Wall decoration printing device

Abstract

The invention relates to the field of wall decoration, in particular to a wall decoration printing device which comprises a bottom plate and further comprises an L-shaped frame, a jet printing head, a moving mechanism, a cleaning mechanism and an air drying mechanism, the moving mechanism is fixedly installed at the top end of the bottom plate, the L-shaped frame is installed on one side of the moving mechanism, and the jet printing head is fixedly arranged on the surface of the L-shaped frame; the air drying mechanism and the cleaning mechanism are arranged above and below the jet printing head respectively, the cleaning mechanism comprises a cleaning brush, a rotating assembly and a telescopic assembly, the air drying mechanism comprises a water conveying pipe, a conveying assembly, a transmission assembly and a plurality of jet heads, and the air drying mechanism and the cleaning mechanism are arranged above and below the jet printing head respectively. When the jet printing head moves to print a wall surface, cleaning of the wall surface and air drying of a printing position can be synchronously completed, namely, cleaning, printing, air drying and other work can be synchronously completed through one-time work, extra tools are not needed for cleaning and air drying, and time and labor are saved.

Description

Technical Field

[0001] The invention relates to the field of wall decoration, in particular to a wall decoration printing device. Background Art

[0002] Wall decoration printing (also known as wall printing or wall art printing) refers to the process of applying patterns, text, textures, or images directly to a wall surface through specific printing techniques or processes. Wall printing is computer-programmed, allowing users to create graphic designs on a computer. The printed designs are then applied to the wall using a printing device. Computer programming controls the printing process, ensuring color accuracy and consistency, enhancing design precision and print quality.

[0003] When painting wall decoration, you need to follow the order from top to bottom. The paint tends to flow downwards when it is not dry. The order from top to bottom can effectively prevent the paint from dripping and contaminating the painted area.

[0004] The existing wall decoration printing device has the following shortcomings: When printing on the wall, there is no guarantee that the wall surface to be painted is smooth. If there is dust or putty powder on the wall surface, it will affect the subsequent painting effect. After painting is completed, the painted area cannot be air-dried in time, causing the paint to dry too slowly. Gravity will cause the uncured paint to sag, forming unsightly "sags" or "tear marks". At the same time, wet paint is exposed to the air for a long time and easily absorbs pollutants such as dust and hair, affecting the decorative effect. Summary of the Invention

[0005] The object of the present invention is to provide a wall decoration printing device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A wall decoration printing device comprises a base plate, an L-shaped frame, a printing head, a moving mechanism, a cleaning mechanism and an air drying mechanism; The moving mechanism is fixedly installed on the top of the bottom plate, the L-shaped frame is installed on one side of the moving mechanism, the printing head is fixedly set on the surface of the L-shaped frame, and the air drying mechanism and the cleaning mechanism are respectively arranged above and below the printing head; The cleaning mechanism includes a cleaning brush, a rotating assembly and a telescopic assembly. The cleaning brush is located below the print head and is slidably arranged on one side of the L-shaped frame. The telescopic assembly is located on one side of the cleaning brush, and the rotating assembly is located between the telescopic assembly and the moving mechanism. The air-drying mechanism includes a water pipe, a conveying assembly, a transmission assembly and several nozzles. The water pipe is located above the printing head and fixed to the surface of the L-shaped frame. Several nozzles are installed at equal distances on the surface of the water pipe. The conveying assembly is located on the side of the L-shaped frame away from the water pipe, and the transmission assembly is located between the conveying assembly and the telescopic assembly.

[0007] As a further solution of the present invention: the moving mechanism includes a second electric slide, a second mounting plate, a third electric slide, a third mounting plate, two first electric slides and two first mounting plates, the two first electric slides are symmetrically fixed to the top of the base plate, each first mounting plate is installed above a first electric slide, the second electric slide is fixed to the top of the two first mounting plates, the second mounting plate is installed above the second electric slide, the third electric slide is fixed to the top of the second mounting plate, the third mounting plate is installed on one side of the third electric slide, and the L-shaped frame is fixed to the side of the third mounting plate away from the third electric slide.

[0008] As a further solution of the present invention: the telescopic assembly includes a support plate, a turntable, a hinged rod, a connecting column, a sliding frame and two strip grooves, the two strip grooves are both opened on the surface of the L-shaped frame, the sliding frame is slidably arranged inside the two strip grooves, the cleaning brush is fixed to one side surface of the sliding frame, the connecting column is fixed to the side surface of the sliding frame away from the cleaning brush, the support plate is fixed to the bottom end of the L-shaped frame, the turntable is rotatably arranged on one side of the support plate, one end of the hinged rod is hinged to the end of the connecting column, and the other end of the hinged rod is hinged to the surface of the turntable.

[0009] As a further solution of the present invention: the rotating assembly includes a first gear, a second gear and a rack, the first gear is located on one side of the turntable and is fixedly connected to the turntable, the second gear is rotatably set on one side of the support plate, and the rack is fixed on one side of the third electric slide, and the first gear, the second gear and the rack are meshed and connected in sequence.

[0010] As a further solution of the present invention: a plurality of connecting plates are fixed to one side of the third electric slide, and the rack is installed on a side of the plurality of connecting plates away from the third electric slide.

[0011] As a further solution of the present invention: the conveying assembly includes a push plate, an air outlet pipe, an air inlet pipe, a push plate and a push rod, the tank body is fixed to one side of the L-shaped frame, the push plate is slidably arranged inside the tank body, the push rod is inserted into one end of the tank body, one end of the push rod is fixedly connected to the push plate, the air outlet pipe is fixed to the end of the tank body away from the push rod, the other end of the air outlet pipe is connected to the water pipe, the air inlet pipe is installed on the surface of one end of the tank body close to the air outlet pipe, and a through hole is opened at the end of the tank body away from the air outlet pipe.

[0012] As a further solution of the present invention: the transmission assembly includes a connecting rod, two guide rods and two support plates, one end of the connecting rod is connected to the push rod, and the other end of the connecting rod is connected to the connecting column. The two support plates are fixed to one side of the L-shaped frame, each guide rod is slidably set on a support plate, and one end of each guide rod is fixedly connected to the connecting rod.

[0013] As a further solution of the present invention: an ink supply tube is provided on one side of the L-shaped frame, one end of the ink supply tube is connected to the print head, and the other end of the ink supply tube is connected to a hose. A plurality of pipe clamps for fixing the ink supply tube are fixed on the surface of the L-shaped frame.

[0014] As a further solution of the present invention: a side plate is installed on one side of the printing head, and a position sensor is fixed on the side plate.

[0015] As a further solution of the present invention: a plurality of locking wheels are equidistantly mounted on the bottom end of the base plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. A wall decoration printing device of the present invention is provided with a cleaning mechanism. When the print head moves from top to bottom to print on the wall, the cleaning brush can always clean the area below the print head to be printed, and can remove dust or putty powder attached to the wall surface, ensuring that the wall surface of the area to be printed is smooth, thereby improving the printing effect.

[0017] 2. A wall decoration printing device of the present invention, through the provided rotating assembly and telescopic assembly, can drive the rotating assembly to work when the L-shaped frame moves from top to bottom, thereby driving the cleaning brush to move horizontally back and forth through the telescopic assembly to achieve cleaning of the wall surface. That is, while the L-shaped frame drives the printing head and the cleaning brush to move from top to bottom, the cleaning brush can also move horizontally back and forth, thereby improving the cleaning effect and having high synchronization.

[0018] 3. A wall decoration printing device of the present invention has multiple nozzles arranged above the printing head. When the sliding frame moves, the nozzles can continuously blow air to the wall that has just been printed, so that the paint on the wall can be quickly dried, which can effectively prevent the uncured paint from sagging. At the same time, it can also prevent the wet paint from being exposed to the air for a long time, which is easy to absorb pollutants such as dust and hair.

[0019] 4. A wall decoration printing device of the present invention has a transmission assembly. When the cleaning brush moves back and forth, the transmission assembly can drive the conveying assembly to work, so that gas can be ejected through a plurality of nozzles. That is, while the cleaning brush is cleaning the wall to be printed, the nozzle can spray gas onto the wall where printing is completed, with high synchronization.

[0020] 5. In a wall decoration printing device of the present invention, a drying mechanism and a cleaning mechanism are respectively arranged above and below the print head. While the print head moves to print on the wall, the wall can be cleaned and the printing position can be dried simultaneously. That is, cleaning, printing and drying can be completed simultaneously in one operation, without the need for additional tools for cleaning and drying, saving time and effort.

[0021] 6. A wall decoration printing device of the present invention can detect the distance between the print head and the wall through a position sensor. When the distance between the print head and the wall is too large or too small, the controller can control the two first electric slides to operate, thereby adjusting the position of the print head so that the distance between the print head and the wall can always remain consistent, thereby making the depth of the printed product consistent, improving the printing effect, and being suitable for use in situations where the wall surface is uneven, and having a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The structure of the present invention is schematically shown Figure 1 .

[0023] Figure 2 For the present invention Figure 1 Schematic diagram of the enlarged structure of part A.

[0024] Figure 3 The structure of the present invention is schematically shown Figure 2 .

[0025] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure of part B.

[0026] Figure 5 It is a side view of the present invention.

[0027] Figure 6 It is a front view of the present invention.

[0028] Figure 7 Schematic diagram of the structure of the third electric slide in the present invention.

[0029] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure of part C.

[0030] Figure 9 It is a structural schematic diagram of the L-shaped frame in the present invention.

[0031] Figure 10 For the present invention Figure 9 Schematic diagram of the enlarged structure of part D.

[0032] Figure 11 It is a schematic diagram of the cross-sectional structure of the tank body in the present invention.

[0033] Among them: 11. Base plate; 12. Locking wheel; 13. First electric slide; 14. First mounting plate; 15. Second electric slide; 16. Second mounting plate; 17. Third electric slide; 18. Third mounting plate; 19. L-shaped frame; 20. Print head; 21. Ink supply tube; 22. Hose; 23. Pipe clamp; 24. Side plate; 25. Position sensor; 26. Cleaning brush; 27. Strip groove; 28. Sliding frame; 29. Connecting column; 30. Articulated rod; 31. Turntable; 33. First gear; 34. Second gear; 35. Rack; 36. Connecting rod; 37. Push rod; 38. Push plate; 39. Tank body; 40. Exhaust pipe; 41. Inlet pipe; 42. Water pipe; 43. Injector head; 44. Through hole; 45. Guide rod; 46. Support plate; 47. Connecting plate. DETAILED DESCRIPTION

[0034] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0035] The present invention provides the following preferred embodiments: Example 1, as Figures 1-11 As shown, a wall decoration printing device includes a base plate 11, an L-shaped frame 19, a printing head 20, a moving mechanism, a cleaning mechanism and an air drying mechanism; The mobile mechanism is fixedly mounted on the top of the base plate 11, the L-shaped frame 19 is mounted on one side of the mobile mechanism, the print head 20 is fixedly mounted on the surface of the L-shaped frame 19, and the air drying mechanism and the cleaning mechanism are respectively arranged above and below the print head 20; The cleaning mechanism includes a cleaning brush 26, a rotating assembly and a telescopic assembly. The cleaning brush 26 is located below the print head 20 and is slidably arranged on one side of the L-shaped frame 19. The telescopic assembly is located on one side of the cleaning brush 26, and the rotating assembly is located between the telescopic assembly and the moving mechanism. By providing a cleaning mechanism, when the print head 20 moves from top to bottom to print on the wall, the cleaning brush 26 can always clean the area below the print head 20 to be printed, and can remove dust or putty powder attached to the wall surface, ensuring that the wall surface of the area to be printed is smooth, thereby improving the printing effect; The air-drying mechanism includes a water pipe 42, a conveying assembly, a transmission assembly, and a plurality of nozzles 43. The water pipe 42 is located above the printing head 20 and fixed to the surface of the L-shaped frame 19. The nozzles 43 are evenly spaced and installed on the surface of the water pipe 42. The conveying assembly is located on the side of the L-shaped frame 19 away from the water pipe 42. The transmission assembly is located between the conveying assembly and the telescopic assembly. When the cleaning brush 26 moves back and forth, the transmission assembly can drive the conveying assembly to work, so that the gas can be ejected through the plurality of nozzles 43. That is, while the cleaning brush 26 is cleaning the wall to be printed, the nozzles 43 can spray the gas onto the wall where the printing is completed, with high synchronization. It should be noted that when using this device, you need to use a computer to design graphics first and generate high-precision digital files. After the design is completed, move the device to a suitable position and fix it to ensure stable printing. Then use the controller to control the device to print the pre-designed pattern on the wall to achieve wall decoration printing. Computer: responsible for pattern design, editing, storage and printing instruction generation; This printing device: receives computer instructions and converts digital information into physical print (the controller in this printing device is equipped with a digital information conversion module).

[0036] like Figures 1-11 As shown, the moving mechanism includes a second electric slide 15, a second mounting plate 16, a third electric slide 17, a third mounting plate 18, two first electric slides 13 and two first mounting plates 14, the two first electric slides 13 are symmetrically fixed to the top of the base plate 11, and each first mounting plate 14 is mounted above a first electric slide 13. Specifically, the first mounting plate 14 is fixed to the top of the slider on the first electric slide 13, the second electric slide 15 is fixed to the top of the two first mounting plates 14, the second mounting plate 16 is mounted above the second electric slide 15, the second mounting plate 16 is fixed to the top of the slider on the second electric slide 15, the third electric slide 17 is fixed to the top of the second mounting plate 16, the third mounting plate 18 is mounted on one side of the third electric slide 17, the third mounting plate 18 is fixed to one side of the slider on the third electric slide 17, and the L-shaped frame 19 is fixed to the side of the third mounting plate 18 away from the third electric slide 17; Specifically, the electric slide is composed of components such as a linear guide rail, a slider, a drive device and a control system. The drive device can drive the slider to move on the guide rail, thereby realizing linear motion, and the mounting plates are respectively installed on the sliders of the electric slide. Therefore, when the electric slide is working, it can drive the mounting plates to move synchronously. The electric slide is an existing technology and will not be elaborated here.

[0037] like Figures 1-11As shown, the telescopic assembly includes a support plate 46, a turntable 31, a hinged rod 30, a connecting column 29, a sliding frame 28 and two strip grooves 27, both of which are opened on the surface of the L-shaped frame 19, and the sliding frame 28 is slidably arranged inside the two strip grooves 27. The cleaning brush 26 is fixed to one side surface of the sliding frame 28, and the connecting column 29 is fixed to the side surface of the sliding frame 28 away from the cleaning brush 26. The support plate 46 is fixed to the bottom end of the L-shaped frame 19, and the turntable 31 is rotatably arranged on one side of the support plate 46. One end of the hinged rod 30 is hinged to the end of the connecting column 29, and the other end of the hinged rod 30 is hinged to the surface of the turntable 31. When the turntable 31 rotates, the hinge rod 30 can drive the connecting column 29 and the sliding frame 28 to move back and forth along the length direction of the strip groove 27, thereby driving the cleaning brush 26 to move back and forth along the length direction of the strip groove 27 to clean the wall.

[0038] like Figures 1-11 As shown, the rotating assembly includes a first gear 33, a second gear 34 and a rack 35. The first gear 33 is located on one side of the turntable 31 and is fixedly connected to the turntable 31. The second gear 34 is rotatably arranged on one side of the support plate 46. The rack 35 is fixed to one side of the third electric slide 17. The first gear 33, the second gear 34 and the rack 35 are meshed and connected in sequence. When the L-shaped frame 19 drives the print head 20 to move from top to bottom, the L-shaped frame 19 can drive the first gear 33 and the second gear 34 to move through the support plate 46. Since the second gear 34 and the rack 35 are engaged with each other, when the L-shaped frame 19 moves, it can drive the second gear 34 to rotate. The second gear 34 drives the turntable 31 to rotate through the first gear 33, thereby making the cleaning brush 26 move back and forth to clean the wall. That is, while the L-shaped frame 19 drives the print head 20 and the cleaning brush 26 to move from top to bottom, the cleaning brush 26 can move back and forth horizontally, thereby improving the cleaning effect and having high synchronization.

[0039] like Figures 1-11 As shown, a plurality of connecting plates 47 are fixed to one side of the third electric slide 17 , and the rack 35 is installed on the side of the plurality of connecting plates 47 away from the third electric slide 17 . The connecting plates 47 are used to support and install the rack 35 .

[0040] like Figures 1-11As shown, the conveying assembly includes a push plate 38, an air outlet pipe 40, an air inlet pipe 41, a push plate 38 and a push rod 37. The tank body 39 is fixed to one side of the L-shaped frame 19, the push plate 38 is slidably arranged inside the tank body 39, the push rod 37 is inserted into one end of the tank body 39, and one end of the push rod 37 is fixedly connected to the push plate 38. The air outlet pipe 40 is fixed to the end of the tank body 39 away from the push rod 37, and the other end of the air outlet pipe 40 is connected to the water pipe 42. The air inlet pipe 41 is installed on the surface of one end of the tank body 39 close to the air outlet pipe 40. A through hole 44 is opened at the end of the tank body 39 away from the air outlet pipe 40. When the transmission assembly is working, it can drive the push rod 37 to slide at the end of the tank body 39. When the push rod 37 moves, it can drive the push plate 38 to slide inside the tank body 39. When the push rod 37 moves in a direction away from the air outlet pipe 40, under the action of negative pressure, external gas can enter the interior of the tank body 39. When the push rod 37 moves in a direction close to the air outlet pipe 40, the gas inside the tank body 39 can be squeezed out, so that the gas can be sprayed out through the multiple nozzles 43, thereby drying the paint on the wall surface, so that the paint on the wall surface can be dried quickly, which can effectively prevent the uncured paint from sagging. Preferably, a filter is installed at the end of the air inlet pipe 41.

[0041] like Figures 1-11 As shown, the transmission assembly includes a connecting rod 36, two guide rods 45 and two support plates 46. One end of the connecting rod 36 is connected to the push rod 37, and the other end of the connecting rod 36 is connected to the connecting column 29. The two support plates 46 are fixed to one side of the L-shaped frame 19. Each guide rod 45 is slidably set on a support plate 46. One end of each guide rod 45 is fixedly connected to the connecting rod 36. The sliding connection between the guide rod 45 and the support plate 46 can achieve the guidance of the connecting rod 36. When the connecting column 29 moves under the action of the hinged rod 30, the connecting rod 36 can drive the push rod 37 to move synchronously to achieve subsequent air drying. That is, while the cleaning brush 26 is cleaning the printed wall, the nozzle 43 can spray gas onto the wall where the printing is completed, with high synchronization.

[0042] like Figures 1-11 As shown, an ink supply tube 21 is provided on one side of the L-shaped frame 19, one end of the ink supply tube 21 is connected to the print head 20, and the other end of the ink supply tube 21 is connected to a hose 22. A plurality of pipe clamps 23 for fixing the ink supply tube 21 are fixed on the surface of the L-shaped frame 19. Specifically, the other end of the hose 22 is connected to the ink supply system, which is located on one side of the third electric slide 17 and fixed to the top of the second mounting plate 16. The ink supply system is responsible for transporting ink to the print head 20, and the print head 20 is responsible for spraying ink onto the wall.

[0043] like Figures 1-11As shown, a side panel 24 is installed on one side of the print head 20, and a position sensor 25 is fixed on the side panel 24. The position sensor 25 is electrically connected to the controller. The position sensor 25 can detect the distance between the print head 20 and the wall and transmit the signal to the controller. When the distance between the print head 20 and the wall is too large or too small, the controller can control the two first electric slides 13 to work, thereby adjusting the position of the print head 20, so that the distance between the print head 20 and the wall can always be kept consistent, so that the depth of the printed product is consistent, thereby improving the printing effect. It is suitable for use in situations where the wall surface is uneven and has a wide range of applications.

[0044] like Figures 1-11 As shown, a plurality of locking wheels 12 are equidistantly installed at the bottom end of the base plate 11. The arrangement of the locking wheels 12 makes it easy to move the device to a suitable position, so as to facilitate printing on walls at different positions.

[0045] The specific working process of the present invention is as follows: The bottom plate 11 is moved to one side of the wall by the locking wheel 12. The lateral position of the print head 20 can be adjusted by the second electric slide 15, and the vertical position of the print head 20 can be adjusted by the third electric slide 17. The distance between the print head 20 and the wall can be detected by the position sensor 25, and the signal is transmitted to the controller. When the distance between the print head 20 and the wall is too large or too small, the controller can control the two first electric slides 13 to operate, thereby adjusting the position of the print head 20 so that the distance between the print head 20 and the wall can always be maintained. During printing, the third electric slide 17 drives the third mounting plate 18 to move, and the third mounting plate 18 drives the print head 20 to move from top to bottom through the L-shaped frame 19. The ink supply system is responsible for delivering ink to the print head 20, and the print head 20 is responsible for spraying ink onto the wall to achieve printing on the wall; At the same time, when the L-shaped frame 19 drives the print head 20 to move from top to bottom, the L-shaped frame 19 can drive the first gear 33 and the second gear 34 to move through the support plate 46. Since the second gear 34 and the rack 35 are engaged with each other, when the L-shaped frame 19 moves, it can drive the second gear 34 to rotate. The second gear 34 drives the turntable 31 to rotate through the first gear 33. When the turntable 31 rotates, the hinge rod 30 can drive the connecting column 29 and the sliding frame 28 to reciprocate along the length direction of the strip groove 27, thereby driving the cleaning brush 26 to reciprocate along the length direction of the strip groove 27 to clean the wall surface. At the same time, when the connecting column 29 moves under the action of the hinge rod 30, the connecting rod 36 can drive the push rod 37 to move synchronously. When the push rod 37 moves, it can drive the push plate 38 to slide inside the tank body 39. When the push rod 37 moves in the direction away from the air outlet pipe 40, under the action of negative pressure, the external gas can enter the interior of the tank body 39. When the push rod 37 moves in the direction close to the air outlet pipe 40, the gas inside the tank body 39 can be squeezed out, so that the gas can be sprayed out through the multiple nozzles 43, thereby drying the paint on the wall surface, so that the paint on the wall surface can be dried quickly, which can effectively prevent the uncured paint from sagging. That is, while the print head 20 moves to print on the wall, it can simultaneously complete the cleaning of the wall and the air drying at the printing position. That is, cleaning, printing and air drying can be completed simultaneously in one operation, without the need for additional tools for cleaning and air drying, saving time and effort.

[0046] The beneficial effects of the present invention are specifically embodied in that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wall decoration printing device, comprising a base plate (11), characterized in that: It also includes an L-shaped frame (19), a printing head (20), a moving mechanism, a cleaning mechanism and an air drying mechanism; The moving mechanism is fixedly mounted on the top of the bottom plate (11), the L-shaped frame (19) is mounted on one side of the moving mechanism, the printing head (20) is fixedly mounted on the surface of the L-shaped frame (19), and the air drying mechanism and the cleaning mechanism are respectively arranged above and below the printing head (20); The cleaning mechanism includes a cleaning brush (26), a rotating assembly and a telescopic assembly, wherein the cleaning brush (26) is located below the printing head (20) and is slidably arranged on one side of the L-shaped frame (19), the telescopic assembly is located on one side of the cleaning brush (26), and the rotating assembly is located between the telescopic assembly and the moving mechanism; The air-drying mechanism includes a water pipe (42), a conveying assembly, a transmission assembly, and a plurality of nozzles (43). The water pipe (42) is located above the printing head (20) and is fixed to the surface of the L-shaped frame (19). The plurality of nozzles (43) are equidistantly installed on the surface of the water pipe (42). The conveying assembly is located on a side of the L-shaped frame (19) away from the water pipe (42). The transmission assembly is located between the conveying assembly and the telescopic assembly.

2. A wall decoration printing device according to claim 1, characterized in that: The moving mechanism includes a second electric slide (15), a second mounting plate (16), a third electric slide (17), a third mounting plate (18), two first electric slides (13) and two first mounting plates (14), wherein the two first electric slides (13) are symmetrically fixed to the top of the base plate (11), each first mounting plate (14) is mounted above a first electric slide (13), the second electric slide (15) is fixed to the top of the two first mounting plates (14), the second mounting plate (16) is mounted above the second electric slide (15), the third electric slide (17) is fixed to the top of the second mounting plate (16), the third mounting plate (18) is mounted on one side of the third electric slide (17), and the L-shaped frame (19) is fixed to the side of the third mounting plate (18) away from the third electric slide (17).

3. A wall decoration printing device according to claim 2, characterized in that: The telescopic assembly includes a support plate (46), a turntable (31), a hinged rod (30), a connecting column (29), a sliding frame (28) and two strip grooves (27), the two strip grooves (27) are both opened on the surface of the L-shaped frame (19), the sliding frame (28) is slidably arranged inside the two strip grooves (27), the cleaning brush (26) is fixed to a side surface of the sliding frame (28), the connecting column (29) is fixed to a side surface of the sliding frame (28) away from the cleaning brush (26), the support plate (46) is fixed to the bottom end of the L-shaped frame (19), the turntable (31) is rotatably arranged on one side of the support plate (46), one end of the hinged rod (30) is hinged to the end of the connecting column (29), and the other end of the hinged rod (30) is hinged to the surface of the turntable (31).

4. A wall decoration printing device according to claim 3, characterized in that: The rotating assembly includes a first gear (33), a second gear (34) and a rack (35), wherein the first gear (33) is located on one side of the turntable (31) and is fixedly connected to the turntable (31), the second gear (34) is rotatably arranged on one side of the support plate (46), and the rack (35) is fixed to one side of the third electric slide (17), and the first gear (33), the second gear (34) and the rack (35) are meshed and connected in sequence.

5. A wall decoration printing device according to claim 4, characterized in that: A plurality of connecting plates (47) are fixed to one side of the third electric slide (17), and the rack (35) is installed on a side of the plurality of connecting plates (47) away from the third electric slide (17).

6. A wall decoration printing device according to claim 5, characterized in that: The conveying assembly includes a push plate (38), an air outlet pipe (40), an air inlet pipe (41), a push plate (38) and a push rod (37). The tank body (39) is fixed to one side of the L-shaped frame (19). The push plate (38) is slidably arranged inside the tank body (39). The push rod (37) is plugged into one end of the tank body (39). One end of the push rod (37) is fixedly connected to the push plate (38). The air outlet pipe (40) is fixed to one end of the tank body (39) away from the push rod (37). The other end of the air outlet pipe (40) is connected to the water pipe (42). The air inlet pipe (41) is installed on the surface of one end of the tank body (39) close to the air outlet pipe (40). A through hole (44) is opened at one end of the tank body (39) away from the air outlet pipe (40).

7. A wall decoration printing device according to claim 6, characterized in that: The transmission assembly includes a connecting rod (36), two guide rods (45) and two support plates (46), one end of the connecting rod (36) is connected to the push rod (37), the other end of the connecting rod (36) is connected to the connecting column (29), the two support plates (46) are fixed to one side of the L-shaped frame (19), each guide rod (45) is slidably arranged on a support plate (46), and one end of each guide rod (45) is fixedly connected to the connecting rod (36).

8. A wall decoration printing device according to claim 7, characterized in that: An ink supply tube (21) is provided on one side of the L-shaped frame (19), one end of the ink supply tube (21) is connected to the printing head (20), and the other end of the ink supply tube (21) is connected to a hose (22). A plurality of tube clamps (23) for fixing the ink supply tube (21) are fixed on the surface of the L-shaped frame (19).

9. A wall decoration printing device according to claim 8, characterized in that: A side plate (24) is installed on one side of the printing head (20), and a position sensor (25) is fixed on the side plate (24).

10. A wall decoration printing device according to claim 9, characterized in that: A plurality of locking wheels (12) are equidistantly mounted on the bottom end of the base plate (11).

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