CN105729789A - Internal cooling device of tubular thin film production equipment - Google Patents
Internal cooling device of tubular thin film production equipment Download PDFInfo
- Publication number
- CN105729789A CN105729789A CN201610236050.9A CN201610236050A CN105729789A CN 105729789 A CN105729789 A CN 105729789A CN 201610236050 A CN201610236050 A CN 201610236050A CN 105729789 A CN105729789 A CN 105729789A
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- CN
- China
- Prior art keywords
- cold wind
- pipe
- cold
- hot
- hot blast
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- 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.)
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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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
- B29C2035/1658—Cooling using gas
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
An internal cooling device of tubular thin film production equipment comprises a mold, a cold air inlet pipe and a hot air exhaust pipe, wherein the cold air inlet pipe and the hot air exhaust pipe are arranged in the mold; and the device further comprises a cold and hot air reversing element and a freezing water pipe. The cold air inlet pipe is sleeved with the hot air exhaust pipe, and the hot air exhaust pipe is arranged in the mold; the cold and hot air reversing element is arranged on the mold and is communicated with the cold air inlet pipe and the hot air exhaust pipe, so that inner pipe cold air inlet and external pipe hot air exhaust are achieved; and the freezing water pipe is spirally arranged inside the cold air inlet pipe. Through improvement of the structure, the internal cooling device has the beneficial effects of being simple and reasonable in structure, excellent in performance, low in manufacturing cost, easy to produce and implement, good in cooling effect, high in production efficiency, uniform in thickness of a produced thin film, high in transparency and the like, and practicability is high.
Description
Technical field
The present invention relates to a kind of tubular film and produce equipment, specifically a kind of tubular film produces the interior chiller of equipment.
Background technology
It is the production equipment that plastic pellet heating and melting is blown out thin film again that tubular film produces equipment, and therefore thin film needs the process first passing through a cooling and shaping to carry out rolling again.If for the mode that the cooling of thin film is utilized under room temperature natural cooling, owing to room temperature is higher, it is typically in about 20 DEG C and there is certain undulatory property, therefore thin film cooling at room temperature is in fact not only incomplete but also uneven, the constriction coefficient of the thin film after such rolling is considerably beyond its theoretical value, cause thin film that serious became uneven phenomenon occurs after finally having shunk, so-called NG (nogood) product namely become, then needs a kind of chiller specially thin film cooled down.
The chiller being currently used for thin film adopts main cooling medium to be air, its operation principle is by room temperature or enters inside tubular film through overcooled Cryogenic air by airduct, take away the heat of thin film inner surface, thus reaching the effect of cooling film bubble, but it is relatively big that this chiller disadvantage is exactly heat loss, and cooling effect is poor, causes that the uneven film thickness produced is even, poor transparency, it is impossible to meet Production requirement.Therefore, it is necessary to improve further.
Summary of the invention
The purpose of the present invention aims to provide a kind of simple and reasonable, excellent performance, low cost of manufacture, easily produce, easily realize, good cooling results, production efficiency height and the production tubular film that rear film thickness is uniform, transparency is high produce the interior chiller of equipment, to overcome weak point of the prior art.
A kind of tubular film designed by this purpose produces the interior chiller of equipment, including mould be arranged on the cold wind blast pipe of mould inside, hot blast exhaust duct, it is characterised in that: also include cold-hot wind commutation element and chilled water pipe；Wherein, cold wind blast pipe is set in inside hot blast exhaust duct, and hot blast exhaust duct is arranged on mould inside, and cold-hot wind commutation element is arranged on mould and is interconnected with cold wind blast pipe and hot blast exhaust duct respectively, to realize the cold air intake of interior pipe, outer tube hot type wind；Described chilled water pipe is spiral to be arranged on inside cold wind blast pipe.
Described chilled water pipe is made up of pyrite, its one end is provided with water inlet, and middle part is provided with snakelike spire, and the other end is provided with outlet, chilled water pipe is arranged on inside cold wind blast pipe by snakelike spire, and chilled water enters from water inlet and flows through snakelike spire finally from outlet outflow.
The snakelike spire of described chilled water pipe and the inwall of cold wind blast pipe abut.
The spiral pipeline being arranged on inside cold wind blast pipe and coiling in water inlet of described snakelike spire is peripheral.
Described cold-hot wind commutation element is arranged on the top of mould and it is internally provided with cold wind tube chamber and hot blast tube chamber, and cold wind tube chamber and cold wind blast pipe are interconnected, and hot blast tube chamber and hot blast exhaust duct are interconnected.
The top of described cold-hot wind commutation element is provided with commutation chamber, and the top in commutation chamber is interconnected with hot blast exhaust duct, and bottom is interconnected with cold wind tube chamber and hot blast tube chamber respectively；Described cold wind tube chamber is arranged on warm-air pipe intracavity portion, and the outside of hot blast tube chamber is additionally provided with cold wind and discharges chamber.
Described commutation chamber is provided with next door, next door is provided with some vertical air ports and is interconnected with hot blast tube chamber, next door is provided with some horizontal air ports and is interconnected with cold wind discharge chamber.
Described cold wind is discharged the periphery in chamber and is provided with some opening supply cold wind discharges.
The present invention improvement by said structure, adopt the design of two hollow pipe mutual sheathing of different-diameter, it is responsible for a cold wind blast pipe supplementing the air of cooling and enters the internal reinforcement cooling of tubular film, it is responsible for a hot blast exhaust duct discharging the air absorbing heat, on die material, increase by a cold-hot wind commutation element simultaneously, this cold-hot wind commutation element is interconnected with hot blast exhaust duct and cold wind blast pipe respectively, to realize the cold air intake of interior pipe, outer tube hot type wind；Compared with prior art, can effectively stop the die material conduction of heat to cold inlet temperature, greatly increase the work efficiency of cooling air intake, through actual measurement, the cooling air outlet temperature of the cold air intake of interior pipe is less than 3 DEG C, and the film thickness produced is uniform, transparency is high, greatly improves tubular film and produce the product qualified rate of equipment；Simultaneously, cold wind blast pipe internal helicoid formula is provided with chilled water pipe, chilled water pipe adopts the pyrite of excellent thermal conductivity to make, and middle part has turned around snakelike spire, chilled water pipe is arranged on inside cold wind blast pipe by snakelike spire, and injection cools down water or chilled water in chilled water pipe, it is far longer than air owing to specific heat of water holds, therefore cooling effectiveness is greatly improved, cold wind blast pipe internal temperature can be reduced further on the one hand, thus improving cooling effectiveness, reach to improve the purpose of the optical property such as yield and thin film face transparency, the snakelike spire of chilled water pipe and the inwall of cold wind blast pipe abut on the other hand, can effectively reduce the heat affecting that cold wind blast pipe is produced by hot blast exhaust duct, further improve cooling effectiveness.It has simple and reasonable, excellent performance, and low cost of manufacture easily produces, and easily realizes, good cooling results, and production efficiency is high and production rear film thickness is uniform, transparency high, practical.
Accompanying drawing explanation
Fig. 1 is first embodiment of the invention structural representation.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
Referring to Fig. 1, this tubular film produces the interior chiller of equipment, including mould 1 be arranged on the cold wind blast pipe 2 within mould 1, hot blast exhaust duct 3, also includes cold-hot wind commutation element 4 and chilled water pipe 5；Wherein, it is internal that cold wind blast pipe 2 is set in hot blast exhaust duct 3, it is internal that hot blast exhaust duct 3 is arranged on mould 1, and cold-hot wind commutation element 4 is arranged on mould 1 and is interconnected with cold wind blast pipe 2 and hot blast exhaust duct 3 respectively, to realize the cold air intake of interior pipe, outer tube hot type wind；Described chilled water pipe 5 is spiral is arranged on cold wind blast pipe 2 inside.
Specifically, chilled water pipe 5 is made up of pyrite, its one end is provided with water inlet 5.1, middle part is provided with snakelike spire 5.2, the other end is provided with outlet 5.3, it is internal that chilled water pipe 5 is arranged on cold wind blast pipe 2 by snakelike spire 5.2, and chilled water flows through snakelike spire 5.2 from water inlet 5.1 entrance and finally flows out from outlet 5.3.
