CN203331293U - Pipeline for conveying plastic melts - Google Patents
Pipeline for conveying plastic melts Download PDFInfo
- Publication number
- CN203331293U CN203331293U CN2013203760680U CN201320376068U CN203331293U CN 203331293 U CN203331293 U CN 203331293U CN 2013203760680 U CN2013203760680 U CN 2013203760680U CN 201320376068 U CN201320376068 U CN 201320376068U CN 203331293 U CN203331293 U CN 203331293U
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- China
- Prior art keywords
- heat
- pipe
- melt
- conducting oil
- oil
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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.)
- Withdrawn - After Issue
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Abstract
The utility model relates to a pipeline for conveying plastic melts, which comprises a melt pipe and a heat-conducting oil pipe, wherein plastic melts pass through the melt pipe, the heat-conducting oil pipe is sleeved on the outside of the melt pipe, the two ends of the melt pipe are respectively provided with a connecting flange, the melt pipe and the heat-conducting oil pipe form a jacket for enabling heat-conducting oil to pass through, the two ends of the heat-conducting oil pipe are provided with an oil inlet and an oil outlet which are communicated with an inner cavity of the jacket, and the heat-conducting oil pipe is also provided with an air exhausting device communicated with the inner cavity of the jacket; a spiral guide vane is arranged in the inner cavity of the jacket, so that a spiral runner is formed in the inner cavity of the jacket, and the oil inlet and the oil outlet are respectively communicated with the two ends of the spiral runner. The spiral runner can ensure that heat-conducting oil flows uniformly in the jacket, and the temperature of melts in the melt pipe is stable, so that the stability of production can be ensured, therefore, the product cost can be reduced, and the quality of plastic films can be improved.
Description
Technical field
The utility model relates to a kind of for carrying the pipeline of plastic melt on the bidirectional stretching plastic film production line.
Background technology
Carry the pipeline of plastic melt extremely important for the bidirectional stretching plastic film production line, the ultra-thin plastic sheeting below 5 microns particularly, the plastic melt temperature fluctuation need to be controlled at ± below 0.5 degree, otherwise causes the production line film that breaks.In the melt pipeline, the mode of heating of plastic melt has two kinds at present, and a kind of employing electrical heating, be close to the melt pipe outer wall by ceramic heater and heated, this mode of heating, and temperature fluctuation is large, and heater is fragile.Another kind is heated by conduction oil, at drum type brake heat-conducting oil pipes of melt pipeline outer cover, circular passage between heat-conducting oil pipes and melt pipe forms chuck, conduction oil flows in chuck, because the drum type brake chuck easily forms dead band, conduction oil, in the internal flow inequality, causes melt temperature skewness in the melt pipeline, easily cause the production line film that breaks, make production cost increase.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, and a kind of pipeline of carrying plastic melt is provided, and conduction oil flows evenly in chuck, and in melt pipe, melt temperature is stable, can not only reduce product cost, can also improve the plastic sheeting quality.
For the foregoing invention purpose, the technical solution adopted in the utility model is: comprise the melt pipe passed through for plastic melt and be enclosed within the outer heat-conducting oil pipes of melt pipe, the melt pipe two ends are provided with adpting flange, melt pipe and heat-conducting oil pipes form the chuck passed through for conduction oil, the heat-conducting oil pipes two ends be provided with the chuck inner chamber, communicate into and out of hydraulic fluid port, also be provided with the exhaust apparatus communicated with the chuck inner chamber on heat-conducting oil pipes, be provided with the helical form guide vane in the chuck inner chamber, make in the chuck inner chamber and form spiral flow channel, communicate with the spiral flow channel two ends respectively into and out of hydraulic fluid port.
Further, outside, heat-conducting oil pipes two ends is respectively equipped with the sleeve pipe for conduction oil turnover spiral flow channel, sleeve pipe outer end and melt pipe end adpting flange are tightly connected, sleeve pipe is inner to be tightly connected with heat-conducting oil pipes, into and out of hydraulic fluid port, be located at respectively on two sleeve pipes, exhaust apparatus is located on the sleeve pipe of oil-in end.
Preferential, adpting flange inboard, melt pipe two ends is provided with the annular oil groove communicated with the chuck inner chamber.Conduction oil in annular oil groove can in conjunction with the heating of flange small power electric, can guarantee that the melt temperature in adpting flange is stable to the heating of adpting flange inwall, and fluctuation range is little.
The beneficial effects of the utility model are: by spiral flow channel is set in chuck, make conduction oil flow in chuck evenly, be provided with annular oil groove in the adpting flange of two ends simultaneously, in melt pipe and two ends adpting flange, melt temperature is stable, can guarantee to produce stable, product cost can not only be reduced, the plastic sheeting quality can also be improved.
The accompanying drawing explanation
Fig. 1 is the utility model structural representation.
