Tidal mould sand external sprue basin

Abstract

The utility model relates to casting equipment technical field discloses a tide mould sand external sprue basin, including sprue basin body, the top of sprue basin body is fixedly connected with a plurality of support blocks, the adjacent between a plurality of support blocks all are fixedly connected with the clamping stop piece, a plurality of clamping stop pieces's outer wall slidingly connected has the pouring opening, the outer surface fixedly connected with a plurality of wedge blocks of pouring opening, a plurality of wedge blocks's inner wall all are seted up clamping stop groove, the outer surface fixedly connected with a plurality of support rods of pouring opening, a plurality of support rods's outer surface all are fixedly connected with the latch, the inner wall of sprue basin body is seted up a plurality of keying slots, in the utility model, through the accurate clamping of clamping stop piece and wedge block's clamping stop groove realizes the primary positioning, and after cooperating the secondary locking of latch insertion keying slot and clamping into sliding slot, makes the pouring opening and sprue basin body connect closely, prevents the leakage of metal liquid and the displacement of part when pouring, and the casting forming quality is improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of casting equipment technology, and in particular to a mold sand external pouring basin. Background Technology

[0002] The external pouring basin for molded sand plays a crucial role in the molded sand casting process. It is used to receive the molten metal delivered by the ladle, guide it to flow smoothly into the sprue, intercept slag and impurities, and complete the purification and stabilization of the molten metal. This allows the molten metal to fill the mold cavity evenly and reduces defects such as porosity and slag inclusions. The external pouring basin for molded sand is mostly used in the production of medium and large cast iron parts and in automated molded sand molding lines.

[0003] When receiving molten metal from a ladle and guiding it smoothly into the sprue to intercept slag and impurities, thus purifying and stabilizing the flow of the molten metal, an external pouring basin made of wet-molten sand is required. Existing external pouring basins are mostly integrally molded or use welded or glued fixed structures, lacking convenient disassembly designs. This makes it easy for parts to break during disassembly, and the disassembly process is cumbersome and time-consuming. It cannot be reused and can only be discarded as a whole, which will significantly increase the cost of replacement and disposal of consumables. Moreover, wear before disposal can easily lead to a decline in sealing and slag-blocking performance, ultimately resulting in a reduction in product quality. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an external pouring basin for molded sand, which aims to solve the problem of cumbersome installation and disassembly and difficulty in reuse in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a mold sand external pouring basin, comprising a pouring basin body, wherein a plurality of support blocks are fixedly connected to the top of the pouring basin body, and a locking block is fixedly connected between adjacent support blocks. A pouring port is slidably connected to the outer wall of the locking blocks, and a plurality of wedge blocks are fixedly connected to the outer surface of the pouring port. A locking groove is formed on the inner wall of the wedge blocks, and a plurality of support rods are fixedly connected to the outer surface of the pouring port. A pin is fixedly connected to the outer surface of the support rods, and a plurality of key grooves are formed on the inner wall of the pouring basin body. A sliding groove is connected to the inner wall of the key grooves.

[0006] As a further description of the above technical solution:

[0007] The inner wall of the sprue basin is provided with a sprue opening, and a receiving block is fixedly connected to the inner wall of the sprue opening.

[0008] As a further description of the above technical solution:

[0009] A splash guard is fixedly connected to the inner wall of the gating chamber, and a limit block is fixedly connected to the inner wall of the gating chamber.

[0010] As a further description of the above technical solution:

[0011] The inner wall of the gating basin is provided with a direct gating port, and the inner wall of the gating basin is provided with multiple vent holes.

[0012] As a further description of the above technical solution:

[0013] An outer frame is fixedly connected to the front side of the gating basin, and the inner wall of the outer frame is connected to a receiving mold.

[0014] As a further description of the above technical solution:

[0015] The inner wall of the receiving mold is fixedly connected to a refractory lining, and the inner wall of the refractory lining has a cavity.

[0016] As a further description of the above technical solution:

[0017] The inner wall of the cavity is slidably connected to a sand core, and the inner wall of the cavity is connected to the inner wall of the direct sprue.

[0018] As a further description of the above technical solution:

[0019] The inner wall of the outer frame has multiple weight-reducing grooves and mounting holes.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the initial positioning is achieved by the precise engagement of the positioning block and the wedge block in the positioning groove. The secondary locking is achieved by inserting the pin into the input groove and locking it into the sliding groove. The double fixing structure ensures a tight connection between the pouring port and the pouring basin, preventing molten metal leakage and component displacement during pouring, reducing splashing and turbulence, and significantly improving the casting quality.

[0022] 2. In this utility model, installation only requires two steps: sliding engagement and rotation locking. Disassembly can be performed in reverse for quick separation. No complicated tools are required, which greatly improves the efficiency of disassembly and assembly. The mechanical cooperation of each component is stable and durable, and it can be reused multiple times, reducing the cost of consumables. At the same time, it ensures that the pouring channel is continuously smooth, which is suitable for the high-efficiency production needs of the wet casting sand process. Attached Figure Description

[0023] Figure 1 This is a front perspective view of a mold sand external pouring basin proposed in this utility model;

[0024] Figure 2 This is a partial structural diagram of a mold sand external pouring basin proposed in this utility model;

[0025] Figure 3 for Figure 2 Enlarged view of point A in the image;

[0026] Figure 4 This is a cross-sectional view of the gating basin body of an external gating basin for molded sand proposed in this utility model.

[0027] Figure 5 This is a partial structural breakdown diagram of a mold sand external pouring basin proposed in this utility model.

[0028] Legend:

[0029] 1. Sprue bowl; 2. Support block; 3. Locking block; 4. Sprue; 5. Wedge block; 6. Locking groove; 7. Support rod; 8. Pin; 9. Sprue groove; 10. Sliding groove; 11. Sprue opening; 12. Receiving block; 13. Splash guard; 14. Limiting block; 15. Direct sprue; 16. Vent hole; 17. Outer frame; 18. Receiving mold; 19. Refractory lining; 20. Cavity; 21. Sand core; 22. Weight reduction groove; 23. Mounting hole. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see the appendix Figure 1 Appendix Figure 3 and attached Figure 5 An embodiment of this utility model provides: a mold sand external pouring basin, including a pouring basin body 1, a plurality of support blocks 2 fixedly connected to the top of the pouring basin body 1, a locking block 3 fixedly connected between adjacent support blocks 2, a pouring port 4 slidably connected to the outer wall of the locking block 3, a plurality of wedge blocks 5 fixedly connected to the outer surface of the pouring port 4, a locking groove 6 opened on the inner wall of the plurality of wedge blocks 5, a plurality of support rods 7 fixedly connected to the outer surface of the pouring port 4, a pin 8 fixedly connected to the outer surface of the plurality of support rods 7, a plurality of key grooves 9 opened on the inner wall of the pouring basin body 1, and a sliding groove 10 communicating with the inner wall of the plurality of key grooves 9.

[0032] Specifically, the pouring bowl 1 is used to receive molten metal and guide its flow to the sprue, ensuring a smooth pouring channel. Multiple support blocks 2 are evenly distributed on the top of the pouring bowl 1, providing a stable support surface for the pouring port 4. Multiple locking blocks 3 are fixed between adjacent support blocks 2, forming a fit with multiple wedge-shaped blocks 5 on the outer surface of the pouring port 4. When the pouring port 4 slides along the outer wall of the locking blocks 3, the locking grooves 6 of the wedge blocks 5 precisely engage with the locking blocks 3, achieving initial positioning of the pouring port 4 and preventing lateral displacement. Multiple support rods 7 are symmetrically arranged on the outer surface. Their outer wall fixing pins 8 can be inserted into the inlet grooves 9 on the inner wall of the pouring basin 1. While rotating, they are locked into the sliding grooves 10 to form a secondary lock, which enhances the sealing and impact resistance of the connection, prevents molten metal leakage and loosening of the pouring port 4 during pouring, and achieves quick assembly and disassembly through mechanical cooperation. At the same time, it ensures that there is no relative displacement of each component during the pouring process, reduces molten metal splashing and turbulence, provides structural support for improving the quality of castings, and can be recycled to reduce costs.

[0033] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 4 The inner wall of the sprue basin 1 is provided with a sprue 11, and a receiving block 12 is fixedly connected to the inner wall of the sprue 11. The inner wall of the sprue basin 1 is provided with a direct sprue 15, and the inner wall of the sprue basin 1 is provided with multiple vent holes 16. The inner wall of the sprue 11 is fixedly connected with a splash block 13, and a limit block 14 is fixedly connected to the inner wall of the sprue 11.

[0034] Specifically, the gating chamber 11 serves as the core for receiving and temporarily storing molten metal. Together with the receiving block 12, it guides the liquid flow smoothly toward the sprue 15, avoiding direct impact on the sand mold. The anti-splash block 13 protrudes from the inner wall of the gating chamber 11 to prevent splashing when the molten metal is poured in. The limiting block 14 limits the installation depth of the pouring port 4 to ensure precise alignment of the liquid flow channel. Multiple vent holes 16 are evenly distributed on the inner wall of the pouring bowl 1, connecting the gating chamber 11 with the outside, quickly expelling the gas released from the molten metal and the smoke and dust generated during pouring, avoiding porosity defects in the casting, while ensuring pressure balance inside the gating chamber 11, which helps the molten metal to smoothly fill the sprue 15.

[0035] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 An outer frame 17 is fixedly connected to the front side of the sprue basin 1. The inner wall of the outer frame 17 is connected to the receiving mold 18. A refractory lining 19 is fixedly connected to the inner wall of the receiving mold 18. A cavity 20 is opened on the inner wall of the refractory lining 19.

[0036] Specifically, the outer frame 17 is fixed to the front side of the sprue basin 1, providing stable support for the receiving mold 18 and ensuring the integrity of the structure after installation. The fire-resistant lining 19 of the inner wall of the receiving mold 18 has high temperature resistance and erosion resistance, which can prevent the molten metal from directly corroding the mold. The cavity 20 opened on its inner wall is precisely connected with the sprue, guiding the molten metal to flow smoothly, reducing liquid flow turbulence, and protecting the core components, thus extending the overall service life.

[0037] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 4 The inner wall of the cavity 20 is slidably connected with a sand core 21. The inner wall of the cavity 20 is connected to the inner wall of the direct sprue 15. The inner wall of the outer frame 17 is provided with multiple weight reduction grooves 22 and mounting holes 23.

[0038] Specifically, the sand core 21 is slidably connected to the inner wall of the cavity 20 and cooperates with the connected direct sprue 15 to optimize the flow path of the molten metal and improve the stability of the flow. The multiple weight-reducing grooves 22 on the inner wall of the outer frame 17 reduce the overall weight without reducing the structural strength, making it easier to transport and install. The mounting holes 23 provide interfaces for fixing the outer frame 17 to other components, ensuring the stability of the connection and further strengthening the overall structural integrity during the casting process.

[0039] Working principle: During installation, the pouring port 4 slides along the outer wall of multiple locking blocks 3 between the support blocks 2. Multiple wedge-shaped blocks 5 on its outer surface are precisely engaged with the locking blocks 3 through the locking grooves 6 to complete the initial positioning and prevent lateral displacement. Then, the pouring port 4 is rotated, and multiple support rods 7 symmetrically arranged on its outer surface drive the pins 8 to first insert into the inlet grooves 9 on the inner wall of the pouring bowl 1, and then lock into the sliding grooves 10 to form a secondary lock, which strengthens the sealing and impact resistance of the connection. During pouring, there is no relative displacement of each component, which reduces metal splashing and turbulence, ensures smooth channel, and improves casting quality. During disassembly, the reverse operation can be used to quickly separate the components, which can be recycled to reduce costs. At the same time, the pouring bowl 1 is used to receive molten metal and guide it to flow to the sprue.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mold sand external pouring basin, comprising a pouring basin body (1), characterized in that: The top of the pouring basin (1) is fixedly connected to a plurality of support blocks (2), and each of the plurality of support blocks (2) is fixedly connected to a locking block (3). The outer wall of the plurality of locking blocks (3) is slidably connected to a pouring port (4). The outer surface of the pouring port (4) is fixedly connected to a plurality of wedge blocks (5). The inner wall of the plurality of wedge blocks (5) is provided with a locking groove (6). The outer surface of the pouring port (4) is fixedly connected to a plurality of support rods (7). The outer surface of the plurality of support rods (7) is fixedly connected to a pin (8). The inner wall of the pouring basin (1) is provided with a plurality of key grooves (9). The inner wall of the plurality of key grooves (9) is connected to a sliding groove (10).

2. The external pouring basin for molded sand according to claim 1, characterized in that: The inner wall of the sprue basin (1) is provided with a sprue opening (11), and a receiving block (12) is fixedly connected to the inner wall of the sprue opening (11).

3. The external pouring basin for molded sand according to claim 2, characterized in that: The inner wall of the gating chamber (11) is fixedly connected to a splash block (13), and the inner wall of the gating chamber (11) is fixedly connected to a limit block (14).

4. The external pouring basin for molded sand according to claim 1, characterized in that: The inner wall of the gating basin (1) is provided with a direct gating port (15) and the inner wall of the gating basin (1) is provided with a plurality of vent holes (16).

5. The external pouring basin for molded sand according to claim 1, characterized in that: The front side of the gating basin (1) is fixedly connected to an outer frame (17), and the inner wall of the outer frame (17) is connected to a receiving mold (18).

6. The external pouring basin for molded sand according to claim 5, characterized in that: The inner wall of the receiving mold (18) is fixedly connected to a refractory lining (19), and the inner wall of the refractory lining (19) is provided with a cavity (20).

7. The external pouring basin for damp molding sand according to claim 6, characterized in that: The inner wall of the cavity (20) is slidably connected to a sand core (21), and the inner wall of the cavity (20) is connected to the inner wall of the direct sprue (15).

8. The external pouring basin for molded sand according to claim 5, characterized in that: The inner wall of the outer frame (17) is provided with multiple weight-reducing grooves (22), and the inner wall of the outer frame (17) is provided with mounting holes (23).

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