DE2942320A1 - Rueckstroemsperre an schnecken-spritzgiessmaschinen - Google Patents

Rueckstroemsperre an schnecken-spritzgiessmaschinen

Info

Publication number
DE2942320A1
DE2942320A1 DE19792942320 DE2942320A DE2942320A1 DE 2942320 A1 DE2942320 A1 DE 2942320A1 DE 19792942320 DE19792942320 DE 19792942320 DE 2942320 A DE2942320 A DE 2942320A DE 2942320 A1 DE2942320 A1 DE 2942320A1
Authority
DE
Germany
Prior art keywords
pressure ring
passage
screw
screw head
head
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.)
Granted
Application number
DE19792942320
Other languages
German (de)
English (en)
Other versions
DE2942320C2 (enrdf_load_stackoverflow
Inventor
Jürgen Dr. 8560 Lauf Rothe
Karl 8500 Nürnberg Schirmer
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.)
Vodafone GmbH
Original Assignee
MANNESMANN DEMAG KUNSTOFFTECHNIK ZWEIGNIEDERLASSUNG DER MANNESMANN DEMAG AG
Mannesmann Demag Kunststofftechnik Wiehe GmbH
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 MANNESMANN DEMAG KUNSTOFFTECHNIK ZWEIGNIEDERLASSUNG DER MANNESMANN DEMAG AG, Mannesmann Demag Kunststofftechnik Wiehe GmbH filed Critical MANNESMANN DEMAG KUNSTOFFTECHNIK ZWEIGNIEDERLASSUNG DER MANNESMANN DEMAG AG
Priority to DE19792942320 priority Critical patent/DE2942320A1/de
Publication of DE2942320A1 publication Critical patent/DE2942320A1/de
Application granted granted Critical
Publication of DE2942320C2 publication Critical patent/DE2942320C2/de
Granted 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
    • B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • B29C45/50—Axially movable screw
    • B29C45/52—Non-return devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
DE19792942320 1979-10-19 1979-10-19 Rueckstroemsperre an schnecken-spritzgiessmaschinen Granted DE2942320A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792942320 DE2942320A1 (de) 1979-10-19 1979-10-19 Rueckstroemsperre an schnecken-spritzgiessmaschinen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792942320 DE2942320A1 (de) 1979-10-19 1979-10-19 Rueckstroemsperre an schnecken-spritzgiessmaschinen

Publications (2)

Publication Number Publication Date
DE2942320A1 true DE2942320A1 (de) 1981-05-07
DE2942320C2 DE2942320C2 (enrdf_load_stackoverflow) 1987-08-06

Family

ID=6083887

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792942320 Granted DE2942320A1 (de) 1979-10-19 1979-10-19 Rueckstroemsperre an schnecken-spritzgiessmaschinen

Country Status (1)

Country Link
DE (1) DE2942320A1 (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3240872A1 (de) * 1982-11-05 1984-05-10 Erich 7141 Steinheim Blattert Rueckstromsperre fuer eine schnecken-spritzgiessmaschine
EP0212224A3 (en) * 1985-07-19 1988-12-28 Engel Maschinenbau Gesellschaft M.B.H. Injection device for injection-moulding machines
EP1101591A1 (en) * 1999-11-12 2001-05-23 Sumitomo Heavy Industries, Ltd. Backflow barrier at the screw head of screw injection moulding machines

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2215585A1 (de) * 1972-03-30 1973-10-31 Rolf Deerberg Einrichtung zum spritzen von duroplastischen werkstoffen
DE2518219A1 (de) * 1975-04-24 1976-11-04 Demag Kunststofftech Rueckstroemsperre an schneckenspritzgiessmaschinen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2215585A1 (de) * 1972-03-30 1973-10-31 Rolf Deerberg Einrichtung zum spritzen von duroplastischen werkstoffen
DE2518219A1 (de) * 1975-04-24 1976-11-04 Demag Kunststofftech Rueckstroemsperre an schneckenspritzgiessmaschinen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3240872A1 (de) * 1982-11-05 1984-05-10 Erich 7141 Steinheim Blattert Rueckstromsperre fuer eine schnecken-spritzgiessmaschine
EP0212224A3 (en) * 1985-07-19 1988-12-28 Engel Maschinenbau Gesellschaft M.B.H. Injection device for injection-moulding machines
EP1101591A1 (en) * 1999-11-12 2001-05-23 Sumitomo Heavy Industries, Ltd. Backflow barrier at the screw head of screw injection moulding machines
US6613265B1 (en) 1999-11-12 2003-09-02 Sumitomo Heavy Industries, Ltd. Method of operating a back-flow prevention apparatus

Also Published As

Publication number Publication date
DE2942320C2 (enrdf_load_stackoverflow) 1987-08-06

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8127 New person/name/address of the applicant

Owner name: MANNESMANN AG, 4000 DUESSELDORF, DE

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee