CN113481635A - Heating adjustment type yarn drawing device and drawing process thereof - Google Patents
Heating adjustment type yarn drawing device and drawing process thereof Download PDFInfo
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- CN113481635A CN113481635A CN202110839185.5A CN202110839185A CN113481635A CN 113481635 A CN113481635 A CN 113481635A CN 202110839185 A CN202110839185 A CN 202110839185A CN 113481635 A CN113481635 A CN 113481635A
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- positioning
- pipe
- yarn
- drawing box
- exhaust hood
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000008569 process Effects 0.000 title claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 238000001125 extrusion Methods 0.000 claims abstract description 20
- 238000007667 floating Methods 0.000 claims description 30
- 238000001914 filtration Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000033001 locomotion Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 239000004753 textile Substances 0.000 description 4
- 244000025254 Cannabis sativa Species 0.000 description 3
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 3
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 3
- 235000009120 camo Nutrition 0.000 description 3
- 235000005607 chanvre indien Nutrition 0.000 description 3
- 239000011487 hemp Substances 0.000 description 3
- 238000009987 spinning Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H13/00—Other common constructional features, details or accessories
- D01H13/30—Moistening, sizing, oiling, waxing, colouring, or drying yarns or the like as incidental measures during spinning or twisting
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H11/00—Arrangements for confining or removing dust, fly or the like
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H13/00—Other common constructional features, details or accessories
- D01H13/30—Moistening, sizing, oiling, waxing, colouring, or drying yarns or the like as incidental measures during spinning or twisting
- D01H13/306—Moistening, sizing, oiling, waxing, colouring, or drying yarns or the like as incidental measures during spinning or twisting by applying fluids, e.g. steam or oiling liquids
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a heating regulation type yarn drawing device and a drawing process thereof, wherein the heating regulation type yarn drawing device comprises a drawing box, an extrusion wheel, an extrusion bottom block, a heating fan, an exhaust mechanism, a drawing wheel and a telescopic driving mechanism; the upper side and the lower side of the yarn are heated and dried through the exhaust hood, so that the heating efficiency and the heating speed are greatly improved.
Description
Technical Field
The invention relates to a heating adjustment type yarn drawing device and a drawing process thereof.
Background
Along with the rapid development of economic technology, some textile machines are the general names of various mechanical equipment required for processing natural fibers or chemical fibers into textiles, and the working procedures required for processing different fibers such as cotton, hemp, silk, wool and the like into textiles are different, so that the required machines are various and various in variety, and a drawing and extruding machine extrudes the cotton and hemp raw materials of the cotton and hemp raw materials, keeps the fibers in slivers straight and parallel, reduces hooks, ensures that the fineness meets the specification and is suitable for subsequent processing production; at present, the spinning industry is an important branch of the textile industry, the drawing frame is an important production device of the spinning industry, the position is not replaceable, and a plurality of spun yarns in the prior art have water absorption property, so that the phenomenon of winding is easy to occur in the drawing device, and the spinning quality of drawing is influenced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention solves the problems that: provides a heating adjustment type yarn drawing device capable of quickly drying and adjusting drying space and a drawing process thereof.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a heating regulation type yarn drawing device comprises a drawing box, an extrusion wheel, an extrusion bottom block, a heating fan, an exhaust mechanism, a drawing wheel and a telescopic driving mechanism; supporting plates are respectively arranged on two sides of the bottom of the drawing box; an extrusion wheel and an extrusion bottom block are respectively arranged at the upper part and the lower part in one side of the drawing box; an air exhaust mechanism is arranged in the middle of the drawing box; a drawing wheel is respectively arranged at the upper part and the lower part in the other side of the drawing box; an air exhaust mechanism is respectively arranged in the drawing box from top to bottom; the exhaust mechanism comprises a positioning pipe, a telescopic pipe, a floating pipe and an exhaust hood; a positioning pipe is respectively arranged at the upper part and the lower part in the drawing box; the inner ends of the positioning pipes are respectively provided with a telescopic pipe; the inner ends of the extension tubes are respectively provided with a floating tube; the inner ends of the floating pipes are respectively provided with an exhaust hood, and the exhaust hoods are respectively arranged in the middle of the interior of the drawing box in an up-down opposite mode; a telescopic driving mechanism is arranged on one side of the inner part of the middle of the drawing box and synchronously drives the exhaust hood to move up and down relatively; a heating fan is arranged on the other side of the inner part of the middle of the drawing box; the upper side and the lower side of the heating fan are respectively connected with the side part of the positioning pipe through vent pipes.
