CN111663189B - Fuse wire nozzle for melt spinning - Google Patents
Fuse wire nozzle for melt spinning Download PDFInfo
- Publication number
- CN111663189B CN111663189B CN202010611505.7A CN202010611505A CN111663189B CN 111663189 B CN111663189 B CN 111663189B CN 202010611505 A CN202010611505 A CN 202010611505A CN 111663189 B CN111663189 B CN 111663189B
- Authority
- CN
- China
- Prior art keywords
- fixing plate
- height
- height adjusting
- angle adjusting
- rod
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 238000002074 melt spinning Methods 0.000 title claims abstract description 32
- 239000000203 mixture Substances 0.000 description 9
- 210000001503 joint Anatomy 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D4/00—Spinnerette packs; Cleaning thereof
- D01D4/02—Spinnerettes
- D01D4/025—Melt-blowing or solution-blowing dies
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D13/00—Complete machines for producing artificial threads
- D01D13/02—Elements of machines in combination
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The invention discloses a fuse wire nozzle for melt spinning, which comprises a nozzle body, wherein the nozzle body is fixedly connected with a conveying hard tube, the upper end of the conveying hard tube is connected with a conveying hose, the fuse wire nozzle also comprises a fixing plate, the upper end of the fixing plate is connected with a height adjusting rod piece, the conveying hard tube is connected with the fixing plate through an angle adjusting mechanism, the fixing plate comprises a first fixing plate and a second fixing plate, the first fixing plate is connected with the second fixing plate through a plurality of connecting rods, the angle adjusting mechanism comprises an angle adjusting groove arranged on the first fixing plate, a friction sleeve matched with the angle adjusting groove is arranged on the conveying hard tube, the fuse wire nozzle also comprises an angle adjusting connecting block, the middle of the angle adjusting connecting block is of a hollow structure, an angle adjusting through hole matched with the angle adjusting connecting block is arranged on the second fixing plate, the conveying hard tube is also connected with the upper end and the lower end of the angle adjusting connecting block through a connecting piece, the fuse wire nozzle for melt spinning in the application can adjust the rotation angle and the height.
Description
Technical Field
The invention relates to the related field of melt spinning, in particular to a fuse wire nozzle for melt spinning.
Background
Melt spinning, also known as melt spinning, one of the main spinning methods of chemical fibers, the fiber-forming high polymer is directly output from a polymerization device in a melt form under the condition that the temperature is 10-40 ℃ below the thermal decomposition point and is higher than the melting point, or is melt extruded by a screw in a slice state) and is conveyed to a metering pump, and the fiber-forming high polymer is quantitatively fed to a spinneret plate assembly for filtration, and liquid fine flow is extruded from a spinneret hole and is cooled and solidified in air or a liquid medium to form nascent fiber. Then oiling and winding or winding after continuous stretching.
Melt spinning is a common processing means in the textile industry, however, the existing fuse wire nozzle for melt spinning is generally fixed on a processing device and can not rotate in a direction, so that the use is inconvenient sometimes, and therefore, a fuse wire nozzle for melt spinning which can rotate in a direction is urgently needed.
Disclosure of Invention
The present invention has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide a fuse head for melt spinning.
In order to achieve the purpose, the invention provides the following technical scheme:
a fuse wire nozzle for melt spinning comprises a nozzle body which is fixedly connected with a delivery hard tube, the upper end of the conveying hard pipe is connected with the conveying hose, the conveying hard pipe also comprises a fixing plate, the upper end of the fixing plate is connected with the height adjusting rod piece, the conveying hard pipe is connected with the fixed plate through the angle adjusting mechanism, the fixed plate comprises a first fixed plate and a second fixed plate, the first fixing plate and the second fixing plate are connected through a plurality of connecting rods, the angle adjusting mechanism comprises an angle adjusting groove arranged on the first fixing plate, the conveying hard pipe is provided with a friction sleeve matched with the angle adjusting groove and also comprises an angle adjusting connecting block, the middle of the angle adjusting connecting block is of a hollow structure, angle adjusting through holes matched with the angle adjusting connecting block are formed in the second fixing plate, and the conveying hard pipe is connected with the upper end and the lower end of the angle adjusting connecting block through connecting pieces.
As a further scheme of the invention: the number of the connecting rods is four, and the connecting rods are uniformly distributed between the first fixing plate and the second fixing plate.
As a still further scheme of the invention: the friction sleeve is a rubber sleeve, and the connecting piece is elastic rubber.
As a still further scheme of the invention: the height adjusting rod piece comprises a height adjusting inner rod and a height adjusting outer rod, the height adjusting outer rod is sleeved outside the height adjusting inner rod, the height adjusting outer rod is connected with the first fixing plate, two height adjusting grooves are symmetrically formed in the height adjusting inner rod, a clamping ball is arranged in each height adjusting groove, a butt joint plate is further arranged in each height adjusting groove, one end of each butt joint plate is abutted to the corresponding clamping ball, the other end of each butt joint plate is connected with the corresponding height adjusting groove through an elastic piece, and a plurality of clamping holes matched with the corresponding clamping balls are formed in the height adjusting outer rod.
As a still further scheme of the invention: the elastic piece is a spring, and the number of the clamping holes is six.
As a still further scheme of the invention: the height adjusting rod piece comprises a height adjusting inner rod, a height adjusting outer rod and an adjusting threaded bolt, a fixed block is arranged on the height adjusting outer rod, a threaded hole matched with the adjusting threaded bolt is formed in the fixed block, and a plurality of through holes matched with the adjusting threaded bolt are formed in the height adjusting inner rod.
As a still further scheme of the invention: the number of the first through holes is seven.
Compared with the prior art, the invention has the beneficial effects that: the angle adjusting rod piece comprises a height adjusting inner rod and a height adjusting outer rod, two height adjusting grooves are symmetrically arranged on the height adjusting inner rod, clamping balls are arranged in the two height adjusting grooves, abutting plates are also arranged in the two height adjusting grooves, one end of each abutting plate abuts against the clamping balls, the other end of each abutting plate is connected with the height adjusting grooves through elastic pieces, a plurality of clamping holes matched with the clamping balls are arranged on the height adjusting outer rod, when a user adjusts the height, the clamping balls are clamped in different clamping holes, the length of the height adjusting outer rod extending out of the height adjusting inner rod can be adjusted, and the height of the melt spinning fuse nozzle can be adjusted, height adjustment member includes pole in the altitude mixture control and the outer pole of altitude mixture control, still including adjusting the screw bolt, be provided with on the pole in the altitude mixture control a plurality ofly with adjusting screw bolt complex clearing hole one, the user will adjust the screw bolt and pass different clearing holes screw hole threaded connection in again and fixed block, adjust with the length of the pole height adjustment inner pole that stretches out outside the altitude mixture control pole, with the height of adjusting this fuse shower nozzle for melt spinning, the fuse shower nozzle for melt spinning in this application, angle of rotation's regulation can be carried out, can also carry out the regulation of height, there is very big progress.
Drawings
FIG. 1 is a schematic view of a fuse head for melt spinning.
FIG. 2 is a schematic view showing the construction of a height-adjusting lever in a fuse head for melt spinning in example 1.
FIG. 3 is a schematic view showing the structure of a catching hole in a height-adjusting outer lever of the fuse head for melt spinning in example 1.
FIG. 4 is a schematic view of a fixing plate in a fuse head for melt spinning.
FIG. 5 is a schematic view showing the construction of a height-adjusting lever in a fuse nozzle for melt spinning in example 2.
FIG. 6 is a schematic view showing the structure of a fixing block on a height-adjusting outer bar in the fuse head for melt spinning in example 2.
In the figure: 1-friction sleeve, 2-conveying hard pipe, 3-angle adjusting connecting block, 4-height adjusting inner rod, 5-height adjusting outer rod, 6-connecting piece, 7-nozzle body, 8-fixing plate I, 9-connecting rod, 10-fixing plate II, 11-conveying hose, 12-height adjusting groove, 13-elastic piece, 14-clamping hole, 15-clamping ball, 16-abutting plate, 17-threaded hole, 18-angle adjusting groove, 19-angle adjusting through hole, 20-passing hole I, 21-adjusting threaded bolt and 22-fixing block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1 to 4, in an embodiment of the present invention, a fuse nozzle for melt spinning includes a nozzle main body 7, the nozzle main body 7 is fixedly connected to a conveying hard tube 2, an upper end of the conveying hard tube 2 is connected to an external raw material conveying device through a conveying hose 11, the fuse nozzle further includes a fixing plate, the fixing plate fixes and limits the nozzle main body 7 and the conveying hard tube 2, an upper end of the fixing plate is connected to a height adjusting rod, the height adjusting rod can adjust a height of the fixing plate to adjust a height of the fuse nozzle for melt spinning, so as to facilitate use, the conveying hard tube 2 is connected to the fixing plate through an angle adjusting mechanism, and an angle of the nozzle main body 7 can be adjusted.
The specific form of the fixing plate is not limited, in this embodiment, preferably, the fixing plate includes a first fixing plate 8 and a second fixing plate 10, the first fixing plate 8 and the second fixing plate 10 are connected by a plurality of connecting rods 9, and in this embodiment, preferably, the number of the connecting rods 9 is four and is uniformly distributed between the first fixing plate 8 and the second fixing plate 10.
The specific form of the angle adjusting mechanism is not limited, in this embodiment, preferably, the angle adjusting mechanism includes an angle adjusting groove 18 disposed on the first fixing plate 8, the angle adjusting groove 18 is matched with the conveying hard tube 2, the conveying hard tube 2 can move in the angle adjusting groove 18 to adjust the angle, a friction sleeve 1 matched with the angle adjusting groove 18 is disposed on the conveying hard tube 2, the friction sleeve 1 is disposed to enable the conveying hard tube 2 to be connected with the angle adjusting groove 18 more tightly, in this embodiment, preferably, the friction sleeve 1 is a rubber sleeve, and further includes an angle adjusting connecting block 3, the middle of the angle adjusting connecting block 3 is a hollow structure, the conveying hard tube 2 can pass through the angle adjusting connecting block 3, and an angle adjusting through hole 19 matched with the angle adjusting connecting block 3 is disposed on the second fixing plate 10, carry hard tube 2 and still be connected through connecting piece 6 and angle modulation connecting block 3's upper and lower both ends, in this embodiment, it is preferred, connecting piece 6 is elastic rubber, and the user removes in angle modulation groove 18 and carries hard tube 2, can drive angle modulation connecting block 3 at the 19 internal rotations of angle modulation through-hole then, at this moment, adjusts the angle of shower nozzle main part 7 promptly, is convenient for use.
The specific form of the height adjusting rod member is not limited, in this embodiment, preferably, the height adjusting rod member includes an inner height adjusting rod 4 and an outer height adjusting rod 5, the outer height adjusting rod 5 is sleeved outside the inner height adjusting rod 4, the inner height adjusting rod 4 is connected with an external related device, the outer height adjusting rod 5 is connected with a first fixed plate 8, two height adjusting grooves 12 are symmetrically arranged on the inner height adjusting rod 4, clamping balls 15 are arranged in the two height adjusting grooves 12, abutting plates 16 are further arranged in the two height adjusting grooves 12, one end of each abutting plate 16 abuts against the clamping ball 15, the other end of each abutting plate is connected with the height adjusting grooves 12 through an elastic member 13, in this embodiment, preferably, the elastic member 13 is a spring, a plurality of clamping holes 14 matched with the clamping balls 15 are arranged on the outer height adjusting rod 5, in this embodiment, preferably, the number of the snap-in holes 14 is six, and when the user adjusts the height, the snap-in balls 15 are snapped in the different snap-in holes 14, so that the length of the height-adjusting outer rod 5 extending out of the height-adjusting inner rod 4 can be adjusted to adjust the height of the fuse nozzle for melt spinning.
The working principle of the embodiment is as follows: the conveying hard pipe 2 is connected with the fixed plate through an angle adjusting mechanism, the upper end of the fixed plate is connected with a height adjusting rod piece, the angle adjusting mechanism comprises an angle adjusting groove 18 arranged on a first fixed plate 8 and an angle adjusting connecting block 3, the middle of the angle adjusting connecting block 3 is of a hollow structure, the conveying hard pipe 2 is further connected with the upper end and the lower end of the angle adjusting connecting block 3 through a connecting piece 6, a user moves the conveying hard pipe 2 in the angle adjusting groove 18 and then can drive the angle adjusting connecting block 3 to rotate in an angle adjusting through hole 19, at the moment, the angle of the nozzle body 7 is adjusted, the use is convenient, the height adjusting rod piece comprises a height adjusting inner rod 4 and a height adjusting outer rod 5, two height adjusting grooves 12 are symmetrically arranged on the height adjusting inner rod 4, clamping balls 15 are arranged in the two height adjusting grooves 12, and abutting plates 16 are also arranged in the two height adjusting grooves 12, butt 16's one end and joint ball 15 butt, the one end is passed through elastic component 13 and is connected with altitude mixture control groove 12 in addition, be provided with a plurality ofly on the outer pole 5 of altitude mixture control with joint ball 15 complex joint hole 14, the user is when carrying out altitude mixture control, locates different joint holes 14 with joint ball 15 card, can stretch out the length of pole 4 in the altitude mixture control to the outer pole 5 of altitude mixture control and adjust to adjust this melt spinning is with fuse shower nozzle's height.
Example 2
Referring to fig. 5 to 6, the specific form of the height adjustment rod is not limited, in this embodiment, preferably, the height adjustment rod includes an inner height adjustment rod 4 and an outer height adjustment rod 5, and further includes an adjustment threaded bolt 21, the outer height adjustment rod 5 is provided with a fixing block 22, a threaded hole 17 matched with the adjustment threaded bolt 21 is formed in the fixing block 22, the inner height adjustment rod 4 is provided with a plurality of through holes one 20 matched with the adjustment threaded bolt 21, in this embodiment, preferably, the number of the through holes one 20 is seven, and a user passes the adjustment threaded bolt 21 through different through holes one 20 and then is in threaded connection with the threaded hole 17 in the fixing block 22, so as to adjust the length of the outer height adjustment rod 5 extending out of the inner height adjustment rod 4, and adjust the height of the fuse nozzle for melt spinning.
The working principle of the embodiment is as follows: the height adjusting rod piece comprises a height adjusting inner rod 4 and a height adjusting outer rod 5 and further comprises an adjusting threaded bolt 21, a plurality of through holes 20 matched with the adjusting threaded bolt 21 are formed in the height adjusting inner rod 4, a user can enable the adjusting threaded bolt 21 to penetrate through different through holes 20 and then be in threaded connection with a threaded hole 17 in a fixing block 22, the length of the height adjusting outer rod 5 extending out of the height adjusting inner rod 4 is adjusted, and the height of the fuse wire spray head for melt spinning is adjusted.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A fuse wire nozzle for melt spinning comprises a nozzle body (7) and is characterized in that the nozzle body (7) is fixedly connected with a conveying hard tube (2), the upper end of the conveying hard tube (2) is connected with a conveying hose (11), the fuse wire nozzle further comprises a fixing plate, the upper end of the fixing plate is connected with a height adjusting rod piece, the conveying hard tube (2) is connected with the fixing plate through an angle adjusting mechanism, the fixing plate comprises a first fixing plate (8) and a second fixing plate (10), the first fixing plate (8) is connected with the second fixing plate (10) through a plurality of connecting rods (9), the angle adjusting mechanism comprises an angle adjusting groove (18) formed in the first fixing plate (8), a friction sleeve (1) matched with the angle adjusting groove (18) is arranged on the conveying hard tube (2), and the fuse wire nozzle further comprises an angle adjusting connecting block (3), the middle of the angle adjusting connecting block (3) is of a hollow structure, an angle adjusting through hole (19) matched with the angle adjusting connecting block (3) is formed in the second fixing plate (10), the conveying hard tube (2) is further connected with the upper end and the lower end of the angle adjusting connecting block (3) through a connecting piece (6), the height adjusting rod piece comprises a height adjusting inner rod (4) and a height adjusting outer rod (5), the height adjusting outer rod (5) is sleeved on the outer side of the height adjusting inner rod (4), the height adjusting outer rod (5) is connected with the first fixing plate (8), two height adjusting grooves (12) are symmetrically formed in the height adjusting inner rod (4), clamping balls (15) are arranged in the two height adjusting grooves (12), abutting plates (16) are further arranged in the two height adjusting grooves (12), and one end of each abutting plate (16) abuts against the clamping ball (15), the other end is connected with a height adjusting groove (12) through an elastic piece (13), and a plurality of clamping holes (14) matched with clamping balls (15) are formed in the height adjusting outer rod (5).
2. A fuse nozzle for melt spinning according to claim 1, characterised in that the number of connecting rods (9) is four and is evenly distributed between the first fixing plate (8) and the second fixing plate (10).
