A powder coating proportioning and color matching device

Abstract

The present invention discloses a powder coating proportioning and color matching device, which relates to the technical field of powder coating proportioning and color matching, including a spray box, a processing box fixedly embedded in the top of the spray box; a grinding mechanism, the grinding mechanism including a mounting frame fixedly connected to the inner wall of the processing box, the upper end of the mounting frame is symmetrically fixedly connected to two vertical plates, the side walls of the two vertical plates close to each other are connected to a rotating rod for common rotation, the side wall of the rotating rod is fixedly connected to a mounting frame, the upper end of the mounting frame is fixedly connected to a coating grinding frame, and the inner wall of the mounting frame is sealed and fixedly connected to a bearing plate. In the present invention, by starting the motor, the grinding roller can be driven to move back and forth and rotate, and the powder coating is repeatedly rolled and ground, so that the powder coating is ground more delicately, avoiding the presence of large particles of powder, resulting in a serious texture of sand in the later spraying, and can also improve the adhesion of the powder coating and improve product quality.

Description

Technical Field

[0001] The invention relates to the technical field of powder coating proportioning and color matching, and in particular to a powder coating proportioning and color matching device. Background Art

[0002] Powder coating is a solvent-free, 100% solid powder coating that has the characteristics of being solvent-free, pollution-free, recyclable, environmentally friendly, saving energy and resources, reducing labor intensity, and having high mechanical strength of the coating film.

[0003] The existing powder coating color matching device is unable to finely grind the powder before spraying, and thus the powder coating contains coarser particles. When these powder coatings are sprayed onto the product surface, the product surface will have a granular sand texture, affecting the product appearance, and will also cause poor adhesion of the powder coating, making the applicability of the entire color matching device poor. In addition, during the color matching process, the mixing uniformity of the powder coating is poor, there is a strong color difference, and the color difference is obvious.

[0004] Based on this, we propose a powder coating proportioning and color matching device. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a powder coating proportioning and color matching device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A powder coating proportioning and color matching device comprises a spraying box, wherein a processing box is fixedly embedded in the top of the spraying box;

[0008] The grinding mechanism comprises a mounting frame fixedly connected to the inner wall of the processing box, the upper end of the mounting frame is symmetrically fixedly connected to two vertical plates, the side walls of the two vertical plates close to each other are rotatably connected to a rotating rod, the side walls of the rotating rod are fixedly connected to a mounting frame, the upper end of the mounting frame is fixedly connected to a paint grinding frame, the inner wall of the mounting frame is sealed and fixedly connected to a bearing plate, the inner wall of the paint grinding frame is symmetrically fixedly connected to two guide rods, the side walls of the two guide rods are slidably connected to a horizontal frame, the lower end of the horizontal frame is fixedly connected to a vertical frame, the lower end of the vertical frame is fixedly connected to a U-shaped frame, the inner wall of the U-shaped frame is rotatably connected to a first rotating shaft, and the side walls of the first rotating shaft are symmetrically fixedly connected to two grinding rollers.

[0009] Preferably, the grinding mechanism also includes an L-shaped frame fixedly connected to the upper end of the mounting frame, the side wall of the L-shaped frame is rotatably connected to a transmission shaft, the side wall of the transmission shaft is fixedly connected to a cam, the side wall of the cam is fixedly connected to a connecting rod through a fixed shaft, the lower end of the connecting rod is rotatably connected to a driving rod, the other end of the driving rod is rotatably connected to the vertical frame, two mounting plates are symmetrically fixedly connected to the upper end of the mounting frame, the side walls of the two mounting plates close to each other are rotatably connected to rollers, and the lower end of the cam slides against the upper end of the roller.

[0010] Preferably, a driving mechanism is installed on the L-shaped frame, and the driving mechanism includes a motor fixedly connected to the side wall of the L-shaped frame, the output end of the motor passes through the side wall of the L-shaped frame and is fixedly connected to the transmission shaft, both ends of the first rotating shaft pass through the side wall of the U-shaped frame and are fixedly connected to the first gear, and the inner wall of the paint grinding frame is symmetrically fixedly connected with two racks, and the first gear is meshingly connected to the rack.

[0011] Preferably, the paint grinding frame has two discharge ports symmetrically provided on the side wall near the cam, and the inner walls of the two discharge ports are fixedly connected with screens. The upper end of the paint grinding frame is provided with a mounting groove, and the drive rod is arranged through the mounting groove. The inner walls of the mounting groove are respectively sealed and slidably connected with a first sealing plate and a second sealing plate, and the upper ends of the first sealing plate and the lower ends of the second sealing plate are both against the side walls of the drive rod, and the lower end of the first sealing plate is arranged through the lower end of the mounting frame.

[0012] Preferably, a vibration mechanism is installed on the first sealing plate, and the vibration mechanism includes two fixing rods symmetrically fixedly connected to the side wall of the first sealing plate, and the upper ends of the two fixing rods are fixedly connected to a toggle plate, and the toggle plate is made of elastic material, and the side wall of the screen is fixedly connected to a plurality of rubber strips cooperating with the toggle plate, and the side wall of the first sealing plate is sleeved with a first spring, and the two ends of the first spring are respectively fixedly connected to the lower end of the mounting frame and the upper end of the fixing rod.

[0013] Preferably, a mixing mechanism is installed on the U-shaped frame, and the mixing mechanism includes multiple second rotating shafts rotatably connected to the top of the U-shaped frame, multiple second rotating shaft side walls are fixedly connected to multiple mixing rods, multiple second rotating shaft upper ends are arranged through the upper end of the U-shaped frame, and multiple second rotating shaft side walls are fixedly connected to second gears, the second gears are meshingly connected, the first rotating shaft side wall is fixedly connected to the first bevel gear, wherein two second rotating shaft side walls are fixedly connected to the second bevel gear, and the first bevel gear is meshingly connected to the second bevel gear.

[0014] Preferably, a re-pressing mechanism is installed on the mixing rod, and the re-pressing mechanism includes a cavity opened in the mixing rod, and a plurality of grinding heads are sealingly and slidably connected to the inner wall of the cavity, and the lower ends of the plurality of grinding heads are all arranged through the lower end of the mixing rod, and a second spring is fixedly connected between the grinding heads and the top of the cavity, a vertical groove is opened in the second rotating shaft, and the vertical groove is connected to the cavity through a connecting hole, and the upper end of the U-shaped frame is fixedly connected to a plurality of rotating joints through a bracket, and the upper end of the second rotating shaft is fixedly connected to the rotating joint.

[0015] Preferably, the re-pressure mechanism also includes a vertical cylinder fixedly connected to the upper end of the paint grinding frame through a bracket, the inner wall of the vertical cylinder is sealingly and slidingly connected with a sliding plug, a third spring is fixedly connected between the sliding plug and the top of the vertical cylinder, the upper end of the second sealing plate passes through the lower end of the vertical cylinder and is fixedly connected to the sliding plug, the inner wall of the vertical cylinder is fixedly connected with a branch pipe, and the other end of the branch pipe is fixedly connected to a rotary joint.

[0016] Preferably, a feed hopper is fixedly connected to the upper end of the processing box, a spray controller is installed at the lower end of the processing box, a spray head is installed at the lower end of the spray controller, and the spray controller is connected to the processing box through a pumping pipe.

[0017] The present invention has the following beneficial effects:

[0018] 1. By setting up the grinding mechanism and the driving mechanism and starting the motor, the grinding roller can be driven to move back and forth and rotate, and the powder coating can be repeatedly crushed and ground to make the powder coating finer, avoiding the presence of large particles of powder, which will cause serious sand texture in the later spraying, and can also improve the adhesion of the powder coating and improve product quality;

[0019] 2. By setting the discharge port, screen, installation groove, first sealing plate and second sealing plate, the paint grinding frame and the carrier plate can be driven to rotate up and down during the rotation of the cam, so that the powder paint will roll back and forth on the carrier plate, which makes it easier for the grinding roller to grind it repeatedly until it is fine enough to pass through the screen, thereby ensuring that there are no large particles in the powder paint, ensuring the fineness of the spraying, and reducing the sand texture;

[0020] 3. By setting a vibration mechanism, the driving rod will repeatedly squeeze the first sealing plate during the up and down swinging process. The first sealing plate cooperates with the first spring to make it move up and down reciprocatingly, thereby driving the fixed rod to move up and down reciprocatingly, driving the toggle plate to move up and down reciprocatingly, so that it continuously hits the rubber strip, and the rubber strip will deform and vibrate, thereby making the screen vibrate, thereby improving the screening efficiency of the screen for powder coatings;

[0021] 4. By setting a mixing mechanism, during the grinding of the powder coating, the rotation of the first shaft will synchronously drive the first bevel gear to rotate, drive the second bevel gear to rotate, and then drive two of the second shafts to rotate. Since the multiple second gears are meshed, all the second shafts will rotate synchronously, driving the multiple mixing rods to rotate, stirring and mixing the powder coating on the carrier plate, so that the powder coatings of different colors are evenly mixed during the grinding process, avoiding obvious color contrast during the later spraying, causing large color difference, and reducing the appearance quality of the product;

[0022] 5. By setting a re-pressing mechanism, the second sealing plate will be repeatedly squeezed during the up and down swinging of the driving rod. The second sealing plate cooperates with the second spring to make the sliding plug slide back and forth in the vertical cylinder in a sealed manner, and then the air in the vertical cylinder will repeatedly enter and be drawn out of the vertical groove through the branch pipe, and then the air will repeatedly enter and be drawn out of the cavity, so that multiple grinding heads will reciprocate up and down to knock the bearing plate, and then the powder coating on the bearing plate can be knocked and pressed, further improving the grinding effect and grinding efficiency of the powder coating;

[0023] 6. Although the powder coating can be crushed finely under the pressure of the grinding roller, the pressure applied by the grinding roller to the powder coating will compress the space gaps between the powder coatings, and then the powder coatings will be compacted, which may adhere to the supporting plate. Therefore, when the paint grinding frame and the supporting plate reciprocate up and down, the rolling performance of the powder coating will deteriorate. Therefore, the rotation of the mixing rod will disperse the compacted powder coating, which can improve its rolling performance. The grinding head repeatedly hits the supporting plate, which will vibrate the supporting plate, and then the powder coating will vibrate, so that the compacted powder coating will be shaken apart, further improving the rolling performance of the powder coating, which is convenient for grinding and screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the three-dimensional structure of a powder coating proportioning and color matching device proposed by the present invention;

[0025] Figure 2 for Figure 1 A schematic cross-sectional view of the structure;

[0026] Figure 3 for Figure 2 Schematic diagram of the three-dimensional structure of the grinding mechanism;

[0027] Figure 4 for Figure 3 A schematic cross-sectional view of the structure;

[0028] Figure 5 for Figure 4 Schematic diagram of the three-dimensional structure of the mixing mechanism;

[0029] Figure 6 for Figure 4 Schematic diagram of the cross-sectional structure of the middle vertical tube;

[0030] Figure 7 for Figure 4 A schematic diagram of the enlarged structure in FIG.

[0031] In the figure: 1, spray box; 2, treatment box; 3, installation frame; 4, vertical plate; 5, rotating rod; 6, paint grinding frame; 7, guide rod; 8, horizontal frame; 9, vertical frame; 10, U-shaped frame; 11, first rotating shaft; 12, grinding roller; 13, L-shaped frame; 14, transmission shaft; 15, cam; 16, connecting rod; 17, driving rod; 18, installation plate; 19, roller; 20, first gear; 21, rack; 22, installation groove; 23, discharge port; 24, screen; 25, first sealing plate; 26, second sealing plate; 27, fixing rod ; 28. toggle plate; 29. ​​rubber strip; 30. second rotating shaft; 31. mixing rod; 32. second gear; 33. first bevel gear; 34. second bevel gear; 35. first spring; 36. cavity; 37. grinding head; 38. second spring; 39. vertical groove; 40. connecting hole; 41. rotary joint; 42. vertical cylinder; 43. sliding plug; 44. third spring; 45. branch pipe; 46. motor; 47. feed hopper; 48. spray controller; 49. nozzle; 50. extraction pipe; 51. load plate; 52. mounting frame. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0033] Reference Figure 1 - Figure 7 , a powder coating proportioning and color matching device, comprising a spray box 1, in which a processing box 2 is fixedly embedded on the top of the spray box 1;

[0034] The grinding mechanism includes a mounting frame 3 fixedly connected to the inner wall of the processing box 2, the upper end of the mounting frame 3 is symmetrically fixedly connected to two vertical plates 4, the side walls of the two vertical plates 4 close to each other are rotatably connected to a rotating rod 5, the side wall of the rotating rod 5 is fixedly connected to a mounting frame 52, the upper end of the mounting frame 52 is fixedly connected to a paint grinding frame 6, the inner wall of the mounting frame 52 is sealed and fixedly connected to a bearing plate 51, the bearing plate 51 has a certain elasticity, the inner wall of the paint grinding frame 6 is symmetrically fixedly connected to two guide rods 7, the side walls of the two guide rods 7 are slidably connected to a horizontal frame 8, the lower end of the horizontal frame 8 is fixedly connected to a vertical frame 9, the lower end of the vertical frame 9 is fixedly connected to a U-shaped frame 10, the inner wall of the U-shaped frame 10 is rotatably connected to a first rotating shaft 11, and the side walls of the first rotating shaft 11 are symmetrically fixedly connected to two grinding rollers 12.

[0035] The grinding mechanism also includes an L-shaped frame 13 fixedly connected to the upper end of the mounting frame 52, the side wall of the L-shaped frame 13 is rotatably connected to a transmission shaft 14, the side wall of the transmission shaft 14 is fixedly connected to a cam 15, the side wall of the cam 15 is fixedly connected to a connecting rod 16 through a fixed shaft, the lower end of the connecting rod 16 is rotatably connected to a driving rod 17, the other end of the driving rod 17 is rotatably connected to the vertical frame 9, the upper end of the mounting frame 3 is symmetrically fixedly connected to two mounting plates 18, the side walls of the two mounting plates 18 close to each other are rotatably connected to a roller 19, and the lower end of the cam 15 slides against the upper end of the roller 19.

[0036] A driving mechanism is installed on the L-shaped frame 13, and the driving mechanism includes a motor 46 fixedly connected to the side wall of the L-shaped frame 13. The output end of the motor 46 passes through the side wall of the L-shaped frame 13 and is fixedly connected to the transmission shaft 14. Both ends of the first rotating shaft 11 pass through the side wall of the U-shaped frame 10 and are fixedly connected to the first gear 20. The inner wall of the paint grinding frame 6 is symmetrically fixedly connected to two racks 21, and the first gear 20 is meshed with the rack 21.

[0037] Furthermore, the driving motor 46 rotates, driving the transmission shaft 14 to rotate, and then driving the cam 15 to rotate. The cam 15 will drive the connecting rod 16 to rotate, and then the connecting rod 16 will drive the driving rod 17 to move back and forth, and it will also swing up and down, and the driving rod 17 will drive the vertical frame 9 to move back and forth, and then drive the horizontal frame 8 and the U-shaped frame 10 to move back and forth, and drive the first rotating shaft 11 and the grinding roller 12 to move back and forth. During the reciprocating movement of the first rotating shaft 11, the first gear 20 will be driven to move back and forth. Since the first gear 20 is meshed with the rack 21, the first gear 20 will rotate synchronously, driving the first rotating shaft 11 to rotate, and then driving the grinding roller 12 to rotate. Therefore, the grinding roller 12 will roll and grind the powder coating on the supporting plate 51 back and forth, grinding the powder coating more finely, avoiding the presence of large particles of powder, resulting in a serious sand texture in the later spraying, and can also improve the adhesion of the powder coating and improve product quality.

[0038] The paint grinding frame 6 has two discharge ports 23 symmetrically arranged on the side wall near the cam 15. The inner walls of the two discharge ports 23 are fixedly connected with screens 24. The screens 24 have a certain elasticity. A mounting groove 22 is arranged at the upper end of the paint grinding frame 6. The drive rod 17 passes through the mounting groove 22. The inner walls of the mounting groove 22 are respectively sealed and slidably connected with a first sealing plate 25 and a second sealing plate 26. The upper end of the first sealing plate 25 and the lower end of the second sealing plate 26 are both against the side wall of the drive rod 17, and the lower end of the first sealing plate 25 passes through the lower end of the mounting frame 52.

[0039] It should be noted that the first sealing plate 25 and the second sealing plate 26 are always against the driving rod 17, thereby ensuring the sealing of the mounting groove 22 and preventing the powder coating in the coating grinding frame 6 from leaking through the mounting groove 22 without being screened, resulting in insufficient grinding of the powder coating.

[0040] Furthermore, during the rotation of the cam 15, the cam 15 and the roller 19 slide against each other, and when the protruding portion of the cam 15 abuts against the roller 19, the entire mounting frame 52 will rotate upward with the rotating rod 5 as the center, and then the paint grinding frame 6 and the carrying plate 51 will rotate upward, so that they are tilted to the lower left (as shown in the attached figure). Figure 2 As shown in the figure, the powder coating on the carrier plate 51 will roll to the lower left and onto the screen 24. The finely ground powder coating will pass through the screen 24 and fall to the bottom of the processing box 2, while the powder coating with larger particles cannot pass through the screen 24. When the cam 15 continues to rotate, the paint grinding frame 6 and the carrier plate 51 will rotate downward, and then they will tilt to the lower right, and then the powder coating will roll to the lower right. Therefore, during the continuous rotation of the cam 15, the paint grinding frame 6 and the carrier plate 51 will reciprocate up and down, and then the powder coating will roll back and forth on the carrier plate 51, making it easier for the grinding roller 12 to repeatedly grind it until it is fine enough to pass through the screen 24, thereby ensuring that there are no large particles in the powder coating, ensuring the fineness of the spraying, and reducing the sandy texture.

[0041] A vibration mechanism is installed on the first sealing plate 25, and the vibration mechanism includes two fixed rods 27 symmetrically fixedly connected to the side wall of the first sealing plate 25, and the upper ends of the two fixed rods 27 are fixedly connected to the toggle plates 28, and the toggle plates 28 are made of elastic material. The side wall of the screen 24 is fixedly connected to a plurality of rubber strips 29 that cooperate with the toggle plates 28, and the side wall of the first sealing plate 25 is sleeved with a first spring 35, and the two ends of the first spring 35 are respectively fixedly connected to the lower end of the mounting frame 52 and the upper end of the fixed rod 27.

[0042] Furthermore, during the up and down swinging process of the driving rod 17, the first sealing plate 25 will be repeatedly squeezed. The first sealing plate 25 cooperates with the first spring 35 to make it move back and forth up and down, thereby driving the fixed rod 27 to move back and forth up and down, and driving the toggle plate 28 to move back and forth up and down, so that it continuously hits the rubber strip 29. The rubber strip 29 will deform and vibrate, thereby causing the screen 24 to vibrate, thereby improving the screening efficiency of the screen 24 for powder coating.

[0043] A mixing mechanism is installed on the U-shaped frame 10, and the mixing mechanism includes a plurality of second rotating shafts 30 rotatably connected to the top of the U-shaped frame 10, a plurality of mixing rods 31 are fixedly connected to the side walls of the plurality of second rotating shafts 30, the upper ends of the plurality of second rotating shafts 30 are all arranged through the upper end of the U-shaped frame 10, and the side walls of the plurality of second rotating shafts 30 are fixedly connected to the second gears 32, and the second gears 32 are meshingly connected to each other, and the side walls of the first rotating shaft 11 are fixedly connected to the first bevel gear 33, wherein the side walls of two second rotating shafts 30 are fixedly connected to the second bevel gears 34, and the first bevel gear 33 is meshingly connected to the second bevel gear 34.

[0044] Furthermore, in the process of grinding the powder coating, the rotation of the first rotating shaft 11 will synchronously drive the first bevel gear 33 to rotate, drive the second bevel gear 34 to rotate, and then drive two of the second rotating shafts 30 to rotate. Due to the engagement between the multiple second gears 32, all the second rotating shafts 30 will rotate synchronously, driving the multiple mixing rods 31 to rotate, stirring and mixing the powder coating on the supporting plate 51, so that the powder coatings of various colors are evenly mixed during the grinding, avoiding obvious color contrast during the later spraying, causing large color difference, and reducing the appearance quality of the product.

[0045] A re-pressing mechanism is installed on the mixing rod 31, and the re-pressing mechanism includes a cavity 36 opened in the mixing rod 31, and a plurality of grinding heads 37 are sealingly and slidably connected to the inner wall of the cavity 36, and the lower ends of the plurality of grinding heads 37 are all arranged through the lower end of the mixing rod 31, and a second spring 38 is fixedly connected between the grinding heads 37 and the top of the cavity 36. A vertical groove 39 is opened in the second rotating shaft 30, and the vertical groove 39 is connected to the cavity 36 through a connecting hole 40. The upper end of the U-shaped frame 10 is fixedly connected to a plurality of rotating joints 41 through a bracket, and the upper end of the second rotating shaft 30 is fixedly connected to the rotating joint 41.

[0046] The re-pressure mechanism also includes a vertical cylinder 42 fixedly connected to the upper end of the paint grinding frame 6 through a bracket, the inner wall of the vertical cylinder 42 is sealed and slidably connected with a sliding plug 43, a third spring 44 is fixedly connected between the sliding plug 43 and the top of the vertical cylinder 42, the upper end of the second sealing plate 26 passes through the lower end of the vertical cylinder 42 and is fixedly connected to the sliding plug 43, the inner wall of the vertical cylinder 42 is fixedly connected with a branch pipe 45, the other end of the branch pipe 45 is fixedly connected to the rotary joint 41, and the branch pipe 45 is made of a hose.

[0047] Furthermore, the second sealing plate 26 will be repeatedly squeezed during the up and down swinging process of the driving rod 17. The second sealing plate 26 cooperates with the second spring 38 to make the sliding plug 43 slide back and forth in the vertical cylinder 42 in a sealed manner, and then the air in the vertical cylinder 42 will repeatedly enter and be drawn out of the vertical groove 39 through the branch pipe 45, and then the air will repeatedly enter and be drawn out of the cavity 36, so that the multiple grinding heads 37 move back and forth up and down to knock on the supporting plate 51, and then the powder coating on the supporting plate 51 can be knocked and pressed, thereby further improving the grinding effect and grinding efficiency of the powder coating.

[0048] It is worth mentioning that, although the powder coating can be crushed finely under the pressure of the grinding roller 12, the pressure applied by the grinding roller 12 to the powder coating will compress the space gaps between the powder coatings, and then the powder coatings will be compacted, which may adhere to the supporting plate 51. Therefore, when the coating grinding frame 6 and the supporting plate 51 rotate back and forth up and down, the rolling performance of the powder coating will deteriorate. Therefore, the rotation of the mixing rod 31 will disperse the compacted powder coating, which can improve its rolling performance. The grinding head 37 repeatedly strikes the supporting plate 51, and the supporting plate 51 will vibrate, which will cause the powder coating to vibrate, causing the compacted powder coating to be shaken apart, further improving the rolling performance of the powder coating, and facilitating its grinding and screening.

[0049] A feed hopper 47 is fixedly connected to the upper end of the processing box 2, a spray controller 48 is installed at the lower end of the processing box 2, a nozzle 49 is installed at the lower end of the spray controller 48, and the spray controller 48 is connected to the processing box 2 through a pumping pipe 50. The spray controller 48 can extract and spray the powder coating, which is a prior art and will not be described in detail here.

[0050] In the present invention, a plurality of powder coatings are sequentially added into the processing box 2 through the feed hopper 47 according to a prescribed ratio, and the powder coatings fall onto the carrying plate 51, and then the driving motor 46 rotates, driving the transmission shaft 14 to rotate, and then driving the cam 15 to rotate, and the cam 15 drives the connecting rod 16 to rotate, and then the connecting rod 16 drives the driving rod 17 to reciprocate, and it also swings up and down, and the driving rod 17 drives the vertical frame 9 to reciprocate, and then drives the horizontal frame 8 and the U-shaped frame 10 to reciprocate, driving the first rotating shaft 11 and the grinding roller 1 2 reciprocates, and the first rotating shaft 11 reciprocates during the process, which drives the first gear 20 to reciprocate. Since the first gear 20 is meshed with the rack 21, the first gear 20 will rotate synchronously, driving the first rotating shaft 11 to rotate, and then driving the grinding roller 12 to rotate. Therefore, the grinding roller 12 will grind the powder coating on the carrying plate 51 back and forth, grinding the powder coating more finely, avoiding the presence of large particles of powder, resulting in a serious sand texture in the later spraying, and can also improve the adhesion of the powder coating and improve product quality.

[0051] During the rotation of the cam 15, the cam 15 and the roller 19 slide against each other, and when the protruding portion of the cam 15 abuts against the roller 19, the entire mounting frame 52 will rotate upward with the rotating rod 5 as the center, and then the paint grinding frame 6 and the carrying plate 51 will rotate upward, so that they are tilted to the lower left (as shown in the attached figure). Figure 2 As shown in the figure, the powder coating on the carrier plate 51 will roll to the lower left and onto the screen 24. The finely ground powder coating will pass through the screen 24 and fall to the bottom of the processing box 2, while the powder coating with larger particles cannot pass through the screen 24. When the cam 15 continues to rotate, the paint grinding frame 6 and the carrier plate 51 will rotate downward, and then they will tilt to the lower right, and then the powder coating will roll to the lower right. Therefore, during the continuous rotation of the cam 15, the paint grinding frame 6 and the carrier plate 51 will reciprocate up and down, and then the powder coating will roll back and forth on the carrier plate 51, making it easier for the grinding roller 12 to repeatedly grind it until it is fine enough to pass through the screen 24, thereby ensuring that there are no large particles in the powder coating, ensuring the fineness of the spraying, and reducing the sandy texture.

[0052] In addition, during the process of grinding the powder coating, the rotation of the first rotating shaft 11 will synchronously drive the first bevel gear 33 to rotate, drive the second bevel gear 34 to rotate, and then drive two of the second rotating shafts 30 to rotate. Since the multiple second gears 32 are engaged, all of the second rotating shafts 30 will rotate synchronously, driving the multiple mixing rods 31 to rotate, stirring and mixing the powder coating on the supporting plate 51, so that the powder coatings of various colors are evenly mixed during the grinding, avoiding obvious color contrast during the later spraying, causing large color difference, and reducing the appearance quality of the product.

[0053] During the up and down swinging process of the driving rod 17, the second sealing plate 26 will be repeatedly squeezed. The second sealing plate 26 cooperates with the second spring 38 to make the sliding plug 43 slide back and forth in the vertical cylinder 42 in a sealed manner, and then the air in the vertical cylinder 42 will repeatedly enter and be drawn out of the vertical groove 39 through the branch pipe 45, and then the air will repeatedly enter and be drawn out of the cavity 36, so that the multiple grinding heads 37 move back and forth up and down to knock the supporting plate 51, and then the powder coating on the supporting plate 51 can be knocked and pressed, thereby further improving the grinding effect and grinding efficiency of the powder coating.

[0054] In addition, although the powder coating can be crushed finely under the pressure of the grinding roller 12, the pressure applied by the grinding roller 12 to the powder coating will compress the space gaps between the powder coatings, and then the powder coatings will be compacted, which may adhere to the supporting plate 51. Therefore, when the coating grinding frame 6 and the supporting plate 51 reciprocate up and down, the rolling performance of the powder coating will deteriorate. Therefore, the rotation of the mixing rod 31 will disperse the compacted powder coating, which can improve its rolling performance. The grinding head 37 repeatedly strikes the supporting plate 51, and the supporting plate 51 will vibrate, which will cause the powder coating to vibrate, causing the compacted powder coating to be shaken apart, further improving the rolling performance of the powder coating, and facilitating its grinding and screening.

[0055] During the up and down swinging process of the driving rod 17, the first sealing plate 25 will be repeatedly squeezed. The first sealing plate 25 cooperates with the first spring 35 to make it move back and forth, thereby driving the fixed rod 27 to move back and forth, driving the toggle plate 28 to move back and forth, and making it continuously hit the rubber strip 29. The rubber strip 29 will deform and vibrate, thereby making the screen 24 vibrate, thereby improving the screening efficiency of the screen 24 for powder coating.

[0056] Subsequently, the product to be sprayed can be placed in the spray box 1, and then the spray controller 48 is started to extract the powder coating in the processing box 2, and then spray it onto the product surface through the nozzle 49. The sprayed powder coating is fine and uniform in color.

[0057] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A powder coating proportioning and color matching device, characterized in that: include: A spray box (1), wherein a processing box (2) is fixedly embedded in the top of the spray box (1); A grinding mechanism, the grinding mechanism comprising a mounting frame (3) fixedly connected to the inner wall of the processing box (2), the mounting frame (3) having two vertical plates (4) symmetrically fixedly connected to the upper end, the side walls of the two vertical plates (4) close to each other being rotatably connected to a rotating rod (5), the side walls of the rotating rod (5) being fixedly connected to a mounting frame (52), the upper end of the mounting frame (52) being fixedly connected to a coating grinding frame (6), the inner wall of the mounting frame (52) being sealed and fixedly connected to a bearing plate (51), the inner wall of the coating grinding frame (6) being symmetrically fixedly connected to two guide rods (7), the side walls of the two guide rods (7) being slidably connected to a horizontal frame (8), the lower end of the horizontal frame (8) being fixedly connected to a vertical frame (9), the lower end of the vertical frame (9) being fixedly connected to a U-shaped frame (10), the inner wall of the U-shaped frame (10) being rotatably connected to a first rotating shaft (11), the side walls of the first rotating shaft (11) being symmetrically fixedly connected to two grinding rollers (12); The grinding mechanism further comprises an L-shaped frame (13) fixedly connected to the upper end of the mounting frame (52); a side wall of the L-shaped frame (13) is rotatably connected to a transmission shaft (14); a side wall of the transmission shaft (14) is fixedly connected to a cam (15); a side wall of the cam (15) is fixedly connected to a connecting rod (16) via a fixed shaft; a lower end of the connecting rod (16) is rotatably connected to a driving rod (17); the other end of the driving rod (17) is rotatably connected to the vertical frame (9); two mounting plates (18) are symmetrically fixedly connected to the upper end of the mounting frame (3); side walls of the two mounting plates (18) close to each other are rotatably connected to a roller (19); and the lower end of the cam (15) slides against the upper end of the roller (19); The L-shaped frame (13) is provided with a driving mechanism, the driving mechanism comprising a motor (46) fixedly connected to the side wall of the L-shaped frame (13), the output end of the motor (46) passing through the side wall of the L-shaped frame (13) and being fixedly connected to the transmission shaft (14), the two ends of the first rotating shaft (11) passing through the side wall of the U-shaped frame (10) and being fixedly connected to the first gear (20), the inner wall of the paint grinding frame (6) being symmetrically fixedly connected to two racks (21), the first gear (20) being meshingly connected to the racks (21); The paint grinding frame (6) has two discharge openings (23) symmetrically formed on the side wall near the cam (15), and the inner walls of the two discharge openings (23) are fixedly connected with screens (24). The paint grinding frame (6) has a mounting groove (22) formed on the upper end, and the drive rod (17) passes through the mounting groove (22). The inner wall of the mounting groove (22) is respectively connected with a first sealing plate (25) and a second sealing plate (26) in a sealing and sliding manner. The upper end of the first sealing plate (25) and the lower end of the second sealing plate (26) are both in contact with the side wall of the drive rod (17), and the lower end of the first sealing plate (25) passes through the lower end of the mounting frame (52); A vibration mechanism is installed on the first sealing plate (25), and the vibration mechanism comprises two fixing rods (27) symmetrically fixedly connected to the side wall of the first sealing plate (25), the upper ends of the two fixing rods (27) are fixedly connected to a toggle plate (28), and the toggle plate (28) is made of elastic material; the side wall of the screen (24) is fixedly connected to a plurality of rubber strips (29) matched with the toggle plate (28); the side wall of the first sealing plate (25) is sleeved with a first spring (35), and the two ends of the first spring (35) are respectively fixedly connected to the lower end of the mounting frame (52) and the upper end of the fixing rod (27); The U-shaped frame (10) is provided with a mixing mechanism, the mixing mechanism comprising a plurality of second rotating shafts (30) rotatably connected to the top of the U-shaped frame (10), the side walls of the plurality of second rotating shafts (30) being fixedly connected to a plurality of mixing rods (31), the upper ends of the plurality of second rotating shafts (30) being arranged to penetrate the upper end of the U-shaped frame (10), and the side walls of the plurality of second rotating shafts (30) being fixedly connected to a second gear (32), the second gears (32) being meshingly connected to each other, the side walls of the first rotating shaft (11) being fixedly connected to a first bevel gear (33), wherein the side walls of two of the second rotating shafts (30) being fixedly connected to a second bevel gear (34), and the first bevel gear (33) being meshingly connected to the second bevel gear (34); The mixing rod (31) is provided with a re-pressing mechanism, the re-pressing mechanism comprising a cavity (36) provided in the mixing rod (31), a plurality of grinding heads (37) being sealingly and slidably connected to the inner wall of the cavity (36), the lower ends of the plurality of grinding heads (37) being all arranged to penetrate the lower end of the mixing rod (31), a second spring (38) being fixedly connected between the grinding heads (37) and the top of the cavity (36), a vertical groove (39) being provided in the second rotating shaft (30), the vertical groove (39) being connected to the cavity (36) via a connecting hole (40), a plurality of rotating joints (41) being fixedly connected to the upper end of the U-shaped frame (10) via a bracket, and the upper end of the second rotating shaft (30) being fixedly connected to the rotating joint (41); The re-pressurizing mechanism further comprises a vertical cylinder (42) fixedly connected to the upper end of the paint grinding frame (6) via a bracket, the inner wall of the vertical cylinder (42) being sealingly and slidably connected to a sliding plug (43), a third spring (44) being fixedly connected between the sliding plug (43) and the inner top of the vertical cylinder (42), the upper end of the second sealing plate (26) passing through the lower end of the vertical cylinder (42) and being fixedly connected to the sliding plug (43), the inner wall of the vertical cylinder (42) being fixedly connected to a branch pipe (45), the other end of the branch pipe (45) being fixedly connected to the rotary joint (41).

2. A powder coating proportioning and color matching device according to claim 1, characterized in that: in: The upper end of the processing box (2) is fixedly connected to a feed hopper (47), the lower end of the processing box (2) is equipped with a spray controller (48), the lower end of the spray controller (48) is equipped with a spray head (49), and the spray controller (48) is connected to the processing box (2) via a pumping pipe (50).

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