A double-sided inkjet device for QR code anti-counterfeiting labels

Abstract

The present invention relates to the field of coding technology, and specifically discloses a double-sided coding device for a two-dimensional code anti-counterfeiting label, including two fixed plates and label paper, a plurality of guide rollers are rotatably installed inside the two fixed plates, one end of the label paper is sequentially fitted with the outer walls of the plurality of guide rollers, a coding mechanism is provided on the top and one side of the two fixed plates, and an automatic deviation correction mechanism for guiding and correcting the position of the label paper is provided between the two coding mechanisms and the two fixed plates. In the invention, by means of two coding devices provided on the outer wall of one side of one of the fixed plates, coding can be performed on both sides of the label paper at the same time, achieving the effect of automatic double-sided coding; and by means of the automatic deviation correction mechanism provided, the position of the label paper on the surface of the plurality of guide rollers can be guided and corrected, ensuring that the subsequent two nozzles can accurately perform coding processing on the label paper, thereby indirectly improving the coding quality of the label paper.

Description

Technical Field

[0001] The invention relates to the technical field of coding, and in particular to a double-sided coding device for a two-dimensional code anti-counterfeiting label. Background Art

[0002] QR code anti-counterfeiting label is a label that uses QR code technology for anti-counterfeiting. By embedding encrypted information such as product information and anti-counterfeiting verification code into the QR code, each QR code contains different encrypted information. Consumers only need to scan it with their mobile phones to verify the authenticity of the product. This label has the following characteristics: Convenience: Consumers can scan the code with their mobile phones anytime and anywhere without the need for professional equipment Uniqueness: Each QR code is unique and difficult to copy, effectively combating counterfeiting and shoddy products; Rich information: In addition to the anti-counterfeiting function, it can also display product details, traceability information, etc., to improve consumer transparency. The production process of QR code anti-counterfeiting labels is relatively simple. You only need to use the corresponding inkjet device to print the QR barcode on materials such as self-adhesive stickers and coated paper.

[0003] When the inkjet coding device in the prior art is coding on the two-dimensional code anti-counterfeiting label paper, it is usually only able to code on one side of the label paper, and cannot code on both sides of the label paper; and in the process of coding the label paper, the label paper is continuously pulled and transported by the traction mechanism, which may cause the position of the label paper to deviate. Since the inkjet coding device in the prior art is not provided with a corresponding correction mechanism, after the position of the label paper deviates, it is impossible to accurately code it, thereby affecting the production of the two-dimensional code anti-counterfeiting label and failing to meet people's usage needs. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to provide a double-sided coding device for a two-dimensional code anti-counterfeiting label.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A double-sided coding device for a two-dimensional code anti-counterfeiting label comprises two fixed plates and label paper, wherein a plurality of guide rollers are rotatably installed inside the two fixed plates, one end of the label paper is sequentially fitted with the outer walls of the plurality of guide rollers, a coding mechanism for coding the surface of the label paper is arranged on the top and one side of the two fixed plates, and an automatic deviation correction mechanism for guiding and correcting the position of the label paper is arranged between the two coding mechanisms and the two fixed plates.

[0007] Optionally, the coding mechanism includes two groups of fixed frames installed on the outer wall of one of the fixed plates away from the multiple guide rollers, the outer walls of the two groups of fixed frames are provided with a first slide groove, the interiors of the two first slide grooves are provided with a first slider, and the two first sliders are commonly provided with a moving block at one end away from the first slide groove.

[0008] Optionally, a coding device is installed on the outer wall of one side of the two movable blocks close to the fixed plate, a nozzle is installed on the end of the two coding devices close to the label paper, and a first hose for connecting to an external preset ink tank is installed on the end of the two coding devices away from the label paper.

[0009] Optionally, the automatic deviation-correcting mechanism includes a second slide groove opened on the outer wall of the two fixed plates away from one side, a second slider is installed inside the two second slide grooves, and a first movable plate is installed on one end of the two second sliders away from the second slide groove.

