CN219507356U - A cone winder for blended yarn - Google Patents

A cone winder for blended yarn Download PDF

Info

Publication number
CN219507356U
CN219507356U CN202320694519.9U CN202320694519U CN219507356U CN 219507356 U CN219507356 U CN 219507356U CN 202320694519 U CN202320694519 U CN 202320694519U CN 219507356 U CN219507356 U CN 219507356U
Authority
CN
China
Prior art keywords
clamping
yarn
winder
block
blended yarn
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.)
Active
Application number
CN202320694519.9U
Other languages
Chinese (zh)
Inventor
何立超
谷海平
刘新峰
马杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Weihai Shunsheng Knitting Garment Co ltd
Original Assignee
Weihai Shunsheng Knitting Garment Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Weihai Shunsheng Knitting Garment Co ltd filed Critical Weihai Shunsheng Knitting Garment Co ltd
Priority to CN202320694519.9U priority Critical patent/CN219507356U/en
Application granted granted Critical
Publication of CN219507356U publication Critical patent/CN219507356U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/66Disintegrating fibre-containing textile articles to obtain fibres for re-use

Landscapes

  • Treatment Of Fiber Materials (AREA)

Abstract

The utility model relates to a winding machine for blended yarns, which comprises a machine body, wherein a winding component and a plurality of clamping components for clamping yarn bobbins are rotationally connected on the machine body, each clamping component comprises a support frame and clamping blocks which are abutted against two ends of the yarn bobbin, each clamping block is fixed on the support frame, a plurality of limiting blocks are circumferentially fixed on the surfaces of the clamping blocks near the ends of the support frame, extrusion blocks corresponding to the limiting blocks are slidingly connected on the surfaces of the clamping blocks, the extrusion blocks are movably connected with one sides of the limiting blocks, which are far away from the support frame, of the limiting blocks, a plurality of springs are fixedly connected with the end parts of the springs, which are far away from the limiting blocks, and when the springs are in a natural state, the extrusion blocks are far away from the limiting blocks. The utility model has the effect of facilitating the replacement of the yarn barrel.

Description

A cone winder for blended yarn
Technical Field
The utility model relates to the technical field of winders, in particular to a winder for blended yarns.
Background
The blended yarn is a single yarn obtained by blending two or more kinds of fibers. The main function of the winder is to process a cop-like yarn into a cylindrical or cone-like cone yarn. The winding drum serves as the last process of spinning and the first process of weaving, plays a role of a bridge which is opened up and down, and plays an important role in the textile field. In the process of blending two or more different kinds of fibers into a single yarn, a winder for the blended yarn is indispensable.
In the processing process, firstly, more than two different kinds of fiber raw materials are opened and cleared, then cotton carding is carried out to remove impurities, then drawing is carried out to limit elongation, then, roving is processed into spun yarn to be made into bobbin easy to be sleeved, the bobbin is arranged on a winding machine to connect various cops (or hank yarns) with smaller capacity through the winding, and after the bobbin is made into a single bobbin with larger capacity, the specification of the product is checked to finish the processing.
According to the related technology, in the winding process, the yarn cylinder needs to be timely taken out and replaced after winding, the clamping device for conventionally clamping the yarn cylinder is fixed along the length direction of the yarn cylinder and stretches into the yarn cylinder, and when the yarn cylinder is disassembled and replaced, an operator is required to exert force to enable one end of the yarn cylinder to gradually extrude the clamping device to generate pressure and then disassemble, so that convenience is poor.
Disclosure of Invention
In order to facilitate the replacement of the yarn packages, the utility model provides a winder for blended yarn.
The utility model provides a bobbin winder for blended yarn, which adopts the following technical scheme:
the utility model provides a cone winder for blended yarn, includes the organism, rotates on the organism and is connected with a spool subassembly and a plurality of clamping components that are used for centre gripping yarn section of thick bamboo, the clamping components include the support frame and with the clamp splice of yarn section of thick bamboo both ends looks butt, the clamp splice is fixed in on the support frame, the clamp splice surface is close to the tip circumference of support frame and is fixed with a plurality of stoppers, clamp splice surface sliding connection has the extrusion piece corresponding with the stopper, one side swing joint that extrusion piece deviates from the support frame with the stopper, stopper surface is fixed with a plurality of springs, the tip that the stopper was kept away from to the spring links to each other with the extrusion piece is fixed, works as the spring is in when naturalness, the stopper is kept away from to the extrusion piece.
Through adopting above-mentioned technical scheme, when processing, with blank yarn section of thick bamboo both ends centre gripping respectively to the clamp splice on, the both ends butt extrusion piece of yarn section of thick bamboo realizes the prescribing a limit to the position simultaneously, arranges the fiber of more than two kinds of differences in the winding tube subassembly simultaneously and takes out the line, thereby the rotation of winding tube subassembly is driven to the output power in the organism and is rotated the yarn section of thick bamboo of drive butt, and then integrates the tip of the yarn that draws out into the yarn section of thick bamboo. During the operation of the machine body, the multiple yarns are gathered into one strand on the yarn drum. When dismantling and changing a yarn section of thick bamboo, operating personnel extrudees the extrusion piece on one of them clamp splice of one of them yarn section of thick bamboo, and the extrusion piece slides to being close to the stopper after the spring compression for the whole clamp splice depths to one end of yarn section of thick bamboo slide, thereby make the other end of yarn section of thick bamboo slide to breaking away from the clamp splice on the clamp splice, then operating personnel takes off a yarn section of thick bamboo, adopts same step to change new yarn section of thick bamboo, and is simple convenient.
Optionally, the extrusion piece is close to the fixed surface of stopper and is equipped with a plurality of raised posts, a plurality of movable grooves have been seted up on the stopper surface, raised post extends to movable inslot and movable groove inner wall sliding connection.
Through adopting above-mentioned technical scheme, in the course of working, yarn section of thick bamboo rotates, and the projection extends to the movable inslot, and the connection compactness of reinforcing stopper and extrusion piece to make the support of clamping assembly to yarn section of thick bamboo more stable.
Optionally, the clamp splice surface rotates and is connected with a plurality of commentaries on classics rollers that are in butt with a yarn section of thick bamboo, the commentaries on classics roller rotates along a yarn section of thick bamboo axis direction.
Through adopting above-mentioned technical scheme, at yarn section of thick bamboo pivoted in-process, drive the synchronous rotation of roller to reduce the influence of clamping assembly to yarn section of thick bamboo pivoted resistance that produces, make yarn section of thick bamboo pivoted more smooth and easy.
Optionally, the end of the extrusion block is fixed with a sliding block, and a sliding groove for sliding the sliding block is formed in the surface of the clamping block.
Through adopting above-mentioned technical scheme, at the in-process of extrusion piece, the slider slides at the spout inner wall to provide direction and spacing effect for the slip of extrusion piece, make the gliding more stable of extrusion piece.
Optionally, install the adsorption component on the organism, the adsorption component includes aspiration pump and bin, the output of aspiration pump is towards spooling subassembly and clamping assembly, the one end that the aspiration pump deviates from spooling subassembly is linked together with the bin.
Through adopting above-mentioned technical scheme, at the spooling in-process, operating personnel starts the air pump, adsorbs remaining impurity or cracked line on yarn in spooling subassembly and the centre gripping subassembly operation in-process to reduce impurity adhesion and influence the normal work of cone winder in each structure department of cone winder. The impurity accumulation of collecting is in the storage box to the follow-up unified clearance of operating personnel of being convenient for, it is simple convenient.
Optionally, the adsorption assembly further comprises an air extraction cover covering the outside of the output end of the air extraction pump, and an opening of the air extraction cover faces the winding assembly and the clamping assembly.
Through adopting above-mentioned technical scheme, at the in-process that the aspiration pump was taken out, the scope of the concentrated air extraction of aspiration hood expansion aspiration pump to make the aspiration pump concentrate on the surface of a spooler subassembly and centre gripping subassembly and carry out the absorption of impurity, improve adsorption efficiency.
Optionally, a plurality of atomizer are arranged in the storage box, and the output end of the atomizer faces the end part of the air pump.
Through adopting above-mentioned technical scheme, from the impurity weight such as broken string of aspiration pump output lighter, operating personnel inserts power equipment output solution to atomizer from the external world for atomizer blowout atomized solution adheres to and combines together at impurity surface and impurity, thereby improves the weight of impurity, and the impurity of being convenient for adheres to the bin inner wall, and the impurity leaks when reducing operating personnel dismantles the bin, improves the clean convenience of bin of operating personnel.
Optionally, the storage box is equipped with the hydrophobic box and the water pipe that leads to that is linked together with the hydrophobic box outward, the one end that the water pipe kept away from the hydrophobic box is linked together with the atomizer.
Through adopting above-mentioned technical scheme, operating personnel inputs solution through the hydrophobic tank to the intraductal input solution of water, then provides solution in to atomizer through the water pipe to the solution output of atomizer of being convenient for.
In summary, the present utility model includes at least one of the following beneficial technical effects:
1. through the arrangement of the springs, the extrusion block clamps the end part of the yarn barrel under the action of spring force, so that the clamping effect of the yarn barrel is improved;
2. through the arrangement of the rotating roller, the rotating roller rotates along with the yarn cylinder during rotation, so that the resistance to the rotation of the yarn cylinder is reduced, and the smoothness of the rotation of the yarn cylinder is improved;
3. through the setting of atomizer, the atomized solution of via hydrophobic tank and water pipe output combines with aspiration pump absorptive impurity to improve the weight and the adhesion of impurity, be convenient for impurity absorption inside the storage box, and then be convenient for operating personnel's clearance.
Drawings
Fig. 1 is a schematic overall structure of a winder for blended yarn.
Fig. 2 is a schematic view of a structure of a protruding atomizer.
Fig. 3 is a schematic structural view of the clamping block.
FIG. 4 is a schematic view of the connection of the protruding squeeze block and the stopper.
Reference numerals illustrate: 1. a body; 11. a spooling assembly; 2. a clamping assembly; 21. a support frame; 22. clamping blocks; 221. a limiting block; 2211. a movable groove; 222. extruding a block; 2221. a convex column; 2222. a slide block; 223. a spring; 224. a rotating roller; 225. a chute; 3. an adsorption assembly; 31. an air extracting pump; 32. a storage box; 321. an atomizing nozzle; 322. a water pipe; 323. a hydrophobic tank; 33. an air pumping cover.
Detailed Description
The present utility model will be described in further detail below with reference to the accompanying drawings.
The embodiment of the utility model discloses a bobbin winder for blended yarns.
Referring to fig. 1, a winder for blended yarn comprises a machine body 1, wherein a winding assembly 11 and a plurality of clamping assemblies 2 for clamping yarn bobbins are rotatably connected to the machine body 1. The winding assembly 11 comprises a friction roller and a plurality of winding frames for installing bobbins, and a power device is arranged in the machine body 1. In the processing course, the bobbin frame is convenient for the installation of the bobbin that the fibre of a plurality of different materials formed, and clamping assembly 2 is used for centre gripping yarn section of thick bamboo, and operating personnel gathers yarn section of thick bamboo department on the bobbin. The power equipment provides power for the rotation of the friction roller, and the friction roller rotates to drive the yarn drum which is abutted against the friction roller to synchronously rotate, so that the yarn drum winds yarns, and the winding is simple and convenient.
Referring to fig. 1 and 2, the machine body 1 is provided with an adsorption assembly 3, the adsorption assembly 3 comprises an air pump 31 and a storage box 32, the output end of the air pump 31 faces the winding assembly 11 and the clamping assembly 2, and one end of the air pump 31, which faces away from the winding assembly 11, is communicated with the storage box 32. The suction pump 31 adsorbs broken threads, residual impurities and the like generated in the winding process, so that the influence of the accumulation of the impurities on the structural surface of the winder on the structural operation is reduced. The storage tank 32 is convenient for collect the impurity adsorbed by the suction pump 31, thereby facilitating the cleaning of the operator. The adsorption assembly 3 further comprises an air suction cover 33 covering the output end of the air suction pump 31, and the opening of the air suction cover 33 faces the winding assembly 11 and the clamping assembly 2. The suction hood 33 expands the suction range of the suction pump 31, reduces the diffusion of suction power of the suction pump 31, and improves the efficiency of the suction pump 31 for adsorbing impurities.
Referring to fig. 1 and 2, a plurality of atomizing nozzles 321 are provided in the storage tank 32, and the output ends of the atomizing nozzles 321 face the end of the air pump 31. The storage tank 32 is provided with a hydrophobic tank 323 and a water pipe 322 communicated with the hydrophobic tank 323, and one end of the water pipe 322 far away from the hydrophobic tank 323 is communicated with the atomizing nozzle 321. The atomizer 321 outputs the atomized solution and acts on the impurity of aspiration pump 31 output to make atomized solution combine together with the impurity, promote the weight and the adhesion of impurity, be convenient for impurity adhesion in storage box 32, and then reduce the condition that the impurity diffusion in the air when operating personnel dismantles storage box 32 and clear up. A drain pump (not shown in the figure) is arranged in the drain tank 323, and the drain pump is started to supply the solution in the drain tank 323 to the atomizing nozzle 321 through the water pipe 322, so that the subsequent action of the atomizing nozzle 321 is facilitated.
Referring to fig. 1 and 3, the clamping assembly 2 comprises a supporting frame 21 and clamping blocks 22 abutted against two ends of a yarn drum, the clamping blocks 22 are fixed on the supporting frame 21, a plurality of limiting blocks 221 are circumferentially fixed on the surface of the clamping blocks 22 near the end part of the supporting frame 21, the surface of the clamping blocks 22 is slidably connected with extrusion blocks 222 corresponding to the limiting blocks 221, the extrusion blocks 222 are movably connected with one side, deviating from the supporting frame 21, of the limiting blocks 221, a plurality of springs 223 are fixed on the surface of the limiting blocks 221, the ends, far from the limiting blocks 221, of the springs 223 are fixedly connected with the extrusion blocks 222, and when the springs 223 are in a natural state, the extrusion blocks 222 are far from the limiting blocks 221. The clamp splice 22 is convenient for carry out the centre gripping to the yarn section of thick bamboo from both ends, and support frame 21 supports the yarn section of thick bamboo of clamp splice 22 and looks centre gripping, and when yarn section of thick bamboo and friction roller surface butt, yarn section of thick bamboo circumference area increase gradually in the wire winding in-process to keep away from mutually with the friction roller, support through support frame 21 improves the stability of wire winding process. The pressing block 222 abuts against the end of the bobbin, and limits the position of the bobbin during the bobbin clamping process. The spring 223 is compressed by the extrusion force of the extrusion block 222 extruded by the yarn barrel, so that the extrusion block 222 is driven to be close to the limiting block 221, the sliding distance of one end of the yarn barrel on the clamping block 22 is changed, and the other end of the yarn barrel is gradually separated from the clamping block 22 to detach the yarn barrel, so that the yarn barrel is simple and convenient.
Referring to fig. 3 and 4, the surface of the clamping block 22 is rotatably connected with a plurality of rotating rollers 224 which are abutted against the yarn drum, and the rotating rollers 224 rotate along the central axis direction of the yarn drum. The rotating roller 224 rotates along with the rotation of the yarn drum, so that the influence on the resistance of the yarn drum in rotation is reduced, and the smoothness of the rotation of the yarn drum is improved.
Referring to fig. 3 and 4, a plurality of protruding columns 2221 are fixed on the surface of the extrusion block 222 near the limiting block 221, a plurality of movable slots 2211 are formed on the surface of the limiting block 221, and the protruding columns 2221 extend into the movable slots 2211 and are slidably connected with the inner walls of the movable slots 2211. When the yarn cylinder is installed, the extrusion block 222 is abutted with the end part of the yarn cylinder, fine power is generated in the rotation process of the yarn cylinder, the convex column 2221 slides on the inner wall of the movable groove 2211, the connection tightness of the extrusion block 222 and the limiting block 221 is improved, and the clamping stability of the clamping assembly 2 to the yarn cylinder is further improved.
Referring to fig. 3 and 4, a sliding block 2222 is fixed to an end of the pressing block 222, and a sliding groove 225 for sliding the sliding block 2222 is formed in a surface of the clamping block 22. The slide grooves 225 provide guiding and limiting effects for the sliding of the slide block 2222, thereby making the sliding of the slide block 2222 and the pressing block 222 more stable.
The embodiment of the utility model provides a bobbin winder for blended yarn, which has the implementation principle that: in the processing process, firstly, an operator installs a plurality of bobbins on a bobbin frame, one end of the yarn bobbin is extruded to the extrusion block 222 to enable the other end to slide onto the clamping block 22, then the force is reduced, and two ends of the yarn bobbin are clamped on the clamping block 22 and simultaneously butt against the extrusion block 222 to realize the installation of the yarn bobbin. Then the end of the drawn yarn is uniformly wound on the yarn cylinder, the supporting frame 21 is controlled to abut against the surface of the friction roller until the yarn cylinder abuts against the surface of the friction roller, and then the power equipment in the machine body 1 is started to control the friction roller to rotate so as to drive the yarn cylinder to synchronously rotate for winding the yarn. Meanwhile, the drain pump and the suction pump 31 in the drain tank 323 collect broken lines, impurities and the like generated in the process. After winding, an operator timely holds one end of the yarn tube to squeeze the pressing block 222, so that the spring 223 is compressed, the sliding block 2222 slides in the sliding groove 225 until one end of the yarn tube breaks away from the clamping block 22, and the yarn tube is taken down for replacement, and the next process is continued.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (8)

1. The utility model provides a cone winder for blended yarn, includes organism (1), rotates on organism (1) and is connected with winding subassembly (11) and a plurality of clamping component (2) that are used for centre gripping yarn section of thick bamboo, its characterized in that: clamping component (2) include support frame (21) and with clamping block (22) of yarn section of thick bamboo both ends looks butt, clamping block (22) are fixed in on support frame (21), the tip circumference that clamping block (22) surface is close to support frame (21) is fixed with a plurality of stopper (221), clamping block (22) surface sliding connection has extrusion piece (222) corresponding with stopper (221), extrusion piece (222) and stopper (221) deviate from one side swing joint of support frame (21), stopper (221) surface fixation has a plurality of springs (223), the tip that stopper (221) were kept away from to spring (223) links to each other with extrusion piece (222) is fixed, works as when spring (223) are in natural state, stopper (221) are kept away from to extrusion piece (222).
2. A winder for blended yarn according to claim 1, wherein: the surface of the extrusion block (222) close to the limiting block (221) is fixedly provided with a plurality of convex columns (2221), the surface of the limiting block (221) is provided with a plurality of movable grooves (2211), and the convex columns (2221) extend into the movable grooves (2211) and are in sliding connection with the inner walls of the movable grooves (2211).
3. A winder for blended yarn according to claim 1, wherein: the surface of the clamping block (22) is rotatably connected with a plurality of rotating rollers (224) which are abutted against the yarn cylinder, and the rotating rollers (224) rotate along the direction of the central axis of the yarn cylinder.
4. A winder for blended yarn according to claim 1, wherein: the end part of the extrusion block (222) is fixedly provided with a sliding block (2222), and the surface of the clamping block (22) is provided with a sliding groove (225) for the sliding block (2222) to slide.
5. A winder for blended yarn according to claim 1, wherein: install on organism (1) and adsorb subassembly (3), adsorb subassembly (3) include aspiration pump (31) and storage box (32), the output of aspiration pump (31) is towards winding up subassembly (11) and centre gripping subassembly (2), the one end that aspiration pump (31) deviate from winding up subassembly (11) is linked together with storage box (32).
6. A winder for blended yarn according to claim 5, wherein: the adsorption component (3) further comprises an air extraction cover (33) covered outside the output end of the air extraction pump (31), and an opening of the air extraction cover (33) faces the winding component (11) and the clamping component (2).
7. A winder for blended yarn according to claim 5, wherein: a plurality of atomizing nozzles (321) are arranged in the storage box (32), and the output ends of the atomizing nozzles (321) face the end part of the air extracting pump (31).
8. A winder for blended yarn according to claim 6, wherein: the storage box (32) is provided with a hydrophobic box (323) and a water through pipe (322) communicated with the hydrophobic box (323), and one end, far away from the hydrophobic box (323), of the water through pipe (322) is communicated with the atomizing nozzle (321).
CN202320694519.9U 2023-03-29 2023-03-29 A cone winder for blended yarn Active CN219507356U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320694519.9U CN219507356U (en) 2023-03-29 2023-03-29 A cone winder for blended yarn

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320694519.9U CN219507356U (en) 2023-03-29 2023-03-29 A cone winder for blended yarn

Publications (1)

Publication Number Publication Date
CN219507356U true CN219507356U (en) 2023-08-11

Family

ID=87550402

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320694519.9U Active CN219507356U (en) 2023-03-29 2023-03-29 A cone winder for blended yarn

Country Status (1)

Country Link
CN (1) CN219507356U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117800161A (en) * 2024-03-01 2024-04-02 徐州银宇纺织有限公司 Automatic bobbin winder for spinning

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117800161A (en) * 2024-03-01 2024-04-02 徐州银宇纺织有限公司 Automatic bobbin winder for spinning
CN117800161B (en) * 2024-03-01 2024-05-17 徐州银宇纺织有限公司 Automatic bobbin winder for spinning

Similar Documents

Publication Publication Date Title
CN112249812A (en) Yarn evenly winds package and puts with clearance function
CN219507356U (en) A cone winder for blended yarn
CN113403714B (en) Full-automatic drawing frame
CN114808218B (en) Spun yarn broken end automatic stop device suitable for spinning flax racing winding
CN219823238U (en) Spinning bobbin with dust removal function
CN112678625A (en) Cotton yarn production overspeed device tensioner for rolling with edulcoration function
CN104195683B (en) A kind of negative pressure type compact SEILE textile machine
CN209113230U (en) A kind of textile machines Thread-feeding device
CN202139352U (en) Air mesh coating mechanism of air multilayer spandex mesh coated silk machine
CN214612905U (en) Yarn doubling machine for laboratory
CN1619025A (en) Leading-in/moving-out device for yarn end in free end spinning rotary cup
CN115744465A (en) A integration arrangement equipment for yarn weaving
CN205662650U (en) Walk automatic piecing devices of a machine
CN209508493U (en) A kind of weaving drafting equipment
CN215103758U (en) Active yarn guide device for combing compact spinning covering yarn core yarn
CN112173855A (en) High-reliability bobbin winder
CN210064726U (en) Winding system for fabric spinning
CN213833967U (en) High-efficient weaving of clean type is from twine machine
CN211895504U (en) Winder is used in cellosilk weaving
CN216998740U (en) Drafting device for spinning yarns
CN221028864U (en) Novel twisting machine for cloth processing
CN221700725U (en) Winding machine convenient for feeding
CN220977271U (en) Short fiber two-for-one twister preventing breakage of wire
CN219951332U (en) Sliver roving equipment for textile production
CN210286307U (en) Knotless yarn automatic winder with air splicer

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant