CN218024711U - Yarn tensioning structure of spinning machine - Google Patents
Yarn tensioning structure of spinning machine Download PDFInfo
- Publication number
- CN218024711U CN218024711U CN202222175342.XU CN202222175342U CN218024711U CN 218024711 U CN218024711 U CN 218024711U CN 202222175342 U CN202222175342 U CN 202222175342U CN 218024711 U CN218024711 U CN 218024711U
- Authority
- CN
- China
- Prior art keywords
- wheel
- tensioning
- wire
- yarn
- fixing
- 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
- 238000009987 spinning Methods 0.000 title claims abstract description 31
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims 3
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000007383 open-end spinning Methods 0.000 description 4
- 238000009960 carding Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Images
Landscapes
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The utility model belongs to the technical field of spinning machines, in particular to a yarn tensioning structure of a spinning machine, which comprises a fixed plate, wherein a tensioning assembly is also arranged on the fixed plate; the tensioning assembly comprises a first wire wheel, a connecting plate, a fixing block, a fixing seat, a connecting rod, a rotating rod, a threaded shaft, a sliding block, a guide rod, a rotating seat, a tensioning wheel and a first spring, wherein the fixing plate is rotatably connected with the first wire wheel through a first rotating shaft, the tensioning assembly is arranged on the device, a user can effectively tension the yarn through the tensioning assembly, the problem that the yarn is loose can be avoided, the problem that the yarn is broken easily due to the fact that some devices are used for tensioning the yarn can be avoided, the yarn arranging assembly is added to the mechanism, the yarn to be passed through the wire wheel can be combed through the two wire arranging wheels, and the problem that the yarn is bent is avoided.
Description
Technical Field
The utility model belongs to the technical field of spinning machine, concretely relates to spinning machine yarn tensioning texture.
Background
The rotor spinning machine has the characteristics of high spinning speed, large package capacity, better spinning suitability and capability of spinning high-grade and low-grade raw materials at the same time, and becomes a spinning form with the most mature technology, the widest application range and higher economy in a novel spinning technology, tension wheels at the yarn outlet positions of the existing rotor spinning machine are difficult to realize effective tension adjustment, and the convenience for manually adjusting the tension force by personnel is poorer;
via review publication (bulletin) number: CN 2168352U discloses a yarn outlet of a rotor spinning machine spinning unit with a tension adjusting function, which in the technology discloses that the yarn outlet comprises a spinning machine body, the surface of the spinning machine body is fixedly connected with a yarn outlet head, the inside of the yarn outlet head is movably connected with yarns, the upper part of the spinning machine body is symmetrically and rotatably connected with godet wheels, and the surface of the spinning machine body is provided with a mounting groove. After the adjusting rod is rotated to be in threaded connection with the corresponding base plate, yarns penetrate between the two yarn guide wheels and the tensioning wheel, then the threaded connection between the adjusting rod and the base plate is released, the second spring is compressed to drive the sliding sleeve to slide on the surface of the sliding rod, the yarns are tensioned, and when the yarns are loosened, the second spring is compressed to drive the sliding sleeve to move to realize the automatic tensioning effect; when the yarn is too loose or broken, the second spring is compressed to drive the sliding sleeve to move to an extreme position, so that the sliding sleeve is pressed on the surface of the alarm to give an alarm, the operator is promoted to handle faults, and the production progress is prevented from being influenced;
although the yarn can be tensioned by matching the sliding sleeve, the compression second spring, the tensioning wheel and other components, the mode of sliding the sliding sleeve on the surface of the sliding rod by compressing the second spring can easily cause the tension of the yarn to be over-tight, cause the yarn to be broken, and easily influence the production progress;
in order to solve the problems, the application provides a yarn tensioning structure of a spinning machine.
SUMMERY OF THE UTILITY MODEL
To solve the problems set forth in the background art described above. The utility model provides a spinning machine yarn tensioning texture has and to make the regulation to yarn tensioning degree more convenient to avoid the yarn characteristics of lax influence production.
