A paint spraying device with paint recycling and recycling

Abstract

This invention relates to the field of industrial manufacturing technology, specifically disclosing a painting device with paint recycling and reuse capabilities, including a paint canister, a storage tank, a connecting frame, an electric gripper, a nozzle, a paint supply assembly, and a blowing assembly. The paint canister is a frustum-shaped cylinder with its larger cross-section facing upwards and having an opening with rounded edges. The smaller cross-section faces downwards and is sealed and fixedly connected to the top of the storage tank. The top of the storage tank has several through holes penetrating the bottom of the paint canister, connecting the interior of the paint canister to the interior of the storage tank. A ring-shaped connecting frame is rotatably connected to the inner wall of the paint canister near the opening. The top of the connecting frame has a support structure for mounting the electric gripper, and the connecting frame also has a mounting structure for mounting the nozzle. The paint supply assembly communicates with the nozzle to provide paint. This invention addresses the problems of paint waste and cleaning difficulties in traditional painting devices.

Description

Technical Field

[0001] This invention relates to the field of industrial manufacturing technology, and in particular to a painting device with paint recycling and reuse capabilities. Background Technology

[0002] In the industrial manufacturing sector, spray painting is a crucial step in improving product appearance and enhancing corrosion resistance, and it is widely used in various industries such as automotive, machinery, electronics, and furniture. However, traditional spray painting equipment faces numerous problems in practical applications, severely restricting the efficiency, quality, and environmental friendliness of spray painting operations.

[0003] In traditional spray painting equipment, a large amount of paint drips and scatters because it does not effectively adhere to the workpiece surface, resulting in serious resource waste. Statistics show that in ordinary spray painting operations, the effective utilization rate of paint is often less than 50%, which not only increases production costs but also poses potential environmental hazards.

[0004] Traditional spray nozzles are typically fixed in place, limiting the spraying angle and range, making it difficult to achieve uniform, all-around coating of the workpiece without blind spots. For workpieces with complex shapes, such as grooves or corners, traditional devices struggle to guarantee coating quality, easily leading to uneven coating thickness and missed areas, which negatively impact the overall performance and appearance of the product.

[0005] During the painting process, paint easily adheres to the inner wall of the spray gun, nozzles, and other components. Over time, this paint gradually dries and accumulates, not only affecting the normal operation of the equipment but also increasing the difficulty and workload of cleaning. Moreover, the dried paint is difficult to remove completely and can easily mix with new paint in subsequent spraying operations, affecting the coating quality.

[0006] Therefore, a paint spraying device with paint recycling and reuse capabilities is proposed to solve the problems of paint waste and cleaning difficulties in traditional paint spraying devices. Summary of the Invention

[0007] The purpose of this invention is to provide a paint spraying device with paint recycling and reuse capabilities to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: A painting device with paint recycling and reuse capabilities includes a paint canister, a storage tank, a connecting frame, an electric gripper, a spray nozzle, a paint supply assembly, and a blower assembly. The paint spray can is a frustum-shaped cylinder with the larger end facing upward and having an opening with rounded edges. The smaller end faces the ground and is sealed and fixedly connected to the top of the storage box. The top of the storage box has several through holes penetrating the bottom of the paint spray can, so that the inside of the paint spray can is connected to the inside of the storage box. A ring-shaped connecting frame is rotatably connected to the inner wall of the spray gun near the opening. The top of the connecting frame is provided with a support structure for installing electric grippers. The electric grippers are used to hold the workpiece to be sprayed. The connecting frame is provided with a mounting structure for mounting the spray head, and the paint supply assembly is connected to the spray head to provide paint; The blower assembly is fixed on the connecting frame and is used to blow the paint and paint mist that fall during the painting process toward the through hole to achieve paint recycling.

[0009] Preferably, the connecting frame can rotate freely around the circumference of the paint spray can; a support plate is fixedly installed on the top of the connecting frame and is arranged horizontally with its center; a sliding block that can reciprocate along its length is slidably connected to the support plate, and the sliding block constitutes part of the support structure.

[0010] Preferably, a cylinder is fixedly installed below the sliding block. The output end of the cylinder is vertically oriented towards the bottom of the paint spraying tube and is fixedly connected to the electric gripper. After the electric gripper clamps the workpiece, a spraying gap is left between the bottom of the workpiece and the bottom of the paint spraying tube.

[0011] Preferably, a hollow connecting plate is fixed to the side of the connecting frame away from the inner wall of the paint spray tube. The connecting plate extends towards the end of the paint spray tube with a smaller cross-section in a direction parallel to the inner wall of the paint spray tube, and the connecting plate constitutes part of the mounting structure. A scraper is fixed to the side of the connecting plate near the connecting frame. The scraper is positioned towards the inner wall of the paint spray tube and contacts its surface.

[0012] Preferably, the connecting plate has a mounting groove on the side of its end face away from the connecting frame, and a sliding seat that can be reciprocated along its length is slidably connected in the mounting groove; a telescopic rod is fixed on the sliding seat, and a mounting plate is fixed to the output end of the telescopic rod.

[0013] Preferably, a second mounting plate is rotatably connected to the side of the first mounting plate away from the telescopic rod, a first motor is fixed on the second mounting plate, and the output end of the first motor passes through the second mounting plate and is fixedly connected to the first mounting plate. Mounting plate three, which is arranged at an angle upward, is also fixed on mounting plate two. Motor two is fixed on the side wall of mounting plate three, and the output end of motor two is fixedly connected to the nozzle.

[0014] Preferably, the paint supply assembly includes a paint channel, a paint box, and a pump body; A hollow tubular paint channel is vertically fixed above the upper end of the connecting plate near the connecting frame. A flexible hose is adapted to be installed inside the paint channel. One end of the flexible hose passes through the hollow cavity and telescopic rod of the connecting plate, and the other end is fixedly connected to the input end of the spray nozzle. A paint box is fixedly installed on the outer wall of the paint channel, and a pump body is fixedly installed inside the paint box. The pump body is fixedly connected to the top of the paint channel through a delivery pipeline and is interconnected with it.

[0015] Preferably, an annular support frame is coaxially fixed above the paint spray gun, and an end cap that fits the paint spray gun with a clearance is fixedly installed on the inner wall of the support frame, and the end cap is provided with a plurality of air holes. A motor is fixedly installed at the center of the top of the end cover. A telescopic mechanism is fixedly installed on the top of the motor. The bottom of the telescopic mechanism is in contact with the ground. The output end of the motor is rotatably connected to the center of the end cover.

[0016] Preferably, the blower assembly is sealed and fixedly connected to the other end of the connecting plate away from the connecting frame; the blower assembly includes a support ring coaxially arranged with the paint spray gun, and a plurality of mounting brackets are horizontally arranged along the center circumference of the inner wall of the support ring, and a fan arranged vertically is fixed on each of the mounting brackets, the output end of the fan is arranged facing the through hole at the bottom of the paint spray gun, and the fan has a bidirectional blowing function.

[0017] The beneficial effects of this invention are as follows: This invention achieves efficient recovery of excess paint during the spraying process through three methods: dripping paint recovery, paint adhering to the inner wall recovery, and paint mist recovery. Dripping paint flows directly into the storage tank, paint adhering to the inner wall is scraped off and collected by a scraper, and paint mist is sucked in and recovered by a fan, minimizing paint waste. The recovered paint can be reused after simple processing, forming a closed-loop recycling system for paint, significantly reducing the raw material cost of spraying operations and improving resource utilization. By employing a multi-motor coordinated drive, the spray head achieves multi-angle, omnidirectional rotation. Motor Three drives the end cap to rotate, causing the connecting frame, connecting plate, and spray head to move in a circular motion around the workpiece. Motor One drives Mounting Plate Two to rotate 1 / 2 relative to the mounting plate, while Motor Two drives the spray head itself to rotate. Simultaneously, the distance and angle between the spray head and the workpiece can be adjusted by regulating the position of the sliding seat and the extension / retraction of the telescopic rod. This omnidirectional spraying method ensures uniform coating coverage of the workpiece surface, achieving seamless coating even for complex-shaped workpieces. This effectively improves the quality and uniformity of the coating, enhancing the overall performance and appearance of the product. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2This is a schematic diagram of the paint spray can structure according to an embodiment of the present invention; Figure 3 This is an embodiment of the present invention. Figure 2 Enlarged schematic diagram of region A; Figure 4 This is an embodiment of the present invention. Figure 2 Enlarged schematic diagram of region B; Figure 5 This is a schematic diagram of the internal structure of an embodiment of the present invention.

[0019] In the diagram: 1. Spray gun; 101. Opening; 102. Storage box; 1021. Through hole; 103. Connecting frame; 104. Support plate; 105. Sliding block; 106. Cylinder 1; 107. Electric gripper; 108. Connecting plate; 1081. Scraper; 1082. Mounting groove; 1083. Sliding seat; 1084. Telescopic rod; 1085. Mounting plate 1; 1086. Mounting plate 2; 1087. Motor 1; 1088. Mounting plate 3; 1089. Motor 2; 109. Spray nozzle; 110. Paint channel; 111. Hose; 112. Paint box; 113. Pump body; 114. End cap; 1141. Air hole; 115. Support frame; 116. Motor 3; 117. Telescopic mechanism; 2. Blower assembly; 201. Support ring; 202. Mounting frame; 203. Fan. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Reference Figures 1-5 A painting device with paint recycling and reuse capabilities includes a paint spray gun 1. The paint spray can 1 is a frustum-shaped cylinder with its larger cross-section facing upwards and having an opening 101. The edges of the opening 101 are rounded to facilitate the insertion and removal of the workpiece to be painted and to prevent scratching the workpiece or the operator. The smaller cross-section end of the paint spray can 1 faces the ground and is sealed and fixedly connected to the top of the storage box 102. The storage box 102 is used to temporarily collect and store excess paint dripping during the painting process.

[0022] The workpiece to be painted is placed inside the paint spraying tube 1 near the end with the smaller cross-section. The top of the storage box 102 has several through holes 1021, which penetrate the bottom of the paint spraying tube 1, connecting the inside of the paint spraying tube 1 with the inside of the storage box 102, so that excess paint can flow into the storage box 102 through the through holes 1021 for recycling.

[0023] An annular connecting frame 103 is rotatably connected to the inner wall of the paint spray gun 1 near the opening 101. The connecting frame 103 can rotate freely around the circumference of the paint spray gun 1. A support plate 104 is fixedly installed on the top of the connecting frame 103. The support plate 104 passes through the center of the connecting frame 103 and is arranged horizontally. A sliding block 105 is slidably connected to the support plate 104. The sliding block 105 can reciprocate along the length of the support plate 104.

[0024] A cylinder 106 is fixedly installed below the sliding block 105. The output end of the cylinder 106 is vertically oriented towards the bottom of the paint spraying cylinder 1 and is fixedly connected to an electric gripper 107. The electric gripper 107 is used to clamp and fix the workpiece to be painted, suspending the workpiece in the air, so that there is a spraying gap between the bottom of the workpiece and the bottom of the paint spraying cylinder 1, which facilitates a comprehensive and thorough painting operation on the bottom and sides of the workpiece.

[0025] A connecting plate 108 is fixed to the side of the connecting frame 103 away from the inner wall of the paint spray gun 1. The connecting plate 108 has a hollow structure and extends towards the end with a smaller cross-section in a direction parallel to the inner wall of the paint spray gun 1. A scraper 1081 is fixed to the side of the connecting plate 108 near the connecting frame 103. The scraper 1081 is positioned facing the inner wall of the paint spray gun 1 and in contact with its surface. It is used to scrape off excess paint adhering to the inner wall of the paint spray gun 1 during the rotation of the connecting frame 103, preventing the paint from drying and accumulating.

[0026] The connecting plate 108 has a mounting groove 1082 on its end face away from the connecting frame 103. A sliding seat 1083 is slidably connected in the mounting groove 1082, and the sliding seat 1083 can be adjusted back and forth along the length of the mounting groove 1082. A telescopic rod 1084 is fixed on the sliding seat 1083, and a mounting plate 1085 is fixed to the output end of the telescopic rod 1084.

[0027] Mounting plate 1085 is rotatably connected to mounting plate 2 1086 on the side away from telescopic rod 1084. Mounting plate 2 1086 is fixed with motor 1087. The output end of motor 1087 passes through mounting plate 2 1086 and is fixedly connected to mounting plate 1085, and is used to drive mounting plate 2 1086 to rotate circumferentially relative to mounting plate 1085.

[0028] Mounting plate 2 1086 is also fixed with mounting plate 3 1088 arranged obliquely upward. Mounting plate 3 1088 has motor 2 1089 fixed on its side wall. The output end of motor 2 1089 has nozzle 109 fixed. Through the cooperation of motor 1 1087 and motor 2 1089, the nozzle 109 can perform multi-angle and all-round spraying operations to ensure uniform coating on the workpiece surface.

[0029] A paint channel 110 is vertically fixed above the end of the connecting plate 108 near the connecting frame 103. The paint channel 110 is a hollow tubular structure, and a flexible hose 111 is fitted inside it. One end of the flexible hose 111 passes through the hollow cavity of the connecting plate 108 and the telescopic rod 1084, and the other end is fixedly connected to the input end of the spray head 109, ensuring that the paint can be smoothly delivered to the spray head 109 through the flexible hose 111 to provide raw materials for the spraying operation.

[0030] A paint box 112 is fixedly installed on the outer wall of the paint channel 110. The paint box 112 is used to store the paint to be sprayed. A pump body 113 is fixedly installed inside the paint box 112. The pump body 113 is fixedly connected to the top of the paint channel 110 through a delivery pipeline and communicates with it. When the pump body 113 is working, it can draw out the paint in the paint box 112, send it into the paint channel 110 through the delivery pipeline, and then deliver it to the spray head 109 through the hose 111 to achieve a stable supply of paint.

[0031] A ring-shaped support frame 115 is coaxially fixed above the paint spray gun 1. An end cap 114 is fixedly installed on the inner wall of the support frame 115, and the end cap 114 is clearance-fitted with the paint spray gun 1. The end cap 114 has several air holes 1141, which are used for ventilation during the painting operation to balance the air pressure inside the paint spray gun 1 and the outside environment, so as to avoid affecting the spraying effect, paint delivery and paint mist recovery due to excessively high or low air pressure inside the gun.

[0032] A motor 116 is fixedly installed at the center of the upper part of the end cover 114. A telescopic mechanism 117 is fixedly installed on the top of the motor 116. The bottom of the telescopic mechanism 117 contacts the ground and serves to support the entire upper structure and adjust the height of the end cover 114 and related components. The output end of the motor 116 is rotatably connected to the center of the end cover 114, which can drive the end cover 114 to rotate synchronously, thereby actuating the movement of the components indirectly related to the end cover 114 below.

[0033] The other end of the connecting plate 108 away from the connecting frame 103 is fixed with a blower assembly 2. The blower assembly 2 is sealed and fixedly connected to the connecting plate 108 to ensure a stable connection.

[0034] The blower assembly 2 includes a support ring 201, which is coaxially disposed inside the paint spraying tube 1. A gap is left between the outer wall of the support ring 201 and the inner wall of the paint spraying tube 1 to prevent friction and interference between the support ring 201 and the inner wall of the paint spraying tube 1 when the support ring 201 rotates.

[0035] The inner wall of the support ring 201 has several mounting brackets 202 arranged horizontally along its center circumference. All mounting brackets 202 are fixedly connected to the inner wall of the support ring 201, and are evenly distributed and subjected to balanced force, ensuring stable installation of the fan 203. A fan 203 is fixed to each of the mounting brackets 202. The fan 203 is arranged vertically, with its output end facing the through hole 1021 at the bottom of the paint spray gun 1.

[0036] When the blower 203 is working, it has a two-way blowing function. On the one hand, it can blow the scattered paint located below the blower 203 and at the bottom of the paint spraying tube 1 toward the through hole 1021, accelerating the flow of paint into the storage box 102 and improving the recycling efficiency. On the other hand, the paint mist located above the fan 203 and floating inside the paint spraying barrel 1 can be drawn into the fan 203 and then blown by the fan 203 to the through hole 1021 to realize the recovery of paint mist, further reduce paint waste, and at the same time prevent paint mist from adhering to the inner wall of the paint spraying barrel 1 or the surface of the workpiece, affecting the spraying quality and working environment.

[0037] Working principle: I. Workpiece Fixing and Equipment Pretreatment Before operation, adjust the height of the end cap 114 and related components using the telescopic mechanism 117 to position the opening 101 of the paint spray gun 1 in an easy-to-operate position. Then, place the workpiece to be painted into the paint spray gun 1 through the opening 101. At the same time, check the operating status of the pump body 113, each motor and the fan 203, ensure that the hose 111 is connected smoothly, the paint box 112 is filled with sufficient paint to be sprayed, the storage box 102 is in an unloaded and ready state, and the air hole 1141 on the end cap 114 is kept unobstructed to balance the air pressure inside the paint spray gun 1 with the outside air pressure.

[0038] II. All-round spraying operation After the spraying operation is started, the pump body 113 starts working, extracts the paint from the paint box 112, sends it into the paint channel 110 through the delivery pipeline, and then steadily delivers it to the spray head 109 through the hose 111 that passes through the connecting plate 108 and the telescopic rod 1084.

[0039] At this time, motor 1087, motor 2 1089, and motor 3 116 start synchronously, forming an all-round spraying linkage: motor 3 116 drives end cover 114 to rotate, which in turn drives connecting frame 103 to rotate around the paint spraying barrel 1, causing connecting plate 108, nozzle 109 and other components to move around the workpiece in a circular motion; motor 1087 drives mounting plate 2 1086 to rotate around mounting plate 1 1085, and motor 2 1089 drives nozzle 109 to rotate itself. At the same time, the distance and angle between nozzle 109 and workpiece can be adjusted by adjusting the position of sliding seat 1083 in mounting groove 1082 and the extension and retraction of telescopic rod 1084, so as to achieve multi-angle and all-round coverage of workpiece surface by nozzle 109, ensuring uniform spraying without dead corners.

[0040] During this process, the sliding block 105 can reciprocate along the length of the support plate 104, driving the cylinder 106, the electric gripper 107 and the clamped workpiece to move synchronously, further expanding the spraying coverage area and adapting to the spraying needs of workpieces of different sizes and shapes; the air hole 1141 on the end cover 114 continuously vents to avoid pressure imbalance caused by paint atomization and gas flow in the paint spraying tube 1, and to prevent affecting the stability of paint delivery and spraying effect.

[0041] After the workpiece surface is coated, the height of the electric gripper 107 is adjusted by controlling the extension and retraction of the cylinder 106 to accurately clamp the workpiece and suspend it in the air, ensuring that there is a sufficient spraying gap between the bottom of the workpiece and the bottom of the paint spraying tube 1. The position of the nozzle 109 is adjusted so that it is below the workpiece and the nozzle is facing the bottom of the workpiece, thereby spraying the bottom of the workpiece.

[0042] III. Multiple Recycling Pathways for Coatings Excess paint generated during the spraying process is efficiently recycled through three methods to minimize waste: Drip paint recovery: When the nozzle 109 is spraying, excess paint that does not adhere to the surface of the workpiece will drip naturally and flow directly into the sealed storage box 102 below through several through holes 1021 at the bottom of the paint spraying tube 1, so as to realize the rapid collection and temporary storage of drip paint. Paint adhering to the inner wall is recycled: When the connecting frame 103 rotates, the scraper 1081 fixed on one side of it comes into close contact with the inner wall of the paint spraying tube 1, and scrapes off the excess paint adhering to the inner wall at the same time. The scraped paint slides down the inner wall of the paint spraying tube 1 and flows into the storage box 102 through the through hole 1021, which avoids the paint from drying and accumulating on the tube wall, which reduces waste and facilitates equipment cleaning. Paint mist recovery: The blowing assembly 2 at the end of the connecting plate 108 works synchronously, and the support ring 201 rotates together with the connecting plate 108. The fan 203 on the inner wall mounting bracket 202 starts and plays a bidirectional blowing role: On the one hand, the fan 203 blows downward, blowing the paint that has fallen to the bottom of the paint spraying tube 1 and has not flowed into the through hole 1021 toward the through hole 1021, accelerating its entry into the storage box 102; on the other hand, the fan 203 draws upward, sucking in the paint mist floating inside the paint spraying tube 1, and then blowing it downward toward the through hole 1021, realizing the recovery of paint mist, while avoiding paint mist adhering to the surface of the workpiece and affecting the spraying quality, or spreading to the working environment and causing pollution.

[0043] IV. Coating Recycling and Work Completion The recycled paint collected in storage tank 102, after simple treatment such as filtration and clarification, can be reintroduced into paint box 112, and then pumped out again by pump body 113 and delivered to spray head 109, realizing closed-loop recycling of paint and reducing the raw material cost of spraying operations.

[0044] After the spraying operation is completed, turn off all motors, pumps and fans. Adjust the height of the end cover 114 through the telescopic mechanism 117, control the cylinder 106 to extend and retract, and release the electric gripper 107 to remove the sprayed workpiece from the opening 101. Then, the connecting frame 103 can be started to rotate continuously. Use the scraper 1081 to thoroughly clean the residual paint on the inner wall of the paint spraying tube 1. The fan 203 will work continuously for a period of time to remove residual paint mist in the tube, ensuring the cleanliness of the equipment and preparing for the next operation.

[0045] Throughout the entire process, all components work together to achieve comprehensive and high-quality coating of the workpiece, while minimizing paint waste through multiple recycling and reuse methods, and taking into account both the cleanliness of the working environment and the practicality of the equipment.

[0046] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A spray painting device with paint recycling and reuse capabilities, characterized in that, It includes a paint spray can (1), a storage box (102), a connecting frame (103), an electric gripper (107), a spray nozzle (109), a paint supply assembly, and a blower assembly (2); The paint spraying tube (1) is a frustum-shaped cylinder with the larger end facing upward and having an opening (101). The edge of the opening (101) is rounded. The smaller end faces the ground and is sealed and fixedly connected to the top of the storage box (102). The top of the storage box (102) has several through holes (1021) that penetrate the bottom of the paint spraying tube (1), so that the inside of the paint spraying tube (1) is connected to the inside of the storage box (102). The inner wall of the paint spraying tube (1) near the opening (101) is rotatably connected to an annular connecting frame (103). The top of the connecting frame (103) is provided with a support structure for installing an electric gripper (107). The electric gripper (107) is used to clamp the workpiece to be painted. The connecting frame (103) is provided with a mounting structure for mounting a spray nozzle (109), and the paint supply assembly is connected to the spray nozzle (109) to provide paint; The blowing assembly (2) is fixed on the connecting frame (103) and is used to blow the paint and paint mist that fall during the painting process toward the through hole (1021) to realize paint recycling.

2. The spray painting device with paint recycling and reuse capability according to claim 1, characterized in that, The connecting frame (103) can rotate freely around the paint spray can (1); a support plate (104) passing through its center and arranged horizontally is fixedly installed on the top of the connecting frame (103); a sliding block (105) that can reciprocate along its length direction is slidably connected on the support plate (104); the sliding block (105) constitutes part of the support structure.

3. A spray painting device with paint recycling and reuse capabilities according to claim 2, characterized in that, A cylinder (106) is fixedly installed below the sliding block (105). The output end of the cylinder (106) is set vertically toward the bottom of the paint spraying cylinder (1) and is fixedly connected to the electric gripper (107). After the electric gripper (107) clamps the workpiece, a spraying gap is left between the bottom of the workpiece and the bottom of the paint spraying cylinder (1).

4. A spray painting device with paint recycling and reuse capability according to claim 1, characterized in that, A hollow connecting plate (108) is fixed on the side of the connecting frame (103) away from the inner wall of the paint spraying tube (1). The connecting plate (108) extends towards the end of the paint spraying tube (1) with a smaller cross-section in a direction parallel to the inner wall of the paint spraying tube (1). The connecting plate (108) constitutes part of the installation structure. A scraper (1081) is fixed on the side of the connecting plate (108) close to the connecting frame (103). The scraper (1081) is positioned facing the inner wall of the paint spraying tube (1) and is in contact with its surface.

5. A painting device with paint recycling and reuse capability according to claim 4, characterized in that, The connecting plate (108) has an installation groove (1082) on one end face away from the connecting frame (103). A sliding seat (1083) that can be reciprocated along its length is slidably connected in the installation groove (1082). A telescopic rod (1084) is fixed on the sliding seat (1083), and an installation plate (1085) is fixed at the output end of the telescopic rod (1084).

6. A painting device with paint recycling and reuse capability according to claim 5, characterized in that, Mounting plate one (1085) is rotatably connected to mounting plate two (1086) on the side away from telescopic rod (1084). Mounting plate two (1086) is fixed with motor one (1087). The output end of motor one (1087) passes through mounting plate two (1086) and is fixedly connected to mounting plate one (1085). Mounting plate three (1088) is also fixed on mounting plate two (1086) and mounted plate three (1088) is arranged obliquely upward. Mounting plate three (1088) is fixed with motor two (1089) on its side wall. The output end of motor two (1089) is fixedly connected to nozzle (109).

7. A painting device with paint recycling and reuse capability according to claim 4, characterized in that, The paint supply assembly includes a paint channel (110), a paint box (112), and a pump body (113). A hollow tubular paint channel (110) is vertically fixed above the end of the connecting plate (108) near the connecting frame (103). A flexible hose (111) is adapted to be installed inside the paint channel (110). One end of the flexible hose (111) passes through the hollow cavity of the connecting plate (108) and the telescopic rod (1084), and the other end is fixedly connected to the input end of the nozzle (109). A paint box (112) is fixedly installed on the outer wall of the paint channel (110), and a pump body (113) is fixedly installed inside the paint box (112). The pump body (113) is fixedly connected to the top of the paint channel (110) through a delivery pipeline and is interconnected with it.

8. A spray painting device with paint recycling and reuse capability according to claim 1, characterized in that, A ring-shaped support frame (115) is fixed coaxially above the paint spraying tube (1). An end cap (114) that is clearance-fitted with the paint spraying tube (1) is fixedly installed on the inner wall of the support frame (115). Several air holes (1141) are opened on the end cap (114). A motor three (116) is fixedly installed at the center of the top of the end cover (114). A telescopic mechanism (117) is fixedly installed on the top of the motor three (116). The bottom of the telescopic mechanism (117) is in contact with the ground. The output end of the motor three (116) is rotatably connected to the center of the end cover (114).

9. A spray painting device with paint recycling and reuse capability according to claim 4, characterized in that, The blower assembly (2) is sealed and fixedly connected to the other end of the connecting plate (108) away from the connecting frame (103); the blower assembly (2) includes a support ring (201) coaxially arranged with the paint spraying tube (1), and a number of mounting brackets (202) are arranged horizontally along the center circumference of the inner wall of the support ring (201). Each of the mounting brackets (202) is fixed with a fan (203) arranged vertically. The output end of the fan (203) is set towards the through hole (1021) at the bottom of the paint spraying tube (1), and the fan (203) has a bidirectional blowing function.

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