Welded sand box
By using end-face long plates, short plates and side-gate components in the welded sand box, combined with the arrangement of the first and second reinforcements, the stability and casting defects of the large-sized sand box are solved, and the casting effect with simple structure and space saving is achieved.
Patent Information
- Application Number
- CN202422355623.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-26
AI Technical Summary
The reinforcement structure of the existing large-size welded sand box is complex and takes up a large space, which affects the manufacturing of castings, and has casting defects such as cold partitions, insufficient pouring, pores, sand sticking, sand clamping, sand holes, sand expansion, etc.
A welded sand box consisting of end face long plates, end face short plates and side stop components is adopted to enhance structural stability by fixing the first reinforcement member and the second reinforcement member arranged inclined between the end faces, and a spacing is reserved on both sides of the reinforcement member to increase the friction of the cast sand.
It enhances the overall structural stability of the sand box and the adhesion of cast sand, reduces the encroachment on the cast sand area, ensures the manufacturing quality of large-sized castings, and simplifies the structure and reduces space occupation.
Smart Images
Figure CN223145940U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of casting, in particular to a welded sand box. Background Art
[0002] According to the company's plan, a project of 10,000 tons of high-strength, tough and wear-resistant new materials is required. In the project, the design and manufacture of a model bottom plate and a sand box are needed; the high-strength, tough and wear-resistant new materials are produced by the self-hardening sand process and hand molding, and the two-box horizontal molding process is determined; on the premise of meeting the requirements of the casting process, in order to ensure sufficient strength and stiffness and ensure no fracture or excessive deformation during use; and having sufficient adhesion to the molding sand, no sand dropping or sand box collapse during use, but being easy to shake out the sand; the sand box has a large load and is to be used for a long time; there are defects such as cold shut, misrun, porosity, adhering sand, sand inclusion, sand hole, and swelling sand in the casting sand box; based on the above considerations, we decide to adopt a welded sand box.
[0003] For a large-sized welded sand box, internal welding reinforcement structures are required to ensure the stability of the overall sand box. For complex welding reinforcement structures, they can ensure the strength of the overall sand box, but the complex reinforcement structures occupy a part of the internal volume of the sand box, affecting the manufacture of large-sized castings. Summary of the Utility Model
[0004] The purpose of the utility model is to solve the defects existing in the prior art, and a welded sand box is proposed. It can increase the friction of the casting sand in the sand box, ensure the stability of the overall structure of the casting sand, and the reinforcement structure is simple, occupies a small space, and has little encroachment on the area of the casting sand, being suitable for manufacturing large-sized castings.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A welded sand box includes a side baffle assembly composed of an end face long plate and an end face short plate, and also includes a side baffle assembly. The side baffle assembly includes an upper baffle, a lower baffle, and a middle rib plate arranged between the two. A first strengthening member is fixed between the end face long plate and the end face short plate, and a second strengthening member is fixed between the upper baffle and the lower baffle. The second strengthening member is arranged obliquely. There is a first distance between the first end of the second strengthening member and the first side end face long plate, and a second distance between the second end of the second strengthening member and the second side end face long plate. The first distance is equal to the second distance.
[0007] Preferably, the first strengthening member is an angle steel, and the angle steel is welded and fixed to the end face long plate and the end face short plate.
[0008] Preferably, the second strengthening member is a round steel, and the round steel is welded and fixed to the upper baffle and the lower baffle.
[0009] Preferably, the first spacing and the second spacing are not less than 20 mm.
[0010] Preferably, the inclination angle between the second reinforcing member and the middle layer rib plate is 45°, and the middle layer rib plate is horizontally arranged.
[0011] Preferably, the second reinforcing member includes a first reinforcing portion and a second reinforcing portion, and a guiding structure is provided between the first reinforcing portion and the second reinforcing portion.
[0012] Preferably, the guiding structure includes a guiding protrusion fixedly connected to the first reinforcing portion, and a guiding groove adapted to the guiding protrusion is formed at the end of the second reinforcing portion.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] By installing the first reinforcing member at the corner, the structural strength of the end face short board and the end face long board can be effectively enhanced. Installing the inclined second reinforcing member on the inner wall of the side baffle assembly can enhance the stability between the upper baffle, the lower baffle and the middle layer rib plate. At the same time, leaving a certain distance on both sides of the second reinforcing member can increase the friction of the casting sand in the sand box, ensure the stability of the overall structure of the casting sand, and ensure the quality of the final casting; the above-mentioned reinforcing structure is simple, occupies little space, and has little encroachment on the area of the casting sand, and is suitable for manufacturing large-sized castings. Description of the Drawings
[0015] Figure 1 It is a schematic diagram of the upper sand box of the prior art.
[0016] Figure 2 It is a schematic diagram of the lower sand box of the prior art.
[0017] Figure 3 It is a schematic diagram of the first reinforcing member of the present utility model.
[0018] Figure 4 It is a schematic diagram of the structure of Embodiment 1 of the second reinforcing member of the present utility model.
[0019] Figure 5 It is a schematic diagram of the structure of Embodiment 2 of the second reinforcing member of the present utility model.
[0020] In the figure: 100, end face short board; 200, end face long board; 300, first reinforcing member; 400, side baffle assembly; 410, upper baffle; 420, lower baffle; 430, middle layer rib plate; 500, second reinforcing member; 5001, first spacing; 5002, second spacing; 510, first reinforcing portion; 520, second reinforcing portion. Detailed Embodiments
[0021] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.
[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only embodiments.
[0023] The sand box is an essential process equipment in foundries, mainly used to carry and shape the sand mold so that a well-shaped casting can be obtained after pouring molten metal into the sand mold; especially in multi-variety and small-batch production, due to different shapes and sizes of castings, different specifications of sand boxes are required.
[0024] According to the company's plan, a project of 10,000 tons of high-strength, tough and wear-resistant new materials is required. In this project, the design and manufacture of a model bottom plate and a sand box are needed; the high-strength, tough and wear-resistant new materials are produced by the self-hardening sand process and hand molding, and the two-box horizontal molding process is determined; on the premise of meeting the foundry process requirements, in order to ensure sufficient strength and stiffness, it is ensured that there is no fracture or excessive deformation during use; and there is sufficient adhesion to the molding sand, and there is no sand dropping or sand box collapse during use, but it is also easy to shake out the sand; the sand box has a large load and is to be used for a long time; there are defects such as cold shut, misrun, porosity, sand adhesion, sand inclusion, sand hole, and sand expansion in the casting sand box; based on the above considerations, we decided to adopt a welded sand box.
[0025] For large-sized welded sand boxes, internal welding reinforcement structures are needed to ensure the stability of the overall sand box. For complex welding reinforcement structures, they can ensure the strength of the overall sand box, but the complex reinforcement structures occupy part of the internal volume of the sand box, affecting the manufacture of large-sized castings.
[0026] Refer to the attached Figure 1 - attached Figure 5, A welded sand box, including a side baffle assembly composed of an end face long plate 200 and an end face short plate 100, and further including a side baffle assembly 400. The side baffle assembly 400 includes an upper baffle 410, a lower baffle 420, and a middle layer rib plate 430 disposed therebetween. The side baffle assemblies are arranged in two groups up and down. A rectangle formed by two end face short plates 100 and two end face long plates 200 shown in the attached drawings can be selected. Similarly, different numbers of end face short plates 100 or end face long plates 200 can be combined to form side baffle assemblies with different shapes. The side baffle assembly 400 can block the sand from the position outside the edge. Four groups of side baffle assemblies 400 need to be provided for the sand box shown in the attached drawings. Here, the upper baffle 410, the lower baffle 420, and the middle layer rib plate 430 can be fixed by welding to meet the manufacturing requirements of the large-size side baffle assembly 400.
[0027] A first strengthening member 300 is fixed between the end face long plate 200 and the end face short plate 100. A second strengthening member 500 is fixed between the upper baffle 410 and the lower baffle 420. The first strengthening member 300 can fix the end face short plate 100 and the end face long plate 200, and a triangular stable structure is formed among the three, ensuring the stability of the structures of the end face short plate 100 and the end face long plate 200. The side baffle assembly 400 can fix the upper baffle 410, the lower baffle 420, and the middle layer rib plate 430, strengthening the overall structural strength of the side baffle assembly 400.
[0028] Here, the second strengthening member 500 is arranged obliquely. There is a first distance 5001 between the first end of the second strengthening member 500 and the first side end face long plate 200, and a second distance 5002 between the second end of the second strengthening member 500 and the second side end face long plate 200. The first distance 5001 is equal to the second distance 5002. The obliquely arranged second strengthening member 500 can span a longer area, increasing the fixing area and ensuring the stability of the overall structure. Moreover, by reserving the first distance 5001 and the second distance 5002 on both sides of the second strengthening member 500, after the casting sand is filled, the friction on the overall sand mold can be increased through this part of the gap. During the process of lifting and flipping the sand box, the adhesion of the sand mold can be enhanced, ensuring the stability of the casting sand in the sand mold as a whole.
[0029] By setting the same distances on both sides, after the sand box is flipped 180°, the friction received by the casting sand in the sand box is the same, avoiding the change in force that may affect the stability of the casting sand in the sand box.
[0030] In summary, installing the first reinforcement member 300 at the corner can effectively enhance the structural strength of the end face short board 100 and the end face long board 200. Installing the inclined second reinforcement member 500 on the inner wall of the side baffle assembly 400 can enhance the stability among the upper baffle 410, the lower baffle 420, and the middle rib plate 430. At the same time, leaving a certain distance on both sides of the second reinforcement member 500 can increase the friction with the foundry sand in the sand box, ensure the stability of the overall structure of the foundry sand, and guarantee the quality of the final casting. The above reinforcement structure is simple, occupies little space, and has little encroachment on the area of the foundry sand, making it suitable for manufacturing large-sized castings.
[0031] Specifically, the first reinforcement member 300 is an angle steel, and the angle steel is welded and fixed to the end face long board 200 and the end face short board 100. By setting the first reinforcement member 300 as an angle steel, while enhancing the welding area on both sides, the stability of the overall structure of the first reinforcement member 300 can be enhanced, further ensuring the stability of the overall structure.
[0032] Specifically, the second reinforcement member 500 is a round steel, and the round steel is welded and fixed to the upper baffle 410 and the lower baffle 420. By setting it as a round steel, the strength of the overall structure can be guaranteed, and both sides of the round steel can extend towards both sides on the inner wall of the sand box, effectively enhancing the adhesion to the foundry sand.
[0033] Specifically, the first spacing 5001 and the second spacing 5002 are not less than 20 mm, and the inclined angle between the second reinforcement member 500 and the middle rib plate 430 is 45°. The middle rib plate 430 is horizontally arranged. Through the above structural arrangement, after the sand box is flipped 180°, the inclined angle of the second reinforcement member 500 will not change. Moreover, an inclined angle of 45° can well stagger the air holes on the surface of the side baffle assembly 400, facilitating the welding and fixing of the overall structure. For large-sized sand boxes, leaving a distance of not less than 20 mm can exert effective adhesion on the foundry sand and ensure the stability of the overall structure.
[0034] The second reinforcement member 500 includes a first reinforcement part 510 and a second reinforcement part 520. A guiding structure is provided between the first reinforcement part 510 and the second reinforcement part 520. During the installation process, the first reinforcement part 510 can be installed and fixed first. At this time, only the inclined angle of the first reinforcement part 510 and the first spacing 5001 need to be determined. After the first reinforcement part 510 is fixed, based on the first spacing 5001, the second spacing 5002 on the second side of the second reinforcement part 520 can be determined. By the way of step-by-step fixing, the difficulty of overall fixing of the second reinforcement member 500 is reduced, and at the same time, the distance between the first reinforcement part 510 and the second reinforcement part 520 can be adjusted to meet the manufacturing requirements of sand boxes of different sizes.
[0035] It should be noted that after the first strengthening part 510 and the second strengthening part 520 are both fixed, it is necessary to fix between the first strengthening part 510 and the second strengthening part 520 to ensure the stability of the overall structure.
[0036] It should be noted that in this article, the fixing method between each part is preferably the existing welding fixing method, which has lower manufacturing requirements and processing requirements for the fittings; those skilled in the art can also choose bolt fixing or other fixing methods for fixing.
[0037] The preferred guiding structure includes a guiding protrusion fixedly connected to the first strengthening part 510. A guiding groove adapted to the guiding protrusion is formed at the end of the second strengthening part 520. After the first strengthening part 510 is fixed, the second strengthening part 520 can be positioned under the action of the guiding protrusion and the guiding groove, and the position of the second strengthening part 520 can be adjusted, and finally the second spacing 5002 can be accurately positioned; and the connection part between the first strengthening part 510 and the second strengthening part 520 can be strengthened and fixed by welding to ensure the stability of the overall structure.
[0038] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and should be covered within the protection scope of the present invention.
Claims
1. A welded sand box, comprising a side baffle assembly consisting of an end long plate (200) and an end short plate (100), and also comprising a side baffle assembly (400), wherein the side baffle assembly (400) comprises an upper baffle plate (410), a lower baffle plate (420) and a middle rib plate (430) disposed therebetween, characterized in that: A first reinforcing member (300) is fixed between the end face long plate (200) and the end face short plate (100), and a second reinforcing member (500) is fixed between the upper baffle plate (410) and the lower baffle plate (420). The second reinforcing member (500) is arranged obliquely, and a first spacing (5001) is provided between the first end of the second reinforcing member (500) and the first side end face long plate (200), and a second spacing (5002) is provided between the second end of the second reinforcing member (500) and the second side end face long plate (200), and the first spacing (5001) is equal to the second spacing (5002).
2. A welded sand box according to claim 1, characterized in that, The first reinforcement member (300) is an angle steel, and the angle steel is welded and fixed to the end face long plate (200) and the end face short plate (100).
3. A welded sand box according to claim 1, characterized in that, The second reinforcement member (500) is a round steel, and the round steel is welded and fixed to the upper baffle plate (410) and the lower baffle plate (420).
4. A welded sand box according to claim 1, characterized in that, The first spacing (5001) and the second spacing (5002) are not less than 20 mm.
5. A welded sand box according to claim 1, characterized in that, The inclined angle between the second reinforcement component (500) and the middle rib plate (430) is 45°, and the middle rib plate (430) is arranged horizontally.
6. A welded sand box according to claim 1, characterized in that, The second reinforcement member (500) comprises a first reinforcement portion (510) and a second reinforcement portion (520), and a guide structure is provided between the first reinforcement portion (510) and the second reinforcement portion (520).
7. A welded sand box according to claim 6, characterized in that, The guide structure comprises a guide protrusion fixedly connected to the first reinforcement part (510), and a guide groove adapted to the guide protrusion is formed at the end of the second reinforcement part (520).