CN111455504B - Twisted wire take-up roller fixing device based on bidirectional screw rod transmission principle - Google Patents
Twisted wire take-up roller fixing device based on bidirectional screw rod transmission principle Download PDFInfo
- Publication number
- CN111455504B CN111455504B CN202010270211.2A CN202010270211A CN111455504B CN 111455504 B CN111455504 B CN 111455504B CN 202010270211 A CN202010270211 A CN 202010270211A CN 111455504 B CN111455504 B CN 111455504B
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- movably connected
- fixedly connected
- screw rod
- fixing device
- block
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
- D01H1/14—Details
- D01H1/36—Package-shaping arrangements, e.g. building motions, e.g. control for the traversing stroke of ring rails; Stopping ring rails in a predetermined position
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H13/00—Other common constructional features, details or accessories
- D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Structural Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention relates to the technical field of textiles and discloses a twisting and take-up roller fixing device based on a bidirectional lead screw transmission principle, which comprises a rack, wherein a main shaft and a bidirectional lead screw are movably connected inside the rack, a sliding block is movably connected outside the bidirectional lead screw, a control spring is fixedly connected outside the sliding block, a movable rack is fixedly connected outside the control spring, an electric contact block is connected inside the control spring in a sleeved mode, a guide wire wheel is movably connected inside the movable rack, a rotating block is fixedly connected outside the main shaft, an adjusting rod is movably connected inside the rotating block, the main shaft, the bidirectional lead screw, the sliding block and the rotating block are matched for use, so that the effect of synchronizing a guide wire in the take-up process is achieved, the rotating block is horizontally manufactured, the yarn is effectively prevented from being rubbed with machinery, the abrasion of the yarn is avoided, and the take-up efficiency and the take-up quality of, and effectively ensure that the yarns are orderly arranged on the take-up roller for take-up.
Description
Technical Field
The invention relates to the technical field of spinning, in particular to a fixing device for a twisting and yarn-collecting roller based on a bidirectional screw rod transmission principle.
Background
The twisting machine is a textile mechanical device which twists a plurality of strands of spun yarns into one strand, and has the function of processing the yarns or the plied yarn products into linear products and threads for weaving and knitting.
While twisting, a twisting machine twists multiple strands of spun yarns into one strand, however, most of the existing twisting machines longitudinally place a take-up roller on the twisting machine, in such a way, the take-up roller can rub against the take-up roller during take-up, which easily causes damage of wires, the part of the yarn contacting with a mechanical structure is easily broken, and the take-up roller is usually clamped by a bottom clamping device and can only meet the fixation of a single-diameter take-up roller, different types of fixing mechanisms are often required to be prepared for the take-up rollers with different diameters, the operation is troublesome, time and labor are wasted, the fixing is not reliable, the centering is inaccurate, the take-up roller is easily separated from the fixing device, the yarn damage is caused, the twisting efficiency is influenced, and the vibration is easily caused by eccentricity in the rotating process, so that the take-up efficiency is influenced, the friction between the wires and the take-up roller is further increased, the damage of the wires is increased, and, in addition, the existing twisting machine only reminds workers by arranging an alarm, the workers stop to repair, the production progress is delayed, and products are unqualified easily due to negligence of the workers.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: a twisting and winding roller fixing device based on a bidirectional lead screw transmission principle comprises a rack, a main shaft, a bidirectional lead screw, a sliding block, a control spring, a movable frame, an electric contact block, a lead wheel, a rotating block, an adjusting rod, a toothed ring, a fixed gear, a fixed rod, a fixed plate, a brake disc, a brake rod, a positioning rod, a connecting gear, a movable rod and a brake motor.
The positions and the connection relations of the structures are as follows:
the inner part of the frame is movably connected with a main shaft and a bidirectional screw rod, the outer part of the bidirectional screw rod is movably connected with a slide block, the outer part of the slide block is fixedly connected with a control spring, the outer part of the control spring is fixedly connected with a movable frame, the inner part of the control spring is connected with an electric contact block in a sleeved mode, the inner part of the movable frame is movably connected with a wire guide wheel, the outer part of the main shaft is fixedly connected with a rotating block, the inner part of the rotating block is movably connected with an adjusting rod, the outer part of the adjusting rod is connected with a toothed ring in a meshed mode, the outer part of the toothed ring is connected with a fixed gear in a meshed mode, the outer part of the fixed gear is fixedly connected with a fixed rod, the outer part of the fixed rod is connected with a fixed, the outside meshing of locating lever is connected with the connecting gear, the outside meshing of connecting gear is connected with the movable rod, the outside swing joint of locating lever has the brake motor.
Preferably, the main shaft is fixedly connected with an external motor, and a first transmission wheel is arranged outside the main shaft.
Preferably, a second driving wheel is arranged outside the bidirectional screw rod, and a driving belt is movably connected between the first driving wheel and the second driving wheel.
Preferably, the sliding block is located above the rotating block, the inside of the sliding block is connected with a limiting rod in a sliding mode, and the limiting rod is fixedly connected with the rack.
Preferably, the electric contact blocks are provided with two electric contact blocks, one electric contact block is fixedly connected with the movable frame, the other electric contact block is fixedly connected with the sliding block, the two electric contact blocks are movably connected, and the two electric contact blocks are electrically connected with the brake motor.
Preferably, the number of the wire guide wheels is two, one wire guide wheel is movably connected with the movable frame, and the other wire guide wheel is movably connected with the sliding block.
Preferably, the number of the gear rings is two, the two gear rings are movably connected to two sides inside the rotating block, and the two gear rings are meshed with the adjusting rod.
Preferably, the fixed gears are arranged in two groups, the two groups of fixed gears are respectively meshed with the two gear rings, the two groups of fixed gears are movably connected inside the rotating block, four to eight fixed gears are arranged in each group, and each group of fixed gears is symmetrically distributed around the axis of the rotating block.
Preferably, the fixed plate is movably connected to the outer portion of the rotating block, and the fixed plate and the rotating block are provided with guide rods.
Preferably, the number of the brake levers is two, the two brake levers are movably connected to two sides of the brake disc respectively, and the two brake levers are hinged to each other and connected to the inside of the rack.
Advantageous effects
Compared with the prior art, the invention provides a twisting and yarn-collecting roller fixing device based on a bidirectional screw rod transmission principle, which has the following beneficial effects:
1. this twisting and receiving roller fixing device based on two-way lead screw transmission principle uses through the cooperation of main shaft, two-way lead screw, slider and turning block to reach the effect of carrying out synchronous wire at the receipts line in-process, and through violently making the turning block, effectively avoid yarn and mechanical friction, avoid yarn wearing and tearing, improve the receipts line efficiency and the receipts line quality of yarn, and effectively guarantee that the yarn is neatly arranged on receiving the line roller and receive the line.
2. This twisting and receiving roller fixing device based on two-way lead screw transmission principle uses through the cooperation of adjusting pole, ring gear, fixed gear, dead lever and fixed plate to reach the effect of fixed different diameter receiving roller, and self-centering, fixed stable, easy operation, thereby effectively improve work efficiency, guarantee to receive the stability of line process, avoid receiving the line roller and vibrate because of eccentric, effectively guarantee to receive the line effect of receiving the line roller.
3. This twist with fingers line and receive line roller fixing device based on two-way lead screw transmission principle uses through the cooperation of control spring, adjustable shelf, electric touch multitouch, brake lever, locating lever, connecting gear, movable rod and brake motor to reach when receiving the line trouble, the brake lever is automatic to be stopped tight brake disc, reaches the effect of automatic stop turning block, thereby avoids the yarn fracture, reduces the material waste, improves work efficiency.
