Pouring and discharging structure of automobile dashboard beam assembly

Abstract

The utility model relates to a pouring and discharging structure of an automobile instrument panel cross beam assembly, which comprises a charging barrel, a left main pouring gate and a right main pouring gate are respectively arranged on the charging barrel, a plurality of branch pouring gates are respectively arranged on the main pouring gates, a transverse strip-shaped cross beam cavity is arranged behind the charging barrel, a plurality of pouring gates are respectively formed on the front side edge of the cross beam cavity, and the pouring gates are communicated with the branch pouring gates. The tail end of the branch pouring gate is communicated with the pouring gate; a core mold is formed in the middle of the rear side of the cross beam cavity, and grooves extending backwards are formed in the positions, on the two sides of the core mold, of the rear side edge of the cross beam cavity. The two ends and the rear side edge of the cross beam cavity and the rear end and the two sides of the groove are connected with a plurality of first cinder ladles respectively, exhaust channels are connected to the first cinder ladles, and the tail ends of the exhaust channels are connected to the wavy exhaust groove. According to the die-casting structure, a multi-pouring-gate, multi-pouring-gate and multi-cinder-ladle pouring and discharging structure is designed according to the shape of the automobile instrument panel cross beam assembly, meanwhile, an exhaust structure with the sine-shaped exhaust groove channels and the wave-shaped exhaust grooves combined is designed according to the middle of the cross beam assembly, and effective exhaust can be achieved.

Description

Technical field:

[0001] The utility model relates to the technical field of die-casting molds, and more specifically to a pouring structure of a crossbeam assembly of an automobile instrument panel. 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. However, for a complex die-casting, a complex die-casting cavity is required, such as an instrument panel cross beam assembly on a car. The instrument panel cross beam assembly is a long strip, the middle of which protrudes backward and is provided with a rectangular slot, and the two sides of the slot are The protruding part on the side is also provided with a bracket extending backward. The structure of the dashboard crossbeam assembly is very complicated. Die-casting cannot be achieved by using a single runner and a single gate structure. For the die-casting of the dashboard crossbeam assembly, some people have proposed to use a multi-runner, multi-gate, and multi-slag bag structure to achieve die-casting. Therefore, it is necessary to design a discharge pouring structure. When designing a multi-gate and multi-slag bag structure, it is necessary to design a corresponding exhaust groove structure. The exhaust groove can quickly discharge the air in the die-casting cavity, thereby avoiding 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 pouring structure for an automobile instrument panel crossbeam assembly, which designs a pouring structure with multiple runners, multiple gates and multiple slag bags according to the shape and structure of the automobile instrument panel crossbeam assembly, and at the same time designs an exhaust structure combining a sinusoidal exhaust groove and a wave-shaped exhaust groove for the middle part of the crossbeam assembly, thereby achieving effective exhaust.

[0004] A pouring structure for a cross beam assembly of an automobile instrument panel, comprising a barrel, a left main runner and a right main runner are respectively provided on the barrel, a plurality of branch runners are respectively provided on the main runners, a transverse strip cross beam cavity is provided at the rear of the barrel, a plurality of gates are respectively formed on the front side of the cross beam cavity, and the ends of the branch runners are connected to the gates; a rectangular core mold is formed in the middle of the rear side of the cross beam cavity, and strip-shaped grooves extending backward are formed on the rear sides of the cross beam cavity on both sides of the core mold;

[0005] The two ends, the rear side and the rear end and both sides of the beam cavity are respectively connected with a plurality of first slag bags, the first slag bags are connected with exhaust channels, and the ends of the exhaust channels are connected with the wave-shaped exhaust grooves;

[0006] A longitudinal and sinusoidal exhaust channel is arranged between the grooves, and the front end of the exhaust channel is connected to the first slag bag.

[0007] Preferably, the exhaust channel consists of a sinusoidal main channel at the front and a linear secondary channel at the rear, the main channel is provided with multiple peaks and valleys, the number of peaks on the main channel is between 50° and 60°; the angle between the channels on both sides of the peak is 50° to 60°.

[0008] Preferably, the exhaust groove comprises an upper exhaust cavity and a lower exhaust cavity which are respectively arranged on the movable die and the static die of the die-casting mold and are opposite to each other in upper and lower directions; a plurality of arc-shaped upper wave crests are formed on the upper exhaust cavity of the movable die of the die-casting mold, and arc-shaped upper wave troughs are arranged between adjacent upper wave crests; an arc-shaped lower wave crest is formed in the lower exhaust cavity of the static die of the die-casting mold, the lower wave crest is inserted in the upper wave trough, an arc-shaped lower wave trough is arranged between adjacent lower wave crests, and the upper wave crest is inserted in the lower wave trough; the upper wave crest, upper wave trough, lower wave crest and lower wave trough constitute a wave-shaped air groove;

[0009] The upper exhaust cavity of the movable mold of the die-casting mold is formed with two air inlets connected to the exhaust channel, and cylindrical air-blocking bosses are respectively formed in the upper exhaust cavity at the air inlets; a partition groove perpendicular to the upper wave crest is formed in the middle of the upper wave crest near the air inlet side in the upper exhaust cavity, and circular partition bosses are formed on the upper wave crests on both sides of the partition groove.

[0010] Preferably, a second slag bag connected to the cross beam cavity is formed at the rear of the core mold inside the cross beam cavity.

[0011] Preferably, a plurality of third slag bags are connected to the front side of the beam cavity between the gates.

[0012] Preferably, a plurality of gates with similar spacing are provided on the right side of the beam cavity, and the ends of the branch runners on the right side of the barrel are respectively provided with forks, and the ends of the forks are respectively connected to the gates with similar spacing.

[0013] The beneficial effects of the utility model are:

[0014] This die-casting structure is designed with a casting structure with multiple runners, multiple gates and multiple slag bags according to the shape structure of the automobile dashboard crossbeam assembly. At the same time, an exhaust structure combining sinusoidal exhaust channels and wave-shaped exhaust channels is designed for the middle part of the crossbeam assembly to achieve effective exhaust. Description of the drawings:

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the exhaust groove on the movable mold side of the die-casting mold of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the internal exhaust channel of the utility model.

[0018] In the figure: 1. barrel; 2. main runner; 3. branch runner; 4. beam cavity; 5. gate; 7. first slag bag; 8. exhaust groove; 9. exhaust groove; 10. exhaust channel; 11. second slag bag; 12. third slag bag. Specific implementation method:

[0019] Example: See Figure 1 , 2 As shown, a pouring arrangement structure of a cross beam assembly of an automobile instrument panel comprises a barrel 1, on which two main runners 2 are respectively provided on the barrel 1, and a plurality of branch runners 3 are respectively provided on the main runners 2. A transverse strip-shaped cross beam cavity 4 is provided at the rear of the barrel 1, and a plurality of gates 5 are respectively formed on the front side of the cross beam cavity 4, and the ends of the branch runners 3 are connected to the gates 5; a rectangular core mold 41 is formed in the middle of the rear side of the cross beam cavity 4, and strip-shaped grooves 42 extending backward are formed on the rear sides of the cross beam cavity 4 on both sides of the core mold 41;

[0020] The two ends, the rear side and the rear end and both sides of the cross beam cavity 4 are respectively connected with a plurality of first slag bags 7, the first slag bags 7 are connected with exhaust channels 10, and the ends of the exhaust channels 10 are connected with the wave-shaped exhaust grooves 8;

[0021] A longitudinal and sinusoidal exhaust channel 9 is provided between the profile grooves 42 , and a front end of the exhaust channel 9 is connected to the first slag bag 7 .

[0022] The exhaust channel 9 is composed of a sinusoidal main channel 91 at the front and a linear secondary channel 92 at the rear. The main channel 91 is provided with multiple peaks and valleys, and the number of peaks on the main channel 91 is between 8 and 13. The angle between the channels on both sides of the peak is 50° to 55°.

[0023] The exhaust groove 8 comprises an upper exhaust cavity 81 and a lower exhaust cavity which are respectively arranged on the movable die and the static die of the die-casting mold and are opposite to each other in upper and lower directions; a plurality of arc-shaped upper wave crests 82 are formed on the upper exhaust cavity 81 of the movable die of the die-casting mold, and an arc-shaped upper wave trough 83 is arranged between adjacent upper wave crests 82; an arc-shaped lower wave crest is formed in the lower exhaust cavity of the static die of the die-casting mold, and the lower wave crest is inserted in the upper wave trough 83, and an arc-shaped lower wave trough is arranged between adjacent lower wave crests, and the upper wave crest 82 is inserted in the lower wave trough; the upper wave crest 82, the upper wave trough 83, the lower wave crest and the lower wave trough constitute a wave-shaped air groove;

[0024] The upper exhaust cavity 81 of the movable mold of the die-casting mold is formed with two air inlets 84 connected to the exhaust channel 10, and cylindrical air-blocking bosses 85 are respectively formed in the upper exhaust cavity 81 at the air inlets 84; a partition groove 86 perpendicular to the upper wave crest 82 is formed in the middle of the upper wave crest 82 near the air inlet 84 in the upper exhaust cavity 81, and circular partition bosses 87 are formed on the upper wave crests 82 on both sides of the partition groove 86.

[0025] A second slag bag 11 communicating with the cross beam cavity 4 is formed at the rear of the core mold 41 inside the cross beam cavity 4 .

[0026] A plurality of third slag ladles 12 are connected to the front side of the beam cavity 4 between the pouring gates 5 .

[0027] The right side of the crossbeam cavity 4 is provided with a plurality of gates 5 with similar spacing. Because some parts of the crossbeam cavity 4 have a complex structure, in order to fully fill the structure with magnesium liquid, a plurality of gates 5 with similar spacing are required. However, because the gates 5 are too close, there is not enough space to set multiple branch runners 3. Therefore, the ends of the branch runners 3 on the right side of the barrel 1 are respectively provided with forks 31, and the ends of the forks 31 are respectively connected to the gates 5 with similar spacing.

[0028] Working principle: The utility model is a pouring structure for the cross beam assembly of the automobile instrument panel. The pouring structure is provided with a reasonably distributed main runner 2, a sub-runner 3 and a gate 5 structure in the cross beam cavity 4, and the cross beam cavity 4 is designed to be three die-casting areas a, b and c; it effectively ensures that the speed of the alloy liquid passing through the gate and the amount of the alloy liquid flowing into the die-casting area of ​​the instrument panel cross beam assembly are sufficient, avoids the rapid cooling of the alloy liquid, and increases the density of the product;

[0029] At the same time, in view of the structure of the complex part of the beam cavity 4, such as the middle part of the rear side of the beam cavity 4, a second slag bag 11, multiple first slag bags 7 and exhaust grooves 8 are added, and a sinusoidal exhaust channel 9 is also added to achieve effective exhaust and slag removal, so that the waste slag and air generated during rapid die-casting can be discharged smoothly, thereby improving product quality; at the same time, the air-blocking boss 85 in the exhaust groove 8 on the side of the movable mold can reduce the amount of magnesium liquid (magnesium-aluminum alloy liquid) entering the exhaust groove 8, and the risk of flying out of the exhaust groove 8 effectively ensures the safety of production equipment and production personnel.

[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 pouring structure for a cross beam assembly of an automobile instrument panel, comprising a barrel (1), the barrel (1) being provided with two main runners (2) on the left and right, the main runners (2) being provided with a plurality of branch runners (3), a transverse strip-shaped cross beam cavity (4) being provided at the rear of the barrel (1), characterized in that: A plurality of gates (5) are respectively formed on the front side of the beam cavity (4), and the ends of the branch runners (3) are connected to the gates (5); a rectangular core mold (41) is formed in the middle of the rear side of the beam cavity (4), and strip-shaped grooves (42) extending backward are formed on the rear sides of the beam cavity (4) on both sides of the core mold (41); A plurality of first slag bags (7) are respectively connected to the two ends, the rear side edge and the rear end and both sides of the cross beam cavity (4), the first slag bag (7) is connected to an exhaust channel (10), and the end of the exhaust channel (10) is connected to the wave-shaped exhaust groove (8); A longitudinal and sinusoidal exhaust channel (9) is provided between the profile grooves (42), and the front end of the exhaust channel (9) is connected to the first slag bag (7).

2. The pouring structure of the automobile instrument panel cross beam assembly according to claim 1, characterized in that: The exhaust channel (9) is composed of a front sinusoidal main channel (91) and a rear linear secondary channel (92); the main channel (91) is provided with a plurality of peaks and valleys, and the number of peaks on the main channel (91) is between 8 and 13; the angle between the channels on both sides of the peak is 50° to 55°.

3. The pouring structure of the automobile instrument panel cross beam assembly according to claim 1, characterized in that: The exhaust groove (8) comprises an upper exhaust cavity (81) and a lower exhaust cavity which are respectively arranged on the movable die and the static die of the die-casting mold and are opposite to each other in upper and lower directions; a plurality of arc-shaped upper wave crests (82) are formed on the upper exhaust cavity (81) of the movable die of the die-casting mold, and an arc-shaped upper wave trough (83) is arranged between adjacent upper wave crests (82); an arc-shaped lower wave crest is formed in the lower exhaust cavity of the static die of the die-casting mold, the lower wave crest is inserted in the upper wave trough (83), an arc-shaped lower wave trough is arranged between adjacent lower wave crests, and the upper wave crest (82) is inserted in the lower wave trough; the upper wave crest (82), the upper wave trough (83), the lower wave crest and the lower wave trough constitute a wave-shaped air groove; The upper exhaust cavity (81) of the movable die of the die-casting mold is formed with two air inlets (84) connected to the exhaust channel (10), and cylindrical air blocking bosses (85) are respectively formed in the upper exhaust cavity (81) at the air inlets (84); a partition groove (86) perpendicular to the upper wave crest (82) is formed in the middle of the upper wave crest (82) on one side close to the air inlet (84) in the upper exhaust cavity (81), and circular partition bosses (87) are formed on the upper wave crest (82) on both sides of the partition groove (86).

4. The pouring structure of the automobile instrument panel crossbeam assembly according to claim 1, characterized in that: A second slag bag (11) connected to the cross beam cavity (4) is formed at the rear of the core mold (41) inside the cross beam cavity (4).

5. The pouring structure of the automobile instrument panel cross beam assembly according to claim 1, characterized in that: A plurality of third slag ladles (12) are connected to the front side of the crossbeam cavity (4) between the pouring gates (5).

6. The pouring structure of the automobile instrument panel cross beam assembly according to claim 1, characterized in that: The right side of the crossbeam cavity (4) is provided with a plurality of gates (5) with similar spacings, and the ends of the branch runners (3) on the right side of the barrel (1) are respectively provided with forks (31), and the ends of the forks (31) are respectively connected to the gates (5) with similar spacings.

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