A metal casting surface treatment device
Patent Information
- Application Number
- CN202522171192.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-14
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-10-14
AI Technical Summary
翻转组件中的翻转箱体二通过转轴与翻转箱体一活动连接，且翻转箱体二底部通过多组液压缸与固定长板联动，左右两侧液压缸可不同步启动，带动翻转箱体二沿转轴重复,左高右低-右高左低的倾斜翻转动作。当螺栓、螺钉等小型铸件置于翻转箱体二内时，翻转动作可驱动铸件在箱体内自动翻滚、错动，使铸件表面的每个区域均能充分接触清洁盖喷洒的除锈液，避免因铸件堆叠或贴合导致的除锈盲区，无需人工手动翻面或调整位置，大幅减少了人工操作步骤，提升了除锈全面性与处理效率。
Smart Images
Figure CN224749622U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of surface treatment technology for metal castings, specifically to a surface treatment device for metal castings. Background Technology
[0002] During processing, storage, and use, metal castings are prone to corrosion due to environmental humidity, oxidation, and other factors. Rust not only damages the surface smoothness of the castings but also reduces their mechanical properties, assembly accuracy, and service life. Therefore, surface rust removal is a crucial process in the production and maintenance of metal castings. Small metal castings such as bolts and screws, due to their small size, intricate structure, and large quantity, are widely used in mechanical connections and equipment assembly. The quality of their surface rust removal directly affects the stability of the connection and the overall reliability of the equipment, placing extremely high demands on the efficiency and comprehensiveness of the rust removal process.
[0003] Currently, surface treatment equipment for metal castings on the market is mainly divided into two categories: manual treatment equipment and ordinary mechanical treatment equipment. For small metal castings such as bolts and screws, traditional manual treatment methods require manual hand-held rust removal tools to grind each one, or manually immersing the castings in batches in rust removal solution before cleaning. This is not only labor-intensive and costly, but also affected by the operator's experience, resulting in uneven rust removal. Some corners or threaded gaps are prone to incomplete rust removal, and the processing efficiency is far from meeting the needs of mass production.
[0004] Existing conventional mechanical surface treatment equipment is mostly designed for large or medium-sized castings. While its processing station is fixed and it can achieve rust removal liquid spraying or brush polishing through mechanical structures, it often requires frequent manual adjustment of the casting's position or flipping for small castings such as bolts and screws. If multiple small castings are added at once, they tend to stack during processing, preventing the bottom or contact surfaces from contacting the rust removal medium. If a piece-by-piece processing mode is used, repeated starting and stopping of the equipment and loading and unloading of castings are necessary, making the operation cumbersome. Although some devices are equipped with simple moving mechanisms to adjust the position of the rust removal components, they lack a targeted casting flipping structure, failing to achieve automatic posture adjustment of small castings during processing. This still requires subsequent manual processing, further extending the processing cycle and resulting in low overall rust removal efficiency, making it difficult to meet the needs of batch, high-efficiency surface treatment of small metal castings. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a surface treatment device for metal castings.
[0006] To achieve the above objectives, this utility model provides the following technical solution: A surface treatment device for metal castings includes: an equipment housing; symmetrical supports are arranged on the front and back of the top left side of the equipment housing; a crossbeam is fixed between the supports on both sides by bolts; a movable component is arranged on the crossbeam; fixed plates are fixed on the front and back sides of the crossbeam by bolts; pulley one and a motor are respectively arranged on the front and back fixed plates; pulley two is arranged on the shaft of the motor; a belt is arranged around pulley two and pulley one; one end of the belt is fixedly connected to the movable component; an L-shaped curved plate is arranged below the movable component; a cleaning cover is fixedly arranged on one side of the L-shaped curved plate; a water spray connector is connected to the top center of the cleaning cover; an air inlet pipe is connected to the top rear side of the cleaning cover; and a flipping component is arranged inside the equipment housing below the cleaning cover. The water spray connector is used to connect to an external spray gun, which delivers rust removal liquid into the cleaning cover. The air inlet pipe is connected to an external fan, which blows air into the cleaning cover through the air inlet pipe. The motor is used to start and drive the moving component to move on the crossbeam. The moving component then drives the cleaning cover to move. The tilting component is used to start and tilt the metal casting at the bottom of the cleaning cover while cleaning and removing rust.
[0007] Preferably, the flipping assembly includes: a flipping box one, with rodless cylinders symmetrically arranged on the inner walls of the front and rear sides of the equipment box, the magnetic moving blocks of the rodless cylinders being fixedly connected to the outer wall of the flipping box one, a flipping box two being arranged at the top of the flipping box one, a rotating shaft being fixedly arranged at the bottom of the flipping box two, the rotating shaft being movably connected through the through holes on the front and rear sides of the flipping box one, and fixed long plates symmetrically arranged on the left and right sides of the bottom inner side of the flipping box two, with multiple sets of hydraulic cylinders arranged on the fixed long plates, the top of the telescopic rod of the hydraulic cylinders being movably connected to the bottom cam of the flipping box two, the hydraulic cylinders symmetrically arranged on the left and right sides being used to start asynchronously to drive the flipping box two to repeatedly move from left high to right low along the rotating shaft, the flipping box two being used to place metal castings, and the rodless cylinders being used to drive the flipping box one to move up and down; Preferably, the bottom of the tilting box is provided with a drain outlet, which is connected to a pipe for draining excess liquid from the tilting box to the outside.
[0008] Preferably, a cushioning pad is provided at the bottom of the inner wall of the equipment housing, which provides cushioning when the housing is tilted and moved downwards.
[0009] Preferably, rollers are provided on both the upper and lower sides of the moving component. The rollers are used to contact the crossbeam to ensure the movement of the moving component. The motor is used to rotate to drive the belt to rotate, and the belt in turn drives the moving component to move.
[0010] Compared with the prior art, the present invention provides a surface treatment device for metal castings, which has the following advantages: The second tilting chamber in the tilting assembly is movably connected to the first tilting chamber via a rotating shaft. The bottom of the second tilting chamber is linked to a fixed long plate via multiple sets of hydraulic cylinders. The hydraulic cylinders on the left and right sides can be activated asynchronously, causing the second tilting chamber to repeatedly tilt and tilt along the rotating shaft, alternating between left-high and right-low and vice versa. When small castings such as bolts and screws are placed inside the second tilting chamber, the tilting action drives the castings to automatically roll and shift within the chamber, ensuring that every area of the casting surface is fully exposed to the rust-removing liquid sprayed from the cleaning cover. This avoids blind spots caused by stacked or adhered castings, eliminating the need for manual flipping or repositioning, significantly reducing manual operation steps and improving the comprehensiveness and efficiency of rust removal. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the rear side of this utility model; Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the equipment housing in this utility model; Figure 4 This is a three-dimensional structural diagram of the flip-top box II in this utility model.
[0012] The components include: 1. Equipment housing; 201. Support frame; 202. Crossbeam; 203. Moving component; 204. Motor; 205. Pulley 1; 206. Belt; 2031. Roller; 301. Cleaning cover; 302. Water spray interface; 303. Air inlet pipe; 401. Tilting housing 1; 4011. Rotating shaft; 402. Rodless cylinder; 4021. Magnetically coupled moving block; 403. Buffer pad; 501. Fixed long plate; 502. Tilting housing 2; 503. Hydraulic cylinder. Detailed Implementation
[0013] 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.
[0014] Reference Figures 1-4 As shown, the surface treatment device for metal castings in this embodiment includes an equipment housing 1. The equipment housing 1 serves as the installation and protection carrier for the entire device. It is made of cold-rolled steel plate welded together and the inner wall is coated with an anti-corrosion coating, which can effectively resist the erosion of rust removal liquid and prevent the inside of the housing from rusting and being damaged after long-term use. At the same time, a transparent observation door can be installed on the front side of the equipment housing 1 to facilitate the operator to observe the internal treatment situation in real time.
[0015] The top left side of the equipment housing 1 is symmetrically welded with brackets 201. The brackets 201 are made of carbon steel and have sufficient structural strength to support the weight of subsequent components. A crossbeam 202 is bolted between the two brackets 201. The bolted connection facilitates the disassembly, maintenance, or replacement of the crossbeam 202. The crossbeam 202 has an "I" shaped cross section, which improves its bending resistance. A moving component 203 is fitted on the crossbeam 202. Fixed plates are bolted to the front and rear sides of the crossbeam 202. The fixed plates on the front and rear sides are respectively mounted with pulley 205 and motor 204 via bearings. The motor 204 is a servo motor, which can achieve precise speed control. A pulley 2 is keyed to the shaft of the motor 204. The outer diameter of pulley 2 is the same as that of pulley 205. A wear-resistant rubber belt 206 is wrapped around the two. One end of the belt 206 is bolted to the side wall of the moving component 203 to ensure stable movement of the moving component 203 during belt drive.
[0016] An L-shaped bend plate is welded to the bottom of the moving component 203. A cleaning cover 301 is fixed to one side of the L-shaped bend plate by bolts, with its opening facing downwards and corresponding to the flip component below. A water spray connector 302 is installed at the top center of the cleaning cover 301 through a threaded connection. The inner wall of the water spray connector 302 is provided with sealing threads, which can be tightly connected to the delivery pipe of the external spray gun to prevent leakage during the delivery of rust removal liquid. An air inlet pipe 303 is also installed at the top rear side of the cleaning cover 301 through a threaded connection. The air inlet pipe 303 can be connected to the air outlet of an external fan. The airflow generated by the fan can be blown into the interior of the cleaning cover 301 through the air inlet pipe 303 to help the rust removal liquid evenly cover the surface of the casting and accelerate the drying of the surface of the casting after treatment.
[0017] A flipping assembly is installed below the cleaning cover 301 and inside the equipment housing 1. The flipping assembly includes a flipping housing 401. Rodless cylinders 402 are symmetrically fixed to the inner walls of the front and rear sides of the equipment housing 1 by bolts. The magnetic moving block 4021 of the rodless cylinder 402 is fixedly connected to the outer wall of the flipping housing 401 by bolts. The rodless cylinder 402 can drive the magnetic moving block 4021 to move smoothly up and down, thereby driving the flipping housing 401 to move up and down synchronously. A flipping housing 502 is installed on the upper part of the flipping housing 401. A rotating shaft 4011 is welded to the bottom of the flipping housing 502. The two ends of the rotating shaft 4011 pass through the through holes on the front and rear sides of the flipping housing 401, respectively, and are rotatably connected to the through holes by bearings, ensuring that the flipping housing 502 can rotate flexibly around the rotating shaft 4011. The inner bottom of the second tilting box 502 is symmetrically welded with fixed long plates 501. Multiple sets of hydraulic cylinders 503 are fixedly installed on the fixed long plates 501 by bolts. The top of the telescopic rod of the hydraulic cylinder 503 is movably connected to the bottom cam of the second tilting box 502 by a pin. The hydraulic cylinders 503 symmetrically arranged on the left and right sides are controlled by independent hydraulic systems, which can realize asynchronous extension and retraction, thereby driving the second tilting box 502 to repeat the tilting and flipping action of "left high right low - right high left low" along the rotating shaft 4011. The second tilting box 502 is used to place small metal castings such as bolts and screws. Its inner wall is polished smooth to avoid scratching the castings during the flipping process.
[0018] In some examples, the bottom of the tilting box 2 502 is provided with a circular drain outlet. The inner wall of the drain outlet is welded with an internal threaded connector, and a corrosion-resistant plastic pipe is threaded onto the internal threaded connector. The other end of the pipe extends to the outside of the equipment box 1 and is connected to the waste liquid collection box. This design can promptly discharge excess rust removal liquid and rust residue falling off the surface of the castings from the tilting box 2 502, avoiding secondary corrosion caused by the accumulation of liquid soaking the castings. At the same time, there is no need for manual cleaning of waste liquid in the box, reducing operation steps and improving processing efficiency.
[0019] In some examples, rollers 2031 are rotatably mounted on both the upper and lower sides of the moving component 203 via pins. The rollers 2031 are made of nylon, which is wear-resistant and has a low coefficient of friction. The rollers 2031 on the upper and lower sides respectively make rolling contact with the upper and lower surfaces of the crossbeam 202, which can convert the sliding friction between the moving component 203 and the crossbeam 202 into rolling friction, reduce the moving resistance, and ensure that the motor 204 drives the moving component 203 to move along the crossbeam 202 more smoothly through the belt 206, thereby reducing component wear.
[0020] In some examples, the rodless cylinder 402 is fitted with a telescopic dust cover. The two ends of the dust cover are fixedly connected to the inner wall of the equipment box 1 and the outer wall of the flip box 401 by clamps, which can effectively prevent rust removal liquid from splashing or dust in the air from adhering to the cylinder surface of the rodless cylinder 402, preventing the rodless cylinder 402 from jamming or malfunctioning due to rust or impurities, and ensuring the long-term stable operation of the rodless cylinder 402.
[0021] The working principle of this utility model is as follows: When using this surface treatment device for metal castings, the first step is to complete the preliminary preparations by placing the device stably in the work area and ensuring that the bottom of the device housing 1 is firmly attached to the ground. Next, connect the external equipment by sealing the delivery pipe of the external spray gun to the water spray connector 302 at the center of the top of the cleaning cover 301 to ensure no leakage during the delivery of the rust removal fluid. Simultaneously, connect the outlet of the external fan to the air inlet pipe 303 at the rear of the top of the cleaning cover 301 to ensure smooth airflow into the interior of the cleaning cover. Next, open the protective structure of the equipment housing 1, and evenly place the small metal castings such as bolts and screws to be processed into the flipping housing 2 502 of the flipping assembly to avoid excessive stacking of castings; start the rodless cylinder 402, which drives the flipping housing 1 401 to move up and down through its coupled magnetic moving block 4021, thereby adjusting the vertical distance between the flipping housing 2 502 and the cleaning cover 301 until the distance between the top of the casting and the opening of the cleaning cover is appropriate. At this time, the rodless cylinder 402 stops running, the flipping housing 1 401 is stabilized at the target height, and the buffer pad 403 at the bottom of the inner wall of the equipment housing 1 is waiting below the flipping housing 1 401 to prevent collisions during subsequent movement.
[0022] After preparation, the device is started to enter the surface treatment process. First, the motor 204 is started. The shaft of the motor 204 drives the pulley 2 to rotate. Since the pulley 2 and the pulley 1 205 on the front and rear fixed plates of the crossbeam 202 are connected by the belt 206, the rotation of the pulley 2 will drive the belt 206 to drive synchronously. During the transmission process, the belt 206 pulls the movable component 203 fixedly connected to it. At this time, the rollers 2031 on the upper and lower sides of the movable component 203 roll contact with the upper and lower surfaces of the crossbeam 202, converting sliding friction into rolling friction, ensuring that the movable component 203 moves smoothly along the crossbeam 202. Then, through the L-shaped curved plate below, the cleaning cover 301 moves synchronously left and right, realizing the full coverage movement of the cleaning cover over the area above the flip box 2 502.
[0023] While the cleaning cover 301 moves, the external spray gun and external fan are simultaneously activated. The spray gun continuously delivers rust removal fluid into the cleaning cover 301 through the water spray connector 302. Under the structural constraint of the cleaning cover 301, the rust removal fluid is evenly sprayed downwards onto the surface of the small castings inside the flip box 502. The airflow generated by the external fan is blown into the cleaning cover 301 through the air inlet pipe 303. On the one hand, this helps the rust removal fluid to form a uniform coating layer on the surface of the castings, avoiding local accumulation or leakage. On the other hand, it can accelerate the drying of the surface of the castings after subsequent rust removal.
[0024] During this process, the tilting assembly is activated synchronously to achieve comprehensive rust removal of the casting. Multiple sets of hydraulic cylinders 503 on the fixed long plate 501 at the bottom inside the tilting box 502 are activated. The hydraulic cylinders 503 on the left and right sides are independently controlled and extend and retract asynchronously. When the extension rod of the left hydraulic cylinder 503 extends and the extension rod of the right hydraulic cylinder 503 retracts, the thrust on the left and the pull on the right act together on the bottom of the tilting box 502, causing the tilting box 502 to tilt around the bottom pivot 4011, forming a "left high and right low" posture. Conversely, when the extension rod of the right hydraulic cylinder 503 extends and the extension rod of the left hydraulic cylinder 503 retracts, the tilting box 502 tilts in the opposite direction around the pivot 4011, forming a "right high and left low" posture. By cyclically and asynchronously starting the left and right hydraulic cylinders 503, the flipping box 502 achieves a repeated flipping action of "left high and right low - right high and left low". The small castings inside the box automatically roll and move under the action of the flipping force, so that the thread gaps, corners and other easily overlooked areas on the surface of the castings can be fully contacted with the rust removal liquid, and completely avoid the blind spots in rust removal caused by the stacking or sticking of castings.
[0025] Excess rust-removing fluid and rust residue detached from the casting surface generated during the process will flow into a connected pipe through the drain outlet at the bottom of the tilting chamber 2 (502), and then be directly discharged into a waste liquid collection tank outside the equipment housing 1. This prevents the accumulated liquid from soaking the casting inside the tilting chamber 2 (502) and causing secondary corrosion, while also eliminating the need for manual cleaning of the waste liquid. Operators can observe the internal processing status in real time through the transparent observation door of the equipment housing 1, and adjust the speed of motor 204, the flow rate of rust-removing fluid from the spray gun, and the tilting frequency of hydraulic cylinder 503 according to the degree of rust on the casting to ensure that the rust removal effect and efficiency are matched.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A metal casting surface treatment apparatus characterized by comprising: 1) a metal casting surface treatment device, include: The equipment housing (1) has symmetrical supports (201) on the top left side. A crossbeam (202) is fixed between the supports (201) on both sides by bolts. A moving component (203) is installed on the crossbeam (202). Fixed plates are fixed to the front and rear sides of the crossbeam (202) by bolts. A pulley (205) and a motor (204) are respectively installed on the front and rear fixed plates. A pulley (203) is installed on the shaft of the motor (204). The pulley (205) and the pulley (204) are connected. A belt (206) is arranged around one (205). One end of the belt (206) is fixedly connected to the moving component (203). An L-shaped bending plate is arranged below the moving component (203). A cleaning cover (301) is fixedly arranged on one side of the L-shaped bending plate. A water spray connector (302) is connected to the center of the top of the cleaning cover (301). An air inlet pipe (303) is connected to the rear side of the top of the cleaning cover (301). A flipping component is arranged inside the equipment box below the cleaning cover (301). The water spray connector (302) is used to connect to an external spray gun, which delivers rust removal liquid into the cleaning cover. The air inlet pipe (303) is connected to an external fan, which blows air into the cleaning cover through the air inlet pipe (303). The motor (204) is used to start and drive the moving component (203) to move on the crossbeam (202). The moving component (203) then drives the cleaning cover (301) to move. The flipping component is used to start and flip the metal casting at the bottom of the cleaning cover (301) while cleaning and removing rust.
2. A metal casting surface treatment apparatus according to claim 1, wherein The flipping assembly includes: a flipping housing 1 (401), with rodless cylinders (402) symmetrically arranged on the inner walls of the front and rear sides of the equipment housing (1), and the magnetic moving block (4021) of the rodless cylinder (402) fixedly connected to the outer wall of the flipping housing 1 (401). A flipping housing 2 (502) is arranged on the upper part of the flipping housing 1 (401), and a rotating shaft (4011) is fixedly arranged at the bottom of the flipping housing 2 (502). The rotating shaft (4011) is movably connected through the through holes on the front and rear sides of the flipping housing 1 (401). The flipping housing 2 (502) is 502 symmetrically arranged on the inner walls of the front and rear sides of the equipment housing (1), and the magnetic moving block (4021) of the rodless cylinder (402) is fixedly connected to the outer wall of the flipping housing 1 (401). 02) has fixed long plates (501) symmetrically arranged on the bottom left and right sides. Multiple hydraulic cylinders (503) are arranged on the fixed long plates (501). The top of the telescopic rod of the hydraulic cylinder (503) is movably connected to the bottom cam of the flip box (502). The hydraulic cylinders (503) symmetrically arranged on the left and right sides are used to start asynchronously to drive the flip box (502) to repeatedly move from left high to right low along the rotating shaft. The flip box (502) is used to place metal castings. The rodless cylinder (402) is used to drive the flip box (401) to move up and down.
3. A metal casting surface treatment apparatus according to claim 2, wherein The bottom of the tilting box 2 (502) is provided with a drain outlet, which is connected to a pipe for draining excess liquid inside the tilting box to the outside.
4. A metal casting surface treatment apparatus according to claim 1, wherein A buffer pad (403) is provided at the bottom of the inner wall of the equipment housing (1). The buffer pad (403) is used to provide cushioning when the flip housing (401) moves downward.
5. The apparatus for treating the surface of a metal casting according to claim 1, wherein The upper and lower sides of the moving assembly (203) are provided with rollers (2031), which are used to contact with the cross beam (202) to ensure the movement of the moving assembly (203), and the motor (204) is used to rotate to drive the belt to rotate, and the belt in turn drives the moving assembly (203) to move.