Sand core frame for casting
By designing a casting sand core frame with manual pin mechanical protection, the safety hazards and high replacement costs of multi-layer sand core frames are solved, enabling simple handling and low-cost storage of multi-layer sand cores, thus improving safety and economy.
Patent Information
- Application Number
- CN202423211331.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Existing technologies struggle to increase the storage capacity of sand core frames for sand cores. Furthermore, activated carbon injection technology is costly and prone to wear, leading to unstable support and significant safety hazards. Pneumatic telescopic rods also pose safety risks to the sand core frames, resulting in unstable support and increased complexity.
Design a sand core frame for casting, including a main frame, structural mesh on both sides and the back, an open structure on the front and top, and an internal base plate and multi-layer flat plate assembly. The flat plate assembly can be flipped and fixed by a limiting component to prevent the sand core from slipping. It adopts manual pin mechanical protection to reduce replacement costs.
It enables easy placement and removal of multi-layer sand cores, with a simple structure, low cost, and high safety. It avoids the safety hazards of pneumatic telescopic rods, reduces the difficulty and cost of replacement, and improves the performance.
Smart Images
Figure CN223619205U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of casting sand core storage and transportation technology, specifically to a casting sand core frame. Background Technology
[0002] Sand core frames are indispensable auxiliary tools for storing and transporting sand cores in casting production. Single-layer sand core frames have a limited capacity, leading to the development of multi-layer frames to accommodate more cores. However, multi-layer frames increase complexity. Furthermore, to facilitate core handling, the frame's panels are designed to rotate or move; for safety and usability, these panels require securing after movement. Current sand core frames use pneumatic telescopic rods, which suffer from drawbacks such as high usage frequency, wear and pressure loss leading to unstable support and significant safety hazards. Additionally, replacing pneumatic telescopic rods is costly and unsuitable for large-scale maintenance. Therefore, designing a new type of sand core frame is essential to increase storage capacity while reducing frame complexity, improving safety, economy, and usability. Summary of the Invention
[0003] The purpose of this invention is to address the problems existing in the prior art by providing a sand core frame for casting.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A casting sand core frame includes a main frame with structural meshes on both sides and the back, and an open structure on the front and top. The main frame contains a base plate and a multi-layer flat plate assembly. One side of the flat plate assembly is rotatably connected to the main frame, and the side of the flat plate assembly facing the front overlaps with the main frame to allow the flat plate assembly to open upwards. A limiting component is also provided within the main frame to maintain the open state of the flat plate assembly.
[0006] This casting sand core frame, through the main frame and its internal flip-up flat plate assembly, can place and accommodate multiple layers of sand cores. The sand cores are easy to pick up and put in. Moreover, the entire sand core frame has the advantages of simple structure, easy manufacturing, low cost and high safety, and can be used in large quantities for storing casting sand cores.
[0007] The flat plate assembly and the base plate are used to support the sand cores. The flat plate assembly can be flipped upwards to place or retrieve sand cores layer by layer. The limiting component can temporarily fix the flat plate assembly and keep it in an open state, so that the sand cores in the lower layer can be placed or retrieved.
[0008] Furthermore, the flat panel assembly includes a flat panel with a handle on the side of the flat panel near the front of the main frame for easy gripping and use by workers; the side of the flat panel near the back of the main frame is connected to the main frame via a pivot.
[0009] Furthermore, the surfaces of the base plate and the flat plate are provided with at least one layer of rubber pad, which can reduce the impact of the sand core and improve the stability of the sand core when it is placed.
[0010] Furthermore, the main frame includes multiple support columns, with the base plate located at the lower part of the multiple support columns, and crossbars located at the upper part between the support columns on both sides and the back. The structural mesh is arranged between the crossbars on the sides and the back and the support columns.
[0011] Furthermore, the support column on the front side has multiple overlapping joints spaced apart from top to bottom to support the flat plate assembly; the support column on the back side has multiple rotating shaft connection holes spaced apart from top to bottom.
[0012] Furthermore, the top of each support column is provided with a docking hole, and the bottom of the support column is provided with a support foot. The docking hole and the support foot are designed to allow multiple sand core frames to be stacked, reducing the floor space occupied.
[0013] Furthermore, at least one set of limiting components is provided within the main frame. The limiting components include a fixing post disposed on the inner side of the main frame. The fixing post is provided with a plurality of limiting holes spaced apart from top to bottom. A pin is provided at each limiting hole. The pin of each layer is arranged higher than the flat plate assembly of each layer.
[0014] Furthermore, multiple side supports and main supports are provided below the base plate, and the bottom surfaces of the side supports and the main supports are respectively provided with adhesive surfaces.
[0015] Furthermore, multiple side supports and main supports are provided below the base plate, and the side supports and main supports are provided with forklift insertion holes.
[0016] Furthermore, the side support and the main support are both three-fold steel plates, forming the forklift insertion hole between them and the bottom of the base plate, and the surfaces of the side support and the main support are respectively provided with adhesive surfaces.
[0017] Compared with the prior art, the beneficial effects of this utility model are: 1. This casting sand core frame, through the main frame and its internal flip-up plate assembly, can place and accommodate multiple layers of sand cores. The placement and removal of sand cores are also relatively simple. Furthermore, the entire sand core frame has advantages such as simple structure, ease of manufacture, low cost, and high safety, and can be used in large quantities for storing casting sand cores; 2. The three-sided mesh structure provides protection, preventing sand cores from slipping off the sides and back, and also serves an aesthetic purpose; 3. The plate assembly can be flipped upwards for easy access to the sand cores. 4. The mating holes and the foot supports are designed to allow multiple sand core frames to be stacked, reducing the floor space occupied. 5. The limiting component is a manual pin-type mechanical protection device with high safety performance. It can effectively solve the safety hazards caused by the traditional pneumatic telescopic rod of the sand core frame. Compared with the pneumatic telescopic rod, the pin has a very low cost, can be replaced in time when wear is found, and the replacement is easy. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of a casting sand core frame according to the present invention;
[0019] Figure 2 This is a schematic diagram illustrating the usage state of a casting sand core frame according to this utility model;
[0020] Figure 3 This is a front view of the casting sand core frame provided in this embodiment;
[0021] Figure 4 This is a side view of the casting sand core frame provided in this embodiment;
[0022] Figure 5 This is a top view of the casting sand core frame provided in this embodiment;
[0023] In the diagram: 1. Main frame; 2. Flat plate assembly; 3. Limiting assembly; 4. Main crossbar; 5. Side crossbar; 6. Support column; 7. Base plate; 8. Connecting hole; 9. Structural mesh; 10. Rotating shaft; 11. Support leg; 12. Side support; 13. Side bottom support; 14. Main support; 15. Main bottom support; 16. Overlap joint; 17. Flat plate; 18. Handle; 19. Fixing column; 20. Pin. Detailed Implementation
[0024] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the 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.
[0025] In the description of this utility model, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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.
[0026] like Figures 1-5 As shown, a casting sand core frame includes a main frame 1, with structural mesh 9 on both sides and the back of the main frame 1, and an open structure on the front and top surfaces of the main frame 1; a base plate 7 and a multi-layer flat plate assembly 2 are provided inside the main frame 1, one side of the flat plate assembly 2 is rotatably connected to the main frame 1, and the side of the flat plate assembly 2 facing the front overlaps with the main frame 1 so that the flat plate assembly 2 can be opened upwards; a limiting component 3 is also provided inside the main frame 1 to keep the flat plate assembly 2 in the open state.
[0027] This casting sand core frame, through the main frame 1 and the internal flip-up flat plate assembly 2, can place and accommodate multiple layers of sand cores. The sand cores are easy to pick up and put down. Moreover, the entire sand core frame has the advantages of simple structure, easy manufacturing, low cost and high safety, and can be used in large quantities for storing casting sand cores.
[0028] The main frame 1 is the main structure that supports the structural mesh 9 and the flat plate assembly 2. The structural mesh 9, which is set on three sides, can play a protective role, preventing the sand core from slipping off from the side and back, and also plays an aesthetic role.
[0029] The flat plate assembly 2 and the base plate 7 are used to support the sand core. The flat plate assembly 2 can be flipped upwards to place or remove sand cores layer by layer. The limiting assembly 3 can temporarily fix the flat plate assembly 2 and keep it in an open state, so that the sand cores in the lower layer can be placed or removed.
[0030] Due to the size and efficiency requirements of sand cores, sand core frames typically have three to five layers. In use, each layer of the flat panel assembly is first flipped upwards and fixed in place by the limiting components. The sand cores are then stored on the base plate. When the base plate is full, the bottom flat panel assembly is released from its limiting position, and sand cores are placed on top of it. This process is repeated for each of the upper flat panel assemblies, allowing the sand core frame to hold a larger number of sand cores. The operation is simple. When a sand core is needed, it can be retrieved starting from the top flat panel assembly. After the top flat panel assembly is empty, it is flipped up and fixed in place, allowing access to the next flat panel assembly. This process continues until all sand cores on the base plate are removed. At this point, the sand core frame is empty again and ready to receive new sand cores.
[0031] The main frame 1, the flat plate assembly 2, and the limiting assembly 3 are all stainless steel structural components, and multiple reinforcement and smooth transition measures are adopted to ensure the strength of the sand core frame and its safety in use.
[0032] Furthermore, the flat panel assembly 2 includes a flat panel 17, with a handle 18 on the side of the flat panel 1 near the front of the main frame 1, and the side of the flat panel 17 near the back of the main frame 1 connected to the main frame 1 via a pivot 10.
[0033] These flat plates 17 are arranged parallel to the base plate 7 when placed. The handle 18 is designed for easy use by workers to open and close the flat plate 17. The flat plate 17 is connected to the main frame via a pivot so that it can be flipped.
[0034] In this embodiment, four-layer flat plates 17 and four handles 18 are provided for placing sand cores and for manual use; the rear end of the flat plate 17 is connected to the rear support columns 6 of the two main frame through two left and right rotating shafts 10, so as to facilitate rotation around the shaft; the handles 18 are vertically arranged in the middle of the front end of the flat plate 17 for easy gripping.
[0035] Furthermore, the surfaces of the base plate 7 and the flat plate 17 are provided with a thick rubber pad to reduce impacts to the sand core, improve the stability of the sand core during placement, and reduce wear caused by high-frequency use.
[0036] Furthermore, the main frame 1 includes multiple support columns 6, with the base plate 7 located at the lower position of the multiple support columns 6, and crossbars (including main crossbars 4 and side crossbars 5) located at the upper position between the support columns 6 on both sides and the back, and the structural mesh 9 is provided between the crossbars on the sides and the back and the support columns.
[0037] Specifically, the main frame 1 consists of a main crossbar 4, two side crossbars 5, four support columns 6, and a base plate 7 as the main body, and uses non-solid materials to reduce the weight of the sand core frame; the auxiliary surface is provided with three structural meshes 9, which are made of solid rod-shaped materials (such as steel bars) connected longitudinally and transversely to improve strength and aesthetics.
[0038] like Figure 1 , Figure 3 and Figure 5 As shown, the top of the support column 6 is provided with a hollow square-shaped docking hole 8, and the bottom is provided with an inverted quadrangular frustum-shaped support foot 11 with rubber pads, which facilitates the stacking of multiple sand core frames and can also ensure stability; at the same time, among the four support columns 6, the last two are each connected to four rotating shafts 10, and the first two are each provided with four overlapping joints 16.
[0039] Furthermore, the support column 6 on the front side is provided with a plurality of overlapping joints 16 spaced apart from top to bottom. The overlapping joints 16 are set on the overlapping small platform and are used to support the flat plate assembly 2. The support column 6 on the back side is provided with a plurality of rotating shaft connecting holes spaced apart from top to bottom and are used to connect the rotating shaft 10. The rotating shaft can be set on the support column and then connected to the flat plate.
[0040] Furthermore, at least one set of limiting components 3 is provided inside the main frame 1. The limiting components 3 include a fixing post 19 disposed on the inner side of the side of the main frame 1. A plurality of limiting holes are provided on the fixing post 19 from top to bottom. A pin 20 is provided at the limiting hole. The pin 20 of each layer is arranged higher than the flat plate component in the horizontal state of each layer.
[0041] Specifically, the limiting component 3 includes a fixing post 19 and four pins 20, which are located on the rear left side of the frame. The fixing post 19 is a square tube, with its upper end fixed to the left crossbar 5 and its lower end fixed to the base plate 7. It is installed vertically and has positioning holes. The pins 20 are located at the holes of the fixing post 19, and both ends of the pins are provided with anti-drop measures to fix their position when the plate 17 is raised.
[0042] This manual locking pin features mechanical protection and high safety performance, effectively solving the safety hazards associated with traditional pneumatic telescopic rods used in sand core frames. Compared to pneumatic telescopic rods, the locking pin is extremely low in cost, can be replaced promptly when wear is detected, is easy to replace, and provides good performance.
[0043] Furthermore, a plurality of side supports 13 and main supports 15 are provided below the base plate 7, and the bottom surfaces of the side supports 13 and the main supports 15 are respectively provided with adhesive surfaces. A plurality of side supports 12 and main supports 14 are also provided below the base plate 7, and the side supports 12 and the main supports 14 are provided with forklift insertion holes.
[0044] Specifically, the bottom of the base plate 7 is provided with side bottom supports 13 at both the left and right ends, and main bottom supports 15 at both the front and back ends (front and back). The bottom of each bottom support is flat and covered with a layer of rubber to increase the contact area between the frame and the ground and reduce wear on the ground. The bottom of the base plate 7 is provided with two side supports 12 at each of the left and right ends, and two main supports 14 at each of the front and back ends. The side bottom supports 13 are located in the middle of the side, and a pair of side supports 12 are symmetrically arranged on both sides of the side bottom supports 13. The main bottom supports 15 are located in the middle of the front and back ends, and a pair of main supports 14 are symmetrically arranged on both sides of the main bottom supports 15. The side supports 12 and the main supports 14 facilitate forklift lifting of the entire sand core frame.
[0045] Furthermore, the side support 12 and the main support 14 are both three-fold steel plates, forming the forklift insertion hole between them and the bottom of the base plate 7. The surfaces of the side support 12 and the main support 14 are respectively provided with rubber surfaces to prevent the frame from accidentally tipping over during transportation by forklift. The side support 12 and the main support 14 can also provide auxiliary support for the sand core frame.
[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A sand core frame for casting, characterized in that, The device includes a main frame with structural mesh on both sides and the back. The front and top surfaces of the main frame are open structures. Inside the main frame, there is a base plate and a multi-layer flat panel assembly. One side of the flat panel assembly is rotatably connected to the main frame, and the side of the flat panel assembly facing the front overlaps with the main frame so that the flat panel assembly can be opened upwards. The main frame also has a limiting component to keep the flat panel assembly in the open state.
2. The casting sand core frame according to claim 1, characterized in that, The flat panel assembly includes a flat panel with a handle on the side of the flat panel near the front of the main frame, and the side of the flat panel near the back of the main frame is connected to the main frame via a pivot.
3. The casting sand core frame according to claim 2, characterized in that, The surfaces of the base plate and the flat plate are provided with at least one layer of rubber pad.
4. The casting sand core frame according to claim 1, characterized in that, The main frame includes multiple support columns, with the base plate located at the lower part of the multiple support columns. Horizontal bars are provided between the support columns on both sides and the back at the upper part, and the structural mesh is provided between the horizontal bars on the sides and the back and the support columns.
5. The casting sand core frame according to claim 4, characterized in that, The support column on the front side has multiple overlapping joints spaced apart from top to bottom to support the flat plate assembly; the support column on the back side has multiple rotating shaft connection holes spaced apart from top to bottom.
6. The casting sand core frame according to claim 4, characterized in that, The top of each support column is provided with a docking hole, and the bottom of the support column is provided with a support foot.
7. The casting sand core frame according to claim 1, characterized in that, The limiting component includes a fixing post disposed on the inner side of the main frame. The fixing post is provided with a plurality of limiting holes spaced apart from top to bottom. A pin is provided at each limiting hole. The pin of each layer is arranged higher than the flat plate component of each layer.
8. The casting sand core frame according to claim 1, characterized in that, The base plate is also provided with multiple side bottom supports and main bottom supports, and the bottom surfaces of the side bottom supports and the main bottom supports are respectively provided with rubber surfaces.
9. The casting sand core frame according to claim 1, characterized in that, The base plate is also provided with multiple side supports and main supports, and the side supports and main supports are provided with forklift insertion holes.
10. The casting sand core frame according to claim 9, characterized in that, The side support and the main support are both three-fold steel plates, forming the forklift insertion hole between them and the bottom of the base plate. The surfaces of the side support and the main support are respectively provided with adhesive surfaces.