CN109652922B - Separate type inverted double-thread lock stitch sewing device - Google Patents
Separate type inverted double-thread lock stitch sewing device Download PDFInfo
- Publication number
- CN109652922B CN109652922B CN201811414146.5A CN201811414146A CN109652922B CN 109652922 B CN109652922 B CN 109652922B CN 201811414146 A CN201811414146 A CN 201811414146A CN 109652922 B CN109652922 B CN 109652922B
- Authority
- CN
- China
- Prior art keywords
- module
- double
- needle
- shuttle
- threading
- 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
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B1/00—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both
- D05B1/08—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both for making multi-thread seams
- D05B1/12—Lock-stitch seams
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B49/00—Take-up devices, e.g. levers, for the needle thread
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B55/00—Needle holders; Needle bars
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/08—Loop takers, e.g. loopers for lock-stitch sewing machines
- D05B57/10—Shuttles
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B87/00—Needle- or looper- threading devices
- D05B87/02—Needle- or looper- threading devices with mechanical means for moving thread through needle or looper eye
Abstract
The invention relates to a separated type inverted double-thread lock stitch sewing device, which comprises a needle thread hooking module and a threading thread hooking module, wherein the threading thread hooking module and the needle thread hooking module are arranged in a separated mode and respectively adopt independent driving mechanisms, the needle thread hooking module is arranged below cloth to be sewn and used for finishing the function of needle thread hooking, and the threading thread hooking module is arranged above the cloth to be sewn and used for hooking thread and flying shuttle threading. The invention adopts a separated type inverted structure, the needle punching thread leading module is arranged below the cloth to be sewn, the threading thread hooking module is arranged above the cloth to be sewn, the overall dimension of the sewing module in the conical die is reduced, and the structure with larger dimension is arranged outside the die. The invention can be applied to large-size conical three-dimensional sewing, and solves the problems that the inner space of the conical die groove is smaller, the conical die groove has certain sealing performance and the sewing size is too large under the condition. The sewn stitches are two equidistant double-line lock-type stitches, and the sewing strength can be ensured.
Description
Technical Field
The invention relates to the field of sewing devices, in particular to a split type inverted double-thread lock stitch sewing device.
Background
At present, single-side sewing technology is mainly adopted for three-dimensional sewing, wherein the single-side sewing technology of OSS and the single-side sewing technology of Aerotis 03S are adopted, the single-side sewing technology of OSS forms single-thread chain type sewing stitches, and the stitches of the Aerotis 03S single-side sewing technology are buried in the fabric and are not mutually locked.
At present, in a conventional bilateral sewing device, components below a sewing cloth are mainly a rotating shuttle and a related transmission structure, and due to the fact that the size of a sewing groove of a three-dimensional mold is small, the structure below the cloth in the conventional bilateral sewing technology cannot be placed in the sewing groove of the three-dimensional mold. The positions of the components above and below the cloth in the conventional bilateral sewing technology correspond, and if the sewing component is applied to large-scale conical sewing, the sewing component of the cloth needs to be matched with the size of the conical mould, so that the size and the volume of the sewing component are overlarge, and the sewing component is not suitable for industrial mass production. Therefore, the conventional bilateral suturing device cannot be applied to large-sized three-dimensional suturing.
Disclosure of Invention
The invention aims to solve the technical problem of providing a separated type inverted double-thread lock stitch sewing device.
The technical scheme for solving the technical problems is as follows:
the utility model provides a device is made up to disconnect-type flip-chip double-thread lock-stitch seam, includes that acupuncture lead wire module and threading collude the line module, threading collude the line module and adopt the disconnect-type setting and adopt independent actuating mechanism separately with acupuncture lead wire module, acupuncture lead wire module sets up in the below of treating sewing cloth, and is used for pricking sewing cloth with two needle beds and drives two needle beds and move back the below, threading colludes the line module setting in the top of treating sewing cloth, and is used for colluding the line and fly the shuttle threading.
Furthermore, the needling lead module comprises a shell, a double-lead needle group, a double-needle seat, a needling push block and a needling cylinder, wherein a needle hole is formed in the upper surface of the shell, the double-lead needle group is positioned below the needle hole and fixed above the double-needle seat, the double-lead needle group comprises two sewing needles which are parallel to each other, the double-needle seat is a trapezoidal block, the needling push block is a trapezoidal block or a triangular block, the short edge of the double-needle seat is placed downwards, the inclined plane of the needling push block is attached to the inclined plane of the double-needle seat, grooves are formed in the left side and the right side of the double-needle seat, which are in contact with the shell, convex strips matched with the grooves are arranged on the inner side of the shell, and the convex strips are vertical to the ground of the shell and used; the acupuncture cylinder is used for pushing the double needle seats to move up and down by pushing the acupuncture push block to move horizontally, and the double needle seats are used for pushing the double lead needle group to penetrate through the needle holes in the upper surface of the shell.
