CN105671754A - Electromagnetic needle powder spraying device - Google Patents
Electromagnetic needle powder spraying device Download PDFInfo
- Publication number
- CN105671754A CN105671754A CN201610220897.8A CN201610220897A CN105671754A CN 105671754 A CN105671754 A CN 105671754A CN 201610220897 A CN201610220897 A CN 201610220897A CN 105671754 A CN105671754 A CN 105671754A
- Authority
- CN
- China
- Prior art keywords
- electromagnetic needle
- powder
- electromagnetic
- meal outlet
- dusts
- 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.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/34—Handling the weft between bulk storage and weft-inserting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
- B05B7/1481—Spray pistols or apparatus for discharging particulate material
- B05B7/1486—Spray pistols or apparatus for discharging particulate material for spraying particulate material in dry state
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
- Nozzles (AREA)
Abstract
The invention relates to the field of knitting equipment, in particular to an electromagnetic needle powder spraying device which comprises a powder spraying assembly arranged over an electromagnetic needle assembly.The electromagnetic needle powder spraying device is characterized in that the electromagnetic needle assembly comprises an electromagnetic needle which is axially and movably arranged in an electromagnetic field; the powder spraying assembly comprises a powder storage chamber, the bottom of the powder storage chamber is provided with a powder outlet which is communicated with an electromagnetic needle moving channel arranged in the electromagnetic needle assembly, and the lower end of the electromagnetic needle moving channel serves as the powder spraying end.According to the electromagnetic needle powder spraying device, a trace amount of atomized similar talcum powder is continuously sprayed on the surface of the electromagnetic needle in the knitting process, therefore, a layer of a powder film is formed between a wax-free superfine glass fiber and the electromagnetic needle, and adhesion of the glass fiber and the electromagnetic needle is prevented.After the device is adopted, starting can be smoothly achieved, the adhesion phenomenon of the glass fiber and the electromagnetic needle almost can be completely prevented, the knitting efficiency is greatly improved, and normal application of the wax-free fine-denier glass fiber is made possible.
Description
Technical field
The present invention relates to knitting equipment field, particularly relate to a kind of electromagnetic needle dusting device.
Background technology
Glass fibre fibre weaving industry, along with the progress of technology, is welcome by user without wax glass and super fine denier glass. But owing to glass to use wetting agent in molding, different can make glass surface with certain viscosity without wax infiltration formula, because of this viscosity, ultra-fine glass fibre can be sticked, bring difficulty to wefting insertion in weaving on the electromagnetic needle of weft accumulator, inefficiency is started shooting, it is impossible to normally weave.
Summary of the invention
In order to solve the problems referred to above, it is an object of the invention to provide a kind of electromagnetic needle dusting device, with the similar Pulvis Talci of microatomization in weaving process, be constantly sprayed on electromagnetic needle surface, make without there being one layer of powder film between wax superfine glass fiber and magnetic needle body, it is therefore prevented that glass and magnetic needle adhesion; After adopting this device, it is possible to start shooting smoothly, almost can being entirely prevented from glass and magnetic needle adhesion phenomenon, weaving efficiency obtains and greatly improves, and also makes to be possibly realized without wax fine-denier glass normal use.
In order to realize above-mentioned purpose, present invention employs following technical scheme:
A kind of electromagnetic needle dusting device, including the assembly that dusts being arranged on above electromagnetic needle assembly; It is characterized in that: described electromagnetic needle assembly includes moving axially the electromagnetic needle being arranged in electromagnetic field; The described assembly that dusts includes storage powder room, and storage is provided with meal outlet bottom powder room, and meal outlet communicates with the electromagnetic needle movable passageway in electromagnetic needle assembly, and electromagnetic needle movable passageway bottom is the end that dusts.
As preferably, described meal outlet communicates with the Upper passage mouth of electromagnetic needle movable passageway, adopts this structure, can realize above-mentioned purpose of dusting on the product structure simplified most.
As preferably, described meal outlet is communicated with the end that dusts of electromagnetic needle movable passageway by powder spout; Adopt this structure can realize the purpose dusted in electromagnetic needle surface, compared to the technical scheme communicated with the Upper passage mouth of electromagnetic needle movable passageway with meal outlet, this structure can be avoided using electromagnetic needle movable passageway as powder spout, thus the abrasion of electromagnetic needle can be reduced, extends its service life.
As preferably, described powder spout is to be made up of the pipeline of connection meal outlet and the end that dusts.
As preferably, described in dust end be provided with the parts that dust, the lower end of powder spout is connected to dusts on parts; The parts that dust are provided with central shaft hole, and along some linear passageway that central shaft hole circumference is dispersed. In the program, adopting the parts that dust of diverging that powder inside can be conducive to spray, the some linear passageway especially by periphery spray, and reduce the abrasion for electromagnetic needle shank of the powder within central shaft hole as much as possible.
As preferably, described powder spout is arranged in the housing sidewall of electromagnetic needle assembly; The meal outlet of storage powder room docks mutually with the upper end of powder spout, and the bottom of powder spout is docked mutually with the end that dusts. The program is the refinement scheme of powder spout scheme, is arranged on by powder spout in the housing sidewall of electromagnetic needle assembly in the program, can simplify powder delivery structure, and when realizing powder delivery function, on the rotation of electromagnetic needle and move axially and do not produce impact.
As preferably, described electromagnetic needle assembly also includes the back-moving spring driving electromagnetic needle axially to reset.
As preferably, described storage powder room is provided with the current limiting component acting on meal outlet.
As preferably, described storage powder room includes storage powder room body, and is arranged on the storage powder room end cap on the body of powder delivery storage powder room; Described current limiting component includes being in the current limliting bar being axially disposed within the end cap of storage powder room, and the taper inner end of current limliting bar coordinates current limliting with meal outlet.
The present invention adopts technique scheme, this electromagnetic needle dusting device is to be equipped with, on the electromagnetic needle assembly of tradition weft accumulator, the assembly that dusts, by electromagnetic needle high speed movement causes the instantaneous change of air pressure, by Pulvis Talci indoor for storage powder by after meal outlet sucking-off, through the end atomization ejection of dusting of electromagnetic needle movable passageway lower end; With the similar Pulvis Talci of microatomization in weaving process, constantly it is sprayed on electromagnetic needle surface so that without there being one layer of powder film between wax superfine glass fiber and electromagnetic needle, it is therefore prevented that glass and magnetic needle adhesion. After adopting this device, it is possible to start shooting smoothly, almost can being entirely prevented from glass and magnetic needle adhesion phenomenon, weaving efficiency obtains and greatly improves, and also makes to be possibly realized without wax fine-denier glass normal use.
Accompanying drawing explanation
Fig. 1 is embodiments of the invention 1 structural representations.
Fig. 2 is embodiments of the invention 2 structural representations.
Fig. 3 is embodiments of the invention 3 structural representations.
Fig. 4 is the structural representation implementing the parts that dust in 3.
Fig. 5 is embodiments of the invention 4 structural representations.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the invention are described in further detail.
Embodiment 1:
A kind of electromagnetic needle dusting device as shown in Figure 1, including the assembly that dusts being arranged on above electromagnetic needle assembly. Described electromagnetic needle assembly includes the magnetic part producing electromagnetic field, and moves axially the electromagnetic needle 12 being arranged in magnetic field, and the back-moving spring 13 that driving electromagnetic needle 12 axially resets. As shown in FIG., the enclosure interior of electromagnetic needle assembly is provided with coil rack 15, and coil rack 15 is provided with coil 16, and described coil 16, as magnetic part, is used for producing electromagnetic field; Being provided with electromagnetic needle movable passageway 14 in electromagnetic field, electromagnetic needle is positioned in electromagnetic needle movable passageway 14. It should be noted that in the program, indication magnetic field can be conventional motor magnetic field, the magnetic field namely driving electromagnetic needle 12 to rotate, is the conventional essential condition of electromagnetic needle 12 operation; Electromagnetic needle 12 moves axially, and is not limited to move axially, and indication moves axially herein is the necessary requirement of function of dusting; Therefore the electromagnetic needle 12 in the program be similar to conventional electromagnetic pin also can in magnetic field high-speed rotation, and described in move axially mainly through the action of a magnetic field coordinate back-moving spring 13 force realize.
The described assembly that dusts includes storage powder room 21, and storage powder room 21 includes storage powder room body 22, and is arranged on the storage powder room end cap 23 on powder delivery storage powder room body 22. Being provided with meal outlet 24 bottom described storage powder room 21, storage powder room 21 is provided with the current limiting component acting on meal outlet 24, can the flow of meal outlet 24 be limited by current limiting component. Described current limiting component includes being in the current limliting bar 25 being axially disposed within storage powder room end cap 23, and the taper inner end of current limliting bar 25 coordinates current limliting with meal outlet 24; Generally can adopting current limliting screw aborning, current limliting screw thread is engaged on storage powder room end cap 23, by axial adjustment, namely unscrews or tightens, adjustable meal outlet 24 actual go out shunt volume. Described meal outlet 24 communicates with electromagnetic needle 12 movable passageway in electromagnetic needle assembly, and specifically meal outlet 24 communicates with the Upper passage mouth of electromagnetic needle movable passageway, and electromagnetic needle movable passageway bottom is the end 14a that dusts.
