Refining sieving device for thermosetting powder coating

Abstract

The utility model discloses a thermosetting powder coating fine sieving device which comprises a main body, a partition plate is welded in the main body, the bottom end of the partition plate is provided with a filter cartridge used for sieving thermosetting powder coating, and the top end of the main body is fixedly provided with a driving motor. A screening mechanism which is used for controlling the filter cartridge to rotate and is driven by a driving motor is arranged at the upper end of the partition plate, a supporting plate is fixedly mounted at the bottom end of the filter cartridge, and a control mechanism used for controlling the opening to be opened and closed is arranged on the supporting plate. The filter has the advantages that the driving rod rotates to drive the driving gear to rotate forwards and backwards, so that the filter cartridge can be controlled to rotate and rotate backwards through the driven gear, and the filter cartridge can be effectively prevented from being blocked; the electric telescopic rod is controlled to extend, the transmission ring plate rotates to drive the baffles to rotate on the supporting ring plate, the baffles can be controlled to make contact with or be separated from one another, and therefore opening and closing of the opening in the bottom end of the filter cartridge can be freely controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of powder coating production, in particular to a fine screening device for thermosetting powder coating. Background Art

[0002] Thermosetting powder coating refers to a coating that uses thermosetting resin as a film-forming material and adds a curing agent that initiates a cross-linking reaction. After heating, it can form an insoluble and infusible hard coating. Thanks to the excellent properties of thermosetting powder, thermosetting powder has developed rapidly. During the production process of thermosetting powder coating, the powder needs to be screened to ensure that the particle size of the powder coating remains consistent, thereby ensuring the performance of the coating.

[0003] Existing powder screening technology often uses a screening device for thermosetting powder coating processing, such as the one disclosed in announcement number CN217528204U, which drives the sieve plate to rotate by driving the first motor, and at the same time drives the second motor to cause the sieve plate to reciprocate longitudinally. At this time, the thermosetting powder coating is added to the inside of the screening box through the feed hopper, and the longitudinal movement and rotation force of the sieve plate screens the heat-fixed powder coating. At this time, the thermosetting powder coating that has passed the screening is discharged from the screening bin through the discharge port for use. However, the thermosetting powder coating that has not been screened is placed in the equipment, and the remaining thermosetting powder coating needs to be taken out by disassembling the device. The process is troublesome, which in turn affects the screening efficiency of the thermosetting powder coating. Utility Model Content

[0004] The utility model aims to solve the problem that it is difficult to take out the residual thermosetting powder coating in the prior art, and proposes a thermosetting powder coating fine screening device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A device for fine screening of thermosetting powder coatings comprises a main body, a partition is welded inside the main body, a feed pipe is arranged inside the partition, a filter cartridge for screening thermosetting powder coatings is arranged at the bottom end of the partition, a driving motor is fixedly mounted at the top end of the main body, a screening mechanism for controlling the rotation of the filter cartridge and driven by the driving motor is arranged at the upper end of the partition, a support plate is fixedly mounted at the bottom end of the filter cartridge, and a control mechanism for controlling the opening and closing of an opening is arranged on the support plate.

[0007] In order to better achieve the above purpose, the utility model adopts a further technical solution: the bottom end of the main body and the filter cartridge is a funnel-shaped structure, a through hole for discharging materials is opened in the center of the support plate, and the filter cartridge is concentrically arranged with the partition.

[0008] In order to better achieve the above-mentioned purpose, the utility model adopts a further technical solution: the screening mechanism includes a transmission rod matched with the output end of the driving motor, a driving gear is rotatably installed on the partition, a driven rod is fixedly installed on the driving gear, a first connecting rod connected to the transmission rod pin is installed on the free end pin of the transmission rod, a driven gear meshing with the driving gear is rotatably installed on the partition, a central shaft fixedly connected to the bottom end of the driven gear is provided in the filter cylinder, a fixing rod is connected between the central shaft and the filter cylinder, the length of the transmission rod is less than the length of the first connecting rod, and the central shaft, the driven gear and the partition are concentrically arranged.

[0009] In order to better achieve the above-mentioned purpose, the utility model adopts a further technical solution: the control mechanism includes an electric telescopic rod fixedly mounted on a support plate, a transmission ring plate is rotatably mounted on the support plate, a connecting rod is welded on one side of the transmission ring plate, a slider connected to the pin shaft of the electric telescopic rod is slidably mounted on the connecting rod, a column is welded on the support plate, and a guide groove connected to the column is provided on the transmission ring plate, a baffle is mounted on the pin shaft of the support plate, a second connecting rod connected to the baffle pin shaft is mounted on the pin shaft of the transmission ring plate, the baffles are equidistantly distributed on the support plate, and the through holes at the transmission ring plate and the support plate are concentrically arranged.

[0010] The advantages of the utility model are: the driving rod rotates to drive the driving gear to rotate forward and reverse, so that the filter cartridge can be controlled to rotate reversely through the driven gear, which can effectively prevent the filter cartridge from being blocked; by controlling the extension of the electric telescopic rod, the transmission ring plate rotates to drive the baffle plate to rotate on the supporting ring plate, and the baffle plates can be controlled to contact or separate from each other, so that the opening and closing of the bottom end of the filter cartridge can be freely controlled, and the thermosetting powder coating in the filter cartridge can be easily taken out. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of a thermosetting powder coating fine screening device proposed by the utility model;

[0012] Figure 2 This is a cross-sectional view of a thermosetting powder coating fine screening device proposed by the utility model;

[0013] Figure 3 This is a schematic diagram of the screening mechanism structure of a thermosetting powder coating fine screening device proposed by the utility model;

[0014] Figure 4 This is a front view of a control mechanism of a thermosetting powder coating fine screening device proposed by the utility model;

[0015] Figure 5A is an enlarged structural schematic diagram of a thermosetting powder coating fine screening device proposed by the utility model;

[0016] Figure 6 The utility model discloses a side view of a control mechanism of a thermosetting powder coating fine screening device.

[0017] In the figure: 1. main body; 2. partition; 3. feed pipe; 4. filter cartridge; 5. drive motor; 6. support plate; 7. transmission rod; 8. drive gear; 9. driven rod; 10. first connecting rod; 11. driven gear; 12. center axis; 13. fixed rod; 14. electric telescopic rod; 15. transmission ring plate; 16. connecting rod; 17. slider; 18. column; 19. guide groove; 20. baffle; 21. second connecting rod. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] Reference Figure 1-Figure 6 As shown, a device for fine screening of thermosetting powder coatings comprises a main body 1, a partition 2 is welded inside the main body 1, a feed pipe 3 is arranged inside the partition 2, a filter cartridge 4 for screening thermosetting powder coatings is arranged at the bottom end of the partition 2, the thermosetting powder coatings are screened, pass through between the filter cartridge 4 and the main body 1, and fall to the opening of the main body 1, the bottom ends of the main body 1 and the filter cartridge 4 are funnel-shaped structures, the filter cartridge 4 is concentrically arranged with the partition 2, a driving motor 5 is fixedly installed at the top end of the main body 1, a screening mechanism for controlling the rotation of the filter cartridge 4 and driven by the driving motor 5 is arranged at the upper end of the partition 2, a support plate 6 is fixedly installed at the bottom end of the filter cartridge 4, a through hole for discharging is opened in the center of the support plate 6, and a control mechanism for controlling the opening and closing is arranged on the support plate 6.

[0020] The screening mechanism includes a transmission rod 7 which is matched and mounted on the output end of the driving motor 5, a driving gear 8 is rotatably mounted on the partition 2, a driven rod 9 is fixedly mounted on the driving gear 8, a first connecting rod 10 connected to the pin shaft of the transmission rod 7 is mounted on the pin shaft of the free end of the transmission rod 7, the length of the transmission rod 7 is less than the length of the first connecting rod 10, when the length of the transmission rod 7 is greater than or equal to the length of the first connecting rod 10, the purpose of controlling the forward and reverse rotation of the driving gear 8 cannot be achieved, a driven gear 11 which is meshed and connected to the driving gear 8 is rotatably mounted on the partition 2, the diameter of the driving gear 8 is greater than the diameter of the driven gear 11, when the large gear drives the small gear to rotate, the small gear can rotate one more circle, a central shaft 12 which is fixedly connected to the bottom end of the driven gear 11 is arranged in the filter cartridge 4, the output end of the driving motor 5 and the central shaft 12 are on the same vertical horizontal line, the central shaft 12, the driven gear 11 and the partition 2 are concentrically arranged, and a fixing rod 13 is connected between the central shaft 12 and the filter cartridge 4.

[0021] The control mechanism includes an electric telescopic rod 14 fixedly mounted on the support plate 6, a transmission ring plate 15 is rotatably mounted on the support plate 6, the transmission ring plate 15 is concentrically arranged with the through hole at the support plate 6, a connecting rod 16 is welded on one side of the transmission ring plate 15, a slider 17 connected to the pin shaft of the electric telescopic rod 14 is slidably mounted on the connecting rod 16, a column 18 is welded on the support plate 6, and a guide groove 19 connected to the column 18 is provided on the transmission ring plate 15, a baffle 20 is mounted on the pin shaft of the support plate 6, and the baffles 20 are equidistantly distributed on the support plate 6, and a second connecting rod 21 connected to the pin shaft of the baffle 20 is mounted on the pin shaft of the transmission ring plate 15. When the transmission ring plate 15 is controlled to rotate counterclockwise, the baffles 20 conflict with each other to form a closed circular plate, which can block the through hole on the support plate 6. The specific model specifications of the drive motor 5 and the electric telescopic rod 14 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it is not repeated.

[0022] When the utility model is used, the thermosetting powder coating is put into the filter cylinder 4 from the feed pipe 3, the drive motor 5 is turned on, and the transmission rod 7 is controlled to rotate clockwise. At this time, the first connecting rod 10 will perform periodic motion, driving the driven rod 9 to swing, thereby controlling the driving gear 8 to perform alternating positive and negative rotational motion, and then controlling the driven gear 11 to perform positive and negative rotation. The filter cylinder 4 is controlled to rotate through the central axis 12, and the qualified thermosetting powder coating is sieved into the main body 1 by centrifugal force, and the qualified thermosetting powder coating is collected from the opening of the main body 1; when it is necessary to take out the thermosetting powder coating that does not meet the standard, the electric telescopic rod 14 is controlled to contract, and the transmission ring plate 15 is driven by the connecting rod 16 to rotate clockwise, and the baffle 20 is deflected by the traction of the second connecting rod 21. At this time, the through hole of the originally closed support plate 6 is opened, and the thermosetting powder coating falls from it.

Claims

1. A thermosetting powder coating fine screening device, comprising a main body (1), characterized in that: A partition (2) is welded inside the main body (1), a feed pipe (3) is arranged inside the partition (2), a filter cartridge (4) for screening thermosetting powder coating is arranged at the bottom end of the partition (2), a drive motor (5) is fixedly mounted on the top end of the main body (1), a screening mechanism for controlling the rotation of the filter cartridge (4) and driven by the drive motor (5) is arranged at the upper end of the partition (2), a support plate (6) is fixedly mounted on the bottom end of the filter cartridge (4), a control mechanism for controlling the opening and closing of the opening is arranged on the support plate (6), the control mechanism comprises an electric telescopic rod (14) fixedly mounted on the support plate (6), and a A transmission ring plate (15), a connecting rod (16) is welded to one side of the transmission ring plate (15), a sliding block (17) connected to the pin shaft of the electric telescopic rod (14) is slidably mounted on the connecting rod (16), a column (18) is welded to the support plate (6), and a guide groove (19) is provided on the transmission ring plate (15) and is connected to the column (18), a baffle (20) is mounted on the pin shaft of the support plate (6), a second connecting rod (21) connected to the pin shaft of the baffle (20) is mounted on the pin shaft of the transmission ring plate (15), the baffles (20) are equidistantly distributed on the support plate (6), and the through holes at the transmission ring plate (15) and the support plate (6) are concentrically arranged.

2. A thermosetting powder coating fine screening device according to claim 1, characterized in that: The bottom ends of the main body (1) and the filter cartridge (4) are funnel-shaped structures, a through hole for discharging materials is provided at the center of the support plate (6), and the filter cartridge (4) is arranged concentrically with the partition plate (2).

3. A thermosetting powder coating fine screening device according to claim 2, characterized in that: The screening mechanism comprises a transmission rod (7) matched with the output end of the driving motor (5); a driving gear (8) is rotatably mounted on the partition (2); a driven rod (9) is fixedly mounted on the driving gear (8); a first connecting rod (10) connected to the pin of the transmission rod (7) is mounted on the free end pin of the transmission rod (7); a driven gear (11) meshingly connected to the driving gear (8) is rotatably mounted on the partition (2); a central shaft (12) fixedly connected to the bottom end of the driven gear (11) is arranged in the filter cartridge (4); a fixing rod (13) is connected between the central shaft (12) and the filter cartridge (4); the length of the transmission rod (7) is less than the length of the first connecting rod (10); the central shaft (12), the driven gear (11) and the partition (2) are concentrically arranged.

Images