JPS55103932A - Apparatus for producing biaxially stretched tubular plastic film - Google Patents
Apparatus for producing biaxially stretched tubular plastic filmInfo
- Publication number
- JPS55103932A JPS55103932A JP1237879A JP1237879A JPS55103932A JP S55103932 A JPS55103932 A JP S55103932A JP 1237879 A JP1237879 A JP 1237879A JP 1237879 A JP1237879 A JP 1237879A JP S55103932 A JPS55103932 A JP S55103932A
- Authority
- JP
- Japan
- Prior art keywords
- hot air
- section
- detector
- air blower
- plastic film
- 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
Landscapes
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
PURPOSE: To obtain a biaxially stretched tubular plastic film of a high thickness uniformity, by using a hot air blower ring which is adapted to supply hot air to such a portion of a plastic tube material that is immediately before a stretching zone and which is divided into several sections to allow the temperature of hot air from each section to be regulated in accordance a lateral displacement of the plastic tube material, whereby the stretching bubble can be stabilized.
CONSTITUTION: The eccentricity of a starting tube 1 is detected by detector unit 7 (7-1W7-4), from which a signal is sent to a regulator 8, whereby the temperature of a section regulation heater unit 9 is regulated. The detector 7-1 is opposed to a section 9-1 of a hot air blower ring 6, the detector 7-2 to a section 9-2, and so on. Air is supplied to the hot air blower ring 6 by a blower 12. The air from the blower 12 is heated to a predetermined temperature by a heater 10 in cooperation with a thermometer 11 so as to be fed to each section of the hot air blower ring 6 separately. Even when a starting tube has unavoidable or uncontrollable overs and shorts in thickness, and even when a starting tube is heated in an unbalanced manner, it can be stretched stably so that a product of an excellent quality can be obtained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1237879A JPS55103932A (en) | 1979-02-06 | 1979-02-06 | Apparatus for producing biaxially stretched tubular plastic film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1237879A JPS55103932A (en) | 1979-02-06 | 1979-02-06 | Apparatus for producing biaxially stretched tubular plastic film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55103932A true JPS55103932A (en) | 1980-08-08 |
| JPS5730369B2 JPS5730369B2 (en) | 1982-06-28 |
Family
ID=11803602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1237879A Granted JPS55103932A (en) | 1979-02-06 | 1979-02-06 | Apparatus for producing biaxially stretched tubular plastic film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55103932A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5911962U (en) * | 1982-07-14 | 1984-01-25 | 株式会社土屋製作所 | roll over valve |
| JPS60159880U (en) * | 1984-03-31 | 1985-10-24 | ダイハツ工業株式会社 | Fuel spill prevention valve |
| AU610366B2 (en) * | 1988-03-31 | 1991-05-16 | Idemitsu Petrochemical Co., Ltd. | Method of and apparatus for manufacturing biaxially oriented film |
-
1979
- 1979-02-06 JP JP1237879A patent/JPS55103932A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5730369B2 (en) | 1982-06-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1096127A (en) | Biaxially orienting tubular films of thermoplastic material | |
| DK636388A (en) | METHOD AND APPARATUS FOR PREPARING HOLE ITEMS | |
| JPS5611232A (en) | Jig for stretch blow molding piece | |
| KR890014234A (en) | Method for manufacturing biaxially oriented film and apparatus therefor | |
| ES413180A1 (en) | Apparatus for imparting an oblique orientation to tubular film | |
| ES408745A2 (en) | Process and device for the stretching of plastics sheets | |
| GB1274379A (en) | Production of oriented laminated thermoplastic film | |
| GB1279187A (en) | Process and apparatus for stretching a thermoplastic resin film | |
| JPS55103932A (en) | Apparatus for producing biaxially stretched tubular plastic film | |
| GB1130318A (en) | Process and apparatus for the production of multi-layer tubes from thermoplastics | |
| US3296352A (en) | Tubular film manufacture | |
| GB1458301A (en) | Apparatus for processing thin plastics film | |
| US4341729A (en) | Method and apparatus for making biaxially stretched tubular films | |
| JPS5644627A (en) | Molding of plastic sheet | |
| JPS5447856A (en) | Continuous hot extruder | |
| JPS55137916A (en) | Device for molding thermoplastic sheet continuously in subsequent process to extrusion | |
| ES456967A1 (en) | Process and apparatus for producing a thermoplastic film | |
| JPS5653042A (en) | Production of heat-shrinkable tube | |
| JPS54110276A (en) | Manufacture of highy drawn film and its device | |
| ES441450A1 (en) | Manufacture of thin walled plastics material articles | |
| JPS55158942A (en) | Method and apparatus for producing foamed sheet | |
| GB1248171A (en) | The heat stabilisation of oriented thermoplastic films | |
| JPS54117568A (en) | Production of thermoplastic resin foam | |
| JPS5738116A (en) | Method and apparatus for preparing slide fastener elements | |
| SU797891A1 (en) | Method of cutting thermoplastic articles |