Spraying device for advertising board
By designing a double-sided spraying mechanism and conveying components, the problem of uneven spraying on irregularly shaped billboards was solved, achieving uniform spraying and cleaning of billboards, reducing spraying difficulty and cost, and improving aesthetics and coating stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2026-04-07
AI Technical Summary
Existing spraying equipment is prone to spraying dead corners when spraying irregularly shaped billboards, resulting in uneven spraying. This requires multiple sprayings or manual touch-ups, increasing the difficulty and cost. It may also cause color differences and uneven coating thickness, affecting the aesthetics.
The system employs a double-sided spraying mechanism and conveying components. A servo motor drives the spray nozzle and paint gun to maintain a vertical position. Combined with a worm gear, worm wheel, and synchronous belt, it achieves synchronous conveying and cleaning of the billboard. Ratchets and pawls ensure uniform conveying speed, and torsion springs and counterweight balls maintain the horizontal position of the spray gun, achieving uniform spraying on both sides of the billboard.
It achieves uniform spraying on the surface of billboards, avoids spraying dead corners, reduces spraying difficulty and cost, improves aesthetics, and enhances coating adhesion and durability.
Smart Images
Figure CN224087073U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to an advertising board processing technical field, concretely is a kind of spraying device for advertising board. BACKGROUND
[0002] Advertising board is a kind of identification board for promoting, promote product or service, with eye-catching, easy to understand characteristics, to make the appearance of advertising board more beautiful, more smooth, usually spray on its surface, and the adhesion of coating is stronger, also can enhance the service life of advertising board;At present, for the advertising board of special shape, the existing spraying device may appear dead angle in the spraying process due to the angle and position limitation of spraying gun, which leads to that some parts of the advertising board of special shape cannot be evenly sprayed, and multiple spraying or manual touch-up mode may be needed, thereby increasing the spraying difficulty and cost, in addition, multiple spraying or manual touch-up may lead to problems such as color difference, uneven coating thickness on the surface of advertising board, thereby affecting the overall aesthetic degree. SUMMARY
[0003] Therefore, in view of the deficiencies of the prior art, the utility model provides a spraying device for advertising board to solve the problem of increasing spraying difficulty and cost due to the need for multiple spraying or manual touch-up when the prior art cannot evenly spray the advertising board of special shape in the process of spraying.
[0004] To achieve the above object, the utility model provides the following technical scheme: a spraying device for advertising board, including processing box, one side of processing box is fixedly connected with spraying box, conveying assembly is arranged in processing box, double-sided spraying mechanism is arranged in spraying box;The double-sided spraying mechanism includes second servo motor, the second servo motor is fixedly connected between the opposite inner walls of spraying box, the output shaft of second servo motor is fixedly connected with spraying cover, the inner chamber of spraying cover is symmetrically connected with connecting handle, the end away from spraying cover of connecting handle is rotatably connected with paint spraying gun, the bottom of paint spraying gun is hingedly connected with counterweight, torsion spring is fixedly connected between connecting handle and the bottom of spraying cover, and the torsion spring is sleeved on the outer surface of the rotating shaft of connecting handle.
[0005] As preferred, the conveying assembly includes transmission rod, the transmission rod is rotatably connected in processing box and spraying box in sequence, and the number of transmission rod is two, the outer surface of two transmission rods is fixedly connected with conveying wheel, the outer surface of conveying wheel is commonly connected with conveying belt, and the outer surface of conveying belt is equidistantly fixedly connected with a plurality of fixed sleeves.
[0006] As preferably, the transmission rod two ends are fixedly connected with worm, the processing box one side outer wall is fixedly connected with first servo motor, the first servo motor output shaft is fixedly connected in the worm one end, the processing box inside equidistant symmetry is fixedly connected with a plurality of brush roller, and is located the conveying belt same side brush roller is a group, every group is close to the worm one brush roller outer surface lower part and is fixedly connected with worm gear, the worm is all with the worm gear engagement.
[0007] As preferably, a plurality of brush roller outer surface lower part is fixedly connected with synchronous wheel, the synchronous wheel is located the worm gear directly above, and is located the conveying belt same side synchronous wheel outer surface common transmission is connected with synchronous belt.
[0008] As preferably, the transmission rod outer surface fixedly connected with ratchet wheel in the processing box, the conveying wheel inside rotationally connected with pawl through the recess of being set, the ratchet wheel is located in the recess, and the ratchet wheel and pawl are mutually engaged.
[0009] As preferably, the spring sheet is fixedly connected in the recess of the conveying wheel, and the spring sheet one end is with the pawl outer surface and is fitted.
[0010] Compared with the prior art, the utility model provides a kind of spraying device for billboard, with following beneficial effects: two connecting handles on spraying cover are rotated by second servo motor, so that the spray gun on connecting handle gradually moves down, and the spray gun is always perpendicular to the two side faces of billboard by the gravity of counterweight ball, so that the problem that the surface coating thickness of spray gun and billboard is not consistent caused by the inclined state between spray gun and billboard can be avoided, and the overall appearance after billboard spraying is improved, and the synchronous spraying of both sides of billboard by the mode of uniform rotation and automatic spraying from top to bottom can not only avoid the problem that the surface of special-shaped billboard cannot be uniformly sprayed caused by spraying dead angle when special-shaped billboard is sprayed, but also reduce spraying difficulty and cost.
[0011] By the cooperation of ratchet wheel, pawl and spring sheet, the conveying belt on conveying wheel is driven by first servo motor to uniformly convey multiple billboards, and multiple brush rollers are driven by first servo motor to rotate forward and backward by the cooperation of worm, worm gear, synchronous wheel and synchronous belt, so that dust, debris and other impurities attached to both sides of billboard can be cleaned, so that the problem that coating is easily peeled off caused by insufficient adhesion between coating and billboard surface can be avoided, and the durability and stability of billboard can be improved. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is the whole structure schematic view of the utility model;
[0013] Figure 2 It is the cut structure schematic view of the processing box in the utility model;
[0014] Figure 3 It is the structure enlarged view of the conveying belt and the fixed sleeve in the utility model;
[0015] Figure 4 It is the cut structure schematic view of the conveying wheel in the utility model;
[0016] Figure 5 It is the structure enlarged view of A in the utility model Figure 4
[0017] Figure 6 It is the structure enlarged view of the spraying box inside in the utility model;
[0018] Figure 7 It is the cut structure schematic view of the spraying box in the utility model;
[0019] Figure 8 It is the structure enlarged view of the connecting handle in the utility model.
[0020] In the drawings, the component list represented by each sign is as follows: 1, processing box;2, first servo motor;3, transmission rod;4, conveying wheel;5, conveying belt;6, fixed sleeve;7, worm;8, worm wheel;9, brush roller;10, synchronous wheel;11, synchronous belt;12, ratchet wheel;13, pawl;14, spring sheet;15, spraying box;16, second servo motor;17, spraying cover;18, connecting handle;19, paint spraying gun;20, counterweight ball;21, torsion spring. DETAILED DESCRIPTION
[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.
[0022] The utility model will be further described in detail according to the drawings and embodiments.
[0023] Embodiment one: please refer to Figures 1 to 5 To solve the problems mentioned in the technical scheme, the embodiment of the application provides a spraying device for an advertising board, which comprises a processing box 1, a spraying box 15 fixedly connected to one side of the processing box 1, a conveying assembly arranged in the processing box 1, the conveying assembly comprising a transmission rod 3, the transmission rod 3 being rotationally connected in the processing box 1 and the spraying box 15 in sequence, and the number of the transmission rods 3 being two, the outer surfaces of the two transmission rods 3 being fixedly connected with conveying wheels 4, the outer surfaces of the conveying wheels 4 being jointly and drivably connected with a conveying belt 5, the outer surface of the conveying belt 5 being fixedly connected with a plurality of fixed sleeves 6 at equal intervals, and the inner surfaces of the plurality of fixed sleeves 6 being all provided with anti-skid rings, which are used to increase the friction between the fixed sleeves 6 and the advertising board.
[0024] The transmission rods 3 are both fixedly connected with worms 7, the ends of the worms 7 away from the transmission rods 3 are all rotationally connected to the inner walls of the processing box 1, a first servo motor 2 is fixedly connected to the outer wall of one side of the processing box 1, the output shaft of the first servo motor 2 is fixedly connected to one end of one of the worms 7, a plurality of brush rollers 9 are fixedly and symmetrically connected to the inside of the processing box 1 at equal intervals, the brush rollers 9 located on the same side of the conveying belt 5 form a group, the outer surfaces of the brush rollers 9 close to the worms 7 in each group are all fixedly connected with worm wheels 8 at the lower parts, the worms 7 are all in mesh with the worm wheels 8, the outer surfaces of the plurality of brush rollers 9 at the lower parts are all fixedly connected with synchronous wheels 10, the synchronous wheels 10 are located directly above the worm wheels 8, the outer surfaces of the synchronous wheels 10 located on the same side of the conveying belt 5 are jointly and drivably connected with a synchronous belt 11, and the brush rollers 9, the synchronous wheels 10 and the synchronous wheels 10 are all symmetrically distributed with the conveying belt 5 as the center. The outer surfaces of the transmission rods 3 located in the processing box 1 are fixedly connected with ratchets 12, the conveying wheels 4 located in the processing box 1 are rotationally connected with pawls 13 through grooves, the ratchets 12 are located in the grooves, the ratchets 12 and the pawls 13 are mutually engaged, spring sheets 14 are fixedly connected in the grooves of the conveying wheels 4, and one end of each spring sheet 14 is in close contact with the outer surface of the pawl 13, wherein the pawl 13 can rebound through the spring sheet 14, and the spring sheet 14 is used to limit the rotation amplitude of the pawl 13.
[0025] Working process: in use, the worker first places the support column at the bottom of the billboard to be sprayed on the fixed sleeve 6, the anti-skid ring in the fixed sleeve 6 can make the bottom of the billboard stable on it, then the worker starts the first servo motor 2, makes it start working and drives the transmission rod 3 to rotate, the upper ratchet wheel 12 of the transmission rod 3 rotates in the same direction, at this time, the ratchet teeth on the ratchet wheel 12 and the pawl 13 in the groove on the conveying wheel 4 are mutually engaged, and under the limiting action of the spring sheet 14, the pawl 13 is tightly attached to the surface of the ratchet wheel 12, so that the conveying wheel 4 here can be driven to rotate in the same direction, and then the conveying wheel 4 here drives the conveying belt 5 to rotate along its surface, and drives the conveying wheel 4 in the spraying box 15 to rotate, so that the billboard to be sprayed can be conveyed to the inside of the processing box 1, when the billboard enters the inside of the processing box 1, at the same time, the transmission rod 3 drives the two ends of the worm 7 to rotate, then the worm 7 drives the worm wheel 8 engaged with it to rotate, so that the worm wheel 8 drives the brush roller 9 fixedly connected with it to rotate, at this time, the synchronous wheel 10 on the brush roller 9 rotates synchronously, and drives the synchronous belt 11 on it to rotate, so that the multiple synchronous wheels 10 can also be driven to rotate, and the multiple brush rollers 9 in the processing box 1 can rotate synchronously, so that the dust, debris and other impurities attached to the two sides of the billboard can be cleaned, so that the coating can not be easily peeled off due to insufficient adhesion between the coating and the billboard surface, thereby affecting the durability and stability of the billboard.
