CN111215300A - Aerify tensile distributed anti-fake granule printing robot device - Google Patents
Aerify tensile distributed anti-fake granule printing robot device Download PDFInfo
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- CN111215300A CN111215300A CN202010155067.8A CN202010155067A CN111215300A CN 111215300 A CN111215300 A CN 111215300A CN 202010155067 A CN202010155067 A CN 202010155067A CN 111215300 A CN111215300 A CN 111215300A
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- fluidization
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- circular groove
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C19/00—Apparatus specially adapted for applying particulate materials to surfaces
- B05C19/04—Apparatus specially adapted for applying particulate materials to surfaces the particulate material being projected, poured or allowed to flow onto the surface of the work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C19/00—Apparatus specially adapted for applying particulate materials to surfaces
- B05C19/06—Storage, supply or control of the application of particulate material; Recovery of excess particulate material
Abstract
The invention discloses an inflatable stretching distributed anti-counterfeiting particle printing robot device which comprises a bottom plate, a linear displacement motor, a cantilever, a lifting displacement mechanism, an inflatable adsorption mechanism, a particle fluidization mechanism and a heating shaping disc, wherein the bottom plate is provided with a plurality of holes; the inflation adsorption mechanism comprises an inflation adsorption stretching circular groove, a top cover, a positive pressure air inlet electromagnetic valve and a negative pressure air outlet electromagnetic valve, wherein a first air chamber is formed between the top cover and the inflation adsorption stretching circular groove, a central hole is formed in the bottom surface of the inflation adsorption stretching circular groove, and a gradual air outlet hole with the aperture gradually decreasing from inside to outside is formed in the bottom surface of the inflation adsorption stretching circular groove; the particle fluidization mechanism comprises a fluidization jet chamber, a sealing bearing platform, a compressed air jet plate and an air jet fluidization base, wherein a second air chamber is formed by the compressed air jet plate and the air jet fluidization base; the invention can solve the problem of feature overlapping, enhance the identifiability of printed matters, and simultaneously uniformly disperse anti-counterfeiting particles on the plastic stretch film, and have regular boundaries.
Description
Technical Field
The invention relates to an inflatable stretching distributed anti-counterfeiting particle printing robot device.
Background
The anti-counterfeiting technology comprises the steps of uniformly spraying rectangular or other-shaped gravels on a sticker to form a random characteristic area in a certain area, and identifying the random characteristic of the characteristic area by a technical means to achieve the purpose of distinguishing authenticity.
However, this method has two problems in practical application: 1. the features are overlapped, namely two or more features are overlapped and are not on the same plane, so that the height difference exists, and the feature area is difficult to identify; 2. as the anti-counterfeiting particles are directly scattered on the gluing material in the traditional mode, the anti-counterfeiting particles are caused, so that the characteristic particles are uneven and the boundaries are irregular.
Disclosure of Invention
The invention aims to overcome the defects and provide a robot device for printing inflatable stretching dispersed anti-counterfeiting particles.
In order to achieve the purpose, the invention adopts the following specific scheme:
an inflatable stretching dispersion type anti-counterfeiting particle printing robot device comprises a bottom plate, a linear displacement motor, a cantilever, a lifting displacement mechanism, an inflatable adsorption mechanism, a particle fluidization mechanism and a heating shaping plate, wherein the linear displacement motor is arranged on one side of the bottom plate, one end of the cantilever is connected to the output end of the linear displacement motor, the lifting displacement mechanism is arranged on the other end of the cantilever, the inflatable adsorption mechanism is arranged on the output end of the lifting displacement mechanism, and the particle fluidization mechanism and the heating shaping plate are sequentially arranged on the other side of the bottom plate;
the inflatable adsorption mechanism comprises an inflatable adsorption stretching circular groove, a top cover, a positive pressure air inlet electromagnetic valve and a negative pressure air outlet electromagnetic valve, the top cover covers the top end of the inflatable adsorption stretching circular groove and forms a closed first air chamber together with the inflatable adsorption stretching circular groove, a central hole is formed in the bottom surface of the inflatable adsorption stretching circular groove, multiple rows of gradually-changed air outlet holes which are distributed in the radial direction and gradually reduced in aperture from inside to outside are formed in the bottom surface of the inflatable adsorption stretching circular groove at intervals around the central hole, the positive pressure air inlet electromagnetic valve and the negative pressure air outlet electromagnetic valve are arranged on the outer annular wall of the inflatable adsorption stretching circular groove in a staggered mode, and the positive pressure air inlet electromagnetic valve and the negative pressure air;
the particle fluidization mechanism comprises a cylindrical fluidization jet chamber for storing anti-counterfeiting particles, an annular sealing bearing platform, a compressed air jet plate and a disc-shaped air jet fluidization base, wherein the fluidization jet chamber is fixed on a bottom plate, the air jet fluidization base is arranged in the fluidization jet chamber, the compressed air jet plate is embedded at the upper end of the air jet fluidization base and forms a second air chamber with the air jet fluidization base, the air jet fluidization base is provided with an air inlet nozzle communicated with the second air chamber, the air inlet nozzle extends out of the fluidization jet chamber, the sealing bearing platform is arranged at the bottom of the fluidization jet chamber, and the compressed air jet plate is provided with a plurality of air jet holes;
the heating shaping disc is fixed on the bottom plate through a shaping disc support.
The plurality of gas injection holes are arranged in a plurality of concentric rings, wherein one gas injection hole is positioned at the position of the circle center.
Wherein, lift displacement mechanism includes lift cylinder and lifter plate, the lift cylinder is fixed on the cantilever, one side of lifter plate is equipped with two guide bars, two the guide bar passes the cantilever through linear bearing activity, the output of lift cylinder is connected with one side of lifter plate, the opposite side at the lifter plate is fixed to the top cap.
The automatic discharging device further comprises a discharging groove, and the discharging groove is fixed on the bottom plate through a discharging support.
The invention has the beneficial effects that: compared with the prior art, the anti-counterfeiting printing machine has the advantages that the problem of feature overlapping is solved through the cooperation of the inflatable adsorption mechanism and the particle fluidization mechanism, the identifiability of printed matters is enhanced, meanwhile, anti-counterfeiting particles are uniformly dispersed on the plastic stretching film, and the boundaries are neat.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of the pneumatic sorption mechanism of the invention;
FIG. 3 is a perspective view of another perspective of the inflatable adsorbent mechanism of the present invention;
FIG. 4 is an exploded schematic view of the particle fluidization mechanism of the present invention;
FIG. 5 is a perspective view of the elevator displacement mechanism of the present invention;
description of reference numerals: 1-a bottom plate; 2-linear displacement motor; 3-a cantilever; 4-a lifting displacement mechanism; 41-lifting cylinder; 42-a lifter plate; 43-a guide bar; 5-an air-charging adsorption mechanism; 51-inflation adsorption stretching round groove; 511-center hole; 512-gradual change air outlet; 52-a top cover; 53-positive pressure inlet solenoid valve; 54-negative pressure exhaust solenoid valve; 6-a particle fluidization mechanism; 61-a fluidized spray chamber; 62-sealing the bearing table; 63-compressed air jet plate; 64-a jet fluidization base; 7-heating a shaping disc; 8-a discharge chute.
Detailed Description
The invention will be described in further detail with reference to the following figures and specific examples, without limiting the scope of the invention.
The embodiment provides an inflatable stretching distributed anti-counterfeiting particle printing device for printing anti-counterfeiting particles on a plastic stretching film, wherein the plastic stretching film is made of a plastic stretchable material, the plasticity of the plastic stretching film is reduced after high temperature, a film layer with certain rigidity is obtained, and the shape of the film layer is stabilized.
As shown in fig. 1 to 5, the inflatable stretching dispersion type anti-counterfeit particle printing robot device according to the present embodiment includes a base plate 1, a linear displacement motor 2, a cantilever 3, an elevation displacement mechanism 4, an inflatable adsorption mechanism 5, a particle fluidization mechanism 6, and a heating and shaping disk 7, wherein the linear displacement motor 2 is disposed on one side of the base plate 1, one end of the cantilever 3 is connected to an output end of the linear displacement motor 2, the elevation displacement mechanism 4 is disposed on the other end of the cantilever 3, the inflatable adsorption mechanism 5 is disposed on an output end of the elevation displacement mechanism 4, and the particle fluidization mechanism 6 and the heating and shaping disk 7 are sequentially disposed on the other side of the base plate 1;
the inflation adsorption mechanism 5 comprises an inflation adsorption stretching circular groove 51, a top cover 52, a positive pressure air inlet electromagnetic valve 53 and a negative pressure air outlet electromagnetic valve 54, wherein the top cover 52 covers the top end of the inflation adsorption stretching circular groove 51 and forms a closed first air chamber with the inflation adsorption stretching circular groove 51, a central hole 511 is formed in the bottom surface of the inflation adsorption stretching circular groove 51, multiple rows of gradually-changed air outlet holes 512 which are distributed along the radial direction and gradually reduced in aperture from inside to outside are formed in the bottom surface of the inflation adsorption stretching circular groove 51 at intervals around the central hole 511, the positive pressure air inlet electromagnetic valve 53 and the negative pressure air outlet electromagnetic valve 54 are arranged on the outer annular wall of the inflation adsorption stretching circular groove 51 in a staggered mode, and the positive pressure air inlet electromagnetic valve 53 and the negative pressure air;
the particle fluidization mechanism 6 comprises a cylindrical fluidization jet chamber 61 for storing anti-counterfeiting particles, an annular sealing bearing platform 62, a compressed air jet plate 63 and a disc-shaped air jet fluidization base 64, wherein the fluidization jet chamber 61 is fixed on the bottom plate 1, the air jet fluidization base 64 is arranged in the fluidization jet chamber 61, the compressed air jet plate 63 is embedded at the upper end of the air jet fluidization base 64 and forms a second air chamber with the air jet fluidization base 64, the air jet fluidization base 64 is provided with an air inlet nozzle communicated with the second air chamber, the air inlet nozzle extends out of the fluidization jet chamber 61, the sealing bearing platform 62 is arranged at the bottom of the fluidization jet chamber 61, and the compressed air jet plate 63 is provided with a plurality of air jet holes;
the heating shaping disc 7 is fixed on the bottom plate 1 through a shaping disc bracket.
The working mode of the embodiment is as follows: when the device works, the working surface of the flat unstretched glued plastic stretching film is placed on a sealing bearing platform 62 of a particle fluidization mechanism 6 downwards, then the inflatable adsorption mechanism 5 is positioned above the particle fluidization mechanism 6 under the driving of a linear displacement motor 2, then the lifting displacement mechanism 4 drives the inflatable adsorption mechanism 5 to downwards move, the inflatable adsorption and stretching circular groove 51 of the inflatable adsorption mechanism 5 presses the plastic stretching film on the sealing bearing platform 62, so that a sealing space is formed between the inflatable adsorption and stretching circular groove 51 and the plastic stretching film, after the pressing, the second air chamber is inflated through an air inlet nozzle of an air injection fluidization base 64, so that the anti-counterfeiting particles in a fluidization injection chamber 61 of the particle fluidization mechanism 6 are blown up by air flow sprayed from air injection holes on a compressed air injection plate 63 and are in a fluid state, and part of the anti-counterfeiting particles contacted with the plastic stretching film are adhered to the working surface of the plastic stretching film, forming an anti-counterfeiting particle layer which is densely and randomly arranged, wherein the anti-counterfeiting particles which are not adhered fall under the action of gravity and are separated from the plastic stretching film;
