CN115821402A - Cooling device for melt direct spinning finished product - Google Patents
Cooling device for melt direct spinning finished product Download PDFInfo
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- CN115821402A CN115821402A CN202210931361.2A CN202210931361A CN115821402A CN 115821402 A CN115821402 A CN 115821402A CN 202210931361 A CN202210931361 A CN 202210931361A CN 115821402 A CN115821402 A CN 115821402A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
Abstract
The invention provides a cooling device for a melt direct spinning finished product, wherein an annular cavity is arranged in the side wall of a cylindrical cooling cylinder; a spiral cooling pipeline is wound on the side wall, close to the central channel, in the annular cavity, the lower end of the spiral cooling pipeline is connected with a cooling liquid box arranged outside the cylindrical cooling cylinder through a liquid inlet pipe, and the upper end of the spiral cooling pipeline is connected with the cooling liquid box through a liquid return pipe; an upper air deflector and a lower air deflector which are symmetrical up and down and are horn-shaped are respectively arranged in the annular cavity; the middle cooling chamber is internally provided with a blower and a first air direction adjusting plate, and the first air guide hole and the first air inlet hole are arranged in a staggered manner; the air outlet pipeline of the exhaust fan in the lower cooling chamber extends into the upper cooling chamber. The invention effectively avoids the phenomenon of quenching the tows, ensures that the fibers are uniformly distributed in the radial direction, and improves the quality of the finished fiber product; the phenomenon of tow doubling is effectively avoided, and the production efficiency is improved; the full utilization of cold air is realized, the resources are reasonably utilized, and the industrial production concept of energy conservation and high efficiency is met.
Description
Technical Field
The invention relates to the technical field of textile machinery equipment, in particular to a cooling device for a melt direct spinning finished product.
Background
Melt direct spinning is one type of melt spinning. Melt spinning is one of the main forming methods for chemical fibers, called melt spinning for short. The main varieties of synthetic fibers, such as terylene, chinlon, polypropylene, and the like, are produced by melt spinning. The melt spinning has the main characteristics of high winding speed, no need of solvent and precipitant, simple equipment and short process flow. Fiber-forming polymers that have a melting point below the decomposition temperature and are meltable to form a thermally stable melt can be formed by this method. Melt spinning comprises the steps of: (1) preparing a spinning melt (melt from fiber-forming polymer chips or from a continuous polymerization); (2) extruding the melt through a spinneret orifice to form melt trickle; (3) cooling and solidifying the melt trickle to form nascent fiber; (4) oiling and winding the nascent fiber. Melt spinning is divided into direct spinning and chip spinning. The direct spinning is that the polymer melt after polymerization is directly sent to spinning; the chip spinning needs to make the high polymer solution go through the preparation process before spinning such as tape injection and grain cutting, and then send to spinning. The melt stream cooling solidification generally cools the filaments in the form of an annular wind. Because the cooling air is uniformly blown to the tows from the inner side or the outer side of the tows in the circumferential direction (belonging to uniform cooling), the cooling air is divided into inner circular blowing (central circular blowing) and outer circular blowing. The blowing surface is close to the strand silk, thereby greatly improving the energy efficiency. The temperature of cooling air is low, the cooling conditions of all the wires are similar, in addition, the air supply area is small, the air speed is also lower than that of side blowing, and the energy is saved by more than 70 percent compared with the side blowing on the whole.
At present, the flowing state and the temperature of cooling air flow have a great influence on the filament strip in the distance from the jet plate of the spinning box to the solidified filament strip, and the existing cooling device has the following two defects: firstly, the high-temperature spun yarn bundle just sprayed from a spinneret plate is subjected to a quenching phenomenon immediately when encountering cold air, the outer layer of the fiber is rapidly solidified, but the inner core of the fiber is still in a melt state, so that the fiber is stiff and hard, and the radial distribution of the fiber is easily uneven in the subsequent drawing process, so that the quality of a fiber finished product is influenced; secondly, the larger air flow directly blows the spinning beam, which easily causes the phenomenon of tow doubling, production waste and low production efficiency. Secondly, the existing circular blowing cooling device also has the problems of energy loss and unreasonable resource utilization, and breaks the idea of energy-saving and efficient industrial production in modern society.
In view of the foregoing, there is a need to design a cooling device for direct melt spinning products that overcomes the above-mentioned problems.
Disclosure of Invention
The object of the present invention is to provide a cooling device for melt direct spinning products that overcomes the above-mentioned problems.
In order to achieve the purpose, the invention adopts the technical scheme that: a cooling device for a melt direct spinning product, comprising:
the upper end of the cylindrical cooling cylinder is connected with a spinneret plate, and spinning sprayed by the spinneret plate is downwards wound on a winding mechanism through a central channel of the cylindrical cooling cylinder;
an annular cavity is arranged in the side wall of the cylindrical cooling cylinder;
a spiral cooling pipeline is wound on the side wall, close to the central channel, in the annular cavity, the lower end of the spiral cooling pipeline is connected with a cooling liquid tank arranged on the outer side of the cylindrical cooling cylinder through a liquid inlet pipe, and the upper end of the spiral cooling pipeline is connected with the cooling liquid tank through a liquid return pipe;
the annular cavity is internally provided with an upper air deflector and a lower air deflector which are vertically symmetrical and horn-shaped, the upper air deflector is small in upper part and large in lower part, the lower air deflector is large in upper part and small in lower part, small opening ends and large opening ends of the upper air deflector and the lower air deflector are respectively fixedly connected with the inner side wall and the outer side wall of the annular cavity, the annular cavity is divided into an upper cooling chamber, an intermediate cooling chamber and a lower cooling chamber by the upper air deflector and the lower air deflector, and the spiral cooling pipeline penetrates through the lower air deflector and the upper air deflector and extends to the inner wall of each cooling chamber;
the left outer side wall and the right outer side wall of the middle cooling chamber are respectively provided with a blower, the inner wall of the middle cooling chamber is provided with a plurality of first air inlet holes communicated with the central channel, a first air direction adjusting plate is arranged in the middle cooling chamber between the first air inlet holes and the blowers, the first air direction adjusting plate is provided with a plurality of first air guide holes, and the first air guide holes and the first air inlet holes are arranged in a staggered manner;
the left outer wall and the right outer wall of the lower cooling chamber are respectively provided with an exhaust fan, the inner wall of the lower cooling chamber is provided with an exhaust hole communicated with the central channel, an air outlet pipeline of the exhaust fan extends to the inside of the upper cooling chamber, and the inner wall of the upper cooling chamber is provided with a second air inlet hole communicated with the central channel.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
Furthermore, the first wind direction adjusting plates are arc-shaped, and the two first wind direction adjusting plates are in butt joint or integrally connected to form a cylinder shape.
Furthermore, one side of the first air direction adjusting plate, which is close to the blower, is provided with an arc-shaped first dust removing filter screen, and the two first dust removing filter screens are in butt joint or are integrally connected to form a cylinder shape.
Furthermore, the air suction hole and the air suction fan are arranged between the lower cooling chamber, an arc-shaped second dust removal filter screen is arranged in the lower cooling chamber, and the two second dust removal filter screens are in butt joint or are integrally connected to form a cylinder shape.
Furthermore, a horn-shaped air guide cover is arranged at the port of the air outlet pipeline in the upper cooling chamber, a second air direction adjusting plate is arranged between the horn-shaped air guide cover and the second air inlet hole, a plurality of second air guide holes are formed in the second air direction adjusting plate, and the positions of the second air guide holes and the positions of the second air inlet holes are staggered.
Furthermore, the second wind direction adjusting plates are arc-shaped, and the two second wind direction adjusting plates are in butt joint or integrally connected to form a cylinder shape.
Further, the inner wall of the lower end of the central channel is provided with a temperature sensor, the temperature sensor is connected with a controller, and the controller controls the opening and closing of the exhaust fan through temperature information monitored by the temperature sensor.
