GB1215121A - Die assembly - Google Patents
Die assemblyInfo
- Publication number
- GB1215121A GB1215121A GB35/69A GB3569A GB1215121A GB 1215121 A GB1215121 A GB 1215121A GB 35/69 A GB35/69 A GB 35/69A GB 3569 A GB3569 A GB 3569A GB 1215121 A GB1215121 A GB 1215121A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mandrel
- die
- spider
- chamber
- extrusion
- 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
- B29C48/325—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles being adjustable, i.e. having adjustable exit sections
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
1,215,121. Extrusion dies. ETHYL CORP. 1 Jan., 1969 [4 Jan., 1968], No. 35/69. Heading B5A. An extrusion die, particularly intended for the production of blow-mouldable parisons, comprises outer die parts 32, 42, 42a, a spider 23 mounted on die part 42 and a hollow, resiliently deformable, mandrel 31 mounted on the spider, the die producing tubular extrudate of varying wall thickness by deformation of the mandrel. As shown, spider 23 is provided with a chamber 22 which houses a piston 21, the latter carrying a rod 25 which extends to end face 40 of mandrel 31. With the admission of hydraulic fluid via conduit 29 to chamber 22, mandrel 31 is longitudinally extended, inwardly bevelled surfaces 38, 39, thereby being brought closer together and the thickness of the extrudate reduced. Alternatively, the mandrel and die part 32 may have outwardly bevelled surfaces, the extrusion gap increasing on extension of the mandrel. Piston 21 is provided with seal rings 24, and chamber 22 with a port 30 for the removal of seepage. Mandrel 31 is preferably made of metal, the preferred metal being titanium and preferably also, the interior surfaces of the die are chromium plated. Die part 32 may be heated. Specific extrudable materials mentioned are polyethylene, polystyrene and PVC.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US69563668A | 1968-01-04 | 1968-01-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1215121A true GB1215121A (en) | 1970-12-09 |
Family
ID=24793829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB35/69A Expired GB1215121A (en) | 1968-01-04 | 1969-01-01 | Die assembly |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE756272Q (en) |
| DE (1) | DE1900318B2 (en) |
| FR (1) | FR1601143A (en) |
| GB (1) | GB1215121A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106985211A (en) * | 2017-05-18 | 2017-07-28 | 江苏德克瑞斯塑胶制品有限公司 | A kind of plastic shape-forming mould with dedusting waste discharge function |
-
0
- BE BE756272D patent/BE756272Q/en active
-
1968
- 1968-12-23 FR FR1601143D patent/FR1601143A/fr not_active Expired
-
1969
- 1969-01-01 GB GB35/69A patent/GB1215121A/en not_active Expired
- 1969-01-03 DE DE19691900318 patent/DE1900318B2/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE1900318A1 (en) | 1969-07-31 |
| DE1900318B2 (en) | 1971-04-29 |
| FR1601143A (en) | 1970-08-10 |
| BE756272Q (en) | 1971-03-01 |
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