Saying further, the snakelike spire 5.2 of chilled water pipe 5 abuts with the inwall of cold wind blast pipe 2.
Saying further, snakelike spire 5.2 is spiral to be arranged on cold wind blast pipe 2 inside and coils the pipeline periphery in water inlet 5.1.
Saying further, cold-hot wind commutation element 4 is arranged on the top of mould 1 and it is internally provided with cold wind tube chamber 4.1 and hot blast tube chamber 4.2, and cold wind tube chamber 4.1 and cold wind blast pipe 2 are interconnected, and hot blast tube chamber 4.2 and hot blast exhaust duct 3 are interconnected.
Saying further, the top of cold-hot wind commutation element 4 is provided with commutation chamber 4.3, and the top in commutation chamber 4.3 is interconnected with hot blast exhaust duct 3, and bottom is interconnected with cold wind tube chamber 4.1 and hot blast tube chamber 4.2 respectively；It is internal that described cold wind tube chamber 4.1 is arranged on hot blast tube chamber 4.2, and the outside of hot blast tube chamber 4.2 is additionally provided with cold wind and discharges chamber 4.4.
Saying further, commutation is provided with next door on chamber 4.3, next door is provided with some vertical air ports 4.5 and is interconnected with hot blast tube chamber 4.2, next door is provided with some horizontal air ports 4.6 and is interconnected with cold wind discharge chamber 4.4.
Saying further, cold wind is discharged the periphery in chamber 4.4 and is provided with some opening 4.7 supply cold wind discharges.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.Skilled person will appreciate that the present invention is not restricted to the described embodiments; described in above-described embodiment and description is that principles of the invention is described; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements both fall within the claimed scope of the invention.Claimed scope is defined by appending claims and equivalent thereof.
Claims (8)
1. the interior chiller of a tubular film production equipment, including mould (1) be arranged on the internal cold wind blast pipe (2) of mould (1), hot blast exhaust duct (3), it is characterised in that: also include cold-hot wind commutation element (4) and chilled water pipe (5)；Wherein, it is internal that cold wind blast pipe (2) is set in hot blast exhaust duct (3), it is internal that hot blast exhaust duct (3) is arranged on mould (1), cold-hot wind commutation element (4) is arranged on mould (1) and above and is interconnected with cold wind blast pipe (2) and hot blast exhaust duct (3) respectively, to realize the cold air intake of interior pipe, outer tube hot type wind；Described chilled water pipe (5) is spiral is arranged on cold wind blast pipe (2) inside.
2. tubular film produces the interior chiller of equipment according to claim 1, it is characterized in that: described chilled water pipe (5) is made up of pyrite, its one end is provided with water inlet (5.1), middle part is provided with snakelike spire (5.2), the other end is provided with outlet (5.3), it is internal that chilled water pipe (5) is arranged on cold wind blast pipe (2) by snakelike spire (5.2), and chilled water enters from water inlet (5.1) and flows through snakelike spire (5.2) finally from outlet (5.3) outflow.
3. tubular film produces the interior chiller of equipment according to claim 2, it is characterised in that: the snakelike spire (5.2) of described chilled water pipe (5) and the inwall of cold wind blast pipe (2) abut.
4. tubular film produces the interior chiller of equipment according to claim 3, it is characterised in that: described snakelike spire (5.2) is spiral to be arranged on cold wind blast pipe (2) inside and coils the pipeline periphery in water inlet (5.1).
5. according to any one of claim 1-4, tubular film produces the interior chiller of equipment, it is characterized in that: described cold-hot wind commutation element (4) is arranged on the top of mould (1) and it is internally provided with cold wind tube chamber (4.1) and hot blast tube chamber (4.2), cold wind tube chamber (4.1) and cold wind blast pipe (2) are interconnected, and hot blast tube chamber (4.2) and hot blast exhaust duct (3) are interconnected.
6. tubular film produces the interior chiller of equipment according to claim 5, it is characterized in that: the top of described cold-hot wind commutation element (4) is provided with commutation chamber (4.3), the top of commutation chamber (4.3) and hot blast exhaust duct (3) are interconnected, and bottom is interconnected with cold wind tube chamber (4.1) and hot blast tube chamber (4.2) respectively；It is internal that described cold wind tube chamber (4.1) is arranged on hot blast tube chamber (4.2), and the outside of hot blast tube chamber (4.2) is additionally provided with cold wind and discharges chamber (4.4).
7. tubular film produces the interior chiller of equipment according to claim 6, it is characterized in that: described commutation chamber (4.3) is provided with next door, next door is provided with some vertical air ports (4.5) be interconnected with hot blast tube chamber (4.2), next door is provided with some horizontal air ports (4.6) and is interconnected with cold wind discharge chamber (4.4).
8. tubular film produces the interior chiller of equipment according to claim 7, it is characterised in that: described cold wind is discharged the periphery in chamber (4.4) and is provided with some opening (4.7) supply cold wind discharges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610236050.9A CN105729789B (en) | 2016-04-15 | 2016-04-15 | The interior cooling device of tubular film production equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610236050.9A CN105729789B (en) | 2016-04-15 | 2016-04-15 | The interior cooling device of tubular film production equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105729789A true CN105729789A (en) | 2016-07-06 |
| CN105729789B CN105729789B (en) | 2018-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610236050.9A Active CN105729789B (en) | 2016-04-15 | 2016-04-15 | The interior cooling device of tubular film production equipment |
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| Country | Link |
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| CN (1) | CN105729789B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2555848A1 (en) * | 1975-12-11 | 1977-06-23 | Windmoeller & Hoelscher | COOLING DEVICE FOR PLASTIC TUBE FILMS WITH AIR COOLING MADE WITH A FILM BLOW HEAD |
| JPS5534911A (en) * | 1978-09-02 | 1980-03-11 | Hikari Kagaku Kogyo Kk | Manufacturing method of thick-wall high-density polyethylene film |
| US4955802A (en) * | 1988-06-16 | 1990-09-11 | Reifenhauser Gmbh & Co. Maschinenfabrik | Blow-extruding a multilayer synthetic-resin tube |
| EP1346813A1 (en) * | 2002-03-19 | 2003-09-24 | Frank Lübke | Blown film die and method for extruding a tubular film |
| WO2015000643A1 (en) * | 2013-07-02 | 2015-01-08 | Windmöller & Hölscher Kg | Extrusion die for a film-blowing head and blowing head |
| CN205522466U (en) * | 2016-04-15 | 2016-08-31 | 佛山市顺德区捷勒塑料设备有限公司 | Interior cooling device of tubulose film production facility |
-
2016
- 2016-04-15 CN CN201610236050.9A patent/CN105729789B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2555848A1 (en) * | 1975-12-11 | 1977-06-23 | Windmoeller & Hoelscher | COOLING DEVICE FOR PLASTIC TUBE FILMS WITH AIR COOLING MADE WITH A FILM BLOW HEAD |
| JPS5534911A (en) * | 1978-09-02 | 1980-03-11 | Hikari Kagaku Kogyo Kk | Manufacturing method of thick-wall high-density polyethylene film |
| US4955802A (en) * | 1988-06-16 | 1990-09-11 | Reifenhauser Gmbh & Co. Maschinenfabrik | Blow-extruding a multilayer synthetic-resin tube |
| EP1346813A1 (en) * | 2002-03-19 | 2003-09-24 | Frank Lübke | Blown film die and method for extruding a tubular film |
| WO2015000643A1 (en) * | 2013-07-02 | 2015-01-08 | Windmöller & Hölscher Kg | Extrusion die for a film-blowing head and blowing head |
| CN205522466U (en) * | 2016-04-15 | 2016-08-31 | 佛山市顺德区捷勒塑料设备有限公司 | Interior cooling device of tubulose film production facility |
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| Publication number | Publication date |
|---|---|
| CN105729789B (en) | 2018-01-16 |
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Effective date of registration: 20210729 Granted publication date: 20180116 |