Anticorrosive primer coating equipment

Abstract

The utility model relates to the field of anti-rust paint coating, and particularly discloses anti-rust primer coating equipment which comprises a workbench, the top of the workbench is fixedly connected with two sets of mounting plates, fixing assemblies are arranged in the two sets of mounting plates, a coating assembly is arranged between the two sets of fixing plates, a second lead screw is driven by a driving part to rotate, and the second lead screw is driven by a driving part to rotate. When a second lead screw rotates, a connecting block is driven to move in a mounting groove through thread transmission, and at the moment, a polishing pad at the top of a connecting plate is tightly attached to the bottom of the steel pipe under the action of an elastic piece. And the connecting blocks can polish and clean the outer surface of the steel pipe in the moving process, so that smudginess or rust existing outside the steel pipe is cleaned, and the situation that the smudginess or rust affects the use effect of antirust paint is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-rust paint coating, in particular to an anti-rust primer coating device. Background Art

[0002] Anti-rust paint is a coating that can protect metal surfaces from chemical or electrochemical corrosion from the atmosphere, seawater, etc. Steel pipes, as the basic steel structure, are usually used in construction, transportation and industrial fields. They are a multi-purpose material with broad application prospects. In order to increase the service life of steel pipes, anti-rust paint is usually applied to the surface of the steel pipes for protection.

[0003] For example, a Chinese patent with the publication number CN220027473U discloses an anti-rust paint spraying structure, including a plurality of support columns, a support plate fixedly connected to the top of the plurality of support columns, two support bars fixedly connected to the top of the support plate, cylinders installed at the front and rear ends of the two fixed frames, a clamping block fixedly connected to one end of the plurality of cylinder pistons, a drive assembly installed on one side of the outer wall of one of the rotating shafts; two sliding bars fixedly connected between the two support bars, a moving assembly installed between the two sliding bars, and a spraying assembly installed on the other side of the top of the support plate. The utility model is designed with a drive assembly, a plurality of cylinders, a plurality of clamping blocks and a spraying assembly, so that the anti-rust paint spraying structure can fix the product and rotate it, so that the product can be sprayed comprehensively, and at the same time, the spraying assembly can automatically spray the fixed product, thereby greatly reducing the fatigue intensity of the staff.

[0004] However, when the steel pipe is being coated with anti-rust paint, there may be dirt or rust on its surface. At this time, if the anti-rust paint is directly applied to the steel pipe, a gap will exist between the anti-rust paint and the steel pipe, resulting in failure to achieve a good anti-rust effect. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-rust primer coating device to solve the following technical problems:

[0006] How to avoid dirt or rust on the surface of steel pipes affecting the effectiveness of anti-rust paint.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] An anti-rust primer coating device comprises a workbench, wherein two groups of mounting plates are fixedly connected to the top of the workbench, fixing components are arranged in the two groups of mounting plates, and a coating component is arranged between the two groups of mounting plates;

[0009] The top of the workbench is provided with an installation groove, in which a second screw rod is rotatably connected, the outer wall of the second screw rod is threadedly connected to a connecting block, the top of the connecting block is fixedly connected to the installation block, the top of the installation block is slidably connected to a connecting rod, the top of one end of the connecting rod away from the connecting block is fixedly connected to a telescopic rod, the top of the telescopic rod is fixedly connected to a connecting plate, the top of the connecting plate is fixedly connected to a grinding pad, an elastic part is provided between the connecting plate and the connecting rod, a driving part is provided in the workbench, the driving part is used to drive the second screw rod, and a rotating assembly is provided on the top of the workbench.

[0010] Furthermore, the elastic member is a second spring fixedly connected between the connecting plate and the connecting rod, a movable groove is provided at the top of the mounting block, a movable block is slidably connected in the movable groove, the top of the movable block is fixedly connected to the lower surface of the connecting rod, the outer wall of the movable block is fixedly connected to the first spring, and the ends of the two groups of the first springs away from the movable blocks are fixedly connected to the inner wall of the movable groove, a fixed plate is fixedly connected to the top of the workbench and located on one side of the mounting groove, and a plurality of groups of arc blocks are fixedly connected to the outer wall of a side of the fixed plate close to the connecting rod, and the plurality of arc blocks are equidistantly distributed.

[0011] Furthermore, a negative pressure chamber is provided in the connecting plate, and a plurality of negative pressure holes are opened on the top of the grinding pad. The negative pressure holes are arranged through the negative pressure chamber. A negative pressure pump is fixedly connected to the top of the connecting rod, and the negative pressure pump is connected to the negative pressure chamber through a negative pressure pipe.

[0012] Furthermore, the inner walls on both sides of the installation groove are provided with sliding grooves, and the outer wall of the connecting block is fixedly connected with two groups of sliding blocks, the sliding blocks correspond to the sliding grooves one by one, the sliding blocks are slidably installed in the sliding grooves, and the sizes of the sliding blocks are adapted to the sliding grooves.

[0013] Furthermore, the fixing assembly includes connecting holes opened on the outer walls of two groups of mounting plates, each of the connecting holes is fixedly connected to a bearing, each of the inner walls of the bearings is fixedly connected to a connecting shaft, the facing surfaces of the two groups of connecting shafts are fixedly connected to mounting seats, the two groups of mounting seats are rotatably connected to bidirectional screw rods, the outer walls at both ends of the two groups of bidirectional screw rods are threadedly connected to fixing blocks, the tops of the two groups of mounting seats are rotatably connected to knobs, and the knobs are fixedly connected to the bidirectional screw rods.

[0014] Furthermore, the rotating assembly includes a first motor fixedly connected to the top of the mounting base, a group of connecting shafts in the two groups of connecting shafts close to the first motor has a driving shaft fixedly connected to the outer end, and a driving belt is wound between the output shaft of the first motor and the driving shaft.

[0015] Furthermore, the coating assembly includes a first screw rod rotatably connected between two groups of mounting plates, a rectangular block is threadedly connected to the outer wall of the first screw rod, a paint head is fixedly connected to the bottom of the rectangular block, a liquid storage tank is fixedly connected to the top of the rectangular block, and the liquid storage tank is connected to the paint head through an infusion tube, and a limiting rod is fixedly connected between the two groups of mounting plates and on both sides of the first screw rod, the rectangular block is sleeved on the outside of the limiting rod, and a second motor is fixedly connected to the outer wall of one group of the mounting plates, and the output shaft of the second motor is fixedly connected to the first screw rod.

[0016] Beneficial effects of the utility model:

[0017] (1) The utility model drives the second screw to rotate through the driving member. When the second screw rotates, it drives the connecting block to move in the installation groove through the threaded transmission. At this time, the grinding pad on the top of the connecting plate is tightly fitted with the bottom of the steel pipe under the action of the elastic member. Through such an arrangement, since the steel pipe is rotating at this time and the grinding pad on the top of the connecting plate is tightly fitted with the bottom of the steel pipe, the connecting block will grind and clean the outer surface of the steel pipe during the movement, thereby cleaning the dirt or rust on the outside of the steel pipe, avoiding the situation where the dirt or rust affects the use effect of the anti-rust paint.

[0018] (2) In the utility model, since the arc blocks are evenly distributed, the connecting rod can drive the grinding pad to do reciprocating motion during the movement of the connecting rod under the cooperation of the first spring and the arc block, thereby improving the grinding and cleaning effect of the steel pipe and avoiding the situation where dirt or rust affects the use effect of the anti-rust paint. In addition, when the steel pipe rotates at high speed and is polished by the grinding pad, the temperature of the surface of the steel pipe will rise rapidly. Therefore, when the steel pipe is subsequently painted, the surface temperature of the steel pipe can make the anti-rust primer dry quickly, thereby improving the application effect of the anti-rust paint. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a three-dimensional diagram of the utility model;

[0021] Figure 2 It is a plan view of the utility model;

[0022] Figure 3 It is a cross-sectional stereogram of the utility model;

[0023] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 yes Figure 3 Enlarged view of point B in the middle.

[0025] 1. Workbench; 2. Mounting plate; 21. Connecting hole; 22. Bearing; 23. Connecting shaft; 24. Driving shaft; 25. First motor; 26. Driving belt; 3. Mounting seat; 31. Bidirectional screw; 32. Fixed block; 33. Knob; 4. First screw; 41. Liquid storage tank; 42. Rectangular block; 43. Paint head; 44. Limit rod; 45. Second motor; 5. Mounting slot; 51. Second screw; 52. Connecting block; 53. Mounting block; 54. Slide slot; 55. Sliding block; 56. Moving slot; 57. Moving block; 58. First spring; 6. Connecting rod; 61. Telescopic rod; 62. Connecting plate; 63. Grinding pad; 64. Negative pressure hole; 65. Second spring; 66. Negative pressure pump; 7. Fixed plate; 71. Arc block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] A rust-proof primer coating device in the embodiment of the utility model, please refer to the attached drawing Figure 1-Figure 5 As shown, it comprises a workbench 1, two groups of mounting plates 2 are fixedly connected to the top of the workbench 1, fixing components are arranged in the two groups of mounting plates 2, and a coating component is arranged between the two groups of mounting plates 2;

[0028] The top of the workbench 1 is provided with a mounting groove 5, in which a second screw rod 51 is rotatably connected, an outer wall of the second screw rod 51 is threadedly connected to a connecting block 52, a mounting block 53 is fixedly connected to the top of the connecting block 52, a connecting rod 6 is slidably connected to the top of the mounting block 53, a telescopic rod 61 is fixedly connected to the top of one end of the connecting rod 6 away from the connecting block 52, a connecting plate 62 is fixedly connected to the top of the telescopic rod 61, a grinding pad 63 is fixedly connected to the top of the connecting plate 62, an elastic member is provided between the connecting plate 62 and the connecting rod 6, a driving member is provided in the workbench 1, and the driving member is used to drive the second screw rod 51, and a rotating component is provided on the top of the workbench 1;

[0029] When painting the steel pipe, the steel pipe is first fixed by the fixing assembly, and then the steel pipe is rotated by the rotating assembly, and the second screw rod 51 is driven to rotate by the driving member. The driving member is a built-in motor arranged in the workbench 1, and the output shaft of the built-in motor is fixedly connected to one end of the second screw rod 51. During the rotation of the second screw rod 51, the connecting block 52 is driven to move in the mounting groove 5 through the threaded transmission. At this time, the grinding pad 63 on the top of the connecting plate 62 is tightly fitted with the bottom of the steel pipe under the action of the elastic member. Through such a setting, since the steel pipe is rotating at this time, and the grinding pad 63 on the top of the connecting plate 62 is tightly fitted with the bottom of the steel pipe, the connecting block 52 will grind and clean the outer surface of the steel pipe during the movement, thereby cleaning the dirt or rust on the outside of the steel pipe to avoid the situation where dirt or rust affects the use effect of the anti-rust paint.

[0030] As an implementation method of the utility model, please refer to the accompanying drawings Figure 1 , Figure 4 As shown, specifically, the elastic member is a second spring 65 fixedly connected between the connecting plate 62 and the connecting rod 6, a moving groove 56 is provided on the top of the mounting block 53, a moving block 57 is slidably connected in the moving groove 56, the top of the moving block 57 is fixedly connected to the lower surface of the connecting rod 6, the outer wall of the moving block 57 is fixedly connected to a first spring 58, and the ends of the two groups of the first springs 58 away from the moving block 57 are fixedly connected to the inner wall of the moving groove 56, the top of the workbench 1 and located on one side of the mounting groove 5 are fixedly connected with a fixing plate 7, and the outer wall of the fixing plate 7 on one side close to the connecting rod 6 is fixedly connected with multiple groups of arc blocks 71, and the multiple groups of arc blocks 71 are equidistantly distributed

[0031] In the initial state, the first spring 58 is in a stress-free state, and the end of the connecting rod 6 away from the connecting plate 62 is located between the two groups of arc blocks 71. When the steel pipe is cleaned and polished, the driving member and the second screw rod 51 will drive the connecting rod 6 to move synchronously. During the movement, the end of the connecting rod 6 will move to the side away from the fixed plate 7 under the limit of the arc block 71, and stretch and compress the two groups of first springs 58 respectively. Through such a setting, since the arc blocks 71 are equidistantly distributed, the connecting rod 6 can drive the grinding pad 63 to do reciprocating motion during the movement of the connecting rod 6, under the cooperation of the first spring 58 and the arc block 71, thereby improving the grinding and cleaning effect of the steel pipe and avoiding the situation where dirt or rust affects the use effect of the anti-rust paint. In addition, when the steel pipe rotates at high speed and is polished by the grinding pad 63, the temperature of the surface of the steel pipe will rise rapidly. Therefore, when the steel pipe is subsequently painted, the temperature of its surface can make the anti-rust primer dry quickly, thereby improving the application effect of the anti-rust paint.

[0032] As an implementation method of the utility model, please refer to the accompanying drawings Figure 4As shown, specifically, a negative pressure cavity is provided in the connecting plate 62, a plurality of negative pressure holes 64 are provided on the top of the grinding pad 63, and the negative pressure holes 64 are provided through the negative pressure cavity, and a negative pressure pump 66 is fixedly connected to the top of the connecting rod 6, and the negative pressure pump 66 is connected to the negative pressure cavity through a negative pressure pipe;

[0033] When cleaning and grinding, turn on the negative pressure pump 66, which will evacuate the negative pressure chamber through the negative pressure tube, thereby sucking in external debris through the negative pressure hole 64, avoiding dust flying around the steel pipe during the grinding process, and thus avoiding safety hazards caused by workers inhaling too much dust.

[0034] As an implementation of the present invention, please refer to the attached drawings Figure 3 , Figure 4 As shown, specifically, the inner walls on both sides of the installation groove 5 are provided with slide grooves 54, and the outer wall of the connection block 52 is fixedly connected with two sets of sliders 55, and the sliders 55 correspond to the slide grooves 54 one by one, and the sliders 55 are slidably installed in the slide grooves 54, and the sizes of the sliders 55 and the slide grooves 54 are adapted;

[0035] When the connecting block 52 moves, it will drive the slider 55 to move in the slide groove 54. When the slider 55 moves, it can limit the connecting block 52 to avoid the situation where the second screw rod 51 drives the connecting block 52 to rotate synchronously during the rotation process due to excessive friction between the connecting block 52 and the second screw rod 51. It ensures that the connecting block 52 can move stably in the installation groove 5 under the action of the second screw rod 51, thereby ensuring the normal progress of the painting operation.

[0036] As an implementation of the present invention, please refer to the attached drawings Figure 5 As shown, specifically, the fixing assembly includes connecting holes 21 opened on the outer walls of the two groups of mounting plates 2, each of the connecting holes 21 is fixedly connected with a bearing 22, the inner wall of each bearing 22 is fixedly connected with a connecting shaft 23, the facing surfaces of the two groups of connecting shafts 23 are fixedly connected with mounting seats 3, the two groups of mounting seats 3 are rotatably connected with bidirectional screw rods 31, the outer walls of both ends of the two groups of bidirectional screw rods 31 are threadedly connected with fixing blocks 32, the tops of the two groups of mounting seats 3 are rotatably connected with knobs 33, and the knobs 33 are fixedly connected with the bidirectional screw rods 31;

[0037] When painting the steel pipe, first turn the knob 33. During the rotation of the knob 33, the two-way screw rod 31 will be driven to rotate. The rotating two-way screw rod 31 will drive the two sets of fixing blocks 32 to move synchronously through the thread transmission. Since the threads at both ends of the two-way screw rod 31 are in opposite directions, the two-way screw rod 31 will drive the two sets of fixing blocks 32 to move toward both ends of the two-way screw rod 31 at the same time during the rotation. Finally, place one end of the steel pipe between the two sets of fixing blocks 32 and reverse the knob 33. At this time, the two-way screw rod 31 will drive the two sets of fixing blocks 32 to move synchronously toward the steel pipe when rotating, and fix one end of the steel pipe. Then repeat the above operation to fix the other end of the steel pipe, and the steel pipe can be fixed, which is convenient for the subsequent painting operation.

[0038] It should be noted that the fixing block 32 is made of hard rubber, so the friction between the fixing block 32 and the steel pipe can improve the fixing effect on the steel pipe.

[0039] As an implementation of the present invention, please refer to the attached drawings Figure 1 , Figure 2 As shown, specifically, the rotating assembly includes a first motor 25 fixedly connected to the top of the mounting seat 3, a group of connecting shafts 23 close to the first motor 25 in the two groups of connecting shafts 23 is fixedly connected to the outer end of the driving shaft 24, and a driving belt 26 is wound between the output shaft of the first motor 25 and the driving shaft 24.

[0040] When the steel pipe is fixed, the first motor 25 can be turned on. With the cooperation of the driving belt 26 and the first motor 25, the driving shaft 24 can be driven to rotate, thereby realizing the rotation of the steel pipe and improving the cleaning effect of the steel pipe.

[0041] As an implementation of the present invention, please refer to the attached drawings Figure 1 , Figure 2 As shown, specifically, the coating assembly includes a first screw rod 4 rotatably connected between two groups of mounting plates 2, a rectangular block 42 is threadedly connected to the outer wall of the first screw rod 4, a paint head 43 is fixedly connected to the bottom of the rectangular block 42, a liquid storage tank 41 is fixedly connected to the top of the rectangular block 42, and the liquid storage tank 41 is connected to the paint head 43 through an infusion tube, and a limiting rod 44 is fixedly connected between the two groups of mounting plates 2 and on both sides of the first screw rod 4, the rectangular block 42 is sleeved on the outside of the limiting rod 44, and a second motor 45 is fixedly connected to the outer wall of one group of the mounting plates 2, and the output shaft of the second motor 45 is fixedly connected to the first screw rod 4;

[0042] When the steel pipe is cleaned, the second motor 45 can be turned on. The output shaft of the second motor 45 will drive the first screw rod 4 to rotate. Since the rectangular block 42 is sleeved on the outside of the limit rod 44, the limit rod 44 can limit the rectangular block 42 to ensure that the first screw rod 4 can drive the rectangular block 42 to move synchronously and stably during the rotation process, so that the paint head 43 can move normally, ensuring the normal progress of the painting operation.

[0043] Working principle: When painting the steel pipe, first turn the knob 33. During the rotation of the knob 33, the two-way screw rod 31 will be driven to rotate. The rotating two-way screw rod 31 will drive the two sets of fixed blocks 32 to move synchronously through the thread transmission. Since the threads at both ends of the two-way screw rod 31 are in opposite directions, the two-way screw rod 31 will drive the two sets of fixed blocks 32 to move toward both ends of the two-way screw rod 31 at the same time during the rotation. Finally, place one end of the steel pipe between the two sets of fixed blocks 32 and reverse the knob 33. At this time, the two-way screw rod 31 will drive the two sets of fixed blocks 32 to move synchronously toward the steel pipe when rotating, and fix one end of the steel pipe. Then repeat the above operation to fix the other end of the steel pipe, and the steel pipe can be fixed.

[0044] Then, the first motor 25 is turned on. With the cooperation of the driving belt 26 and the first motor 25, the driving shaft 24 and the steel pipe can be driven to rotate, and the second screw rod 51 is driven to rotate through the driving member. The driving member is a built-in motor arranged in the workbench 1. The output shaft of the built-in motor is fixedly connected to one end of the second screw rod 51. During the rotation of the second screw rod 51, the connecting block 52 is driven to move in the mounting groove 5 through threaded transmission. At this time, the grinding pad 63 on the top of the connecting plate 62 is tightly fitted with the bottom of the steel pipe under the action of the elastic member. Through such a setting, since the steel pipe is rotating at this time, and the grinding pad 63 on the top of the connecting plate 62 is tightly fitted with the bottom of the steel pipe, the connecting block 52 will grind and clean the outer surface of the steel pipe during the movement, thereby cleaning the dirt or rust on the outside of the steel pipe to avoid the situation where dirt or rust affects the use effect of the anti-rust paint;

[0045] And during the movement of the connecting rod 6, its end will move to the side away from the fixed plate 7 under the limitation of the arc block 71, and stretch and compress the two groups of first springs 58 respectively. Through such an arrangement, since the arc blocks 71 are equidistantly distributed, the connecting rod 6 can drive the grinding pad 63 to do reciprocating motion under the cooperation of the first spring 58 and the arc block 71 during the movement, thereby improving the grinding and cleaning effect of the steel pipe, and avoiding the situation where dirt or rust affects the use effect of the anti-rust paint. In addition, when the steel pipe rotates at high speed and is polished by the grinding pad 63, the temperature of the surface of the steel pipe will rise rapidly. Therefore, when the steel pipe is subsequently painted, the temperature of its surface can make the anti-rust primer dry quickly, thereby improving the application effect of the anti-rust paint.

[0046] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. An anti-rust primer coating device, comprising a workbench (1), wherein two groups of mounting plates (2) are fixedly connected to the top of the workbench (1), the two groups of mounting plates (2) are each provided with a fixing component, and a coating component is provided between the two groups of mounting plates (2); It is characterized in that The workbench (1) is provided with a mounting groove (5) at the top, a second screw rod (51) is rotatably connected in the mounting groove (5), a connecting block (52) is threadedly connected to the outer wall of the second screw rod (51), a mounting block (53) is fixedly connected to the top of the connecting block (52), a connecting rod (6) is slidably connected to the top of the mounting block (53), a telescopic rod (61) is fixedly connected to the top of the end of the connecting rod (6) away from the connecting block (52), a connecting plate (62) is fixedly connected to the top of the telescopic rod (61), a grinding pad (63) is fixedly connected to the top of the connecting plate (62), an elastic member is provided between the connecting plate (62) and the connecting rod (6), a driving member is provided in the workbench (1), the driving member is used to drive the second screw rod (51), and a rotating assembly is provided at the top of the workbench (1).

2. The anti-rust primer coating equipment according to claim 1, characterized in that: The elastic member is a second spring (65) fixedly connected between the connecting plate (62) and the connecting rod (6); a movable groove (56) is provided at the top of the mounting block (53); a movable block (57) is slidably connected in the movable groove (56); a top of the movable block (57) is fixedly connected to the lower surface of the connecting rod (6); an outer wall of the movable block (57) is fixedly connected to a first spring (58); two groups of first springs (58) have one end away from the movable block (57) fixedly connected to the inner wall of the movable groove (56); a fixing plate (7) is fixedly connected to the top of the workbench (1) and located on one side of the mounting groove (5); a plurality of groups of arc blocks (71) are fixedly connected to the outer wall of a side of the fixing plate (7) close to the connecting rod (6); and the plurality of groups of arc blocks (71) are equidistantly distributed.

3. The anti-rust primer coating equipment according to claim 2, characterized in that: A negative pressure chamber is provided in the connecting plate (62), a plurality of negative pressure holes (64) are provided on the top of the grinding pad (63), the negative pressure holes (64) penetrate into the negative pressure chamber, a negative pressure pump (66) is fixedly connected to the top of the connecting rod (6), and the negative pressure pump (66) is connected to the negative pressure chamber via a negative pressure pipe.

4. The anti-rust primer coating equipment according to claim 3, characterized in that: The inner walls on both sides of the installation groove (5) are provided with sliding grooves (54), and the outer wall of the connection block (52) is fixedly connected with two groups of sliding blocks (55), the sliding blocks (55) correspond to the sliding grooves (54) one by one, the sliding blocks (55) are slidably installed in the sliding grooves (54), and the sizes of the sliding blocks (55) and the sliding grooves (54) are matched.

5. The anti-rust primer coating equipment according to claim 1, characterized in that: The fixing assembly comprises connecting holes (21) provided on the outer walls of the two groups of mounting plates (2), each of the connecting holes (21) being fixedly connected to a bearing (22), the inner wall of each of the bearings (22) being fixedly connected to a connecting shaft (23), the facing surfaces of the two groups of connecting shafts (23) being fixedly connected to mounting seats (3), the two groups of mounting seats (3) being rotatably connected to a bidirectional screw rod (31), the outer walls of both ends of the two groups of bidirectional screw rods (31) being threadedly connected to fixing blocks (32), and the tops of the two groups of mounting seats (3) being rotatably connected to a knob (33), the knob (33) being fixedly connected to the bidirectional screw rod (31).

6. The anti-rust primer coating equipment according to claim 5, characterized in that: The rotating assembly comprises a first motor (25) fixedly connected to the top of the mounting seat (3); a group of connecting shafts (23) close to the first motor (25) in the two groups of connecting shafts (23) is fixedly connected to the outer end of a driving shaft (24); and a driving belt (26) is wound between the output shaft of the first motor (25) and the driving shaft (24).

7. The anti-rust primer coating equipment according to claim 6, characterized in that: The coating assembly comprises a first screw (4) rotatably connected between two groups of mounting plates (2); a rectangular block (42) is threadedly connected to the outer wall of the first screw (4); a paint head (43) is fixedly connected to the bottom of the rectangular block (42); a liquid storage tank (41) is fixedly connected to the top of the rectangular block (42); the liquid storage tank (41) is connected to the paint head (43) via a liquid infusion tube; a limiting rod (44) is fixedly connected between the two groups of mounting plates (2) and on both sides of the first screw (4); the rectangular block (42) is sleeved on the outside of the limiting rod (44); a second motor (45) is fixedly connected to the outer wall of one group of the mounting plates (2); and an output shaft of the second motor (45) is fixedly connected to the first screw (4).

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