Die for metal material casting

Abstract

The utility model relates to the technical field of dies, and discloses a die for a metal material casting, which comprises an upper die box, an upper die core is arranged in the upper die box, the top surface of the upper die box is connected with a hydraulic component, the bottom surface of the upper die box is connected with a lower die box, and a lower die core is arranged in the lower die box. The possibility that bubbles appear in a casting can be effectively reduced through the risers, so that the purpose of improving the quality of the casting is achieved, heat dissipated by the lower die box can be conducted through the cooling sand, so that the lower die box is cooled, and only the lower die box is located in the sand box, so that the casting quality is improved. The effect of cooling the mold from bottom to top can be achieved, so that bubbles generated in a casting are reduced, cooling liquid can be pumped into the hose through operation of the water pump, so that the lower mold box is cooled, the tail end of the hose returns to the water tank again, the effect of recycling the cooling liquid can be achieved, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a mold used for metal material castings. Background Art

[0002] Castings are metal shaped objects obtained by various casting methods, that is, the smelted liquid metal is poured into a pre-prepared mold by pouring, injection, suction or other casting methods, and then cooled and polished to obtain objects with a certain shape, size and performance.

[0003] According to the search, Chinese patent literature, announcement number: CN214720348U, discloses a metal casting casting mold, which relates to the field of mechanical technology. The utility model includes a support device, an upper mold device, a lower mold device and a control device. The support device includes a top plate and a base. The upper mold device includes a cylinder, a temperature sensor and a sliding column. The lower mold device includes a lower mold plate and a fixed rod. The control device includes a controller. The utility model is a metal casting casting mold. By setting a cylinder to drive a telescopic column to drive the lower mold plate and the lower module to move downward, the mold is electrically controlled to close the mold, and an electric push rod is set to drive the lower mold groove to move upward to help demolding, improve casting efficiency, and reduce manpower burden. By setting a sliding column, the upper and lower mold plates can be accurately aligned when close, and relative movement is not easy to occur, thereby reducing the defective product generation rate and saving costs. By setting a temperature sensor to accurately reflect the temperature inside the mold cavity, demolding is performed according to the temperature, and the operation process is more scientific and efficient.

[0004] However, when the utility model is used, the mold is cooled in a natural state, resulting in a long molding time, and bubbles are easily generated during molding, which is not conducive to the rapid and high-quality production of castings. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a mold for metal material castings, which assists in cooling the mold after injection and reduces the possibility of bubbles generated inside the casting, thereby solving the above technical problems.

[0007] (II) Technical solution

[0008] To achieve the above object, the utility model provides the following technical solution: a mold for metal material castings, comprising an upper mold box, an upper mold core is arranged inside the upper mold box, a hydraulic assembly is connected to the top surface of the upper mold box, and a lower mold box is connected to the bottom surface of the upper mold box;

[0009] A lower mold core is arranged inside the lower mold box, and the lower mold box is placed in a sand box. A water tank is arranged on the left surface of the sand box, and a water inlet is arranged on the top surface of the water tank.

[0010] Preferably, the left and right side surfaces of the upper mold box are respectively provided with mutually symmetrical positioning grooves, and the left and right side surfaces of the lower mold box are respectively provided with mutually symmetrical positioning rods.

[0011] Through the above technical scheme, by setting the positioning groove and the positioning rod, an auxiliary positioning effect can be played during mold closing, so that the upper mold box and the lower mold box can be more accurately matched, and during the pouring process, the relative displacement of the upper mold box and the lower mold box can be reduced, thereby improving the quality of the casting and avoiding damage to the finished product.

[0012] Preferably, a mounting groove is provided on the top surface of the upper mold box, and a riser is installed on the surface of the mounting groove.

[0013] Through the above technical solution, the bottom of the riser can be stuck in the groove through the installation groove, so as to complete the installation of the riser, which is easy to operate. In addition, the riser has the functions of exhausting, collecting residues, and compensating for shrinkage, which can effectively reduce the possibility of bubbles appearing inside the casting, thereby achieving the purpose of improving the quality of the casting.

[0014] Preferably, cooling sand is provided inside the sandbox, and a mounting plate is installed inside the sandbox, the wide side of the mounting plate is connected to the front and rear inner walls of the sandbox, and a lower mold box is provided on the upper surface of the mounting plate.

[0015] Through the above technical scheme, the heat emitted by the lower mold box can be conducted through cooling sand, thereby cooling the lower mold box, and because only the lower mold box is located inside the sand box, an effect of cooling the mold from bottom to top can be achieved, thereby reducing the appearance of bubbles inside the casting.

[0016] Preferably, a motor compartment is provided on the inner bottom surface of the sandbox, a driving motor is installed inside the motor compartment, and a stirring rod is installed on the top surface of the driving motor.

[0017] Through the above technical solution, the cooling sand inside the sandbox can be prevented from leaking to the surface of the driving motor through the motor compartment, thereby protecting the driving motor, and the operation of the driving motor will drive the stirring rod to rotate, thereby stirring the cooling sand, thereby improving the heat dissipation effect of the cooling sand.

[0018] Preferably, coolant is provided inside the water tank, and a water pump is installed on the inner bottom surface of the water tank. A hose is connected to the right surface of the water pump, and the hose spirals up around the inner wall of the lower mold box and returns to the water tank.

[0019] Through the above technical solution, the coolant will be pumped into the hose through the operation of the water pump, thereby cooling the lower mold box, and the end of the hose returns to the water tank, which can achieve the effect of recycling the coolant, thereby reducing costs. At the same time, the spiral arrangement of the hose can achieve the effect of fully wrapping the lower mold core, thereby improving the cooling effect.

[0020] Preferably, the upper mold box and the lower mold box are made of silicon carbide ceramics.

[0021] Through the above technical solution, silicon carbide ceramic is a high-temperature ceramic material made of silicon carbide powder, which has extremely high hardness and excellent heat resistance. It can maintain stability and a relatively low expansion coefficient in a high temperature difference environment. Using this material to make the upper mold box and the lower mold box can make it have excellent heat resistance and thermal conductivity, thereby accelerating cooling.

[0022] Compared with the prior art, the utility model provides a mold for metal material castings, which has the following beneficial effects:

[0023] 1. The utility model can clamp the bottom of the riser in the groove through the installation groove, so as to complete the installation of the riser, which is easy to operate. The riser has the functions of exhausting, collecting residues, and compensating shrinkage, which can effectively reduce the possibility of bubbles inside the casting, thereby achieving the purpose of improving the quality of the casting. The heat emitted by the lower mold box can be conducted through the cooling sand, so as to cool the lower mold box. Since only the lower mold box is located inside the sand box, the effect of cooling the mold from bottom to top can be achieved, thereby reducing the appearance of bubbles inside the casting.

[0024] 2. The utility model can prevent the cooling sand inside the sand box from leaking to the surface of the driving motor through the motor compartment, thereby protecting the driving motor, and the operation of the driving motor will drive the stirring rod to rotate, thereby stirring the cooling sand, thereby improving the heat dissipation effect of the cooling sand, and through the operation of the water pump, the coolant will be drawn into the hose, thereby cooling the lower mold box, and the end of the hose returns to the water tank, which can achieve the effect of recycling the coolant, thereby reducing costs, and the spiral arrangement of the hose can achieve the effect of fully wrapping the lower mold core, thereby improving the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0026] Figure 2 It is a schematic diagram of the three-dimensional structure of the lower mold box of the utility model;

[0027] Figure 3 This is a schematic diagram of the cross-sectional structure of the sandbox of the present utility model;

[0028] Figure 4 It is a schematic diagram of the cross-sectional structure of the water tank of the utility model.

[0029] Among them: 1. upper mold box; 2. upper mold core; 3. hydraulic assembly; 4. lower mold box; 5. lower mold core; 6. sand box; 61. cooling sand; 62. mounting plate; 7. water tank; 71. water inlet; 72. coolant; 8. positioning groove; 9. positioning rod; 10. riser; 11. mounting groove; 12. motor compartment; 121. drive motor; 13. stirring rod; 14. water pump; 15. hose. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Embodiment 1:

[0032] like Figure 1-2 As shown, the utility model provides a mold for metal material castings, including an upper mold box 1, an upper mold core 2 is arranged inside the upper mold box 1, a hydraulic assembly 3 is connected to the top surface of the upper mold box 1, and a lower mold box 4 is connected to the bottom surface of the upper mold box 1;

[0033] A lower mold core 5 is disposed inside the lower mold box 4 , and the lower mold box 4 is placed in a sand box 6 . A water tank 7 is disposed on the left surface of the sand box 6 , and a water inlet 71 is disposed on the top surface of the water tank 7 .

[0034] Specifically, mutually symmetrical positioning grooves 8 are respectively provided on the left and right side surfaces of the upper mold box 1, and mutually symmetrical positioning rods 9 are respectively provided on the left and right side surfaces of the lower mold box 4. The advantage is that the positioning grooves 8 and the positioning rods 9 can play an auxiliary positioning role during mold closing, so that the upper mold box 1 and the lower mold box 4 can be more accurately matched, and during the pouring process, the relative displacement of the upper mold box 1 and the lower mold box 4 is reduced, thereby improving the quality of the casting and avoiding damage to the finished product.

[0035] Specifically, the top surface of the upper mold box 1 is provided with a mounting groove 11, and the surface of the mounting groove 11 is provided with a riser 10. The advantage is that the bottom of the riser 10 can be stuck in the groove through the mounting groove 11, thereby completing the installation of the riser 10, which is easy to operate, and the riser 10 has the functions of exhausting, collecting residues, and shrinkage compensation, which can effectively reduce the possibility of bubbles inside the casting, thereby achieving the purpose of improving the quality of the casting.

[0036] Specifically, the upper mold box 1 and the lower mold box 4 are made of silicon carbide ceramics. The advantage is that silicon carbide ceramics are a high-temperature ceramic material made of silicon carbide powder, which has extremely high hardness and excellent heat resistance. It can maintain stability and a relatively low expansion coefficient in a high temperature difference environment. Using this material to make the upper mold box 1 and the lower mold box 4 can make them have excellent heat resistance and thermal conductivity, thereby accelerating cooling.

[0037] Embodiment 2:

[0038] like Figure 1-4 As shown, as an improvement to the previous embodiment, specifically, the sandbox 6 is provided with cooling sand 61, and a mounting plate 62 is installed inside the sandbox 6, the wide side of the mounting plate 62 is connected to the inner walls of the front and rear sides of the sandbox 6, and the upper surface of the mounting plate 62 is provided with a lower mold box 4. The advantage is that the heat emitted by the lower mold box 4 can be conducted through the cooling sand 61, so as to cool the lower mold box 4, and since only the lower mold box 4 is located inside the sandbox 6, an effect of cooling the mold from bottom to top can be achieved, thereby reducing the appearance of bubbles inside the casting.

[0039] Specifically, the inner bottom surface of the sandbox 6 is provided with a motor compartment 12, a driving motor 121 is installed inside the motor compartment 12, and a stirring rod 13 is installed on the top surface of the driving motor 121. The advantage is that the cooling sand 61 inside the sandbox 6 can be prevented from leaking to the surface of the driving motor 121 through the motor compartment 12, thereby protecting the driving motor 121, and the operation of the driving motor 121 will drive the stirring rod 13 to rotate, thereby stirring the cooling sand 61, thereby improving the heat dissipation effect of the cooling sand 61.

[0040] Specifically, the water tank 7 is provided with coolant 72, and a water pump 14 is installed on the inner bottom surface of the water tank 7. A hose 15 is connected to the right surface of the water pump 14, and the hose 15 spirally rises around the inner wall of the lower mold box 4 and returns to the water tank 7. The advantage is that the coolant 72 is drawn into the hose 15 through the operation of the water pump 14, thereby cooling the lower mold box 4, and the end of the hose 15 returns to the water tank 7, which can achieve the effect of recycling the coolant 72, thereby reducing costs. At the same time, the spiral arrangement of the hose 15 can achieve the effect of fully wrapping the lower mold core 5, thereby improving the cooling effect.

[0041] Working principle: When in use, the positioning groove 8 and the positioning rod 9 can play an auxiliary positioning role when closing the mold, so that the upper mold box 1 and the lower mold box 4 can be more accurately matched, and during the pouring process, the relative displacement of the upper mold box 1 and the lower mold box 4 is reduced, thereby improving the quality of the casting and avoiding damage to the finished product. The bottom of the riser 10 can be stuck in the groove through the installation groove 11, thereby completing the installation of the riser 10, which is easy to operate. The riser 10 has the functions of exhausting, collecting residues, and shrinkage compensation, which can effectively reduce the possibility of bubbles inside the casting, thereby achieving the purpose of improving the quality of the casting. Silicon carbide ceramics are a high-temperature ceramic material made of silicon carbide powder, which has extremely high hardness and excellent heat resistance. It can maintain stability and a relatively low expansion coefficient in a high temperature difference environment. Using this material to make the upper mold box 1 and the lower mold box 4 can make them have excellent heat resistance and thermal conductivity, thereby accelerating cooling, and through the cooling sand 61, the heat emitted by the lower mold box 4 can be conducted to cool the lower mold box 4. Since only the lower mold box 4 is located inside the sand box 6, an effect of cooling the mold from bottom to top can be achieved, thereby reducing the appearance of bubbles inside the casting, and the cooling sand 61 inside the sand box 6 can be prevented from leaking to the surface of the drive motor 121 through the motor compartment 12. Thereby, the driving motor 121 is protected, and the operation of the driving motor 121 drives the stirring rod 13 to rotate, thereby stirring the cooling sand 61, thereby improving the heat dissipation effect of the cooling sand 61, and the operation of the water pump 14 draws the coolant 72 into the hose 15, thereby cooling the lower mold box 4, and the end of the hose 15 returns to the water tank 7, which can achieve the effect of recycling the coolant 72, thereby reducing costs, and the spiral arrangement of the hose 15 can achieve the effect of fully wrapping the lower mold core 5, thereby improving the cooling effect.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mold for metal castings, comprising an upper mold box (1), characterized in that: An upper mold core (2) is arranged inside the upper mold box (1), a hydraulic assembly (3) is connected to the top surface of the upper mold box (1), and a lower mold box (4) is connected to the bottom surface of the upper mold box (1); A lower mold core (5) is arranged inside the lower mold box (4), and the lower mold box (4) is placed in a sand box (6). A water tank (7) is arranged on the left surface of the sand box (6), and a water inlet (71) is arranged on the top surface of the water tank (7).

2. A mold for metal casting according to claim 1, characterized in that: The left and right side surfaces of the upper mold box (1) are respectively provided with mutually symmetrical positioning grooves (8), and the left and right side surfaces of the lower mold box (4) are respectively provided with mutually symmetrical positioning rods (9).

3. A mold for metal casting according to claim 1, characterized in that: The top surface of the upper mold box (1) is provided with a mounting groove (11), and a riser (10) is installed on the surface of the mounting groove (11).

4. A mold for metal casting according to claim 1, characterized in that: The sand box (6) is provided with cooling sand (61) inside, and a mounting plate (62) is installed inside the sand box (6), the wide side of the mounting plate (62) is connected to the front and rear inner walls of the sand box (6), and the upper surface of the mounting plate (62) is provided with a lower mold box (4).

5. A mold for metal casting according to claim 1, characterized in that: The inner bottom surface of the sandbox (6) is provided with a motor compartment (12), a driving motor (121) is installed inside the motor compartment (12), and a stirring rod (13) is installed on the top surface of the driving motor (121).

6. A mold for metal casting according to claim 1, characterized in that: The water tank (7) is provided with a cooling liquid (72) inside, and a water pump (14) is installed on the inner bottom surface of the water tank (7). The right side surface of the water pump (14) is connected to a hose (15), and the hose (15) spirals up around the inner wall of the lower mold box (4) and returns to the water tank (7).

7. A mold for metal casting according to claim 1, characterized in that: The upper mold box (1) and the lower mold box (4) are made of silicon carbide ceramics.

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