JPS5715943A - Vacuum extruder - Google Patents

Vacuum extruder

Info

Publication number
JPS5715943A
JPS5715943A JP9087880A JP9087880A JPS5715943A JP S5715943 A JPS5715943 A JP S5715943A JP 9087880 A JP9087880 A JP 9087880A JP 9087880 A JP9087880 A JP 9087880A JP S5715943 A JPS5715943 A JP S5715943A
Authority
JP
Japan
Prior art keywords
cylinder
piston
kneaded body
mouth piece
vacuum
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
JP9087880A
Other languages
Japanese (ja)
Inventor
Takeshi Hirota
Tetsuji Tsuji
Mitsuo Satomi
Eiichi Hirota
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 Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP9087880A priority Critical patent/JPS5715943A/en
Publication of JPS5715943A publication Critical patent/JPS5715943A/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
    • B29C48/76—Venting, drying means; Degassing means
    • B29C48/763—Vent constructions, e.g. venting means avoiding melt escape
    • 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
    • B29C48/285—Feeding the extrusion material to the extruder
    • 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
    • B29C48/76—Venting, drying means; Degassing means
    • 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 obtain an extrudate with no bubbles contained therein or on the surface, by continuously introducing a kneaded body including a starting material into a vacuum cylinder for deaeration under vacuum. CONSTITUTION:The kneaded body including a prescribed starting material charged in a cylinder 8 is pressed by a piston 7 to be filled into a space 10 through slits 11. Then to a mouth piece 3 of the cylinder 2 is attached with a lid 13, the cylinder 2 is evacuated through an evacuation port 4 so that the inside of the cylinder 2 is made a vacuum state, and the piston 7 is gradually advanced, so that while air or other gaseous bubbles in th mixed body are removed through slits 12 having a diameter at least less than the thickness of the most thin section of the desired extrudate, the kneaded body is charged into the cylinder via an opening 5. Then the kneaded body is pressed toward the mouth piece 3 by advancing the piston 1, thereafter the lid 13 is removed, and the piston 1 is further advancted so that the kneaded body is extruded from the mouth piece 3 to be molded.
JP9087880A 1980-07-02 1980-07-02 Vacuum extruder Pending JPS5715943A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9087880A JPS5715943A (en) 1980-07-02 1980-07-02 Vacuum extruder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9087880A JPS5715943A (en) 1980-07-02 1980-07-02 Vacuum extruder

Publications (1)

Publication Number Publication Date
JPS5715943A true JPS5715943A (en) 1982-01-27

Family

ID=14010721

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9087880A Pending JPS5715943A (en) 1980-07-02 1980-07-02 Vacuum extruder

Country Status (1)

Country Link
JP (1) JPS5715943A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6046226A (en) * 1983-05-23 1985-03-13 バ−ウエル　マシ−ン　アンド　ラバ−　グル−プ　リミテツド Ram extruder
JPH01136246U (en) * 1988-03-10 1989-09-19
KR20000065636A (en) * 1999-04-07 2000-11-15 장용균 the Orifice in the Extruder in order to Destroying Air-bubble
KR20010005244A (en) * 1999-06-30 2001-01-15 장용균 the Orifice in the Extruder in order to Destroying Air-bubble
US6659754B1 (en) 2002-04-08 2003-12-09 Cold Injection Molding, L.T.D. Injection molding device
EP1884341A3 (en) * 2006-08-02 2011-11-16 Biotronik VI Patent AG Method for manufacturing strand shaped articles
CN110901011A (en) * 2019-12-10 2020-03-24 湖南工业大学 Mixing extrusion natural exhaust flash compression device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4925994A (en) * 1972-06-23 1974-03-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4925994A (en) * 1972-06-23 1974-03-07

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6046226A (en) * 1983-05-23 1985-03-13 バ−ウエル　マシ−ン　アンド　ラバ−　グル−プ　リミテツド Ram extruder
JPH0542331B2 (en) * 1983-05-23 1993-06-28 Baaueru Mashiin Ando Rabaa Gur
JPH01136246U (en) * 1988-03-10 1989-09-19
KR20000065636A (en) * 1999-04-07 2000-11-15 장용균 the Orifice in the Extruder in order to Destroying Air-bubble
KR20010005244A (en) * 1999-06-30 2001-01-15 장용균 the Orifice in the Extruder in order to Destroying Air-bubble
US6659754B1 (en) 2002-04-08 2003-12-09 Cold Injection Molding, L.T.D. Injection molding device
EP1884341A3 (en) * 2006-08-02 2011-11-16 Biotronik VI Patent AG Method for manufacturing strand shaped articles
CN110901011A (en) * 2019-12-10 2020-03-24 湖南工业大学 Mixing extrusion natural exhaust flash compression device
CN110901011B (en) * 2019-12-10 2021-09-10 湖南工业大学 Mixing extrusion natural exhaust flash compression device

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