Die casting equipment for aluminum alloy shell

Abstract

The invention discloses die-casting equipment for an aluminum alloy shell, and relates to the technical field of die-casting machines. A movable die and a fixed die are driven to be attached through a die closing mechanism, meanwhile, an air exhaust mechanism on the fixed die is started to exhaust air in the dies, and then aluminum alloy metal liquid is pressed into the dies through an injection mechanism; in the process that the aluminum alloy molten metal flows into the mold, the cam is driven by the injection mechanism to rotate, so that the cam drives the vibration block to move, the vibration block periodically knocks the fixed mold, vibration is generated, flowing of the aluminum alloy molten metal is promoted, and the aluminum alloy molten metal can better flow into the thin wall or deep cavity or other areas of the mold; and bubbles in the mold float upwards, so that the bubbles are discharged from the air exhaust mechanism, and the yield of the shell is improved.

Description

Technical Field

[0001] This invention relates to the field of die-casting machine technology, specifically to a die-casting device for aluminum alloy housings. Background Technology

[0002] Aluminum alloy is an alloy material with aluminum as the main component. It is a non-ferrous metal with excellent properties such as light weight, high strength and corrosion resistance. It is widely used in aerospace, automobile manufacturing, construction engineering and other fields.

[0003] Die casting equipment is a machine used for pressure casting. In the die casting process of aluminum alloy shells, two molds are usually closed, and molten metal is injected into the molds under pressure to cool and form the shell. After demolding, the aluminum alloy shell is obtained. However, during the casting process, air may be present in the mold cavity, or the molten metal may have poor fluidity, causing the molten metal to flow in areas such as thin walls and deep cavities of the mold. As a result, the molten metal may not be able to fill the cavity completely, which may lead to defects such as porosity or incomplete filling in the cast aluminum alloy shell, thus affecting the quality of the product. Summary of the Invention

[0004] The purpose of this invention is to solve the problem in the prior art that air is easily present in the mold cavity and the molten metal has poor fluidity, resulting in defects such as porosity or incomplete filling in the cast aluminum alloy shell. Therefore, this invention proposes a die-casting equipment for aluminum alloy shells.

[0005] To address the above problems, the present invention provides the following technical solution: A die-casting equipment for aluminum alloy housings includes a mold-closing mechanism, a moving mold and a fixed mold, the moving mold and the mold-closing mechanism being connected, an ejection mechanism on one side of the moving mold, an injection mechanism on one side of the fixed mold, an air extraction mechanism on the fixed mold, and a vibration mechanism on the fixed mold. The mold has an installation cavity; The vibration mechanism includes a cam, a vibrating block, and an adjustment mechanism; The adjusting mechanism includes an adjusting block; The vibratory block is located inside the mounting cavity. The cam is used to drive the vibratory block to vibrate against the fixed mold to promote the flow of molten aluminum alloy. The adjusting block is used to adjust the vibration intensity of the vibratory block.

[0006] The mold-closing mechanism, mounted on the frame, drives the moving mold towards the fixed mold via its hydraulic cylinder. This allows the moving and fixed molds to fit together. Simultaneously, the evacuation mechanism on the fixed mold is activated to remove air from the interior. Aluminum alloy molten metal is then injected into the injection mechanism by an operator or robotic arm. The injection mechanism forces the molten aluminum alloy into the mold. As the molten aluminum alloy flows into the mold, the injection mechanism drives a cam to rotate, which in turn drives a vibrating block to move. This vibrating block periodically strikes the fixed mold, generating vibration. The intensity of the vibration is adjusted by a regulating block, promoting the flow of the molten aluminum alloy. This allows the molten aluminum alloy to better flow into thin-walled or deep cavities within the mold, causing air bubbles to rise and be expelled through the evacuation mechanism. This prevents air from remaining in the mold, which could lead to porosity in the formed shell and improves the yield rate of the shell.

[0007] Furthermore, the adjustment mechanism includes a fixed cylinder and two sliders, with an adjustment groove inside the fixed cylinder; The cross-section of the regulating groove is convex. The cross-section of the vibrating block is T-shaped; The mold has a control groove inside; The adjustment groove and the vibration block cooperate, with two sliders located in the adjustment groove and the control groove respectively. A buffer spring is provided between the vibration block and the slider, and the control groove is equipped with an adjustment block. The regulating block has an outer layer and an inner layer. The coefficient of thermal expansion of the outer layer material is smaller than that of the inner layer material. The outer layer and the regulating block are in contact.

[0008] A vibrating block that can slide along an adjusting groove is installed on a fixed cylinder mounted on a movable plate. The vibrating block is T-shaped in cross-section, and the adjusting groove has a matching convex cross-section. This minimizes the sliding space on the side of the adjusting groove closest to the inner wall of the mounting cavity, creating a limiting effect and preventing the vibrating block from sliding out of the groove. A slider is installed in the adjusting groove on one side of the vibrating block closest to the inner wall of the mounting cavity. A buffer spring is placed between the vibrating block and the slider. A control groove is provided in the fixed mold, connecting the control groove and the adjusting groove, and is filled with liquid. An adjusting block is placed on one side of the slider in the control groove, with one end abutting against the slider and the other end fixed by a heat-conducting metal block. In the mounting cavity, the initial state of the adjusting block provides pressure to the liquid in the tank, thereby initially compressing the buffer spring. This ensures that the vibrating block can only slide along the inside of the adjusting tank when it impacts. The adjusting block has an outer layer and an inner layer. By making the outer layer and the inner layer with different coefficients of thermal expansion, the temperature of the aluminum alloy liquid is transferred to the heat-conducting metal block through the fixed mold, and then to the adjusting block through the heat-conducting metal block. This causes the adjusting block to bend according to the temperature of the aluminum alloy liquid, which in turn pushes the buffer spring to compress or release its elasticity. This adjusts the intensity of the vibration according to the temperature of the aluminum alloy liquid, allowing the aluminum alloy liquid to flow better into the thin-walled or deep cavity areas of the mold.

[0009] Furthermore, the vibration mechanism also includes a rotating shaft, a cam located on the rotating shaft, a movable plate on one side of the cam, and a transmission mechanism on the rotating shaft; The mold has a sliding groove inside; The movable plate and the sliding groove are slidably connected, the rotating shaft and the fixed mold are rotatably connected, a return spring is provided between the movable plate and the inner wall of the mounting cavity, and the fixed cylinder is located on the movable plate.

[0010] By mounting a cam on a rotating shaft and setting up a transmission mechanism, the power from the injection mechanism is transmitted to the rotating shaft through the transmission mechanism, causing the rotating shaft to rotate. This rotating shaft drives the cam to rotate, which in turn drives the moving plate to move linearly along the sliding groove, moving the moving plate toward the product. The fixed cylinder moves accordingly, causing the vibrating block on the fixed cylinder to collide with the inner wall of the mounting cavity. A return spring is provided between the moving plate and the inner wall of the mounting cavity, allowing the moving plate to quickly return to its original position. In conjunction with the rotation of the cam, the moving plate moves back and forth periodically, causing the moving plate to drive the vibrating block to periodically strike the fixed mold, thereby generating vibration. The intensity of the striking is adjusted according to the temperature of the molten aluminum alloy by an adjustment mechanism, thus controlling the intensity of the vibration.

[0011] Furthermore, the transmission mechanism includes a rack, a driven gear on the rotating shaft, and a driving gear on one side of the driven gear, with the driving gear meshing with the driven gear and the rack respectively; The injection mechanism includes an injection punch; The fixed mold is equipped with a movable groove; The rack and the injection punch are slidably connected, and the rack and the movable slot are movably connected.

[0012] By installing a rack on the injection punch, the rack moves with the injection punch during the aluminum alloy metal hydraulic injection stage, bringing it closer to the fixed mold. The driving gear meshes with both the driven gear and the rack, causing the rack to rotate and thus the driven gear to rotate. The driven gear is mounted on a rotating shaft via a keyway, further rotating the shaft. This drives the vibration mechanism during injection. Subsequently, the upper part of the rack slides into the inclined surface of the movable groove. Simultaneously, as the injection punch moves upward, the outer corner of the inclined surface is higher than the inner corner, allowing the rack to slide into the upper part of the movable groove and disengage from the driving gear. When the injection punch resets, the rack slides into the inclined surface on the other side of the movable groove. Simultaneously, as the injection punch moves downward, the outer corner of the other inclined surface is lower than the inner corner, allowing the rack to slide into the lower part of the movable groove, preventing vibration during injection punch reset.

[0013] Furthermore, the injection mechanism includes an injection hydraulic cylinder, an injection punch located at the output end of the injection hydraulic cylinder, and a material cylinder provided on one side of the injection punch.

[0014] By adding molten aluminum alloy through the feed port on the barrel, the accumulator provides the pressure required for the injection process to the injection hydraulic cylinder. The output end of the injection hydraulic cylinder is fastened to the injection punch, which drives the injection punch to move, thereby forcing the aluminum alloy in the barrel into the mold cavity.

[0015] Furthermore, the pumping mechanism includes a sleeve and a vacuum pump, with one side of the sleeve connected to a vacuum pump pipe; The mold has a cavity inside; The other side of the sleeve is connected to the cavity.

[0016] A sleeve is installed above the cavity of the fixed mold, and a flow channel is set between the cavity and the sleeve to connect them. A vacuum pump is connected to the other side of the sleeve. After the moving mold and the fixed mold are put into contact, the vacuum pump is started to evacuate the cavity and remove the air inside the cavity.

[0017] Furthermore, the suction mechanism also includes a push block, a baffle is provided on the sleeve, and a limit switch is provided on one side of the baffle; The push block is located on the moving mold; When the mold is closed: the moving mold drives the push block to move the baffle.

[0018] By installing a pusher block on the moving mold, the moving mold moves the pusher block when it closes, causing the pusher block to push the baffle, so that the baffle no longer blocks the sleeve. Then the outside of the baffle touches the limit switch, which in turn causes the control system to start the vacuum pump.

[0019] Furthermore, the ejection mechanism includes an ejection hydraulic cylinder, the output end of which is provided with a mounting plate, and the mounting plate is provided with several ejection rods.

[0020] After the aluminum alloy shell is cooled and formed, the moving mold is driven away from the fixed mold by the mold closing mechanism. At the same time, the ejector hydraulic cylinder extends, which in turn drives the mounting plate on its output end to move. This causes several ejector rods to push the aluminum alloy shell inside the mold. Then the ejector hydraulic cylinder retracts, causing the mounting plate to drive several ejector rods to reset, thereby causing the aluminum alloy shell to fall off, thus completing the demolding.

[0021] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting a cam and a vibrating block, the cam is driven to rotate by the injection punch of the injection mechanism. The vibrating block applies vibration to the mold while the molten metal fills the cavity, making it easier for the molten metal to break through the constraint of surface tension. This allows the molten metal to flow more easily into the thin-walled and deep cavities of the mold cavity. At the same time, it reduces the adhesion of air bubbles to the cavity, causing them to float up and be discharged. This reduces defects such as porosity or incomplete filling in the cast aluminum alloy shell, thereby improving the product yield.

[0022] 2. By setting an adjustment block, it can bend and deform according to the temperature of the molten metal, thereby changing the preload of the buffer spring between the vibrating block and the slider, realizing dynamic adjustment in the die-casting process, and making the vibration mechanism adapt to different working conditions of the die-casting equipment.

[0023] 3. By setting up a transmission mechanism, the injection mechanism drives the vibration mechanism to work, eliminating the need for an additional power source and reducing production costs. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the vibration mechanism of the present invention; Figure 4 yes Figure 3 A magnified view of part A; Figure 5 This is a schematic diagram of the adjustment mechanism of the present invention; Figure 6 yes Figure 5 A magnified view of part B; Figure 7 This is a schematic diagram of the structure of the movable groove of the present invention; Figure 8 This is a schematic diagram of the air extraction mechanism of the present invention; Figure 9 This is a schematic diagram showing the connection between the sleeve and the cavity of the present invention.

[0025] In the diagram: 1. Vibration mechanism; 11. Cam; 12. Vibrating block; 13. Rotating shaft; 14. Moving plate; 15. Transmission mechanism; 151. Rack; 152. Driven gear; 153. Driving gear; 16. Adjustment mechanism; 161. Fixed cylinder; 1611. Adjustment groove; 163. Sliding block; 164. Buffer spring; 165. Adjustment block; 1651. Outer layer; 1652. Inner layer; 17. Return spring; 2. Mold closing machine 3. Moving mold; 4. Fixed mold; 41. Mounting cavity; 42. Sliding groove; 43. Control groove; 44. Cavity; 45. Movable groove; 5. Ejection mechanism; 51. Ejection hydraulic cylinder; 52. Mounting plate; 53. Ejection rod; 6. Injection mechanism; 61. Injection hydraulic cylinder; 62. Injection punch; 63. Barrel; 7. Vacuuming mechanism; 71. Sleeve; 72. Vacuum pump; 73. Push block; 74. Baffle; 75. Limit switch. Detailed Implementation

[0026] The embodiments of the present invention will now be further described in conjunction with the accompanying drawings and examples.

[0027] Example: Figures 1-4 As shown, the present invention provides a technical solution: a die-casting equipment for aluminum alloy housings. The die-casting equipment includes a mold closing mechanism 2, a moving mold 3 and a fixed mold 4. The moving mold 3 is connected to the mold closing mechanism 2. An ejection mechanism 5 is provided on one side of the moving mold 3, an injection mechanism 6 is provided on one side of the fixed mold 4, an air extraction mechanism 7 is provided on the fixed mold 4, and a vibration mechanism 1 is provided on the fixed mold 4. The mold 4 has an installation cavity 41 inside; Vibration mechanism 1 includes cam 11, vibrating block 12 and adjustment mechanism 16; The adjusting mechanism 16 includes an adjusting block 165; Vibration block 12 is located in mounting cavity 41. Cam 11 is used to drive vibration block 12 to vibrate the fixed mold 4 to promote the flow of aluminum alloy molten metal. Adjustment block 165 is used to adjust the vibration intensity of vibration block 12.

[0028] The mold clamping mechanism 2, installed on the frame, drives the moving mold 3 to move towards the fixed mold 4 via its hydraulic cylinder, causing the moving mold 3 and the fixed mold 4 to fit together. Simultaneously, the suction mechanism 7 on the fixed mold 4 is activated to evacuate air from the inside of the mold. Aluminum alloy molten metal is added to the injection mechanism 6 by the operator or a robotic arm, and the injection mechanism 6 injects the aluminum alloy molten metal into the mold. During the flow of the aluminum alloy molten metal into the mold, the injection mechanism 6 drives the cam 11 to rotate, which in turn drives the vibrating block 12 to move. This causes the vibrating block 12 to periodically strike the fixed mold 4, generating vibration. The intensity of the vibration is adjusted by the adjusting block 165 of the adjusting mechanism 16, promoting the flow of the aluminum alloy molten metal. This allows the aluminum alloy molten metal to flow better into the thin-walled or deep cavity areas of the mold, and causes air bubbles in the mold to rise and be discharged from the suction mechanism 7. This prevents air from remaining in the mold, which could lead to pores in the shell after molding, thereby improving the yield rate of the shell.

[0029] like Figure 5 and Figure 6 As shown, the adjustment mechanism 16 includes a fixed cylinder 161 and two sliders 163, and the fixed cylinder 161 is provided with an adjustment groove 1611; The cross-section of the regulating groove 1611 is convex; The cross-section of the vibrating block 12 is T-shaped; The fixed mold 4 is provided with a control groove 43; The adjustment groove 1611 and the vibration block 12 are matched, and two sliders 163 are located in the adjustment groove 1611 and the control groove 43 respectively. A buffer spring 164 is provided between the vibration block 12 and the slider 163. The adjusting block 165 has an outer layer 1651 and an inner layer 1652. The coefficient of thermal expansion of the material of the outer layer 1651 is smaller than that of the material of the inner layer 1652. The outer layer 1651 and the adjusting block 165 are in contact.

[0030] A vibrating block 12, which can slide along the adjusting groove 1611, is installed on the fixed cylinder 161 of the movable plate 14. The vibrating block 12 is T-shaped in cross-section, and the adjusting groove 1611 is convex in cross-section to match it. This reduces the sliding space of the adjusting groove 1611 near the inner wall of the mounting cavity 41, thus creating a limit and preventing the vibrating block 12 from sliding out of the adjusting groove 1611. A slider 163 is installed in the adjusting groove 1611 near one side of the vibrating block 12. A buffer spring 164 is placed between the vibrating block 12 and the slider 163. A control groove 43 is provided in the fixed mold 4, connecting the control groove 43 and the adjusting groove 1611, and is filled with liquid. An adjusting block 165 is placed on one side of the slider 163 in the control groove 43, with one end of the adjusting block 165 abutting against the slider 163. The other end of 65 is fixed to the mounting cavity 41 by a heat-conducting metal block, so that the adjusting block 165 initially provides pressure to the liquid in the tank, thereby initially compressing the buffer spring 164, so that the vibrating block 12 can only slide along the inside of the adjusting groove 1611 when it impacts. The adjusting block 165 has an outer layer 1651 and an inner layer 1652. By making the outer layer 1651 and the inner layer 1652 into materials with different coefficients of thermal expansion, the temperature of the aluminum alloy liquid is transferred to the heat-conducting metal block through the fixed mold 4, and then to the adjusting block 165 through the heat-conducting metal block. This causes the adjusting block 165 to bend according to the temperature of the aluminum alloy liquid, thereby causing the adjusting block 165 to push the buffer spring 164 to compress or release the elastic force, and thus adjust the intensity of vibration according to the temperature of the aluminum alloy liquid, so that the aluminum alloy liquid can flow better into the thin wall or deep cavity area of ​​the mold.

[0031] like Figure 4 and Figure 5 As shown, the vibration mechanism 1 also includes a rotating shaft 13, a cam 11 located on the rotating shaft 13, a movable plate 14 on one side of the cam 11, and a transmission mechanism 15 on the rotating shaft 13; The fixed mold 4 is provided with a sliding groove 42; The movable plate 14 and the sliding groove 42 are slidably connected, the rotating shaft 13 and the fixed mold 4 are rotatably connected, a return spring 17 is provided between the movable plate 14 and the inner wall of the mounting cavity 41, and the fixed cylinder 161 is located on the movable plate 14.

[0032] By mounting the cam 11 on the rotating shaft 13 and setting a transmission mechanism 15, the power of the injection mechanism 6 is transmitted to the rotating shaft 13 through the transmission mechanism 15, causing the rotating shaft 13 to rotate. The rotating shaft 13 drives the cam 11 to rotate, thereby driving the moving plate 14 to move linearly along the sliding groove 42, moving the moving plate 14 towards the product direction, and causing the fixed cylinder 161 to move accordingly. This causes the vibrating block 12 on the fixed cylinder 161 to collide with the inner wall of the mounting cavity 41. A return spring 17 is provided between the moving plate 14 and the inner wall of the mounting cavity 41, allowing the moving plate 14 to quickly return to its original position. In conjunction with the rotation of the cam 11, the moving plate 14 moves back and forth periodically, causing the moving plate 14 to drive the vibrating block 12 to periodically strike the fixed mold 4, thereby generating vibration. The intensity of the striking is adjusted by the adjustment mechanism 16 according to the temperature of the aluminum alloy molten metal, thereby controlling the intensity of the vibration.

[0033] like Figure 4 and Figure 7 As shown, the transmission mechanism 15 includes a rack 151, a driven gear 152 is provided on the rotating shaft 13, and a driving gear 153 is provided on one side of the driven gear 152. The driving gear 153 meshes with the driven gear 152 and the rack 151 respectively. The injection mechanism 6 includes an injection punch 62; The fixed mold 4 is provided with a movable groove 45; The rack 151 and the injection punch 62 are slidably connected, and the rack 151 and the movable groove 45 are movably connected.

[0034] By mounting a rack 151 on the injection punch 62, during the aluminum alloy metal hydraulic injection stage, the injection punch 62 moves, causing the rack 151 to move with it. This brings the rack 151 closer to the fixed mold 4. The driving gear 153 meshes with both the driven gear 152 and the rack 151, causing the rack 151 to drive the driving gear 153 to rotate. This, in turn, causes the driven gear 152 to rotate. The driven gear 152 is mounted on the rotating shaft 13 via a keyway, thus driving the rotating shaft 13 to rotate. This, in turn, drives the vibration mechanism 1 to operate simultaneously with the injection. Subsequently, the upper part of rack 151 slides into the inclined surface of movable groove 45. At the same time, rack 151 moves upward as injection punch 62 moves upward. The outer corner of the inclined surface is higher than the inner corner, causing rack 151 to slide into the upper part of movable groove 45 and disengage rack 151 from drive gear 153. When injection punch 62 resets, rack 151 slides into the inclined surface on the other side of movable groove 45. At the same time, rack 151 moves downward as injection punch 62 moves downward. The outer corner of the inclined surface on the other side is lower than the inner corner, causing rack 151 to slide into the lower part of movable groove 45, thus avoiding vibration caused when injection punch 62 resets.

[0035] like Figure 2As shown, the injection mechanism 6 includes an injection hydraulic cylinder 61, an injection punch 62 located at the output end of the injection hydraulic cylinder 61, and a material cylinder 63 provided on one side of the injection punch 62.

[0036] By adding molten aluminum alloy metal through the feed port provided on the barrel 63, the accumulator provides the pressure required for the injection process to the injection hydraulic cylinder 61. The output end of the injection hydraulic cylinder 61 is fastened to the injection punch 62, so that the injection hydraulic cylinder 61 drives the injection punch 62 to move, thereby pressing the aluminum alloy metal in the barrel 63 into the cavity 44.

[0037] like Figure 2 and Figure 9 As shown, the air extraction mechanism 7 includes a sleeve 71 and a vacuum pump 72, with one side of the sleeve 71 connected to the vacuum pump 72 via a pipe. The mold 4 has a cavity 44 inside; The other side of the sleeve 71 is connected to the cavity 44.

[0038] A sleeve 71 is provided above the cavity 44 of the fixed mold 4, and a flow channel is provided between the cavity 44 and the sleeve 71 to connect them. A vacuum pump 72 is connected to the other side of the sleeve 71. After the moving mold 3 and the fixed mold 4 are put together, the vacuum pump 72 is started to evacuate the cavity 44 and extract the air in the cavity 44.

[0039] like Figure 8 and Figure 9 As shown, the air extraction mechanism 7 also includes a push block 73, a baffle 74 is provided on the sleeve 71, and a limit switch 75 is provided on one side of the baffle 74; Push block 73 is located on moving mold 3; When the mold is closed: the moving mold 3 drives the push block 73 to push the baffle 74 to move.

[0040] By installing a pusher block 73 on the moving mold 3, the moving mold 3 moves the pusher block 73 when the mold is closed, so that the pusher block 73 pushes the baffle 74 to rotate, so that the baffle 74 no longer blocks the sleeve 71. Then the outside of the baffle 74 touches the limit switch 75, which in turn starts the vacuum pump 72 of the control system. The baffle 74 is equipped with a torsion spring, which can automatically reset when the mold is opened.

[0041] The ejection mechanism 5 includes an ejection hydraulic cylinder 51, and the output end of the ejection hydraulic cylinder 51 is provided with a mounting plate 52, and the mounting plate 52 is provided with a plurality of ejection rods 53.

[0042] After the aluminum alloy shell is cooled and formed, the moving mold 3 is driven away from the fixed mold 4 by the mold closing mechanism 2. At the same time, the ejector hydraulic cylinder 51 extends, thereby driving the mounting plate 52 on its output end to move, so that several ejector rods 53 push the aluminum alloy shell. Then the ejector hydraulic cylinder 51 retracts, so that the mounting plate 52 drives several ejector rods 53 to reset, thereby causing the aluminum alloy shell to fall down, thus completing the demolding.

[0043] The working principle of this invention is as follows: The hydraulic cylinder of the mold clamping mechanism 2 drives the moving mold 3 to move towards the fixed mold 4, so that the moving mold 3 and the fixed mold 4 fit together. At the same time, the push block 73 pushes the baffle 74 to move. The movement of the baffle 74 touches the limit switch 75, which in turn activates the vacuum pump 72 of the control system to evacuate the cavity 44. The operator or robotic arm adds molten aluminum alloy metal into the material cylinder 63 through the feed port. The injection hydraulic cylinder 61 drives the injection punch 62 to move, thereby injecting the molten aluminum alloy metal in the material cylinder 63 into the cavity 44. At the same time, the rack 151 moves with the injection punch 62, causing the rack 151 to drive the drive gear 153 to rotate, which in turn causes the driven gear 152 and the rotating shaft 13 to rotate. This causes the cam 11 to rotate and push the moving plate 14 to move linearly along the sliding groove 42, so that the moving plate... 14 moves and, through the return spring 17, causes the moving plate 14 to quickly return to its original position. This causes the moving plate 14 to drive the vibrating block 12 to collide with the fixed mold 4. The vibrating block 12 overcomes the elastic force of the buffer spring 164 and slides into the adjusting groove 1611, causing the vibrating block 12 to strike the fixed mold 4. At the same time, the adjusting block 165 bends according to the temperature change of the aluminum alloy molten metal, thereby causing the adjusting block 165 to push the slider 163 to move, so that the liquid in the control groove 43 flows into the adjusting groove 1611, or the liquid in the adjusting groove 1611 flows into the control groove 43. This causes the buffer spring 164 to compress or release its elastic force, thereby controlling the intensity of the vibration, promoting the flow of the aluminum alloy molten metal, and allowing the aluminum alloy molten metal to flow better into the thin wall or deep cavity areas of the mold, and causing the air bubbles in the mold to rise and be discharged.

[0044] The above description is merely a preferred embodiment of the present invention. Any modifications and / or equivalent substitutions and / or improvements made within the scope of the technical solutions claimed in the claims of this application should be included within the protection scope of the present invention. The protection scope of this application is determined by the technical solutions in the claims and their equivalents, and is not limited by the specific description in the specification.

Claims

1. A die casting apparatus for an aluminum alloy housing, the die casting apparatus comprising a mold clamping mechanism (2), characterized by: The die-casting equipment includes a moving mold (3) and a fixed mold (4). The moving mold (3) is connected to a mold closing mechanism (2). An ejection mechanism (5) is provided on one side of the moving mold (3). An injection mechanism (6) is provided on one side of the fixed mold (4). An air extraction mechanism (7) is provided on the fixed mold (4). A vibration mechanism (1) is provided on the fixed mold (4). The fixed mold (4) is provided with an installation cavity (41); The vibration mechanism (1) includes a cam (11), a vibration block (12), and an adjustment mechanism (16). The adjustment mechanism (16) includes an adjustment block (165); The vibrating block (12) is located in the mounting cavity (41). The cam (11) is used to drive the vibrating block (12) to vibrate against the fixed mold (4) to promote the flow of aluminum alloy molten metal. The adjusting block (165) is used to adjust the vibration intensity of the vibrating block (12).

2. The die casting apparatus for an aluminum alloy housing according to claim 1, characterized by: The adjustment mechanism (16) includes a fixed cylinder (161) and two sliders (163), and the fixed cylinder (161) is provided with an adjustment groove (1611). The cross-section of the regulating groove (1611) is convex; The cross-section of the vibrating block (12) is T-shaped; The fixed mold (4) is provided with a control groove (43); The adjustment groove (1611) and the vibration block (12) cooperate, and the two sliders (163) are located in the adjustment groove (1611) and the control groove (43) respectively. A buffer spring (864) is provided between the vibration block (12) and the slider (163). The adjusting block (165) has an outer layer (1651) and an inner layer (1652). The coefficient of thermal expansion of the outer layer (1651) is smaller than that of the inner layer (1652). The outer layer (1651) and the adjusting block (165) abut against each other.

3. An apparatus for die casting an aluminum alloy housing according to claim 2, characterized by: The vibration mechanism (1) further includes a rotating shaft (13), the cam (11) is located on the rotating shaft (13), a movable plate (14) is provided on one side of the cam (11), and a transmission mechanism (15) is provided on the rotating shaft (13). The fixed mold (4) is provided with a sliding groove (42); The movable plate (14) and the sliding groove (42) are slidably connected, the rotating shaft (13) and the fixed mold (4) are rotatably connected, a reset spring (17) is provided between the movable plate (14) and the inner wall of the mounting cavity (41), and the fixed cylinder (161) is located on the movable plate (14).

4. The die casting apparatus for an aluminum alloy housing according to claim 3, characterized by: The transmission mechanism (15) includes a rack (151), a driven gear (152) is provided on the rotating shaft (13), and a driving gear (153) is provided on one side of the driven gear (152). The driving gear (153) meshes with the driven gear (152) and the rack (151) respectively. The injection mechanism (6) includes an injection punch (62); The fixed mold (4) is provided with a movable groove (45); The rack (151) and the injection punch (62) are slidably connected, and the rack (151) and the movable groove (45) are movably connected.

5. An apparatus for die casting an aluminum alloy housing according to claim 4, characterized by: The injection mechanism (6) includes an injection hydraulic cylinder (61), the injection punch (62) is located on the output end of the injection hydraulic cylinder (61), and a material cylinder (63) is provided on one side of the injection punch (62).

6. The die casting apparatus for an aluminum alloy housing according to claim 1, characterized by: The air extraction mechanism (7) includes a sleeve (71) and a vacuum pump (72), with one side of the sleeve (71) connected to the vacuum pump (72) via a pipe; The fixed mold (4) is provided with a cavity (44); The other side of the sleeve (71) is connected to the cavity (44).

7. An apparatus for die casting an aluminum alloy housing according to claim 6, characterized by: The air extraction mechanism (7) also includes a push block (73), and a baffle (74) is provided on the sleeve (71). A limit switch (75) is provided on one side of the baffle (74). The pusher (73) is located on the moving mold (3); When the mold is closed: the moving mold (3) drives the push block (73) to push the baffle (74) to move.

8. The die casting apparatus for an aluminum alloy housing according to claim 1, characterized by: The ejection mechanism (5) includes an ejection hydraulic cylinder (51), the output end of which is provided with a mounting plate (52), and the mounting plate (52) is provided with a plurality of ejection rods (53).

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