Paint recovery device
By designing a rotary centrifugal filtration and stirring process in the paint recycling device, the problem of impurities in paint recycling was solved, the utilization rate of paint was improved, and the production cost was reduced.
Patent Information
- Application Number
- CN202423271363.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing paint recycling devices are prone to contamination by solder joints or dust during the recycling process, resulting in low paint utilization and increased recycling costs.
A paint recycling device was designed, comprising a mounting frame, a paint recycling structure, a filter cylinder, a scraper screw, and a stirring frame. It achieves efficient paint recycling and impurity removal through rotary centrifugal filtration and stirring.
It achieves efficient paint recycling and effective removal of impurities, improving paint utilization and reducing production costs.
Smart Images

Figure CN223931720U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of paint recycling technology, specifically to a paint recycling device. Background Technology
[0002] In the construction and machining industries, it is often necessary to spray anti-rust paint onto the surface of metal workpieces. Although using a paint spray gun can spray the paint evenly, conveniently, and quickly onto the workpiece, the utilization rate of the paint is low. Only 30% to 40% of the sprayed paint actually adheres to the workpiece. In other words, 60% to 70% of the atomized paint actually diffuses into the air, resulting in a large waste of resources. Chinese patent disclosure (publication number CN108722754B) discloses a paint recovery device, comprising a horizontally arranged roller, a sponge wrapped around the roller, a mesh screen, a paint thinner storage tank located on the upper left of the roller, a scraper located below the roller, and a first recovery tank located below the scraper. The sponge includes a sponge layer and a non-woven fabric layer. The mesh screen, from top to bottom, includes a third inclined section above a second inclined section, a third transition section outside a second transition section, and a third drooping section to the right of a second drooping section. An iron plate is fixed to the lower end of the third drooping section. A dripping device is also provided at the bottom of the paint thinner storage tank. The second recovery tank is located directly below the iron plate, and an electromagnet is located below the second recovery tank. This paint recovery device can effectively recover oversprayed paint, with minimal paint waste, high paint utilization, and the recovered paint can be used without impurity removal, effectively reducing production costs. This patented technology solves the problem of the traditional water curtain type paint mist purification device commonly used in the painting process of various industries. This device uses a water pump to create a jet-like overflow through water pipes, a water curtain plate, and spray nozzles, forming a waterfall-like water mist. When the sprayed paint mist collides with the water mist, it is absorbed and washed into a wastewater tank for storage. While the atomized paint is recycled, it contains a large amount of water. Removing this water requires significant manpower, resources, and material costs. If paint thinner is used instead of water, it faces the problem of increased recycling costs because paint thinners are typically ester or ketone solvents, which are volatile. The atomization process further accelerates this evaporation. Furthermore, 40% to 70% of the paint thinner evaporates, and its cost is far higher than water.
[0003] However, in existing technologies, paint is easily contaminated with particulate matter such as weld points or dust during recycling, so it is necessary to solve the problem of filtering particulate impurities in paint during recycling.
[0004] Therefore, those skilled in the art have provided a paint recycling device to solve the problems mentioned in the background art. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides:
[0006] A paint recycling device includes: a mounting frame; the mounting frame is equipped with a paint recycling structure for filtering impurities during paint recycling, the paint recycling structure includes a storage tank fixedly installed on the outer wall of the mounting frame, a recycling disc rotatably installed inside the storage tank, a connecting pipe penetrating the top of the recycling disc, and a sealing cylinder penetrating the top of the connecting pipe; a transmission disc rotatably installed inside the sealing cylinder, a filter cylinder for filtering paint residue is integrally fixed on the outer wall of the transmission disc, and a recycling pipe rotatably installed inside the transmission disc along the sealing cylinder.
[0007] Preferably, the top of the recycling pipe is integrally connected to a recycling hopper.
[0008] The recycling pipe collects and recycles the paint through the recycling hopper.
[0009] Preferably, a load-bearing cylinder is fixedly mounted on the outer wall of the transmission disc, and a spur gear one is fixedly mounted on the outer wall of the load-bearing cylinder. The spur gear one meshes with a spur gear two, and the spur gear two is connected to a servo motor.
[0010] The servo motor is fixedly mounted on the surface of the mounting bracket, and the servo motor is used to actively drive the rotation of the spur gear.
[0011] Preferably, a helical gear is fixed to the outer side of the spur gear, and a helical gear ring meshes with the bottom of the helical gear. The helical gear ring is fixedly installed on the surface of the recycling disc.
[0012] The helical gear and the helical ring gear are meshed.
[0013] Preferably, the storage tank is sealed with a discharge pipe at the bottom, and a solenoid valve is installed on the outside of the discharge pipe.
