Alloy precision casting mold

Abstract

The utility model discloses an alloy precision casting mould, it includes lower mould, upper mould and two two -way threaded rods, lower mould and upper mould are located between two two -way threaded rods, and the both ends of lower mould and upper mould are connected with two two -way threaded rods respectively, and the middle part of lower mould and upper mould all is provided with two insertion slot, and insertion slot is set up through lower mould and upper mould, and the inside of insertion slot all swingly inserts and has the stripping push rod, and the both ends of two stripping push rods on lower mould and upper mould all are fixedly installed with extrusion board, and the surface of stripping push rod located lower mould and upper mould outside all is sleeved with return spring, the alloy precision casting mould has two -way synchronous opening and closing mould adjusting structure and upper and lower automatic stripping structure, and the performance can satisfy the use demand.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology, specifically an alloy precision casting mold. Background Technology

[0002] Alloy precision casting molds refer to molds used in investment casting (commonly known as lost-wax casting). They are key tools for manufacturing high-precision, complex-shaped metal parts. The molds themselves are not made directly from metal alloys, but are formed by coating wax or ceramic prototypes with high-temperature resistant special ceramic materials (such as aluminum silicate, zircon sand, etc.) layer by layer, and then drying and firing them to form a strong and durable ceramic shell. During the casting process, these ceramic shells will withstand the pouring of molten metal at thousands of degrees Celsius, so the materials have extremely high requirements for high temperature resistance, thermal shock resistance, chemical stability and mechanical strength.

[0003] The existing authorized patent (publication number: CN208341646U) discloses an alloy precision casting mold. The mold model only uses an excitation magnet, spring, and steel plate to achieve mold opening and closing. This mold opening and closing operation lacks reliability and stability. At the same time, the demolding operation is carried out by the ejector pin on the lower mold. If the model sticks to the upper mold, the demolding operation cannot be performed. Therefore, in order to address the above problems, improvements are needed. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: an alloy precision casting mold, comprising a lower mold, an upper mold, and two bidirectional threaded rods. The lower mold and the upper mold are located between the two bidirectional threaded rods, and both ends of the lower mold and the upper mold are respectively connected to the two bidirectional threaded rods. Two slots are opened in the middle of the lower mold and the upper mold, and the slots are set through the lower mold and the upper mold. A demolding push rod is movably inserted into the interior of each slot. An extrusion plate is fixedly installed between one end of the two demolding push rods located on the lower mold and the upper mold. A return spring is sleeved on the outer surface of the demolding push rod located on the lower mold and the upper mold.

[0005] Preferably, a base is provided below the lower mold and a top plate is provided above the upper mold. Four sliding rods are fixedly installed between the base and the top plate. Connecting blocks are fixedly installed at both ends of the lower mold and the upper mold. Sliding sleeves are fixedly installed at both ends of one side of the connecting blocks. The sliding sleeves are slidably sleeved on the surface of the sliding rods. Two bidirectional threaded rods are symmetrically rotated and installed between the base and the top plate. Two connecting blocks at the same end of the lower mold and the upper mold are symmetrically threaded onto the same bidirectional threaded rod.

[0006] Preferably, the tops of the two bidirectional threaded rods extend movably through to the top of the top plate and are fixedly connected to large bevel gears. A dual-output shaft motor is installed on the top of the top plate, and small bevel gears are fixedly installed on both output ends of the dual-output shaft motor. The two small bevel gears are respectively meshed with the two large bevel gears.

[0007] Preferably, a fixed extrusion block is fixedly installed at the center of the bottom of the top plate, and the fixed extrusion block is located directly above the extrusion plate on the upper mold.

[0008] Preferably, the upper mold has two symmetrical pouring gates, the upper part of the two pouring gates is a flared mouth, and the top of the two flared mouths is fixedly installed with an anti-overflow retaining ring located on the top of the upper mold.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: This alloy precision casting mold has a bidirectional synchronous mold opening and closing adjustment structure and an upper and lower automatic demolding structure. The bidirectional synchronous mold opening and closing adjustment structure can effectively ensure the stability and firmness of the mold opening and closing, while the upper and lower automatic demolding structure can stably and effectively carry out demolding operations, thereby effectively improving the practicality of the mold. By activating the dual-output shaft motor, two small bevel gears rotate, which in turn drive two large bevel gears to rotate. These large bevel gears, in turn, drive two bidirectional threaded rods to rotate. The rotation of these two bidirectional threaded rods, through four connecting blocks, causes the lower and upper molds to move away from each other, thus lowering the lower mold and raising the upper mold to perform the mold opening operation. This mold opening operation is stable and reliable. Simultaneously, the rotation of the two bidirectional threaded rods ensures stable and reliable mold closing between the lower and upper molds. When the lower mold moves down and the upper mold moves up to open the mold, the lower mold moves down and causes the extrusion plate on it to contact the base, so that the base is squeezed and cannot move. The base, which is limited, moves out of the slot through the demolding push rod and compresses the return spring. As a result, the two demolding push rods move into the lower mold. When the casting model sticks to the inside of the lower mold, the demolding operation can be effectively carried out through the demolding push rods. At the same time, the upper mold moves upward and comes into contact with the fixed extrusion block, which is then squeezed, causing the two demolding push rods on it to move downward. When the cast model sticks to the upper mold, the demolding operation can be effectively carried out through the demolding push rods. Attached Figure Description

[0010] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0011] In the attached diagram: Figure 1This is a front view structural diagram of the alloy precision casting mold of this utility model; Figure 2 This utility model Figure 1 A schematic diagram of the cross-sectional structure; Figure 3 This utility model Figure 2 A partial structural diagram; In the diagram: 1. Lower mold; 2. Upper mold; 3. Bidirectional threaded rod; 4. Slot; 5. Demolding push rod; 6. Extrusion plate; 7. Return spring; 8. Base; 9. Top plate; 10. Slide rod; 11. Connecting block; 12. Sliding sleeve; 14. Large bevel gear; 15. Dual output shaft motor; 16. Small bevel gear; 17. Fixed extrusion block; 18. Sprue; 19. Anti-overflow retaining ring. Detailed Implementation

[0012] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0013] Depend on Figures 1 to 3 The present invention includes a lower mold 1, an upper mold 2, and two bidirectional threaded rods 3. The lower mold 1 is a concave mold structure, and the upper mold 2 is a convex mold structure. The lower mold 1 and the upper mold 2 are matched and form a mold cavity through the concave mold structure and the convex mold structure. Two symmetrical pouring gates 18 are opened on the upper mold 2. The bottom of the pouring gates 18 are connected to the mold cavity. The upper part of the two pouring gates 18 is a flared mouth. The top of the two flared mouths is fixedly installed with an anti-overflow retaining ring 19 located on the top of the upper mold 2, so as to effectively carry out the pouring operation.

[0014] The lower mold 1 and the upper mold 2 are located between two bidirectional threaded rods 3, and both ends of the lower mold 1 and the upper mold 2 are connected to the two bidirectional threaded rods 3 respectively, so as to effectively perform mold opening and closing operations. Two slots 4 are opened in the middle of the lower mold 1 and the upper mold 2. The slots 4 are set through the lower mold 1 and the upper mold 2, and the demolding push rods 5 are movably inserted into the inside of the slots 4. The slots 4 and demolding push rods 5 on the lower mold 1 have a T-shaped structure, and the slots 4 and demolding push rods 5 on the upper mold 2 have an inverted T-shaped structure. An extrusion plate 6 is fixedly installed between one end of the two demolding push rods 5 on the lower mold 1 and the upper mold 2. A return spring 7 is sleeved on the outer surface of the demolding push rods 5 on the lower mold 1 and the upper mold 2. The two ends of the return spring 7 on the lower mold 1 are fixedly connected to the extrusion plate 6 and the lower mold 1 respectively, and the two ends of the return spring 7 on the upper mold 2 are fixedly connected to the extrusion plate 6 and the upper mold 2 respectively.

[0015] A base 8 is provided below the lower mold 1, and a top plate 9 is provided above the upper mold 2. Four sliding rods 10 are fixedly installed between the base 8 and the top plate 9. Connecting blocks 11 are fixedly installed at both ends of the lower mold 1 and the upper mold 2. Sliding sleeves 12 are fixedly installed at both ends of one side of the connecting blocks 11. The sliding sleeves 12 are slidably sleeved on the surface of the sliding rods 10. Two bidirectional threaded rods 3 are symmetrically rotated and installed between the base 8 and the top plate 9. Two connecting blocks 11 at the same end of the lower mold 1 and the upper mold 2 are symmetrically threaded onto the same bidirectional threaded rod 3. The tops of the two bidirectional threaded rods 3 extend movably through to the top of the top plate 9 and are fixedly connected to large bevel gears 14. A dual-output shaft motor 15 is installed on the top of the top plate 9. Small bevel gears 16 are fixedly installed at both output ends of the dual-output shaft motor 15. The two small bevel gears 16 are respectively meshed with the two large bevel gears 14, thereby enabling effective adjustment. Specifically, by starting the dual-output shaft motor 15, the two small bevel gears 16 are rotated. The rotation of the two small bevel gears 16 drives the two large bevel gears 14 to rotate. The rotation of the two large bevel gears 14 drives the two bidirectional threaded rods 3 to rotate. The rotation of the two bidirectional threaded rods 3, through the four connecting blocks 11, causes the lower mold 1 and the upper mold 2 to move away from each other, thereby causing the lower mold 1 to move down and the upper mold 2 to move up, thus performing the mold opening operation. This mold opening operation is stable and reliable. At the same time, the rotation of the two bidirectional threaded rods 3 enables the lower mold 1 and the upper mold 2 to close stably and reliably.

[0016] A fixed extrusion block 17 is fixedly installed in the middle of the bottom of the top plate 9. The fixed extrusion block 17 is located directly above the extrusion plate 6 on the upper mold 2, so that the extrusion demolding operation can be effectively carried out. Specifically, when the lower mold 1 moves down and the upper mold 2 moves up to open the mold, the lower mold 1 will cause the extrusion plate 6 on it to contact the base 8, so that the base 8 is squeezed and cannot move. The base 8, which is limited, moves out of the slot 4 through the demolding push rod 5 and compresses the return spring 7. Thus, the two demolding push rods 5 will move into the lower mold 1. When the cast model sticks to the inside of the lower mold 1, the demolding operation can be effectively carried out through the demolding push rods 5. At the same time, the upper mold 2 moves upward and comes into contact with the fixed extrusion block 17 and is extruded, causing the two demolding push rods 5 on it to move downward. When the cast model sticks to the upper mold 2, the demolding operation can be effectively carried out through the demolding push rods 5.

[0017] This alloy precision casting mold features a bidirectional synchronous mold opening and closing adjustment structure and an automatic demolding structure. The bidirectional synchronous mold opening and closing adjustment structure effectively ensures the stability and firmness of the mold opening and closing, while the automatic demolding structure enables stable and effective demolding operations, thereby significantly improving the practicality of the mold. At the same time, this casting mold has a simple structural design, is easy to use, and operates stably and reliably, and its performance meets the application requirements.

Claims

1. An alloy precision casting mold, comprising a lower mold (1), an upper mold (2), and two bidirectional threaded rods (3), characterized in that: The lower mold (1) and the upper mold (2) are located between two bidirectional threaded rods (3), and the two ends of the lower mold (1) and the upper mold (2) are respectively connected to the two bidirectional threaded rods (3). Two slots (4) are opened in the middle of the lower mold (1) and the upper mold (2). The slots (4) are set through the lower mold (1) and the upper mold (2), and the demolding push rods (5) are movably inserted into the slots (4). Extrusion plates (6) are fixedly installed between one end of the two demolding push rods (5) on the lower mold (1) and the upper mold (2). The surfaces of the demolding push rods (5) located on the outside of the lower mold (1) and the upper mold (2) are fitted with return springs (7).

2. The alloy precision casting mold according to claim 1, characterized in that: The lower mold (1) is provided with a base (8) below it and a top plate (9) is provided above the upper mold (2). Four sliding rods (10) are fixedly installed between the base (8) and the top plate (9). Connecting blocks (11) are fixedly installed at both ends of the lower mold (1) and the upper mold (2). Sliding sleeves (12) are fixedly installed at both ends of one side of the connecting block (11). The sliding sleeves (12) are slidably sleeved on the surface of the sliding rods (10). Two bidirectional threaded rods (3) are symmetrically rotated and installed between the base (8) and the top plate (9). Two connecting blocks (11) at the same end of the lower mold (1) and the upper mold (2) are symmetrically threaded onto the same bidirectional threaded rod (3).

3. The alloy precision casting mold according to claim 2, characterized in that: The tops of the two bidirectional threaded rods (3) extend movably through to the top plate (9) and are fixedly connected to a large bevel gear (14). A dual-output shaft motor (15) is installed on the top of the top plate (9). Small bevel gears (16) are fixedly installed on both output ends of the dual-output shaft motor (15). The two small bevel gears (16) are respectively meshed with the two large bevel gears (14).

4. The alloy precision casting mold according to claim 3, characterized in that: A fixed extrusion block (17) is fixedly installed in the middle of the bottom of the top plate (9), and the fixed extrusion block (17) is located directly above the extrusion plate (6) on the upper mold (2).

5. The alloy precision casting mold according to claim 1, characterized in that: The upper mold (2) has two symmetrical pouring ports (18). The upper part of the two pouring ports (18) is a flared mouth. The top of the two flared mouths is fixedly installed with an anti-overflow baffle (19) located on the top of the upper mold (2).

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