Furthermore, the cooling liquid tank comprises an upper chamber and a lower chamber, and the liquid inlet pipe and the liquid return pipe are respectively connected with the upper chamber and the lower chamber;
and a refrigerator is arranged on one side of the lower cavity, the liquid return pipe is connected with the liquid inlet end of the refrigerator, a liquid pump is further arranged on the other side of the lower cavity, and the liquid outlet end of the liquid pump is communicated with the upper cavity. Compared with the prior art, the invention has the beneficial effects that:
1. the cooling device for the melt direct spinning finished product is characterized in that the spiral cooling pipeline is wound on the inner wall of the annular cavity, the cooling liquid flows into the spiral cooling pipeline from bottom to top, and the cooling liquid can take away heat released by a part of spinning tows, so that the temperature of the cooling liquid is gradually increased from bottom to top and gradually increased from bottom to top, the temperature difference between the upper part and the lower part of the spinning tows is more balanced, the phenomenon that the high-temperature spinning tows just sprayed from a spinneret plate are rapidly quenched when encountering cold air is effectively avoided, the radial distribution of fibers is prevented from being uneven in the subsequent drawing process, and the quality of the fiber finished product is improved.
2. According to the cooling device for the melt direct spinning finished product, the upper air deflector and the lower air deflector which are horn-shaped are arranged in the annular cavity, cold air released by the spiral cooling pipeline can be blown into the central channel through the air blower, so that the cooling effect on spun yarn bundles is improved, the energy loss of the spiral cooling pipeline can be reduced, the upper air deflector and the lower air deflector can blow the cold air released by the spiral cooling pipeline into the central channel as much as possible, the cold air loss is reduced, and the cooling efficiency is improved.
3. According to the cooling device for the melt direct spinning finished product, the first air direction adjusting plate is arranged, the first air guide holes are formed in the first air direction adjusting plate, and the first air guide holes and the first air inlet holes are arranged in a staggered mode, so that cold air can be prevented from being vertically blown into the central channel by a blower, the phenomenon of tow doubling is effectively avoided, production waste is reduced, and production efficiency is improved.
4. The cooling device for the melt direct spinning finished product is characterized in that the lower cooling chamber is internally provided with the exhaust fan, the spinning beam at the lowermost end of the common central channel is to be solidified, the temperature of the spinning beam is lower, the required cold air is less, and the cold air generally sinks, so that the exhaust fan extracts the gas in the central channel to enable the gas to enter the upper cooling chamber, the spinning beam just sprayed out from the spinneret orifice can still be cooled, the cold air is fully utilized, the resource is reasonably utilized, and the cooling device conforms to the industrial production concept of energy conservation and high efficiency.
Drawings
FIG. 1 is a schematic cross-sectional view of a cooling device for direct melt spinning products according to the present invention;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
FIG. 3 is an enlarged schematic view at B of FIG. 1;
description of reference numerals:
1. a cylindrical cooling cylinder; 11. a central channel; 12. an annular cavity; 121. an upper cooling chamber; 122. a middle cooling chamber; 123. a lower cooling chamber; 13. a first air inlet hole; 14. a suction hole; 15. a second air inlet hole;
2. a spinneret plate;
3. a helical cooling conduit; 31. a liquid inlet pipe; 32. a coolant tank; 321. an upper chamber; 322. a lower chamber; 33. a liquid return pipe;
4. an upper air deflector;
5. a lower air deflector;
6. a blower; 61. a first wind direction adjusting plate; 62. a first air guiding hole; 63. a first dust removal filter screen;
7. an exhaust fan; 71. an air outlet pipeline; 72. a second dust removal filter screen; 73. a horn-shaped wind scooper; 74. a second wind direction adjusting plate; 75. a second air guiding hole;
8. a temperature sensor;
9. a refrigerator;
10. and (4) a liquid pump.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 3, a cooling device for a melt direct spinning product includes a cylindrical cooling cylinder 1, an upper end of the cylindrical cooling cylinder 1 is connected to a spinneret 2, and a spun yarn ejected from the spinneret 2 is wound on a winding mechanism through a central passage 11 of the cylindrical cooling cylinder 1;
an annular cavity 12 is arranged in the side wall of the cylindrical cooling cylinder 1;
