IT1274835B - Testa di coestrusione per macchine termoformatrici per soffiaggio, concambio rapido degli strati colorati della materia plastica estrusa. - Google Patents
Testa di coestrusione per macchine termoformatrici per soffiaggio, concambio rapido degli strati colorati della materia plastica estrusa.Info
- Publication number
- IT1274835B IT1274835B ITBO940331A ITBO940331A IT1274835B IT 1274835 B IT1274835 B IT 1274835B IT BO940331 A ITBO940331 A IT BO940331A IT BO940331 A ITBO940331 A IT BO940331A IT 1274835 B IT1274835 B IT 1274835B
- Authority
- IT
- Italy
- Prior art keywords
- blowing
- plastic material
- quick change
- colored layers
- extruded plastic
- Prior art date
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
- B29C48/70—Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows
-
- 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
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
- B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
-
- 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
- B29C48/32—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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITBO940331A IT1274835B (it) | 1994-07-14 | 1994-07-14 | Testa di coestrusione per macchine termoformatrici per soffiaggio, concambio rapido degli strati colorati della materia plastica estrusa. |
EP95109807A EP0692363B1 (en) | 1994-07-14 | 1995-06-23 | Coextrusion head for blow-thermoforming machines with rapid changing of the coloured layers of the extruded plastic |
DE69516589T DE69516589T2 (de) | 1994-07-14 | 1995-06-23 | Coextrusionskopf für Blas-Warmformmaschinen, mit Schnellwechselmöglichkeit der extrudierten gefärbten Schichten |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITBO940331A IT1274835B (it) | 1994-07-14 | 1994-07-14 | Testa di coestrusione per macchine termoformatrici per soffiaggio, concambio rapido degli strati colorati della materia plastica estrusa. |
Publications (3)
Publication Number | Publication Date |
---|---|
ITBO940331A0 ITBO940331A0 (it) | 1994-07-14 |
ITBO940331A1 ITBO940331A1 (it) | 1996-01-14 |
IT1274835B true IT1274835B (it) | 1997-07-25 |
Family
ID=11339935
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITBO940331A IT1274835B (it) | 1994-07-14 | 1994-07-14 | Testa di coestrusione per macchine termoformatrici per soffiaggio, concambio rapido degli strati colorati della materia plastica estrusa. |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0692363B1 (it) |
DE (1) | DE69516589T2 (it) |
IT (1) | IT1274835B (it) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1282563B1 (it) * | 1996-05-07 | 1998-03-27 | Nupi Spa | Metodo e testa di estrusione per realizzare tubi in materie plastiche aventi scarsa tolleranza alle pressioni di estrusione |
DE602006018797D1 (de) * | 2005-04-08 | 2011-01-20 | Ole-Bendt Rasmussen | Vorrichtung zum Folienstrangpressen |
CN104029370A (zh) * | 2014-06-10 | 2014-09-10 | 宁波长壁流体动力科技有限公司 | 一种冷喂料橡胶挤出机机头 |
CN106426870B (zh) * | 2016-11-30 | 2018-10-30 | 中山市富邦机械有限公司 | 一种塑料中空成型机的芯棒 |
CN111890656B (zh) * | 2020-07-23 | 2021-06-29 | 长园电力技术有限公司 | 500kV及以下单芯交联电力电缆绝缘接头成型装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2734224A (en) * | 1956-02-14 | winstead | ||
US3860686A (en) * | 1972-06-07 | 1975-01-14 | Western Electric Co | Method of and apparatus for extruding plastic materials |
US3947173A (en) * | 1972-09-13 | 1976-03-30 | Western Electric Company, Inc. | Apparatus for extruding concentric plastic sheaths |
US4017240A (en) * | 1975-11-19 | 1977-04-12 | Rubbermaid Incorporated | Die for extruding sheet material |
GB2109740B (en) * | 1981-10-16 | 1984-12-12 | Fujikura Ltd | Extruder cross-head for extruding material around an elongated article |
IT1213469B (it) * | 1986-07-30 | 1989-12-20 | Soffiaggio Tecnica Srl | Dispositivo di testa di estrusione per polimeri termoplastici. |
DE3910493A1 (de) * | 1989-04-01 | 1990-10-04 | Erich Beck | Extrusionsduese fuer blasfolien- und rohrproduktionen aus thermoplastischen kunststoffen |
NL9201457A (nl) * | 1992-08-14 | 1994-03-01 | Rollepaal B V Maschf De | Verdeelkop voor het uit één of meer stromen geëxtrudeerd thermoplastisch kunststofmateriaal vormen van een buisvormig profiel. |
-
1994
- 1994-07-14 IT ITBO940331A patent/IT1274835B/it active IP Right Grant
-
1995
- 1995-06-23 DE DE69516589T patent/DE69516589T2/de not_active Expired - Fee Related
- 1995-06-23 EP EP95109807A patent/EP0692363B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69516589T2 (de) | 2001-01-04 |
EP0692363A2 (en) | 1996-01-17 |
ITBO940331A1 (it) | 1996-01-14 |
ITBO940331A0 (it) | 1994-07-14 |
DE69516589D1 (de) | 2000-06-08 |
EP0692363A3 (en) | 1996-09-18 |
EP0692363B1 (en) | 2000-05-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970626 |