CN114229491A - Board feeding device of PCB production line - Google Patents
Board feeding device of PCB production line Download PDFInfo
- Publication number
- CN114229491A CN114229491A CN202210185967.6A CN202210185967A CN114229491A CN 114229491 A CN114229491 A CN 114229491A CN 202210185967 A CN202210185967 A CN 202210185967A CN 114229491 A CN114229491 A CN 114229491A
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- Prior art keywords
- plate
- feeding
- cylinder
- pushing
- groove
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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
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G59/00—De-stacking of articles
- B65G59/02—De-stacking from the top of the stack
- B65G59/026—De-stacking from the top of the stack with a stepwise upward movement of the stack
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/82—Rotary or reciprocating members for direct action on articles or materials, e.g. pushers, rakes, shovels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/02—Articles
- B65G2201/0214—Articles of special size, shape or weigh
- B65G2201/022—Flat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0208—Control or detection relating to the transported articles
- B65G2203/0241—Quantity of articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/04—Detection means
- B65G2203/042—Sensors
- B65G2203/044—Optical
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
The invention discloses a board loading device of a PCB board production line, which comprises a board stack feeding roller, an upper pushing mechanism, a groove column and a single-piece feeding roller which are arranged in sequence from front to back, wherein the board stack feeding roller is horizontally arranged, the upper pushing mechanism comprises an upper air cylinder and an upper material plate, an air cylinder rod of the upper air cylinder is arranged along the vertical direction, the upper material plate is horizontally arranged at the top of the air cylinder rod of the upper air cylinder, the feeding side of the upper material plate is adjacent to the discharging side of the board stack feeding roller, the lowest height of the top surface of the upper material plate is lower than the height of the top surface of the board stack feeding roller, the groove column is vertically arranged on the discharging side of the feeding plate, a vertical groove of the groove column is arranged on one side connected with the feeding mechanism, the discharging side of the feeding plate is clamped in the vertical groove of the groove column, a single plate discharging port is arranged on the upper portion of the vertical groove of the groove column, the discharging side of the single plate discharging port is connected with the feeding side of the single plate feeding roller, and a horizontal feeding mechanism is further arranged above the feeding plate. The problem of current PCB board feed mechanism damage the PCB board easily during the upper plate is solved.
Description
Technical Field
The invention relates to the field of PCB production equipment, in particular to a board loading device of a PCB production line.
Background
At present, a plate loading machine separates stacked PCB plates in a rolling mode, and when clamping and pressing are carried out, an inclination force generated by the plate loading machine forms a component force in a vertical direction, and the component force can extrude the PCB plates; meanwhile, when the two rollers roll, the PCB moves forwards to enter the transmission track in a friction force mode, if the friction force of the PCB above drives the PCB below to act together, only one PCB is allowed to pass through by adjusting the height limiting gap between the two rollers, and then the two PCBs are extruded at the rollers. Therefore, the friction damage of the PCB surface is easily caused, the thin PCB cannot be effectively separated, and the risk of breaking damage exists, and in order to overcome the defects, an enterprise must arrange a staff to perform manual inspection in front of a machine.
Disclosure of Invention
The invention aims to provide a feeding device of a PCB production line, which solves the problem that the PCB is easy to damage when the PCB is fed by the traditional PCB feeding mechanism.
In order to solve the technical problems, the invention adopts the following technical scheme:
a plate feeding device of a PCB production line comprises a plate stack feed roller, a plate feeding pushing mechanism, a groove column and a single plate feed roller which are sequentially arranged from front to back, wherein the plate stack feed roller is horizontally arranged, the plate feeding pushing mechanism comprises a feeding cylinder and a feeding plate, a cylinder rod of the feeding cylinder is arranged along the vertical direction, the feeding plate is horizontally arranged at the top of the cylinder rod of the feeding cylinder, the feeding side of the feeding plate is adjacent to the discharging side of the plate stack feed roller, the lowest height of the top surface of the feeding plate is lower than the height of the top surface of the plate stack feed roller, the groove column is vertically arranged at the discharging side of the feeding plate, a vertical groove of the groove column is arranged at one side connected with the plate feeding pushing mechanism, the discharging side of the feeding plate is clamped in a vertical groove of the groove column, a single plate discharging port is arranged at the upper part of the vertical groove of the groove column, the discharging side of the single plate discharging port is connected with the feeding side of the single plate feed roller, and the single plate discharging port is higher than the top surface of the single plate feed roller, and a horizontal pushing mechanism is also arranged at the position over the feeding plate and opposite to the single plate discharge hole.
When loading the PCB, the PCB stack is fed to the upper pushing mechanism by the board stack pushing roller, the PCB positioned at the uppermost layer of the board stack is just opposite to the single board discharge port of the slot column, under the action of the horizontal pushing mechanism, the PCB at the uppermost layer is pushed to the single board discharge port, then the PCB is fed to the feeding end of the single board feeding roller from the single board discharge port discharge end, after the PCB at the uppermost layer is fed to the single board feeding roller, the horizontal pushing mechanism is reset, the loading cylinder starts to work to push the loading plate upwards, so that the second PCB is just opposite to the single board discharge port of the slot column, then the horizontal pushing mechanism repeats the previous actions to complete the single board conveying of the second PCB, after the whole PCB stack is sequentially loaded, the loading of the next PCB is carried out, the PCB is not easy to be damaged due to the absence of the extrusion of the two clamping rollers, and one end of the loading plate is inserted in the vertical slot column, so that the loading plate is stably moved when being pushed upwards by the loading cylinder, two groove columns can be arranged, and the distance between the two groove columns is adjusted to adapt to PCBs with different sizes.
As a further preferable mode of the present invention, the plate stack feed roller is provided with limit baffles on both sides.
Can play a limiting role.
As a further preferred aspect of the present invention, the horizontal pushing mechanism includes a horizontal pushing cylinder and a pushing plate, the horizontal pushing cylinder is horizontally disposed, a cylinder rod of the horizontal pushing cylinder faces the single plate discharge port, a back surface of the pushing plate is connected to the cylinder rod of the horizontal pushing cylinder, a front surface of the pushing plate is provided with a spring pin and a pushing bar, and the pushing bar is connected to the pushing plate through the spring pin.
The horizontal pushing cylinder controls the push plate to move left and right to be suitable for PCBs with different lengths, and after the push plate reaches a fixed position, the PCB is pushed into the single plate discharge hole through the pushing strip connected with the spring pin.
As a further preferred aspect of the present invention, the single sheet feeding roller is disposed on the upper surface of the processing cabinet, and the upper end of the groove column is provided with a platen, which is supported by the support column.
As a further preferred aspect of the present invention, horizontal plates are fixed to the rear ends of the grooved columns at upper and lower positions of the single plate discharge port, an auxiliary cylinder is provided on the horizontal plates, and an output shaft of the auxiliary cylinder is fixed with a roller through a pressing plate.
When the PCB is clamped at the single board discharge port, the upper pressing plate and the lower pressing plate are pushed to the PCB by the auxiliary cylinder, and then the PCB is conveyed away from the single board discharge port under the action of the rollers on the pressing plates.
As a further preferred aspect of the present invention, an infrared counter is disposed at the discharge port of the single board.
Counting can be achieved.
Compared with the prior art, the invention can at least achieve one of the following beneficial effects:
1. the microcomputer control, the job is stable and reliable.
2. Through the arrangement of the push plate and the single board discharge port, only one PCB board passes through the single board discharge port, so that the single boards on the single feeding roller are tiled, and compared with a traditional rolling and tiling mode, the PCB receiving pressure is not large, and the quality of the PCB board is ensured; and when tiling, the spacing between the adjacent PCB boards on the monolithic feed roller is unanimous, and the tiling is effectual.
3. The arrangement of the auxiliary cylinder and the roller ensures that the PCB can smoothly pass through the veneer discharge hole.
4. The built-in push pedal mechanism of material loading machine avoids buying the push pedal machine alone.
5. An infrared counter is arranged, so that production statistics is facilitated; the device is provided with an R232 signal communication interface and can be connected with other machines in a line.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of a horizontal pushing mechanism.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that the products of the present invention conventionally lay out when in use, or orientations or positional relationships that are conventionally understood by those skilled in the art, which are merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Specific example 1:
FIG. 1 and FIG. 2 show a board loading device of a PCB production line, comprising a board stacking feed roller 1, a board loading mechanism 2, a groove column 3 and a single sheet feed roller 4, which are arranged in sequence from front to back, wherein the board stacking feed roller 1 is horizontally arranged, the board stacking feed roller 2 comprises a feed cylinder 21 and a feed plate 22, a cylinder rod of the feed cylinder 21 is arranged along a vertical direction, the feed plate 22 is horizontally arranged at the top of the cylinder rod of the feed cylinder 21, the feed side of the feed plate 22 is adjacent to the discharge side of the board stacking feed roller 1, the lowest height of the top surface of the feed plate 22 is lower than that of the top surface of the board stacking feed roller 1, the groove column 3 is vertically arranged at the discharge side of the feed plate 22, a vertical groove of the groove column 3 is arranged at one side connected with the board loading feed mechanism 2, the discharge side of the feed plate 22 is clamped in the vertical groove of the groove column 3, a single board discharge port is arranged at the upper part of the vertical groove of the groove column 3, the discharging side of the single plate discharging port is connected with the feeding side of the single plate feeding roller 4, the height of the single plate discharging port is higher than that of the top surface of the single plate feeding roller 4, and a horizontal pushing mechanism 5 is further arranged at a position, right opposite to the single plate discharging port, above the feeding plate 22.
When the board is loaded, the PCB stack is fed to the upper pushing mechanism through the board stack pushing roller, the PCB positioned at the uppermost layer of the board stack is aligned with the single board discharge hole of the groove column, under the action of the horizontal pushing mechanism, the PCB on the uppermost layer is pushed to the single board discharge port and then is sent to the single sheet feeding roller feeding end from the single board discharge port discharge end, when the PCB on the uppermost layer is sent to the single-sheet feeding roller, the horizontal pushing mechanism is reset, the feeding cylinder starts to work to push the feeding plate upwards, so that the second PCB is aligned to the single-sheet discharging hole of the groove column, then the horizontal pushing mechanism repeats the previous actions to finish the single board conveying of the second PCB, and after the whole pile of PCBs is finished in sequence, the next pile of PCBs is fed, because the extrusion of two clamping roller has not been had, the difficult impaired of PCB board to because the one end of material loading board is pegged graft in the vertical inslot of groove post, it is moved stably when being pushed up by the material loading cylinder.
Specific example 2:
in this embodiment, a limit baffle is additionally provided on the basis of specific embodiment 1, and limit baffles are provided on both sides of the sheet stack feed roller 1.
Can play a limiting role.
Specific example 3:
in this embodiment, a horizontal pushing mechanism is further described on the basis of specific embodiment 1, the horizontal pushing mechanism 5 includes a horizontal pushing cylinder 51 and a push plate 52, the horizontal pushing cylinder 51 is horizontally disposed, a cylinder rod of the horizontal pushing cylinder 51 is opposite to a discharge port of a single plate, a back surface of the push plate 52 is connected to the cylinder rod of the horizontal pushing cylinder 51, a front surface of the push plate 52 is provided with a spring pin 521 and a push bar 522, and the push bar 522 is connected to the push plate 52 through the spring pin 521.
The horizontal pushing cylinder controls the push plate to move left and right to be suitable for PCBs with different lengths, and after the push plate reaches a fixed position, the PCB is pushed into the single plate discharge hole through the pushing strip connected with the spring pin.
Specific example 4:
in this embodiment, a single sheet feeding roller 4 is further described on the basis of specific embodiment 1, the single sheet feeding roller 4 is arranged on the upper surface of the processing cabinet, a platen 6 is arranged at the upper end of the groove column 3, and the platen 6 is supported by a support column 7.
Specific example 5:
in this embodiment, a roller 10 is additionally provided on the basis of specific embodiment 1, horizontal plates 8 are fixed at upper and lower positions of a single plate discharge hole at the rear end of the grooved column 3, an auxiliary cylinder 9 is provided on the horizontal plate 8, and the roller 10 is fixed on an output shaft of the auxiliary cylinder 9 through a pressing plate.
When the PCB is clamped at the single board discharge port, the upper pressing plate and the lower pressing plate are pushed to the PCB by the auxiliary cylinder, and then the PCB is conveyed away from the single board discharge port under the action of the rollers on the pressing plates.
Specific example 6:
in this embodiment, an infrared counter is added on the basis of specific embodiment 1, and an infrared counter is disposed at the discharge port of the single board.
Counting can be achieved.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a last board device of PCB board production line, includes that the board that sets gradually from the front to the back piles feed roller (1), goes up pushing equipment (2), groove post (3) and monolithic feed roller (4), its characterized in that: the plate stack feed roller (1) is horizontally arranged, the feeding pushing mechanism (2) comprises a feeding cylinder (21) and a feeding plate (22), a cylinder rod of the feeding cylinder (21) is arranged along the vertical direction, the feeding plate (22) is horizontally arranged at the top of the cylinder rod of the feeding cylinder (21), the feeding side of the feeding plate (22) is closely adjacent to the discharging side of the plate stack feed roller (1), the lowest height of the top surface of the feeding plate (22) is lower than that of the top surface of the plate stack feed roller (1), the grooved column (3) is vertically arranged at the discharging side of the feeding plate (22), the vertical groove of the grooved column (3) is arranged at one side connected with the feeding pushing mechanism (2), the discharging side of the feeding plate (22) is clamped in the vertical groove of the grooved column (3), the upper part of the vertical groove of the grooved column (3) is provided with a single plate discharging port, and the discharging side of the single plate discharging port is connected with the feeding side of the single plate feed roller (4), the height of the single plate discharge port is higher than that of the top surface of the single plate feeding roller (4), and a horizontal pushing mechanism (5) is arranged at a position over the feeding plate (22) and opposite to the single plate discharge port.
2. The plating apparatus of claim 1, wherein: and limiting baffles are arranged on two sides of the plate stack feeding roller (1).
3. The plating apparatus of claim 1, wherein: the horizontal pushing mechanism (5) comprises a horizontal pushing cylinder (51) and a pushing plate (52), the horizontal pushing cylinder (51) is horizontally arranged, a cylinder rod of the horizontal pushing cylinder (51) is opposite to a single plate discharge hole, the back surface of the pushing plate (52) is connected with the cylinder rod of the horizontal pushing cylinder (51), a spring pin (521) and a pushing bar (522) are arranged on the front surface of the pushing plate (52), and the pushing bar (522) is connected with the pushing plate (52) through the spring pin (521).
4. The plating apparatus of claim 1, wherein: the single sheet feeding roller (4) is arranged on the upper surface of the processing cabinet body, a table plate (6) is arranged at the upper end of the groove column (3), and the table plate (6) is supported by a support column (7).
5. The plating apparatus of claim 1, wherein: horizontal plates (8) are fixed at the upper and lower positions of the single plate discharge hole at the rear end of the groove column (3), an auxiliary cylinder (9) is arranged on the horizontal plates (8), and an output shaft of the auxiliary cylinder (9) is fixed with rollers (10) through a pressing plate.
6. The plating apparatus of claim 1, wherein: an infrared counter is arranged at the discharge port of the single plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210185967.6A CN114229491A (en) | 2022-02-28 | 2022-02-28 | Board feeding device of PCB production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210185967.6A CN114229491A (en) | 2022-02-28 | 2022-02-28 | Board feeding device of PCB production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114229491A true CN114229491A (en) | 2022-03-25 |
Family
ID=80748258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210185967.6A Pending CN114229491A (en) | 2022-02-28 | 2022-02-28 | Board feeding device of PCB production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114229491A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118004769A (en) * | 2024-03-27 | 2024-05-10 | 四川英创力电子科技股份有限公司 | Efficient automatic feeding machine and feeding method for feeding circuit board |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005239331A (en) * | 2004-02-25 | 2005-09-08 | Rengo Co Ltd | Feeder of underlay panel |
| CN102101593A (en) * | 2011-01-18 | 2011-06-22 | 山东兰剑物流科技有限公司 | Automatic depalletizing and stacking machine for line stack-type containers |
| CN203959342U (en) * | 2014-06-26 | 2014-11-26 | 泰山石膏股份有限公司 | A kind of decorated gypsum board push pedal board separating device |
| CN205151211U (en) * | 2015-10-23 | 2016-04-13 | 江苏拓新天机器人科技有限公司 | Lithium battery tray separator |
| CN106966176A (en) * | 2017-03-21 | 2017-07-21 | 山东同利智能科技有限公司 | A kind of sheet material feeder |
| CN206735378U (en) * | 2017-04-01 | 2017-12-12 | 大亚人造板集团有限公司强化地板分公司 | With the plank hot press for entering panel assembly automatically |
| CN215325463U (en) * | 2021-02-05 | 2021-12-28 | 四川易景智能终端有限公司 | A go up trigger for cell-phone PCB board production line |
-
2022
- 2022-02-28 CN CN202210185967.6A patent/CN114229491A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005239331A (en) * | 2004-02-25 | 2005-09-08 | Rengo Co Ltd | Feeder of underlay panel |
| CN102101593A (en) * | 2011-01-18 | 2011-06-22 | 山东兰剑物流科技有限公司 | Automatic depalletizing and stacking machine for line stack-type containers |
| CN203959342U (en) * | 2014-06-26 | 2014-11-26 | 泰山石膏股份有限公司 | A kind of decorated gypsum board push pedal board separating device |
| CN205151211U (en) * | 2015-10-23 | 2016-04-13 | 江苏拓新天机器人科技有限公司 | Lithium battery tray separator |
| CN106966176A (en) * | 2017-03-21 | 2017-07-21 | 山东同利智能科技有限公司 | A kind of sheet material feeder |
| CN206735378U (en) * | 2017-04-01 | 2017-12-12 | 大亚人造板集团有限公司强化地板分公司 | With the plank hot press for entering panel assembly automatically |
| CN215325463U (en) * | 2021-02-05 | 2021-12-28 | 四川易景智能终端有限公司 | A go up trigger for cell-phone PCB board production line |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118004769A (en) * | 2024-03-27 | 2024-05-10 | 四川英创力电子科技股份有限公司 | Efficient automatic feeding machine and feeding method for feeding circuit board |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220325 |