a spiral cooling pipeline 3 is wound on the side wall of the annular cavity 12 close to the central channel 11, the lower end of the spiral cooling pipeline 3 is connected with a cooling liquid tank 32 arranged outside the cylindrical cooling cylinder 1 through a liquid inlet pipe 31, and the upper end of the spiral cooling pipeline 3 is connected with the cooling liquid tank 32 through a liquid return pipe 33; specifically, the cooling liquid flows into the spiral cooling pipeline 3 from bottom to top, and because the cooling liquid can take away part of heat released by the spinning beams, the temperature of the cooling liquid is gradually increased from bottom to top and gradually increased from bottom to top, so that the temperature difference between the upper part and the lower part of the spinning beams is more balanced, and the phenomenon that the high-temperature spinning beams just sprayed from a spinneret plate are quenched immediately when encountering cold air is effectively avoided;
an upper air deflector 4 and a lower air deflector 5 which are vertically symmetrical and horn-shaped are respectively arranged in the annular cavity 12, the upper air deflector 4 is small in top and large in bottom, the lower air deflector 5 is large in top and small in bottom, small opening ends and large opening ends of the upper air deflector 4 and the lower air deflector 5 are respectively fixedly connected with the inner side wall and the outer side wall of the annular cavity 12, the annular cavity 12 is divided into an upper cooling chamber 121, an intermediate cooling chamber 122 and a lower cooling chamber 123 by the upper air deflector 4 and the lower air deflector 5, and the spiral cooling pipeline 3 penetrates through the lower air deflector 5 and the upper air deflector 4 and extends to the inner wall of each cooling chamber; wherein the spiral cooling pipe 3 in the middle cooling chamber 122 covers the most;
the left outer side wall and the right outer side wall of the middle cooling chamber 122 are respectively provided with a blower 6, the inner wall of the middle cooling chamber 122 is provided with a plurality of first air inlet holes 13 communicated with the central channel 11, a first air direction adjusting plate 61 is arranged in the middle cooling chamber 122 between the first air inlet holes 13 and the blower 6, the first air direction adjusting plate 61 is provided with a plurality of first air guide holes 62, and the positions of the first air guide holes 62 and the first air inlet holes 13 are staggered;
specifically, the cold air released by the spiral cooling pipeline 3 can be blown into the central channel 11 through the blower 6, so that the cooling effect on the spun yarn bundle is improved, the energy loss of the spiral cooling pipeline 3 can be reduced, the upper air deflector and the lower air deflector can blow the cold air released by the spiral cooling pipeline 3 into the central channel 11 as much as possible, and the cold air loss is reduced; the first air direction adjusting plate 61 is provided with a plurality of first air guide holes 62, and the first air guide holes 62 and the first air inlet holes 13 are arranged in a staggered manner, so that cold air can be prevented from being vertically blown into the central channel 11 by the blower 6, and the phenomenon of doubling tows is effectively avoided;
the left outer wall and the right outer wall of the lower cooling chamber 123 are respectively provided with an exhaust fan 7, the inner wall of the lower cooling chamber 123 is provided with an air exhaust hole 14 communicated with the central channel 11, an air outlet pipeline 71 of the exhaust fan 7 extends to the inside of the upper cooling chamber 121, and the inner wall of the upper cooling chamber 121 is provided with a second air inlet hole 15 communicated with the central channel 11.
Specifically, because the spinning beam at the lowest end of the central channel 11 is about to solidify, the temperature is low, the required cold air is less, and the cold air generally sinks, therefore, the air in the central channel 11 is extracted by the exhaust fan 7 to enter the upper cooling chamber 121, and the spinning beam just sprayed out from the spinneret hole can still be cooled, so that the cold air is fully utilized, resources are reasonably utilized, and the resource waste is avoided.
Preferably, the first wind direction adjusting plate 61 is arc-shaped, and two first wind direction adjusting plates 61 are butted or integrally connected to form a cylinder shape.
Preferably, an arc-shaped first dust removing filter screen 63 is arranged on one side of the first wind direction adjusting plate 61 close to the blower 6, and the two first dust removing filter screens 63 are butted or integrally connected to form a cylinder shape. The first dust removal filter screen 63 can filter the outside air entering the blower 6, so that dust or large particles are prevented from entering the central channel 11, and the quality of the spun yarn bundle is ensured; meanwhile, the first air guide holes 62 and the first air inlet holes 13 can be prevented from being blocked by dust in the long-term use process.
