Sand core box structure for preparing large-volume sand core
By arranging reinforcement and extension parts at the corner ends of the sand core box and combining it with the weight-reducing cavity design, the problem of insufficient connection strength of large-volume sand core boxes is solved, and efficient core making is achieved.
Patent Information
- Application Number
- CN202422777443.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-11-14
AI Technical Summary
When preparing large-volume sand cores, the existing sand core box has insufficient connection strength between the box walls and is easily damaged, which affects the core making efficiency.
A first reinforcement portion is provided at the corner end between adjacent box walls and is fitted with the box wall through an extension portion. Combined with the second reinforcement portion and the weight-reducing cavity design, the connection strength is enhanced and the weight is reduced.
The connection strength of the sand core box is improved to prevent damage, improve the core making efficiency, and ensure the smooth forming of large-volume sand cores.
Smart Images
Figure CN223338309U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of sand core preparation, and in particular to a sand core box structure for preparing large-volume sand cores. Background Art
[0002] A sand core box is a mold used for core making. During core making, sand is shot into the sand core box through the sand shooting barrel of the core making machine, and then air is blown into the sand in the sand core box through the blowing plate to shape it and form a sand core.
[0003] Although the existing sand core box can successfully complete the manufacture of small-volume sand cores, when faced with large-volume sand cores, the inner cavity of the sand core box needs to be expanded accordingly due to the large size of the sand cores. This makes it impossible to effectively ensure the connection strength between adjacent box walls. The sand core box is easily damaged during the core making process, which greatly affects the core making process and reduces the core making efficiency. Utility Model Content
[0004] In order to overcome the deficiencies of the prior art, the present application provides a sand core box structure with high strength for preparing large-volume sand cores.
[0005] The sand core box structure provided in this application adopts the following technical solution:
[0006] A sand core box structure for preparing large-volume sand cores includes two core boxes arranged one above the other. Each core box has a plurality of box walls arranged circumferentially around itself. Each adjacent two box walls are connected to each other to form a corner end, and a first reinforcement portion is provided on the outer side of the corner end.
[0007] By adopting the above technical solution, the corner end formed between two adjacent box walls can be reinforced by the first reinforcement part, which effectively improves the connection strength between multiple box walls, thereby preventing the sand core box from being damaged during the core making process and improving the core making efficiency.
[0008] In a specific possible implementation scheme, the first reinforcement portion includes a first reinforcement body attached to the outer side of the corner end, and two extension portions respectively provided on both sides of the first reinforcement body, and the two extension portions are respectively attached to the outer sides of the two box walls on the adjacent two sides of the corner end.
[0009] By adopting the above technical solution, the first reinforcement part can be connected to the two adjacent box walls through the two extension parts, thereby increasing the contact area between the first reinforcement part and the two adjacent box walls and further improving the connection strength between the two adjacent box walls.
[0010] In a specific embodiment, the thickness of the extension portion gradually decreases along a direction away from the first reinforcing body.
[0011] By adopting the above technical solution, it is effectively avoided that the extension part, due to its large thickness, interferes with other components of the core making machine during the movement of the core box.
[0012] In a specific embodiment, a second reinforcement portion is provided around the outer peripheral portion of the core box, and the first reinforcement portion is located between the second reinforcement portion and the corner end.
[0013] By adopting the above technical solution, the second reinforcement part can cooperate with the first reinforcement part, thereby improving the overall structural strength of the core box.
[0014] In a specific embodiment, a weight-reducing cavity is formed between the second reinforcement part and the core box, the first reinforcement part is located in the weight-reducing cavity, and the second reinforcement part is provided with a plurality of first openings communicating with the weight-reducing cavity around its circumference.
[0015] By adopting the above technical solution, the overall mass of the core box is effectively reduced, avoiding the influence of the core making efficiency due to the excessive mass of the core box; at the same time, the setting of the first opening can ensure that the weight-reducing cavity can be smoothly formed when preparing the core box.
[0016] In a specific embodiment, a third reinforcement portion is connected to the lightening cavity, and the third reinforcement portion surrounds the circumference of the core box.
[0017] By adopting the above technical solution, the third reinforcement part can effectively improve the connection strength between the second reinforcement part and the core box, thereby preventing the weight-reducing cavity from affecting the strength of the core box.
[0018] In a specific possible implementation manner, a clearance groove is formed on a side of the third reinforcement portion close to the first opening, and two side walls of the clearance groove are respectively connected to two opposite side portions of the first opening.
[0019] By adopting the above technical solution, interference between the third reinforcement portion and the first opening can be avoided, thereby ensuring that the weight-reducing cavity can be smoothly formed when preparing the core box.
[0020] In a specific possible implementation manner, the second reinforcement portion includes a plurality of second reinforcement bodies surrounding the circumference of the core box, and the plurality of second reinforcement bodies are respectively arranged on the plurality of box walls in a one-to-one correspondence.
[0021] By adopting the above technical solution, each box wall can be reinforced by the second reinforcing body, thereby further improving the structural strength of the core box.
[0022] In a specific embodiment, the cross-section of the second reinforcing body is step-shaped, comprising a first reinforcing wall and two second reinforcing walls respectively connected to both sides of the first reinforcing wall, the first reinforcing wall is parallel to the box wall, and the two second reinforcing walls are connected to the box wall at one side away from the first reinforcing wall.
[0023] By adopting the above technical solution, the second stepped reinforcing body has a higher structural strength, thereby further improving the structural strength of the core box.
[0024] In a specific feasible implementation scheme, the plurality of second reinforcing bodies are arranged opposite to each other in pairs, at least two of the oppositely arranged second reinforcing bodies are provided with box hook avoidance grooves, and reinforcing columns are respectively provided on the opposite side groove walls of each box hook avoidance groove.
[0025] By adopting the above technical solution, the strength of the second reinforcing body around the box hook avoidance groove is effectively improved, preventing the second reinforcing body from being damaged when the box hook is hooked in the box hook avoidance groove.
[0026] In summary, this application includes at least one of the following beneficial technical effects:
[0027] The corner end formed between two adjacent box walls can be reinforced by the first reinforcement part, which effectively improves the connection strength between the multiple box walls, thereby preventing the sand core box from being damaged during the core making process and improving the core making efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a structural schematic diagram of the sand core box structure of an embodiment of the present application.
[0029] Description of reference numerals:
[0030] 1. Core box; 11. Box wall; 12. Corner end; 2. First reinforcement part; 21. First reinforcement body; 22. Extension part; 3. Second reinforcement part; 31. Second reinforcement body; 311. First reinforcement wall; 312. Second reinforcement wall; 4. Weight reduction cavity; 5. First opening; 6. Third reinforcement part; 7. Make way groove; 8. Box hook avoidance groove; 9. Reinforcement column; 10. Bolt groove. DETAILED DESCRIPTION
[0031] The present application is further described in detail below with reference to the accompanying drawings.
[0032] See also Figure 1The figure shows a sand core box structure for preparing large-volume sand cores, comprising two core boxes 1 arranged one above the other. The two core boxes 1 are both arranged horizontally. Each core box 1 has four box walls 11 arranged circumferentially around itself. The four box walls 11 enclose an inner cavity for core making. Each adjacent box wall 11 is connected to form a corner end 12. The outer side of the corner end 12 is provided with a first reinforcement portion 2. The length direction of the first reinforcement portion 2 is the same as the axial direction of the core box 1.
[0033] In this way, by providing the first reinforcement portion 2 on the corner end 12 formed between two adjacent box walls 11, the connection strength between the four box walls 11 is effectively improved, thereby preventing the sand core box 1 from being damaged during the core making process and improving the core making efficiency.
[0034] In this embodiment, the first reinforcement portion 2 includes a first reinforcement body 21 attached to the outer side of the corner end 12, and two extensions 22 provided on either side of the first reinforcement body 21. The two extensions 22 respectively adhere to the outer sides of the two box walls 11 on either side of the corner end 12. The thickness of the extensions 22 gradually decreases as they move away from the first reinforcement body 21. The first reinforcement portion 2 can be connected to the two adjacent box walls 11 via the two extensions 22, increasing the contact area between the first reinforcement portion 2 and the two adjacent box walls 11 and further improving the connection strength between the two adjacent box walls 11. Furthermore, the gradually decreasing thickness of the extensions 22 prevents interference with other components of the core making machine during the movement of the core box 1.
[0035] In this embodiment, a second reinforcement portion 3 is provided around the outer circumference of the core box 1. The first reinforcement portion 2 is located between the second reinforcement portion 3 and the corner end 12. A weight-reducing cavity 4 is formed between the second reinforcement portion 3 and the core box 1. The first reinforcement portion 2 is located within the weight-reducing cavity 4. The second reinforcement portion 3 is provided with sixteen first openings 5 around its circumference, communicating with the weight-reducing cavity 4. The second reinforcement portion 3 provided around the outer circumference of the core box 1 cooperates with the first reinforcement portion 2 to enhance the overall structural strength of the core box 1. Furthermore, the provision of the weight-reducing cavity 4 effectively reduces the overall mass of the core box 1, preventing the core-making efficiency from being affected by the excessive mass of the core box 1. The first openings 5 are used to discharge the molding sand within the weight-reducing cavity 4 during the preparation of the core box 1, thereby enabling the weight-reducing cavity 4 to be smoothly formed.
[0036] In this embodiment, the lightening cavity 4 is internally connected to a third reinforcement portion 6. The third reinforcement portion 6 is in the form of a horizontal ring and surrounds the core box 1. The third reinforcement portion 6 effectively improves the connection strength between the second reinforcement portion 3 and the core box 1, thereby preventing the lightening cavity 4 from affecting the strength of the core box 1.
[0037] A clearance groove 7 is defined on one side of the third reinforcement portion 6 near the first opening 5. The two side walls of the clearance groove 7 are connected to the two opposite sides of the first opening 5. The clearance groove 7 prevents interference between the third reinforcement portion 6 and the first opening 5, allowing the lightening cavities 4 on both sides of the third reinforcement portion 6 to communicate, thereby ensuring smooth formation of the lightening cavities 4 during the preparation of the core box 1.
[0038] In this embodiment, the second reinforcement portion 3 includes four second reinforcement bodies 31 surrounding the core box 1. Each second reinforcement body 31 is provided with four first openings 5 along the length of the box wall 11. The four second reinforcement bodies 31 are disposed one-to-one on the four box walls 11. The second reinforcement bodies 31 have a step-like cross-section and include a first reinforcement wall 311 and two second reinforcement walls 312 connected to either side of the first reinforcement wall 311. The first reinforcement wall 311 is parallel to the box wall 11, and the two second reinforcement walls 312 are located on the upper and lower sides of the first reinforcement wall 311, and are connected to the box wall 11 on a side away from the first reinforcement wall 311. The step-like shape of the second reinforcement bodies 31 provides greater structural strength, further enhancing the structural strength of the core box 1.
[0039] There is a reinforcing plate between the weight-reducing cavities 4 in the four second reinforcing bodies 31 , and the reinforcing plate has a second opening. The weight-reducing cavities 4 in the four second reinforcing bodies 31 are connected through the second opening.
[0040] In this embodiment, four second reinforcing bodies 31 are arranged in pairs. The two core boxes 1 include an upper core box and a lower core box. The two opposing second reinforcing bodies 31 that constitute the upper core box each have two hook avoidance slots 8. Reinforcing columns 9 are provided on the opposite sides of each hook avoidance slot 8. The two reinforcing columns 9 are arranged perpendicular to the corresponding second reinforcing body 31, and each reinforcing column 9 extends in the vertical direction. This effectively improves the strength of the second reinforcing bodies 31 surrounding the hook avoidance slots 8. When the core making machine's hook hooks the upper core box through the hook avoidance slots 8, the stronger second reinforcing bodies 31 are protected from damage.
[0041] The other two opposite groove walls of the box hook avoidance groove 8 are arranged through the weight reduction cavity 4 and are perpendicular to the third reinforcement part 6 .
[0042] In this embodiment, bolt grooves 10 are provided on the two oppositely arranged second reinforcement bodies 31 constituting the upper core box and the two second reinforcement bodies 31 constituting the lower core box. The groove walls on both sides of the bolt grooves 10 pass through the weight reduction cavity 4 and are perpendicular to the third reinforcement part 6. The two bolt grooves 10 on the upper core box and the two bolt grooves 10 on the lower core box are arranged in pairs and are used to lock the upper core box and the lower core box.
[0043] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A sand core box structure for preparing large-volume sand cores, comprising two core boxes (1) arranged one above the other, characterized in that: Each core box (1) has a plurality of box walls (11) arranged around its own circumference, and each two adjacent box walls (11) are connected to each other to form an angle end (12), and the outer side of the angle end (12) is provided with a first reinforcement part (2).
2. The sand core box structure for preparing large-volume sand cores according to claim 1, characterized in that: The first reinforcing portion (2) comprises a first reinforcing body (21) attached to the outer side of the corner end (12), and two extension portions (22) respectively provided on both sides of the first reinforcing body (21), wherein the two extension portions (22) respectively fit with the outer sides of the two box walls (11) on the adjacent sides of the corner end (12).
3. The sand core box structure for preparing large-volume sand cores according to claim 2, characterized in that: The thickness of the extension portion (22) gradually decreases in a direction away from the first reinforcing body (21).
4. The sand core box structure for preparing large-volume sand cores according to claim 1, characterized in that: A second reinforcement portion (3) is provided around the outer peripheral portion of the core box (1), and the first reinforcement portion (2) is located between the second reinforcement portion (3) and the corner end (12).
5. The sand core box structure for preparing large-volume sand cores according to claim 4, characterized in that: A weight-reducing cavity (4) is formed between the second reinforcement portion (3) and the core box (1), the first reinforcement portion (2) is located in the weight-reducing cavity (4), and the second reinforcement portion (3) is provided with a plurality of first openings (5) in communication with the weight-reducing cavity (4) around its own circumference.
6. The sand core box structure for preparing large-volume sand cores according to claim 5, characterized in that: A third reinforcement portion (6) is connected to the weight-reducing cavity (4), and the third reinforcement portion (6) surrounds the circumference of the core box (1).
7. The sand core box structure for preparing large-volume sand cores according to claim 6, characterized in that: A clearance groove (7) is provided on one side of the third reinforcement portion (6) close to the first opening (5), and two side walls of the clearance groove (7) are respectively connected to two side portions opposite to the first opening (5).
8. The sand core box structure for preparing large-volume sand cores according to claim 4, characterized in that: The second reinforcement portion (3) comprises a plurality of second reinforcement bodies (31) surrounding the circumference of the core box (1), and the plurality of second reinforcement bodies (31) are respectively arranged on the plurality of box walls (11) in a one-to-one correspondence.
9. The sand core box structure for preparing large-volume sand cores according to claim 8, characterized in that: The cross section of the second reinforcing body (31) is terraced, comprising a first reinforcing wall (311) and two second reinforcing walls (312) respectively connected to both sides of the first reinforcing wall (311); the first reinforcing wall (311) is parallel to the box wall (11); and the two second reinforcing walls (312) are connected to the box wall (11) at a side away from the first reinforcing wall (311).
10. The sand core box structure for preparing large-volume sand cores according to claim 8, characterized in that: The plurality of second reinforcing bodies (31) are arranged opposite to each other in pairs, and at least two of the oppositely arranged second reinforcing bodies (31) are provided with box hook avoidance grooves (8), and reinforcing columns (9) are respectively provided on the opposite side groove walls of each box hook avoidance groove (8).