A spray device for rotary valves

Abstract

The utility model discloses a spraying device for rotary valve, and the device comprises a paint spraying box, a glass door is arranged on the front of the paint spraying box, a fixed plate is arranged on one side of the inside of the paint spraying box, a servo motor is arranged on the fixed plate, a rotating shaft is arranged at one end of the servo motor, an installation plate is arranged at one end of the rotating shaft, a pneumatic cylinder is arranged on the installation plate, a telescopic rod is arranged at one end of the pneumatic cylinder, a movable block is arranged at one end of the telescopic rod, two connecting rods are hinged to one end of the movable block, a clamping hand is hinged to one end of the two connecting rods, the clamping hand is in the shape of V, one end of the clamping hand is hinged to the connecting rod, and the middle end of the clamping hand is hinged to the fixed plate. The utility model has the advantages that the pneumatic cylinder drives two V-shaped clamping hands to open and close synchronously through the connecting rod, and the unique hinge point and V-shaped structure enable the device to adaptively cover and tightly press the rotary valve body of different sizes and different profiles from both sides like a finger.

Description

Technical Field

[0001] This utility model belongs to the field of rotary valve processing technology, specifically relating to a spraying device for rotary valves. Background Technology

[0002] In the manufacturing process of rotary valves, uniform surface coating is a crucial step. Current technology often uses fixed fixtures to clamp the rotary valve body. However, because rotary valve bodies typically have non-standard, irregular contours, fixed-size fixtures cannot stably and reliably accommodate valve bodies of different specifications. This leads to slight displacement or shaking of the valve body during coating, resulting in quality problems such as uneven surface coating and substandard coating thickness.

[0003] Therefore, there is an urgent need to provide a spraying device for rotary valves to solve the problems mentioned in the background art. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a spraying device for rotary valves to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides a spraying device for a rotary valve, comprising: a spray booth, a glass door on the front of the spray booth, a fixed plate on one side inside the spray booth, a servo motor on the fixed plate, a rotating shaft at one end of the servo motor, a mounting plate at one end of the rotating shaft, a cylinder on the mounting plate, a telescopic rod at one end of the cylinder, a movable block at one end of the telescopic rod, two connecting rods hinged to one end of the movable block, and a gripper hinged to one end of each of the two connecting rods. The gripper is V-shaped, with one end of the gripper hinged to the connecting rod and the middle of the gripper hinged to the fixed plate.

[0006] As further explained, the mounting plate is provided with a guide rod, the movable block is provided with a guide groove, and the guide rod is slidably connected to the guide groove.

[0007] As further explained, a spray gun is provided at the top inside the paint spray box, a connecting plate is provided on the spray gun, a first dual-axis motor is provided on the connecting plate, and both shafts of the first dual-axis motor are connected to first rollers, and the first rollers are rotatably connected to a first guide rail.

[0008] As further explained, a second dual-axis motor is connected to both sides of the first guide rail. The two shafts of the second dual-axis motor are connected to a second roller. The second roller is rotatably connected to the second guide rail. The second guide rail is fixed to both sides of the upper part of the inside of the paint spray box.

[0009] As further explained, the glass door is rotatably connected to the paint spray box.

[0010] As further explained, the glass door is equipped with a handle.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. The core of this case lies in the adaptive clamping mechanism, which consists of a cylinder, a connecting rod, and "V"-shaped grippers. The cylinder drives two "V"-shaped grippers to open and close synchronously via the connecting rod. Their unique hinge points and "V"-shaped structure allow them to adaptively wrap around and abut against rotary valve bodies of different sizes and contours from both sides, much like "fingers." This multi-point, wrapping clamping method, compared to traditional fixed clamps, provides a larger contact area and more uniform force distribution, effectively preventing minute displacement or shaking of the valve body during high-speed rotary spraying, thus ensuring the uniformity of the spray and the quality of the coating from the source.

[0012] 2. The entire clamping mechanism and workpiece are rotated by a servo motor, allowing for precise control of rotation speed and angle. This ensures that the valve body surface is uniformly and continuously exposed to the spray gun's spraying area. Combined with stable clamping, this guarantees the uniformity of coating thickness and avoids spraying defects caused by unstable rotation speed or vibration.

[0013] 3. A two-dimensional moving system consisting of a first dual-axis motor and a first guide rail, and a second dual-axis motor and a second guide rail, drives the spray gun to move freely within the plane at the top of the spray booth. This design allows a single spray gun to flexibly cover the entire outer surface of the workpiece without the need for multiple fixed spray guns, reducing equipment costs and enabling precise, dead-angle-free spraying of complex-shaped valve bodies through program control, further improving spraying quality and automation.

[0014] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a preferred three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the internal front structure of the paint spray box of this utility model; Figure 3 This is a schematic diagram of the structure of the two guide rails of this utility model; Figure 4 This is a three-dimensional structural diagram of the hand clamp of this utility model.

[0018] In the picture: 1. Spray booth; 2. Glass door; 201. Handle; 3. Fixing plate; 4. Servo motor; 5. Rotating shaft; 6. Mounting plate; 601. Guide rod; 7. Cylinder; 8. Telescopic rod; 9. Movable block; 901. Guide groove; 10. Connecting rod; 11. Gripper; 12. Spray gun; 13. Connecting plate; 14. First dual-axis motor; 15. First roller; 16. First guide rail; 17. Second dual-axis motor; 18. Second roller; 19. Second guide rail. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] Reference Figure 1-4A spraying device for a rotary valve includes: a spray box 1, a glass door 2 on the front of the spray box 1, a fixed plate 3 on one side inside the spray box 1, a servo motor 4 on the fixed plate 3, a rotating shaft 5 at one end of the servo motor 4, a mounting plate 6 at one end of the rotating shaft 5, a cylinder 7 on the mounting plate 6, a telescopic rod 8 at one end of the cylinder 7, a movable block 9 at one end of the telescopic rod 8, two connecting rods 10 hinged to one end of the movable block 9, and a gripper 11 hinged to one end of each of the two connecting rods 10. The gripper 11 is V-shaped, with one end of the gripper 11 hinged to the connecting rod 10 and the middle end of the gripper 11 hinged to the fixed plate 3. Cylinder 7 pushes movable block 9 to move linearly via telescopic rod 8. Movable block 9 drives connecting rod 10, which is hinged at both ends, to swing synchronously. Since the middle end of clamp 11 is hinged to fixed plate 3 to form a lever fulcrum, the swing of connecting rod 10 drives "V" shaped clamp 11 to rotate around the middle end, realizing the opening and closing of clamp 11. When telescopic rod 8 extends, clamp 11 closes to clamp the valve body; when telescopic rod 8 retracts, clamp 11 opens to release the valve body. In addition, servo motor 4 drives mounting plate 6 and the entire clamping mechanism to rotate synchronously via rotating shaft 5, thereby driving the clamped rotary valve to rotate at a uniform speed, ensuring that the circumferential surface of the valve body can contact the coating. This device can adapt to rotary valves of different diameters and irregular contours without changing the fixed fixture, significantly improving versatility and ensuring that there are no "missed spray" areas on the circumference of the valve body, directly improving the coating thickness compliance rate.

[0021] The mounting plate 6 is equipped with a guide rod 601, and the movable block 9 is equipped with a guide groove 901. The guide rod 601 and the guide groove 901 are slidably connected. The guide rod 601 acts as a precise guide rail, and the movable block 9 with the guide groove 901 acts as a slider. When the cylinder 7 pushes the movable block 9, the guide groove 901 slides along the axial direction of the guide rod 601, constraining the potentially unstable motion of the movable block 9 into a single, stable linear motion.

[0022] A spray gun 12 is located at the top inside the spray booth 1. A connecting plate 13 is mounted on the spray gun 12, and a first dual-axis motor 14 is mounted on the connecting plate 13. Both shafts of the first dual-axis motor 14 are connected to first rollers 15, which are rotatably connected to a first guide rail 16. The spray gun 12 is connected to the first dual-axis motor 14 via the connecting plate 13. The two shafts of the first dual-axis motor 14 are respectively connected to the first rollers 15, which roll on the first guide rail 16. When the first dual-axis motor 14 is working, the two shafts drive the first rollers 15 to rotate, thereby moving the spray gun 12 along the first guide rail 16, achieving lateral position adjustment of the spray gun 12.

[0023] A second dual-axis motor 17 is connected to both sides of the first guide rail 16. Each shaft of the second dual-axis motor 17 is connected to a second roller 18, which is tactilely connected to a second guide rail 19. The second guide rail 19 is fixed to both sides of the upper part of the inside of the spray booth 1. The second dual-axis motor 17 drives the second rollers 18 connected to the two shafts to roll on the second guide rail 19. Because the first guide rail 16 is fixedly connected to the second dual-axis motor 17, the rolling of the rollers causes the first guide rail 16, along with the spray gun and other components on it, to move longitudinally along the second guide rail 19, ultimately achieving two-dimensional position adjustment of the spray gun 12 in both the horizontal and vertical directions. Through multi-directional movement, the spray gun 12 can spray the valve body from different angles, reducing spray dead zones and improving the uniformity and quality of the coating.

[0024] Glass door 2 is rotatably connected to paint spray box 1. The concept of "rotatable connection" encompasses structures such as hinges and other mechanisms that allow for rotating opening and closing. The door rotates around a fixed axis to achieve opening and closing.

[0025] The glass door 2 is equipped with a handle 201. Through the mechanical design that increases the point of force application, the operator can easily drive the glass door 2 to rotate by holding the handle 201, making it easy to open or close the glass door 2.

[0026] All components selected in this application (parts whose specific structures are not described) are general standard parts or parts known to those skilled in the art, and their structures and principles can be obtained by those skilled in the art through technical manuals. This knowledge can be obtained through conventional experimental methods.

[0027] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0028] In addition, in the various embodiments of this utility model, each functional unit can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0029] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A spraying device for a rotary valve, characterized in that, include: A paint spraying box (1) is provided with a glass door (2) on the front. A fixed plate (3) is provided on one side inside the paint spraying box (1). A servo motor (4) is provided on the fixed plate (3). A rotating shaft (5) is provided at one end of the servo motor (4). A mounting plate (6) is provided at one end of the rotating shaft (5). A cylinder (7) is provided on the mounting plate (6). A telescopic rod (8) is provided at one end of the cylinder (7). A movable block (9) is provided at one end of the telescopic rod (8). Two connecting rods (10) are hinged to one end of the movable block (9). A clamp (11) is hinged to one end of each of the two connecting rods (10). The clamp (11) is "V" shaped. One end of the clamp (11) is hinged to the connecting rod (10). The middle end of the clamp (11) is hinged to the fixed plate (3).

2. The spraying device for a rotary valve as described in claim 1, characterized in that, The mounting plate (6) is provided with a guide rod (601), and the movable block (9) is provided with a guide groove (901). The guide rod (601) and the guide groove (901) are slidably connected.

3. The spraying device for a rotary valve as described in claim 1, characterized in that, The spray gun (12) is located inside the spray box (1) and is located above the spray gun (12). A connecting plate (13) is located on the spray gun (12). A first dual-axis motor (14) is located on the connecting plate (13). Both axes of the first dual-axis motor (14) are connected to first rollers (15). The first rollers (15) are tactilely connected to a first guide rail (16).

4. The spraying device for a rotary valve as described in claim 3, characterized in that, The first guide rail (16) is connected to a second dual-axis motor (17) on both sides. The two shafts of the second dual-axis motor (17) are connected to a second roller (18). The second roller (18) is tactilely connected to a second guide rail (19). The second guide rail (19) is fixed on both sides of the upper part of the inside of the paint spray box (1).

5. The spraying device for a rotary valve as described in claim 1, characterized in that, The glass door (2) is rotatably connected to the paint spray box (1).

6. The spraying apparatus for a rotary valve as described in claim 5, characterized in that, The glass door (2) is equipped with a handle (201).

Images