A casting sand mold for machine body core
By designing a body core casting sand mold containing a pump and exhaust pipe, the air pore problem in sand mold casting is solved, and efficient casting and improving the quality of finished products are achieved.
Patent Information
- Application Number
- CN202421489186.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-06-27
AI Technical Summary
During the sand mold casting process, more gas is easily generated, resulting in a large number of pores on the outside of the finished product, affecting the quality of the finished product.
A cast sand mold of the body core is designed, including a base, a lower cast sand mold, a demolding assembly and an upper cast sand mold. The exhaust pipe structure is set up, and the demolding assembly is driven by an electric lifting rod and a spring to achieve rapid demolding and exhaust.
It effectively improves casting efficiency, reduces the generation of pores, and improves the quality and casting rate of the finished product.
Smart Images
Figure CN222740206U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of casting sand molds, in particular to a casting sand mold for a machine body core. Background Art
[0002] Sand casting is a widely used form of casting. As the name suggests, it is a mold made from sand. Sand casting requires placing a model of the finished part in the sand and then filling the mold with sand to form a mold. If the model must be removed before pouring the metal, the mold should be made into two or more parts. The mold must be modified to have holes for pouring metal into the mold. The mold is kept in place for an appropriate time until the metal solidifies. When the part is removed, the mold is destroyed, so a new mold must be made for each casting. Sand mold factories can cast large parts. Sand molds can be used for iron casting, bronze casting, brass casting and aluminum casting. Wet casting is another sand mold casting process. It is low cost and can produce parts of various sizes.
[0003] During sand casting, more gas will be produced, which will cause a large number of pores to appear on the outside of the finished product, thus affecting the quality of the finished product.
[0004] Therefore, it is necessary to propose a casting sand mold for a body core to solve the above problems. Utility Model Content
[0005] The main purpose of the utility model is to provide a casting sand mold for a machine body core, which can effectively solve the problems in the background technology.
[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0007] A casting sand mold for a machine body core comprises a base, the top of the base is movably connected to a lower casting sand mold, the inner cavity of the lower casting sand mold is movably connected to a demoulding assembly, the top of the demoulding assembly is movably connected to an upper casting sand mold, an air pump is installed in the center of the top of the upper casting sand mold, a first exhaust pipe is symmetrically arranged on the front and back sides of the lower casting sand mold, and a second exhaust pipe is symmetrically arranged on the front and back sides of the upper casting sand mold.
[0008] Preferably, mounting frames are symmetrically installed around the top of the base, and four of the mounting frames are symmetrically installed on both sides of the front and back of the upper casting sand mold. An electric lifting rod is installed in the inner cavity of the base, and the top of the electric lifting rod is installed in the center of the bottom of the lower casting sand mold.
[0009] Preferably, guide rods are symmetrically fixedly connected to the top of the lower casting sand mold on all four sides, the upper casting sand mold is sleeved on the outer wall of the guide rods, a mold groove is opened in the center of the top of the lower casting sand mold, the demolding assembly is movably connected in the inner cavity of the mold groove, baffles are symmetrically installed on the front and back sides of the top of the base, and the upper casting sand mold is sleeved on the outer wall of the baffle.
[0010] Preferably, fixed rods are symmetrically fixedly connected around the bottom of the inner cavity of the mold groove, the top of the fixed rods is fixedly connected to a limiting block, the outer wall of the fixed rods is wrapped with a spring, the limiting block and the fixed rods are movably connected in the inner cavity of the demolding assembly, the top of the spring is fixedly connected to the bottom of the demolding assembly, and the bottom of the spring is fixedly connected to the bottom of the inner cavity of the mold groove.
[0011] Preferably, connecting pipes are symmetrically installed on the opposite sides of the first exhaust pipe on the front and back sides and the second exhaust pipe on the front and back sides, and the opposite sides of the top and bottom connecting pipes are symmetrically installed on the front and back sides of the lower casting sand mold and the upper casting sand mold, and the connecting pipes are communicated with the inner cavities of the lower casting sand mold and the upper casting sand mold.
[0012] Preferably, a bellows is symmetrically installed on the opposite side of the second exhaust pipe and the first exhaust pipe, and the bellows is communicated with the inner cavity of the connecting pipe. Mounting pipes are symmetrically installed in the middle of the top of the two second exhaust pipes. The opposite sides of the two mounting pipes are symmetrically installed on the front and back of the vacuum pump, and the mounting pipes are communicated with the inner cavity of the second exhaust pipe. The outer wall flange of the mounting pipe is connected to a sealing valve.
[0013] Beneficial Effects
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] 1. The casting sand mold of the core of the machine body can drive the lower casting sand mold to rise by starting the set electric lifting rod, so that the lower casting sand mold and the upper casting sand mold can be driven to close the mold, so that the casting work can be carried out. The demoulding component set will move to the bottom of the inner cavity of the demoulding component after being pressurized. After the molding is completed and the lower casting sand mold is separated from the bottom of the upper casting sand mold, the demoulding component can be driven to rise by the set spring. At this time, the finished product can be demoulded. After the molding is completed, the finished product can be quickly unloaded, which can effectively improve the overall casting efficiency.
[0016] 2. The casting sand mold of the machine body core can extract the air in the inner cavity of the lower casting sand mold and the upper casting sand mold through the mounting pipe, the second exhaust pipe, the bellows and the first exhaust pipe by starting the set vacuum pump, thereby preventing the generation of a large number of pores during the casting process, effectively increasing the exhaust volume, being more conducive to the casting rate, and further improving the yield rate.
[0017] 3. The casting sand mold of the body core can self-adapt to the positions of the second exhaust pipe and the first exhaust pipe through the provided bellows when the lower casting sand mold and the upper casting sand mold are closed. At the same time, through the provided baffle, when the lower casting sand mold moves, it will move in the inner cavity of the upper casting sand mold, so that the front and back sides of the opposite sides of the lower casting sand mold and the upper casting sand mold can be shielded, which can prevent the bellows from falling between the lower casting sand mold and the upper casting sand mold, and can effectively ensure the casting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a structural schematic diagram of the front side of the utility model;
[0019] Figure 2 It is a structural schematic diagram of the base of the utility model;
[0020] Figure 3 It is a structural schematic diagram of the demoulding component of the utility model;
[0021] Figure 4 It is a structural schematic diagram of the first exhaust pipe on the front side of the utility model.
[0022] In the figure: 1. base; 2. mounting frame; 3. electric lifting rod; 4. lower casting sand mold; 5. demoulding assembly; 6. limit block; 7. fixing rod; 8. spring; 9. guide rod; 10. upper casting sand mold; 11. vacuum pump; 12. baffle; 13. first exhaust pipe; 14. connecting pipe; 15. bellows; 16. second exhaust pipe; 17. mounting pipe. DETAILED DESCRIPTION
[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0024] like Figure 1-Figure 4As shown, a casting sand mold of a machine body core comprises a base 1, a lower casting sand mold 4 is movably connected to the top of the base 1, a demoulding assembly 5 is movably connected to the inner cavity of the lower casting sand mold 4, an upper casting sand mold 10 is movably connected to the top of the demoulding assembly 5, an air pump 11 is installed in the middle of the top of the upper casting sand mold 10, a first exhaust pipe 13 is symmetrically arranged on the front and back of the lower casting sand mold 4, a second exhaust pipe 16 is symmetrically arranged on the front and back of the upper casting sand mold 10, and mounting frames are symmetrically installed around the top of the base 1 2, four mounting frames 2 are symmetrically mounted on both sides of the front and back of the upper casting sand mold 10, an electric lifting rod 3 is installed in the inner cavity of the base 1, the top of the electric lifting rod 3 is installed in the middle of the bottom of the lower casting sand mold 4, the top of the lower casting sand mold 4 is symmetrically fixedly connected with a guide rod 9, the upper casting sand mold 10 is sleeved on the outer wall of the guide rod 9, the middle of the top of the lower casting sand mold 4 is provided with a mold groove, the demoulding component 5 is movably connected in the inner cavity of the mold groove, and the bottom of the inner cavity of the mold groove is symmetrically fixedly connected with a fixing rod 7, The top of the fixed rod 7 is fixedly connected to the limit block 6, the outer wall of the fixed rod 7 is wound with a spring 8, the limit block 6 and the fixed rod 7 are movably connected in the inner cavity of the demolding component 5, the top of the spring 8 is fixedly connected to the bottom of the demolding component 5, and the bottom of the spring 8 is fixedly connected to the bottom of the inner cavity of the mold groove. The front and back first exhaust pipes 13 and the front and back second exhaust pipes 16 are symmetrically installed with connecting pipes 14 on one side opposite to each other, and the top and bottom connecting pipes 14 are symmetrically installed on the opposite sides of the lower casting sand mold 4 and the upper casting sand mold 10. On the front and back sides, the connecting pipe 14 is communicated with the inner cavities of the lower casting sand mold 4 and the upper casting sand mold 10, and the bellows 15 are symmetrically installed on the opposite side of the second exhaust pipe 16 and the first exhaust pipe 13, and the bellows 15 is communicated with the inner cavity of the connecting pipe 14, and the mounting pipe 17 is symmetrically installed in the middle of the top of the two second exhaust pipes 16, and the opposite sides of the two mounting pipes 17 are symmetrically installed on the front and back sides of the vacuum pump 11, the mounting pipe 17 is communicated with the inner cavity of the second exhaust pipe 16, and the outer wall flange of the mounting pipe 17 is connected with a sealing valve.
