An aluminum alloy die casting mold

Abstract

This utility model discloses an aluminum alloy die-casting mold, relating to the field of metal die-casting machine technology. It includes a frame, a top rack, and a die-casting mechanism. An ejection mechanism is located inside the frame, and a clamping mechanism is located on the front side of the frame. The ejection mechanism includes a mounting frame, with a first motor located at the bottom of the mounting frame. A drive gear is fixedly mounted on the output end of the first motor, and a driven rack meshes with the outer side of the drive gear. The first motor drives the drive gear to rotate, causing the driven racks on both sides and the inclined frame to move laterally along a second slide bar. The inclined surface of the inclined frame contacts the movable part at the bottom of the ejector plate and applies an upward pushing force, overcoming spring resistance and pushing the ejector plate upward. This smoothly ejects the aluminum alloy casting tightly attached to the fixed mold cavity, effectively avoiding the difficulty of manual removal and significantly improving demolding efficiency and operational safety.

Description

Technical Field

[0001] This utility model relates to the field of metal die casting machine technology, specifically to an aluminum alloy die casting mold. Background Technology

[0002] Die casting is a metal casting process characterized by applying high pressure to molten metal within a mold cavity. The mold is typically made of a high-strength alloy, and the process is somewhat similar to injection molding. Most die-cast parts are iron-free, and are made from materials such as zinc, copper, aluminum, magnesium, lead, tin, and lead-tin alloys and their alloys.

[0003] After aluminum alloy die castings are formed by die casting and cooling, the formed aluminum alloy castings often fit tightly inside the fixed mold after the moving mold separates from the fixed mold. This makes it difficult for workers to quickly remove the castings from the fixed mold, affecting the efficiency of casting processing. Utility Model Content

[0004] To solve the above-mentioned technical problems, an aluminum alloy die-casting mold is provided. This technical solution solves the problem mentioned in the background art that after aluminum alloy die castings are die-cast and cooled, the formed aluminum alloy castings are often tightly attached to the fixed mold after the moving mold separates from the fixed mold, which makes it difficult for workers to quickly remove the castings from the fixed mold and affects the efficiency of casting processing.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An aluminum alloy die-casting mold includes a frame, a bracket is provided at the top of the frame, a die-casting mechanism is provided at the top of the bracket, an ejection mechanism is provided inside the frame, and a clamping mechanism is provided at the front of the bracket.

[0007] The ejection mechanism includes a mounting frame. A first motor is installed at the bottom of the mounting frame. A drive gear is fixedly installed at the output end of the first motor. A driven rack meshes with the outer side of the drive gear. Two sets of driven racks are provided. The outer sides of both sets of driven racks are fixedly connected to the inner side of the inclined frame. The left and right sides of both sets of inclined frames are slidably installed on the outer surface of the second slide rod. The outer ends of both sets of the second slide rod are located on the inner side of the mounting plate.

[0008] Preferably, a fixed mold is provided at the top of the machine frame, and an ejector plate is provided inside the machine frame at the position of the fixed mold. Movable parts are provided at the four corners of the bottom end of the ejector plate. Springs are sleeved on the outer surface of each of the four sets of movable parts, and the bottom ends of each of the four sets of movable parts are tangent to the inclined frame.

[0009] Preferably, the die-casting mechanism includes a hydraulic cylinder, which is disposed at the top of the frame. A moving mold is disposed at the movable end of the hydraulic cylinder. First slide rods are disposed at the four corners of the top of the moving mold, penetrating the top of the frame. Limit blocks are disposed at the top of each of the four sets of first slide rods.

[0010] Preferably, the clamping mechanism includes a telescopic cylinder, which is located on the rear side of the frame. A movable frame is fixedly installed on the telescopic end of the telescopic cylinder. An installation groove is provided on the inner side of the movable frame. Two sets of installation grooves are provided. A lead screw is rotatably installed inside each set of installation grooves. A guide rod is also provided inside each set of installation grooves. One end of each set of lead screws is fixedly installed on the output end of the second motor. Two sets of movable blocks are threadedly connected to the outer surface of each set of lead screws. The two sets of movable blocks are also slidably installed on the outer surface of the guide rod.

[0011] Preferably, a movable plate is movably installed on the inner side of the movable frame. Two sets of movable plates are provided. Movable grooves are opened on the outer side of both sets of movable plates. Two sets of third sliding rods are provided inside the two sets of movable grooves. Two sets of sliders are slidably installed on the outer surface of the two sets of third sliding rods.

[0012] Preferably, both sets of sliders are movably connected to the movable block via a second connecting rod, and both sets of sliders are also movably connected to the inner side of the movable frame via a first connecting rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The first motor drives the active gear to rotate, causing the driven racks and inclined frames on both sides to move laterally along the second slide bar. The inclined surface of the inclined frame contacts the movable part at the bottom of the ejector plate and applies an upward pushing force to overcome the spring resistance and push the ejector plate upward, thereby smoothly ejecting the aluminum alloy casting that is tightly attached to the fixed mold cavity. This effectively avoids the difficulty of manual removal and significantly improves demolding efficiency and operational safety. Secondly, by setting up a clamping mechanism, the movable frame is pushed forward by the telescopic cylinder, so that the movable plate is close to the ejected casting. The second motor drives the lead screw to rotate, causing the movable block to move along the guide rod. Through the linkage of the first connecting rod and the second connecting rod, the slider is controlled to slide on the third slide bar, thereby adjusting the distance between the two sets of movable plates to accurately clamp both sides of the casting. Then, the casting is transferred out of the working area by the retraction of the cylinder, further improving the removal efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the clamping mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the ejection mechanism of this utility model.

[0019] The numbers on the map are:

[0020] 1. Frame; 2. Stand;

[0021] 3. Die-casting mechanism; 301. Hydraulic cylinder; 302. Moving mold; 303. First slide bar; 304. Limit block;

[0022] 4. Ejection mechanism; 401. Mounting frame; 402. First motor; 403. Drive gear; 404. Driven rack; 405. Inclined frame; 406. Mounting plate; 407. Second slide bar; 408. Moving part; 409. Spring; 410. Ejection plate; 411. Fixed mold;

[0023] 5. Clamping mechanism; 501. Telescopic cylinder; 502. Movable frame; 503. Mounting slot; 504. Lead screw; 505. Guide rod; 506. Second motor; 507. Movable block; 508. First connecting rod; 509. Second connecting rod; 510. Movable plate; 511. Movable slot; 512. Third sliding rod; 513. Slider. Detailed Implementation

[0024] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0025] Reference Figure 1-4 As shown, an aluminum alloy die-casting mold includes a frame 1, a bracket 2 at the top of the frame 1, a die-casting mechanism 3 at the top of the bracket 2, an ejection mechanism 4 inside the frame 1, and a clamping mechanism 5 at the front of the bracket 2. The ejection mechanism 4 includes a mounting frame 401, a first motor 402 at the bottom of the mounting frame 401, a drive gear 403 fixedly mounted at the output end of the first motor 402, and a driven rack 404 meshing with the outer side of the drive gear 403. Two sets of driven racks 404 are provided. Both sides are fixedly connected to the inner side of the inclined frame 405. The left and right sides of the two sets of inclined frames 405 are slidably installed on the outer surface of the second slide rod 407. The outer ends of the two sets of second slide rods 407 are set on the inner side of the mounting plate 406. The top of the machine frame 1 is provided with a fixed mold 411. The inside of the machine frame 1 is provided with an ejector plate 410 located at the position of the fixed mold 411. Movable parts 408 are provided at the four corners of the bottom end of the ejector plate 410. Springs 409 are sleeved on the outer surface of the four sets of movable parts 408. The bottom ends of the four sets of movable parts 408 are tangent to the inclined frame 405.

[0026] In this scheme, the driven rack 404 is driven by the active gear 403, which realizes the synchronous reverse linear movement of the inclined frame 405. The horizontal movement of the inclined frame 405 is converted into the vertical displacement of the movable part 408 through the contact between the movable part 408 and the inclined surface of the inclined frame 405, thus realizing the smooth lifting effect of the ejector plate 410. The preload of the spring 409 realizes the automatic reset effect of the ejector plate 410 after ejection. A second slide rod 407 is provided to slide with the inclined frame 405. The second slide rod 407 constrains the movement trajectory of the inclined frame 405, thus ensuring the stability of the transmission process.

[0027] Reference Figure 1-2 As shown, the die-casting mechanism 3 includes a hydraulic cylinder 301, which is located at the top of the frame 2. The movable end of the hydraulic cylinder 301 is provided with a moving mold 302. The top of the moving mold 302 is provided with first slide rods 303 through the top of the frame 2 at the four corners. Each of the four sets of first slide rods 303 is provided with a limit block 304 at its top.

[0028] In this solution, the hydraulic cylinder 301 provides power output, enabling the large-tonnage stable mold closing and opening action of the moving mold 302. Through the sliding cooperation of multiple sets of first slide rods 303 with the frame 2, the first slide rods 303 precisely guide the movement path of the moving mold 302, preventing deviation during mold closing. Furthermore, the fixed connection between the limit block 304 and the first slide rod 303 achieves mechanical limit and safety protection for the stroke of the moving mold 302. The direct drive connection between the hydraulic cylinder 301 and the moving mold 302 achieves high-precision pressure control for the aluminum alloy die casting process.

[0029] Reference Figure 3As shown, the clamping mechanism 5 includes a telescopic cylinder 501, which is located on the rear side of the frame 2. A movable frame 502 is fixedly mounted on the telescopic end of the telescopic cylinder 501. An installation groove 503 is provided on the inner side of the movable frame 502. Two sets of installation grooves 503 are provided, and a lead screw 504 is rotatably mounted inside each set of installation grooves 503. Guide rods 505 are also provided inside each set of installation grooves 503. One end of each set of lead screws 504 is fixedly mounted on the output end of the second motor 506. Two sets of movable blocks 507 are threadedly connected to the outer surface of each set of lead screws 504. The movable block 507 is also slidably mounted on the outer surface of the guide rod 505. The movable plate 510 is movably mounted on the inner side of the movable frame 502. There are two sets of movable plates 510. The outer side of the two sets of movable plates 510 is provided with movable grooves 511. The inner side of the two sets of movable grooves 511 is provided with two sets of third slide rods 512. The outer surface of the two sets of third slide rods 512 is slidably mounted with two sets of sliders 513. The two sets of sliders 513 are movably connected to the movable block 507 through the second connecting rod 509. The two sets of sliders 513 are also movably connected to the inner side of the movable frame 502 through the first connecting rod 508.

[0030] In this solution, the telescopic cylinder 501 drives the movable frame 502 to move horizontally, achieving the effect of the clamping mechanism 5 moving in and out of the working area as a whole. The second motor 506 drives the lead screw 504 to rotate. Through the threaded transmission between the lead screw 504 and the movable block 507, the movable block 507 achieves a precise linear movement along the guide rod 505. Through the linkage mechanism formed by the first connecting rod 508 and the second connecting rod 509, the linear motion of the movable block 507 is converted into the sliding effect of the slider 513 along the third sliding rod 512. Furthermore, by setting two sets of movable plates 510 connected to the slider 513, the slider 513 moves in opposite directions or in opposite directions, ultimately achieving the adaptive clamping and release effect of the movable plate 510 on the workpiece.

[0031] The working principle of this utility model is as follows: During the die casting process, the hydraulic cylinder 301 drives the moving mold 302 to move downwards, closing with the fixed mold 411 to form a cavity. After high-pressure injection of molten aluminum alloy, it cools and solidifies. When the mold opens, the hydraulic cylinder 301 drives the moving mold 302 to rise and reset. Subsequently, the first motor 402 starts, driving the drive gear 403 to rotate, which drives the driven racks 404 on both sides and the inclined frame 405 to move laterally along the second slide bar 407. The inclined surface of the inclined frame 405 pushes the movable part 408 upwards, overcoming the resistance of the spring 409, and driving the ejector plate 410 to rise, ejecting the casting from the fixed mold 41. 1. After ejection, the first motor 402 reverses, the inclined frame 405 resets, and under the action of the spring 409, the ejection plate 410 drives the movable part 408 to descend and reset. At the same time, the telescopic cylinder 501 pushes the movable frame 502 forward, and the second motor 506 drives the lead screw 504 to rotate, causing the movable block 507 to move along the guide rod 505. Through the linkage of the first connecting rod 508 and the second connecting rod 509, the slider 513 is driven to slide along the third sliding rod 512, so that the two sets of movable plates 510 move towards each other to clamp the casting. Then the telescopic cylinder 501 retracts, moving the casting out of the working area.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An aluminum alloy die-casting mold, comprising a frame (1), characterized in that, The top of the frame (1) is provided with a frame (2), the top of the frame (2) is provided with a die-casting mechanism (3), the inside of the frame (1) is provided with an ejection mechanism (4), and the front side of the frame (2) is provided with a clamping mechanism (5). The ejection mechanism (4) includes a mounting frame (401). A first motor (402) is provided at the bottom of the mounting frame (401). A drive gear (403) is fixedly installed at the output end of the first motor (402). A driven rack (404) meshes with the outer side of the drive gear (403). Two sets of driven racks (404) are provided. The outer sides of both sets of driven racks (404) are fixedly connected to the inner side of the inclined frame (405). The left and right sides of both sets of inclined frames (405) are slidably installed on the outer surface of the second slide rod (407). The outer ends of both sets of the second slide rod (407) are provided on the inner side of the mounting plate (406).

2. The aluminum alloy die-casting mold according to claim 1, characterized in that: The top of the frame (1) is provided with a fixed mold (411), and the inside of the frame (1) is provided with an ejector plate (410) located at the position of the fixed mold (411). The bottom four corners of the ejector plate (410) are provided with movable parts (408). The outer surface of each of the four movable parts (408) is fitted with a spring (409), and the bottom of each of the four movable parts (408) is tangent to the inclined frame (405).

3. The aluminum alloy die-casting mold according to claim 1, characterized in that: The die-casting mechanism (3) includes a hydraulic cylinder (301), which is located at the top of the frame (2). The movable end of the hydraulic cylinder (301) is provided with a moving mold (302). The top of the moving mold (302) is provided with first slide rods (303) that penetrate the top of the frame (2) at the four corners. The top of each of the four sets of first slide rods (303) is provided with a limit block (304).

4. The aluminum alloy die-casting mold according to claim 1, characterized in that: The clamping mechanism (5) includes a telescopic cylinder (501), which is located on the rear side of the frame (2). A movable frame (502) is fixedly installed on the telescopic end of the telescopic cylinder (501). An installation groove (503) is provided on the inner side of the movable frame (502). Two sets of installation grooves (503) are provided. A lead screw (504) is rotatably installed inside each of the two sets of installation grooves (503). A guide rod (505) is also provided inside each of the two sets of installation grooves (503). One end of each of the two sets of lead screws (504) is fixedly installed on the output end of the second motor (506). Two sets of movable blocks (507) are threadedly connected to the outer surface of each of the two sets of lead screws (504). The two sets of movable blocks (507) are also slidably installed on the outer surface of the guide rod (505).

5. The aluminum alloy die-casting mold according to claim 4, characterized in that: The movable frame (502) has a movable plate (510) movably installed on its inner side. There are two sets of movable plates (510). The outer side of each set of movable plates (510) is provided with a movable groove (511). The interior of each set of movable grooves (511) is provided with two sets of third slide rods (512). The outer surface of each set of third slide rods (512) is slidably installed with two sets of sliders (513).

6. The aluminum alloy die-casting mold according to claim 5, characterized in that: Both sets of sliders (513) are movably connected to the movable block (507) via the second connecting rod (509), and both sets of sliders (513) are also movably connected to the inner side of the movable frame (502) via the first connecting rod (508).

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