[0010] Optionally, two electric telescopic rods are installed on the top of the two first movable plates, and the second movable plate is commonly installed on the telescopic ends of the two electric telescopic rods.

[0011] Optionally, two through slots are provided inside the second movable plate, double-headed screws are rotatably installed inside the two through slots, two movable seats are installed on the outer walls of the two double-headed screws, and rubber blocks are installed on the bottom ends of the two movable seats.

[0012] Optionally, a hollow plate is installed on the top of the two movable seats through a rotating shaft, a cleaning pad is installed on the bottom of the two hollow plates, a first connecting end is installed on the top of the two hollow plates, and a second hose connected to an external preset spray mechanism is installed inside the two first connecting ends.

[0013] Optionally, a heating part is provided at the center of the top of the second movable plate, a rectangular groove is provided inside the second movable plate located inside the heating part, a heating plate is installed inside the rectangular groove, a second connecting end connected to an external preset blowing structure is installed on one side of the second movable plate, and an air outlet for discharging hot air is provided at the bottom of the second movable plate.

[0014] Optionally, a groove is provided on an outer wall of one side of the second movable plate, a winding roller is rotatably installed inside the groove, and a heat-insulating cloth is rolled up on the outer wall of the winding roller.

[0015] Optionally, a connecting plate is installed at one end of the heat insulation cloth away from the winding roller, a handle is installed on the top of the connecting plate, and two electromagnets are installed on the outer wall of one side of the connecting plate away from the heat insulation cloth.

[0016] The beneficial effects of the present invention are:

[0017] 1. In the present invention, by means of two coding devices arranged on the outer wall of one side of one of the fixed plates, coding can be performed on both sides of the label paper at the same time, thereby achieving the effect of automatic double-sided coding; and by means of the automatic deviation correction mechanism, the position of the label paper on the surface of multiple guide rollers can be guided and corrected, thereby ensuring that the subsequent two nozzles can accurately perform coding processing on the label paper, thereby indirectly improving the coding quality of the label paper.

[0018] 2. In the present invention, during the use of the two nozzles, without affecting the use of the two nozzles, the hot air discharged through the air outlets arranged on the two second movable plates close to the label paper side can accelerate the drying of the ink on the surface of the label paper, thereby facilitating the subsequent winding of the label paper after inkjet printing and reducing the contamination of the label paper after inkjet printing caused by undried ink.

[0019] 3. In the invention, after the two nozzles have completed the coding work on the label paper, the two hollow plates on the outer wall of one side of the two second movable plates are controlled to rotate 90 degrees in the direction close to the nozzle, so that the two cleaning pads are rotated to a position close to the nozzle, and the two corresponding double-headed screws are controlled to drive the two movable seats to move in the direction close to each other. At the same time, the two cleaning pads after rotation and adjustment can be driven to contact with the nozzle holes of the nozzle, so that the cleaning pad adsorbed with detergent can clean and remove the ink residual in the nozzle, which is convenient for the subsequent use of the nozzle.

[0020] 4. In the invention, when the inkjet coding device has not been used for a long time, the residual ink inside it will be in a viscous state, affecting the flow of ink inside the nozzle and posing a risk of clogging the nozzle. At this time, the heating plate can be controlled to start first, so that the heating parts arranged on the outer walls of one side of the two second movable plates have high temperatures at the same time, and the two nozzles are controlled to abut against the heating parts of the two second movable plates respectively. At this time, the high temperature of the heating part can heat the nozzles synchronously, so that the ink inside the nozzles maintains a constant temperature, thereby reducing the viscosity of the ink, increasing its fluidity, ensuring that the printed text or pattern is clear and uniform, and avoiding blur or shapelessness. In addition, by heating the nozzles, it can also ensure that the inkjet coding device can maintain a stable printing effect at any ambient temperature, reducing the limitations of the inkjet coding device during actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of a double-sided coding device for a two-dimensional code anti-counterfeiting label proposed by the present invention;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure from another angle;

