IT1028170B - Dispositivo per la fluidificazione e l iniezione di una materia plastica di stampaggio - Google Patents

Dispositivo per la fluidificazione e l iniezione di una materia plastica di stampaggio

Info

Publication number
IT1028170B
IT1028170B IT19006/75A IT1900675A IT1028170B IT 1028170 B IT1028170 B IT 1028170B IT 19006/75 A IT19006/75 A IT 19006/75A IT 1900675 A IT1900675 A IT 1900675A IT 1028170 B IT1028170 B IT 1028170B
Authority
IT
Italy
Prior art keywords
fluidification
injection
plastic material
molding plastic
molding
Prior art date
Application number
IT19006/75A
Other languages
English (en)
Original Assignee
Patent & Inventions 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 Patent & Inventions Ltd filed Critical Patent & Inventions Ltd
Application granted granted Critical
Publication of IT1028170B publication Critical patent/IT1028170B/it

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
    • B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • B29C45/50—Axially movable screw
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/445—Coaxially arranged screws, i.e. one within the other
    • 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
    • B29C48/51—Screws with internal flow passages, e.g. for molten material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
IT19006/75A 1974-01-04 1975-01-02 Dispositivo per la fluidificazione e l iniezione di una materia plastica di stampaggio IT1028170B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7400224A FR2256823B1 (it) 1974-01-04 1974-01-04

Publications (1)

Publication Number Publication Date
IT1028170B true IT1028170B (it) 1979-01-30

Family

ID=9133090

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19006/75A IT1028170B (it) 1974-01-04 1975-01-02 Dispositivo per la fluidificazione e l iniezione di una materia plastica di stampaggio

Country Status (15)

Country Link
US (1) US3946999A (it)
JP (1) JPS5640014B2 (it)
AT (1) AT341198B (it)
AU (1) AU7694774A (it)
BR (1) BR7500047A (it)
CH (1) CH586106A5 (it)
DD (1) DD118024A5 (it)
DE (1) DE2461065A1 (it)
ES (1) ES433433A1 (it)
FR (1) FR2256823B1 (it)
GB (1) GB1442880A (it)
IT (1) IT1028170B (it)
SE (1) SE406293B (it)
SU (1) SU582749A3 (it)
ZA (1) ZA748220B (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4065108A (en) * 1976-11-11 1977-12-27 Package Machinery Company Non-return valve for mottle charge in plastic injection molding machine
CN104162991B (zh) * 2014-08-25 2017-02-01 厦门达天电子科技有限公司 一种带单向阀门的热熔挤出装置
CN105965895B (zh) * 2016-06-01 2018-10-09 深圳万为智能制造科技有限公司 3d打印用多重回旋挤出机及控制系统
DE102019213381A1 (de) * 2019-09-04 2021-03-04 Guangdong Yizumi Precision Machinery Co., Ltd. Extruder einer Werkzeugmaschine zur additiven Fertigung
DE102019213384A1 (de) * 2019-09-04 2021-03-04 Guangdong Yizumi Precision Machinery Co., Ltd. Werkzeugmaschine zur additiven Fertigung mit einem Extruder

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3131433A (en) * 1959-03-03 1964-05-05 Grundig Max Injection molding machine
US3156013A (en) * 1961-06-26 1964-11-10 Portage Machine Company Separator unit for injection cylinder
US3822057A (en) * 1971-11-01 1974-07-02 Gen Electric Shot volume control for injection molding machine
US3865354A (en) * 1972-03-17 1975-02-11 Du Pont Apparatus

Also Published As

Publication number Publication date
AT341198B (de) 1978-01-25
US3946999A (en) 1976-03-30
AU7694774A (en) 1976-07-01
JPS5640014B2 (it) 1981-09-17
JPS50105764A (it) 1975-08-20
SE7415515L (it) 1975-07-07
SU582749A3 (ru) 1977-11-30
BR7500047A (pt) 1975-11-04
DE2461065A1 (de) 1975-07-10
ZA748220B (en) 1976-01-28
ES433433A1 (es) 1976-11-01
SE406293B (sv) 1979-02-05
GB1442880A (en) 1976-07-14
DD118024A5 (it) 1976-02-12
FR2256823A1 (it) 1975-08-01
ATA1018974A (de) 1977-05-15
CH586106A5 (it) 1977-03-31
FR2256823B1 (it) 1977-06-10

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