An adjustable high-quality sand and gravel gradation preparation device
By designing an adjustable high-quality sand and gravel gradation sand preparation device, the precise weighing of sand is achieved by using a weighing device and an electrically controlled valve system, which solves the problems of low sand preparation efficiency and insufficient precision in the existing technology, and improves sand preparation efficiency and precision.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING LEICAI MINING CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-07-03
AI Technical Summary
In existing technologies, the sand preparation process is labor-intensive, has low precision and low efficiency, and cannot achieve precise control.
An adjustable high-quality sand and gravel gradation preparation device was designed. It utilizes a weighing device and an electrically controlled valve system to control the weight of the sand through spring compression and contact switches, thereby achieving accurate weighing and automatic valve closure.
It enables precise weighing of sand of different weights, improves sand mixing efficiency and accuracy, and reduces manual labor.
Smart Images
Figure CN224444496U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of sand mixing devices, specifically an adjustable high-quality sand and gravel gradation mixing device. Background Technology
[0002] Sand preparation is a step in the casting process. Sand casting involves many steps, including pattern and core box manufacturing, sand preparation, molding, core making, box assembly, melting, pouring, sand removal, cleaning, and inspection. Sand preparation is done by workers, which is not only labor-intensive and has low precision, but also has low efficiency.
[0003] To address this issue, we propose an adjustable high-quality sand and gravel gradation preparation device. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides an adjustable high-quality sand and gravel gradation sand preparation device, which solves the problems mentioned in the background technology, such as the large amount of labor involved, low precision, and low efficiency of sand preparation by workers.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: an adjustable high-quality sand and gravel gradation sand making device, including a storage bin, characterized in that: multiple support columns are fixedly connected to the bottom of the storage bin, an electrically controlled valve is installed inside the storage bin, and a weighing device is installed between the multiple support columns;
[0008] The weighing device includes a weighing bucket, a mounting plate, and a fixing plate. Both the mounting plate and the fixing plate are fixedly connected to the support column. An electrically controlled valve is installed inside the weighing bucket. Multiple moving rods are fixedly connected to the bottom of the weighing bucket. Multiple fixing buckets are fixedly connected to the top of the mounting plate. The moving rods are slidably disposed inside the fixing buckets, and springs are installed between the moving rods and the fixing buckets. A slider is slidably disposed inside the fixing plate. A moving plate is fixedly connected to the side wall of the slider. A contact switch is installed at the top of the moving plate, and a contact block is fixedly connected to the outer wall of the weighing bucket.
[0009] Preferably, the bottom end of the slider is fixedly connected to a limiting plate, and the internal thread of the fixing plate is connected to a limiting screw.
[0010] Preferably, an anti-slip pad is adhered to the side wall of the limiting screw.
[0011] Preferably, the outer wall of the fixing plate is engraved with indicator scale.
[0012] Preferably, a dust cover is fixedly connected to the top of the weighing barrel.
[0013] Preferably, multiple nozzles are fixedly installed at the bottom end of the mounting plate.
[0014] (III) Beneficial Effects
[0015] Compared with the prior art, this utility model provides an adjustable high-quality sand and gravel gradation preparation device, which has the following beneficial effects:
[0016] This adjustable high-quality sand and gravel gradation sand making device continuously increases the total weight of the weighing barrel and its contents as the sand falls from the storage hopper into the weighing barrel. This compresses the spring, causing the weighing barrel to gradually move downwards until the contact block contacts the contact switch. Once the electric control valve closes, the weight of the sand is precisely controlled. Furthermore, because the position of the contact switch is adjustable, it is convenient to accurately weigh sand with different weight requirements. The device is highly accurate and can greatly improve the efficiency of sand preparation, making it highly practical. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a partial cross-sectional view of the present invention.
[0019] Figure 3 This is a schematic diagram of a partial assembly structure of the present invention;
[0020] Figure 4 This is a schematic diagram of a partial connection structure of the present invention.
[0021] In the diagram: 1. Storage hopper; 2. Support column; 3. Electrically controlled valve one; 4. Weighing hopper; 5. Mounting plate; 6. Fixing plate; 7. Electrically controlled valve two; 8. Moving rod; 9. Fixing hopper; 10. Spring; 11. Slider; 12. Moving plate; 13. Contact switch; 14. Contact block; 15. Limiting plate; 16. Limiting screw; 17. Anti-slip pad; 18. Indicating scale; 19. Dust cover; 20. Nozzle. Detailed Implementation
[0022] 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.
[0023] Example
[0024] Please see Figure 1-4An adjustable high-quality sand and gravel gradation sand making device includes a storage bin 1, with multiple support columns 2 fixedly connected to the bottom of the storage bin 1. An electrically controlled valve 3 is installed inside the storage bin 1. A weighing device is installed between the multiple support columns 2. The weighing device includes a weighing bin 4, a mounting plate 5, and a fixing plate 6. The mounting plate 5 and the fixing plate 6 are both fixedly connected to the support columns 2. An electrically controlled valve 7 is installed inside the weighing bin 4. Multiple moving rods 8 are fixedly connected to the bottom of the weighing bin 4. Multiple fixing bins 9 are fixedly connected to the top of the mounting plate 5. The moving rods 8 are slidably disposed inside the fixing bins 9, and a spring 10 is installed between the moving rods 8 and the fixing bins 9. A slider 11 is slidably disposed inside the fixing plate 6. A moving plate 12 is fixedly connected to the side wall of the slider 11. A contact switch 13 is installed at the top of the moving plate 12, and a contact block 14 is fixedly connected to the outer wall of the weighing bin 4.