Embodiment 2:
It it is this electromagnetic needle dusting device the second embodiment shown in Fig. 2, the program is identical with the overall structure of above-described embodiment 1, also it is the instantaneous change by causing air pressure in electromagnetic needle 12 high speed movement, by the Pulvis Talci in storage powder room 21 by after meal outlet 24 sucking-off, through the end 14a atomization ejection of dusting of electromagnetic needle movable passageway lower end; Its unique distinctive points is in that: being that meal outlet 24 is directly communicated with the end 14a that dusts of electromagnetic needle movable passageway 14 by powder spout in the program, powder spout shown in figure is to be made up of the pipeline 26 of connection meal outlet 24 and the end 14a that dusts. Adopt this structure can realize the purpose dusted in electromagnetic needle 12 surface, compared to the technical scheme communicated with the Upper passage mouth of electromagnetic needle movable passageway with meal outlet 24, this structure can be avoided using electromagnetic needle movable passageway as powder spout, thus the abrasion of electromagnetic needle 12 can be reduced, extend its service life.
Embodiment 3:
It it is this third embodiment of electromagnetic needle dusting device shown in Fig. 3, Fig. 4, the program is identical with the overall structure of above-described embodiment 2, also it is the instantaneous change by causing air pressure in electromagnetic needle 12 high speed movement, by the Pulvis Talci in storage powder room 21 by after meal outlet 24 sucking-off, by end 14a atomization ejection of dusting after the powder spout that pipeline 26 is constituted, this scheme possesses the advantage of above-described embodiment 2; Its distinctive points is in that: described in dust end 14a on be provided with the parts 17 that dust, the lower end of powder spout (i.e. pipeline 26) is connected to dusts on parts 17; The parts that dust are provided with central shaft hole 171, and along some linear passageway 172 that central shaft hole circumference is dispersed. The parts that dust adopting diverging can be conducive to powder inside to spray, and the some linear passageway especially by periphery spray, and reduces the abrasion for electromagnetic needle 12 shank of the powder within central shaft hole as much as possible.
Embodiment 4:
It is the 4th kind of embodiment of this electromagnetic needle dusting device shown in Fig. 5, the program is identical with the overall structure of above-described embodiment 1, also it is the instantaneous change by causing air pressure in electromagnetic needle 12 high speed movement, by the Pulvis Talci in storage powder room 21 by after meal outlet 24 sucking-off, through the end 14a atomization ejection of dusting of electromagnetic needle movable passageway lower end; Its unique distinctive points is in that: be that meal outlet 24 is directly communicated with the end 14a that dusts of electromagnetic needle movable passageway 14 by powder spout 27 in the program; Shown in figure, described powder spout 27 is arranged in the housing sidewall of electromagnetic needle assembly; The meal outlet 24 of storage powder room 21 docks mutually with the upper end of powder spout, and the bottom of powder spout is docked with end 14a phase of dusting.The program is the refinement scheme of powder spout scheme, is arranged on by powder spout in the housing sidewall of electromagnetic needle assembly in the program, can simplify powder delivery structure, and when realizing powder delivery function, on the rotation of electromagnetic needle 12 and move axially and do not produce impact. Adopt this structure can realize the purpose dusted in electromagnetic needle 12 surface, compared to the technical scheme communicated with the Upper passage mouth of electromagnetic needle movable passageway with meal outlet 24, this structure can be avoided using electromagnetic needle movable passageway as powder spout, thus the abrasion of electromagnetic needle 12 can be reduced, extend its service life.
Summary:
Four kinds of embodiments of summary, this electromagnetic needle 12 dusting device is to be equipped with, on the electromagnetic needle assembly of tradition weft accumulator, the assembly that dusts, by electromagnetic needle 12 high speed movement causes the instantaneous change of air pressure, by the Pulvis Talci in storage powder room 21 by after meal outlet 24 sucking-off, through the end 14a atomization ejection of dusting of electromagnetic needle movable passageway lower end; With the similar Pulvis Talci of microatomization in weaving process, constantly it is sprayed on electromagnetic needle 12 surface so that without there being one layer of powder film between wax superfine glass fiber and electromagnetic needle 12, it is therefore prevented that glass and magnetic needle adhesion. After adopting this device, it is possible to start shooting smoothly, almost can being entirely prevented from glass and magnetic needle adhesion phenomenon, weaving efficiency obtains and greatly improves, and also makes to be possibly realized without wax fine-denier glass normal use.
Claims (9)
1. an electromagnetic needle dusting device, including the assembly that dusts being arranged on above electromagnetic needle assembly; It is characterized in that: described electromagnetic needle assembly includes moving axially the electromagnetic needle being arranged in magnetic field; The described assembly that dusts includes storage powder room, and storage is provided with meal outlet bottom powder room, and meal outlet communicates with the electromagnetic needle movable passageway in electromagnetic needle assembly, and electromagnetic needle movable passageway bottom is the end that dusts.
2. a kind of electromagnetic needle dusting device according to claim 1, it is characterised in that: described meal outlet communicates with the Upper passage mouth of electromagnetic needle movable passageway.
3. a kind of electromagnetic needle dusting device according to claim 1, it is characterised in that: described meal outlet is communicated with the end that dusts of electromagnetic needle movable passageway by powder spout.
4. a kind of electromagnetic needle dusting device according to claim 3, it is characterised in that: described powder spout is to be made up of the pipeline of connection meal outlet and the end that dusts.
5. a kind of electromagnetic needle dusting device according to claim 4, it is characterised in that: described in dust end be provided with the parts that dust, the lower end of powder spout is connected to dusts on parts; The parts that dust are provided with central shaft hole, and along some linear passageway that central shaft hole circumference is dispersed.
6. a kind of electromagnetic needle dusting device according to claim 3, it is characterised in that: described powder spout is arranged in the housing sidewall of electromagnetic needle assembly; The meal outlet of storage powder room docks mutually with the upper end of powder spout, and the bottom of powder spout is docked mutually with the end that dusts.
7. a kind of electromagnetic needle dusting device according to claim 1, it is characterised in that: described electromagnetic needle assembly also includes the back-moving spring driving electromagnetic needle axially to reset.
8. a kind of electromagnetic needle dusting device according to claim 1, it is characterised in that: described storage powder room is provided with the current limiting component acting on meal outlet.
9. a kind of electromagnetic needle dusting device according to claim 8, it is characterised in that: described storage powder room includes storage powder room body, and is arranged on the storage powder room end cap on the body of powder delivery storage powder room;Described current limiting component includes being in the current limliting bar being axially disposed within the end cap of storage powder room, and the taper inner end of current limliting bar coordinates current limliting with meal outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610220897.8A CN105671754B (en) | 2016-04-11 | 2016-04-11 | A kind of electromagnetic needle dusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610220897.8A CN105671754B (en) | 2016-04-11 | 2016-04-11 | A kind of electromagnetic needle dusting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105671754A true CN105671754A (en) | 2016-06-15 |
| CN105671754B CN105671754B (en) | 2017-09-15 |
Family
ID=56308712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610220897.8A Active CN105671754B (en) | 2016-04-11 | 2016-04-11 | A kind of electromagnetic needle dusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105671754B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT201700051526A1 (en) * | 2017-05-12 | 2018-11-12 | Roj S R L | Electromagnetic weft stop device in weft feeder for textile machines and slider for this device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2404596Y (en) * | 1999-12-28 | 2000-11-08 | 象山县久源润滑件有限公司 | Apparatus for automatic spraying powder |
| CN1531610A (en) * | 2001-05-29 | 2004-09-22 | �����ɷ� | Stopper magnet for measuring yarn feeder |
| CN1946647A (en) * | 2004-02-11 | 2007-04-11 | Ppg工业俄亥俄州公司 | Fiber product coated with particles to adjust the friction of the coating and the interfilament bonding |
| CN201361598Y (en) * | 2008-11-07 | 2009-12-16 | 清华大学 | Dripping-free air auxiliary atomizing nozzle |
| CN202170396U (en) * | 2011-07-25 | 2012-03-21 | 吴江市鑫山纺织机械有限公司 | Electronic weft accumulator |
| CN204220332U (en) * | 2014-11-10 | 2015-03-25 | 天津开发区合普工贸有限公司 | The quantitative atomising device of spin axis propelled dust aerosol |
| CN205443575U (en) * | 2016-04-11 | 2016-08-10 | 慈溪太阳洲纺织科技有限公司 | Electromagnetism needle powder spray device |
-
2016
- 2016-04-11 CN CN201610220897.8A patent/CN105671754B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2404596Y (en) * | 1999-12-28 | 2000-11-08 | 象山县久源润滑件有限公司 | Apparatus for automatic spraying powder |
| CN1531610A (en) * | 2001-05-29 | 2004-09-22 | �����ɷ� | Stopper magnet for measuring yarn feeder |
| CN1946647A (en) * | 2004-02-11 | 2007-04-11 | Ppg工业俄亥俄州公司 | Fiber product coated with particles to adjust the friction of the coating and the interfilament bonding |
| CN201361598Y (en) * | 2008-11-07 | 2009-12-16 | 清华大学 | Dripping-free air auxiliary atomizing nozzle |
| CN202170396U (en) * | 2011-07-25 | 2012-03-21 | 吴江市鑫山纺织机械有限公司 | Electronic weft accumulator |
| CN204220332U (en) * | 2014-11-10 | 2015-03-25 | 天津开发区合普工贸有限公司 | The quantitative atomising device of spin axis propelled dust aerosol |
| CN205443575U (en) * | 2016-04-11 | 2016-08-10 | 慈溪太阳洲纺织科技有限公司 | Electromagnetism needle powder spray device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT201700051526A1 (en) * | 2017-05-12 | 2018-11-12 | Roj S R L | Electromagnetic weft stop device in weft feeder for textile machines and slider for this device |
| EP3401426A1 (en) * | 2017-05-12 | 2018-11-14 | ROJ S.r.l. | Electromagnetic device for stopping the weft thread in a weft feeder for weaving machines and slider for such device |
| CN108866768A (en) * | 2017-05-12 | 2018-11-23 | 罗伊有限公司 | The calutron of the weft yarn in weft yarn feeder for stopping loom and slider for this device |
| CN108866768B (en) * | 2017-05-12 | 2021-01-05 | 罗伊有限公司 | Electromagnetic device for stopping weft yarn in weft yarn feeder of weaving machine and slider for such device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105671754B (en) | 2017-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109759958B (en) | Electrostatic nozzle and controllable jet flow micro-lubrication grinding system | |
| CN208230223U (en) | pneumatic injection glue dispensing valve | |
| EP1216794A1 (en) | Apparatus and method for abrasive jet finishing of deeply concave surfaces using magnetorheological fluid | |
| CN205443575U (en) | Electromagnetism needle powder spray device | |
| CN105671754A (en) | Electromagnetic needle powder spraying device | |
| CN110253628A (en) | A kind of robot end's tool fast replacing device | |
| CN105499003A (en) | Novel liquid spot-spray torch and spot-spray method thereof | |
| CN105537020A (en) | Nozzle suit and spray gun | |
| CN206425118U (en) | A kind of anti-extension of the low disperse wide-angle of external mixing type must atomizer | |
| CN206676581U (en) | Energy-conserving and environment-protective spray gun for a kind of internal control of water paint spraying | |
| CN201889268U (en) | Gear daubing lubrication oil device | |
| CN110983666B (en) | Oil feeder of sewing machine | |
| US11964290B2 (en) | Compressed-fluid discharge control device | |
| CN110871152A (en) | Needle plug impact type injection dispensing valve | |
| US2811391A (en) | Electric spray-gun | |
| CN103406232B (en) | Power-saving lamp gluing rifle | |
| CN101301554B (en) | Spray head of dust catcher | |
| CN211079590U (en) | Sewing machine and needle oiling device thereof | |
| CN206966019U (en) | Slide disconnected glue glue dispensing valve | |
| CN203508254U (en) | Spraying gun nozzle component | |
| CN211039324U (en) | But plug positioner of high strength high efficiency | |
| CN208878838U (en) | A kind of HT2 double end arc pistol | |
| CN207671429U (en) | Yarn-feeding device | |
| CN208357807U (en) | A kind of Workpiece clamping head ejecting mechanism | |
| JP5889641B2 (en) | spray nozzle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 315300 No. 189 Gutang Street Science and Technology Road, Cixi City, Ningbo City, Zhejiang Province Patentee after: ZHEJIANG SUN ELECTRICAL SCIENCE AND TECHNOLOGY Co.,Ltd. Address before: 315300 Science and Technology Road 189 Zonghan Street, Cixi City, Ningbo City, Zhejiang Province Patentee before: Zhejiang Sun Electrical Science And Technology Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: An electromagnetic needle powder spraying device Effective date of registration: 20230223 Granted publication date: 20170915 Pledgee: China Construction Bank Corporation Cixi sub branch Pledgor: ZHEJIANG SUN ELECTRICAL SCIENCE AND TECHNOLOGY Co.,Ltd. Registration number: Y2023980033200 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |