Deformed sand box supporting and restoring device

By designing a deformable sand box recovery device, the sand box frame is restored and unloaded using components such as support blocks and hydraulic cylinders. This solves the problem of sand boxes being unusable due to deformation, and improves the degree of restoration and ease of operation.

CN224143223UActive Publication Date: 2026-04-21DALIAN FANGRUI PUMP IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DALIAN FANGRUI PUMP IND CO LTD
Filing Date
2025-05-27
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

During the casting process, the sand box may deform after pouring, resulting in an inward concavity, reduced internal space, and inability to be reused, thus increasing costs.

Method used

Design a deformable sand box re-support and restoration device, including a main frame, a prevention frame, a re-support and restoration mechanism and a material handling mechanism, which realizes the restoration and unloading of the sand box frame through components such as support blocks, hydraulic cylinders and extrusion seats.

Benefits of technology

It enables rapid restoration and reuse of the sandbox frame, improves the degree of restoration and ease of operation, and reduces replacement costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a deformed sand box back support recovery device, which relates to the technical field of sand box recovery and comprises a main body frame, a mounting plate is fixedly mounted at the top end of the main body frame, a prevention frame is fixedly mounted on the upper surface of the mounting plate, and a sand box frame is placed in the prevention frame. And a back supporting and restoring mechanism is installed in the prevention frame and used for supporting and restoring the sand box frame, and a material taking mechanism used for discharging the sand box frame is fixedly installed at the top end of the main body frame. According to the utility model, the supporting and resetting of the sand box frame can be quickly completed through the arrangement of the back-supporting and resetting mechanism, the sand box frame can be conveniently and repeatedly utilized, the sand box frame is kept stable in the resetting process through multi-point uniform extrusion, the stress uniformity of the sand box frame is improved, the resetting effect of the sand box frame is further improved, and the production efficiency is improved. Therefore, the sand box frame can be reused subsequently.
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Description

Technical Field

[0001] This utility model relates to the field of sand box restoration technology, specifically to a deformed sand box re-support and restoration device. Background Technology

[0002] A casting sand box is a core tool in the casting process used to fix the sand mold and form the cavity of the casting. It is usually made of high-temperature resistant and high-strength materials (such as metal, wood or resin) and is widely used in metal casting processes such as cast iron, cast aluminum, and cast steel. It is a key tooling to ensure the dimensional accuracy and surface quality of castings. Through the clamping fit between the upper and lower sand boxes, it ensures that the sand mold remains stable when pouring molten metal, preventing collapse or deformation. Together with the sand mold, it forms the shape and internal structure of the casting (such as holes and grooves), resists the static pressure and impact of high-temperature molten metal, and avoids sand mold cracking or bulging (sand mold expansion).

[0003] After casting, during the process of removing molding sand and taking out the casting, it is generally necessary to separate the sand box, casting, and molding sand through vibration and hammering. This process can cause significant inward deformation of the sand box. If the deformation is too large, the internal space is reduced, making it unusable and increasing costs. Therefore, to address the above problems, a new deformed sand box re-support and restoration device is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a deformable sand box re-support and restoration device to solve the problem in the background art where the sand box is deformed inward, resulting in a reduction of internal space and the inability to be reused.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A deformable sand box reversal and restoration device includes: a main frame, an installation plate fixedly installed at the top of the main frame, a prevention frame fixedly installed on the upper surface of the installation plate, a sand box frame placed inside the prevention frame, a reversal and restoration mechanism installed inside the prevention frame for supporting and restoring the sand box frame, and a material-retrieving mechanism for unloading the sand box frame fixedly installed at the top of the main frame; the reversal and restoration mechanism includes a material-retrieving mechanism fixedly installed inside the prevention frame, with installation frames fixedly installed at each of the four corners of the material-retrieving mechanism, and support blocks slidably connected to each installation frame.

[0007] Using the above technical solution, when the device is in use, the staff places the sand box frame to be restored inside the protective frame. Then, the back support and restoration mechanism starts to work, supporting and restoring the deformed sand box frame. After the sand box frame is restored, the material removal mechanism begins to descend and removes the restored sand box frame from inside the protective frame, making it convenient for the staff to replace it. This allows the restored sand box frame to be reused.

[0008] A further improvement of this utility model is that the end of the support block is set at a right angle.

[0009] By adopting the above technical solution, the right-angled support blocks can support and restore the sand box frame, thereby improving the restoreability of the sand box frame.

[0010] A further improvement of the present invention is that the back-supporting and restoring mechanism further includes a swing arm rotatably connected to one end of the support block. The end of the swing arm away from the support block is rotatably connected to one end of the extrusion seat. The extrusion seat is slidably connected to the limiting frame, and the limiting frame is fixedly installed inside the mounting frame. A top block is slidably connected to the center of the bottom end of the mounting frame, and the top block is extruded and engaged with the end of the extrusion seat. A hydraulic cylinder is fixedly installed on the lower surface of the mounting plate, and the output end of the hydraulic cylinder passes through the side wall of the mounting plate and is fixedly connected to the lower surface of the top block.

[0011] Using the above technical solution, when the sand box frame needs to be restored, the workers place the sand box frame inside the support frame. Then, the hydraulic cylinder drives the top block to push upward. As the top block pushes upward, it squeezes the two extrusion seats to both ends. As the extrusion seats move, they work with the swing arm to push the support block. As the support block moves, it squeezes and supports the sand box frame, thus restoring the structure of the sand box frame and making it easy to reuse.

[0012] A further improvement of the present invention is that: a fixing frame is symmetrically fixedly installed inside the mounting frame, the ends of the two fixing frames are respectively fixedly connected to the ends of the elastic sheet, and one side of the elastic sheet is fixedly connected to one end of the compression seat, and the elastic sheet is C-shaped.

[0013] By adopting the above technical solution, the elastic plate can reset the compression seat when the top block does not compress it, and the fixed frame can fix the elastic plate in place, increasing the installation stability of the device.

[0014] A further improvement of this utility model is that the extrusion seat is U-shaped and a reinforcing plate is fixedly installed inside the extrusion seat.

[0015] By adopting the above technical solution, the reinforcement plate can increase the structural strength of the extrusion seat and further increase the operational stability of the device.

[0016] A further improvement of this utility model is that: the material handling mechanism includes a cylinder fixedly installed at the top of the main frame, a lifting plate fixedly installed at the top of the cylinder, sliding rods slidably connected to both ends of the lifting plate, and one end of each sliding rod passing through the side wall of the lifting plate and fixedly connected to the top of the main frame; connecting rods fixedly installed at both ends of the lifting plate, and mounting bases fixedly installed at one end of each connecting rod passing through the side wall of the main frame; a limiting spring installed inside the mounting base, and pressing blocks installed at both ends of the limiting spring, with the pressing blocks slidably connected to the mounting base.

[0017] Using the above technical solution, when it is necessary to remove material from the sand box frame, the cylinder drives the lifting plate and connecting rod to move downwards. As the connecting rod moves downwards, the extrusion block will press against the end of the sand box frame, compressing the limiting spring. The extrusion block enters the interior of the mounting base, which continues to descend. As the mounting base descends, the extrusion block is no longer compressed and resets under the elastic force of the limiting spring. The extrusion block restricts the end of the sand box frame. Subsequently, the cylinder drives the connecting rod to reset again, removing the sand box frame from inside the frame for easy reuse.

[0018] A further improvement of this utility model is that the end of the extrusion block is provided with an inclined surface that is extruded and fitted with the end of the sand box frame.

[0019] By adopting the above technical solution, the inclined surface at the end of the extrusion block can easily contact the sand box frame, increasing the compatibility of the device during operation.

[0020] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0021] 1. This utility model can quickly complete the support and reset of the sand box frame through the setting of the back support and restoration mechanism, which facilitates the reuse of the sand box frame. Through multi-point uniform compression, the sand box frame remains stable during the restoration process, improves the uniformity of the stress on the sand box frame, and further improves the restoration effect of the sand box frame, so that the sand box frame can be reused in the future.

[0022] 2. This utility model can quickly complete the unloading of the sand box frame by setting up the material handling mechanism, remove the sand box frame from the inside of the protective frame, increase the operating space of the sand box frame, further increase the convenience of the workers, and thus better carry out the restoration processing work. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Figure 1 This is a first-person perspective schematic diagram of the overall device structure of this utility model;

[0025] Figure 2 This is a second-view schematic diagram of the overall device structure of this utility model;

[0026] Figure 3 This is a schematic diagram of a partial device structure of the present invention;

[0027] Figure 4 This is a first-person perspective schematic diagram of the retraction and restoration mechanism of this utility model.

[0028] Figure 5 This is a second-view schematic diagram of the retraction and restoration mechanism of this utility model.

[0029] Figure 6 This is a third-person perspective schematic diagram of the retraction and restoration mechanism of this utility model.

[0030] Figure 7 This is a schematic diagram of the material handling mechanism of this utility model.

[0031] In the diagram: 1. Main frame; 2. Mounting plate; 3. Anti-framing frame; 4. Sand box frame; 5. Backing and restoring mechanism; 6. Material handling mechanism; 7. Mounting frame; 8. Support block; 9. Swing arm; 10. Extrusion seat; 11. Limiting frame; 12. Top block; 13. Hydraulic cylinder; 14. Fixing frame; 15. Elastic sheet; 16. Reinforcing plate; 17. Cylinder; 18. Lifting plate; 19. Slide rod; 20. Connecting rod; 21. Mounting seat; 22. Limiting spring; 23. Extrusion block. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to the embodiments.

[0033] Example 1

[0034] like Figures 1-3 As shown, this utility model provides a deformable sand box reversal and restoration device, including: a main frame 1, an installation plate 2 fixedly installed at the top of the main frame 1, an anti-framing frame 3 fixedly installed on the upper surface of the installation plate 2, a sand box frame 4 placed inside the anti-framing frame 3, a reversal and restoration mechanism 5 installed inside the anti-framing frame 3 for supporting and restoring the sand box frame 4, and a material-retrieving mechanism 6 fixedly installed at the top of the main frame 1 for unloading the sand box frame 4; the reversal and restoration mechanism 5 includes a material-retrieving mechanism 6 fixedly installed inside the anti-framing frame 3, and installation frames 7 fixedly installed at the four corners inside the material-retrieving mechanism 6, with support blocks 8 slidably connected to each installation frame 7.

[0035] In this embodiment, when the device is in use, the operator places the sand box frame 4 to be restored inside the protective frame 3. Then, the back support and restoration mechanism 5 starts to work, supporting and restoring the deformed sand box frame 4. After the restoration of the sand box frame 4 is completed, the material handling mechanism 6 begins to descend, removing the restored sand box frame 4 from inside the protective frame 3, making it convenient for the operator to replace it, so that the restored sand box frame 4 can be reused.

[0036] like Figure 5 As shown, preferably, the ends of the support block 8 are set at right angles.

[0037] In this embodiment, the right-angled support block 8 can support and restore the sand box frame 4, thereby improving the degree of restoration of the sand box frame 4.

[0038] Example 2

[0039] like Figures 4-6 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the back support and restoration mechanism 5 further includes a swing arm 9 rotatably connected to one end of the support block 8. The end of the swing arm 9 away from the support block 8 is rotatably connected to one end of the extrusion seat 10. The extrusion seat 10 is slidably connected to the limiting frame 11, and the limiting frame 11 is fixedly installed inside the mounting frame 7. A top block 12 is slidably connected to the center of the bottom end of the mounting frame 7, and the top block 12 is extruded and engaged with the end of the extrusion seat 10. A hydraulic cylinder 13 is fixedly installed on the lower surface of the mounting plate 2, and the output end of the hydraulic cylinder 13 passes through the side wall of the mounting plate 2 and is fixedly connected to the lower surface of the top block 12.

[0040] In this embodiment, when the sand box frame 4 needs to be restored, the worker places the sand box frame 4 inside the protective frame 3. Then, the hydraulic cylinder 13 drives the top block 12 to push upward. As the top block 12 pushes upward, it will squeeze the two pressing seats 10 to both ends. As the pressing seats 10 move, they cooperate with the swing arm 9 to push the support block 8. As the support block 8 moves, it squeezes and supports the sand box frame 4 to perform the restoration work, thereby realizing the structural restoration of the sand box frame 4 and making it convenient for reuse.

[0041] like Figure 5 As shown, preferably, the mounting bracket 7 is symmetrically fixedly mounted with two fixing brackets 14. The ends of the two fixing brackets 14 are respectively fixedly connected to the ends of the elastic sheet 15, and one side of the elastic sheet 15 is fixedly connected to one end of the compression seat 10. The elastic sheet 15 is C-shaped.

[0042] In this embodiment, the elastic sheet 15 can reset the compression seat 10 when the top block 12 does not compress the compression seat 10, and the fixing frame 14 can fix the elastic sheet 15, increasing the installation stability of the device.

[0043] like Figure 6 As shown, preferably, the extrusion seat 10 is U-shaped, and a reinforcing plate 16 is fixedly installed inside the extrusion seat 10.

[0044] In this embodiment, the reinforcement plate 16 can increase the structural strength of the extrusion seat 10 and further increase the operational stability of the device.

[0045] Example 3

[0046] like Figure 7 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the material handling mechanism 6 includes a cylinder 17 fixedly installed at the top of the main frame 1. A lifting plate 18 is fixedly installed at the top of the cylinder 17. Both ends of the lifting plate 18 are slidably connected to slide rods 19, and one end of each slide rod 19 passes through the side wall of the lifting plate 18 and is fixedly connected to the top of the main frame 1. Both ends of the lifting plate 18 are fixedly installed with connecting rods 20. One end of each connecting rod 20 passes through the side wall of the main frame 1 and is fixedly installed with a mounting base 21. A limiting spring 22 is installed inside the mounting base 21. Both ends of the limiting spring 22 are fitted with pressing blocks 23, and the pressing blocks 23 are slidably connected to the mounting base 21.

[0047] In this embodiment, when it is necessary to remove material from the sand box frame 4, the cylinder 17 drives the lifting plate 18 and the connecting rod 20 to move downward. As the connecting rod 20 moves downward, the pressing block 23 will press against the end of the sand box frame 4, and the pressing block 23 will compress the limiting spring 22. The pressing block 23 enters the interior of the mounting base 21, and the mounting base 21 continues to descend. As the mounting base 21 descends, the pressing block 23 is no longer compressed, and the pressing block 23 resets under the elastic force of the limiting spring 22. The pressing block 23 restricts the end of the sand box frame 4. Subsequently, the cylinder 17 drives the connecting rod 20 to reset again, and the sand box frame 4 is removed from the inside of the frame 3 for easy reuse.

[0048] like Figure 7 As shown, preferably, the end of the extrusion block 23 is provided with an inclined surface that is extruded and fitted with the end of the sand box frame 4.

[0049] In this embodiment, the bevel at the end of the extrusion block 23 facilitates contact with the sand box frame 4, increasing the compatibility of the device during operation.

[0050] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A deformed sand box back support recovery device, characterized by, include: The main frame (1) has an installation plate (2) fixedly installed at its top. An anti-frame (3) is fixedly installed on the upper surface of the installation plate (2). A sand box frame (4) is placed inside the anti-frame (3). A back support and restoration mechanism (5) is installed inside the anti-frame (3) to support and restore the sand box frame (4). A material handling mechanism (6) for unloading the sand box frame (4) is fixedly installed at the top of the main frame (1). The back support and restoration mechanism (5) includes a material taking mechanism (6) fixedly installed inside the anti-frame (3). Each of the four corners of the material taking mechanism (6) is fixedly installed with a mounting bracket (7), and each mounting bracket (7) is slidably connected with a support block (8).

2. A reversion device for a sand box back-up according to claim 1, wherein: The end of the support block (8) is set at a right angle.

3. A reversion device for a sand box back-up according to claim 2, wherein: The back-support and recovery mechanism (5) also includes a swing arm (9) rotatably connected to one end of the support block (8). The end of the swing arm (9) away from the support block (8) is rotatably connected to one end of the extrusion seat (10). The extrusion seat (10) is slidably connected to the limiting frame (11), and the limiting frame (11) is fixedly installed inside the mounting frame (7). A top block (12) is slidably connected to the center of the bottom end of the mounting frame (7), and the top block (12) is extruded and engaged with the end of the extrusion seat (10). A hydraulic cylinder (13) is fixedly installed on the lower surface of the mounting plate (2), and the output end of the hydraulic cylinder (13) passes through the side wall of the mounting plate (2) and is fixedly connected to the lower surface of the top block (12).

4. A reversion device for a drag box back-up according to claim 3, wherein: The mounting bracket (7) is symmetrically fixedly mounted with a fixing bracket (14). The ends of the two fixing brackets (14) are respectively fixedly connected to the ends of the elastic sheet (15), and one side of the elastic sheet (15) is fixedly connected to one end of the compression seat (10). The elastic sheet (15) is C-shaped.

5. A reversion device for a sand box back-up according to claim 4, wherein: The extrusion seat (10) is U-shaped, and a reinforcing plate (16) is fixedly installed inside the extrusion seat (10).

6. A reversion device for a drag box back-up according to claim 5, wherein: The material handling mechanism (6) includes a cylinder (17) fixedly installed at the top of the main frame (1). A lifting plate (18) is fixedly installed at the top of the cylinder (17). Both ends of the lifting plate (18) are slidably connected to slide rods (19), and one end of each slide rod (19) passes through the side wall of the lifting plate (18) and is fixedly connected to the top of the main frame (1). Both ends of the lifting plate (18) are fixedly installed with connecting rods (20). One end of each connecting rod (20) passes through the side wall of the main frame (1) and is fixedly installed with a mounting base (21). A limiting spring (22) is installed inside the mounting base (21). Both ends of the limiting spring (22) are installed with pressing blocks (23), and the pressing blocks (23) are slidably connected to the mounting base (21).

7. A reversion device for a drag box back-up according to claim 6, wherein: The end of the extrusion block (23) is provided with an inclined surface that is extruded and fitted with the end of the sand box frame (4).