[0024] Figure 3 It is a structural schematic diagram of the coding mechanism in the present invention;

[0025] Figure 4 It is a structural schematic diagram of the coding device in the present invention;

[0026] Figure 5 It is a structural schematic diagram of the automatic deviation correction mechanism in the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of two double-headed screws and a movable seat in the present invention;

[0028] Figure 7 It is a structural schematic diagram of the hollow plate and the movable seat being separated in the present invention;

[0029] Figure 8 It is a structural schematic diagram of the second movable plate in the present invention;

[0030] Fig. 9 It is a structural schematic diagram of the bottom of the second movable plate in the present invention;

[0031] Fig.10 It is a structural cross-sectional view of the second movable plate in the present invention;

[0032] Fig.11 It is a schematic diagram of the structure of the winding roller and the heat insulation cloth in the present invention;

[0033] Fig.12 It is a schematic diagram of the structure after the two second movable plates in the present invention move.

[0034] In the figure: 1. fixed plate; 2. guide roller; 3. label paper; 4. second slide; 5. fixed frame; 6. inkjet equipment; 7. nozzle; 8. first movable plate; 9. second movable plate; 10. movable block; 11. first hose; 12. first slide; 13. first slider; 14. second slider; 15. electric telescopic rod; 16. heating part; 17. through groove; 18. movable seat; 19. second connecting end; 20. double-headed screw; 21. rubber block; 22. hollow plate; 23. second hose; 24. first connecting end; 25. cleaning pad; 26. rotating shaft; 27. groove; 28. winding roller; 29. ​​air outlet; 30. heating plate; 31. rectangular groove; 32. connecting plate; 33. handle; 34. heat insulation cloth; 35. electromagnet. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Reference Figure 1-Figure 12 A double-sided inkjet device for a two-dimensional code anti-counterfeiting label comprises two fixed plates 1 and label paper 3. A plurality of guide rollers 2 are rotatably installed inside the two fixed plates 1. One end of the label paper 3 is sequentially fitted with the outer walls of the plurality of guide rollers 2. A inkjet mechanism for inkjet coding the surface of the label paper 3 is disposed on the top and one side of the two fixed plates 1. An automatic deviation correction mechanism for guiding and correcting the position of the label paper 3 is disposed between the two inkjet mechanisms and the two fixed plates 1.

[0037] As a technical optimization solution of the present invention, the inkjet mechanism includes two sets of fixed frames 5 installed on the outer wall of one side of a fixed plate 1 away from the plurality of guide rollers 2, the outer walls of the two sets of fixed frames 5 are provided with first slide grooves 12, the interiors of the two first slide grooves 12 are provided with first sliders 13, and the ends of the two first sliders 13 away from the first slide grooves 12 are jointly provided with a moving block 10. First linear motors are preset inside the two first slide grooves 12, and the two first linear motors can drive the two first sliders 13 to move up and down inside the corresponding first slide grooves 12, and drive the moving block 10 to move up and down synchronously.

[0038] As a technical optimization solution of the present invention, the outer wall of one side of the two moving blocks 10 close to the fixed plate 1 is installed with a coding device 6, the end of the two coding devices 6 close to the label paper 3 is installed with a nozzle 7, and the end of the two coding devices 6 away from the label paper 3 is installed with a first hose 11 for connecting with an external preset ink tank. When the two moving blocks 10 move up and down, the height of the coding device 6 can be adjusted, so that the distance between the nozzle 7 and the label paper 3 can be automatically adjusted; the coding device 6 is equipped with a corresponding ink tank, which is connected to the ink tank through the first hose 11, so that the ink can enter the interior of the coding device 6 through the first hose 11, and finally sprayed on the surface of the label paper 3 through the nozzle 7 to achieve the coding effect.

