CN112356566A

CN112356566A - RFID electronic tag antenna printing equipment based on graphene conductive paste

Info

Publication number: CN112356566A
Application number: CN202011202988.1A
Authority: CN
Inventors: 刘振禹; 陈韶华; 马有明; 李健; 孙式方; 李传龙
Original assignee: SHANDONG HUAGUAN SMART CARD CO Ltd
Current assignee: SHANDONG HUAGUAN SMART CARD CO Ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-02-12
Anticipated expiration: 2040-11-02
Also published as: CN112356566B

Abstract

The invention relates to RFID electronic tag antenna printing equipment based on graphene conductive paste, which comprises a power mechanism, a jet printing mechanism and a feeding mechanism. The power mechanism comprises a driving device, a power output shaft, a first cam structure and a second cam structure, wherein the first cam structure and the second cam structure are sleeved on the power output shaft and synchronously output displacement; the spray printing mechanism comprises a spray head, a module, a first shell and a printing table, and under the transmission of the first cam mechanism, when the spray head sprays slurry to the module, the first shell drives the module to move to the printing table; the feeding mechanism comprises a material fixing structure, a second shell and a feeding pipe, the material fixing mechanism and the second shell form a material fixing cavity, the size of the material fixing cavity is reduced under the transmission of the second cam mechanism, and slurry in the cavity is conveyed to the spray head along the feeding pipe to be sprayed out. According to the invention, the slurry channel is skillfully formed, so that the effects of saving graphene slurry and reducing pollution to the graphene slurry in the printing process are achieved, and the printing method is suitable for printing of various antennas.

Description

RFID electronic tag antenna printing equipment based on graphene conductive paste

Technical Field

The invention relates to the technical field of graphene, in particular to RFID electronic tag antenna printing equipment based on graphene conductive paste.

Background

The RFID is also called a radio frequency identification technology, is a non-contact data automatic acquisition technology, and is one of core technologies of the internet of things. At present, the technology is widely applied to almost all fields of logistics storage, transportation, security and anti-counterfeiting, mobile payment and the like. A typical RFID system consists of a reader, a tag and background software, wherein the RFID electronic tag is a system data carrier for storing object information, belongs to consumable goods, and is increased in the blowout mode along with the popularization and application of the Internet of things technology in various fields. The RFID antenna is a communication induction antenna, and at present, the RFID antenna is divided into a metal etching antenna, a printing antenna, a copper plating antenna and the like due to different materials and manufacturing processes. The printed antenna has short production period, but is gradually eliminated by the market due to unreliable performance consistency and service life of the finished product. In recent years, graphene antennas have emerged due to the development of graphene technology.

Printing graphite alkene antenna generally adopts the intaglio printing technology at present, and it generally all is furnished with the recovery unit who is used for collecting the unnecessary graphite alkene thick liquids that strikes off from the cylinder, causes the thick liquids extravagant, and graphite alkene thick liquids receive the pollution easily when adopting the intaglio printing technology, influences its performance.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides the RFID electronic tag antenna printing equipment based on the graphene conductive paste, which can save the graphene paste, reduce the pollution to the graphene paste in the printing process and is suitable for printing various antennas.

The technical scheme adopted by the invention is as follows:

RFID electronic tags antenna lithography apparatus based on graphite alkene electrically conducts thick liquids includes power unit, spouts seal mechanism and feeding mechanism. The power mechanism comprises a driving device, a power output shaft, a first cam structure and a second cam structure, wherein the power output shaft is connected with the driving device, the first cam structure and the second cam structure are sleeved on the power output shaft, the first cam structure outputs a first displacement around the power output shaft, the first cam structure and the second cam structure are synchronous, the second cam structure outputs a second displacement around the power output shaft, and the first displacement and the second displacement are synchronous; the jet printing mechanism comprises a nozzle, a module, a first shell and a printing table, wherein the module is positioned in the jet direction of the nozzle and connected with the first shell, the module and the nozzle form a material spraying cavity in the first shell, the module is also provided with a model hole which is the same as the material spraying cavity, the printing table is positioned on one side of the module far away from the nozzle, the projection of the module in the vertical direction can be projected onto the printing table, a first cam structure is connected with one side of the first shell far away from the module, and the first shell can drive the module to move towards the printing table under the action of first displacement; the feeding mechanism comprises a material fixing structure, a second shell and a feeding pipe, the material fixing structure comprises a material fixing rod and a pushing material connected with one end of the material fixing rod, a pushing plate and a second shell part form a closed material fixing cavity at one side far away from the material fixing rod, the feeding pipe is communicated with the material fixing cavity and is connected with a spray head, the pushing plate is further provided with a feeding hole with a one-way valve, a second cam mechanism is connected with one end, far away from the pushing plate, of the material fixing rod, the pushing plate is pushed by the material fixing rod under the action of second displacement, the size of the material fixing cavity is reduced, graphene conductive slurry is sprayed to the module along the feeding pipe through the spray head under the action of pressure, and therefore the RFID electronic tag antenna in the shape of a model hole is formed on the printing table.

The working process of the invention is that the power output shaft rotates under the drive of the driving device to drive the first cam structure and the second cam structure sleeved on the power output shaft to synchronously output the first displacement and the second displacement, the material fixing rod pushes the material pushing plate under the drive of the second displacement, the volume of the material fixing cavity is reduced, the graphene conductive slurry is discharged from the material fixing cavity under the pressure effect, and the graphene conductive slurry can only be sprayed to the module from the material conveying pipe through the spray head due to the one-way valve arranged at the material inlet of the material pushing plate. The first displacement and the second displacement are synchronous, so that when the graphene conductive slurry is sprayed to the module, the first shell drives the module to move towards the printing table under the action of the first displacement, the module is tightly pressed on the electronic label bottom film on the printing table, and the antenna can be formed on the electronic label bottom film due to the fact that the module is provided with the model hole. Therefore, the equipment forms a closed feeding channel, reduces pollution of the graphene conductive slurry, reduces waste of the graphene conductive slurry and saves raw materials.

Furthermore, the cam mechanism comprises a base, an adjustable part, a roller part and a connecting part, wherein the base is of a disc-shaped structure, the adjustable part is of a crescent structure with one concave side and one convex side, the base is connected with the concave side of the adjustable part through the connecting part, the distance between the base and the adjustable part can be changed through the connecting part, the roller part is in contact with the convex side of the adjustable part, and the diameter of the roller part is larger than the adjustable maximum distance between the base and the adjustable part. Therefore, the size of the graphene conductive paste required by the electronic tag antenna is the reduction amount of the volume of the fixed material cavity, so that the reduction amount of the volume of the fixed material cavity can be changed according to the required amount of different graphene conductive pastes. The electronic tag antenna with different graphene conductive slurry quantity requirements can be formed without replacing the whole cam structure.

Furthermore, the connecting piece is a screw rod, and the base and the adjustable piece are provided with thread grooves matched with the screw rod. Obviously, the matching of the screw thread and the screw rod can enable the distance between the adjustable part and the base to be adjusted more conveniently and quickly.

Furthermore, the base is provided with a first thread groove which is opened in the end face direction of the base, the first thread groove is positioned on one side, close to the adjustable part, of the base, a second thread groove which is opened in the end face direction is also arranged on the adjustable part, the second thread groove is positioned on one side, close to the base, of the adjustable part, two ends of the screw rod are respectively matched with the first thread groove and the second thread groove, the end face of the base is also provided with scales, and therefore the screw rod can be rotated on the surface of the end face of the base or the adjustable part. When the demand of regulating variable, the setting up of this structure makes the screw rod can be contacted by direct contact, makes the regulation more convenient, and the setting up of scale also makes the regulating variable clear visible, and is more accurate, improves printing performance.

Further, the pattern holes are raised on the side of the mold member near the printing table. When the graphene slurry is sprayed to the module, the module presses against the printing table, and the electronic label bottom film on the printing table is in the shape of an electronic label, the convex structure also presses against the electronic label bottom film, so that the model hole and the electronic label bottom film form a closed space, the shape of the antenna is clearer, and the performance of the electronic label antenna is improved.

Furthermore, a plurality of spray heads are arranged, and the spray directions of the spray heads face the model holes. Due to the design of the plurality of spray heads, the graphene conductive slurry in the model hole is more uniform, and the performance of the electronic tag antenna is improved.

Further, RFID electronic tags antenna lithography apparatus based on graphite alkene conductive paste still includes storage mechanism, and storage mechanism includes third casing, discharging pipe, and the third casing encloses into the storage cavity, and the third casing is equipped with the discharge gate of connecting storage cavity and discharging pipe, and discharge gate and feed inlet are connected to the discharging pipe, and the third casing is keeping away from discharge gate one side and still seted up the communicating air vent with the storage cavity. The design of the storage mechanism enables the whole device not to be polluted and ensures the performance of the electronic tag.

Further, the storage mechanism is provided with a plurality of layers of filtering pieces at the vent hole part. The multilayer filter piece makes this equipment cleaner, guarantees for electronic tags's performance.

Furthermore, a water level sensor is arranged at a position, close to the discharge port, of the third shell. When the graphene conductive paste in the storage cavity is too little, the water level sensor gives an alarm to remind an administrator of adding the graphene conductive paste, and unqualified electronic tag antennas are avoided being formed.

Further, the discharge gate is located the one side that the third casing is close ground, and the feed inlet highly is less than the height of discharge gate in vertical direction, from this, under the action of gravity, graphite alkene electrically conductive thick liquids can follow the discharge gate and follow the discharging pipe and enter into the ration chamber through the feed inlet.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a side view of FIG. 1, schematically illustrating structure of FIG. 13;

FIG. 3 is a schematic top view of FIG. 1 at 21;

fig. 4 is a schematic top view of another structure 21 in fig. 1.

In the figure, the position of the upper end of the main shaft,

1. a power mechanism; 10. a drive device; 11. a power take-off shaft; 12. a first cam structure; 13. a second cam structure; 130. a base; 131. an adjustable member; 132. a roller member; 133. a connecting member; 1300. a first thread groove; 1301. a second thread groove;

2. a jet printing mechanism; 20. a spray head; 21. a module; 22. a first housing; 23. a printing table; 24. a material spraying cavity; 25. a pattern hole;

3. a feeding mechanism; 30. a material fixing structure; 301. a material fixing rod; 302. a material pushing plate; 31. a second housing; 32. a feed pipe; 33. a material fixing cavity; 34. a feed inlet;

4. a material storage mechanism; 40. a third housing; 41. a discharge pipe; 42. a material storage cavity; 43. a discharge port; 44. a vent hole; 45. a filter member; 46. a water level sensor.

Detailed Description

In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings, in which the same reference numerals indicate the same or structurally similar but functionally identical elements.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the present application, unless otherwise specifically stated or limited, the terms "nested," "connected," "communicating," "coupled," and the like are to be construed broadly, e.g., a first cam structure nested with a second cam structure nested with a power take-off shaft; the first cam structure is connected to a side of the first housing remote from the module. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

