Brake disc casting mold

Abstract

The utility model discloses a brake disc casting mold which comprises a pouring cup and a mold core, the transverse pouring gates comprise the first transverse pouring gate and the second transverse pouring gate, the first transverse pouring gate is connected with the pouring cup and extends outwards in the first direction, the second transverse pouring gate is connected with the pouring cup and extends outwards in the second direction, and a first included angle space is formed between the first transverse pouring gate and the second transverse pouring gate; the cavity is provided with a first inlet and a second inlet, and the first inlet and the second inlet are symmetrically distributed on the two sides of the cavity relative to the center of the cavity; wherein the mold cavity comprises a first mold cavity, the first mold cavity is arranged in the first included angle space, the first cross gate is connected to a first inlet of the first mold cavity through the first flow gate, and the second cross gate is connected to a second inlet of the first mold cavity through the second flow gate. The brake disc casting mold is excellent and stable in mechanical property, the brake performance of a whole vehicle can be improved, meanwhile, defective products can be reduced, and the production and management cost of an enterprise is reduced.

Description

Technical Field

[0001] The utility model is used in the field of molds, in particular to a brake disc casting mold. Background Art

[0002] The brake system is an important safety component of a car. As the executive component of the brake system, the performance of the brake directly affects the braking performance of the car. The braking performance includes braking efficiency, stability of braking direction and constancy of braking efficiency. The performance directly affects the safety of the car and the lives of the driver and passengers. Disc brakes, as one of the categories, have the advantages of good thermal stability, good heat dissipation, low noise, low vibration, and sensitive response, and have become the current mainstream trend.

[0003] Disc brakes are usually produced using an early casting process and a later machining process. The quality of the mold used in the early casting process directly affects the internal crystal structure of the brake disc, further affecting the mechanical properties and ultimately affecting the braking performance of the entire vehicle.

[0004] Although there are a large number of casting molds on the market, the size specifications and layout of the mold structure will affect the pouring effect. Since the pouring process must be completed in a very short time, if the uniformity of the pouring speed, the temperature difference before and after pouring, and the solidification sequence during the pouring process cannot be controlled through an effective structure, it will lead to more pores inside the casting blank, more shrinkage holes outside, uneven distribution of internal crystal structure, high product defective rate, and ultimately affect the safety braking performance of the car. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art and provide a brake disc casting mold.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A brake disc casting mold, comprising:

[0008] pouring cup;

[0009] A runner, comprising a first runner and a second runner, wherein the first runner is connected to the pouring cup and extends outwardly in a first direction, the second runner is connected to the pouring cup and extends outwardly in a second direction, and a first angle space is formed between the first runner and the second runner;

[0010] A mold cavity, the mold cavity having a first inlet and a second inlet, the first inlet and the second inlet being symmetrically distributed on two sides of the mold cavity relative to the center of the mold cavity;

[0011] Wherein, the mold cavity includes a first mold cavity, the first mold cavity is arranged in the first angle space, the first cross runner is connected to the first entrance of the first mold cavity through a first inner gate, and the second cross runner is connected to the second entrance of the first mold cavity through a second inner gate.

[0012] In combination with the above implementations, in certain implementations, the cavity is circular, and the circular cross-section of the cavity is located on a plane defined by the first runner and the second runner.

[0013] In combination with the above implementations, in certain implementations, the first inlet and the second inlet are both located on the outer circumference of the cavity, and the first inlet and the second inlet are located on the same diameter of the cavity.

[0014] In combination with the above implementations, in some implementations, the first inlet and the second inlet are the same in size.

[0015] In combination with the above implementations, in some implementations, a first riser is provided on the outer side of the first inlet, and a second riser is provided on the outer side of the second inlet, and the first riser and the second riser extend upward in a height direction.

[0016] In combination with the above implementations, in some implementations, the runner includes a third runner, the third runner is connected to the pouring cup and extends outward along a third direction, a second angle space is formed between the third runner and the second runner, the cavity includes a second cavity, the second cavity is arranged in the second angle space, the second runner is connected to the first entrance of the second cavity through a third inner gate, and the third runner is connected to the second entrance of the second cavity through a fourth inner gate.

[0017] In combination with the above implementations, in some implementations, the runner includes a fourth runner, the fourth runner is connected to the pouring cup and extends outward along a fourth direction, a third angle space is formed between the fourth runner and the third runner, the cavity includes a third cavity, the third cavity is arranged in the third angle space, the third runner is connected to the first entrance of the third cavity through a fifth inner gate, and the fourth runner is connected to the second entrance of the third cavity through a sixth inner gate.

[0018] In combination with the above implementations, in some implementations, a fourth angle space is formed between the fourth cross runner and the first cross runner, the cavity includes a fourth cavity, the fourth cavity is arranged in the fourth angle space, the fourth cross runner is connected to the first entrance of the fourth cavity through the seventh inner gate, and the first cross runner is connected to the second entrance of the fourth cavity through the eighth inner gate.

[0019] In combination with the above implementations, in certain implementations, the first runner, the second runner, the third runner and the fourth runner are evenly distributed around the pouring cup.

[0020] In combination with the above implementations, in certain implementations, a plurality of protrusions are provided on the top of the runner, and the plurality of protrusions are spaced apart and distributed along the extension direction of the runner.

[0021] One of the above technical solutions has at least one of the following advantages or beneficial effects: there are a first inlet and a second inlet connected on both sides of the cavity and symmetrically distributed compared to the center of the cavity, ensuring that the molten iron entering the cavity from the first inlet and the second inlet can enter the cavity evenly, avoiding disturbance and turbulence of the molten iron during the flow. In this way, the temperature difference of the molten iron in the cavity is very small at each location, ensuring that the temperature of each location of the casting is almost the same, which is conducive to the uniform precipitation process of the internal crystal structure during the solidification of the molten iron, thereby ensuring that there are no impurities inside the casting, greatly improving the mechanical properties of the casting, and the mechanical properties are superior and stable, which helps to improve the braking performance of the whole vehicle. At the same time, it can also reduce the occurrence of defective products and reduce the production management costs of the enterprise.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 It is a three-dimensional schematic diagram of the structure of an embodiment of the utility model;

[0025] Figure 2 yes Figure 1 A top view of the structure of an embodiment is shown. DETAILED DESCRIPTION

[0026] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0027] In the present invention, if directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present invention, and does not indicate or imply that the technical features referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0028] In the present utility model, "several" means one or more, "multiple" means more than two, "greater than", "less than", "exceed" and the like are understood to exclude the number itself; "above", "below", "within" and the like are understood to include the number itself. In the description of the present utility model, if there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected or electrically connected or able to communicate with each other; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0030] in, Figure 1 The reference direction coordinate system of the embodiment of the utility model is given below. Figure 1 The embodiment of the utility model is described with reference to the direction shown.

[0031] See also Figure 1 , Figure 2 An embodiment of the utility model provides a brake disc casting mold, including a pouring cup 1, a runner and a cavity, wherein the pouring cup 1 extends vertically and is used to introduce molten iron into the mold, the runner includes a first runner 2 and a second runner 3, the first runner 2 is connected to the pouring cup 1 and extends outward in a first direction, the second runner 3 is connected to the pouring cup 1 and extends outward in a second direction, and a first angle space 5 is formed between the first runner 2 and the second runner 3.

[0032] The mold cavity has a first inlet 6 and a second inlet 7, which serve as inlets for molten iron to enter the mold cavity. The first inlet 6 and the second inlet 7 are symmetrically distributed on both sides of the mold cavity compared to the center of the mold cavity.

[0033] Among them, the cavity includes a first cavity 4, the first cavity 4 is arranged in a first angle space 5, the first cross runner 2 is connected to the first inlet 6 of the first cavity 4 through a first inner gate 19, and the second cross runner 3 is connected to the second inlet 7 of the first cavity 4 through a second inner gate 20.

[0034] There are a first inlet 6 and a second inlet 7 on both sides of the cavity, which are symmetrically distributed compared to the center of the cavity, to ensure that the molten iron entering the cavity from the first inlet 6 and the second inlet 7 can enter the cavity evenly, avoiding disturbance and turbulence of the molten iron during the flow. In this way, the temperature difference of the molten iron in each place in the cavity is very small, ensuring that the temperature of each place in the casting is close to the same, which is conducive to the uniform precipitation process of the internal crystal structure during the solidification of the molten iron, thereby ensuring that there are no impurities inside the casting, greatly improving the mechanical properties of the casting, and the mechanical properties are superior and stable, which helps to improve the braking performance of the whole vehicle, while also reducing the occurrence of defective products and reducing the production management costs of the enterprise.

[0035] In some embodiments, see Figure 1 , Figure 2 , the cavity is circular, and the circular cross section of the cavity is located on the plane defined by the first runner 2 and the second runner 3. In other words, if the first runner 2 extends laterally along the first direction, and the second runner 3 extends laterally along the second direction, the cavity is circular and is laterally arranged in the mold. In this embodiment, the thickness of the cavity along the height direction is thinner, which is more conducive to controlling the speed of molten iron entering the cavity, and is conducive to the uniform precipitation process of the internal crystal structure during the solidification of the molten iron, thereby ensuring that there are no impurities inside the casting and the mechanical properties are excellent and stable.

[0036] For further information, see Figure 1 , Figure 2 , the first inlet 6 and the second inlet 7 are both located on the outer peripheral surface of the cavity, and the first inlet 6 and the second inlet 7 are located on the same diameter of the cavity. The molten iron entering the cavity through the first inlet 6 and the second inlet 7 can enter the cavity symmetrically and evenly, and the molten iron entering the cavity through the first inlet 6 and the second inlet 7 is oppositely distributed in the cavity, ensuring that the molten iron can enter the cavity evenly, avoiding disturbance and turbulence of the molten iron during the flow process, and is more conducive to controlling the speed of the molten iron entering the cavity. The temperature difference of the molten iron in each place in the cavity is very small, which is conducive to the uniform precipitation process of the internal crystal structure during the solidification of the molten iron, thereby ensuring that there are no impurities inside the casting, and the mechanical properties are excellent and stable. At the same time, the inlet located on the outer peripheral surface of the cavity can easily control the speed of the molten iron entering the cavity, avoid splashing of the molten iron, burning the cavity wall, absorbing impurities, and ensure stable product quality.

[0037] In some embodiments, see Figure 1 , Figure 2 The first inlet 6 and the second inlet 7 are of the same size to ensure that the molten iron flows into the cavity at the same rate.

[0038] In addition, the first inlet 6 and the second inlet 7 are relatively small in size, in order to control the speed at which the molten iron enters the cavity, avoid splashing of the molten iron, burn the cavity wall, absorb impurities, and ensure stable product quality.

[0039] In some embodiments, see Figure 1 , Figure 2 A first riser 8 is provided outside the first inlet 6, and a second riser 9 is provided outside the second inlet 7. The first riser 8 and the second riser 9 extend upward in the height direction. The riser is designed to be cylindrical in shape, which can store molten iron and replenish molten iron to the cavity at any time to avoid insufficient molten iron in the cavity, which may cause appearance defects of the solidified casting.

[0040] In some embodiments, see Figure 1 , Figure 2 The runner includes a third runner 10, which is connected to the pouring cup 1 and extends outwardly along the third direction, and a second angle space 11 is formed between the third runner 10 and the second runner 3. The cavity includes a second cavity 12, and the second cavity 12 is arranged in the second angle space 11. The second runner 3 is connected to the first inlet 6 of the second cavity 12 through the third inner gate 21, and the third runner 10 is connected to the second inlet 7 of the second cavity 12 through the fourth inner gate 22. In this embodiment, by providing the third runner 10 and the second cavity 12, multiple castings can be obtained by casting at one time, thereby improving production capacity and reducing production costs.

[0041] For further information, see Figure 1 , Figure 2 The runner includes a fourth runner 13, the fourth runner 13 is connected to the pouring cup 1 and extends outwardly along the fourth direction, a third angle space 14 is formed between the fourth runner 13 and the third runner 10, the cavity includes a third cavity 15, the third cavity 15 is arranged in the third angle space 14, the third runner 10 is connected to the first inlet 6 of the third cavity 15 through the fifth inner gate 23, and the fourth runner 13 is connected to the second inlet 7 of the third cavity 15 through the sixth inner gate 24. In this embodiment, by providing the fourth runner 13 and the third cavity 15, the production capacity can be further improved and the production cost can be reduced.

[0042] For further information, see Figure 1 , Figure 2 A fourth angle space 16 is formed between the fourth runner 13 and the first runner 2, the cavity includes a fourth cavity 17, the fourth cavity 17 is arranged in the fourth angle space 16, the fourth runner 13 is connected to the first inlet 6 of the fourth cavity 17 through the seventh ingates 25, and the first runner 2 is connected to the second inlet 7 of the fourth cavity 17 through the eighth ingates 26. In this embodiment, by providing the fourth cavity 17, the production capacity can be further improved and the production cost can be reduced.

[0043] In some embodiments, see Figure 1 , Figure 2The first runner 2, the second runner 3, the third runner 10 and the fourth runner 13 are evenly distributed around the pouring cup 1, the overall mold structure is symmetrical, and the mechanical properties of different castings have little difference.

[0044] In some embodiments, see Figure 1 , Figure 2 The top of the runner is provided with a plurality of protrusions 18, and the plurality of protrusions 18 are spaced apart along the extension direction of the runner. The runner is designed with a plurality of regular protrusion structures for the purpose of stabilizing the flow rate of the molten iron in the runner process, and also for storing the molten iron and replenishing it in time, so as to ensure that the mechanical property value of the casting is higher than the benchmark requirement, and the difference in the mechanical property value of different castings is small.

[0045] The embodiment of the utility model adopts the above-mentioned technical scheme, as well as the protruding structure of the runner and the riser, which can timely compensate for the shrinkage of the molten iron in the cavity during the solidification process, ensure that the temperature of each part of the casting is close to the same, which is conducive to the uniform precipitation of the internal crystal structure, greatly improves the mechanical properties of the casting, helps to improve the braking performance of the whole vehicle, and at the same time reduces the occurrence of defective products and reduces the production management costs of the enterprise.

[0046] In the description of this specification, the description with reference to the terms "example", "embodiment" or "some embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] Of course, the invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A brake disc casting mold, characterized in that: include: pouring cup; A runner, comprising a first runner and a second runner, wherein the first runner is connected to the pouring cup and extends outwardly in a first direction, the second runner is connected to the pouring cup and extends outwardly in a second direction, and a first angle space is formed between the first runner and the second runner; A mold cavity, the mold cavity having a first inlet and a second inlet, the first inlet and the second inlet being symmetrically distributed on two sides of the mold cavity relative to the center of the mold cavity; Wherein, the mold cavity includes a first mold cavity, the first mold cavity is arranged in the first angle space, the first cross runner is connected to the first entrance of the first mold cavity through a first inner gate, and the second cross runner is connected to the second entrance of the first mold cavity through a second inner gate.

2. The brake disc casting mold according to claim 1, characterized in that: The mold cavity is circular, and the circular cross section of the mold cavity is located on a plane defined by the first runner and the second runner.

3. The brake disc casting mold according to claim 2, characterized in that: The first inlet and the second inlet are both located on the outer circumference of the cavity, and the first inlet and the second inlet are located on the same diameter of the cavity.

4. The brake disc casting mold according to claim 3, characterized in that: The first inlet and the second inlet are of the same size.

5. The brake disc casting mold according to claim 1, characterized in that: A first riser is disposed on the outer side of the first inlet, and a second riser is disposed on the outer side of the second inlet. The first riser and the second riser extend upward in a height direction.

6. The brake disc casting mold according to claim 1, characterized in that: The runner includes a third runner, the third runner is connected to the pouring cup and extends outward along a third direction, a second angle space is formed between the third runner and the second runner, the cavity includes a second cavity, the second cavity is arranged in the second angle space, the second runner is connected to the first entrance of the second cavity through a third inner gate, and the third runner is connected to the second entrance of the second cavity through a fourth inner gate.

7. The brake disc casting mold according to claim 6, characterized in that: The cross runner includes a fourth cross runner, the fourth cross runner is connected to the pouring cup and extends outward along a fourth direction, a third angle space is formed between the fourth cross runner and the third cross runner, the cavity includes a third cavity, the third cavity is arranged in the third angle space, the third cross runner is connected to the first entrance of the third cavity through a fifth inner gate, and the fourth cross runner is connected to the second entrance of the third cavity through a sixth inner gate.

8. The brake disc casting mold according to claim 7, characterized in that: A fourth angle space is formed between the fourth cross runner and the first cross runner, the cavity includes a fourth cavity, the fourth cavity is arranged in the fourth angle space, the fourth cross runner is connected to the first entrance of the fourth cavity through the seventh inner gate, and the first cross runner is connected to the second entrance of the fourth cavity through the eighth inner gate.

9. The brake disc casting mold according to claim 8, characterized in that: The first runner, the second runner, the third runner and the fourth runner are evenly distributed around the pouring cup.

10. The brake disc casting mold according to claim 1, characterized in that: A plurality of protrusions are arranged on the top of the runner, and the plurality of protrusions are distributed at intervals along the extension direction of the runner.

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