Code spraying robot for printed products

Abstract

The invention discloses a printing product code spraying robot which comprises a rack, a movable frame is installed on the rack, a moving frame is connected to the movable frame in a sliding mode, a temperature sensor changes along with changes of the liquid level of ink, and a stirring rod is installed outside the temperature sensor. When the temperature sensor monitors that the temperature of the ink reaches a set threshold value, the heating rod is powered off, the heated ink heats air sprayed out of the air drying pipe, and the heated air can be blown to the ink jet head to spray the ink to air the ink jet head. Compared with the prior art, the ink is uniformly heated and stirred by the heating rod through movement of the moving frame, the ink state is ensured to be stable, sprayed codes are quickly air-dried through heated air, the code spraying quality is improved, the positions of the temperature sensor and the stirring rod can be adjusted according to ink liquid level changes, and the monitoring and stirring effects are ensured; and after use, residual ink of the ink-jet head can be cleaned by air, so that blockage is prevented, and the defective rate and the production cost are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of inkjet printers, and particularly to an inkjet robot for printed products. Background Art

[0002] When an inkjet digital printer performs inkjet printing, the substrate is laid flat on the upper surface of the printing platform. The ink carriage is driven to move by a lateral movement actuator, and the printhead group is moved to a specified position according to the printing requirements. Under the control of an inkjet controller, ink is ejected from the nozzles of the printhead group and sprayed onto the substrate.

[0003] Currently, an inkjet printer with Chinese invention patent publication number CN111845074B has shown certain advantages in improving printing quality and simplifying the cleaning process. However, after in-depth analysis of its performance, it is not difficult to find that this device still has several technical defects that need to be solved urgently, and these defects are also common in the current printing machine industry.

[0004] Specifically, after the inkjet printing operation is completed, the generated finished products need to be left still for a period of time to achieve natural drying. During this drying period, the surface of the finished products is extremely sensitive. Once it comes into contact with other objects, it is very easy to cause the ink on the surface to smudge and blur, seriously affecting the appearance quality and readability of the finished products, and bringing many inconveniences to subsequent processing, storage, and use.

[0005] At the same time, the state stability of the ink in the ink cartridge is also a key factor affecting printing quality. During long-term operation, the ink in the ink cartridge is very easy to dry and form a crust due to water evaporation; in addition, when the device is in a low-temperature working environment, the ink may also lose its fluidity due to freezing. Both of these situations will cause the inkjet printer to have poor ink output during operation, and then lead to problems such as uneven printing quality and an increase in the defective rate, greatly increasing production costs and resource waste.

[0006] Furthermore, as one of the core components of an inkjet printer, the cleaning condition of the nozzle of the printhead group is directly related to printing quality. After each printing operation is completed, a certain amount of ink often remains at the nozzle. This residual ink will firmly adhere to the surface of the nozzle after drying, forming stubborn dirt, seriously hindering the normal ejection of ink during the next printing, and ultimately resulting in a decline in printing quality and affecting the overall quality of the product.

[0007] Therefore, this application proposes an inkjet robot for printed products. Summary of the Invention

[0008] The purpose of the present invention is to solve the above technical problems and propose an inkjet robot for printed products.

[0009] In order to achieve the above purpose, the present invention adopts the following technical solutions: An inkjet robot for printed products, comprising a frame, on which a movable frame is installed. A moving frame is slidably connected to the movable frame, and an installation box is installed on the moving frame. A support plate is fixed in the installation box, and an ink storage box is fixed on the support plate. At the bottom of the moving frame, an inkjet box and two hollow boxes are installed. A plurality of inkjet heads are installed at the bottom of the inkjet box, and a plurality of air drying pipes are installed at the bottom of the hollow boxes; At the upper end of the ink storage box, a short shaft rotatably arranged penetrates through. At the bottom of the short shaft, a hollow shaft rod frame body is fixed. A plurality of heating rods for heating the ink are fixed on the outer wall of the shaft rod frame body. And a temperature sensor for monitoring the ink temperature is slidably connected in the shaft rod frame body. The temperature sensor changes with the change of the ink liquid level. A stirring rod is installed outside the temperature sensor; When the temperature of the ink monitored by the temperature sensor reaches the set threshold, the heating rods are powered off. The heated ink heats the air ejected from the air drying pipes, and the heated air can blow towards the ink ejected by the inkjet heads to dry it.

[0010] Preferably, it further includes a driving mechanism for realizing the rotation of the short shaft. A gear with interference fit is sleeved outside the short shaft. A rack plate penetrates through the installation box, and the rack plate meshes with the gear. Two positioning plates are fixed on the movable frame, and both ends of the rack plate are fixed on the positioning plates.

[0011] Preferably, it further includes a pumping mechanism for conveying air into the air drying pipes. The pumping mechanism includes two piston cylinders respectively fixed on the two positioning plates. A piston ring is slidably connected in the piston cylinder. A conveying pipe fixedly connected is penetrated through the piston ring. The conveying pipe penetrates through the installation box and is fixedly connected to it. A first one-way valve is installed on the conveying pipe. An air inlet pipe is installed on the piston cylinder. A second one-way valve is installed on the air inlet pipe. An air collecting box is installed at the upper end of the ink storage box. The air collecting box is communicated with the two conveying pipes. A spiral pipe surrounding the outside of the shaft rod frame body is arranged in the ink storage box. Both ends of the spiral pipe are respectively fixed with a first hose and a second hose. The first hose is connected to the two hollow boxes through a Y-shaped pipe, and a first electromagnetic valve is installed on the first hose. The second hose is connected to the air collecting box.

[0012] Preferably, a pump body is installed on the ink storage box. The liquid outlet end of the pump body is installed with a liquid outlet pipe, and the liquid outlet pipe is communicated with the inkjet box. A second electromagnetic valve is installed on the liquid outlet pipe. The first hose and the liquid outlet pipe are connected through an intermediate pipe, and a third electromagnetic valve is installed on the intermediate pipe.

[0013] Preferably, it further includes a driving mechanism for driving the temperature sensor to move. The driving mechanism includes a sleeve fixed inside the shaft rod frame. A sealing block is slidably connected inside the sleeve. A driving rod is fixed to the bottom of the sealing block. The temperature sensor is installed at the bottom of the driving rod.

[0014] Preferably, it further includes an adjusting mechanism. The adjusting mechanism includes a fixed block fixed to the inner wall of the ink storage cartridge. An airbag is fixed to the upper end of the fixed block. An L-shaped frame is fixed to the airbag. A floating block with a counterweight inside is fixed to the bottom of the L-shaped frame. The floating block floats on the ink. An air supply pipe is installed at the upper end of the airbag. The air supply pipe is rotatably connected to the short shaft and is also rotatably connected to the sleeve.

[0015] Preferably, a power supply pipe is fixed to the bottom of the shaft rod frame. The power supply pipe penetrates through the ink storage cartridge and is rotatably connected to it. An electrical rotary joint is installed at the bottom of the power supply pipe.

[0016] Preferably, the inkjet cartridge abuts against two hollow cartridges, and the hollow cartridges are located on both sides of the inkjet cartridge.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By arranging hollow cartridges on both sides of the inkjet cartridge and equipping with air drying pipes in the present invention, and using a pumping mechanism to convey heated air into the air drying pipes, the ink ejected is quickly dried. The heated air can significantly improve the air drying efficiency, reduce the chance of the surface of the finished product contacting other objects, thereby avoiding the ink stain from smudging and blurring, ensuring the appearance quality and readability of the finished product, and providing convenience for subsequent processing, storage and use.

[0018] 2. A heating rod and a stirring rod are arranged in the ink storage cartridge in the present invention. Through a gear and rack transmission mechanism, the heating rod and the stirring rod rotate reciprocally to heat and stir the ink, ensuring that the ink is evenly heated and effectively preventing the problem of poor ink ejection caused by the ink drying and crusting or freezing at low temperature.

[0019] 3. After the work is completed in the present invention, by switching the on-off state of the solenoid valve, the inkjet cartridge and the inkjet head are cleaned with the heated air in the air collection box, effectively removing the residual ink, preventing the ink from adhering to the nozzle after drying, thus ensuring the normal ejection of the ink during the next printing, prolonging the service life of the nozzle, and improving the printing quality.

[0020] 4. The present invention also sets an adjusting mechanism. Through the linkage of components such as the floating block, the airbag, and the L-shaped frame, the automatic adjustment of the temperature sensor and the stirring rod along with the change of the ink liquid level is realized, ensuring the accuracy of the ink temperature monitoring and the uniformity of the stirring. This intelligent adjustment mechanism enables the present invention to adapt to the inkjet coding requirements under different working conditions, improving the adaptability and stability of the equipment.

[0021] 5. The present invention utilizes the movement of the moving frame as power, enabling the intermittent supply of air into the air collection box by two piston cylinders, providing flowing air for subsequent air drying and also for cleaning the inkjet head.

[0022] 6. Meanwhile, the temperature sensor can monitor the ink temperature in real time and control the power on and off of the heating rod through the controller, ensuring that the ink temperature always remains within the suitable range for inkjet printing, thereby improving the printing quality and reducing the defective rate.

[0023] In summary, compared with the prior art, the present invention realizes the uniform heating and stirring of the ink by the heating rod through the movement of the moving frame, ensures the stable state of the ink, uses heated air to quickly air-dry the inkjet code, improves the inkjet code quality, can adjust the positions of the temperature sensor and the stirring rod according to the change of the ink liquid level, guarantees the monitoring and stirring effects, and can also use air to clean the residual ink on the inkjet head after use to prevent blockage, reduce the defective rate and production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of an inkjet coding robot for printed products proposed by the present invention; Figure 2 It is a front view of the moving frame in an inkjet coding robot for printed products proposed by the present invention; Figure 3 It is a schematic structural diagram of the split part of the piston cylinder in an inkjet coding robot for printed products proposed by the present invention; Figure 4 It is a schematic structural diagram of the interior of the installation box in an inkjet coding robot for printed products proposed by the present invention; Figure 5 It is a schematic structural diagram of the gear and rack plate in an inkjet coding robot for printed products proposed by the present invention; Figure 6 It is a cross-sectional view of the ink storage cartridge in an inkjet coding robot for printed products proposed by the present invention; Figure 7 It is a schematic structural diagram of the spiral tube in an inkjet coding robot for printed products proposed by the present invention; Figure 8 It is a schematic structural diagram of the shaft rod frame in an inkjet coding robot for printed products proposed by the present invention; Figure 9 It is a schematic structural diagram of the sleeve in an inkjet coding robot for printed products proposed by the present invention; Figure 10 It is a schematic structural diagram of the equal distribution of the first solenoid valve, etc. in an inkjet coding robot for printed products proposed by the present invention.

[0025] In the figure: 1 frame, 2 movable frame, 3 installation box, 4 moving frame, 5 inkjet cartridge, 6 hollow box, 7 inkjet head, 8 air drying pipe, 9 pump body, 10 liquid outlet pipe, 12 second one-way valve, 11 support plate, 13 ink storage cartridge, 14 power supply pipe, 15 piston cylinder, 16 rack plate, 17 air supply pipe, 18 air collection box, 19 delivery pipe, 20 gear, 21 short shaft, 22 spiral pipe, 23 first hose, 24 second hose, 25 airbag, 26 floating block, 27 L-shaped frame, 28 fixed block, 29 shaft rod frame body, 30 heating rod, 31 sleeve, 32 stirring rod, 33 temperature sensor, 34 driving rod, 35 sealing block, 36 positioning plate, 37 intermediate pipe, 38 first solenoid valve, 39 second solenoid valve, 40 third solenoid valve, 41 piston ring, 42 first one-way valve, 43 intake pipe. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0027] Refer to Figures 1-10 , an inkjet robot for printed products, including a frame 1, a movable frame 2 is installed on the frame 1, the movable frame 2 can move along the Y-axis direction on the frame 1, a moving frame 4 is slidably connected to the movable frame 2, and the moving frame 4 moves along the X-axis on the movable frame 2, so as to facilitate subsequent inkjet printing.

[0028] An installation box 3 is installed on the moving frame 4, a support plate 11 is fixed in the installation box 3, an ink storage cartridge 13 is fixed on the support plate 11, an inkjet cartridge 5 and two hollow boxes 6 are installed at the bottom of the moving frame 4, the inkjet cartridge 5 abuts against the two hollow boxes 6, and the hollow boxes 6 are located on both sides of the inkjet cartridge 5.

[0029] A plurality of inkjet heads 7 are installed at the bottom of the inkjet cartridge 5, a pump body 9 is installed on the ink storage cartridge 13, a liquid outlet pipe 10 is installed at the liquid outlet end of the pump body 9, the liquid outlet pipe 10 is communicated with the inkjet cartridge 5, a second solenoid valve 39 is installed on the liquid outlet pipe 10, the first hose 23 and the liquid outlet pipe 10 are connected through an intermediate pipe 37, and a third solenoid valve 40 is installed on the intermediate pipe 37.

[0030] A plurality of air drying pipes 8 are installed at the bottom of the hollow box 6. Further detailed explanation of the air drying pipes 8: It also includes a pumping mechanism for delivering air into the air drying pipes 8. The pumping mechanism includes two piston cylinders 15 respectively fixed on two positioning plates 36. A piston ring 41 is slidably connected in the piston cylinder 15. A delivery pipe 19 fixedly connected is penetrated through the piston ring 41. The delivery pipe 19 penetrates through the installation box 3 and is fixedly connected thereto. A first one-way valve 42 is installed on the delivery pipe 19. The first one-way valve 42 only allows air to be delivered into the delivery pipe 19 through the piston cylinder 15.

[0031] An intake pipe 43 is installed on the piston cylinder 15, and a second one-way valve 12 is installed on the intake pipe 43. The second one-way valve 12 only allows air to enter the piston cylinder 15 through the intake pipe 43; an air collecting box 18 is installed at the upper end of the ink storage cartridge 13. The air collecting box 18 is communicated with two conveying pipes 19, and the air collecting box 18 can be connected to the conveying pipe 19 through a short pipe; a spiral pipe 22 surrounding the outside of the shaft rod frame 29 is arranged in the ink storage cartridge 13, and the spiral pipe 22 is in a vortex shape; the two ends of the spiral pipe 22 are respectively fixed with a first hose 23 and a second hose 24. The first hose 23 is connected to two hollow boxes 6 through a Y-shaped pipe, and a first electromagnetic valve 38 is installed on the first hose 23. The second hose 24 is connected to the air collecting box 18.

[0032] A short shaft 21 rotatably arranged penetrates through the upper end of the ink storage cartridge 13. A driving mechanism for realizing the rotation of the short shaft 21 is further included. An interference-fitted gear 20 is sleeved outside the short shaft 21. A rack plate 16 penetrates through the mounting box 3. The rack plate 16 meshes with the gear 20. Two positioning plates 36 are fixed on the movable frame 2. The two ends of the rack plate 16 are fixed on the positioning plates 36. The movement of the moving frame 4 drives the gear 20 to roll on the rack plate 16, realizing the rotation of the gear 20.

