GB1292468A – Valving mechanism and die for in-line extrusion of thermoplastics material
– Google Patents
GB1292468A – Valving mechanism and die for in-line extrusion of thermoplastics material
– Google Patents
Valving mechanism and die for in-line extrusion of thermoplastics material
Info
Publication number
GB1292468A
GB1292468A
GB61216/69A
GB6121669A
GB1292468A
GB 1292468 A
GB1292468 A
GB 1292468A
GB 61216/69 A
GB61216/69 A
GB 61216/69A
GB 6121669 A
GB6121669 A
GB 6121669A
GB 1292468 A
GB1292468 A
GB 1292468A
Authority
GB
United Kingdom
Prior art keywords
die
section
spider
bore
arms
Prior art date
1969-01-22
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
Application number
GB61216/69A
Inventor
Alkis Christofas
Andrew Anthony Dukert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pennwalt Corp
Original Assignee
Pennwalt Corp
Priority date (The priority date 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 date listed.)
1969-01-22
Filing date
1969-12-16
Publication date
1972-10-11
1969-12-16
Application filed by Pennwalt Corp
filed
Critical
Pennwalt Corp
1972-10-11
Publication of GB1292468A
publication
Critical
patent/GB1292468A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
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
B29C48/09—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
B29C48/03—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
B29C48/92—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
B29C2948/92514—Pressure
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
B29C2948/92523—Force; Tension
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
B29C2948/92571—Position, e.g. linear or angular
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
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
B29C2948/92904—Die; Nozzle zone
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
B29C48/07—Flat, e.g. panels
B29C48/08—Flat, e.g. panels flexible, e.g. films
Abstract
1292468 Extruder head valve PENNWALT CORP 16 Dec 1969 [22 Jan 1969] 61216/69 Heading B5A A polyvinylidene fluoride rod or tube P is extruded from an in-line die head including a melt flow control valve defined between a frustoconical seat 36 and an axially adjustable frusto-conical member 42, carried by a spider 38 which connects at arms 40 to a die head body section 16, and which arms 40 are followed by an annular flow zone 46, of greater flow area than that of the valve and spider, in which relaxation of the melt occurs. The die head additionally comprises body sections 12 and 50, of which the section 12 is attached to the extruder barrel and is provided with external threads 26 of opposite hand to external threads 28 of the body section 16, whereby the axial adjustment of the member 42 is effected by a threaded ring 30. The die 60 is attached to the body section 50 which carries a member 52 which is radially adjustable by screws 54, 56 and defines with a mandrel section 48 a constriction after the zone 46. The member 42, spider 38, mandrel section 48, and a further mandrel section 62 are provided with a bore 66, 68, which may contain an electrical cartridge heater 64, and additional heaters 70 may be located in bores 72 extending through the arms 40. Air or gas to expand the extruded pipe P may be admitted to the bore 66 via a fitting 76 and bore 74, the passage whereof past the cartridge heaters is facilitated by longitudinal fluting of the bores or of the exterior of the cartridge heaters, or by using a tubular cartridge heater. The die 60 may be surrounded by a heater band, and the mandrel defining the die outlet may be tapered down to a smaller diameter.
GB61216/69A
1969-01-22
1969-12-16
Valving mechanism and die for in-line extrusion of thermoplastics material
Expired
GB1292468A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US79310569A
1969-01-22
1969-01-22
Publications (1)
Publication Number
Publication Date
GB1292468A
true
GB1292468A
(en)
1972-10-11
Family
ID=25159105
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB61216/69A
Expired
GB1292468A
(en)
1969-01-22
1969-12-16
Valving mechanism and die for in-line extrusion of thermoplastics material
Country Status (7)
Country
Link
US
(1)
US3583033A
(en)
JP
(1)
JPS4923312B1
(en)
BE
(1)
BE744577A
(en)
DE
(1)
DE2002582A1
(en)
FR
(1)
FR2028862A1
(en)
GB
(1)
GB1292468A
(en)
NL
(1)
NL7000030A
(en)
Families Citing this family (12)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3702226A
(en)
*
1971-01-20
1972-11-07
Goodrich Co B F
Plastic molding
US3981672A
(en)
*
1973-03-05
1976-09-21
Phillips Petroleum Company
Apparatus for forming a parison
US3899276A
(en)
*
1973-05-29
1975-08-12
Beloit Corp
Annular extrusion die with back pressure control
JPS5193861U
(en)
*
1974-09-02
1976-07-28
DE3065921D1
(en)
*
1979-12-19
1984-01-19
Eropol Sa
Extrusion enclosure for controlled circular distribution of the extruded material and for an incorporated nozzle
US4770624A
(en)
*
1984-03-23
1988-09-13
Ziegler William E
Vertical parison extruders for blow molding machines
US4711623A
(en)
*
1986-05-13
1987-12-08
Mobil Oil Corporation
Annular extrusion die with internal choke ring and spider mandrel
US4918017A
(en)
*
1989-02-03
1990-04-17
Bridgestone/Firestone, Inc.