Preferably, an arc-shaped second dust-removing filter screen 72 is arranged in the lower cooling chamber 123 between the air suction hole 14 and the air suction fan 7, and the two second dust-removing filter screens 72 are butted or integrally connected to form a cylinder. The second dust-removing filter screen 72 can filter the gas entering the central channel 11 of the air-extracting hole 14, so as to prevent the spinning fiber or the flying cotton from entering the air-extracting hole 14, the air-out pipeline 71 and the upper cooling cavity 121 and avoid the blocking phenomenon.
Preferably, a flared air guiding hood 73 is arranged at a port of the air outlet duct 71 in the upper cooling chamber 121, a second air direction adjusting plate 74 is arranged between the flared air guiding hood 73 and the second air inlet hole 15, the second air direction adjusting plate 74 is provided with a plurality of second air guiding holes 75, and the second air guiding holes 75 and the second air inlet hole 15 are arranged in a staggered manner. The air outlet pipeline 71 can be prevented from blowing cold air into the central channel 11 vertically, and the phenomenon of doubling of tows is avoided.
Preferably, the second wind direction adjusting plate 74 is arc-shaped, and two second wind direction adjusting plates 74 are butted or integrally connected to form a cylinder shape.
In another embodiment of the present invention, a temperature sensor 8 is disposed on an inner wall of a lower end of the central channel 11, the temperature sensor 8 is connected to a controller, and the controller controls opening and closing of the exhaust fan 7 according to temperature information monitored by the temperature sensor 8. When the temperature of the lower end of the central channel 11 monitored by the temperature sensor 8 is lower than the preset temperature of the controller, for example, below 22 ℃, the controller controls the exhaust fan 7 to be started, and the cold air at the lower end is pumped back to be recycled, otherwise, when the temperature is higher than the preset temperature value, the controller controls the exhaust fan 7 to be closed.
Preferably, the cooling liquid tank 32 comprises an upper chamber 321 and a lower chamber 322, and the liquid inlet pipe 31 and the liquid return pipe 33 are respectively connected with the upper chamber 321 and the lower chamber 322;
a refrigerator 9 is arranged on one side of the lower cavity 322, the liquid return pipe 33 is connected with the liquid inlet end of the refrigerator 9, a liquid pump 10 is arranged on the other side of the lower cavity 322, and the liquid outlet end of the liquid pump 10 is communicated with the upper cavity 321. The cooling liquid in the cooling liquid tank 32 is preferably water, and the refrigerator 9 can cool down the used cooling water to reduce the temperature thereof, so as to be pumped into the upper chamber 321 by the liquid pump 10 for recycling.
The present invention is further described with reference to the examples, but the present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (8)
1. A cooling device for melt direct spinning finished products, which comprises a cylindrical cooling cylinder (1), wherein the upper end of the cylindrical cooling cylinder (1) is connected with a spinneret plate (2), and spinning sprayed by the spinneret plate (2) is downwards wound on a winding mechanism through a central channel (11) of the cylindrical cooling cylinder (1), and is characterized in that:
an annular cavity (12) is arranged in the side wall of the cylindrical cooling cylinder (1);
a spiral cooling pipeline (3) is wound on the side wall, close to the central channel (11), in the annular cavity (12), the lower end of the spiral cooling pipeline (3) is connected with a cooling liquid tank (32) arranged on the outer side of the cylindrical cooling cylinder (1) through a liquid inlet pipe (31), and the upper end of the spiral cooling pipeline (3) is connected with the cooling liquid tank (32) through a liquid return pipe (33);
an upper air deflector (4) and a lower air deflector (5) which are symmetrical up and down and are horn-shaped are respectively arranged in the annular cavity (12), the upper air deflector (4) is small in size and large in size, the lower air deflector (5) is large in size and small in size, the small opening end and the large opening end of the upper air deflector and the large opening end of the lower air deflector are respectively fixedly connected with the inner side wall and the outer side wall of the annular cavity (12), the annular cavity (12) is divided into an upper cooling chamber (121), an intermediate cooling chamber (122) and a lower cooling chamber (123) by the upper air deflector (4) and the lower air deflector (5), and the spiral cooling pipeline (3) penetrates through the lower air deflector (5) and the upper air deflector (4) and extends to the inner wall of each cooling chamber;
the left outer side wall and the right outer side wall of the middle cooling chamber (122) are respectively provided with a blower (6), the inner wall of the middle cooling chamber (122) is provided with a plurality of first air inlet holes (13) communicated with the central channel (11), a first air direction adjusting plate (61) is arranged in the middle cooling chamber (122) between the first air inlet holes (13) and the blower (6), the first air direction adjusting plate (61) is provided with a plurality of first air guide holes (62), and the positions of the first air guide holes (62) and the first air inlet holes (13) are staggered;
be equipped with air exhauster (7) on the lateral wall about lower cooling chamber (123) respectively, seted up on the inner wall of lower cooling chamber (123) with communicating convulsions hole (14) of central channel (11), air outlet pipe (71) of air exhauster (7) extend to go up the inside of cooling chamber (121), go up set up on the inner wall of cooling chamber (121) with communicating second fresh air inlet (15) of central channel (11).