As shown in fig. 1 to 4, the graphene conductive paste-based RFID electronic tag antenna printing device includes a power mechanism 1, a jet printing mechanism 2, and a feeding mechanism 3. The power mechanism 1 comprises a driving device 10, a power output shaft 11, a first cam structure 12 and a second cam structure 13, wherein the power output shaft 11 is connected with the driving device 10, the first cam structure 12 and the second cam structure 13 are sleeved on the power output shaft 11, the first cam structure 12 outputs a first displacement around the power output shaft 11, the first displacement and the second displacement are synchronous, the second cam structure 13 outputs a second displacement around the power output shaft 11, and the first displacement and the second displacement are synchronous; the jet printing mechanism 2 comprises a spray head 20, a module 21, a first shell 22 and a printing table 23, wherein the module 21 is positioned in the jet direction of the spray head 20 and connected with the first shell 22, a material spraying cavity 24 is formed in the first shell 22 together with the spray head 20, the module 21 is also provided with a model hole 25 which is the same as the material spraying cavity 24, the printing table 23 is positioned on one side of the module 21 away from the spray head 20, the projection of the module 21 along the vertical direction can be projected on the printing table 23, the first cam structure 12 is connected with one side of the first shell 22 away from the module 21, and under the action of first displacement, the first shell 22 can drive the module 21 to move towards the printing table 23; the feeding mechanism 3 comprises a material fixing structure 30, a second shell 31 and a feeding pipe 32, the material fixing structure 30 comprises a material fixing rod 301 and a material pushing plate 302 connected with one end of the material fixing rod 301, the material pushing plate 302 and the second shell 31 form a closed material fixing cavity 33 on the side far away from the material fixing rod 301, the feeding pipe 32 is communicated with the material fixing cavity 33 and is connected with the spray head 20, the material pushing plate 302 is further provided with a feeding hole 34 with a one-way valve, the second cam structure 13 is connected with one end of the material fixing rod 301 far away from the material pushing plate 302, under the action of second displacement, the material fixing rod 301 pushes the material pushing plate 302, the volume of the material fixing cavity 33 is reduced, graphene conductive slurry is sprayed to the module 21 through the spray head 20 along the material feeding pipe 32 under the action of pressure, and therefore, the RFID electronic tag antenna in the shape of the mold hole 25 is formed on the printing table 23.

The working process of the device is that the power output shaft 11 rotates under the driving of the driving device 10 to drive the first cam structure 12 and the second cam structure 13 sleeved on the power output shaft to synchronously output the first displacement and the second displacement, the material fixing rod 301 pushes the material pushing plate 302 under the driving of the second displacement, the volume of the material fixing cavity 33 is reduced, the graphene conductive slurry is discharged from the material fixing cavity 33 under the pressure effect, and the graphene conductive slurry can only be sprayed to the module 21 from the material conveying pipe 32 through the spray head 20 because the feed inlet 34 on the material pushing plate 302 is provided with the one-way valve. The first displacement and the second displacement are synchronous, so that when the graphene conductive paste is sprayed to the module 21, under the action of the first displacement, the first shell 22 drives the module 21 to move towards the printing table 23 and tightly press the electronic label bottom film on the printing table 23, and the module 21 is provided with the model hole 25, so that the antenna can be formed on the electronic label bottom film. Therefore, the equipment forms a closed feeding channel, reduces pollution of the graphene conductive slurry, reduces waste of the graphene conductive slurry and saves raw materials.

As shown in fig. 2, the second cam structure 13 includes a base 130, an adjustable member 131, a roller member 132, and a connecting member 133, wherein the base 130 is a disc-shaped structure, the adjustable member 131 is a crescent-shaped structure with a concave side and a convex side, the base 130 is connected with the concave side of the adjustable member 131 through the connecting member 133, the distance between the base 130 and the adjustable member 131 can be changed by the connecting member 133, the roller member 132 is in contact with the convex side of the adjustable member 131, and the diameter of the roller member 132 is greater than the maximum adjustable distance between the base 130 and the adjustable member 131. As can be seen from the above, the amount of the graphene conductive paste required for forming the electronic tag antenna is the reduction amount of the volume of the fixing cavity 33, so that the reduction amount of the volume of the fixing cavity 33 can be changed according to the required amount of different graphene conductive pastes, the cam mechanism divides the conventional cam into two parts, and the distance between the adjustable part 131, i.e. the protruding part of the cam, and the base 130 is adjusted by the connecting part 133, so that the displacement output by the cam structure can be changed, thereby changing the reduction amount of the volume of the fixing cavity 33, and enabling the sprayer 20 to spray out the amount of the graphene conductive paste required for forming the electronic tag antenna. The electronic tag antenna with different graphene conductive slurry quantity requirements can be formed without replacing the whole cam structure.