In order to achieve the above purpose, the utility model provides a following technical scheme: a yarn tensioning structure of a spinning machine comprises a fixing plate, wherein a tensioning assembly is further mounted on the fixing plate;
the tensioning assembly comprises a first wire wheel, a connecting plate, a fixed block, a fixed seat, a connecting rod, a rotating rod, a threaded shaft, a sliding block, a guide rod, a rotating seat and a tensioning wheel, wherein the fixed plate is connected with the first wire wheel in a rotating mode through a first rotating shaft, the fixed plate is fixedly connected with the connecting plate, the connecting plate is located on the left side of the top of the first wire wheel, two fixed blocks which are arranged symmetrically are arranged on the upper surface of the connecting plate, the fixed block is fixedly connected with the fixed seat, the fixed seat is connected with the fixed seat in a rotating mode through a rotating shaft, the two ends of the rotating rod are connected with the threaded shaft through a rotating shaft, the connecting block is connected with the rotating seat in a rotating mode through a second rotating shaft, one end of a first spring is installed on the outer side of the tensioning wheel through a bearing seat, the other end of the first spring is installed on the outer side of the fixed plate, the fixed block is connected with the threaded shaft through a threaded sleeve, the fixed block is connected with the sliding block through a rotating shaft, the guide rod is connected with one end of the guide rod through a rotating shaft.
As the utility model relates to a spinning machine yarn tension structure is preferred, the tensioning subassembly still includes the second wire wheel, the fixed plate rotates through the third pivot to be connected with the second wire wheel, the second wire wheel is located the below right side of take-up pulley.
As the utility model relates to a spinning machine yarn tension structure is preferred, the tensioning subassembly still includes the third wire wheel, the fixed plate rotates through the fourth pivot to be connected with the third wire wheel, the third wire wheel is located the top right side of second wire wheel.
As the utility model relates to a spinning machine yarn tension structure is preferred, the tensioning subassembly still includes the slide bar, the slider is kept away from one side fixedly connected with of threaded spindle the slide bar, the slide bar runs through and is located the opposite side the fixed block, the slide bar is lieing in the opposite side slide in the through-hole that the fixed block was seted up.
As the utility model relates to a preferred of spinning machine yarn tension structure still includes the reason line subassembly, the reason line subassembly includes mounting, dead lever, movable block, reason line wheel and second spring, fixed plate fixedly connected with the mounting, the mounting is located the left side of first wire wheel, install two on the mounting and be bilateral symmetry form range the dead lever, two are upper and lower symmetry form range the movable block through two through-holes seted up with dead lever sliding connection, the movable block is kept away from one side of mounting is rotated through fifth pivot and is connected with the reason line wheel, the outside cover of dead lever is equipped with the second spring, the one end of second spring with mounting fixed connection, the other end of second spring with movable block fixed connection.
Compared with the prior art, the beneficial effects of the utility model are that:
the tensioning assembly is arranged on the device, a user can effectively tension the yarn through the tensioning assembly, the problem that the yarn is loose can be avoided, the problem that the yarn is broken easily when the yarn is tensioned by some devices can be avoided, the yarn arranging assembly is added to the mechanism, the yarn to be guided through the guide wire wheel can be combed through the two wire arranging wheels, and the problem that the yarn is bent is avoided.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the tension assembly of the present invention;
FIG. 3 is a schematic structural view of the slider of the present invention;
fig. 4 is a schematic structural view of the wire management assembly of the present invention.
In the figure:
1. a fixing plate;
2. a tension assembly; 21. a first wire guide wheel; 22. a connecting plate; 23. a fixed block; 24. a fixed seat; 25. a connecting rod; 26. rotating the rod; 27. a threaded shaft; 28. a slider; 29. a guide bar; 210. a rotating seat; 211. a tension wheel; 212. a second wire guide wheel; 213. a third wire guide wheel; 214. a slide bar; 215. a first spring;
3. a wire arranging assembly; 31. a fixing member; 32. a fixing rod; 33. a moving block; 34. a wire arranging wheel; 35. a second spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1:
a yarn tensioning structure of a spinning machine comprises a fixing plate 1.
In this embodiment: the yarn tension wheel at the yarn outlet position of the existing partial rotor spinning machine is difficult to effectively adjust tension, the convenience for manually adjusting tension is poor, the tension degree is inconvenient to adjust by some tensioning devices, and once the yarn is tensioned, the problem of breakage is easy to occur, so that normal production is influenced.
It should be noted that: the fixed plate 1 is installed at the yarn outlet position of the spinning machine.
Further, the following steps:
a tension assembly 2 is also mounted on the fixed plate 1.
Further, the following steps:
as shown in fig. 1, 2 and 3:
in combination with the above: the tensioning assembly 2 comprises a first wire guide wheel 21, a connecting plate 22, a fixed block 23, a fixed seat 24, a connecting rod 25, a rotating rod 26, a threaded shaft 27, a slider 28, a guide rod 29, a rotating seat 210 and a tensioning wheel 211, wherein the fixed plate 1 is rotatably connected with the first wire guide wheel 21 through a first rotating shaft, the fixed plate 1 is fixedly connected with the connecting plate 22, the connecting plate 22 is positioned on the left side above the first wire guide wheel 21, two symmetrically-arranged fixed blocks 23 are mounted on the upper surface of the connecting plate 22, the fixed seat 24 is fixedly connected with the upper surface of the fixed block 23, the fixed seat 24 is rotatably connected with the connecting rod 25 through a rotating shaft, two ends of the rotating rod 26 are rotatably connected with the other end of the connecting rod 25 through a rotating shaft, the rotating seat 210 is fixedly connected with the upper surface of the connecting rod 25, the rotating seat 210 is rotatably connected with the tensioning wheel 211 through a second rotating shaft, one end of a first spring 215 is mounted on the outer side of the tensioning wheel 211 through a bearing seat, the other end of the first spring 215 is mounted on the outer side of the fixed plate 1, the fixed block 23 on one side is connected with the threaded shaft 27 through a threaded sleeve, the threaded shaft 27, the fixed block 27 is connected with the slider 28 through the bearing seat, the rotating seat 28, the slider 28 is connected with the outer side of the connecting plate 22 through the rotating shaft 29, one end of the rotating rod 28, one end of the rotating rod is connected with the guide rod 27 through the rotating shaft 29, and connected with the rotating shaft, and the guide rod 29, and the rotating shaft 27, and the rotating shaft is connected with the guide rod 29, and the rotating shaft 29, and the guide rod 29, and the rotating shaft is connected with the guide rod 26 through the rotating shaft 27.
In this embodiment: when the yarn tensioning device is used, the yarn passes through the groove of the first guide wheel 21, the yarn passes through the tensioning wheel 211, when the tensioning degree of the yarn needs to be adjusted, the yarn tensioning can be realized through the elastic force of the first spring 215, but the convenience for adjusting the elastic force degree of the first spring 215 is not high, over-tensioning is easy to occur, the yarn is broken, at the moment, the threaded shaft 27 can be driven to rotate through rotating the handle, the threaded shaft 27 drives the sliding block 28 to move through the screw sleeve, the sliding block 28 slides on the connecting plate 22, the sliding block 28 drives one end of the guide rod 29 to move, the other end of the guide rod 29 drives one end of the rotating rod 26 to move, the two ends of the rotating rod 26 are limited by the connection of the connecting rod 25, so that the position of the rotating seat 210 installed on the rotating rod 26 can be moved, so that the position of the tensioning wheel 211 installed on the rotating seat 210 can be moved, by moving the position of the tensioning wheel 211, the first spring 215 is driven to be stretched or compressed, thereby realizing the adjustment of the elastic force of the first spring 215, the adjustment of the tensioning wheel 211, the tensioning wheel 211 can be conveniently, the tensioning rod 211 can be moved through the adjustment, the adjustment of the tensioning wheel 211, and the guide rod 29 can be conveniently, and the tensioning degree of the tensioning wheel 26 can be adjusted through the adjustment, and the adjustment, so that the tensioning wheel 26 can be more directly adjusted by the tensioning wheel 211, and the tensioning wheel 26.
Further, the method comprises the following steps of;
in an alternative embodiment, the tensioning assembly 2 further comprises a second wire guide wheel 212, the fixing plate 1 is rotatably connected with the second wire guide wheel 212 through a third rotating shaft, and the second wire guide wheel 212 is located at the lower right side of the tensioning wheel 211.
In this embodiment: the yarn passing through the tension wheel 211 can be further limited by the second yarn guiding wheel 212, so that the yarn is further tensioned by the second yarn guiding wheel 212, and the tensioning effect is better.
Further, the method comprises the following steps of;
in an alternative embodiment, the tensioning assembly 2 further comprises a third wire guide wheel 213, the fixing plate 1 is rotatably connected with the third wire guide wheel 213 through a fourth rotating shaft, and the third wire guide wheel 213 is positioned at the upper right side of the second wire guide wheel 212.
In this embodiment: the yarn passing through the second guide wheel 212 can be restrained again by the third guide wheel 213, thereby further enhancing the tensioning effect.
It should be noted that: the first wire guiding wheel 21, the tensioning wheel 211, the second wire guiding wheel 212 and the third wire guiding wheel 213 are all provided with grooves for limiting the yarn.
Further, the method comprises the following steps of;
in an alternative embodiment, the tensioning assembly 2 further comprises a sliding rod 214, the sliding rod 214 is fixedly connected to one side of the sliding block 28 away from the threaded shaft 27, the sliding rod 214 penetrates through the fixing block 23 located on the other side, and the sliding rod 214 slides in a through hole formed in the fixing block 23 located on the other side.