[0033] The bottom of the short shaft 21 is fixed with a hollow shaft rod frame 29. A plurality of heating rods 30 for heating the ink are fixed on the outer wall of the shaft rod frame 29. The bottom of the shaft rod frame 29 is fixed with a power supply pipe 14. The power supply pipe 14 penetrates through the ink storage cartridge 13 and is rotatably connected to it. An electrical rotary joint is installed at the bottom of the power supply pipe 14, so that the heating rods 30 and the temperature sensor 33 can be powered while not affecting the rotation of the heating rods 30.

[0034] And a temperature sensor 33 for monitoring the ink temperature is slidably connected inside the shaft rod frame 29. The temperature sensor 33 changes with the change of the ink liquid level. A driving mechanism for driving the temperature sensor 33 to move is further included. The driving mechanism includes a sleeve 31 fixed inside the shaft rod frame 29. A sealing block 35 is slidably connected inside the sleeve 31. A driving rod 34 is fixed at the bottom of the sealing block 35. The temperature sensor 33 is installed at the bottom of the driving rod 34.

[0035] Further explanation: A regulating mechanism is further included. The regulating mechanism includes a fixed block 28 fixed on the inner wall of the ink storage cartridge 13. An airbag 25 is fixed at the upper end of the fixed block 28. An L-shaped frame 27 is fixed on the airbag 25. A floating block 26 with a counterweight inside is fixed at the bottom of the L-shaped frame 27. The floating block 26 floats on the ink. An air supply pipe 17 is installed at the upper end of the airbag 25. The air supply pipe 17 is rotatably connected to the short shaft 21 and is also rotatably connected to the sleeve 31.

[0036] The outside of the temperature sensor 33 is equipped with a stirring rod 32. A collar is installed on the temperature sensor 33, and the stirring rod 32 is installed on the collar. When the temperature sensor 33 monitors that the temperature of the ink reaches the set threshold, the heating rod 30 is powered off. There is also a controller. When the temperature sensor 33 monitors that the temperature reaches the threshold, a signal is transmitted to the controller, and the controller controls the heating rod 30 to be powered off. When the temperature is lower than the set threshold, the controller controls the heating rod 30 to be powered on.

[0037] The heated ink heats the air ejected from the air drying pipe 8, and the heated air can blow towards the ink ejected from the inkjet head 7 to dry it.

[0038] When the present invention is in use, the moving frame 4 reciprocates on the movable frame 2 to drive the inkjet cartridge 5 to move. The pump body 9 works to transport the ink in the inkjet cartridge 5 through the liquid outlet pipe 10 to the inside of the inkjet cartridge 5, and then it is ejected through the inkjet head 7, and the articles placed on the frame 1 can be inkjet coded.

[0039] At this time, the first solenoid valve 38 and the second solenoid valve 39 are in the open state, and the third solenoid valve 40 is in the closed state.

[0040] Since the rack plate 16 cannot move, during the reciprocating movement of the moving frame 4, the gear 20 can reciprocally roll on the rack plate 16. The rotation of the gear 20 drives the short shaft 21 and the shaft rod frame 29 to rotate. The rotation of the shaft rod frame 29 drives the external heating rod 30 and the stirring rod 32 to rotate reciprocally. The rotating heating rod 30 can heat the ink and stir the ink, making the ink heat more evenly, so as to ensure the heating efficiency and uniformity of the ink.

[0041] Since the temperature sensor 33 is located at the ink liquid level, when the temperature monitored by the temperature sensor 33 reaches the set threshold, it indicates that the overall temperature of the ink rises, which is beneficial to the inkjet coding operation. The controller controls the heating rod 30 to be powered off, so that the ink is no longer heated.

[0042] The reciprocating movement of the moving frame 4 drives the two ends of the conveying pipe 19 to reciprocate. As Figure 2 shown, when the moving frame 4 moves to the left on the movable frame 2, it will drive the left conveying pipe 19 and the piston ring 41 to move. The piston ring 41 squeezes the air in the piston cylinder 15, and the first one-way valve 42 opens. The air is transported through the conveying pipe 19 to the air collecting box 18. The right conveying pipe 19 and the piston ring 41 move to the left, and the second one-way valve 12 opens, and the external air can enter the piston cylinder 15 through the air inlet pipe 43. When the moving frame 4 moves to the right on the movable frame 2, the left piston cylinder 15 intakes air, and the air in the right piston cylinder 15 is transported to the air collecting box 18. In this way, air can be continuously transported to the air collecting box 18.

