A heat sink spraying production device

Abstract

The application discloses a radiator spraying production device and relates to the technical field of transformer production. The device comprises a spraying chamber, a conveying track penetrating through the spraying chamber, a hoisting assembly, a spraying assembly and a driving assembly. The hoisting assembly is fixed with the flange of the radiator by using a clamping groove type clamping structure. The driving assembly drives the spraying gun to periodically reciprocate by a crank rocker mechanism and a connecting rod transmission, thereby completing the automatic spraying on the surface of the radiator. The device can effectively ensure the posture stability of the workpiece conveying and spraying process, greatly reduce the labor intensity, improve the spraying effect and be suitable for the large-batch assembly line spraying operation of the radiator of the transformer.

Description

Technical Field

[0001] This invention relates to the field of transformer manufacturing technology, and more particularly to a radiator spraying production apparatus. Background Technology

[0002] The radiator is a crucial component of an oil-immersed transformer. It consists of two current collectors and multiple fins connecting them. The fins have cavities that allow communication between the two current collectors. During operation, the high-temperature insulating oil inside the transformer enters through one current collector, cools down through extensive heat exchange on the fins, and then flows back to the transformer through the other current collector. This process dissipates heat and cools the transformer, ensuring stable operation. In existing technologies, the radiator surface is typically coated for protection, corrosion resistance, and aesthetic purposes.

[0003] Currently, the mainstream spraying method in the industry is manual spraying on an assembly line: the flange of the manifold is suspended on the hook of the conveyor rail, and the conveyor rail drives the radiator to move slowly and uniformly. Several workers stand on both sides of the radiator, holding spray guns and spraying the surface of the heat sink fins back and forth. This work mode has several inherent defects: First, the manual repetitive spraying for a long time is extremely labor-intensive and can easily cause physical fatigue, which may affect the spraying effect; second, the radiator relies on the flange suspension, and the conveying process is easily affected by airflow disturbances, causing swaying and twisting, and the unstable posture of the radiator will seriously affect the spraying effect.

[0004] Therefore, there is an urgent need to develop a radiator spraying production device to address the aforementioned shortcomings. Summary of the Invention

[0005] The purpose of this invention is to provide a radiator spraying production device to solve the problems of high labor intensity, unstable spraying quality, and easy shaking of radiators during transportation that affects the spraying effect in the existing technology.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This invention discloses a radiator spraying production apparatus, comprising a spraying chamber and a conveying track passing through the spraying chamber, and further comprising: The hoisting assembly is set up one by one with the flange of the radiator, with the top end fixedly connected to the conveying rail and the bottom end detachably fixedly connected to the flange; A spraying assembly is rotatably connected to the spraying chamber, and the spraying assembly is present on both sides of the radiator conveying direction; A drive assembly is disposed outside the spray booth and is capable of driving the spray assembly to reciprocate.

[0007] Optionally, the hoisting assembly includes a connecting rod and a locking mechanism, wherein the top end of the connecting rod is fixedly connected to the conveying track, and the bottom end of the connecting rod is detachably connected to the locking mechanism.

[0008] Optionally, the snap-fit ​​mechanism includes a base, which is detachably connected to the connecting rod; one side of the base has an opening for the inlet and outlet of the heat sink's manifold, and the base has a slot for receiving the flange, which communicates with the opening.

[0009] Optionally, a shield is also included for shielding the flange; one end of the shield is hinged to a lug on the base.

[0010] Optionally, an automatic opening mechanism is also included, which includes a compression spring and a push rod. A receiving groove is provided on the base. One end of the push rod is hinged to the receiving groove, and the other end of the push rod is tangent to the inner wall of the shield. The compression spring is fixed between the push rod and the bottom wall of the receiving groove.

[0011] Optionally, the top surface of the shield is fixed with a protrusion.

[0012] Optionally, the spraying assembly includes a mounting plate, a rotating shaft, and spray guns. Multiple spray guns are fixed on the mounting plate. One end of the rotating shaft is fixedly connected to the mounting plate, and the rotating shaft is rotatably connected to the spraying chamber. The end of the rotating shaft away from the mounting plate passes through the spraying chamber and is connected to the drive assembly for transmission.

[0013] Optionally, the drive assembly includes a crank-rocker mechanism and a drive motor. One end of the crank-rocker mechanism is fixedly connected to the rotating shaft, and the other end of the crank-rocker mechanism is fixedly connected to the output shaft of the drive motor. The drive motor is fixedly connected to a motor mount on the spray booth.

[0014] Optionally, the drive assembly is respectively provided on both sides of the spraying chamber; the crank-rocker mechanism includes a middle rod, a rocking rod and a drive rod, the middle rod is hinged between the rocking rod and the drive rod, the end of the drive rod away from the middle rod is fixedly connected to the output shaft of the drive motor, the end of the rocking rod away from the middle rod is fixedly connected to any of the rotating shafts located on the same side of the spraying chamber, and a driven rod is fixed on each of the other rotating shafts, the driven rod and the top of the rocking rod are hinged to the same transmission rod.

[0015] Optionally, the drive components are configured in a one-to-one correspondence with the rotating shafts.

[0016] Compared with the prior art, the present invention has at least the following beneficial technical effects: This invention uses a hoisting assembly to fix the radiator, achieving stable workpiece transport and solving the problems of easy swaying and twisting during suspension. This ensures the stability of the workpiece posture during the spraying process and improves the spraying effect. A drive assembly is used to drive the spray gun to reciprocate, realizing automated spraying of the radiator surface, replacing manual operation, significantly reducing the intensity of manual labor, and avoiding spraying quality fluctuations caused by human fatigue. At the same time, a flange shield is provided to prevent paint from entering the manifold and ensure the cleanliness of the product's interior. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a top view of the internal structure of the spray booth; Figure 3 A three-dimensional structural diagram of the hoisting assembly, painting assembly, and drive assembly; Figure 4 A three-dimensional structural diagram of the hoisting components and radiator; Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle; Figure 6 A three-dimensional structural diagram of the shield when it is open; Figure 7 for Figure 6 Another structural diagram from another angle.

[0019] Explanation of reference numerals in the attached drawings: 100, spray booth; 101, motor base; 200, conveyor rail; 300, radiator; 301, flange; 302, manifold; 400, connecting rod; 500, base; 501, opening; 502, slot; 503, lug; 504, receiving groove; 600, shield; 601, protrusion; 700, compression spring; 800, top rod; 900, mounting plate; 1000, rotating shaft; 1100, spray gun; 1200, drive motor; 1300, intermediate rod; 1400, rocker arm; 1500, drive rod; 1600, driven rod; 1700, transmission rod. Detailed Implementation

[0020] The core of this invention is to provide a radiator spraying production device to solve the problems of high labor intensity, unstable spraying quality, and easy shaking of the radiator during transportation that affects the spraying effect in the existing technology.

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] In this invention, unless otherwise explicitly specified and limited, the terms "set", "install", "connect", "link", "fix", "sleeve", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] The circuits, electronic components, modules, and controllers involved in this application are all prior art, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this application does not involve any improvement to the above-mentioned components.

[0024] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0025] A radiator spraying production apparatus: In a specific embodiment of the present invention, such as Figures 1-7 As shown, the system includes a spray booth 100 and a conveyor track 200 passing through the spray booth 100, and also includes: The hoisting assembly is set one-to-one with the flange 301 of the radiator 300. The top end is fixedly connected to the conveyor rail 200, and the bottom end is detachably fixedly connected to the flange 301. The radiator 300 is fixed by the hoisting assembly, which effectively avoids airflow disturbance, keeps it stable during transportation, and improves the spraying effect.

[0026] A spraying assembly is rotatably connected to the spraying chamber 100, and spraying assemblies are provided on both sides of the radiator 300 in the conveying direction. The drive component is located outside the spraying chamber 100 and can drive the spraying component to rotate reciprocally. By driving the spraying component to rotate periodically within a certain angle range, the radiator 300 is sprayed. The spraying effect is stable and consistent, saving labor and reducing labor intensity.

[0027] In a specific embodiment of the present invention, such as Figure 1 , 3 As shown in Figure 5, the hoisting assembly includes a connecting rod 400 and a locking mechanism. The top end of the connecting rod 400 is fixedly connected to the conveying rail 200, and the bottom end of the connecting rod 400 is detachably connected to the locking mechanism. The locking mechanism and the connecting rod 400 are detachably connected, which facilitates the replacement of the appropriate locking mechanism according to different specifications of radiators, improves the versatility of the equipment, and also facilitates the daily maintenance and replacement of the locking mechanism.

[0028] In a specific embodiment of the present invention, such as Figures 5-7 As shown, the snap-fit ​​mechanism includes a base 500, which is detachably connected to the connecting rod 400 by screws. One side of the base 500 has an opening 501 for the inlet and outlet of the manifold 302 of the radiator 300. The base 500 also has a slot 502 for receiving the flange 301, which communicates with the opening 501. When placing the radiator 300, the manifold 302 enters through the opening 501, and the flange 301 moves with the manifold to above the slot 502. The radiator 300 is then placed downwards, and the flange 301 falls into the slot 502. The slot 502 limits the flange 301, ensuring stable placement of the radiator. Compared to traditional hook suspension, this structure has a larger contact area and more reliable limiting, effectively preventing the radiator 300 from swaying or rotating due to airflow disturbances during transport.

[0029] In a specific embodiment of the present invention, such as Figures 5-7 As shown, it also includes a shield 600 for shielding the flange 301; one end of the shield 600 is hinged to the lug 503 on the base 500. After the flange 301 falls into the slot 502, the shield 600 is rotated to cover the flange 301, which can effectively prevent paint from splashing into the manifold 302 during the spraying process. Additionally, since the base 500 and the shield 600 partially shield the flange 301 and the manifold 302, the shielded areas are sprayed again after the current paint has solidified (refer to the existing techniques, methods, or equipment for spraying the shielded areas of the hook; details will not be elaborated here).

[0030] In a specific embodiment of the present invention, such as Figure 5 and 6As shown, it also includes an automatic opening mechanism, which includes a compression spring 700 and a push rod 800. A receiving groove 504 is provided on the base 500. One end of the push rod 800 is hinged to the receiving groove 504, and the other end of the push rod 800 is tangent to the inner wall of the shield 600. The compression spring 700 is fixed between the push rod 800 and the bottom wall of the receiving groove 504.

[0031] When the radiator 300 is installed, the shield 600 is in the open state, the manifold 302 enters the opening 501, the flange 301 pushes the inner wall of the shield 600, and the free end of the shield 600 swings upward. At the same time, the flange 301 presses down the push rod 800, and the push rod 800 no longer contacts the shield 600. Then the radiator 300 is lowered, and the push rod 800 is further pressed down by the flange 301 and completely enters the receiving groove 504. The flange 301 is supported on the slot 502. The shield 600 loses the pushing action of the flange 301, and the free end swings downward, changing from the open state to the closed state, thereby covering the flange 301. During unloading, the radiator 300 moves upward, the flange 301 pushes against the inner wall of the shield 600, and the free end of the shield 600 swings upward. When the bottom surface of the flange 301 is higher than the slot 502, the radiator 300 can be removed. After the flange 301 is removed, under the elastic force of the compression spring 700, the free end of the push rod 800 swings upward and supports the shield 600, thereby keeping the shield 600 in the open state, which is convenient for the next placement of the radiator 300.

[0032] In a specific embodiment of the present invention, such as Figures 5-7 As shown, a protrusion 601 is fixed on the top surface of the shield 600. The protrusion 601 can be a handle for easy manual lifting, making it easy to manually open and close the shield 600; the protrusion 601 can also be a counterweight located at the free end, increasing the weight at the free end. When the radiator 300 is placed, after the flange 301 is supported on the slot 502, it is more conducive to the shield 600 closing automatically by gravity.

[0033] In a specific embodiment of the present invention, such as Figure 2 and 3As shown, the spraying assembly includes a mounting plate 900, a rotating shaft 1000, and spray guns 1100. Multiple spray guns 1100 are fixed on the mounting plate 900. The discharge end of each spray gun 1100 faces the radiator 300, and the inlet end of each spray gun 1100 is connected to an external paint supply device via a flexible pipeline. The fixing connection method and structure between the spray gun 1100 and other components (such as the mounting plate 900) are set according to the specific structure of the spray gun 1100 and are relatively conventional technologies, which will not be elaborated further here. One end of the rotating shaft 1000 is fixedly connected to the mounting plate 900 (e.g., bolted or threaded connection), and the rotating shaft 1000 is rotatably connected to the spray chamber 100 (e.g., rotatably connected via a bearing). The end of the rotating shaft 1000 away from the mounting plate 900 passes through the spray chamber 100 and is connected to the drive assembly for transmission. The drive assembly drives the rotating shaft 1000 to rotate periodically around its own central axis within a certain angle range, which can be from 10° to 30°. The rotating shaft 1000 drives the spray gun 1100 to revolve around the central axis of the rotating shaft 1000 through the mounting plate 900. The spray gun 1100 performs spraying operations on the radiator 300.

[0034] In a specific embodiment of the present invention, such as Figures 1-3 As shown, the drive assembly includes a crank-rocker mechanism and a drive motor 1200. One end of the crank-rocker mechanism is fixedly connected to the rotating shaft 1000, and the other end is fixedly connected to the output shaft of the drive motor 1200. The drive motor 1200 is fixedly connected to the motor mount 101 on the spray chamber 100. The drive motor 1200 drives the crank-rocker mechanism to move, thereby causing the crank-rocker mechanism to drive the rotating shaft 1000 to rotate.

[0035] In a specific embodiment of the present invention, such as Figures 1-3 As shown, drive assemblies are respectively provided on both sides of the spraying chamber 100; the crank rocker mechanism includes an intermediate rod 1300, a rocking rod 1400 and a drive rod 1500. The intermediate rod 1300 is hinged between the rocking rod 1400 and the drive rod 1500. The end of the drive rod 1500 away from the intermediate rod 1300 is fixedly connected to the output shaft of the drive motor 1200. The end of the rocking rod 1400 away from the intermediate rod 1300 is fixedly connected to any rotating shaft 1000 located on the same side of the spraying chamber 100. A driven rod 1600 is fixedly fixed on the other rotating shafts 1000 respectively. The driven rod 1600 and the top of the rocking rod 1400 are hinged to the same transmission rod 1700. The drive motor 1200 drives the drive rod 1500 to rotate, which in turn drives the rocker arm 1400 to swing back and forth via the intermediate rod 1300. When the rocker arm 1400 moves, the transmission rod 1700 also moves, which drives the driven rod 1600 to move. The driven rod 1600 then drives the rotating shaft 1000 connected to it to rotate.

[0036] Obviously, in a specific embodiment of the present invention, the drive components and the rotating shaft 1000 can also be set in a one-to-one correspondence. Each spraying component is driven by an independent drive component, and the swing angle and speed of the spraying component can be adjusted individually (such as adjusting the output shaft speed of the drive motor, replacing different crank rocker mechanisms) to adapt to different spraying needs.

[0037] Overall Working Principle: This device adopts a snap-fit ​​rigid hoisting and multi-gun synchronous reciprocating oscillating spraying integrated working principle. Unlike traditional suspended manual spraying, this device achieves stable placement of the radiator 300 through the surface contact between the slot 502 and the flange 301, solving the problem of workpiece swaying and twisting due to airflow disturbance during transport. A crank-rocker mechanism converts the continuous rotational motion of the drive motor 1200's output shaft into the periodic reciprocating motion of the spray gun 1100, achieving automated spraying of the radiator surface. Equipped with a shielding cover 600 and an automatic opening mechanism, it automatically shields and opens the flange 301 during loading and unloading, preventing paint contamination of the flange sealing surface and the inside of the manifold 302, improving spraying quality and production efficiency, and reducing manual labor intensity and occupational health risks.

[0038] Work process: During the equipment preparation phase, replace the appropriate snap-fit ​​mechanism according to the specifications of the flange 301 and manifold 302 of the radiator 300 to be sprayed; start the external paint supply equipment to ensure that the paint pipeline is unobstructed. At this time, the shield 600 is in the open state under the support of the top rod 800, waiting for the material to be loaded.

[0039] The workpiece is loaded and fixed. The manifold of the radiator 300 is aligned with the opening 501 of the base 500 and pushed horizontally in, causing the flange 301 to move directly above the slot 502. The radiator 300 is then placed downwards, and the flange 301 moves downwards with the manifold 302. During this process, the flange 301 pushes against the inner wall of the shield 600, causing the free end of the shield 600 to swing upwards. Simultaneously, the bottom surface of the flange 301 presses down on the push rod 800, which rotates around the hinge point and compresses the compression spring 700, gradually disengaging from contact with the shield 600. When the flange 301 is supported on the slot 502, the shield 600 loses the pushing force of the flange 301 and, under the action of gravity (or counterweight, or manual operation), its free end swings downwards, closing and covering the flange 301.

[0040] The conveyor system and automated spraying process begin when the conveyor track 200 is activated, moving the hoisting assembly and radiator 300 into the spraying chamber 100. Once the radiator 300 enters the spraying area, the drive motor 1200 and the externally installed paint supply equipment are activated, driving the drive rod 1500 to move. The drive rod 1500 drives the rocker arm 1400 to swing back and forth via the intermediate rod 1300. The rocker arm 1400 drives the driven rod 1600 to swing via the transmission rod 1700, thereby driving each rotating shaft 1000 and the mounting plate 900 to rotate periodically back and forth within a range of 10°-30° around their own central axis. Multiple spray guns 1100 on the mounting plate 900 revolve with the mounting plate 900, spraying the radiator 300.

[0041] During workpiece unloading, the radiator 300 is lifted upwards, and the flange 301 moves upwards along with the manifold 302. The inner wall of the shield 600 is then pushed again to open the shield 600. Once the bottom surface of the flange 301 is higher than the top surface of the slot 502, the radiator 300 is removed, completing the unloading process. After the flange 301 is removed, the compression spring 700 returns to its original position, pushing the push rod 800 to swing upwards. The push rod 800 supports the shield 600, keeping the shield open until the next loading cycle.

[0042] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably, and the embodiments can be combined with each other. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section.

[0043] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A radiator spraying production apparatus, comprising a spraying chamber (100) and a conveying track (200) passing through the spraying chamber (100), characterized in that, Also includes: The hoisting assembly is set one-to-one with the flange (301) of the radiator (300), with the top end fixedly connected to the conveying rail (200) and the bottom end detachably fixedly connected to the flange (301); A spraying assembly is rotatably connected to the spraying chamber (100), and the spraying assembly is located on both sides of the radiator (300) in the conveying direction; A drive assembly is disposed outside the spray chamber (100) and is capable of driving the spray assembly to reciprocate.

2. The radiator spraying production apparatus according to claim 1, characterized in that: The hoisting assembly includes a connecting rod (400) and a locking mechanism. The top end of the connecting rod (400) is fixedly connected to the conveying track (200), and the bottom end of the connecting rod (400) is detachably connected to the locking mechanism.

3. The radiator spraying production apparatus according to claim 2, characterized in that: The snap-fit ​​mechanism includes a base (500), which is detachably connected to the connecting rod (400); one side of the base (500) is provided with an opening (501) for the inlet and outlet of the manifold (302) of the radiator (300), and the base (500) is provided with a slot (502) for receiving the flange (301), which is connected to the opening (501).

4. The radiator spraying production apparatus according to claim 3, characterized in that: It also includes a shield (600) for shielding the flange (301); one end of the shield (600) is hinged to a lug (503) on the base (500).

5. The radiator spraying production apparatus according to claim 4, characterized in that: It also includes an automatic opening mechanism, which includes a compression spring (700) and a push rod (800). The base (500) has a receiving groove (504). One end of the push rod (800) is hinged to the receiving groove (504), and the other end of the push rod (800) is tangent to the inner wall of the shield (600). The compression spring (700) is fixed between the push rod (800) and the bottom wall of the receiving groove (504).

6. The radiator spraying production apparatus according to claim 4 or 5, characterized in that: The top surface of the shield (600) is fixed with a protrusion (601).

7. The radiator spraying production apparatus according to claim 1, characterized in that: The spraying assembly includes a mounting plate (900), a rotating shaft (1000), and spray guns (1100). Multiple spray guns (1100) are fixed on the mounting plate (900). One end of the rotating shaft (1000) is fixedly connected to the mounting plate (900), and the rotating shaft (1000) is rotatably connected to the spraying chamber (100). The end of the rotating shaft (1000) away from the mounting plate (900) passes through the spraying chamber (100) and is connected to the drive assembly for transmission.

8. The radiator spraying production apparatus according to claim 7, characterized in that: The drive assembly includes a crank-rocker mechanism and a drive motor (1200). One end of the crank-rocker mechanism is fixedly connected to the rotating shaft (1000), and the other end of the crank-rocker mechanism is fixedly connected to the output shaft of the drive motor (1200). The drive motor (1200) is fixedly connected to the motor mount (101) on the spray chamber (100).

9. The radiator spraying production apparatus according to claim 8, characterized in that: The drive assembly is provided on both sides of the spraying chamber (100); the crank rocker mechanism includes a middle rod (1300), a rocking rod (1400) and a drive rod (1500). The middle rod (1300) is hinged between the rocking rod (1400) and the drive rod (1500). The end of the drive rod (1500) away from the middle rod (1300) is fixedly connected to the output shaft of the drive motor (1200). The end of the rocking rod (1400) away from the middle rod (1300) is fixedly connected to any of the rotating shafts (1000) located on the same side of the spraying chamber (1000). A driven rod (1600) is fixedly fixed on each of the other rotating shafts (1000). The driven rod (1600) and the rocking rod (1400) are hinged to the same transmission rod (1700).

10. The radiator spraying production apparatus according to claim 8, characterized in that: The drive components are configured in a one-to-one correspondence with the rotating shaft (1000).

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