2. The cooling device for direct melt spinning finished products according to claim 1, wherein the first wind direction adjusting plates (61) are arc-shaped, and two first wind direction adjusting plates (61) are butted or integrally connected to form a cylinder shape.
3. The cooling device for the direct melt spinning finished product according to claim 2, wherein an arc-shaped first dust removing filter screen (63) is arranged on one side of the first air direction adjusting plate (61) close to the blower (6), and the two first dust removing filter screens (63) are butted or integrally connected to form a cylinder shape.
4. The cooling device for the direct melt spinning finished product according to claim 1, wherein an arc-shaped second dust removing filter screen (72) is arranged in the lower cooling chamber (123) between the air suction hole (14) and the air suction fan (7), and the two second dust removing filter screens (72) are butted or integrally connected to form a cylinder shape.
5. The cooling device for the melt direct spinning finished product according to claim 1, wherein a flared air guiding hood (73) is arranged at a port of the air outlet pipeline (71) in the upper cooling chamber (121), a second air direction adjusting plate (74) is arranged between the flared air guiding hood (73) and the second air inlet hole (15), the second air direction adjusting plate (74) is provided with a plurality of second air guiding holes (75), and the second air guiding holes (75) and the second air inlet hole (15) are arranged in a staggered manner.
6. The cooling device for direct melt spinning products as claimed in claim 5, wherein the second wind direction adjusting plates (74) are arc-shaped, and two second wind direction adjusting plates (74) are butted or integrally connected to form a cylinder shape.
7. The cooling device for the direct-spinning finished product of the melt according to claim 1, wherein a temperature sensor (8) is arranged on the inner wall of the lower end of the central channel (11), the temperature sensor (8) is connected with a controller, and the controller controls the opening and closing of the exhaust fan (7) according to temperature information monitored by the temperature sensor (8).
8. The cooling device for the direct melt-spun product according to claim 1, wherein:
the cooling liquid tank (32) comprises an upper chamber (321) and a lower chamber (322), and the liquid inlet pipe (31) and the liquid return pipe (33) are respectively connected with the upper chamber (321) and the lower chamber (322);
a refrigerator (9) is arranged on one side of the lower cavity (322), the liquid return pipe (33) is connected with the liquid inlet end of the refrigerator (9), a liquid pump (10) is further arranged on the other side of the lower cavity (322), and the liquid outlet end of the liquid pump (10) is communicated with the upper cavity (321).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210931361.2A CN115821402A (en) | 2022-08-04 | 2022-08-04 | Cooling device for melt direct spinning finished product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210931361.2A CN115821402A (en) | 2022-08-04 | 2022-08-04 | Cooling device for melt direct spinning finished product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115821402A true CN115821402A (en) | 2023-03-21 |
Family
ID=85523011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210931361.2A Withdrawn CN115821402A (en) | 2022-08-04 | 2022-08-04 | Cooling device for melt direct spinning finished product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115821402A (en) |
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2022
- 2022-08-04 CN CN202210931361.2A patent/CN115821402A/en not_active Withdrawn
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Application publication date: 20230321 |