GB2175244B - Screw adapted for plastic formation - Google Patents

Screw adapted for plastic formation

Info

Publication number
GB2175244B
GB2175244B GB8607731A GB8607731A GB2175244B GB 2175244 B GB2175244 B GB 2175244B GB 8607731 A GB8607731 A GB 8607731A GB 8607731 A GB8607731 A GB 8607731A GB 2175244 B GB2175244 B GB 2175244B
Authority
GB
United Kingdom
Prior art keywords
screw adapted
plastic formation
plastic
formation
screw
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.)
Expired
Application number
GB8607731A
Other versions
GB8607731D0 (en
GB2175244A (en
Inventor
Shigeru Fujita
Mitsuaki Eshima
Osamu Segawa
Takashi Kamiyama
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
Publication of GB8607731D0 publication Critical patent/GB8607731D0/en
Publication of GB2175244A publication Critical patent/GB2175244A/en
Application granted granted Critical
Publication of GB2175244B publication Critical patent/GB2175244B/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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/58—Details
    • B29C45/60—Screws
    • 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
    • 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)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
GB8607731A 1985-04-01 1986-03-27 Screw adapted for plastic formation Expired GB2175244B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60068767A JPS61227003A (en) 1985-04-01 1985-04-01 Screw for plastic molding equipped with subflight

Publications (3)

Publication Number Publication Date
GB8607731D0 GB8607731D0 (en) 1986-04-30
GB2175244A GB2175244A (en) 1986-11-26
GB2175244B true GB2175244B (en) 1989-08-23

Family

ID=13383210

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8607731A Expired GB2175244B (en) 1985-04-01 1986-03-27 Screw adapted for plastic formation

Country Status (3)

Country Link
JP (1) JPS61227003A (en)
DE (1) DE3610699A1 (en)
GB (1) GB2175244B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4733970A (en) * 1985-09-09 1988-03-29 Sterling Extruder Corporation Extruder screw
DE3744553A1 (en) * 1987-12-30 1989-07-13 Toshiba Machine Co Ltd SNAIL FOR USE IN AN INJECTION MOLDING MACHINE OF THE VENTILATION TYPE
JP2781932B2 (en) * 1991-01-08 1998-07-30 株式会社名機製作所 Injection molding machine
DE4228254A1 (en) * 1992-08-25 1994-03-03 Edda Hummer Recyclable synthetic rattan furniture - formed from polyolefin fibres by process extrusion
US10532490B2 (en) * 2016-04-06 2020-01-14 Davis-Standard, Llc Plasticating apparatus screw having grooves of varying angles and depths
CN108381892B (en) * 2018-05-18 2023-09-26 山东农业大学 Degradable film blowing machine set

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1279663A (en) * 1969-02-14 1972-06-28 Midland Ross Corp Improved extruder screw
GB1299955A (en) * 1969-02-22 1972-12-13 Krupp Gmbh Extruder screw
GB1352934A (en) * 1970-04-13 1974-05-15 Barmag Barmer Maschf Screw extruder
GB1428058A (en) * 1973-06-22 1976-03-17 Sofisa Worm presses
GB1596009A (en) * 1977-04-29 1981-08-19 Ingersoll Rand Co Plasticising screw
EP0034505A2 (en) * 1980-02-19 1981-08-26 W.H. Willert, Inc. Plasticizing screw

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3504400A (en) * 1967-08-04 1970-04-07 Vish Khim T I Sesquithread feed worm for an extruder
US3858856A (en) * 1973-01-26 1975-01-07 John S Hsu Extruder screw
JPS50136352A (en) * 1974-04-17 1975-10-29
JPS53145874A (en) * 1977-05-24 1978-12-19 Ai Chiyun Chiyan Extruder screw
JPS59188418A (en) * 1983-04-12 1984-10-25 Ube Ind Ltd Screw for resin molding

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1279663A (en) * 1969-02-14 1972-06-28 Midland Ross Corp Improved extruder screw
GB1299955A (en) * 1969-02-22 1972-12-13 Krupp Gmbh Extruder screw
GB1352934A (en) * 1970-04-13 1974-05-15 Barmag Barmer Maschf Screw extruder
GB1428058A (en) * 1973-06-22 1976-03-17 Sofisa Worm presses
GB1596009A (en) * 1977-04-29 1981-08-19 Ingersoll Rand Co Plasticising screw
EP0034505A2 (en) * 1980-02-19 1981-08-26 W.H. Willert, Inc. Plasticizing screw

Also Published As

Publication number Publication date
JPH0257494B2 (en) 1990-12-05
JPS61227003A (en) 1986-10-09
GB8607731D0 (en) 1986-04-30
GB2175244A (en) 1986-11-26
DE3610699A1 (en) 1986-10-09

Similar Documents

Publication Publication Date Title
GB2208694B (en) Screw blanks
GB2180496B (en) Extruder screw
GB2210345B (en) Screw seal
GB8612138D0 (en) Mould
GB8528645D0 (en) Mould
GB8619820D0 (en) Resin
DE3573999D1 (en) Screw extruder
EP0221279A3 (en) Screw driver insert
GB2177331B (en) Mould
GB2178691B (en) Screw extruders
GB8616826D0 (en) Screw
DE3661568D1 (en) Screw grommet
GB2175244B (en) Screw adapted for plastic formation
GB8530699D0 (en) Pin-barrel extruder
GB8508396D0 (en) Moulding
BG41536A1 (en) Worm for mono- worm extruder
GB8530254D0 (en) Mould
GB8522798D0 (en) Mould
AU99965S (en) Screw
GB2178986B (en) Drill screw
GB8618192D0 (en) Mould
GB8620663D0 (en) Screw retention means
GB8611417D0 (en) Thread-cutting
GB8522515D0 (en) Screw retention means
PL251535A2 (en) Hand screw

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19980327