Mould for manufacturing complex thin-wall pump body casting wax mould

Abstract

The utility model relates to the technical field of wax molds, in particular to a mold for manufacturing a complex thin-wall pump body casting wax mold, which comprises a water-soluble core mold, an accessory mold and a pump body main body mold, the water-soluble core mold consists of a water-soluble core mold upper mold, a water-soluble core mold lower mold and a wax injection mouth mold, a first fixing structure is arranged on the water-soluble core mold lower mold, and a second fixing structure is arranged on the water-soluble core mold lower mold. The accessory mold is composed of an accessory mold upper mold and an accessory mold lower mold, a first wax injection opening, a second fixing structure and an accessory wax mold structure are installed on the accessory mold lower mold, and the pump body main body mold is composed of a pump body main body mold upper mold and a pump body main body mold lower mold. A second wax injection opening and a third fixing structure which are positioned at the parting surface are mounted on the lower mold of the pump body main body mold; a plurality of wax molds are adopted to produce different structures, so that the pump body wax mold with stable performance and perfect structure is produced, and meanwhile, a water-soluble core built-in sliding block is adopted to ensure that a complex cavity or channel is formed in a product, so that the processing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a wax mold, in particular to a wax mold for manufacturing a complex thin-walled pump body casting, belonging to the technical field of wax mold. Background Technique

[0002] The pump body is one of the core components of the pump. Its main function is to accommodate and guide the fluid, enabling it to flow from the inlet to the outlet and ensuring effective control of the pressure and flow rate of the liquid or gas during this process. The pump body is widely used in industrial and civil fields. The investment casting wax mold is a key component in the investment casting process, mainly used to manufacture wax molds, which are used to form sand mold shells and ultimately cast metal parts. In the manufacturing industry, the water-soluble core mold, the accessory mold, and the main body mold each have a unique technical background and play a key role in modern manufacturing technology. The water-soluble core mold, the accessory mold, and the main body mold cooperate with each other in the modern manufacturing process, with a high degree of integration. Their coordinated work ensures the overall quality, structural complexity, and production efficiency of the product.

[0003] Therefore, there is an urgent need for a new type of mold that can not only manufacture the complex external structure of the pump body casting wax mold but also solve the problems of low production efficiency, high production cost, and difficult modeling of the wax mold cavity. Content of the Utility Model

[0004] The purpose of the utility model is to provide a wax mold for manufacturing a complex thin-walled pump body casting to solve the above problems. Multiple wax molds are used for production of different structures, thereby producing a pump body wax mold with stable performance and perfect structure. At the same time, a water-soluble core built-in slider is used to ensure the formation of complex cavities or channels inside the product, improving the processing efficiency.

[0005] The utility model realizes the above object through the following technical solutions. A mold for manufacturing a wax mold of a complex thin-walled pump body casting includes a water-soluble core mold, a fitting mold, and a pump body main mold. The water-soluble core mold for making the water-soluble core is composed of three parts, including an upper mold of the water-soluble core mold, a lower mold of the water-soluble core mold, and a wax injection port mold. A first fixing structure is provided between the upper mold of the water-soluble core mold and the lower mold of the water-soluble core mold. The fitting mold for making the wax mold main fittings is composed of two parts, namely an upper mold of the fitting mold and a lower mold of the fitting mold. A first wax injection port is opened on the parting surface of the upper mold of the fitting mold and the lower mold of the fitting mold. A second fixing structure for shaping the fittings and a fitting wax mold structure are arranged inside the upper mold of the fitting mold and the lower mold of the fitting mold. The pump body main mold for making the wax mold main body is composed of two parts, namely an upper mold of the pump body main mold and a lower mold of the pump body main mold. A second wax injection port is located at the parting surface between the upper mold of the pump body main mold and the lower mold of the pump body main mold. A third fixing structure is provided between the upper mold of the pump body main mold and the lower mold of the pump body main mold, which includes a side-pulling shaping slider for shaping the side of the pump body main body, a hanging ear shaping slider for fixing the upper and lower molds, and a water-soluble core slider. The slider and the mold are spliced by a mortise and tenon structure to play a role in mutual fixation.

[0006] Preferably, the pump body mold is assembled by an upper mold of the pump body main mold and a lower mold of the pump body main mold. A second groove is opened in the lower mold of the pump body main mold, and a pump body main wax mold is cast in the second groove. A third fixing structure is installed on the lower mold of the pump body main mold. The third fixing structure includes a side-pulling shaping slider. The side-pulling shaping slider is slidably connected to the lower mold of the pump body main mold. Two lead screws are rotatably connected to the lower mold of the pump body main mold. The end of the lead screw is threadedly connected with a fixing block. The fixing block is slidably connected to the lower mold of the pump body main mold. Both of the two fixing blocks are in contact with the side-pulling shaping slider.

[0007] Preferably, five hanging ear shaping sliders are connected to the upper mold of the pump body main mold by mortise and tenon. The hanging ear shaping slider is of a cylindrical structure. The hanging ear shaping slider is used for positioning the wax mold position and shaping the hanging ear holes. Four waist-shaped sliders, four hole sliders, and a runner shaping slider are connected to the lower mold of the pump body main mold by mortise and tenon.

[0008] Preferably, a water-soluble core slider is installed in the lower mold of the pump body main mold. The water-soluble core slider is located in the middle of the pump body main wax mold. A second wax injection port is provided at the parting surface between the upper mold of the pump body main mold and the lower mold of the pump body main mold. The second wax injection port is located at the hanging ear on one side of the pump body main wax mold.

[0009] Preferably, the water-soluble core mold is assembled by a water-soluble core mold upper die and a water-soluble core mold lower die. A wax injection orifice mold is installed at the top end of the water-soluble core mold upper die. Both the water-soluble core mold upper die and the water-soluble core mold lower die are of a stepped structure.

[0010] Preferably, the first fixing structure includes a first shaping fixing slider. A first shaping fixing slider is slidably connected within the water-soluble core mold lower die. The end of the first shaping fixing slider is connected to a second shaping fixing slider by mortise and tenon. An internal shaping slider is installed within the water-soluble core mold lower die.

[0011] Preferably, the accessory mold is assembled by an accessory mold upper die and an accessory mold lower die.

[0012] Preferably, the second fixing structure includes a mounting block. A mounting block is slidably connected within the accessory mold lower die. Four accessory shaping sliders are fixedly connected to the mounting block.

[0013] Preferably, a clamping block is slidably connected to the accessory mold lower die. A clamping groove is provided on the mounting block. The end of the clamping block is engaged within the clamping groove. A pull plate is fixedly connected to the end of the clamping block facing away from the clamping groove. A tension spring is fixedly connected between the pull plate and the accessory mold lower die. A sealing groove is formed on the inner wall of the accessory mold lower die. A sealing ring is engaged within the sealing groove. The sealing ring is installed on the mounting block.

[0014] Preferably, the accessory wax mold structure includes a first groove. A first groove is formed on the accessory mold lower die. An accessory wax mold main body is cast within the first groove.

[0015] The beneficial effects of the present utility model are as follows: This set of molds consists of three molds, namely: a water-soluble core mold, an accessory mold, and a pump body main mold. Each wax mold mold is of an upper and lower die structure. The production of this wax mold is jointly shaped by these three molds. First, the water-soluble core of the internal shape of the wax mold is made using the water-soluble core mold. Then, the runner core is placed inside the main mold to shape the main mold. Next, the accessory mold is used to produce the runner part of the wax mold casting. Finally, the main wax mold and the accessory wax mold are bonded to complete the production of the wax mold. The fixation of the molds mainly relies on the shaping sliders and fixing pins to prevent the upper and lower molds from being misaligned. The intermediate sliders and the molds jointly ensure the shaping effect of the wax mold. The accessory mold and the main mold are provided with wax injection orifices at the mold parting surface, and the water-soluble core mold is provided with a wax injection orifice at the upper part of the mold; for complex pump body wax molds, multiple wax mold molds are used to produce different structures, thereby producing a pump body wax mold with stable performance and perfect structure. At the same time, the use of water-soluble core internal sliders ensures the formation of complex cavities or channels inside the product, improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1Schematic connection structure of the water-soluble core mold and the first fixing structure of the present utility model;

[0017] Figure 2 Schematic connection structure of the fitting molding slider and the fitting wax mold body of the present utility model;

[0018] Figure 3 Schematic connection structure of the lower mold of the fitting mold and the mounting block of the present utility model;

[0019] Figure 4 Schematic connection structure of the lower mold of the fitting mold and the clamping block of the present utility model;

[0020] Figure 5 Schematic connection structure of the fixing block and the side-pull molding slider of the present utility model;

[0021] Figure 6 Schematic connection structure of the hanging ear molding slider and the pump body main wax mold of the present utility model;

[0022] Figure 7 Schematic connection structure of the fitting wax mold body and the pump body main wax mold of the present utility model.

[0023] In the figure: 1. Water-soluble core mold; 101. Upper mold of the water-soluble core mold; 102. Lower mold of the water-soluble core mold; 2. Wax injection port mold; 3. First fixing structure; 301. First molding fixing slider; 302. Second molding fixing slider; 303. Built-in molding slider; 4. Fitting mold; 401. Upper mold of the fitting mold; 402. Lower mold of the fitting mold; 5. First wax injection port; 6. Second fixing structure; 601. Mounting block; 602. Fitting molding slider; 603. Clamping block; 604. Card slot; 605. Pulling plate; 606. Pulling spring; 607. Sealing ring; 608. Sealing groove; 7. Fitting wax mold structure; 701. Fitting wax mold body; 702. First groove; 8. Pump body main mold; 801. Upper mold of the pump body main mold; 802. Lower mold of the pump body main mold; 803. Second wax injection port; 9. Third fixing structure; 901. Side-pull molding slider; 902. Lead screw; 903. Fixing block; 904. Hanging ear molding slider; 905. Water-soluble core slider; 906. Oval slider; 907. Hole slider; 908. Runner molding slider; 10. Second groove; 13. Pump body main wax mold. Detailed implementation manners

[0024] The technical solution of the present utility model will be further described below in conjunction with the drawings and through specific embodiments. Among them, the drawings are only for illustrative purposes, showing schematic diagrams rather than physical drawings, and should not be construed as a limitation on this patent; in order to better illustrate the embodiments of the present utility model, some components in the drawings will be omitted, enlarged or reduced, which does not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0025] In the drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and should not be construed as a limitation on this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0026] Please refer to Figures 1-7 As shown, a mold for manufacturing a wax pattern of a complex thin-walled pump body casting includes a water-soluble core mold 1, a fitting mold 4, and a pump body main mold 8. The water-soluble core mold 1 for making the water-soluble core is composed of three parts, including an upper water-soluble core mold 101, a lower water-soluble core mold 102, and a wax injection port mold 2. A first fixing structure 3 is provided between the upper water-soluble core mold 101 and the lower water-soluble core mold 102; the fitting mold 4 for making the wax pattern main body fittings is composed of two parts, namely an upper fitting mold 401 and a lower fitting mold 402. A first wax injection port 5 is opened on the parting surface of the upper fitting mold 401 and the lower fitting mold 402. A second fixing structure 6 for shaping the fittings and a fitting wax pattern structure 7 are provided inside the upper fitting mold 401 and the lower fitting mold 402; the pump body main mold 8 for making the wax pattern main body is composed of two parts, namely an upper pump body main mold 801 and a lower pump body main mold 802. A second wax injection port 803 is located at the parting surface between the upper pump body main mold 801 and the lower pump body main mold 802. A third fixing structure 9 is provided between the upper pump body main mold 801 and the lower pump body main mold 802, which includes a side drawing and shaping slider 901 for shaping the side of the pump body main body, a hanging ear shaping slider 904 for fixing the upper and lower molds, and a water-soluble core slider 905. The sliders and the mold are spliced with a mortise and tenon structure to play a role in mutual fixation.

[0027] As a technical optimization solution of the present utility model, the pump body mold 8 is assembled by the upper mold 801 of the pump body main mold and the lower mold 802 of the pump body main mold. A second groove 10 is formed in the lower mold 802 of the pump body main mold, and a pump body main wax mold 13 is cast in the second groove 10. A third fixing structure 9 is installed on the lower mold 802 of the pump body main mold. The third fixing structure 9 includes a side-pull molding slider 901, and the side-pull molding slider 901 is slidably connected to the lower mold 802 of the pump body main mold. Two lead screws 902 are rotatably connected to the lower mold 802 of the pump body main mold. The end of the lead screw 902 is threadedly connected with a fixing block 903, and the fixing block 903 is slidably connected to the lower mold 802 of the pump body main mold. Both of the two fixing blocks 903 are in contact with the side-pull molding slider 901. The side-pull molding slider 901 is used to fix the upper and lower molds of the pump body mold 8 and mold the pump body main wax mold 13. The arrangement of the lead screw 902 and the fixing block 903 facilitates the fixing and disassembly of the side-pull molding slider 901, making the installation of the side-pull molding slider 901 more stable.

[0028] As a technical optimization solution of the present utility model, five ear-shaped molding sliders 904 are tenoned and mortised on the upper mold 801 of the pump body main mold. The ear-shaped molding sliders 904 are of a cylindrical structure. The ear-shaped molding sliders 904 are used to position the wax mold and mold the ear holes. Four waist-shaped sliders 906, four hole sliders 907 and a runner molding slider 908 are tenoned and mortised in the lower mold 802 of the pump body main mold. The waist-shaped sliders 906 are located at the bottom of the pump body and are used to bond with the cast pump body main wax mold 13 to form a positioning groove for the pump body main wax mold 13, facilitating the later assembly of the accessory wax mold main body 701 and the pump body main wax mold 13. The hole sliders 907 are cylindrical and are used for positioning and fixing. The ear-shaped molding sliders 904 are used to position the pump body main wax mold 13 and mold the ear holes.

[0029] As a technical optimization solution of the present utility model, a water-soluble core slider 905 is installed in the lower mold 802 of the pump body main mold. The water-soluble core slider 905 is located in the middle of the pump body main wax mold 13. A second wax injection port 803 is provided at the parting surface of the upper mold 801 and the lower mold 802 of the pump body main mold. The second wax injection port 803 is located at the ear of the pump body main wax mold 13 on one side. The setting of the water-soluble core slider 905 can ensure the molding of complex structures without damaging the pump body main wax mold 13. The setting of the second wax injection port 803 is used to make the pump body main wax mold 13 by injection molding.

[0030] As a technical optimization solution of the utility model, the water-soluble core mold 1 is assembled by a water-soluble core mold upper mold 101 and a water-soluble core mold lower mold 102. A wax injection port mold 2 is installed at the top end of the water-soluble core mold upper mold 101. Both the water-soluble core mold upper mold 101 and the water-soluble core mold lower mold 102 are of a stepped structure. The first fixing structure 3 includes a first shaping fixing slider 301. The first shaping fixing slider 301 is slidably connected in the water-soluble core mold lower mold 102. The end of the first shaping fixing slider 301 is tenon-mortised to a second shaping fixing slider 302. An internal shaping slider 303 is installed in the water-soluble core mold lower mold 102. The parting surface of the upper and lower molds of the water-soluble core mold 1 is stepped. When the upper and lower molds are assembled and connected, they are tenon-mortised to the first shaping fixing slider 301 and the second shaping fixing slider 302 that connect the upper and lower molds, ensuring the stability of the mold when it is closed. At the same time, the stepped shape is convenient for mold positioning and shaping the internal water-soluble core.

[0031] As a technical optimization solution of the utility model, the accessory mold 4 is assembled by an upper accessory mold 401 and a lower accessory mold 402. A first wax injection port 5 is provided at the parting surface of the upper accessory mold 401 and the lower accessory mold 402. The second fixing structure 6 includes a mounting block 601. The mounting block 601 is slidably connected in the lower accessory mold 402. Four accessory shaping sliders 602 are fixedly connected to the mounting block 601. A clamping block 603 is slidably connected to the lower accessory mold 402. A clamping groove 604 is provided on the mounting block 601. The end of the clamping block 603 is clamped in the clamping groove 604. A pull plate 605 is fixedly connected to the end of the clamping block 603 facing away from the clamping groove 604. A tension spring 606 is fixedly connected between the pull plate 605 and the lower accessory mold 402. A sealing groove 608 is formed on the inner wall of the lower accessory mold 402. A sealing ring 607 is clamped in the sealing groove 608. The sealing ring 607 is installed on the mounting block 601. An accessory wax mold structure 7 is installed in the lower accessory mold 402. The accessory wax mold structure 7 includes a first groove 702. The first groove 702 is formed on the lower accessory mold 402. An accessory wax mold main body 701 is cast in the first groove 702. When making the accessory wax mold, first inject the wax liquid into the mold from the runner at the parting surface of the upper and lower molds of the accessory wax mold. After the wax liquid cools and solidifies, start demolding. First, remove the upper accessory mold 401, and the cooled accessory wax mold main body 701 and the built-in accessory shaping sliders 602 can be seen. Then, pull the clamping block 603 outward from the lower accessory mold 402 to make the clamping block 603 no longer clamped with the clamping groove 604. At this time, the clamping block 603 drives the tension spring 606 to extend through the pull plate 605. Then, pull the accessory shaping slider 602 upward. The accessory shaping slider 602 drives the mounting block 601 to move upward, and at the same time makes the sealing ring 607 no longer clamped with the sealing groove 608. Then, take out the built-in accessory shaping sliders 602 and the mounting block 601. Finally, take out the accessory wax mold main body 701 from the lower accessory mold 402. The clamping block 603 and the clamping groove 604 are used in cooperation to make the disassembly of the accessory shaping sliders 602 convenient, and the four accessory shaping sliders 602 can be taken out simultaneously, making the disassembly or maintenance and replacement operations more convenient and flexible. At the same time, through the cooperation of the sealing ring 607 and the sealing groove 608, the sealing performance between the mounting block 601 and the lower accessory mold 402 is better, so that the casting effect of the accessory wax mold main body 701 is better.

[0032] When the present utility model is in use and during the production of the water-soluble core, first, the water-soluble core liquid is injected from the wax injection port mold 2 and waits for a period of time. First, the first molding fixing slider 301 and the second molding fixing slider 302 are withdrawn from the parting surface between the upper mold 101 of the water-soluble core mold and the lower mold 102 of the water-soluble core mold. Then, the wax injection port mold 2 and the upper mold 101 of the water-soluble core mold are successively removed. Next, the built-in molding slider 303 is taken out. Finally, the molded water-soluble core is taken out. When making the accessory wax mold, first, the wax liquid is injected into the mold from the runner at the parting surface between the upper and lower molds of the accessory wax mold. After the wax liquid cools and solidifies, the mold removal begins. First, the upper mold 401 of the accessory mold is removed, and the cooled accessory wax mold body 701 and the built-in accessory molding slider 602 can be seen. Then, the clamping block 603 is pulled outward on the outside of the lower mold 402 of the accessory mold so that the clamping block 603 no longer engages with the card slot 604. At this time, the clamping block 603 drives the tension spring 606 to elongate through the pull plate 605. Then, the accessory molding slider 602 is pulled upward. The accessory molding slider 602 drives the mounting block 601 to move upward, and at the same time, the sealing ring 607 no longer engages with the sealing groove 608. Then, the built-in accessory molding slider 602 and the mounting block 601 are taken out. Finally, the accessory wax mold body 701 is taken out from the lower mold 402 of the accessory mold. The cooperation of the clamping block 603 and the card slot 604 makes the disassembly of the accessory molding slider 602 convenient, and the four accessory molding sliders 602 can be taken out simultaneously, making the disassembly or repair and replacement operations more convenient and flexible. At the same time, through the cooperation of the sealing ring 607 and the sealing groove 608, the sealing performance between the mounting block 601 and the lower mold 402 of the accessory mold is better, so that the casting effect of the accessory wax mold body 701 is better. When making the pump body main wax mold, first, the water-soluble core slider 905 made by the water-soluble core mold 1 is placed inside the mold. Then, the wax liquid is injected into the mold from the second wax injection port 803 at the parting surface between the upper and lower molds of the pump body main mold 8. After the wax liquid cools and solidifies, the mold removal begins. First, the upper mold 801 of the pump body main mold is removed. Then, the cylindrical hanging ear molding slider 904 is taken out. Then, the screw rods 902 on both sides are rotated in sequence. The screw rods 902 drive the fixed blocks 903 to move in the direction away from the side-pulling molding slider 901. Continuously rotate the screw rods 902 until the fixed blocks 903 no longer abut against the side-pulling molding slider 901. Then, the side-pulling molding slider 901 is pulled outward so that the side-pulling molding slider 901 no longer engages with the lower mold 802 of the pump body main mold. Therefore, the setting of the screw rods 902 and the fixed blocks 903 facilitates the fixing and disassembly of the side-pulling molding slider 901, making the installation of the side-pulling molding slider 901 more stable. Then, the water-soluble core slider 905 is taken out. Next, the runner molding slider 908 is taken out. The pump body main wax mold 13 is taken out from the lower mold 802 of the pump body main mold. Then, the oval-shaped slider 906 and the hole slider 907 at the accessory connection are removed, and the pump body main wax 13 can be obtained.After the accessory wax mold body 701 and the pump body wax mold 13 are completed, the accessory wax mold body 701 and the pump body wax mold 13 are assembled.

[0033] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

[0034] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

Claims

1. A mold for manufacturing a wax pattern of a complex thin-walled pump body casting, comprising a water-soluble core mold (1), a fitting mold (4) and a pump body main mold (8), characterized in that: The water-soluble core mold (1) for making water-soluble cores consists of three parts, including the upper mold (101) of the water-soluble core mold, the lower mold (102) of the water-soluble core mold, and the wax injection port mold (2). A first fixing structure (3) is provided between the upper mold (101) and the lower mold (102) of the water-soluble core mold. The accessory mold (4) for making the wax mold main body accessories consists of two parts, namely the upper mold (401) of the accessory mold and the lower mold (402) of the accessory mold. A first wax injection port (5) is opened on the parting surface of the upper mold (401) and the lower mold (402) of the accessory mold. A second fixing structure (6) for shaping the accessories and an accessory wax mold structure (7) are provided inside the upper mold (401) and the lower mold (402) of the accessory mold. The pump body main mold (8) for making the wax mold main body consists of two parts, namely the upper mold (801) of the pump body main mold and the lower mold (802) of the pump body main mold. A second wax injection port (803) is located at the parting surface between the upper mold (801) and the lower mold (802) of the pump body main mold. A third fixing structure (9) is provided between the upper mold (801) and the lower mold (802) of the pump body main mold, which includes a side-pulling shaping slider (901) for shaping the side of the pump body main, a hanging ear shaping slider (904) for fixing the upper and lower molds, and a water-soluble core slider (905).

2. The mold for manufacturing a wax pattern of a complex thin-walled pump body casting according to claim 1, wherein: The pump body main mold (8) is assembled by the upper mold (801) and the lower mold (802) of the pump body main mold. A second groove (10) is opened in the lower mold (802) of the pump body main mold, and a pump body main wax mold (13) is cast in the second groove (10). A side-pulling shaping slider (901) is slidably connected to the lower mold (802) of the pump body main mold. Two lead screws (902) are rotatably connected to the lower mold (802) of the pump body main mold. The end of the lead screw (902) is threadedly connected with a fixing block (903), and the fixing block (903) is slidably connected to the lower mold (802) of the pump body main mold. Both fixing blocks (903) are in contact with the side-pulling shaping slider (901).

3. The mold for manufacturing a wax pattern of a complex thin-walled pump body casting according to claim 2, characterized in that: Five hanging ear shaping sliders (904) are tenon-mortise connected to the upper mold (801) of the pump body main mold. The hanging ear shaping slider (904) is of a cylindrical structure. Four waist-shaped sliders (906), four hole sliders (907), and a runner shaping slider (908) are tenon-mortise connected inside the lower mold (802) of the pump body main mold.

4. A mold for manufacturing a wax pattern of a complex thin-walled pump body casting according to claim 3, characterized in that: A water-soluble core slider (905) is installed inside the lower mold (802) of the pump body main mold. The water-soluble core slider (905) is located in the middle of the pump body main wax mold (13). The second wax injection port (803) is located at the hanging ear on one side of the pump body main wax mold (13).

5. A mold for manufacturing a wax pattern of a complex thin-walled pump body casting according to claim 1, characterized in that: The water-soluble core mold (1) is assembled by a water-soluble core mold upper die (101) and a water-soluble core mold lower die (102). A wax injection orifice die (2) is installed at the top end of the water-soluble core mold upper die (101). Both the water-soluble core mold upper die (101) and the water-soluble core mold lower die (102) are of a stepped structure.

6. The mold for manufacturing a wax pattern of a complex thin-walled pump body casting according to claim 5, characterized in that: The first fixing structure (3) includes a first shaping fixing slider (301). The first shaping fixing slider (301) is slidably connected in the water-soluble core mold lower die (102). The end of the first shaping fixing slider (301) is connected to a second shaping fixing slider (302) by mortise and tenon. An internal shaping slider (303) is installed in the water-soluble core mold lower die (102).

7. A mold for manufacturing a wax pattern of a complex thin-walled pump body casting according to claim 1, characterized in that: The accessory mold (4) is assembled by an accessory mold upper die (401) and an accessory mold lower die (402).

8. A mold for manufacturing a wax pattern of a complex thin-walled pump body casting according to claim 7, characterized in that: The second fixing structure (6) includes a mounting block (601). The mounting block (601) is slidably connected in the accessory mold lower die (402). Four accessory shaping sliders (602) are fixedly connected to the mounting block (601).

9. A mold for manufacturing a wax pattern of a complex thin-walled pump body casting according to claim 8, characterized in that: A clamping block (603) is slidably connected to the accessory mold lower die (402). A clamping groove (604) is provided on the mounting block (601). The end of the clamping block (603) is clamped in the clamping groove (604). A pull plate (605) is fixedly connected to the end of the clamping block (603) facing away from the clamping groove (604). A tension spring (606) is fixedly connected between the pull plate (605) and the accessory mold lower die (402). A sealing groove (608) is formed on the inner wall of the accessory mold lower die (402). A sealing ring (607) is clamped in the sealing groove (608). The sealing ring (607) is installed on the mounting block (601).

10. A mold for manufacturing a wax pattern of a complex thin-walled pump body casting according to claim 9, characterized in that: The accessory wax mold structure (7) includes a first groove (702). The first groove (702) is formed on the accessory mold lower die (402). An accessory wax mold body (701) is cast in the first groove (702).

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