Casting sand vibrating screen for casting
By setting up rotating paddles and bristle structures in the cast sand vibrating screen, the problem of uneven distribution of cast sand is solved, screening efficiency and accuracy are improved, maintenance process is simplified, and costs are reduced.
Patent Information
- Application Number
- CN202422548752.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-22
AI Technical Summary
The existing cast sand vibrating screen for casting does not have the function of evenly dispersing cast sand during the screening process, which leads to massing of materials on the surface of the screening plate, reducing screening efficiency and accuracy, and making screening plates difficult to clean, increasing maintenance costs and operating complexity.
By setting the rotating paddle to break the cast sand when feeding, ensuring uniform distribution, use a hydraulic rod to drive the rotating paddle to lower and wipe the surface of the screen with a bristle brush to remove fine particles and dust, and combine with the electric push rod to push and pull the screen plate to improve screening accuracy and efficiency.
The uniform distribution of cast sand is achieved, screening efficiency and accuracy are improved, screening holes are prevented, screening holes are blocked, the permeability and screening continuity of the screen plate are maintained, and maintenance difficulty and cost are reduced.
Smart Images
Figure CN223250476U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vibrating screens, in particular to a foundry sand vibrating screen for casting. Background Art
[0002] The existing foundry sand vibrating screen is mainly used to screen foundry sand. In the casting process, foundry sand is used as the material to fill the mold or core box to make the shell of the casting. The vibrating screen separates the foundry sand into particles of different sizes through vibration.
[0003] However, when it is in use, it does not have the function of evenly dispersing the foundry sand on the surface of the screen plate, which will cause the material to clump in certain areas of the screen plate surface, thereby reducing the screening efficiency. After the screen plate is used, there is no component for cleaning the screen plate, resulting in a large amount of foundry sand or impurities accumulating on the screen plate after a period of use. This will affect the screening efficiency and accuracy of the vibrating screen, requiring regular shutdown for cleaning, increasing maintenance costs and operational complexity. Utility Model Content
[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and provide a foundry sand vibrating screen for foundry. The rotating paddle is provided to break up the foundry sand entering the box body when feeding so that it falls evenly on the surface of the vibrating screen. This uniform distribution can prevent the formation of clumping materials on the surface of the screen plate, ensure that the thickness of the foundry sand layer on the entire screen surface is basically consistent, and improve the screening efficiency and accuracy. After the screen plate is used, the hydraulic rod drives the rotating paddle to descend, so that the bristles under the rotating paddle are attached to the surface of the screen plate. Driven by the motor, the surface of the screen plate can be brushed to remove fine particles and dust attached to the screen holes and the screen plate, which helps to restore the original screening efficiency of the screen plate and maintain the optimal working state of the vibrating screen. The electric push rod can repeatedly push and pull the screen plate in the chute, which helps to improve the screening accuracy and efficiency, ensure that the foundry sand that meets the specifications is effectively separated and collected, and can effectively prevent the foundry sand from accumulating and clogging in the screen holes, especially when the particles are large in size or irregular in shape, which helps to maintain the permeability of the screen plate and the continuity of screening.
[0005] The top of the lifting box is connected with the lifting box bottom surface, and the lifting box bottom surface is connected with the lifting box bottom surface.
[0006] According to the foundry sand vibrating screen for casting described in the utility model, the wheel assembly includes: a rotating shaft, and the rotating shaft is rotatably connected to the lower surface of the supporting leg.
[0007] According to the foundry sand vibrating screen for casting described in the utility model, the wheel assembly further includes: a connecting frame, and the connecting frame is fixedly connected to the side surface of the rotating shaft.
[0008] According to the foundry sand vibrating screen for casting described in the utility model, the wheel assembly further includes: a pulley, and the pulley is rotatably connected to the inner surface of the connecting frame.
[0009] According to the foundry sand vibrating screen for casting described in the utility model, a handle is fixedly connected to the front surface of the sealing cover, and an anti-slip sleeve is fixedly connected to the side surface of the handle.
[0010] According to the foundry sand vibrating screen for casting described in the utility model, the upper surface of the feed hopper is movably connected with a cover plate, and the cover plate is provided with a card slot.
[0011] According to the foundry sand vibrating screen for casting described in the utility model, the side surface of the feed hopper is fixedly connected with an elastic clip, and the elastic clip is movably connected to the clip groove.
[0012] Beneficial effects
[0013] 1. Compared with existing technologies, this foundry sand vibrating screen uses a rotating paddle to break up the sand entering the box during feeding, causing it to evenly distribute across the vibrating screen surface. This uniform distribution prevents the formation of clumping materials on the screen plate surface, ensuring a substantially uniform thickness of the sand layer across the entire screen surface, thereby improving screening efficiency and accuracy. After the screen plate is used, the hydraulic lever drives the rotating paddle down, allowing the bristles beneath the paddle to contact the surface of the screen plate. Driven by the motor, the paddle brushes the surface of the screen plate, removing fine particles and dust adhering to the screen holes and the screen plate. This helps restore the original screening efficiency of the screen plate and maintain the vibrating screen in optimal working condition.
[0014] 2. Compared with the existing technology, the foundry sand vibrating screen can repeatedly push and pull the screen plate in the chute through the electric push rod, which helps to improve the screening accuracy and efficiency, ensure that the foundry sand that meets the specifications is effectively separated and collected, and can effectively prevent the foundry sand from accumulating and clogging in the screen holes, especially when the particle size is large or the shape is irregular. This helps to maintain the permeability of the screen plate and the continuity of screening. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0016] Figure 1 This is a main structural diagram of a foundry sand vibrating screen for casting in the utility model;
[0017] Figure 2 This is a cross-sectional structural diagram of a foundry sand vibrating screen for casting according to the present utility model;
[0018] Figure 3 This is a left-side structural diagram of a foundry sand vibrating screen for casting according to the present utility model;
[0019] Figure 4 This is a rear structural diagram of a foundry sand vibrating screen for casting according to the present invention.
[0020] Legend:
[0021] 1. Card slot; 2. Elastic buckle; 3. Sealing cover; 4. Handle; 5. Anti-slip cover; 6. Support leg; 7. Cover plate; 8. Feed hopper; 9. Box body; 10. Connecting shell; 11. Discharge port; 12. Discharge hopper; 13. Rotating shaft; 14. Connecting frame; 15. Pulley; 16. Bracket; 17. Motor; 18. Rotating paddle; 19. Bristles; 20. Electric push rod; 21. Hydraulic cylinder; 22. Hydraulic rod; 23. Slide; 24. Screen plate. DETAILED DESCRIPTION
[0022] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.
[0023] Reference Figure 1-4 The embodiment of the utility model is a foundry sand vibrating screen for casting, which includes: a box body 9 for screening foundry sand inside, a support leg 6 is fixedly connected to the lower surface of the box body 9, and a wheel assembly is provided on the lower surface of the support leg 6. The wheel assembly includes: a rotating shaft 13, which is rotatably connected to the lower surface of the support leg 6, and the wheel assembly also includes: a connecting frame 14, which is fixedly connected to the side surface of the rotating shaft 13.
[0024] The rotary wheel assembly also includes: a pulley 15, which is rotatably connected to the inner surface of the connecting frame 14 and is used to move the equipment. The upper surface of the box body 9 is connected to the feed hopper 8 for feeding. The upper surface of the feed hopper 8 is movably connected to the cover plate 7. The cover plate 7 is provided with a card slot 1. The side surface of the feed hopper 8 is fixedly connected with an elastic clip 2, and the elastic clip 2 is movably connected to the card slot 1. The lower surface of the box body 9 is connected to the discharge hopper 12 for discharging the casting sand passing through the screen. The box body 9 is provided with a chute 23. The inner surface of the chute 23 is slidably connected with a screen plate 24 for screening casting sand. The side surface of the box body 9 is fixedly connected to a connecting shell 10 for connecting and fixing an electric push rod 20. The inner surface of the connecting shell 10 is fixedly connected to an electric push rod 20 for repeatedly pushing the screen plate 24.
[0025] The other end of the electric push rod 20 is fixedly connected to the side surface of the sieve plate 24. The box body 9 is provided with a discharge port 11 for discharging materials that cannot pass through the sieve plate 24. The discharge port 11 is located on the side of the sieve plate 24. The inner wall of the discharge port 11 is movably connected with a sealing cover 3. The front surface of the sealing cover 3 is fixedly connected with a handle 4. The side surface of the handle 4 is fixedly connected with an anti-slip sleeve 5. The inner surface of the box body 9 is fixedly connected with a bracket 16. The upper surface of the bracket 16 is fixedly connected with a hydraulic cylinder 21. The output end of the hydraulic cylinder 21 is fixedly connected with a hydraulic rod 22 for driving the rotating paddle 18 to descend, so that the bristles 19 are attached to the surface of the sieve plate 24. The lower end of the hydraulic rod 22 is fixedly connected with a motor 17. The output end of the motor 17 is fixedly connected with a rotating paddle 18 for rotating and breaking up the materials entering the box body 9. The lower surface of the rotating paddle 18 is fixedly connected with bristles 19 for brushing the surface of the sieve plate 24. The bristles 19 are movably connected to the sieve plate 24.
[0026] Working principle: When in use, remove the cover plate 7 from the feed hopper 8, add the foundry sand that needs to be sieved into the inside of the feed hopper 8, and the foundry sand enters the interior of the box body 9 through the feed hopper 8. At the same time, the motor 17 drives the rotating paddle 18 to rotate, breaking up the foundry sand that enters the interior of the box body 9 and making it evenly distributed on the surface of the screen plate 24. After the foundry sand falls on the surface of the screen plate 24, the electric push rod 20 is used to repeatedly push the screen plate 24 so that the foundry sand above can quickly pass through the screen plate 24 and be discharged through the discharge hopper 12. After the use of the screen plate 24 is finished, the hydraulic rod 22 can drive the bristles 19 to descend to the surface of the screen plate 24 to brush the screen plate 24.
[0027] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.
Claims
1. A foundry sand vibrating screen for casting, characterized in that: include: A box body (9), the lower surface of the box body (9) is fixedly connected to a support leg (6), the lower surface of the support leg (6) is provided with a wheel assembly, the upper surface of the box body (9) is connected to an inlet hopper (8), the lower surface of the box body (9) is connected to an outlet hopper (12), a chute (23) is provided on the box body (9), the inner surface of the chute (23) is slidably connected to a sieve plate (24), the side surface of the box body (9) is fixedly connected to a connecting shell (10), the inner surface of the connecting shell (10) is fixedly connected to an electric push rod (20), and the other end of the electric push rod (20) is fixedly connected to the side surface of the sieve plate (24); The box body (9) is provided with a discharge port (11), the discharge port (11) is located on the side of the sieve plate (24), the inner wall of the discharge port (11) is movably connected to a sealing cover (3), the inner surface of the box body (9) is fixedly connected to a bracket (16), the upper surface of the bracket (16) is fixedly connected to a hydraulic cylinder (21), the output end of the hydraulic cylinder (21) is fixedly connected to a hydraulic rod (22), the lower end of the hydraulic rod (22) is fixedly connected to a motor (17), the output end of the motor (17) is fixedly connected to a rotating paddle (18), the lower surface of the rotating paddle (18) is fixedly connected to bristles (19), and the bristles (19) are movably connected to the sieve plate (24).
2. A foundry sand vibrating screen for casting according to claim 1, characterized in that: The rotating wheel assembly comprises a rotating shaft (13), and the rotating shaft (13) is rotatably connected to the lower surface of the supporting leg (6).
3. A foundry sand vibrating screen for casting according to claim 2, characterized in that: The rotating wheel assembly further comprises a connecting frame (14), wherein the connecting frame (14) is fixedly connected to the side surface of the rotating shaft (13).
4. A foundry sand vibrating screen for casting according to claim 3, characterized in that: The rotating wheel assembly further comprises a pulley (15), wherein the pulley (15) is rotatably connected to the inner surface of the connecting frame (14).
5. A foundry sand vibrating screen for casting according to claim 1, characterized in that: The front surface of the sealing cover (3) is fixedly connected to a handle (4), and the side surface of the handle (4) is fixedly connected to an anti-slip sleeve (5).
6. A foundry sand vibrating screen for casting according to claim 1, characterized in that: The upper surface of the feed hopper (8) is movably connected to a cover plate (7), and a clamping slot (1) is provided on the cover plate (7).
7. A foundry sand vibrating screen according to claim 6, characterized in that: An elastic buckle (2) is fixedly connected to the side surface of the feed hopper (8), and the elastic buckle (2) is movably connected to the clamping slot (1).