A four-cavity disc-shaped body pouring structure

Abstract

The application relates to the field of casting gating, in particular to a four-cavity disc-shaped body gating structure which comprises four disc-shaped cavities arranged in a square shape, two proximal cavities and two distal cavities; a main runner arranged in the longitudinal direction, located between the cavities, centered at the center positions of the four disc-shaped cavities, and having a gate at one end; a secondary runner arranged in the transverse direction, communicated with the main runner, and also centered at the center positions of the four disc-shaped cavities; inner runners located at two ends of the secondary runner and communicated with the proximal cavities and the distal cavities through the gating gates; and four chill assemblies respectively arranged on the sides of the disc-shaped cavities away from the proximal gates. In addition, the inner runner position is coincident with the center line of the connected cavities, the center has a riser with a heat preservation sleeve, the proximal and distal cavities are provided with exhaust and slag discharge ports, and the chill at least surrounds one-third of the circumference of the disc-shaped cavity. The application can optimize the gating structure, improve the casting quality and efficiency.

Description

Technical Field

[0001] This application relates to the technical field of casting gating, and in particular to a four-cavity disc-shaped gating structure. Background Technology

[0002] The field of casting mold technology occupies an important position in industrial production. With the continuous development of the manufacturing industry, the performance and quality requirements for casting molds are also increasing. High-quality casting molds can ensure the quality of die castings, reduce the defect rate, improve production efficiency, and reduce production costs, which is of great significance for promoting the development of related industries. In the casting process of disc-shaped bodies such as flanges, the design of the gating system directly affects the quality and performance of the die castings. A reasonable gating system can ensure that molten iron is evenly filled into the cavity of the die casting, avoiding various defects and thus guaranteeing the quality and performance of the product.

[0003] In typical gating system design, the number and location of gating channels are distributed according to the amount of molten iron in different areas of the die casting, aiming to distribute the molten iron as evenly as possible within the die casting cavity and thus avoid defects such as porosity and sand inclusions in the die casting product. For disc-shaped castings, gates are usually placed at any circumferential position to guide the molten iron to fill the cavity. However, this conventional design approach has certain limitations in practical applications.

[0004] However, in multi-cavity machining, it is difficult to ensure that molten iron flows evenly into the die casting cavity by setting the gate at any circumferential position. The flow rate and cooling rate of the molten iron will result in differences in the strength of different areas of the die casting. Utility Model Content

[0005] To overcome the above-mentioned technical problems, this application provides a four-cavity disc-shaped injection structure.

[0006] The technical solution for the four-cavity disc-shaped injection structure provided in this application is as follows: A four-cavity disc-shaped injection structure includes four disc-shaped cavities. Each disc-shaped cavity includes two proximal cavities arranged laterally and two distal cavities arranged laterally on one side of the proximal cavities. The disc-shaped cavities are arranged in a regular quadrilateral shape. The main horizontal runner is arranged longitudinally and is located between the two proximal cavities and the two distal cavities. The center of the main horizontal runner is located at the center of the four disc-shaped cavities. The end of the main horizontal runner near the proximal cavity is provided with a gate. The secondary horizontal runner is arranged horizontally and located between two adjacent disc-shaped cavities along the longitudinal direction. The center of the secondary horizontal runner is located at the center of the four disc-shaped cavities. The secondary horizontal runner is connected to the main horizontal runner. An ingate is provided longitudinally and located at both ends of the secondary runner. The two ends of the ingate are respectively connected to the proximal cavity and the distal cavity located on the side of the main runner closest to itself through the inlet. Chills, the number of which is four, are respectively located on the side of the disc-shaped cavity away from the gate connected to it.

[0007] By adopting the above technical solution, the four disc-shaped cavities are arranged in a regular quadrilateral shape. With the main horizontal runner arranged longitudinally, the secondary horizontal runner arranged laterally, and the ingate arranged longitudinally, molten iron can enter each disc-shaped cavity from the gate through the main horizontal runner, the secondary horizontal runner, and the ingate, and then through the gate, so as to achieve a reasonable distribution of molten iron in each cavity. A chill is set on the side of the disc-shaped cavity away from the gate. The cooling effect of the chill can be used to quickly cool the molten iron, eliminate internal defects in the casting, reduce the tendency of shrinkage porosity, and improve the quality of the casting.

[0008] Optionally, the position of the ingate coincides with the center line connecting the proximal cavity and the distal cavity connected to it.

[0009] By adopting the above technical solution, molten iron can flow more accurately into the near-end and far-end cavities along the line connecting the center of the mold cavity, reducing flow resistance and turbulence, ensuring that the molten iron fills the mold cavity smoothly and evenly, and at the same time, it can make the molten iron more evenly distributed in the mold cavity, reduce the difference in strength between different areas of the casting, and improve the quality of the casting.

[0010] Optionally, a riser is provided at the center of the ingate.

[0011] By adopting the above technical solution, the two ends of the ingate are connected to the near-end cavity and the far-end cavity respectively, and a riser is provided at the center of the ingate. This allows the riser to supplement the molten iron during the filling of the near-end cavity and the far-end cavity, reducing defects such as shrinkage porosity and shrinkage cavity caused by insufficient molten iron in the casting, and improving the quality of the casting.

[0012] Optionally, the riser is provided with an insulating sleeve.

[0013] By adopting the above technical solution, the molten iron can be kept at a high temperature at the riser, ensuring that the molten iron fully fills the mold cavity, and achieving gradual cooling from the chilled iron to the riser, effectively concentrating the shrinkage tendency at the riser, and further improving the quality and density of the casting.

[0014] Optionally, the distal cavity is provided with two exhaust and slag discharge ports, which are located at both ends of the diameter extending laterally from the distal cavity.

[0015] By adopting the above technical solution, exhaust and slag discharge ports are set at both ends of the diameter extending laterally in the far-end cavity, which can effectively discharge the gas and slag in the far-end cavity, avoid defects such as porosity and slag inclusions in the casting due to gas and slag residue, and improve the quality and performance of the casting.

[0016] Optionally, the proximal cavity is provided with two exhaust and slag discharge ports, which are located at both ends of the diameter of the proximal cavity pointing to the center of the four disc-shaped cavities.

[0017] By adopting the above technical solution, since the near-end cavity is close to the gate, the molten iron flows in more easily. Venting and slag discharge ports are set at both ends of the diameter of the near-end cavity pointing to the center of the four disc-shaped cavities. This facilitates the discharge of gas and slag during the initial filling stage, reducing defects such as scorching and material shortage caused by early gas compression. This is suitable for the characteristics of higher melt pressure and faster filling speed at the near end. On the other hand, the far-end cavity is far from the gate, making it relatively difficult for molten iron to flow in and potentially leading to gas and slag accumulation. Venting and slag discharge ports are set at both ends of the diameter extending laterally at the far end cavity. This facilitates the discharge of residual gas and slag at the end of the cavity, preventing bubbles, depressions, or poor welding caused by lower end pressure and gas accumulation. This specifically addresses the venting and slag discharge needs of the far-end filling area.

[0018] Optionally, the chill surrounds at least one-third of the outer circumference of the disc-shaped cavity.

[0019] By adopting the above technical solution, the contact area between the chill and the molten iron is increased, the cooling effect is enhanced, the molten iron can be cooled more quickly, further eliminating internal defects in the casting, better reducing the tendency of shrinkage porosity, and improving the quality of the casting.

[0020] Optionally, the chilled iron is constructed to be cold magnetic.

[0021] By adopting the above technical solution, the chilled iron is constructed as a cold magnet, which can be magnetically adsorbed and fixed to the disc-shaped cavity, simplifying the installation process.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. Molten iron enters the disc-shaped cavity from the gate through the main runner, secondary runner and ingate, which can make the molten iron evenly distributed to each cavity and avoid defects such as porosity and sand inclusion in the die casting. 2. The chill is placed on the side of the disc-shaped cavity away from the gate, which allows the molten iron to cool rapidly after contact with the chill, eliminating internal defects in the casting and reducing the tendency of shrinkage porosity; 3. An insulating sleeve is provided outside the riser, which can keep the molten iron at a high temperature and flow to all corners of the mold cavity, and gradually cool it from the cold iron to the riser, avoiding defects such as porosity and shrinkage, and improving the quality of the casting. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the four-cavity disc-shaped injection structure provided in the embodiments of this application.

[0024] Explanation of reference numerals in the attached drawings: 1-Proximal cavity; 2-Distant cavity; 3-Main runner; 4-Gate; 5-Secondary runner; 6-Ingate; 7-Gate; 8-Chiller; 9-Riser; 10-Ventilation and slag discharge port. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 This application will be described in further detail.

[0026] This application discloses a four-cavity disc-shaped injection structure.

[0027] like Figure 1 As shown, the four-cavity disc-shaped gating structure includes a disc-shaped cavity, a main runner 3, a secondary runner 5, an ingate 6, and a chill 8. The disc-shaped cavity, main runner 3, secondary runner 5, and ingate 6 are interconnected in a specific positional relationship. The chill 8 is positioned at a specific location within the disc-shaped cavity, achieving the effect of uniformly filling the cavity with molten iron, reducing internal defects in the casting, and improving casting quality. The reasonable gating layout disclosed in this application allows for orderly flow of molten iron, while the chill 8 accelerates the cooling of the molten iron, avoiding problems such as shrinkage porosity.

[0028] like Figure 1 As shown, specifically, there are four disc-shaped cavities, including two proximal cavities 1 arranged laterally and two distal cavities 2 arranged laterally on one side of the proximal cavities 1. The four disc-shaped cavities are arranged in a regular quadrilateral. This arrangement makes the entire casting structure more regular and is conducive to the uniform distribution of molten iron. The interior of the disc-shaped cavities is a cavity used to accommodate the sand core and cast the disc-shaped body.

[0029] The main horizontal gating 3 is arranged longitudinally and is located between the two near-end cavities 1 and the two far-end cavities 2. The center of the main horizontal gating 3 is located at the center of the four disc-shaped cavities. The end of the main horizontal gating 3 closest to the near-end cavity 1 is provided with a gate 4. The main horizontal gating 3 is the main channel for molten iron to enter the entire casting structure. The center of the main horizontal gating 3 is set to connect with the secondary horizontal gating 5 to ensure that the molten iron diffuses evenly from the center to the surrounding area. The part that exceeds the secondary horizontal gating 5 is an extension section. By increasing the flow path length of the main horizontal gating 3, the extension section can buffer the impact force of the molten iron when it first enters, avoid the molten iron directly impacting the connection part of the secondary horizontal gating 5, and at the same time make the flow velocity of the molten iron more stable before entering the secondary horizontal gating 5, thereby reducing the risk of turbulence and slag entrapment.

[0030] The gate 4 is the entrance for molten iron to enter the main horizontal gating 3, which facilitates the smooth flow of molten iron.

[0031] The secondary horizontal runner 5 is arranged laterally and located between two adjacent disc-shaped cavities along the longitudinal direction. The center of the secondary horizontal runner 5 is located at the center of the four disc-shaped cavities, and the secondary horizontal runner 5 is connected to the main horizontal runner 3. The secondary horizontal runner 5 serves to further distribute the molten iron in the main horizontal runner 3 to each disc-shaped cavity. It works in conjunction with the main horizontal runner 3 to form a complete runner network. The size and shape of the secondary horizontal runner 5 need to be determined according to the size of the disc-shaped cavity and the flow rate of the molten iron; in this application, it is a rectangular cross-section channel.

[0032] The ingate 6 is arranged longitudinally and located at both ends of the secondary runner 5. The two ends of the ingate 6 are connected to the near-end cavity 1 and the far-end cavity 2, located on the side of the main runner 3 closest to itself, respectively, via gates 74. The ingate 6 is the final channel for molten iron to enter the disc-shaped cavity from the secondary runner 5. Its design allows for precise control of the position and flow rate of the molten iron entering the cavity. The inner diameter of the ingate 6 is relatively large to ensure that the molten iron can be smoothly injected into the cavity, reducing flow resistance. Gates 74 are the connection points between the ingate 6 and the disc-shaped cavity.

[0033] There are four chills 8, corresponding to four disc-shaped cavities, each located on the side of the disc-shaped cavity furthest from the gate 4 connected to it. The function of the chills 8 is to rapidly cool the molten iron through heat collection, eliminating internal defects in the casting and reducing shrinkage porosity. The shape of the chills 8 can be designed according to the outer circumference of the disc-shaped cavity, and should at least one-third of the outer circumference of the disc-shaped cavity. The chills 8 can be constructed as cold magnets, using magnetic adsorption to fix them to the disc-shaped cavity, simplifying the installation process.

[0034] The ingate 6 is positioned so that the center line connecting the near-end cavity 1 and the far-end cavity 2, which are connected to it, coincides with the center line. This arrangement allows molten iron to enter the cavity more evenly, avoiding problems such as uneven flow. A riser 9 is located at the center of the ingate 6. The function of the riser 9 is to replenish molten iron as it cools and shrinks, preventing defects such as shrinkage cavities in the casting. An insulation sleeve is installed outside the riser 9. The insulation sleeve is generally made of insulating material, such as ceramic fiber, which keeps the molten iron inside the riser 9 at a high temperature, extending the feeding time.

[0035] Two venting and slag removal ports 10 are provided on the distal cavity 2, located at both ends of the diameter extending laterally from the distal cavity 2. Two venting and slag removal ports 10 are also provided on the proximal cavity 1, located at both ends of the diameter pointing towards the center of the four disc-shaped cavities in the proximal cavity 1. The function of the venting and slag removal ports 10 is to discharge gas and impurities from the cavity, ensuring the quality of the casting. Since the near-end cavity 1 is close to the gate 4, the molten iron flows in more easily. Venting and slag discharge ports 10 are set at both ends of the diameter of the near-end cavity 1 pointing to the center of the four disc-shaped cavities. This is conducive to the discharge of gas and slag in the initial filling stage, reducing defects such as scorching and material shortage caused by early gas compression, and adapting to the characteristics of high melt pressure and fast filling speed in the near end. On the other hand, the far-end cavity 2 is far from the gate 4, and the molten iron flows in more difficultly and there may be gas and slag accumulation. Venting and slag discharge ports 10 are set at both ends of the diameter extending laterally in the far-end cavity 2. This is conducive to the discharge of residual gas and slag at the end of the cavity, preventing bubbles, depressions or poor welding caused by low end pressure and gas accumulation. This specifically solves the venting and slag discharge needs of the far-end filling area.

[0036] The implementation principle of the four-cavity disc casting structure in this application embodiment is as follows: molten iron enters from the gate 4 of the main runner 3, is distributed through the main runner 3 and secondary runners 5, and then enters each disc-shaped cavity through the ingate 6 and gate 74. During the process of molten iron filling the cavity, chills 8 accelerate the cooling of the molten iron, risers 9 replenish molten iron as it cools and shrinks, and venting and slag removal ports 10 discharge gases and impurities from the cavity. This casting structure design allows molten iron to fill the cavity evenly, reducing the probability of defects such as porosity and shrinkage in the casting, improving the quality and performance of the casting, and significantly improving the casting effect compared to existing technologies.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A four-cavity disc-shaped injection structure, characterized in that, include: The disc-shaped cavity has four disc-shaped cavities, including two proximal cavities (1) arranged laterally and two distal cavities (2) arranged laterally on one side of the proximal cavities (1). The disc-shaped cavities are arranged in a regular quadrilateral shape. The main horizontal runner (3) is arranged longitudinally and is located between the two proximal cavities (1) and the two distal cavities (2). The center of the main horizontal runner (3) is located at the center of the four disc-shaped cavities. The main horizontal runner (3) has a gate (4) at one end near the proximal cavity (1). The secondary horizontal runner (5) is arranged in the horizontal direction and is located between two adjacent disc-shaped cavities in the longitudinal direction. The center of the secondary horizontal runner (5) is located at the center of the four disc-shaped cavities. The secondary horizontal runner (5) is connected to the main horizontal runner (3). The ingate (6) is arranged longitudinally and located at both ends of the secondary runner (5). The two ends of the ingate (6) are connected to the proximal cavity (1) and the distal cavity (2) located on the side of the main runner (3) near itself through the inlet (7) and (4) respectively. Chills (8), there are four chills (8), and the chills (8) are respectively located on the side of the disc-shaped cavity away from the gate (4) connected to it.

2. The four-cavity disc-shaped injection structure according to claim 1, characterized in that, The position of the ingate (6) coincides with the center line connecting the proximal cavity (1) and the distal cavity (2) connected to it.

3. The four-cavity disc-shaped injection structure according to claim 1, characterized in that, A riser (9) is provided at the center of the ingate (6).

4. The four-cavity disc-shaped injection structure according to claim 3, characterized in that, The riser (9) is provided with an insulating sleeve.

5. The four-cavity disc-shaped injection structure according to claim 1, characterized in that, The distal cavity (2) is provided with two exhaust and slag discharge ports (10), which are located at both ends of the diameter of the distal cavity (2) extending laterally.

6. The four-cavity disc-shaped injection structure according to claim 1, characterized in that, The proximal cavity (1) is provided with two exhaust and slag discharge ports (10), which are located at both ends of the diameter of the proximal cavity (1) pointing to the center of the four disc-shaped cavities.

7. The four-cavity disc-shaped injection structure according to claim 1, characterized in that, The chill (8) surrounds at least one-third of the outer circumference of the disc-shaped cavity.

8. The four-cavity disc-shaped injection structure according to claim 1, characterized in that, The chill (8) is constructed as a cold magnet.

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