Die-casting sprue structure of magnesium-aluminum alloy complex type center control support
By designing a die-cast gate structure with multiple runners, multiple gates and multiple slag packets, and combining with a wave-type exhaust tank, the problem of difficult to realize the die-casting of complex central control brackets in the existing technology is solved, and effective The exhaust and product quality improvement.
Patent Information
- Application Number
- CN202323573786.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2033-12-27
AI Technical Summary
Existing die-casting molds are difficult to effectively realize the die-casting of complex central control brackets of magnesium-aluminum alloys. The structures of single runners and single gates cannot meet the needs of complex cavity, resulting in the inability to effectively discharge gas in the cavity, resulting in depressions and cavity. or problems such as air holes.
A die-cast gate structure of a complex central control bracket of magnesium-aluminum alloy was designed, using a multi-spin, multi-gate and multi-slag packet structure, and combined with a wave-type double exhaust tank and a single exhaust tank, the Exhaust effectively in a limited space.
Effective exhaust in the complex central control bracket cavity is achieved, which avoids the generation of depressions, cavity and pores, improves the density and quality of the product, and reduces the stability and cost of production.
Smart Images
Figure CN222470664U_ABST
Abstract
Description
Technical field:
[0001] The utility model relates to the technical field of die-casting dies, and more specifically to a die-casting gate structure of a magnesium-aluminum alloy complex central control bracket. Background technology:
[0002] A die-casting mold is a tool for casting metal parts. An existing die-casting mold is provided with a die-casting cavity, a gate and a slag bag are provided on the cavity, an air intake channel is connected to the slag bag, and an exhaust groove is connected to the end of the air intake channel. For a simple die-casting cavity, a single runner, a single gate and a simple exhaust structure can be used, but for a complex die-casting, the die-casting cavity is also complex, such as a complex magnesium-aluminum alloy central control bracket for a car. The structure of the central control bracket is very complex, but the single runner and single gate structure cannot be die-casted. For the die-casting of the central control bracket, some people propose to use a multi-runner, multi-gate, and multi-slag bag structure to achieve die-casting, so it is necessary to design a gate structure with multiple runners, multiple gates and multiple slag bags. When designing the structure with multiple gates and multiple slag bags, it is necessary to design a corresponding exhaust groove structure, which can effectively realize the gas discharge in the die-casting cavity and avoid the appearance of depressions on the die-casting or cavities, pores and other structures inside. Utility model content:
[0003] The purpose of the utility model is to address the deficiencies of the prior art and to provide a die-casting gate structure for a complex central control bracket of a magnesium-aluminum alloy. A gate structure with multiple gates and reasonable distribution is designed for the complex central control bracket, and an integrated exhaust groove structure is proposed to achieve effective exhaust in a limited die-casting space.
[0004] A die-casting gate structure of a complex central control bracket of a magnesium-aluminum alloy comprises a barrel, a left main runner and a right main runner are respectively provided on the barrel, and a plurality of left branch runners and right branch runners are respectively provided on the main runners on the left and right sides of the barrel; a central control bracket cavity is provided at the rear of the barrel, and a plurality of left gates and right gates are respectively formed on the left and right sides of the front side of the central control bracket cavity; the ends of the left branch runner and the right branch runner are respectively connected to the left gate and the right gate;
[0005] A plurality of first slag bags corresponding to the left gate and the right gate are respectively formed at both ends and the rear side of the cavity of the central control bracket, and the first slag bags are connected to exhaust channels, and the ends of the exhaust channels are respectively connected to the wave-shaped double exhaust grooves and the single exhaust groove;
[0006] The double exhaust grooves include a rectangular exhaust cavity, and a plurality of groups of arc-shaped main wave peaks are provided on the side of the exhaust cavity away from the exhaust channel, and main wave valleys are provided between adjacent main wave peaks; a plurality of groups of arc-shaped secondary wave peaks are provided in the exhaust cavity on the side close to the exhaust channel, and the secondary wave peaks are composed of two side-by-side ridges, and strip-shaped valleys are provided between the ridges, and secondary wave valleys connected to the valleys are provided between adjacent secondary wave peaks; a partition strip is provided between the secondary wave peaks and the side wall of the exhaust cavity to separate the exhaust channel outlet.
[0007] Preferably, a plurality of grooves are formed on the ridges of the secondary wave crests.
[0008] Preferably, the main runners on the left and right sides of the barrel are inclined, and the angle between the main runners is 140° to 150°.
[0009] Preferably, the width of the main runner is greater than the width of the left branch runner and the right branch runner.
[0010] Preferably, the widths of the left gate and the right gate are respectively greater than the widths of the left branch runner and the right branch runner.
[0011] The thickness of the left branch runner and the right branch runner from left to right on the central control bracket cavity gradually decreases.
[0012] Preferably, a plurality of second slag bags are formed on the front side of the cavity of the central control bracket, and the second slag bags are distributed between adjacent left gates, adjacent right gates, and between the left gate and the right gate.
[0013] The beneficial effects of the utility model are:
[0014] The die-casting gate structure proposes a reasonably distributed multi-gate for the complex central control bracket, and also proposes an integrated exhaust groove structure to achieve effective exhaust in a limited die-casting space. Description of the drawings:
[0015] Figure 1 It is a schematic diagram of the structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the structure of the double exhaust slots in the utility model;
[0017] Figure 3 It is a schematic diagram of the partition die-casting of the utility model.
[0018] In the figure: 1. barrel; 2. main runner; 3. left branch runner; 4. right branch runner; 5. center control bracket cavity; 6. left gate; 7. right gate; 8. double exhaust groove; 9. first slag bag; 10. exhaust channel; 11. single exhaust groove; 12. second slag bag. Specific implementation method:
[0019] Example: See Figure 1 , 2 As shown, a die-casting gate structure of a magnesium-aluminum alloy complex central control bracket comprises a barrel 1, on which two left and right main runners 2 are respectively provided, and the main runners 2 on the left and right sides of the barrel 1 are respectively provided with a plurality of left branch runners 3 and right branch runners 4; a central control bracket cavity 5 is provided at the rear of the barrel 1, and a plurality of left gates 6 and right gates 7 are respectively formed on the left and right sides of the front side of the central control bracket cavity 5; the ends of the left branch runner 3 and the right branch runner 4 are respectively connected to the left gate 6 and the right gate 7;
[0020] The two ends and the rear side of the central control bracket cavity 5 are respectively formed with a plurality of first slag bags 9 opposite to the left gate 6 and the right gate 7, the first slag bags 9 are connected with exhaust channels 10, and the ends of the exhaust channels 10 are respectively connected to the wave-shaped double exhaust grooves 8 and the single exhaust groove 11;
[0021] The double exhaust groove 8 comprises a rectangular exhaust cavity 81, and a plurality of groups of arc-shaped main wave crests 87 are arranged on the side of the exhaust cavity 81 away from the exhaust passage 10, and a main wave valley 88 is arranged between adjacent main wave crests 87; a plurality of groups of arc-shaped secondary wave crests 83 are arranged in the exhaust cavity 81 on the side close to the exhaust passage 10, and the secondary wave crest 83 is composed of two convex ridges arranged side by side, and a strip-shaped valley 85 is arranged between the convex ridges, and a secondary wave valley 84 connected to the valley 85 is arranged between adjacent secondary wave crests 83; the secondary wave crests 83 and the exhaust cavity 8 1 is provided with a partition bar 82 for separating the outlet of the exhaust channel 10; the main structure of the single exhaust groove 11 is composed of an air cavity and strip-shaped wave crests and troughs, and there is no structure of secondary wave crests 83, secondary wave troughs 84 and valleys 85. The double exhaust groove 8 is equivalent to combining two single exhaust grooves 1 into one. Compared with two single exhaust grooves 1, the range of the exhaust groove cavity can be reduced, and compared with making two single exhaust grooves 1, the production is more convenient and saves time. Therefore, the structure of the double exhaust groove 8 can reduce the manufacturing difficulty and manufacturing cost of the die-casting mold.
[0022] A plurality of grooves 86 are formed on the ridges of the secondary wave crests 83, and multiple exhaust channels are provided on the basis of slow exhaust to avoid exhaust failure due to blockage of a certain channel.
[0023] The main runners 2 on the left and right sides of the barrel 1 are arranged obliquely, and the angle between the main runners 2 is 140° to 150°.
[0024] The width of the main runner 2 is greater than the width of the left branch runner 3 and the right branch runner 4; the left gate 6 and the right gate 7 are distributed on the front side of the central control bracket cavity 5 in a manner with approximately the same spacing.
[0025] The widths of the left gate 6 and the right gate 7 are respectively greater than the widths of the left branch runner 3 and the right branch runner 4 .
[0026] A plurality of second slag bags 12 are formed on the front side of the central control bracket cavity 5 , and the second slag bags 12 are distributed between adjacent left gates 6 , adjacent right gates 7 , and between the left gate 6 and the right gate 7 .
[0027] The thickness of the left branch runner 3 and the right branch runner 4 on the central control bracket cavity 5 gradually decreases from left to right. The runner diameters of the left branch runner 3 and the right branch runner 4 include width and thickness. The thickness gradually decreases, indicating that the diameter of the branch runner from left to right gradually decreases, and the amount of magnesium liquid entering the central control bracket cavity 5 through the branch runner gradually decreases from left to right.
[0028] Working principle: The utility model is a die-casting gate structure of a complex central control bracket of magnesium-aluminum alloy, which proposes to set multiple groups of left gates 6 and right gates 7 on the front side of the complex central control bracket cavity 5, and input magnesium liquid to the left gate 6 and the right gate 7 respectively based on the reasonably distributed main runner 2, left branch runner 3 and right branch runner 4;
[0029] like Figure 3 As shown, based on each left gate 6 and right gate 7, multiple die-casting areas a, b, c, d, e, f, and g can be set, and each die-casting area is provided with a gate, so that the magnesium liquid can enter the die-casting area at the same time to fill the central control bracket cavity 5. Under the gradient change of the flow channel area, the magnesium liquid can be accelerated to flow into the central control bracket cavity 5, avoiding the problem of rapid cooling of the magnesium liquid and turbulence. At the same time, the air in the central control bracket cavity 5, under the extrusion of the magnesium liquid, quickly passes through the first slag bag 9, the exhaust channel 10, and the wavy exhaust groove (including the double exhaust groove 8 and the single exhaust groove 11), effectively avoiding the generation of pores inside the die-casting, increasing the density of the product, and enabling the waste slag and air to be smoothly discharged during rapid die-casting, so that the product quality is effectively improved. Multiple exhaust channels 10 converge and are connected to the exhaust groove, which can not only ensure the effective exhaust area, but also reduce the exhaust area of the entire die casting, thereby reducing the influence of the expansion force on the size of the casting in the mold opening direction, effectively ensuring the stability of production, reducing the scrap rate of products, and saving the production and operation costs of the enterprise.
[0030] The embodiments are used to illustrate the present invention, but not to limit the present invention. Any person skilled in the art may modify the embodiments without violating the spirit and scope of the present invention, and therefore the scope of protection of the present invention shall be as set forth in the claims of the present invention.
Claims
1. A die-casting gate structure for a complex central control bracket of a magnesium-aluminum alloy, comprising a barrel (1), on which two main runners (2) are respectively provided, one on the left and the other on the right, and characterized in that: A plurality of left branch runners (3) and right branch runners (4) are respectively arranged on the main runners (2) on the left and right sides of the barrel (1); a central control bracket cavity (5) is arranged at the rear of the barrel (1); a plurality of left gates (6) and right gates (7) are respectively formed on the left and right sides of the front side of the central control bracket cavity (5); the ends of the left branch runner (3) and the right branch runner (4) are respectively connected to the left gate (6) and the right gate (7); A plurality of first slag bags (9) are formed at both ends and the rear side of the central control bracket cavity (5) and are opposite to the left gate (6) and the right gate (7). The first slag bags (9) are connected to exhaust channels (10). The ends of the exhaust channels (10) are respectively connected to the wave-shaped double exhaust grooves (8) and the single exhaust groove (11). The double exhaust groove (8) comprises a rectangular exhaust cavity (81), wherein a side of the exhaust cavity (81) away from the exhaust channel (10) is provided with a plurality of groups of arc-shaped main wave peaks (87), and a main wave valley (88) is provided between adjacent main wave peaks (87); a side of the exhaust cavity (81) close to the exhaust channel (10) is provided with a plurality of groups of arc-shaped secondary wave peaks (83), wherein the secondary wave peaks (83) are composed of two convex ridges arranged side by side, and a strip-shaped valley (85) is provided between the convex ridges, and a secondary wave valley (84) connected to the valley (85) is provided between adjacent secondary wave peaks (83); and a partition bar (82) is provided between the secondary wave peaks (83) and the side wall of the exhaust cavity (81) to separate the outlet of the exhaust channel (10).
2. The die-casting gate structure of the complex central control bracket of magnesium-aluminum alloy according to claim 1 is characterized by: A plurality of grooves (86) are formed on the ridges of the secondary wave crests (83).
3. The die-casting gate structure of the complex central control bracket of magnesium-aluminum alloy according to claim 1 is characterized in that: The main runners (2) on the left and right sides of the barrel (1) are arranged in an inclined manner, and the angle between the main runners (2) is 140° to 150°.
4. The die-casting gate structure of the complex central control bracket of magnesium-aluminum alloy according to claim 3 is characterized by: The width of the main runner (2) is respectively greater than the width of the left branch runner (3) and the right branch runner (4).
5. The die-casting gate structure of the complex central control bracket of magnesium-aluminum alloy according to claim 4 is characterized by: The widths of the left gate (6) and the right gate (7) are respectively greater than the widths of the left branch runner (3) and the right branch runner (4).
6. The die-casting gate structure of the complex central control bracket of magnesium-aluminum alloy according to claim 1 is characterized by: A plurality of second slag bags (12) are formed on the front side of the central control bracket cavity (5), and the second slag bags (12) are distributed between adjacent left gates (6), adjacent right gates (7), and between the left gate (6) and the right gate (7).
7. The die-casting gate structure of the complex central control bracket of magnesium-aluminum alloy according to claim 1 is characterized by: The thickness of the left branch runner (3) and the right branch runner (4) on the central control bracket cavity (5) gradually decreases from left to right.