GB2008278A - Flow Control Device - Google Patents
Flow Control DeviceInfo
- Publication number
- GB2008278A GB2008278A GB7842905A GB7842905A GB2008278A GB 2008278 A GB2008278 A GB 2008278A GB 7842905 A GB7842905 A GB 7842905A GB 7842905 A GB7842905 A GB 7842905A GB 2008278 A GB2008278 A GB 2008278A
- Authority
- GB
- United Kingdom
- Prior art keywords
- flow
- channel
- manifold
- disposed
- restrictor
- 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.)
- Granted
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
- 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
- B29C48/255—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
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
-
- 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
- B29C48/06—Rod-shaped
-
- 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
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- 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)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Abstract
The device is for regulating the flow of molten polymer to a number of extrusion dies A, B, C connected to a common manifold M. The manifold has a primary flow channel 41 which has outlets at each end to secondary flow channels 42, 44 which lead to the extrusion dies. At least one intermediate secondary channel 43 is also disposed between the ends of the manifold, leading to another extrusion die or dies. A flow restrictor 50 is disposed in the primary flow channel and a respective flow restrictor 60 is disposed in the or each intermediate secondary channel. Each restrictor 50 or 60 comprises a rod adjustably mounted in the associated channel to vary the effective restricted lengths of the flow paths between the manifold inlet 40 and the die outlets. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/849,050 US4170450A (en) | 1976-12-23 | 1977-11-07 | Flow distribution valve system for control of extrusion from multiple die orifices |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2008278A true GB2008278A (en) | 1979-05-31 |
GB2008278B GB2008278B (en) | 1982-02-17 |
Family
ID=25304944
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7842905A Expired GB2008278B (en) | 1977-11-07 | 1978-11-02 | Flow control valve |
Country Status (10)
Country | Link |
---|---|
JP (1) | JPS5477666A (en) |
AU (1) | AU519111B2 (en) |
CA (1) | CA1093934A (en) |
CH (1) | CH633218A5 (en) |
DE (1) | DE2847470A1 (en) |
ES (1) | ES474827A2 (en) |
FR (1) | FR2407813A2 (en) |
GB (1) | GB2008278B (en) |
IT (1) | IT1160300B (en) |
NL (1) | NL7810687A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2146139A (en) * | 1983-08-31 | 1985-04-11 | Ca Minister Nat Defence | Laminar flow device and element |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB902099A (en) * | 1959-10-28 | 1962-07-25 | Monsanto Chemicals | Improvements relating to extrusion |
FR1317853A (en) * | 1961-03-20 | 1963-05-08 | ||
US3267194A (en) * | 1964-01-16 | 1966-08-16 | Owens Illinois Inc | Method and apparatus for feeding plastic material |
US3477097A (en) * | 1965-04-01 | 1969-11-11 | Owens Illinois Inc | System for dispensing material accurately through multiple orifices |
US4081231A (en) * | 1976-12-23 | 1978-03-28 | Mobil Oil Corporation | Flow distribution valve for dual thermoplastic tube extrusion |
-
1978
- 1978-10-26 NL NL7810687A patent/NL7810687A/en not_active Application Discontinuation
- 1978-10-31 CA CA315,314A patent/CA1093934A/en not_active Expired
- 1978-11-02 DE DE19782847470 patent/DE2847470A1/en active Granted
- 1978-11-02 GB GB7842905A patent/GB2008278B/en not_active Expired
- 1978-11-03 AU AU41356/78A patent/AU519111B2/en not_active Expired
- 1978-11-06 CH CH1140378A patent/CH633218A5/en not_active IP Right Cessation
- 1978-11-06 ES ES474827A patent/ES474827A2/en not_active Expired
- 1978-11-06 IT IT2947378A patent/IT1160300B/en active
- 1978-11-07 FR FR7831480A patent/FR2407813A2/en active Granted
- 1978-11-07 JP JP13724078A patent/JPS5477666A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2146139A (en) * | 1983-08-31 | 1985-04-11 | Ca Minister Nat Defence | Laminar flow device and element |
Also Published As
Publication number | Publication date |
---|---|
DE2847470A1 (en) | 1979-05-10 |
CH633218A5 (en) | 1982-11-30 |
FR2407813A2 (en) | 1979-06-01 |
IT1160300B (en) | 1987-03-11 |
GB2008278B (en) | 1982-02-17 |
FR2407813B2 (en) | 1982-12-10 |
DE2847470C2 (en) | 1987-09-03 |
JPS611286B2 (en) | 1986-01-16 |
IT7829473A0 (en) | 1978-11-06 |
CA1093934A (en) | 1981-01-20 |
AU519111B2 (en) | 1981-11-05 |
ES474827A2 (en) | 1979-04-16 |
AU4135678A (en) | 1979-05-17 |
JPS5477666A (en) | 1979-06-21 |
NL7810687A (en) | 1979-05-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |