55161434A priority Critical patent/JPS5784830A/en
Publication of JPS5784830A publication Critical patent/JPS5784830A/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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/64—Screws with two or more threads
    • B29C48/65—Screws with two or more threads neighbouring threads or channels having different configurations, e.g. one thread being lower than its neighbouring thread
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
    • B29B7/428—Parts or accessories, e.g. casings, feeding or discharging means
    • B29B7/429—Screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/82—Heating or cooling
    • B29B7/826—Apparatus therefor
    • 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

Landscapes

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

Abstract

PURPOSE:To accomplish high speed extruding operation smoothly and efficiently by a method wherein molten material receiving grooves and solid grooves are composed of principal and subsidary flights and the solid head and the molten material are prevented from mixing. CONSTITUTION:In grooves provided by the principal flights 34, the subsidary flights 36a-36d are provided sequentially in the axial direction from the upper stream toward the lower one so that they can have the same diameter and the same revolving direction as the principal flight 34 and a length about 1-4 times as long as the diameter of the screw. The molten material 22 provided on the side of the lower streams of the subsidary flights 36 in the solid grooves 40 is recovered sequentially in a receiving grooves 38 of the molten material in the lower stream through lead-in holes 46 and finally joins the molten material 22 provided on the side of the lower stream of the subsidary flight 36d and is transferred to a measuring part 48 under such a state that a mixture with the unmolten material can not be found at all.
JP55161434A 1980-11-18 1980-11-18 Extruding screw of thermoplastic resin Pending JPS5784830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55161434A JPS5784830A (en) 1980-11-18 1980-11-18 Extruding screw of thermoplastic resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55161434A JPS5784830A (en) 1980-11-18 1980-11-18 Extruding screw of thermoplastic resin

Publications (1)

Publication Number Publication Date
JPS5784830A true JPS5784830A (en) 1982-05-27

Family

ID=15735032

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55161434A Pending JPS5784830A (en) 1980-11-18 1980-11-18 Extruding screw of thermoplastic resin

Country Status (1)

Country Link
JP (1) JPS5784830A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4770539A (en) * 1987-07-06 1988-09-13 Husky Injection Molding Systems Ltd. Barrier screw
US5035509A (en) * 1990-08-13 1991-07-30 Hpm Corporation Multi-channel extrusion screw with a zig-zag undercut barrier
US5219590A (en) * 1991-06-13 1993-06-15 Hpm Corporation Triple channel wave screw
EP1344627A1 (en) * 2002-03-14 2003-09-17 Ferioli Filippo S.p.A. Screw for plasticising thermoplastic resins with three flights and streams of different speed therein
EP1711322A4 (en) * 2003-12-24 2008-12-17 Xaloy Inc Apparatus for plasticating thermoplastics

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4770539A (en) * 1987-07-06 1988-09-13 Husky Injection Molding Systems Ltd. Barrier screw
US5035509A (en) * 1990-08-13 1991-07-30 Hpm Corporation Multi-channel extrusion screw with a zig-zag undercut barrier
US5219590A (en) * 1991-06-13 1993-06-15 Hpm Corporation Triple channel wave screw
US5375992A (en) * 1991-06-13 1994-12-27 Hpm Corporation Triple channel wave screw
EP1344627A1 (en) * 2002-03-14 2003-09-17 Ferioli Filippo S.p.A. Screw for plasticising thermoplastic resins with three flights and streams of different speed therein
EP1711322A4 (en) * 2003-12-24 2008-12-17 Xaloy Inc Apparatus for plasticating thermoplastics

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