[0043] The air in the air collecting box 18 is conveyed into the spiral tube 22 through the second hose 24, and then conveyed into the first hose 23 through the spiral tube 22. Since the ink is heated, the air will be heat-exchanged when passing through the spiral tube 22 located in the ink, so that the air can be heated. The heated air flows into the hollow box 6 through the first hose 23 and the Y-shaped tube, and finally sprays out through the air drying tube 8. Since the air is heated, the sprayed ink can be quickly dried, thus ensuring the quality of the inkjet coding and not easily causing damage to the inkjet coding pattern due to subsequent contact with the ink.

[0044] Due to the first hose 23 and the second hose 24 connected to both ends of the spiral tube 22, the spiral tube 22 can move within a certain range in the ink, causing the position of the spiral tube 22 and the heated ink to change, and enabling more effective heat exchange of the air.

[0045] As the ink is used, the floating block 26 will change with the change of the ink liquid level. When the floating block 26 moves downward, it will drive the L-shaped frame 27 to move downward. The downward movement of the L-shaped frame 27 squeezes the airbag 25, and the air inside can be conveyed into the sleeve 31 through the air supply pipe 17. The increased pressure in the sleeve 31 will drive the sealing block 35, the driving rod 34, the temperature sensor 33, and the stirring rod 32 to move downward. For example, when the liquid level drops by 10 mm, it will drive the temperature sensor 33 to drop by 10 mm, enabling the temperature sensor 33 to always monitor the temperature of the ink, so as to ensure that the temperature of the heated ink meets the inkjet coding requirements.

[0046] This also makes the stirring rod 32 change with the change of the ink liquid level, ensuring that the ink can be effectively stirred and making its temperature more uniform after heating.

[0047] When adding ink, on the contrary, the temperature sensor 33 can be moved upward.

[0048] After use, the pump body 9 is closed, and the moving frame 4 still reciprocates. The first solenoid valve 38 and the third solenoid valve 40 are opened, and the second solenoid valve 39 is closed. Therefore, the heated air in the air collecting box 18 is conveyed into the liquid outlet pipe 10 through the first hose 23 and the intermediate pipe 37. The air is conveyed into the inkjet cartridge 5 through the liquid outlet pipe 10, so as to clean the residual ink in the inkjet cartridge 5 and the inkjet head 7, preventing the ink from drying and clogging the inkjet head 7 for subsequent use.

[0049] The sprayed ink can be collected by a collecting tray.

[0050] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, should be covered by the protection scope of the present invention.

Claims

1. An inkjet coding robot for printed products, comprising a frame (1), on which a movable frame (2) is installed, and a moving frame (4) is slidably connected to the movable frame (2), characterized in that, An installation box (3) is installed on the moving frame (4). A support plate (11) is fixed inside the installation box (3). An ink storage box (13) is fixed on the support plate (11). An inkjet cartridge (5) and two hollow boxes (6) are installed at the bottom of the moving frame (4). A plurality of inkjet heads (7) are installed at the bottom of the inkjet cartridge (5). A plurality of air drying pipes (8) are installed at the bottom of the hollow box (6). A short shaft (21) which is rotatably arranged penetrates through the upper end of the ink storage box (13). A hollow shaft rod frame body (29) is fixed at the bottom of the short shaft (21). A plurality of heating rods (30) for heating the ink are fixed on the outer wall of the shaft rod frame body (29). A temperature sensor (33) for monitoring the ink temperature is slidably connected inside the shaft rod frame body (29). The temperature sensor (33) changes along with the change of the ink liquid level. A stirring rod (32) is installed outside the temperature sensor (33). When the temperature sensor (33) monitors that the temperature of the ink reaches the set threshold value, the heating rods (30) are powered off. The heated ink heats the air ejected from the air drying pipes (8), and the heated air can blow towards the ink ejected from the inkjet heads (7) to dry it.