[0014] Preferably, a slag scraping spiral is tightly attached to the inside of the filter cylinder, the slag scraping spiral is fixedly installed on the inner wall of the sealed cylinder, and one end of the sealed cylinder is integrally connected to a slag discharge pipe.
[0015] Preferably, the storage tank is equipped with a stirring rack inside to prevent the paint from solidifying, and the stirring rack is fixedly installed on the bottom wall of the recycling pan.
[0016] The mounting bracket is fixedly fitted with a load-bearing plate on its outer wall, and a controller is installed on the outer wall of the load-bearing plate.
[0017] The bottom wall of the mounting bracket is fixed with several support feet.
[0018] The technical effects and advantages of this utility model are as follows:
[0019] 1. In this utility model, during the paint collection and processing process, the paint is first collected through a recovery hopper into the recovery pipe, and then guided into the inside of a filter cylinder. Under the rotation of the filter cylinder, the paint undergoes a centrifugal filtration process, with the pure portion being discharged into the sealed cylinder and finally flowing into a storage tank for storage through a connecting pipe, thus achieving effective paint recovery. A motor drives a second spur gear to rotate, which in turn meshes with a first spur gear, driving its rotation. The first spur gear is connected to a transmission disc through a load-bearing cylinder, ultimately driving the filter cylinder to rotate within the sealed cylinder, achieving centrifugal filtration and discharge of the paint.
[0020] 2. In this utility model, while the filter cylinder rotates, its inner wall interacts with the scraping spiral, so that the residue generated during the filtration process can be pushed to the slag discharge pipe and discharged along the scraping spiral, effectively cleaning the inside of the filter cylinder. The rotation of the spur gear also drives the rotation of the helical gear. The helical gear meshes with the helical gear ring and drives its rotation, which in turn drives the recovery disc to rotate in the storage tank. The recovered paint is then stirred by the stirring rack. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of a paint recycling device provided in this application;
[0022] Figure 2 This is a front structural diagram of a paint recycling device provided in this application;
[0023] Figure 3 This is a schematic diagram of the paint recycling structure in a paint recycling device provided in this application;
[0024] Figure 4 This is a schematic diagram of the slag scraper in a paint recycling device provided in this application;
[0025] Figure 5 This is a schematic diagram of the filter cartridge in a paint recycling device provided in this application.
[0026] In the picture:
[0027] 1. Mounting bracket;
[0028] 2. Paint recycling structure; 201. Sealing cylinder; 202. Transmission disc; 203. Recycling pipe; 204. Recycling hopper; 205. Load-bearing cylinder; 206. Filter cylinder; 207. Spur gear one; 208. Spur gear two; 209. Servo motor; 210. Helical gear; 211. Helical gear ring; 212. Connecting pipe; 213. Recycling disc; 214. Storage tank; 215. Discharge pipe; 216. Solenoid valve; 217. Stirring rack; 218. Slag scraper screw; 219. Slag discharge pipe;
[0029] 3. Load-bearing plate; 4. Controller; 5. Support legs. Detailed Implementation
[0030] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.
[0031] For examples, please refer to Figures 1-5 In this embodiment, a paint recycling device is provided, including: a mounting frame 1; the mounting frame 1 is equipped with a paint recycling structure 2 for filtering impurities during paint recycling, the paint recycling structure 2 includes a storage tank 214 fixedly installed on the outer wall of the mounting frame 1, a recycling disc 213 is rotatably installed inside the storage tank 214, a connecting pipe 212 is connected through the top of the recycling disc 213, and a sealing cylinder 201 is connected through the top of the connecting pipe 212;
[0032] A transmission disc 202 is rotatably mounted inside the sealed cylinder 201. A filter cylinder 206 for filtering paint residue is integrally fixed to the outer wall of the transmission disc 202. A recovery pipe 203 is rotatably mounted along the sealed edge inside the transmission disc 202. A recovery hopper 204 is integrally connected to the top of the recovery pipe 203. The paint is recovered and collected through the recovery hopper 204 via the recovery pipe 203. A load-bearing cylinder 205 is integrally fixed to the outer wall of the transmission disc 202. A spur gear 207 is fixedly assembled to the outer wall of the load-bearing cylinder 205. The spur gear 207 meshes with a spur gear 208. The spur gear 208 is connected to a servo motor 209.
[0033] The servo motor 209 is fixedly mounted on the surface of the mounting bracket 1, and the servo motor 209 is used to actively drive the rotation of the spur gear 208. A helical gear 210 is fixed to the outside of the spur gear 207, and a helical gear ring 211 meshes with the bottom of the helical gear 210. The helical gear ring 211 is fixedly mounted on the surface of the recycling tray 213. The helical gear 210 and the helical gear ring 211 are meshed. A discharge pipe 215 is sealed to the bottom of the storage tank 214, and a solenoid valve 216 is installed on the outside of the discharge pipe 215.
[0034] The filter cylinder 206 has a scraper spiral 218 tightly attached inside, which is fixedly installed on the inner wall of the sealing cylinder 201. One end of the sealing cylinder 201 is integrally connected to a discharge pipe 219. The storage tank 214 has a stirring rack 217 inside to prevent paint from solidifying. The stirring rack 217 is fixedly installed on the bottom wall of the recovery tray 213. A load-bearing plate 3 is fixedly mounted on the outer wall of the mounting frame 1, and a controller 4 is installed on the outer wall of the load-bearing plate 3. Several support feet 5 are fixedly installed on the bottom wall of the mounting frame 1.
[0035] According to the above embodiments, the working principle of this invention is as follows:
[0036] When collecting and processing paint, the paint is collected through the recycling hopper 204 into the inside of the recycling pipe 203. The paint is then discharged into the inside of the filter cylinder 206 through the recycling pipe 203 connected to the recycling hopper 204. The rotating filter cylinder 206 centrifuges the paint and filters it into the inside of the sealing cylinder 201. The paint is then discharged into the storage tank 214 through the connecting pipe 212 connected to the sealing cylinder 201, thus completing the paint recycling process.
[0037] When the filter cartridge 206 is rotated, the servo motor 209 is started, which drives the second spur gear 208 to rotate. The second spur gear 208 rotates and meshes with the first spur gear 207 to rotate. The first spur gear 207 drives the transmission disc 202 to rotate through the load-bearing cylinder 205. The transmission disc 202 drives the filter cartridge 206 to rotate inside the sealing cylinder 201, so that the paint inside can be centrifugally discharged.
[0038] The inner wall of the rotating filter cylinder 206 rotates along the scraping spiral 218, so that the filtered residue is discharged outward through the scraping spiral 218 and the slag discharge pipe 219.
[0039] The rotating spur gear 207 simultaneously drives the helical gear 210 to rotate. The rotating helical gear 210 meshes with the helical gear ring 211, causing the helical gear ring 211 to drive the recycling disc 213 to rotate inside the storage tank 214. The rotating recycling disc 213 then drives the stirring rack 217 to rotate inside the storage tank 214, thus stirring the collected paint and preventing it from solidifying.
[0040] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0041] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.
Claims
1. A paint recycling device, characterized in that, include: Mounting frame (1); The mounting frame (1) is equipped with a paint recycling structure (2) for filtering impurities during paint recycling. The paint recycling structure (2) includes a storage tank (214) fixedly installed on the outer wall of the mounting frame (1). A recycling disc (213) is rotatably installed inside the storage tank (214). A connecting pipe (212) is connected through the top of the recycling disc (213). A sealing cylinder (201) is connected through the top of the connecting pipe (212). The transmission disc (202) is rotatably installed inside the sealing cylinder (201). A filter cylinder (206) for filtering paint residue is fixed on the outer wall of the transmission disc (202). A recovery pipe (203) is rotatably installed along the sealing edge inside the transmission disc (202).
2. The paint recycling device according to claim 1, characterized in that, The top of the recycling pipe (203) is integrally connected to the recycling hopper (204).
3. The paint recycling device according to claim 1, characterized in that, The transmission disc (202) has a load-bearing cylinder (205) fixedly attached to its outer wall. A spur gear (207) is fixedly mounted on the outer wall of the load-bearing cylinder (205). The spur gear (207) meshes with a spur gear (208). The spur gear (208) is connected to a servo motor (209).
4. A paint recycling device according to claim 3, characterized in that, The outer side of the spur gear (207) is fixed with a helical gear (210), and the bottom of the helical gear (210) is meshed with a helical gear ring (211), which is fixedly installed on the surface of the recycling disc (213).
5. A paint recycling device according to claim 1, characterized in that, The storage tank (214) is sealed at the bottom with a discharge pipe (215), and a solenoid valve (216) is installed on the outside of the discharge pipe (215).
6. A paint recycling device according to claim 1, characterized in that, The filter cylinder (206) is fitted with a scraper spiral (218) inside. The scraper spiral (218) is fixedly installed on the inner wall of the sealing cylinder (201), and one end of the sealing cylinder (201) is integrally connected to a slag discharge pipe (219).
7. A paint recycling device according to claim 4, characterized in that, The storage tank (214) is equipped with a stirring rack (217) to prevent the paint from solidifying and stirring. The stirring rack (217) is fixedly installed on the bottom wall of the recycling tray (213).
Citation Information
Patent Citations
A paint recycling device
CN108722754B