CN110983705A - Weaving sanding machine device - Google Patents
Weaving sanding machine device Download PDFInfo
- Publication number
- CN110983705A CN110983705A CN201911413049.9A CN201911413049A CN110983705A CN 110983705 A CN110983705 A CN 110983705A CN 201911413049 A CN201911413049 A CN 201911413049A CN 110983705 A CN110983705 A CN 110983705A
- Authority
- CN
- China
- Prior art keywords
- roller
- textile
- sanding
- frame body
- fixing seat
- 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.)
- Withdrawn
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C11/00—Teasing, napping or otherwise roughening or raising pile of textile fabrics
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention relates to the technical field of textiles and discloses a textile sanding machine device which comprises a frame body, wherein a fourth fixing seat is arranged in the middle of the lower surface of the frame body, the upper portion of the fourth fixing seat is rotatably connected with a sanding roller, first fixing seats are arranged on the lower portions of the left side wall and the right side wall of the frame body, the middle portion of each first fixing seat is rotatably connected with a supporting roller, first guide rods are arranged on the left side and the right side of the upper surface of the frame body, the middle portion of each first guide rod is slidably connected with a transverse plate, fixing plates are arranged at the left end and the right end of each transverse plate, second fixing seats are arranged on the front side and the rear side of each fixing plate, the lower. The invention is suitable for a textile sanding machine device, and the lead screw is arranged to drive the second compression roller to move up and down, so that the length of the cloth wrapped outside the sanding roller is changed, and the sanding strength of the sanding roller on the surface of the cloth can be freely controlled.
Description
Technical Field
The invention relates to the technical field of spinning, in particular to a spinning sanding machine device.
Background
The sanding is a process in the textile industry, a layer of fabric with a short fluff layer feeling is formed on the surface of the fabric through the friction action of a sanding machine and a diamond-like sand leather, the original characteristics are kept, a new style is given to the fabric, the heat retention property and the softness are increased, the fabric is thick, soft and soft, the texture is rich, the fabric has the characteristic of no fading, the color is ever new, and the fabric is suitable for winter heat retention products and products used next to the skin.
Need carry out the sanding to the surface of cloth after cloth processing is accomplished, traditional processing mode is the processing through artifical sanding, and whole processing is consuming time longer to the sanding degree of different positions is different, and it is relatively poor to lead to final finished product effect, consequently needs the relevant sanding device of design to carry out the sanding to the cloth.
Chinese patent (publication number: CN 209816493U) discloses a textile sanding machine device, which relates to the field of textile equipment and comprises a box body, a feed inlet positioned on the left side of the box body and a discharge outlet positioned on the right side of the box body, wherein a sanding roller is arranged inside the box body, a threaded rod is arranged inside the box body, a motor is arranged on the right side of the box body, a rotating shaft of the motor is in transmission connection with the threaded rod, and a moving mechanism is arranged on the threaded rod. This weaving sanding machine device, be provided with two moving mechanism through the box, driving motor, can drive the threaded rod and rotate, thereby can drive the slide bar and remove right left on the threaded rod, can make the sanding cylinder remove right left, grind on the cloth, thereby can carry out the work of sanding to the cloth both sides simultaneously, the effectual work efficiency who accelerates the sanding of cloth, it is neat fine and close to make the cloth fluff, fine hair distributes evenly, the processingquality of cloth has been improved, but the device's sanding effect can't freely be adjusted, consequently, need improve the device.
Disclosure of Invention
The present invention provides a textile roughening machine which solves the problems set forth in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a weaving sanding machine device, includes the framework, and the lower surface middle part of framework is equipped with the fourth fixing base, and the upper portion of fourth fixing base is rotated and is connected the sanding roller, lateral wall lower part is equipped with first fixing base about the framework, and the middle part of first fixing base is rotated and is connected the backing roll, the upper surface left and right sides of framework is equipped with first guide bar, and the middle part sliding connection diaphragm of first guide bar is equipped with the fixed plate at both ends about the diaphragm, and both sides are equipped with the second fixing base around the fixed plate, and the lower part of second fixing base is rotated and is connected first compression roller, the middle part of the upper surface middle part threaded connection lead screw of framework, the lifter plate is connected to the lower extreme of lead screw, and the lower surface left and right sides of lifter plate is equipped.
As a preferred technical scheme of the invention, the upper end of the first guide rod is provided with a limiting block, and a spring is arranged between the limiting block and the transverse plate.
As a preferable technical solution of the present invention, the spring is sleeved outside the first guide rod.
As a preferable technical solution of the present invention, a first driving motor is disposed at a lower portion of the fourth fixing seat, an output shaft of the first driving motor is fixedly connected to a first belt wheel, the first belt wheel is connected to a second belt wheel through a first belt, and the second belt wheel is coaxially connected to the sanding roller.
As a preferable technical solution of the present invention, the left and right sides of the upper surface of the lifting plate are provided with second guide rods, and the middle parts of the second guide rods are slidably connected to the upper surface of the frame body.
As a preferable technical scheme of the invention, the upper end of the screw rod is provided with a rotating wheel.
As a preferable technical scheme of the invention, the middle parts of the left side wall and the right side wall of the frame body are provided with relief ports.
As a preferred technical solution of the present invention, a motor fixing seat is disposed at a lower portion of a right side wall of the frame, an upper portion of the motor fixing seat is fixedly connected to a second driving motor, an output shaft of the second driving motor is fixedly connected to a third belt pulley, the third belt pulley is connected to a fourth belt pulley through a second belt, and the fourth belt pulley is coaxially connected to the right side support roller.
According to a preferable technical scheme of the invention, the supporting roller and the first pressing roller are both provided with anti-skid rubber on the outer part.
The invention has the following advantages:
the invention is suitable for a textile sanding machine, the transverse plate is arranged to drive the first compression rollers on the left side and the right side to move up and down, so that cloth is more convenient and fast in the clamping process, the lead screw is arranged to drive the second compression roller to move up and down, so that the length of the cloth wrapped outside the sanding roller is changed, the sanding strength of the sanding roller on the surface of the cloth can be freely controlled, the setting of processing parameters is convenient, the whole device is simple to operate and convenient to control, the sanding effect on the cloth is good, and the device is suitable for popularization and use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a textile sanding machine.
Fig. 2 is a front view of a textile sanding apparatus.
Fig. 3 is a partially enlarged schematic view of a in fig. 1.
In the figure: 1. a frame body; 2. a support roller; 3. a first fixed seat; 4. a let position port; 5. a first press roll; 6. a second fixed seat; 7. a fixing plate; 8. a transverse plate; 9. a first guide bar; 10. a spring; 11. a limiting block; 12. a second press roll; 13. a third fixed seat; 14. a second guide bar; 15. a screw rod; 16. a rotating wheel; 17. a first drive motor; 18. a fourth fixed seat; 19. a first pulley; 20. a first belt; 21. a second pulley; 22. grinding a roughing roller; 23. a motor fixing seat; 24. a third belt pulley; 25. a second belt; 26. a second drive motor; 27. a fourth pulley; 28. a lifting plate.
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 one
Referring to fig. 1-3, a textile sanding machine device includes a frame 1, a relief opening 4 is disposed in the middle of the left and right side walls of the frame 1, a fourth fixing seat 18 is disposed in the middle of the lower surface of the frame 1, the upper portion of the fourth fixing seat 18 is rotatably connected to a sanding roller 22, a first driving motor 17 is disposed at the lower portion of the fourth fixing seat 18, an output shaft of the first driving motor 17 is fixedly connected to a first belt pulley 19, the first belt pulley 19 is connected to a second belt pulley 21 through a first belt 20, and the second belt pulley 21 is coaxially connected to the sanding roller 22.
The utility model discloses a press roll fixing device, including framework 1, lateral wall lower part is equipped with first fixing base 3 about framework 1, and the middle part of first fixing base 3 is rotated and is connected backing roll 2, the upper surface left and right sides of framework 1 is equipped with first guide bar 9, and the middle part sliding connection diaphragm 8 of first guide bar 9, both ends are equipped with fixed plate 7 about diaphragm 8, and both sides are equipped with second fixing base 6 around fixed plate 7, and the lower part of second fixing base 6 is rotated and is connected first compression roller 5, and the upper end of first guide bar 9 is equipped with stopper 11, is equipped with spring 10 between stopper 11 and the diaphragm 8, and first guide bar 9 is outside to spring 10 cover is located.
The middle part of the upper surface of the frame body 1 is in threaded connection with the middle part of the screw rod 15, the lower end of the screw rod 15 is connected with the lifting plate 28, the left side and the right side of the lower surface of the lifting plate 28 are provided with third fixing seats 13, the lower parts of the third fixing seats 13 are rotatably connected with the second pressing roller 12, the left side and the right side of the upper surface of the lifting plate 28 are provided with second guide rods 14, and the middle part of each second guide rod 14 is in sliding connection with the upper surface of the frame. The upper end of the screw rod 15 is provided with a rotating wheel 16.
The lower part of the right side wall of the frame body 1 is provided with a motor fixing seat 23, the upper part of the motor fixing seat 23 is fixedly connected with a second driving motor 26, an output shaft of the second driving motor 26 is fixedly connected with a third belt wheel 24, the third belt wheel 24 is connected with a fourth belt wheel 27 through a second belt 25, and the fourth belt wheel 27 is coaxially connected with the right side supporting roller 2.
Example two
The utility model provides a weaving sanding machine device, includes framework 1, and framework 1 controls lateral wall middle part and is equipped with lets a mouthful 4, and framework 1's lower surface middle part is equipped with fourth fixing base 18, and the upper portion of fourth fixing base 18 is rotated and is connected sanding roller 22, and the lower part of fourth fixing base 18 is equipped with first driving motor 17, the first band pulley 19 of output shaft fixed connection of first driving motor 17, and first band pulley 19 passes through first belt 20 and connects second band pulley 21, and second band pulley 21 coaxial coupling sanding roller 22.
The utility model discloses a press roll fixing device, including framework 1, lateral wall lower part is equipped with first fixing base 3 about framework 1, and the middle part of first fixing base 3 is rotated and is connected backing roll 2, the upper surface left and right sides of framework 1 is equipped with first guide bar 9, and the middle part sliding connection diaphragm 8 of first guide bar 9, both ends are equipped with fixed plate 7 about diaphragm 8, and both sides are equipped with second fixing base 6 around fixed plate 7, and the lower part of second fixing base 6 is rotated and is connected first compression roller 5, and the upper end of first guide bar 9 is equipped with stopper 11, is equipped with spring 10 between stopper 11 and the diaphragm 8, and first guide bar 9 is outside to spring 10 cover is located.
The middle part of the upper surface of the frame body 1 is in threaded connection with the middle part of the screw rod 15, the lower end of the screw rod 15 is connected with the lifting plate 28, the left side and the right side of the lower surface of the lifting plate 28 are provided with third fixing seats 13, the lower parts of the third fixing seats 13 are rotatably connected with the second pressing roller 12, the left side and the right side of the upper surface of the lifting plate 28 are provided with second guide rods 14, and the middle part of each second guide rod 14 is in sliding connection with the upper surface of the frame. The upper end of the screw rod 15 is provided with a rotating wheel 16.
The lower part of the right side wall of the frame body 1 is provided with a motor fixing seat 23, the upper part of the motor fixing seat 23 is fixedly connected with a second driving motor 26, an output shaft of the second driving motor 26 is fixedly connected with a third belt wheel 24, the third belt wheel 24 is connected with a fourth belt wheel 27 through a second belt 25, and the fourth belt wheel 27 is coaxially connected with the right side supporting roller 2. And anti-skid rubber is arranged outside the supporting roller 2 and the first pressing roller 5. In order to improve the frictional force between backing roll 2 and first compression roller 5 and the cloth, prevent that the cloth phenomenon of skidding from appearing in the in-process of conveying, all set up anti-skidding rubber in backing roll 2 and first compression roller 5's outside, improve frictional force to make this device can be normal with the cloth from the removal of left hand right hand.
In the implementation process of the invention, an operator firstly holds the transverse plate 8, pulls the transverse plate 8 upwards, at the same time, the transverse plate 8 drives the second fixed seat 6 to move upwards through the fixed plate 7, so that the first press roller 5 moves upwards, at the same time, the first press roller 5 and the supporting roller 2 are separated, the free end of the cloth passes through the space between the first press roller 5 on the left side and the supporting roller 2, and the free end of the cloth is inserted into the position-giving opening 4 on the left side, the free end of the cloth passes through the lower part of the second press roller 12 on the left side, the upper part of the sanding roller 22 and the lower part of the second press roller 12 on the right side, and the free end of the cloth passes through the position-giving opening 4 on the right side of the frame body 1, at the same time, the transverse plate 8 is loosened, under the double effects of the spring 10 and gravity, the first press roller 5 and the supporting roller 2 clamp the left and right ends of the, therefore, the cloth moves from left to right, the first driving motor 17 is started, the first driving motor 17 drives the sanding roller 22 to rotate through belt transmission, the sanding roller 22 performs sanding processing on the lower portion of the cloth, the rotating wheel 16 is rotated, the rotating wheel 16 drives the screw rod 15 to rotate, the screw rod 15 drives the lifting plate 28 to move up and down, the height of the second pressing roller 12 is controlled through the lifting plate 28, the length of the cloth wrapped outside the sanding roller 22 is changed, and the sanding strength of the sanding roller 22 on the cloth is changed; the invention is suitable for a textile sanding machine, the transverse plate 8 is arranged to drive the first compression roller 5 on the left side and the first compression roller 5 on the right side to move up and down, so that cloth is more convenient and fast in the clamping process, the lead screw 15 is arranged to drive the second compression roller 12 to move up and down, so that the length of the cloth wrapped outside the sanding roller 22 is changed, the sanding strength of the sanding roller 22 on the surface of the cloth can be freely controlled, the setting of processing parameters is convenient, the whole device is simple to operate, the control is convenient, the sanding effect on the cloth is good, and the device is suitable for popularization and use.