3. A fuse spout head for melt spinning according to claim 1, characterized in that the friction sleeve (1) is a rubber sleeve and the connecting piece (6) is an elastic rubber.
4. A fuse head as claimed in claim 1, characterized in that the resilient member (13) is a spring and the number of snap-in openings (14) is six.
5. A fuse plug for melt spinning according to claim 1, characterized in that the height adjustment lever member comprises an inner height adjustment lever (4) and an outer height adjustment lever (5), and further comprises an adjustment threaded bolt (21), a fixing block (22) is arranged on the outer height adjustment lever (5), a threaded hole (17) matched with the adjustment threaded bolt (21) is arranged in the fixing block (22), and a plurality of first through holes (20) matched with the adjustment threaded bolt (21) are arranged on the inner height adjustment lever (4).
6. A fuse nozzle as claimed in claim 5, characterised in that the number of said first through holes (20) is seven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010611505.7A CN111663189B (en) | 2020-06-29 | 2020-06-29 | Fuse wire nozzle for melt spinning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010611505.7A CN111663189B (en) | 2020-06-29 | 2020-06-29 | Fuse wire nozzle for melt spinning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111663189A CN111663189A (en) | 2020-09-15 |
| CN111663189B true CN111663189B (en) | 2021-08-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010611505.7A Expired - Fee Related CN111663189B (en) | 2020-06-29 | 2020-06-29 | Fuse wire nozzle for melt spinning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111663189B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2405990A1 (en) * | 1974-02-08 | 1975-09-11 | Barmag Barmer Maschf | Threader for looping yarns wholly or partly round rollers - pneumatic attachment feeds through enclosed roller banks |
| CN107955978A (en) * | 2018-01-06 | 2018-04-24 | 苏州乐米凡电气科技有限公司 | A kind of experimental branch line solution spinning nozzle being easily changed |
| CN208532976U (en) * | 2018-05-21 | 2019-02-22 | 浙江工业大学之江学院 | A kind of electrostatic spinning nozzle frame of adjustment height and angle |
| CN109610021A (en) * | 2019-01-22 | 2019-04-12 | 嘉兴学院 | A kind of preparation method and device of nanofiber yarn |
| CN109825885A (en) * | 2019-03-22 | 2019-05-31 | 大连民族大学 | Experimental method of electrospinning based on controllable complex electric field |
-
2020
- 2020-06-29 CN CN202010611505.7A patent/CN111663189B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2405990A1 (en) * | 1974-02-08 | 1975-09-11 | Barmag Barmer Maschf | Threader for looping yarns wholly or partly round rollers - pneumatic attachment feeds through enclosed roller banks |
| CN107955978A (en) * | 2018-01-06 | 2018-04-24 | 苏州乐米凡电气科技有限公司 | A kind of experimental branch line solution spinning nozzle being easily changed |
| CN208532976U (en) * | 2018-05-21 | 2019-02-22 | 浙江工业大学之江学院 | A kind of electrostatic spinning nozzle frame of adjustment height and angle |
| CN109610021A (en) * | 2019-01-22 | 2019-04-12 | 嘉兴学院 | A kind of preparation method and device of nanofiber yarn |
| CN109825885A (en) * | 2019-03-22 | 2019-05-31 | 大连民族大学 | Experimental method of electrospinning based on controllable complex electric field |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111663189A (en) | 2020-09-15 |
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Effective date of registration: 20210726 Address after: 215000 Sheng Ze Zhen Qiao Nan Cun, Wujiang District, Suzhou City, Jiangsu Province Applicant after: Wujiang Kaichang Textile Co.,Ltd. Address before: 215228 1539 Yuanyuan Road, Shengze Town, Wujiang District, Suzhou City, Jiangsu Province Applicant before: Suzhou Youbai Textile Co.,Ltd. |
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Effective date of registration: 20230720 Address after: Group 10, Fucun Village, Taoyuan Town, Wujiang, Suzhou City, Jiangsu Province, 215235 Patentee after: JIANGSU HOUSE HAIR TEXTILE LIMITED COMPANY OF SCIENCE AND TECHNOLOGY Address before: 215000 Sheng Ze Zhen Qiao Nan Cun, Wujiang District, Suzhou City, Jiangsu Province Patentee before: Wujiang Kaichang Textile Co.,Ltd. |
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Granted publication date: 20210813 |