Casting sand core batch dip-coating device and construction method
By using a batch dip coating device and immersion method for casting sand cores, the problems of low efficiency, paint waste, and environmental pollution caused by traditional spraying methods have been solved, achieving uniform coating on the surface of sand cores and high-efficiency production.
Patent Information
- Application Number
- CN202511768165.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-03-03
AI Technical Summary
Traditional spraying methods are inefficient in casting sand core processing, resulting in significant paint waste, harm to the environment and operator health, and uneven coating.
A batch dipping coating device for casting sand cores is adopted, which processes multiple sand cores by immersion. The batch dipping coating is achieved by using components such as dipping tank, gantry frame, winch and cylinder. The sand cores are fixed by support net and displacement rod to ensure uniform coating coverage.
It improves the surface quality and performance of sand cores, reduces paint waste and environmental pollution, lowers labor intensity, meets the needs of large-scale production, and ensures a clean working environment and safe operation.
Smart Images
Figure CN121589256A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a sand core processing device, and more particularly to a batch impregnation coating device and construction method for casting sand cores, belonging to the field of sand core processing technology. Background Technology
[0002] In the casting production process, sand core preparation is a crucial step. Traditionally, after sand core preparation, it typically requires spraying to enhance its performance and surface quality. However, traditional spraying methods have the following drawbacks: ① Spraying requires processing each sand core individually, which is not only time-consuming and labor-intensive but also inefficient, making it difficult to meet the needs of large-scale production. ② During spraying, paint is prone to splattering, resulting in paint waste, pollution of the working environment, increased cleaning difficulty, and potential adverse health effects on operators. Furthermore, uneven surface coverage during spraying can lead to areas with excessively thick or thin coatings, affecting the final quality of the sand core. Summary of the Invention
[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a batch impregnation coating device and construction method for casting sand cores. The construction is carried out by immersion, and by batch immersion, multiple sand cores can be processed at one time, which greatly improves work efficiency.
[0004] The technical solution adopted by this invention to solve the technical problem is as follows: A batch impregnation device for casting sand cores includes an impregnation tank, a gantry frame, and a winch. The gantry frame is installed outside the impregnation tank, and the winch is installed on the top of the gantry frame. Displacement plates are connected to the inner walls of both sides of the gantry frame by cylinders. A rectangular frame is installed above the displacement plates. U-shaped frames are installed on both sides of the rectangular frame, and a displacement rod is slidably connected between the two U-shaped frames. The U-shaped frames are connected to the winch by ropes. A construction platform is installed on the right side of the impregnation tank, and support legs are installed at the four corners of the bottom of the construction platform.
[0005] The rectangular frame is provided with first rollers at the four corners of its bottom, and the displacement plate is provided with limit plates. The limit plates are distributed in an L-shape and are located outside the first rollers.
[0006] The bottom of each end of the displacement plate is provided with a second roller, which is located at the edge of each end of the immersion tank. The height of the displacement plate is the same as the height of the construction platform.
[0007] Connecting rods are provided between the inner walls of the rectangular frame, and a support net is provided on the top of the rectangular frame.
[0008] There are two displacement rods, which are fixedly connected to the U-shaped frame by bolts. A collar is provided in the middle of the top surface of the U-shaped frame. A lifting device is connected to the top of the collar by a hook. The top of the lifting device is connected to the winch by a rope.
[0009] The construction method of the batch impregnation coating device for casting sand cores includes the following steps: S1. Place the rectangular frame on the construction platform, and place the casting sand cores on the support net in sequence, and clamp and fix the sand cores with displacement rods; S2. Start the cylinder to make the displacement plate move towards each other along the edges of both ends of the immersion tank until the position of the displacement plate corresponds to the position of the bottom roller of the rectangular frame. S3. Place the sand core on the support net and clamp and fix the sand core with two displacement rods, and fix the displacement rods to the U-shaped frame with bolts; S4. Use the rollers at the bottom of the rectangular frame to move the rectangular frame onto the displacement plate, and connect the hook at the bottom of the lifting device to the collar on the top surface of the U-shaped frame. S5. Start the cylinder to reset the cylinder push rod. At this time, the displacement plate moves to the outside of the immersion tank until the rectangular frame is in the air. S6. Start the winch to immerse the rectangular frame and the sand core above the support net into the immersion tank. After immersion, use the winch to remove the rectangular frame from the immersion tank. S7. Restart the cylinder to move the displacement plate to the position below the bottom roller of the rectangular frame, and remove the lifting device from the collar; S8. Move the displacement frame to the construction platform, and then remove the sand cores one by one.
[0010] The positive and beneficial effects of this invention are: 1. This invention uses an immersion method to apply coating to sand cores, which allows the coating to be more evenly covered on the surface of the sand core. This avoids the uneven coating, excessively thick or thin areas, and paint splattering that may occur with traditional spraying. It improves the surface quality and performance of the sand core, enhances its durability and reliability, and at the same time reduces the pollution of the working environment by the coating, reduces the difficulty of cleaning, and makes the working environment cleaner and safer, which is beneficial to the health of the operators.
[0011] 2. This invention, by setting a support mesh on the top of the rectangular frame, enables multiple casting sand cores to be placed for impregnation coating at one time, achieving batch processing. This greatly reduces the processing time for a single sand core, significantly improves work efficiency, and meets the needs of large-scale production. By setting a cylinder on the inner wall of the gantry and connecting the cylinder push rod to the displacement plate, it serves to support the rectangular frame. At the same time, the position of the displacement plate can be adjusted according to the construction steps, reducing the tedious steps of manual operation, further improving the efficiency of the entire impregnation coating process, and reducing labor intensity.
[0012] 3. The present invention uses two displacement rods that are slidably connected on two U-shaped frames to fix the sand core, thereby preventing the sand core from floating or moving during immersion. The core maintains a stable and accurate position throughout the immersion coating process, further ensuring the stability of the immersion coating quality. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the gantry frame structure of the present invention; Figure 3 This is a connection diagram of the displacement plate of the present invention; Figure 4 This is a schematic diagram of the rectangular frame structure of the present invention; Among them: 1-immersion tank, 2-gantry frame, 3-winner, 4-cylinder, 5-displacement plate, 6-second roller, 7-limiting plate, 8-rectangular frame, 9-support net, 10-U-shaped frame, 11-displacement rod, 12-lifting tool, 13-construction platform, 14-outrigger. Detailed Implementation
[0014] The invention will be further explained and described below with reference to the accompanying drawings: Example 1, see Figures 1-4 A batch impregnation device for casting sand cores includes an impregnation tank 1, a gantry frame 2, and a winch 3. The gantry frame 2 is installed outside the impregnation tank 1, and the winch 3 is installed on top of the gantry frame 2. The gantry frame is located above the impregnation tank 1. Displacement plates 5 are connected to the inner walls of both sides of the gantry frame 3 by cylinders 4. The cylinders are located above the impregnation tank, and the push rods of the cylinders are fixedly connected to the displacement plates. A rectangular frame 8 is installed above the displacement plates 5. U-shaped frames 10 are installed on both sides of the rectangular frame 8, and a displacement rod 11 is slidably connected between the two U-shaped frames 10. The U-shaped frames 10 are connected to the winch 3 by ropes. A construction platform 13 is installed on the right side of the impregnation tank 1, and support legs 14 are installed at the four corners of the bottom of the construction platform 13.
[0015] First rollers are respectively set at the four corners of the bottom of the rectangular frame 8, and limit plates 7 are set on the displacement plate 5. The limit plates are distributed in an L shape and are located outside the first rollers.
[0016] The bottom of both ends of the displacement plate 5 is provided with a second roller 6. The second roller 6 is located at the edge of both ends of the immersion tank 1. The height of the displacement plate 5 is the same as the height of the construction platform 13.
[0017] Connecting rods are provided between the inner walls of the rectangular frame 8, and a support net 9 is provided at the top of the rectangular frame 8.
[0018] There are two displacement rods 11, which are fixedly connected to the U-shaped frame 10 by bolts. A collar is provided in the middle of the top surface of the U-shaped frame 10. A lifting device 12 is connected above the collar by a hook. The lifting device 12 is connected to the winch 3 above the lifting device 12 by a rope.
[0019] In the above description, when the cylinder is in the reset state, that is, the cylinder push rod is in the retracted state and the displacement plate is away from the displacement plate, the start of the winch can immerse the rectangular frame in the immersion box, thereby realizing the batch immersion of the sand core.
[0020] In the above description, when the cylinder is working, it can move to the position below the bottom roller of the second displacement plate. At this time, the displacement plate plays the role of supporting the rectangular frame, which makes it convenient for the workers to connect the winch rope to the lifting device, and the hook at the bottom of the lifting device is connected to the collar.
[0021] In the above description, the winch consists of a wire roller, a support frame, and a motor. The wire roller is rotatably connected between the inner walls of the support frame, and a pull rope is installed on the wire roller. The motor is installed outside the support frame, and the output end of the motor is fixedly connected to the wire roller. Under the action of the motor, the pull rope can be lowered and tightened.
[0022] Example 2, the construction method of the above-mentioned batch impregnation coating device for casting sand cores includes the following steps: S1. Place the rectangular frame 8 on the construction platform 13, and place the casting sand core on the support net 9 in sequence, and clamp and fix the sand core by the displacement rod 11. S2. Start cylinder 4 to move displacement plate 5 towards each other along the edges of both ends of immersion tank 1 until the position of displacement plate 5 corresponds to the position of bottom roller of rectangular frame 8. S3. Place the sand core on the support net 9, and clamp and fix the sand core with two displacement rods 11, and fix the displacement rods 11 to the U-shaped frame 10 with bolts. S4. Use the rollers at the bottom of the rectangular frame 8 to move the rectangular frame 8 onto the displacement plate 5, and connect the hook at the bottom of the lifting device 12 to the collar on the top surface of the U-shaped frame 10. S5. Start cylinder 4 to reset cylinder 4 push rod. At this time, displacement plate 5 moves to the outside of immersion tank 1 until rectangular frame 8 is in the air. S6. Start the winch to immerse the sand core above the rectangular frame 8 and the support net 9 into the immersion tank 1. After immersion, use the winch 3 to take the rectangular frame 8 out of the immersion tank 1. S7. Restart cylinder 4 to move displacement plate 5 to the position below the bottom roller of rectangular frame 8, and remove lifting device 12 from collar; S8. Move the displacement frame 8 to the construction platform, and then remove the sand cores one by one.
[0023] This invention employs a batch soaking method for construction, enabling the processing of multiple sand cores at once, greatly improving work efficiency. Simultaneously, the soaking method effectively prevents paint from splashing everywhere, reducing paint waste and environmental pollution, and ensuring a clean working environment. Furthermore, soaking allows the paint to cover the sand core surface more evenly, improving the quality and performance of the sand cores.
Claims
1. A batch impregnation and coating device for casting sand cores, comprising an impregnation tank (1), a gantry frame (2), and a winch (3), characterized in that: The immersion tank (1) is provided with a gantry frame (2) on the outside. A winch (3) is provided on the top of the gantry frame (2). Displacement plates (5) are connected to the inner walls of both sides of the gantry frame (3) by cylinders (4). A rectangular frame (8) is provided above the displacement plate (5). U-shaped frames (10) are provided on both sides of the rectangular frame (8), and a displacement rod (11) is slidably connected between the two U-shaped frames (10). The U-shaped frames (10) are connected to the winch (3) by a pull rope. A construction platform (13) is provided on the right side of the immersion tank (1). Support legs (14) are provided at the four corners of the bottom of the construction platform (13).
2. The batch impregnation and coating device for casting sand cores according to claim 1, characterized in that: The rectangular frame (8) has four first rollers at its bottom corners, and the displacement plate (5) has a limiting plate (7) which is L-shaped and located outside the first rollers.
3. The batch impregnation and coating device for casting sand cores according to claim 1, characterized in that: The bottom of both ends of the displacement plate (5) is provided with a second roller (6), which is located at the edge of both ends of the immersion tank (1). The height of the displacement plate (5) is the same as the height of the construction platform (13).
4. The batch impregnation and coating device for casting sand cores according to claim 1, characterized in that: Connecting rods are provided between the inner walls of the rectangular frame (8), and a support net (9) is provided on the top of the rectangular frame (8).
5. The batch impregnation and coating device for casting sand cores according to claim 1, characterized in that: There are two displacement rods (11), which are fixedly connected to the U-shaped frame (10) by bolts. A collar is provided in the middle of the top surface of the U-shaped frame (10). A lifting device (12) is connected above the collar by a hook. The lifting device (12) is connected to the winch (3) above by a pull rope.
6. A construction method for a batch impregnation coating device for casting sand cores according to any one of claims 1-5, characterized in that, Includes the following steps: S1. Place the rectangular frame (8) on the construction platform (13), and place the casting sand core on the support net (9) in sequence, and clamp and fix the sand core by means of the displacement rod (11); S2. Start the cylinder (4) to move the displacement plate (5) towards each other along the edges of both ends of the immersion tank (1) until the position of the displacement plate (5) corresponds to the position of the bottom roller of the rectangular frame (8); S3. Place the sand core on the support net (9), and clamp and fix the sand core with two displacement rods (11), and fix the displacement rods (11) to the U-shaped frame (10) with bolts. S4. Use the rollers at the bottom of the rectangular frame (8) to move the rectangular frame (8) onto the displacement plate (5), and connect the hook at the bottom of the lifting device (12) to the collar on the top surface of the U-shaped frame (10). S5. Start the cylinder (4) to reset the cylinder (4) push rod. At this time, the displacement plate (5) moves to the outside of the immersion tank (1) until the rectangular frame (8) is in the air. S6. Start the winch to immerse the sand core above the rectangular frame (8) and the support net (9) into the immersion tank (1). After immersion, use the winch (3) to take the rectangular frame (8) out of the immersion tank (1). S7. Restart the cylinder (4) to move the displacement plate (5) to the position below the bottom roller of the rectangular frame (8) and remove the lifting device (12) from the collar. S8. Move the displacement frame (8) to the construction platform, and then remove the sand cores one by one.