A clean type plastic spraying device

Abstract

The utility model discloses a kind of clean type plastic spraying devices, belong to plastic spraying device technical field, it includes: plastic spraying box, both sides inside of plastic spraying box are provided with fixed rotating assembly, fixed rotating assembly includes: shaft, one end of shaft is fixedly installed with fixed plate, one side of fixed plate is fixedly installed with two groups of air cylinders, the output end of two groups of air cylinders is fixedly installed with connecting plate, the bottom of one side of connecting plate is fixedly installed with tubular plate, powder can be evenly sprayed on the surface of rotating workpiece, so that hot air is evenly blown to the surface of workpiece, accelerates powder coating solidification, improves coating adhesion, by making brush plate so that the residual powder on the surface of workpiece can be cleaned, and the scattered powder is extracted from the inside of plastic spraying box by powder outlet pipe, realize powder recycling, can firmly fix different specifications of workpiece, and make the fixed rotating assembly can adapt to a variety of specifications of tubular workpiece. Without replacing special fixing clamp for different size workpieces.

Description

Technical Field

[0001] This utility model relates to the field of powder coating equipment technology, and in particular to a clean powder coating equipment. Background Technology

[0002] In industrial production, powder coating, as a highly efficient surface treatment technology, is widely used in metal products, furniture, automotive parts, and other fields. It involves spraying plastic powder onto the surface of a workpiece and allowing it to cure to form a coating, thus protecting and decorating the workpiece. However, existing powder coating equipment still faces many problems in practical applications, failing to meet the demands for efficient, high-quality, and environmentally friendly production. Traditional powder coating equipment often features fixed or limited-adjustment spray gun positions, preventing flexible horizontal movement and resulting in uneven powder coating. This is especially problematic for rotating workpieces, where localized areas of excessively thick or thin coatings can occur, affecting product quality. Furthermore, the drying process often lacks specific design, leading to uneven hot air distribution and inconsistent powder coating curing speeds, resulting in poor coating adhesion and reduced workpiece lifespan. Regarding workpiece fixation, existing equipment suffers from poor versatility, typically only adapting to specific workpiece specifications. For tubular workpieces, secure fixation is difficult; during the powder coating process, the impact of the high-pressure spray gun or the workpiece's own weight can easily cause displacement or vibration, further exacerbating the uneven coating problem. To process workpieces of different sizes, frequent changes of fixtures are required, which not only increases the cost of equipment use but also prolongs changeover time, seriously affecting production efficiency and making it unsuitable for multi-variety, small-batch production scenarios. In addition, the recycling rate of excess powder generated during the powder coating process is low, and a large amount of scattered powder accumulates in the powder coating box, which not only causes serious waste of raw materials and increases production costs but also requires regular manual cleaning, which is time-consuming and labor-intensive. Therefore, we propose a clean powder coating device to solve this problem. Utility Model Content

[0003] The purpose of this invention is to provide a clean powder coating device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A clean powder coating device includes: a powder coating box, with fixed rotating assemblies installed inside both sides of the powder coating box. Each fixed rotating assembly includes: a rotating shaft; a fixed plate is fixedly mounted at one end of the rotating shaft; two sets of cylinders are fixedly mounted on one side of the fixed plate; a connecting plate is fixedly mounted at the output ends of the two sets of cylinders; a tubular plate is fixedly mounted at the bottom of one side of the connecting plate; a threaded rod is threadedly connected to the top of the connecting plate; and a tubular clamp is rotatably mounted at the bottom of the threaded rod, the tubular clamp fitting to the tubular plate. The powder coating box... The internal structure includes a powder coating assembly, which comprises a lead screw and a powder storage box. A short pipe is fixedly installed on one side of the powder storage box, and a connecting pipe is provided on one side of the short pipe. A flexible hose is fixedly installed at the bottom of the connecting pipe. Threaded blocks one and two are threadedly connected to the outer side of the lead screw. Connectors and brush plates are respectively provided at the bottom of threaded blocks one and two. The flexible hose is fixedly connected to the connector. A powder box is fixedly installed at the bottom of the connector. Multiple high-pressure spray guns are fixedly installed at the bottom of the powder box. The flexible hose is fixedly connected to the connector.

[0005] Preferably, a drying assembly is provided on one side of the powder coating box. The drying assembly includes a heating box, which is fixedly installed on one side of the powder coating box. An air pump is fixedly installed on the top of the heating box. Two sets of heating plates are provided inside the heating box. An air outlet pipe is fixedly installed at the bottom of the heating box. One end of the air outlet pipe extends into the interior of the powder coating box, and an air outlet cover is fixedly installed at one end of the air outlet pipe.

[0006] Preferably, the two sets of rotating shafts are rotatably installed inside the two sides of the powder coating box, and gear two is fixedly installed on the outer side of each set of rotating shafts. Gear one is rotatably installed on both sides of the powder coating box. The two sets of gear one mesh with the corresponding gear two. Motor one is fixedly installed on both sides of the powder coating box, and the output shafts of the two sets of motor one are fixedly connected to the corresponding gear one.

[0007] Preferably, the lead screw is rotatably mounted on the inner walls of both sides of the powder coating box, and a second motor is fixedly mounted on one side of the powder coating box. The output shaft of the second motor is fixedly connected to the lead screw. Electric push rods are fixedly mounted at the bottom of both the first and second threaded blocks. The output ends of the two sets of electric push rods are fixedly connected to the connector and the brush plate, respectively.

[0008] Preferably, a powder outlet pipe is fixedly installed on one side of the bottom of the powder coating box, and a powder extraction pump one and a powder extraction pump two are fixedly installed at one end of the short pipe and the powder outlet pipe, respectively. One end of the powder extraction pump one is fixedly connected to the connecting pipe, and the powder storage box is fixedly installed on the top of the powder coating box.

[0009] Preferably, a fixing block is fixedly installed on the top of each of the threaded blocks, and a limit rod is slidably installed inside the fixing block. The two ends of the limit rod are fixedly connected to the inner walls of both sides of the powder coating box. Two sets of telescopic cylinders are fixedly installed on one side of each of the two sets of fixing plates. One end of the two sets of telescopic cylinders on the same side is fixedly connected to the corresponding connecting plate. A glass window is rotatably installed on one side of the powder coating box.

[0010] Preferably, the aforementioned.

[0011] In this utility model, a cleaning-type powder coating device is provided, which includes a powder coating component and a drying component. Motor 2 drives a lead screw to rotate, causing threaded blocks 1 and 2 to move horizontally along the lead screw. A limit rod ensures smooth movement of the threaded blocks. An electric push rod pushes the connector head down to a suitable height. A powder pump 1 transports powder from the powder storage box to the powder box through a short pipe, connecting pipe, and flexible hose. Finally, multiple high-pressure spray guns evenly spray the powder onto the surface of the rotating workpiece. Two heating plates in the heating chamber heat the air, and an air pump delivers the hot air to the air outlet hood through the air outlet pipe. The hot air is evenly blown onto the workpiece surface, accelerating the curing of the powder coating and improving its adhesion. The powder coating component allows the high-pressure spray guns to move horizontally left and right, evenly spraying powder onto the rotating workpiece surface. The drying component ensures that hot air is evenly blown onto the workpiece surface, accelerating the curing of the powder coating and improving its adhesion. A brush plate cleans residual powder from the workpiece surface, and a powder outlet pipe extracts scattered powder from inside the powder coating box, achieving powder recycling and reuse. This utility model discloses a clean powder coating device. A fixed rotating assembly is installed. The workpiece to be powder coated (such as a tubular part) is placed on two sets of tubular plates. Rotating the threaded rod causes the tubular clamping plate to move downwards, clamping and fixing the workpiece in place. Through the meshing transmission of gear one and gear two, the rotating shaft drives the fixed plate and the workpiece to rotate synchronously, achieving angle adjustment for uniform multi-sided powder coating of the workpiece. This forms an upper and lower clamping structure with the tubular plates, firmly fixing workpieces of different specifications. It prevents the workpiece from shifting due to the impact of the high-pressure spray gun or its own weight during the powder coating process. Furthermore, the rotation of the workpiece ensures that the powder sprayed from the high-pressure spray gun evenly covers all surfaces of the workpiece. The fixed rotating assembly can adapt to various sizes of tubular workpieces. There is no need to change special fixing fixtures for workpieces of different sizes, reducing equipment operating costs and changeover time, and enhancing the versatility and flexibility of the device in different production scenarios. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of a clean powder coating device proposed in this utility model; Figure 2 This is a cross-sectional view of a clean powder coating device proposed in this utility model; Figure 3 This is a schematic diagram of the fixed-rotation component structure proposed in this utility model; Figure 4 This is a schematic diagram of the powder coating component structure proposed in this utility model; Figure 5 This is a schematic diagram of the drying component structure proposed in this utility model.

[0013] In the diagram: 1. Powder coating box; 2. Fixed rotating assembly; 201. Gear 1; 202. Gear 2; 203. Rotating shaft; 204. Fixing plate; 205. Connecting plate; 206. Threaded rod; 207. Tubular clamp; 208. Tubular plate; 209. Cylinder; 3. Powder coating assembly; 301. Powder storage box; 302. Connecting pipe; 303. Powder pump; 304. Flexible hose; 305. Threaded block 1; 306. Lead screw; 307. Connector; 308. Powder box; 309. High-pressure spray gun; 310. Brush plate; 311. Electric push rod; 4. Drying assembly; 401. Air pump; 402. Heating box; 403. Heating plate; 404. Air outlet pipe; 405. Air outlet hood; 5. Powder outlet pipe; 6. Glass window. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Reference Figure 1-5A clean powder coating device includes: a powder coating box 1, with fixed rotating components 2 installed inside both sides of the powder coating box 1. Each fixed rotating component 2 includes: a rotating shaft 203, a fixed plate 204 fixedly mounted at one end of the rotating shaft 203, two sets of cylinders 209 fixedly mounted on one side of the fixed plate 204, a connecting plate 205 fixedly mounted at the output end of the two sets of cylinders 209, a tubular plate 208 fixedly mounted at the bottom of one side of the connecting plate 205, a threaded rod 206 threadedly connected to the top of the connecting plate 205, and a tubular clamping plate 207 rotatably mounted at the bottom of the threaded rod 206, the tubular clamping plate 207 being adapted to the tubular plate 208. A powder coating assembly 3 is installed inside the powder coating box 1 for powder coating. Component 3 includes: a lead screw 306 and a powder storage box 301. A short pipe is fixedly installed on one side of the powder storage box 301, and a connecting pipe 302 is provided on one side of the short pipe. A flexible hose 304 is fixedly installed at the bottom of the connecting pipe 302. Threaded block 1 305 and threaded block 2 are threadedly connected to the outside of the lead screw 306. Threaded block 1 305 and threaded block 2 are fixedly connected. Connector 307 and brush plate 310 are respectively provided at the bottom of threaded block 1 305 and threaded block 2. Flexible hose 304 is fixedly connected to connector 307. Powder box 308 is fixedly installed at the bottom of connector 307. Multiple high-pressure spray guns 309 are fixedly installed at the bottom of powder box 308. Flexible hose 304 is fixedly connected to connector 307.

[0016] In this embodiment, a drying assembly 4 is provided on one side of the powder coating box 1. The drying assembly 4 includes: a heating box 402, which is fixedly installed on one side of the powder coating box 1. An air pump 401 is fixedly installed on the top of the heating box 402. Two sets of heating plates 403 are provided inside the heating box 402. An air outlet pipe 404 is fixedly installed at the bottom of the heating box 402. One end of the air outlet pipe 404 extends into the interior of the powder coating box 1. An air outlet cover 405 is fixedly installed at one end of the air outlet pipe 404 to facilitate drying of the fixed powder-coated tubular object. Two sets of rotating shafts 203 are rotatably installed inside the two sides of the powder coating box 1. Gear 202 is fixedly installed on the outer side of each of the two sets of rotating shafts 203. Gear 1 201 is rotatably installed on both sides of the powder coating box 1. The two sets of gear 1 201 mesh with the corresponding gear 2 202. Motor 1 is fixedly installed on both sides of the powder coating box 1. The output shafts of the two sets of motor 1 are fixedly connected to the corresponding gear 1 201 to facilitate the rotation of the tubular object.

[0017] In this embodiment, the lead screw 306 is rotatably mounted on the inner walls of both sides of the powder coating box 1. A second motor is fixedly mounted on one side of the powder coating box 1, and the output shaft of the second motor is fixedly connected to the lead screw 306. Electric push rods 311 are fixedly mounted on the bottom of both the first threaded block 305 and the second threaded block. The output ends of the two sets of electric push rods 311 are fixedly connected to the connector 307 and the brush plate 310, respectively, facilitating cleaning and powder coating of tubular objects. A powder outlet pipe 5 is fixedly mounted on the bottom of one side of the powder coating box 1. A powder suction pump 303-1 and a powder suction pump 303-2 are fixedly mounted on one end of the short pipe and the powder outlet pipe 5, respectively. One end of the powder suction pump 303-1 is connected to the connector 307. Pipe 302 is fixedly connected, and powder storage box 301 is fixedly installed on the top of powder coating box 1 to facilitate the recycling and powder coating of powder coating powder. Fixed blocks are fixedly installed on the top of threaded block 305. Limiting rods are slidably installed inside the fixed blocks. The two ends of the limiting rods are fixedly connected to the inner walls of both sides of powder coating box 1. Two sets of telescopic cylinders are fixedly installed on one side of the two sets of fixed plates 204. One end of the two sets of telescopic cylinders on the same side is fixedly connected to the corresponding connecting plate 205. A glass window 6 is rotatably installed on one side of powder coating box 1 to facilitate the stable movement of threaded block 305 and threaded block 2, and to facilitate the stable movement of connecting plate 205.

[0018] In this embodiment, during use, the workpiece to be powder coated (such as a tubular part) is placed on two sets of tubular plates 208. The threaded rod 206 is rotated to drive the tubular clamping plate 207 to move downward, which, together with the tubular plates 208, clamps and fixes the workpiece. The telescopic cylinder extends and retracts synchronously with the connecting plate 205 to help stabilize the workpiece. Two sets of motors are started, and their output shafts drive gear 1 201 to rotate. Through the meshing transmission of gear 1 201 and gear 2 202, the rotating shaft 203 drives the fixing plate 204 and the workpiece to rotate synchronously, realizing the angle adjustment of the multi-sided uniform powder coating of the workpiece. Motor 2 drives the lead screw 306 to rotate, driving threaded block 1 305 and threaded block 2 to move horizontally along the lead screw 306. The limit rod ensures that the threaded blocks move smoothly. Electric push rod 311 pushes connector 307 down to a suitable height. Powder pump 303 transports powder from powder storage box 301 through short pipe, connecting pipe 302, and hose 304 to powder box 308. Finally, it is evenly sprayed onto the rotating workpiece surface through multiple sets of high-pressure spray guns 309. After powder coating is completed, two sets of heating plates 403 in heating box 402 are activated to heat the air. Air pump 401 delivers hot air to air outlet hood 405 through air outlet pipe 404. The hot air is evenly blown onto the workpiece surface to accelerate the curing of powder coating and improve coating adhesion. After powder coating and drying are completed, electric push rod 311 pushes brush plate 310 down to contact the workpiece. Motor 2 drives threaded block 2 to move, so that brush plate 310 cleans residual powder on the workpiece surface. During powder coating, excess powder falls to the bottom of powder coating box 1. Powder pump 303 extracts the scattered powder from the inside of powder coating box 1 through powder outlet pipe 5 to realize powder recycling and reuse.

[0019] The present invention provides a detailed description of a clean powder coating device. Specific embodiments have been used to illustrate the principle and implementation of the present invention. These embodiments are merely illustrative and are intended to aid in understanding the method and core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A clean-type powder coating device, characterized in that, include: A powder coating box (1) is provided with fixed rotating components (2) on both sides of the powder coating box (1). The fixed rotating components (2) include: a rotating shaft (203), a fixed plate (204) fixedly installed at one end of the rotating shaft (203), two sets of cylinders (209) fixedly installed on one side of the fixed plate (204), a connecting plate (205) fixedly installed at the output end of the two sets of cylinders (209), a tubular plate (208) fixedly installed at the bottom of one side of the connecting plate (205), a threaded rod (206) threadedly connected to the top of the connecting plate (205), and a tubular clamp (207) rotatably installed at the bottom of the threaded rod (206). The tubular clamp (207) is adapted to the tubular plate (208). The powder coating box (1) is provided with a powder coating assembly (3). The powder coating assembly (3) includes: Includes: a lead screw (306) and a powder storage box (301). A short pipe is fixedly installed on one side of the powder storage box (301), and a connecting pipe (302) is provided on one side of the short pipe. A flexible hose (304) is fixedly installed at the bottom of the connecting pipe (302). A threaded block one (305) and a threaded block two are threadedly connected to the outside of the lead screw (306). The threaded block one (305) and the threaded block two are fixedly connected. A connector (307) and a brush plate (310) are respectively provided at the bottom of the threaded block one (305) and the threaded block two. The flexible hose (304) is fixedly connected to the connector (307). A powder box (308) is fixedly installed at the bottom of the connector (307). Multiple sets of high-pressure spray guns (309) are fixedly installed at the bottom of the powder box (308). The flexible hose (304) is fixedly connected to the connector (307).

2. The clean-type powder coating device according to claim 1, characterized in that, A drying assembly (4) is provided on one side of the powder coating box (1). The drying assembly (4) includes a heating box (402), which is fixedly installed on one side of the powder coating box (1). An air pump (401) is fixedly installed on the top of the heating box (402). Two sets of heating plates (403) are provided inside the heating box (402). An air outlet pipe (404) is fixedly installed at the bottom of the heating box (402). One end of the air outlet pipe (404) extends into the interior of the powder coating box (1), and an air outlet cover (405) is fixedly installed at one end of the air outlet pipe (404).

3. The clean-type powder coating device according to claim 1, characterized in that, Two sets of rotating shafts (203) are rotatably installed inside the two sides of the powder coating box (1). Gear 2 (202) is fixedly installed on the outer side of both sets of rotating shafts (203). Gear 1 (201) is rotatably installed on both sides of the powder coating box (1). Gear 1 (201) meshes with the corresponding gear 2 (202) in both sets. Motor 1 is fixedly installed on both sides of the powder coating box (1). The output shafts of the two sets of motor 1 are fixedly connected to the corresponding gear 1 (201) in both sets.

4. A clean-type powder coating device according to claim 1, characterized in that, The lead screw (306) is rotatably mounted on the inner walls of both sides of the powder coating box (1). A second motor is fixedly mounted on one side of the powder coating box (1). The output shaft of the second motor is fixedly connected to the lead screw (306). Electric push rods (311) are fixedly mounted on the bottom of both the first threaded block (305) and the second threaded block. The output ends of the two sets of electric push rods (311) are fixedly connected to the connector (307) and the brush plate (310) respectively.

5. A clean-type powder coating device according to claim 1, characterized in that, A powder outlet pipe (5) is fixedly installed on one side of the bottom of the powder coating box (1). A powder pump (303) 1 and a powder pump (303) 2 are fixedly installed at one end of the short pipe and the powder outlet pipe (5), respectively. One end of the powder pump (303) 1 is fixedly connected to the connecting pipe (302). The powder storage box (301) is fixedly installed on the top of the powder coating box (1).

6. A clean-type powder coating device according to claim 1, characterized in that, The top of each threaded block (305) is fixedly installed with a fixing block. The inside of the fixing block is slidably installed with a limit rod. The two ends of the limit rod are fixedly connected to the inner walls of both sides of the powder coating box (1). Two sets of telescopic cylinders are fixedly installed on one side of each of the two sets of fixing plates (204). One end of the two sets of telescopic cylinders on the same side is fixedly connected to the corresponding connecting plate (205). A glass window (6) is rotatably installed on one side of the powder coating box (1).

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