after the anti-counterfeiting particles are adhered, the positive pressure air inlet solenoid valve 53 of the air inflation adsorption mechanism 5 is opened, the negative pressure air outlet solenoid valve 54 is closed, the sealed space is inflated, at the moment, the plastic stretching film is deformed, the expansion surface area of the plastic stretching film is increased to increase the distance between the anti-counterfeiting particles adhered to the working surface of the plastic stretching film, so that the anti-counterfeiting particles are dispersed, and the lap joints among the anti-counterfeiting particles are eliminated; after the inflation is completed, the negative pressure exhaust solenoid valve 54 is opened, the positive pressure intake solenoid valve 53 is closed, the air in the sealed space is evacuated, the plastic stretch film after the inflation and stretching is adsorbed on the bottom surface of the inflation adsorption and stretching circular groove 51, at the same time, the lifting displacement mechanism 4 drives the inflation absorption mechanism 5 to lift, further absorb the plastic stretching film absorbed on the inflation absorption stretching circular groove 51, since the aperture of the gradually-changed vent holes 512 on the pneumatic adsorption drawing circular groove 51 is gradually reduced from inside to outside, so that the adsorption force of the plastic stretching film on the edge of the inflatable adsorption stretching circular groove 51 is smaller, and the friction force with the inflatable adsorption stretching circular groove 51 is also small, and under the action of negative pressure adsorption force on the central surface of the plastic stretching film, the edge of the curved surface film layer slides along the bottom surface of the inflation adsorption stretching circular groove 51, so that the plastic stretching film is primarily flattened;
after the primary flattening of the plastic stretching film, the linear displacement motor 2 drives the inflation adsorption mechanism 5 and the plastic stretching film to be transferred to the upper part of the heating shaping disc 7, then the lifting displacement mechanism 4 drives the inflation adsorption mechanism 5 to downwards probe, the plastic stretching film adsorbed on the inflation adsorption mechanism 5 is flattened on the heating shaping disc 7, the heating shaping disc 7 heats the plastic stretching film, the plastic stretching film is further shaped, after the shaping is completed, the linear displacement mechanism, the lifting displacement mechanism 4 and the inflation adsorption mechanism 5 are used for transferring the shaped plastic stretching film out of a working area, and therefore the printing work of anti-counterfeiting particles is completed.
The embodiment solves the problem of feature overlapping by matching the inflatable adsorption mechanism 5 with the particle fluidization mechanism 6, enhances the identifiability of printed matters, and simultaneously enables anti-counterfeiting particles to be uniformly dispersed on the plastic stretching film and the boundaries to be neat.
This embodiment sets up gradual change venthole 512 through aerifing tensile circular slot 51 of absorption, and the aperture that is located the gradual change venthole 512 of intermediate position is great in order to guarantee that great gas flow when aerifing, and the aperture that is located the gradual change venthole 512 of border position is less, it is little than its intermediate position to guarantee that the adsorption affinity that the border position of the tensile membrane of plastics receives after the absorption is stretched, guarantee that the tensile membrane of plastics after the stretching obtains less adsorption affinity when aerifing the tensile circular slot 51 bottom surface of absorption and sliding, make the rete slide more smoothly, ensure the flattening degree of the tensile membrane of plastics, avoid anti-fake particle overlap joint to pile up.
In this embodiment, the tensile deformation rate of the plastic stretch film is not less than 30% to ensure the distance between the anti-counterfeit particles and avoid the lapping phenomenon between the anti-counterfeit particles. In the embodiment, the plastic stretching film forms a curved surface in an inflation expansion mode, and then the plastic stretching film is stretched and leveled by utilizing negative pressure adsorption and heating setting, so that the integral flatness of the plastic stretching film and the randomness of the distribution of anti-counterfeiting particles are improved.
Of course, the deformation rate of the plastic stretch film can be dynamically adjusted in real time by adjusting the inflation pressure, so that the distance between the anti-counterfeiting particles can be accurately controlled to meet the requirements of different products.
The heating mode of the heating shaping disc 7 adopted by the embodiment is resistance heating, and the temperature is 80-110 ℃. Meanwhile, the anti-counterfeiting particles are stored in the fluidized spraying chamber 61, and 100% recycling of the anti-counterfeiting particles is completed.
Based on the above embodiment, further, the plurality of gas injection holes are arranged in a plurality of concentric rings, and one of the gas injection holes is located at the center of the circle. So set up, ensure anti-fake granule homodisperse.
