ES343223A1 - Method of Producing Castings of Plasticisable Material. - Google Patents

Method of Producing Castings of Plasticisable Material.

Info

Publication number
ES343223A1
ES343223A1 ES343223A ES343223A ES343223A1 ES 343223 A1 ES343223 A1 ES 343223A1 ES 343223 A ES343223 A ES 343223A ES 343223 A ES343223 A ES 343223A ES 343223 A1 ES343223 A1 ES 343223A1
Authority
ES
Spain
Prior art keywords
pressure
mould
filling
injection
stage
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
ES343223A
Other languages
Spanish (es)
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.)
Netstal Maschinen AG
Original Assignee
Maschinenfabrik und Giesserei Netstal AG
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 Maschinenfabrik und Giesserei Netstal AG filed Critical Maschinenfabrik und Giesserei Netstal AG
Publication of ES343223A1 publication Critical patent/ES343223A1/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
    • B29C45/20—Injection nozzles
    • B29C45/23—Feed stopping equipment
    • B29C45/231—Needle valve systems 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
    • 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
    • B29C45/5092—Intrusion moulding, i.e. the screw rotates during injection

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

Articles of large volume of a thermoplastics material are made by filling a mould in two consecutive stages, the first stage being without any substantial pressure rise and the second by injection at high pressure. In the example shown the material is plasticized in a cylinder 2 by heating elements la and introduced into the mould by a rotating screw 3. Axial advance of the screw effects full pressure injection. A valve pin 8 operated through a pivoted crank 9 maintains the nozzle 6 closed during the plasticizing stage. In an alternative embodiment (not shown) both low and high-pressure filling are effected by means of a piston.
ES343223A 1966-08-26 1967-07-20 Method of Producing Castings of Plasticisable Material. Expired ES343223A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1250766A CH437764A (en) 1966-08-26 1966-08-26 Method and device for the production of molded parts from thermoplastic material

Publications (1)

Publication Number Publication Date
ES343223A1 true ES343223A1 (en) 1968-09-01

Family

ID=4383648

Family Applications (1)

Application Number Title Priority Date Filing Date
ES343223A Expired ES343223A1 (en) 1966-08-26 1967-07-20 Method of Producing Castings of Plasticisable Material.

Country Status (5)

Country Link
AT (1) AT326900B (en)
CH (1) CH437764A (en)
ES (1) ES343223A1 (en)
GB (1) GB1199445A (en)
SE (1) SE344432B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7476094B2 (en) 2004-01-29 2009-01-13 Aisapack Holding S.A. Plastic material metering system for plastic articles manufacturing device
WO2016090274A1 (en) 2014-12-04 2016-06-09 Extrude To Fill, LLC Injection molding system and method of fabricating a component
MX2017007307A (en) 2014-12-04 2018-06-06 Extrude To Fill Llc Nozzle shut off for injection molding system.
ES2782184T3 (en) * 2015-12-04 2020-09-11 Extrude To Fill Inc Method of molding a part

Also Published As

Publication number Publication date
DE1729191B2 (en) 1976-03-11
AT326900B (en) 1976-01-12
GB1199445A (en) 1970-07-22
SE344432B (en) 1972-04-17
DE1729191A1 (en) 1972-03-02
CH437764A (en) 1967-06-15

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