Screen assembly for screening elastomeric material
CN101166617B
(en)
2005-04-27
2012-01-04
倍耐力轮胎股份公司
Method for extruding a polymeric material and extrusion head therefor
US8147739B2
(en)
*
2005-04-27
2012-04-03
Prysmian Cavi E Sistemi Energia S.R.L.
Cable manufacturing process
US8758003B2
(en)
*
2009-09-22
2014-06-24
American Maplan Corporation
Multiple spider head
US20190291323A1
(en)
*
2017-07-05
2019-09-26
Superior Essex International LP
Variable Land Extrusion Assembly
1969
1969-01-22
US
US793105*A
patent/US3583033A/en
not_active
Expired – Lifetime
1969-12-16
GB
GB61216/69A
patent/GB1292468A/en
not_active
Expired
1970
1970-01-02
NL
NL7000030A
patent/NL7000030A/xx
unknown
1970-01-19
JP
JP45004502A
patent/JPS4923312B1/ja
active
Pending
1970-01-19
BE
BE744577D
patent/BE744577A/en
unknown
1970-01-20
FR
FR7001868A
patent/FR2028862A1/fr
not_active
Withdrawn
1970-01-21
DE
DE19702002582
patent/DE2002582A1/en
active
Pending
Also Published As
Publication number
Publication date
JPS4923312B1
(en)
1974-06-14
FR2028862A1
(en)
1970-10-16
DE2002582A1
(en)
1970-07-30
US3583033A
(en)
1971-06-08
NL7000030A
(en)
1970-07-24
BE744577A
(en)
1970-07-20
Similar Documents
Publication
Publication Date
Title
GB1292468A
(en)
1972-10-11
Valving mechanism and die for in-line extrusion of thermoplastics material
US4712993A
(en)
1987-12-15
Extrusion die for externally ribbed plastic tubing
GB1375409A
(en)
1974-11-27
GB1144046A
(en)
1969-03-05
Method and apparatus for the manufacturing of tubes of plastics material
GB1477616A
(en)
1977-06-22
Tube extrusion head
GB941127A
(en)
1963-11-06
Improved method and device for producing hollow bodies from thermoplastic synthetic material
GB1290025A
(en)
1972-09-20
JPH04250018A
(en)
1992-09-04
Coextrusion device and method using elastic mold for changing of outer profile of cylindrical extruded body
GB1129343A
(en)
1968-10-02
Extrusion of thermoplastic resinous material and apparatus therefor
GB1359219A
(en)
1974-07-10
Process and apparatus for the continuous production and/or covering of extruded sections
GB1029620A
(en)
1966-05-18
Extrusion head for tubular films
US3551951A
(en)
1971-01-05
Multiple extruder head for extruders
GB1093653A
(en)
1967-12-06
Extruder head with mandrel for extruding hollow profiles
GB1175127A
(en)
1969-12-23
Method and Apparatus for Forming Hollow Tubing
US3135994A
(en)
1964-06-09
Apparatus for adjusting back-pressure in extruders during continuous operations
US3206802A
(en)
1965-09-21
Plastic material extrusion head
GB1253454A
(en)
1971-11-17
Die assembly
GB1188907A
(en)
1970-04-22
Extrusion Apparatus.
GB1159308A
(en)
1969-07-23
Method and Apparatus for Extruding Tubes and Pipes
DE1013865B
(en)
1957-08-14
Spray head for the production of tubular films
GB1128664A
(en)
1968-10-02
Process and apparatus for the manufacture of tubular bodies from thermoplastics material
GB1149276A
(en)
1969-04-23
Extrusion head for a screw extruder for plastics material
GB1161861A
(en)
1969-08-20
Improvements in or relating to Tubular Film Extrusion.
GB929200A
(en)
1963-06-19
Improvements in or relating to extrusion dies for the production of tubular films
GB1170870A
(en)
1969-11-19
Multiple extruding heads for extruders
Legal Events
Date
Code
Title
Description
1973-02-21
PS
Patent sealed [section 19, patents act 1949]
1976-07-14
PLNP
Patent lapsed through nonpayment of renewal fees