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.
Claims (9)
1. A textile sanding machine device comprises a frame body (1), wherein a fourth fixing seat (18) is arranged in the middle of the lower surface of the frame body (1), the upper portion of the fourth fixing seat (18) is rotatably connected with a sanding roller (22), the textile sanding machine device is characterized in that a first fixing seat (3) is arranged on the lower portion of the left side wall and the right side wall of the frame body (1), a supporting roller (2) is rotatably connected with the middle portion of the first fixing seat (3), first guide rods (9) are arranged on the left side and the right side of the upper surface of the frame body (1), the middle portion of each first guide rod (9) is slidably connected with a transverse plate (8), fixing plates (7) are arranged at the left end and the right end of each transverse plate (8), second fixing seats (6) are arranged on the front side and the rear side of each fixing plate (7), the lower portion of each second fixing seat (6) is rotatably connected with a first press roller (5), the, the left side and the right side of the lower surface of the lifting plate (28) are provided with third fixing seats (13), and the lower parts of the third fixing seats (13) are rotatably connected with second pressing rollers (12).
2. A textile roughening apparatus as claimed in claim 1, characterized in that a stop (11) is provided at the upper end of the first guide rod (9), and a spring (10) is provided between the stop (11) and the transverse plate (8).
3. A textile roughening apparatus as claimed in claim 2, characterized in that the spring (10) is arranged outside the first guide rod (9).
4. A textile roughening apparatus as claimed in claim 1, characterized in that a first drive motor (17) is provided at a lower portion of said fourth fixed base (18), an output shaft of said first drive motor (17) is fixedly connected to a first belt wheel (19), said first belt wheel (19) is connected to a second belt wheel (21) via a first belt (20), and said second belt wheel (21) is coaxially connected to a roughening roller (22).
5. A textile roughening apparatus according to claim 1, wherein second guide rods (14) are provided on the left and right sides of the upper surface of the lifting plate (28), and the middle portion of the second guide rods (14) is slidably connected to the upper surface of the frame body (1).
6. A textile roughening apparatus as claimed in claim 1, characterized in that the upper end of the screw (15) is provided with a turning wheel (16).
7. A textile sanding machine according to claim 1, characterized in that the frame (1) has a relief opening (4) in the middle of the left and right side walls.
8. A textile sanding machine according to claim 1 or 4, characterized in that a motor fixing seat (23) is arranged at the lower part of the right side wall of the frame body (1), a second driving motor (26) is fixedly connected to the upper part of the motor fixing seat (23), the output shaft of the second driving motor (26) is fixedly connected with a third belt wheel (24), the third belt wheel (24) is connected with a fourth belt wheel (27) through a second belt (25), and the fourth belt wheel (27) is coaxially connected with the right side support roller (2).
