Three-proofing paint spraying equipment

Abstract

The utility model relates to three-proofing paint spraying equipment, which belongs to the technical field of spraying and comprises an operation blocking cover, a supporting plate is fixed at the bottom of an inner cavity of the operation blocking cover, a linear module is fixed on the upper surface of the supporting plate, a linkage plate is arranged on the outer surface of the linear module, and positioning mechanisms are arranged at the left end and the right end of the upper surface of the supporting plate. A bearing plate is fixed to the top of the left side of the operation blocking cover, and a spraying mechanism is arranged on the upper surface of the bearing plate. The positioning mechanism comprises a bottom plate, a left side plate, a rear side plate, a right side plate, a positioning plate, a connecting rod, two pressing plates, two reset springs and two movable plates. According to the conformal coating spraying equipment, a worker can conveniently adjust the position of the right side plate according to the size of a circuit board through the arranged positioning mechanism, then the horizontal position of the movable plate is adjusted, and the circuit board can be clamped, so that paint spraying treatment is facilitated, and the spraying efficiency and the spraying quality when conformal coating is sprayed to the circuit board are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of spraying technology, specifically to a conformal coating spraying equipment. Background Technology

[0002] Conformal coating is a specially formulated paint used to protect circuit boards and related equipment from environmental corrosion. Conformal coating has good resistance to high and low temperatures. After curing, it forms a transparent protective film with superior insulation, moisture-proof, leakage prevention, shockproof, dustproof, corrosion-proof, aging-proof, and corona-resistant properties.

[0003] A search revealed Chinese patent CN220239018U, which discloses a conformal coating spraying device, relating to the field of conformal coating technology. This utility model includes a support mechanism, a spraying mechanism at the top of the support mechanism, a brushing mechanism on the surface of the spraying mechanism to remove paint from its inner wall, an adjustment mechanism connected to the brushing mechanism, and a liquid delivery mechanism connected to the top of the support mechanism. The utility model uses a first motor to drive a brushing roller to rotate, which then adheres to the inner wall of the liquid storage tank to brush away the paint. An electric push rod moves the support frame up and down, allowing the brushing mechanism to approach and extend into the spraying mechanism. A second motor drives a rotating seat to rotate, which in turn rotates the brushing mechanism, flipping it so that the sealing plate or top cover faces downwards and adheres to the liquid storage tank. A sliding groove ensures stable rotation of the rotating seat.

[0004] When spraying conformal coating on the surface of a circuit board, the circuit board needs to be fixed on a fixture to facilitate the spraying process. However, this utility model does not have a mechanism for positioning the circuit board, which reduces the efficiency and quality of the circuit board spraying. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a conformal coating spraying device that has advantages such as the ability to position circuit boards. It solves the problem that when spraying conformal coating on the surface of circuit boards, the circuit boards need to be fixed on a fixture for easy spraying, but this utility model does not have a mechanism for positioning the circuit boards, which reduces the efficiency and quality of circuit board spraying.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a conformal coating spraying equipment, including a working shield, a support plate fixed at the bottom of the inner cavity of the working shield, a linear module fixed on the upper surface of the support plate, a linkage plate on the outer surface of the linear module, positioning mechanisms for positioning circuit boards at both the left and right ends of the upper surface of the support plate, a bearing plate fixed at the top of the left side of the working shield, and a spraying mechanism on the upper surface of the bearing plate;

[0007] The positioning mechanism includes a base plate, a left side plate, a rear side plate, a right side plate, a positioning plate, a connecting rod, two pressure plates, two return springs, and two movable plates. The base plate is fixed to the upper surface of the support plate, the left side plate is fixed to the left end of the upper surface of the base plate, the rear side plate is fixed to the rear end of the upper surface of the base plate, the right side plate is located at the right end of the upper surface of the base plate, the positioning plate is fixed to the bottom left side of the right side plate, the connecting rod is fixed between the opposite sides of the front and rear side walls of the inner cavity of the right side plate, the pressure plate is slidably connected to the connecting rod, the return spring is movably sleeved on the outer surface of the connecting rod, and the two ends of the return spring are respectively fixedly connected to the pressure plate and the opposite sides of the inner back wall and inner front wall of the right side plate, respectively. The movable plates are located on the left side of the right side plate.

[0008] By adopting this technical solution, the positioning mechanism allows workers to easily adjust the position of the right side plate according to the size of the circuit board, and then adjust the horizontal position of the movable plate to clamp the circuit board, thus facilitating the painting process and greatly improving the painting efficiency and quality when spraying conformal coating on the circuit board.

[0009] Furthermore, the top of the left side plate, the rear side plate, and the right side plate are all provided with fixing grooves on opposite sides, and the width of the left side plate and the right side plate and the length of the rear side plate are equal to the width and length of the bottom plate, respectively.

[0010] Furthermore, guide rails are provided at both the front and rear ends of the upper surface of the base plate, and grooves are provided at both the front and rear ends of the upper surface of the positioning plate. The grooves are fixedly connected to the guide rails by bolts.

[0011] By adopting this technical solution, it is easy to position the right side panel according to the size of the circuit board.

[0012] Furthermore, a through hole is provided on the left side of the right side plate, and hinge rods are provided at both ends of the two pressure plates and the movable plate on the opposite side. Both ends of the hinge rods are connected to the pressure plate and the movable plate through hinge seats.

[0013] By adopting this technical solution, the horizontal position of the movable plate can be adjusted using the hinge rod and hinge seat.

[0014] Furthermore, telescopic sleeves are fixed on both the upper and lower sides of the movable plate and the right side plate, a limit plate is fixed on the lower surface of the pressure plate, and a limit groove is opened on the inner bottom wall of the right side plate. The two limit plates move back and forth linearly in the inner cavity of the limit groove.

[0015] By adopting this technical solution, the setting of the limiting plate and limiting groove can further limit the movement of the pressure plate.

[0016] Furthermore, a guide hole is provided on the right side of the right side plate, a buckle is fixed on the right side of the pressure plate, the right side of the buckle passes through and extends to the right side of the guide hole, and an anti-slip plate is fixed on the left side of the movable plate, the anti-slip plate being a rubber plate.

[0017] By adopting this technical solution, the rubber plate increases the friction between the rubber plate and the circuit board, thereby improving the stability of fixing the circuit board.

[0018] Furthermore, the spraying mechanism includes a storage tank, a drive motor, a shaft, multiple stirring blades, a pump body, a conduit, a splitter pipe, and two nozzles. The storage tank is fixed to the upper surface of the support plate, the drive motor is fixed to the middle of the upper surface of the storage tank, the shaft is rotatably connected to the center between the opposite sides of the inner top wall and inner bottom wall of the storage tank via a bearing, the output shaft of the drive motor passes through and extends into the inner cavity of the storage tank and is fixed to the shaft, the multiple stirring blades are fixed to the outer surface of the shaft, the pump body is fixed to the left end of the upper surface of the working baffle, one end of the conduit is connected to the input end of the pump body, the splitter pipe is connected to the output end of the pump body, the two nozzles are fixed to the left and right ends of the front of the linkage plate, and the other two ends of the splitter pipe are connected to the two nozzles via pipes.

[0019] By adopting this technical solution, the spraying mechanism can use multiple stirring blades to stir the conformal coating after it enters the inner cavity of the storage tank through the feed cylinder, thereby fully diluting the conformal coating and ensuring the spraying effect of the subsequent circuit board.

[0020] Furthermore, the left end of the upper surface of the storage tank is connected to a feed cylinder, and multiple stirring blades are evenly distributed on the outer surface of the shaft. The other end of the conduit passes through and extends into the inner cavity of the storage tank.

[0021] By adopting this technical solution, the conduit allows the pump body's input end to draw the conformal coating from the storage tank's inner cavity into the output end's inner cavity, and finally into the one-to-two pipe.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] 1. The positioning mechanism of this conformal coating spraying equipment allows workers to easily adjust the position of the right side plate according to the size of the circuit board, and then adjust the horizontal position of the movable plate to clamp the circuit board, thereby facilitating the spraying process and greatly improving the spraying efficiency and quality when spraying conformal coating on the circuit board.

[0024] 2. The conformal coating spraying equipment is equipped with a spraying mechanism that can stir the conformal coating with multiple stirring blades after it enters the inner cavity of the storage tank through the feed cylinder, thereby fully diluting the conformal coating and ensuring the coating effect of the circuit board in the subsequent spraying. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the positioning mechanism of this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the base plate, left side plate, and rear side plate of this utility model;

[0028] Figure 4 This is a schematic diagram of the spraying mechanism of this utility model.

[0029] In the diagram: 1. Working shield; 2. Support plate; 3. Linear module; 4. Linkage plate; 5. Positioning mechanism; 51. Base plate; 52. Left side plate; 53. Rear side plate; 54. Right side plate; 55. Positioning plate; 56. Connecting rod; 57. Pressure plate; 58. Return spring; 59. Movable plate; 6. Bearing plate; 7. Spraying mechanism; 71. Storage box; 72. Drive motor; 73. Shaft; 74. Stirring blade; 75. Pump body; 76. Conduit; 77. One-to-two pipe; 78. Spray nozzle. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1 The conformal coating spraying equipment in this embodiment includes a working cover 1, a support plate 2 fixed at the bottom of the inner cavity of the working cover 1, a linear module 3 fixed on the upper surface of the support plate 2, a linkage plate 4 on the outer surface of the linear module 3, positioning mechanisms 5 for positioning the circuit board at both the left and right ends of the upper surface of the support plate 2, a bearing plate 6 fixed at the top of the left side of the working cover 1, and a spraying mechanism 7 on the upper surface of the bearing plate 6.

[0032] Please see Figures 2 to 3To position the circuit board, the positioning mechanism 5 in this embodiment includes a base plate 51, a left side plate 52, a rear side plate 53, a right side plate 54, a positioning plate 55, a connecting rod 56, two pressure plates 57, two return springs 58, and two movable plates 59. The base plate 51 is fixed to the upper surface of the support plate 2, the left side plate 52 is fixed to the left end of the upper surface of the base plate 51, the rear side plate 53 is fixed to the rear end of the upper surface of the base plate 51, the right side plate 54 is located at the right end of the upper surface of the base plate 51, the positioning plate 55 is fixed to the bottom left side of the right side plate 54, the connecting rod 56 is fixed between the opposite sides of the front and rear side walls of the inner cavity of the right side plate 54, and the pressure plates 57 are slidably connected to the connecting rod 56. The return spring 58 is movably sleeved on the outer surface of the connecting rod 56, and the two ends of the return spring 58 are fixedly connected to the pressure plate 57 and the inner back wall and inner front wall of the right side plate 54, respectively. The movement of the two buckles causes the two pressure plates 57 to move in opposite directions on the outer surface of the connecting rod 56. Thus, the movement of the pressure plate 57 can compress and shorten the return spring 58. The movement of the pressure plate 57 can synchronously drive the hinge seat on its surface to move, thereby changing the angle of the hinge rod. The movable plate 59 is located on the left side of the right side plate 54. The change in the angle of the hinge rod causes the hinge seat on the surface of the movable plate 59 to move closer to the right side plate 54 under the limitation of the two telescopic sleeve rods.

[0033] The movable plate 59 is moved to the side of the right plate 54, increasing the gap between the left plate 52 and the movable plate 59. Then, the circuit board is placed between the left plate 52 and the opposite side of the movable plate 59. After the return spring 58 is no longer under pressure, it rebounds and drives the pressure plate 57 to move, causing the two pressure plates 57 to move relative to each other. Then, the movable plate 59 can be moved closer to the left plate 52 through the hinge seat and hinge rod, which can position the circuit board.

[0034] In this embodiment, the top of the left side plate 52, the rear side plate 53, and the right side plate 54 on opposite sides are all provided with fixing grooves. The width of the left side plate 52 and the right side plate 54 and the length of the rear side plate 53 are equal to the width and length of the bottom plate 51, respectively. Guide rails are provided at both the front and rear ends of the upper surface of the bottom plate 51, and recesses are provided at both the front and rear ends of the upper surface of the positioning plate 55. The recesses are fixedly connected to the guide rails by bolts. When the right side plate 54 is moved, the movement of the right side plate 54 drives the positioning plate 55 to move to a suitable position. Then, the positioning plate 55 is fixed to the guide rails by the bolts on the upper surface of the positioning plate 55, so that the positions of the right side plate 54 and the positioning plate 55 can be fixed.

[0035] The right side plate 54 has a through hole on its left side. The two pressure plates 57 and the movable plate 59 are equipped with hinge rods at both ends on the opposite side. Both ends of the hinge rods are connected to the pressure plate 57 and the movable plate 59 through hinge seats. The upper and lower sides of the movable plate 59 and the right side plate 54 are fixed with telescopic sleeve rods. The telescopic sleeve rods include inner rods and outer rods that are nested together. The lower surface of the pressure plate 57 is fixed with a limit plate. The inner bottom wall of the right side plate 54 is provided with a limit groove. The two limit plates move back and forth linearly in the inner cavity of the limit groove.

[0036] In addition, a guide hole is provided on the right side of the right side plate 54, and a buckle is fixed on the right side of the pressure plate 57. The right side of the buckle passes through and extends to the right side of the guide hole. An anti-slip plate is fixed on the left side of the movable plate 59. The anti-slip plate is a rubber plate. The rubber plate increases the friction between the anti-slip plate and the circuit board, thereby improving the stability of fixing the circuit board.

[0037] It should be noted that the right side plate 54 is adjusted by the staff according to the size of the circuit board, and the horizontal position of the movable plate 59 is adjusted to clamp the circuit board, which facilitates the painting process and greatly improves the painting efficiency and quality when spraying conformal coating on the circuit board.

[0038] Please see Figure 4 To spray the surface of the circuit board, the spraying mechanism 7 in this embodiment includes a storage tank 71, a drive motor 72, a shaft 73, multiple stirring blades 74, a pump body 75, a conduit 76, a splitter pipe 77, and two nozzles 78. The storage tank 71 is fixed to the upper surface of the support plate 6, and the drive motor 72 is fixed to the middle of the upper surface of the storage tank 71. The shaft 73 is rotatably connected to the center between the opposite sides of the inner top wall and inner bottom wall of the storage tank 71 via bearings. The output shaft of the drive motor 72 passes through and extends into the inner cavity of the storage tank 71 and is fixed to the shaft 73. The multiple stirring blades 74 are fixed to the outer surface of the shaft 73. After the conformal coating enters the inner cavity of the storage tank 71 through the feed cylinder, the drive motor 72 can be started, and the output shaft of the drive motor 72 will... The rotation drives the shaft 73 to rotate, which in turn causes the multiple stirring blades 74 fixed on its surface to rotate. The rotation of the stirring blades 74 can fully stir the conformal coating inside the storage tank 71. The pump body 75 is fixed to the left end of the upper surface of the working cover 1. One end of the conduit 76 is connected to the input end of the pump body 75, and the one-to-two pipe 77 is connected to the output end of the pump body 75. The two nozzles 78 are fixed to the left and right ends of the front of the linkage plate 4. The other ends of the one-to-two pipe 77 are connected to the two nozzles 78 through pipes. When the pump body 75 is started, the input of the pump body 75 draws the conformal coating inside the storage tank 71 into the inner cavity of the one-to-two pipe 77 through the conduit 76, and finally flows into the inner cavity of the two nozzles 78 through the two pipes, so that the surface of the circuit board can be sprayed with paint.

[0039] In this embodiment, the left end of the upper surface of the storage tank 71 is connected to the feed cylinder, multiple stirring blades 74 are evenly distributed on the outer surface of the shaft 73, and the other end of the guide tube 76 passes through and extends into the inner cavity of the storage tank 71.

[0040] It should be noted that after the conformal coating enters the inner cavity of the storage tank 71 through the feed cylinder, multiple stirring blades 74 are used to stir the conformal coating, thereby making the conformal coating fully diluted and ensuring the coating effect of the circuit board during subsequent spraying.

[0041] The working principle of the above embodiments is as follows:

[0042] (1) When spraying the circuit board, the circuit board needs to be positioned first. The operator first moves the right side plate 54. The movement of the right side plate 54 drives the positioning plate 55 to move to the appropriate position. Then, the positioning plate 55 is fixed to the guide rail by the bolts on the upper surface of the positioning plate 55. The position of the right side plate 54 and the positioning plate 55 can be fixed. Then, the operator puts two fingers into the two buckles respectively and makes the two buckles move in opposite directions. The movement of the two buckles drives the two pressure plates 57 to move in opposite directions on the outer surface of the connecting rod 56. Thus, the movement of the pressure plate 57 can squeeze and shorten the return spring 58. The movement of the pressure plate 57 can synchronously drive the hinge seat on its surface to move, thereby making the hinge... The angle of the rod changes, and the angle of the hinge rod changes, causing the hinge seat on the surface of the movable plate 59 to move closer to the right plate 54 under the limitation of the two telescopic sleeve rods. This causes the movable plate 59 to move to the right plate 54, increasing the gap between the left plate 52 and the movable plate 59. Then, the circuit board is placed between the left plate 52 and the opposite side of the movable plate 59. The limit of the buckle is released. At this time, the return spring 58 rebounds after being unpressurized and drives the pressure plate 57 to move, causing the two pressure plates 57 to move relative to each other. Then, the movable plate 59 can be moved closer to the left plate 52 through the hinge seat and hinge rod, thus positioning the circuit board.

[0043] (2) After the conformal coating enters the inner cavity of the storage tank 71 through the feed cylinder, the drive motor 72 can be started. The output shaft of the drive motor 72 rotates and drives the shaft 73 to rotate. The rotation of the shaft 73 causes multiple stirring blades 74 fixed on its surface to rotate. The rotation of the stirring blades 74 can fully stir the conformal coating in the inner cavity of the storage tank 71. When spraying the circuit board, the pump body 75 is started. The input of the pump body 75 is drawn out of the inner cavity of the storage tank 71 to the inner cavity of the one-to-two pipe 77 through the conduit 76. Finally, it flows into the inner cavity of the two nozzles 78 through the two pipes, so that the surface of the circuit board can be sprayed.

Claims

1. A three-coat paint spraying apparatus comprising a working shield (1), characterized in that: The bottom of the inner cavity of the work cover (1) is fixed with a support plate (2), the upper surface of the support plate (2) is fixed with a linear module (3), the outer surface of the linear module (3) is provided with a linkage plate (4), the left and right ends of the upper surface of the support plate (2) are each provided with a positioning mechanism (5) for positioning a circuit board, and the top of the left side of the work cover (1) is fixed with a bearing plate (6). The positioning mechanism (5) comprises a bottom plate (51), a left side plate (52), a rear side plate (53), a right side plate (54), a positioning plate (55), a connecting rod (56), two pressing plates (57), two reset springs (58) and two movable plates (59), the bottom plate (51) is fixed on the upper surface of the support plate (2), the left side plate (52) is fixed on the left end of the upper surface of the bottom plate (51), the rear side plate (53) is fixed on the rear end of the upper surface of the bottom plate (51), the right side plate (54) is arranged on the right end of the upper surface of the bottom plate (51), the positioning plate (55) is fixed on the bottom of the left side of the right side plate (54), the connecting rod (56) is fixed between the opposite sides of the front and rear side walls in the inner cavity of the right side plate (54), the pressing plate (57) is slidably connected with the connecting rod (56), the reset spring (58) is movably sleeved on the outer surface of the connecting rod (56), and the opposite sides between the two ends of the reset spring (58) and the inner back wall and the inner normal wall of the right side plate (54) are fixedly connected with the pressing plate (57) and the right side plate (54), respectively.

2. The paint spraying apparatus according to claim 1, wherein: The top of the opposite side of the left side plate (52), the rear side plate (53) and the right side plate (54) is provided with a fixing groove, and the width of the left side plate (52) and the right side plate (54) and the length of the rear side plate (53) are equal to the width and the length of the bottom plate (51), respectively.

3. The paint spraying apparatus for a three-proofing paint according to claim 1, characterized by: The front and rear ends of the upper surface of the bottom plate (51) are provided with guide rails, and the front and rear ends of the upper surface of the positioning plate (55) are provided with recesses, and the recesses and the guide rails are fixedly connected through bolts.

4. The paint spraying apparatus for a three-proofing paint according to claim 1, wherein: The left side of the right side plate (54) is provided with a through hole, the front and rear ends of the opposite sides of the two pressing plates (57) and the movable plates (59) are provided with hinge rods, and the two ends of the hinge rods are connected with the pressing plates (57) and the movable plates (59) through hinge seats.

5. The paint spraying apparatus for a waterproofing agent according to claim 1, characterized by: The upper and lower sides between the movable plate (59) and the opposite side of the right side plate (54) are fixedly provided with telescopic sleeve rods, the lower surface of the pressing plate (57) is fixedly provided with a limiting plate, the inner bottom wall of the right side plate (54) is provided with a limiting groove, and the two limiting plates move linearly in the inner cavity of the limiting groove.

6. The paint spraying apparatus for a waterproofing agent according to claim 1, wherein: The right side of the right side plate (54) is provided with a guide hole, the right side of the pressing plate (57) is fixedly provided with a buckle, the right side of the buckle penetrates and extends to the right side of the guide hole, the left side of the movable plate (59) is fixedly provided with an anti-skid plate, and the anti-skid plate is a rubber plate.

7. The paint spraying apparatus for a waterproofing agent according to claim 1, wherein: Said spraying mechanism (7) includes storage box (71), drive motor (72), shaft (73), a plurality of stirring blades (74), pump body (75), conduit (76), one two pipe (77) and two spray heads (78), the storage box (71) is fixed on the upper surface of the bearing plate (6), the drive motor (72) is fixed on the upper surface of the storage box (71), the shaft (73) is rotatably connected in the centre between the inner top wall and the inner bottom wall opposite side of the storage box (71), the output shaft of the drive motor (72) penetrates and extends to the inner cavity of the storage box (71) and is fixed with the shaft (73), a plurality of the stirring blades (74) are fixed on the outer surface of the shaft (73), the pump body (75) is fixed on the left end of the upper surface of the work cover (1), one end of the conduit (76) is communicated with the input end of the pump body (75), the one two pipe (77) is communicated in the output end of the pump body (75), two spray heads (78) are fixed on the left and right ends of the front of the linkage plate (4), the other two ends of the one two pipe (77) are communicated with two spray heads (78) through the pipeline.

8. The paint spraying apparatus for a three-proofing paint according to claim 7, wherein: The left end of the upper surface of the storage box (71) is communicated with a feeding cylinder, a plurality of the stirring blades (74) are uniformly distributed on the outer surface of the shaft (73), the other end of the conduit (76) penetrates and extends to the inner cavity of the storage box (71).

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