Specifically, as shown in fig. 2, the connecting member 133 is a screw, and the base 130 and the adjustable member 131 are provided with a threaded groove matching with the screw. Obviously, the matching of the screw and the screw can make the distance between the adjustable component 131 and the base 130 more convenient and faster.

Specifically, as shown in fig. 2, the base 130 is provided with a first thread groove 1300 which is open in the end surface direction, the first thread groove 1300 is located on one side of the base 130 close to the adjustable member 131, the adjustable member 131 is also provided with a second thread groove 1301 which is open in the end surface direction, the second thread groove 1301 is located on one side of the adjustable member 131 close to the base 130, two ends of the screw are respectively matched with the first thread groove 1300 and the second thread groove 1301, and the end surface of the base 130 is also provided with scales, so that the screw can be rotated on the surface of the end surface of the base 130 or the adjustable member 131. When the demand of regulating variable, the setting up of this structure makes the screw rod can be contacted by direct contact, makes the regulation more convenient, and the setting up of scale also makes the regulating variable clear visible, and is more accurate, improves printing performance.

In particular, as shown in fig. 3-4, the molding aperture 25 is raised on the side of the molding 21 proximate to the printing table 23. When the graphene slurry is sprayed to the module 21, the module 21 presses the printing table 23, and the electronic label bottom film on the printing table 23 is in the shape of an electronic label, the convex structure also presses the electronic label bottom film, so that the mold hole 25 and the electronic label bottom film form a closed space, the shape of the antenna is clearer, and the performance of the electronic label antenna is improved.

Preferably, the spray head 20 is provided in several numbers, and its spray direction is directed toward the pattern holes 25. Due to the design of the plurality of spray heads 20, the graphene conductive slurry in the model holes 25 is more uniform, and the performance of the electronic tag antenna is improved.

As shown in fig. 1, the RFID electronic tag antenna printing apparatus based on graphene conductive paste further includes a storage mechanism 4, the storage mechanism 4 includes a third housing 40 and a discharge pipe 41, the third housing 40 encloses a storage cavity 42, the third housing 40 is provided with a discharge hole 43 connecting the storage cavity 42 and the discharge pipe 41, the discharge pipe 41 is connected with the discharge hole 43 and the feed inlet 34, and the third housing 40 is further provided with a vent hole 44 communicating with the storage cavity 42 on a side away from the discharge hole 43. The design of the storage mechanism 4 enables the whole device not to be polluted and ensures the performance of the electronic tag.

Preferably, the magazine 4 is provided with a plurality of layers of filter elements 45 in the vent hole 44 portion. The multilayer filter piece 45 makes this equipment cleaner, guarantees for electronic tags's performance.

Specifically, as shown in fig. 1, the third housing 40 is provided with a water level sensor 46 near the discharge port 43. When the graphene conductive paste in the storage cavity 42 is too little, the water level sensor 46 gives an alarm to remind an administrator of adding the graphene conductive paste, so that unqualified electronic tag antennas are avoided.

Specifically, as shown in fig. 1, the discharge hole 43 is located on one side of the third casing 40 close to the ground, and the height of the feed hole 34 in the vertical direction is lower than that of the discharge hole 43, so that the graphene conductive slurry can enter the sizing chamber 33 from the discharge hole 43 along the discharge pipe 41 through the feed hole 34 under the action of gravity.

The above-described embodiments should not be construed as limiting the scope of the invention, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.

The present invention is not described in detail, but is known to those skilled in the art.

