GB1423745A - Method and apparatus for manufacturing tubular film from thermoplastic resin - Google Patents
Method and apparatus for manufacturing tubular film from thermoplastic resinInfo
- Publication number
- GB1423745A GB1423745A GB754773A GB754773A GB1423745A GB 1423745 A GB1423745 A GB 1423745A GB 754773 A GB754773 A GB 754773A GB 754773 A GB754773 A GB 754773A GB 1423745 A GB1423745 A GB 1423745A
- Authority
- GB
- United Kingdom
- Prior art keywords
- film
- water cooler
- air
- die
- cooler
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
- B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
- B29C48/903—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies externally
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
- B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
- B29C48/902—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies internally
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9115—Cooling of hollow articles
- B29C48/912—Cooling of hollow articles of tubular 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
- B29C48/92—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
- B29C2948/92009—Measured parameter
- B29C2948/92019—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
- B29C2948/92009—Measured parameter
- B29C2948/92114—Dimensions
- B29C2948/92123—Diameter or circumference
-
- 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
- B29C2948/92009—Measured parameter
- B29C2948/92314—Particular value claimed
-
- 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
- B29C2948/92609—Dimensions
- B29C2948/92619—Diameter or circumference
-
- 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
- B29C2948/92809—Particular value claimed
-
- 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
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
-
- 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
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
- B29C48/905—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article using wet calibration, i.e. in a quenching tank
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9115—Cooling of hollow articles
- B29C48/912—Cooling of hollow articles of tubular films
- B29C48/913—Cooling of hollow articles of tubular films externally
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
1423745 Tubular films SHOWA DENKO KK 15 Feb 1973 [15 Feb 1972 (2) 30 June 1972] 7547/73 Heading B5B A tubular film F of thermoplastic resin is made by extruding through an annular die 1 into a cylindrical water cooler 2 in which it is contacted with cooling water flowing both in the same direction as and the opposite direction to the film, effecting vacuum sizing by means of a chamber 4, internally cooling the film by a mandrel M, and finally taking up the finished film. The film may be precooled by an air cooler, Fig. 5 (not shown), between the die and the water cooler through which air is passed countercurrent to the film. The diameter of the film may be controlled before it reaches the water cooler, Figs. 6-8 (not shown), by light sources and detectors which control the air pressure inside the tubular film, by operating solenoid valves. The air enters and leaves through pipes located in a central bore in the die. The mandrel, see Fig. 4, has an annular cooling water passageway 18 and a suction pipe 21 for removing condensed liquid from its interior, is downwardly tapered, and has a slightly roughened exterior. A porous cooling element 7 is located at the bottom of the water cooler. The examples relate to polyethylene or polypropylene film of 605 to 750 microns thickness and 100 mm. diameter having a take-up speed of 2À4 to 3À2 m./min.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1795572U JPS4894856U (en) | 1972-02-15 | 1972-02-15 | |
JP1525172A JPS4884153A (en) | 1972-02-15 | 1972-02-15 | |
JP1972076662U JPS5253755Y2 (en) | 1972-06-30 | 1972-06-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1423745A true GB1423745A (en) | 1976-02-04 |
Family
ID=27280935
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB754773A Expired GB1423745A (en) | 1972-02-15 | 1973-02-15 | Method and apparatus for manufacturing tubular film from thermoplastic resin |
Country Status (6)
Country | Link |
---|---|
CA (1) | CA999705A (en) |
CH (1) | CH557228A (en) |
FR (1) | FR2172299B1 (en) |
GB (1) | GB1423745A (en) |
IT (1) | IT979107B (en) |