Furthermore, the telescopic driving mechanism comprises a guide cylinder, a guide rod, a positioning plate, a driving screw rod, a floating thread block and a connecting rod; one side of the middle inner part of the drawing box is respectively provided with a positioning plate up and down; the driving screw is rotationally clamped on the positioning plate; one side of the outer end of the exhaust hood is provided with a guide rod respectively; the upper side and the lower side of the interior of the drawing box are respectively provided with a guide cylinder; the outer ends of the guide rods are respectively inserted into the guide cylinders in a sliding manner; one side of the exhaust hood is provided with a floating thread block through a connecting rod; the upper and lower peripheries of the driving screw are respectively provided with an external thread ring surface with opposite threads, and the upper and lower external thread ring surfaces of the driving screw are respectively in threaded connection with a floating thread block.
Further, the telescopic filter assembly is further included; the telescopic filtering component comprises a positioning rod, a connecting ring and a filtering net; two positioning rods are respectively arranged on two sides of the interior of the floating pipe; the inner ends of the positioning rods are respectively arranged on the inner side walls of the floating tubes, and the outer ends of the positioning rods penetrate through the telescopic tubes and then extend into the positioning tubes; the outer end of the positioning rod is provided with a connecting ring; the connecting ring is connected with the inner side wall of the positioning pipe in an abutting and sliding manner; a filter screen is arranged on the inner side of the connecting ring; the upper side wall and the lower side wall of the drawing box are respectively provided with a through port, the outer end of the positioning pipe is provided with a threaded opening, and the outer end of the threaded opening is communicated with the through ports; and the threaded openings are respectively provided with a threaded sealing sleeve in a threaded rotating mode.
Furthermore, the vent pipes on the upper side and the lower side of the heating fan are respectively provided with an opening and closing valve.
Furthermore, the upper end of the drawing box is provided with a circulating pipe.
Further, the extension tube is made of a high temperature resistant bellows.
A drawing process of a heating regulation type yarn drawing device comprises the following steps: open heating fan, make the hot gas flow get into the registration arm in proper order through the breather pipe, flexible pipe, the pipe floats, the exhaust hood, make the exhaust hood that sets up from top to bottom carry out hot gas flow and carry, send the yarn into the drawing incasement through feeding the line drum, the yarn is at first extruded the direction through extrusion wheel and extrusion bottom block, then the yarn is dried through the exhaust hood of relative setting from top to bottom again, judge the stoving interval of yarn thickness regulation exhaust hood, the rotary drive screw rod, drive relative motion about the screw block that floats, and then drive the exhaust hood relative motion about the stoving interval, the yarn carries out the drawing through the drawing wheel at last and discharges.
The invention has the advantages of
1. The upper side and the lower side of the yarn are heated and dried through the exhaust hood, so that the heating efficiency and the heating speed are greatly improved.
2. In order to prevent conveyed hot air flow from polluting yarns, the telescopic filter assembly is additionally arranged, the hot air flow input from the positioning pipe is filtered through the filter screen, impurities are accumulated on the filter screen after the telescopic filter assembly is used for a period of time, the floating thread block is driven to move towards two sides by rotating the driving screw rod, the floating pipe is driven to move towards two sides by the exhaust hood, the positioning rod, the connecting ring and the filter screen are sequentially driven to move towards two sides, the filter screen extends out of the outer end of the positioning pipe after the thread sealing sleeve is opened, and the filter screen is subjected to deslagging and scrubbing cleaning, so that the filtering capacity of the filter screen is reset.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic side view of the present invention.
FIG. 3 is a schematic view of a telescoping filter assembly according to the present invention.
