A molding device for large aluminum alloy die castings

Abstract

The application discloses a forming device for large aluminum alloy die castings, which comprises a workbench, four supporting legs fixedly installed at the bottom end of the workbench, a lower die holder fixedly installed at the top end of the workbench, a ring cylinder arranged around the lower die holder and fixedly installed at the top end of the workbench, and an agitating mechanism arranged between the ring cylinder and the lower die holder. The agitating mechanism comprises a motor and a tee joint, and a supporting plate is fixedly installed between the two supporting legs close to one side of the workbench. The agitating mechanism can improve the flowability of the cooling liquid, increase the flow contact between the cooling liquid and the lower die holder, greatly improve the cooling and temperature-lowering effect of the lower die holder, and facilitate the taking of the aluminum alloy workpiece in the lower die holder after the rapid cooling of the aluminum alloy workpiece, thereby solving the problem that the existing die castings cannot be rapidly cooled after the stamping forming, the die castings are inconvenient to be taken out from the die holder, and the production efficiency of the die castings is affected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of industrial processing, in particular to a forming device for large aluminum alloy die castings. BACKGROUND

[0002] Die casting is a metal casting process characterized by the use of a mold cavity to apply high pressure to a molten metal. The mold is usually made using higher strength alloys than the component being cast, this process has similarities to injection molding. Most die cast parts are non-ferrous, such as zinc, copper, aluminum, magnesium, lead, tin and lead-tin alloys and their alloys. After die casting, the surface of the mold needs to be cooled, so that the die casting can be cooled more quickly and separated from the mold. The cooling method is to pass cooling liquid into the mold shell, and the cooling liquid flows along the internal pipeline of the mold shell to take away heat;

[0003] However, the existing cooling method of aluminum alloy die castings has poor flowability of the cooling liquid, which leads to slow cooling efficiency of the cooling liquid on the aluminum alloy die castings, thereby affecting the production efficiency of the die castings. Therefore, we propose a forming device for large aluminum alloy die castings. SUMMARY

[0004] The purpose of the present application is to provide a forming device for large aluminum alloy die castings to solve the problems raised in the background.

[0005] In order to solve the above technical problems, the present application provides the following technical scheme: a forming device for large aluminum alloy die castings, comprising a workbench, the bottom end of the workbench is fixedly installed with support legs, the number of support legs is four, the top end of the workbench is fixedly installed with a lower mold base, the lower mold base is provided with a ring cylinder, the ring cylinder is fixedly installed on the top end of the workbench, and a stirring mechanism is arranged between the ring cylinder and the lower mold base.

[0006] The stirring mechanism includes a motor, a three-way pipe, a support plate fixedly installed between the two support legs near the side of the workbench, the motor is fixedly installed at the top end of the support plate, a crankshaft is fixedly installed at the output end of the motor, a long shaft one is fixedly installed at the top end of the crankshaft, the long shaft one penetrates the workbench, and the outer wall of the long shaft one is rotationally connected with the workbench through a bearing one, a gear one is fixedly installed at the top end of the long shaft one, a rotating drum is rotationally sleeved on the outer wall of the ring cylinder through a bearing two, an outer gear ring plate is fixedly sleeved on the outer wall of the rotating drum, the gear one is engaged with the outer gear ring plate, a stirring rod is fixedly installed at the inner wall top end of the rotating drum, a hollow plate is arranged between the ring cylinder and the lower die seat, the hollow plate is fixedly installed at the top end of the workbench, a nozzle is communicated and arranged at the top end of the hollow plate, the three-way pipe is fixedly penetrated through the bottom end of the workbench and communicated with the hollow plate, a piston cylinder is communicated and arranged at one end of the three-way pipe, a piston plate is slidably connected to the inner wall of the piston cylinder, a jacking rod is fixedly installed at one side of the piston plate, the jacking rod is movably penetrated through one end of the piston cylinder, a connecting rod is hinged at one end of the jacking rod, the connecting rod is rotationally sleeved on the outer wall of the crankshaft through a bearing three, and an air suction pipe is communicated and arranged at the bottom end of the piston cylinder.

[0007] According to the above technical scheme, the number of the stirring rods is four, and the stirring rods extend between the ring cylinder and the lower die seat, so that the stirring range of the cooling liquid is improved by arranging four stirring rods.

[0008] According to the above technical scheme, a forced air cooling mechanism is arranged near the side of the rotating drum, the forced air cooling mechanism includes a ventilation pipe, a long shaft two is arranged in the ventilation pipe, the bottom end of the long shaft two is rotationally connected to the top end of the workbench through a bearing four, a gear two is fixedly sleeved on the outer wall of the long shaft two, the outer gear ring plate is movably penetrated through a through groove formed in one side of the ventilation pipe and engaged with the gear two, a fan blade is arranged above the gear two, the fan blade is fixedly installed on the outer wall of the long shaft two, and an air suction opening is formed in the other side of the ventilation pipe, so that the fan blade can generate upward blowing when rotating.

[0009] According to the above technical scheme, the outer gear ring plate is matched with the through groove formed in one side of the ventilation pipe, and the number of the fan blades is several, so that the blowing strength can be improved by arranging several fan blades.

[0010] According to the above technical scheme, a dustproof net is fixedly installed on the inner wall of the air suction opening, so that the dustproof net can play a certain dustproof role on the air suction opening, dust is prevented from being sucked into the ventilation pipe through the air suction opening and adhering to the surface of the fan blade to affect the normal operation of the fan blade.

[0011] According to the above technical scheme, four stirring rods are provided with rotating mechanisms, the rotating mechanism comprises a gear three, the gear three is fixedly installed at the bottom end of the stirring rod, an inner tooth ring plate is fixedly installed on the inner wall of the ring cylinder, the gear three is engaged with the inner tooth ring plate, and a stirring plate is fixedly installed on the outer wall of the stirring rod.

[0012] According to the above technical scheme, the number of the stirring plates is several.

[0013] According to the above technical scheme, the shape of the ventilation pipe is inverted J-shaped, and the air outlet at the top end of the ventilation pipe faces the upper side of the lower mold base, so that the contact area of the blowing and the aluminum alloy die casting is increased.

[0014] According to the above technical scheme, the number of the spray heads is several.

[0015] According to the above technical scheme, a one-way valve one is fixedly installed in the air suction pipe, and a one-way valve two is fixedly installed in the three-way pipe, so that the backflow of the cooling liquid into the three-way pipe can be avoided.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] (1) The forming device for large aluminum alloy die casting can improve the flowability of the cooling liquid, increase the flow contact of the cooling liquid with the lower mold base, and greatly improve the cooling and temperature reduction effect of the lower mold base, so that the aluminum alloy workpiece in the lower mold base is quickly cooled and then conveniently taken out, thereby solving the problem that the existing die casting cannot be quickly cooled after being formed by stamping, which leads to the inconvenience of taking out the die casting from the mold base, and affecting the production efficiency of the die casting.

[0018] (2) The forming device for large aluminum alloy die casting can make the blowing directly blow to the aluminum alloy workpiece in the lower mold base through the guidance of the ventilation pipe, so as to directly air cool the aluminum alloy workpiece, further improve the cooling rate of the aluminum alloy die casting after stamping, and has high practicability.

[0019] (3) The forming device for large aluminum alloy die casting can make the stirring plate rotate while doing circular motion in the cooling liquid through the rotating mechanism, so as to further improve the stirring of the cooling liquid, further improve the flowability of the cooling liquid, improve the cooling effect of the cooling liquid on the lower mold base, and has simple structure and high practicability.

[0020] (4) The forming device for large aluminum alloy die casting can play a certain dustproof role on the air suction port, avoid dust from being sucked into the ventilation pipe through the air suction port and adhering to the surface of the fan blade, and affect the normal operation of the fan blade. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of the specification, illustrate embodiments of the application and are used to explain the application, but are not intended to limit the application. In the drawings:

[0022] Figure 1 It is a schematic diagram of the overall structure of the application;

[0023] Figure 2 It is a schematic diagram of the front view of the structure of the application;

[0024] Figure 3 It is a schematic diagram of the enlarged structure of part A of the application; Figure 2

[0025] Figure 4 It is a schematic diagram of the enlarged structure of part B of the application; Figure 2

[0026] Figure 5 It is a schematic diagram of the enlarged structure of part C of the application; Figure 2

[0027] Figure 6 It is a schematic diagram of the tee structure of the application.

[0028] In the figure: 1, workbench; 2, lower die holder; 3, ring cylinder; 4, stirring mechanism; 5, support leg; 6, air cooling mechanism; 7, rotating mechanism; 8, dust screen; 401, support plate; 402, motor; 403, crankshaft; 404, long shaft one; 405, gear one; 406, outer tooth ring plate; 407, rotating cylinder; 408, stirring rod; 409, connecting rod; 410, ejector rod; 411, piston plate; 412, piston cylinder; 413, tee; 414, hollow plate; 415, spray head; 416, air suction pipe; 601, ventilation pipe; 602, long shaft two; 603, gear two; 604, fan blade; 605, air suction port; 701, gear three; 702, stirring plate; 703, inner tooth ring plate. Embodiment

[0029] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application. Embodiment

[0030] The preferred embodiment of the forming device for large aluminum alloy die castings provided by the application is as follows: Figures 1 to 6 ​​​The device is shown: a large aluminum alloy die casting forming device, including a workbench 1, the bottom end of the workbench 1 is fixedly installed with support legs 5, the number of support legs 5 is four, the top end of the workbench 1 is fixedly installed with a lower mold base 2, the lower mold base 2 is provided with a ring cylinder 3, the ring cylinder 3 is fixedly installed on the top end of the workbench 1, and the ring cylinder 3 is provided with an agitating mechanism 4 between the lower mold base 2;

[0031] The agitating mechanism 4 comprises a motor 402, a three-way pipe 413, a support plate 401 fixedly installed between two support legs 5 near one side of the workbench 1, the motor 402 is fixedly installed on the top end of the support plate 401, a crankshaft 403 is fixedly installed on the output end of the motor 402, a long shaft one 404 is fixedly installed on the top end of the crankshaft 403, the long shaft one 404 penetrates through the workbench 1, and the outer wall of the long shaft one 404 is rotationally connected with the workbench 1 through a bearing one, a gear one 405 is fixedly installed on the top end of the long shaft one 404, a rotating cylinder 407 is rotationally sleeved on the outer wall of the ring cylinder 3 through a bearing two, an outer gear ring plate 406 is fixedly sleeved on the outer wall of the rotating cylinder 407, the gear one 405 is engaged with the outer gear ring plate 406, a stirring rod 408 is fixedly installed on the inner wall top end of the rotating cylinder 407, a hollow plate 414 is fixedly installed on the top end of the workbench 1 between the ring cylinder 3 and the lower mold base 2, a nozzle 415 is communicatedly arranged on the top end of the hollow plate 414, the three-way pipe 413 is fixedly penetrated through the bottom end of the workbench 1 and communicatedly arranged with the hollow plate 414, a piston cylinder 412 is communicatedly arranged on one end of the three-way pipe 413, a piston plate 411 is slidably connected on the inner wall of the piston cylinder 412, a top rod 410 is fixedly installed on one side of the piston plate 411, the top rod 410 movably penetrates through one end of the piston cylinder 412, a connecting rod 409 is hingedly arranged on one end of the top rod 410, the connecting rod 409 is rotationally sleeved on the outer wall of the crankshaft 403 through a bearing three on one end, and an air suction pipe 416 is communicatedly arranged on the bottom end of the piston cylinder 412.

[0032] The technical scheme is specifically as follows: after stamping of the aluminum alloy die casting is completed, cooling liquid is poured between the ring cylinder 3 and the lower die holder 2, then the motor 402 is started, the motor 402 drives the crankshaft 403 to rotate, the crankshaft 403 drives the long shaft one 404 to rotate, the long shaft one 404 drives the gear one 405 to rotate, the gear one 405 drives the outer gear ring plate 406 to rotate, the outer gear ring plate 406 drives the stirring rod 408 to make circular motion in the cooling liquid, so that the cooling liquid is stirred, the flowability of the cooling liquid is improved, the crankshaft 403 also drives the connecting rod 409 to move back and forth, when the connecting rod 409 moves to the right, the connecting rod 409 drives the ejector rod 410 to move into the piston cylinder 412, the ejector rod 410 drives the piston plate 411 to compress air in the piston cylinder 412, the one-way valve one in the air suction pipe 416 is closed, the one-way valve two in the three-way pipe 413 is opened, the compressed air is transported into the hollow plate 414 through the three-way pipe 413, and then is sprayed out through the spray head 415, so that air bubbles are generated in the cooling liquid, the flowability of the cooling liquid is further improved, the flow contact of the cooling liquid with the lower die holder 2 is increased, and the cooling and temperature reduction effect of the lower die holder 2 is greatly improved, so that the aluminum alloy workpiece in the lower die holder 2 is rapidly cooled, and then the aluminum alloy workpiece is conveniently taken out, the problem that the existing die casting cannot be rapidly cooled after stamping forming, the die casting is inconvenient to be taken out from the die holder, and the production efficiency of the die casting is affected is solved.

[0033] Further, the number of the stirring rods 408 is four, and the stirring rods 408 extend into the ring cylinder 3 and the lower die holder 2.

[0034] The four stirring rods 408 are arranged, and the stirring range of the cooling liquid is improved.

[0035] Further, the number of the spray heads 415 is several.

[0036] Further, the one-way valve one is fixedly installed in the air suction pipe 416, and the one-way valve two is fixedly installed in the three-way pipe 413.

[0037] The one-way valve one and the one-way valve two are arranged, and the cooling liquid can be prevented from flowing back to the three-way pipe 413. Embodiment

[0038] On the basis of the embodiment one, the forming device for the large aluminum alloy die casting provided by the application is preferably as follows: Figures 1 to 6As shown: the side close to the drum 407 is provided with a air cooling mechanism 6, the air cooling mechanism 6 includes ventilation pipe 601, ventilation pipe 601 inside is provided with long shaft two 602, long shaft two 602 bottom end is rotatably connected in the top of workbench 1 through bearing four, long shaft two 602 outer wall is fixedly provided with gear two 603, outer tooth ring plate 406 is movably penetrated through the through groove of one side of ventilation pipe 601 and is engaged with gear two 603, the fan blade 604 is arranged on the top of gear two 603, the fan blade 604 is fixedly installed on the outer wall of long shaft two 602, the other side of ventilation pipe 601 is provided with suction port 605.

[0039] Wherein, by setting the suction port 605, ensure that the fan blade 604 can produce upward blowing when rotating.

[0040] The above technical scheme is specifically, the outer tooth ring plate 406 also drives gear two 603 to rotate, gear two 603 drives long shaft two 602 to rotate, long shaft two 602 drives fan blade 604 to rotate, fan blade 604 produces upward blowing when rotating, blowing is directly blown to the aluminum alloy workpiece in the lower die seat 2 through the guidance of ventilation pipe 601, thereby directly air-cooling, further improve the cooling rate of aluminum alloy die casting after stamping, and the practicability is strong.

[0041] Further, the outer tooth ring plate 406 is matched with the through groove of one side of the ventilation pipe 601, and the number of the fan blade 604 is several;

[0042] Wherein, by setting several fan blades 604, the strength of blowing can be improved.

[0043] Further, the dust screen 8 is fixedly installed on the inner wall of the suction port 605;

[0044] Wherein, by setting the dust screen 8, the suction port 605 can play a certain dustproof effect, to avoid dust from being sucked into the ventilation pipe 601 through the suction port 605 and adhering to the surface of the fan blade 604, affecting the normal operation of the fan blade 604.

[0045] Further, the ventilation pipe 601 is in the shape of inverted J type, and the air outlet at the top of the ventilation pipe 601 faces the upper side of the lower die seat 2, increasing the contact area of blowing and the aluminum alloy die casting. Embodiment

[0046] On the basis of embodiment one, the forming device for large aluminum alloy die casting provided by the application is preferably implemented as Figures 1 to 6 As shown: four stirring rods 408 are provided with rotating mechanisms 7, the rotating mechanism 7 includes gear three 701, the gear three 701 is fixedly installed at the bottom end of the stirring rod 408, the inner tooth ring plate 703 is fixedly installed on the inner wall of the ring cylinder 3, the gear three 701 is engaged with the inner tooth ring plate 703, and the stirring plate 702 is fixedly installed on the outer wall of the stirring rod 408;

[0047] Wherein, by setting the gear three 701, the gear three 701 can drive the stirring rod 408 to rotate under the action of the inner tooth ring plate 703.

[0048] In the above technical solution, specifically, the stirring rod 408 drives the gear three 701 to do the circular motion when doing the circular motion, the gear three 701 produces rotation under the action of the inner tooth ring plate 703, the gear three 701 drives the stirring rod 408 to rotate, the stirring rod 408 drives the stirring plate 702 to rotate, so that the stirring plate 702 does the circular motion in the cooling liquid while producing rotation, thereby further improving the stirring of the cooling liquid, further improving the flowability of the cooling liquid, improving the cooling effect of the cooling liquid on the lower mold base 2, simple structure, strong practicability.

[0049] Further, the number of the stirring plate 702 is several.

[0050] It should be noted that in this article, such as the first and second relationship terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "include", "contain" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0051] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and does not limit the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it still can be modified to the technical solutions recorded in the foregoing embodiments, or to the equivalent replacement of part of the technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A forming device for large aluminum alloy die castings, comprising a worktable (1), characterized in that: The bottom end of the workbench (1) is fixedly equipped with support legs (5), and there are four support legs (5). The top end of the workbench (1) is fixedly equipped with a lower mold base (2). The lower mold base (2) is surrounded by an annular cylinder (3). The annular cylinder (3) is fixedly installed on the top end of the workbench (1). A stirring mechanism (4) is provided between the annular cylinder (3) and the lower mold base (2). The stirring mechanism (4) includes a motor (402) and a three-way pipe (413). A support plate (401) is fixedly installed between the two support legs (5) on the side near the workbench (1). The motor (402) is fixedly installed on the top of the support plate (401). A crankshaft (403) is fixedly installed at the output end of the motor (402). A long rotating shaft (404) is fixedly installed at the top of the crankshaft (403). The long rotating shaft (404) passes through... A workbench (1) is provided, and the outer wall of the long rotating shaft (404) is rotatably connected to the workbench (1) via a bearing. A gear (405) is fixedly installed at the top of the long rotating shaft (404). A rotating cylinder (407) is rotatably sleeved on the outer wall of the ring cylinder (3) via a bearing. An external gear ring plate (406) is fixedly sleeved on the outer wall of the rotating cylinder (407). The gear (405) meshes with the external gear ring plate (406). The top of the inner wall of the rotating cylinder (407) is... A stirring rod (408) is fixedly installed at one end. A hollow plate (414) is provided between the ring cylinder (3) and the lower mold base (2). The hollow plate (414) is fixedly installed at the top of the workbench (1). A nozzle (415) is connected to the top of the hollow plate (414). A three-way pipe (413) is fixedly installed through the bottom of the workbench (1) and connected to the hollow plate (414). A piston cylinder (412) is connected to one end of the three-way pipe (413). A piston plate (411) is slidably connected to the inner wall of the piston cylinder (412). A push rod (410) is fixedly installed on one side of the piston plate (411). The push rod (410) movably passes through one end of the piston cylinder (412). A connecting rod (409) is hinged to one end of the push rod (410). One end of the connecting rod (409) is rotated and sleeved on the outer wall of the crankshaft (403) through a bearing. An intake pipe (416) is connected to the bottom end of the piston cylinder (412). Each of the four stirring rods (408) is provided with a rotating mechanism (7). The rotating mechanism (7) includes a gear three (701). The gear three (701) is fixedly installed at the bottom end of the stirring rod (408). An internal gear ring plate (703) is fixedly installed on the inner wall of the ring cylinder (3). The gear three (701) meshes with the internal gear ring plate (703). A stirring plate (702) is fixedly installed on the outer wall of the stirring rod (408).

2. The forming device for large aluminum alloy die castings according to claim 1, characterized in that: The number of stirring rods (408) is four, and the stirring rods (408) extend between the ring cylinder (3) and the lower mold base (2).

3. The forming device for large aluminum alloy die castings according to claim 1, characterized in that: A cooling mechanism (6) is provided near the rotating drum (407). The cooling mechanism (6) includes a ventilation pipe (601). A long rotating shaft (602) is provided inside the ventilation pipe (601). The bottom end of the long rotating shaft (602) is rotatably connected to the top of the workbench (1) through a bearing. A gear (603) is fixedly sleeved on the outer wall of the long rotating shaft (602). The external gear ring plate (406) movably passes through a through groove opened on one side of the ventilation pipe (601) and meshes with the gear (603). A fan blade (604) is provided above the gear (603). The fan blade (604) is fixedly installed on the outer wall of the long rotating shaft (602). An air intake (605) is opened on the other side of the ventilation pipe (601).

4. The forming device for a large aluminum alloy die-casting part according to claim 3, characterized in that: The external toothed ring plate (406) is adapted to the through groove opened on one side of the ventilation pipe (601), and the number of fan blades (604) is several.

5. The forming device for a large aluminum alloy die-casting part according to claim 3, characterized in that: A dustproof net (8) is fixedly installed on the inner wall of the air intake (605).

6. The forming device for a large aluminum alloy die-casting part according to claim 1, characterized in that: The number of stirring plates (702) is several.

7. The forming device for a large aluminum alloy die-casting part according to claim 3, characterized in that: The ventilation pipe (601) is in the shape of an inverted J, and the air outlet at the top of the ventilation pipe (601) faces upwards from the lower mold base (2).

8. The forming apparatus for a large aluminum alloy die-casting part according to claim 1, characterized in that: The number of nozzles (415) is several.

9. The forming device for a large aluminum alloy die-casting part according to claim 1, characterized in that: One-way valve 1 is fixedly installed in the air intake pipe (416), and one-way valve 2 is fixedly installed in the three-way pipe (413).

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