Casting mold for valve casing of exhaust valve of marine diesel engine

Abstract

The utility model relates to the field of machinery manufacturing, and discloses a casting mold of a marine diesel engine exhaust valve casing, which comprises a casing, the left side of the casing is fixedly connected with a motor I, the output end of the motor I is fixedly connected with a bidirectional threaded rod I, and the left side and the right side of the bidirectional threaded rod I are in threaded connection with sliding blocks I; and mold plates are fixedly connected to the opposite sides of the two first sliding blocks, a top plate is slidably connected to the upper sides of the inner walls of the mold plates, a casting opening is formed in the top plate, and first sliding rods are slidably connected to the interiors of the two first sliding blocks. According to the mold, the first motor, the first two-way threaded rod, the first sliding block, the first sliding rod, the second motor, the second two-way threaded rod, the second sliding block, the clamping rod, the second sliding rod, the gear motor, the supporting plate, the lifting frame, the rack rod, the top plate and the pouring gate structure are matched with one another, the mold plate is driven to work, when the mold is not in direct contact, the valve shell is separated from the mold, and the risk of high-temperature scalding is avoided.

Description

Technical Field

[0001] The utility model relates to the field of mechanical manufacturing, in particular to a casting mold for a valve housing of an exhaust valve of a marine diesel engine. Background Art

[0002] A casting mold is a tool or mold used to form the desired product shape during the casting process. Permanent molds are made of metal and can be reused many times. Common permanent mold materials include cast iron, steel, etc. The manufacturing process of a casting mold includes mold design, mold manufacturing, mold debugging and use stages. In the design stage, factors such as the shape, size, material and surface requirements of the casting need to be considered. The manufacturing process involves steps such as the selection, processing and assembly of mold materials. The debugging stage is used to verify the performance of the mold and the rationality of the casting process. Finally, in the use stage, the mold is used in actual casting production. The design and manufacture of casting molds usually require expertise and experience to ensure the quality and production efficiency of castings. In the foundry industry, the quality and performance of casting molds directly affect the quality and production efficiency of castings.

[0003] After searching, Chinese patent announcement number: CN218015622U discloses a casting mold, which includes an upper mold and a lower mold; the upper mold and the lower mold are fitted to each other, and the upper mold and the lower mold are provided with a cavity on the opposite side, the cavity on the upper mold and the cavity on the lower mold are spliced ​​to form a cavity, and a pouring cup is provided on the side of the upper mold away from the lower mold, and a direct current channel is provided in the upper mold, and the pouring cup is connected to the direct current channel; a cross flow channel is provided on the upper mold on the side of the cavity away from the lower mold, and the cross flow channel is connected to the direct current channel, and the side of the cross flow channel away from the direct current channel is connected and connected to an inner flow channel, and the inner flow channel is connected to the cavity at one end away from the cross flow channel; the direct current channel is obliquely opened in the upper mold, and the angle formed by the direct current channel and the cross flow channel is an obtuse angle; the application has the effect of reducing the probability of reflux of molten metal.

[0004] Although the above document discloses that a cross flow channel is provided on the upper mold on the side of the cavity away from the lower mold, the cross flow channel is connected to the direct flow channel, the side of the cross flow channel away from the direct flow channel is connected and connected to the inner flow channel, and the inner flow channel is connected to the cavity at one end away from the cross flow channel; the direct flow channel is obliquely provided in the upper mold, and the angle formed by the direct flow channel and the cross flow channel is an obtuse angle; the present application has the effect of reducing the probability of reflux of molten metal, but the above-mentioned mold is the same as the traditional mold, and the mold needs to be opened manually, and the metal cools down naturally very slowly at high temperature, and there is a risk of being burned by high temperature at this time. Therefore, a casting mold for a valve housing of a marine diesel engine exhaust valve is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a casting mold for a valve housing of an exhaust valve of a marine diesel engine, aiming to improve the problem of being scalded by high temperature when the mold is opened manually.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a casting mold for a valve housing of an exhaust valve of a marine diesel engine, comprising a shell, a motor 1 is fixedly connected to the left side of the shell, a bidirectional threaded rod 1 is fixedly connected to the output end of the motor 1, a slider 1 is threadedly connected to the left and right sides of the bidirectional threaded rod 1, two sliders 1 are fixedly connected to the opposite sides of the template, a top plate is slidably connected to the upper side of the inner wall of the template, a casting port is opened inside the top plate, two sliders 1 are slidably connected to the slider 1 inside, a motor 2 is fixedly connected to the left side of the shell, a bidirectional threaded rod 2 is fixedly connected to the output end of the motor 2, a slider 2 is threadedly connected to the left and right sides of the bidirectional threaded rod 2, two sliders 2 are fixedly connected to the opposite sides of the two sliders 2, a clamping rod is fixedly connected to the two sliders 1, a slider 2 is slidably connected inside, a gear motor is fixedly connected to the inner rear wall of the shell, a support plate is rotatably connected to the output end of the gear motor, a lifting frame is slidably connected to the inner wall of the shell, a rack rod is fixedly connected to the rear side of the lifting frame, the rack rod is meshed with the gear motor, and a circulating cooling device is installed inside the shell;

