CN113073823B

CN113073823B - Spraying mechanism and spraying equipment

Info

Publication number: CN113073823B
Application number: CN202010010040.XA
Authority: CN
Inventors: 张定勇; 陈国帅; 林兆伟; 吴彩
Original assignee: Guangdong Bozhilin Robot Co Ltd
Current assignee: Guangdong Bozhilin Robot Co Ltd
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2023-04-25
Anticipated expiration: 2040-01-06
Also published as: CN113073823A

Abstract

The application provides a spraying mechanism and spraying equipment, spraying mechanism include base, arm, scraper blade cleaning element and scrape and wipe the piece, and the arm sets up in the base, scrapes and wipes clean subassembly and set up in the base, scrapes and wipes clean subassembly and have working range, scrapes and wipes the piece setting in the arm, and the arm has with scrape and wipe the degree of freedom that the piece removed to working range. The spraying mechanism who provides a through the arm order about scrape and wipe the piece and carry out the coating operation in certain limit, scrape and wipe the piece and move to scrape in the working range of scraping clean subassembly, scrape clean subassembly and clean the surface of scraping the piece to clear away the surplus material that adheres to scraping the piece, keep scraping the roughness on the surface of piece, make scrape the piece and scrape the more level and smooth of wiping by coating object surface at coating operation in-process.

Description

Spraying mechanism and spraying equipment

Technical Field

The application relates to the technical field of architectural decoration, in particular to a spraying mechanism and spraying equipment.

Background

In the existing coating operation process, the coating is carried out in a manual mode, the whole coating process is quite inconvenient, the operation efficiency is not improved, the wall surface is usually scraped by a scraping and wiping piece, tools such as a scraping plate or a scraping knife are adopted, after the scraping and wiping operation, the coating adhered to the surface of the scraping and wiping piece can influence the flatness of the surface of a scraped and wiping object, in addition, the coating can be firmly adhered to the surface of the scraping and wiping piece after being dried, and the coating is difficult to clean.

Disclosure of Invention

The embodiment of the application provides a spraying mechanism and spraying equipment to solve above problem.

The embodiment of the application achieves the aim through the following technical scheme.

In a first aspect, an embodiment of the present application provides a spraying mechanism, including base, arm, scrape clean subassembly and scrape and wipe the piece, the arm sets up in the base, scrapes clean subassembly and has working range, scrapes the piece and sets up in the arm, the arm has with scrape the degree of freedom that the piece moved to working range.

In some embodiments, the wiping cleaning assembly includes a cleaning portion and a driving portion, the spraying mechanism includes a guide rail disposed on the base, the cleaning portion is slidably disposed on the guide rail, the driving portion is in driving engagement with the cleaning portion and is configured to drive the cleaning portion to move within a working range, and the cleaning portion can selectively abut against the wiping member during movement.

In some embodiments, the cleaning portion includes a first swing arm, a second swing arm, and a sliding seat, the sliding seat is slidably disposed on the guide rail, the first swing arm is disposed on the sliding seat, the first swing arm is rotatably disposed on the second swing arm, a clamping gap is formed between the first swing arm and the second swing arm, and the mechanical arm is used for moving the scraping member to the clamping gap and selectively propping the scraping mechanism against the first swing arm or the second swing arm.

In some embodiments, the cleaning portion further includes a reset member connected between the first swing arm and the second swing arm for resetting the first swing arm and the second swing arm.

In some embodiments, the spray coating mechanism further comprises a paint delivery canister provided with an opening, and the wiping cleaning assembly is disposed above the opening.

In some embodiments, the spray mechanism includes a nozzle disposed on the robotic arm, the wiping element includes a wiping surface, and the discharge direction of the nozzle forms an included angle with the wiping surface that is less than 90 °.

In a second aspect, an embodiment of the present application further provides a spraying device, including any one of the above spraying mechanisms, a lifting frame, a moving platform, and a driving mechanism, where the lifting frame has a height direction, and the driving mechanism is used to drive the moving platform to lift along the height direction, and the spraying mechanism is movably disposed on the moving platform.

In some embodiments, the lifting frame comprises a drive rack, the drive rack is arranged along the height direction, the driving mechanism comprises a first driver and a first driving gear, the first driving gear is meshed with the drive rack, and the first driver is used for driving the first driving gear to rotate so as to drive the moving platform to lift.

