Casting used sand recovery processing device

By designing a foundry sand recycling and processing device, and utilizing structures such as crushing teeth, screening plates, and an outer rotating disc, the problem of difficulty in completely refining foundry sand after it clumps has been solved, achieving efficient refining and recycling of foundry sand and reducing workload.

CN223997249UActive Publication Date: 2026-03-17SU ZHOU HUA YU JING MI ZHU ZAO YOU XIAN GONG SI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

The existing foundry sand, once it clumps, cannot be completely refined by crushing alone, which requires multiple screenings and increases the workload.

Method used

A foundry waste sand recycling and processing device was designed, including a feeding component, a crushing component, a screening component, and a refining component. Through structures such as crushing teeth, screening plates, and an outer rotating disc, the device achieves preliminary crushing, screening, and further refining of foundry sand, thereby improving the refining efficiency.

Benefits of technology

It achieves efficient refinement and recycling of foundry sand, reduces the workload of multiple screenings, and improves work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an old casting sand recovery processing device, and relates to the technical field of casting sand recovery. The feeding assembly is installed at the top position of the smashing assembly, the screening assembly is installed at the bottom of the smashing assembly through a connecting frame, the refining assemblies are installed at the two ends of the screening assembly, and a conveying belt of the feeding assembly directly conveys casting sand into the feeding assembly; the feeding assembly guarantees that casting sand enters the screening assembly to be smashed for the first time, the size of the casting sand is reduced, at the moment, the more refined casting sand is preliminarily screened and separated through the screening assembly, the remaining casting sand is injected into the refining assembly through the screening assembly, the refining assembly is further refined, and the casting sand is collected and discharged from the collecting assembly at the bottom of the refining assembly. And the problems that complete refining of the foundry sand cannot be guaranteed through independent crushing, secondary screening is needed, multiple repeated refining is needed, and the workload is increased are solved.
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Description

Technical Field

[0001] This utility model relates to the field of foundry sand recycling technology, and in particular to a device for recycling and processing used foundry sand. Background Technology

[0002] With the continuous development of technology, the demand for various large mechanical parts and accessories is increasing. Larger mechanical parts are mostly produced using casting methods. Casting sand is used in the casting process; it is the main material for forming the mold. By compacting it, a cavity corresponding to the shape of the casting can be formed. After the molten metal is poured into the cavity, it cools and solidifies to obtain the desired shape and size of the casting. Whether it is a simple block casting or a complex casting with various internal cavities, protrusions, grooves, etc., the precise molding of the corresponding cavity by casting sand is essential for its realization.

[0003] During the casting process, the foundry sand used may clump. In addition, some special manufacturing processes may also cause the foundry sand profiles to clump hard. Since foundry sand is usually reusable, it needs to be refined again before use. However, the existing clumped foundry sand cannot be completely refined by simply crushing it. It needs to be screened a second time and refined multiple times, which increases the workload. Utility Model Content

[0004] This disclosure relates to a foundry sand recycling and processing device. The conveyor belt of the feeding component directly transports the foundry sand into the feeding component. The feeding component ensures that the foundry sand enters the screening component for initial crushing, reducing the volume of the foundry sand. At this time, the finer foundry sand is initially screened and separated by the screening component. The remaining foundry sand is injected into the refining component through the screening component for further refining. The sand is then collected and discharged from the collection component at the bottom of the refining component, completing the recycling process.

[0005] In a first aspect, this disclosure provides a foundry waste sand recycling and processing device, specifically comprising: a crushing component; a feeding component installed at the top of the crushing component, a screening component installed at the bottom of the crushing component via a connecting frame, a refining component installed at both ends of the screening component, the refining component being fixedly installed via the connecting frame, a collecting component provided at the bottom of the refining component, the bottom of the screening component being placed on the collecting component, and a vibration box provided on the outer end face of both the screening component and the collecting component.

[0006] In at least some embodiments, the crushing assembly has a crushing component installed inside the crushing chamber. The crushing teeth of the crushing component are configured as an elongated structure, and the inner end face of the crushing teeth is provided with anti-slip teeth, which are configured as a raised triangular block structure.

[0007] In at least some embodiments, the guide frame of the feeding assembly is installed at the upper end of the crushing assembly. The guide frame is configured as a funnel-shaped structure, and a shield is installed on the top of the guide frame. A conveyor belt is installed at the opening of the shield.

[0008] In at least some embodiments, the screening frame of the screening component is installed at the bottom of the crushing component via a connecting frame, the top of the screening frame is equipped with a screening plate that is symmetrically inclined to the outward end at both ends, a guide bottom plate is installed on the screening frame at the bottom of the screening plate, and a vertical feed cylinder is provided at the middle position of the guide bottom of the screening frame.

[0009] In at least some embodiments, the refining box of the refining component is connected and installed on the outer sides of both ends of the screening component via a connecting frame. A receiving frame is installed on the inner end face of the refining box. The receiving frame is configured as a funnel-shaped structure and corresponds to the screening component. An outer turntable is hinged at the outer end of the refining box. The outer turntable itself is rotatably installed. Refining blocks are installed inside the refining box and on the outer turntable. Guide plates are provided in the middle and along the edge of the outer turntable. The guide plates are configured as arc-shaped structures.

[0010] In at least some embodiments, the bottom support of the collecting component is located at the bottom of the refining component, a collecting frame is slidably mounted on the bottom support, the collecting frames of the two sets of bottom supports are connected to each other in the middle, and the collecting frame as a whole is in an inclined state, and a discharge belt is provided at the middle of the bottom of the collecting frame.

[0011] This utility model provides a device for recycling and processing waste foundry sand, which has the following beneficial effects:

[0012] In this invention, the conveyor belt of the feeding component first transports the foundry sand to the feeding component. The feeding component as a whole can shield the foundry sand, allowing it to be better collected and fed into the crushing component. The crushing component has a large crushing tooth structure, which can better crush the blocky foundry sand. Subsequently, the bottom of the crushing component is evenly divided into two ends for discharge. The screening component reinforces and collects the discharged foundry sand. The screening component can perform initial screening of the foundry sand, collecting the already refined foundry sand at the bottom, while the remaining larger pieces of foundry sand are introduced into the refining component. The refining component further refines the foundry sand. The structure within the refining component has better dispersion, making the foundry sand refining process faster. Finally, the bottom of the refining component discharges the refined foundry sand onto the collecting component, allowing the collecting component to collect and recover the foundry sand.

[0013] In addition, when the foundry sand is discharged into the crushing box, the crushing component of the crushing box can crush the foundry sand. The crushing teeth of the crushing component are designed with an elongated structure, which allows the crushing teeth to better clamp and crush the foundry sand. Anti-slip teeth are set on the crushing teeth, and the triangular anti-slip teeth have a stable clamping and crushing effect on the foundry sand through the crushing teeth. First, the conveyor belt runs to transport the foundry sand to the guide frame. The guide frame has a funnel-shaped structure to allow the foundry sand to enter better. A shield is installed on the top of the guide frame, which has the function of shielding the foundry sand and preventing the foundry sand from being tilted and leaking out.

[0014] In addition, the bottom of the crushing component first discharges the crushed foundry sand, and the bottom of the crushing component crushes the foundry sand into two groups for further accelerated processing. The two symmetrical screening plates at the top of the screening rack can simultaneously guide and screen the foundry sand after it falls, so that the finer foundry sand falls and falls into the collection component through the feed cylinder in the middle position, while the still larger foundry sand is discharged into the finer components at both ends through the inclined screening plates.

[0015] Furthermore, the refining components are directly set as two symmetrical sets, which firstly increases the refining efficiency of the casting sand. The receiving rack on the inner side of the refining box corresponds directly to the screening component, allowing the casting sand discharged from the screening component to achieve a more stable receiving function. After the casting sand is injected into the refining box through the receiving rack, the outer turntable is in a closed state. The outer turntable is driven from the outside to rotate and refine the sand inside the refining box. When the refining box and the refining blocks of the outer turntable rotate, the refining blocks intersect each other, achieving better refining of the casting sand. The guide plate of the outer turntable has an inclined shape, which allows the refined casting sand to be drawn outward and dispersed, allowing the refining components to stably and quickly refine and discharge the casting sand.

[0016] In addition, a bottom support is installed at the bottom of the refining component, so that the casting sand crushed by the refining component can be discharged through the bottom support. A collection rack is slidably installed on the bottom support. The inclined shape of the collection rack allows the casting sand to be collected and discharged towards the center, so that the discharge belt in the middle of the bottom can achieve better conveying function. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0018] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0019] In the attached diagram:

[0020] Figure 1A schematic diagram of the overall structure of this application is shown;

[0021] Figure 2 A schematic diagram of the feeding assembly structure of this application is shown;

[0022] Figure 3 A schematic diagram of the detailed component structure of this application is shown;

[0023] Figure 4 A schematic diagram of the detailed box and collection component structure of this application is shown;

[0024] Figure 5 A schematic diagram of the screening component structure of this application is shown;

[0025] Figure 6 A schematic diagram of the pulverizing teeth and anti-slip teeth structure of this application is shown;

[0026] List of reference numerals

[0027] 1. Crushing assembly; 101. Crushing box; 102. Crushing teeth; 103. Anti-slip teeth;

[0028] 2. Feeding assembly; 201. Guide frame; 202. Shielding cover; 203. Conveyor belt;

[0029] 3. Screening components; 301. Screening rack; 302. Screening plate; 303. Feeding cylinder;

[0030] 4. Refinement components; 401. Refinement box; 402. Refinement block; 403. Outer turntable; 404. Guide plate; 405. Receiving rack;

[0031] 5. Collection components; 501. Base support; 502. Collection rack; 503. Discharge belt;

[0032] 6. Connecting frame;

[0033] 7. Vibration chamber. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0035] Example 1: Please refer to Figures 1 to 6 :

[0036] This utility model proposes a device for recycling and processing foundry waste sand, including: a crushing component 1; a feeding component 2 is installed at the top of the crushing component 1, a screening component 3 is installed at the bottom of the crushing component 1 through a connecting frame 6, a refining component 4 is installed at both ends of the screening component 3, the refining component 4 is fixedly installed through the connecting frame 6, a collecting component 5 is provided at the bottom of the refining component 4, the bottom of the screening component 3 is placed on the collecting component 5, and a vibration box 7 is provided on the outer end face of both the screening component 3 and the collecting component 5.

[0037] In this embodiment of the disclosure, such as Figure 2 Figure 6 As shown, a crushing component is installed inside the crushing box 101 of the crushing assembly 1. The crushing teeth 102 of the crushing component are configured with an elongated structure, and anti-slip teeth 103 are provided on the inner end face of the crushing teeth 102. The anti-slip teeth 103 are configured with a raised triangular block structure. When the casting sand is discharged into the crushing box 101, the crushing component of the crushing box 101 can crush the casting sand. The elongated structure of the crushing teeth 102 allows the crushing teeth 102 to better clamp and crush the casting sand. The anti-slip teeth 103 on the crushing teeth 102 form a triangular anti-slip tooth 103, which has a stable clamping and crushing effect on the casting sand through the anti-slip teeth 103 at the crushing teeth 102.

[0038] In this embodiment of the disclosure, such as Figure 1 Figure 2 As shown, the guide frame 201 of the feeding component 2 is installed at the upper end of the crushing component 1. The guide frame 201 is configured as a funnel-shaped structure. A shield 202 is installed on the top of the guide frame 201. A conveyor belt 203 is installed at the opening of the shield 202. First, the conveyor belt 203 runs to transport the casting sand to the guide frame 201. The funnel-shaped structure of the guide frame 201 allows the casting sand to enter better. The shield 202 installed on the top of the guide frame 201 helps to shield the casting sand and prevent the casting sand from being skewed and leaking out.

[0039] In this embodiment of the disclosure, such as Figure 4 Figure 5As shown, the screening frame 301 of the screening component 3 is installed at the bottom of the crushing component 1 via the connecting frame 6. The top of the screening frame 301 is equipped with screening plates 302 that are symmetrically inclined towards the outward ends at both ends. A guide plate is installed on the screening frame 301 at the bottom of the screening plate 302. A vertical feed cylinder 303 is set in the middle of the guide bottom of the screening frame 301. First, the bottom of the crushing component 1 will discharge the crushed casting sand. The bottom of the crushing component 1 will crush the casting sand into two sets for further acceleration. The two symmetrical screening plates 302 at the top of the screening frame 301 can simultaneously guide and screen the casting sand after receiving it. This allows the refined casting sand to fall and enter the collection component 5 through the feed cylinder 303 in the middle position. The larger casting sand is discharged into the two-end refinement components 4 through the inclined screening plates 302.

[0040] In this embodiment of the disclosure, such as Figure 3 Figure 4 As shown, the refining box 401 of the refining component 4 is connected and installed on the outer sides of both ends of the screening component 3 via the connecting frame 6. A receiving frame 405 is installed on the inner end face of the refining box 401. The receiving frame 405 is configured as a funnel-shaped structure, corresponding to the screening component 3. This directly sets the refining component 4 into two symmetrical sets, increasing the refining efficiency of the casting sand. The receiving frame 405 on the inner side of the refining box 401 directly corresponds to the screening component 3, allowing for better stable reception of the casting sand discharged from the screening component 3. An outer turntable 403 is hinged at the outer end of the refining box 401. The outer turntable 403 itself is rotatable. The interior and exterior of the refining box 401 are connected... Each turntable 403 is equipped with a refining block 402. The outer turntable 403 has guide plates 404 in the middle and along its edges. The guide plates 404 are arc-shaped. After the casting sand is injected into the refining box 401 through the receiving frame 405, the outer turntable 403 is in a closed state. The outer turntable 403 is driven from the outside to rotate and refine the sand in the refining box 401. When the refining box 401 and the refining blocks 402 of the outer turntable 403 rotate, the refining blocks 402 intersect each other to achieve better refining of the casting sand. The guide plates 404 of the outer turntable 403 have an inclined shape to draw the refined casting sand outward and disperse it, allowing the refining component 4 to stably and quickly refine and discharge the casting sand.

[0041] In this embodiment of the disclosure, such as Figure 3 Figure 4As shown, the bottom support 501 of the collecting component 5 is located at the bottom of the refining component 4. A collecting frame 502 is slidably installed on the bottom support 501. The collecting frames 502 of the two sets of bottom supports 501 are connected to each other in the middle. The collecting frame 502 is in an inclined state. A discharge belt 503 is provided at the middle of the bottom of the collecting frame 502. The bottom of the refining component 4 is set with the bottom support 501 so that the casting sand after being crushed by the refining component 4 can be discharged through the bottom support 501. The collecting frame 502 is slidably installed on the bottom support 501. The inclined shape of the collecting frame 502 allows it to collect the casting sand and discharge it towards the middle, so that the discharge belt 503 at the bottom can achieve a better conveying function.

[0042] The working principle of this embodiment is as follows: During use, the conveyor belt 203 transports the agglomerated foundry sand directly to the feeding component 2, which is installed on the crushing component 1. The feeding component 2 collects and introduces the foundry sand. After the crushing component 1 crushes the foundry sand, the screening component 3 at the bottom of the crushing component 1 can screen the foundry sand. The bottom of the screening component 3 is discharged onto the collection component 5. The two ends of the screening component 3 transport small pieces of foundry sand to the refining component 4. The refining component 4 further refines the small pieces of foundry sand. The bottom of the refining component 4 discharges the refined foundry sand onto the collection component 5. Finally, the discharge belt 503 discharges the refined and recovered foundry sand.

[0043] The following points should be noted in this article:

[0044] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.

[0045] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0046] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A foundry sand reclamation apparatus comprising: The utility model provides a kind of old sand recycling device for casting, it is characterized in that, the top position of the crushing assembly (1) is equipped with feeding assembly (2), characterized in that, the bottom of the crushing assembly (1) is equipped with screening assembly (3) by connecting frame (6), both ends position of screening assembly (3) is equipped with refining assembly (4), refining assembly (4) is fixedly installed by connecting frame (6), the bottom of refining assembly (4) is provided with collection assembly (5), screening assembly (3) is placed on collection assembly (5), and the outer end surface of screening assembly (3) and collection assembly (5) is provided with vibration box (7).

2. The old sand recycling device for casting according to claim 1, wherein The crushing assembly (1) is provided with a crushing part in the crushing box (101), the crushing teeth (102) of the crushing part are provided in an elongated structure, and the inner end surface of the crushing teeth (102) is provided with anti-skid teeth (103) in a protruding triangular block structure.

3. The old sand recycling device for casting according to claim 1, wherein The guiding frame (201) of the feeding assembly (2) is installed at the upper end of the crushing assembly (1) and is provided in a funnel structure, the top of the guiding frame (201) is provided with a shielding cover (202), and the opening of the shielding cover (202) is provided with a conveying belt (203).

4. The old sand recycling device for casting according to claim 1, wherein The screening frame (301) of the screening assembly (3) is installed at the bottom of the crushing assembly (1) by the connecting frame (6), the top of the screening frame (301) is provided with two screening plates (302) symmetrically inclined towards the outer end, the bottom of the screening plate (302) is provided with a guiding bottom plate on the screening frame (301), and the middle of the guiding bottom of the screening frame (301) is provided with a vertical discharging cylinder (303).

5. The old sand recycling device for casting according to claim 1, wherein The refining box (401) of the refining assembly (4) is connected and installed at the outer side of both ends of the screening assembly (3) by the connecting frame (6), the inner end surface of the refining box (401) is provided with a receiving frame (405) in a funnel structure, and the receiving frame (405) corresponds to the screening assembly (3).

6. The old sand recycling device for casting according to claim 5, wherein The outer rotary disc (403) is hingedly installed at the outer end of the refining box (401), the outer rotary disc (403) is rotatably installed, the refining block (402) is installed on the inner end surface of the refining box (401) and the outer rotary disc (403), the middle and the edge of the outer rotary disc (403) are provided with guiding fins (404) in an arc structure.

7. The old sand recycling device for casting according to claim 1, wherein The bottom support (501) of the collecting assembly (5) is arranged at the bottom position of the refining assembly (4), the collecting frame (502) is slidingly installed on the bottom support (501), the collecting frames (502) of the two groups of bottom supports (501) are connected to each other in the middle, and the collecting frames (502) are in an inclined state as a whole, and the discharging belt (503) is arranged at the middle of the bottom of the collecting frame (502).