Wax mold for manufacturing complex thin-wall pump body casting in water pump field

Abstract

The utility model provides a wax mould for manufacturing a complex thin-wall pump body casting in the field of water pumps, and relates to the field of wax moulds for investment casting. The mold solves the problems that a mold in the prior art not only can meet the requirement for manufacturing the outer complex structure of a thin-wall water pump body casting wax mold, but also can solve the problems that the production efficiency is low, the production cost is high and the like when a wax mold cavity is modeled. The assembling efficiency and the assembling accuracy of the wax injection mold are improved, the upper mold body and the lower mold body are each of a hollow structure, the inner wall shape of each upper mold body and the inner wall shape of each lower mold body are matched with the outer wall shape of a water pump, the wax mold is made of a soluble medium-temperature wax material, the shape of each wax mold is consistent with the shape of a spiral blade of the water pump, and the wax mold is fixed in the mold body through a specific positioning device. And it is ensured that the position of the water pump in the mold body is accurate, so that the water pump can have good manufacturing precision in the subsequent manufacturing process.

Description

Technical Field

[0001] The utility model belongs to the field of investment casting wax pattern molds, and particularly relates to a wax pattern mold for manufacturing complex thin-walled pump body castings in the field of water pumps. Background Art

[0002] A water pump is a machine that transports liquids or pressurizes liquids. It transfers the mechanical energy of the prime mover or other external energy to the liquid, increasing the energy of the liquid. It is mainly used to transport liquids including water, oil, acid-base solutions, emulsions, suspension emulsions, and liquid metals, etc. A thin-walled water pump refers to a water pump with a thin-walled design for the pump body part. This design can reduce the weight of the pump body on the basis of ensuring a certain strength, improving the portability and installation flexibility of the water pump.

[0003] The investment casting wax pattern mold is a key component in the investment casting process. It is mainly used to manufacture wax patterns, and then form a sand mold shell through the wax patterns and finally cast metal parts. The mold is generally made of carbon steel and high-grade aluminum alloy. These materials are easy to process and at the same time provide the necessary durability to withstand repeated use. The mold is designed to allow molten wax to flow under extreme pressure so that it can solidify into a wax pattern. The double-sided mold is called a template and is commonly used in automatic wax injection machines, which can produce thousands of molds every day. The mold can include simple single-cavity tools or complex multi-cavity tools with automatic ejectors to meet the work requirements of different batches. For manufacturing complex cavities inside the wax pattern, choosing a suitable molding method is beneficial to improving production efficiency and reducing production costs. In the past, enterprises often chose water-soluble water-soluble cores for the interior of thin-walled wax pattern cavities, which had a certain impact on production efficiency and production costs.

[0004] Therefore, the existing molds cannot both meet the requirement of manufacturing wax patterns with complex external structures for thin-walled water pump bodies and solve the problems of low production efficiency and high production costs for wax pattern cavity modeling.

[0005] Therefore, in view of the deficiencies of the above solutions in actual production and implementation, they are corrected and improved. At the same time, in the spirit of pursuing excellence and with the assistance of professional knowledge and experience, and after various ingenious ideas and tests, the present utility model is created. A wax pattern mold for manufacturing complex thin-walled pump body castings in the field of water pumps is provided, which is used to solve the problems that the existing molds can both meet the requirement of manufacturing wax patterns with complex external structures for thin-walled water pump bodies and solve the problems of low production efficiency and high production costs for wax pattern cavity modeling. Summary of the Utility Model

[0006] The utility model provides a wax pattern mold for manufacturing complex thin-walled pump body castings in the field of water pumps, which solves the problems that the existing molds can both meet the requirement of manufacturing wax patterns with complex external structures for thin-walled water pump bodies and solve the problems of low production efficiency and high production costs for wax pattern cavity modeling.

[0007] The technical solution of the present utility model is realized as follows. A wax mold for manufacturing complex thin-walled pump body castings in the field of water pumps includes an upper mold. A lower mold is installed at the bottom end of the upper mold, and a protrusion is fixedly connected to the outside of the upper mold. The protrusions are respectively a left pressing slider A and a right pressing slider B. The lower mold is connected to the upper mold in a closed mold manner, and a protrusion is fixedly connected to the outside of the lower mold. The protrusion is a left pressing slider B and a right pressing slider B. Among them, the left pressing slider A and the left pressing slider B are connected, and the right pressing slider A on the right is matched with the right pressing slider B fixedly connected to the right end face of the lower mold. A wax mold is installed inside the upper mold and the lower mold:

[0008] As a preferred embodiment, a connecting slider is installed inside the lower mold, and the connecting slider is of a pull-out structure and is located on the right side of the wax mold.

[0009] As a preferred embodiment, a left runner modeling slider is installed on the left side of the connecting slider, and the left runner modeling slider is located inside the lower mold.

[0010] As a preferred embodiment, a left core-pulling slider is installed inside the connecting slider, and a central water tank modeling slider is installed inside the lower mold. The central water tank modeling slider is located on the left side of the left core-pulling slider.

[0011] As a preferred embodiment, an L-shaped runner modeling slider is installed inside the lower mold, and the L-shaped runner modeling slider is connected to the central water tank modeling slider arranged in the lower mold.

[0012] As a preferred embodiment, a right runner modeling slider is installed inside the lower mold. A right core-pulling slider is installed inside the right runner modeling slider, a central core-pulling slider is installed inside the central water tank modeling slider, and a central baffle slider is installed at the front end of the central core-pulling slider.

[0013] After adopting the above technical solution, the beneficial effects of the present utility model are:

[0014] 1. In the present utility model, through the setting of the riveting structure of multiple sliders and the use of sliders with mortise and tenon structures for assembly, this design realizes the replacement of the water-soluble core to complete the modeling of the wax mold of the past complex thin-walled water pump body casting compared with the traditional mold. It not only improves the production efficiency, reduces the production cost, but also has a lower cost, meeting the concept of sustainable development.

[0015] 2. In the present utility model, by providing a positioning groove on the central baffle slider and a positioning protrusion on the upper die, the assembly efficiency and assembly accuracy of the wax injection mold are improved. Moreover, both the upper die and the lower die body are hollow structures, and the shape of their inner walls matches the shape of the outer wall of the water pump. The wax mold is made of a soluble medium-temperature wax material, and its shape is consistent with the shape of the spiral blade of the water pump. The wax mold is fixed in the mold body through a specific positioning device to ensure its accurate position in the mold body, enabling the subsequent production of the water pump to also have good manufacturing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 Schematic diagram of the mold closing structure of the wax mold mold of the present utility model;

[0018] Figure 2 Schematic diagram of the combined structure of the wax mold mold and the wax mold of the wax mold mold of the present utility model;

[0019] Figure 3 Schematic diagram of the core pulling sequence structure of the wax mold mold of the present utility model;

[0020] Figure 4 Schematic diagram of the top view structure of the wax mold of the wax mold mold of the present utility model;

[0021] Figure 5 Schematic diagram of the front view structure of the wax mold of the wax mold mold of the present utility model;

[0022] Figure 6 Schematic diagram of the left view structure of the wax mold of the wax mold mold of the present utility model;

[0023] In the figure, 1. Upper die; 2. Lower die; 3. Left pressing slider A; 4. Left pressing slider B; 5. Right pressing slider A; 6. Right pressing slider B; 7. Wax mold; 8. Connecting slider; 9. Left runner modeling slider; 10. Left core pulling slider; 11. Central water trough modeling slider; 12. L-shaped runner modeling slider; 13. Right runner modeling slider; 14. Right core pulling slider; 15. Central core pulling slider; 16. Central baffle slider. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] As Figures 1 - 6 shown, a wax mold for manufacturing complex thin-walled pump body castings in the field of water pumps includes: an upper mold 1, a lower mold 2 is installed at the bottom end of the upper mold 1, and a protrusion is fixedly connected to the outside of the upper mold 1. The protrusions are respectively a left pressing slider A3 and a right pressing slider B6. The lower mold 2 is connected to the upper mold 1 in a closed mold manner, and a protrusion is fixedly connected to the outside of the lower mold 2. The protrusion is a left pressing slider B4 and a right pressing slider B6. Among them, the left pressing slider A3 and the left pressing slider B4 are connected, and the right pressing slider A5 on the right is matched with the right pressing slider B6 fixedly connected to the right end face of the lower mold 2. A wax mold 7 is installed inside the upper mold 1 and the lower mold 2. A right runner modeling slider 13 is installed inside the lower mold 2, and a right core-pulling slider 14 is installed inside the right runner modeling slider 13. A central water tank modeling slider 11 is installed inside the central core-pulling slider 15, and a central baffle slider 16 is installed at the front end of the central core-pulling slider 15.

[0026] Among them, a connecting slider 8 is installed inside the lower mold 2, and the connecting slider 8 is of a pull-out structure. The connecting slider 8 is located on the right side of the wax mold 7. A left runner modeling slider 9 is installed on the left side of the connecting slider 8, and the left runner modeling slider 9 is located inside the lower mold 2.

[0027] Among them, a left core-pulling slider 10 is installed inside the connecting slider 8, a central water tank modeling slider 11 is installed inside the lower mold 2, the central water tank modeling slider 11 is located on the left side of the left core-pulling slider 10, and an L-shaped runner modeling slider 12 is installed inside the lower mold 2. The L-shaped runner modeling slider 12 is connected to the central water tank modeling slider 11 arranged in the lower mold 2.

[0028] When in use, when assembling the mold of the present invention, first place the right runner modeling slider 13 at the runner of the lower mold 2, and the right runner modeling slider 13 is supported at the external flange of the runner; then splice and organize the L-shaped runner modeling slider 12 and the right runner modeling slider 13, and align the modeling slider with the runner water tank.

[0029] Then, the right core-pulling slider 14 is fixed to the right runner modeling slider 13 by mortise and tenon combination, and the center core-pulling slider 15 is fixed to the center water tank modeling slider 11 by mortise and tenon combination, and then the connecting slider 8 is placed at the left runner connection, and then the connecting slider 8 is connected to the left core-pulling slider 10, and the left runner modeling slider 9 is fixed to the left core-pulling slider 10 by mortise and tenon combination, and then the center baffle slider 16 is fitted and fixed to the convex block of the upper mold 1, and the center core-pulling slider 15 is also connected, and then multiple center water tank modeling sliders 11 are respectively assembled with the center baffle slider 16 and the left runner modeling slider 9;

[0030] Finally, the left pressure slider A3, the left pressure slider B4, the right pressure slider A5 and the right pressure slider B6 are respectively installed on the left and right sides of the upper mold 1 and the lower mold 2, and assembled with the left core-pulling slider 10 and the connecting slider 8, so that the assembly of the mold can be completed;

[0031] Then, the wax injection gun is aimed at the wax injection port of the pouring channel to inject wax, and a cooling medium is introduced into the cooling pipe within a specified time to promote the molding of the wax mold 7.

[0032] When the wax mold 7 is cooled and formed and demolded, first remove the left pressure slider A3, the left pressure slider B4, the right pressure slider A5 and the right pressure slider B6 at the left and right ends from the upper mold 1 and the lower mold 2, then open the upper mold 1, and then pull out the center baffle slider 16 from the lower mold 2, and then pull out the center water tank molding slider 11 in the order of small to large, after taking out the connecting slider 8, pull out the left core-pulling slider 10, so that the left mortise and tenon structure is in contact, after the mortise and tenon structure is in contact, take out the left runner molding slider 9 from the left runner in turn; after pulling out the right core-pulling slider 14, so that the right mortise and tenon structure is in contact, take out the right runner molding slider 13 from the right runner in turn; after taking out the center core-pulling slider 15, so that the center mortise and tenon structure is in contact, take out the L-shaped runner molding slider 12 from the water pump tank in turn;

[0033] Finally, the wax mold 7 is manually taken out from the lower mold 2. Figure 5 , Figure 6 Shown are three views of the wax model 7 after it is taken out.

Claims

1. A wax mold for manufacturing complex thin-walled pump castings in the field of water pumps, characterized in that: The invention comprises an upper mold (1), a lower mold (2) is installed at the bottom end of the upper mold (1), and a protrusion is fixedly connected to the outer side of the upper mold (1), and the protrusions are respectively a left pressure slider A (3) and a right pressure slider B (6), and the lower mold (2) is connected to the upper mold (1) in a mold-closing manner, and a protrusion is fixedly connected to the outer side of the lower mold (2), and the protrusions are respectively a left pressure slider B (4) and a right pressure slider B (6), wherein the left pressure slider A (3) and the left pressure slider B (4) are connected, and the right pressure slider A (5) located on the right side matches the right pressure slider B (6) fixedly connected to the right end surface of the lower mold (2), and wax molds (7) are installed on the inner sides of the upper mold (1) and the lower mold (2).

2. A wax mold for manufacturing complex thin-walled pump body castings in the field of water pumps according to claim 1, characterized in that: A connecting slider (8) is installed inside the lower mold (2), and the connecting slider (8) is a pull-out structure, and the connecting slider (8) is located on the right side of the wax mold (7).

3. A wax mold for manufacturing complex thin-walled pump body castings in the field of water pumps according to claim 2, characterized in that: A left flow channel modeling slider (9) is installed on the left side of the connecting slider (8), and the left flow channel modeling slider (9) is located at the inner side of the lower mold (2).

4. A wax mold for manufacturing complex thin-walled pump body castings in the field of water pumps according to claim 3, characterized in that: A left core-pulling slider (10) is installed inside the connecting slider (8), and a central water tank molding slider (11) is installed on the inner side of the lower mold (2), and the central water tank molding slider (11) is located on the left side of the left core-pulling slider (10).

5. A wax mold for manufacturing complex thin-walled pump body castings in the field of water pumps according to claim 1, characterized in that: An L-shaped flow channel shaping slider (12) is installed inside the lower mold (2), and the L-shaped flow channel shaping slider (12) is connected to a central water tank shaping slider (11) arranged in the lower mold (2).

6. A wax mold for manufacturing complex thin-walled pump castings in the field of water pumps according to claim 5, characterized in that: The lower mold (2) is internally installed with a right runner molding slider (13), the right runner molding slider (13) is internally installed with a right core-pulling slider (14), the central water tank molding slider (11) is internally installed with a central core-pulling slider (15), and the front end of the central core-pulling slider (15) is installed with a central baffle slider (16).

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