Foundry sand vibration recovery device

Abstract

The utility model relates to the technical field of foundry sand recovery, in particular to a foundry sand vibration recovery device which comprises a frame body, a limiting frame and a protective cover, a first screen and a second screen are fixedly installed at the bottom of the inner side of the frame body, and a vibration motor is arranged at the bottom of the frame body. The protective cover is fixedly installed on the upper end face of the frame. Wherein a hole is formed in the rear end of the top of the protective cover and communicates with a feeding groove, and a material injection pipe communicates with the top of the feeding groove; wherein the material injection pipe adopts a corrugated pipe structure design, and flanges are arranged at the upper end and the lower end of the material injection pipe; the limiting frames are fixedly installed at the front ends of the two sides in the frame body. A slag discharging plate is movably inserted in the frame body on the inner side of the limiting frame and is higher than the upper end face of the protective cover, and the bottom of the slag discharging plate makes contact with the upper surface of the first screen but is not fixedly connected with the upper surface of the first screen. The problems that in the prior art, when a device is used, dross is inconvenient to take out, and the surrounding dust raising amount is too large are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of foundry sand recovery, in particular to a foundry sand vibration recovery device. Background Art

[0002] Foundry sand is an important material used in the casting process, playing a key role. A significant advantage of this material is its ability to be recycled and reused, thus conserving resources and protecting the environment. Currently, a common method for recycling foundry sand is to use a vibrating recovery device, which effectively separates the slag from the sand, allowing it to be cleaned and reused. This method allows foundry sand to be recycled multiple times, reducing the need for new sand, lowering production costs, and lowering environmental impact.

[0003] After extensive searching, the publication number CN219324728U discloses a vibration recovery device for foundry sand. The device injects cooling water into the water tank and fills the cavity in the discharge hopper. The mold is clamped by a robotic arm and shaken in a sand shaking box. The fallen foundry sand slowly slides out of the discharge hopper, and the foundry sand in contact with the discharge hopper is cooled by the cooling water in the discharge hopper, avoiding direct water cooling, facilitating recovery, and improving recovery efficiency. The range of movement of the foundry sand is limited by the setting of the sand shaking box.

[0004] However, there may be slag such as iron filings that have seeped in during pouring in the foundry sand, and these slag cannot be broken up by vibration, resulting in residues in the vibrating screen during the vibration recovery operation. Existing devices have difficulty in discharging slag in such situations. At the same time, the feeding mechanism with an open structure design and the open vibrating material will generate a lot of dust, which will have a certain impact on the surrounding working environment. Therefore, a foundry sand vibration recovery device is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a foundry sand vibration recovery device, which has the advantages of conveniently removing residual slag in the vibration mechanism and reducing the surrounding dust during operation, and solves the problems of inconvenience in removing slag and excessive surrounding dust when the device is in use in the prior art.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a foundry sand vibration recovery device, comprising a frame, a first screen and a second screen fixedly mounted on the bottom inner side of the frame, a vibration motor provided on the bottom of the frame, and further comprising a limit frame and a protective cover;

[0007] The protective cover is fixedly installed on the upper end surface of the frame;

[0008] The rear end of the top of the protective cover is opened and connected to a feed trough, and the top of the feed trough is connected to a filling pipe.

[0009] The injection pipe adopts a bellows structure design, with flanges at both ends, and the top of the injection pipe is connected to the casting sand feed pipeline through the flange;

[0010] The limit frames are fixedly installed at the front ends of both sides of the frame;

[0011] A slag unloading plate is movably inserted in the frame body inside the limiting frame. The height of the slag unloading plate is higher than the height of the upper end surface of the protective cover. The bottom of the slag unloading plate contacts the upper surface of the first screen but is not fixedly connected.

[0012] Preferably, a discharge chute is fixedly mounted on the side of the frame's bottom opposite the vibration motor. Side panels are installed at the front and sides of the chute's upper end, with the tops of the side panels fixedly connected to the frame's bottom. The rear end of the chute passes through the rear end of the frame and bends downward at a 45-degree angle. The front end of the chute's lower surface forms a 5-degree acute angle with the frame's bottom. The design meticulously incorporates a discharge chute on the side of the frame's bottom opposite the vibration motor. The chute's upper end is reinforced with side panels not only at the front but also on both sides. The tops of these side panels are securely connected to the frame's bottom, ensuring structural stability and durability while providing a good seal. The rear end of the chute cleverly passes through the rear end of the frame and bends downward at a precise 45-degree angle. This design not only optimizes the material flow path but also reduces resistance during discharge. The front end of the chute's lower surface forms a carefully calculated 5-degree acute angle with the frame's bottom. This angle helps guide material discharge smoothly while minimizing dust and splashing.

[0013] Preferably, the first screen and the second screen are distributed in a stepped manner, the installation height of the first screen is lower than the installation height of the second screen, a support rod is fixedly installed at the front end of the bottom of the first screen, a support rod is fixedly installed at the rear end of the bottom of the second screen, a support rod is fixedly installed at the bottom of the second screen where the first screen and the second screen are connected, and a guide plate is fixedly installed at the front end of the first screen. In the design, the first screen and the second screen are distributed in a stepped manner to ensure that the material can slide on the screens at different heights to avoid material accumulation. The installation height of the first screen is slightly lower than that of the second screen, forming a natural material flow gradient. The clever layout of the support rods not only enhances the structural stability of the screen, but also guides the residual residue to be discharged smoothly through the design of the guide plate. The advantage of this design is that it provides a more efficient material grading method, reduces the mixing of materials, and improves screening efficiency.

[0014] Preferably, the ends of the three support rods are welded to the inner sides of the frame, and all three support rods are designed as square tube structures. In this design, the three support rods are designed as sturdy square tube structures and welded to the inner sides of the frame, ensuring the stability and durability of the screen structure. The advantages of this structural design are that it provides a higher load-bearing capacity and a longer service life, while also facilitating the installation and maintenance of the screen.

[0015] Preferably, the vibration motor is fixedly mounted on the inside of a mounting bracket, with the top of the mounting bracket fixedly connected to the frame. A base frame is provided on the outside of the mounting bracket at the bottom of the frame. This design secures the vibration motor via the mounting bracket, ensuring its stability during operation and reducing direct impact on the frame. The mounting bracket design allows for a fixed connection between the vibration motor and the top of the frame while maintaining the independence of the base frame. This design has the advantage of isolating the vibration source, reducing the impact of vibration on the overall structure, and improving the stability and service life of the device.

[0016] Preferably, lower support frames are fixedly mounted at the four corners of the upper end face of the base frame. Connecting springs are movably mounted on the top of the lower support frames, and upper support frames are movably mounted on top of the connecting springs. The upper support frames are fixedly mounted at the four corners of the base frame's bottom. In this design, the lower support frames at the four corners of the base frame's upper end face are connected to the upper support frames via connecting springs, forming a flexible shock-absorbing system. The upper support frame is fixed to the bottom of the frame, ensuring the stability of the entire structure. The advantage of this design is that the shock-absorbing system effectively absorbs and isolates vibrations, reducing the impact on the surrounding environment while also protecting the equipment from damage caused by excessive vibration.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] In this utility model, the protective cover is fixed to the upper end surface of the frame, forming a closed upper structure. This design not only protects the internal components of the equipment from external interference, but also helps control dust and prevent dust from spreading into the surrounding environment during operation. The opening at the rear end of the top of the protective cover allows the feed chute to be connected to the injection pipe. This design simplifies the feeding process. The bellows structure of the injection pipe provides flexibility, facilitating installation and maintenance, and also helps reduce dust during feeding. Flanges are provided at both ends of the injection pipe for quick connection and removal from the foundry sand feed line. This design simplifies the operation of the equipment and facilitates cleaning or replacement of the injection pipe when necessary. The limiter brackets are fixed to the front end of each side of the frame, providing stable support for the slag plate. The slag plate can be flexibly inserted into the inner side of the limiter bracket, allowing the operator to easily remove the slag plate to clean residual slag on the screen, thereby facilitating the removal of residual slag from the vibrating mechanism and reducing dust during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 3 For the utility model Figure 2 Schematic diagram of the structure at the enlarged part;

[0022] Figure 4 This is a schematic diagram of the chassis structure of the present utility model.

[0023] In the figure: 1. slag unloading plate; 2. limit frame; 3. protective cover; 4. injection pipe; 5. feed trough; 6. discharge trough; 7. frame; 8. base frame; 9. vibration motor; 10. mounting frame; 11. first screen; 12. second screen; 13. support rod; 14. connecting spring; 15. upper support frame; 16. lower support frame; 17. guide plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1

[0026] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the utility model provides an embodiment: a foundry sand vibration recovery device, including a frame 7, a first screen 11 and a second screen 12 are fixedly installed on the bottom inner side of the frame 7, a vibration motor 9 is provided at the bottom of the frame 7, and further includes a limit frame 2 and a protective cover 3;

[0027] Specifically, the protective cover 3 is fixed to the upper end surface of the frame 7, forming a closed upper structure. This design not only protects the internal components of the equipment from external interference but also helps control dust, preventing dust from dispersing into the surrounding environment during operation. The opening at the top and rear end of the protective cover 3 allows the feed chute 5 to be connected to the injection pipe 4. This design simplifies the feeding process. The bellows structure of the injection pipe 4 provides flexibility, facilitating installation and maintenance, and also helps reduce dust during feeding. The injection pipe 4 is equipped with flanges at both ends for quick connection and disconnection with the foundry sand feed line. This design simplifies the equipment's operation and facilitates cleaning or replacement of the injection pipe 4 when necessary. The limiter 2 is fixed to the front end of both sides of the frame 7, providing stable support for the slag plate 1. The slag plate 1 can be flexibly inserted inside the limiter 2. This design allows the operator to easily remove the slag plate 1 to clean residual slag on the screen, facilitating the removal of residual slag from the vibrating mechanism and reducing dust during operation.

[0028] Example 2

[0029] In order to improve the fluidity of the material during screening, the screening structure is reinforced, such as Figure 2 and Figure 3 As shown, in this embodiment, a discharge chute 6 is fixedly installed on the side of the bottom of the frame 7 opposite to the vibration motor 9. The front end and both sides of the upper end surface of the discharge chute 6 are provided with side panels, and the top of the side panels is fixedly connected to the bottom of the frame 7. The rear end of the discharge chute 6 passes through the rear end of the frame 7 and is bent downward at forty-five degrees. The front end of the lower surface of the discharge chute 6 forms an acute angle of five degrees with the bottom of the frame 7. In the design, a discharge chute 6 is carefully designed on the side of the bottom of the frame 7 corresponding to the vibration motor 9. The upper end surface of the discharge chute 6 is reinforced with side panels not only at the front end but also on both sides. The tops of these side panels are firmly connected to the bottom of the frame 7, ensuring the structural stability and durability of the discharge chute 6 and providing better sealing. The rear end of the discharge chute 6 cleverly passes through the rear end of the frame 7 and is bent downward at a precise forty-five-degree angle. This design not only optimizes the flow trajectory of the material, but also reduces the resistance when the material is discharged. The front end of the lower surface of the discharge chute 6 forms a carefully calculated five-degree acute angle with the bottom of the frame 7. The setting of this angle helps to guide the material to be discharged smoothly while minimizing dust and splashing.

[0030] Preferably, the first screen 11 and the second screen 12 are distributed in a stepped manner, the installation height of the first screen 11 is lower than the installation height of the second screen 12, a support rod 13 is fixedly installed at the front end of the bottom of the first screen 11, a support rod 13 is fixedly installed at the rear end of the bottom of the second screen 12, a support rod 13 is fixedly installed at the bottom of the second screen 12 at the connection between the first screen 11 and the second screen 12, and a guide plate 17 is fixedly installed at the front end of the first screen 11. In the design, the first screen 11 and the second screen 12 are distributed in a stepped manner to ensure that the material can slide on the screens at different heights to avoid material accumulation. The installation height of the first screen 11 is slightly lower than that of the second screen 12, forming a natural material flow gradient. The ingenious layout of the support rod 13 not only enhances the structural stability of the screen, but also guides the residual residue to be discharged smoothly through the design of the guide plate 17. The advantage of this design is that it provides a more efficient material grading method, reduces material mixing, and improves screening efficiency.

[0031] Preferably, the ends of the three support rods 13 are welded to the inner sides of the frame 7, and all three support rods 13 are designed as square tube structures. In this design, the three support rods 13 are all designed as sturdy square tube structures and welded to the inner sides of the frame 7, ensuring the stability and durability of the screen structure. The advantages of this structural design are that it provides a higher load-bearing capacity and a longer service life, while also facilitating the installation and maintenance of the screen.

[0032] Example 3

[0033] In order to ensure the stability of the overall structure of the device and reduce the large displacement of the equipment installation position caused by vibration, such as Figure 2 and Figure 4 As shown, in this embodiment, the vibration motor 9 is fixedly mounted on the inside of the mounting bracket 10. The top of the mounting bracket 10 is fixedly connected to the frame 7, and the bottom of the frame 7 outside the mounting bracket 10 is provided with a base frame 8. In the design, the vibration motor 9 is fixed by the mounting bracket 10, ensuring its stability during operation and reducing direct impact on the frame 7. The design of the mounting bracket 10 allows the vibration motor 9 to be fixedly connected to the top of the frame 7 while maintaining the independence of the base frame 8. The advantage of this design is that by isolating the vibration source, the vibration impact on the overall structure is reduced, thereby improving the stability and service life of the equipment.

[0034] Preferably, lower support frames 16 are fixedly installed at the four corners of the upper end surface of the base frame 8, and a connecting spring 14 is movably mounted on the top of the lower support frame 16. An upper support frame 15 is movably inserted on the top of the connecting spring 14, and the upper support frame 15 is fixedly installed at the four corners of the bottom of the frame body 7. In the design, the lower support frames 16 at the four corners of the upper end surface of the base frame 8 are connected to the upper support frame 15 through the connecting spring 14, forming a flexible shock absorption system. The upper support frame 15 is fixed to the bottom of the frame body 7 to ensure the stability of the entire structure. The advantage of this design is that the shock absorption system effectively absorbs and isolates vibrations, reduces the impact on the surrounding environment, and also protects the equipment from damage caused by excessive vibration.

[0035] When the present invention is used, ensure that all components of the vibration recovery device have been correctly installed, connect the top of the injection pipe 4 to the casting sand feed pipeline through a flange, ensure that the bellows structure of the injection pipe 4 can flexibly transport casting sand, add the casting sand raw material into the vibration recovery device through the feed trough 5, start the vibration motor 9 at the bottom of the frame 7, and through the vibration generated by the vibration motor 9, the casting sand is dispersed and screened in the frame 7 using the first screen 11 and the second screen 12, and the screened casting sand is discharged through the discharge trough 6. The rear end of the discharge chute 6 passes through the rear end of the frame 7 and bends downward to form an inclined angle to facilitate smooth discharge of materials, and the front end of the lower surface of the discharge chute 6 forms an acute angle with the bottom of the frame 7 to optimize the discharge effect. After screening is completed, the vibration motor 9 is turned off to stop vibration. At this time, the movable unloading plate 1 is pulled upward to remove impurities or unnecessary particles after screening. At the same time, the height of the unloading plate 1 is higher than the upper end surface of the protective cover 3, and the bottom is in contact with the first screen 11 but not fixedly connected, thereby providing a better sealing effect when in use.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A foundry sand vibration recovery device, comprising a frame (7), a first screen (11) and a second screen (12) fixedly mounted on the inner bottom of the frame (7), and a vibration motor (9) provided at the bottom of the frame (7), characterized in that: Also includes: A protective cover (3) is fixedly mounted on the upper end surface of the frame (7); The top rear end of the protective cover (3) is opened and connected to a feed trough (5), and the top of the feed trough (5) is connected to a material injection pipe (4). The injection pipe (4) is designed as a bellows structure, and flanges are provided at both the upper and lower ends of the injection pipe (4). The top of the injection pipe (4) is connected to the casting sand feed pipeline through the flange. A limit frame (2) is fixedly mounted on the front ends of both sides of the frame body (7); A slag unloading plate (1) is movably inserted into the frame body (7) inside the limiting frame (2). The height of the slag unloading plate (1) is higher than the height of the upper end surface of the protective cover (3). The bottom of the slag unloading plate (1) contacts the upper surface of the first screen (11) but is not fixedly connected.

2. A foundry sand vibration recovery device according to claim 1, characterized in that: A discharge trough (6) is fixedly installed on the side opposite to the vibration motor (9) at the bottom of the frame (7), and side panels are provided at the front end and both sides of the upper end surface of the discharge trough (6), and the top of the side panel is fixedly connected to the bottom of the frame (7). The rear end of the discharge trough (6) passes through the rear end of the frame (7) and is bent downward at forty-five degrees. The front end of the lower surface of the discharge trough (6) forms an acute angle of five degrees with the bottom of the frame (7).

3. The foundry sand vibration recovery device according to claim 1, characterized in that: The first screen (11) and the second screen (12) are arranged in a stepped manner. The installation height of the first screen (11) is lower than the installation height of the second screen (12). A support rod (13) is fixedly installed at the front end of the bottom of the first screen (11), and a support rod (13) is fixedly installed at the rear end of the bottom of the second screen (12). A support rod (13) is fixedly installed at the bottom of the second screen (12) at the connection between the first screen (11) and the second screen (12), and a guide plate (17) is fixedly installed at the front end of the first screen (11).

4. A foundry sand vibration recovery device according to claim 3, characterized in that: The two ends of the three support rods (13) are respectively welded and installed to the two sides inside the frame (7), and the three support rods (13) are all designed with a square tube structure.

5. The foundry sand vibration recovery device according to claim 1, characterized in that: The vibration motor (9) is fixedly mounted on the inner side of the mounting frame (10), the top of the mounting frame (10) is fixedly connected to the frame body (7), and a base frame (8) is provided at the bottom of the frame body (7) outside the mounting frame (10).

6. The foundry sand vibration recovery device according to claim 5, characterized in that: The bottom frame (8) is fixedly mounted with lower support frames (16) at the four corners of the upper end surface, the top of the lower support frame (16) is movably sleeved with a connecting spring (14), the top of the connecting spring (14) is movably inserted with an upper support frame (15), and the upper support frame (15) is fixedly mounted at the four corners of the bottom of the frame body (7).

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