A multifunctional mold device for valve sand casting

Abstract

The utility model discloses a multifunctional mould device for valve sand casting relates to valve sand casting technical field. This multifunctional mould device for valve sand casting, including fixed bottom plate, positioning assembly and connecting component, is equipped with support pole on fixed bottom plate, positioning assembly is equipped with on fixed bottom plate including upper die, lower mould, positioning rod, positioning sleeve, and positioning rod and positioning sleeve are used for positioning upper die and lower mould. This multifunctional mould device for valve sand casting is set up through support pole, material plate and round column, can efficiently eject the sandstone in the lower mould inside and the forming workpiece synchronously, need not manual cleaning cavity or prying workpiece, avoids the workpiece knock, scratch caused by manual operation, guarantees the surface integrity and size accuracy of valve casting, and the blanking working hour is also greatly shortened, reduces the labor intensity of worker in high temperature, dust environment, improves the efficiency of single casting process, especially adapts batch production scene.

Description

Technical Field

[0001] This utility model relates to the field of valve sand casting technology, and in particular to a multifunctional mold device for valve sand casting. Background Technology

[0002] Sand casting is a casting method that produces castings in sand molds. Steel, iron, and most non-ferrous alloy castings can be obtained using sand casting. Because the molding materials used in sand casting are inexpensive and readily available, and the mold making is simple, it is suitable for single-piece production, batch production, and mass production of castings, and has long been a basic process in casting production.

[0003] Currently, some valve sand casting devices have difficulty unloading the sand and gravel inside the mold and the formed workpiece during use, which not only increases the time for workers to unload the material, but also increases the labor intensity of the workers. Utility Model Content

[0004] The purpose of this invention is to provide a multifunctional mold device for valve sand casting, which can solve the problem of difficulty in unloading sand and gravel inside the mold and the formed workpiece.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multifunctional mold device for valve sand casting, comprising a fixed base plate, a positioning component and a connecting component, wherein a support rod is provided on the fixed base plate; The positioning assembly is located on the fixed base plate and includes an upper mold, a lower mold, a positioning rod, and a positioning sleeve. The positioning rod and the positioning sleeve are used to position the upper mold and the lower mold. The connecting component is disposed on the fixed base plate. The connecting component includes an extension plate, a fixing block, an insert block, and a limiting block. The limiting block is used to limit the extension plate and the fixing block.

[0006] Preferably, a support rod is fixedly installed on the top of the fixed base plate, a damping support spring is fixedly installed on the top of the fixed base plate, and a placement plate is fixedly installed on the top of the damping support spring.

[0007] Preferably, the positioning assembly further includes a side plate, a top plate, a circular column, and a square plate. Side plates are fixedly installed on both sides of the upper and lower molds. A positioning rod is fixedly installed at the bottom of the upper side plate of the upper mold, and a positioning sleeve is fixedly installed at the top of the upper side plate of the lower mold. The positioning sleeve has a positioning hole inside which the positioning rod can move, and one end of the positioning rod extends into the positioning hole on the positioning sleeve.

[0008] Preferably, a square plate is fixedly installed at the bottom of the lower mold, a top plate is slidably installed on the inner wall of the lower mold, a circular column is fixedly installed at the bottom of the top plate, and a hole is provided at the bottom of the lower mold for the circular column to move.

[0009] Preferably, the connecting assembly further includes a damping limiting spring, a connecting plate, and a pull slide rod. An extension plate is fixedly installed on the front side of the upper mold, and an insert block is fixedly installed on the bottom of the extension plate. A fixing block is fixedly installed on the front side of the lower mold. The fixing block has an installation groove inside for the insert block to move. The insert block is located in the installation groove on the fixing block. The fixing block also has a movable groove inside. A damping limiting spring is fixedly installed on one inner wall of the movable groove. A connecting plate is fixedly installed on one side of the damping limiting spring. A limiting block is fixedly installed on one side of the connecting plate. A pull slide rod is fixedly installed on the other side of the connecting plate. One end of the pull slide rod extends to one side of the fixing block and is fixedly installed with a handle. The pull slide rod and the fixing block are slidably installed.

[0010] Preferably, the insert block has a limiting hole inside, which allows the limiting block to move, and the limiting block is located inside the limiting hole on the insert block.

[0011] Preferably, the top of the placement plate has a square groove for the square plate to move, and the inside of the circular column has a support groove for the support rod to move.

[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows: This multi-functional mold device for valve sand casting, through the setting of support rods, top plates, and circular columns, can efficiently eject the sand and gravel inside the lower mold simultaneously with the formed workpiece, eliminating the need for manual cleaning of the cavity or prying of the workpiece. This avoids workpiece bumps and scratches caused by manual operation, ensuring the surface integrity and dimensional accuracy of the valve casting, and significantly shortens the blanking time, reducing the labor intensity of workers in high-temperature and dusty environments, and improving the efficiency of a single casting process. It is especially suitable for batch production scenarios. At the same time, the precise cooperation of the positioning rod and positioning sleeve can provide a reliable positioning benchmark when the upper and lower molds are installed and closed, ensuring precise alignment of the upper and lower molds, avoiding defects such as uneven wall thickness and contour deformation of the casting caused by mold closing deviations, significantly improving the production qualification rate of valve castings, and reducing... Minimizing material waste and rework costs caused by mold misalignment lays the foundation for high-quality casting production. Furthermore, the use of limit blocks enables rapid connection and unlocking of the upper and lower molds. The connection method is simple and intuitive, requiring no complex tools or specialized skills to assemble and disassemble the molds, shortening mold debugging and replacement time and reducing manual operation difficulty. Combining three core functions—ejection and unloading, precise positioning, and convenient connection—the device integrates multiple practical features, completing the critical processes from mold closing and casting to unloading without additional auxiliary equipment. This reduces equipment investment costs, simplifies production processes, and adapts to the sand casting needs of different valve specifications, significantly improving the device's practicality and applicability. It fully meets the multiple requirements of efficient, precise, and convenient valve sand casting production, providing reliable support for large-scale, high-quality valve casting. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a perspective view of the present utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a cross-sectional view of the fixing block of this utility model.

[0014] Reference numerals: 1. Fixed base plate; 2. Support rod; 3. Damped support spring; 4. Placement plate; 5. Positioning assembly; 501. Upper mold; 502. Lower mold; 503. Side plate; 504. Positioning rod; 505. Positioning sleeve; 506. Top plate; 507. Circular column; 508. Square plate; 6. Connecting assembly; 601. Extension plate; 602. Fixed block; 603. Insertion block; 604. Damped limit spring; 605. Connecting plate; 606. Limiting block; 607. Pulling slide rod. Detailed Implementation

[0015] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0016] Please see Figure 1-3 This utility model provides a technical solution: a multifunctional mold device for valve sand casting, including a fixed base plate 1, a positioning component 5, and a connecting component 6. The fixed base plate 1 is provided with a support rod 2; the positioning component 5 is provided on the fixed base plate 1 and includes an upper mold 501, a lower mold 502, a positioning rod 504, and a positioning sleeve 505. The positioning rod 504 and the positioning sleeve 505 are used to position the upper mold 501 and the lower mold 502; the connecting component 6 is provided on the fixed base plate 1 and includes an extension plate 601, a fixing block 602, an insert block 603, and a limiting block 606. The limiting block 606 is used to limit the extension plate 601 and the fixing block 602.

[0017] Furthermore, a support rod 2 is fixedly installed on the top of the fixed base plate 1, a damping support spring 3 is fixedly installed on the top of the fixed base plate 1, and a placement plate 4 is fixedly installed on the top of the damping support spring 3. The positioning assembly 5 also includes a side plate 503, a top plate 506, a circular column 507, and a square plate 508. Side plates 503 are fixedly installed on both sides of the upper mold 501 and the lower mold 502. A positioning rod 504 is fixedly installed at the bottom of the upper side plate 503 of the upper mold 501. A positioning sleeve 505 is fixedly installed on the top of the upper side plate 503 of the lower mold 502. The positioning sleeve 505 has a positioning hole inside which the positioning rod 504 can move. One end of the positioning rod 504 extends into the positioning hole on the positioning sleeve 505. A square plate is fixedly installed at the bottom of the lower mold 502. 508. A top plate 506 is slidably mounted on the inner wall of the lower mold 502. A circular column 507 is fixedly mounted on the bottom of the top plate 506. A hole is provided at the bottom of the lower mold 502 for the circular column 507 to move. The connecting assembly 6 also includes a damping limit spring 604, a connecting plate 605, and a pulling slide rod 607. An extension plate 601 is fixedly mounted on the front side of the upper mold 501. An insert block 603 is fixedly mounted on the bottom of the extension plate 601. A fixing block 602 is fixedly mounted on the front side of the lower mold 502. An installation groove for the insert block 603 to move is provided inside the fixing block 602. The insert block 603 is located in the installation groove on the fixing block 602. A movable groove is also provided inside the fixing block 602. A damping limit spring 604 is fixedly mounted on the inner wall of one side of the movable groove. A connecting plate 605 is fixedly installed on one side of the damping limit spring 604. A limit block 606 is fixedly installed on one side of the connecting plate 605, and a pull slide rod 607 is fixedly installed on the other side of the connecting plate 605. One end of the pull slide rod 607 extends to one side of the fixed block 602 and is fixedly fitted with a handle. The pull slide rod 607 and the fixed block 602 are slidably installed. A limit hole is provided inside the insert block 603 for the limit block 606 to move. The limit block 606 is located in the limit hole on the insert block 603. A square groove is provided on the top of the placement plate 4 for the square plate 508 to move. A support groove is provided inside the circular column 507 for the support rod 2 to move. The arrangement of the support rod 2, the top plate 506, and the circular column 507 can efficiently move the lower mold 502. The sand and gravel are ejected simultaneously with the formed workpiece, eliminating the need for manual cleaning of the cavity or prying of the workpiece. This avoids workpiece bumps and scratches caused by manual operation, ensuring the surface integrity and dimensional accuracy of the valve casting. It also significantly shortens the blanking time, reduces the labor intensity of workers in high-temperature and dusty environments, and improves the efficiency of a single casting process, making it particularly suitable for batch production scenarios. Furthermore, the precise cooperation between the positioning rod 504 and the positioning sleeve 505 provides a reliable positioning benchmark when the upper mold 501 and lower mold 502 are installed and closed, ensuring precise alignment of the upper and lower molds. This avoids defects such as uneven wall thickness and contour deformation caused by mold closing deviations, significantly improving the production qualification rate of valve castings and reducing material waste and rework costs caused by mold misalignment, laying the foundation for high-quality casting production.Furthermore, the limit block 606 enables rapid connection and unlocking of the upper mold 501 and lower mold 502. The connection method is simple and intuitive, requiring no complex tools or professional skills to assemble and disassemble the mold, shortening mold debugging and changeover time and reducing manual operation difficulty. Combining the three core functions of ejection and unloading, precise positioning, and convenient connection, the device integrates multiple practical features. It can complete the key processes from mold closing and casting to unloading without additional auxiliary equipment, reducing equipment investment costs and simplifying production procedures. It adapts to the sand casting needs of valves of different specifications, significantly improving the practicality and applicability of the device. It fully meets the multiple requirements of efficient, precise, and convenient valve sand casting production, providing reliable support for large-scale, high-quality valve casting.

[0018] Working principle: When the mold is closed, the positioning rod 504 is inserted into the positioning hole on the positioning sleeve 505. Then, the pulling slide rod 607 is pulled to move the connecting plate 605 and the limiting block 606. Then, the insert block 603 is inserted into the mounting groove on the fixing block 602. Then, the pulling slide rod 607 is released and the damping limiting spring 604 rebounds, allowing the limiting block 606 to be inserted into the limiting groove on the insert block 603, thus completing the mold closing of the upper mold 501 and the lower mold 502. When unloading, the lower mold 502 is placed on the placement plate 4, and one end of the support rod 2 is located in the support groove on the circular column 507. Then, after the upper mold 501 is separated, the lower mold 502 is pressed down to move the lower mold 502 downward. The support rod 2 can support the circular column 507 and the ejector plate 506, thereby ejecting the sand and workpiece from the inside of the lower mold 502.

[0019] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A multifunctional mold device for valve sand casting, characterized in that, include: A fixed base plate (1) is provided with a support rod (2); The positioning component (5) is located on the fixed base plate (1). The positioning component (5) includes an upper mold (501), a lower mold (502), a positioning rod (504), and a positioning sleeve (505). The positioning rod (504) and the positioning sleeve (505) are used to position the upper mold (501) and the lower mold (502). The connecting component (6) is disposed on the fixed base plate (1). The connecting component (6) includes an extension plate (601), a fixing block (602), an insert block (603), and a limiting block (606). The limiting block (606) is used to limit the extension plate (601) and the fixing block (602).

2. The multifunctional mold device for valve sand casting according to claim 1, characterized in that: A support rod (2) is fixedly installed on the top of the fixed base plate (1), a damping support spring (3) is fixedly installed on the top of the fixed base plate (1), and a placement plate (4) is fixedly installed on the top of the damping support spring (3).

3. A multifunctional mold device for valve sand casting according to claim 2, characterized in that: The positioning assembly (5) also includes a side plate (503), a top plate (506), a circular column (507) and a square plate (508). The upper mold (501) and the lower mold (502) are both fixedly installed with side plates (503). The bottom of the upper side plate (503) of the upper mold (501) is fixedly installed with a positioning rod (504). The top of the upper side plate (503) of the lower mold (502) is fixedly installed with a positioning sleeve (505). The positioning sleeve (505) has a positioning hole inside which the positioning rod (504) can move. One end of the positioning rod (504) extends into the positioning hole on the positioning sleeve (505).

4. A multifunctional mold device for valve sand casting according to claim 3, characterized in that: A square plate (508) is fixedly installed at the bottom of the lower mold (502), and a top plate (506) is slidably installed on the inner wall of the lower mold (502). A circular column (507) is fixedly installed at the bottom of the top plate (506), and a hole is provided at the bottom of the lower mold (502) for the circular column (507) to move.

5. A multifunctional mold device for valve sand casting according to claim 4, characterized in that: The connecting assembly (6) further includes a damping limiting spring (604), a connecting plate (605), and a pulling slide rod (607). An extension plate (601) is fixedly installed on the front side of the upper mold (501), and an insert block (603) is fixedly installed on the bottom of the extension plate (601). A fixing block (602) is fixedly installed on the front side of the lower mold (502). The fixing block (602) has an internal mounting groove for the insert block (603) to move. The insert block (603) is located in the mounting groove on the fixing block (602). The interior of the device is also provided with a movable groove. A damping limit spring (604) is fixedly installed on the inner wall of one side of the movable groove. A connecting plate (605) is fixedly installed on one side of the damping limit spring (604). A limit block (606) is fixedly installed on one side of the connecting plate (605). A pull rod (607) is fixedly installed on the other side of the connecting plate (605). One end of the pull rod (607) extends to one side of the fixed block (602) and is fixedly installed with a handle. The pull rod (607) and the fixed block (602) are slidably installed.

6. A multifunctional mold device for valve sand casting according to claim 5, characterized in that: The insert (603) has a limiting hole inside which the limiting block (606) can move. The limiting block (606) is located inside the limiting hole on the insert (603).

7. A multifunctional mold device for valve sand casting according to claim 6, characterized in that: The top of the placement plate (4) is provided with a square groove for the square plate (508) to move, and the inside of the circular column (507) is provided with a support groove for the support rod (2) to move.

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