FIG. 4 is a schematic view of the filter net of the present invention extending from the outer end of the positioning tube.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, a heating regulation type yarn drawing device includes a drawing box 1, an extrusion wheel 2, an extrusion bottom block 3, a heating fan 7, an exhaust mechanism 5, a drawing wheel 4, and a telescopic driving mechanism 6; two sides of the bottom of the drawing box 1 are respectively provided with a supporting plate 11; an extrusion wheel 2 and an extrusion bottom block 3 are respectively arranged at the upper part and the lower part in one side of the drawing box 1; an air exhaust mechanism 5 is arranged in the middle of the drawing box 1; a doubling wheel 4 is respectively arranged at the upper part and the lower part in the other side of the drawing box 1; an air exhaust mechanism 5 is respectively arranged at the upper part and the lower part in the drawing box 1; the exhaust mechanism 5 comprises a positioning pipe 54, a telescopic pipe 53, a floating pipe 52 and an exhaust hood 51; a positioning pipe 54 is respectively arranged at the upper part and the lower part in the drawing box 1; the inner ends of the positioning pipes 54 are respectively provided with an extension pipe 53; the inner ends of the extension tubes 53 are respectively provided with a floating tube 52; the inner ends of the floating pipes 52 are respectively provided with an exhaust hood 51, and the exhaust hoods 51 are respectively arranged in the middle of the interior of the drawing box 1 in an up-down opposite manner; a telescopic driving mechanism 6 is arranged on one side of the inner part of the middle of the drawing box 1, and the telescopic driving mechanism 6 synchronously drives the exhaust hood 51 to move up and down relatively; the other side of the middle inner part of the drawing box 1 is provided with a heating fan 7; the upper and lower sides of the heating blower 7 are connected to the side of the positioning pipe 54 through air pipes 71.
As shown in fig. 1 to 4, it is further preferable that the telescopic driving mechanism 6 includes a guide cylinder 66, a guide rod 65, a positioning plate 61, a driving screw 62, a floating screw block 63, and a connecting rod 64; a positioning plate 61 is respectively arranged at the upper part and the lower part of one side in the middle of the drawing box 1; the driving screw 62 is rotationally clamped on the positioning plate 61; one side of the outer end of the exhaust hood 51 is provided with a guide rod 65; the upper side and the lower side of the interior of the drawing box 1 are respectively provided with a guide cylinder 66; the outer ends of the guide rods 65 are respectively inserted into the guide cylinders 66 in a sliding manner; one side of the exhaust hood 51 is provided with a floating thread block 63 through a connecting rod 64; the upper and lower peripheries of the driving screw 62 are respectively provided with an external thread ring surface with opposite threads, and the upper and lower external thread ring surfaces of the driving screw 62 are respectively connected with a floating thread block 63 in a threaded manner. Further, a telescopic filter assembly 8 is also included; the telescopic filter assembly 8 comprises a positioning rod 81, a connecting ring 82 and a filter screen 83; two positioning rods 81 are respectively arranged on two sides of the interior of the floating pipe 54; the inner ends of the positioning rods 82 are respectively installed on the inner side walls of the floating pipes 54, and the outer ends of the positioning rods 81 penetrate through the extension pipes 53 and then extend into the positioning pipes 54; the outer end of the positioning rod 81 is provided with a connecting ring 82; the connecting ring 82 is in abutting sliding connection with the inner side wall of the positioning tube 54; a filter screen 83 is arranged on the inner side of the connecting ring 82; the upper side wall and the lower side wall of the drawing box 1 are respectively provided with a through port, the outer end of the positioning pipe 54 is provided with a threaded opening 541, and the outer end of the threaded opening 541 is communicated with the through ports; a threaded closing sleeve 542 is respectively and rotatably mounted on the threaded openings 541 in a threaded manner. Furthermore, the vent pipes 71 on the upper and lower sides of the heating fan 7 are respectively provided with an on-off valve 72. Further, the upper end of the drawing box 1 is provided with a circulating pipe 12. Further, the extension tube 53 is made of a high temperature resistant bellows tube.
As shown in fig. 1 to 4, a drawing process of a thermally regulated yarn drawing device includes the steps of: the heating fan 7 is started, so that hot air flows sequentially enter the positioning pipe 54 through the vent pipe 71, the telescopic pipe 53, the floating pipe 53 and the exhaust hood 51, the vertically arranged exhaust hood 51 is used for conveying hot air flows up and down, yarns are fed into the drawing box 1 through the yarn feeding cylinder, the yarns are extruded and guided through the extrusion wheel 2 and the extrusion bottom block 3 at first, then the yarns are dried through the vertically oppositely arranged exhaust hoods 51, the drying interval of the exhaust hood 51 is adjusted by judging the thickness of the yarns, the screw rod 62 is driven to rotate and drive the floating screw block 63 to move up and down relatively, the drying interval is adjusted by driving the vertically relative movement of the exhaust hood 51, and finally the yarns are drawn and discharged through the drawing wheel 4.
The upper side and the lower side of the yarn are heated and dried through the exhaust hood 51, so that the heating efficiency and the heating speed are greatly improved.
