GB987809A - Improvements in or relating to extrusion dies for producing tubing from synthetic plastics - Google Patents
Improvements in or relating to extrusion dies for producing tubing from synthetic plasticsInfo
- Publication number
- GB987809A GB987809A GB10035/63A GB1003563A GB987809A GB 987809 A GB987809 A GB 987809A GB 10035/63 A GB10035/63 A GB 10035/63A GB 1003563 A GB1003563 A GB 1003563A GB 987809 A GB987809 A GB 987809A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tubing
- die
- annular
- flow path
- extruded
- 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.)
- Expired
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
- B29C48/30—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
- B29C48/03—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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
987,809. Extrusion dies. COSHAM ENGINEERING DESIGNS Ltd. March 12, 1964 [March 13, 1963], No. 10035/63. Headings B5A and B5B. A crosshead extrusion die for preparing synthetic plastics tubing 21 comprises a flow channel 1 leading tangentially to an annular or involute stationary flow chamber 2 substantially encircling a rotatable die body 5A, 5B within which an annular flow path 4 leads from the flow chamber 2 to the concentric die lips 8 where the tubing is extruded. The annular flow path 4 includes a portion 7 of tapering cross-section. A plurality of flow paths 3 lead tangentially from chamber 2 to annular flow path 4. The die body 5A, 5B is rotatably mounted in bearing and sealing rings 10, and is driven from electric motor 15 through a chain drive and pinion wheel 19. Thermostatically controlled electrical heating jackets 11, 22 are provided. Cooling means for the extruded tubing pass through bore 20 in the die. The extruded tubing is collapsed to form a film.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB10035/63A GB987809A (en) | 1963-03-13 | 1963-03-13 | Improvements in or relating to extrusion dies for producing tubing from synthetic plastics |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB10035/63A GB987809A (en) | 1963-03-13 | 1963-03-13 | Improvements in or relating to extrusion dies for producing tubing from synthetic plastics |
Publications (1)
Publication Number | Publication Date |
---|---|
GB987809A true GB987809A (en) | 1965-03-31 |
Family
ID=9960264
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB10035/63A Expired GB987809A (en) | 1963-03-13 | 1963-03-13 | Improvements in or relating to extrusion dies for producing tubing from synthetic plastics |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB987809A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3388426A (en) * | 1966-06-09 | 1968-06-18 | Gloucester Eng Co Inc | Blown film die apparatus |
US3440686A (en) * | 1966-12-29 | 1969-04-29 | Nat Distillers Chem Corp | Extrusion die having angularly moving central mandrel |
WO2005016627A1 (en) | 2003-08-13 | 2005-02-24 | Ruebbelke Ingo | Nozzle head for an extruder |
US7381042B2 (en) | 2003-10-15 | 2008-06-03 | Ruebbelke Ingo | Nozzle head for an extruder |
-
1963
- 1963-03-13 GB GB10035/63A patent/GB987809A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3388426A (en) * | 1966-06-09 | 1968-06-18 | Gloucester Eng Co Inc | Blown film die apparatus |
US3440686A (en) * | 1966-12-29 | 1969-04-29 | Nat Distillers Chem Corp | Extrusion die having angularly moving central mandrel |
WO2005016627A1 (en) | 2003-08-13 | 2005-02-24 | Ruebbelke Ingo | Nozzle head for an extruder |
CN100515728C (en) * | 2003-08-13 | 2009-07-22 | 英戈·鲁贝尔克 | Nozzle for extrusion machine |
US7381042B2 (en) | 2003-10-15 | 2008-06-03 | Ruebbelke Ingo | Nozzle head for an extruder |
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