Pouring gate system for exhausting and deslagging of automobile aluminum alloy bracket for die casting

Abstract

The utility model is suitable for the technical field of automobile aluminum alloy bracket production, and provides a pouring gate system for exhausting and deslagging of an automobile aluminum alloy bracket for die casting, which comprises a material handle, a pouring gate part is arranged on one side of the material handle, a product part is arranged on one side of the pouring gate part far away from the material handle, and exhausting parts are symmetrically arranged on the product part along the central axis; the pouring gate part comprises a main pouring gate, a first turnoff is arranged on one side, far away from the material handle, of the main pouring gate, a second turnoff is arranged on one side, far away from the first turnoff, of the main pouring gate, a third turnoff is arranged on one side, far away from the second turnoff, of the main pouring gate, and a fourth turnoff is arranged on one side, far away from the third turnoff, of the main pouring gate; the product part comprises a product body. The device solves the problems of difficulty in cleaning, higher cost and easiness in blockage, and achieves the functions of reducing air entrapment generated by die casting, avoiding local cold shut or air holes of a product, improving the product precision, ensuring smooth exhaust every time, ensuring the filling uniformity and improving the filling synchronism.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile aluminum alloy bracket production, and more specifically, to a runner system for exhaust and slag removal of automobile aluminum alloy bracket used for die casting. Background Art

[0002] During the production process of automotive aluminum alloy brackets, if the gas inside the mold cannot be promptly discharged, it will form pores in the casting, reducing the strength and sealing of the product. For automotive aluminum alloy brackets, pores may cause the bracket to break or leak during use, seriously affecting the safety and reliability of the vehicle.

[0003] Currently, exhaust and slag removal for aluminum alloy brackets are mainly achieved by creating exhaust grooves on the parting surface, core, and slider of the mold. Alternatively, for some complex mold structures, exhaust plugs can be installed at key locations. However, the creation of exhaust grooves means that a portion of material is removed from specific parts of the mold, which disrupts the original integrity and uniformity of the mold. During the casting process, impurities will flow into the exhaust grooves with the flow of aluminum alloy liquid and accumulate. However, the irregular shape of the exhaust grooves makes cleaning more difficult. Compared with ordinary mold parts, exhaust plugs are usually made of special breathable materials such as graphite and ceramic. These materials have good air permeability and high temperature resistance, but are relatively expensive. Although the exhaust plugs have good air permeability, they are still prone to clogging during actual production.

[0004] Therefore, a runner system for exhaust and slag removal of die-cast automotive aluminum alloy brackets is proposed, which solves the problems of difficult cleaning, high cost, and easy clogging, reduces air entrapment generated by die casting, avoids local cold shuts or air holes in the product, improves product precision, ensures smooth exhaust each time, ensures filling uniformity, and improves the synchronization of filling. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of the present utility model is to provide a runner system for exhaust and slag removal of die-casting automotive aluminum alloy brackets, which reduces air entrapment generated by die-casting, avoids local cold shuts or air holes in the product, improves product precision, ensures smooth exhaust each time, ensures uniform filling, and improves the synchronization of filling.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A runner system for exhaust and slag removal of a die-cast automotive aluminum alloy bracket comprises a material handle, a runner portion is provided on one side of the material handle, a product portion is provided on the runner portion away from the material handle, and the product portion is symmetrically provided with exhaust portions along the central axis; the runner portion comprises a main runner, a first branch is provided on the side of the main runner away from the material handle, a second branch is provided on the side of the main runner away from the first branch, a third branch is provided on the side of the main runner away from the second branch, and a fourth branch is provided on the side of the main runner away from the third branch; the product portion comprises a product body, a fourth slag bag is provided on the side of the product body close to the exhaust portion, a fifth slag bag is provided on the side of the product body away from the fourth slag bag, and a sixth slag bag is provided on the side of the product body away from the fifth slag bag.

[0008] The present invention is further configured as follows: the first fork and the second fork are arranged on one side of the central axis, and the third fork and the fourth fork are arranged on the other side of the central axis.

[0009] By adopting the above technical solution, the main runner is the primary channel for molten aluminum filling. Molten aluminum flows from the material handle into the main runner and then flows toward the first, second, third, and fourth bifurcations, dividing the molten aluminum into multiple streams to achieve optimal filling results. Ribs are installed on the mold corresponding to the first, second, third, and fourth bifurcations to push the molten aluminum toward the upper slider, better pushing the gas out of the slag ladle mouth and improving exhaust efficiency. At the same time, the third bifurcations on the right are larger than the second bifurcations on the left, which can speed up the passage of molten aluminum flowing into the third bifurcations. Furthermore, the installation of buffer bags on the first, second, third, and fourth bifurcations can improve the synchronization of filling.

[0010] The utility model is further configured as follows: the product body is connected to the first fork, the second fork, the third fork and the fourth fork, and a first slag bag is provided on the side of the product body close to the main pouring channel.

[0011] The utility model is further configured as follows: the first slag bag is arranged along the central axis, and a second slag bag is arranged on the side of the product body away from the first slag bag.

[0012] The utility model is further configured as follows: a third slag bag is provided on the side of the product body away from the second slag bag, a seventh slag bag is provided on the side of the product body close to the fourth slag bag, and an eighth slag bag is symmetrically provided on the product body along the central axis.

[0013] By adopting this technical solution, the first, second, third, seventh, and eighth slag ladles can discharge slag or gas during filling. The seventh and eighth slag ladles form flow channels with the product body, allowing molten aluminum to enter the seventh and eighth slag ladles through the flow channels. To prevent localized cold shuts or air holes in the product body, the fourth, fifth, and sixth slag ladles are concentrated at the end of the top-side slider, guiding all gas out of the mold cavity for optimal slag and exhaust. During filling, molten aluminum entering from the first, second, third, and fourth forks flows from the product to the exhaust section and from the fixed mold to the movable mold, ensuring uniform filling. The movable mold portion of the product forming mold is primarily used for exhaust, while the fixed mold portion is primarily used for shaping. This clear division of labor facilitates mold maintenance.

[0014] The utility model is further configured as follows: the exhaust portion includes an overflow trough, wherein one group of the overflow troughs is connected to the fourth slag bag, and another group of the overflow troughs is connected to the sixth slag bag, and a C-shaped exhaust plate is provided on the side of the overflow trough away from the product portion.

[0015] By adopting this technical solution, the overflow trough serves as a channel connecting the slag bag and the C-shaped exhaust plate. After exhausting the gas in the mold cavity, the C-shaped exhaust plate is completely removed, leaving no residue on the exhaust plate. This ensures smooth exhaust for the next mold run, improving exhaust efficiency and product production efficiency. During filling, a vacuum device is installed at the end of the mold outside the C-shaped exhaust plate to effectively remove air from the cavity and prevent the formation of air holes.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] 1. The main runner is the primary channel for molten aluminum filling. Molten aluminum flows from the material handle into the main runner and then flows toward the first, second, third, and fourth bifurcations, dividing the molten aluminum into multiple streams to achieve optimal filling. Ribs are installed on the mold corresponding to the first, second, third, and fourth bifurcations to push the molten aluminum toward the upper slider, better discharging gases toward the slag ladle opening and improving exhaust efficiency. Furthermore, the third bifurcations on the right are larger than the second bifurcations on the left, allowing the molten aluminum flowing into the third bifurcations to pass more quickly. Furthermore, the installation of buffers at the first, second, third, and fourth bifurcations improves filling synchronization.

[0018] 2. The first, second, third, seventh, and eighth slag ladles can discharge slag or gas during filling. The seventh and eighth slag ladles form flow grooves with the product body, allowing molten aluminum to enter the seventh and eighth slag ladles through the flow grooves. To prevent localized cold shuts or air holes in the product body, the fourth, fifth, and sixth slag ladles are concentrated at the end of the top-side slider to guide all gas out of the mold cavity, achieving optimal exhaust and slag removal. During filling, the molten aluminum entering from the first, second, third, and fourth forks flows from the product to the exhaust section and from the fixed mold to the movable mold, ensuring uniform filling. The movable mold portion of the product forming mold is primarily used for exhaust, while the fixed mold portion is primarily used for shaping. This clear division of labor facilitates mold maintenance.

[0019] 3. The overflow trough is the channel connecting the slag bag and the C-type exhaust plate. After the C-type exhaust plate exhausts the gas in the mold cavity, it is completely removed without any residue on the exhaust plate, ensuring smooth exhaust for the next mold, improving exhaust efficiency and product production efficiency. During filling, a vacuum device is installed at the end of the mold outside the C-type exhaust plate to effectively remove air from the cavity and effectively prevent the formation of air holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of the runner system for exhaust and slag removal of the die-cast automotive aluminum alloy bracket of the utility model.

[0021] Figure 2 It is a structural schematic diagram of the top of the utility model.

[0022] Figure 3 This is a structural diagram of the utility model from another perspective.

[0023] Description of reference numerals: 1. material handle;

[0024] 2. Runner section; 21. Main runner; 22. First fork; 23. Second fork; 24. Third fork; 25. Fourth fork;

[0025] 3. Product department; 31. Product body; 32. First slag bag; 33. Second slag bag; 34. Third slag bag; 35. Fourth slag bag; 36. Fifth slag bag; 37. Sixth slag bag; 38. Seventh slag bag; 39. Eighth slag bag;

[0026] 4. Exhaust section; 41. Overflow trough; 42. C-type exhaust plate. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0029] For example 1, please refer to Figure 1-3 , the utility model provides the following technical solutions:

[0030] Specifically refers to a runner system for exhaust and slag removal of die-cast automotive aluminum alloy brackets, see Figure 1 , including a material handle 1, which is set to a diameter of 90mm to achieve the most appropriate filling degree, reducing the air entrainment of the molten aluminum in the injection chamber during casting, which affects the filling effect. A runner portion 2 is provided on one side of the material handle 1. The runner portion 2 provides a filling channel for the molten aluminum, facilitating the casting of the product. A product portion 3 is provided on the side of the runner portion 2 away from the material handle 1. The product portion 3 provides shape for the product and discharges waste slag or gas during the filling process during the casting process to avoid local cold shuts or air holes in the product. The product portion 3 is symmetrically provided with exhaust portions 4 along the central axis. After the gas in the cavity is discharged through the exhaust portion 4, no residue will remain on the exhaust plate, which can ensure smooth exhaust of the next mold.

[0031] See Figure 2-3 The runner portion 2 includes a main runner 21, a first fork 22 is provided on the side of the main runner 21 away from the material handle 1, a second fork 23 is provided on the side of the main runner 21 away from the first fork 22, a third fork 24 is provided on the side of the main runner 21 away from the second fork 23, and a fourth fork 25 is provided on the side of the main runner 21 away from the third fork 24; the first fork 22 and the second fork 23 are provided on one side of the central axis, and the third fork 24 and the fourth fork 25 are provided on the other side of the central axis.

[0032] Specifically, the main runner 21 is the primary channel for molten aluminum filling. Molten aluminum flows from the handle 1 into the main runner 21 and flows toward the first, second, third, and fourth bifurcations 22, 23, 24, and 25, dividing the molten aluminum into multiple streams to achieve optimal filling. Ribs are installed on the mold corresponding to the first, second, third, and fourth bifurcations 22, 23, 24, and 25 to push the molten aluminum toward the upper slider, better discharging gas toward the slag ladle opening and improving exhaust efficiency. Furthermore, the third bifurcations 24 on the right are larger than the second bifurcations 23 on the left, enabling faster passage of molten aluminum flowing into the third bifurcations 24. Furthermore, the provision of buffers at the first, second, third, and fourth bifurcations 22, 23, 24, and 25 improves filling synchronization.

[0033] See Figure 2-3The product portion 3 includes a product body 31. A fourth slag ladle 35 is provided on the side of the product body 31 near the exhaust portion 4. A fifth slag ladle 36 is provided on the side of the product body 31 away from the fourth slag ladle 35. A sixth slag ladle 37 is provided on the side of the product body 31 away from the fifth slag ladle 36. The product body 31 is connected to the first branch 22, the second branch 23, the third branch 24, and the fourth branch 25. A first slag ladle 32 is provided on the side of the product body 31 near the main runner 21. The first slag ladle 32 is arranged along the central axis. A second slag ladle 33 is provided on the side of the product body 31 away from the first slag ladle 32. A third slag ladle 34 is provided on the side of the product body 31 away from the second slag ladle 33. A seventh slag ladle 38 is provided on the side of the product body 31 near the fourth slag ladle 35. An eighth slag ladle 39 is symmetrically arranged along the central axis of the product body 31.

[0034] Specifically, the molten aluminum flows into the first, second, third, seventh, and eighth slag ladles 32, 33, 34, 38, and 39, respectively, to expel slag or gas during filling. Flow channels exist between the seventh and eighth slag ladles 38, 39 and the product body 31, allowing the molten aluminum to flow through these channels. To prevent localized cold shuts or air holes in the product body 31, the fourth, fifth, and sixth slag ladles 35, 36, and 37 are concentrated at the end of the topside slider, guiding all gas out of the mold cavity and achieving optimal slag and exhaust. During filling, the molten aluminum entering from the first, second, third, and fourth forks 22, 23, 24, and 25 flows from the product section 3 to the exhaust section 4, and from the fixed mold to the movable mold, ensuring uniform filling. The movable mold portion of the product forming mold is primarily used for exhaust, while the fixed mold portion is primarily used for shaping. This clear division of labor facilitates mold maintenance.

[0035] See Figure 2 The exhaust section 4 includes overflow troughs 41, one set of which is connected to the fourth slag bag 35, and another set of which is connected to the sixth slag bag 37. A C-shaped exhaust plate 42 is provided on the side of the overflow trough 41 away from the product section 3. The overflow trough 41 is a channel connecting the slag bag and the C-shaped exhaust plate 42. After exhausting the gas in the mold cavity, the C-shaped exhaust plate 42 is removed as a whole without any residue on the exhaust plate, ensuring smooth exhaust for the next mold, improving exhaust efficiency and product production efficiency. During filling, a vacuum device is provided at the end of the mold outside the C-shaped exhaust plate 42 to effectively remove air from the cavity and effectively prevent the formation of air holes.

[0036] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

Claims

1. A runner system for exhaust and slag removal of die-cast automotive aluminum alloy brackets, characterized by: The invention comprises a material handle (1), wherein a runner portion (2) is provided on one side of the material handle (1), a product portion (3) is provided on a side of the runner portion (2) away from the material handle (1), and an exhaust portion (4) is symmetrically provided on the product portion (3) along a central axis; The runner portion (2) includes a main runner (21), a first fork (22) is provided on the side of the main runner (21) away from the material handle (1), a second fork (23) is provided on the side of the main runner (21) away from the first fork (22), a third fork (24) is provided on the side of the main runner (21) away from the second fork (23), and a fourth fork (25) is provided on the side of the main runner (21) away from the third fork (24); The product portion (3) comprises a product body (31), a fourth slag bag (35) being provided on a side of the product body (31) close to the exhaust portion (4), a fifth slag bag (36) being provided on a side of the product body (31) away from the fourth slag bag (35), and a sixth slag bag (37) being provided on a side of the product body (31) away from the fifth slag bag (36).

2. The runner system for exhaust and slag removal of a die-cast automotive aluminum alloy bracket according to claim 1, characterized in that: The first fork (22) and the second fork (23) are arranged on one side of the central axis, and the third fork (24) and the fourth fork (25) are arranged on the other side of the central axis.

3. The runner system for exhaust and slag removal of a die-cast automotive aluminum alloy bracket according to claim 1, characterized in that: The product body (31) is connected to the first fork (22), the second fork (23), the third fork (24), and the fourth fork (25). A first slag bag (32) is provided on one side of the product body (31) close to the main pouring channel (21).

4. The runner system for exhaust and slag removal of a die-cast automotive aluminum alloy bracket according to claim 3, characterized in that: The first slag bag (32) is arranged along the central axis, and a second slag bag (33) is arranged on a side of the product body (31) away from the first slag bag (32).

5. The runner system for exhaust and slag removal of a die-cast automotive aluminum alloy bracket according to claim 4, characterized in that: A third slag bag (34) is provided on the side of the product body (31) away from the second slag bag (33), a seventh slag bag (38) is provided on the side of the product body (31) close to the fourth slag bag (35), and an eighth slag bag (39) is symmetrically provided on the product body (31) along the central axis.

6. The runner system for exhaust and slag removal of a die-cast automotive aluminum alloy bracket according to claim 1, characterized in that: The exhaust section (4) comprises overflow troughs (41), wherein one group of the overflow troughs (41) is connected to the fourth slag bag (35), and another group of the overflow troughs (41) is connected to the sixth slag bag (37). A C-shaped exhaust plate (42) is provided on the side of the overflow trough (41) away from the product section (3).

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