In order to prevent conveyed hot air flow from polluting yarns, the telescopic filter assembly 8 is additionally arranged, the hot air flow input from the positioning pipe 54 is filtered through the filter screen 83, impurities are accumulated on the filter screen 83 after the telescopic filter assembly is used for a period of time, the floating thread block 63 is driven to move towards two sides by rotating the driving screw 62, the floating pipe 52 is driven to move towards two sides by the exhaust hood 51, the positioning rod 81, the connecting ring 82 and the filter screen 83 are sequentially driven to move towards two sides, the filter screen 83 extends out of the outer end of the positioning pipe 54 after the thread sealing sleeve 542 is opened, and the filter screen 83 is subjected to deslagging and scrubbing cleaning, so that the filtering capacity of the filter screen 83 is reset.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A heating regulation type yarn drawing device is characterized by comprising a drawing box, an extrusion wheel, an extrusion bottom block, a heating fan, an exhaust mechanism, a drawing wheel and a telescopic driving mechanism; supporting plates are respectively arranged on two sides of the bottom of the drawing box; an extrusion wheel and an extrusion bottom block are respectively arranged at the upper part and the lower part in one side of the drawing box; an air exhaust mechanism is arranged in the middle of the drawing box; a drawing wheel is respectively arranged at the upper part and the lower part in the other side of the drawing box; an air exhaust mechanism is respectively arranged in the drawing box from top to bottom; the exhaust mechanism comprises a positioning pipe, a telescopic pipe, a floating pipe and an exhaust hood; a positioning pipe is respectively arranged at the upper part and the lower part in the drawing box; the inner ends of the positioning pipes are respectively provided with a telescopic pipe; the inner ends of the extension tubes are respectively provided with a floating tube; the inner ends of the floating pipes are respectively provided with an exhaust hood, and the exhaust hoods are respectively arranged in the middle of the interior of the drawing box in an up-down opposite mode; a telescopic driving mechanism is arranged on one side of the inner part of the middle of the drawing box and synchronously drives the exhaust hood to move up and down relatively; a heating fan is arranged on the other side of the inner part of the middle of the drawing box; the upper side and the lower side of the heating fan are respectively connected with the side part of the positioning pipe through vent pipes.
2. The thermally regulated yarn drawing device according to claim 1, wherein the telescopic driving mechanism comprises a guide cylinder, a guide rod, a positioning plate, a driving screw, a floating screw block, a connecting rod; one side of the middle inner part of the drawing box is respectively provided with a positioning plate up and down; the driving screw is rotationally clamped on the positioning plate; one side of the outer end of the exhaust hood is provided with a guide rod respectively; the upper side and the lower side of the interior of the drawing box are respectively provided with a guide cylinder; the outer ends of the guide rods are respectively inserted into the guide cylinders in a sliding manner; one side of the exhaust hood is provided with a floating thread block through a connecting rod; the upper and lower peripheries of the driving screw are respectively provided with an external thread ring surface with opposite threads, and the upper and lower external thread ring surfaces of the driving screw are respectively in threaded connection with a floating thread block.
3. The thermally regulated yarn drawing device of claim 2 further comprising a telescoping filter assembly; the telescopic filtering component comprises a positioning rod, a connecting ring, a filtering net and a thread sealing sleeve; two positioning rods are respectively arranged on two sides of the interior of the floating pipe; the inner ends of the positioning rods are respectively arranged on the inner side walls of the floating tubes, and the outer ends of the positioning rods penetrate through the telescopic tubes and then extend into the positioning tubes; the outer end of the positioning rod is provided with a connecting ring; the connecting ring is connected with the inner side wall of the positioning pipe in an abutting and sliding manner; a filter screen is arranged on the inner side of the connecting ring; the upper side wall and the lower side wall of the drawing box are respectively provided with a through port, the outer end of the positioning pipe is provided with a threaded opening, and the outer end of the threaded opening is communicated with the through ports; and the threaded openings are respectively provided with a threaded sealing sleeve in a threaded rotating mode.
4. The heating regulation type yarn drawing device as claimed in claim 1, wherein the vent pipes on the upper and lower sides of the heating blower are respectively provided with an on-off valve.
5. The thermally regulated yarn drawing device according to claim 1, wherein a flow pipe is provided at an upper end of the drawing box.
6. The thermally regulated yarn drawing device according to claim 1, wherein the bellows is made of a high temperature resistant bellows.
