A casting sand separating device
By designing a molding sand separation device, the problems of dust diffusion and accidental aspiration of molding sand particles during the molding sand separation process are solved by utilizing the principle of air pressure difference and screening components, thus achieving efficient dust collection and improved molding sand purity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI ALLIANCE ENVIRONMENTAL PROTECTION & ENERGY SAVING TECHNOLOGY CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-30
AI Technical Summary
Existing casting equipment suffers from problems such as severe dust diffusion, limited dust collection range, uneven suction leading to accidental aspiration of molding sand particles, and low dust collection efficiency during the molding sand separation process.
A casting molding sand separation device was designed, which adopts an inclined adjustment component and a two-stage box, combined with a dust collection component, a screening component and a lifting component. It utilizes the principle of air pressure difference to achieve uniform dust collection through equally spaced air holes and air chamber structure. The dust cover accurately covers the molding sand processing area, and the screening component improves the purity of the molding sand.
It effectively limits dust diffusion, improves dust capture efficiency, avoids accidental aspiration of molding sand particles, and ensures efficient molding sand separation and environmental protection.
Smart Images
Figure CN224424189U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sand casting technology, specifically to a casting sand separation device. Background Technology
[0002] Sand casting is a casting method that produces castings in sand molds. Steel, iron, and most non-ferrous alloy castings can be obtained using sand casting. Because the molding materials used in sand casting are inexpensive and readily available, and the mold manufacturing is simple, it can adapt to single-piece production, batch production, and mass production of castings. For a long time, it has been a basic process in casting production.
[0003] The process of separating molding sand generates a large amount of dust, which spreads unchecked and severely pollutes the working environment. Early dust collection designs were often flawed; some equipment used only simple side-suction hoods or small enclosed hoods, limiting the dust collection range and failing to fully cover the critical areas of molding sand processing. This resulted in a large amount of dust overflowing. Furthermore, uneven suction power distribution could lead to excessive suction in certain areas, potentially drawing in molding sand particles and affecting the normal separation and recovery of the sand. Poor dust collection processes resulted in significant dust generation and overflow during production, polluting the environment and causing the finished sand and gravel powder content to exceed standards. This reflects the problem of low dust collection efficiency. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] This invention provides a casting sand separation device, which aims to solve the problems mentioned in the background art.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, the present invention provides the following technical solution: a casting sand separation device, comprising a collection box; a tilt adjustment component is installed on the top of the collection box, a secondary box is provided on one side of the collection box, and a dust collection component is provided on the top of the tilt adjustment component and the secondary box;
[0008] The dust collection assembly includes a dust cover, an air chamber, air holes, and a connecting pipe. The dust cover is installed above the tilt adjustment assembly and the secondary box, respectively. An air chamber is opened inside the dust cover, and air holes are opened at equal intervals on the inner side of the dust cover and connected to the air chamber. A connecting pipe is installed on the top of the dust cover.
[0009] As a preferred technical solution of this application, the collection box has a discharge port symmetrically opened on one side, and a sealing cover is installed inside the discharge port.
[0010] As a preferred technical solution of this application, the collection box and the secondary box are equipped with a screening component and a lifting component from top to bottom. A guide plate is provided on one side of the collection box, and a feed inlet is provided on one side of the secondary box at the position corresponding to the guide plate.
[0011] As a preferred technical solution of this application, the tilt adjustment assembly includes an electric push rod, a mounting frame, and a rotating roller. The electric push rod is installed at equal intervals on the top of the collection box, the mounting frame is installed on the top of the electric push rod, the rotating roller is rotatably installed at equal intervals on the inner side of the mounting frame, and a dust cover is installed on the top of the mounting frame.
[0012] As a preferred technical solution of this application, the screening assembly includes a mounting plate, a vibrating motor, and a sieve screen. The mounting plate is installed on the inner wall of the collection box and the secondary box, and the vibrating motor is installed on the top of the mounting plate. The sieve screen is installed on the top of the vibrating motor.
[0013] As a preferred technical solution of this application, the lifting assembly includes a hydraulic cylinder and a guide plate. The hydraulic cylinder is rotatably mounted on the inner wall of the primary and secondary discharge boxes, and the guide plate is rotatably mounted on the top of the hydraulic cylinder.
[0014] As a preferred technical solution of this application, a discharge gate 2 is provided on one side of the secondary box at the corresponding position of the vibration motor and the guide plate, and a protective plate is installed inside the discharge gate 2.
[0015] Beneficial effects
[0016] Compared with existing technologies, this utility model has a dust collection component installed on the top of the tilt adjustment component and the secondary box. Based on the principle of air pressure difference, the dust enters the air chamber through the air holes. Under the continuous push of the negative pressure airflow, the dust entering the air chamber will converge along the internal channel of the air chamber towards the connecting pipe. This ensures that the dust collection force is uniform in all positions within the dust cover area, avoiding local dust accumulation or leakage. Finally, the dust cover, as a physical barrier for dust collection, precisely corresponds to the key areas of molding sand processing, effectively limiting the spread of dust and confining the dust inside the dust cover. This improves the dust capture efficiency of the air holes. At the same time, the equidistant design of the air holes ensures the uniform distribution of adsorption force, avoiding the accidental suction of molding sand particles due to excessive local suction force or the dust residue due to insufficient local suction force. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a frontal cross-sectional view of the present invention.
[0019] Figure 3 This is a bottom-view cross-sectional structural diagram of the present invention;
[0020] Figure 4 This is a side sectional view of the present invention.
[0021] Figure 5 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.
[0022] In the diagram: 1. Collection box; 101. Outlet 1; 102. Sealing cover; 2. Tilting adjustment assembly; 201. Electric actuator; 202. Mounting frame; 203. Rotating roller; 3. Dust collection assembly; 301. Dust cover; 302. Air chamber; 303. Air hole; 304. Connecting pipe; 4. Guide plate; 5. Secondary box; 501. Inlet; 6. Screening assembly; 601. Mounting plate; 602. Vibration motor; 603. Screening mesh; 7. Lifting assembly; 701. Hydraulic cylinder; 702. Guide plate; 8. Outlet 2; 9. Protective plate. Detailed Implementation
[0023] 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.
[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0026] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0027] The present application provides a casting sand separation device, including a collection box 1; a tilt adjustment component 2 is installed on the top of the collection box 1, a secondary box 5 is provided on one side of the collection box 1, and a dust collection component 3 is provided on the top of the tilt adjustment component 2 and the secondary box 5.
[0028] The dust collection assembly 3 includes a dust cover 301, an air chamber 302, air holes 303, and a connecting pipe 304. The dust cover 301 is installed above the tilt adjustment assembly 2 and the secondary box 5, respectively. The dust cover 301 has an air chamber 302 inside. Air holes 303 are equally spaced on the inner side of the dust cover 301 and are connected to the air chamber 302. The connecting pipe 304 is installed on the top of the dust cover 301.
[0029] Specifically, such as Figures 1 to 5 As shown, during the molding sand processing, the frictional dust generated when the rotating roller 203 on the tilting adjustment component 2 transports the molding sand, and the fine particles raised when the screening component 6 in the collection box 1 and the secondary box 5 vibrates and screens the molding sand, will diffuse into the space covered by the dust cover 301. Since the air holes 303 evenly spaced on the inner side of the dust cover 301 are directly connected to the air chamber 302, and the air chamber 302 is under negative pressure, according to the principle of air pressure difference, these diffused dust particles will be carried by the airflow formed at the air holes 303 and enter the interior of the air chamber 302 through the air holes 303. Under the continuous push of the negative pressure airflow, the dust particles entering the air chamber 302 will converge along the internal channel of the air chamber 302 towards the connecting pipe 304. Since the air chamber 302 is a closed space... The vents 303 are evenly spaced, ensuring uniform suction power across the area covered by the dust cover 301. This prevents dust accumulation or leakage. Finally, the dust is transported through the connecting pipe 304 to the dust collection device of the external negative pressure equipment for centralized collection. As a physical barrier for dust collection, the dust cover 301 precisely covers the key areas of molding sand processing, effectively limiting the spread of dust and confining it inside the dust cover 301. This improves the dust capture efficiency of the vents 303. At the same time, the evenly spaced design of the vents 303 ensures uniform distribution of adsorption force, preventing the accidental suction of molding sand particles due to excessive local suction or dust residue due to insufficient local suction.
[0030] Furthermore, a discharge port 101 is symmetrically provided on one side of the collection box 1, and a sealing cover 102 is installed inside the discharge port 101. A screening assembly 6 and a lifting assembly 7 are installed sequentially from top to bottom inside the collection box 1 and the secondary box 5. A guide plate 4 is provided on one side of the collection box 1, and a feed inlet 501 is provided on one side of the secondary box 5 at a position corresponding to the guide plate 4. The screening assembly 6 includes a mounting plate 601, a vibrating motor 602, and a screen 603. The mounting plate 601 is installed on the collection box 1 and the secondary box 5. On the inner wall, a vibration motor 602 is installed on the top of the mounting plate 601, and a sieve screen 603 is installed on the top of the vibration motor 602. The lifting assembly 7 includes a hydraulic cylinder 701 and a guide plate 702. The hydraulic cylinder 701 is rotatably installed on the inner wall of the discharge port 101 and the secondary box 5. The guide plate 702 is rotatably installed on the top of the hydraulic cylinder 701. A discharge door 2 8 is opened on one side of the secondary box 5 at the corresponding position of the vibration motor 602 and the guide plate 702. A protective plate 9 is installed inside the discharge door 2 8.
[0031] Specifically, such as Figures 1 to 5 As shown, the molding sand to be processed is conveyed to the tilt adjustment component 2, and the molding sand is smoothly conveyed along the tilted mounting frame 202 into the collection box 1. This step, through the adjustment of the tilt angle, can adapt to the conveying needs of molding sand with different flow rates, ensuring that the molding sand enters the subsequent processing process evenly. After the molding sand enters the collection box 1, it first falls onto the screen 603 of the screening component 6. The vibration motor 602 starts, driving the screen 603 to vibrate at high frequency, performing preliminary screening of the molding sand. Molding sand particles that meet the particle size requirements fall through the screen 603 to the bottom of the collection box 1, while larger impurities or agglomerated molding sand are intercepted on the surface of the screen 603. When it is necessary to clean these impurities, the hydraulic cylinder 701 in the lifting component 7 extends, pushing the guide plate 702 to rotate upward, pushing the impurities on the surface of the guide plate 702 toward the discharge port 101. The impurities can be discharged by opening the sealing cover 102. After the molding sand is preliminarily screened by the collection box 1, some of it will enter the secondary box 5 through the feed port 501 through the guide plate 4 under its own gravity and vibration. Inside the secondary box 5, the same screening component 6 performs a second fine screening of the molding sand to further remove residual fine impurities and improve the purity of the molding sand. The impurities remaining on the screen 603 after the second screening can be discharged from the discharge gate 8 by activating the corresponding lifting component 7.
[0032] Furthermore, the tilt adjustment assembly 2 includes an electric push rod 201, a mounting frame 202, and a rotating roller 203. The electric push rod 201 is installed at equal intervals on the top of the collection box 1. The mounting frame 202 is installed on the top of the electric push rod 201. The rotating roller 203 is rotatably installed at equal intervals on the inner side of the mounting frame 202. A dust cover 301 is installed above the mounting frame 202.
[0033] Specifically, such as Figures 1 to 5As shown, the molding sand to be processed is conveyed to the tilt adjustment component 2. The electric actuator 201 can extend and retract according to actual needs, thereby adjusting the tilt angle of the mounting frame 202. The rotating roller 203 inside the mounting frame 202 rotates under the action of the weight of the molding sand and the external thrust, smoothly conveying the molding sand along the tilted mounting frame 202 into the collection box 1. This step, by adjusting the tilt angle, can adapt to the molding sand conveying requirements of different flow rates, ensuring that the molding sand enters the subsequent processing evenly.
[0034] Working principle: The molding sand to be processed is conveyed to the tilt adjustment component 2. The electric actuator 201 adjusts the tilt angle of the mounting frame 202, and the rotating roller 203 smoothly feeds the molding sand into the collection box 1. The molding sand first falls onto the sieve screen 603 of the screening component 6 in the collection box 1. The vibration motor 602 drives the sieve screen 603 to vibrate, performing preliminary screening. Qualified molding sand falls to the bottom of the box, while impurities are discharged from the discharge port 101 by the hydraulic cylinder 701 of the lifting component 7, pushing the guide plate 702. Partial preliminary screening is achieved. After the molding sand is fed into the secondary box 5 through the feed inlet 501 via the guide plate 4, the screening component 6 in the secondary box 5 performs secondary screening to further remove impurities. The impurities are discharged from the discharge gate 8 through the lifting component 7. The dust collection component 3 works simultaneously. The external negative pressure equipment creates negative pressure in the air chamber 302 in the dust cover 301 through the connecting pipe 304. The dust generated during the molding sand processing is sucked into the air chamber 302 by the air hole 303 and sent to the external dust collection device through the connecting pipe 304 to achieve centralized dust collection.
[0035] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A casting sand separation device, comprising a collection box (1); characterized in that: The top of the collection box (1) is equipped with a tilt adjustment component (2), a secondary box (5) is provided on one side of the collection box (1), and a dust collection component (3) is provided on the top of the tilt adjustment component (2) and the secondary box (5). The dust collection assembly (3) includes a dust cover (301), an air chamber (302), an air hole (303), and a connecting pipe (304). The dust cover (301) is installed above the tilt adjustment assembly (2) and the secondary box (5). An air chamber (302) is opened inside the dust cover (301). Air holes (303) are opened at equal intervals on the inner side of the dust cover (301) and are connected to the air chamber (302). A connecting pipe (304) is installed on the top of the dust cover (301).
2. The casting sand separation device according to claim 1, characterized in that: The collection box (1) has a discharge port (101) symmetrically opened on one side, and a sealing cover (102) is installed inside the discharge port (101).
3. The casting sand separation device according to claim 1, characterized in that: The collection box (1) and the secondary box (5) are equipped with a screening component (6) and a lifting component (7) from top to bottom. A guide plate (4) is provided on one side of the collection box (1), and a feed inlet (501) is provided on one side of the secondary box (5) at the position corresponding to the guide plate (4).
4. The casting sand separation device according to claim 1, characterized in that: The tilt adjustment assembly (2) includes an electric push rod (201), a mounting frame (202), and a rotating roller (203). The electric push rod (201) is installed at equal intervals on the top of the collection box (1). The mounting frame (202) is installed on the top of the electric push rod (201). The rotating roller (203) is rotatably installed at equal intervals on the inner side of the mounting frame (202). A dust cover (301) is installed above the mounting frame (202).
5. The casting sand separation device according to claim 3, characterized in that: The screening component (6) includes a mounting plate (601), a vibration motor (602), and a sieve screen (603). The mounting plate (601) is installed on the inner wall of the collection box (1) and the secondary box (5). The vibration motor (602) is installed on the top of the mounting plate (601), and the sieve screen (603) is installed on the top of the vibration motor (602).
6. The casting sand separation device according to claim 3, characterized in that: The lifting assembly (7) includes a hydraulic cylinder (701) and a guide plate (702). The hydraulic cylinder (701) is rotatably mounted on the inner wall of the discharge port (101) and the secondary box (5). The guide plate (702) is rotatably mounted on the top of the hydraulic cylinder (701).
7. The casting sand separation device according to claim 1, characterized in that: The secondary box (5) has a discharge gate (8) on one side, corresponding to the vibration motor (602) and the guide plate (702). A protective plate (9) is installed inside the discharge gate (8).