Alloy steel shot screening device for aluminum casting surface polishing treatment
By using rotating scrapers and multi-stage mesh structures within the drum-shaped screening chamber, combined with a dust collection system, the problems of easy clogging and low separation efficiency in alloy steel shot screening devices have been solved, achieving efficient graded recycling and dust treatment, and improving the stability of the equipment and the utilization rate of materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XUANCHENG JIANYONG PRECISION METAL CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-12
AI Technical Summary
Existing vibrating screening devices are prone to clogging and have low separation efficiency when separating alloy steel shot, and they cannot effectively separate fine dust, affecting the polishing effect and equipment life.
The system employs a rotating scraper and multi-stage mesh structure within a drum-shaped screening chamber, combined with a dust collection system, to achieve multi-stage sorting and dust separation of alloy steel shot. The scraper is used to move the steel shot to prevent clogging, and the dust is treated by a multi-stage mesh grading and dust collection device.
It improves screening efficiency, enables efficient classification and recycling of alloy steel shot and dust treatment, reduces energy consumption and maintenance costs, and meets the high-quality requirements of modern polishing processes.
Smart Images
Figure CN224221995U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel shot screening technology, specifically an alloy steel shot screening device for surface polishing of aluminum castings. Background Technology
[0002] In metal surface treatment, casting cleaning, and polishing processes, alloy steel shot is widely used in shot blasting and strengthening treatments due to its high hardness, wear resistance, and recyclability. During use, alloy steel shot gradually breaks and wears down due to repeated impacts, resulting in uneven particle size, affecting polishing effects and equipment lifespan. Therefore, screening devices are needed to separate qualified steel shot from broken particles and dust to ensure process stability and material utilization. Currently, the most commonly used steel shot screening device in the industry is vibrating screen. However, vibrating screens achieve grading by driving the screen mesh to vibrate at high frequency with a motor. Their structure is relatively complex, and the impact of steel shot can easily cause the screen mesh to deform or become clogged. This makes it difficult to completely distinguish between severely worn steel shot and usable steel shot, resulting in low screening efficiency and poor separation of fine dust.
[0003] Therefore, there is an urgent need to develop an efficient and durable alloy steel shot screening device that can achieve multi-stage precise sorting, automatic dust removal and crushed steel shot recovery, while reducing energy consumption and maintenance costs, so as to meet the high requirements of modern polishing processes for steel shot quality. Utility Model Content
[0004] The purpose of this invention is to provide an alloy steel shot screening device for surface polishing of aluminum castings, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] An alloy steel shot screening device for surface polishing of aluminum castings includes a screening chamber, which is a horizontally placed drum. A motor is fixedly installed at the left end of the screening chamber, and a loading and unloading port is opened at the right end of the screening chamber. A detachable baffle is provided at the loading and unloading port. A main rotating shaft is fixedly connected to the drive end of the motor. A scraper is fixedly connected to the surface of the main rotating shaft, and a recycling box is fixedly connected to the lower surface of the screening chamber. The interiors of the screening chamber and the recycling box are interconnected. A first screen plate is installed at the bottom of the screening chamber.
[0007] As a further embodiment of this utility model: a dust collection pipe is fixedly connected to the upper side of the screening chamber, the dust collection pipe is interconnected with the interior of the screening chamber, and the other end of the dust collection pipe is connected to a corrugated pipe.
[0008] As a further improvement of this utility model: the inside of the recycling bin is equipped with a detachable primary recycling hopper and a secondary recycling hopper, the primary recycling hopper is located directly above the secondary recycling hopper, and a second mesh plate is provided at the bottom of the primary recycling hopper.
[0009] As a further improvement of this utility model, the mesh size of the second mesh plate is smaller than that of the first mesh plate.
[0010] As a further embodiment of this utility model: a base plate is fixed to the lower surface of the recycling bin, and a second bracket and a first bracket are fixed to the left and right sides of the upper surface of the base plate, respectively. The upper end of the first bracket is hinged to the surface of the screening chamber, and the upper end of the second bracket abuts against the surface of the screening chamber. An extension plate is fixed to the left side of the second bracket, and a cylinder is hinged to the upper surface of the extension plate. The driving end of the cylinder is hinged to the surface of the screening chamber.
[0011] As a further improvement of this utility model, the scraper is T-shaped.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] By setting up a screening chamber with a rotating scraper inside, the steel shot is agitated and tumbled, causing steel shot of different wear levels to roll inside the screening chamber. This prevents the accumulation of steel shot from clogging the mesh of the first screen plate. Some larger steel shot will fall back to the top of the first screen plate, while smaller steel shot and steel shot fragments will pass through the first screen plate and fall into the recycling bin for collection. Screening can continue, improving screening efficiency. The recycling bin is equipped with first and second recycling hoppers for graded recycling. During the rolling of the steel shot, lighter dust is sucked away, while heavier metal dust passes through the first screen plate and enters the recycling bin for collection. Larger steel shot can be poured out and reused. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of an alloy steel shot screening device for surface polishing of aluminum castings.
[0015] Figure 2 This is a schematic diagram of the internal structure of an alloy steel shot screening device used for surface polishing of aluminum castings.
[0016] In the diagram: 1. Screening bin; 2. Motor; 3. Baffle; 4. Main shaft; 5. Scraper; 6. First support; 7. Second support; 8. Base plate; 9. Recycling bin; 10. Primary recycling hopper; 11. Secondary recycling hopper; 12. Extension plate; 13. Cylinder; 14. Dust collection pipe; 15. Corrugated pipe; 16. First screen plate; 17. Second screen plate. Detailed Implementation
[0017] Please see Figures 1-2 In this embodiment of the present invention, an alloy steel shot screening device for surface polishing of aluminum castings includes a screening chamber 1, which is a horizontally placed drum. A motor 2 is fixedly installed at the left end of the screening chamber 1, and a loading and unloading port is opened at the right end of the screening chamber 1. A detachable baffle 3 is provided at the loading and unloading port. A main rotating shaft 4 is fixedly connected to the drive end of the motor 2. A scraper 5 is fixedly connected to the surface of the main rotating shaft 4. The scraper 5 is T-shaped, and a recycling box 9 is fixedly connected to the lower surface of the screening chamber 1. The interiors of the screening chamber 1 and the recycling box 9 are interconnected. A first mesh plate 16 is installed at the bottom of the screening chamber 1.
[0018] Preferably, a dust collection pipe 14 is fixedly connected to the upper side of the screening chamber 1, and the dust collection pipe 14 is interconnected with the interior of the screening chamber 1. The other end of the dust collection pipe 14 is connected to a corrugated pipe 15.
[0019] Preferably, the recycling bin 9 is equipped with a detachable primary recycling hopper 10 and a secondary recycling hopper 11. The primary recycling hopper 10 is located directly above the secondary recycling hopper 11, and a second mesh plate 17 is provided at the bottom of the primary recycling hopper 10.
[0020] Preferably, the mesh size of the second mesh plate 17 is smaller than the mesh size of the first mesh plate 16.
[0021] Preferably, a base plate 8 is fixed to the lower surface of the recycling bin 9, and a second bracket 7 and a first bracket 6 are fixed to the left and right sides of the upper surface of the base plate 8, respectively. The upper end of the first bracket 6 is hinged to the surface of the screening chamber 1, and the upper end of the second bracket 7 abuts against the surface of the screening chamber 1. An extension plate 12 is fixed to the left side of the second bracket 7, and a cylinder 13 is hinged to the upper surface of the extension plate 12. The driving end of the cylinder 13 is hinged to the surface of the screening chamber 1.
[0022] The working principle of this utility model is as follows: When screening used alloy steel shot, the baffle 3 can be opened first, the alloy steel shot can be put into the screening chamber 1, and the baffle 3 can be closed. At the same time, the corrugated pipe 15 is connected to the dust collection end of the dust collection fan. Then, the motor 2 is turned on, so that the main shaft 4 rotates. Since a scraper 5 is provided, the alloy steel shot located inside the screening chamber 1 can be moved by the scraper 5, so that the alloy steel shot tumbles inside the screening chamber 1. Some of the larger metal steel shot will fall back to the upper side of the first screen plate 16, while smaller metal steel shot and steel shot fragments will pass through the first screen plate 16 and fall into the recycling box 9. Since the recycling box 9 is equipped with a primary recycling hopper, The primary recycling hopper 10 and the secondary recycling hopper 11 are equipped with a second screen plate 17 at the bottom. The second screen plate 17 can further distinguish smaller metal steel shot and steel shot fragments. The smaller ones will pass through the second screen plate 17 and fall into the secondary recycling hopper 11. When the metal steel shot tumbles inside the screening chamber 1, some of the lighter dust will be sucked away through the dust collection pipe 14, and some of the heavier metal dust will pass through the first screen plate 16 and the second screen plate 17 and fall into the secondary recycling hopper 11. After the metal steel shot is screened, the motor 2 is turned off, the baffle 3 is opened, and the cylinder 13 is extended. Using the hinge of the screening chamber 1 and the first support 6, the screening chamber 1 is tilted, and the metal steel shot is poured out from the loading and unloading port and collected.
[0023] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. An alloy steel shot screening device for surface polishing of aluminum castings, comprising a screening chamber (1), characterized in that: The screening chamber (1) is a horizontally placed roller. A motor (2) is fixedly installed at the left end of the screening chamber (1). A loading and unloading port is opened at the right end of the screening chamber (1). A detachable baffle (3) is provided at the loading and unloading port. A main rotating shaft (4) is fixedly connected to the drive end of the motor (2). A scraper (5) is fixedly connected to the surface of the main rotating shaft (4). A recycling box (9) is fixedly connected to the lower surface of the screening chamber (1). The interiors of the screening chamber (1) and the recycling box (9) are interconnected. A first screen plate (16) is installed at the bottom of the screening chamber (1).
2. The alloy steel shot screening device for surface polishing of aluminum castings according to claim 1, characterized in that: A dust collection pipe (14) is fixedly connected to the upper side of the screening chamber (1). The dust collection pipe (14) and the interior of the screening chamber (1) are interconnected. The other end of the dust collection pipe (14) is connected to a corrugated pipe (15).
3. The alloy steel shot screening device for surface polishing of aluminum castings according to claim 1, characterized in that: The recycling bin (9) is equipped with a detachable primary recycling hopper (10) and a secondary recycling hopper (11). The primary recycling hopper (10) is located directly above the secondary recycling hopper (11), and a second mesh plate (17) is provided at the bottom of the primary recycling hopper (10).
4. The alloy steel shot screening device for surface polishing of aluminum castings according to claim 3, characterized in that: The mesh size of the second mesh plate (17) is smaller than that of the first mesh plate (16).
5. The alloy steel shot screening device for surface polishing of aluminum castings according to claim 1, characterized in that: The bottom surface of the recycling bin (9) is fixed to a base plate (8). The upper surface of the base plate (8) is fixed to the left and right sides respectively with a second bracket (7) and a first bracket (6). The upper end of the first bracket (6) is hinged to the surface of the screening chamber (1). The upper end of the second bracket (7) abuts against the surface of the screening chamber (1). An extension plate (12) is fixed to the left side of the second bracket (7). A cylinder (13) is hinged to the upper surface of the extension plate (12). The driving end of the cylinder (13) is hinged to the surface of the screening chamber (1).
6. The alloy steel shot screening device for surface polishing of aluminum castings according to claim 1, characterized in that: The scraper (5) is T-shaped.