2. The inkjet robot for printed products according to claim 1, characterized in that, It further includes a driving mechanism for realizing the rotation of the short shaft (21). A gear (20) with an interference fit is sleeved outside the short shaft (21). A rack plate (16) penetrates through the installation box (3). The rack plate (16) is meshed with the gear (20). Two positioning plates (36) are fixed on the movable frame (2). Both ends of the rack plate (16) are fixed on the positioning plates (36).

3. The inkjet robot for printed products according to claim 2, characterized in that, It further includes a pumping mechanism for conveying air into the air drying pipes (8). The pumping mechanism includes two piston cylinders (15) respectively fixed on the two positioning plates (36). A piston ring (41) is slidably connected inside the piston cylinder (15). A conveying pipe (19) which is fixedly connected penetrates through the piston ring (41). The conveying pipe (19) penetrates through the installation box (3) and is fixedly connected with it. A first one-way valve (42) is installed on the conveying pipe (19). An air inlet pipe (43) is installed on the piston cylinder (15). A second one-way valve (12) is installed on the air inlet pipe (43). An air collecting box (18) is installed at the upper end of the ink storage box (13). The air collecting box (18) is communicated with the two conveying pipes (19). A spiral pipe (22) surrounding the outside of the shaft rod frame body (29) is arranged inside the ink storage box (13). Two ends of the spiral pipe (22) are respectively fixed with a first hose (23) and a second hose (24). The first hose (23) is connected with the two hollow boxes (6) through a Y-shaped pipe, and a first electromagnetic valve (38) is installed on the first hose (23). The second hose (24) is connected with the air collecting box (18).

4. The inkjet robot for printed products according to claim 1, wherein A pump body (9) is installed on the ink storage cartridge (13). An outlet pipe (10) is installed at the liquid outlet end of the pump body (9). The outlet pipe (10) is communicated with the inkjet cartridge (5). A second solenoid valve (39) is installed on the outlet pipe (10). The first hose (23) and the outlet pipe (10) are connected through an intermediate pipe (37). A third solenoid valve (40) is installed on the intermediate pipe (37).

5. The inkjet robot for printed products according to claim 1, characterized in that, It further includes a driving mechanism for driving the temperature sensor (33) to move. The driving mechanism includes a sleeve (31) fixed inside the shaft rod frame (29). A sealing block (35) is slidably connected inside the sleeve (31). A driving rod (34) is fixed to the bottom of the sealing block (35). The temperature sensor (33) is installed at the bottom of the driving rod (34).

6. The inkjet robot for printed products according to claim 5, wherein It further includes an adjusting mechanism. The adjusting mechanism includes a fixed block (28) fixed to the inner wall of the ink storage cartridge (13). An airbag (25) is fixed to the upper end of the fixed block (28). An L-shaped frame (27) is fixed to the airbag (25). A floating block (26) with a counterweight inside is fixed to the bottom of the L-shaped frame (27). The floating block (26) floats on the ink. An air supply pipe (17) is installed at the upper end of the airbag (25). The air supply pipe (17) is rotatably connected to the short shaft (21) and is also rotatably connected to the sleeve (31).

7. The inkjet robot for printed products according to claim 1, characterized in that, A power supply pipe (14) is fixed to the bottom of the shaft rod frame (29). The power supply pipe (14) penetrates through the ink storage cartridge (13) and is rotatably connected to it. An electrical rotary joint is installed at the bottom of the power supply pipe (14).

8. A coding robot for printed products according to claim 1, characterized in that, The inkjet cartridge (5) abuts against two hollow cartridges (6). The hollow cartridges (6) are located on both sides of the inkjet cartridge (5).

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