[0039] As a technical optimization solution of the present invention, the automatic deviation correction mechanism includes a second chute 4 opened on the outer wall of the two fixed plates 1 away from one side, and the second sliders 14 are installed inside the two second chute 4, and the first movable plate 8 is installed at one end of the two second sliders 14 away from the second chute 4. A second linear motor is preset inside the two second chute 4, and the two second linear motors can drive the two second sliders 14 to move back and forth inside the corresponding second chute 4, and drive the two first movable plates 8 to move and adjust on the outer wall of the fixed plate 1.

[0040] As a technical optimization solution of the present invention, two electric telescopic rods 15 are installed on the top of the two first movable plates 8, and the telescopic ends of the two electric telescopic rods 15 are commonly installed with the second movable plate 9. The telescopic ends of the two electric telescopic rods 15 can drive the spacing between the second movable plate 9 and the fixed plate 1 to be adjusted.

[0041] As a technical optimization solution of the present invention, two through slots 17 are provided inside the second movable plate 9, and double-headed screws 20 are rotatably installed inside the two through slots 17, and two movable seats 18 are installed on the outer walls of the two double-headed screws 20, and rubber blocks 21 are installed at the bottom ends of the two movable seats 18. Two first driving devices are preset inside the second movable plate 9, and the output ends of the two first driving devices are respectively connected to one end of the two double-headed screws 20, so that the two double-headed screws 20 can be driven to rotate inside the corresponding through slots 17, and the two movable seats 18 can be driven to move in a direction of approaching or moving away from each other, so that the two rubber blocks 21 can push the label paper 3 on the surface of the multiple guide rollers 2 to move and adjust toward the center position while moving in a direction of approaching, so as to ensure that the nozzle 7 can accurately spray the pattern on the corresponding position of the label paper 3, thereby improving the accuracy of the nozzle 7 coding.

[0042] As a technical optimization solution of the present invention, the tops of the two moving seats 18 are both rotatably mounted with hollow plates 22 through rotating shafts 26, the bottoms of the two hollow plates 22 are both mounted with cleaning pads 25, the tops of the two hollow plates 22 are both mounted with first connecting ends 24, and the insides of the two first connecting ends 24 are both mounted with second hoses 23 connected to the external preset liquid spraying mechanism. The insides of the two moving seats 18 are both preset with second driving devices, and the output ends of the two second driving devices are respectively connected to the corresponding rotating shafts 26, so as to drive the two hollow plates 22 to rotate and adjust on the tops of the corresponding moving seats 18; the external liquid spraying mechanism is preset with a cleaning agent that can clean the ink sprayed from the nozzle 7, and the cleaning agent can be guided to the inside of the hollow plate 22 by means of the second hose 23, and the cleaning agent can be adsorbed and temporarily stored by means of the cleaning pad 25.

[0043] As a technical optimization solution of the present invention, a heating part 16 is provided at the center of the top of the second movable plate 9, a rectangular groove 31 is provided inside the second movable plate 9 located inside the heating part 16, a heating plate 30 is installed inside the rectangular groove 31, a second connecting end 19 connected to an external preset blower mechanism is installed on one side of the second movable plate 9, and an air outlet 29 for discharging hot air is provided at the bottom of the second movable plate 9. The heating plate 30 is a common electric heating plate in the prior art, so that the heating plate 30 can generate heat inside the rectangular groove 31 after being powered on, and after the external preset blower mechanism is connected to the second connecting end 19 through a third hose, the generated wind force can enter the interior of the rectangular groove 31 and be discharged downward through the air outlet 29, so as to quickly dry the ink sprayed on the surface of the label paper 3.

[0044] As a technical optimization solution of the present invention, a groove 27 is provided on the outer wall of one side of the second movable plate 9, a winding roller 28 is rotatably installed inside the groove 27, and the outer wall of the winding roller 28 is rolled up with the heat insulation cloth 34. A third driving device is preset on the outer wall of one side of the second movable plate 9, and the output end of the third driving device is connected to the rotating part of the winding roller 28, so that the winding roller 28 can be driven to rotate inside the groove 27, so that the heat insulation cloth 34 can be rolled up and unfolded.

[0045] As a technical optimization solution of the present invention, a connecting plate 32 is installed at one end of the heat insulation cloth 34 away from the winding roller 28, a handle 33 is installed on the top of the connecting plate 32, and two electromagnets 35 are installed on the outer wall of the connecting plate 32 away from the heat insulation cloth 34. After the heat insulation cloth 34 is unfolded, the handle 33 can be manually taken to drive the connecting plate 32 to pull the heat insulation cloth 34, so that the heat insulation cloth 34 is covered on the top of the second movable plate 9, and is magnetically fixed to the outer wall of the second movable plate 9 by means of two energized electromagnets 35, so as to facilitate the limit fixation of one end of the unfolded heat insulation cloth 34.

[0046] In the present invention, when the user uses the device, Figure 1 and Figure 2 As shown, after one end of the label paper 3 to be coded is successively fitted with the surfaces of multiple guide rollers 2, it is wound around the surface of a preset winding device. Without affecting the use of the nozzle 7, the two first movable plates 8 are controlled to drive the two second movable plates 9 to move in a direction away from the coding device 6, so that the nozzles 7 of the two coding devices 6 can spray ink on the upper and lower surfaces of the label paper 3, thereby achieving the effect of double-sided coding. As the winding device continues to rotate, the label paper 3 that has been automatically coded can be wound up, and the subsequent label paper 3 can be driven to perform double-sided coding operations.

[0047] Before the two nozzles 7 perform coding on the label paper 3, the nozzles 7 need to be debugged to ensure that the subsequent coding can be performed accurately. Figure 1 and Figure 2 As shown, the two second movable plates 9 are respectively located between the two nozzles 7 and the two fixed plates 1. By controlling the height of the two movable blocks 10 between the two groups of fixed frames 5 to adjust, the distance between the two nozzles 7 and the second movable plates 9 is adjusted accordingly, so that the nozzle 7 can spray ink on the surface of the second movable plate 9, so that the staff can adjust the position of the nozzle 7 according to actual usage requirements, so as to facilitate the subsequent coding work of the label paper 3.

[0048] After the nozzle 7 sprays the ink onto the surface of the second movable plate 9, the staff adjusts the nozzle 7 to a suitable state and controls the two double-headed screws 20 to rotate, thereby driving the two movable seats 18 to move towards each other, so that the cleaning pads 25 arranged at the bottom of the two hollow plates 22 can clean the ink on the surface of the second movable plate 9. The cleaning agent adsorbed inside the cleaning pads 25 can better clean and remove the ink, thereby facilitating the subsequent use of the second movable plate 9.

[0049] Moreover, after the label paper 3 is placed on the surface of the multiple guide rollers 2, the telescopic ends of the multiple electric telescopic rods 15 can be controlled to shrink together, driving the two second movable plates 9 to move in the direction close to the fixed plate 1, and then driving the two movable seats 18 to move in the direction close to the electric telescopic rod 15. The rubber blocks 21 are located on both sides of the label paper 3. As the two corresponding double-headed screws 20 are controlled to rotate, the two movable seats 18 are driven to move in the direction of approaching each other, while the two rubber blocks 21 are driven to push the two sides of the label paper 3 toward the center position, which has the effect of guiding and correcting the position of the label paper 3 on the surface of the multiple guide rollers 2, ensuring that the subsequent two nozzles 7 can accurately perform coding processing on the label paper 3, indirectly improving the coding quality of the label paper 3.

[0050] Furthermore, during the use of the two nozzles 7, the positions of the two second movable plates 9 are as follows: Fig.12 As shown, without affecting the use of the two nozzles 7, the hot air discharged through the air outlet 29 arranged on the side of the two second movable plates 9 close to the label paper 3 can accelerate the drying of the ink on the surface of the label paper 3, thereby facilitating the subsequent winding of the label paper 3 after inkjet printing and reducing the contamination of the label paper 3 after inkjet printing caused by the undried ink.

[0051] For example, if it is necessary to temporarily suspend the coding work during the use of the two nozzles 7, the two second movable plates 9 can be controlled to move to a position close to the two nozzles 7 again, which has a barrier effect between the two nozzles 7 and the label paper 3, avoiding the nozzles 7 from being accidentally started and the ink is sprayed on other positions of the label paper 3, which affects the coding effect.

[0052] After the two nozzles 7 have completed the coding work on the label paper 3, it is necessary to clean and remove the ink remaining on the surface of the two nozzles 7. The two hollow plates 22 on the outer wall of one side of the two second movable plates 9 are controlled to rotate 90 degrees in the direction close to the nozzle 7, so that the two cleaning pads 25 are rotated to a position close to the nozzle 7. The two corresponding double-headed screws 20 are controlled to drive the two movable seats 18 to move in the direction close to each other, and the two cleaning pads 25 after rotation adjustment can be driven to move in the direction close to the nozzle 7. The spacing between the nozzle 7 and the second movable plate 9 is controlled to be adaptively adjusted, so that when the two cleaning pads 25 move in the direction close to each other, the two cleaning pads 25 can both contact the nozzle hole of the nozzle 7, so that the cleaning pads 25 adsorbed with detergent can clean and remove the ink remaining on the nozzle 7, which is convenient for the subsequent use of the nozzle 7.

[0053] When the inkjet device 6 has not been used for a long time, the residual ink inside it will be in a viscous state, affecting the flow of ink inside the nozzle 7 and posing a risk of clogging the nozzle 7. At this time, the heating plate 30 can be controlled to start, so that the heating parts 16 arranged on the outer walls of one side of the two second movable plates 9 have high temperatures at the same time, and the two nozzles 7 are controlled to abut against the heating parts 16 of the two second movable plates 9 respectively. At this time, the high temperature of the heating part 16 can heat the nozzles 7 synchronously, so that the ink inside the nozzles 7 maintains a constant temperature, thereby reducing the viscosity of the ink, increasing its fluidity, ensuring that the printed text or pattern is clear and uniform, and avoiding blurring or shapelessness. In addition, by heating the nozzles 7, it can also ensure that the inkjet device 6 can maintain a stable printing effect at any ambient temperature, thereby reducing the limitations of the inkjet device 6 during actual use.

[0054] At the same time, while the nozzle 7 is heated, the two winding rollers 28 are controlled to rotate to drive the two pieces of thermal insulation cloth 34 to unfold. The handle 33 can be manually taken to drive the connecting plate 32 to pull the thermal insulation cloth 34, so that the thermal insulation cloth 34 is covered on the top of the second movable plate 9, and is magnetically fixed to the outer wall of the second movable plate 9 by means of two energized electromagnets 35, so as to facilitate the limiting and fixing of one end of the unfolded thermal insulation cloth 34. At this time, the heat generated by the heating part 16 can be quickly conducted to the inside of the nozzle 7, thereby reducing heat loss and improving the heating efficiency of the nozzle 7.

[0055] After the cleaning pad 25 cleans the ink on the surface of the second movable plate 9 and the surface of the nozzle 7, the cleaning pad 25 is controlled to move to a position close to the heating part 16. The heat generated by the heating part 16 can quickly dry and remove the residual detergent inside the cleaning pad 25, making it convenient for the cleaning pad 25 to temporarily adsorb and store subsequent detergents, reduce the amount of used detergent remaining inside the cleaning pad 25, and ensure that the cleaning effect of the cleaning pad 25 on the ink is always in good condition.

[0056] After the inkjet device 6 is used, the staff completes the maintenance of the inkjet device 6 and the nozzle 7 and can repeat the above steps of covering the surface of the second movable plate 9 with the help of the heat-insulating cloth 34. This has the effect of shielding and protecting the nozzle 7 and multiple components arranged inside the second movable plate 9, making it convenient for the subsequent use of these components and increasing their service life.