In this embodiment: when the sliding block 28 moves, the sliding rod 214 installed on the sliding block 28 is driven to move, and the sliding rod 214 slides in the through hole of the fixed block 23, so that the sliding block 28 can move more stably.
As shown in fig. 4:
this spinning machine yarn tensioning texture, still include reason line subassembly 3, reason line subassembly 3 includes mounting 31, the dead lever 32, the movable block 33, reason line wheel 34 and second spring 35, 1 fixedly connected with mounting 31 of fixed plate, mounting 31 is located the left side of first wire wheel 21, install two dead levers 32 that are bilateral symmetry form and arrange on the mounting 31, two are two through-holes and the dead lever 32 sliding connection of upper and lower symmetry form range of movable block 33 through seting up, one side that the mounting 31 was kept away from to movable block 33 is rotated through the fifth pivot and is connected with reason line wheel 34, the outside cover of dead lever 32 is equipped with second spring 35, the one end and the mounting 31 fixed connection of second spring 35, the other end and the movable block 33 fixed connection of second spring 35.
In this embodiment: before the yarn passes through first wire wheel 21, through between two wire arrangement wheels 34, through the carding of two wire arrangement wheels 34, can make the yarn more level and more smooth, avoid the yarn to buckle, and connect the movable block 33 of installation wire arrangement wheel 34 through second spring 35, can utilize the elasticity of second spring 35, cushion movable block 33 to installing on dead lever 32, when thicker yarn passes through, the yarn can make two wire arrangement wheels 34 upwards or move down respectively, second spring 35 cushions movable block 33 this moment, can realize the effective laminating to thicker yarn, make the effect of carding better.
The working process comprises the following steps: the yarn passes through the groove of the first yarn guide wheel 21, when passing through the tension wheel 211, the first spring 215 can tension the yarn through its own elastic force, but when the elastic force of the first spring 215 is adjusted correspondingly according to the slack degree of the yarn, the convenience is not very high, at this time, the sliding block 28 is driven to move by rotating the threaded shaft 27, the sliding block 28 slides on the connecting plate 22, the sliding block 28 drives the sliding rod 214 to move, the sliding rod 214 slides in the through hole of the fixing block 23, so that the movement of the sliding block 28 is more stable, the sliding block 28 drives one end of the guide rod 29 to move, the other end of the guide rod 29 drives one end of the rotating rod 26 to move, the position of the tension wheel 211 installed on the rotating seat 210 can be moved, the position of the tension wheel 211 is moved, the first spring 215 installed on the tension wheel is driven to stretch or compress by moving the position of the tension wheel 211, thereby realizing the elastic force adjustment of the first spring 215, the yarn tension adjustment by adjusting the elastic force of the first spring 215 can better realize the yarn tension of the yarn, then the yarn can pass through the two leveling wheels 34 before passing through the second and third guide wheel 213, the yarn combing wheel 21 can be more smoothly.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A spinning machine yarn tensioning texture, includes fixed plate (1), its characterized in that: the fixed plate (1) is also provided with a tensioning assembly (2);
tensioning element (2) include first wire wheel (21), connecting plate (22), fixed block (23), fixing base (24), connecting rod (25), dwang (26), threaded shaft (27), slider (28), guide arm (29), rotate seat (210), take-up pulley (211) and first spring (215), fixed plate (1) rotates through first pivot to be connected with first wire wheel (21), fixed plate (1) fixed connection has connecting plate (22), connecting plate (22) are located the top left side of first wire wheel (21), the last surface mounting of connecting plate (22) has two to be symmetrical form and arranges fixed block (23), the last fixed surface of fixed block (23) is connected with fixing base (24), fixing base (24) rotate through pivot spare and are connected with connecting rod (25), the both ends of dwang (26) rotate through pivot spare with the other end of connecting rod (25) to be connected, the last fixed surface of connecting rod (25) is connected with rotate seat (210), it rotates through the second pivot to rotate seat (210) to be connected with the one end of take-up pulley (211), the one end of first spring (215) is installed at the outside of first spring (215), take-up pulley (215) the fixed plate (1) is installed through first spring (1), and take-up pulley (210) the last fixed plate (1) is connected with the upper surface of fixed plate (24), the other end of take-up pulley (21), the pivot spare The outside, fixed block (23) is connected with through the swivel nut threaded shaft (27), running through of threaded shaft (27) fixed block (23), the end of threaded shaft (27) is rotated through the bearing frame and is connected with slider (28), slider (28) with connecting plate (22) contact is connected, the outside of slider (28) is rotated through pivot spare and is connected with guide arm (29), guide arm (29) through pivot spare with dwang (26) are close to the one end rotation of threaded shaft (27) is connected.
2. The spinning machine yarn tensioning construction according to claim 1, characterized in that: the tensioning assembly (2) further comprises a second wire guiding wheel (212), the fixing plate (1) is rotatably connected with the second wire guiding wheel (212) through a third rotating shaft, and the second wire guiding wheel (212) is located on the right side below the tensioning wheel (211).
3. The spinning machine yarn tensioning construction according to claim 2, characterized in that: the tensioning assembly (2) further comprises a third wire guide wheel (213), the fixing plate (1) is rotatably connected with the third wire guide wheel (213) through a fourth rotating shaft, and the third wire guide wheel (213) is located on the right side above the second wire guide wheel (212).
4. The spinning machine yarn tensioning construction according to claim 1, characterized in that: the tensioning assembly (2) further comprises a sliding rod (214), one side, far away from the threaded shaft (27), of the sliding block (28) is fixedly connected with the sliding rod (214), the sliding rod (214) penetrates through the fixing block (23) located on the other side, and the sliding rod (214) slides in a through hole formed in the fixing block (23) located on the other side.
5. The spinning machine yarn tensioning arrangement according to claim 1, wherein: the wire arranging device is characterized by further comprising a wire arranging assembly (3), wherein the wire arranging assembly (3) comprises a fixing piece (31), a fixing rod (32), a moving block (33), a wire arranging wheel (34) and a second spring (35), the fixing piece (1) is fixedly connected with the fixing piece (31), the fixing piece (31) is located on the left side of the first wire guiding wheel (21), the fixing piece (31) is provided with the two fixing rods (32) which are arranged in a bilateral symmetry mode, the two moving blocks (33) which are arranged in a vertical symmetry mode are connected with the fixing rod (32) in a sliding mode through two through holes, one side, far away from the fixing piece (31), of each moving block (33 is rotatably connected with the wire arranging wheel (34) through a fifth rotating shaft, the second spring (35) is sleeved on the outer side of the fixing rod (32), one end of the second spring (35) is fixedly connected with the fixing piece (31), and the other end of the second spring is fixedly connected with the moving block (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222175342.XU CN218024711U (en) | 2022-08-18 | 2022-08-18 | Yarn tensioning structure of spinning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222175342.XU CN218024711U (en) | 2022-08-18 | 2022-08-18 | Yarn tensioning structure of spinning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218024711U true CN218024711U (en) | 2022-12-13 |
Family
ID=84349533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222175342.XU Expired - Fee Related CN218024711U (en) | 2022-08-18 | 2022-08-18 | Yarn tensioning structure of spinning machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218024711U (en) |
-
2022
- 2022-08-18 CN CN202222175342.XU patent/CN218024711U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109693971B (en) | A wire device for spinning machine yarn | |
| CN211594585U (en) | Tension adjustable adjusting device | |
| CN218754233U (en) | Chemical fiber yarn tensioning mechanism | |
| CN218024711U (en) | Yarn tensioning structure of spinning machine | |
| CN215481497U (en) | A wire mechanism for fancy yarn | |
| CN213266842U (en) | High-efficient wire device of collective doffer | |
| CN213568899U (en) | Spinning elasticizer capable of easily adjusting tension | |
| CN111926421A (en) | A yarn direction collection device for weaving field | |
| CN112921468A (en) | Yarn sanding device of two-for-one twister | |
| CN221778052U (en) | False twisting setting machine capable of separating filaments | |
| CN112391708A (en) | Locking device for spinning spindle or twisting spindle | |
| CN220844865U (en) | Take-up machine with tension adjusting function | |
| CN215887394U (en) | Waxing device is used in full wool yarn production and processing | |
| CN216891388U (en) | Two-for-one twister with yarn antiwind function | |
| CN221543681U (en) | Tensioning device | |
| CN216272449U (en) | Yarn guide of textile machinery | |
| CN118563471B (en) | Multifunctional bag emptying machine | |
| CN221663127U (en) | Warp tension adjusting equipment | |
| CN219839804U (en) | Wool bucket stripping roller transmission mechanism of wool roving carding machine | |
| CN213140982U (en) | Module winding head | |
| CN209162305U (en) | A kind of spinning frame thread board structure | |
| CN218434223U (en) | Winding device of air textured yarn machine | |
| CN221837174U (en) | Yarn guiding device of spinning frame | |
| CN221191093U (en) | Spinning machine tension adjusting mechanism convenient to installation | |
| CN221522908U (en) | Main motor adjusting seat structure of short fiber two-for-one twister |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20221213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |