JPS5695662A - Construction of screw for extrusion molding machine - Google Patents

Construction of screw for extrusion molding machine

Info

Publication number
JPS5695662A
JPS5695662A JP17131379A JP17131379A JPS5695662A JP S5695662 A JPS5695662 A JP S5695662A JP 17131379 A JP17131379 A JP 17131379A JP 17131379 A JP17131379 A JP 17131379A JP S5695662 A JPS5695662 A JP S5695662A
Authority
JP
Japan
Prior art keywords
flight
molding material
pressure load
element pieces
pieces
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
JP17131379A
Other languages
Japanese (ja)
Inventor
Tadashi Sato
Masaru Yokoyama
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 JP17131379A priority Critical patent/JPS5695662A/en
Publication of JPS5695662A publication Critical patent/JPS5695662A/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
    • B29C48/56—Screws having grooves or cavities other than the thread or the channel
    • 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
    • B29C48/565—Screws having projections other than the thread, e.g. pins
    • 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
    • B29C48/59—Screws characterised by details of the thread, i.e. the shape of a single thread of the material-feeding screw
    • B29C48/60—Thread tops
    • 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 improve the mixing and kneading efficiency of a molding material preventing overheating with increased propelling flow of a melted molding material by arranging a plurality of flight element pieces so alternately as to make the ends of the pieces a pressure load surface. CONSTITUTION:A plurality of flight element pieces 8 are alternately arranged on the circumference of a screw shaft 1 to form a flight and a pressure load surface 7 is formed on the ends of flight element pieces 8 serving as steps. The pressure load surfaces 7 increase the pressure loaded on a molding material thereby enhancing the propelling flow thereof. Otherwise, a flight 11 with a helix angle alpha2 smaller than that alpha1 of a flight 2 is projected spirally on the circumference of the screw shaft 1 and additionally a plurality of communicating passages are drilled for the flight 11. The same effect can be obtained.
JP17131379A 1979-12-29 1979-12-29 Construction of screw for extrusion molding machine Pending JPS5695662A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17131379A JPS5695662A (en) 1979-12-29 1979-12-29 Construction of screw for extrusion molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17131379A JPS5695662A (en) 1979-12-29 1979-12-29 Construction of screw for extrusion molding machine

Publications (1)

Publication Number Publication Date
JPS5695662A true JPS5695662A (en) 1981-08-03

Family

ID=15920938

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17131379A Pending JPS5695662A (en) 1979-12-29 1979-12-29 Construction of screw for extrusion molding machine

Country Status (1)

Country Link
JP (1) JPS5695662A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1033085C2 (en) * 2006-12-19 2008-06-20 Rollepaal B V Extruder, assembly of interlocking screws screwing against each other, a screw therefor, and a method for manufacturing such a screw.
EP2535165A1 (en) * 2011-06-16 2012-12-19 Hans Weber Maschinenfabrik GmbH Twin screw extruder with wavy screw thread
CN103921426A (en) * 2014-05-05 2014-07-16 北京化工大学 Calculus-reinforced heat transfer and plasticizing mixer-extruder for polymer melt
US8998481B2 (en) 2012-08-16 2015-04-07 Hans Weber Maschinenfabrik Gmbh Double screw extruder
CN106863744A (en) * 2017-03-13 2017-06-20 北京化工大学 A kind of single screw rod plasticizing extruder
CN107263844A (en) * 2016-04-06 2017-10-20 戴维斯-标准有限责任公司 The plasticizing apparatus screw rod of groove with angle and change in depth

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1033085C2 (en) * 2006-12-19 2008-06-20 Rollepaal B V Extruder, assembly of interlocking screws screwing against each other, a screw therefor, and a method for manufacturing such a screw.
WO2008075941A1 (en) * 2006-12-19 2008-06-26 Rollepaal B.V. Extruder, set comprising mutually cooperating, counter rotating screws, a screw therefor and a method for producing such a screw
EP2535165A1 (en) * 2011-06-16 2012-12-19 Hans Weber Maschinenfabrik GmbH Twin screw extruder with wavy screw thread
US8998481B2 (en) 2012-08-16 2015-04-07 Hans Weber Maschinenfabrik Gmbh Double screw extruder
CN103921426A (en) * 2014-05-05 2014-07-16 北京化工大学 Calculus-reinforced heat transfer and plasticizing mixer-extruder for polymer melt
CN107263844A (en) * 2016-04-06 2017-10-20 戴维斯-标准有限责任公司 The plasticizing apparatus screw rod of groove with angle and change in depth
CN107263844B (en) * 2016-04-06 2021-02-02 戴维斯-标准有限责任公司 Plasticizer screw with grooves varying in angle and depth
CN106863744A (en) * 2017-03-13 2017-06-20 北京化工大学 A kind of single screw rod plasticizing extruder

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