7. A drawing process of the heat regulating type yarn drawing device according to claim 2, characterized by comprising the steps of: open heating fan, make the hot gas flow get into the registration arm in proper order through the breather pipe, flexible pipe, the pipe floats, the exhaust hood, make the exhaust hood that sets up from top to bottom carry out hot gas flow and carry, send the yarn into the drawing incasement through feeding the line drum, the yarn is at first extruded the direction through extrusion wheel and extrusion bottom block, then the yarn is dried through the exhaust hood of relative setting from top to bottom again, judge the stoving interval of yarn thickness regulation exhaust hood, the rotary drive screw rod, drive relative motion about the screw block that floats, and then drive the exhaust hood relative motion about the stoving interval, the yarn carries out the drawing through the drawing wheel at last and discharges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110839185.5A CN113481635A (en) | 2021-07-23 | 2021-07-23 | Heating adjustment type yarn drawing device and drawing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110839185.5A CN113481635A (en) | 2021-07-23 | 2021-07-23 | Heating adjustment type yarn drawing device and drawing process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113481635A true CN113481635A (en) | 2021-10-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110839185.5A Withdrawn CN113481635A (en) | 2021-07-23 | 2021-07-23 | Heating adjustment type yarn drawing device and drawing process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113481635A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208983757U (en) * | 2018-10-26 | 2019-06-14 | 江苏中大包装材料有限公司 | A kind of activity fitting abutting formula heat shrink films drying unit |
| CN209295574U (en) * | 2018-11-28 | 2019-08-23 | 湖州鑫润田纺织有限公司 | A kind of textile yarn drying unit |
| CN210458764U (en) * | 2019-08-15 | 2020-05-05 | 浙江夏王纸业有限公司 | Drying device for producing pure black base paper |
| CN112377700A (en) * | 2020-12-21 | 2021-02-19 | 江苏开创检测技术有限公司 | Radial adjustment type metal pipeline joint |
| CN212585342U (en) * | 2020-06-01 | 2021-02-23 | 甘肃诺尔达工贸有限公司 | Plug-type heat preservation intergral template processing drying device of multilayer |
| CN212834245U (en) * | 2020-06-05 | 2021-03-30 | 浙江湖州威达集团股份有限公司 | Open-end spinning cotton colored spun yarn strip combining device |
| CN112760873A (en) * | 2020-12-28 | 2021-05-07 | 广西中科鼎新产业技术研究院有限公司 | Preparation device and preparation method of polypropylene hollow fiber membrane with antibacterial function |
| CN112815636A (en) * | 2021-02-02 | 2021-05-18 | 山东莱威新材料有限公司 | Device and method for manufacturing high-performance fiber non-woven fabric |
| CN113604916A (en) * | 2021-07-23 | 2021-11-05 | 江苏华信亚麻纺织有限公司 | Butting adjustment type yarn drawing device and drawing process thereof |
-
2021
- 2021-07-23 CN CN202110839185.5A patent/CN113481635A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208983757U (en) * | 2018-10-26 | 2019-06-14 | 江苏中大包装材料有限公司 | A kind of activity fitting abutting formula heat shrink films drying unit |
| CN209295574U (en) * | 2018-11-28 | 2019-08-23 | 湖州鑫润田纺织有限公司 | A kind of textile yarn drying unit |
| CN210458764U (en) * | 2019-08-15 | 2020-05-05 | 浙江夏王纸业有限公司 | Drying device for producing pure black base paper |
| CN212585342U (en) * | 2020-06-01 | 2021-02-23 | 甘肃诺尔达工贸有限公司 | Plug-type heat preservation intergral template processing drying device of multilayer |
| CN212834245U (en) * | 2020-06-05 | 2021-03-30 | 浙江湖州威达集团股份有限公司 | Open-end spinning cotton colored spun yarn strip combining device |
| CN112377700A (en) * | 2020-12-21 | 2021-02-19 | 江苏开创检测技术有限公司 | Radial adjustment type metal pipeline joint |
| CN112760873A (en) * | 2020-12-28 | 2021-05-07 | 广西中科鼎新产业技术研究院有限公司 | Preparation device and preparation method of polypropylene hollow fiber membrane with antibacterial function |
| CN112815636A (en) * | 2021-02-02 | 2021-05-18 | 山东莱威新材料有限公司 | Device and method for manufacturing high-performance fiber non-woven fabric |
| CN113604916A (en) * | 2021-07-23 | 2021-11-05 | 江苏华信亚麻纺织有限公司 | Butting adjustment type yarn drawing device and drawing process thereof |
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Application publication date: 20211008 |