[0057] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A double-sided inkjet device for a two-dimensional code anti-counterfeiting label, comprising two fixing plates (1) and label paper (3), characterized in that: A plurality of guide rollers (2) are rotatably mounted inside the two fixed plates (1), one end of the label paper (3) is sequentially fitted with the outer walls of the plurality of guide rollers (2), a coding mechanism for coding the surface of the label paper (3) is disposed on the top and one side of the two fixed plates (1), and an automatic deviation correction mechanism for guiding and correcting the position of the label paper (3) is disposed between the two coding mechanisms and the two fixed plates (1); The automatic deviation-correcting mechanism comprises a second slide groove (4) provided on an outer wall of a side away from the two fixed plates (1), a second slider (14) being installed inside the two second slide grooves (4), and a first movable plate (8) being installed at one end of the two second sliders (14) away from the second slide groove (4); Two electric telescopic rods (15) are installed on the top of the two first movable plates (8), and the second movable plate (9) is installed on the telescopic ends of the two electric telescopic rods (15); The second movable plate (9) has two through slots (17) formed therein, and double-headed screws (20) are rotatably mounted inside the two through slots (17). Two movable seats (18) are mounted on the outer walls of the two double-headed screws (20), and rubber blocks (21) are mounted at the bottom ends of the two movable seats (18); A heating portion (16) is provided at the center of the top of the second movable plate (9); a rectangular groove (31) is provided inside the second movable plate (9) and located inside the heating portion (16); a heating plate (30) is installed inside the rectangular groove (31); a second connecting end (19) connected to an external preset blower mechanism is installed on one side of the second movable plate (9); and an air outlet (29) for discharging hot air is provided at the bottom of the second movable plate (9).

2. A double-sided coding device for a two-dimensional code anti-counterfeiting label according to claim 1, characterized in that: The inkjet printing mechanism comprises two sets of fixed frames (5) mounted on the outer wall of one of the fixed plates (1) away from the plurality of guide rollers (2), the outer walls of the two sets of fixed frames (5) are each provided with a first slide groove (12), the interiors of the two first slide grooves (12) are each provided with a first slider (13), and the ends of the two first sliders (13) away from the first slide groove (12) are jointly provided with a moving block (10).

3. A double-sided coding device for a two-dimensional code anti-counterfeiting label according to claim 2, characterized in that: The outer walls of the two movable blocks (10) on one side close to the fixed plate (1) are both equipped with a coding device (6); the ends of the two coding devices (6) close to the label paper (3) are both equipped with a nozzle (7); and the ends of the two coding devices (6) away from the label paper (3) are both equipped with a first hose (11) for connecting to an external preset ink tank.

4. The double-sided coding device for a two-dimensional code anti-counterfeiting label according to claim 1, characterized in that: A hollow plate (22) is rotatably mounted on the top of the two movable seats (18) via a rotating shaft (26), a cleaning pad (25) is mounted on the bottom of the two hollow plates (22), a first connecting end (24) is mounted on the top of the two hollow plates (22), and a second hose (23) connected to an external preset liquid spraying mechanism is mounted inside the two first connecting ends (24).

5. The double-sided coding device for a two-dimensional code anti-counterfeiting label according to claim 1, characterized in that: A groove (27) is provided on an outer wall of one side of the second movable plate (9), a winding roller (28) is rotatably mounted inside the groove (27), and a heat insulating cloth (34) is rolled up on the outer wall of the winding roller (28).

6. A double-sided coding device for a two-dimensional code anti-counterfeiting label according to claim 5, characterized in that: A connecting plate (32) is installed at one end of the heat insulation cloth (34) away from the winding roller (28), a handle (33) is installed on the top of the connecting plate (32), and two electromagnets (35) are installed on the outer wall of one side of the connecting plate (32) away from the heat insulation cloth (34).

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