GB928954A - Extrusion head for production of nets of plastics material - Google Patents
Extrusion head for production of nets of plastics materialInfo
- Publication number
- GB928954A GB928954A GB27151/60A GB2715160A GB928954A GB 928954 A GB928954 A GB 928954A GB 27151/60 A GB27151/60 A GB 27151/60A GB 2715160 A GB2715160 A GB 2715160A GB 928954 A GB928954 A GB 928954A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chamber
- inner chamber
- chambers
- plastics material
- materials
- 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
- B29C48/33—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles with parts rotatable relative to each other
-
- 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
- B29C48/05—Filamentary, e.g. strands
-
- 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
- B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
- B29C48/307—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets specially adapted for bringing together components, e.g. melts within the die
-
- 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
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
-
- 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
- B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2028/00—Nets or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
928,954. Extruding plastic nets. NORDDEUTSCHE SEEKABELWERKE A.G. Aug. 5, 1960 [Jan. 13, 1960], No. 27151/60. Class 87(2). An extrusion head for producing knotless extruded nets of plastics material has two chambers 10, 11 rotatable independently of one another and provided with nozzles 12, 13 respectively, chamber 10 being mounted axially within the space enclosed by chamber 11. In the embodiment illustrated in Fig. 1, both chambers 10, 11 are connected to a common worm press (not shown) by means of a pipe union 14. The inner chamber 10 is driven by means of an axial shaft 15 which passes through the pipe union 14 and engages by way of vanes 16 in grooves 17 in the wall of the chamber 10. In order to regulate the flow of plastics material M into the inner chamber 10, the driving shaft 15 is axially adjustable and provided with a valve body 18 co-operating with a valve seat 19 formed on the upper edge of the wall of the chamber 10. By this means the relative diameters of the threads emerging from the nozzles 12, 13 are controlled. The diameters of the threads may be varied by varying the worm speed or the delivery speed of the completed net. The chambers 10, 11 are driven by means of gear wheels 21, 22 respectively so as to execute an opposed rotary movement relative to one another, preferably rotating at the same speed but in opposite directions. In a second embodiment, Fig. 3, the driving shaft 15 is hollow to feed plastics material M 1 from a second worm press (not shown) to the inner chamber 10. The driving shaft 15 in this case is advanced to such an extent in the extrusion direction that its valve body 18 abuts against the valve seat 19, thus preventing material M from the first worm press from entering the inner chamber 10. Materials M and M 1 may be different thermoplastic materials or the same material but of different colours. The two chambers 10, 11 may be fed from only one worm press, however, if the valve 18, 19 is open and the mouth 15a of the hollow shaft 15 closed, for example by means of a stopper. It is also possible, by having the valve 18, 19 open to cause the plastics materials to mix in the inner chamber 10, a mixture of materials M and M 1 thus being extruded from this chamber.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEN17753A DE1109273B (en) | 1959-02-09 | 1960-01-13 | Electric discharge tube in the manner of a klystron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB928954A true GB928954A (en) | 1963-06-19 |
Family
ID=7340455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27151/60A Expired GB928954A (en) | 1960-01-13 | 1960-08-05 | Extrusion head for production of nets of plastics material |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB928954A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2156263A (en) * | 1984-03-27 | 1985-10-09 | Conwed Corp | Plastic net composed of co-extruded composite strands |
| US4661389A (en) * | 1984-03-27 | 1987-04-28 | Leucadia, Inc. | Multiple-layer reinforced laminate |
| EP0752903B1 (en) * | 1994-03-31 | 2004-11-24 | Ineos Fluor Holdings Limited | Solvent extraction process |
-
1960
- 1960-08-05 GB GB27151/60A patent/GB928954A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2156263A (en) * | 1984-03-27 | 1985-10-09 | Conwed Corp | Plastic net composed of co-extruded composite strands |
| US4656075A (en) * | 1984-03-27 | 1987-04-07 | Leucadia, Inc. | Plastic net composed of co-extruded composite strands |
| US4661389A (en) * | 1984-03-27 | 1987-04-28 | Leucadia, Inc. | Multiple-layer reinforced laminate |
| EP0752903B1 (en) * | 1994-03-31 | 2004-11-24 | Ineos Fluor Holdings Limited | Solvent extraction process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4124307A (en) | Homogenizer for viscous materials | |
| GB996432A (en) | Extruded sheet material and apparatus and method for making same | |
| ES374709A1 (en) | Continuously operating screw machine for the treatment of plastic masses | |
| GB1059595A (en) | Improvements in or relating to worm extruders | |
| GB1225332A (en) | ||
| GB1381386A (en) | Apparatus for preparing and extruding synthetic materials | |
| GB1074823A (en) | A screw extrusion machine for working and processing synthetic thermoplastic compositions | |
| GB1385235A (en) | Advancing and working of plastics materials | |
| GB1021648A (en) | Mixing apparatus | |
| GB1360310A (en) | Producing plastics products | |
| US3035304A (en) | Apparatus for working of thermoplastic synthetic plastics in screw presses | |
| GB1159453A (en) | Improvements in or relating to the Extrusion of Plastics Tubing | |
| US1516841A (en) | Machine for making articles of plastic compounds of different colors | |
| US3046602A (en) | Extruding apparatus | |
| GB997608A (en) | Apparatus for and method of feeding stock into an extruder | |
| GB1019015A (en) | Process and apparatus for producing plastic net | |
| GB928954A (en) | Extrusion head for production of nets of plastics material | |
| GB1478106A (en) | Screw extruder for thermoplastics materials | |
| GB1167850A (en) | Apparatus for Processing Plastifiable Masses. | |
| GB1312222A (en) | Screw piston feed device | |
| US2477170A (en) | Process and apparatus for making variegated plastic articles | |
| GB1123876A (en) | Improvements in or relating to the extrusion of plastics materials | |
| GB1345540A (en) | Thermoplastic extrudates of mottled appearance | |
| GB996102A (en) | Improvements in or relating to the processing of plastic materials | |
| GB1189484A (en) | Process and Apparatus for Mixing and Homogenising Viscous Liquids |