Casting process and equipment for pressure-bearing alloy valve body of marine copper alloy kingston valve

Abstract

The invention belongs to the technical field of kingston valve pressure-bearing alloy valve body casting process equipment, and discloses a marine copper alloy kingston valve pressure-bearing alloy valve body casting process and equipment which comprises a bottom plate, a first mold is arranged at the top of the bottom plate, and a second mold is movably connected to one side of the first mold; an arc plate is fixedly connected to the top of the bottom plate, through cooperation of a third motor, a movable lead screw, a turbine, a clamping block and other structures, a mold can be better and firmly clamped, the third motor rotates to drive the movable lead screw, a meshing gear ring drives a worm to move forwards, and therefore the mold can be conveniently and rapidly clamped. The transverse rod meshed with the turbine drives the clamping blocks on the two sides to move to adjust the distance between the two clamping blocks, the molds can be better clamped and fixed, compared with a traditional mode that the molds are fixed through bolts, the molds can be firmer and tighter, liquid is prevented from flowing out, and the mold fixing efficiency is improved. And therefore, the effect of firmly clamping the mold is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of casting process equipment for a pressure-bearing alloy valve body of a sea valve, and in particular relates to a casting process and equipment for a pressure-bearing alloy valve body of a marine copper alloy sea valve. Background Art

[0002] Sea valves are mainly used in various systems of ships, such as main drain system, suspension system, snorkel drain system, auxiliary engine centralized seawater cooling system, shaft cooling system, emergency life-saving system, buoyancy adjustment system, steam engine seawater system, diesel engine cooling system, battery cold water system, etc. It is the first valve that directly connects the ship's hull seawater pipeline with the external seawater. It is used to control the entry or discharge of seawater. It is the most critical and representative valve among the many valves used in ship seawater pipelines. Marine copper alloy sea valves mainly include actuators, pressure-bearing alloy valve bodies, valve discs, valve stems, fasteners, etc. This casting process uses two parts of the mold for fixed fitting to form different sea valves for use. However, with the continuous development of the times, the forms of sea valves are becoming more and more diverse, but the device for clamping the mold is relatively single. Therefore, it is imperative to develop a device for clamping the sea valve.

[0003] The existing sea valve casting process equipment is fixed by simple bolts and sealing devices during use, which easily leads to an insufficient firmness when pouring the mold and makes it impossible to make the two molds fit more closely. Therefore, a casting process and equipment for a pressure-bearing alloy valve body of a marine copper alloy sea valve is proposed for the above device. Summary of the invention

[0004] In order to solve the problem in the above background technology that the two molds cannot be better fitted tightly, the present invention provides a casting process and equipment for a pressure-bearing alloy valve body of a marine copper alloy sea valve.

[0005] To achieve the above object, the present invention provides the following technical solution: a casting process for a pressure-bearing alloy valve body of a marine copper alloy sea valve, the casting process being as follows: S1: Mould making: According to the design requirements of the copper alloy sea valve pressure alloy valve body, make a suitable mould. The mould needs to have high temperature resistance to withstand the high temperature of the molten copper alloy, such as refractory ceramic material. Then according to the design drawings of the valve body, make the mould model by mechanical processing or manual carving to ensure that the size and shape of the mould model are consistent with the design drawings; S2: Then make a sand mold according to the mold model, embed the mold model into fine sand, and form an inner cavity shape that is the same as the mold model. Appropriate copper alloy materials need to be used in the melting and casting process to ensure that the casting has ideal performance and density. According to the use environment and performance requirements of the marine sea valve, select appropriate copper alloy materials, such as copper-aluminum alloy, copper-zinc alloy, etc.; S3: Before casting, the copper alloy needs to be melted and poured into the pre-made sand mold. A furnace is prepared. The copper alloy is melted to a suitable pouring temperature by controlling the temperature of the furnace. The molten copper alloy is poured into the furnace and poured into the sand mold through a pouring tool to ensure that the copper alloy fully fills the inner cavity of the sand mold and removes bubbles and impurities. After the copper alloy is poured, a cooling and solidification process is required to ensure the structure and performance of the casting.

[0006] A casting device for a pressure-bearing alloy valve body of a marine copper alloy sea valve comprises a bottom plate, a first mold is arranged on the top of the bottom plate, a second mold is movably connected to one side of the first mold, a circular arc plate is fixedly connected to the top of the bottom plate, a placing frame is slidably connected to the top of the circular arc plate, a semi-arc tooth plate is fixedly connected to the middle of the circular arc plate, a first screw rod is meshed with the semi-arc tooth plate, a first motor is arranged on one side of the first screw rod, a slider is slidably connected to the top of the placing frame, a circular arc slider is fixedly connected to the side of the placing frame close to the circular arc plate, a side plate is fixedly connected to the side of the bottom plate away from the placing frame, a third motor is arranged on one side of the top of the side plate, an output shaft end of the third motor is rotatably connected to a moving screw rod, the moving screw rod is meshed with a gear ring, a meshing gear ring is arranged on one side of the gear ring, a worm is meshed at the bottom of the meshing gear ring, a turbine is meshed with the side of the worm close to the placing frame, a cross bar is fixedly connected to the middle of the turbine, and a clamping block is slidably connected to the upper surface of the cross bar.

[0007] Preferably, the slide block is fixedly connected to the first mold, and a slide groove matched with the slide block is provided on the top of the placement rack.

[0008] Preferably, a matching sliding groove is provided on one side of the arc plate close to the arc slider, and a bolt is threadedly connected to one side of the first mold and the second mold.

[0009] Preferably, a second motor is arranged on the other side of the top of the side plate, and an output shaft end of the second motor is rotatably connected to a first gear.

[0010] Preferably, the first gear is meshed with a large gear, and a rotating rod is fixedly connected to a side of the large gear away from the second motor.

[0011] Preferably, a circular ball block is rotatably connected to the top of the bottom plate near the side plate, and a hydraulic rod is fixedly connected to the top of the circular ball block.

[0012] Preferably, a push block is fixedly connected to a side of the hydraulic rod close to the first mold, and a connecting rod is fixedly connected to a side of the cross bar away from the turbine.

[0013] Preferably, a side of the clamping block away from the first mold is fixedly connected to a support rod, and a side of the support rod away from the clamping block is rotatably connected to the bottom plate.

[0014] Preferably, the two clamping blocks are composed of a C shape, the inner diameter of the clamping block is adapted to the outer diameter of the first mold and the second mold, the gear ring is engaged with the movable screw, a sliding groove is provided on the surface of the middle part of the cross bar, and the clamping block is slidably connected to the sliding groove on one side close to the cross bar.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention facilitates the tilting of the mold through the coordination of structures such as the placement rack, the semi-arc tooth plate, the first screw rod, and the arc slider setting, so that the liquid injected into the mold can fully circulate in the mold. The first motor rotates to drive the first screw rod, so that the first screw rod drives the placement rack to operate along the trajectory of the semi-arc tooth plate. While the placement rack is operating, the arc slider close to one side of the arc plate moves accordingly, so that the overall placement rack can be tilted on both sides on the semi-arc tooth plate, thereby achieving the effect of being able to adjust the mold to the left and right so that the liquid in the mold can fully flow to every corner.

[0016] The present invention facilitates better clamping and fixing of the mold through the coordination of structures such as the third motor, the movable screw, the turbine, and the clamping block setting. The third motor rotates to drive the movable screw, so that the meshing gear ring drives the worm forward, and the cross bar meshing with the turbine drives the clamping blocks on both sides to move and adjust the distance between the two clamping blocks, so as to better clamp and fix the mold. Compared with the traditional fixation between the two molds by bolts, the molds can be more firmly and tightly connected to avoid the outflow of liquid, thereby achieving the effect of firmly clamping the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the front cross-section structure of the present invention; Figure 3 This is an exploded view of the placement rack of the present invention; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 It is a schematic diagram of the structure of the hydraulic rod of the present invention; Figure 6 It is an exploded view of the side panel of the present invention.

[0018] In the figure: 1, bottom plate; 2, first mold; 3, second mold; 4, bolt; 5, placement rack; 6, arc plate; 7, semi-arc gear plate; 8, first motor; 9, first screw rod; 10, arc slider; 11, slider; 12, side plate; 13, second motor; 14, third motor; 15, first gear; 16, large gear; 17, moving screw rod; 18, gear ring; 19, meshing gear ring; 20, rotating rod; 21, worm; 22, cross rod; 23, turbine; 24, round ball block; 25, hydraulic rod; 26, push block; 27, support rod; 28, connecting rod; 29, clamping block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figures 1 to 6 As shown, the present invention provides a casting process for a marine copper alloy sea valve pressure-bearing alloy valve body, and the casting process is as follows: S1: Mould making: According to the design requirements of the copper alloy sea valve pressure alloy valve body, make a suitable mould. The mould needs to have high temperature resistance to withstand the high temperature of the molten copper alloy, such as refractory ceramic material. Then according to the design drawings of the valve body, make the mould model by mechanical processing or manual carving to ensure that the size and shape of the mould model are consistent with the design drawings; S2: Then make a sand mold according to the mold model, embed the mold model into fine sand, and form an inner cavity shape that is the same as the mold model. Appropriate copper alloy materials need to be used in the melting and casting process to ensure that the casting has ideal performance and density. According to the use environment and performance requirements of the marine sea valve, select appropriate copper alloy materials, such as copper-aluminum alloy, copper-zinc alloy, etc.; S3: Before casting, the copper alloy needs to be melted and poured into the pre-made sand mold. A furnace is prepared. The copper alloy is melted to a suitable pouring temperature by controlling the temperature of the furnace. The molten copper alloy is poured into the furnace and poured into the sand mold through a pouring tool to ensure that the copper alloy fully fills the inner cavity of the sand mold and removes bubbles and impurities. After the copper alloy is poured, a cooling and solidification process is required to ensure the structure and performance of the casting.

[0021] During the casting process, low-pressure casting and directional solidification technology are used. The specific low-pressure casting process is as follows: Ambient temperature: Keep the working environment temperature between 20℃ and 25℃ to reduce the impact of environmental factors on the casting process; Molten metal temperature: The temperature of the copper alloy after melting is controlled at 1250°C to 1280°C to maintain good fluidity; Low-pressure casting pressure: adjust the pressure between 20 and 50 kPa to ensure that the molten metal fills the cavity stably without turbulence; Pouring speed: Use an electronic control system to set the pouring speed at 5-8KG / s to prevent erosion and bubble generation caused by the rapid entry of molten metal into the mold; Vacuum degree: Creating a vacuum environment (-95kPa) inside the mold cavity helps reduce pores and increase filling rate; A casting device for a marine copper alloy sea valve pressure-bearing alloy valve body, comprising a bottom plate 1, a first mold 2 is arranged on the top of the bottom plate 1, a second mold 3 is movably connected to one side of the first mold 2, a circular arc plate 6 is fixedly connected to the top of the bottom plate 1, a placement rack 5 is slidably connected to the top of the circular arc plate 6, a semi-arc tooth plate 7 is fixedly connected to the middle of the circular arc plate 6, a first screw rod 9 is meshed with the semi-arc tooth plate 7, a first motor 8 is arranged on one side of the first screw rod 9, a slider 11 is slidably connected to the top of the placement rack 5, and a side of the placement rack 5 close to the circular arc plate 6 is fixedly connected to the semi-arc tooth plate 7. An arc slider 10 is connected, and a side plate 12 is fixedly connected to the side of the bottom plate 1 away from the placement rack 5. A third motor 14 is arranged on one side of the top of the side plate 12. The output shaft end of the third motor 14 is rotatably connected to a moving screw 17. The moving screw 17 is meshed with a gear ring 18. A meshing gear ring 19 is arranged on one side of the gear ring 18. A worm 21 is meshed at the bottom of the meshing gear ring 19. A turbine 23 is meshed on the side of the worm 21 close to the placement rack 5. A cross bar 22 is fixedly connected to the middle of the turbine 23, and a clamping block 29 is slidably connected to the upper surface of the cross bar 22.

[0022] The first mold 2 and the second mold 3 are placed on the placement rack 5. After placement, the two molds are initially fixed by the bolts 4. Then, the third motor 14 is turned on to rotate the third motor 14 to drive the moving screw 17. The moving screw 17 rotates while driving the gear ring 18 meshing with the moving screw 17. The gear ring 18 rotates to drive the meshing gear ring 19 on one side. Then, the meshing gear ring 19 is meshed with the worm 21, so that the worm 21 slides out on the surface of the rotating rod 20. After the worm 21 slides out, the meshing meshing gear ring 19 drives the cross bar 22 to rotate, and then the two clamping blocks 29 are driven to adjust the spacing through the slide groove on the surface of the cross bar 22, so that the clamping blocks 29 can fix the first mold 2 and the second mold 3. After fixation, the mold is poured with liquid. When pouring the liquid, keep the working environment temperature between 20℃ and 25℃ to reduce the impact of environmental factors on the casting process; control the temperature of the copper alloy after melting at 1250°C to 1280°C to maintain good fluidity; adjust the pressure between 20 and 50kPa to ensure that the molten metal fills the cavity stably without turbulence; use an electronic control system to set the pouring speed at 5-8KG / s to prevent erosion and bubble generation caused by the rapid entry of the molten metal into the mold; Creating a vacuum environment (-95kPa) inside the mold cavity helps reduce pores and improve filling rate; using high-precision sensors to monitor the temperature and pressure of the molten metal, as well as the pouring speed, and adjusting in real time through the computer system to ensure the stability and consistency of the casting process; The video monitoring system is used to observe the flow of molten metal and the filling condition of the cavity, and adjust the parameters manually or automatically when necessary. After pouring, the first motor 8 is turned on to drive the first screw 9 to rotate. While the first screw 9 rotates, it engages with the semi-arc tooth plate 7, so the overall placement rack 5 is driven to tilt on both sides through the trajectory of the semi-arc tooth plate 7. The arc slider 10 at the bottom of the placement rack 5 synchronously slides on the arc plate 6 at an angle on both sides. By tilting the first mold 2 and the second mold 3 on both sides, the liquid injected into the mold can be fully circulated in the mold, thereby achieving a better shaping effect.

[0023] like Figure 1 , Figure 2 As shown, the slider 11 is fixedly connected to the first mold 2, a slide groove matching the slider 11 is opened on the top of the placement frame 5, a matching slide groove is opened on the side of the arc plate 6 close to the arc slider 10, a bolt 4 is threadedly connected to one side of the first mold 2 and the second mold 3, a second motor 13 is arranged on the other side of the top of the side plate 12, and the output shaft end of the second motor 13 is rotatably connected to the first gear 15.

[0024] The above scheme is adopted: the slider 11 is fixedly connected to the first mold 2, so that the first mold 2 and the second mold 3 can be better withdrawn and disassembled through the setting of the slider 11 when pushing later, and a slide groove adapted to the slider 11 is provided on the top of the placement frame 5, which is convenient for the slider 11 to move better, and the first mold 2 and the second mold 3 can be fixed and stuck through the setting between the slider 11 and the slide groove, so as to avoid instability when the mold is tilted on both sides, and a matching slide groove is provided on the side of the arc plate 6 close to the arc slider 10, so that the placement frame 5 can slide on the arc plate 6 through the setting of the arc slider 10, and the first mold 2 and the second mold 3 are threadedly connected with bolts 4 on one side, and the bolts 4 can play a simple fixed combination effect between the two molds, and the other side of the top of the side plate 12 is provided with a second motor 13, and the second motor 13 can drive the first gear 15 to rotate through the setting of the first motor 13, so that the subsequent mold can also drive the clamping block 29 to tilt synchronously when the mold is tilted, and the clamping block 29 does not need to be disassembled to achieve the effect of tilting on both sides.

[0025] like Figure 5 , Figure 6 As shown, the first gear 15 is meshed with a large gear 16, and a rotating rod 20 is fixedly connected to the side of the large gear 16 away from the second motor 13, and a circular ball block 24 is rotatably connected to the top of the bottom plate 1 near the side plate 12, and a hydraulic rod 25 is fixedly connected to the top of the circular ball block 24, and a push block 26 is fixedly connected to the side of the hydraulic rod 25 near the first mold 2, and a connecting rod 28 is fixedly connected to the side of the cross bar 22 away from the turbine 23.

[0026] The above scheme is adopted: the first gear 15 is meshed with the large gear 16, so that the large gear 16 can be driven to rotate synchronously while the first gear 15 rotates, and the large gear 16 is fixedly connected to the side away from the second motor 13. The rotating rod 20 can be driven to rotate synchronously while the large gear 16 rotates. The rotation of the rotating rod 20 can drive the meshing gear ring 19 to rotate on the surface of the worm 21, so that when the two sides of the overall placement frame 5 are tilted, the clamping block 29 can also be synchronously tilted on both sides through the cooperation between the meshing gear ring 19 and the worm 21, and the bottom plate 1 is close to the bottom plate 1. A circular ball block 24 is rotatably connected to the top of the proximal plate 12, so that the hydraulic rod 25 fixedly connected to the circular ball block 24 can be adjusted and rotated while tilting on both sides of the placement frame 5 and the clamping block 29. The hydraulic rod 25 fixedly connected to the circular ball block 24 can drive the push block 26 to push the first mold 2 and the second mold 3 from the placement frame 5, which is convenient for disassembly after injection molding. A connecting rod 28 is fixedly connected to the side of the cross bar 22 away from the turbine 23. The connecting rod 28 has the effect of connecting to the cross bar 22, which is convenient for driving a coordination between the hydraulic rod 25 and the support rod 27.

[0027] like Figure 3 , Figure 5 As shown, the side of the clamping block 29 away from the first mold 2 is fixedly connected to the support rod 27, and the side of the support rod 27 away from the clamping block 29 is rotatably connected to the base plate 1. The two clamping blocks 29 are composed of a C shape, and the inner diameter of the clamping block 29 is adapted to the outer diameter of the first mold 2 and the second mold 3. The gear ring 18 is engaged with the movable screw 17, and a slide groove is provided on the surface of the middle part of the cross bar 22. The side of the clamping block 29 close to the cross bar 22 is slidably connected to the slide groove.

[0028] The above scheme is adopted: the side of the clamping block 29 away from the first mold 2 is fixedly connected with the support rod 27, and the support rod 27 can play an auxiliary supporting effect on the clamping block 29 to prevent the clamping block 29 from being unstable. The side of the support rod 27 away from the clamping block 29 is rotatably connected to the bottom plate 1, so that the support rod 27 can also achieve the effect of synchronous tilting when the overall device is tilted. The two clamping blocks 29 are composed of a C shape, so that the first mold 2 and the second mold 3 have an enclosing clamping effect, which can ensure that the tightness between the two molds can be more stable and fit, and there will be no effect of liquid outflow. The inner diameter of the block 29 is matched with the outer diameter of the first mold 2 and the second mold 3, so that the two molds can be better clamped and fitted, avoiding the situation that the clamping block 29 and the mold are not tightly fitted and affecting the clamping effect. The ring gear 18 is meshed with the movable screw 17, so that the ring gear 18 can be driven to operate while the movable screw 17 rotates. When the ring gear 18 operates, it can also drive the meshing ring gear 19 to operate synchronously. A sliding groove is provided on the surface of the middle part of the cross bar 22, so that the two clamping blocks 29 can be adjusted to the distance between the two clamping blocks 29 through the sliding groove on the cross bar 22, so that the mold can be better clamped and fixed.

[0029] The working principle and use process of the present invention: First, the first mold 2 and the second mold 3 are placed on the placement rack 5, and are placed through the slider 11 and the slide groove. After placement, the two molds are initially fixed by the bolts 4, and then the third motor 14 is turned on to rotate and drive the moving screw 17. The moving screw 17 rotates and drives the gear ring 18 meshing with the moving screw 17, so that the gear ring 18 rotates to drive the meshing gear ring 19 on one side, and then the meshing gear ring 19 is meshed with the worm 21, so that the worm 21 slides out through the surface of the rotating rod 20. After the worm 21 slides out The meshing meshing gear ring 19 drives the cross bar 22 to rotate, and then the two clamping blocks 29 are driven to adjust the spacing through the slide groove on the surface of the cross bar 22, so that the clamping blocks 29 can have a fixed clamping effect on the first mold 2 and the second mold 3. After fixing, the liquid is poured into the mold. After pouring, the first motor 8 is turned on to drive the first motor 8 to drive the first screw rod 9 to rotate. While the first screw rod 9 rotates, it meshes with the semi-arc tooth plate 7, so it drives the entire placement rack 5 to tilt on both sides through the trajectory of the semi-arc tooth plate 7, and the arc at the bottom of the placement rack 5 The slider 10 synchronously slides on the arc plate 6 at an angle on both sides. By tilting the first mold 2 and the second mold 3 at both sides, the liquid injected into the mold can be fully circulated in the mold, so as to achieve a better shaping effect. While the first mold 2 and the second mold 3 are tilted at both sides, the second motor 13 arranged on the other side of the top of the side plate 12 can drive the first gear 15 to rotate. When the first gear 15 rotates, it drives the large gear 16 to rotate synchronously. The large gear 16 is fixedly connected to a rotating rod 20 on the side away from the second motor 13. , the rotating rod 20 can be driven to rotate synchronously while the large gear 16 rotates. The rotation of the rotating rod 20 can drive the meshing gear ring 19 to rotate on the surface of the worm 21, so that when the two sides of the overall placement frame 5 are tilted, the clamping block 29 can also be synchronously tilted on both sides through the cooperation between the meshing gear ring 19 and the worm 21. The bottom plate 1 is rotatably connected to the top of the side plate 12 with a circular ball block 24. The hydraulic rod 25 fixedly connected to the circular ball block 24 can drive the push block 26 to push the first mold 2 and the second mold 3 from the placement frame 5, which is convenient for disassembly after injection molding.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] 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 casting process for a pressure-bearing alloy valve body of a marine copper alloy sea valve, characterized in that: The casting process is as follows: S1: Mould making: According to the design requirements of the copper alloy sea valve pressure alloy valve body, make a suitable mould. The mould needs to have high temperature resistance to withstand the high temperature of the molten copper alloy, such as refractory ceramic material. Then according to the design drawings of the valve body, make the mould model by mechanical processing or manual carving to ensure that the size and shape of the mould model are consistent with the design drawings; S2: Then make a sand mold according to the mold model, embed the mold model into fine sand, and form an inner cavity shape that is the same as the mold model. Appropriate copper alloy materials need to be used in the melting and casting process to ensure that the casting has ideal performance and density. According to the use environment and performance requirements of the marine sea valve, select appropriate copper alloy materials, such as copper-aluminum alloy and copper-zinc alloy; S3: Before casting, the copper alloy needs to be melted and poured into the pre-made sand mold. A furnace is prepared. The copper alloy is melted to a suitable pouring temperature by controlling the temperature of the furnace. The molten copper alloy is poured into the furnace and poured into the sand mold through a pouring tool to ensure that the copper alloy fully fills the inner cavity of the sand mold and removes bubbles and impurities. After the copper alloy is poured, a cooling and solidification process is required to ensure the structure and performance of the casting.

2. A casting device for a marine copper alloy sea valve pressure-bearing alloy valve body, applied to the casting process of a marine copper alloy sea valve pressure-bearing alloy valve body as claimed in claim 1, comprising a bottom plate (1), characterized in that: The top of the base plate (1) is provided with a first mold (2), one side of the first mold (2) is movably connected to a second mold (3), the top of the base plate (1) is fixedly connected to a circular arc plate (6), the top of the circular arc plate (6) is slidably connected to a placement rack (5), the middle of the circular arc plate (6) is fixedly connected to a semi-arc tooth plate (7), the semi-arc tooth plate (7) is meshed with a first screw rod (9), one side of the first screw rod (9) is provided with a first motor (8), the top of the placement rack (5) is slidably connected to a slider (11), the side of the placement rack (5) close to the circular arc plate (6) is fixedly connected to an arc slider (10), and the base plate (1) is provided with a first motor (8). ) is fixedly connected to a side plate (12) away from the placement rack (5), a third motor (14) is arranged on one side of the top of the side plate (12), an output shaft end of the third motor (14) is rotatably connected to a movable screw (17), the movable screw (17) is meshed with a gear ring (18), a meshing gear ring (19) is arranged on one side of the gear ring (18), a worm (21) is meshed at the bottom of the meshing gear ring (19), a turbine (23) is meshed on the side of the worm (21) close to the placement rack (5), a cross bar (22) is fixedly connected to the middle of the turbine (23), and a clamping block (29) is slidably connected to the upper surface of the cross bar (22).

3. The casting equipment for the pressure-bearing alloy valve body of a marine copper alloy sea valve according to claim 2, characterized in that: The slide block (11) is fixedly connected to the first mold (2), and a slide groove matching the slide block (11) is provided on the top of the placement frame (5).

4. The casting equipment for the pressure-bearing alloy valve body of a marine copper alloy sea valve according to claim 2, characterized in that: A matching sliding groove is provided on one side of the arc plate (6) close to the arc slider (10), and a bolt (4) is threadedly connected to one side of the first mold (2) and the second mold (3).

5. The casting equipment for the pressure-bearing alloy valve body of a marine copper alloy sea valve according to claim 2, characterized in that: A second motor (13) is provided on the other side of the top of the side plate (12), and an output shaft end of the second motor (13) is rotatably connected to a first gear (15).

6. The casting equipment for the pressure-bearing alloy valve body of a marine copper alloy sea valve according to claim 5, characterized in that: The first gear (15) is meshed with a large gear (16), and a rotating rod (20) is fixedly connected to a side of the large gear (16) away from the second motor (13).

7. The casting equipment for the pressure-bearing alloy valve body of a marine copper alloy sea valve according to claim 2, characterized in that: A circular ball block (24) is rotatably connected to the top of the bottom plate (1) near the side plate (12), and a hydraulic rod (25) is fixedly connected to the top of the circular ball block (24).

8. The casting equipment for the pressure-bearing alloy valve body of a marine copper alloy sea valve according to claim 7, characterized in that: A push block (26) is fixedly connected to a side of the hydraulic rod (25) close to the first mold (2), and a connecting rod (28) is fixedly connected to a side of the cross bar (22) away from the turbine (23).

9. The casting equipment for the pressure-bearing alloy valve body of a marine copper alloy sea valve according to claim 2, characterized in that: A side of the clamping block (29) away from the first mould (2) is fixedly connected to a support rod (27), and a side of the support rod (27) away from the clamping block (29) is rotatably connected to the bottom plate (1).

10. The casting equipment for the pressure-bearing alloy valve body of a marine copper alloy sea valve according to claim 2, characterized in that: The two clamping blocks (29) are C-shaped, the inner diameter of the clamping block (29) is compatible with the outer diameter of the first mold (2) and the second mold (3), the gear ring (18) is meshed with the movable screw (17), a sliding groove is provided on the surface of the middle part of the cross bar (22), and the side of the clamping block (29) close to the cross bar (22) is slidably connected to the sliding groove.

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