Passivating treatment device for galvanized sheet production

Abstract

The invention relates to the technical field of galvanized plate treatment, and discloses a galvanized plate production passivation treatment device which comprises a workbench, and a clamping mechanism is arranged at the top of the workbench and used for fixing a circular plate. During use, through the arrangement of the two clamping assemblies, the function of fixing circular plates with different diameters can be achieved, the functions of positioning and centering the circular plates through peripheral fixing in the initial state can be achieved, fixing operation is simple, the clamping modes can be automatically switched through the extrusion effect during smearing and passivating treatment, and the practicability is high. According to the device, the fixing of the peripheral side of the circular plate is relieved, the circular plate can be fixed again through the bottom, the stability during smearing is improved, the influence of peripheral side clamping on a smeared solution after smearing is avoided, the liquid absorption length of a lower sponge brush can be adjusted through the arrangement of an adjusting assembly, and the waste phenomenon is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of galvanized sheet processing, and more specifically to a galvanized sheet production passivation processing device. Background Art

[0002] Galvanized steel sheet is to prevent the steel sheet surface from corrosion and extend its service life. A layer of metallic zinc is coated on the steel sheet surface. This zinc-coated steel sheet is called galvanized sheet. Galvanizing is an economical and effective rust prevention method that is often used. Because zinc is an active metal, if the zinc plating is not well post-processed, the coating will soon darken and white corrosion products will appear one after another. In order to reduce the chemical activity of zinc, chromate solution is often used to apply the plate surface for passivation treatment.

[0003] In the prior art, when passivating circular plates, the following problems often occur: 1. It is not convenient to fix circular plates of different diameters, and when applying to circular plates with smaller diameters, solution waste is likely to occur; Second, it is not convenient to apply the coating to the outer wall of the circular plate, and the coating is difficult; 3. Before applying the paint, the circular plate needs to be fixed first. Although the fixing operation is relatively simple and the circular plate can be centrally positioned, it is easy to cause jamming when applying the paint on the side, which is less practical. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a galvanized sheet production passivation treatment device to solve the problems existing in the above-mentioned background technology.

[0005] The present invention provides the following technical solution: a galvanized sheet production passivation treatment device, comprising a workbench, a clamping mechanism is arranged on the top of the workbench, the clamping mechanism is used to fix the circular plate, the clamping mechanism has two clamping modes, and the circular plate can be fixed from the circumference and the bottom respectively, a coating mechanism is arranged on the top of the workbench, the coating mechanism is used to evenly coat the top and circumference of the circular plate, the coating mechanism comprises a U-shaped frame, the U-shaped frame is fixedly installed on the top of the workbench, a circular plate is lifted and installed below the U-shaped frame, a U-shaped mounting plate is arranged at the bottom of the circular plate, and the U-shaped mounting plate The U-shaped mounting plate is rotatably connected to the circular plate, and a liquid storage cylinder is arranged on the top of the U-shaped mounting plate. A stirring assembly is arranged in the liquid storage cylinder, and the stirring assembly is driven by the rotation of the U-shaped mounting plate. A lower sponge brush is fixedly arranged on the bottom inner wall of the U-shaped mounting plate, and an adjusting assembly is arranged on the U-shaped mounting plate, and the adjusting assembly is used to adjust the liquid absorption length of the lower sponge brush. Two side sponge brushes are movably installed on the bottom of the U-shaped mounting plate, and the two side sponge brushes are fittedly connected. The lower sponge brush and the two side sponge brushes can absorb the liquid in the liquid storage cylinder, and the two side sponge brushes both realize the position adjustment function through the adjusting assembly.

[0006] Furthermore, the clamping mechanism also includes four rectangular slide blocks, the top of the workbench is provided with four T-shaped sliding holes, the relative inner walls of the four T-shaped sliding holes are fixedly installed with first limit shafts, the four rectangular slide blocks are respectively slidably installed on the four first limit shafts, the sides of the four rectangular slide blocks are provided with two clamping assemblies, the two clamping assemblies have a switching function, and the circular plate is fixed through different positions, the bottom of the workbench is rotatably installed with a lifting screw rod, the bottom end of the lifting screw rod is rotatably installed with a fixing plate, the fixing plate and the relative side of the workbench are connected with a fixing shaft, the bottom of the fixing plate is provided with a lifting motor, the output shaft of the lifting motor is connected to the bottom end of the lifting screw rod, the lifting screw rod is threadedly installed with a lifting ring, the top of the lifting ring is provided with a circular hole, the fixed shaft is slidably installed in the circular hole, and four connecting rods are rotatably installed on the peripheral outer wall of the lifting ring, and the other ends of the four connecting rods are respectively rotatably installed on the bottom of the four rectangular slide blocks.

[0007] Furthermore, one of the clamping assemblies includes an electric telescopic rod, a through hole is opened on the side of the rectangular slider, the electric telescopic rod is fixedly installed in the through hole, an arc-shaped fixing plate is fixedly installed on the output end of the electric telescopic rod, both sides of the arc-shaped fixing plate are designed as arc-shaped surfaces, one of the arc-shaped surfaces is opened with a sensing groove, a sensor is fixedly installed in the sensing groove, and two clamping rings are fixedly sleeved on the output end of the electric telescopic rod.

[0008] Furthermore, another clamping assembly includes a suction cup, an air box is fixedly installed on the side of the rectangular slider, a smooth hole is provided on the outer wall of the circumference of the arc-shaped fixed plate, an air pipe is slidably installed in the smooth hole, one end of the air pipe is connected to the inside of the suction cup, the suction cup is placed horizontally, the other end of the air pipe is connected to the inner wall of the circumference of the air box, a piston plate is slidably installed in the air box, a rectangular sliding hole is provided on the top of the air box, a U-shaped connecting rod is slidably installed in the rectangular sliding hole, one end of the U-shaped connecting rod is fixedly connected to the side of the piston plate, and a clamping block is fixedly installed on the top of the other end of the U-shaped connecting rod, and the clamping block is clamped and installed between the two clamping rings.

[0009] Furthermore, the smearing mechanism also includes a hydraulic cylinder, a circular hole is opened on the top of the U-shaped frame, the hydraulic cylinder is fixedly installed in the circular hole, the output end of the hydraulic cylinder is fixedly connected to the top of the circular plate, a rotating shaft is rotatably installed at the bottom of the circular plate, a rotating motor is fixedly installed at the top of the circular plate, the output shaft of the rotating motor passes through the circular plate and is fixedly sleeved with a driving gear, the peripheral outer wall of the rotating shaft is fixedly sleeved with a driven gear meshing with the driving gear, and the bottom end of the rotating shaft is fixedly connected to the top of the U-shaped mounting plate.

[0010] Furthermore, the stirring assembly includes a stirring shaft, a square plate is fixedly arranged on the top of the U-shaped mounting plate, the liquid storage cylinder is fixedly arranged on the top of the square plate, a side block is fixedly arranged on the peripheral outer wall of the liquid storage cylinder, a transmission cavity is jointly opened in the liquid storage cylinder and the side block, the bottom end of the stirring shaft is rotatably mounted on the bottom inner wall of the liquid storage cylinder, the top end of the stirring shaft extends into the transmission cavity and is rotatably mounted on the top inner wall of the transmission cavity, and a plurality of stirring shafts are fixedly arranged on the peripheral outer wall of the stirring shaft. A mixing rod, a lower hole is opened on the bottom inner wall of the transmission chamber, a rotating rod is rotatably installed on the top inner wall of the transmission chamber, the bottom end of the rotating rod extends to the outside of the side block and is rotatably installed on the top of the square plate, the stirring shaft and the peripheral outer wall of the rotating rod are fixedly sleeved with a first sprocket, and a first chain is meshed and installed on the two first sprockets, a matching gear is fixedly sleeved on the peripheral outer wall of the rotating rod, and an annular rack is fixedly sleeved on the peripheral outer wall of the circular plate, and the matching gear is meshed and installed with the annular rack.

[0011] Furthermore, the smearing mechanism also includes a liquid outlet pipe and multiple diversion pipes. A diversion cavity is opened in the U-shaped mounting plate. The top inner wall of the diversion cavity and the bottom inner wall of the liquid storage cylinder are jointly provided with a liquid outlet hole. The liquid outlet pipe is fixedly arranged in the liquid outlet hole. A first solenoid valve is arranged on the liquid outlet pipe. A plurality of diversion holes are opened on the bottom inner wall of the diversion cavity. The plurality of diversion pipes are respectively fixedly arranged in the plurality of diversion holes. A second solenoid valve is arranged on the plurality of diversion pipes. The bottom ends of the plurality of diversion pipes are in contact with the top of the lower sponge brush.

[0012] Furthermore, the adjusting assembly includes two extrusion plates, and two screws are rotatably installed on the inner wall of the side of the U-shaped mounting plate, and the other ends of the two screws extend to the outside of the U-shaped mounting plate and are fixedly sleeved with a second sprocket, and a second chain is meshed and installed on the two second sprockets together, and a driving motor is fixedly installed on the side of the U-shaped mounting plate, and the output shaft of the driving motor is connected to the end of one of the screws, and the two extrusion plates are respectively threadedly installed on the two screws, and the sides of the two extrusion plates close to each other are semicircular in design, and the sides of the two extrusion plates close to each other squeeze the two sides of the lower sponge brush respectively, and the sides of the two extrusion plates are provided with limiting holes, and second limiting shafts are slidably installed in the two limiting holes, and the two ends of the two second limiting shafts are fixedly installed on the relative inner walls of the U-shaped mounting plate.

[0013] Furthermore, the smearing mechanism also includes a liquid storage tank, the sides of the two extrusion plates are fixedly installed with connecting blocks, the top of the liquid storage tank is fixedly connected to the bottom of the two connecting blocks, a hose is fixedly provided on the side inner wall of the liquid storage tank, the other end of the hose is connected to the side inner wall of the diversion chamber, a third solenoid valve is provided on the hose, an arc-shaped extrusion plate is fixedly installed on the bottom of the liquid storage tank, a side plate is fixedly installed on the side of the liquid storage tank, a square groove is provided at the bottom of the side plate, a guide shaft is fixedly installed on the top inner wall of the square groove, a square lifting column is slidably installed on the peripheral outer wall of the guide shaft, a compression spring is sleeved on the peripheral outer wall of the guide shaft, the two side sponge brushes are respectively fixedly installed on the side of the side plate and the side of the square lifting column, and a drainage hole is provided on the side inner wall of the liquid storage tank, and the drainage hole corresponds to one of the side sponge brushes.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the setting of two clamping components, not only can the fixing function of circular plates of different diameters be realized, but also the positioning and centering functions of the circular plates can be performed through the peripheral fixation in the initial state. The fixing operation is simple. When applying the passivation treatment, the clamping mode can be automatically switched through the extrusion effect, which not only releases the peripheral fixation of the circular plate, but also can fix it again through the bottom, thereby improving the stability during application and avoiding the influence of the peripheral clamping on the applied solution after application.

[0015] 2. By adjusting the setting of the component, the lower sponge brush can be squeezed at any position of the lower sponge brush. The lower sponge brush can be separated by the squeezing action of the two squeezing blocks, so that after the solution soaks the lower sponge brush on one side of the squeezing block, it will not soak the lower sponge brush on the other side of the squeezing block. This setting can prevent waste when applying to circular plates with smaller diameters.

[0016] 3. By rotating the motor to drive the driving gear to rotate counterclockwise, the engagement between the motor and the driven gear can drive the rotating shaft to rotate clockwise, thereby driving the mounting plate to rotate synchronously. When the mounting plate rotates, the liquid storage cylinder and the rotating rod are driven to rotate around the circular plate, so that the matching gear and the annular rack are engaged, thereby driving the rotating rod to rotate, and through the engagement of the two first sprockets and the first chain, the stirring shaft and multiple stirring rods are driven to rotate synchronously to stir the solution in the liquid storage cylinder, so that the solution is evenly mixed and the coating effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of this embodiment; Figure 2 This is a schematic diagram of a partial cutaway structure of a workbench in this embodiment; Figure 3 for Figure 2 The enlarged structural diagram at A in the middle; Figure 4 This is a schematic diagram of a partial cross-section structure of the air box in this embodiment; Figure 5 Schematic diagram of the structural connection between the annular rack and the drive motor in this embodiment; Figure 6 This is a schematic diagram of the partial cross-section structure of the square plate, liquid storage cylinder, and side block in this embodiment; Figure 7 for Figure 6 The enlarged structural diagram at B in the middle; Figure 8 This is a schematic diagram of a partial cutaway structure of the mounting plate in this embodiment; Fig. 9 for Figure 8 The enlarged structural diagram at C in the middle; Fig.10This is a schematic diagram of the enlarged structure of the extrusion plate in this embodiment; Fig.11 It is a schematic diagram of the partial structural connection between the extrusion plate and the arc-shaped extrusion plate in this embodiment; Fig.12 It is a schematic diagram of the partial cross-section structure of the liquid storage tank and the side panel in this embodiment.

[0018] The accompanying drawings are marked as follows: 1. workbench; 2. lifting screw rod; 3. fixing plate; 4. lifting motor; 5. rectangular slider; 6. U-shaped frame; 7. hydraulic cylinder; 8. round plate; 9. fixed shaft; 10. lifting ring; 11. connecting rod; 12. T-shaped sliding hole; 13. first limit shaft; 14. electric telescopic rod; 15. snap ring; 16. arc-shaped fixing plate; 17. sensor; 18. suction cup; 19. air pipe; 20. block; 21. piston plate; 22. U-shaped connecting rod; 23. air box; 24. annular rack; 25. rotating shaft; 26. driven gear; 27. driving gear; 28. rotating motor; 29. ​​U-shaped Mounting plate; 30, square plate; 31, liquid storage cylinder; 32, stirring shaft; 33, stirring rod; 34, liquid outlet pipe; 35, first sprocket; 36, first chain; 37, rotating rod; 38, matching gear; 39, first solenoid valve; 40, lower sponge brush; 41, shunt pipe; 42, extrusion plate; 43, screw; 44, second sprocket; 45, second chain; 46, second limit shaft; 47, driving motor; 48, hose; 49, connecting block; 50, liquid storage tank; 51, arc extrusion plate; 52, side plate; 53, guide shaft; 54, compression spring; 55, square lifting column; 56, side sponge brush. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still belong to the scope of protection of the present application.

[0020] Figure 1-Figure 12 The best embodiment of the present invention is shown below in conjunction with the attached Figure 1-Figure 12 The present invention is further described.

[0021] A galvanized sheet production passivation treatment device comprises a workbench 1, a clamping mechanism is arranged on the top of the workbench 1, the clamping mechanism is used to fix a circular plate, the clamping mechanism has two clamping modes, and the circular plate can be fixed from the circumference and the bottom respectively, a coating mechanism is arranged on the top of the workbench 1, the coating mechanism is used to evenly coat the top and circumference of the circular plate, the coating mechanism comprises a U-shaped frame 6, the U-shaped frame 6 is fixedly installed on the top of the workbench 1, a circular plate 8 is lifted and installed below the U-shaped frame 6, a U-shaped mounting plate 29 is arranged at the bottom end of the circular plate 8, the U-shaped mounting plate 29 is rotatably connected to the circular plate 8, and the U-shaped mounting plate 29 is rotatably connected to the circular plate 8. A liquid storage cylinder 31 is arranged on the top of the plate 29, and a stirring assembly is arranged in the liquid storage cylinder 31. The stirring assembly is driven by the rotation of the U-shaped mounting plate 29. A lower sponge brush 40 is fixedly arranged on the bottom inner wall of the U-shaped mounting plate 29. An adjusting assembly is arranged on the U-shaped mounting plate 29. The adjusting assembly is used to adjust the liquid absorption length of the lower sponge brush 40. Two side sponge brushes 56 are movably installed at the bottom of the U-shaped mounting plate 29. The two side sponge brushes 56 are closely connected. The lower sponge brush 40 and the two side sponge brushes 56 can absorb the liquid in the liquid storage cylinder 31. The two side sponge brushes 56 both realize the position adjustment function through the adjusting assembly.

[0022] In order to drive the four rectangular sliders 5 to move synchronously, the following features are also specifically provided: The clamping mechanism also includes four rectangular sliders 5. Four T-shaped sliding holes 12 are opened on the top of the workbench 1. The opposite inner walls of the four T-shaped sliding holes 12 are fixedly installed with first limit shafts 13. The four rectangular sliders 5 are slidably installed on the four first limit shafts 13 respectively. Two clamping assemblies are arranged on the sides of the four rectangular sliders 5. The two clamping assemblies have a switching function and can fix the circular plate in different positions. A lifting screw rod 2 is rotatably installed at the bottom of the workbench 1. A fixed plate 3 is rotatably installed at the bottom end of the lifting screw rod 2. The fixed plate 3 is connected to the opposite side of the workbench 1 through a fixed shaft 9. The bottom of the fixed plate 3 A lifting motor 4 is provided in the part, and the output shaft of the lifting motor 4 is connected to the bottom end of the lifting screw rod 2. A lifting ring 10 is threadedly installed on the lifting screw rod 2. A circular hole is opened at the top of the lifting ring 10, and a fixed shaft 9 is slidably installed in the circular hole. Four connecting rods 11 are rotatably installed on the outer wall of the circumference of the lifting ring 10. The other ends of the four connecting rods 11 are rotatably installed on the bottom of the four rectangular sliders 5 respectively. The lifting screw rod 2 is driven to rotate by the lifting motor 4, so that the lifting ring 10 can realize the lifting movement. Through the connection of the four connecting rods 11, the four rectangular sliders 5 can be driven to realize the function of synchronously moving toward or away from the axis.

[0023] In order to fix the circular plate through the peripheral outer wall, the following features are also specifically provided: One of the clamping components includes an electric telescopic rod 14, a through hole is opened on the side of the rectangular slider 5, the electric telescopic rod 14 is fixedly installed in the through hole, an arc-shaped fixing plate 16 is fixedly installed on the output end of the electric telescopic rod 14, both sides of the arc-shaped fixing plate 16 are designed with arc surfaces, one of the arc surfaces is opened with a sensing groove, and a sensor 17 is fixedly installed in the sensing groove, and two clamping rings 15 are fixedly sleeved on the output end of the electric telescopic rod 14, and the electric telescopic rod 14 is driven to move synchronously by the rectangular slider 5, which can drive the arc-shaped fixing plate 16 to fix the peripheral outer wall of the circular plate through the peripheral outer wall.

[0024] In order to fix the circular plate through the bottom, the following features are also set: Another clamping assembly includes a suction cup 18, an air box 23 is fixedly installed on the side of the rectangular slider 5, a smooth hole is opened on the outer wall of the peripheral side of the arc-shaped fixed plate 16, and an air pipe 19 is slidably installed in the smooth hole. One end of the air pipe 19 is connected to the inside of the suction cup 18, and the suction cup 18 is placed horizontally. Specifically, the horizontal height of the top of the suction cup 18 is five millimeters higher than the horizontal height of the top of the workbench 1, so that the circular plate fits the suction cup 18 after being placed. The other end of the air pipe 19 is connected to the inner wall of the peripheral side of the air box 23, and a piston plate 21 is slidably installed in the air box 23. A rectangular sliding hole is opened on the top of the air box 23, and the piston plate 21 slides in the rectangular sliding hole. A U-shaped connecting rod 22 is installed, one end of the U-shaped connecting rod 22 is fixedly connected to the side of the piston plate 21, and a clamping block 20 is fixedly installed on the top of the other end of the U-shaped connecting rod 22. The clamping block 20 is clamped and installed between the two clamping rings 15. It is squeezed by the arc-shaped fixed plate 16 to drive the output end of the electric telescopic rod 14 to contract. It can move synchronously through the two clamping rings 15 and the clamping block 20, and the U-shaped connecting rod 22 and the piston plate 21 can be driven to move synchronously through the clamping block 20. Through the movement of the piston plate 21, the gas in the suction cup 18 is sucked into the air box 23, so that the suction cup 18 is in a negative pressure state, and the circular plate is fixed through the bottom.

[0025] In order to drive the mounting plate 29 to realize the rotation function, the following features are also specifically provided: The smearing mechanism also includes a hydraulic cylinder 7. A circular hole is opened on the top of the U-shaped frame 6. The hydraulic cylinder 7 is fixedly installed in the circular hole. The output end of the hydraulic cylinder 7 is fixedly connected to the top of the circular plate 8. A rotating shaft 25 is rotatably installed at the bottom of the circular plate 8. A rotating motor 28 is fixedly installed on the top of the circular plate 8. The output shaft of the rotating motor 28 passes through the circular plate 8 and is fixedly sleeved with a driving gear 27. The peripheral outer wall of the rotating shaft 25 is fixedly sleeved with a driven gear 26 meshing with the driving gear 27. The bottom end of the rotating shaft 25 is fixedly connected to the top of the U-shaped mounting plate 29. The driving gear 27 is driven to rotate counterclockwise by the rotating motor 28, and the rotating shaft 25 can be driven to rotate clockwise through the meshing with the driven gear 26, thereby driving the mounting plate 29, the lower sponge brush 40, and the two side sponge brushes 56 to rotate synchronously.

[0026] In order to make the liquid in the liquid storage cylinder 31 more evenly stirred, the following features are also specifically provided: The stirring assembly includes a stirring shaft 32, a square plate 30 is fixedly arranged on the top of the U-shaped mounting plate 29, a liquid storage cylinder 31 is fixedly arranged on the top of the square plate 30, a side block is fixedly arranged on the peripheral outer wall of the liquid storage cylinder 31, a transmission cavity is jointly opened in the liquid storage cylinder 31 and the side block, the bottom end of the stirring shaft 32 is rotatably mounted on the bottom inner wall of the liquid storage cylinder 31, the top end of the stirring shaft 32 extends into the transmission cavity and is rotatably mounted on the top inner wall of the transmission cavity, a plurality of stirring rods 33 are fixedly arranged on the peripheral outer wall of the stirring shaft 32, a lower hole is opened on the bottom inner wall of the transmission cavity, a rotating rod 37 is rotatably mounted on the top inner wall of the transmission cavity, and the bottom end of the rotating rod 37 extends to the outside of the side block and is rotatably mounted on the square plate 30 At the top, the outer walls of the circumference of the stirring shaft 32 and the rotating rod 37 are fixedly sleeved with first sprockets 35, and the two first sprockets 35 are jointly meshed with a first chain 36, and the outer wall of the circumference of the rotating rod 37 is fixedly sleeved with a matching gear 38, and the outer wall of the circumference of the circular plate 8 is fixedly sleeved with an annular rack 24, and the matching gear 38 is meshed and installed with the annular rack 24. By rotating the liquid storage cylinder 31 and the rotating rod 37 around the circular plate 8, the matching gear 38 and the annular rack 24 can be meshed, thereby driving the rotating rod 37 to rotate, and through the meshing action of the two first sprockets 35 and the first chain 36, the stirring shaft 32 and the multiple stirring rods 33 are driven to rotate synchronously to stir the solution in the liquid storage cylinder 31.

[0027] In order to make the solution flow evenly to the lower sponge brush 40, the following features are also specifically provided: The smearing mechanism also includes a liquid outlet pipe 34 and multiple diversion pipes 41. A diversion chamber is opened in the U-shaped mounting plate 29. The top inner wall of the diversion chamber and the bottom inner wall of the liquid storage cylinder 31 are jointly opened with a liquid outlet hole. The liquid outlet pipe 34 is fixedly arranged in the liquid outlet hole. A first solenoid valve 39 is arranged on the liquid outlet pipe 34. A plurality of diversion holes are opened on the bottom inner wall of the diversion chamber. Multiple diversion pipes 41 are respectively fixedly arranged in the plurality of diversion holes. Second solenoid valves are arranged on the multiple diversion pipes 41. The bottom ends of the multiple diversion pipes 41 are in contact with the top of the lower sponge brush 40. The multiple second solenoid valves arranged on the bottom inner wall of the diversion chamber can control the multiple diversion pipes 41 respectively, so that the solution flows to the lower sponge brush 41 through the diversion pipes 41. By opening the second solenoid valve on the right side of the adjusting component and closing the second solenoid valve on the left side of the adjusting component, it can be avoided that the solution soaks all the lower sponge brushes 40, which will cause waste when smearing circular plates with smaller diameters.

[0028] In order to avoid waste when applying to circular plates with smaller diameters, the following features are also set: The adjustment assembly includes two extrusion plates 42. Two screw rods 43 are rotatably mounted on the inner wall of the side of the U-shaped mounting plate 29. The other ends of the two screw rods 43 extend outside the U-shaped mounting plate 29 and are fixedly sleeved with second sprockets 44. The two second sprockets 44 are meshed with a second chain 45. A drive motor 47 is fixedly mounted on the side of the U-shaped mounting plate 29. The output shaft of the drive motor 47 is connected to the end of one of the screw rods 43. The two extrusion plates 42 are respectively threadedly mounted on the two screw rods 43. The sides of the two extrusion plates 42 close to each other are The two extrusion plates 42 are both semicircular in design, and the sides close to each other squeeze the two sides of the lower sponge brush 40 respectively. The sides of the two extrusion plates 42 are provided with limiting holes, and the second limiting shafts 46 are slidably installed in the two limiting holes. The two ends of the two second limiting shafts 46 are fixedly installed on the relative inner walls of the U-shaped mounting plate 29. Through the horizontal movement of the two extrusion plates 42, the lower sponge brush 40 can be squeezed at any position of the lower sponge brush 40, so that the lower sponge brush 40 is separated by squeezing, avoiding the waste of solution.

[0029] In order to make the solution flow evenly to the two side sponge brushes 56, the following features are also specifically provided: The smearing mechanism also includes a liquid storage tank 50, the sides of the two squeezing plates 42 are fixedly installed with connecting blocks 49, the top of the liquid storage tank 50 is fixedly connected to the bottom of the two connecting blocks 49, a hose 48 is fixedly installed on the side inner wall of the liquid storage tank 50, the other end of the hose 48 is connected to the side inner wall of the diversion chamber, and a third solenoid valve is arranged on the hose 48, an arc-shaped squeezing plate 51 is fixedly installed on the bottom of the liquid storage tank 50, a side plate 52 is fixedly installed on the side of the liquid storage tank 50, a square groove is opened at the bottom of the side plate 52, a guide shaft 53 is fixedly installed on the top inner wall of the square groove, a square lifting column 55 is slidably installed on the outer wall of the peripheral side of the guide shaft 53, and a square lifting column 55 is slidably installed on the peripheral side of the guide shaft 53. A compression spring 54 is sleeved on the side outer wall, and two side sponge brushes 56 are fixedly installed on the side of the side plate 52 and the side of the square lifting column 55 respectively. A drainage hole is opened on the side inner wall of the liquid storage tank 50, and the drainage hole corresponds to one of the side sponge brushes 56. By opening the third solenoid valve, the solution in the diversion cavity can flow into the liquid storage tank 50, thereby soaking the side sponge brush 56 through the drainage hole. Since the two side sponge brushes 56 are closely arranged, the other side sponge brush 56 can be soaked. Through the lifting and lowering movement of the square lifting column 55 in the square groove, it can adapt to circular plates of different thicknesses, thereby realizing the coating of the surrounding outer wall of the circular plate.

[0030] The working principle and use process of the present invention are as follows: when in use, first place the circular plate on the top of the workbench 1, and then start the lifting motor 4 to drive the lifting screw 2 to rotate, so that the lifting ring 10 moves downward through the action of the thread and the limiting action of the fixed shaft 9, and the four rectangular sliders 5 are driven to move synchronously in the axial direction under the connection action of the four connecting rods 11. When the four rectangular sliders 5 move, they drive multiple electric telescopic rods 14 and multiple arc-shaped fixed plates 16 to move synchronously, and the circular plate is fixed by multiple arc-shaped fixed plates 16. With this arrangement, circular plates of different diameters can be quickly fixed, so that the circular plate can be aligned with the coating mechanism.

[0031] Start the hydraulic cylinder 7 to drive the circular plate 8, the rotating shaft 25, and the U-shaped mounting plate 29 to move downward synchronously, so that the bottom of the lower sponge brush 40 contacts the top of the circular steel plate, and then start the driving motor 47. Under the meshing action of the two second sprockets 44 and the second chain 45, the two screws 43 rotate synchronously. Through the thread action and the limiting action of the two second limiting shafts 46, the two extrusion plates 42 can move horizontally synchronously. When the two extrusion plates 42 move synchronously, they can clamp different positions of the lower sponge brush 40, thereby isolating the liquid absorption position of the lower sponge brush 40 to prevent the situation where part of the lower sponge brush 40 cannot contact the circular plate when the diameter is small, thereby causing waste of solution.

[0032] When the two extrusion plates 42 move synchronously, the two connecting blocks 49, the liquid storage tank 50, the arc-shaped extrusion plate 51 and the side plate 52 are driven to move synchronously. When the side plate 52 moves, the square lifting column 55 and the two side sponge brushes 56 are driven to move synchronously, thereby contacting the peripheral outer wall of the circular plate. Due to the arrangement of the guide shaft 53 and the compression spring 54, the square lifting column 55 can move up and down in the square groove, thereby adapting to circular plates of different thicknesses. The positions of the two extrusion plates 42 correspond to the positions of the two side sponge brushes 56, which can ensure that the lower sponge brush 40 and the two side sponge brushes 56 can fully apply the top and peripheral outer wall of the circular plate, and the effect is better.

[0033] The rotating motor 28 is started to drive the driving gear 27 to rotate counterclockwise, thereby driving the driven gear 26 and the rotating shaft 25 to rotate synchronously clockwise through meshing. When the rotating shaft 25 rotates, when the square plate 30 and the liquid storage cylinder 31 rotate synchronously, the rotating rod 37 is driven to rotate through the meshing action of the matching gear 38 and the annular rack 24. Through the meshing action of the two first sprocket wheels 35 and the first chain 36, the stirring shaft 32 and the multiple stirring rods 33 are driven to rotate synchronously to stir the solution in the liquid storage cylinder 31, so that the solution is mixed more evenly, and at the same time, the first solenoid valve 39 and part of the first solenoid valve 39 are opened. The second solenoid valve and the third solenoid valve allow the liquid in the liquid storage cylinder 31 to flow into the diversion chamber, and flow to the lower sponge brush 40 through a part of the diversion pipe 41 to soak the lower sponge brush 40. At the same time, the solution flows into the liquid storage tank 50 through the hose 48, and soaks the two side sponge brushes 56 through the drainage holes on the liquid storage tank 50. When the rotating shaft 25 rotates, the U-shaped mounting plate 29, the square plate 30, the liquid storage cylinder 31, the lower sponge brush 40, and the two side sponge brushes 56 are synchronously driven to rotate synchronously, and the surface of the circular plate is evenly coated with the lower sponge brush 40 and the two side sponge brushes 56, thereby achieving passivation treatment.

[0034] When the two side sponge brushes 56 are applying paint to the outer wall of the circumference of the circular plate, the arc-shaped extrusion plate 51 can be driven to rotate synchronously. When the arc-shaped extrusion plate 51 contacts the sensor 17 on the arc-shaped fixing plate 16, the limiting state of the electric telescopic rod 14 connected to the arc-shaped fixing plate 16 can be released, so that the arc-shaped fixing plate 16 is squeezed by the arc surface of the arc-shaped extrusion plate 51. When the output end of the electric telescopic rod 14 is in the process of contraction, the two clamping rings 15 can be driven to move synchronously. Since the clamping ring 15 is clamped with the clamping block 20, the clamping block 20, the U-shaped connecting rod 22, and the piston plate 21 can be driven to move synchronously. When the piston plate 21 moves, the gas inside the suction cup 18 can be sucked out through the air pipe 19, so that the inside is in a negative pressure state, so that the circular plate is fixed by the bottom, thereby realizing the switching fixation, so that while the outer wall of the circumference of the circular plate is evenly applied, its stability is guaranteed, and after application, the arc-shaped fixing plate 16 will not be reset immediately, avoiding affecting the solution just applied.

[0035] The above is only a preferred embodiment of the present invention, and does not limit the present invention in other forms. Any technician familiar with the profession may use the above disclosed technical content to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention still belongs to the protection scope of the technical solution of the present invention.

Claims

1. A galvanized sheet production passivation treatment device, comprising a workbench (1), characterized in that: The workbench (1) is provided with a clamping mechanism on the top, and the clamping mechanism is used to fix the circular plate. The clamping mechanism has two clamping modes, and can fix the circular plate from the circumference and the bottom respectively. The workbench (1) is provided with a coating mechanism on the top, and the coating mechanism is used to evenly coat the top and circumference of the circular plate. The coating mechanism comprises a U-shaped frame (6), and the U-shaped frame (6) is fixedly mounted on the top of the workbench (1). A circular plate (8) is lifted and mounted below the U-shaped frame (6). A U-shaped mounting plate (29) is provided at the bottom end of the circular plate (8), and the U-shaped mounting plate (29) is rotatably connected to the circular plate (8). A liquid storage cylinder is provided on the top of the U-shaped mounting plate (29). (31), a stirring assembly is arranged in the liquid storage cylinder (31), and the stirring assembly is driven by the rotation of the U-shaped mounting plate (29); a lower sponge brush (40) is fixedly arranged on the inner wall of the bottom of the U-shaped mounting plate (29); an adjustment assembly is arranged on the U-shaped mounting plate (29), and the adjustment assembly is used to adjust the liquid absorption length of the lower sponge brush (40); two side sponge brushes (56) are movably installed at the bottom of the U-shaped mounting plate (29), and the two side sponge brushes (56) are closely connected, and the lower sponge brush (40) and the two side sponge brushes (56) can absorb the liquid in the liquid storage cylinder (31), and the two side sponge brushes (56) can realize the position adjustment function through the adjustment assembly.

2. A galvanized sheet production passivation treatment device according to claim 1, characterized in that: The clamping mechanism further comprises four rectangular sliders (5), the top of the workbench (1) is provided with four T-shaped sliding holes (12), the opposite inner walls of the four T-shaped sliding holes (12) are fixedly mounted with first limit shafts (13), the four rectangular sliders (5) are respectively slidably mounted on the four first limit shafts (13), the sides of the four rectangular sliders (5) are respectively provided with two clamping assemblies, the two clamping assemblies have a switching function, and the circular plate is fixed at different positions, the bottom of the workbench (1) is rotatably mounted with a lifting screw rod (2), and the bottom end of the lifting screw rod (2) is rotatably mounted with a fixing plate (3) ), the fixed plate (3) is connected to the opposite side of the workbench (1) through a fixed shaft (9), a lifting motor (4) is arranged at the bottom of the fixed plate (3), the output shaft of the lifting motor (4) is connected to the bottom end of the lifting screw (2), a lifting ring (10) is threadedly mounted on the lifting screw (2), a circular hole is opened at the top of the lifting ring (10), the fixed shaft (9) is slidably mounted in the circular hole, four connecting rods (11) are rotatably mounted on the outer wall of the circumference of the lifting ring (10), and the other ends of the four connecting rods (11) are rotatably mounted on the bottom of the four rectangular sliders (5).

3. A galvanized sheet production passivation treatment device according to claim 2, characterized in that: One of the clamping assemblies comprises an electric telescopic rod (14), a through hole is provided on the side of the rectangular slider (5), the electric telescopic rod (14) is fixedly installed in the through hole, an arc-shaped fixing plate (16) is fixedly installed on the output end of the electric telescopic rod (14), both sides of the arc-shaped fixing plate (16) are designed as arc-shaped surfaces, one of the arc-shaped surfaces is provided with a sensing groove, a sensor (17) is fixedly installed in the sensing groove, and two clamping rings (15) are fixedly sleeved on the output end of the electric telescopic rod (14).

4. A galvanized sheet production passivation treatment device according to claim 3, characterized in that: Another clamping assembly comprises a suction cup (18), an air box (23) is fixedly mounted on the side of the rectangular slider (5), a smooth hole is provided on the peripheral outer wall of the arc-shaped fixed plate (16), an air pipe (19) is slidably mounted in the smooth hole, one end of the air pipe (19) is connected to the inside of the suction cup (18), the suction cup (18) is placed horizontally, the other end of the air pipe (19) is connected to the peripheral inner wall of the air box (23), a piston plate (21) is slidably mounted in the air box (23), a rectangular sliding hole is provided on the top of the air box (23), a U-shaped connecting rod (22) is slidably mounted in the rectangular sliding hole, one end of the U-shaped connecting rod (22) is fixedly connected to the side of the piston plate (21), and a clamping block (20) is fixedly mounted on the top of the other end of the U-shaped connecting rod (22), and the clamping block (20) is clamped and mounted between the two clamping rings (15).

5. A galvanized sheet production passivation treatment device according to claim 1, characterized in that: The smearing mechanism further comprises a hydraulic cylinder (7). A circular hole is formed at the top of the U-shaped frame (6). The hydraulic cylinder (7) is fixedly mounted in the circular hole. The output end of the hydraulic cylinder (7) is fixedly connected to the top of the circular plate (8). A rotating shaft (25) is rotatably mounted at the bottom of the circular plate (8). A rotating motor (28) is fixedly mounted at the top of the circular plate (8). The output shaft of the rotating motor (28) passes through the circular plate (8) and is fixedly sleeved with a driving gear (27). A driven gear (26) meshing with the driving gear (27) is fixedly sleeved on the outer wall of the circumferential side of the rotating shaft (25). The bottom end of the rotating shaft (25) is fixedly connected to the top of the U-shaped mounting plate (29).

6. A galvanized sheet production passivation treatment device according to claim 1, characterized in that: The stirring assembly comprises a stirring shaft (32); a square plate (30) is fixedly arranged on the top of the U-shaped mounting plate (29); the liquid storage cylinder (31) is fixedly arranged on the top of the square plate (30); a side block is fixedly arranged on the peripheral outer wall of the liquid storage cylinder (31); a transmission cavity is jointly provided in the liquid storage cylinder (31) and the side block; the bottom end of the stirring shaft (32) is rotatably mounted on the bottom inner wall of the liquid storage cylinder (31); the top end of the stirring shaft (32) extends into the transmission cavity and is rotatably mounted on the top inner wall of the transmission cavity; a plurality of stirring rods (33) are fixedly arranged on the peripheral outer wall of the stirring shaft (32); and the transmission cavity is provided in the inner wall of the transmission cavity. A lower hole is provided on the bottom inner wall of the dynamic cavity, a rotating rod (37) is rotatably mounted on the top inner wall of the transmission cavity, the bottom end of the rotating rod (37) extends outside the side block and is rotatably mounted on the top of the square plate (30), the stirring shaft (32) and the peripheral outer wall of the rotating rod (37) are both fixedly sleeved with a first sprocket (35), the two first sprockets (35) are jointly meshed with a first chain (36), the peripheral outer wall of the rotating rod (37) is fixedly sleeved with a matching gear (38), the peripheral outer wall of the circular plate (8) is fixedly sleeved with an annular rack (24), and the matching gear (38) is meshed with the annular rack (24).

7. A galvanized sheet production passivation treatment device according to claim 1, characterized in that: The smearing mechanism further comprises a liquid outlet pipe (34) and a plurality of shunt pipes (41); a shunt cavity is provided in the U-shaped mounting plate (29); a liquid outlet hole is provided on the top inner wall of the shunt cavity and the bottom inner wall of the liquid storage cylinder (31); the liquid outlet pipe (34) is fixedly arranged in the liquid outlet hole; a first solenoid valve (39) is provided on the liquid outlet pipe (34); a plurality of shunt holes are provided on the bottom inner wall of the shunt cavity; a plurality of shunt pipes (41) are respectively fixedly arranged in the plurality of shunt holes; a second solenoid valve is provided on each of the plurality of shunt pipes (41); and the bottom ends of the plurality of shunt pipes (41) are in contact with the top of the lower sponge brush (40).

8. A galvanized sheet production passivation treatment device according to claim 7, characterized in that: The adjustment assembly comprises two extrusion plates (42), two screw rods (43) are rotatably mounted on the inner wall of the side of the U-shaped mounting plate (29), the other ends of the two screw rods (43) extend outside the U-shaped mounting plate (29) and are fixedly sleeved with a second sprocket (44), a second chain (45) is meshedly mounted on the two second sprockets (44), a driving motor (47) is fixedly mounted on the side of the U-shaped mounting plate (29), and the output shaft of the driving motor (47) is connected to the end of one of the screw rods (43) Then, the two extrusion plates (42) are respectively threadedly mounted on the two screw rods (43), and the sides of the two extrusion plates (42) close to each other are both semicircular in design. The sides of the two extrusion plates (42) close to each other respectively squeeze the two sides of the lower sponge brush (40), and the sides of the two extrusion plates (42) are provided with limiting holes, and the second limiting shafts (46) are slidably mounted in the two limiting holes, and the two ends of the two second limiting shafts (46) are fixedly mounted on the opposite inner walls of the U-shaped mounting plate (29).

9. A galvanized sheet production passivation treatment device according to claim 8, characterized in that: The smearing mechanism further comprises a liquid storage tank (50), the sides of the two extrusion plates (42) are fixedly mounted with connection blocks (49), the top of the liquid storage tank (50) is fixedly connected to the bottoms of the two connection blocks (49), a hose (48) is fixedly mounted on the inner wall of the side of the liquid storage tank (50), the other end of the hose (48) is connected to the inner wall of the side of the diversion chamber, a third solenoid valve is arranged on the hose (48), an arc-shaped extrusion plate (51) is fixedly mounted on the bottom of the liquid storage tank (50), and a side valve (48) is fixedly mounted on the side of the liquid storage tank (50). The side plate (52) is provided with a square groove at the bottom, a guide shaft (53) is fixedly mounted on the top inner wall of the square groove, a square lifting column (55) is slidably mounted on the peripheral outer wall of the guide shaft (53), a compression spring (54) is sleeved on the peripheral outer wall of the guide shaft (53), two side sponge brushes (56) are respectively fixedly mounted on the side of the side plate (52) and the side of the square lifting column (55), and a drainage hole is provided on the side inner wall of the liquid storage box (50), and the drainage hole corresponds to one of the side sponge brushes (56).

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