The specific embodiment
As shown in Figure 1, the utility model comprises the melt pipe 2 passed through for plastic melt and is enclosed within the outer heat-conducting oil pipes 1 of melt pipe, melt pipe 2 two ends are provided with adpting flange 4,5, melt pipe 2 forms with heat-conducting oil pipes 1 chuck passed through for conduction oil, be provided with helical form guide vane 3 in the chuck inner chamber, make in the chuck inner chamber and form spiral flow channel 11.
Heat-conducting oil pipes 1 outside, two ends is respectively equipped with the sleeve pipe 6,7 for conduction oil turnover spiral flow channel 11, sleeve pipe 6,7 outer ends are connected by welded seal with melt pipe 2 end adpting flanges 5,4, sleeve pipe 6,7 is inner to be tightly connected with heat-conducting oil pipes 1, be located at respectively on two sleeve pipes 6,7 into and out of hydraulic fluid port 61,71, exhaust apparatus 64 is connected on the sleeve pipe 6 of oil-in 61 ends by pipeline 63.
During oiling for the first time, the gas of discharging in flat chuck by the device 64 in blast pipe 63 and exhaust, to prevent the hotair explosion in chuck.
Operation principle is as follows: plastic melt enters in melt pipe 2 through entrance point adpting flange 4 along the solid arrow direction, by other end adpting flange 5, enters next procedure.Conduction oil and melt flows opposite direction, high temperature oil pump by conduction oil along the dotted arrow direction through oil-in 61, and sleeve pipe 6 and heat-conducting oil pipes 1 between circular passage 62, gap 12 between heat-conducting oil pipes 1 end and adpting flange 5 enters in the chuck inner chamber, along spiral flow channel 11 to the melt inlet extreme direction, flow, through the gap 13 between heat-conducting oil pipes 1 the other end and adpting flange 5, and sleeve pipe 7 and heat-conducting oil pipes 1 between circular passage 72, by oil-out 71 discharges.This spiral flow shape road 11 can guarantee that the high temperature heat conductive oil flow velocity is even, thereby the plastic melt in melt pipe 2 is heated evenly.
Conduction oil injects the annular oil groove 41,51 of melt pipe 2 two ends adpting flange 4,5 inboards simultaneously.Conduction oil easily forms dead band on annular oil groove 41,51 is interior, and temperature is lower slightly, in order to prevent the plastic melt temperature, fluctuation occurs, electric heating cover (not shown in FIG.) is installed on the cylindrical of two adpting flanges 4,5 and carrys out heat compensation.
Claims (3)
1. carry the pipeline of plastic melt, comprise the melt pipe (2) passed through for plastic melt and be enclosed within the outer heat-conducting oil pipes (1) of melt pipe, melt pipe (2) two ends are provided with adpting flange (4, 5), melt pipe (2) forms with heat-conducting oil pipes (1) chuck passed through for conduction oil, heat-conducting oil pipes (1) two ends are provided with and advancing that the chuck inner chamber communicates, oil-out (61, 71), also be provided with the exhaust apparatus (64) communicated with the chuck inner chamber on heat-conducting oil pipes (1), it is characterized in that: be provided with helical form guide vane (3) in the chuck inner chamber, make in the chuck inner chamber and form spiral flow channel (11), advance, oil-out (61, 71) with spiral flow channel (11) two ends, communicate respectively.
2. the pipeline of conveying plastic melt according to claim 1, it is characterized in that: heat-conducting oil pipes (1) outside, two ends is respectively equipped with the sleeve pipe (6,7) for conduction oil turnover spiral flow channel (11), sleeve pipe (6,7) outer end and melt pipe end adpting flange (5,4) are tightly connected, sleeve pipe (6,7) is inner to be tightly connected with heat-conducting oil pipes (1), be located at respectively two sleeve pipes (6,7) into and out of hydraulic fluid port (61,71) upper, exhaust apparatus (64) is located on the sleeve pipe (6) of oil-in (61) end.
3. the pipeline of conveying plastic melt according to claim 2, it is characterized in that: melt pipe (2) two ends adpting flanges (4,5) inboard is provided with the annular oil groove (41,51) communicated with the chuck inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203760680U CN203331293U (en) | 2013-06-27 | 2013-06-27 | Pipeline for conveying plastic melts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203760680U CN203331293U (en) | 2013-06-27 | 2013-06-27 | Pipeline for conveying plastic melts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203331293U true CN203331293U (en) | 2013-12-11 |
Family
ID=49699990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203760680U Withdrawn - After Issue CN203331293U (en) | 2013-06-27 | 2013-06-27 | Pipeline for conveying plastic melts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203331293U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302767A (en) * | 2013-06-27 | 2013-09-18 | 安徽铜爱电子材料有限公司 | Pipeline for conveying plastic melt |
-
2013
- 2013-06-27 CN CN2013203760680U patent/CN203331293U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302767A (en) * | 2013-06-27 | 2013-09-18 | 安徽铜爱电子材料有限公司 | Pipeline for conveying plastic melt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131211 Effective date of abandoning: 20150715 |
|
| RGAV | Abandon patent right to avoid regrant |