Drawings
FIG. 1 is a schematic view of the overall connection of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the present invention, including the connection of the slider, the control spring, the movable frame, the electrical contact block and the wire guide wheel;
FIG. 3 is a schematic view showing the connection of a rotating block, an adjusting lever, a toothed ring, a fixed gear, a fixed rod and a fixed plate at the section A-A of the structure of FIG. 1 according to the present invention;
FIG. 4 is an enlarged view of the connection of the brake disc, the brake lever, the positioning lever, the connecting gear, the movable lever and the brake motor in part B of the structure of FIG. 1.
In the figure: 1. a frame; 2. a main shaft; 3. a bidirectional screw rod; 4. a slider; 5. a control spring; 6. a movable frame; 7. an electrical contact; 8. a wire guide wheel; 9. rotating the block; 10. adjusting a rod; 11. a toothed ring; 12. fixing a gear; 13. fixing the rod; 14. a fixing plate; 15. a brake disc; 16. a brake lever; 17. positioning a rod; 18. a connecting gear; 19. a movable rod; 20. a brake motor.
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.
Referring to fig. 1-4, a twisting and winding roller fixing device based on a bidirectional screw transmission principle includes a frame 1, a main shaft 2, a bidirectional screw 3, a slider 4, a control spring 5, a movable frame 6, an electrical contact block 7, a wire guide wheel 8, a rotating block 9, an adjusting rod 10, a toothed ring 11, a fixed gear 12, a fixed rod 13, a fixed plate 14, a brake disc 15, a brake rod 16, a positioning rod 17, a connecting gear 18, a movable rod 19, and a brake motor 20.
The positions and the connection relations of the structures are as follows:
the inner part of the frame 1 is movably connected with a main shaft 2 and a two-way screw rod 3, the main shaft 2 is fixedly connected with an external motor, the outer part of the main shaft 2 is provided with a first transmission wheel, the outer part of the two-way screw rod 3 is provided with a second transmission wheel, a transmission belt is movably connected between the first transmission wheel and the second transmission wheel, the outer part of the two-way screw rod 3 is movably connected with a slide block 4, the slide block 4 is positioned above a rotating block 9, the inner part of the slide block 4 is slidably connected with a limiting rod, the limiting rod is fixedly connected with the frame 1, the outer part of the slide block 4 is fixedly connected with a control spring 5, the outer part of the control spring 5 is fixedly connected with a movable frame 6, the inner part of the control spring 5 is connected with electric contact blocks 7 in a sleeved mode, two electric contact blocks 7 are arranged, one electric contact block 7 is fixedly connected with the movable frame 6, the other electric contact, the inside swing joint of adjustable shelf 6 has wire wheel 8, and wire wheel 8 is provided with two, a wire wheel 8 and adjustable shelf 6 swing joint, another wire wheel 8 and slider 4 swing joint.
The rotating block 9 is fixedly connected to the outer portion of the main shaft 2, the bidirectional screw rod 3, the sliding block 4 and the rotating block 9 are used in a matched mode, the effect of conducting synchronous wires in the wire winding process is achieved, yarn friction and mechanical friction are effectively avoided by horizontally manufacturing the rotating block 9, yarn abrasion is avoided, the wire winding efficiency and the wire winding quality of the yarn are improved, the yarn is effectively guaranteed to be wound on a wire winding roller in a neat mode, the adjusting rod 10 is movably connected to the inner portion of the rotating block 9, the outer portion of the adjusting rod 10 is meshed with two gear rings 11, the two gear rings 11 are movably connected to two sides of the inner portion of the rotating block 9, the two gear rings 11 are meshed with the adjusting rod 10, the outer portion of each gear ring 11 is meshed with one fixed gear 12, the two fixed gears 12 are provided with two groups, the two groups of fixed gears 12 are respectively meshed with the two gear rings 11, the two groups, and each group of fixed gears 12 is provided with four to eight, each group of fixed gears 12 is symmetrically distributed about the axis of the rotating block 9, the fixed rods 13 are fixedly connected to the outer portions of the fixed gears 12, the fixed plates 14 are slidably connected to the outer portions of the fixed rods 13, the fixed plates 14 are movably connected to the outer portions of the rotating block 9, the fixed plates 14 and the rotating block 9 are provided with guide rods, and the fixed rods and the fixed plates 14, the toothed rings 11, the fixed gears 12, the fixed rods 13 and the fixed plates 14 are matched for use, so that the effect of fixing the wire collecting rollers with different diameters is achieved, automatic centering is achieved, the fixing is stable, the operation is simple, the working efficiency is effectively improved, the stability of the wire collecting process is guaranteed, the wire collecting rollers are prevented from.
The brake disc 15 is fixedly connected to the outer portion of the main shaft 2, the brake rods 16 are movably connected to the outer portion of the brake disc 15, two brake rods 16 are arranged, the two brake rods 16 are respectively and movably connected to two sides of the brake disc 15, the two brake rods 16 are hinged to the inner portion of the frame 1, the inner portion of each brake rod 16 is movably connected with a positioning rod 17, the outer portion of each positioning rod 17 is connected with a connecting gear 18 in a meshed mode, the outer portion of each connecting gear 18 is connected with a movable rod 19 in a meshed mode, the outer portion of each positioning rod 17 is movably connected with a brake motor 20, the brake disc 15 is automatically tightened by the brake rods 16 through the control springs 5, the movable frames 6, the electric contact blocks 7, the brake rods 16, the positioning rods 17, the connecting gears 18, the movable rods 19 and the brake motors 20 in a matched mode, the effect of automatically stopping the rotating blocks, the working efficiency is improved.
The working process and the principle are that when the wire take-up device is used, the wire take-up roller is arranged outside the rotating block 9, the adjusting rod 10 is rotated at the same time, two sets of toothed rings 11 are arranged, two toothed rings 11 are movably connected to two sides inside the rotating block 9, two sets of toothed rings 11 are meshed with the adjusting rod 10, two sets of fixed gears 12 are arranged, two sets of fixed gears 12 are respectively meshed with the two toothed rings 11, two sets of fixed gears 12 are movably connected inside the rotating block 9, four to eight fixed gears 12 are arranged in each set, each set of fixed gears 12 are symmetrically distributed around the axis of the rotating block 9, the fixed gears 12 are fixedly connected with the fixed rods 13, the fixed rods 13 are movably connected with the fixed plates 14, the fixed plates 14 are movably connected outside the rotating block 9, the fixed plates 14 and the rotating block 9 are provided with guide rods, so that when the adjusting rod 10 is, the gear ring 11 drives the fixed gear 12 to rotate, the fixed gear 12 drives the fixed rod 13 to rotate, and the fixed rod 13 drives the fixed plate 14 to slide towards the outer side of the rotating block 9, so that the effect of fixing the take-up roller is achieved, the operation is simple, the fixing is stable, the axis of the take-up roller is automatically determined, and the collineation of the axis of the take-up roller and the axis of the main shaft 2 is guaranteed.
Because the rotating block 9 is fixedly connected with the main shaft 2, the main shaft 2 is fixedly connected with an external motor, a first driving wheel is arranged outside the main shaft 2, a second driving wheel is arranged outside the bidirectional screw rod 3, a driving belt is movably connected between the first driving wheel and the second driving wheel, the bidirectional screw rod 3 is movably connected with the sliding block 4, the sliding block 4 is positioned above the rotating block 9, the inside of the sliding block 4 is slidably connected with a limiting rod, and the limiting rod is fixedly connected with the frame 1, so that the external motor drives the main shaft 2 to rotate, the main shaft 2 drives the bidirectional screw rod 3 to rotate through the first driving wheel, the driving belt and the second driving wheel, so that the main shaft 2 drives the rotating block 9 to rotate, the rotating block 9 drives the take-up roller to rotate, thereby starting take-up, the bidirectional screw rod 3 drives the sliding block 4 to slide in a reciprocating manner outside the bidirectional screw, control spring 5 and the 6 fixed connection of adjustable shelf, the adjustable shelf 6 and the wire wheel 8 swing joint, wire wheel 8 is provided with two, 8 and the 6 swing joint of adjustable shelf of wire wheel, another wire wheel 8 and 4 swing joint of slider, so the yarn is between wire wheel 8 to slider 4 drives wire wheel 8 and controls reciprocal slip, thereby wire wheel 8 effectively guides the yarn, avoids yarn and mechanical friction, thereby causes the friction damage.
And when the mechanical failure, the paying-off wheel or the twisting mechanism is blocked, the yarn is tightened, because the guide wire wheel 8 is fixedly connected with the control spring 5, and the electric contact blocks 7 are provided with two, one electric contact block 7 is fixedly connected with the movable frame 6, the other electric contact block 7 is fixedly connected with the sliding block 4, the two electric contact blocks 7 are movably connected, and the two electric contact blocks 7 are electrically connected with the brake motor 20, the brake motor 20 is movably connected with the positioning rod 17, the positioning rod 17 is connected with the connecting gear 18 in a meshing way, the connecting gear 18 is connected with the movable rod 19 in a meshing way, the positioning rod 17 and the movable rod 19 are both movably connected with the brake rod 16, the two brake rods 16 are respectively and movably connected with two sides of the brake disc 15, the two brake rods 16 are mutually hinged and connected with the inner part of the frame 1, the brake disc 15 is fixedly connected with the outer part of the main shaft 2, when the yarn is tightened, the wire wheel 8 compresses the control spring 5, thereby two electric contact blocks 7 are connected, then the brake motor 20 starts, the brake motor 20 drives the positioning rod 17 to move, the positioning rod 17 drives the connecting gear 18 to rotate, the connecting gear 18 drives the movable rod 19 and the positioning rod 17 to reversely slide, thereby the movable rod 19 and the positioning rod 17 simultaneously drive the brake rod 16 to rotate, the brake rod 16 clamps the brake disc 15, thereby the effect of the brake rotating block 9 is achieved, the take-up roller stops rotating, thereby the fault of the reaction equipment is effectively and timely, the yarn breakage is avoided, thereby the material waste is reduced, and the work efficiency is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a twisted thread take-up roller fixing device based on two-way lead screw transmission principle, includes frame (1), its characterized in that: the inner part of the rack (1) is movably connected with a main shaft (2) and a two-way screw rod (3), the outer part of the two-way screw rod (3) is movably connected with a sliding block (4), the outer part of the sliding block (4) is fixedly connected with a control spring (5), the outer part of the control spring (5) is fixedly connected with a movable frame (6), the inner part of the control spring (5) is connected with an electric contact block (7) in a sleeved mode, the inner part of the movable frame (6) is movably connected with a wire guide wheel (8), the outer part of the main shaft (2) is fixedly connected with a rotating block (9), the inner part of the rotating block (9) is movably connected with an adjusting rod (10), the outer part of the adjusting rod (10) is connected with a toothed ring (11) in a meshed mode, the outer part of the toothed ring (11) is connected with, the outside sliding connection of dead lever (13) has fixed plate (14), the outside fixedly connected with brake disc (15) of main shaft (2), the outside swing joint of brake disc (15) has brake lever (16), the inside swing joint of brake lever (16) has locating lever (17), the outside meshing of locating lever (17) is connected with connecting gear (18), the outside meshing of connecting gear (18) is connected with movable rod (19), the outside swing joint of locating lever (17) has brake motor (20).
2. The fixing device of the twisting and winding roller based on the bidirectional screw rod transmission principle of claim 1, wherein: the main shaft (2) is fixedly connected with an external motor, and a first driving wheel is arranged outside the main shaft (2).
3. The fixing device of the twisting and winding roller based on the bidirectional screw rod transmission principle of claim 1, wherein: a second driving wheel is arranged outside the bidirectional screw rod (3), and a driving belt is movably connected between the first driving wheel and the second driving wheel.
4. The fixing device of the twisting and winding roller based on the bidirectional screw rod transmission principle of claim 1, wherein: the sliding block (4) is located above the rotating block (9), the sliding block (4) is connected with a limiting rod in a sliding mode, and the limiting rod is fixedly connected with the rack (1).
5. The fixing device of the twisting and winding roller based on the bidirectional screw rod transmission principle of claim 1, wherein: the electric contact blocks (7) are arranged in two numbers, one electric contact block (7) is fixedly connected with the movable frame (6), the other electric contact block (7) is fixedly connected with the sliding block (4), and the two electric contact blocks (7) are movably connected.
6. The fixing device of the twisting and winding roller based on the bidirectional screw rod transmission principle of claim 1, wherein: the two wire guide wheels (8) are arranged, one wire guide wheel (8) is movably connected with the movable frame (6), and the other wire guide wheel (8) is movably connected with the sliding block (4).
7. The fixing device of the twisting and winding roller based on the bidirectional screw rod transmission principle of claim 1, wherein: the number of the gear rings (11) is two, the two gear rings (11) are movably connected to two sides inside the rotating block (9), and the two gear rings (11) are meshed with the adjusting rod (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010270211.2A CN111455504B (en) | 2020-04-08 | 2020-04-08 | Twisted wire take-up roller fixing device based on bidirectional screw rod transmission principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010270211.2A CN111455504B (en) | 2020-04-08 | 2020-04-08 | Twisted wire take-up roller fixing device based on bidirectional screw rod transmission principle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111455504A CN111455504A (en) | 2020-07-28 |
| CN111455504B true CN111455504B (en) | 2021-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010270211.2A Expired - Fee Related CN111455504B (en) | 2020-04-08 | 2020-04-08 | Twisted wire take-up roller fixing device based on bidirectional screw rod transmission principle |
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| CN (1) | CN111455504B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112359449A (en) * | 2020-09-26 | 2021-02-12 | 周婷婷 | Intelligent manufacturing installation is prevented absolutely by yarn for spinning |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2801544C3 (en) * | 1978-01-14 | 1981-02-26 | Krupp-Koppers Gmbh, 4300 Essen | Device for cooling granular or powdery material |
| CN201330102Y (en) * | 2008-10-29 | 2009-10-21 | 济南二机床集团有限公司 | Expansion mechanism of core shaft of uncoiler |
| CN204000030U (en) * | 2014-08-08 | 2014-12-10 | 浙江越剑机械制造有限公司 | A kind of spindle brake device of large package two-for-one twister |
| CN206940118U (en) * | 2017-07-15 | 2018-01-30 | 无锡丰元新材料科技有限公司 | The automatic expansion mechanism of winding of band slitter |
| CN207243043U (en) * | 2017-08-14 | 2018-04-17 | 江苏双腾管业有限公司 | A kind of bidirectional high-efficiency switches uncoiler |
| CN107934688B (en) * | 2017-11-02 | 2019-07-23 | 苏州印丝特纺织数码科技有限公司 | A cloth winding reel with adjustable outer diameter |
| CN108059037A (en) * | 2018-01-06 | 2018-05-22 | 苏州鱼得水电气科技有限公司 | A kind of regulating device for textile bobbin |
| CN210126984U (en) * | 2019-04-11 | 2020-03-06 | 吉林吉大通信设计院股份有限公司 | H04W coiling device for wireless communication network electric wire |
| CN110817526B (en) * | 2019-12-19 | 2020-11-24 | 海宁市恒通经编有限公司 | Adjustable cloth coiling mechanism based on connecting rod transmission principle |
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Effective date of registration: 20210126 Address after: 415100 No.98, Zhonglian Avenue, Xiyan community, Guanxi Town, Dingcheng District, Changde City, Hunan Province Applicant after: Hunan Weiwen Machinery Co.,Ltd. Address before: 311500 No.22 Xingyang Road, Tonglu County, Hangzhou City, Zhejiang Province Applicant before: Hangzhou yuankaicheng Technology Co.,Ltd. |
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