[0025] By starting the set electric lifting rod 3, the lower casting sand mold 4 can be driven to rise, thereby driving the lower casting sand mold 4 and the upper casting sand mold 10 to be molded together, so that the casting work can be carried out. The demoulding component 5 is set, and it will move to the bottom of the inner cavity of the demoulding component 5 after being pressurized. When the molding is completed, and the lower casting sand mold 4 is separated from the bottom of the upper casting sand mold 10, the demoulding component 5 can be driven to rise by the set spring 8, and the finished product can be demoulded at this time. After the molding is completed, the finished product can be quickly unloaded, which can effectively improve the overall casting efficiency. By starting the set vacuum pump 11, the lower casting sand mold can be installed through the installation pipe 17, the second exhaust pipe 16, the bellows 15 and the first exhaust pipe 13. 4 and the air in the inner cavity of the upper casting sand mold 10 can be extracted, so as to prevent the generation of more pores during the casting process, effectively increase the exhaust volume, and be more conducive to the casting rate, and can further improve the yield rate. Through the provided bellows 15, when the lower casting sand mold 4 and the upper casting sand mold 10 are molded together, the positions of the second exhaust pipe 16 and the first exhaust pipe 13 can be adapted for self-adaptation. At the same time, through the provided baffle 12, when the lower casting sand mold 4 moves, it will move in the inner cavity of the upper casting sand mold 10, so that the front and back sides of the opposite sides of the lower casting sand mold 4 and the upper casting sand mold 10 can be blocked, and the bellows 15 can be prevented from falling between the lower casting sand mold 4 and the upper casting sand mold 10, which can effectively ensure the casting efficiency.
[0026] It should be noted that the utility model is a casting sand mold for a machine body core. When in use, the material is placed in the inner cavity of the lower casting sand mold 4, and the mounting frame 2 is started to drive the lower casting sand mold 4 to rise until the lower casting sand mold 4 is fitted with the upper casting sand mold 10, so as to perform molding work. During molding, the vacuum pump 11 is started, and the lower casting sand mold 4 and the upper casting sand mold 10 are exhausted through the mounting pipe 17, the second exhaust pipe 16, the bellows 15, the first exhaust pipe 13 and the connecting pipe 14. When the molding is completed, the mounting frame 2 is started to reset the lower casting sand mold 4. At this time, the spring 8 will bounce the demolding component 5 to the top to complete the demolding.
[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A casting sand mold for a machine core, comprising a base (1), characterized in that: The top of the base (1) is movably connected to a lower casting sand mold (4), the inner cavity of the lower casting sand mold (4) is movably connected to a demoulding assembly (5), the top of the demoulding assembly (5) is movably connected to an upper casting sand mold (10), a vacuum pump (11) is installed in the middle of the top of the upper casting sand mold (10), the front and back sides of the lower casting sand mold (4) are symmetrically provided with a first exhaust pipe (13), and the front and back sides of the upper casting sand mold (10) are symmetrically provided with a second exhaust pipe (16).
2. The casting sand mold of the machine body core according to claim 1, characterized in that: The top of the base (1) is symmetrically mounted with mounting frames (2), and four mounting frames (2) are symmetrically mounted on both sides of the front and back of the upper casting sand mold (10). An electric lifting rod (3) is installed in the inner cavity of the base (1), and the top of the electric lifting rod (3) is mounted in the middle of the bottom of the lower casting sand mold (4).
3. The casting sand mold of the machine body core according to claim 1, characterized in that: The top of the lower casting sand mold (4) is symmetrically fixedly connected with guide rods (9) on all sides, the upper casting sand mold (10) is sleeved on the outer wall of the guide rods (9), a mold groove is opened in the middle of the top of the lower casting sand mold (4), the demoulding component (5) is movably connected in the inner cavity of the mold groove, and baffles (12) are symmetrically installed on the front and back sides of the top of the base (1), and the upper casting sand mold (10) is sleeved on the outer wall of the baffle (12).
4. The casting sand mold of the machine body core according to claim 3, characterized in that: Fixed rods (7) are symmetrically fixedly connected around the bottom of the inner cavity of the mold groove, the top of the fixed rods (7) is fixedly connected to a limiting block (6), the outer wall of the fixed rods (7) is wound with a spring (8), the limiting block (6) and the fixed rods (7) are movably connected in the inner cavity of the demoulding component (5), the top of the spring (8) is fixedly connected to the bottom of the demoulding component (5), and the bottom of the spring (8) is fixedly connected to the bottom of the inner cavity of the mold groove.
5. The casting sand mold of the machine body core according to claim 1, characterized in that: Connecting pipes (14) are symmetrically installed on the opposite sides of the first exhaust pipe (13) on the front and back sides and the second exhaust pipe (16) on the front and back sides, and the opposite sides of the connecting pipes (14) on the top and bottom sides are symmetrically installed on the front and back sides of the lower casting sand mold (4) and the upper casting sand mold (10), and the connecting pipes (14) are communicated with the inner cavities of the lower casting sand mold (4) and the upper casting sand mold (10).
6. The casting sand mold of the machine body core according to claim 1, characterized in that: A bellows (15) is symmetrically installed on one side of the second exhaust pipe (16) and the first exhaust pipe (13), and the bellows (15) is in communication with the inner cavity of the connecting pipe (14). A mounting pipe (17) is symmetrically installed in the middle of the top of the two second exhaust pipes (16). The two mounting pipes (17) are symmetrically installed on the front and back sides of the vacuum pump (11) on one side of the second exhaust pipe (16). The mounting pipe (17) is in communication with the inner cavity of the second exhaust pipe (16), and a sealing valve is connected to the outer wall flange of the mounting pipe (17).