Casting model structure for reducing sand slag defects of large calipers

Abstract

The utility model discloses a casting model structure for reducing sand slag defects of large calipers, which comprises a pouring cup, a liquid outlet of the pouring cup is communicated with a transverse pouring gate, the transverse pouring gate is connected with a vertical pouring gate, and one end of the vertical pouring gate close to the transverse pouring gate is provided with an inclined section for buffering the flow velocity of molten iron. The end, away from the cross gate, of the vertical gate is connected with a wedge-shaped water inlet piece, the end, away from the vertical gate, of the wedge-shaped water inlet piece is connected with a casting, the cross gate communicates with a first overflow block, the first overflow block is located between the filter piece and the sprue cup, and the end, away from the filter piece, of the vertical gate communicates with a second overflow block; according to the utility model, the inclined section can effectively avoid the phenomenon that molten iron impacts the sand core, so that the molten iron flows stably, the phenomenon of poor sand washing during casting of large calipers is effectively improved, the first overflow block and the second overflow block can fully absorb solid phase impurities and a small amount of sand slag in the molten iron, and the service life of the sand core is prolonged. The problem of internal defects of large calipers is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of casting, and particularly relates to a casting model structure for reducing sand and slag defects of a large caliper. Background Art

[0002] An automotive brake caliper, as a key component of a modern passenger car disc brake system, its core function is that when the vehicle performs a braking operation, the cylinder piston in the brake caliper is driven by high-pressure hydraulic oil transmitted through an oil pipe, and then pushes the friction plate to closely fit the brake disc, and the effective braking of the wheel is achieved through the frictional force between the two, ensuring the vehicle stops safely. Its performance directly affects the safety and stability during vehicle driving.

[0003] With the continuous development of the automotive industry, more stringent requirements have been put forward for the quality standards, performance and production efficiency of the brake caliper body. Especially during the production process of the brake caliper body casting, the control of the casting quality is particularly crucial. Currently, the impact of molten iron on the sand mold during the casting process will cause damage to the sand mold and form defects, which will be directly reflected in the final casting product, resulting in an increase in the defective rate. In addition, although the molten iron will undergo strict filtration treatment before pouring, it is still difficult to completely avoid the residue of trace solid impurities. Once these impurities enter the mold cavity, they may have an adverse impact on the microstructure of the casting, thereby affecting its overall quality and performance.

[0004] Therefore, a casting model structure for reducing sand and slag defects of a large caliper is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a casting model structure for reducing sand and slag defects of a large caliper, thereby solving or at least alleviating one or more of the above problems and other problems existing in the prior art.

[0006] In order to achieve the above purpose, the main technical solutions adopted by the utility model include:

[0007] A casting model structure for reducing sand and slag defects of a large caliper, including a pouring cup, the liquid outlet of the pouring cup is communicated with a cross runner, the cross runner is connected with a vertical runner, one end of the vertical runner close to the cross runner is provided with an inclined section for buffering the flow rate of molten iron, one end of the vertical runner far from the cross runner is connected with a wedge-shaped water inlet piece, and one end of the wedge-shaped water inlet piece far from the vertical runner is connected with a casting.

[0008] In a casting model structure for reducing sand and slag defects of a large caliper according to the utility model, wherein, the inclination angle of the inclined section is 45°.

[0009] In a casting model structure for a large caliper to reduce sand slag defects according to the present utility model, a filter plate is provided between the horizontal runner and the vertical runner.

[0010] In a casting model structure for a large caliper to reduce sand slag defects according to the present utility model, a first overflow block is communicated with the horizontal runner, and the first overflow block is located between the filter plate and the pouring cup.

[0011] In a casting model structure for a large caliper to reduce sand slag defects according to the present utility model, a second overflow block is communicated with one end of the vertical runner away from the filter plate.

[0012] In a casting model structure for a large caliper to reduce sand slag defects according to the present utility model, a chill plate is provided at the tail of the casting.

[0013] The present utility model at least has the following beneficial effects:

[0014] By providing the inclined section, the present utility model can effectively avoid the phenomenon of molten iron impacting the sand core, make the molten iron flow smoothly, and effectively improve the phenomenon of sand washing defects during the casting of large calipers;

[0015] By providing the first overflow block and the second overflow block, the solid-phase impurities and a small amount of sand slag in the molten iron can be fully absorbed, and the internal defect problem of the large caliper can be solved;

[0016] By providing the wedge-shaped water inlet piece, the fracture of the casting can be neat after it is taken off the production line, and the grinding workload can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 of the present application. In the drawings:

[0018] Figure 1 is a schematic structural diagram of the casting model structure for a large caliper to reduce sand slag defects according to the present utility model;

[0019] 3] Figure 2 is a schematic structural diagram of another perspective of the casting model structure for a large caliper to reduce sand slag defects according to the present utility model.

[0020] Explanation of the reference numerals in the drawings:

[0021] 1. Pouring cup; 2. First overflow block; 3. Horizontal runner; 4. Filter plate; 5. Vertical runner; 6. Wedge-shaped water inlet piece; 7. Second overflow block; 8. Casting. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solution of the present utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

[0023] Among them, the accompanying drawings are only for illustrative purposes, showing only schematic diagrams, rather than physical diagrams, and should not be construed as a limitation of this patent; in order to better illustrate the embodiments of the present utility model, some components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0024] In the accompanying 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 accompanying drawings. This 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 accompanying drawings are only for illustrative purposes and should not be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] In the description of the present utility model, unless otherwise clearly specified and limited, if terms such as "connection" are used to indicate the connection relationship between components, this term should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] Please refer to Figures 1 to 2As shown in the figure, an embodiment of the present utility model provides a casting model structure for reducing sand slag defects in a large caliper, which includes a pouring cup 1. The liquid outlet of the pouring cup 1 is communicated with a horizontal runner 3. The horizontal runner 3 is connected to a vertical runner 5. A filter plate 4 is arranged between the horizontal runner 3 and the vertical runner 5. The filter plate 4 can filter impurities in the molten iron. One end of the vertical runner 5 close to the horizontal runner 3 is provided with an inclined section for buffering the flow rate of the molten iron. In this embodiment, the inclination angle of the inclined section is 45°. One end of the vertical runner 5 far from the horizontal runner 3 is connected to a wedge-shaped water inlet piece 6. By setting the wedge-shaped water inlet piece 6, the casting can fall off automatically through vibration in the drum or on the production line, which can make the fracture of the casting neat after it comes off the production line and reduce the grinding workload. One end of the wedge-shaped water inlet piece 6 far from the vertical runner 5 is connected to a casting 8. A first overflow block 2 is communicated with the horizontal runner 3. The first overflow block 2 is located between the filter plate 4 and the pouring cup 1. One end of the vertical runner 5 far from the filter plate 4 is communicated with a second overflow block 7. By setting the first overflow block 2 and the second overflow block 7, the solid impurities and a small amount of sand slag in the molten iron can be fully absorbed, preventing inclusions from entering the cavity and solving the internal defect problem of the large caliper. A chill piece is arranged at the tail of the casting 8. By setting the chill piece, the casting 8 can be cooled orderly.

[0027] Among them, the chill piece is an iron sheet with a thickness of 2 mm.

[0028] The above description shows and describes several preferred embodiments of the present utility model. However, as mentioned above, it should be understood that the present utility model is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the technology or knowledge in the relevant field. And the changes and modifications made by those skilled in the art without departing from the spirit and scope of the present utility model should all be within the protection scope of the appended claims of the present utility model.

Claims

1. A casting model structure for reducing slag defects in large calipers, characterized in that, It includes a pouring cup (1), a liquid outlet of the pouring cup (1) is communicated with a horizontal runner (3), the horizontal runner (3) is connected with a vertical runner (5), an inclined section for buffering the flow rate of molten iron is arranged at one end of the vertical runner (5) close to the horizontal runner (3), one end of the vertical runner (5) far from the horizontal runner (3) is connected with a wedge-shaped water inlet piece (6), and one end of the wedge-shaped water inlet piece (6) far from the vertical runner (5) is connected with a casting (8).

2. The casting model structure for reducing slag defects of a large caliper according to claim 1, characterized in that: The inclination angle of the inclined section is 45°.

3. A casting mold structure for reducing slag defects in large calipers according to claim 2, characterized in that: A filter piece (4) is arranged between the horizontal runner (3) and the vertical runner (5).

4. A casting model structure for reducing slag defects in large calipers according to claim 3, characterized in that: A first overflow block (2) is communicated with the horizontal runner (3), and the first overflow block (2) is located between the filter piece (4) and the pouring cup (1).

5. The casting mold structure for reducing sand slag defects in large calipers according to claim 4, characterized in that: A second overflow block (7) is communicated with one end of the vertical runner (5) far from the filter piece (4).

6. A casting model structure for reducing slag defects in large calipers according to any one of claims 1-5, characterized in that: A chill piece is arranged at the tail of the casting (8).

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