A powder coating iron filings removal device
By designing a powder coating iron filings removal device and employing alternating iron filings removal and cleaning components, the problem of incomplete iron filings removal in powder coating production was solved, improving production efficiency and coating quality, and ensuring production continuity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DE FU SHEN POWDER COATINGS CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-05-26
AI Technical Summary
In existing powder coating production processes, iron filings are difficult to remove effectively, leading to a decline in coating quality. This is especially true in electronic insulating powders, which affect withstand voltage testing. Furthermore, existing equipment requires regular shutdowns for cleaning, impacting work efficiency.
A powder coating iron filings removal device was designed, including a cyclone separator, an iron removal mechanism and a rotary screen. The device uses alternating iron removal components and cleaning components to achieve continuous iron filings removal. Iron filings are adsorbed by alternating sleeves and annular magnets and collected into a collection bin by the cleaning component.
This achieves continuous removal of iron filings, improves work efficiency, avoids periodic shutdowns for cleaning, and ensures coating quality and production continuity.
Smart Images
Figure CN224271491U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coating production, and specifically designs a powder coating iron filings removal device. Background Technology
[0002] During the powder coating process, iron filings are easily generated due to prolonged friction between high-hardness fillers and equipment components. If these iron filings are not cleaned from the coating in time, they will form infusible micro-pits in the coating film, severely affecting its chemical resistance. The harm caused by iron filings is even more pronounced in electronic insulating powders, as they can cause the film to puncture during withstand voltage tests, leading to product defects.
[0003] The existing cyclone separator for powder coating grinding mills uses a strong induced draft to draw the pulverized powder particles into the separator during operation, and then screens them through a rotary screen. However, this process lacks an effective device for removing iron filings, resulting in the inability to remove iron filings and affecting the quality of subsequent products. Furthermore, the existing drawer-type iron separator requires periodic shutdowns to clean the magnets that are adsorbed, leading to discontinuous operation and severely impacting work efficiency. Utility Model Content
[0004] The purpose of this invention is to solve the problem of discontinuous iron filings handling during the production of coating powder.
[0005] The present invention adopts the following technical solution:
[0006] A powder coating iron filings removal device includes a cyclone separator, a control valve, an iron removal mechanism, and a rotary screen. The inlet of the cyclone separator is connected to the output end of a grinding mill. The output end of the cyclone separator is connected to the input end of the iron removal mechanism via a conveying pipe. A control valve is also installed on the conveying pipe. The output end of the iron removal mechanism is connected to the input end of the rotary screen. The iron removal mechanism includes a body, an alternating iron removal assembly, a cleaning assembly, a feed pipe, a discharge pipe, and a collection bin. The upper and lower parts of the body are connected to the feed pipe and the discharge pipe, respectively. The alternating iron removal assembly is installed inside the body. The cleaning assembly is also installed on the upper part of the body. Two collection bins are also installed on the bottom of the body.
[0007] Preferably, each collection chamber is located directly below the cleaning component, and each collection chamber also has an outlet.
[0008] Preferably, the feed pipe and the discharge pipe are coaxially installed, and two sliding grooves are also provided on the inner bottom surface of the machine body. The two sliding grooves are vertically arranged and are respectively installed in conjunction with the alternating iron removal components.
[0009] Preferably, the alternating iron removal assembly includes a first iron removal sleeve, a second iron removal sleeve, a limiting block, and a telescopic electric cylinder. The first and second iron removal sleeves are respectively located on the upper part of their respective slide grooves. The upper and lower end faces of the first and second iron removal sleeves are respectively through the grooves. The limiting blocks are fixed at both ends of the bottom of the first and second iron removal sleeves. The limiting blocks are also located in the corresponding slide grooves. Two telescopic electric cylinders are also fixedly installed on the outside of the machine body. The telescopic end of each telescopic electric cylinder extends into the inside of the machine body and is fixedly connected to the outer wall of the corresponding first and second iron removal sleeves.
[0010] Preferably, the first and second iron removal sleeves are provided with a plurality of vertically arranged annular magnets inside, and a sealing ring is provided between adjacent annular magnets.
[0011] Preferably, each groove is further provided with an expansion section, the expansion section having a circular structure, and the diameter of each expansion section being the same as the diameter of the corresponding first iron removal sleeve and second iron removal sleeve.
[0012] Preferably, each expansion section also has a vertically formed iron filings unloading channel, and each iron filings unloading channel is connected to the corresponding collection bin.
[0013] Preferably, the upper part of the body is provided with two cleaning holes, and each cleaning hole is provided with a corresponding cleaning component.
[0014] Preferably, the cleaning assembly includes guide rods, a top plate, a cleaning electric cylinder, a lifting disc, and a cleaning head. Several vertical guide rods are distributed around the edge of each cleaning hole. The top of each guide rod is fixedly connected to the bottom of the top plate. The cleaning electric cylinder is installed on the upper part of the top plate. The lifting disc is movably installed on the guide rods, and the upper end face of the lifting disc is fixedly connected to the telescopic end of the cleaning electric cylinder. The cleaning head is fixedly installed on the bottom of the lifting disc.
[0015] The beneficial effects of this utility model are as follows:
[0016] The alternating iron removal components inside the machine body can continuously remove iron between the feed pipe and the discharge pipe. After the annular magnet inside the first or second iron removal sleeve adsorbs the iron filings in the powder, the cleaning component can send all the iron filings inside to the collection bin through the iron filings discharge channel. This eliminates the need to remove the first or second iron removal sleeve for separate cleaning, saving time and improving work efficiency. Attached Figure Description
[0017] Figure 1 This is a structural diagram of a powder coating iron filings removal device.
[0018] Figure 2 This is a three-dimensional structural diagram of the iron removal mechanism;
[0019] Figure 3 This is a schematic diagram of the internal structure of the iron removal mechanism;
[0020] Figure 4 This is another perspective view of the internal structure of the iron removal mechanism;
[0021] Figure 5 This is a front view schematic diagram of the iron removal mechanism;
[0022] Figure 6 This is a top view of the iron removal mechanism.
[0023] Figure 7 for Figure 5 Cross-sectional view along line AA;
[0024] Figure 8 for Figure 6 Cross-sectional view along line BB;
[0025] In the diagram: 1. Cyclone separator; 2. Control valve; 3. Iron removal mechanism; 4. Rotary screen; 5. Conveying pipe; 30. Machine body; 31. Alternating iron removal assembly; 32. Cleaning assembly; 33. Feed pipe; 34. Discharge pipe; 35. Collection bin; 6. Iron outlet; 7. Slide chute; 310. First iron removal sleeve; 311. Second iron removal sleeve; 312. Limiting block; 313. Telescopic electric cylinder; 8. Annular magnet; 9. Sealing ring; 10. Expansion section; 11. Iron chip unloading channel; 12. Cleaning hole; 320. Guide rod; 321. Top plate; 322. Cleaning electric cylinder; 323. Lifting disc; and 324. Detailed Implementation
[0026] 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.
[0027] Example 1:
[0028] Reference Figure 1-8A powder coating iron filings removal device includes a cyclone separator 1, a control valve 2, an iron removal mechanism 3, and a rotary screen 4. The inlet of the cyclone separator 1 is connected to the output end of a grinding mill. The output end of the cyclone separator 1 is connected to the input end of the iron removal mechanism 3 via a conveying pipe 5. The control valve 2 is also installed on the conveying pipe 5. The control valve 2 mainly controls the powder feeding speed to prevent the powder coating from feeding too fast, which would reduce the iron removal efficiency. The output end of the iron removal mechanism 3 is connected to the input end of the rotary screen 4. The iron removal mechanism 3 includes a body 30, an alternating iron removal component 31, a cleaning component 32, a feed pipe 33, a discharge pipe 34, and a collection bin 35. The upper and lower parts of the body 30 are connected to the feed pipe 33 and the discharge pipe 34, respectively. The alternating iron removal component 31 is installed inside the body 30. The cleaning component 32 is also installed on the upper part of the body 30. Two collection bins 35 are also installed at the bottom of the body 30. The collection bins 35 are mainly used to collect iron filings.
[0029] Each collection chamber 35 is located directly below the cleaning component 32, and each collection chamber 35 is also provided with an iron outlet 6 to facilitate the discharge of collected iron filings. Each cleaning component 32 corresponds to the first iron removal sleeve 310 and the second iron removal sleeve 311 respectively.
[0030] The feed pipe 33 and the discharge pipe 34 are coaxially installed, and there is a space between them. When the first iron removal sleeve 310 or the second iron removal sleeve 311 reaches the secondary space along the slide groove 7, a working area for powder iron removal is formed. That is, the powder enters the first iron removal sleeve 310 or the second iron removal sleeve 311 through the feed pipe 33, and the powder will adsorb iron filings in the powder. When the first iron removal sleeve 310 adsorbs, the second iron removal sleeve 311 is in the cleaning process. Two slide grooves 7 are also opened on the inner bottom surface of the machine body 30, and the two slide grooves 7 are vertically arranged. The two slide grooves 7 are respectively installed in conjunction with the alternating iron removal assembly 31.
[0031] The alternating iron removal assembly 31 includes a first iron removal sleeve 310, a second iron removal sleeve 311, a limiting block 312, and a telescopic electric cylinder 313. The first iron removal sleeve 310 and the second iron removal sleeve 311 are respectively located on the upper part of the corresponding slide groove 7. The upper and lower end faces of the first iron removal sleeve 310 and the second iron removal sleeve 311 are respectively through, and the limiting block 312 is fixed at both ends of the bottom of the first iron removal sleeve 310 and the second iron removal sleeve 311. The limiting block 312 is also located in the corresponding slide groove 7. Two telescopic electric cylinders 313 are also fixedly installed on the outside of the machine body 30. The telescopic end of each telescopic electric cylinder 313 extends into the inside of the machine body 30 and is fixedly connected to the outer wall of the corresponding first iron removal sleeve 310 and the second iron removal sleeve 311. Through the above technical solution, the first iron removal sleeve 310 and the second iron removal sleeve 311 will perform different processes under the action of the corresponding telescopic electric cylinder 313. The two will alternately perform iron removal operations. After adsorbing iron filings, they can be retracted to the expansion part 10 along the slide 7. At this time, the cleaning component 32 on its upper part is controlled to remove iron.
[0032] Alternating working principle:
[0033] When the first iron removal sleeve 310 reaches the area between the feed pipe 33 and the discharge pipe 34 under the action of the corresponding telescopic electric cylinder 313, the second iron removal sleeve 313 is located below the corresponding cleaning hole 12. When the powder inside the first iron removal sleeve 310 passes through, the annular magnet 8 adsorbs the iron filings in the powder. After a period of adsorption, under the action of the external controller, the control valve 2 is first closed, and then the first iron removal sleeve 310 returns to the area below the corresponding cleaning hole 12 along the slide 7. During this process, the second iron removal sleeve 311 reaches the area between the feed pipe 33 and the discharge pipe 34 along the slide 7. At this time, the control valve 2 is opened, and the second iron removal sleeve 311 adsorbs the powder, while the first iron removal sleeve 310 performs the cleaning operation.
[0034] The first iron removal sleeve 310 and the second iron removal sleeve 311 are provided with a number of vertically arranged annular magnets 8. The multiple annular magnets 8 can improve the efficiency of adsorbing iron filings. A sealing ring 9 is also provided between adjacent annular magnets 8. The sealing ring 9 mainly ensures that iron filings will not enter the gap between the annular magnets 8.
[0035] Each chute 7 is also provided with an expansion section 10, which is a circular structure with an internal concavity. The diameter of each expansion section 10 is the same as the diameter of the corresponding first iron removal sleeve 310 and second iron removal sleeve 311. Through the expansion section 10, a vertical iron filings discharge channel 11 is also provided inside each expansion section 10, and each iron filings discharge channel 11 is connected to the corresponding collection bin 35. After the first iron removal sleeve 310 and the second iron removal sleeve 311 arrive, under the action of the cleaning component 32, all the iron filings inside fall into the expansion section 10 and flow into the collection bin 35 through the iron filings discharge channel 11.
[0036] The upper part of the body 30 is also provided with two cleaning holes 12, and a cleaning component 32 is provided on each cleaning hole 12.
[0037] The cleaning assembly 32 includes guide rods 320, a top plate 321, a cleaning cylinder 322, a lifting disc 323, and a cleaning head 324. Several vertical guide rods 320 are distributed around the edge of each cleaning hole 12. The top of each guide rod 320 is fixedly connected to the bottom of the top plate 321. The cleaning cylinder 322 is installed on the upper part of the top plate 321. The lifting disc 323 is movably installed on the guide rods 320, and the upper end face of the lifting disc 323 is fixedly connected to the telescopic end of the cleaning cylinder 322. The cleaning head 324 is fixedly installed on the bottom of the lifting disc 323.
[0038] Cleaning principle: During cleaning, under the action of the cleaning cylinder 322, the lifting disc 323 will continuously move downward under the guidance of the guide rod 320. At this time, the lifting disc 323 will drive the bottom cleaning head 324 to pass through the cleaning hole 12 and then extend into the first iron removal sleeve 310 or the second iron removal sleeve 311 to clean the iron filings adsorbed on the annular magnet 8 inside the first iron removal sleeve 310 or the second iron removal sleeve 311 from top to bottom. During the cleaning process, the iron filings will fall into the expansion part 10 and be collected into the collection bin 35 through the iron filings unloading channel 11.
[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A powder coating iron filings removal device, characterized in that: The system includes a cyclone separator (1), a control valve (2), an iron removal mechanism (3), and a rotary screen (4). The inlet of the cyclone separator (1) is connected to the output end of the grinding mill. The output end of the cyclone separator (1) is connected to the input end of the iron removal mechanism (3) through a conveying pipe (5). The control valve (2) is also installed on the conveying pipe (5). The output end of the iron removal mechanism (3) is connected to the input end of the rotary screen (4). The iron removal mechanism (3) includes a machine body. (30), alternating iron removal assembly (31), cleaning assembly (32), feed pipe (33), discharge pipe (34) and collection bin (35), the upper and lower parts of the machine body (30) are respectively connected to the feed pipe (33) and the discharge pipe (34), the alternating iron removal assembly (31) is installed inside the machine body (30), the cleaning assembly (32) is also installed on the upper part of the machine body (30), and two collection bins (35) are also installed at the bottom of the machine body (30).
2. The powder coating iron filings removal device according to claim 1, characterized in that: Each collection chamber (35) is located directly below the cleaning component (32), and each collection chamber (35) also has an outlet (6).
3. The powder coating iron filings removal device according to claim 1, characterized in that: The feed pipe (33) and the discharge pipe (34) are coaxially installed. The bottom surface of the machine body (30) is also provided with two sliding grooves (7), and the two sliding grooves (7) are set vertically. The two sliding grooves (7) are respectively installed in conjunction with the alternating iron removal assembly (31).
4. The powder coating iron filings removal device according to claim 3, characterized in that: The alternating iron removal assembly (31) includes a first iron removal sleeve (310), a second iron removal sleeve (311), a limiting block (312), and a telescopic electric cylinder (313). The first iron removal sleeve (310) and the second iron removal sleeve (311) are respectively located on the upper part of the corresponding slide groove (7). The upper and lower end faces of the first iron removal sleeve (310) and the second iron removal sleeve (311) are respectively through, and the limiting block (312) is fixed at both ends of the bottom of the first iron removal sleeve (310) and the second iron removal sleeve (311). The limiting block (312) is also located in the corresponding slide groove (7). Two telescopic electric cylinders (313) are also fixedly installed on the outside of the machine body (30). The telescopic end of each telescopic electric cylinder (313) extends into the inside of the machine body (30) and is fixedly connected to the outer wall of the corresponding first iron removal sleeve (310) and the second iron removal sleeve (311).
5. The powder coating iron filings removal device according to claim 4, characterized in that: The first iron removal sleeve (310) and the second iron removal sleeve (311) are provided with a number of vertically arranged annular magnets (8), and a sealing ring (9) is provided between adjacent annular magnets (8).
6. The powder coating iron filings removal device according to claim 4, characterized in that: Each groove (7) is also provided with an expansion section (10), the expansion section (10) is a circular structure, and the diameter of each expansion section (10) is the same as the diameter of the corresponding first iron removal sleeve (310) and second iron removal sleeve (311).
7. The powder coating iron filings removal device according to claim 6, characterized in that: Each expansion section (10) also has a vertically opened iron filings unloading channel (11), and each iron filings unloading channel (11) is connected to the corresponding collection bin (35).
8. The powder coating iron filings removal device according to claim 1, characterized in that: The upper part of the body (30) is also provided with two cleaning holes (12), and each cleaning hole (12) is provided with a corresponding cleaning component (32).
9. The powder coating iron filings removal device according to claim 8, characterized in that: The cleaning assembly (32) includes a guide rod (320), a top plate (321), a cleaning electric cylinder (322), a lifting disc (323), and a cleaning head (324). Several vertical guide rods (320) are distributed around the edge of each cleaning hole (12). The top of each guide rod (320) is fixedly connected to the bottom of the top plate (321). The cleaning electric cylinder (322) is installed on the upper part of the top plate (321). The lifting disc (323) is movably installed on the guide rod (320), and the upper end face of the lifting disc (323) is fixedly connected to the telescopic end of the cleaning electric cylinder (322). The cleaning head (324) is fixedly installed at the bottom of the lifting disc (323).