Molding sand casting tool

Abstract

A molding sand casting tool comprises a molding sand mold, a bottom supporting platform is arranged at the bottom of the molding sand mold, a top positioning platform is arranged at the top of the molding sand mold, and a plurality of connecting pieces are arranged between the bottom supporting platform and the top positioning platform. And a lead-in channel is arranged at the top of the molding sand mold. The bottom supporting platform and the top positioning platform are adopted to form an integral fixing structure, the molding sand mold is fixed in the integral fixing structure, molten metal is guided into the integral fixing structure through the guide-in channel, molding of the molding sand mold can be completed, the purpose of casting molding is finally achieved, and the integral structure is good in stability and safety.

Description

Technical Field

[0001] This application relates to a tooling for molding sand casting. Background Technology

[0002] Casting is a metal heating process that involves pouring molten metal into a casting cavity that conforms to the shape of the part, allowing it to cool and solidify to obtain the part or blank. Current casting methods mainly include ordinary sand casting and special casting. Ordinary sand casting has a wider range of applications, lower costs, and the sand used in the molds can be reused. However, when using existing molding sand for material casting, the high temperature of the casting metal causes significant pressure on the fasteners during pouring, which can easily lead to deformation of the molding sand mold and create operational risks. Furthermore, for small part casting, the current practice of using a single mold often results in waste and low casting efficiency. Utility Model Content

[0003] To address the aforementioned problems, this application proposes a sand casting fixture, including a sand mold, a bottom support platform at the bottom of the sand mold, a top positioning platform at the top of the sand mold, and several connecting components between the bottom support platform and the top positioning platform; an inlet channel is provided at the top of the sand mold. This application uses the bottom support platform and the top positioning platform to form an integral fixed structure, fixing the sand mold within it, and using the inlet channel to introduce molten metal, thus completing the molding process within the sand mold and ultimately achieving the casting purpose. The overall structure exhibits good stability and safety.

[0004] Preferably, an inlet funnel is provided at the top of the inlet channel; the inlet funnel is a hollow, inverted frustum shape.

[0005] Preferably, the bottom support platform includes a bottom support plate, on which a plurality of bottom hanging rings are provided;

[0006] The top positioning platform includes a ring plate arranged in a ring shape. A snap-fit ​​plate is provided on the outer side of the ring plate at the position corresponding to the bottom hanging ring. At least one outward-facing strip hole is provided on the outward-facing side of the snap-fit ​​plate.

[0007] Preferably, the connector includes a hook that engages with the bottom hanging ring, and a connecting rod is provided on the hook. The connecting rod passes through an outward-facing slotted hole and is mounted on a snap-fit ​​plate. A pressing force block is connected to the connecting rod above the snap-fit ​​plate. The connector of this application uses a hook for fixing at the bottom, while the top uses a pressing force block composed of a locking nut, rectangular plates, and circular plates to form an overall pressing and fixing structure. This structure provides good stability, a good locking effect, and prevents detachment.

[0008] Preferably, the pressing force block includes a rectangular plate that abuts against the snap-fit ​​plate, a circular plate is disposed on the rectangular plate, the rectangular plate and the circular plate are sleeved on the connecting rod, and a threaded locking nut is disposed on the connecting rod above the circular plate; the rectangular plate and the circular plate are integrally formed.

[0009] Preferably, the molding sand mold includes a plurality of stacked mold units; the mold unit includes a lower mold and an upper mold that cooperates with the lower mold, the upper mold is provided with an upper filling hole, and the lower mold is provided with a lower exit hole that corresponds to the upper mold of the lower mold unit; the lower exit hole at the bottom of the lower mold at the bottom layer is closed.

[0010] Preferably, side handles are provided on both sides of the upper mold and the lower mold.

[0011] Preferably, an upper protruding rectangular frame is provided above the upper mold, and a lower protruding rectangular frame is provided below the lower mold. The upper protruding rectangular frame of the upper mold at the top abuts against the annular plate, and the lower protruding rectangular frame of the lower mold at the bottom is supported by the bottom support plate. The upper protruding rectangular frames of the upper mold and the lower protruding rectangular frames of the lower mold abut against each other. In this application, the upper and lower molds use rectangular frames as force-bearing parts to prevent structural failure and thus ensure the reliability of the entire structure.

[0012] This application can bring the following beneficial effects:

[0013] 1. This application adopts a bottom support platform and a top positioning platform to form an integral fixed structure, in which the molding sand mold is fixed and the molten metal is introduced through the inlet channel, which can complete the molding in the molding sand mold and finally achieve the purpose of casting. The overall structure has good stability and safety.

[0014] 2. The bottom of the connector in this application is fixed by a hook, while the top is a pressing force block composed of a locking nut, a rectangular plate, and a circular plate, forming an overall pressing and fixing structure. The fixing structure has good stability and locking effect, and will not detach.

[0015] 3. The upper and lower molds of this application use rectangular frames as the force-bearing parts of the molds to avoid structural failure, thereby ensuring the reliability of the entire structure. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1This is a schematic diagram of the structure of this application.

[0018] Figure 2 This is a side view of the present application. Detailed Implementation

[0019] To clearly illustrate the technical features of this solution, the following detailed description, in conjunction with the accompanying drawings, will be provided.

[0020] In the first embodiment, such as Figure 1 As shown, a molding sand casting fixture includes a molding sand mold 1, a bottom support platform 2 at the bottom of the molding sand mold 1, a top positioning platform 3 at the top of the molding sand mold 1, and a plurality of connecting parts 4 between the bottom support platform 2 and the top positioning platform 3; and an inlet channel 5 at the top of the molding sand mold 1.

[0021] In use, the molding sand mold 1 is placed on the bottom support platform 2, and the top positioning platform 3 is used to compact it. Then, the bottom support platform 2 and the top positioning platform 3 are connected by the connector 4. Molten metal is then introduced through the inlet channel 5, and the molding sand mold 1 can be used for casting.

[0022] In the second embodiment, as Figure 1-2 As shown, a molding sand casting fixture includes a molding sand mold 1, a bottom support platform 2 at the bottom of the molding sand mold 1, a top positioning platform 3 at the top of the molding sand mold 1, and a plurality of connecting parts 4 between the bottom support platform 2 and the top positioning platform 3; and an inlet channel 5 at the top of the molding sand mold 1.

[0023] An inlet funnel 6 is provided at the top of the inlet channel 5; the inlet funnel 6 is hollow and inverted in the shape of a frustum. The bottom support platform 2 includes a bottom support plate 7, on which several bottom hanging rings 8 are provided; the top positioning platform 3 includes a ring-shaped plate 9, on which a snap-fit ​​plate 10 is provided on the outer side of the ring plate 9 corresponding to the position of the bottom hanging rings 8, and at least one outward-facing strip hole 11 is provided on the outward-facing side of the snap-fit ​​plate 10. The connector 4 includes a hook 12 that is attached to the bottom hanging rings 8, and a connecting rod 13 is provided on the hook 12. The connecting rod 13 passes through the outward-facing strip hole 11 and is provided through the snap-fit ​​plate 10. A pressing force block 14 is connected to the connecting rod 13 above the snap-fit ​​plate 10. The pressing force block 14 includes a rectangular plate 15 that abuts against the snap-fit ​​plate 10, and a circular plate 16 is provided on the rectangular plate 15. The rectangular plate 15 and the circular plate 16 are sleeved on the connecting rod 13. A threaded locking nut 17 is provided on the connecting rod 13 above the circular plate 16. The rectangular plate 15 and the circular plate 16 are integrally formed.

[0024] The molding sand mold 1 includes several stacked mold units 18. Each mold unit 18 includes a lower mold 19 and an upper mold 20 that mates with the lower mold 19. The upper mold 20 has an upper filling hole 21, and the lower mold 19 has a lower outlet hole 22 that mates with the upper mold 20 of the lower mold unit 18. The lower outlet hole 22 at the bottom of the lower mold 19 is closed. Side handles 23 are provided on both sides of the upper mold 20 and the lower mold 19. An upper protruding rectangular frame 24 is provided above the upper mold 20, and a lower protruding rectangular frame 25 is provided below the lower mold 19. The upper protruding rectangular frame 24 of the upper mold 20 at the top abuts against the annular plate 9, and the lower protruding rectangular frame 25 of the lower mold 19 at the bottom is supported by the bottom support plate 7. The upper protruding rectangular frame 24 of the upper mold 20 and the lower protruding rectangular frame 25 of the lower mold 19 abut against each other.

[0025] In use, the molding sand mold 1 is placed on the bottom support platform 2, and the upper part is compacted by the top positioning platform 3. Specifically, the lower protruding rectangular frame 25 of the lower mold 19 at the bottom abuts against the bottom support platform 2, and then the upper protruding rectangular frame 24 of the upper mold 20 at the top abuts against the top positioning platform 3. Then, the bottom support platform 2 and the top positioning platform 3 are connected by the connector 4, that is, the bottom hanging ring 8 is hung by the hook 12. The top is a pressing force block 14 composed of a locking nut, a rectangular plate 15, and a circular plate to obtain the overall pressing and fixing structure. Finally, molten metal is introduced through the inlet channel, and the molding sand mold 1 can be used for casting.

[0026] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A molding sand casting fixture, characterized in that: The mold includes a molding sand mold, a bottom support platform at the bottom of the molding sand mold, a top positioning platform at the top of the molding sand mold, and several connecting parts between the bottom support platform and the top positioning platform; an inlet channel is provided at the top of the molding sand mold. The bottom support platform includes a bottom support plate, and a plurality of bottom hanging rings are provided on the bottom support plate; The top positioning platform includes a ring plate arranged in a ring shape. A snap-fit ​​plate is provided on the outer side of the ring plate at the position corresponding to the bottom hanging ring. At least one outward-facing strip hole is provided on the outward-facing side of the snap-fit ​​plate.

2. The molding sand casting fixture as described in claim 1, characterized in that: An inlet funnel is provided at the top of the inlet channel; the inlet funnel is a hollow, inverted frustum shape.

3. The molding sand casting fixture as described in claim 1, characterized in that: The connector includes a hook that is attached to the bottom hanging ring, and a connecting rod is provided on the hook. The connecting rod passes through the snap-fit ​​plate through an outward strip hole, and a pressing force block is connected to the connecting rod above the snap-fit ​​plate.

4. The molding sand casting fixture as described in claim 3, characterized in that: The pressing force block includes a rectangular plate that abuts against the snap-fit ​​plate, and a circular plate is set on the rectangular plate. The rectangular plate and the circular plate are sleeved on the connecting rod. A threaded locking nut is set on the connecting rod above the circular plate. The rectangular plate and the circular plate are integrally formed.

5. The molding sand casting fixture as described in claim 1, characterized in that: The molding sand mold includes several stacked mold units; each mold unit includes a lower mold and an upper mold that cooperates with the lower mold. The upper mold is provided with an upper filling hole, and the lower mold is provided with a lower outlet hole that connects to the upper mold of the lower mold unit. The lower outlet hole at the bottom of the lower mold at the bottom layer is closed.

6. The molding sand casting fixture as described in claim 5, characterized in that: Side handles are provided on both sides of the upper and lower molds.

7. The molding sand casting fixture as described in claim 5, characterized in that: The upper mold has an upper protruding rectangular frame above it, and the lower mold has a lower protruding rectangular frame below it. The upper protruding rectangular frame of the upper mold at the top abuts against the annular plate, and the lower protruding rectangular frame of the lower mold at the bottom is supported by the bottom support plate. The upper protruding rectangular frames of the upper mold and the lower protruding rectangular frames of the lower mold abut against each other.

Images