Spray painting equipment for outdoor advertising cloth

Abstract

The invention relates to the technical field of advertising cloth spray painting equipment, and discloses outdoor advertising cloth spray painting equipment which comprises an operation table and further comprises two bases fixedly connected to the two sides of the bottom of the operation table; the case is mounted above the operation table; the painting head is mounted above the operation table through a moving mechanism and is used for painting advertisement patterns; the advertising cloth storage mechanism is arranged between the two bases and used for storing and rolling advertising cloth; the dryer is installed in an installation hole formed in the front face of the operation table and used for drying the advertisement cloth subjected to painting; and the cleaning mechanism is arranged on the operation table and is used for cleaning the inkjet head. Through the arranged cleaning assembly, in the moving process of the inkjet head, a round push rod makes contact with a spherical groove, and under the action of a fourth spring, a cleaning seat is pushed to move, so that bristles on a cleaning block are driven to move, cleaning of the outer wall of the inkjet head is achieved, and the cleaning effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of advertising cloth spraying equipment, in particular to a spraying equipment for outdoor advertising cloth. Background Art

[0002] Inkjet printing technology plays an important role in the field of advertising production, especially in the production of large-format advertising cloth, such as inkjet printing advertising cloth for outdoor advertising.

[0003] As disclosed in announcement number CN 218171799 U, an advertising inkjet printer with a drying function is disclosed. This solution includes an inkjet printer body, grooves are provided on both sides of the inkjet printer body, electric guide rails are fixedly connected inside the grooves on both sides, a movable frame is fixedly connected to the surface of the electric guide rail, an inkjet head is provided at the bottom of the movable frame, an ink storage box is provided on the top of the inkjet head, a drying mechanism is provided on the top of the inkjet printer body, and the drying mechanism includes a drying box, a fixed frame is fixedly connected to one side of the inkjet printer body, a motor is fixedly connected to the rear surface of the fixed frame, a rotating shaft is movably connected to the surface of the fixed frame, and a reel is provided on the outside of the rotating shaft. By designing the drying mechanism, when the advertising cloth is sprayed, the advertising cloth after spraying can be dried and rolled up, making it more convenient to place and store the advertising cloth, reducing the workload of workers to a certain extent, and improving the efficiency of advertising cloth spraying and printing.

[0004] When the above-mentioned advertising inkjet printer is printing on advertising cloth, it is easy to cause blockage at the end of the inkjet head, resulting in damage to the nozzle during subsequent use, which seriously affects the production and processing efficiency of the inkjet printing. During the printing process, the traditional nozzle needs to be manually cleaned at a later stage, which consumes manpower and material resources and leads to a decrease in cleaning efficiency. In addition, if the ink viscosity is too low and the ink is too thin, the inkjet speed will be fast. The ink sprayed on the cloth will be reflected back to the nozzle, causing the ink to accumulate on the nozzle, resulting in nozzle blockage. Therefore, a printing device for outdoor advertising cloth is proposed to solve the above-mentioned problems. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a spray painting device for outdoor advertising cloth in view of the deficiencies in the above-mentioned prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: an outdoor advertising cloth printing device, including an operating table, and also including: Two bases are fixedly connected to two sides of the bottom of the operating table; A chassis, installed above the operating table; A printing head is installed above the operating table through a moving mechanism and is used for printing advertising patterns; The advertising cloth storage mechanism is arranged between the two bases and is used for storing and rolling up the advertising cloth; A dryer is installed in the installation hole provided on the front of the operating table and is used for drying the advertising cloth after printing; A cleaning mechanism, arranged on the operating table, for cleaning the inkjet head; Wherein, the moving mechanism comprises: A fixed seat, fixedly connected to the top of the operating table; Two slide rails, fixedly connected to the front side of the fixing seat; Two sliders slide on two slide rails respectively, and the front side is fixedly connected to the inkjet printing head, and are used to move the inkjet printing head left and right; The reciprocating screw rod has two ends installed in the grooves provided on the fixing seat, and the right side movably penetrates the reciprocating screw rod to drive the reciprocating screw rod to rotate; The movable block is movably connected to the outer wall of the reciprocating screw rod and is fixedly connected to the inkjet head to move the inkjet head.

[0007] Preferably, the cleaning mechanism comprises: The mounting seat is arranged in a rectangular groove opened on the right side of the top of the operating table, and a plurality of cleaning bristles are installed on the top of the mounting seat for cleaning a plurality of nozzles installed at the bottom of the inkjet head.

[0008] Preferably, the cleaning mechanism further comprises: Two slide bars are respectively fixedly connected in the rectangular grooves, and the mounting seat slides on the outer wall of the slide bar by providing a slide groove; A spring three is arranged in the slide groove and connected with the mounting seat and the slide rod to push the mounting seat to move toward the fixed seat; A wave-shaped movable block is fixedly connected to the back of the mounting seat and is used to push the mounting seat to move on the slide rod; A wave-shaped push block is fixedly connected to the bottom of the slider below and fits with the arc-shaped outer wall of the wave-shaped movable block to push the wave-shaped movable block to move; The cleaning component is arranged at the bottom of the inkjet head to assist in cleaning the inkjet head.

[0009] Preferably, the cleaning component comprises: Two mounting rods move in two movable slots respectively provided at the bottom of the inkjet head; A cleaning seat, movably connected to the interior of the inkjet printing head, and having a bottom fixedly connected to the tops of the two mounting rods; The cleaning block is fixedly connected to the bottom of the two mounting rods, and bristles are arranged inside the cleaning block for cleaning the outer wall of the nozzle.

[0010] Preferably, the cleaning blocks are arranged in a staggered manner of three horizontal and two vertical, and are provided with a plurality of circular rings to be sleeved on the outer wall of the nozzle, and the bristles are installed on the inner wall of the circular ring to fit the outer wall of the nozzle to clean the nozzle.

[0011] Preferably, the cleaning component further comprises: A circular push rod is movably connected in the inkjet head and connected to the cleaning seat, and the back side is spherical and contacts the slide rail; Spring four is sleeved on the outer wall of the circular push rod and pulls the cleaning seat to move toward one side of the slide rail; A plurality of spherical grooves are provided on the right side of the slide rail and fit with the spherical part of the circular push rod.

[0012] Preferably, the advertising cloth storage mechanism comprises: Two placement racks are respectively fixedly connected to the back of the base and have placement slots on the tops; The advertising cloth storage cylinder has shafts on both sides placed on the inner wall of the placement groove and is used to store unprinted advertising cloth; Two support frames are respectively installed in the rectangular holes in the middle of the operating table, and two support drums are rotatably connected between the two support frames, and a conveyor belt is wound around the outer walls of the two support drums; A guide cylinder 1 is installed inside the dryer in a mounting hole provided on the operating table and is used to guide the printed advertising cloth for drying; The second guide cylinder and the third guide cylinder are respectively installed between the two support frames and are used to fasten the advertising cloth; A reel is installed on the front of the base and is used to reel in the printed advertising cloth; The advertising cloth is arranged on the outer wall of the advertising cloth storage cylinder, and its outer side respectively passes around the outer walls of the second guide cylinder and the third guide cylinder and is successively attached to the outer wall of the conveyor belt and the first guide cylinder, and then is connected to the winding cylinder; The first advertising cloth support component is arranged on the back of the base and is used for supporting the unprinted advertising cloth from the back; The second advertising cloth supporting component is arranged on the front side of the base and is used for supporting the advertising cloth after printing.

[0013] Preferably, the advertising cloth supporting component 1 comprises: A support tube 1, the shafts on both sides of which are slidably connected to two placement racks, and the outer wall of the support tube 1 is in contact with the advertising cloth; A fixed sleeve 1 is fixedly connected to the inner wall of the base, and a push rod 1 is movably connected to the inner wall of the fixed sleeve 1, and the back side of the push rod 1 movably penetrates the base and fits with the axis of the support tube 1; Spring 1, arranged on the inner wall of the fixing sleeve 1, used for pushing the push rod 1 to move toward the axis of the supporting cylinder 1; The second advertising cloth supporting component comprises: The second support tube is installed on the front side of the base through two U-shaped fixing rods, and the two side shafts of the second support tube slide on the inner wall of the U-shaped fixing rod, and the outer wall of the second support tube is in contact with the printed advertising cloth; The second fixed sleeve is fixedly connected to the base, and the movable rod on the inner wall thereof is connected to the second push rod, the front side of the second push rod penetrates the base and fits with the axis of the second support tube; Spring 2 is arranged on the outer wall of the fixing sleeve 2 and is used for pushing the push rod 2 to move toward the axis of the supporting cylinder 2.

[0014] The present invention adopts the above technical solution to bring the following beneficial effects: 1. The inkjet printing equipment for outdoor advertising cloth uses a cleaning component to clean the nozzle after it contacts the nozzle using cleaning hairs arranged on the mounting seat, so as to prevent ink from adhering to the nozzle. Dry ink adheres to the nozzle and affects the nozzle from spraying patterns. Meanwhile, the wavy slider contacts the wavy movable block during movement, and the mounting seat and the cleaning hairs are driven to move back and forth on the slide rod by the continuous pushing and resetting of the spring three, so as to produce a better cleaning effect.

[0015] 2. The inkjet printing equipment for outdoor advertising cloth, through the cleaning component set up, utilizes the process of the inkjet head moving, the circular push rod contacts the spherical groove, and cooperates with the action of spring four to push the cleaning seat to move, thereby driving the bristles on the cleaning block to move, to achieve the cleaning of the outer wall of the nozzle, thereby improving the cleaning effect.

[0016] 3. The inkjet printing equipment for the outdoor advertising cloth can realize the inkjet printing of the advertising pattern after computer typeset by moving the inkjet printing head on the slide rail to the left and right, and can realize the inkjet printing work by realizing stable left and right movement on the two slide rails.

[0017] 4. The inkjet printing equipment for outdoor advertising cloth can install unprinted advertising cloth and printed advertising cloth on the base through the advertising cloth storage mechanism, and realize the function of synchronous winding and unwinding through synchronous drive rotation, thereby improving work efficiency.

[0018] 5. The inkjet printing equipment for outdoor advertising cloth, through the advertising cloth support component 1 and the advertising cloth support component 2, uses the support tube 1 and the support tube 2 to move in two different directions, respectively, and pushes the advertising cloth to be tightened, so as to effectively prevent the advertising cloth from wrinkles and improve the printing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2It is a schematic diagram of the internal structure of the chassis of the present invention; Figure 3 It is a schematic diagram of the structure of the mobile mechanism of the present invention; Figure 4 This is a schematic diagram of the explosion structure of the operating table of the present invention; Figure 5 This is an exploded rear cross-sectional view of the operating table of the present invention; Figure 6 For the present invention Figure 5 The enlarged structural diagram at A in the middle; Figure 7 For the present invention Figure 5 The enlarged structural diagram at B in the middle; Figure 8 It is a schematic diagram of the structure of the inkjet printing head of the present invention; Fig. 9 It is a schematic diagram of the exploded cross-section structure of the inkjet printing head of the present invention.

[0020] In the figure: 1. operating table; 2. base; 3. chassis; 4. inkjet head; 41. nozzle; 5. moving mechanism; 51. fixed seat; 52. slide rail; 53. slider; 54. reciprocating screw rod; 55. movable block; 6. advertising cloth storage mechanism; 61. placement rack; 62. advertising cloth storage cylinder; 63. advertising cloth; 64. support frame; 65. support rotating cylinder; 66. guide cylinder 1; 661. guide cylinder 2; 662. guide cylinder 3; 67. advertising cloth support component 1; 671. support cylinder 1; 672. push rod 1; 673. fixed sleeve 1; 674. Spring one; 68, advertising cloth support component two; 681, support tube two; 682, U-shaped fixing rod; 683, push rod two; 684, fixing sleeve two; 685, spring two; 69, winding drum; 7, dryer; 8, cleaning mechanism; 81, mounting seat; 82, cleaning bristles; 83, sliding rod; 84, spring three; 85, wave-shaped movable block; 86, wave-shaped push block; 87, cleaning component; 871, mounting rod; 872, cleaning block; 873, bristles; 874, cleaning seat; 875, round push rod; 876, spring four; 877, spherical groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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.

[0022] See also Figure 1-9 One embodiment of the present invention is: a printing device for outdoor advertising cloth, including an operating table 1, and also including: Two bases 2 are fixedly connected to two sides of the bottom of the operating table 1; A chassis 3 is installed above the operating table 1; The inkjet head 4 is installed above the operating table 1 through a moving mechanism 5 and is used for inkjet printing of advertising patterns; The advertising cloth storage mechanism 6 is arranged between the two bases 2 and is used for storing and rolling up the advertising cloth; The dryer 7 is installed in the installation hole provided on the front of the operating table 1 and is used for drying the advertising cloth after printing; A cleaning mechanism 8 is provided on the operating table 1 and is used for cleaning the inkjet head 4; Wherein, the moving mechanism 5 comprises: A fixing seat 51, fixedly connected to the top of the operating table 1; Two slide rails 52 are fixedly connected to the front side of the fixing base 51; Two sliders 53 slide on the two slide rails 52 respectively, and the front side is fixedly connected to the inkjet head 4, and is used to move the inkjet head 4 left and right; The reciprocating screw rod 54 has two ends mounted in grooves provided on the fixed seat 51, and the right side movably penetrates the reciprocating screw rod 54 to drive the reciprocating screw rod 54 to rotate; The movable block 55 is movably connected to the outer wall of the reciprocating screw rod 54 and fixedly connected to the inkjet head 4 to move the inkjet head 4 .

[0023] Working principle: When printing on advertising cloth, first place the advertising cloth of the size to be printed on the placement rack 62, and move the advertising cloth 63. At this time, you only need to start the motor installed on the base 2 to directly drive the winding drum 69 connected to its output end to rotate, and then drive the reciprocating screw rod 54 to rotate through the pulley group. At this time, after driving the reciprocating screw rod 54 to rotate, the movable block 55 is pushed to move, and then the printing head 4 can be driven to move left and right on the slide rail 52, so that the printing of the advertising pattern after computer typeset can be realized through the nozzle 41, and at the same time, stable left and right movement can be achieved on the two slide rails 52 to realize the printing work.

[0024] See also Figure 1-9 Based on the above embodiment, in another embodiment of the present invention, the cleaning mechanism 8 includes: The mounting seat 81 is arranged in a rectangular groove opened on the right side of the top of the operating table 1 , and a plurality of cleaning bristles 82 are installed on the top thereof for cleaning a plurality of nozzles 41 installed at the bottom of the inkjet head 4 .

[0025] The cleaning mechanism 8 also includes: Two slide bars 83 are respectively fixedly connected in the rectangular grooves, and the mounting seat 81 slides on the outer wall of the slide bar 83 through the slide grooves; A spring 3 84 is disposed in the slide groove and connected to the mounting seat 81 and the slide rod 83 to push the mounting seat 81 to move toward the fixed seat 51; The wave-shaped movable block 85 is fixedly connected to the back of the mounting seat 81 and is used to push the mounting seat 81 to move on the slide bar 83; The wave-shaped push block 86 is fixedly connected to the bottom of the lower slider 53 and fits with the arc-shaped outer wall of the wave-shaped movable block 85 to push the wave-shaped movable block 85 to move; The cleaning component 87 is disposed at the bottom of the inkjet head 4 to assist in cleaning the inkjet head 4 .

[0026] The cleaning component 87 includes: Two mounting rods 871 move in two movable grooves respectively provided at the bottom of the inkjet head 4; The cleaning seat 874 is movably connected to the inside of the inkjet head 4, and the bottom is fixedly connected to the top of the two mounting rods 871; The cleaning block 872 is fixedly connected to the bottom of the two mounting rods 871 , and bristles 873 are arranged inside the cleaning block 872 for cleaning the outer wall of the nozzle 41 .

[0027] The cleaning blocks 872 are arranged in a staggered manner of three horizontal and two vertical, and are provided with multiple rings to be sleeved on the outer wall of the nozzle 41, and the bristles 873 are installed on the inner wall of the ring to fit the outer wall of the nozzle 41 to clean the nozzle 41.

[0028] The cleaning component 87 also includes: The circular push rod 875 is movably connected in the inkjet head 4, connected to the cleaning seat 874, and has a spherical back surface, which contacts the slide rail 52; The spring 4 876 is sleeved on the outer wall of the circular push rod 875 and pulls the cleaning seat 874 to move toward the side of the slide rail 52; A plurality of spherical grooves 877 are provided on the right side of the slide rail 52 and fit with the spherical portion of the circular push rod 875 .

[0029] Working principle: When the printing work is in progress, the printing head 4 moves to both sides. When it moves to the right side, according to the computer setting, after the nozzle 41 leaves the printing range of the advertising cloth, the nozzle installed on it contacts the cleaning hair 82 set on the right side, and moves and contacts, so as to clean the bottom of the nozzle 41, so as to prevent the ink from adhering to the nozzle 41. The dry ink adheres to the nozzle, which affects the nozzle 41 to spray the pattern; At the same time, during the overshoot of the movement, the wavy slider 86 is in contact with the wavy movable block 85, so that the two upper different waves contact each other, and under the reset action of the spring 3 84, a continuous pushing and reset effect is produced, so that the mounting seat 81 on the slide bar 83 moves forward and backward, thereby driving the cleaning hair 82 to move, producing a better cleaning effect; Furthermore, when the entire inkjet head 4 moves to both sides, the circular push rod 875 arranged inside the inkjet head 4 contacts the spherical groove 877, and then fits into the spherical groove 877 under the pull of the spring four 876. At the same time, during the movement, it will break away from the spherical groove and contact the surface of the slide rail 52, thereby driving the cleaning seat 874 to move through the circular push rod 875, and then driving the cleaning block 872 to move through the mounting rod 871, so as to clean the outer wall of the inkjet head 41 through the bristles 873 installed thereon, thereby improving the cleaning effect.

[0030] See also Figure 1-9 Based on the above embodiment, in another embodiment of the present invention, the advertising cloth storage mechanism 6 includes: Two placement racks 61 are respectively fixedly connected to the back of the base 2, and the tops of the two placement racks 61 are provided with placement slots; The advertising cloth storage cylinder 62 has shafts on both sides placed on the inner wall of the placement groove, and is used to store unprinted advertising cloth; Two support frames 64 are respectively installed in the rectangular holes in the middle of the operating table 1, and two support drums 65 are rotatably connected between the two support frames 64, and a conveyor belt is wound around the outer walls of the two support drums 65; A guide cylinder 66 is installed inside the dryer 7 in a mounting hole provided on the operating table 1, and is used to guide the printed advertising cloth for drying; The second guide cylinder 661 and the third guide cylinder 662 are respectively installed between the two support frames 64 and are used to fasten the advertising cloth; The reel 69 is installed on the front side of the base 2 and is used to reel in the printed advertising cloth; The advertising cloth 63 is arranged on the outer wall of the advertising cloth storage cylinder 62, and its outer side respectively passes around the outer walls of the second guide cylinder 661 and the third guide cylinder 662 and is successively attached to the outer wall of the conveyor belt and the first guide cylinder 66, and then connected to the winding cylinder 69; The advertising cloth support component 1 67 is arranged on the back of the base 2 and is used to support the unprinted advertising cloth from the back; The second advertising cloth supporting assembly 68 is arranged on the front side of the base 2 and is used to support the advertising cloth after printing.

[0031] Advertising cloth support component 1 67 includes: The shafts on both sides of the support tube 671 are slidably connected to the two placement racks 61, and the outer wall of the support tube 671 is in contact with the advertising cloth 63; A fixed sleeve 673 is fixedly connected to the inner wall of the base 2, and a push rod 672 is movably connected to the inner wall thereof. The back side of the push rod 672 movably penetrates the base 2 and fits with the axis of the support tube 671; A spring 674 is provided on the inner wall of a fixing sleeve 673 and is used to push a push rod 672 to move toward the axis of a supporting cylinder 671; The advertising cloth supporting component 2 68 comprises: The second support tube 681 is installed on the front of the base 2 through two U-shaped fixing rods 682, and the two side shafts of the second support tube 681 slide on the inner wall of the U-shaped fixing rod 682, and the outer wall of the second support tube 681 is in contact with the printed advertising cloth 63; The second fixed sleeve 684 is fixedly connected to the base 2, and the movable rod on the inner wall thereof is connected to the second push rod 683, the front side of the second push rod 683 passes through the base 2 and fits with the axis of the second support tube 681; The second spring 685 is arranged on the outer wall of the second fixing sleeve 684 and is used to push the second push rod 683 to move toward the axis of the second supporting cylinder 681.

[0032] Working principle: After the advertising cloth 63 to be printed is placed directly on the placement rack 61, the motor drives the winding drum 69 to rotate, and then pulls the advertising cloth 63 to drive it to be rolled up, and drives the entire advertising cloth 63 to move relative to the position of the printing head 4, so that the printing work of the advertising cloth 63 can be realized alternately, and after being respectively wound around the outer walls of the guide drum 2 661 and the guide drum 3 662, the advertising cloth can be guided and tightened, so as to avoid wrinkles on the advertising cloth to affect its printing effect. At the same time, after the advertising cloth is wound around the conveyor belt and guided by the support drum 66, it is convenient to roll it up. At the same time, the printed advertising cloth 63 can be guided to the dryer 7 for drying, so as to facilitate the rolling of the advertising cloth 63; At the same time, the advertising cloth support assembly 67 is provided, and the spring 674 is used to push the push rod 672 to move toward the axis of the support cylinder 671, thereby pushing the entire support cylinder 671 to move backward, so that the advertising cloth 63 between the support cylinder 671 and the advertising cloth storage cylinder 62 is tightened and supported to improve the supporting effect thereof, and prevent the advertising cloth 63 from wrinkling during printing, thereby affecting the printing effect; At the same time, through the advertising cloth support component 2 68, the spring 2 685 is used to push the push rod 2 683 forward, and then push the support tube 2 681 forward, so that the advertising cloth 63 between the support tube 2 681 and the winding tube 69 is tightened and supported, and the support tube 1 671 is used to push the advertising cloth 63 from both sides synchronously. After the advertising cloth 63 is tightened, wrinkles on the advertising cloth 63 are effectively prevented, thereby improving the printing effect.

[0033] The present invention provides a printing device for outdoor advertising cloth. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A printing device for outdoor advertising cloth, comprising an operating table (1), characterized in that: Also includes: Two bases (2) are fixedly connected to two sides of the bottom of the operating table (1); A chassis (3) installed above the operating table (1); A spray head (4) is installed above the operating table (1) via a moving mechanism (5) and is used for spraying advertising patterns; An advertising cloth storage mechanism (6) is arranged between the two bases (2) and is used for storing and rolling up the advertising cloth; A dryer (7) is installed in a mounting hole provided on the front of the operating table (1) and is used for drying the advertising cloth after printing; A cleaning mechanism (8), arranged on the operating table (1), and used for cleaning the inkjet printing head (4); Wherein, the moving mechanism (5) comprises: A fixed seat (51) fixedly connected to the top of the operating table (1); Two slide rails (52) fixedly connected to the front side of the fixing seat (51); Two sliders (53) slide on the two slide rails (52) respectively, and are fixedly connected to the inkjet printing head (4) at the front side, and are used to move the inkjet printing head (4) left and right; A reciprocating screw rod (54), both ends of which are mounted in grooves provided on the fixing seat (51), and the right side movably penetrates the reciprocating screw rod (54) to drive the reciprocating screw rod (54) to rotate; The movable block (55) is movably connected to the outer wall of the reciprocating screw rod (54) and fixedly connected to the inkjet head (4) to move the inkjet head (4).

2. The inkjet printing device for outdoor advertising cloth according to claim 1, characterized in that: The cleaning mechanism (8) comprises: The mounting seat (81) is arranged in a rectangular groove opened on the right side of the top of the operating table (1), and a plurality of cleaning bristles (82) are installed on the top of the mounting seat for cleaning a plurality of nozzles (41) installed at the bottom of the inkjet head (4).

3. The inkjet printing device for outdoor advertising cloth according to claim 2, characterized in that: The cleaning mechanism (8) further comprises: Two slide bars (83) are respectively fixedly connected in the rectangular grooves, and the mounting seat (81) slides on the outer wall of the slide bar (83) by providing a slide groove; A spring three (84) is disposed in the slide groove and connected to the mounting seat (81) and the slide rod (83) to push the mounting seat (81) to move toward the fixed seat (51); A wave-shaped movable block (85) is fixedly connected to the back of the mounting seat (81) and is used to push the mounting seat (81) to move on the slide bar (83); A wave-shaped push block (86) is fixedly connected to the bottom of the slider (53) below and fits with the arc-shaped outer wall of the wave-shaped movable block (85) to push the wave-shaped movable block (85) to move; A cleaning component (87) is arranged at the bottom of the inkjet head (4) to assist in cleaning the inkjet head (4).

4. The inkjet printing device for outdoor advertising cloth according to claim 3, characterized in that: The cleaning component (87) comprises: Two mounting rods (871) are respectively movable in two movable grooves provided at the bottom of the inkjet head (4); A cleaning seat (874) is movably connected inside the inkjet printing head (4), and the bottom is fixedly connected to the tops of the two mounting rods (871); The cleaning block (872) is fixedly connected to the bottom of the two mounting rods (871), and bristles (873) are arranged inside the cleaning block (872) for cleaning the outer wall of the nozzle (41).

5. The inkjet printing device for outdoor advertising cloth according to claim 4, characterized in that: The cleaning blocks (872) are arranged in a staggered manner with three horizontal and two vertical sections, and are provided with a plurality of circular rings for sleeve-mounting on the outer wall of the nozzle (41), and the bristles (873) are installed on the inner walls of the circular rings to fit the outer wall of the nozzle (41) to clean the nozzle (41).

6. The inkjet printing device for outdoor advertising cloth according to claim 5, characterized in that: The cleaning component (87) further comprises: A circular push rod (875) is movably connected in the inkjet head (4), connected to the cleaning seat (874), and has a spherical back surface that contacts the slide rail (52); A spring four (876) is sleeved on the outer wall of the circular push rod (875) and pulls the cleaning seat (874) to move toward one side of the slide rail (52); A plurality of spherical grooves (877) are provided on the right side of the slide rail (52) and fit in the spherical part of the circular push rod (875).

7. The inkjet printing device for outdoor advertising cloth according to claim 6, characterized in that: The advertising cloth storage mechanism (6) comprises: Two placement racks (61) are respectively fixedly connected to the back side of the base (2) and have placement grooves on the tops; An advertising cloth storage cylinder (62), the shafts on both sides of which are placed on the inner wall of the placement groove, for storing unprinted advertising cloth; Two support frames (64) are respectively installed in the rectangular holes in the middle of the operating table (1), and two support rotating drums (65) are rotatably connected between the two support frames (64), and a conveyor belt is wound around the outer walls of the two support rotating drums (65); A guide cylinder (66) is installed inside the dryer (7) in a mounting hole provided on the operating table (1) and is used to guide the printed advertising cloth for drying; The second guide cylinder (661) and the third guide cylinder (662) are respectively installed between the two support frames (64) and are used to fasten the advertising cloth; A reel (69) is mounted on the front side of the base (2) and is used to reel in the advertising cloth after printing; The advertising cloth (63) is arranged on the outer wall of the advertising cloth storage cylinder (62), and its outer side respectively passes around the outer walls of the second guide cylinder (661) and the third guide cylinder (662) and is successively attached to the outer wall of the conveyor belt and the first guide cylinder (66) and then connected to the winding cylinder (69); Advertising cloth support component 1 (67), arranged on the back of the base (2), and used for supporting the unprinted advertising cloth on the back; Advertising cloth support component 2 (68) is arranged on the front side of the base (2) and is used to support the advertising cloth after printing.

8. The inkjet printing device for outdoor advertising cloth according to claim 7, characterized in that: The advertising cloth supporting component 1 (67) comprises: A support tube 1 (671), the shafts on both sides of which are slidably connected to two placement racks (61), and the outer wall of the support tube 1 (671) is in contact with the advertising cloth (63); A fixed sleeve (673) is fixedly connected to the inner wall of the base (2), and a push rod (672) is movably connected to the inner wall of the fixed sleeve. The back side of the push rod (672) movably passes through the base (2) and fits with the axis of the support tube (671). Spring 1 (674), arranged on the inner wall of the fixing sleeve 1 (673), used for pushing the push rod 1 (672) to move toward the axis of the supporting cylinder 1 (671); The advertising cloth supporting component 2 (68) comprises: The second support tube (681) is installed on the front side of the base (2) via two U-shaped fixing rods (682), and the two side shafts of the second support tube (681) slide on the inner wall of the U-shaped fixing rod (682), and the outer wall of the second support tube (681) is in contact with the printed advertising cloth (63); A second fixed sleeve (684) is fixedly connected to the base (2), and a movable rod on the inner wall thereof is connected to a second push rod (683), the front face of the second push rod (683) passing through the base (2) and being in contact with the axis of the second support tube (681); Spring 2 (685) is arranged on the outer wall of the second fixing sleeve (684) and is used to push the second push rod (683) to move toward the axis of the second supporting cylinder (681).

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