Casting model structure for support type single riser
Through the single-side riser design and optimized pouring system, the problems of complex pouring system and unstable casting quality in the bracket casting model structure are solved, and high-quality and high-precision production of castings is achieved.
Patent Information
- Application Number
- CN202422601686.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-10-25
AI Technical Summary
Existing bracket casting model structures mostly use double-sided risers, which leads to complex pouring systems, crowded layouts, small space for plan adjustment, low sand mold strength, easy mold expansion and mold misalignment of products, affecting the quality and dimensional stability of castings.
A single-sided riser design is adopted, combined with components such as horizontal runner, vertical runner, rectifier and slag collection bag to form a novel pouring system. The solidification process of the casting is optimized by water inlet and insulation block, and the principle of self-feeding of graphite expansion is used to achieve sequential solidification and shrinkage feeding of the casting.
It improves the quality and dimensional accuracy of castings, reduces molten iron waste and post-processing workload, reduces the intensity of grinding for personnel, solves undesirable conditions such as slag holes and shrinkage, enhances the strength of sand molds, and avoids mold misalignment and mold expansion.
Smart Images
Figure CN223394255U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of casting model structures, in particular to a casting model structure for a single riser of a bracket type. Background Art
[0002] Bracket casting patterns are important tools for manufacturing bracket castings. The design of bracket casting patterns should comprehensively consider factors such as the structural characteristics of the casting, shrinkage, processing allowance, core fixation and support, exhaust, and pouring and riser systems to ensure the quality of the casting and production efficiency.
[0003] Existing bracket casting model structures mostly use double-sided risers, which leads to relatively complex pouring systems, crowded layouts, small space for plan adjustment, low step retention rate, tight layout, low sand mold strength, easy mold expansion and mold misalignment, resulting in unstable casting dimensions. In addition, water is introduced from both sides, and molten iron is gathered in the middle, resulting in undesirable conditions such as sand blasting and slag holes in the casting, which will seriously affect the casting quality.
[0004] Therefore, a casting model structure for a bracket-type single riser is proposed. Utility Model Content
[0005] The purpose of the utility model is to provide a casting model structure for a bracket-type single riser, so as to solve the problems that the bracket-type casting model structure in the prior art mostly adopts double-sided risers, resulting in a relatively complex pouring system, crowded layout, small space for scheme adjustment, low step retention rate, tight layout, low sand mold strength, easy mold expansion and mold misalignment of the product, thereby making the casting size unstable. In addition, water is introduced from both sides, molten iron is collected from the middle, and sand is washed out of the casting, resulting in a high defect rate such as slag eyes.
[0006] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the present invention include: a casting model structure for a single riser of a bracket type, including: a horizontal bracket and a vertical bracket, a horizontal runner is provided inside the horizontal bracket, a vertical runner is provided inside the vertical bracket, the upper end of the vertical bracket is fixedly connected to the vertical bracket through a first rectifier, and the horizontal runner is connected to the vertical runner through the first rectifier; a plurality of equidistantly arranged second rectifiers are fixedly installed on the vertical bracket from top to bottom, a riser is connected to the second rectifier, and the riser is connected to the casting through the riser neck.
[0007] As a preferred technical solution, a pouring cup is fixedly mounted on the horizontal bracket, and the pouring cup is connected to the horizontal runner.
[0008] As a preferred technical solution, a slag collecting bag is fixedly installed at the lower end of the vertical bracket, and the slag collecting bag is communicated with the vertical pouring channel.
[0009] As a preferred technical solution, insulation blocks are placed at the thin beams of the casting.
[0010] As a preferred technical solution, a water inlet sheet is installed between the second rectifier sheet and the casting, and the thickness of the water inlet sheet is 1.5 to 3 mm.
[0011] As a preferred technical solution, the thickness of the first rectifier piece and the second rectifier piece is 2 to 3 mm.
[0012] The utility model provides a casting model structure for a single riser of a bracket type, which has at least the following features:
[0013] Beneficial effects:
[0014] By adopting a single-sided riser method, the shrinkage that may occur during the casting process is compensated, which prevents the casting from producing shrinkage cavities and shrinkage, and also has the functions of exhausting, collecting slag, and guiding filling. At the same time, the weight of the riser is reduced by half, the mold weight is reduced, the waste of molten iron and the workload of post-processing are reduced, and the intensity of personnel grinding and processing is reduced.
[0015] By adopting a novel pouring system and adding rectifiers, the molten iron solution is made more stable during the pouring process and has a certain slag-avoiding effect. By using the overlapping method of the first and second rectifiers and the runner, the slag-avoiding effect of the entire pouring system is made more significant, effectively solving the slag eye defect of the product.
[0016] By adopting a new shrinkage feeding process, water is introduced from one side to make it solidify sequentially. By utilizing the principle of self-feeding of graphite expansion, the molten iron temperature on the side without water inflow is lower and solidifies first, while the side with water inflow solidifies later, thus solving quality problems such as shrinkage of castings.
[0017] By adding a water inlet on the thin beam side, there is a water inlet at the thick beam and thin beam positions of the casting, and they are filled at the same time, which increases the simultaneity and stability of the molten iron flow in the casting and effectively improves the poor sand blasting of the casting.
[0018] By removing the outer riser, the process layout space is increased, and concave and convex designs are added on both sides to avoid sand mold misalignment. At the same time, the strength of the sand mold is improved, and it is not easy to expand the mold, thereby ensuring the dimensional accuracy of the casting in many aspects.
[0019] By adding insulation blocks at the thin beam position, the shrinkage of molten iron can be fed smoothly, and the castings can solidify sequentially, effectively solving the problems of casting shrinkage and white spots in thin beams. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:
[0021] Figure 1This is a schematic structural diagram of a casting model structure for a single riser of a bracket type according to the present invention;
[0022] Figure 2 For the utility model Figure 1 Enlarged schematic diagram of the structure of part A in the middle.
[0023] Description of Figure Numbers:
[0024] 1. Pouring cup; 2. Horizontal bracket; 201. Horizontal runner; 3. First rectifier; 4. Vertical bracket; 401. Vertical runner; 5. Slag collecting bag; 6. Second rectifier; 7. Riser; 8. Water inlet plate; 9. Riser neck; 10. Casting; 11. Insulation block. DETAILED DESCRIPTION
[0025] The following will describe the implementation methods of the present application in detail with reference to the accompanying drawings and examples, so that the implementation process of how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.
[0026] Example
[0027] Please refer to Figures 1 to 2 As shown, this embodiment provides a casting model structure for a bracket-type single riser, including: a horizontal bracket 2 and a vertical bracket 4, a horizontal runner 201 is provided inside the horizontal bracket 2, and a vertical runner 401 is provided inside the vertical bracket 4, the upper end of the vertical bracket 4 is fixedly connected to the vertical bracket 4 through the first rectifier 3, and the horizontal runner 201 is connected to the vertical runner 401 through the first rectifier 3; a plurality of equidistantly arranged second rectifiers 6 are fixedly installed on the vertical bracket 4 from top to bottom, and the second rectifiers 6 are connected to the risers 7, and the risers 7 are connected to the casting 10 through the riser neck 9. By adopting a single-sided riser method, the shrinkage that may occur during the formation of the casting is compensated, and the casting is prevented from producing shrinkage cavities and shrinkage, and has the functions of venting, collecting slag, and guiding filling. At the same time, the weight of the riser is reduced by half, the mold weight is reduced, the waste of molten iron and the workload of post-processing are reduced, and the grinding processing intensity of personnel is reduced.
[0028] Among them, a pouring cup 1 is fixedly installed on the horizontal bracket 2, and the pouring cup 1 is connected to the horizontal runner 201. The pouring cup 1 receives the liquid metal from the furnace or ladle and introduces it into the horizontal runner 201. The pouring cup 1 is an I-shaped hexagon.
[0029] Among them, a slag collecting bag 5 is fixedly installed at the lower end of the vertical bracket 4, and the slag collecting bag 5 is connected to the vertical runner 401. The slag collecting bag 5 can collect impurities inside the molten metal to prevent impurities from entering the interior of the casting 10, thereby improving the quality of the casting.
[0030] Among them, an insulation block 11 is placed at the thin beam of the casting 10. The insulation block 11 is placed inside the thin beam of the casting 10 to ensure that the shrinkage feeding channel of the casting 10 is unobstructed, so that the casting 10 solidifies sequentially.
[0031] Among them, a water inlet plate 8 is installed between the second rectifier plate 6 and the casting 10. The thickness of the water inlet plate 8 is 1.5 to 3 mm, and the thickness of the water inlet plate 8 is preferably 2 mm. It is placed close to the thin beam side and can perform secondary slag avoidance on the molten iron while entering the water.
[0032] The thickness of the first rectifier plate 3 and the second rectifier plate 6 is 2-3 mm, and the thickness of the first rectifier plate 3 and the second rectifier plate 6 is preferably 2.5 mm, which plays a filtering role on impurities such as slag in the molten iron.
[0033] Working Principle: When in use, the pouring cup 1 is used to receive liquid metal from the furnace or ladle and introduce it into the horizontal runner 201. The horizontal runner 201 introduces the liquid metal into the vertical runner 401 through the first rectifier 3. The vertical runner 401 transports the liquid metal to the mold cavity of each casting 10. During this process, the first rectifier 3 and the second rectifier 6 can filter out impurities such as slag in the molten iron. The water inlet 8 can perform a secondary slag-free filtration on the molten iron, thereby improving the quality of the casting.
[0034] The insulation block 11 is placed at the thin beam position of the casting 10 and connected to the casting 10 to ensure that the shrinkage feeding channel of the bracket is unobstructed, so that it solidifies sequentially and realizes a casting with dense interior and no defects. The temperature of the casting 10 on the side without the riser is relatively low, and the shrinkage feeding capacity required is reduced. The shrinkage feeding effect is achieved through self-feeding of graphite expansion.
[0035] The above description shows and describes several preferred embodiments of the present invention. However, as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the present invention as taught herein or through the techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.
Claims
1. A casting model structure for a single riser of a bracket type, characterized in that: include: A horizontal bracket (2) and a vertical bracket (4), wherein a horizontal runner (201) is provided inside the horizontal bracket (2), and a vertical runner (401) is provided inside the vertical bracket (4), the upper end of the vertical bracket (4) is fixedly connected to the vertical bracket (4) via a first rectifier (3), and the horizontal runner (201) is communicated with the vertical runner (401) via the first rectifier (3); A plurality of second rectifier sheets (6) arranged at equal intervals are fixedly mounted on the vertical bracket (4) from top to bottom, the second rectifier sheets (6) are connected to risers (7), and the risers (7) are connected to castings (10) via riser necks (9).
2. A casting mold structure for a single riser of a bracket according to claim 1, characterized in that: A pouring cup (1) is fixedly mounted on the transverse bracket (2), and the pouring cup (1) is communicated with the transverse runner (201).
3. A casting mold structure for a single riser of a bracket according to claim 2, characterized in that: A slag collecting bag (5) is fixedly mounted on the lower end of the vertical support (4), and the slag collecting bag (5) is communicated with the vertical pouring channel (401).
4. A casting mold structure for a single riser of a bracket according to claim 3, characterized in that: A heat-insulating block (11) is placed at the thin beam of the casting (10).
5. The casting mold structure for a single riser of a bracket according to claim 1, characterized in that: A water inlet sheet (8) is installed between the second rectifier sheet (6) and the casting (10), and the thickness of the water inlet sheet (8) is 1.5 to 3 mm.
6. A casting mold structure for a single riser of a bracket according to any one of claims 1 to 5, characterized in that: The thickness of the first rectifier piece (3) and the second rectifier piece (6) is 2 to 3 mm.