Based on the above embodiment, further, the lifting displacement mechanism 4 includes a lifting cylinder 41 and a lifting plate 42, the lifting cylinder 41 is fixed on the cantilever 3, two guide rods 43 are disposed on one side of the lifting plate 42, the two guide rods 43 movably pass through the cantilever 3 through a linear bearing, an output end of the lifting cylinder 41 is connected with one side of the lifting plate 42, and the top cover 52 is fixed on the other side of the lifting plate 42. During operation, through the flexible of lift cylinder 41, drive lifter plate 42 and reciprocate, and then drive whole adsorption equipment 5 that aerifys and reciprocate, and set up two guide bars 43, can make lifter plate 42 remove more steadily, and whole adsorption equipment 5 that aerifys reciprocates more steadily promptly, and the structure is more reliable.
On the basis of above-mentioned embodiment, furtherly, still include blowpit 8, blowpit 8 is fixed on bottom plate 1 through a discharge support, under linear displacement motor 2 and lifting displacement mechanism 4's drive, aerifys 5 tensile membrane of plasticity that adsorption equipment will finalize the design and place on blowpit 8 of adsorption equipment, then shifts out the workspace by the tensile membrane of plasticity after 8 will print of blowpit, so sets up, and the structure is more reasonable, and degree of automation is higher.
The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present patent application are included in the protection scope of the present patent application.
Claims (5)
1. The utility model provides an aerify tensile distributed anti-fake granule printing robot device which characterized in that, includes bottom plate (1), linear displacement motor (2), cantilever (3), lift displacement mechanism (4), aerifys adsorption equipment structure (5), granule fluidization mechanism (6) and heating shaping dish (7), one side on bottom plate (1) is located in linear displacement motor (2).
2. The inflatable stretching dispersion type anti-counterfeiting particle printing robot device according to claim 1, wherein one end of the cantilever (3) is connected to the output end of the linear displacement motor (2), the elevation displacement mechanism (4) is arranged at the other end of the cantilever (3), the inflatable adsorption mechanism (5) is arranged at the output end of the elevation displacement mechanism (4), and the particle fluidization mechanism (6) and the heating shaping disc (7) are sequentially arranged at the other side of the bottom plate (1); it is characterized in that the preparation method is characterized in that,
the inflation adsorption mechanism (5) comprises an inflation adsorption stretching circular groove (51), a top cover (52), a positive pressure air inlet electromagnetic valve (53) and a negative pressure air outlet electromagnetic valve (54), wherein the top cover (52) covers the top end of the inflation adsorption stretching circular groove (51) and forms a closed first air chamber with the inflation adsorption stretching circular groove (51), a central hole (511) is formed in the bottom surface of the inflation adsorption stretching circular groove (51), a plurality of rows of air outlet holes (512) which are distributed in the radial direction and the aperture of which is gradually reduced from inside to outside are arranged at intervals around the central hole (511) in the bottom surface of the inflation adsorption stretching circular groove (51), the positive pressure air inlet electromagnetic valve (53) and the negative pressure air outlet electromagnetic valve (54) are arranged on the outer annular wall of the inflation adsorption stretching circular groove (51) in a staggered mode, and the positive pressure air inlet electromagnetic valve (53) and the negative pressure air;
the particle fluidization mechanism (6) comprises a cylindrical fluidization jet chamber (61) for storing anti-counterfeiting particles, a circular sealing bearing platform (62), a compressed air jet plate (63) and a disc-shaped air jet fluidization base (64), the fluidization jet chamber (61) is fixed on the bottom plate (1), the air jet fluidization base (64) is arranged in the fluidization jet chamber (61), the compressed air jet plate (63) is embedded at the upper end of the air jet fluidization base (64) and forms a second air chamber with the air jet fluidization base (64), the air jet fluidization base (64) is provided with an air inlet nozzle communicated with the second air chamber, the air inlet nozzle extends out of the fluidization jet chamber (61) in a protruding manner, the sealing bearing platform (62) is arranged at the bottom of the fluidization jet chamber (61), and the compressed air jet plate (63) is provided with a plurality of air jet holes;
the heating shaping disc (7) is fixed on the bottom plate (1) through a shaping disc bracket.
3. The inflatable stretching dispersed anti-counterfeiting particle printing robot device according to claim 1, wherein the plurality of air injection holes are arranged in a plurality of concentric rings, wherein one of the air injection holes is located at a center of the circle.
4. The inflatable stretching dispersion type anti-counterfeiting particle printing robot device according to claim 1, wherein the lifting displacement mechanism (4) comprises a lifting cylinder (41) and a lifting plate (42), the lifting cylinder (41) is fixed on the cantilever (3), one side of the lifting plate (42) is provided with two guide rods (43), the two guide rods (43) movably penetrate through the cantilever (3) through linear bearings, the output end of the lifting cylinder (41) is connected with one side of the lifting plate (42), and the top cover (52) is fixed on the other side of the lifting plate (42).
5. The inflatable stretching dispersion type anti-counterfeiting particle printing robot device according to claim 1, further comprising a discharge chute (8), wherein the discharge chute (8) is fixed on the base plate (1) through a discharge bracket.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011314717.5A CN112371458B (en) | 2020-03-09 | 2020-03-09 | Printing method of inflatable stretching dispersion type anti-counterfeiting particle printing robot |
| CN202010155067.8A CN111215300B (en) | 2020-03-09 | 2020-03-09 | Aerify tensile distributed anti-fake granule printing robot device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010155067.8A CN111215300B (en) | 2020-03-09 | 2020-03-09 | Aerify tensile distributed anti-fake granule printing robot device |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011314717.5A Division CN112371458B (en) | 2020-03-09 | 2020-03-09 | Printing method of inflatable stretching dispersion type anti-counterfeiting particle printing robot |
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| Publication Number | Publication Date |
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| CN111215300A true CN111215300A (en) | 2020-06-02 |
| CN111215300B CN111215300B (en) | 2021-06-08 |
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| CN202011314717.5A Active CN112371458B (en) | 2020-03-09 | 2020-03-09 | Printing method of inflatable stretching dispersion type anti-counterfeiting particle printing robot |
| CN202010155067.8A Active CN111215300B (en) | 2020-03-09 | 2020-03-09 | Aerify tensile distributed anti-fake granule printing robot device |
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| CN202011314717.5A Active CN112371458B (en) | 2020-03-09 | 2020-03-09 | Printing method of inflatable stretching dispersion type anti-counterfeiting particle printing robot |
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| CN2087101U (en) * | 1991-02-09 | 1991-10-23 | 朱忠民 | Powder feeding device for powder coating fluidized-bed |
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| CN106079856A (en) * | 2016-07-15 | 2016-11-09 | 上海光和光学制造大丰有限公司 | A kind of printer |
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| CN110076056A (en) * | 2019-03-24 | 2019-08-02 | 东莞市将为防伪科技有限公司 | A kind of production equipment of Antiforge printed matter and the production method of Antiforge printed matter |
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| DE3834740A1 (en) * | 1988-10-12 | 1990-04-19 | Leybold Ag | DEVICE FOR REFILLING POWDER, IN PARTICULAR FOR A COATING DEVICE WORKING IN A VACUUM CHAMBER |
| JP2003033699A (en) * | 2001-07-26 | 2003-02-04 | Nichiden Tekkosho:Kk | Vacuum coating method and apparatus |
| JP4649642B2 (en) * | 2005-08-24 | 2011-03-16 | ブラザー工業株式会社 | Powder recovery apparatus and film forming apparatus with powder recovery apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2036823C (en) * | 1990-02-28 | 1999-05-25 | Felix Schmidt | Method of coating ceramic honeycomb members with finely-divided solids |
| CN2087101U (en) * | 1991-02-09 | 1991-10-23 | 朱忠民 | Powder feeding device for powder coating fluidized-bed |
| CN2298069Y (en) * | 1997-02-16 | 1998-11-25 | 李正仁 | Electrostatic fluidized powder plastic-coated device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN111215300B (en) | 2021-06-08 |
| CN112371458A (en) | 2021-02-19 |
| CN112371458B (en) | 2022-01-18 |
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