NL (1) | NL7301985A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012159233A1 (en) * | 2011-05-24 | 2012-11-29 | 广东金明精机股份有限公司 | Cooling water ring device for blow-down type film blowing machine |
CN114789570A (en) * | 2022-03-24 | 2022-07-26 | 广州市普同实验分析仪器有限公司 | Film rigid blowing device and method thereof |
CN116168893A (en) * | 2022-12-23 | 2023-05-26 | 安徽龙庵电缆集团有限公司 | Processing technology of special flexible power cable |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2721609C2 (en) * | 1977-05-13 | 1986-07-10 | Reifenhäuser KG, 5210 Troisdorf | Control device for a plant for the production of blown plastic films |
CA1285114C (en) * | 1985-12-24 | 1991-06-25 | Ellis Fabian | Extrusion system |
ITMI20120767A1 (en) * | 2012-05-07 | 2013-11-08 | Sanplast Di Santoro Raimondo | GUIDE DEVICE FOR PLASTIC FILMS EXTRUDED TUBULARS INTEGRANT A MOBILE FUME FILTRATION SYSTEM |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1504477C3 (en) * | 1964-09-21 | 1974-05-09 | Esso Research And Engineering Co., Elizabeth, N.J. (V.St.A.) | Process for producing preferably transparent blown films by extruding a thermoplastic, in particular from polypropylene |
-
1973
- 1973-02-06 CA CA163,023A patent/CA999705A/en not_active Expired
- 1973-02-13 NL NL7301985A patent/NL7301985A/xx not_active Application Discontinuation
- 1973-02-14 IT IT7320386A patent/IT979107B/en active
- 1973-02-15 FR FR7305394A patent/FR2172299B1/fr not_active Expired
- 1973-02-15 GB GB754773A patent/GB1423745A/en not_active Expired
- 1973-02-15 CH CH218973A patent/CH557228A/en not_active IP Right Cessation
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012159233A1 (en) * | 2011-05-24 | 2012-11-29 | 广东金明精机股份有限公司 | Cooling water ring device for blow-down type film blowing machine |
CN114789570A (en) * | 2022-03-24 | 2022-07-26 | 广州市普同实验分析仪器有限公司 | Film rigid blowing device and method thereof |
CN114789570B (en) * | 2022-03-24 | 2024-05-17 | 广州市普同实验分析仪器有限公司 | Film rigid blowing device and method thereof |
CN116168893A (en) * | 2022-12-23 | 2023-05-26 | 安徽龙庵电缆集团有限公司 | Processing technology of special flexible power cable |
Also Published As
Publication number | Publication date |
---|---|
IT979107B (en) | 1974-09-30 |
FR2172299B1 (en) | 1976-11-05 |
DE2307276B2 (en) | 1976-12-02 |
NL7301985A (en) | 1973-08-17 |
FR2172299A1 (en) | 1973-09-28 |
DE2307276A1 (en) | 1973-08-23 |
CA999705A (en) | 1976-11-16 |
CH557228A (en) | 1974-12-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3296661A (en) | Apparatus for extruding suitably outlined parts made of thermoplastic synthetic material | |
JP2574414B2 (en) | Method and apparatus for producing a seamless tube extruded and stretched from a partially crystalline polymer | |
US2579815A (en) | Extrusion apparatus | |
US3169272A (en) | Apparatus for making plastic tubing | |
US4465449A (en) | Coextrusion feedblock for making lightweight, rigid thermoplastic pipe | |
US3546743A (en) | Die for extruding laminated plastic tube | |
US3819776A (en) | Process and apparatus for the production of tubes and tubular films | |
US3446689A (en) | Apparatus for the manufacture of plastic pipes | |
US3546745A (en) | Extrudate sizing sleeve | |
GB1423745A (en) | Method and apparatus for manufacturing tubular film from thermoplastic resin | |
US3947174A (en) | Apparatus for reproducing perforated seamless tubular films by means of compressed air | |
US3446359A (en) | Desalination assembly and its method of manufacture | |
DE68910624D1 (en) | Device for the production of tubes with annular fins. | |
US2491589A (en) | Apparatus for making tubing | |
US3805886A (en) | Apparatus for formation of thermoplastic film | |
US3886243A (en) | Method and apparatus for manufacturing tubular film from thermoplastic resin | |
US3446884A (en) | Extrusion process and apparatus for producing a thermoplastic pipe having a glossy surface | |
JPS6143175B2 (en) | ||
US3790651A (en) | Process for the manufacture of plasticcoated tubular articles | |
GB2000570A (en) | Multiple-layered plastics pipe and method and apparatus for its production | |
GB1585274A (en) | Production of rubber tubing from latex | |
US5112546A (en) | Method of controlling thickness of thermoplastic extruded profile | |
GB1231144A (en) | ||
US4294796A (en) | Extrusion processes and apparatus for quenching tubes | |
GB1295205A (en) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |