Casting mold applying reinforced urea core

Abstract

The utility model relates to a casting mould applying a reinforced urea core, which comprises an upper mould block, a lower mould block and the reinforced urea core, the upper mould block and the lower mould block are respectively provided with a casting cavity, two ends of the casting cavity are respectively provided with a mould placing groove, two ends of the mould placing groove are respectively provided with a transverse rib groove, the reinforced urea core is arranged in the casting cavity, and the reinforced urea core is arranged in the mould placing groove. And transverse reinforcing ribs matched with the transverse rib grooves are arranged at the two ends of the reinforcing urea core respectively. According to the reinforced urea core, the transverse reinforcing ribs and the vertical reinforcing ribs are utilized, so that the reinforced urea core has better physical strength, can bear casting impact of wax liquid with higher temperature and pressure and is not broken, and the rejection rate of a wax mold is greatly reduced; the transverse reinforcing ribs and the vertical reinforcing ribs can be processed by selecting materials with different lengths, shapes and characteristics according to production conditions; the utility model has the advantages of simple structure, low cost and good practicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of casting molds and relates to a melting and casting mold using a reinforced urea core. Background Art

[0002] Investment casting is a near-net-shape technology for producing high-quality precision castings, and is increasingly used in industrial production. Control valves are widely used in the chemical and petroleum industries. The inner cavity of the wax mold is generally formed directly with a mold, but for complex or small inner cavities, it is impossible to form them directly with a mold, and a urea core is required to form the inner cavity structure. In the process of making urea cores and the subsequent wax injection process, especially urea cores with slender structures, they are often broken during the production process, which can easily lead to product scrapping. Summary of the invention

[0003] The utility model aims to overcome the deficiencies in the prior art, solve the problem of breakage of the urea core during mold casting, and provide a casting mold using a reinforced urea core.

[0004] In order to achieve the above purpose, the following technical solutions are adopted:

[0005] The melting and casting mold using a reinforced urea core comprises an upper module, a lower module and a reinforced urea core, wherein a casting cavity is respectively provided on the upper module and the lower module, and mold grooves are respectively provided at both ends of the casting cavity, and transverse rib grooves are respectively provided at both ends of the mold grooves. A reinforced urea core is provided in the casting cavity, and support parts capable of cooperating with the mold grooves are respectively provided at both ends of the reinforced urea core; transverse reinforcing ribs capable of cooperating with the transverse rib grooves are respectively provided at both ends of the reinforced urea core.

[0006] Preferably, a mold hole is provided on the upper end surface of the casting cavity of the upper module, and a vertical rib groove is provided at the upper end of the mold hole; a support rod capable of cooperating with the mold hole is provided at the upper end of the reinforced urea core, and vertical reinforcing ribs capable of cooperating with the vertical rib groove are provided inside the support rod.

[0007] Preferably, the mold groove includes a first groove located in the upper module and a second groove located in the lower module.

[0008] Preferably, the transverse rib groove includes a first narrow groove located in the upper module and a second narrow groove located in the lower module.

[0009] Preferably, the transverse reinforcement ribs and the vertical reinforcement ribs are made of heat-resistant and corrosion-resistant materials.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] The utility model utilizes transverse reinforcing ribs and vertical reinforcing ribs to make the reinforced urea core have better physical strength, can withstand the impact of wax liquid casting with high temperature and pressure without breaking, thereby greatly reducing the scrap rate of the wax mold; the transverse reinforcing ribs and vertical reinforcing ribs can be processed with materials of different lengths, shapes and characteristics according to production conditions; the utility model has a simple structure, low cost and good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 It is a schematic diagram of the upper module structure of the utility model.

[0014] Figure 3 It is a schematic diagram of the upper module and the lower module of the utility model.

[0015] Figure 4 This is a schematic diagram of the lower module structure of the utility model.

[0016] Figure 5 This is a schematic diagram of the structure of the reinforced urea core of the utility model.

[0017] In the figure: 1. upper module; 2. lower module; 3. reinforced urea core; 4. casting cavity; 5. mold groove; 6. transverse rib groove; 7. transverse reinforcing rib; 8. mold hole; 9. vertical reinforcing rib; 10. first groove; 11. second groove; 12. first narrow groove; 13. second narrow groove; 14. support part; 15. support rod; 16. vertical rib groove. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0019] like Figure 1-Figure 5 As shown, a melting and casting mold using a reinforced urea core comprises an upper module 1, a lower module 2, and a reinforced urea core 3. The upper module 1 and the lower module 2 are respectively provided with a casting cavity 4, and the casting cavity 4 is used for casting wax to form a wax mold;

[0020] The two ends of the casting cavity 4 are respectively provided with mold grooves 5, and the two ends of the mold grooves 5 are respectively provided with transverse rib grooves 6. A reinforced urea core 3 is provided in the casting cavity 4, and the two ends of the reinforced urea core 3 are respectively provided with support parts 14 that can cooperate with the mold grooves 5. The two ends of the reinforced urea core 3 are respectively fixed in the casting cavity 4 by the cooperation of the support parts 14 and the mold grooves 5.

[0021] Both ends of the reinforced urea core 3 are respectively provided with transverse reinforcing ribs 7 that can cooperate with the transverse rib grooves 6. The transverse reinforcing ribs 7 prevent the two ends of the reinforced urea core 3 from breaking when facing the scouring of the injection wax.

[0022] Furthermore, a mold hole 8 is provided on the upper end surface of the casting cavity 4 of the upper module 1, and a vertical rib groove 16 is provided at the upper end of the mold hole 8; a support rod 15 capable of cooperating with the mold hole 8 is provided at the upper end of the reinforced urea core 3, and the cooperation between the support rod 15 and the mold hole 8 makes the reinforced urea core 3 more stable in the casting cavity 4; a vertical reinforcing rib 9 capable of cooperating with the vertical rib groove 16 is provided in the support rod 15, and the vertical reinforcing rib 9 prevents the upper end of the reinforced urea core 3 from breaking when facing the scouring of wax injection.

[0023] Furthermore, the mold placement groove 5 includes a first groove 10 located in the upper module 1 and a second groove 11 located in the lower module 2. The first groove 10 and the second groove 11 cooperate to form the mold placement groove 5, which is convenient for the support part 14 to be placed therein.

[0024] Furthermore, the transverse rib groove 6 includes a first narrow groove 12 located in the upper module 1 and a second narrow groove 13 located in the lower module 2. The first narrow groove 12 and the second narrow groove 13 cooperate to form the transverse rib groove 6, which is convenient for the transverse reinforcing rib 7 to be placed therein.

[0025] Furthermore, the transverse reinforcing ribs 7 and the vertical reinforcing ribs 9 are made of heat-resistant and corrosion-resistant materials. The materials with good heat-resistant and corrosion-resistant properties facilitate the repeated use of the transverse reinforcing ribs 7 and the vertical reinforcing ribs 9, thereby reducing costs.

[0026] Furthermore, the length and shape of the transverse reinforcing ribs 7 and the vertical reinforcing ribs 9 can be selected and bent according to actual processing needs.

[0027] Working principle: When the utility model is used, first, align the support rod 15 at the upper end of the reinforced urea core 3 with the mold hole 8, and then slowly put the reinforced urea core 3 into the upper module 1; the support parts 14 at both ends of the reinforced urea core 3 are placed in the first groove 10, at this time, the transverse reinforcing ribs 7 are respectively located in the corresponding first narrow grooves 12; then the upper module 1 is placed on the lower module 2 (the first groove 10 and the second groove 11 correspond to each other), and the reinforced urea core 3 is wrapped by the upper module 1 and the lower module 2 as a whole. Wax casting can be carried out through the casting hole on the upper module 1. The reinforced urea core 3 with the transverse reinforcing ribs 7 and the vertical reinforcing ribs 9 can withstand the impact of wax liquid with higher temperature and pressure to form a wax mold.

[0028] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A casting mold using a reinforced urea core (3), comprising an upper mold block (1), a lower mold block (2), and a reinforced urea core (3), wherein: The upper module (1) and the lower module (2) are respectively provided with a casting cavity (4), both ends of the casting cavity (4) are respectively provided with a mold groove (5), both ends of the mold groove (5) are respectively provided with a transverse rib groove (6), a reinforced urea core (3) is provided in the casting cavity (4), both ends of the reinforced urea core (3) are respectively provided with a support portion (14) capable of cooperating with the mold groove (5); and both ends of the reinforced urea core (3) are respectively provided with a transverse reinforcing rib (7) capable of cooperating with the transverse rib groove (6).

2. A casting mold using a reinforced urea core according to claim 1, characterized in that: A mold hole (8) is provided on the upper end surface of the casting cavity (4) of the upper module (1), and a vertical rib groove (16) is provided at the upper end of the mold hole (8); a support rod (15) capable of cooperating with the mold hole (8) is provided at the upper end of the reinforced urea core (3), and a vertical reinforcing rib (9) capable of cooperating with the vertical rib groove (16) is provided inside the support rod (15).

3. The casting mold using a reinforced urea core according to claim 1 is characterized in that: The mold setting groove (5) comprises a first groove (10) located in the upper module (1) and a second groove (11) located in the lower module (2).

4. The casting mold using a reinforced urea core according to claim 1 is characterized in that: The transverse rib groove (6) comprises a first narrow groove (12) located in the upper module (1) and a second narrow groove (13) located in the lower module (2).

5. The casting mold using a reinforced urea core according to claim 1 is characterized in that: The transverse reinforcing ribs (7) are made of heat-resistant and corrosion-resistant materials.

6. The casting mold using a reinforced urea core according to claim 2 is characterized in that: The vertical reinforcing ribs (9) are all made of heat-resistant and corrosion-resistant materials.

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