IT1235918B - Testa di estrusione di piu'parison da un unico estrusore - Google Patents

Testa di estrusione di piu'parison da un unico estrusore

Info

Publication number
IT1235918B
IT1235918B IT3684A IT368489A IT1235918B IT 1235918 B IT1235918 B IT 1235918B IT 3684 A IT3684 A IT 3684A IT 368489 A IT368489 A IT 368489A IT 1235918 B IT1235918 B IT 1235918B
Authority
IT
Italy
Prior art keywords
parison
extrusion head
single extruder
extruder
extrusion
Prior art date
Application number
IT3684A
Other languages
English (en)
Other versions
IT8903684A0 (it
Inventor
Giovanni Bonardelli
Renzo Tamburini
Original Assignee
Automa 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 Automa Spa filed Critical Automa Spa
Priority to IT3684A priority Critical patent/IT1235918B/it
Publication of IT8903684A0 publication Critical patent/IT8903684A0/it
Priority to EP19900830479 priority patent/EP0427685A3/en
Application granted granted Critical
Publication of IT1235918B publication Critical patent/IT1235918B/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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/695—Flow dividers, e.g. breaker plates
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/255—Flow control means, e.g. valves
    • B29C48/2556—Flow control means, e.g. valves provided in or in the proximity of dies
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • B29C2948/926—Flow or feed rate
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92904—Die; Nozzle zone
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/345—Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
IT3684A 1989-11-06 1989-11-06 Testa di estrusione di piu'parison da un unico estrusore IT1235918B (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT3684A IT1235918B (it) 1989-11-06 1989-11-06 Testa di estrusione di piu'parison da un unico estrusore
EP19900830479 EP0427685A3 (en) 1989-11-06 1990-10-23 An extruding head enabling the extrusion of a plurality of parisons from a single extruder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT3684A IT1235918B (it) 1989-11-06 1989-11-06 Testa di estrusione di piu'parison da un unico estrusore

Publications (2)

Publication Number Publication Date
IT8903684A0 IT8903684A0 (it) 1989-11-06
IT1235918B true IT1235918B (it) 1992-12-02

Family

ID=11111374

Family Applications (1)

Application Number Title Priority Date Filing Date
IT3684A IT1235918B (it) 1989-11-06 1989-11-06 Testa di estrusione di piu'parison da un unico estrusore

Country Status (2)

Country Link
EP (1) EP0427685A3 (it)
IT (1) IT1235918B (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19703492A1 (de) * 1997-01-31 1998-08-06 Bekum Maschf Gmbh Verteiler für in einem Extruder plastifizierte Kunststoffschmelze für deren Aufteilung auf mehrere Beareitungswerkzeuge
CN103042674B (zh) * 2012-12-08 2016-01-13 芜湖海螺挤出装备有限公司 一种塑料主型材双腔共挤挤出成型模具

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB780439A (en) * 1953-12-02 1957-07-31 L & I Glenn Proprietary Ltd Improvements in and relating to apparatus for the manufacture of hollow articles from thermo-plastic materials
DE1142057B (de) * 1961-03-13 1963-01-03 Mannesmann Ag Maschine zum gleichzeitigen Herstellen von mehreren Rohren aus Kunststoff
US3256563A (en) * 1963-11-18 1966-06-21 Owens Illinois Glass Co Adjustable extrusion orifice structure
US3577291A (en) * 1968-02-01 1971-05-04 Masaaki Uchida Process for continuously molding bottle from thermoplastic resin,charging and sealing
DE2220319A1 (de) * 1972-04-21 1973-11-08 Siemens Ag Mehrfachpresskopf fuer strangpressen zum gleichzietigen umhuellen mehrerer elektrischer leiter oder kabel
AT356372B (de) * 1977-06-30 1980-04-25 Anger Anton Maschbau Anlage zum herstellen von rohren und schlaeuchen aus thermoplastischem kunststoff
US4770624A (en) * 1984-03-23 1988-09-13 Ziegler William E Vertical parison extruders for blow molding machines
ES2030894T3 (es) * 1987-07-08 1992-11-16 Soplar Sa Dispositivo de coextrusion
ES2030589T3 (es) * 1988-12-09 1992-11-01 Soplar Sa Cabeza de extrusion

Also Published As

Publication number Publication date
EP0427685A3 (en) 1991-07-17
IT8903684A0 (it) 1989-11-06
EP0427685A2 (en) 1991-05-15

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Legal Events

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0001 Granted