[0007] As a further description of the above technical solution:

[0008] The circulating cooling device comprises a water tank, a water pump 1 is fixedly connected to the bottom wall of the water tank, a hose 1 is fixedly connected to the output end of the water pump 1, a cooling barrel is fixedly connected to the top of the hose 1, a hose 2 is fixedly connected to the top of the cooling barrel, a water pump 2 is fixedly connected to the bottom of the hose 2, the top of the water pump 2 is fixedly connected to the top wall of the water tank, and heat dissipation ports are provided on both sides of the top of the water tank;

[0009] As a further description of the above technical solution:

[0010] The bottoms of the two templates are slidably connected to the top of the water tank;

[0011] As a further description of the above technical solution:

[0012] One end of the bidirectional threaded rod is rotatably connected to the inner wall of the shell, and one end of the sliding rod is rotatably connected to the inner wall of the shell;

[0013] As a further description of the above technical solution:

[0014] The two ends of the bidirectional threaded rod are rotatably connected to the inner wall of the shell, and the two ends of the sliding rod are rotatably connected to the inner wall of the shell;

[0015] As a further description of the above technical solution:

[0016] The outer periphery of the clamping rod is slidably connected to the interior of the template;

[0017] As a further description of the above technical solution:

[0018] The rear side of the support plate is fixedly connected to the inner rear wall of the shell;

[0019] As a further description of the above technical solution:

[0020] The top of the lifting frame is fixedly connected to the top of the cooling barrel, and the top plate is fixedly connected to the upper side of the outer wall of the cooling barrel;

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the template is driven to work through the mutual cooperation of motor 1, bidirectional threaded rod 1, slider 1, slide rod 1, motor 2, bidirectional threaded rod 2, slider 2, clamp rod, slide rod 2, gear motor, support plate, lifting frame, rack rod, top plate, and casting port structure, so that the valve housing can be separated from the mold when it is not in direct contact with the mold, avoiding the risk of high temperature burns.

[0023] 2. In the utility model, with the cooperation of the outer shell, water tank, water pump 1, hose 1, cooling barrel, hose 2, water pump 2, heat dissipation port and other structures, the cooling barrel can be driven, which solves the problem of rapid cooling. Natural heat dissipation requires a lot of time. This device can quickly dissipate heat, effectively save time and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional schematic diagram of a casting mold for a marine diesel engine exhaust valve housing proposed by the utility model;

[0025] Figure 2 This is a schematic structural diagram of a gear motor of a casting mold for a marine diesel engine exhaust valve housing proposed by the utility model;

[0026] Figure 3 The utility model is a schematic structural diagram of a bidirectional threaded rod of a casting mold for a marine diesel engine exhaust valve housing.

[0027] Figure 4 The utility model is a schematic structural diagram of a cooling barrel of a casting mold for a marine diesel engine exhaust valve housing.

[0028] Legend:

[0029] 1. Shell; 2. Water tank; 3. Water pump 1; 4. Hose 1; 5. Cooling barrel; 6. Hose 2; 7. Water pump 2; 8. Heat dissipation port; 9. Motor 1; 10. Two-way threaded rod 1; 11. Slider 1; 12. Template; 13. Slider 1; 14. Motor 2; 15. Two-way threaded rod 2; 16. Slider 2; 17. Clamp rod; 18. Slider 2; 19. Gear motor; 20. Support plate; 21. Lifting frame; 22. Rack rod; 23. Top plate; 24. Casting port. 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] Reference Figure 1 - Figure 3 The utility model provides an embodiment: a casting mold for a marine diesel engine exhaust valve housing, comprising a housing 1, a motor 9 is fixedly connected to the left side of the housing 1, a bidirectional threaded rod 10 is fixedly connected to the output end of the motor 9, a slider 11 is threadedly connected to the left and right sides of the bidirectional threaded rod 10, a template 12 is fixedly connected to the opposite side of the two sliders 11, a top plate 23 is slidably connected to the upper side of the inner wall of the template 12, a casting port 24 is opened inside the top plate 23, a slide rod 13 is slidably connected to the inside of the two sliders 11, and a motor 2 14 is fixedly connected to the left side of the housing 1, A bidirectional threaded rod 15 is fixedly connected to the output end of the motor 14, and a slider 16 is threadedly connected to the left and right sides of the bidirectional threaded rod 15, and a clamping rod 17 is fixedly connected to the opposite sides of the two sliders 16, and a slider 18 is slidably connected inside the two sliders 11, and a gear motor 19 is fixedly connected to the inner rear wall of the outer shell 1, and a support plate 20 is rotatably connected to the output end of the gear motor 19, and a lifting frame 21 is slidably connected to the inner side wall of the outer shell 1, and a rack rod 22 is fixedly connected to the rear side of the lifting frame 21, and the rack rod 22 is meshed with the gear motor 19, and a circulating cooling device is installed inside the outer shell 1.

[0032] Specifically, the housing 1 is used to protect and connect other components. The motor 19 is controlled to rotate by an external power supply to drive the slider 11 on the bidirectional threaded rod 10 to move. The slider 13 penetrates the two sliders 11 to ensure that the slider 11 does not move around or shake during the left and right movement. The slider 11 is connected to the template 12 and moves synchronously with the slider 11. The motor 2 14 is controlled to rotate by an external power supply to drive the slider 2 16 on the bidirectional threaded rod 2 15 to move. The slider 2 18 penetrates the two sliders 2 16 to ensure that the slider 2 16 does not move around during the left and right movement. There will be no shaking or swaying. The slider 2 16 is connected to the clamping rod 17 and will move synchronously with the slider 2 16. The lifting frame 21 slides on the inner wall of the shell 1 to ensure that the lifting frame 21 can only move up and down. A rack rod 22 is fixed behind the lifting frame 21. The gear motor 19 is controlled by an external power supply, and the rack rod 22 will move upward. The bottom of the lifting frame 21 is connected to the cooling barrel 5, and the cooling barrel 5 also moves upward. The top plate 23 is used for protection to prevent molten iron from splashing when the molten iron is poured from the casting port 24 to avoid scalding the staff. The demoulding is completed by the cooperation of the above components.

[0033] Reference Figure 2 - Figure 4 The circulating cooling device includes a water tank 2, a water pump 3 is fixedly connected to the bottom wall of the water tank 2, a hose 4 is fixedly connected to the output end of the water pump 3, a cooling barrel 5 is fixedly connected to the top of the hose 4, a hose 6 is fixedly connected to the top of the cooling barrel 5, a water pump 7 is fixedly connected to the bottom of the hose 6, the top of the water pump 7 is fixedly connected to the top wall of the water tank 2, heat dissipation ports 8 are provided on both sides of the top of the water tank 2, two templates 12 are slidably connected to the top of the water tank 2 at the bottom, two ends of the two-way threaded rod 10 are rotatably connected to the inner wall of the shell 1, two ends of the slide bar 13 are rotatably connected to the inner wall of the shell 1, two ends of the two-way threaded rod 15 are rotatably connected to the inner wall of the shell 1, two ends of the slide bar 18 are rotatably connected to the inner wall of the shell 1, the outer periphery of the clamping rod 17 is slidably connected to the inside of the template 12, the rear side of the support plate 20 is fixedly connected to the inner rear wall of the shell 1, the top of the lifting frame 21 is fixedly connected to the top of the cooling barrel 5, and the top plate 23 is fixedly connected to the upper side of the outer wall of the cooling barrel 5.

[0034] Specifically, the water tank 2 is used to store cold water to facilitate subsequent heat dissipation. Cold water is injected through two heat dissipation ports 8. The heat dissipation ports 8 can also be used to dissipate the heat in the water drawn from the cooling barrel 5 during operation. The water pump 3 is controlled by an external power supply. The water pump 3 is used to draw water from the water tank 2. The water flows into the cooling barrel 5 through the hose 4. The water pump 2 7 is controlled by an external power supply. The water pump 2 7 draws the water from the cooling barrel 5 through the hose 2 6 back into the water tank 2. In this way, the water cycle is completed. When the water passes through the hose 1 4 and the hose 2 6, the pipe wall is in direct contact with the air, which also realizes the dissipation of the heat in the water drawn from the cooling barrel 5 during operation. This operation saves water and satisfies the effect of rapid cooling.

[0035] Working principle: When the device is needed, first add water into the water tank 2 through the heat dissipation port 8, and then pour the pre-melted molten iron from the casting port 24. When the molten iron fills the gap, the water pump 3 is controlled by an external power supply to pump water out of the water tank 2, and the water flows into the cooling barrel 5 through a hose 4, allowing the cold water to cool the molten iron. After the molten iron solidifies, the motor 9 is controlled by an external power supply to rotate, driving the bidirectional threaded rod 10 to rotate, and the slider 11 will move to both sides. At this time, the template 12 will also move to both sides. Open the template 12 to allow the air to continue to dissipate heat to the valve shell. When the temperature drops completely, the water pump 27 is controlled by an external power supply to pump water from The cooling barrel 5 is pumped back into the water tank 2 through the hose 26, and the water can be reused. At this time, the gear motor 19 is controlled to rotate by an external power supply, and the rack rod 22 will lift the lifting frame 21 to move upward, and the cooling barrel 5 will be drawn out of the valve housing together and move upward together. The motor 2 14 is controlled to rotate by an external power supply again, driving the two-way threaded rod 2 15 to rotate, and the slider 2 16 will move to both sides, and the connected clamping rod 17 will move to both sides to loosen the valve housing. At this time, you only need to move the valve housing to the storage location. This casting method saves time and effort, effectively reduces the cooling time, and does not require direct contact between workers during demolding, avoiding the risk of high temperature burns.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A casting mold for a marine diesel engine exhaust valve housing, comprising a housing (1), characterized in that: The left side of the housing (1) is fixedly connected to a motor 1 (9), the output end of the motor 1 (9) is fixedly connected to a bidirectional threaded rod 1 (10), the left and right sides of the bidirectional threaded rod 1 (10) are both threadedly connected to sliders 1 (11), the two sliders 1 (11) are fixedly connected to a template (12) on the opposite side, the upper side of the inner wall of the template (12) is slidably connected to a top plate (23), a casting port (24) is provided inside the top plate (23), the two sliders 1 (11) are slidably connected to the slide rod 1 (13), the left side of the housing (1) is fixedly connected to a motor 2 (14), the output end of the motor 2 (14) is fixedly connected to a bidirectional threaded rod 2 ( 15), the left and right sides of the bidirectional threaded rod 2 (15) are both threadedly connected with a slider 2 (16), the opposite sides of the two sliders 2 (16) are fixedly connected with a clamping rod (17), the two sliders 1 (11) are slidably connected with a slider 2 (18) inside, the inner rear wall of the shell (1) is fixedly connected with a gear motor (19), the output end of the gear motor (19) is rotatably connected with a support plate (20), the inner side wall of the shell (1) is slidably connected with a lifting frame (21), the rear side of the lifting frame (21) is fixedly connected with a rack rod (22), the rack rod (22) is meshed with the gear motor (19), and a circulating cooling device is installed inside the shell (1).

2. The casting mold for the exhaust valve housing of a marine diesel engine according to claim 1, characterized in that: The circulating cooling device comprises a water tank (2), a water pump (3) is fixedly connected to the inner bottom wall of the water tank (2), a hose (4) is fixedly connected to the output end of the water pump (3), a cooling barrel (5) is fixedly connected to the top of the hose (4), a hose (6) is fixedly connected to the top of the cooling barrel (5), a water pump (7) is fixedly connected to the bottom of the hose (6), the top of the water pump (7) is fixedly connected to the inner top wall of the water tank (2), and heat dissipation ports (8) are provided on both sides of the top of the water tank (2).

3. The casting mold for the exhaust valve housing of a marine diesel engine according to claim 2, characterized in that: The bottoms of the two templates (12) are slidably connected to the top of the water tank (2).

4. The casting mold for a marine diesel engine exhaust valve housing according to claim 1, characterized in that: The two ends of the bidirectional threaded rod (10) are rotatably connected to the inner wall of the outer shell (1), and the two ends of the sliding rod (13) are rotatably connected to the inner wall of the outer shell (1).

5. The casting mold for the exhaust valve housing of a marine diesel engine according to claim 1, characterized in that: The two ends of the two-way threaded rod (15) are rotatably connected to the inner wall of the outer shell (1), and the two ends of the two sliding rods (18) are rotatably connected to the inner wall of the outer shell (1).

6. The casting mold for a marine diesel engine exhaust valve housing according to claim 1, characterized in that: The outer periphery of the clamping rod (17) is slidably connected to the interior of the template (12).

7. The casting mold for the exhaust valve housing of a marine diesel engine according to claim 1, characterized in that: The rear side of the support plate (20) is fixedly connected to the inner rear wall of the housing (1).

8. The casting mold for the exhaust valve housing of a marine diesel engine according to claim 2, characterized in that: The top of the lifting frame (21) is fixedly connected to the top of the cooling barrel (5), and the top plate (23) is fixedly connected to the upper side of the outer wall of the cooling barrel (5).

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