[0025] When weighing a specific weight of sand, first slide slider 11 to a suitable height so that when contact block 14 contacts contact switch 13, weighing barrel 4 descends to a specific height, opening electric valve one, allowing the sand inside storage barrel 1 to fall into weighing barrel 4. As the amount of sand inside weighing barrel 4 increases, weighing barrel 4 gradually moves downward, compressing spring 10. Since the elastic coefficient of spring 10 is fixed, after being compressed to a specific amount, spring 10 will provide a specific elastic force to weighing barrel 4 through moving column, thus achieving the weighing effect. This continues until contact block 14 contacts contact switch 13, and electric control valve one 3 closes, thereby achieving the effect of weighing a specific required amount of sand with high accuracy, which helps improve sand preparation efficiency.
[0026] Please see Figure 3 and Figure 4 The bottom end of the slider 11 is fixedly connected to the limiting plate 15, and the internal thread of the fixing plate 6 is connected to the limiting screw 16.
[0027] When the slider 11 moves, the limiting plate 15 moves accordingly. When the slider 11 moves to the desired position, the limiting screw is rotated to limit and fix the limiting plate 15, thus fixing the slider 11.
[0028] Please see Figure 3 and Figure 4 An anti-slip pad 17 is adhered to the side wall of the limiting screw 16.
[0029] The anti-slip pad 17 can increase the friction between the limit screw 16 and the limit plate 15, thereby improving the fixing effect of the slider 11.
[0030] Please see Figure 4 The outer wall of the fixing plate 6 is engraved with an indicator scale 18.
[0031] The setting of the indicator scale 18 makes it easy to observe the height of the slider 11, which also facilitates the control of the symmetrical weight.
[0032] Please see Figure 1 A dust cover 19 is fixedly connected to the top of the weighing bucket 4.
[0033] The dust cover 19 is designed to prevent dust from being released into the air as the sand falls into the weighing bucket 4.
[0034] Please see Figure 2 Multiple nozzles 20 are fixedly installed at the bottom of the mounting plate 5.
[0035] By connecting the nozzle 20 to an external water supply device, water can be sprayed from the nozzle 20 during the process of releasing sand from the weighing tank 4 to prevent dust from being released into the air, thus further improving the environmental friendliness of the device.
[0036] In summary, the working principle and process of this adjustable high-quality sand and gravel gradation sand making device are as follows: First, place the device at the desired location. Add a significant amount of sand to the storage bin 1. Before weighing a specific weight of sand, slide the slider 11, causing the contact switch 13 to move accordingly. Simultaneously observe the indicator scale 18 until the height of the slider 11 meets the weight requirement. Then, rotate the limit screw 16 to fix the position of the slider 11. Open the electrical control valve 3, allowing the sand in the storage bin 1 to fall into the weighing bin 4. The weighing bin 4 then gradually lowers the contact block 14 until it contacts the switch, at which point the electrical control valve 3 closes, achieving precise weighing of the sand. This improves sand mixing efficiency and has high practicality.
[0037] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. A controllable fine aggregate grading sand preparation device, comprising a storage barrel (1), characterized in that: The bottom of the storage bin (1) is fixedly connected to multiple support columns (2), and an electrically controlled valve (3) is installed inside the storage bin (1). A weighing device is installed between the multiple support columns (2). The weighing device includes a weighing barrel (4), a mounting plate (5), and a fixing plate (6). The mounting plate (5) and the fixing plate (6) are both fixedly connected to the support column (2). An electrically controlled valve (7) is installed inside the weighing barrel (4). Multiple moving rods (8) are fixedly connected to the bottom of the weighing barrel (4). Multiple fixing barrels (9) are fixedly connected to the top of the mounting plate (5). The moving rods (8) are slidably arranged inside the fixing barrels (9), and a spring (10) is installed between the moving rods (8) and the fixing barrels (9). A slider (11) is slidably arranged inside the fixing plate (6). A moving plate (12) is fixedly connected to the side wall of the slider (11). A contact switch (13) is installed at the top of the moving plate (12), and a contact block (14) is fixedly connected to the outer wall of the weighing barrel (4).
2. The controllable fine aggregate grading sand device according to claim 1, wherein: The bottom end of the slider (11) is fixedly connected to a limiting plate (15), and the internal thread of the fixing plate (6) is connected to a limiting screw (16).
3. The controllable fine aggregate grading sand device according to claim 2, wherein: An anti-slip pad (17) is adhered to the side wall of the limiting screw (16).
4. The controllable fine aggregate grading sand device according to claim 1, wherein: Indicator scales (18) are engraved on the outer wall of the fixing plate (6).
5. The controllable fine aggregate grading sand device according to claim 1, wherein: A dust cover (19) is fixedly connected to the top of the weighing bucket (4).
6. The controllable fine aggregate grading sand device according to claim 1, wherein: Multiple nozzles (20) are fixedly installed at the bottom of the mounting plate (5).