CN213833819U - Electronic shielding film automatic packaging machine - Google Patents
Electronic shielding film automatic packaging machine Download PDFInfo
- Publication number
- CN213833819U CN213833819U CN202022771962.0U CN202022771962U CN213833819U CN 213833819 U CN213833819 U CN 213833819U CN 202022771962 U CN202022771962 U CN 202022771962U CN 213833819 U CN213833819 U CN 213833819U
- Authority
- CN
- China
- Prior art keywords
- shielding film
- packaging machine
- control switch
- switch group
- electronic shielding
- 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.)
- Expired - Fee Related
Links
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 30
- 238000005096 rolling process Methods 0.000 claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims description 16
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 6
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 6
- 241001330002 Bambuseae Species 0.000 claims description 5
- 239000011425 bamboo Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 238000012856 packing Methods 0.000 abstract description 16
- 230000004888 barrier function Effects 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 description 7
- 230000009471 action Effects 0.000 description 2
- 241000209128 Bambusa Species 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Landscapes
- Containers And Plastic Fillers For Packaging (AREA)
Abstract
The utility model discloses an automatic electronic shielding film packaging machine, which comprises a bottom plate, a coiling mechanism and a chute; a bottom plate: support plates are symmetrically arranged on the left and right of the upper surface of the support plate, supports are arranged at the upper ends of the two support plates, a conical box is arranged between the two supports, a baffle plate is rotationally connected to the opening of the lower end of the conical box in a front-back symmetrical mode, gears are arranged at the right end of the baffle plate, a rack plate is arranged at the telescopic end of a first electric push rod arranged on the right side surface of the conical box, and the rack plate is respectively connected with the two gears in a meshed mode; the material rolling mechanism comprises: are respectively arranged in the middle parts of the two baffles; a chute: symmetry sets up in the relative medial surface of two extension boards around respectively, and the equal sliding connection in inside of spout has the slider, and this electronic shielding film automatic packaging machine can realize carrying out automatic rolling packing to the barrier film, and guarantees inseparabler, and packing efficiency is higher, and the rolling packing is more neat.
Description
Technical Field
The utility model relates to an electronic components technical field specifically is an electronic shielding film automatic packaging machine.
Background
Along with the development of modern high and new technology, the problems of electromagnetic interference and electromagnetic compatibility caused by electromagnetic waves are increasingly serious, which not only causes interference and damage to electronic instruments and equipment to influence the normal work of the electronic instruments and equipment, but also pollutes the environment and harms the human health, although the permeability of electromagnetic wave propagation is strong, excellent conductive or magnetic conductive materials can be used for shielding electromagnetic wave radiation, electronic shielding films are produced accordingly, the electronic shielding films are also called EMI protective films or wave absorbing materials, mainly comprising high conductive adhesive layers with insulating layers, have good flexibility and grounding conductivity and good shielding effect, are widely applied to mobile phone hubs and camera modules, and are generally required to be rolled and packaged in production, so that subsequent transportation and use, and traditional packagine machine mostly needs artifical material loading, carries out the rolling through motor drive, then artifical unloading, can't realize the automation, and efficiency is lower, still leads to the rolling inseparable easily, packs untidy scheduling problem, therefore we have proposed an electronic shielding film automatic packaging machine.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, provide an electronic shielding film automatic packaging machine, can realize carrying out automatic rolling packing to the shielding film, and guarantee inseparabler, packing efficiency is higher, and the fiber container skids when can also preventing the rolling packing, and the rolling packing is more neat, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: an automatic electronic shielding film packaging machine comprises a bottom plate, a material rolling mechanism and a chute;
a bottom plate: support plates are symmetrically arranged on the left and right of the upper surface of the support plate, supports are arranged at the upper ends of the two support plates, a conical box is arranged between the two supports, a baffle plate is rotationally connected to the opening of the lower end of the conical box in a front-back symmetrical mode, gears are arranged at the right end of the baffle plate, a rack plate is arranged at the telescopic end of a first electric push rod arranged on the right side surface of the conical box, and the rack plate is respectively connected with the two gears in a meshed mode;
the material rolling mechanism comprises: are respectively arranged in the middle parts of the two support plates;
a chute: the sliding grooves are respectively and symmetrically arranged on the opposite inner side surfaces of the two support plates in the front-back direction, the sliding blocks are connected inside the sliding grooves in a sliding mode, springs are arranged at the lower ends of the sliding blocks, and connecting rods are connected between the two sliding blocks which correspond to each other in the transverse direction in a rotating mode;
wherein: still include control switch group, control switch group sets up in the support right-hand member face on right side, and external power source is connected to control switch group's input electricity, and control switch group's output is connected to first electric putter's input electricity, can realize carrying out automatic rolling packing to the barrier film, and guarantees inseparabler, and packing efficiency is higher, and the fiber container skids when can also preventing the rolling packing, and the rolling packing is more neat.
Further, coil mechanism includes kicking block, second electric putter, mounting bracket and an installation section of thick bamboo, the inside installation section of thick bamboo that all is provided with of through-hole at extension board middle part, the equal activity of the inside of two installation sections of thick bamboos is pegged graft and is had the kicking block, the outer side of the back of the body mutually of two extension boards all is provided with the mounting bracket, second electric putter is all installed at the middle part of mounting bracket, second electric putter's flexible end is connected with the kicking block of homonymy back of the body outside blind hole inner wall rotation respectively, second electric putter's input electricity connection control switch group's output, with the fiber container top tight, the follow-up automatic rolling packing of being convenient for.
Further, the shape of kicking block is the toper, and the relative inboard end of two kicking blocks is the toper rubber piece, and two kicking blocks all are greater than second electric putter stiff end diameter with the outside blind hole diameter mutually, and the fiber container skids when preventing the rolling packing, guarantees the axiality of fiber container and kicking block simultaneously.
Further, coil mechanism still includes the runner, the runner rotates to be connected in the installation section of thick bamboo right end on right side, and the protruding and top block extrados bar groove lateral sliding connection on right side of runner inner arc surface is convenient for drive power's transmission.
Furthermore, the right end of the upper surface of the bottom plate is provided with a motor, a belt pulley arranged at the end of an output shaft of the motor is in transmission connection with a rotating wheel through a belt, and the input end of the motor is electrically connected with the output end of the control switch group to provide driving force for automatic packaging.
Compared with the prior art, the beneficial effects of the utility model are that: this electronic shielding film automatic packaging machine has following benefit:
1. the control switch group controls the second electric push rod arranged in the middle of the mounting frame to work, two ejector blocks are oppositely pushed along corresponding mounting cylinders, the opposite inner side ends of the ejector blocks are conical rubber blocks, the paper tube is tightly ejected to prevent the paper tube from slipping during rolling and packaging, the coaxiality of the paper tube and the ejector blocks is ensured simultaneously, the subsequent rolling is more orderly, the shielding film ends are fixed on the outer cambered surface of the paper tube through an external traction mechanism, the control switch group controls the motor to work, a belt pulley arranged at the end of a motor output shaft is in transmission connection with a rotating wheel through a belt, because the rotating wheel is in rotational connection with the mounting cylinder on the right side, the inner cambered surface bulge of the rotating wheel is in transverse sliding connection with the strip groove of the outer cambered surface of the ejector block on the right side, the motor works to drive the rotating wheel to rotate, the ejector blocks on the right side are rotated to drive the paper tube to rotate, the automatic rolling and packaging of the shielding film is ensured to be more compact, the packaging efficiency is higher.
2. The slider is located the top of spout under the elastic force effect of spring to the fiber container drops to between two connecting rods, and contacts with the connecting rod, plays the supporting role to the fiber container, and the spring resets after the packing is accomplished, and the shielding film after accomplishing with the packing is ejecting, is convenient for realize automatic continuous packing.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial schematic view of the structure of the conical box of the present invention;
fig. 3 is a schematic view of the partial cross-sectional view of the coil structure of the present invention.
In the figure: the device comprises a base plate 1, a coiling mechanism 2, a rotating wheel 21, a top block 22, a second electric push rod 23, a mounting frame 24, a mounting barrel 25, a support plate 3, a support 4, a conical box 5, a baffle 6, a first electric push rod 7, a rack plate 8, a gear 9, a sliding groove 10, a sliding block 11, a spring 12, a connecting rod 13, a control switch group 14 and a motor 15.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: an automatic electronic shielding film packaging machine comprises a bottom plate 1, a material rolling mechanism 2 and a chute 10;
bottom plate 1: support plates 3 are symmetrically arranged on the left and right of the upper surface of the conical box, supports 4 are arranged at the upper ends of the two support plates 3, a conical box 5 is arranged between the two supports 4, baffle plates 6 are symmetrically and rotatably connected to the front and back of an opening at the lower end of the conical box 5, gears 9 are arranged at the right ends of the baffle plates 6, a rack plate 8 is arranged at the telescopic end of a first electric push rod 7 arranged on the right side of the conical box 5, the rack plate 8 is respectively meshed with the two gears 9, a paper tube used for packaging a shielding film is transversely placed in the conical box 5, a control switch group 14 controls the first electric push rod 7 to work to drive the rack plate 8 to move up and down, the rack plate 8 is respectively meshed with the gears 9 arranged at the right ends of the two baffle plates 6, so that the two baffle plates 6 synchronously rotate back to back, and the paper tube in the conical box 5 falls down after each circle of rotation of the baffle plates 6;
and (3) a material rolling mechanism 2: the coiling mechanism 2 comprises a top block 22, a second electric push rod 23, an installation frame 24 and an installation barrel 25, the installation barrel 25 is arranged in the through hole in the middle of the support plate 3, the top block 22 is movably inserted in the two installation barrels 25, the installation frame 24 is arranged on the outer side faces of the two support plates 3 opposite to each other, the second electric push rod 23 is arranged in the middle of the installation frame 24, the telescopic end of the second electric push rod 23 is respectively connected with the inner wall of the blind hole on the outer side of the top block 22 opposite to each other on the same side in a rotating manner, the input end of the second electric push rod 23 is electrically connected with the output end of the control switch group 14, the top block 22 is conical, the end heads of the two top blocks 22 on the opposite inner sides are conical rubber blocks, the diameter of the blind holes on the outer sides of the two top blocks 22 opposite to each other is larger than the diameter of the fixed end of the second electric push rod 23, the coiling mechanism 2 further comprises a rotating wheel 21, the rotating wheel 21 is rotatably connected with the right end head of the installation barrel 25 on the right side, the inner arc surface of the rotating wheel 21 is connected with the outer arc surface strip groove of the top block 22 on the right side in a transverse sliding mode, the right end of the upper surface of the bottom plate 1 is provided with a motor 15, a belt pulley arranged at the end head of an output shaft of the motor 15 is connected with the rotating wheel 21 in a transmission mode through a belt, the input end of the motor 15 is electrically connected with the output end of the control switch group 14, the control switch group 14 controls a second electric push rod 23 arranged in the middle of the mounting frame 24 to work, the two top blocks 22 are pushed towards each other along the corresponding mounting cylinders 25, the opposite inner side ends of the top blocks 22 are all conical rubber blocks to tightly push the paper tube, the coaxiality of the paper tube and the top blocks 22 is ensured at the same time, the end head of the shielding film is fixed on the outer arc surface of the paper tube through an external traction mechanism, the control switch group 14 controls the motor 15 to work, the belt pulley arranged at the end head of the output shaft of the motor 15 is connected with the rotating wheel 21 through the belt, and the rotating connection of the mounting cylinders 25 on the right side, the inner arc surface bulge of the rotating wheel 21 is transversely connected with the outer arc surface strip-shaped groove of the top block 22 on the right side in a sliding manner, so that the motor 15 works to drive the rotating wheel 21 to rotate, further the top block 22 on the right side rotates to drive the paper tube to rotate, and the shielding film is automatically rolled and packaged;
the chute 10: the paper tube packaging device is characterized in that the paper tube packaging device is respectively and symmetrically arranged on the opposite inner side surfaces of the two support plates 3 in a front-back mode, sliders 11 are connected inside the sliding grooves 10 in a sliding mode, springs 12 are arranged at the lower ends of the sliders 11, connecting rods 13 are connected between the two sliders 11 which correspond to each other in the transverse mode in a rotating mode, the sliders 11 are located at the top ends of the sliding grooves 10 under the elastic force action of the springs 12, so that a paper tube falls between the two connecting rods 13 and contacts with the connecting rods 13 to support the paper tube, the springs 12 reset after packaging is completed, the shielding film after packaging is ejected out, and automatic continuous packaging is facilitated;
wherein: the power supply device further comprises a control switch group 14, the control switch group 14 is arranged on the right end face of the support 4 on the right side, the input end of the control switch group 14 is electrically connected with an external power supply, and the input end of the first electric push rod 7 is electrically connected with the output end of the control switch group 14, so that the normal operation of each structural circuit is guaranteed.
When in use: the paper tube used for packaging the shielding film is transversely placed in the conical box 5, the control switch group 14 controls the first electric push rod 7 to work to drive the rack plate 8 to move up and down, the rack plate 8 is respectively meshed and connected with the gears 9 arranged at the right ends of the two baffles 6, so that the two baffles 6 synchronously rotate back and forth, the paper tube in the conical box 5 falls down one by one rotation of each baffle 6, the sliding block 11 is positioned at the top end of the sliding groove 10 under the action of the elastic force of the spring 12, so that the paper tube falls between the two connecting rods 13 and contacts with the connecting rods 13, the control switch group 14 controls the second electric push rod 23 arranged in the middle of the mounting frame 24 to work to push the two ejector blocks 22 oppositely along the corresponding mounting cylinders 25, the opposite inner side ends of the ejector blocks 22 are conical rubber blocks, the paper tube is tightly ejected, the coaxiality of the paper tube and the ejector blocks 22 is ensured at the same time, the ends of the shielding film are fixed on the outer cambered surface of the paper tube through an external traction mechanism, the control switch group 14 controls the motor 15 to work, a belt pulley arranged at the end of an output shaft of the motor 15 is in transmission connection with the rotating wheel 21 through a belt, the rotating wheel 21 is in rotational connection with the installation barrel 25 on the right side, and the inner arc surface bulge of the rotating wheel 21 is in transverse sliding connection with the outer arc surface strip groove of the top block 22 on the right side, so that the motor 15 works to drive the rotating wheel 21 to rotate, and further the top block 22 on the right side rotates to drive the paper barrel to rotate to automatically wrap and pack the shielding film, the shielding film is in contact with the connecting rod 13 which is in rotational connection with the sliding block 11 during packaging, the sliding block 11 synchronously moves downwards along with the increase of the thickness of the shielding film during packaging, the spring 12 is compressed to enable the shielding film to be more tightly packaged, after the packaging is completed, an external mechanism cuts off the shielding film, the second electric push rod 23 drives the top block 22, and a paper tube falls down again inside the conical box 5 to continue rolling and packaging.
It should be noted that the motor 15 disclosed in this embodiment may be an ac motor of 5IK150RGU-CF model number from wepont electromechanical ltd, dongguan, the first electric push rod 7 and the second electric push rod 23 may be ac push rods of JK-JP3 model number from electrical macro electromechanical technology ltd, beijing, and the control switch group 14 controls the motor 15, the first electric push rod 7 and the second electric push rod 23 to operate by methods commonly used in the prior art.
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 (5)
1. An electronic shielding film automatic packaging machine is characterized in that: comprises a bottom plate (1), a material rolling mechanism (2) and a chute (10);
base plate (1): support plates (3) are symmetrically arranged on the left and right of the upper surface of the support plate, supports (4) are arranged at the upper ends of the two support plates (3), a conical box (5) is arranged between the two supports (4), a baffle (6) is rotationally connected to the opening of the lower end of the conical box (5) in a front-back symmetrical mode, gears (9) are arranged at the right end of the baffle (6), a rack plate (8) is arranged at the telescopic end of a first electric push rod (7) arranged on the right side surface of the conical box (5), and the rack plate (8) is respectively connected with the two gears (9) in a meshed mode;
coiling mechanism (2): are respectively arranged in the middle parts of the two support plates (3);
chute (10): the sliding grooves (10) are respectively and symmetrically arranged on the opposite inner side surfaces of the two support plates (3) in the front-back direction, the sliding blocks (11) are connected inside the sliding grooves (10) in a sliding mode, springs (12) are arranged at the lower ends of the sliding blocks (11), and connecting rods (13) are connected between the two sliding blocks (11) which correspond to each other in the transverse direction in a rotating mode;
wherein: the electric push rod type bracket is characterized by further comprising a control switch group (14), wherein the control switch group (14) is arranged on the right end face of the right side of the bracket (4), the input end of the control switch group (14) is electrically connected with an external power supply, and the input end of the first electric push rod (7) is electrically connected with the output end of the control switch group (14).
2. The electronic shielding film automatic packaging machine according to claim 1, wherein: coil mechanism (2) are including kicking block (22), second electric putter (23), mounting bracket (24) and installation section of thick bamboo (25), the through-hole inside at extension board (3) middle part all is provided with installation section of thick bamboo (25), the equal activity grafting in inside of two installation sections (25) has kicking block (22), the back of the body lateral surface that mutually supports of two extension boards (3) all is provided with mounting bracket (24), second electric putter (23) are all installed at the middle part of mounting bracket (24), the flexible end of second electric putter (23) is connected with the kicking block (22) of homonymy back of the body outside blind hole inner wall rotation respectively, the output of input electricity connection control switch group (14) of second electric putter (23).
3. The electronic shielding film automatic packaging machine according to claim 2, wherein: the shape of kicking block (22) is the toper, and the relative inboard end of two kicking blocks (22) is the toper rubber block, and two kicking blocks (22) are carried on the back mutually outside blind hole diameter and all are greater than second electric putter (23) stiff end diameter.
4. The automatic electronic shielding film packaging machine according to claim 3, wherein: the coil mechanism (2) further comprises a rotating wheel (21), the rotating wheel (21) is connected to the right end of the installation barrel (25) on the right side in a rotating mode, and the inner arc surface of the rotating wheel (21) is protruded and connected with the outer arc surface strip-shaped groove of the top block (22) on the right side in a transverse sliding mode.
5. The automatic electronic shielding film packaging machine according to claim 4, wherein: the motor (15) is arranged at the right end of the upper surface of the bottom plate (1), a belt pulley arranged at the end of an output shaft of the motor (15) is in transmission connection with the rotating wheel (21) through a belt, and the input end of the motor (15) is electrically connected with the output end of the control switch group (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022771962.0U CN213833819U (en) | 2020-11-25 | 2020-11-25 | Electronic shielding film automatic packaging machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022771962.0U CN213833819U (en) | 2020-11-25 | 2020-11-25 | Electronic shielding film automatic packaging machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213833819U true CN213833819U (en) | 2021-07-30 |
Family
ID=76991410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022771962.0U Expired - Fee Related CN213833819U (en) | 2020-11-25 | 2020-11-25 | Electronic shielding film automatic packaging machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213833819U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114408638A (en) * | 2021-12-24 | 2022-04-29 | 安徽格林开思茂光电科技股份有限公司 | Automatic adhesive tape winding device |
-
2020
- 2020-11-25 CN CN202022771962.0U patent/CN213833819U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114408638A (en) * | 2021-12-24 | 2022-04-29 | 安徽格林开思茂光电科技股份有限公司 | Automatic adhesive tape winding device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213833819U (en) | Electronic shielding film automatic packaging machine | |
| JP7034421B2 (en) | Battery cell mounting device and its method | |
| CN213658800U (en) | PCBA board test fixture | |
| CN113371290A (en) | Double-side labeling machine for packaging | |
| CN211182854U (en) | Ponding device that prevents of switch board | |
| CN117219454A (en) | Winding equipment for film capacitor | |
| CN211719156U (en) | Logistics storage practice teaching aid | |
| CN115027046B (en) | Full-automatic laminating machine | |
| CN206451599U (en) | Magnet ring rubber coating machine | |
| CN213036191U (en) | Baling press is used in cotton processing | |
| CN211594397U (en) | Coiling mechanism is used in copper foil production | |
| CN208544936U (en) | A kind of soft arranging wire reeling device | |
| CN211390198U (en) | Insulating gasket rubberizing machine | |
| CN207675999U (en) | A kind of device for filling water repellent cable paste into communication optical cable | |
| CN111672807A (en) | Capacitor film quick double-side cleaning equipment based on centrifugal force | |
| CN208217113U (en) | Pcb board storage protection equipment for pcb board manufacture | |
| CN213504816U (en) | Gantry magnet assembling device | |
| CN214797113U (en) | Automatic rubber coating machine of inductor | |
| CN211365051U (en) | FPC reinforcement piece packing dish device | |
| CN210272071U (en) | Wire drawing machine for winding magnetic ring | |
| CN218532094U (en) | Circuit board tin spraying cleaning equipment containing ultrasonic cleaning | |
| CN215320861U (en) | Special compressor arrangement of corrugated paper waste paper | |
| CN212750939U (en) | Full-automatic electric core side rubberizing equipment | |
| CN210792392U (en) | Automatic film stripping machine for aluminum substrate | |
| CN213126590U (en) | Multilayer PCB circuit board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210730 |