In some embodiments, the moving platform includes a first guide rail, a second guide rail and a moving guide rack, the first guide rail and the second guide rail are arranged at parallel intervals, the moving guide rack is arranged between the first guide rail and the second guide rail, the spraying mechanism includes a second driver and a second driving gear, the base is movably arranged on the first guide rail and the second guide rail, the second driving gear is meshed with the moving guide rack, and the second driving part is used for driving the second driving gear to rotate so as to drive the base to move.

In some embodiments, the spraying device comprises a paint stirring mechanism, the paint stirring mechanism is arranged on the moving platform, the paint stirring mechanism comprises a discharge pipe, the spraying mechanism comprises a paint conveying tank, the paint conveying tank is provided with an opening, and when the spraying mechanism moves to the first position, the opening of the discharge pipe faces the opening.

Compared with the prior art, the spraying mechanism that this application provided is driven through the arm and is scraped the piece and carry out the coating operation in a certain limit, scrape the piece and move to scrape the working range of scraping clean subassembly in, scrape clean subassembly and clean the surface of scraping the piece to clear away the surplus material that adheres to scraping the piece, keep scraping the surface of scraping the piece and level and smooth, make scrape the piece and scrape the more level and smooth of being scraped by coating object surface at coating operation in-process, realize self-cleaning, save the manual work, improve coating operation efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a spraying mechanism according to an embodiment of the present application.

Fig. 2 is a schematic structural view of a wiping and cleaning mechanism of a spraying mechanism according to an embodiment of the present application.

Fig. 3 is a partial enlarged view at a in fig. 1.

Fig. 4 is a partial enlarged view at B in fig. 2.

Fig. 5 is a schematic view of a spraying device in an operating state according to an embodiment of the present application.

Fig. 6 is a schematic structural view of a lifting frame of a spraying apparatus according to an embodiment of the present application.

Fig. 7 is a partial enlarged view at C in fig. 5.

Fig. 8 is a partial enlarged view at D in fig. 5.

Detailed Description

In order to enable those skilled in the art to better understand the present application, the following description will make clear and complete descriptions of the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

Referring to fig. 1, a spraying mechanism 100 includes a base 110, a mechanical arm 120, a wiping component 130, and a wiping member 140.

The mechanical arm 120 is disposed on the base 110, the scraping and cleaning assembly 130 has a working range, the scraping and cleaning member 140 is disposed on the mechanical arm 120, and the mechanical arm 120 has a degree of freedom for moving the scraping and cleaning member 140 to the working range.

The application provides a spraying mechanism 100 orders about to scrape the piece 140 and carry out the coating operation in a certain limit through arm 120, when scraping the piece 140 and move to scraping the working range of clean subassembly 130, scrape clean subassembly 130 and can clean scraping the surface of piece 140 to clear away the surplus material that adheres to scraping the piece 140, keep scraping the surface of piece 140 and level and smooth, make scrape the piece 140 and can scrape the more level and smooth of being smeared object surface at the coating operation in-process, realize self-cleaning, save the manual work, improve coating operation efficiency.

Referring to fig. 2, in the present embodiment, the wiping cleaning assembly 130 includes a cleaning portion 131 and a driving portion 132, and the driving portion 132 is used for driving the cleaning portion 131 to move within a certain working range, where the working range refers to a region to which the cleaning portion 131 can move. The driving part 132 may drive the cleaning part 131 to move within a preset working range, and as an example, the driving part 132 may drive the cleaning part 131 to perform linear reciprocating motion in a vertical direction or a horizontal direction, or may drive the cleaning part 131 to perform circular motion; as another example, the working range may be changed, for example, the cleaning portion 131 may be adjusted according to different positions of the scraping member 140, the driving portion 132 moves the cleaning portion 131 to the position of the scraping member 140, and drives the cleaning portion 131 to move in a certain range at the position of the scraping member 140 to clean the surface of the scraping member 140, where the movement mode and form of the cleaning portion 131 are not limited specifically, and only the cleaning portion 131 can clean the scraping member 140 within the working range. The driving part 132 may be a driving structure such as a motor, a cylinder, or a robot, and the cleaning part 131 may be provided to the robot, and the cleaning part 131 may be moved by the robot.

In this embodiment, the driving portion 132 drives the cleaning portion 131 to perform a linear reciprocating motion in a vertical direction, and specifically, the wiping cleaning assembly 130 further includes a guide rail 133 (as shown in fig. 2), the guide rail 133 is disposed on the base 110, where the guide rail 133 may be disposed on the base 110 in the vertical direction, and the cleaning portion 131 may be slidably disposed on the guide rail 133 and may perform a linear reciprocating motion in the vertical direction. The mechanical arm 120 may move the scraping element 140 to be within a working range of the cleaning portion 131, where the cleaning portion 131 may selectively abut against the surface of the scraping element 140 during the movement, where "abutting" may mean that the cleaning portion 131 may generate a certain force on the surface of the scraping element 140 to remove substances such as paint adhered to the surface of the scraping element 140, and as an example, the cleaning portion 131 may abut against the surface of the scraping element 140 to scrape off the residual materials adhered to the surface of the scraping element 140; as yet another example, the cleaning part 131 can spray a fluid (e.g., a water flow) of a certain flow rate to impact the surface of the wiper 140 to flush off the surface residue adhering to the wiper 140.

Referring to fig. 3, in the present embodiment, the cleaning portion 131 includes a first swing arm 1311, a second swing arm 1312, and a sliding seat 1313, the sliding seat 1313 is slidably disposed on the guide rail 133, the structures of the first swing arm 1311 and the second swing arm 1312 may be substantially the same, both may be plate structures, as an example, the first swing arm 1311 is disposed on the sliding seat 1313, the second swing arm 1312 is rotatably disposed on the second swing arm 1312, the first swing arm 1311 and the second swing arm 1312 are formed with a clamping gap 1314, and when the second swing arm 1312 rotates in different directions, the size of the clamping gap 1314 changes, for example, when the second swing arm 1312 rotates counterclockwise, the distance between the clamping gaps 1314 increases. The mechanical arm 120 may move the wiper 140 into the clamping gap 1314 and selectively abut the wiper 140 against the first swing arm 1311 or the second swing arm 1312, and as an example, the surface of the wiper 140 abuts against a side of the first swing arm 1311, and the driving part 132 drives the first swing arm 1311 to move up or down in a vertical direction, and the first swing arm 1311 moves against the surface of the wiper 140 during the up-and-down movement to scrape off the residue adhered to the surface of the wiper 140. The distance between the clamping gaps 1314 can be adjusted by rotating the second swing arm 1312, so that the scraping elements 140 with different sizes can extend into the clamping gaps 1314 to abut against the first swing arm 1311 or the second swing arm 1312.

In some embodiments, the cleaning portion 131 further includes a restoring member 1315 (as shown in fig. 3), where the restoring member 1315 may be made of a material having elasticity, such as a tension spring or elastic plastic, the first swing arm 1311 and the second swing arm 1312 may be disposed in an "X" shape to intersect, the intersection of the first swing arm 1311 and the second swing arm 1312 may be rotatably connected to the sliding seat 1313 through a rotation shaft, and the restoring member 1315 may be connected between the first swing arm 1311 and the second swing arm 1312 for restoring the first swing arm 1311 and the second swing arm 1312, and when the gap 1314 between the two is a first preset gap, the restoring member 1315 may be in a free state; when the gap 1314 between the two is the second preset gap, the restoring member 1315 is in a stretched state, and at this time, the first swing arm 1311 and the second swing arm 1312 are restored by the restoring force of the restoring member 1315. When the mechanical arm 120 moves the scraping element 140 into the clamping gap 1314 and abuts against the first swing arm 1311 or the second swing arm 1312, the first swing arm 1311 or the second swing arm 1312 tightly abuts against the surface of the scraping element 140 under the action of the reset element 1315, so that the first swing arm 1311 or the second swing arm 1312 can always generate a larger force on the surface of the scraping element 140 during the movement process, so as to scrape off the residual materials adhered to the surface of the scraping element 140.

In some embodiments, the first swing arm 1311 or the second swing arm 1312 may be a wiper blade or a scraper, or a portion of the first swing arm 1311 or the second swing arm 1312 contacting the wiper 140 is provided in a sheet structure to enhance a force of the first swing arm 1311 or the second swing arm 1312 acting on the surface of the wiper 140, so that the residue adhered to the surface of the wiper 140 can be removed.

In some embodiments, the cleaning part 131 may include only the first swing arm 1311 or the second swing arm 1312, wherein the first swing arm 1311 or the second swing arm 1312 may be directly fixed to the sliding seat 1313; in some embodiments, the driving part 132 is a cylinder, and the first swing arm 1311 or the second swing arm 1312 may be directly fixed to a telescopic rod of the cylinder, and the first swing arm 1311 or the second swing arm 1312 is driven to linearly reciprocate by telescopic rod of the cylinder; in some embodiments, the first swing arm 1311 or the second swing arm 1312 may be provided to a robot, by which the first swing arm 1311 or the second swing arm 1312 is moved to a portion to be cleaned with the wiper 140, the wiper 140 may remain stationary while wiping, the surface of the wiper 140 may be scraped clean by moving the first swing arm 1311 or the second swing arm 1312 by the robot, or the first swing arm 1311 or the second swing arm 1312 may remain stationary while wiping, the wiper 140 may be moved by the robot 120; alternatively, both may be moved simultaneously, for example, when the cleaning portion 131 abuts against one side of the scraping surface 141 of the scraping member 140, the cleaning portion 131 and the scraping member 140 may be moved toward each other, wherein the cleaning portion 131 moves from one side of the scraping surface 141 to the opposite side of the scraping surface 141, so that the moving speed of the scraping member 140 is relatively increased, thus enabling rapid cleaning of the scraping surface 141.

In some embodiments, the cleaning part 131 may be an air knife, and the air knife may be a strip air knife or a ring air knife, and as an example, the air knife is a strip air knife, compressed air enters the cavity of the air knife from the air inlet, and after the air flows through the narrow and thin nozzles, an even air flow sheet is formed along the length direction of the air knife. Since the chamber has a certain compression ratio to the high pressure air flow, the loss of air flow speed is minimized, and the pressure is maximized, so that the air flow ejected through the cleaning part 131 forms an air flow sheet having a strong impact force with minimal shearing force. By providing the cleaning portion 131 as an air knife, the cleaning portion 131 can be brought into contact with the wiper 140 without direct contact, so that the surface of the wiper 140 can be cleaned. In some embodiments, a high-pressure fluid such as water flow may be sprayed through the nozzle 180 of the air knife, and the high-pressure fluid may directly generate an impact force with a certain effect on the surface of the scraping element 140, so as to impact the remainder on the surface of the scraping element 140.

Referring to fig. 4, in the present embodiment, the scraping member 140 has a plate-like structure, and the scraping member 140 includes a scraping surface 141, and the scraping surface 141 is a plane. The scraping element 140 may be disposed at the end of the mechanical arm 120, the mechanical arm 120 may be a five-axis, six-axis joint mechanical arm 120 or other types of mechanical arms 120, which is not limited herein, and only the mechanical arm 120 may move the scraping element 140 to the working range of the scraping cleaning assembly 130, and the mechanical arm 120 may move the scraping element 140 to the surface of the object to be scraped for scraping operation. When the spraying mechanism 100 performs wall coating operation, the mechanical arm 120 can move the scraping and wiping part 140 to a to-be-scraped area of the wall, wherein the scraping and wiping surface 141 can form a certain inclination angle with the wall, one side of the scraping and wiping surface 141 abuts against the wall, and the mechanical arm 120 can drive the scraping and wiping part 140 to move along a certain direction so as to scrape and wipe the wall.

In some embodiments, as shown in fig. 1 and 4, the spraying mechanism 100 further includes a paint delivery tank 170 and a nozzle 180, the nozzle 180 is disposed on the mechanical arm 120, the nozzle 180 may be disposed above the wiper 140, wherein the nozzle 180 may have a circular, oval, polygonal, or other shape, and the paint may be sprayed through the nozzle 180 at a certain shape and flow rate. Wherein, the ejection of compact direction of nozzle 180 can form the contained angle with scraping the face 141, and the contained angle is less than 90, and coating transport jar 170 is provided with uncovered 171, scrapes clean subassembly 130 and can set up in the top of uncovered 171, when scraping clean subassembly 130 and scraping the surplus material that will adhere to the surface of scraping clean subassembly 140, because coating transport jar 170 is located the below of scraping clean subassembly 130 for the surplus material that scrapes from scraping clean subassembly 140 can directly fall into coating transport jar 170, both can avoid the coating to drop on ground, can carry out the reutilization to the surplus material again.

In addition, the spray coating mechanism 100 may further include a delivery pump 181, the delivery pump 181 being used to deliver the coating material in the coating material delivery tank 170 to the spray nozzle 180. In some application environments, when the mechanical arm 120 can move the nozzle 180 to the area to be worked, the transfer pump 181 starts to work, pumps paint such as putty from the paint transfer pot 170 to the nozzle 180, and rapidly sprays paint such as putty on the wall surface; the mechanical arm 120 moves the scraping and wiping part 140 to a position to be scraped, for example, a scraping and wiping surface 141 of the scraping and wiping part 140 forms a certain inclination angle with a wall surface, one side of the scraping and wiping part 140 can be clung to the wall surface, the mechanical arm 120 can move the scraping and wiping part 140 from bottom to bottom, and the putty sprayed on the wall surface is scraped and leveled. When the paint is to be scraped a certain number of times, the mechanical arm 120 can move the scraping member 140 to the working range of the scraping and cleaning assembly 130, the scraping and cleaning assembly 130 cleans the surface of the scraping member 140 to scrape paint such as putty adhered to the surface of the scraping member 140, paint such as putty on the scraping member 140 is prevented from affecting the appearance of the wall surface to be scraped, and the scraped paint is directly dropped into the paint conveying tank 170. In addition, in some embodiments, the scraping surface 141 of the scraping member 140 may be provided with a spraying port (not shown), the spraying port is communicated with the paint delivery tank 170, and the delivery pump 181 may spray paint such as putty from the scraping surface 141, so as to realize the dual function of the scraping member 140.

In some embodiments, as shown in fig. 1, the spraying mechanism 100 further includes a stirrer 191 and a stirring driver 192, where the stirrer 191 is rotatably disposed in the paint conveying tank 170, and the stirrer 191 rotates under the action of the stirring driver 192, where the stirrer 191 may be a spiral stirrer, where blades of the stirrer 191 rotate along a wall of the paint conveying tank 170, so as to scrape paint such as putty adhered to an inner wall of the paint conveying tank 170 downward, preventing more paint such as putty adhered to the wall of the tank from being sticky, and at the same time, stirring the paint uniformly enough, ensuring that the paint does not dry, and avoiding the paint such as putty from blocking a putty pump of the paint stirring mechanism 250.

Referring to fig. 5, the embodiment of the application further provides a spraying apparatus 200, which includes a lifting frame 210, a moving platform 220, a driving mechanism 230, and the spraying mechanism 100 described above.

The lifting frame 210 has a height direction, the driving mechanism 230 is used for driving the moving platform 220 to lift along the height direction, and the spraying mechanism 100 is movably disposed on the moving platform 220.

In the present embodiment, the lifting frame 210 may be disposed in a vertical direction (Y direction as shown in fig. 5), wherein the lifting frame 210 is a frame structure, and the lifting frame 210 may be formed by sequentially connecting a plurality of frame units 211 in the vertical direction, wherein the number of the frame units 211 may be 1, 2, or more. The height of the lifting frame 210 may be set according to practical requirements, for example, the height of the lifting frame 210 may be 10m, 20m or any other value. The lifting frame 210 may include a base frame 212, the base frame 212 may be fixed to the ground, one of the frame units 211 is connected to the base frame 212, the base frame 212 may have a function of adjusting the level to ensure the perpendicularity of the lifting frame 210, and as an example, the base frame 212 may include a base frame 2121 and an adjusting screw 2122, the adjusting screw 2122 is connected to the bottom of the base frame 2121, and the level of the base frame 2121 may be adjusted by adjusting the length of the adjusting screw 2122 screwed into the base frame 2121. Furthermore, in some embodiments, the lifting frame 210 may not include the bottom frame 212, and the frame unit 211 may be directly fixed to the ground.

In some embodiments, the frame unit 211 may be a standard joint, which may be shared with existing SC200 construction elevators, without requiring additional special manufacturing, saving manufacturing costs.

In this embodiment, the moving platform 220 may be a frame structure, the moving platform 220 may be slidably disposed on the lifting frame 210, where the moving platform 220 may be formed by sequentially connecting a plurality of platform units 221, and the moving platform 220 may be disposed along a horizontal direction (X direction shown in fig. 5), so that the spraying mechanism 100 may move in the horizontal direction, and the overall length of the moving platform 220 may be changed by adjusting the number of the platform units 221. The length of the moving platform 220 may be set according to actual requirements, and as an example, the length of the moving platform 220 may be 8 meters, 16 meters or any other length, and the moving length of the spraying mechanism 100 in the horizontal plane may be changed by changing the length of the moving platform 220, so that coating operations in different ranges may be realized.

In this embodiment, the lifting frame 210 may include a transmission rack 213, the transmission rack 213 is disposed along a vertical direction, the driving mechanism 230 includes a first driver 231 and a first driving gear (not shown), the first driving gear is engaged with the transmission rack 213, and the first driver 231 is used for driving the first driving gear to rotate to drive the moving platform 220 to lift. The first driver 231 may include a speed reducer and a motor, and the first driving gear is connected with a rotating shaft of the motor, engaged with the transmission rack 213 through the first driving gear, and driven to rotate by the motor to provide power to achieve lifting of the lifting platform. In some embodiments, the motor may be equipped with an encoder, forming a closed loop control, which may accurately control the lifting distance of the lifting platform. In some embodiments, the moving platform 220 may be driven to lift by a transmission chain or a transmission belt, which is not limited herein.

In some embodiments, as shown in fig. 7, the moving platform 220 may include a first guide rail 222, a second guide rail 223, and a moving guide rack 224, where the first guide rail 222 and the second guide rail 223 are disposed at a parallel interval, the moving guide rack 224 is disposed between the first guide rail 222 and the second guide rail 223, the spraying mechanism 100 further includes a second driver 151 and a second driving gear 152, and the base 110 is movably disposed between the first guide rail 222 and the second guide rail 223, and the base 110 may be provided with a chute that mates with the first guide rail 222 and the second guide rail 223, or may be provided with a roller 160 (as shown in fig. 8) at the bottom of the base 110, where the roller 160 is rotatably disposed on the first guide rail 222 and the second guide rail 223. The second driving gear 152 is engaged with the moving guide rack 224, and the second driving portion 132 is configured to drive the second driving gear 152 to rotate so as to drive the base 110 to move. By engaging the second drive gear 152 with the movement guide rack 224, the spray mechanism 100 can be accurately and quickly moved on the moving platform 220. In some embodiments, the spraying mechanism 100 may be driven to move by a conveyor belt, a roller conveyor, or other conveying structures, which are not limited herein.

In some embodiments, as shown in fig. 5, the spraying apparatus 200 may further include a wall-attaching member 240, and the wall-attaching member 240 is used to fix the crane 210 to the wall, so that the crane 210 is more firmly fixed to the wall, preventing the crane 210 from tilting.

In some embodiments, as shown in fig. 8, the spraying apparatus 200 further includes a paint stirring mechanism 250, where the paint stirring mechanism 250 includes a storage tank 251 and a pump body 252, the storage tank 251 may be used to store paint, the paint stirring mechanism 250 is disposed on the moving platform 220, the paint stirring mechanism 250 includes a discharge pipe 253, the discharge pipe 253 is in communication with the storage tank 251, when the spraying mechanism 100 moves to the first position, the first position refers to a position where an opening 171 of the paint conveying tank 170 faces the discharge pipe 253, as an example, when the spraying mechanism 100 is in the first position, the opening of the discharge pipe 253 faces the opening 171 of the paint conveying tank 170, the opening of the discharge pipe 253 is located above the opening 171, the pump body 252 draws paint in the storage tank 251 to the discharge pipe 253, and paint sprayed out through the discharge pipe 253 may directly fall into the paint conveying tank 170, so as to implement replenishment of the paint by the spraying mechanism 100, and no separate pipe is required to communicate the paint stirring mechanism 250 with the paint conveying tank 170, so as to improve the paint supply efficiency.

In some embodiments, as shown in fig. 8, the spraying apparatus 200 may further include a fall protection safety device 260, where the fall protection safety device 260 may be a centrifugal speed limiting device, and when the running speed of the protecting object in the downlink reaches the calibrated running speed, the throwing block of the centrifugal speed limiting device shifts to drive the cone drum to move toward the braking belt, contact with the cone drum and generate braking torque, and the belleville spring set is compressed, and measures the magnitude of the compression, so that the braking distance when the rated braking load is determined by calculation. The anti-falling safety device 260 can act when the brake of the motor fails, so that the whole lifting platform is stopped on the lifting frame 210, and the safety of equipment is ensured.

In this embodiment, the number of the spraying mechanisms 100 may be two, and the two spraying mechanisms 100 may be movably disposed on the moving platform 220, and the two spraying mechanisms may be far away from or near to each other during the moving process. By providing two spraying mechanisms 100, the wall surface can be simultaneously sprayed, and the working efficiency of the spraying device 200 can be improved. In other embodiments, the number of the spraying mechanisms 100 may be 1 or more, and is not particularly limited herein.

The spraying equipment 200 that this application embodiment provided drives mobile platform 220 through actuating mechanism 230 and goes up and down for spraying mechanism 100 can rise to different heights, simultaneously, spraying mechanism 100 can remove to mobile platform 220's different positions and carry out the coating operation to the different positions of the wall of same height, can realize the coating operation of large tracts of land, has greatly improved coating efficiency.

The above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.

Claims

1. A spray mechanism, comprising:

a base;

the mechanical arm is arranged on the base;

the scraping cleaning assembly is arranged on the base and is provided with a working range, the scraping cleaning assembly comprises a cleaning part, a driving part and a guide rail, the guide rail is arranged on the base, the cleaning part is slidably arranged on the guide rail, and the driving part is in transmission fit with the cleaning part and is used for driving the cleaning part to move in the working range; and

the scraping piece is arranged on the mechanical arm, the mechanical arm has the freedom degree of moving the scraping piece to the working range, and the cleaning part can selectively abut against the scraping piece in the moving process;

wherein the working range refers to an area to which the cleaning part can move.

2. The spray mechanism of claim 1, wherein the cleaning portion comprises a first swing arm, a second swing arm, and a sliding seat, the sliding seat is slidably disposed on the guide rail, the first swing arm is disposed on the sliding seat, the first swing arm is rotatably disposed on the second swing arm, a clamping gap is formed between the first swing arm and the second swing arm, and the mechanical arm is configured to move the wiper to the clamping gap and selectively abut the wiper against the first swing arm or the second swing arm.

3. The spray mechanism of claim 2, wherein the cleaning portion further comprises a reset member coupled between the first swing arm and the second swing arm for resetting the first swing arm and the second swing arm.

4. A spraying mechanism as claimed in any one of claims 1 to 3, which further comprises a paint delivery canister provided with an opening, the wiper cleaning assembly being disposed above the opening.

5. A spraying mechanism according to any one of claims 1 to 3, characterised in that the spraying mechanism comprises a nozzle arranged in the arm, the scraping element comprising a scraping surface, the discharge direction of the nozzle and the scraping surface forming an angle, the angle being less than 90 °.

6. A spraying device, comprising a lifting frame, a moving platform, a driving mechanism and a spraying mechanism according to any one of claims 1-5, wherein the lifting frame has a height direction, the driving mechanism is used for driving the moving platform to lift along the height direction, and the spraying mechanism is movably arranged on the moving platform.

7. The spraying apparatus of claim 6 wherein the crane comprises a drive rack disposed along the height direction, the drive mechanism comprising a first driver and a first drive gear, the first drive gear engaged with the drive rack, the first driver for driving the first drive gear to rotate to drive the mobile platform to lift.

8. The spraying apparatus of any one of claims 6 to 7 wherein the moving platform comprises a first rail, a second rail and a moving guide rack, the first rail and the second rail being disposed in parallel spaced relation, the moving guide rack being disposed between the first rail and the second rail, the spraying mechanism comprising a second driver and a second drive gear, the base being movably disposed on the first rail and the second rail, the second drive gear being engaged with the moving guide rack, the second driver being configured to drive the second drive gear to rotate to move the base.

9. The spraying device of any one of claims 6 to 7, comprising a paint agitation mechanism disposed on the moving platform, the paint agitation mechanism comprising a discharge tube, the spraying mechanism comprising a paint delivery canister, the paint delivery canister being provided with an opening, an outlet of the discharge tube being directed towards the opening when the spraying mechanism is moved to the first position.