ES319922A1 - Improvements in the molding by transfer and injection through a press supplied with a tornillon sinfin. (Machine-translation by Google Translate, not legally binding) - Google Patents

Improvements in the molding by transfer and injection through a press supplied with a tornillon sinfin. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES319922A1
ES319922A1 ES0319922A ES319922A ES319922A1 ES 319922 A1 ES319922 A1 ES 319922A1 ES 0319922 A ES0319922 A ES 0319922A ES 319922 A ES319922 A ES 319922A ES 319922 A1 ES319922 A1 ES 319922A1
Authority
ES
Spain
Prior art keywords
transfer
injection
piston
chamber
check valve
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
ES0319922A
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.)
HYDROPLAST
Original Assignee
HYDROPLAST
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 HYDROPLAST filed Critical HYDROPLAST
Publication of ES319922A1 publication Critical patent/ES319922A1/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
    • B29C45/53—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston
    • B29C45/54—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston and plasticising screw
    • B29C45/544—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston and plasticising screw the plasticising unit being connected to a transfer chamber in the injection unit at the upstream side of the injection piston
    • 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
    • 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

Landscapes

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

Abstract

Improvements in transfer molding and inspection by means of a press equipped with a preliminary plasticizing screw that feeds into a cylindrical cavity with an injection chamber and a transfer chamber, a scanning piston and a concentric injection piston hydraulically operated and a check valve, said refinements being characterized by the fact that the injection piston is of constant diameter, coaxial and internal to the transfer piston, because the check valve is disposed with a fixed seat in one, communication provided between the chamber of transfer and the injection chamber, the controls of the worm and the pistons being associated in such a way that the feed of the transfer chamber is continued from the worm during the injection, the injection piston being maintained at pressure during the same time as, during the refrigeration period In this case, the rotating auger continues to rotate to feed the transfer chamber and the injection piston is no longer subjected to the hydraulic pressure to the step that the transfer piston is subjected to such pressure, the check valve being , regulated and the transfer piston can be, at the same time, such, so that at the end of the maneuver there can be a certain passage of material towards the injection chamber, thus cleaning the bottom set in the transfer chamber. (Machine-translation by Google Translate, not legally binding)
ES0319922A 1964-11-27 1965-11-23 Improvements in the molding by transfer and injection through a press supplied with a tornillon sinfin. (Machine-translation by Google Translate, not legally binding) Expired ES319922A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR996627A FR1428521A (en) 1964-11-27 1964-11-27 Improvements in injection-transfer molding

Publications (1)

Publication Number Publication Date
ES319922A1 true ES319922A1 (en) 1966-05-01

Family

ID=8843562

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0319922A Expired ES319922A1 (en) 1964-11-27 1965-11-23 Improvements in the molding by transfer and injection through a press supplied with a tornillon sinfin. (Machine-translation by Google Translate, not legally binding)

Country Status (9)

Country Link
BE (1) BE672360A (en)
CH (1) CH449245A (en)
DE (1) DE1529962B1 (en)
DK (1) DK119532B (en)
ES (1) ES319922A1 (en)
FR (1) FR1428521A (en)
LU (1) LU49935A1 (en)
NL (1) NL6515259A (en)
SE (1) SE320492B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE415464B (en) * 1978-09-29 1980-10-06 Josef Kubat PRESSURE GENERATING DEVICE FOR INJECTION SPRAYING AND USING THEREOF
FR2549770A1 (en) * 1983-07-28 1985-02-01 Manceau Marcel Unit for injecting plastic into a mould.
DE3336080A1 (en) * 1983-10-04 1985-04-18 Maschinenfabrik J. Dieffenbacher Gmbh & Co, 7519 Eppingen INJECTION PRESS
DE19833504C2 (en) * 1998-07-24 2000-05-04 Gneuss Kunststofftechnik Gmbh Plastic melt gun
DE19950183C1 (en) * 1999-10-19 2001-04-05 Krauss Maffei Kunststofftech Piston assembly for injection molding machine, has independent pressure piston to act as backflow barrier and prevent the formation of gas bubbles in mass flow path
DE10221535C1 (en) 2002-05-15 2003-08-07 Krauss Maffei Kunststofftech Dosing unit for injection molding machine comprises pre-dosing chamber connected to feed channel and separated from dosing chamber by piston, with chambers connected by a sealable channel
JP6622675B2 (en) * 2016-09-27 2019-12-18 ファナック株式会社 Injection molding machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE841057C (en) * 1949-06-16 1952-06-13 Friedrich Banz Extrusion press
FR1193335A (en) * 1958-03-17 1959-11-02 Low pressure continuous feed transfer pot
FR1365292A (en) * 1962-12-22 1964-07-03 Further training in injection-transfer molding

Also Published As

Publication number Publication date
LU49935A1 (en) 1966-01-26
BE672360A (en) 1966-05-16
CH449245A (en) 1967-12-31
FR1428521A (en) 1966-02-18
SE320492B (en) 1970-02-09
NL6515259A (en) 1966-05-31
DK119532B (en) 1971-01-18
DE1529962B1 (en) 1972-02-03

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