CN111843053A - Spiral gear machining equipment - Google Patents
Spiral gear machining equipment Download PDFInfo
- Publication number
- CN111843053A CN111843053A CN202010708547.2A CN202010708547A CN111843053A CN 111843053 A CN111843053 A CN 111843053A CN 202010708547 A CN202010708547 A CN 202010708547A CN 111843053 A CN111843053 A CN 111843053A
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- CN
- China
- Prior art keywords
- processing
- frame
- rod
- fixed
- movably sleeved
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F9/00—Making gears having teeth curved in their longitudinal direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
Abstract
The invention discloses spiral gear machining equipment which comprises a base, wherein a fixed plate is fixedly arranged at the top of the base, a motor is fixedly arranged at the left upper part of the front side of the fixed plate, an output shaft is movably arranged at the inner side of the motor, a feeding rod is movably sleeved at the central position of the inner side of a fixed seat, a blanking frame is fixedly arranged on the outer wall of one side, away from a supporting frame, of a machining frame, a fixed rod is fixedly arranged at the central position of the blanking frame, a rotating rod is movably sleeved at the outer side of the fixed rod, and a limiting rod is fixedly arranged on the surface of the blanking frame. Through the through-hole inner wall middle part fixed mounting cutter at processing frame cup joint processing pole for when the processing pole drives to wait to process the gear and removes to the inside of processing frame, wait to process the outer wall and the cutter of gear to the contact, because the processing pole rotates with the processing frame center in the rotation, make when the processing pole rotates, make the outer wall of waiting to process the gear will be by the spiral helicine insection of cutter processing, thereby realize processing.
Description
Technical Field
The invention relates to the technical field of gear machining, in particular to spiral gear machining equipment.
Background
The spiral gear is a common part in the industrial machinery aspect, because the external wall insection of the spiral gear is spiral, the processing difficulty is larger than that of the common gear, and the existing processing device has a plurality of defects, for example, the spiral gear processing mechanism in the Chinese patent with the publication number of CN104308278B can not carry out automatic feeding and discharging when in use, thereby influencing the processing speed of the spiral gear.
Disclosure of Invention
In order to overcome the above-mentioned defects in the prior art, an embodiment of the present invention provides a helical gear processing apparatus, and the problems to be solved by the present invention are: the existing processing device can not automatically feed and discharge when in use, thereby influencing the processing speed of the processing of the helical gear.
In order to achieve the purpose, the invention provides the following technical scheme: a spiral gear processing device comprises a base, wherein a fixed plate is fixedly installed at the top of the base, a motor is fixedly installed at the upper left of the front side of the fixed plate, an output shaft is movably installed on the inner side of the motor, a fixed seat is fixedly installed at the tail end of the output shaft, a first bearing seat is movably sleeved on the outer side of the fixed seat through a bearing, the outer side of the first bearing seat is fixedly connected with the fixed plate, four processing rods with the same diameter are movably sleeved on the fixed seat through holes formed in the inner side of the fixed seat, the middle position of each processing rod is bent, a feeding rod is movably sleeved on the central position of the inner side of the fixed seat, a processing frame is movably sleeved on the outer side of one end, away from the fixed seat, of the feeding rod, the processing frame is movably sleeved on the outer side of the tail end of the processing rod, a second, the outer side of the bearing seat II is fixedly connected with a fixed plate, the front side of the fixed plate is fixedly provided with a bearing seat III, the inner side of the bearing seat III is movably sleeved with a bearing seat I, the inner side of the bearing seat I is movably sleeved with a supporting frame, the supporting frame is movably sleeved on the outer side of the processing rod, the supporting frame is positioned at one side, away from the fixed seat, of the bending part of the processing rod, the front side of the fixed plate is fixedly provided with a supporting plate, the supporting plate is positioned between the outer wall of the bottom of the bearing seat III and the outer wall of the bottom of the bearing seat II, the top of the supporting plate is fixedly provided with a sliding plate, a guide block is fixedly arranged at the end, close to the processing frame, of the top of the sliding plate, a guide head is fixedly arranged at one end, close to the processing frame, of the processing rod, a, and the surface of the blanking frame is fixedly provided with a limiting rod.
In a preferred embodiment, the inner outer edge portion of the processing frame is provided with four through holes, and the four through holes of the outer edge portion are fixedly provided with cutters which are uniformly distributed in the middle of the through holes.
In a preferred embodiment, the outer wall of the feeding rod is fixedly sleeved with a fixing ring, the fixing ring is located on the outer side of one side, close to the processing frame, of the supporting frame, the feeding rod is located at one end, close to the processing frame, of the fixing ring, a cavity is formed in the end, close to the processing frame, of the feeding rod, the feeding rod is of a hollow structure, and a feeding opening is formed in one end, close to the fixing ring, of the.
In a preferred embodiment, the surface of the fixing plate is fixedly provided with a blanking groove, the blanking groove is in an inclined state, and the highest point is located at the edge of the lower right corner of the processing frame.
In a preferred embodiment, the outer wall of the processing rod is fixedly sleeved with a limiting plate, and the limiting plate is positioned on one side of the supporting frame, which is close to the processing frame.
In a preferred embodiment, a spring is movably mounted at the top of the rotating rod, and the tail end of the spring is fixedly connected with the processing frame.
In a preferred embodiment, the top of the sliding plate is concave, and the radius of the concave arc is larger than the maximum distance between the outer wall of the processing rod and the central position of the supporting frame.
In a preferred embodiment, the processing rod and the feeding rod are both V-shaped, and included angles are both 90 °, and included angles between the processing rod, the feeding rod and the base are both 45 °.
In a preferred embodiment, a fixed key is fixedly mounted on the outer wall of the processing rod, one end of the fixed key is fixedly connected with the limiting rod, when the processing rod is processed, the processed part is made of a plastic material, the fixed key is matched with a key groove in the part to be processed, and the plastic part to be processed is movably sleeved on the outer side of the fixed key through the key groove formed in the inner side of the plastic part to be processed.
The invention has the technical effects and advantages that:
1. according to the invention, the fixed plate is fixedly arranged at the top of the fixed seat, the motor is fixedly arranged on the surface of the fixed plate, the outer side of the motor is connected with the fixed seat through the output shaft, the bearing I sleeved outside the fixed seat is fixedly connected with the fixed plate, and the inner part of the fixed seat is movably sleeved with the four processing rods with the same diameter and the feeding rod, so that when the motor runs, the fixed seat is driven to rotate through the output shaft, and the processing rods and the feeding rod rotate on the inner side of the fixed seat.
2. According to the invention, the fixed ring is fixedly sleeved on the outer wall of the feeding rod, the cavity is formed at one end of the feeding rod, the feeding port is formed at the bottom of the feeding rod, so that a part to be processed is placed in the cavity and can slide out through the feeding port, the gear to be processed slides to the surface of the sliding plate through the fixed ring, the guide head is fixedly arranged at the tail end of the processing rod, the limiting plate is fixedly sleeved on the outer wall of the processing rod, the fixed key is fixedly arranged on the outer wall of the processing rod, so that when the gear to be processed slides to the upper part of the sliding plate, the guide head can guide the gear to be processed to be movably sleeved on the outer side of the processing rod through the rotation of the rotating rod, the key groove on the inner wall of the gear to be processed is attached to the fixed key, and the processing rod can drive the gear.
3. According to the invention, the cutter is fixedly arranged in the middle of the inner wall of the through hole of the machining frame sleeved with the machining rod, so that when the machining rod drives the gear to be machined to move to the inside of the machining frame, the outer wall of the gear to be machined is in contact with the cutter, and as the machining rod rotates around the center of the machining frame while rotating, the outer wall of the gear to be machined is machined into spiral insections by the cutter, thereby realizing machining.
4. According to the invention, the blanking frame is fixedly arranged on the outer wall of one side of the processing frame, which is far away from the supporting frame, the fixing rod is fixedly arranged on the inner side of the blanking frame, and the tail end of the fixing rod is movably connected with the spring, so that a workpiece is ejected out when the processing rod rotates, and when the processing rod continues to rotate and retract, the bottom of the rotating rod is attached to the outer wall of one side of the workpiece, which is close to the processing frame, so that the workpiece falls off and is discharged through the blanking groove in a sliding manner.
Drawings
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a sectional view of the structure of a second bearing and a third bearing of the present invention;
FIG. 3 is a cross-sectional view taken at C of FIG. 2 in accordance with the present invention;
FIG. 4 is a cross-sectional view taken along line A of FIG. 1 in accordance with the present invention;
FIG. 5 is a schematic view of FIG. 1 taken along line B of the present invention;
FIG. 6 is a top view of the structure of the processing rod and the slide plate of the present invention.
The reference signs are: 1. a base; 2. a motor; 3. an output shaft; 4. a first bearing seat; 5. a fixed seat; 6. processing a rod; 7. a feeding rod; 8. a second bearing seat; 9. processing the frame; 10. a fixing plate; 11. a third bearing seat; 12. a support frame; 13. a fixing ring; 14. a limiting plate; 15. a guide head; 16. a slide plate; 17. a guide block; 18. a feeding port; 19. a cutter; 20. a cavity; 21. a blanking frame; 22. fixing the rod; 23. a rotating rod; 24. a limiting rod; 25. a spring; 26. a support plate; 27. a fixed key; 28. a discharging groove; 29. a first bearing; 30. and a second bearing.
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. 1-6, the present invention provides a technical solution: a spiral gear processing device comprises a base 1, wherein a fixed plate 10 is fixedly installed at the top of the base 1, a motor 2 is fixedly installed at the upper left of the front side of the fixed plate 10, an output shaft 3 is movably installed at the inner side of the motor 2, a fixed seat 5 is fixedly installed at the tail end of the output shaft 3, a first bearing seat 4 is movably sleeved on the outer side of the fixed seat 5 through a bearing, the outer side of the first bearing seat 4 is fixedly connected with the fixed plate 10, four processing rods 6 with the same diameter are movably sleeved on the fixed seat 5 through holes formed in the inner side of the fixed seat 5, the middle position of each processing rod 6 is bent, a feeding rod 7 is movably sleeved at the central position of the inner side of the fixed seat 5, a processing frame 9 is movably sleeved on the outer side of one end, away from the fixed seat 5, of the feeding rod 7, the processing frame 9 is movably sleeved on the tail end of the, the outer side of the bearing II 30 is movably sleeved with a bearing seat II 8, the outer side of the bearing seat II 8 is fixedly connected with a fixed plate 10, the front side of the fixed plate 10 is fixedly provided with a bearing seat III 11, the inner side of the bearing seat III 11 is movably sleeved with a bearing seat I29, the inner side of the bearing seat I29 is movably sleeved with a supporting frame 12, the supporting frame 12 is movably sleeved on the outer side of the processing rod 6, the supporting frame 12 is located on one side, away from the fixed seat 5, of the bending position of the processing rod 6, the front side of the fixed plate 10 is fixedly provided with a supporting plate 26, the supporting plate 26 is located between the bearing seat III 11 and the outer wall of the bottom of the bearing seat II 8, the top of the supporting plate 26 is fixedly provided with a sliding plate 16, the top of the sliding plate 16 is fixedly provided with a guide block 17 near one end of the processing frame 9, the processing rod 6 is fixedly provided with a guide head 15, and a fixed rod 22 is fixedly installed at the central position of the blanking frame 21, a rotating rod 23 is movably sleeved on the outer side of the fixed rod 22, and a limiting rod 24 is fixedly installed on the surface of the blanking frame 21.
Four through holes are formed in the inner outer edge portion of the processing frame 9, cutters 19 are fixedly mounted in the four through holes in the outer edge portion, and the cutters 19 are evenly distributed in the middle of the through holes.
The outer wall of the feeding rod 7 is fixedly sleeved with a fixing ring 13, the fixing ring 13 is located on the outer side of the supporting frame 12 close to one side of the processing frame 9, the feeding rod 7 is located at one end, close to the processing frame 9, of the fixing ring 13, a cavity 20 is formed, the feeding rod is of a hollow structure, and a feeding opening 18 is formed in one end, close to the fixing ring 13, of the outer side of the feeding rod.
The surface of the fixing plate 10 is fixedly provided with a blanking groove 28, the blanking groove 28 is in an inclined state, and the highest point of the blanking groove is located at the edge of the lower right corner of the processing frame 9.
The outer wall of the processing rod 6 is fixedly sleeved with a limiting plate 14, and the limiting plate 14 is located on one side of the supporting frame 12 close to the processing frame 9.
The top of the rotating rod 23 is movably provided with a spring 25, and the tail end of the spring 25 is fixedly connected with the processing frame 9.
The top of the sliding plate 16 is concave, and the radius of the concave arc is larger than the maximum distance between the outer wall of the processing rod 6 and the center of the supporting frame 12.
The processing rod 6 and the feeding rod 7 are both V-shaped, the included angle is 90 degrees, and the included angles between the processing rod 6, the feeding rod 7 and the base 1 are both 45 degrees.
The outer wall fixed mounting of processing pole 6 has fixed key 27, and the one end and the gag lever post 24 fixed connection of fixed key 27, and add man-hour, the part of processing is the plastics material, fixed key 27 and the looks adaptation of keyway in waiting to process the part, the outside at fixed key 27 is cup jointed through the keyway activity that the inboard was seted up to the plastics part of waiting to process.
When the device is used, the motor 2 is started, the motor 2 enables the output shaft 3 to rotate, the fixed seat 5 is further enabled to rotate on the inner side of the bearing seat I4, the processing rod 6 is movably sleeved on the outer edge of the inner side of the fixed seat 5, the processing rod 6 revolves around the central position of the fixed seat 5, the gear to be processed is placed in the cavity 20, the plastic workpiece slides to the upper surface of the sliding plate 16 through the feeding port 18 under the action of gravity, the plastic workpiece is movably sleeved on the outer side of the guide head 15 due to the rotation of the processing rod 6, when the processing rod 6 continues to revolve around the center of the fixed seat 5, the outer wall of the plastic workpiece is driven to be attached to the outer wall of the guide block 17, the plastic workpiece is forced to be movably sleeved with the fixed key 27 on the outer side of the processing rod 6 through the key groove on the inner side, the plastic workpiece is movably sleeved on the outer, and the plastic workpiece revolves around the center of the fixed seat 5 along with the processing rod 6, when the processing rod 6 drives the plastic workpiece to rotate to the inner side of the processing frame 9, the cutter 19 is attached to the surface of the plastic workpiece and cut into spiral insections, when the processing rod 6 rotates to the position that the guide head 15 is positioned at one side of the processing frame 9 far away from the supporting frame 12, the plastic workpiece is ejected out, at the moment, the plastic workpiece is attached to the rotating rod 23 and drives the rotating rod 23 to rotate towards the direction far away from the limiting rod 24, when the processing rod 6 continues to rotate, the processing rod 6 is retracted, the rotating rod 23 is reset under the elastic action of the spring 25, namely reversely rotates, the outer wall of the plastic workpiece is attached to the outer wall of the rotating rod 23, the plastic workpiece is forced to stay at one side of the processing frame 9 far away from the supporting frame 12, the plastic workpiece is separated from the processing rod 6 and falls.
In summary, the following steps: through the rotation of motor 2, operating personnel only need place the machined part in the cavity of last flitch pole 17 one end in proper order, just can realize the purpose of automatic feeding, spiral insection processing, unloading, has both improved the efficiency of processing, has improved the security in the course of working again.
And finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (9)
1. The utility model provides a helical gear processing equipment, includes base (1), its characterized in that: the top of the base (1) is fixedly provided with a fixed plate (10), the upper left side of the front side of the fixed plate (10) is fixedly provided with a motor (2), the inner side of the motor (2) is movably provided with an output shaft (3), the tail end of the output shaft (3) is fixedly provided with a fixed seat (5), the outer side of the fixed seat (5) is movably sleeved with a bearing seat I (4) through a bearing, the outer side of the bearing seat I (4) is fixedly connected with the fixed plate (10), the fixed seat (5) is movably sleeved with four processing rods (6) with the same diameter through holes arranged on the inner side, the middle position of each processing rod (6) is bent, the inner side center position of the fixed seat (5) is movably sleeved with a feeding rod (7), and the outer side of one end, far away from the fixed seat (5), of each feeding rod (7), the processing frame (9) is movably sleeved at the outer side of the tail end of the processing rod (6), the outer side of the processing frame (9) is movably sleeved with a second bearing (30), the outer side of the second bearing (30) is movably sleeved with a second bearing seat (8), the outer side of the second bearing seat (8) is fixedly connected with a fixed plate (10), a third bearing seat (11) is fixedly installed at the front side of the fixed plate (10), a first bearing (29) is movably sleeved at the inner side of the third bearing seat (11), a supporting frame (12) is movably sleeved at the inner side of the first bearing (29), the supporting frame (12) is movably sleeved at the outer side of the processing rod (6), the supporting frame (12) is located at one side, away from the fixed seat (5), of the bending position of the processing rod (6), a supporting plate (26) is fixedly installed at the front side of the fixed plate (10), and the supporting plate (26) is located between the third bearing seat (11) and the outer, the top fixed mounting of backup pad (26) has slide (16), and slide (16) top is close to the one end fixed mounting that processes frame (9) and has guide block (17), processing pole (6) are close to the one end fixed mounting guide head (15) that processes frame (9), one side outer wall fixed mounting that support frame (12) was kept away from in processing frame (9) has unloading frame (21), and the central point of unloading frame (21) puts fixed mounting and has dead lever (22), bull stick (23) have been cup jointed in the outside activity of dead lever (22), the fixed surface of unloading frame (21) installs gag lever post (24).
2. A helical gear processing apparatus according to claim 1, wherein: four through-holes have been seted up altogether along the part outside the inside of processing frame (9), and in four through-holes of outer edge part, equal fixed mounting has cutter (19), and cutter (19) evenly distributed is in the middle part position department of through-hole.
3. A helical gear processing apparatus according to claim 1, wherein: the outer wall of the feeding rod (7) is fixedly sleeved with a fixing ring (13), the fixing ring (13) is located on the outer side, close to one side of the processing frame (9), of the supporting frame (12), the feeding rod (7) is located at one end, close to the processing frame (9), of the fixing ring (13), a cavity (20) is formed in the end, close to the processing frame (9), of the feeding rod (7), the feeding rod is of a hollow structure, and a feeding opening (18) is formed in one end, close to the fixing ring.
4. A helical gear processing apparatus according to claim 1, wherein: the surface of the fixing plate (10) is fixedly provided with a discharging groove (28), the discharging groove (28) is in an inclined state, and the highest point of the discharging groove is located at the lower right corner edge of the processing frame (9).
5. A helical gear processing apparatus according to claim 1, wherein: the outer wall of the processing rod (6) is fixedly sleeved with a limiting plate (14), and the limiting plate (14) is located on one side, close to the processing frame (9), of the supporting frame (12).
6. A helical gear processing apparatus according to claim 1, wherein: the top of the rotating rod (23) is movably provided with a spring (25), and the tail end of the spring (25) is fixedly connected with the processing frame (9).
7. A helical gear processing apparatus according to claim 1, wherein: the top of the sliding plate (16) is concave, and the radius of a concave arc is larger than the maximum distance between the outer wall of the processing rod (6) and the center of the supporting frame (12).
8. A helical gear processing apparatus according to claim 1, wherein: the processing rod (6) and the feeding rod (7) are both V-shaped, the included angle is 90 degrees, and the included angles between the processing rod (6), the feeding rod (7) and the base (1) are both 45 degrees.
9. A helical gear processing apparatus according to claim 1, wherein: the outer wall fixed mounting of processing pole (6) has fixed key (27), and the one end and gag lever post (24) fixed connection of fixed key (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010708547.2A CN111843053A (en) | 2020-07-22 | 2020-07-22 | Spiral gear machining equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010708547.2A CN111843053A (en) | 2020-07-22 | 2020-07-22 | Spiral gear machining equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111843053A true CN111843053A (en) | 2020-10-30 |
Family
ID=73001899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010708547.2A Withdrawn CN111843053A (en) | 2020-07-22 | 2020-07-22 | Spiral gear machining equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111843053A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB279597A (en) * | 1926-09-14 | 1927-11-03 | Alexander William Copland | Improvements in and relating to apparatus for truing toothed gears or other bodies having circular series of radiating surfaces by a grinding or lapping action |
| US3552167A (en) * | 1968-09-26 | 1971-01-05 | Lear Siegler Inc | Gear rolling equipment |
| CN204397081U (en) * | 2015-01-09 | 2015-06-17 | 王海全 | A kind of small mode number spiral bevel gear combination type milling cutter |
| CN207077049U (en) * | 2017-07-28 | 2018-03-09 | 北方民族大学 | Numerical control internal tooth gear honing machine top gem of a girdle-pendant wheel carrier |
| CN208162784U (en) * | 2017-12-27 | 2018-11-30 | 湖南中大创远数控装备有限公司 | For processing the cutterhead of spiral bevel gear product |
-
2020
- 2020-07-22 CN CN202010708547.2A patent/CN111843053A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB279597A (en) * | 1926-09-14 | 1927-11-03 | Alexander William Copland | Improvements in and relating to apparatus for truing toothed gears or other bodies having circular series of radiating surfaces by a grinding or lapping action |
| US3552167A (en) * | 1968-09-26 | 1971-01-05 | Lear Siegler Inc | Gear rolling equipment |
| CN204397081U (en) * | 2015-01-09 | 2015-06-17 | 王海全 | A kind of small mode number spiral bevel gear combination type milling cutter |
| CN207077049U (en) * | 2017-07-28 | 2018-03-09 | 北方民族大学 | Numerical control internal tooth gear honing machine top gem of a girdle-pendant wheel carrier |
| CN208162784U (en) * | 2017-12-27 | 2018-11-30 | 湖南中大创远数控装备有限公司 | For processing the cutterhead of spiral bevel gear product |
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Address after: 510000 Huancui community, intersection of xiajie Avenue and Yangjiao street, Zengcheng District, Guangzhou City, Guangdong Province Applicant after: Song Liuliu Address before: 510000 Room 204, building 2, hailun spring community, 15 Yongshun Avenue East, Zengcheng District, Guangzhou City, Guangdong Province Applicant before: Song Liuliu |
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201030 |