Direct impact and air entrapment preventing synchronous feeding and pouring device for aluminum alloy die casting

Abstract

The utility model relates to the field of aluminum alloy die-casting pouring, and discloses an anti-direct-impact and anti-air-entrapment synchronous feeding pouring device for aluminum alloy die-casting, the tail end of a main runner inclines towards the left side and the right side to form a second transverse runner and a first transverse runner, and the tail end of the first transverse runner and the tail end of the second transverse runner are provided with a first branch runner and a second branch runner respectively; a first branch flow channel and a second branch flow channel are connected to the upper portion of the first transverse flow channel and the upper portion of the second transverse flow channel in a split-flow mode, the ends, away from the first transverse flow channel and the second transverse flow channel, of the first branch flow channel and the second branch flow channel are connected with a confluence channel, and a third split-flow channel is arranged at the tail end of the confluence channel. The first branch flow channel and the second branch flow channel are connected to the first transverse flow channel and the second transverse flow channel respectively and form a third branch flow channel at the confluence island, meanwhile, through buffering of the buffering island, it can be avoided that molten metal collides to form mixed flow during confluence of the two flow channels, and then the problems of direct flushing and synchronous filling of the molten metal flow are solved.

Description

Technical Field

[0001] The utility model relates to the field of aluminum alloy die-casting and pouring, in particular to an anti-straight-impact and anti-air-entrainment synchronous feeding and pouring device for aluminum alloy die-casting. Background Art

[0002] There are many aluminum alloy die-castings in automobile parts. A reasonable pouring system needs to be designed to produce qualified die-castings. The pouring system consists of: gate, straight runner, cross runner, branch runner, inner gate, die casting, slag bag, and exhaust duct.

[0003] The order of the gating system is generally that the molten metal is fed from the gate to the direct runner, through the cross runner and then to the branch runner. However, in some special cases, affected by the product structure, the branch runner will face the direct runner, and the molten metal will flow directly to the branch runner without passing through the cross runner (such as Figure 4 As shown in the figure), the middle runner will feed faster and the two side runners will feed slower, which will cause the metal liquid to fill asynchronously, faster in the middle and slower on both sides, thus affecting the filling quality of the die casting. For the case where the direct current channel directly hits the runner, the runner is generally connected to the cross runner at an angle (as shown in the figure). Figure 5 As shown in the figure, although it can prevent the direct flow channel from directly impacting the diverter channel, it will cause the problem of asynchronous feeding on both sides, which is not the best solution. For this reason, we designed a synchronous feeding and pouring device for aluminum alloy die casting to prevent direct impact and air entrainment. Utility Model Content

[0004] In order to solve the technical problem that the direct flow channel directly hits the branch channel, resulting in faster feeding of the middle branch channel and slower feeding of the branch channels on both sides, resulting in asynchronous filling of molten metal, the utility model provides a synchronous feeding and pouring device for aluminum alloy die casting to prevent direct impact and air entrainment.

[0005] The utility model is implemented by the following technical scheme: a synchronous feeding pouring device for aluminum alloy die casting with anti-straight-impact and anti-air-entrainment, comprising a gate, a pouring system is arranged at the tail end of the gate, a die casting is connected to the end of the pouring system, and an overflow system is arranged at the rear side of the die casting;

[0006] The pouring system includes a main channel connected to the gate, and the tail end of the main channel is inclined to the left and right sides to form a cross runner 2 and a cross runner 1. The tail ends of the cross runner 1 and the cross runner 2 are respectively provided with a branch runner 1 and a branch runner 2, and the cross runner 1 and the cross runner 2 are connected to branch runner 1 and branch runner 2 at the upper part of the branch runner 1 and the cross runner 2. The ends of the branch runner 1 and the branch runner 2 away from the cross runner 1 and the cross runner 2 are connected to a confluence channel, and the tail end of the confluence channel is provided with a branch runner 3.

[0007] As a further improvement of the above scheme, the tail ends of the runner one, runner two and runner two are respectively provided with ingates one, ingates two and ingates three, and the ends of the ingates one, ingates two and ingates three away from the runner one, runner two and runner two are all connected to the die casting, and the molten metal flow can enter the die casting through ingates one, ingates two and ingates three.

[0008] As a further improvement of the above scheme, a buffer island is arranged in the confluence channel, and the buffer island is distributed in a triangular structure. The inner cavity of the confluence channel is divided by the buffer island to form a confluence island. The confluence island is connected with branch channel one and branch channel two. The molten metal flows through the buffering of the buffer island, which can avoid the collision of the molten metal to form a mixed flow when the two flow channels converge, thereby ensuring the problem of synchronous filling on both sides.

[0009] As a further improvement of the above scheme, the tail end of the main channel is designed with a conical structure, and the inner walls on the left and right sides of the tail end of the main channel are designed to be flush with the inner walls of cross channel one and cross channel two, respectively, so that the metal liquid flow can be diverted to the left and right sides along the inner wall, ensuring the same flow rate and flow rate.

[0010] As a further improvement of the above scheme, the branch channel 1, branch channel 1, cross channel 1 and branch channel 2, branch channel 2, cross channel 2 on the left and right sides are symmetrically designed to make the flow rate and flow rate the same, so that the gate 1, gate 2 and gate 3 can be fed synchronously.

[0011] As a further improvement of the above scheme, the overflow system includes a slag bag and an exhaust duct. Three slag bags are arranged at the rear end of the die casting, and the three slag bags correspond to inner gate one, inner gate two and inner gate three respectively. The tail end of each slag bag is connected to an exhaust duct for slag discharge and exhaust.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model sets two confluences into one flow channel, which is composed of an inner gate, a branch flow channel 1, a branch flow channel 2, a branch flow channel 3, a branch flow channel 1, a branch flow channel 2, a confluence island, and a buffer island. The branch flow channel 1 and the branch flow channel 2 are respectively connected to the cross flow channel 1 and the cross flow channel 2, and are combined into a branch flow channel 3 at the confluence island. At the same time, through the buffering of the buffer island, it can be avoided that the metal liquid collides with each other to form a mixed flow when the two flow channels converge, thereby solving the problem of direct rushing of the metal liquid flow and synchronous filling.

[0014] By setting up two-in-one flow channels, the two branch flow channels are merged into one branch flow channel, and a buffer island is designed at the confluence to prevent the collision of metal liquid flows. At the same time, the cross-sectional area and angle of the branch flow channel can be adjusted to ensure that the "two-in-one flow channel" and other "conventional flow channels" fill the workpiece synchronously. It is also suitable for the casting system of various die-casting parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the overall structure of a synchronous feeding and pouring device for preventing direct impact and air entrainment for aluminum alloy die casting provided by the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the middle pouring system;

[0017] Figure 3 for Figure 1 Schematic diagram of the metal liquid flow diversion;

[0018] Figure 4 It is a schematic diagram of metal liquid flow diversion in the prior art where the diverter channel faces the direct flow channel;

[0019] Figure 5 It is a schematic diagram of the metal liquid flow diversion in which the diversion channel is obliquely connected to the cross-flow channel in the prior art.

[0020] Description of main symbols:

[0021] 1. Gate; 2. Main channel; 3. Cross runner 1; 31. Cross runner 2; 4. Branch runner 1; 41. Branch runner 2; 42. Branch runner 3; 5. Die casting; 6. Overflow system; 61. Slag bag; 62. Exhaust channel; 7. Ingate 1; 71. Ingate 2; 72. Ingate 3; 8. Converging channel; 81. Converging island; 82. Buffer island. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0023] Example:

[0024] Please combine Figure 1-Figure 3 The present embodiment is a synchronous feeding pouring device for aluminum alloy die casting with anti-straight impact and anti-air entrainment, comprising a gate 1, a pouring system is arranged at the tail end of the gate 1, a die casting 5 is connected to the end of the pouring system, and an overflow system 6 is arranged at the rear side of the die casting 5;

[0025] The pouring system includes a main channel 2 connected to the gate 1, and the tail end of the main channel 2 is inclined to the left and right sides to form a cross runner 2 31 and a cross runner 1 3. The tail ends of the cross runner 1 3 and the cross runner 2 31 are respectively provided with a branch channel 1 4 and a branch channel 2 41, and the cross runner 1 3 and the cross runner 2 31 are connected to the branch channel 1 and the branch channel 2 at the upper part, and the branch channel 1 and the branch channel 2 are connected to the end away from the cross runner 1 3 and the cross runner 2 31 with a confluence channel 8, and the tail end of the confluence channel 8 is provided with a branch channel 3 42.

[0026] The tail ends of the runner 1 4 , runner 2 41 and runner 2 41 are respectively provided with an ingate 1 7 , an ingate 2 71 and an ingate 3 72 , and the ends of the ingate 1 7 , the ingate 2 71 and the ingate 3 72 away from the runner 1 4 , runner 2 41 and runner 2 41 are all connected to the die casting 5 , and the molten metal flow can enter the die casting 5 through the ingate 1 7 , the ingate 2 71 and the ingate 3 72 .

[0027] A buffer island 82 is provided in the confluence channel 8. The buffer island 82 is distributed in a triangular structure, and the inner cavity of the confluence channel 8 is divided by the buffer island 82 to form a confluence island 81. The confluence island 81 is connected with the branch channel 1 and the branch channel 2. The molten metal flows through the buffer of the buffer island 82, which can avoid the collision of the molten metal to form a mixed flow when the two flow channels converge, thereby ensuring the problem of synchronous filling on both sides.

[0028] The tail end of the main channel 2 is designed with a conical structure, and the inner walls on the left and right sides of the tail end of the main channel 2 are designed to be flush with the inner walls of the cross channel 1 3 and the cross channel 2 31 respectively, so that the metal liquid flow can be diverted to the left and right sides along the inner wall, ensuring the same flow rate and flow rate.

[0029] The branch channel 1 4, branch channel 1, cross channel 1 3 and the branch channel 2 41, branch channel 2, cross channel 2 31 on the left and right sides are designed symmetrically to make the flow velocity and flow rate the same, so that the gate 1 7, gate 2 71 and gate 3 72 can be fed synchronously.

[0030] The overflow system 6 includes a slag bag 61 and an exhaust channel 62. Three slag bags 61 are arranged at the rear end of the die casting 5, and the three slag bags 61 correspond to the inner gate 7, the inner gate 71 and the inner gate 72 respectively. The tail end of each slag bag 61 is connected to an exhaust channel 62 for slag discharge and exhaust.

[0031] The implementation principle of the anti-straight-impact and anti-air-entrainment synchronous feeding pouring device for aluminum alloy die casting in the embodiment of the present application is as follows: the metal liquid flow enters from the gate 1 and starts to be filled, L0 is split into L1 / L2 and enters the cross runner 2 31 and the cross runner 1 3 respectively, L1 in the cross runner 2 31 is split again into L11 / L12, wherein L12 enters the branch runner 2, L11 enters the branch runner 2 41, L2 in the cross runner 1 3 is split into L21 / L22, wherein L22 enters the branch runner 1, L21 enters the branch runner 1 4, and L12 / L22 converge to the branch runner 3 42 through the confluence island 81 to form L31, and the metal liquid flows L11, L21, and L31 synchronously enter the die casting 5 and fill the workpiece in parallel;

[0032] By setting up two converging one runner, it is composed of an inner gate, a branch runner 1 4, a branch runner 2 41, a branch runner 3 42, a branch runner 1, a branch runner 2, a converging island 81, and a buffer island 82. The branch runner 1 and the branch runner 2 are respectively connected to the cross runner 1 3 and the cross runner 2 31, and merge into a branch runner 3 42 at the converging island 81. At the same time, through the buffering of the buffer island 82, it can be avoided that the metal liquids collide with each other to form mixed flow when the two runners converge, thereby solving the problem of direct metal liquid flow and synchronous filling.

[0033] By setting up two confluence channels, the two branch channels are merged into one branch channel, and a buffer island 82 is designed at the confluence to prevent the metal liquid flow from colliding. At the same time, the cross-sectional area and angle of the branch channel can be adjusted to ensure that the "two-in-one channel" and other "conventional channels" are synchronously filled with the workpiece, and it is also suitable for the casting system of various die-casting parts 5.

[0034] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A synchronous feeding pouring device for aluminum alloy die casting with anti-straight-impact and anti-air entrainment, comprising a pouring gate (1), characterized in that: A pouring system is provided at the tail end of the gate (1), a die casting (5) is connected to the end of the pouring system, and an overflow system (6) is provided at the rear side of the die casting (5); The pouring system comprises a main flow channel (2) connected to a gate (1); the tail end of the main flow channel (2) is inclined toward the left and right sides to form a second cross flow channel (31) and a first cross flow channel (3); the tail ends of the first cross flow channel (3) and the second cross flow channel (31) are respectively provided with a first branch flow channel (4) and a second branch flow channel (41); and the top of the first cross flow channel (3) and the second cross flow channel (31) is connected to a first branch flow channel and a second branch flow channel; the ends of the first branch flow channel and the second branch flow channel away from the first cross flow channel (3) and the second cross flow channel (31) are connected to a converging channel (8); and the tail end of the converging channel (8) is provided with a third branch flow channel (42).

2. The anti-straight-impact and anti-air-entrainment synchronous feeding pouring device for aluminum alloy die casting according to claim 1, characterized in that: The tail ends of the runner 1 (4), runner 2 (41) and runner 2 (41) are respectively provided with an inner gate 1 (7), inner gate 2 (71) and inner gate 3 (72), and the inner gate 1 (7), inner gate 2 (71) and inner gate 3 (72) are far away from the runner 1 (4), runner 2 (41) and one end of the runner 2 (41) are connected to the die casting (5).

3. The anti-straight-impact and anti-air-entrainment synchronous feeding pouring device for aluminum alloy die casting according to claim 1, characterized in that: A buffer island (82) is provided in the confluence channel (8), the buffer island (82) is distributed in a triangular structure, and the inner cavity of the confluence channel (8) is divided by the buffer island (82) to form a confluence island (81), and the confluence island (81) is connected to the branch channel 1 and the branch channel 2.

4. The anti-straight-impact and anti-air-entrainment synchronous feeding pouring device for aluminum alloy die casting according to claim 1, characterized in that: The tail end of the main flow channel (2) is designed to be conical in structure, and the inner walls on the left and right sides of the tail end of the main flow channel (2) are respectively designed to be flush with the inner walls of the first cross flow channel (3) and the second cross flow channel (31).

5. The anti-straight-impact and anti-air-entrainment synchronous feeding pouring device for aluminum alloy die casting according to claim 1, characterized in that: The branch channel 1 (4), branch channel 1, and cross channel 1 (3) on the left and right sides are symmetrically designed with the branch channel 2 (41), branch channel 2, and cross channel 2 (31).

6. The anti-straight-impact and anti-air-entrainment synchronous feeding pouring device for aluminum alloy die casting as claimed in claim 1, characterized in that: The overflow system (6) comprises a slag bag (61) and an exhaust channel (62). Three slag bags (61) are arranged at the rear end of the die casting (5), and the three slag bags (61) respectively correspond to the first ingates (7), the second ingates (71) and the third ingates (72). The rear end of each slag bag (61) is connected to an exhaust channel (62).

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