Combined type precoated sand casting sand core
By designing a splicing structure for components such as the first half-ring casting sand core and the second half-ring casting sand core, the problem of difficult sand core connection in the existing technology is solved, achieving stable connection and expanding the scope of application, enabling the casting of longer sand castings.
Patent Information
- Application Number
- CN202520584991.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-31
AI Technical Summary
Existing composite coated sand casting cores have difficulties in splicing and connecting, making it difficult to cast longer sand castings and resulting in poor practicality.
The design employs a first half-ring cast sand core, a second half-ring cast sand core, an arc plate, a locking block, a docking block, a positioning block, and a strip plate. Through the insertion of the locking blocks and slots, combined with the tightening of bolts and nuts, stable splicing between sand cores is achieved.
It enables convenient splicing and stable connection between sand cores, allowing for the casting of longer sand castings and improving the practicality of coated sand casting.
Smart Images
Figure CN223932534U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coated sand casting technology, specifically a combined coated sand casting sand core. Background Technology
[0002] Coated sand refers to molding sand or core sand whose surface is covered with a layer of cured resin film before molding. Coated sand casting is a process in which the sand mold and sand core made of coated sand are combined to form a casting cavity, and then liquid metal is poured into the casting cavity. After cooling, the casting blank is obtained by removing the sand mold and sand core and cleaning the gating and riser.
[0003] Existing composite coated sand casting cores are not convenient for splicing and connecting the sand cores, which makes it difficult to cast longer sand castings and has poor practicality. The present invention provides a composite coated sand casting core that solves the above problems. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a combined coated sand casting core, which solves the problems mentioned in the background art.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a combined coated sand casting core, comprising a first semi-ring casting core, a second semi-ring casting core, an arc-shaped plate, and a reinforcing plate. A locking block is installed on one side of each of the first and second semi-ring casting cores. A connecting block is installed on the side of the first semi-ring casting core away from the locking block. A positioning block is installed on the inner top wall of the arc-shaped plate. A strip plate is installed on the inner wall of the arc-shaped plate. A first connecting rod, a second connecting rod, and a rectangular block are respectively installed on one side of the reinforcing plate. A square block is installed at the end of the first connecting rod away from the reinforcing plate. An annular block is installed at the bottom of both the first and second connecting rods. A bolt passes through the interior of the annular block, and a nut is threaded onto the outer surface of the bolt.
[0008] Optionally, the first half-ring casting sand core abuts against the second half-ring casting sand core. Both the first half-ring casting sand core and the second half-ring casting sand core have a slot on the side near the locking block. The end of the locking block is inserted into the slot. The side of the second half-ring casting sand core away from the locking block has a mating groove. The end of the mating block is inserted into the mating groove.
[0009] Optionally, the outer surfaces of the first and second semi-ring casting sand cores are provided with rectangular grooves and strip grooves. The ends of the rectangular blocks are inserted into the interior of the rectangular grooves, the ends of the strip plates are located inside the strip grooves, and the arc plates abut against the first and second semi-ring casting sand cores respectively.
[0010] Optionally, the top of the first half-ring casting sand core, the second half-ring casting sand core, and the locking block are all provided with positioning grooves, and the end of the positioning block is inserted into the inside of the positioning groove.
[0011] Optionally, the end of the second connecting rod away from the reinforcing plate is provided with a square groove that matches the square block, and the end of the square block is inserted into the inside of the square groove, with the first connecting rod abutting against the second connecting rod.
[0012] Optionally, the reinforcing plate abuts against the first half-ring cast sand core and the second half-ring cast sand core respectively, and the position of the rectangular block is higher than the position of the first connecting rod and the second connecting rod respectively.
[0013] This utility model provides a combined coated sand casting core, which has the following beneficial effects:
[0014] 1. This modular coated sand casting core, through the arrangement of a first half-ring casting sand core, a second half-ring casting sand core, an arc-shaped plate, a locking block, a connecting block, a positioning block, and a strip plate, enables convenient splicing and assembly between sand cores. The locking block facilitates the splicing of the first and second half-ring casting sand cores into a complete sand core. The arc-shaped plate, positioning block, and strip plate work together to reinforce the connection, thereby improving practicality.
[0015] 2. This modular coated sand casting core, through the arrangement of reinforcing plates, a first connecting rod, a second connecting rod, rectangular blocks, square blocks, ring blocks, bolts, and nuts, enables convenient splicing and assembly between adjacent sand cores. The butt joint blocks provide a butt connection, while the rectangular blocks, first connecting rod, and second connecting rod provide a reinforced connection. The bolts and nuts further reinforce the connection, facilitating the splicing and assembly of multiple sand cores. This allows for the casting of longer sand castings, expanding the scope of application and achieving the goal of improving practicality. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a structural schematic diagram of the present invention in frontal cross-section;
[0018] Figure 3 This utility model Figure 2Enlarged structural diagram at point A;
[0019] Figure 4 This is a top view sectional diagram of the present invention.
[0020] Figure 5 This utility model Figure 4 Enlarged structural diagram at point B;
[0021] Figure 6 This is a side view sectional diagram of the present invention.
[0022] In the diagram: 1. First semi-ring cast sand core; 2. Second semi-ring cast sand core; 3. Arc plate; 4. Reinforcing plate; 5. Clamping block; 6. Butt joint block; 7. Positioning block; 8. Strip plate; 9. First connecting rod; 10. Second connecting rod; 11. Rectangular block; 12. Square block; 13. Ring block; 14. Bolt; 15. Nut; 16. Slot; 17. Butt joint groove; 18. Rectangular groove; 19. Strip groove; 20. Square groove. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Example 1
[0025] Please see Figures 1 to 6 This utility model provides a technical solution: a combined coated sand casting core, comprising a first semi-ring casting core 1, a second semi-ring casting core 2, an arc plate 3, and a reinforcing plate 4. A locking block 5 is installed on one side of both the first semi-ring casting core 1 and the second semi-ring casting core 2. A connecting block 6 is installed on the side of the first semi-ring casting core 1 away from the locking block 5. A positioning block 7 is installed on the inner top wall of the arc plate 3. A strip plate 8 is installed on the inner wall of the arc plate 3. A first connecting rod 9, a second connecting rod 10, and a rectangular block 11 are respectively installed on one side of the reinforcing plate 4. A square block 12 is installed at the end of the first connecting rod 9 away from the reinforcing plate 4. An annular block 13 is installed at the bottom of both the first connecting rod 9 and the second connecting rod 10. A bolt 14 passes through the interior of the annular block 13, and a nut 15 is threaded onto the outer surface of the bolt 14.
[0026] Specifically, the first half-ring casting sand core 1 and the second half-ring casting sand core 2 abut against each other. The first half-ring casting sand core 1 and the second half-ring casting sand core 2 are both provided with a slot 16 on the side near the locking block 5. The end of the locking block 5 is inserted into the inside of the slot 16. The second half-ring casting sand core 2 is provided with a mating groove 17 on the side away from the locking block 5. The end of the mating block 6 is inserted into the inside of the mating groove 17.
[0027] Please refer to Figure 1 to Figure 5 The first half-ring casting sand core 1 inserts into the slot 16 on the second half-ring casting sand core 2, and the second half-ring casting sand core 2 inserts into the slot 16 on the first half-ring casting sand core 1, so that the first half-ring casting sand core 1 and the second half-ring casting sand core 2 can be spliced together to form a complete sand core. The mating block 6 is inserted into the mating groove 17, so that the complete sand cores can be spliced together.
[0028] Specifically, rectangular grooves 18 and strip grooves 19 are provided on the outer surfaces of the first semi-ring casting sand core 1 and the second semi-ring casting sand core 2, respectively. The end of the rectangular block 11 is inserted into the inside of the rectangular groove 18, the end of the strip plate 8 is located inside the strip groove 19, and the arc plate 3 abuts against the first semi-ring casting sand core 1 and the second semi-ring casting sand core 2 respectively.
[0029] Please refer to Figure 1 to Figure 5 The end of the strip plate 8 is inserted into the strip groove 19, and with the cooperation of the arc plate 3, it plays a role in reinforcing and connecting the first half-ring casting sand core 1 and the second half-ring casting sand core 2.
[0030] Specifically, the top of the first half-ring casting sand core 1, the second half-ring casting sand core 2, and the locking block 5 are all provided with positioning grooves, and the end of the positioning block 7 is inserted into the inside of the positioning groove.
[0031] Please refer to Figure 1 to Figure 5 The positioning block 7 is inserted into the positioning groove, which serves to restrict the locking block 5 and facilitates the reinforcement of the connection.
[0032] Specifically, the end of the second connecting rod 10 away from the reinforcing plate 4 has a square groove 20 that matches the square block 12. The end of the square block 12 is inserted into the square groove 20, and the first connecting rod 9 abuts against the second connecting rod 10.
[0033] Please see Figures 1 to 6 The cooperation of the first connecting rod 9 and the second connecting rod 10 plays a role in ensuring the stability of the splicing combination between complete sand cores, while the square block 12 plays a role in positioning and splicing.
[0034] Specifically, the reinforcing plate 4 abuts against the first semi-ring casting sand core 1 and the second semi-ring casting sand core 2 respectively, and the rectangular block 11 is positioned higher than the first connecting rod 9 and the second connecting rod 10 respectively.
[0035] Please refer to Figure 1 to Figure 6 The rectangular block 11 is inserted into the interior of the rectangular groove 18 to facilitate positioning and connection. The reinforcing plate 4, bolt 14, and nut 15 work together to reinforce the connection.
[0036] In use, when adjacent first half-ring casting sand cores 1 and second half-ring casting sand cores 2 are spliced together to form a complete sand core, the first half-ring casting sand core 1 and the second half-ring casting sand core 2 are moved so that the end of the locking block 5 is inserted into the inside of the locking groove 16. When the first half-ring casting sand core 1 and the second half-ring casting sand core 2 abut against each other, the positioning groove on the locking block 5 is aligned with the positioning groove on the first half-ring casting sand core 1 and the second half-ring casting sand core 2. The arc plate 3 is moved so that the end of the positioning block 7 is inserted into the inside of the positioning groove, and the strip plate 8 is inserted into the inside of the strip groove 19, until the inner top wall of the arc plate 3 abuts against the first half-ring casting sand core 1 and the second half-ring casting sand core 2 respectively, facilitating the splicing into a complete sand core. When splicing the whole sand cores, the end of the mating block 6 is inserted into the mating groove 17. When the mating block 6 is fully inserted into the mating groove 17, the reinforcing plate 4 is moved so that the rectangular block 11 on the reinforcing plate 4 is inserted into the rectangular groove 18 opened on the first half-ring casting sand core 1 and the second half-ring casting sand core 2. When the reinforcing plate 4 abuts against the first half-ring casting sand core 1 and the second half-ring casting sand core 2 respectively, the square block 12 on the first connecting rod 9 is inserted into the square groove 20 on the second connecting rod 10, so that the bolt 14 passes through the ring block 13 and the bolt 14 is threadedly connected to the nut 15, which plays a role in reinforcing the splicing of the sand cores and improving the stability of the splicing.
[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A composite coated sand casting core, comprising a first semi-ring casting core, a second semi-ring casting core, an arc-shaped plate, and a reinforcing plate, characterized in that: One side of each of the first and second semi-ring casting sand cores is equipped with a locking block. The side of the first semi-ring casting sand core away from the locking block is equipped with a connecting block. A positioning block is installed on the inner top wall of the arc plate. A strip plate is installed on the inner wall of the arc plate. One side of the reinforcing plate is equipped with a first connecting rod, a second connecting rod, and a rectangular block. A square block is installed at the end of the first connecting rod away from the reinforcing plate. An annular block is installed at the bottom of both the first and second connecting rods. A bolt passes through the inside of the annular block, and a nut is threaded onto the outer surface of the bolt.
2. The composite coated sand casting core according to claim 1, characterized in that: The first half-ring casting sand core abuts against the second half-ring casting sand core. Both the first half-ring casting sand core and the second half-ring casting sand core have slots on the side near the locking block. The end of the locking block is inserted into the slot. The second half-ring casting sand core has a mating groove on the side away from the locking block. The end of the mating block is inserted into the mating groove.
3. The composite coated sand casting core according to claim 1, characterized in that: The outer surfaces of both the first and second semi-ring casting sand cores are provided with rectangular grooves and strip grooves. The ends of the rectangular blocks are inserted into the interior of the rectangular grooves, and the ends of the strip plates are located inside the strip grooves. The arc plates abut against the first and second semi-ring casting sand cores, respectively.
4. The composite coated sand casting core according to claim 1, characterized in that: The top of the first half-ring casting sand core, the second half-ring casting sand core, and the locking block are all provided with positioning grooves, and the end of the positioning block is inserted into the inside of the positioning groove.
5. A combined coated sand casting core according to claim 1, characterized in that: The second connecting rod has a square groove at the end away from the reinforcing plate that matches the square block. The end of the square block is inserted into the square groove, and the first connecting rod abuts against the second connecting rod.
6. A combined coated sand casting core according to claim 1, characterized in that: The reinforcing plate abuts against the first half-ring cast sand core and the second half-ring cast sand core respectively, and the position of the rectangular block is higher than the position of the first connecting rod and the second connecting rod respectively.