Anti-oxidation plunger pump rotor casting forming mold

Abstract

The invention discloses an anti-oxidation plunger pump rotor casting forming mold, and relates to the technical field of metal casting. Comprising a power component and an integrated component, the top of the integrated component is fixedly connected with the bottom of the power component, the integrated component comprises a cooling assembly, the top of the cooling assembly is fixedly connected with the bottom of the power component, and the outer wall of the cooling assembly is fixedly connected with a mounting assembly and a forming component; according to the forming die, through the design of the casting assembly, the flow guide sleeve and the partition plate, the flowing path of molten metal is optimized, the situation that the molten metal directly impacts the wall of a cavity and splashes and turbulent flows are generated is avoided, the cavity can be evenly and stably filled with the molten metal, and the forming efficiency is improved. And air in the cavity is exhausted in time through the arrangement of the ventilation grooves, the defects of air holes, shrinkage porosity and the like in a casting are reduced, and the purpose of the anti-oxidation plunger pump rotor casting forming mold is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of metal casting, in particular to an anti-oxidation plunger pump rotor casting mold. Background Art

[0002] In industrial production, plunger pumps are an important type of fluid conveying equipment, widely used in many fields such as petroleum, chemical industry, metallurgy, etc. The quality and performance of plunger pump rotors as their core components directly affect the working efficiency and service life of the plunger pumps. Therefore, how to efficiently and high-quality cast plunger pump rotors has always been a focus of attention in the industry.

[0003] Traditional plunger pump rotor casting molds have many shortcomings during the molten metal pouring process. The molten metal often directly impacts the cavity wall, which is prone to splashing and turbulence, resulting in the inability of the molten metal to fill the cavity evenly and smoothly. This makes it easy for defects such as pores and shrinkage to appear inside the casting, seriously affecting the density and mechanical properties of the casting. Moreover, during the molten metal filling process, the gas in the cavity is difficult to discharge, further aggravating the generation of defects such as pores and reducing the product qualification rate. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the shortcomings of the prior art, the present invention provides an anti-oxidation plunger pump rotor casting mold, which solves the problem of reducing the generation of defects such as pores and shrinkage inside the casting, improving the density and mechanical properties of the casting, and optimizing the molten metal flow and exhaust design to shorten the time for the molten metal to fill the cavity, thereby improving the efficiency of a single casting.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an anti-oxidation plunger pump rotor casting forming mold, comprising: a power component, the power component is used to drive the mold to move by sliding; an integrated component, the top of the integrated component is fixedly connected to the bottom of the power component, the integrated component is used to reduce the temperature of the mold by increasing the contact area with the air, the integrated component includes a cooling component, the top of the cooling component is fixedly connected to the bottom of the power component, the cooling component is used to reduce the temperature of the mold by circulating liquid, the outer wall of the cooling component is fixedly connected to the mounting component, the mounting component is used to install molds of different sizes by plugging; a molding component, the outer wall of the molding component is fixedly connected to the outer wall of the integrated component, the molding component is used to reduce oxidation of the casting by blocking external oxygen, The molding component includes a casting component, the outer wall of the casting component is fixedly connected to the outer wall of the mounting component, the outer wall of the casting component is fixedly connected to an oxygen barrier component, and the oxygen barrier component is used to isolate the casting component from the outside air by pressing and sealing; the casting component includes a main half mold, the outer wall of the main half mold is pressed and sealed with a secondary half mold, and pouring ports are opened in the wall at the top of the main half mold and the wall at the top of the secondary half mold, the inner wall of the main half mold and the inner wall of the secondary half mold are fixedly connected to a guide sleeve, the outer wall of the guide sleeve is fixedly connected to a partition, and a breathable groove is opened in the wall of the guide sleeve, the power component includes a fixed plate, the outer wall of the fixed plate is fixedly connected to a hydraulic component, and the hydraulic component includes a hydraulic cylinder, hydraulic oil is injected into the hydraulic cylinder, the outside of the hydraulic cylinder is connected to a hydraulic pump through a hydraulic pipe, and the inner wall of the hydraulic cylinder is connected to a piston rod through a piston.

[0008] Preferably, the cooling assembly includes a fixed shell, the inner wall of the fixed shell is fixedly connected to the water pump assembly through a bracket, the water outlet end of the water pump assembly is fixedly connected to a water pumping square pipe through a connecting pipe, the outer wall of the connecting pipe is fixedly connected to the water outlet end of the water pump assembly, the outer wall of the fixed shell is fixedly connected to a heat sink, and the heat sink is arranged in a linear array along the outer wall of the fixed shell, the outer wall of the top of the fixed shell is fixedly connected to a limiting rod, the outer wall of the limiting rod is fixedly connected to a return pipe through a fixing ring, and the inner wall of the bottom of the fixing ring is fixedly connected to the outer wall of the limiting rod.

[0009] Preferably, the inner wall of the top of the fixed collar is fixedly connected to the outer wall of the return pipe, the outer wall of the return pipe is fixedly connected to the inner wall of the top of the fixed shell, a cooling groove is opened in the wall of the top of the fixed shell, and the cooling grooves are arranged in a linear array along the outer wall of the fixed shell, the top of the fixed shell is fixedly connected to the bottom of the fixed plate, and the outer wall of the fixed shell is fixedly connected to the outer wall of the water pump square pipe.

[0010] Preferably, the mounting assembly includes a mounting shell, and the mounting shell is provided in two groups, and the inner wall of each group of the mounting shells is plugged with a mounting block, the outer wall of one group of the mounting shells is fixedly connected to the piston rod of the hydraulic assembly, and the outer wall of the other group of the mounting shells is fixedly connected to the outer wall of the fixed shell, one group of the mounting blocks is fixedly connected to the outer wall of the secondary half-mold at one side away from the mounting shell, and the other group of the mounting blocks is fixedly connected to the outer wall of the main half-mold at one side away from the mounting shell.

[0011] Preferably, the outer wall of the bottom of one group of the mounting shells is fixedly connected to the outer wall of the water pumping square tube through a pipe, the outer wall of the water pumping square tube is fixedly connected to the outer wall of the bottom of another group of the mounting shells through a pipe, the outer wall of the top of one group of the mounting shells is fixedly connected to the outer wall of the return pipe through a pipe, the outer wall of the pipe is fixedly connected to the outer wall of the return pipe, and the outer wall of the top of another group of the mounting shells is fixedly connected to the inner wall of the return pipe through a pipe.

[0012] Preferably, the oxygen-blocking component includes a secondary shell, the inner wall of the secondary shell is press-sealed with the main shell through an insert plate, and the outer wall of the insert plate is fixedly connected to the inner wall of the secondary shell, the inner wall of the bottom of the secondary shell is fixedly connected to a return air branch pipe, the top of the return air branch pipe is provided with a return air main pipe through a clamping sleeve, the clamping sleeve is used to limit the position of the return air branch pipe and the return air main pipe, and the inner wall of the clamping sleeve is sleeved with the outer wall of the return air main pipe, the inner wall of the top of the secondary shell is fixedly connected to the intake main pipe through an air pipe, and the inner wall of the bottom of the main shell is fixedly connected to the return air pipe.

[0013] Preferably, the top of the return air pipe is fixedly connected to the inner wall of the return air main pipe, the inner wall of the intake main pipe is fixedly connected to the inner wall of the top of the main shell through the air pipe, the inner wall of the main shell is fixedly connected to the outer wall of the air pipe, the outer wall of the main shell is fixedly connected to the outer wall of the main half mold, the outer wall of the secondary shell is fixedly connected to the outer wall of the secondary half mold, the outer wall of the return air branch pipe is fixedly connected to a limiting ring, the outer wall of the bottom of the limiting ring is fixedly connected to the top of the secondary shell, the side of the plug plate away from the secondary shell is pressed and sealed with the inner wall of the main shell, the inner wall of the top of the secondary shell and the inner wall of the top of the main shell are both fixedly connected with a fixing ring plate, and the outer wall of the top of the secondary shell and the outer wall of the top of the main shell are both fixedly connected with a guide cover.

[0014] (III) Beneficial effects

[0015] The present invention provides an anti-oxidation plunger pump rotor casting mold, which has the following beneficial effects:

[0016] (1) The anti-oxidation plunger pump rotor casting mold optimizes the flow path of the molten metal by setting the casting components, the guide sleeve and the partition design, avoids the molten metal directly impacting the cavity wall and generating splashes and turbulence, so that the molten metal can fill the cavity evenly and smoothly. The setting of the air permeable groove timely discharges the gas in the cavity, reduces the generation of defects such as pores and shrinkage inside the casting, improves the density and mechanical properties of the casting, and the optimized molten metal flow and exhaust design shortens the time for the molten metal to fill the cavity and improves the efficiency of a single casting. At the same time, the shearing notch reserved at the partition facilitates the separation of multiple rotor components, reduces the time and difficulty of subsequent processing steps, and further improves the overall production efficiency.

[0017] (ii) The anti-oxidation plunger pump rotor casting mold has a cooling component. The cooling system can promptly remove the heat generated by the injection of molten metal into the mold, thereby preventing the mold from thermal fatigue, deformation or even cracking due to overheating, thereby extending the service life of the mold. At the same time, the stable mold temperature helps to ensure the molding quality of the casting and reduce the dimensional deviation and surface defects of the casting caused by mold temperature fluctuations. The fast heat exchange design, such as increasing the contact connection between the mounting shell and the mounting block and using an aluminum alloy heat sink, can accelerate the heat dissipation and circulation of the coolant, which enables the mold to recover to a temperature suitable for the next casting more quickly, shortening the casting cycle and improving the production efficiency per unit time.

[0018] (III) The anti-oxidation plunger pump rotor casting mold is provided with an installation component, and the installation component adopts a plug-in matching method to realize the rapid installation and disassembly of molds of different sizes, so that the enterprise can quickly adjust the production specifications according to market demand and produce various models of plunger pump rotors. This enhances the enterprise's responsiveness to market changes, improves the flexibility and adaptability of production, and the rapid mold change operation reduces the time and labor cost required for mold change, and reduces the production stoppage loss caused by mold change. In addition, a set of molds can be adapted to main half molds and auxiliary half molds of various specifications, which reduces the enterprise's investment in molds and improves the utilization rate of molds.

[0019] (IV) The anti-oxidation plunger pump rotor casting mold forms a positive pressure environment by setting an oxygen barrier component and filling it with inert gas, and adopts a plug plate and a sealing rubber ring to enhance the sealing effect. The oxygen barrier component can isolate the casting component from contact with external oxygen and prevent the casting from oxidation, which improves the surface quality and corrosion resistance of the casting, especially for the casting of some metal materials that are sensitive to oxidation. The gas recovery system composed of the return pipe, the return branch pipe and the return main pipe realizes the recycling of inert gas and reduces the consumption cost of inert gas. At the same time, it also reduces the impact of inert gas emissions on the environment, reflecting the concept of environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a cross-sectional view of the present invention;

[0022] Figure 3 It is a schematic structural diagram of the casting assembly of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of A of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the cooling assembly of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the installation assembly of the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the oxygen barrier assembly of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the plug board of the present invention;

[0028] Fig. 9 It is a schematic diagram of the structure of B of the present invention.

[0029] In the figure: 1, power component; 2, integrated component; 3, molding component; 4, fixing plate; 5, hydraulic component; 6, casting component; 7, oxygen barrier component; 8, installation component; 9, cooling component; 61, main half mold; 62, auxiliary half mold; 63, pouring port; 64, guide sleeve; 65, partition; 66, air vent; 91, fixed shell; 92, water pump assembly; 93, water pump square pipe; 94, cooling trough; 95, heat sink; 96, limit rod; 97, fixed collar; 98, return pipe; 81, installation shell; 82, installation block; 71, return air main pipe; 72, intake air main pipe; 73, return air branch pipe; 74, return air pipe; 75, limit collar; 76, guide cover; 77, auxiliary shell; 78, main shell; 79, ferrule; 710, plug plate; 711, fixed ring plate. DETAILED DESCRIPTION

[0030] 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.

[0031] See also Figure 1-9The present invention provides a technical solution: an anti-oxidation plunger pump rotor casting molding die, comprising: a power component 1, the power component 1 is used to drive the mold to move by sliding; an integrated component 2, the top of the integrated component 2 is fixedly connected to the bottom of the power component 1, the integrated component 2 is used to reduce the temperature of the mold by increasing the contact area with the air, the integrated component 2 includes a cooling component 9, the top of the cooling component 9 is fixedly connected to the bottom of the power component 1, the cooling component 9 is used to reduce the temperature of the mold by circulating liquid, the outer wall of the cooling component 9 is fixedly connected to the installation component 8, the installation component 8 is used to install molds of different sizes by plugging; a molding component 3, the outer wall of the molding component 3 is fixedly connected to the outer wall of the integrated component 2, the molding component 3 is used to reduce the oxidation of the casting by blocking external oxygen, the molding component 3 includes a casting The casting assembly 6 comprises a main half-mold 61, the outer wall of the main half-mold 61 is press-sealed with a secondary half-mold 62, the casting assembly 6 is composed of the main half-mold 61 and the secondary half-mold 62, the two are press-sealed by the power component 1 to form a complete cavity, a pouring port 63 is provided in the wall at the top of the main half-mold 61 and in the wall at the top of the secondary half-mold 62, the inner wall of the main half-mold 61 and the inner wall of the secondary half-mold 62 are fixedly connected with a guide sleeve 64, the outer wall of the guide sleeve 64 is fixedly connected with a partition 65, and the wall of the guide sleeve 64 is provided with a venting groove 66, the power component 1 comprises a fixed plate 4, the outer wall of the fixed plate 4 is fixedly connected with a hydraulic assembly 5.

[0032] The cooling assembly 9 includes a fixed shell 91, the inner wall of the fixed shell 91 is fixedly connected to the water pump assembly 92 through a bracket, the water outlet end of the water pump assembly 92 is fixedly connected to a water pump square pipe 93 through a connecting pipe, the outer wall of the fixed shell 91 is fixedly connected to a heat sink 95, and the heat sink 95 is arranged in a linear array along the outer wall of the fixed shell 91, the outer wall of the top of the fixed shell 91 is fixedly connected to a limit rod 96, the outer wall of the limit rod 96 is fixedly connected to a return pipe 98 through a fixed collar 97, and the inner wall of the bottom of the fixed collar 97 is fixedly connected to the outer wall of the limit rod 96, and the inner wall of the top of the fixed collar 97 is fixedly connected to the return pipe 98. The outer wall is fixedly connected, the outer wall of the return pipe 98 is fixedly connected to the inner wall of the top of the fixed shell 91, a cooling groove 94 is opened in the wall of the top of the fixed shell 91, and the cooling groove 94 is arranged in a linear array along the outer wall of the fixed shell 91. The coolant after heat dissipation eventually flows back to the cooling groove 94, and the heat dissipation of the coolant is increased again through the cooling groove 94 to complete a cooling cycle. During the entire cooling process, the water pump assembly 92 continues to work and continuously circulates the coolant. The top of the fixed shell 91 is fixedly connected to the bottom of the fixed plate 4, and the outer wall of the fixed shell 91 is fixedly connected to the outer wall of the water pump square pipe 93.

[0033] The mounting assembly 8 includes a mounting shell 81, which is provided with two groups, and the inner wall of each group of mounting shells 81 is plugged with a mounting block 82, the outer wall of one group of mounting shells 81 is fixedly connected to the piston rod of the hydraulic assembly 5, the outer wall of the other group of mounting shells 81 is fixedly connected to the outer wall of the fixed shell 91, one side of one group of mounting blocks 82 away from the mounting shell 81 is fixedly connected to the outer wall of the auxiliary half mold 62, and the other side of the other group of mounting blocks 82 away from the mounting shell 81 is fixedly connected to the outer wall of the main half mold 61, the outer wall of the bottom of one group of mounting shells 81 is fixedly connected to the outer wall of the water pumping square pipe 93 through a pipeline, and the outer wall of the water pumping square pipe 93 is connected to the outer wall of the bottom of the other group of mounting shells 81 through a pipeline Fixed connection, the outer wall of the top of one group of mounting shells 81 is fixedly connected to the outer wall of the return pipe 98 through a pipe, and the outer wall of the top of another group of mounting shells 81 is fixedly connected to the inner wall of the return pipe 98 through a pipe. The operator pulls out the mounting blocks 82 corresponding to the main half mold 61 and the auxiliary half mold 62 that need to be replaced from the mounting shell 81, and the mounting blocks 82 and the mounting shell 81 are plug-fitted. The mounting blocks 82 corresponding to the new main half mold 61 and the auxiliary half mold 62 are inserted into the mounting shell 81. The coolant absorbs the heat transferred from the mold, and the temperature gradually increases. By increasing the contact connection between the mounting shell 81 and the mounting block 82, the heat exchange rate between the mounting shell 81 and the mounting block 82 is increased.

[0034] The oxygen barrier assembly 7 comprises a secondary housing 77, the inner wall of which is sealed by a main housing 78 through a plug plate 710, and the outer wall of the plug plate 710 is fixedly connected to the inner wall of the secondary housing 77, the inner wall of the bottom of the secondary housing 77 is fixedly connected to a return air branch pipe 73, the top of the return air branch pipe 73 is sleeved with a return air main pipe 71 through a sleeve 79, and the inner wall of the sleeve 79 is sleeved with the outer wall of the return air main pipe 71, and the inner wall of the top of the secondary housing 77 is fixedly connected to the return air branch pipe 73 through a sleeve 79. The air intake manifold 72 and the inner wall of the bottom of the main casing 78 are fixedly connected with the return air pipe 74, the top of the return air pipe 74 is fixedly connected to the inner wall of the return air manifold 71, the inner wall of the air intake manifold 72 is fixedly connected to the inner wall of the top of the main casing 78 through the air pipe, the outer wall of the main casing 78 is fixedly connected to the outer wall of the main half mold 61, the outer wall of the auxiliary casing 77 is fixedly connected to the outer wall of the auxiliary half mold 62, and the outer wall of the return air branch pipe 73 is fixedly connected to the limiting collar 75, the limiting collar 75 The outer wall of the bottom is fixedly connected to the top of the secondary housing 77, and the side of the plug plate 710 away from the secondary housing 77 is pressed and sealed with the inner wall of the main housing 78. The inner wall of the top of the secondary housing 77 and the inner wall of the top of the main housing 78 are both fixedly connected with a fixing ring plate 711, and the outer wall of the top of the secondary housing 77 and the outer wall of the top of the main housing 78 are both fixedly connected with a guide cover 76. The space between the main housing 78 and the secondary housing 77 is filled with inert gas through the intake manifold 72. When the inert gas is filled, the space between the main housing 78 and the secondary housing 77 forms a positive pressure environment. Due to the positive pressure, the outside air cannot enter this closed space, thereby isolating the casting assembly 6 from the contact with the outside oxygen. The secondary housing 77 and the main housing 78 are pressed and sealed by the plug plate 710. The outer wall of the plug plate 710 is tightly fitted with the inner wall of the secondary housing 77, and a sealing rubber ring is arranged on the surface of the plug plate 710 to further enhance the sealing effect.

[0035] The power component 1 is the power source for the entire mold movement. It consists of a fixed plate 4 and a hydraulic component 5. The fixed plate 4 plays a role of stable support and provides a solid foundation for the entire mold system. In actual work, when the mold needs to be opened and closed, the hydraulic component 5 starts to work, and the hydraulic pump in the hydraulic component 5 transports the hydraulic oil to the hydraulic cylinder through the oil pipe.

[0036] Taking the mold closing process as an example, the hydraulic pump supplies oil to the rodless chamber of the hydraulic cylinder. The hydraulic oil pushes the piston forward under the action of pressure. The movement of the piston is transmitted to a set of mounting shells 81 fixedly connected to the piston rod of the hydraulic component 5 through the piston rod. Since the mounting shell 81 is fixedly connected to the auxiliary half-mold 62 through the mounting block 82, the auxiliary half-mold 62 slides toward the main half-mold 61 together with the mounting shell 81, ensuring that the auxiliary half-mold 62 is smoothly and accurately pressed and sealed with the main half-mold 61 to form a complete cavity, thus preparing for subsequent casting work.

[0037] When the casting is completed and the mold needs to be opened to take out the casting, the hydraulic pump changes the oil supply direction and supplies oil to the rod chamber of the hydraulic cylinder. At this time, the hydraulic oil pushes the piston to move in the opposite direction, driving the auxiliary half mold 62 away from the main half mold 61, thereby realizing the opening action of the mold.

[0038] The cooling assembly 9 in the integrated component 2 is a key part to ensure the normal working temperature of the mold. The cooling assembly 9 is mainly composed of a fixed shell 91, a water pump assembly 92, a water pump square pipe 93, a cooling groove 94, a heat sink 95, a limit rod 96, a fixed ring 97 and a return pipe 98.

[0039] After the mold starts working, as the molten metal is injected, the mold temperature gradually rises. In order to prevent the mold from being damaged or affecting the quality of the casting due to overheating, the cooling system starts to start, and the motor in the water pump assembly 92 drives the impeller to rotate at high speed. Under the action of the impeller, the coolant in the cooling groove 94 is sucked into the water inlet of the water pump assembly 92.

[0040] After being pressurized by the water pump assembly 92, the coolant is transported to the water pump square tube 93 through the connecting pipe. The water pump square tube 93 is a square structure with a large internal cross-sectional area, which can ensure that the coolant flows smoothly therein. After the coolant flows out of the water pump square tube 93, it enters the bottom of the two groups of mounting shells 81 through the pipeline.

[0041] Since the mounting shell 81 is closely connected to the main half mold 61 and the auxiliary half mold 62 through the mounting block 82, when the coolant flows inside the mounting shell 81, it fully exchanges heat with the mold. The coolant absorbs the heat transferred from the mold, and the temperature gradually increases. By increasing the contact connection between the mounting shell 81 and the mounting block 82, the heat exchange speed between the mounting shell 81 and the mounting block 82 is increased.

[0042] The coolant after absorbing heat flows out from the pipe on the top of the mounting shell 81 and enters the return pipe 98. The return pipe 98 is fixed on the limit rod 96 by a fixing ring 97 to ensure its stable position. When the coolant flows in the return pipe 98, the heat sink 95 arranged in a linear array on the outer wall of the fixed shell 91 plays an important role. The heat sink 95 is made of aluminum alloy. The heat of the coolant is transferred to the heat sink 95 through the wall of the return pipe 98. The heat sink 95 increases the contact area between the coolant and the air, thereby accelerating the dissipation of heat.

[0043] After the heat is dissipated, the coolant eventually flows back to the cooling tank 94, and the heat dissipation of the coolant is increased again through the cooling tank 94, completing a cooling cycle. During the entire cooling process, the water pump assembly 92 continues to work and continuously circulates the coolant.

[0044] The mounting assembly 8 is composed of two sets of mounting shells 81 and mounting blocks 82, and its main function is to realize the rapid installation and removal of molds of different sizes.

[0045] When it is necessary to replace the main half mold 61 and the auxiliary half mold 62 of different sizes, first adjust the hydraulic assembly 5 to a suitable position so that the auxiliary half mold 62 is separated from the main half mold 61 by a certain distance. Then, the operator pulls out the mounting blocks 82 corresponding to the main half mold 61 and the auxiliary half mold 62 that need to be replaced from the mounting shell 81, and the mounting blocks 82 corresponding to the new main half mold 61 and the auxiliary half mold 62 are plug-fitted to the mounting shell 81, and inserts the mounting blocks 82 corresponding to the new main half mold 61 and the auxiliary half mold 62 into the mounting shell 81.

[0046] The casting assembly 6 in the molding part 3 is the core part for completing the casting of the plunger pump rotor. The casting assembly 6 consists of a main half mold 61 and a secondary half mold 62, which are pressed and sealed through the power component 1 to form a complete cavity.

[0047] Before pouring the molten metal, the operator needs to preheat the mold to ensure that the molten metal can flow smoothly and fill the entire cavity after being injected into the cavity. After the mold is preheated, the molten metal is injected into the cavity through the ladle from the pouring port 63 at the top of the main half mold 61 and the auxiliary half mold 62. The molten metal first enters the guide sleeve 64 under the action of gravity. The guide sleeve 64 is made of high-temperature resistant and high thermal conductivity material. Its inner wall is smooth and can guide the molten metal to flow smoothly into the cavity, avoid the molten metal directly impacting the cavity wall, and reduce the generation of splashing and turbulence.

[0048] The partition 65 on the outer wall of the guide sleeve 64 further optimizes the flow path of the molten metal. The cross-section of the partition 65 is trapezoidal. In the process of the molten metal filling the cavity, the gas in the cavity needs to be discharged in time, otherwise defects such as pores will be formed inside the casting. The air permeable groove 66 opened in the wall of the guide sleeve 64 plays a key role. As the molten metal is continuously injected, the gas in the cavity is discharged to the outside of the mold through the air permeable groove 66. When the casting is completed, the casting is taken out and the multiple groups of rotor components can be easily separated through the shear cut reserved at the partition 65.

[0049] The oxygen barrier component 7 provides anti-oxidation protection for the casting process, ensuring that the casting is formed in a low-oxygen or oxygen-free environment. The oxygen barrier component 7 includes a secondary casing 77, a main casing 78, an insert plate 710, a return air branch pipe 73, a return air main pipe 71, a sleeve 79, an intake main pipe 72, a return air pipe 74, a limit ring 75, a fixed ring plate 711 and a guide cover 76.

[0050] After the molten metal is poured, inert gas is filled into the space between the main shell 78 and the auxiliary shell 77 through the air intake main pipe 72. When the inert gas is filled, a positive pressure environment is formed between the main shell 78 and the auxiliary shell 77. Due to the positive pressure, outside air cannot enter this closed space, thereby isolating the casting component 6 from the contact with external oxygen. The auxiliary shell 77 and the main shell 78 are pressed and sealed by the plug plate 710. The outer wall of the plug plate 710 is tightly fitted with the inner wall of the auxiliary shell 77, and a sealing rubber ring is provided on the surface of the plug plate 710 to further enhance the sealing effect.

[0051] During the casting process, with the injection of molten metal and the heating of the mold, the gas pressure in the main shell 78 and the auxiliary shell 77 will change. In order to maintain the stability of the internal pressure and realize the recycling of the inert gas, the excess inert gas is discharged through the return pipe 74. The return pipe 74 is connected to the inner wall of the bottom of the main shell 78. The gas flows in the return pipe 74 and then flows into the return main pipe 71 through the return branch pipe 73. The return branch pipe 73 is connected to the return main pipe 71 through the ferrule 79. The ferrule 79 can ensure the sealing and stability of the connection.

[0052] The limiting ring 75 is fixed to the outer wall of the return air branch pipe 73, and its bottom is connected to the top of the auxiliary casing 77, which plays the role of fixing and supporting the return air branch pipe 73. The fixing ring plate 711 is installed on the top inner wall of the auxiliary casing 77 and the main casing 78, which can enhance the structural strength of the casing, prevent the casing from deformation under pressure, and guide the poured molten metal. The guide cover 76 is installed on the top outer wall of the auxiliary casing 77 and the main casing 78, and its function is also to guide the poured molten metal. It should be noted that before replacing the main half mold 61 and the auxiliary half mold 62, the sleeve 79 on the return air branch pipe 73 and the return air pipe 74 must be removed to separate the return air main pipe 71 from the return air branch pipe 73 and the return air pipe 74, and the intake main pipe 72 also needs to be separated from the auxiliary casing 77 and the main casing 78.

[0053] 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. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0054] 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. An anti-oxidation plunger pump rotor casting mold, characterized in that: include: A power component (1), the power component (1) is used to drive the mold to move by sliding; An integrated component (2), the top of the integrated component (2) being fixedly connected to the bottom of the power component (1), the integrated component (2) being used to reduce the temperature of the mold by increasing the contact area with the air, the integrated component (2) comprising a cooling component (9), the top of the cooling component (9) being fixedly connected to the bottom of the power component (1), the cooling component (9) being used to reduce the temperature of the mold by circulating liquid, the outer wall of the cooling component (9) being fixedly connected to a mounting component (8), the mounting component (8) being used to mount molds of different sizes by plugging; A molding component (3), wherein the outer wall of the molding component (3) is fixedly connected to the outer wall of the integrated component (2), the molding component (3) is used to reduce oxidation of the casting by blocking external oxygen, the molding component (3) comprises a casting component (6), the outer wall of the casting component (6) is fixedly connected to the outer wall of the mounting component (8), the outer wall of the casting component (6) is fixedly connected to an oxygen-blocking component (7), and the oxygen-blocking component (7) is used to isolate the casting component (6) from external air by means of a press-fit seal; The casting assembly (6) comprises a main half mold (61), the outer wall of the main half mold (61) is pressed and sealed with a secondary half mold (62), a pouring port (63) is provided in the wall at the top of the main half mold (61) and in the wall at the top of the secondary half mold (62), a guide sleeve (64) is fixedly connected to the inner wall of the main half mold (61) and the inner wall of the secondary half mold (62), a partition plate (65) is fixedly connected to the outer wall of the guide sleeve (64), and a venting groove (66) is provided in the wall of the guide sleeve (64).

2. The anti-oxidation plunger pump rotor casting mold according to claim 1, characterized in that: The power component (1) comprises a fixing plate (4), and the outer wall of the fixing plate (4) is fixedly connected to a hydraulic assembly (5).

3. The anti-oxidation plunger pump rotor casting mold according to claim 1, characterized in that: The cooling assembly (9) comprises a fixed shell (91), the inner wall of the fixed shell (91) is fixedly connected to a water pump assembly (92) via a bracket, the water outlet end of the water pump assembly (92) is fixedly connected to a water pump square pipe (93) via a connecting pipe, the outer wall of the fixed shell (91) is fixedly connected to a heat sink (95), and the heat sink (95) is arranged in a linear array along the outer wall of the fixed shell (91), the outer wall of the top of the fixed shell (91) is fixedly connected to a limit rod (96), the outer wall of the limit rod (96) is fixedly connected to a return pipe (98) via a fixed collar (97), and the inner wall of the bottom of the fixed collar (97) is fixedly connected to the outer wall of the limit rod (96).

4. The anti-oxidation plunger pump rotor casting mold according to claim 3, characterized in that: The inner wall of the top of the fixed collar (97) is fixedly connected to the outer wall of the return pipe (98), and the outer wall of the return pipe (98) is fixedly connected to the inner wall of the top of the fixed shell (91). A cooling groove (94) is provided in the wall of the top of the fixed shell (91), and the cooling grooves (94) are arranged in a linear array along the outer wall of the fixed shell (91).

5. The anti-oxidation plunger pump rotor casting mold according to claim 3, characterized in that: The top of the fixed shell (91) is fixedly connected to the bottom of the fixed plate (4), and the outer wall of the fixed shell (91) is fixedly connected to the outer wall of the water pump square pipe (93).

6. The anti-oxidation plunger pump rotor casting mold according to claim 1, characterized in that: The mounting assembly (8) comprises a mounting shell (81), two groups of the mounting shell (81) are provided, and a mounting block (82) is inserted into the inner wall of each group of the mounting shell (81).

7. The anti-oxidation plunger pump rotor casting mold according to claim 6, characterized in that: The outer wall of one group of the mounting shells (81) is fixedly connected to the piston rod of the hydraulic assembly (5), the outer wall of another group of the mounting shells (81) is fixedly connected to the outer wall of the fixed shell (91), the side of one group of the mounting blocks (82) away from the mounting shells (81) is fixedly connected to the outer wall of the auxiliary half mold (62), and the side of another group of the mounting blocks (82) away from the mounting shells (81) is fixedly connected to the outer wall of the main half mold (61).

8. The anti-oxidation plunger pump rotor casting mold according to claim 6, characterized in that: The outer wall of the bottom of one group of the installation shells (81) is fixedly connected to the outer wall of the water pump square pipe (93) through a pipe, the outer wall of the water pump square pipe (93) is fixedly connected to the outer wall of the bottom of another group of the installation shells (81) through a pipe, the outer wall of the top of one group of the installation shells (81) is fixedly connected to the outer wall of the return pipe (98) through a pipe, and the outer wall of the top of another group of the installation shells (81) is fixedly connected to the inner wall of the return pipe (98) through a pipe.

9. The anti-oxidation plunger pump rotor casting mold according to claim 1, characterized in that: The oxygen-blocking component (7) comprises a secondary casing (77), the inner wall of which is press-sealed with a main casing (78) via an insert plate (710), and the outer wall of the insert plate (710) is fixedly connected to the inner wall of the secondary casing (77), the inner wall of the bottom of the secondary casing (77) is fixedly connected to a return air branch pipe (73), the top of the return air branch pipe (73) is sleeved with a return air main pipe (71) via a sleeve (79), and the inner wall of the sleeve (79) is sleeved with the outer wall of the return air main pipe (71), the inner wall of the top of the secondary casing (77) is fixedly connected to an intake main pipe (72) via an air pipe, and the inner wall of the bottom of the main casing (78) is fixedly connected to a return air pipe (74).

10. The anti-oxidation plunger pump rotor casting mold according to claim 9, characterized in that: The top of the return air pipe (74) is fixedly connected to the inner wall of the return air main pipe (71); the inner wall of the intake air main pipe (72) is fixedly connected to the inner wall of the top of the main casing (78) through the air pipe; the outer wall of the main casing (78) is fixedly connected to the outer wall of the main half mold (61); the outer wall of the auxiliary casing (77) is fixedly connected to the outer wall of the auxiliary half mold (62); the outer wall of the return air branch pipe (73) is fixedly connected to a limiting collar (75); the limiting collar (75) is fixedly connected to the outer wall of the auxiliary half mold (62); The outer wall of the bottom of the positioning ring (75) is fixedly connected to the top of the secondary casing (77); the side of the plug plate (710) away from the secondary casing (77) is pressed and sealed with the inner wall of the main casing (78); the inner wall of the top of the secondary casing (77) and the inner wall of the top of the main casing (78) are both fixedly connected with a fixing ring plate (711); the outer wall of the top of the secondary casing (77) and the outer wall of the top of the main casing (78) are both fixedly connected with a guide cover (76).

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