IT210338Z2 - Struttura di valvola di non ritorno per l'alimentazione di ugelli in gruppi di iniezione per materiale termoplastico. - Google Patents

Struttura di valvola di non ritorno per l'alimentazione di ugelli in gruppi di iniezione per materiale termoplastico.

Info

Publication number
IT210338Z2
IT210338Z2 IT8622810U IT2281086U IT210338Z2 IT 210338 Z2 IT210338 Z2 IT 210338Z2 IT 8622810 U IT8622810 U IT 8622810U IT 2281086 U IT2281086 U IT 2281086U IT 210338 Z2 IT210338 Z2 IT 210338Z2
Authority
IT
Italy
Prior art keywords
abutment
screw
stem
thermoplastics
feeding nozzles
Prior art date
Application number
IT8622810U
Other languages
English (en)
Other versions
IT8622810V0 (it
Original Assignee
Cappelletti Marzio
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 Cappelletti Marzio filed Critical Cappelletti Marzio
Priority to IT8622810U priority Critical patent/IT210338Z2/it
Publication of IT8622810V0 publication Critical patent/IT8622810V0/it
Priority to ES198787111479T priority patent/ES2028832T3/es
Priority to DE8787111479T priority patent/DE3775695D1/de
Priority to AT87111479T priority patent/ATE71015T1/de
Priority to EP87111479A priority patent/EP0264558B1/en
Application granted granted Critical
Publication of IT210338Z2 publication Critical patent/IT210338Z2/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
    • B29C45/52—Non-return devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
IT8622810U 1986-08-20 1986-08-20 Struttura di valvola di non ritorno per l'alimentazione di ugelli in gruppi di iniezione per materiale termoplastico. IT210338Z2 (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
IT8622810U IT210338Z2 (it) 1986-08-20 1986-08-20 Struttura di valvola di non ritorno per l'alimentazione di ugelli in gruppi di iniezione per materiale termoplastico.
ES198787111479T ES2028832T3 (es) 1986-08-20 1987-08-07 Valvula antirretorno para unidades de inyeccion de tornillo para materiales termoplasticos.
DE8787111479T DE3775695D1 (de) 1986-08-20 1987-08-07 Rueckstromsperrventil fuer schneckenspritzgiesseinheiten fuer thermoplastische kunststoffe.
AT87111479T ATE71015T1 (de) 1986-08-20 1987-08-07 Rueckstromsperrventil fuer schneckenspritzgiesseinheiten fuer thermoplastische kunststoffe.
EP87111479A EP0264558B1 (en) 1986-08-20 1987-08-07 Non-return valve for screw injection units for thermoplastics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8622810U IT210338Z2 (it) 1986-08-20 1986-08-20 Struttura di valvola di non ritorno per l'alimentazione di ugelli in gruppi di iniezione per materiale termoplastico.

Publications (2)

Publication Number Publication Date
IT8622810V0 IT8622810V0 (it) 1986-08-20
IT210338Z2 true IT210338Z2 (it) 1988-12-06

Family

ID=11200697

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8622810U IT210338Z2 (it) 1986-08-20 1986-08-20 Struttura di valvola di non ritorno per l'alimentazione di ugelli in gruppi di iniezione per materiale termoplastico.

Country Status (5)

Country Link
EP (1) EP0264558B1 (it)
AT (1) ATE71015T1 (it)
DE (1) DE3775695D1 (it)
ES (1) ES2028832T3 (it)
IT (1) IT210338Z2 (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT397229B (de) * 1992-03-12 1994-02-25 Engel Gmbh Maschbau Rückstromsperre für eine einspritzeinheit einer spritzgiessmaschine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2885734A (en) * 1955-06-24 1959-05-12 Wucher Roland Apparatus for moulding plastic materials
GB866929A (en) * 1956-11-21 1961-05-03 Walther Nothelfer Improvements in or relating to injection moulding machines
US3007202A (en) * 1958-12-22 1961-11-07 Wucher Roland Apparatus for injection moulding of plastic materials
US4065108A (en) * 1976-11-11 1977-12-27 Package Machinery Company Non-return valve for mottle charge in plastic injection molding machine

Also Published As

Publication number Publication date
ES2028832T3 (es) 1992-07-16
ATE71015T1 (de) 1992-01-15
EP0264558B1 (en) 1992-01-02
IT8622810V0 (it) 1986-08-20
EP0264558A3 (en) 1989-05-24
EP0264558A2 (en) 1988-04-27
DE3775695D1 (de) 1992-02-13

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