ITPD20030302A1 - Valvola di non ritorno, particolarmente per stampi di macchine per lo stampaggio di materia plastica - Google Patents

Valvola di non ritorno, particolarmente per stampi di macchine per lo stampaggio di materia plastica

Info

Publication number
ITPD20030302A1
ITPD20030302A1 IT000302A ITPD20030302A ITPD20030302A1 IT PD20030302 A1 ITPD20030302 A1 IT PD20030302A1 IT 000302 A IT000302 A IT 000302A IT PD20030302 A ITPD20030302 A IT PD20030302A IT PD20030302 A1 ITPD20030302 A1 IT PD20030302A1
Authority
IT
Italy
Prior art keywords
valve body
plastic material
stroke
molds
mold
Prior art date
Application number
IT000302A
Other languages
English (en)
Inventor
Lorenzo Lorenzin
Original Assignee
Main Group Spa
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 Main Group Spa filed Critical Main Group Spa
Priority to IT000302A priority Critical patent/ITPD20030302A1/it
Priority to TW093101734A priority patent/TW200521362A/zh
Priority to EP04023034A priority patent/EP1543936B1/en
Priority to DE602004007227T priority patent/DE602004007227D1/de
Priority to AT04023034T priority patent/ATE365621T1/de
Priority to BR0404120-8A priority patent/BRPI0404120A/pt
Priority to KR1020040084430A priority patent/KR20050061282A/ko
Priority to CNA2004101019567A priority patent/CN1629526A/zh
Priority to CNU2004201166472U priority patent/CN2767114Y/zh
Publication of ITPD20030302A1 publication Critical patent/ITPD20030302A1/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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/58—Moulds
    • B29C44/581—Closure devices for pour holes
    • 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
    • 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
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C45/28—Closure devices 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
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C45/30—Flow control means disposed within the sprue channel, e.g. "torpedo" construction
    • 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
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76494—Controlled parameter
    • B29C2945/76545—Flow rate

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Check Valves (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Forging (AREA)
IT000302A 2003-12-17 2003-12-17 Valvola di non ritorno, particolarmente per stampi di macchine per lo stampaggio di materia plastica ITPD20030302A1 (it)

Priority Applications (9)

Application Number Priority Date Filing Date Title
IT000302A ITPD20030302A1 (it) 2003-12-17 2003-12-17 Valvola di non ritorno, particolarmente per stampi di macchine per lo stampaggio di materia plastica
TW093101734A TW200521362A (en) 2003-12-17 2004-01-27 Check valve particularly for molds of plastic molding machines
EP04023034A EP1543936B1 (en) 2003-12-17 2004-09-28 Check valve particularly for molds of plastic molding machines
DE602004007227T DE602004007227D1 (de) 2003-12-17 2004-09-28 Rückschlagventil insbesondere für Werkzeuge von Kunststoffverarbeitungsmaschinen
AT04023034T ATE365621T1 (de) 2003-12-17 2004-09-28 Rückschlagventil insbesondere für werkzeuge von kunststoffverarbeitungsmaschinen
BR0404120-8A BRPI0404120A (pt) 2003-12-17 2004-09-30 Válvula de retenção
KR1020040084430A KR20050061282A (ko) 2003-12-17 2004-10-21 플라스틱 몰딩머신의 몰드용 체크 밸브
CNA2004101019567A CN1629526A (zh) 2003-12-17 2004-12-17 特别是用于塑料成型机之模具的止回阀
CNU2004201166472U CN2767114Y (zh) 2003-12-17 2004-12-17 特别是用于塑料成型机之模具的止回阀

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000302A ITPD20030302A1 (it) 2003-12-17 2003-12-17 Valvola di non ritorno, particolarmente per stampi di macchine per lo stampaggio di materia plastica

Publications (1)

Publication Number Publication Date
ITPD20030302A1 true ITPD20030302A1 (it) 2005-06-18

Family

ID=34509491

Family Applications (1)

Application Number Title Priority Date Filing Date
IT000302A ITPD20030302A1 (it) 2003-12-17 2003-12-17 Valvola di non ritorno, particolarmente per stampi di macchine per lo stampaggio di materia plastica

Country Status (8)

Country Link
EP (1) EP1543936B1 (it)
KR (1) KR20050061282A (it)
CN (2) CN1629526A (it)
AT (1) ATE365621T1 (it)
BR (1) BRPI0404120A (it)
DE (1) DE602004007227D1 (it)
IT (1) ITPD20030302A1 (it)
TW (1) TW200521362A (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2928578B1 (fr) * 2008-03-11 2012-03-09 Faurecia Interieur Ind Piece d'equipement de vehicule automobile, et procede de fabrication associe
EP2360002A1 (en) * 2010-02-11 2011-08-24 Sika Technology AG Baffle or reinforcer with fixation mechanism
KR101721421B1 (ko) 2015-05-19 2017-03-31 (주)삼성유압기계 2축 연신 블로우 성형장치 및 방법
US20190083211A1 (en) * 2016-02-19 2019-03-21 Dk Mungyo Corporation Denture molding flask having check valve installed therein and method for manufacturing denture prosthesis using denture molding flask made of heterogeneous materials
JP2024030626A (ja) * 2022-08-24 2024-03-07 株式会社東芝 射出成形機、射出成形方法および射出成形金型

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3374502A (en) * 1965-10-12 1968-03-26 Osley & Whitney Inc Sprue bushing and nozzle assembly
CH497262A (de) * 1969-03-06 1970-10-15 Semperit Ag Spritzgiessform mit einem Absperrorgan im Einspritzkanal, insbesondere für die Herstellung von Formkörpern aus schaumfähigem Polyurethan
JPS4958156A (it) * 1972-10-06 1974-06-05
US4213751A (en) * 1978-06-06 1980-07-22 The Continental Group, Inc. Valve gate mechanism for injection molding

Also Published As

Publication number Publication date
BRPI0404120A (pt) 2005-08-23
EP1543936A3 (en) 2006-03-08
ATE365621T1 (de) 2007-07-15
CN2767114Y (zh) 2006-03-29
TW200521362A (en) 2005-07-01
DE602004007227D1 (de) 2007-08-09
EP1543936B1 (en) 2007-06-27
KR20050061282A (ko) 2005-06-22
CN1629526A (zh) 2005-06-22
EP1543936A2 (en) 2005-06-22

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