Paint spraying device
By employing symmetrical two-sided spraying and synchronous belt drive in the spraying device, the problems of uneven spraying and nozzle wobbling are solved, achieving a uniform and stable spraying effect and adapting to the spraying needs of products of different sizes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO RONGJIN NEW MATERIALS CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-12
AI Technical Summary
Existing painting technology is not ideal for mass production, especially for painting the bottom of the product. Furthermore, the product is prone to shaking when rotating, which can cause changes in the nozzle spacing and affect the uniformity of the paint application.
Design a painting device that uses two automatic spray guns to spray paint from both symmetrical sides of the product to be painted. The position of the spray guns is adjusted by synchronous belt drive and cylinder drive to ensure that the nozzles are parallel and stable and to expand the painting range.
It achieves uniform painting of the product surface, avoids uneven spraying and nozzle solidification, adapts to the painting needs of products of different sizes, and ensures the painting effect.
Smart Images
Figure CN224221627U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spray painting, and more specifically to a spray painting device. Background Technology
[0002] Spray painting is a surface treatment process widely used in industry and daily life. Its main purpose is to form a uniform coating by spraying paint to protect the product surface, enhance its appearance, or give it special functions.
[0003] In real life, many products need to be painted. When painting products in batches, most products are usually painted on the top two sides of the product to be painted. However, the painting effect on the bottom of the product is not good, and there is a difference in the painting effect in the vertical direction. Another method is to rotate the product for painting, but the product is prone to shaking when rotating, which will change the distance between the nozzle and the product, and also easily cause technical problems such as poor painting effect. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a painting device capable of spraying paint from both symmetrical sides of the product to be painted.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] A painting device includes a main frame and a limiting frame disposed on the main frame. A central rod capable of linear sliding is disposed on the limiting frame. A separation plate is disposed on the central rod. Both ends of the separation plate are provided with a rotating shaft capable of rotating around its own axis. A mounting tube is disposed on each rotating shaft. A fixing sleeve is disposed on each mounting tube. An automatic paint spray gun is disposed on each fixing sleeve. The nozzle axes of the two automatic paint spray guns are parallel and facing each other.
[0007] Preferably, each rotating shaft is fixedly connected to a synchronous pulley, and the two synchronous pulleys are driven by a synchronous belt.
[0008] Preferably, the separation plate is provided with a protective cover covering the outside of the synchronous belt, and a motor that drives one of the synchronous pulleys to rotate is fixed to the protective cover.
[0009] Preferably, a frame is fixedly connected to the main frame, and a cylinder for driving the central rod to slide is fixedly connected to the frame.
[0010] Preferably, a cover is fixed to the main frame, and the cover covers the outside of the two automatic paint spray guns.
[0011] Preferably, the sleeve is fixedly connected to two auxiliary rods inserted into the middle of the installation tube.
[0012] Preferably, the cover is provided with a material feeding hole in the horizontal direction corresponding to the nozzle gap between the two automatic paint spray guns.
[0013] Preferably, the limiting frame is a rectangular frame.
[0014] Preferably, the main frame is provided with a turntable fixed by bolts, and the limiting frame is fixedly connected to the turntable.
[0015] Preferably, each mounting tube has two parallel planes for mounting the fixing sleeve.
[0016] The advantages of this painting device are: it can spray paint from both symmetrical sides of the product to be painted; it ensures uniform painting; it can adjust the position of the spraying to perform painting processing over a larger area; and it can adjust the vertical spacing, horizontal spacing, and spraying direction of the spraying nozzles to meet more painting needs. Attached Figure Description
[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.
[0018] Figure 1 This is a schematic diagram of the painting equipment.
[0019] Figure 2 A schematic diagram showing the installation location of an automatic paint spray gun;
[0020] Figure 3 A schematic diagram showing the positions of two automatic paint spray guns;
[0021] Figure 4 This is a diagram showing the power transmission for the rotation of an automatic paint spray gun.
[0022] Figure 5 A structural diagram of a component designed to protect power transmission;
[0023] Figure 6 A schematic diagram illustrating the structure to prevent paint from escaping;
[0024] Figure 7 A schematic diagram of the structure for adjusting the position of the automatic paint spray gun;
[0025] Figure 8 This is a schematic diagram of the product being painted.
[0026] Diagram: Main frame 11, Limiting frame 12, Side frame 13, Turntable 14, Center rod 21, Separation plate 22, Cylinder 23, Rotating shaft 31, Mounting tube 32, Fixing sleeve 33, Automatic paint spray gun 34, Synchronous pulley 35, Synchronous belt 36, Motor 37, Protective cover 38, Cover 41, Auxiliary rod 42, Material conveying hole 43. Detailed Implementation
[0027] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0028] See details Figure 1 , Figure 2 and Figure 3 The following is a detailed embodiment of a method for thoroughly painting the outer wall of a product to be painted during linear transport: A painting device includes a main frame 11 and a limiting frame 12 disposed on the main frame 11. A central rod 21 capable of linear sliding is disposed on the limiting frame 12. A separation plate 22 is disposed on the central rod 21. Both ends of the separation plate 22 are provided with a rotating shaft 31 capable of rotating around its own axis. Each rotating shaft 31 is provided with a mounting tube 32. Each mounting tube 32 is provided with a fixing sleeve 33. Each fixing sleeve 33 is provided with an automatic paint spray gun 34. The nozzle axes of the two automatic paint spray guns 34 are parallel and facing each other.
[0029] The main frame 11 is used to install on the frame of the painting production line, and plays a role in fixing and installing other parts and structures. The limiting frame 12 plays a role in limiting the middle rod 21, ensuring that the middle rod 21 can only slide and cannot rotate, and ensuring the stability of the sliding of the middle rod 21. The separating plate 22 mainly plays a role in installing the two rotating shafts 31 and separating the two rotating shafts 31. When the middle rod 21 slides, it can drive the separating plate 22 to slide. The separating plate 22 drives the two rotating shafts 31 to slide, which can adjust the position of the two rotating shafts 31.
[0030] Both rotating shafts 31 can rotate around their own axes, thereby achieving two degrees of freedom adjustment: sliding around their own axes and rotating around their own axes. Each fixed sleeve 33 is provided with a threaded hole, and a bolt is connected in the threaded hole. By turning the bolt, the bolt is adjusted to tighten the mounting tube 32 and fix the fixed sleeve 33, thereby fixing the position of the automatic paint spray gun 34. The position of the automatic paint spray gun 34 can be adjusted by adjusting the position of the fixed sleeve 33.
[0031] When the two rotating shafts 31 slide, they can drive the two mounting tubes 32 to slide. The two mounting tubes 32 drive the two fixed sleeves 33 to move. The two fixed sleeves 33 drive the two automatic paint spray guns 34 to move. The two automatic paint spray guns 34 can perform paint spraying on the products to be painted transported between the nozzles of the two automatic paint spray guns 34 under electrical control. The automatic paint spray guns 34 are existing products, and how to perform automatic painting under electrical control is also an existing product and is not the main content protected by this application.
[0032] The nozzles of two automatic spray guns 34 are positioned opposite each other. The product to be painted is transported from the middle of the nozzles of the two automatic spray guns 34. The nozzles of the two automatic spray guns 34 can spray paint evenly from both sides of the product. The nozzles of the two automatic spray guns 34 are facing each other, which allows for painting from two opposite directions and prevents uneven painting caused by painting from one side. Currently, for products transported in batches, most are painted from the upper sides, resulting in poor painting effect below the product and differences in painting in the vertical direction. Some methods use product rotation for painting, but product rotation can cause shaking, which changes the distance between the nozzle and the product, also easily leading to poor painting effect.
[0033] Therefore, the arrangement of two automatic paint spray guns 34 on both sides of the product, with their nozzles staggered, prevents paint from solidifying on each other's nozzles, ensuring even and thorough painting of the product's outer surface. When the length of the product exceeds the spray range of the automatic paint spray guns 34, the sliding of the two mounting tubes 32 along their axial direction causes the two fixing sleeves 33 and the two automatic paint spray guns 34 to slide, thereby expanding the spray range of the two automatic paint spray guns 34 and ensuring a good painting effect. The spray range can also be expanded by increasing the number of automatic paint spray guns 34.
[0034] When it is necessary to fine-tune the distance between the nozzles of the two automatic paint spray guns 34 and the transported product to be painted, the two rotating shafts 31 can be driven to rotate, thereby causing the two mounting tubes 32 to rotate. The two mounting tubes 32, in turn, cause the two fixing sleeves 33 to rotate. The two fixing sleeves 33 then rotate the two automatic paint spray guns 34, thus adjusting the position of the nozzles and, consequently, the distance between the nozzles of the automatic paint spray guns 34 and the transported product to be painted, thereby ensuring the painting effect on the product.
[0035] refer to Figure 2 , Figure 3 and Figure 4 A detailed example of an embodiment where the two automatic paint spray guns with 34 nozzles always remain parallel:
[0036] Each rotating shaft 31 is fixedly connected to a synchronous pulley 35, and the two synchronous pulleys 35 are driven by a synchronous belt 36. The synchronous belt 36 ensures that the two synchronous pulleys 35 rotate synchronously, thereby ensuring that the two rotating shafts 31 rotate synchronously, the two mounting tubes 32 rotate synchronously, and the two fixed sleeves 33 drive the two automatic paint spray guns 34 to rotate synchronously, ensuring that the two automatic paint spray guns 34 are always spraying paint on opposite sides of the product to be painted. The synchronous pulleys 35 can be spur gears or helical gears, and the synchronous belt 36 is a toothed belt, ensuring the synchronous rotation of the two synchronous pulleys 35, preventing slippage that would affect the synchronous rotation effect of the two synchronous pulleys 35, and preventing misalignment of the nozzles of the two automatic paint spray guns 34 that would affect the painting effect.
[0037] refer to Figure 4 A detailed embodiment of driving two synchronous pulleys 35 to rotate synchronously is provided:
[0038] The separation plate 22 is equipped with a protective cover 38 that covers the synchronous belt 36. A motor 37, which drives one of the synchronous pulleys 35, is fixedly connected to the protective cover 38. The protective cover 38 isolates and protects the synchronous belt 36 and the two synchronous pulleys 35, ensuring stable transmission of the two synchronous pulleys 35. The motor 37 is an existing product, and different functions and models can be selected as needed. When the motor 37 is started, the output shaft of the motor 37 outputs power to drive the synchronous pulley 35, which is fixedly connected to the output shaft, to rotate. This synchronous pulley 35 drives the other synchronous pulley 35 to rotate synchronously through the synchronous belt 36, thereby ensuring the parallelism of the nozzles of the two automatic paint spray guns 34, and thus ensuring the painting effect.
[0039] refer to Figure 1 and Figure 5 Detailed embodiments for expanding the painting range of multiple automatic spray guns 34:
[0040] A frame 13 is fixedly connected to the main frame 11, and a cylinder 23 that drives the central rod 21 to slide is fixedly connected to the frame 13. The cylinder 23 is an existing product, and different sizes and models can be selected according to usage requirements. It can also be replaced with an electric push rod, a gear-driven rack, or other products that can achieve linear sliding. When the cylinder 23 is activated, the cylinder rod of the cylinder 23 drives the central rod 21 to slide, thereby adjusting the position of the separation plate 22. This, in turn, allows the separation plate 22 to drive the two rotating shafts 31 to slide, thus adjusting the position of the two rotating shafts 31. When the two rotating shafts 31 slide, they can drive the two mounting tubes 32 to slide. The two mounting tubes 32 drive the two fixing sleeves 33 to move, and the two fixing sleeves 33 drive the two automatic paint spray guns 34 to move, thereby expanding the painting range of the two automatic paint spray guns 34.
[0041] refer to Figure 1 and Figure 6Detailed examples of measures to prevent paint spillage and environmental impact during painting:
[0042] A cover 41 is fixedly connected to the main frame 11, covering the outside of the two automatic paint spray guns 34. The cover 41 covers the outside of the work station where the product to be painted is to be blocked from the outside during painting, preventing the atomized paint from escaping and affecting the environment.
[0043] refer to Figure 1 and Figure 6 Detailed description of an embodiment that ensures the stability of sliding between the two mounting tubes 32:
[0044] Two auxiliary rods 42 are fixedly connected to the sleeve 41 and inserted into the middle of the mounting tube 32. The two auxiliary rods 42 support the two mounting tubes 32. When the two mounting tubes 32 move, they can support them from the other side to prevent one end of the mounting tube 32 from sinking and to ensure stable painting when the two automatic paint spray guns 34 move.
[0045] refer to Figure 1 and Figure 6 Detailed examples of painting transported products:
[0046] The cover 41 is provided with a feeding hole 43 in the horizontal direction, corresponding to the nozzle gap of the two automatic paint spray guns 34. The feeding hole 43 is used for transporting the product to be painted, ensuring that the product can be transported between the automatic paint spray guns 34 for painting, and can be transported out after painting, ensuring the continuous transport and painting process of the product to be painted. At the same time, there is an angle between the nozzle of the automatic paint spray gun 34 and the two feeding holes 43, so that the paint will not be sprayed directly from the two feeding holes 43, reducing the amount of paint sprayed.
[0047] refer to Figure 2 and Figure 7 Detailed description of an embodiment that ensures the center rod 21 will not rotate:
[0048] The limiting frame 12 is a rectangular frame. The shape of the limiting frame 12 ensures that the central rod 21 can only slide and will not rotate, thus ensuring the relative stability of the positions of the two automatic paint spray guns 34.
[0049] refer to Figure 7 A detailed description of an embodiment for further optimizing the position adjustment of the two automatic paint spray guns 34:
[0050] The main frame 11 is equipped with a turntable 14 fixed by bolts, and a limiting frame 12 is fixedly connected to the turntable 14. When the product to be painted is large in the vertical direction, the position of the limiting frame 12 can be adjusted by adjusting the position of the turntable 14, which in turn can adjust the rotation of the separation plate 22. The relative height of the two ends of the separation plate 22 can be adjusted, thereby adjusting the height difference of the two automatic paint spray guns 34 in the vertical direction, enabling painting of products with large vertical dimensions.
[0051] refer to Figure 2 Detailed examples of ensuring the stability of the automatic paint spray gun 34:
[0052] Each mounting tube 32 is provided with two parallel planes for mounting the fixing sleeve 33. The two planes ensure that the fixing sleeve 33, which mates with the mounting tube 32, can only move and cannot rotate. The planes also facilitate the positioning of the bolts installed on the fixing sleeve 33 by pressing them against the planes, thus ensuring the stability of the installed automatic paint spray gun 34 and the stability during painting.
[0053] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.
Claims
1. A spray painting device, characterized in that: The system includes a main frame (11) and a limiting frame (12) set on the main frame (11). A central rod (21) capable of linear sliding is set on the limiting frame (12). A separation plate (22) is set on the central rod (21). Both ends of the separation plate (22) are provided with a rotating shaft (31) capable of rotating around its own axis. An installation tube (32) is set on each rotating shaft (31). A fixing sleeve (33) is set on each installation tube (32). An automatic paint spray gun (34) is set on each fixing sleeve (33). The nozzle axes of the two automatic paint spray guns (34) are parallel and facing each other.
2. The painting device according to claim 1, characterized in that: Each shaft (31) is fixedly connected to a synchronous pulley (35), and the two synchronous pulleys (35) are driven by a synchronous belt (36).
3. The painting device according to claim 2, characterized in that: The separation plate (22) is provided with a protective cover (38) covering the outside of the synchronous belt (36), and a motor (37) that drives one of the synchronous pulleys (35) to rotate is fixed on the protective cover (38).
4. The painting device according to claim 1, characterized in that: A frame (13) is fixedly connected to the main frame (11), and a cylinder (23) that drives the central rod (21) to slide is fixedly connected to the frame (13).
5. A painting device according to claim 1, characterized in that: A cover (41) is fixed to the main frame (11), and the cover (41) covers the outside of the two automatic paint spray guns (34).
6. A painting apparatus according to claim 5, characterized in that: Two auxiliary rods (42) are fixedly connected to the middle of the insertion installation tube (32) on the cover (41).
7. A painting device according to claim 5, characterized in that: The cover (41) is provided with a material feeding hole (43) in the horizontal direction corresponding to the nozzle gap of the two automatic paint spray guns (34).
8. A painting device according to claim 1, characterized in that: The limiting frame (12) is a rectangular frame.
9. A painting device according to claim 1, characterized in that: The main frame (11) is provided with a turntable (14) fixed by bolts, and the limiting frame (12) is fixedly connected to the turntable (14).
10. A painting apparatus according to claim 1, characterized in that: Each mounting tube (32) is provided with two parallel planes for mounting the fixing sleeve (33).