CN103302767A - Pipeline for conveying plastic melt - Google Patents
Pipeline for conveying plastic melt Download PDFInfo
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- CN103302767A CN103302767A CN2013102609984A CN201310260998A CN103302767A CN 103302767 A CN103302767 A CN 103302767A CN 2013102609984 A CN2013102609984 A CN 2013102609984A CN 201310260998 A CN201310260998 A CN 201310260998A CN 103302767 A CN103302767 A CN 103302767A
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- melt
- pipe
- conducting oil
- oil
- heat
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Abstract
The invention relates to a pipeline for conveying a plastic melt. The pipeline comprises a melt pipe for a plastic melt to pass through and a heat conducting oil pipe sheathed outside the melt pipe, wherein both ends of the melt pipe are provided with connecting flanges; the melt pipe and the heat conducting oil pipe form a jacket for heat conducting oil to pass through; both ends of the heat conducting oil pipe are provided with an oil inlet and an oil outlet which are communicated with the inner cavity of the jacket; the heat conducting oil pipe is further provided with an air exhausting device communicated with the inner cavity of the jacket; the inner cavity of the jacket is internally provided with spiral guide vanes, so that a spiral flow passage is formed in the inner cavity of the jacket; and the oil inlet and the oil outlet are respectively communicated with both ends of the spiral flow passage. The spiral flow passage can ensure that the heat conducting oil flows in the jacket uniformly, the melt temperature inside the melt pipe is stable, production stability can be ensured, product cost can be reduced, and the plastic film quality further can be improved.
Description
Technical field
The present invention relates to a kind of pipeline for carrying 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.The mode of heating of plastic melt has two kinds in the melt pipeline at present, and a kind of employing electrical heating is close to the melt pipe outer wall by ceramic heater and is heated, this mode of heating, and temperature fluctuation is large, and heater is fragile.Another kind heats by conduction oil, at drum type brake heat-conducting oil pipes of melt pipeline outer cover, circular passage between heat-conducting oil pipes and the melt pipe forms chuck, conduction oil flows in chuck, because the drum type brake chuck easily forms the dead band, conduction oil is uneven in internal flow, causes melt temperature skewness in the melt pipeline, easily cause the production line film that breaks, so that production cost increases.
Summary of the invention
The objective of the invention is for the deficiencies in the prior art, a kind of pipeline of carrying plastic melt is provided, conduction oil flows in chuck evenly, and melt temperature is stable in the melt pipe, can not only reduce product cost, can also improve the plastic sheeting quality.
For the foregoing invention purpose, the technical solution used in the present invention is: comprise the melt pipe that passes 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 that passes through for conduction oil, the heat-conducting oil pipes two ends be provided with communicate with the chuck inner chamber into and out of hydraulic fluid port, also be provided with the exhaust apparatus that communicates with the chuck inner chamber on the heat-conducting oil pipes, be provided with the helical form guide vane in the chuck inner chamber, so that form spiral flow channel in the chuck inner chamber, 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, be located at respectively on two sleeve pipes into and out of hydraulic fluid port, 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 that communicates with the chuck inner chamber.Conduction oil in the annular oil groove can in conjunction with the heating of flange small power electric, can guarantee that the melt temperature in the adpting flange is stable to the heating of adpting flange inwall, and fluctuation range is little.
Beneficial effect of the present invention is: by spiral flow channel is set in chuck, so that conduction oil flows in chuck evenly, be provided with annular oil groove in the adpting flange of two ends simultaneously, melt temperature is stable in melt pipe and the two ends adpting flange, can guarantee to produce stable, product cost can not only be reduced, the plastic sheeting quality can also be improved.
Description of drawings
Fig. 1 is structural representation of the present invention.
The specific embodiment
As shown in Figure 1, the present invention includes the melt pipe 2 that passes 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 the chuck that passes through for conduction oil with heat-conducting oil pipes 1, be provided with helical form guide vane 3 in the chuck inner chamber, so that form spiral flow channel 11 in the chuck inner chamber.
Outside, heat-conducting oil pipes 1 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 the inners are 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 for the first time oiling, by the gas in the flat chuck of device 64 discharges in blast pipe 63 and the exhaust, to prevent the hotair explosion in the chuck.
Operation principle is as follows: plastic melt enters in the melt pipe 2 through entrance point adpting flange 4 along the solid arrow direction, enters next procedure by other end adpting flange 5.Conduction oil and melt flows opposite direction, high temperature oil pump with 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, entered in the chuck inner chamber by the gap 12 between heat-conducting oil pipes 1 end and the adpting flange 5, flow along spiral flow channel 11 to the melt inlet extreme direction, through the gap 13 between heat-conducting oil pipes 1 the other end and the 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 the melt pipe 2 is heated evenly.
Conduction oil injects the annular oil groove 41,51 of melt pipe 2 two ends adpting flanges 4,5 inboards simultaneously.Conduction oil easily forms the dead band at annular oil groove 41,51 on interior, and temperature is lower slightly, fluctuation occurs in order to prevent the plastic melt temperature, at two adpting flanges 4,5 cylindrical electric heating cover (not shown in FIG.) is installed and comes heat compensation.
Claims (3)
1. carry the pipeline of plastic melt, comprise the melt pipe (2) that passes 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 the chuck that passes through for conduction oil with heat-conducting oil pipes (1), 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) that communicates with the chuck inner chamber on the heat-conducting oil pipes (1), it is characterized in that: be provided with helical form guide vane (3) in the chuck inner chamber, so that form spiral flow channel (11) in the chuck inner chamber, advance, oil-out (61,71) communicate with spiral flow channel (11) two ends 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 on two sleeve pipes (6,7) into and out of hydraulic fluid port (61,71), 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) that communicates with the chuck inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310260998.4A CN103302767B (en) | 2013-06-27 | 2013-06-27 | Pipeline for conveying plastic melt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310260998.4A CN103302767B (en) | 2013-06-27 | 2013-06-27 | Pipeline for conveying plastic melt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103302767A true CN103302767A (en) | 2013-09-18 |
| CN103302767B CN103302767B (en) | 2015-07-15 |
Family
ID=49128698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310260998.4A Expired - Fee Related CN103302767B (en) | 2013-06-27 | 2013-06-27 | Pipeline for conveying plastic melt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103302767B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108859184A (en) * | 2018-07-10 | 2018-11-23 | 无锡流水鱼智能科技有限公司 | A kind of moulding process and process units of recycle stream water fish cultivation flume |
| CN109878057A (en) * | 2019-03-05 | 2019-06-14 | 桂林电器科学研究院有限公司 | A kind of melt pipe heating device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6019934A (en) * | 1996-02-06 | 2000-02-01 | Hoechst Aktiengesellschaft | Hollow extrusion using internal coolant |
| CN201838338U (en) * | 2010-09-06 | 2011-05-18 | 江苏维达机械有限公司 | Cooling roller |
| CN102189742A (en) * | 2011-03-30 | 2011-09-21 | 泰州科世茂京都机械有限公司 | Spiral jacket oil hot roller |
| CN203331293U (en) * | 2013-06-27 | 2013-12-11 | 安徽铜爱电子材料有限公司 | Pipeline for conveying plastic melts |
-
2013
- 2013-06-27 CN CN201310260998.4A patent/CN103302767B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6019934A (en) * | 1996-02-06 | 2000-02-01 | Hoechst Aktiengesellschaft | Hollow extrusion using internal coolant |
| CN201838338U (en) * | 2010-09-06 | 2011-05-18 | 江苏维达机械有限公司 | Cooling roller |
| CN102189742A (en) * | 2011-03-30 | 2011-09-21 | 泰州科世茂京都机械有限公司 | Spiral jacket oil hot roller |
| CN203331293U (en) * | 2013-06-27 | 2013-12-11 | 安徽铜爱电子材料有限公司 | Pipeline for conveying plastic melts |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108859184A (en) * | 2018-07-10 | 2018-11-23 | 无锡流水鱼智能科技有限公司 | A kind of moulding process and process units of recycle stream water fish cultivation flume |
| CN109878057A (en) * | 2019-03-05 | 2019-06-14 | 桂林电器科学研究院有限公司 | A kind of melt pipe heating device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103302767B (en) | 2015-07-15 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20160627 |