[0026] When the dust, debris and other impurities on the surface of the billboard to be sprayed are cleaned, the conveying belt 5 is conveyed to the spraying position of the spraying box 15 through the fixed sleeve 6, then the worker controls the first servo motor 2 to drive the transmission rod 3 to rotate in the opposite direction, at this time, the ratchet wheel 12 on the transmission rod 3 and the pawl 13 in the conveying wheel 4 are not engaged, so the conveying wheel 4 cannot rotate synchronously, and the worm 7 at both ends of the transmission rod 3 rotates in the opposite direction, so that the multiple brush rollers 9 also rotate in the opposite direction, thereby cleaning the two sides of the next billboard to be sprayed.
[0027] Example two: please refer to Figure 3 , Figures 6 to 8The spraying box 15 is internally provided with a double-sided spraying mechanism, which comprises a second servo motor 16 fixedly connected between the opposite inner walls of the spraying box 15, and the output shaft of the second servo motor 16 is fixedly connected with a spraying cover 17. The spraying cover 17 is located inside the spraying box 15, and the diameter of the spraying cover 17 is smaller than the distance between the opposite inner walls of the spraying box 15, so that the spraying cover 17 can rotate inside the spraying box 15. A connecting handle 18 is symmetrically and rotatably connected to the top of the inner cavity of the spraying cover 17, and the end of the connecting handle 18 away from the spraying cover 17 is rotatably connected with a paint spraying gun 19, and the bottom of the paint spraying gun 19 is hingedly connected with a counterweight ball 20. Torsion springs 21 are symmetrically and fixedly connected between the connecting handle 18 and the bottom of the spraying cover 17, and the torsion springs 21 are sleeved on the outer surface of the rotating shaft of the connecting handle 18. The side of the connecting handle 18 away from the counterweight ball 20 is provided with a protrusion for limiting the rotation amplitude of the connecting handle 18 to avoid the angle between the connecting handle 18 and the top of the inner cavity of the spraying cover 17 being too small to cause the connecting handle 18 to deflect with the rotation of the spraying cover 17, and the counterweight ball 20 causes the paint spraying gun 19 to always be in a horizontal state under the action of gravity, thereby avoiding the problem of spraying dead angle during spraying.
[0028] Working process: when the conveying belt 5 pushes the advertising board to be sprayed out of the processing box 1 and into the middle of the two paint spraying guns 19 inside the spraying box 15, the worker immediately starts the second servo motor 16 to make it start working and drive the spraying cover 17 to rotate, and as the spraying cover 17 continuously rotates, the two paint spraying guns 19 on it immediately uniformly spray the material onto the upper part of the advertising board to be sprayed, and then the spraying cover 17 gradually flings the connecting handle 18 outward, so that the connecting handle 18 rotates outward along the top of the inner cavity of the spraying cover 17. In this process, the torsion springs 21 are constantly contracted under the extrusion of the connecting handle 18 and the spraying cover 17, so that the two paint spraying guns 19 also rotate in the same direction, and the two paint spraying guns 19 gradually move towards the bottom of the advertising board, while the counterweight ball 20 keeps the two paint spraying guns 19 always in a horizontal state and perpendicular to the two side faces of the advertising board, thereby avoiding the problem of inconsistent paint thickness on the surface of the advertising board caused by the inclined state between the paint spraying gun 19 and the advertising board, and improving the overall appearance of the advertising board after spraying. The uniform rotation and automatic spraying from top to bottom can simultaneously spray the two sides of the advertising board, which not only avoids the problem of uneven spraying on the surface of the advertising board caused by spraying dead angle when spraying special-shaped advertising boards, but also reduces the difficulty and cost of spraying.
[0029] When the spraying is completed, the worker first closes the second servo motor 16, so that the spraying cover 17 stops rotating, so that the rotating force of the spraying cover 17 gradually decreases, and thus the torsion spring 21 loses the restriction and gradually restores to the original state, the connecting handle 18 on the spraying cover 17 also restores to the original position and gradually moves to the top of the inner cavity of the spraying cover 17, then the worker starts the first servo motor 2, so that it drives the conveying wheel 4 to rotate again, so that the conveying belt 5 drives the sprayed advertising board to the outside of the spraying box 15 through the fixed sleeve 6, and then the worker takes down the advertising board which is completely sprayed.
[0030] The above has carried out the detailed introduction to the application, the principle and the implementation mode of the application are set forth by applying the specific example in this article, the above example is only used for helping the understanding of the method and the core thought of the application; simultaneously, for the general technical personnel in the art, according to the thought of the application, there will be the change in the specific implementation mode and the application range, and the above-mentioned is not understood as the limitation of the application.
Claims
1. A spraying device for billboards, characterized in that: Includes a processing box (1), a spraying box (15) is fixedly connected to one side of the processing box (1), a conveying assembly is provided inside the processing box (1), and a double-sided spraying mechanism is provided inside the spraying box (15). The double-sided spraying mechanism includes a second servo motor (16), which is fixedly connected between the inner walls of the spraying box (15). The output shaft of the second servo motor (16) is fixedly connected to a spraying cover (17). A connecting handle (18) is symmetrically rotatably connected to the top of the inner cavity of the spraying cover (17). A paint gun (19) is rotatably connected to one end of the connecting handle (18) away from the spraying cover (17). A counterweight ball (20) is hinged to the bottom of the paint gun (19). Torsion springs (21) are symmetrically fixedly connected between the connecting handle (18) and the bottom of the spraying cover (17). The torsion springs (21) are sleeved on the outer surface of the rotating shaft of the connecting handle (18).
2. The spraying device for billboards according to claim 1, characterized in that: The conveying assembly includes a transmission rod (3), which is rotatably connected to the inside of the processing box (1) and the spraying box (15) in sequence. There are two transmission rods (3), and the outer surfaces of the two transmission rods (3) are fixedly connected to a conveyor wheel (4). The outer surfaces of the conveyor wheels (4) are connected to a conveyor belt (5) for transmission. The outer surfaces of the conveyor belt (5) are fixedly connected to multiple fixed sleeves (6) at equal intervals.
3. The billboard spraying device according to claim 2, characterized in that: Both ends of the transmission rod (3) are fixedly connected to worm gears (7). A first servo motor (2) is fixedly connected to the outer wall of one side of the processing box (1). The output shaft of the first servo motor (2) is fixedly connected to one end of the worm gear (7). Multiple brush rollers (9) are fixedly connected symmetrically at equal intervals inside the processing box (1). The brush rollers (9) located on the same side of the conveyor belt (5) are a group. A worm wheel (8) is fixedly connected to the lower part of the outer surface of a brush roller (9) close to the worm gear (7) in each group. The worm gear (7) meshes with the worm wheel (8).
4. The billboard spraying device according to claim 3, characterized in that: Synchronous pulleys (10) are fixedly connected to the lower part of the outer surface of multiple brush rollers (9). The synchronous pulleys (10) are located directly above the worm gear (8), and the outer surfaces of the synchronous pulleys (10) on the same side of the conveyor belt (5) are connected to the synchronous belt (11) for transmission.
5. The billboard spraying device according to claim 4, characterized in that: A ratchet (12) is fixedly connected to the outer surface of the transmission rod (3) located in the processing box (1). A pawl (13) is rotatably connected to the inside of the conveyor wheel (4) located in the processing box (1) through a groove. The ratchet (12) is located inside the groove, and the ratchet (12) and the pawl (13) engage with each other.
6. The billboard spraying device according to claim 5, characterized in that: A spring plate (14) is fixedly connected inside the groove of the conveyor wheel (4), and one end of the spring plate (14) is in contact with the outer surface of the pawl (13).