Furthermore, a compression spring is sleeved outside the sewing needle.
Furthermore, the threading thread hooking module comprises a flying shuttle module and a thread hooking module, the flying shuttle module is used for flying shuttle threading, the flying shuttle module comprises a left shuttle mechanism, a right shuttle mechanism, a flying shuttle box and a flying shuttle driving cylinder, the left shuttle mechanism and the right shuttle mechanism are both arranged in the flying shuttle box, the left shuttle mechanism and the right shuttle mechanism are symmetrical relative to the needling thread leading module, and the flying shuttle driving cylinder is used for driving the left shuttle mechanism and the right shuttle mechanism; and the left shuttle mechanism and the right shuttle mechanism respectively comprise a flying shuttle strip, a flying shuttle frame and a flying shuttle.
Further, the thread hooking module is used for hooking threads, the thread hooking module comprises a left thread hooking mechanism and a right thread hooking mechanism which are symmetrical relative to the needling lead module, the left thread hooking mechanism and the right thread hooking mechanism respectively comprise a crochet hook, a crochet hook seat, a crochet hook driving cylinder and a mounting plate, the crochet hook driving cylinder and the crochet hook seat are both mounted on the mounting plate, and the crochet hook is mounted on a driving head of the crochet hook driving cylinder and penetrates through holes in the double crochet hooks.
Furthermore, the needle punching thread leading module is driven by a rapier belt, the rapier belt is arranged below the cloth to be sewn, and a driving structure of the rapier belt is arranged outside the conical die.
Further, the threading colludes line module and is driven by external robot, the threading colludes line module still includes external robot mounting panel.
The invention has the beneficial effects that: the invention adopts a separated type inverted structure, the needle punching lead module is arranged below the cloth to be sewn, the threading hook module and the auxiliary thread supply, picking and transmission structure are arranged above the cloth to be sewn outside the mold, the overall dimension of the sewing module in the conical mold is reduced, and the structure with larger space requirement is arranged outside the mold, so that the sewing structure is more in line with the actual sewing requirement. The invention can be applied to large-size conical three-dimensional sewing, and solves the problems that the inner space of the conical die groove is smaller, the space has certain sealing property and the sewing size is too large under the condition. The sewn stitches are two equidistant double-line lock-type stitches, and the sewing strength can be ensured.
Drawings
FIG. 1 is a schematic perspective view of the present invention in a working state;
FIG. 2 is a schematic front view of the present invention in an operating state;
FIG. 3 is a schematic side view of the present invention in its working state;
FIG. 4 is a schematic diagram of the overall structure of the present invention;
FIG. 5 is a schematic cross-sectional view of a needle punched lead module;
fig. 6 is a schematic top view of the needle-punched lead module without the upper surface cover plate;
fig. 7 is a schematic structural view of the threading hook module.
In the drawings, the components represented by the respective reference numerals are listed below:
1. needling a lead module; 11. a housing; 12. a double-lead needle group; 13. double needle seats; 14. needling a push block; 15. a needling cylinder; 16. a sword belt; 17. a groove; 18. a convex strip; 21. a shuttle bar and a shuttle frame; 22. a shuttle flying; 23. a shuttle box; 24. the flying shuttle drives the air cylinder; 25. a robot mounting plate; 31. hooking a needle; 32. a needle hooking base; 33. the crochet hook drives the air cylinder; 2. a flying shuttle module; 3. a thread hooking module; 4. cloth to be sewn
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1-4, a device is made up to disconnect-type flip-chip double-thread lock stitch, includes that acupuncture lead wire module 1 and threading collude the line module, threading collude line module and acupuncture lead wire module 1 adopt the disconnect-type setting and adopt independent actuating mechanism separately, acupuncture lead wire module 1 sets up in the below of waiting to sew up cloth 4, and is used for pricking sewing cloth and driving double-needle seat 13 and move back the below with double-needle seat 13, threading colludes the line module setting in the top of waiting to sew up cloth 4, and is used for colluding the line and fly shuttle threading.
As shown in fig. 5 and 6, the needle punching threading module 1 includes a housing 11, a double-threading needle group 12, a double needle base 13, a needle punching push block 14, and a needle punching cylinder 15, a needle hole is formed on the upper surface of the housing 11, the double-threading needle group 12 is located below the needle hole and fixed above the double needle base 13, the double-threading needle group 12 includes two sewing needles parallel to each other, the double needle base 13 is a trapezoidal block, the needle punching push block 14 is a trapezoidal block or a triangular block, the short side of the double needle base 13 is placed downward, the inclined surface of the needle punching push block 14 is attached to the inclined surface of the double needle base 13, grooves 17 are formed on the left and right sides of the double needle base 13 contacting the housing 11, a protruding strip 18 matched with the groove 17 is arranged on the inner side of the housing 11, and the protruding strip 18 is perpendicular to the ground of the housing 11 for guiding the double needle base 13; the acupuncture cylinder 15 is used for pushing the double needle stand 13 to move up and down by pushing the acupuncture push block 14 to move horizontally, and the double needle stand 13 is used for pushing the double lead needle group 12 to penetrate through a needle hole in the upper surface of the shell 11.
And a compression spring is sleeved outside the sewing needle.
As shown in fig. 7, the threading thread hooking module comprises a flying shuttle module 2 and a thread hooking module 3, the flying shuttle module 2 is used for flying shuttle threading, the flying shuttle module 2 comprises a left shuttle mechanism, a right shuttle mechanism, a flying shuttle box 23 and a flying shuttle driving cylinder 24, the left shuttle mechanism and the right shuttle mechanism are both arranged in the flying shuttle box 23, the left shuttle mechanism and the right shuttle mechanism are symmetrical relative to the needling thread leading module 1, and the flying shuttle driving cylinder 24 is used for driving the left shuttle mechanism and the right shuttle mechanism; the left shuttle mechanism and the right shuttle mechanism both comprise a fly shuttle bar, a fly shuttle frame 21 and a fly shuttle 22.
The collude line module 3 and be used for colluding the line, collude line module 3 includes colluding the line mechanism and colluding the line mechanism on the right side for the left side of acupuncture lead wire module 1 symmetry, a left side colludes line mechanism and colludes the line mechanism on the right side and all includes crochet hook 31, crochet hook seat 32, crochet hook drive cylinder 33 and mounting panel, the crochet hook drives cylinder 33 and crochet hook seat 32 and all installs on the mounting panel, crochet hook 31 is installed and is driven overhead and pass the through-hole on the hook duplex seat 13 of cylinder 33.
The needle punching threading module 1 is driven by a sword belt 16, and the sword belt 16 is arranged below the cloth 4 to be sewn.
The threading colludes line module by the drive of external robot, the threading colludes line module still includes external robot mounting panel 25.
When the large-size conical three-dimensional sewing example is used, cloth to be sewn is sleeved on the outer side of a conical die, ends to be sewn on two sides of the cloth to be sewn are located right above a groove on the outer side of the conical die, sewing threads are threaded on two sewing needles of a double-lead-needle group, a sword belt and a needle punching lead module are placed in the groove on the upper surface of the conical die below the cloth to be sewn, a robot mounting plate of the threading hook module is mounted on an external robot, the threading hook module is moved to the position right above the cloth to be sewn of the needle punching lead module, and then sewing is started, and the specific working steps are as follows;
(1) acupuncture and moxibustion
The needle punching leading module works, the needle punching cylinder pushes the needle punching push block to move horizontally so as to push the double needle seats to move upwards, the double needle seats push the double leading needle group upwards to penetrate through a needle hole in the upper surface of the shell, and the needle heads of the double leading needle group drive sewing threads to penetrate through sewing cloth;
(2) line and hook
The left thread hooking mechanism and the right thread hooking mechanism of the thread hooking module push the hook needle to approach the double-lead needle group to hook the thread loop on the sewing needle and stretch outwards to form a larger thread loop;
(3) threading the wire
The flying shuttle module works, and the flying shuttle extends out to penetrate through the large wire ring;
(4) lock wire
And a part of the hook needle which works in the thread hooking module extends forwards, the needling cylinder drives the hook needle to retreat, the needling cylinder retreats, the double-thread needle retreats under the action of the compression spring, the thread ring falls off from the hook needle, simultaneously the thread picking is tightened, the bottom thread of the flying shuttle is locked, the hook needle retreats, the flying shuttle retreats, and a sewing node is completed.
(5) Continue to stitch the next node
The sword belt drives the needle thread module to move a sewing position, the external robot drives the thread hooking module to move a sewing position in the same direction, and the steps are repeated to sew until all sewing is completed.
The invention adopts a separated type inverted structure, the needle punching lead module is arranged below the cloth to be sewn, the threading hook module and the auxiliary thread supply, picking and transmission structure are arranged above the cloth to be sewn outside the mold, the overall dimension of the sewing module in the conical mold is reduced, and the structure with larger space requirement is arranged outside the mold, so that the sewing structure is more in line with the actual sewing requirement. The invention is applied to large-size conical three-dimensional sewing, and solves the problems that the inner space of the conical die groove is smaller, the space has certain sealing property and the sewing size is too large under the condition. The sewn stitches are two equidistant double-line lock-type stitches, and the sewing strength can be ensured.
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 fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The split type inverted double-thread lock stitch sewing device is characterized by comprising a needling lead module (1) and a threading lead module, wherein the threading lead module and the needling lead module (1) are separately arranged and respectively adopt independent driving mechanisms, the needling lead module (1) is arranged below a cloth (4) to be sewn and is used for penetrating the sewing cloth through a double needle seat (13) and driving the double needle seat (13) to retreat from the lower part, and the threading lead module is arranged above the cloth (4) to be sewn and is used for threading through thread hooking and shuttle flying;
the acupuncture lead module (1) comprises a shell (11), a double lead needle group (12), a double needle seat (13), an acupuncture push block (14) and an acupuncture cylinder (15), wherein a needle hole is formed in the upper surface of the shell (11), the double lead needle group (12) is positioned below the needle hole and fixed above the double needle seat (13), the double lead needle group (12) comprises two sewing needles which are parallel to each other, the double needle seat (13) is a trapezoidal block, the acupuncture push block (14) is a trapezoidal block or a triangular block, the short edge of the double needle seat (13) is placed downwards, the inclined plane of the acupuncture push block (14) is attached to the inclined plane of the double needle seat (13), grooves (17) are formed in the left side and the right side of the double needle seat (13) in contact with the shell (11), protruding strips (18) matched with the grooves (17) are arranged on the inner side of the shell (11), and the protruding strips (18) are perpendicular to the ground of the shell (11), used for guiding the double needle base (13); the acupuncture cylinder (15) is used for pushing the double needle seats (13) to move up and down by pushing the acupuncture push block (14) to move horizontally, and the double needle seats (13) are used for pushing the double lead needle group (12) to penetrate through a needle hole in the upper surface of the shell (11).
2. The split flip-chip double-thread lock-stitch sewing apparatus according to claim 1, wherein a compression spring is further sleeved outside the sewing needle.
3. The split flip-chip double-thread lockstitch sewing apparatus according to claim 1, wherein the threading hook module comprises a fly shuttle module (2) and a hook module (3), the fly shuttle module (2) is used for fly shuttle threading, the fly shuttle module (2) comprises a left shuttle mechanism, a right shuttle mechanism, a fly shuttle box (23) and a fly shuttle driving cylinder (24), the left and right shuttle mechanisms are all arranged in the fly shuttle box (23), the left and right shuttle mechanisms are symmetrical with respect to the needle threading module (1), and the fly shuttle driving cylinder (24) is used for driving the left and right shuttle mechanisms; the left shuttle mechanism and the right shuttle mechanism respectively comprise a flying shuttle strip, a flying shuttle frame (21) and a flying shuttle (22).
4. The split type flip double-thread lockstitch sewing device according to claim 3, wherein the thread hooking module (3) is used for hooking threads, the thread hooking module (3) comprises a left thread hooking mechanism and a right thread hooking mechanism which are symmetrical with respect to the needle punching lead module (1), the left thread hooking mechanism and the right thread hooking mechanism each comprise a crochet hook (31), a crochet hook seat (32), a crochet hook driving cylinder (33) and a mounting plate, the crochet hook driving cylinder (33) and the crochet hook seat (32) are both mounted on the mounting plate, and the crochet hook (31) is mounted on a driving head of the crochet hook driving cylinder (33) and passes through holes on the crochet hook double-needle seat (13).
5. Split flip-chip double-thread lock-stitch sewing device according to claim 1, characterized in that the needle threading module (1) is driven by a rapier tape (16), the rapier tape (16) being arranged below the cloth (4) to be sewn.
6. A split inverted double-thread lock-stitch sewing apparatus according to claim 1, wherein the threading hook module is driven by an articulated robot, the threading hook module further comprising an articulated robot mounting plate (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811414146.5A CN109652922B (en) | 2018-11-26 | 2018-11-26 | Separate type inverted double-thread lock stitch sewing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811414146.5A CN109652922B (en) | 2018-11-26 | 2018-11-26 | Separate type inverted double-thread lock stitch sewing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109652922A CN109652922A (en) | 2019-04-19 |
| CN109652922B true CN109652922B (en) | 2021-02-19 |
Family
ID=66112321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811414146.5A Active CN109652922B (en) | 2018-11-26 | 2018-11-26 | Separate type inverted double-thread lock stitch sewing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109652922B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112853627A (en) * | 2021-01-08 | 2021-05-28 | 广州市宗顺服装贸易有限公司 | Knitted sports wool fabric, processing system and processing method |
| CN113718433B (en) * | 2021-09-10 | 2022-11-08 | 安徽高梵电子商务有限公司 | A template sewing machine for down coat |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201738118U (en) * | 2009-11-27 | 2011-02-09 | 中国标准缝纫机公司上海惠工缝纫机三厂 | Lockstitch forming mechanism for novel arm-type horizontal-sending sewing machine |
| JP5086730B2 (en) * | 2007-08-07 | 2012-11-28 | 株式会社鈴木製作所 | 1 thread lock sewing hand stitch sewing machine |
| CN205368670U (en) * | 2016-01-20 | 2016-07-06 | 天津宝盈电脑机械有限公司 | Facial height precision sewing machine structure by a wide margin |
| CN106676761A (en) * | 2016-12-27 | 2017-05-17 | 重庆圣泊伦节能环保科技有限公司 | Heat preservation quilt sewing device and method |
| CN107012595A (en) * | 2017-05-17 | 2017-08-04 | 武汉理工大学 | Composite Patches two-wire stitching devices |
| CN206666789U (en) * | 2017-04-05 | 2017-11-24 | 鲁成玉 | A kind of shuttle multi-needle quilter thick line sewing device |
-
2018
- 2018-11-26 CN CN201811414146.5A patent/CN109652922B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5086730B2 (en) * | 2007-08-07 | 2012-11-28 | 株式会社鈴木製作所 | 1 thread lock sewing hand stitch sewing machine |
| CN201738118U (en) * | 2009-11-27 | 2011-02-09 | 中国标准缝纫机公司上海惠工缝纫机三厂 | Lockstitch forming mechanism for novel arm-type horizontal-sending sewing machine |
| CN205368670U (en) * | 2016-01-20 | 2016-07-06 | 天津宝盈电脑机械有限公司 | Facial height precision sewing machine structure by a wide margin |
| CN106676761A (en) * | 2016-12-27 | 2017-05-17 | 重庆圣泊伦节能环保科技有限公司 | Heat preservation quilt sewing device and method |
| CN206666789U (en) * | 2017-04-05 | 2017-11-24 | 鲁成玉 | A kind of shuttle multi-needle quilter thick line sewing device |
| CN107012595A (en) * | 2017-05-17 | 2017-08-04 | 武汉理工大学 | Composite Patches two-wire stitching devices |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109652922A (en) | 2019-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109652922B (en) | Separate type inverted double-thread lock stitch sewing device | |
| US2298246A (en) | Machine for attaching articles | |
| US3173390A (en) | Chain stitch device for lock stitch sewing machines | |
| US3253560A (en) | Chain stitch devices for lock stitch sewing machines | |
| JPS59160488A (en) | Composite hemstitch seam and formation thereof | |
| US3083661A (en) | Thread pull-off for sewing machines | |
| US3301206A (en) | Chain-stitch sewing machine | |
| CN109667070A (en) | A kind of lockstitch button holder | |
| JPS6060895A (en) | Winding-up method of yarn by bobbin | |
| US3173391A (en) | Chain stitch device for lock stitch sewing machines | |
| CN220057249U (en) | Button head buttonhole serging presser foot structure | |
| CN212771292U (en) | Double-row quilting and embroidering machine | |
| US2580724A (en) | Sewing machine and method of sewing | |
| CN216237574U (en) | Follow-on fabric weaving equipment | |
| CN207498609U (en) | A kind of orientable computer sewing machine | |
| JPS5822697Y2 (en) | Single thread chainstitch device | |
| ES338504A1 (en) | Lock-stitch sewing machine convertible to a chain stitch sewing machine | |
| JPH0331271Y2 (en) | ||
| KR101987649B1 (en) | chain stitch sewing machine | |
| US1370528A (en) | Method and mechanism for sewing reverse purl | |
| US2599418A (en) | Stitch-forming method and apparatus | |
| CN109972295A (en) | A kind of sewing device that can automatically continuously sew keyhole | |
| CN103320970A (en) | Unidirectional-stitch sewing machine | |
| CN2493631Y (en) | Multi-needle position structure for sewing machine with shuttle | |
| JPH0647426Y2 (en) | Needle thread judgment of safety sewing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Shilin Inventor after: Gong Wenchen Inventor after: Yang Jun Inventor after: Tang Ke Inventor before: Wu Shilin Inventor before: Yang Jun Inventor before: Gong Wenchen Inventor before: Tang Ke |
|
| CB03 | Change of inventor or designer information |