A sand box trolley automatic cleaning device

Abstract

The utility model discloses a sand box trolley automatic cleaning device, including actuating mechanism, movable mechanism, cleaning component, movable mechanism is connected with cleaning component, actuating mechanism links to each other with movable mechanism, and actuating mechanism passes through the drive movable mechanism horizontal linear motion to control cleaning component and carries out the cleaning to the surface of trolley, and the lower of cleaning component is the cleaning work area, and the cleaning component includes the sand plate of pushing and steel wire brush, and steel wire brush fixedly connected in the back of sand plate of pushing.

Description

Technical Field

[0001] This utility model is an automatic cleaning device for a sand box trolley. Background Technology

[0002] In the ferrous foundry industry, automated sand molding lines are widely used, where sand boxes are typically transported via sand box trolleys. During this process, after pouring, unpacking, and removing the casting, a large amount of molding sand often remains on the trolley's surface. If this residual sand is not removed promptly or thoroughly, it can cause uneven contact between the sand box and the trolley when placing a new sand box, resulting in uneven stress on the bottom of the mold and potentially mold breakage, ultimately leading to an increased scrap rate.

[0003] In traditional processes, cleaning residual sand from sandbox carts primarily relies on manual methods. Initially, shovels were used to scrape the sand, later evolving to the use of wire brushes. However, these methods have significant drawbacks in actual production. Shoveling is not thorough enough, often failing to completely remove residual sand and easily causing localized accumulation. While wire brushes improve cleaning efficiency, they are still insufficient when handling large amounts of residual sand, resulting in limited cleaning effectiveness. Furthermore, wire brushes themselves have poor wear resistance and are easily damaged, requiring frequent maintenance and replacement.

[0004] Furthermore, even with more meticulous cleaning methods, operators still need to spend a considerable amount of time on manual processing, severely restricting the continuity and cycle speed of the molding line, which is detrimental to the process requirements of large-scale, high-efficiency production. Therefore, the existing sand box trolley cleaning method is insufficient to meet the requirements of modern casting processes for automation, efficiency, and stability. There is an urgent need for a more efficient, reliable, and durable cleaning device or method to improve overall production efficiency and casting yield. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide an automatic cleaning device for a sand box trolley.

[0006] An automatic cleaning device for a sand box trolley includes an actuator, a moving mechanism, and a cleaning component. The moving mechanism is connected to the cleaning component, and the actuator is connected to the moving mechanism. The actuator controls the cleaning component to clean the surface of the trolley by driving the moving mechanism to move horizontally in a straight line. The cleaning working area is located below the cleaning component. The cleaning component includes a sand pusher plate and a wire brush, with the wire brush fixedly connected to the rear side of the sand pusher plate.

[0007] Furthermore, the wire brush is fixed behind the sand-pushing plate.

[0008] Furthermore, there is a predetermined gap between the height of the bottom of the sand pusher plate and the height of the trolley surface.

[0009] Furthermore, the movable mechanism includes a mounting base with multiple mounting shafts on it. Bearings are provided on both sides of the mounting shafts, and the bearings on both sides are movably connected in two mirror-parallel grooved guide rails. The cleaning component is fixedly connected to the mounting base.

[0010] Furthermore, a limit plate is provided on the movement trajectory of the mounting base, which is used to limit the stroke of the moving mechanism.

[0011] Furthermore, the actuator includes a cylinder, and the floating joint of the cylinder is fixedly connected to the mounting base.

[0012] Furthermore, the floating joint end of the cylinder is provided with a push block, and the side of the push block is provided with a slider. The slider cooperates with a fixed slide rail, which is set along the movement direction of the movable mechanism.

[0013] Furthermore, both the moving mechanism and the actuator are installed inside the base, which is a frame structure with guide rails on both sides inside the base. The actuator is located behind the moving mechanism, and the cleaning component is located below the moving mechanism.

[0014] Furthermore, the cylinder is mounted on a fixed base, which is fixed to the base. The fixed base includes a horizontally arranged fixed plate, a slide rail is arranged on the lower end face of the fixed plate, and the cylinder is located behind the slide rail.

[0015] Furthermore, the bottom of the sand-pushing plate is sloped.

[0016] Beneficial effects: Compared with the prior art, the present invention has the following advantages: The design combines a sand-pushing plate with a wire brush, fully utilizing the cleaning properties of both to create a "soft and hard" cleaning mechanism. The sand-pushing plate removes most of the sand from the sandbox cart in the first instance, followed by a fine cleaning with the wire brush, ensuring a more reliable and thorough cleaning effect.

[0017] Secondly, the cleaning action is driven by a cylinder, which realizes the automatic cleaning process of "one push and two sweeps" through its reciprocating motion. It is not only highly automated and easy to operate, but also significantly improves the overall cleaning efficiency and reduces manual intervention.

[0018] Furthermore, since the sand pusher plate undertakes most of the sand removal task, the load on the wire brush is significantly reduced, resulting in less wear. This design effectively extends the service life of the wire brush, reduces maintenance and replacement costs, and further improves the system's economy and sustainability.

[0019] To verify the practicality and advantages of this solution, we conducted comparative experiments, using both manual sand shoveling and an automatic cleaning device, with 200 castings tested in each method. The experiments focused on two key indicators: the cleaning cycle time of the sand box trolley and the casting breakage rate. The results show that the automatic cleaning device outperforms manual operation in both cleaning efficiency and product quality stability, providing data support and reliable evidence for its subsequent widespread application.

[0020] During operation, the cylinder drives the sand-pushing plate in a linear reciprocating motion, first pushing away most of the sand on the sand box trolley, followed by two cleaning cycles by the wire brush. This combination of hard and soft cleaning methods, achieved through the use of the sand-pushing plate and the wire brush, ensures reliable cleaning results while significantly improving the durability of the wire brush. Since the sand-pushing plate has already removed most of the sand, the load on the wire brush during subsequent cleaning is greatly reduced, thus minimizing wear.

[0021] In terms of sand removal efficiency, manual cleaning takes about 18 seconds, while the automatic cleaning device only takes 10 seconds, significantly improving operational efficiency. Regarding the scrap rate, manual cleaning results in a scrap rate of approximately 0.5%, while the automatic cleaning device achieves a 0% scrap rate, significantly improving product qualification rate and production stability. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of an automatic cleaning device for a sand box trolley. Figure 2 This is a diagram of the event organizer; Figure 3 This is a schematic diagram showing the movement of the active mechanism to the limit plate. Figure 4 This is a schematic diagram of the executing mechanism; In the diagram, 1 is the cylinder, 2 is the fixed plate, 3 is the base, 4 is the trolley, 5 is the moving mechanism, 6 is the cleaning component, 7 is the guide rail, 8 is the mounting shaft, 9 is the mounting seat, 10 is the bearing, 11 is the limit plate, 12 is the wire brush, 13 is the sand pusher plate, 14 is the slide rail, 15 is the push block, and 16 is the slider. Detailed Implementation

[0023] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0024] An automatic cleaning device for a sand box trolley includes an actuator, a moving mechanism 5, and a cleaning component 6. The moving mechanism 5 is connected to the cleaning component 6, and the actuator is connected to the moving mechanism 5. The actuator controls the cleaning component 6 to clean the surface of the trolley 4 by driving the moving mechanism 5 to move horizontally in a straight line. The cleaning working area is located below the cleaning component 6. The cleaning component 6 includes a sand-pushing plate 13 and a wire brush 12. The wire brush 12 is fixedly connected to the rear side of the sand-pushing plate 13.

[0025] This device is based on the fundamental principle of horizontal linear drive. The linear driving force applied by the actuator drives the movable mechanism 5 connected to it to move. The cleaning component 6 slides along the guide trajectory with the movable mechanism 5. At the same time, the sand-pushing plate 13 pushes and concentrates the sand particles scattered on the surface of the trolley 4, while the wire brush 12 further brushes away the residual particles, achieving dual cleaning. The fixed connection between the movable mechanism 5 and the cleaning component 6 ensures the stability of the movement trajectory of the cleaning component 6 and prevents it from shaking in the working chamber.

[0026] This cleaning device can achieve full-coverage cleaning of the surface of the sand box trolley 4, improve the automation level and efficiency of cleaning, avoid the labor intensity and unevenness caused by manual cleaning, and improve the overall cleanliness level of the factory operation and the stability of the production line.

[0027] In one possible implementation, the wire brush 12 is fixed behind the sand pusher plate 13.

[0028] This structure places the wire brush 12 at the tail of the sand-pushing plate 13, allowing the sand-pushing plate 13 to first push forward the surface loose sand, while the wire brush 12 then removes residual fine particles, forming a forward-pushing and backward-sweeping cleaning path. Through the synergistic effect of the front and rear structures, the removal capacity for adhesive particles is effectively improved.

[0029] This structural design enables the cleaning component 6 to adapt to various complex particle residue states, while reducing the possibility of incomplete cleaning in one go and improving the cleaning integrity rate.

[0030] In one possible implementation, there is a predetermined gap between the height of the bottom of the sand pusher plate 13 and the height of the surface of the trolley 4.

[0031] Setting an appropriate gap is to avoid direct hard contact between the sand pusher plate 13 and the surface of the trolley 4 during the cleaning process, thus preventing scratches on the surface of the trolley 4 or interference with the stability of its movement. At the same time, this gap ensures that the sand pusher plate 13 can effectively push the surface sand particles without reducing cleaning efficiency due to excessive friction.

[0032] This structure improves the stability of the device's operation and extends its service life, making it particularly suitable for cleaning objects with sensitive surfaces or uneven surfaces.

[0033] In one possible implementation, the movable mechanism 5 includes a mounting base 9, on which a plurality of mounting shafts 8 are provided. Bearings 10 are provided on both sides of the mounting shafts 8. The bearings 10 on both sides are movably connected in two parallel grooved guide rails 7. The cleaning component 6 is fixedly connected to the mounting base 9.

[0034] The structure of bearing 10 and grooved guide rail 7 enables low-friction sliding of the moving mechanism 5, ensuring the linear accuracy of the motion trajectory. The fit between mounting shaft 8 and guide rail 7 forms a stable guiding structure, preventing the cleaning assembly 6 from shifting or shaking during its back-and-forth movement.

[0035] This configuration improves the overall structure's guiding accuracy and operational smoothness, which is conducive to achieving stable operation at high frequencies.

[0036] In one possible implementation, a limiting plate 11 is provided on the movement trajectory of the mounting base 9, and the limiting plate 11 is used to limit the stroke of the moving mechanism 5.

[0037] The limiting plate 11 structure is used to physically limit the maximum range of motion of the mounting base 9, preventing the mechanism from moving beyond the designed track and causing misalignment or damage. The position of the limiting plate 11 is adjustable to adapt to different stroke requirements.

[0038] This design enhances operational safety and prevents structural damage caused by misoperation or drive malfunction.

[0039] In one possible implementation, the actuator includes a cylinder 1, the floating joint of which is fixedly connected to the mounting base 9.

[0040] The cylinder 1, as the actuator, is flexibly connected to the mounting base 9 via a floating joint, which ensures consistent transmission direction and absorbs lateral stress caused by slight deviations in the guide rail 7, thus avoiding jamming.

[0041] The floating connection method effectively improves the installation tolerance range and operational reliability of the device, and is suitable for batch assembly environments.

[0042] In one possible implementation, the floating joint end of the cylinder 1 is provided with a push block 15, and the side of the push block 15 is provided with a slider 16. The slider 16 cooperates with the fixed slide rail 14, and the slide rail 14 is arranged along the movement direction of the movable mechanism 5.

[0043] This structure, through the coordinated movement of slider 16 on slide rail 14, achieves further guidance and correction of the output of cylinder 1, ensuring that the thrust direction is consistent with guide rail 7, and preventing push block 15 from deflecting during force transmission.

[0044] This structure further improves the precision control of the actuator, ensuring the linear motion stability of the moving mechanism 5 and the cleaning component 6.

[0045] In one possible implementation, both the moving mechanism 5 and the actuator are installed inside the base 3, which is a frame structure. The guide rails 7 are located on both sides inside the base 3. The actuator is located behind the moving mechanism 5, and the cleaning component 6 is located below the moving mechanism 5.

[0046] The overall structure adopts a frame-type base 3, which highly integrates the execution and cleaning components 6 onto a unified platform. Guide rails 7 are distributed on both sides to facilitate the parallel movement of the movable mechanism 5. The execution mechanism is located at the rear and drives the movable mechanism 5 to slide through lateral thrust transmission.

[0047] The layout is compact and reasonable, which facilitates overall assembly and maintenance, and is suitable for embedded cleaning systems or automated production line environments.

[0048] In one possible implementation, the cylinder 1 is mounted on a fixed base, which is fixed to the base 3. The fixed base includes a horizontally arranged fixed plate 2, and a slide rail 14 is disposed on the lower end face of the fixed plate 2. The cylinder 1 is located behind the slide rail 14.

[0049] The fixed base provides a stable mounting platform for cylinder 1, and the slide rail 14 is positioned below it to form an auxiliary guiding structure, ensuring that cylinder 1 and the moving mechanism 5 maintain a consistent direction of propulsion. This structural arrangement effectively reduces deformation or wear caused by off-center loading during movement. This configuration enhances the stability of cylinder 1's drive and the efficiency of force transmission, making it suitable for precision cleaning operations in various industrial environments.

[0050] In one possible implementation, the bottom of the sand-pushing plate 13 is a slope.

[0051] The inclined surface design facilitates the natural convergence of sand particles during its forward movement, allowing surface material to be concentrated and swept to a specific area under the pushing force of the inclined surface. Furthermore, the inclined surface reduces interference from contact with the surface of the cart 4, improving cleaning smoothness. This design enhances sand pushing efficiency and is particularly suitable for cleaning scenarios with fine or widely distributed particles, facilitating subsequent dust collection or material discharge.

[0052] Instructions for use: When the trolley 4 enters the cleaning area, the cylinder 1 drives the sliding mechanism forward, and the sand-pushing plate 13 and wire brush 12 mounted on the sliding mechanism move forward simultaneously. First, the sand-pushing plate 13 pushes away most of the sand, and then the wire brush 12 begins cleaning. Because there is a limit plate 11 at the front end of the sliding mechanism, the cylinder 1 stops moving forward after reaching the limit, completing the first cleaning.

[0053] Subsequently, cylinder 1 drives the sliding mechanism to retract. During the return stroke, the sand-pushing plate 13 ceases to operate, while only the wire brush 12 continues to rotate, performing a secondary cleaning of the remaining areas, thereby achieving a more thorough cleaning effect.

[0054] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic cleaning device for a sand box trolley, characterized in that, It includes an actuator, a moving mechanism, and a cleaning component. The moving mechanism is connected to the cleaning component, and the actuator is connected to the moving mechanism. The actuator controls the cleaning component to clean the surface of the trolley by driving the moving mechanism to move horizontally in a straight line. The cleaning working area is below the cleaning component. The cleaning component includes a sand pusher and a wire brush. The wire brush is fixedly connected to the rear side of the sand pusher.

2. The automatic cleaning device according to claim 1, characterized in that, The wire brush is fixed behind the sand pusher plate.

3. The automatic cleaning device according to claim 1, characterized in that, There is a predetermined gap between the bottom of the sand pusher plate and the surface of the trolley.

4. The automatic cleaning device according to claim 1, characterized in that, The movable mechanism includes a mounting base with multiple mounting shafts. Bearings are provided on both sides of the mounting shafts. The bearings on both sides are movably connected in two mirror-parallel grooved guide rails. The cleaning component is fixedly connected to the mounting base.

5. The automatic cleaning device according to claim 4, characterized in that, The mounting base also has a limit plate on its movement trajectory, which is used to limit the stroke of the moving mechanism.

6. The automatic cleaning device according to claim 4, characterized in that, The actuator includes a cylinder, and the cylinder's floating joint is fixedly connected to the mounting base.

7. The automatic cleaning device according to claim 6, characterized in that, The cylinder has a push block at the end of its floating joint, and a slider on the side of the push block. The slider cooperates with a fixed slide rail, which is set along the movement direction of the movable mechanism.

8. The automatic cleaning device according to any one of claims 1-7, characterized in that, Both the moving mechanism and the actuator are installed inside the base, which is a frame structure. Guide rails are set on both sides inside the base. The actuator is located behind the moving mechanism, and the cleaning component is located below the moving mechanism.

9. The automatic cleaning device according to claim 7, characterized in that, The cylinder is mounted on a fixed base, which is fixed to a base. The fixed base includes a horizontally arranged fixed plate, a slide rail is arranged on the lower end face of the fixed plate, and the cylinder is located behind the slide rail.

10. The automatic cleaning device according to claim 1, characterized in that, The bottom of the sand-pushing plate is sloped.

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