9. A textile roughening apparatus as claimed in claim 1, characterized in that the supporting roller (2) and the first pressure roller (5) are provided externally with an anti-slip rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911413049.9A CN110983705A (en) | 2019-12-31 | 2019-12-31 | Weaving sanding machine device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911413049.9A CN110983705A (en) | 2019-12-31 | 2019-12-31 | Weaving sanding machine device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110983705A true CN110983705A (en) | 2020-04-10 |
Family
ID=70079797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911413049.9A Withdrawn CN110983705A (en) | 2019-12-31 | 2019-12-31 | Weaving sanding machine device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110983705A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112938388A (en) * | 2021-01-27 | 2021-06-11 | 宁夏天地西北煤机有限公司 | Traction device |
| CN113481687A (en) * | 2021-07-27 | 2021-10-08 | 浙江万福染整有限公司 | Weft knitting super-soft napping treatment process and device |
| CN114214809A (en) * | 2021-12-09 | 2022-03-22 | 江苏华一机械有限公司 | Cloth sanding machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012112066A (en) * | 2010-11-24 | 2012-06-14 | Seiko Epson Corp | Ink-jet printing device and method for producing printed textile product by ink-jet printing |
| CN107287783A (en) * | 2017-07-14 | 2017-10-24 | 湖州南浔贵丰纺织有限公司 | One kind weaving cloth production spinning woven cloth washing device |
| CN207419067U (en) * | 2017-11-13 | 2018-05-29 | 海宁路宝经编有限公司 | A kind of roughing-up machine for fabric |
| CN208685247U (en) * | 2018-07-14 | 2019-04-02 | 赵超 | A kind of Internet of Things weaving roughing-up machine |
| CN110306278A (en) * | 2019-04-28 | 2019-10-08 | 苏州爱默生纺织科技有限公司 | Preparation process of suede fabric |
| CN209816493U (en) * | 2018-11-15 | 2019-12-20 | 浙江工业职业技术学院 | Textile sanding machine |
-
2019
- 2019-12-31 CN CN201911413049.9A patent/CN110983705A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012112066A (en) * | 2010-11-24 | 2012-06-14 | Seiko Epson Corp | Ink-jet printing device and method for producing printed textile product by ink-jet printing |
| CN107287783A (en) * | 2017-07-14 | 2017-10-24 | 湖州南浔贵丰纺织有限公司 | One kind weaving cloth production spinning woven cloth washing device |
| CN207419067U (en) * | 2017-11-13 | 2018-05-29 | 海宁路宝经编有限公司 | A kind of roughing-up machine for fabric |
| CN208685247U (en) * | 2018-07-14 | 2019-04-02 | 赵超 | A kind of Internet of Things weaving roughing-up machine |
| CN209816493U (en) * | 2018-11-15 | 2019-12-20 | 浙江工业职业技术学院 | Textile sanding machine |
| CN110306278A (en) * | 2019-04-28 | 2019-10-08 | 苏州爱默生纺织科技有限公司 | Preparation process of suede fabric |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112938388A (en) * | 2021-01-27 | 2021-06-11 | 宁夏天地西北煤机有限公司 | Traction device |
| CN113481687A (en) * | 2021-07-27 | 2021-10-08 | 浙江万福染整有限公司 | Weft knitting super-soft napping treatment process and device |
| CN114214809A (en) * | 2021-12-09 | 2022-03-22 | 江苏华一机械有限公司 | Cloth sanding machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111648009B (en) | Textile machine discharging mechanism with cutting structure | |
| CN208829952U (en) | A kind of weaving sanding device with dust removing effects | |
| CN212077372U (en) | Pressing mechanism of sanding machine | |
| CN212051823U (en) | Fixed knitting machine thread passing device for spinning | |
| CN110735008B (en) | Surface polishing device for luggage leather | |
| CN214244938U (en) | A positive and negative double-sided fine twelve-roll vertical grinding machine | |
| CN221297242U (en) | Flatcar sewing machine | |
| CN205471866U (en) | Automatic opposite side rolling machine of flocking cloth | |
| CN205035643U (en) | A grind hair finishing device for clothing production | |
| CN215201062U (en) | Multi-station tire polishing device for tire polisher | |
| CN112064262A (en) | Garment materials printing device | |
| CN209759803U (en) | Cloth leveling device | |
| CN212655999U (en) | A high-efficiency combined sanding machine | |
| CN211446269U (en) | Sanding device with regulatory function | |
| CN209618510U (en) | A kind of stretch fabric press polish plaiting apparatus | |
| CN222908208U (en) | A kind of sanded yarn drafting and winding device | |
| CN203451851U (en) | Sueding machine with double sueding areas | |
| CN217104380U (en) | Decreasing device of sanding machine | |
| GB656686A (en) | Improvements in method and apparatus for smoothing and polishing workpieces | |
| CN221566545U (en) | Adjustable multiple weaving roughening machine | |
| CN222878201U (en) | A strong twisting device for brushed yarn | |
| CN214572904U (en) | Garment materials production is with fixing device that flattens | |
| CN113862943A (en) | Garment processing method | |
| CN214937562U (en) | A polishing device for leather processing | |
| CN222289860U (en) | Metal cotton rope twisting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200410 |
|
| WW01 | Invention patent application withdrawn after publication |