Claims

1. RFID electronic tag antenna printing equipment based on graphene conductive paste is characterized by comprising,

the power mechanism comprises a driving device, a power output shaft, a first cam structure and a second cam structure, wherein the power output shaft is connected with the driving device, the first cam structure and the second cam structure are sleeved on the power output shaft, the first cam structure outputs a first displacement around the power output shaft, the second cam structure outputs a second displacement around the power output shaft, and the first displacement and the second displacement are synchronously output;

the jet printing mechanism comprises a spray head, a module, a first shell and a printing table, wherein the module is positioned on one side of the spray direction of the spray head and is connected with the first shell, the module and the spray head form a spray cavity in the first shell, the module is provided with a model hole communicated with the spray cavity, the printing table is positioned on one side of the module away from the spray head, the projection of the module in the vertical direction can be projected onto the printing table, the first cam structure is connected with one side of the first shell away from the module, and the first shell drives the module to move towards the printing table under the action of first displacement;

the feeding mechanism comprises a material fixing structure, a second shell and a feeding pipe, the material fixing structure comprises a material fixing rod and a material pushing plate connected with one end of the material fixing rod, a closed material fixing cavity is formed between one side, far away from the material fixing rod, of the material pushing plate and the second shell, the feeding pipe is communicated with the material fixing cavity and is connected with the spray head, a feed port with a one-way valve is further formed in the material pushing plate, the second cam structure is connected with one end, far away from the material pushing plate, of the material fixing rod, the material pushing plate is pushed by the material fixing rod under the action of second displacement, the size of the material fixing cavity is reduced, graphene conductive slurry is sprayed to the module along the feeding pipe through the spray head, and the RFID electronic tag antenna in the shape of the model hole is formed on the printing table.

2. The RFID electronic tag antenna printing device based on graphene conductive paste according to claim 1,

cam mechanism includes base, adjustable piece, roller spare, connecting piece, the base is disc structure, adjustable piece is the bellied crescent structure in one side recess, the base with one side of the sunken of adjustable piece is passed through the connecting piece is connected, the base with distance between the adjustable piece can by the connecting piece changes, the roller spare with bellied one side contact of adjustable piece, just the diameter of roller spare is greater than the base with the biggest distance of adjustable piece adjustable.

3. The RFID electronic tag antenna printing device based on graphene conductive paste according to claim 2,

the connecting piece is a screw rod, and the base and the adjustable piece are provided with thread grooves matched with the screw rod.

4. The RFID electronic tag antenna printing device based on graphene conductive paste according to claim 3,

the base is provided with a first thread groove which is opened in the end face direction, the first thread groove is located on one side, close to the adjustable part, of the base, a second thread groove which is opened in the end face direction is also arranged on the adjustable part, the second thread groove is located on one side, close to the base, of the adjustable part, two ends of the screw rod are respectively matched with the first thread groove and the second thread groove, the screw rod can be rotated on the surface of the base or the end face of the adjustable part, and the end face of the base is further provided with scales.

5. The RFID electronic tag antenna printing device based on graphene conductive paste according to claim 1,

the pattern hole is protruded on a side of the mold near the printing table.

6. The RFID electronic tag antenna printing device based on graphene conductive paste according to claim 1,

the spray heads are provided with a plurality of spray heads, and the spray directions of the plurality of spray heads face the model holes.

7. The RFID electronic tag antenna printing device based on graphene conductive paste according to claim 1, further comprising,

the material storage mechanism comprises a third shell and a discharge pipe, the third shell is enclosed into a material storage cavity, the third shell is connected with the material storage cavity and a discharge hole of the discharge pipe, the discharge pipe is connected with the discharge hole and the feed inlet, and the third shell is far away from one side of the discharge hole and is further provided with a vent hole communicated with the material storage cavity.

8. The RFID electronic tag antenna printing device based on graphene conductive paste according to claim 7,

the storage mechanism is provided with a filtering piece at the vent hole, and the filtering piece is provided with a plurality of layers.

9. The RFID electronic tag antenna printing device based on graphene conductive paste according to claim 7,

and a water level sensor is arranged at the position, close to the discharge port, of the third shell.

10. The RFID electronic tag antenna printing device based on graphene conductive paste according to claim 7,

the discharge gate is located one side that the third casing is close ground, the feed inlet highly is less than in vertical direction the height of discharge gate, under the action of gravity, graphite alkene electrically conductive thick liquids can be followed the discharge gate is followed the discharging pipe warp the feed inlet gets into the ration material chamber.