Die-casting device for aluminum alloy parts

Abstract

This invention relates to the field of aluminum alloy parts processing technology, specifically disclosing a die-casting molding device for aluminum alloy parts. The device includes a base, a support frame fixedly mounted on the top of the base, and a forming table fixedly mounted on the top of the support frame. During application, by linking a first demolding mechanism with the output end of a hydraulic cylinder, demolding can be completed synchronously during mold opening and closing, eliminating the need to wait for an additional demolding start signal. The device utilizes a sleeve and lower connecting rod with a movable structure to allow for space during initial mold closing and opening, ensuring the mold closing process is not interfered with by the demolding structure. Furthermore, by setting the engagement timing of the second rack and second gear, the pushing action can be initiated only after the part has completely detached from the fixed mold, preventing jamming caused by premature contact of the pushing frame with the part. This ensures a smooth transition between demolding and pushing actions, accelerating the overall production pace.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of aluminum alloy part processing, and in particular to a die-casting forming device for aluminum alloy parts. BACKGROUND

[0002] The die-casting forming device for aluminum alloy parts is a core equipment for producing high-precision aluminum alloy parts in the fields of automobile manufacturing, aerospace, etc., and the device can rapidly press molten aluminum alloy into a mold cavity through high pressure, and the desired shape of the part can be obtained after cooling and solidification. The performance of the device directly determines the production efficiency, dimensional accuracy and mechanical properties of the aluminum alloy parts, and the device is an indispensable key link in the aluminum alloy part industry chain. With the rapid development of new energy vehicles and other industries, higher requirements are put forward for the production efficiency and operating cost of the die-casting forming device.

[0003] The die-casting forming device for aluminum alloy parts in the prior art is usually composed of a base, a mounting cabinet, a workbench, a cooling device and a hydraulic control device, and can realize rapid cooling of molten aluminum alloy and accurate opening and closing of the mold, effectively shortening the production cycle and improving the output per unit time. The optimization design of the cooling system helps to reduce the internal stress of the casting, improve the dimensional accuracy and surface quality of the finished product, and ensure the mechanical properties of the casting. The application of the hydraulic system makes the mold operation more automated, reduces manual intervention, and improves the stability and repeatability of the production process.

[0004] The existing device has the problems of systematic structural redundancy and high operating cost in the actual production process. After the die-casting process is completed, especially for aluminum alloy parts with complex internal cavities and irregular protrusions, the parts are tightly embedded in the fixed mold and are difficult to fall out naturally. The existing technology needs to additionally configure an independent electric, hydraulic or pneumatic demolding system to drive the ejector pin to complete demolding. After demolding, a separate mechanical hand carrying system, manual taking and placing system or gas cylinder electric control system is needed to take out the product from the mold area. Two completely independent power and control systems not only greatly increase the manufacturing cost and installation and debugging difficulty of the equipment, but also lead to excessive number of electrical and pneumatic components, large daily maintenance workload, lack of a better linkage type rapid demolding equipment, and high overall use cost, both in the early investment cost and in the later maintenance cost. Therefore, the device needs to be improved and designed. SUMMARY

[0005] The application aims to provide a die-casting forming device for aluminum alloy parts to solve the problems in the background art.

[0006] To achieve the above objectives, the present invention provides a die-casting forming apparatus for aluminum alloy parts, comprising a base, a support frame fixedly mounted on the top of the base, a forming platform fixedly mounted on the top of the support frame, a top bracket fixedly mounted on the top of the forming platform, a hydraulic cylinder fixedly mounted on the top of the top bracket, a moving mold fixedly mounted on the bottom output end of the hydraulic cylinder, a fixed mold fixedly mounted on the forming platform, the fixed mold being located directly below the moving mold, and a demolding device provided on the rear side of the forming platform, the demolding end of the demolding device being movably connected to the interior of the fixed mold; The demolding device includes a first demolding mechanism, a second demolding mechanism, and a linkage mechanism. The first demolding mechanism is located at the bottom of the forming platform, and its demolding end is movable within the fixed mold. The second demolding mechanism is fixedly installed on the rear side of the forming platform. The linkage mechanism is located on both sides of the second demolding mechanism. The second demolding mechanism is connected to the first demolding mechanism via the linkage mechanism. The first demolding mechanism is linked to the output end of the hydraulic cylinder.

[0007] Furthermore, a conveyor frame is fixedly installed on the front side of the forming table, and a conveyor belt is rotatably connected to the inner side of the conveyor frame. A motor is provided on one side of the conveyor frame, which is used to control the conveyor belt to rotate and transport within the conveyor frame.

[0008] Furthermore, an injection pipe is fixedly installed at the bottom of the fixed mold, an installation flange is fixedly installed at the input end of the injection pipe, the top output end of the injection pipe passes through the fixed mold and is connected, and an electrothermal anti-coagulation component is provided at the top of the injection pipe.

[0009] Furthermore, the electrothermal anti-coagulation component includes an insulating jacket, which is fixedly connected to the outer surface of the top end of the injection pipe. An electric heating wire is fixedly installed on the inner side of the insulating jacket, and the inner side of the electric heating wire is in contact with the injection pipe. An insulating layer is provided on the surface of the injection pipe.

[0010] Furthermore, the first demolding mechanism includes a fixed sleeve, which is fixedly installed at the four corners of the bottom of the molding platform. A first return spring is fixedly connected to the lower end of the fixed sleeve. A base plate is fixedly installed at the bottom of the first return spring. Demolding push rods are fixedly installed at the four corners of the top of the base plate. The top of the demolding push rods extends through the molding platform into the fixed mold. An ejector frame is fixedly connected to the end of the demolding push rod located in the fixed mold. The ejector frame moves within the fixed mold and is sleeved on the outside of the output end of the injection pipe.

[0011] Furthermore, a lower connecting rod is fixedly installed on the top rear side of the base plate. A sleeve is movably fitted onto the outer surface of the lower connecting rod. An upper connecting rod is fixedly installed on the top of the sleeve. The top of the upper connecting rod is connected to the bottom output end of the hydraulic cylinder. A demolding limiting sleeve is fixedly connected to the top of the lower connecting rod. A limiting ring is provided at the bottom of the sleeve. The limiting ring and the demolding limiting sleeve mutually limit each other to prevent the lower connecting rod from being pulled out of the sleeve. During use, when the hydraulic cylinder drives the moving mold to retract and open the mold, the sleeve initially slides on the outer surface of the lower connecting rod. When the sleeve slides to the uppermost end, it is stopped by the limiting ring and the demolding limiting sleeve. The mutual limiting mechanism can drive the lower connecting rod to move the base plate upward, which in turn drives the demolding push rod to push the ejector frame and push the molded product out of the fixed mold. This can achieve a linkage demolding function without the need for an additional electric ejector structure. During use, when the fixed mold and moving mold are closed by the hydraulic cylinder during reprocessing, the first return spring will return from the compressed state to a quick reset, causing the ejector frame to move to the bottom of the fixed mold. During the application of this device, the fixed mold can be equipped with a water cooling device as needed. The water cooling device is existing technology and can be directly used, so it will not be described in detail here.

[0012] Furthermore, the second demolding mechanism includes a sliding rail frame, which is fixedly installed in the middle of the rear side of the forming table. A slide block is slidably connected inside the sliding rail frame. A second return spring is fixedly installed in the middle of the side of the slide block near the forming table. The front end of the second return spring is fixedly connected to the rear side of the forming table. A top frame is fixedly installed on the top of the slide block. Push rods are fixedly installed at both ends of the top frame. A pusher is fixedly installed at the front end of the push rod. The pusher is used to push the product after demolding onto the conveyor belt. The linkage mechanism is arranged on both sides of the sliding rail frame.

[0013] Furthermore, the linkage mechanism includes a side frame, a first gear, and a first rack. The side frame is fixedly installed on both sides of the back of the base plate. The first rack is fixedly connected to both sides of the slide block. A fixed plate is fixedly installed on the side of the side frame away from the forming table. A second rack is fixedly installed at the lower end of the fixed plate on the side away from the forming table. The first gear is rotatably connected to the middle of both sides of the sliding rail frame. The first gear and the first rack are meshed. A second gear is fixedly connected to the outer side of the first gear. The second gear and the second rack are meshed. In the initial state during use, since the second rack is installed at the lower end of the fixed plate, there is no second rack at the top of the fixed plate. At this time, during the initial rise... In the initial stage, the second return spring resets, causing the slide to move away from the forming table. At this time, the pusher moves away from the top of the fixed mold to avoid obstructing mold closing. During the demolding stage, when the hydraulic cylinder retracts, causing the moving mold to move upward, the base plate moves the side frame and fixed plate upward. At this time, the second rack and the second gear are not in contact, and the slide and pusher do not work. The limiting ring and the demolding limiting sleeve mutually limit each other, first causing the lower connecting rod to pull the base plate upward. After the base plate moves upward, the hydraulic cylinder continues to move, which can further drive the base plate upward. The upward movement of the base plate can drive the second rack to drive the second gear to drive the first gear to drive the first rack to move. The diameter of the second gear is set to a smaller diameter, and the diameter of the first gear is set to a larger diameter. Since the second gear and the first gear are coaxially fixed, they have the same angular velocity. According to the calculation principle of linear velocity, within the same rotation period, the first gear with a larger radius can produce a larger linear velocity and arc length displacement at its pitch circle. Therefore, by using the radius difference of this gear set, the linear displacement of the power input end can be significantly amplified, thereby driving the slide forward to move the pusher frame faster and over a longer distance. It can better drive the slide forward to move the pusher frame. During this period, when the demolded product is completely pushed out of the fixed mold, the pusher frame and the upper side of the molded product come into contact. As it moves upward, the pusher frame moves forward in sync, thus pushing the product onto the conveyor belt before the top pusher frame and the bottom of the pusher frame come into contact, achieving automatic demolding. At the same time, it avoids the phenomenon of jamming when the pusher frame and the top pusher frame move against each other. Furthermore, the connecting rods of the sleeve are interlocked and can reserve a certain amount of space for movement, avoiding mutual collision when the mold is closed.

[0014] Furthermore, a guide groove is provided on the front side of the fixed mold, and the guide groove is inclined downward toward the conveyor belt.

[0015] Furthermore, support rods are fixedly installed at both ends of the top rear side of the forming table, and support guides are fixedly installed at the upper ends of the support rods. The fixing plate is slidably connected to the inside of the support guides.

[0016] Compared with the prior art, the beneficial effects of the present invention are: Firstly, in this invention, during the application of this technical solution, the first demolding mechanism is linked to the output end of the hydraulic cylinder, allowing the demolding operation to be completed synchronously with the mold opening and closing actions, eliminating the need to wait for an additional demolding start signal. Secondly, by setting a sleeve-and-lower connecting rod linkage, space is reserved for the initial stages of mold closing and opening, ensuring that the mold closing process is not interfered with by the demolding structure. Thirdly, by setting the engagement timing of the second rack and second gear, the material pushing action can be initiated only after the parts have completely detached from the fixed mold, avoiding jamming caused by the material pusher prematurely contacting the parts, ensuring a smooth transition between demolding and material pushing actions, and accelerating the overall production pace.

[0017] Secondly, in this invention, during the application of this technical solution, a linkage mechanism connects the first and second demolding mechanisms, allowing demolding and material pushing actions to be completed using the same power source during use. This eliminates the need for a separate electro-hydraulic or pneumatic demolding system, as well as a separate electrical control system for product handling. Furthermore, the inclusion of return springs in conjunction with the actions of each mechanism ensures automatic reset of all components during use, eliminating the need for an additional reset drive structure. These designs reduce the number of power sources and control systems required, lowering manufacturing costs and installation / commissioning difficulty. They also reduce the number of electrical and pneumatic components, thus reducing the workload of daily maintenance. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure viewed from below in this invention; Figure 3 This is a side view of the structure in this invention; Figure 4 This is a schematic diagram of the rear view structure in this invention; Figure 5 This is a schematic diagram of the first demolding mechanism, the forming table, and the conveyor belt in this invention. Figure 6 In this invention Figure 4 A magnified structural diagram at point A; Figure 7 This is a side view of the first demolding mechanism in this invention. Figure 8 This is a front view schematic diagram of the first demolding mechanism in this invention.

[0019] In the diagram: 1. Base; 2. Support frame; 3. Molding table; 4. Top bracket; 5. Hydraulic cylinder; 6. Demolding device; 61. First demolding mechanism; 611. Fixed sleeve; 612. First return spring; 613. Base plate; 614. Demolding push rod; 615. Push frame; 616. Lower connecting rod; 617. Sleeve; 618. Upper connecting rod; 619. Demolding limit sleeve; 6110. Limiting ring; 62. Second demolding mechanism; 621. Sliding rail; 622. Slide block; 623. Second return spring 624. Top frame; 625. Push rod; 626. Pusher frame; 63. Linkage mechanism; 631. Side frame; 632. First gear; 633. First rack; 634. Fixed plate; 635. Second rack; 636. Second gear; 7. Moving mold; 8. Fixed mold; 9. Conveyor frame; 10. Conveyor belt; 11. Injection pipe; 12. Mounting flange; 13. Electric heating anti-condensation component; 131. Insulation jacket; 132. Heating wire; 14. Guide chute; 15. Support rod; 16. Support guide frame. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1 to 8 In this embodiment of the invention, a die-casting forming device for aluminum alloy parts includes a base 1, a support frame 2 fixedly installed on the top of the base 1, a forming platform 3 fixedly installed on the top of the support frame 2, a top bracket 4 fixedly installed on the top of the forming platform 3, a hydraulic cylinder 5 fixedly installed on the top of the top bracket 4, a moving mold 7 fixedly installed at the bottom output end of the hydraulic cylinder 5, a fixed mold 8 fixedly installed on the forming platform 3, the fixed mold 8 being located directly below the moving mold 7, and a demolding device 6 provided on the rear side of the forming platform 3, the demolding end of the demolding device 6 being movably connected to the interior of the fixed mold 8; The demolding device 6 includes a first demolding mechanism 61, a second demolding mechanism 62, and a linkage mechanism 63. The first demolding mechanism 61 is located at the bottom of the forming table 3, and its demolding end is movable within the fixed mold 8. The second demolding mechanism 62 is fixedly installed on the rear side of the forming table 3. The linkage mechanism 63 is located on both sides of the second demolding mechanism 62. The second demolding mechanism 62 is connected to the first demolding mechanism 61 via the linkage mechanism 63. The first demolding mechanism 61 is linked to the output end of the hydraulic cylinder 5. By setting the demolding device 6 to be linked to the output end of the hydraulic cylinder 5, the demolding operation can be completed synchronously with the action of the hydraulic cylinder 5 during use, eliminating the need for an additional independent demolding power system, reducing the number of power sources required for the equipment, and lowering the manufacturing cost of the equipment. When the hydraulic cylinder 5 is working, it pushes the moving mold 7 downward to close with the fixed mold 8 on the forming table 3, completing the die casting of the aluminum alloy parts. After the die casting is completed, the hydraulic cylinder 5 drives the moving mold 7 upward to open the mold. At this time, the first demolding mechanism 61, which is linked to the output end of the hydraulic cylinder 5, starts to move. Its demolding end moves in the fixed mold 8 to eject the formed parts. At the same time, the linkage mechanism 63 transmits the action of the first demolding mechanism 61 to the second demolding mechanism 62, so that the second demolding mechanism 62 cooperates with the first demolding mechanism 61 to complete the demolding operation. The entire demolding process does not require manual intervention or separate control of each demolding-related structure, which simplifies the operation process and reduces labor costs. At the same time, through the linkage of each mechanism, the demolding action is more orderly, avoiding the possible action errors that may occur when controlling each mechanism separately, ensuring the smooth progress of the demolding process, and further improving production efficiency.

[0022] Please see Figures 1-5 A conveyor frame 9 is fixedly installed on the front side of the forming table 3. A conveyor belt 10 is rotatably connected to the inner side of the conveyor frame 9. A motor is installed on one side of the conveyor frame 9, which controls the rotation of the conveyor belt 10 within the conveyor frame 9. By setting up the conveyor frame 9, the conveyor belt 10, and the motor in coordination, the aluminum alloy parts can be automatically transported after forming, eliminating the need for manual handling of parts, reducing manual operation steps, and lowering labor intensity. After the demolding device 6 completes the demolding operation of the parts, the parts will fall onto the conveyor belt 10. At this time, the motor on one side of the conveyor frame 9 is started, and the motor controls the conveyor belt 10 to rotate within the conveyor frame 9. During the rotation of the conveyor belt 10, the parts on its surface will move synchronously, transporting the parts from near the forming table 3 to the next processing step. No additional manual handling or other conveying equipment is required, simplifying the production process, avoiding potential damage to parts during manual handling, reducing labor costs, making the entire production process more seamless, and improving overall production efficiency.

[0023] Please see Figures 1-5An injection pipe 11 is fixedly installed at the bottom of the fixed mold 8. An installation flange 12 is fixedly installed at the inlet end of the injection pipe 11. The top outlet end of the injection pipe 11 passes through and connects to the inside of the fixed mold 8. An electrothermal anti-solidification component 13 is installed at the top of the injection pipe 11. By combining the injection pipe 11 with the installation flange 12 and the electrothermal anti-solidification component 13, the feeding and conveying of molten aluminum alloy can be smoothly completed during use. The installation flange 12 allows for quick connection to external feeding equipment, enabling the material to smoothly enter the injection pipe 11 and then be conveyed into the fixed mold 8 through the top of the pipe to complete the filling operation. The electrothermal anti-solidification component 13 at the top of the pipe continuously controls the temperature at the outlet, delaying the cooling and solidification of the molten aluminum alloy, preventing material accumulation and blockage inside the pipe, ensuring continuous material conveying without frequent shutdowns to clear blockages, and maintaining a consistent die-casting filling rhythm, reducing production stoppages caused by feeding interruptions.

[0024] Please see Figures 1-5 and Figure 7 The electrothermal anti-solidification component 13 includes an insulating jacket 131, which is fixedly connected to the outer surface of the top end of the injection pipe 11. An electric heating wire 132 is fixedly installed inside the insulating jacket 131, and the inner side of the electric heating wire 132 is in contact with the injection pipe 11. An insulation layer is provided on the surface of the injection pipe 11. By setting up the electrothermal anti-solidification component 13, in conjunction with the insulating jacket 131, the electric heating wire 132, and the insulation layer, comprehensive temperature protection can be provided for the top end of the injection pipe 11 during use, ensuring that the molten aluminum alloy does not solidify due to cooling during transport. The insulating jacket 131, wrapped around the outer surface of the top end of the injection pipe 11, reduces heat loss from the inside of the pipe. The electric heating wire 132, fixed inside the insulating jacket 131 and in contact with the injection pipe 11, can directly heat the pipe, maintaining a suitable internal temperature and preventing the molten aluminum alloy from solidifying and accumulating at the top and inside of the pipe. The insulation layer on the surface of the injection pipe 11 further enhances the insulation effect, reduces heat loss, and improves the heating efficiency of the heating wire 132. It eliminates the need to frequently increase the power of the heating wire 132, reducing energy consumption. At the same time, it avoids downtime for cleaning due to pipe blockage, ensures the continuity of feeding operations, reduces production interruptions, and also avoids material waste caused by blockage, reducing material loss during the production process.

[0025] Please see Figures 1-5The first demolding mechanism 61 includes a fixed sleeve 611, which is fixedly installed at the four corners of the bottom of the molding table 3. A first return spring 612 is fixedly connected to the lower end of the fixed sleeve 611. A base plate 613 is fixedly installed at the bottom of the first return spring 612. A demolding push rod 614 is fixedly installed at the four corners of the top of the base plate 613. The top of the demolding push rod 614 extends through the molding table 3 into the fixed mold 8. An ejector frame 615 is fixedly connected to the end of the demolding push rod 614 located in the fixed mold 8. The ejector frame 615 moves within the fixed mold 8 and is sleeved outside the output end of the injection pipe 11. By setting various components inside the first demolding mechanism 61 to cooperate with each other, the lifting action of the hydraulic cylinder 5 can drive the entire structure to complete the ejection and demolding work during use. The sleeve 611 can regulate and limit the range of motion of the internal components. The first return spring 612 can generate elastic extrusion force when the structure is under force. The base plate 613 changes position according to the force state, thereby driving multiple sets of demolding push rods 614 to perform lifting and lowering actions synchronously. Relying on the demolding push rods 614, the ejector frame 615 moves smoothly inside the fixed mold 8. The ejector frame 615 moves around the outside of the material outlet position of the injection pipe 11, without obstructing the normal feeding operation. After the part ejection operation is completed, the elastic force generated by the first return spring 612 can drive all components to return to their original positions. There is no need to add an additional drive structure to control the component reset, which simplifies the overall drive layout and allows the initial state to be quickly restored after each demolding operation, which is convenient for the next round of die casting processing.

[0026] Please see Figures 3-8A lower connecting rod 616 is fixedly installed on the top rear side of the base plate 613. A sleeve 617 is movably fitted on the outer surface of the lower connecting rod 616. An upper connecting rod 618 is fixedly installed on the top of the sleeve 617. The top of the upper connecting rod 618 is connected to the bottom output end of the hydraulic cylinder 5. A demolding limiting sleeve 619 is fixedly connected to the top of the lower connecting rod 616. A limiting ring 6110 is provided at the bottom of the sleeve 617. The limiting ring 6110 and the demolding limiting sleeve 619 limit each other to prevent the lower connecting rod 616 from being pulled out of the sleeve 617. By setting the lower connecting rod 616, the sleeve 617 and the upper connecting rod 618 to cooperate with each other, the power of the hydraulic cylinder 5 can be accurately transmitted to the base plate 613 during use, realizing the linkage operation of the first demolding mechanism 61 and the hydraulic cylinder 5. The upper connecting rod 618 is connected to the output end of the hydraulic cylinder 5 and can move synchronously with the lifting and lowering of the hydraulic cylinder 5. The sleeve 617 is fitted on the outer surface of the lower connecting rod 616 and can slide flexibly along the lower connecting rod 616. When the hydraulic cylinder 5 drives the moving mold 7 to close and move downward, the sleeve 617 moves downward synchronously with the upper connecting rod 618. At this time, the limiting ring 6110 and the demolding limiting sleeve 619 do not form a limit, and the base plate 613 remains stationary, which will not affect the die casting operation. When the hydraulic cylinder 5 drives the moving mold 7 to open and move upward, the sleeve 617 moves upward synchronously with the upper connecting rod 618 until the limiting ring 6110 and the demolding limiting sleeve 619 at the top of the lower connecting rod 616 engage and limit each other, thereby driving the lower connecting rod 616 and the base plate 613 to move upward synchronously, driving the demolding push rod 614 to complete the ejection action. The combination of the demolding limit sleeve 619 and the limit ring 6110 prevents the lower connecting rod 616 from being pulled out of the sleeve 617, ensuring the stability of power transmission. No additional linkage control structure is required; precise power transmission can be achieved through mechanical cooperation, simplifying the structural layout. At the same time, it ensures precise coordination between demolding action and mold opening and closing action, avoiding any disconnection of actions.

[0027] Please see Figures 4-8The second demolding mechanism 62 includes a sliding rail frame 621, which is fixedly installed in the middle of the rear side of the molding table 3. A slide block 622 is slidably connected inside the sliding rail frame 621. A second return spring 623 is fixedly installed in the middle of the side of the slide block 622 near the molding table 3. The front end of the second return spring 623 is fixedly connected to the rear side of the molding table 3. A top frame 624 is fixedly installed on the top of the slide block 622. Push rods 625 are fixedly installed at both ends of the top frame 624. A pusher frame 626 is fixedly installed at the front end of the push rods 625. The pusher frame 626 is used to demold the molded part. The product is then pushed onto the conveyor belt 10. The linkage mechanism 63 is set on both sides of the sliding rail frame 621. By setting the components of the second demolding mechanism 62, they cooperate with each other to complete the product pushing operation after demolding in use. The sliding rail frame 621 provides stable sliding support for the slide block 622, allowing the slide block 622 to slide flexibly along its interior. One end of the second return spring 623 is connected to the slide block 622 and the other end is fixed to the rear side of the forming table 3. It can generate elastic force when the slide block 622 moves, which facilitates the slide block 622 to quickly return to its original position after completing the action. The top frame 624 on the top of the slide block 622 is connected to the push rods 625 on both sides, which can drive the push rods 625 to move synchronously. The pusher 626 at the front end of the push rod 625 can accurately connect with the demolded product. When the linkage mechanism 63 transmits power to drive the slide block 622 to slide forward, the pusher 626 moves forward synchronously with the push rod 625, smoothly pushing the demolded product in the fixed mold 8 onto the conveyor belt 10. There is no need for manual pushing of the product, nor is there a need for additional push drive equipment. The linkage mechanism 63 on both sides of the sliding rail frame 621 can realize the power linkage between the second demolding mechanism 62 and the first demolding mechanism 61, so that the pushing action and the ejection demolding action are coordinated. During the movement of the slide block 622, the second return spring 623 can help it quickly return to the initial position after completing the pushing, preparing for the next pushing operation, simplifying the operation process, reducing manual intervention, and preventing the product from accumulating near the fixed mold 8 after demolding and affecting subsequent processing.

[0028] Please see Figures 5-8The linkage mechanism 63 includes a side frame 631, a first gear 632, and a first rack 633. The side frame 631 is fixedly installed on both sides of the back of the base plate 613. The first rack 633 is fixedly connected to both sides of the slide block 622. A fixing plate 634 is fixedly installed on the side of the side frame 631 away from the molding table 3. A second rack 635 is fixedly installed at the lower end of the side of the fixing plate 634 away from the molding table 3. The first gear 632 is rotatably connected to the middle of both sides of the sliding rail frame 621. The first gear 632 and the first rack 633 are meshed. A second gear 636 is fixedly connected to the outside of the first gear 632. The second gear 636 and the second rack 635 are meshed. By setting the components of the linkage mechanism 63 to cooperate with each other, the first demolding mechanism 61 and the second demolding mechanism 62 can be synchronously linked during use, and the lifting power of the base plate 613 is transmitted to the slide block 622 without the need for an additional independent power source to drive the second demolding mechanism 62. The side frame 631 rises and falls synchronously with the base plate 613, thereby driving the fixed plate 634 and the second rack 635 to move together. When the second rack 635 meshes with the second gear 636, it can drive the second gear 636 to rotate. Since the second gear 636 is fixedly connected to the first gear 632, the first gear 632 rotates synchronously. Furthermore, since the first gear 632 meshes with the first racks 633 on both sides of the slide block 622, it can drive the slide block 622 to slide along the sliding rail frame 621. This meshing of gears and racks can stably transmit power, ensuring that the rising and falling action of the base plate 613 is accurately converted into the forward and backward sliding of the slide block 622, thereby driving the pusher frame 626 to complete the push operation. This allows the demolding and push actions to be connected in an orderly manner, eliminating the need to control the timing of the two sets of mechanisms separately, simplifying the control process, and avoiding jamming during power transmission, ensuring the smoothness of the overall operation and reducing production stoppages caused by poor action connection.

[0029] Please see Figures 1-3 A guide chute 14 is provided on the front side of the fixed mold 8. The guide chute 14 is inclined downwards towards the conveyor belt 10. By providing a guide chute 14 on the front side of the fixed mold 8 and inclining downwards towards the conveyor belt 10, a stable guiding path is provided for the demolded product during use. When the pusher 626 pushes the molded product out of the fixed mold 8, the product will slide along the inclined direction of the guide chute 14. No additional guiding components are needed to accurately guide the product towards the conveyor belt 10. This inclined design can use the product's own weight to assist the sliding, reducing the possibility of jamming or deviation during the pushing process. It ensures that the product can fall smoothly and accurately onto the conveyor belt 10, preventing the product from falling outside the conveyor belt 10 and causing damage. It also eliminates the need for manual adjustment of the product position, reducing manual intervention. At the same time, it makes the pushing operation smoother, ensures the continuity of product conveying, and connects well with subsequent automatic conveying processes, reducing production interruptions caused by product deviation and reducing product loss.

[0030] Please see Figures 1-5 Both ends of the top rear side of the forming table 3 are fixedly installed with support rods 15. The upper end of the support rods 15 is fixedly installed with a support guide 16. The fixed plate 634 is slidably connected to the inside of the support guide 16. By setting the support rods 15 and the support guide 16 to form a limiting support for the fixed plate 634, the fixed plate 634 can move smoothly along the predetermined trajectory during the lifting and lowering process of the base plate 613 during use, without any position deviation. The fixed plate 634 slides inside the support guide 16, which can limit the swaying and displacement of the fixed plate 634 and ensure that the second rack 635 installed at the lower end of the fixed plate 634 always maintains a regular movement posture. This ensures that the second rack 635 and the corresponding gear can complete the meshing transmission normally and will not be hindered by the position deviation. It can also ensure that the power transmission process of the linkage mechanism 63 can continue to operate normally and avoid the normal operation of the pushing action due to the deviation of the component. At the same time, it can share the lateral force generated during the linkage operation, reduce the abnormal friction between components, and extend the normal service life of the components.

[0031] The working principle of this invention is as follows: During the processing of this device, the hydraulic cylinder 5 is activated. At this time, the hydraulic cylinder 5 pushes the moving mold 7 down to close with the fixed mold 8. The upper connecting rod 618 moves down synchronously with the hydraulic cylinder 5. The sleeve 617 slides down along the outer surface of the lower connecting rod 616. The limiting ring 6110 at the bottom of the sleeve 617 does not contact the demolding limiting sleeve 619 at the top of the lower connecting rod 616, and the base plate 613 remains stationary. The fixed sleeve 611 provides a mounting base for the first return spring 612 and also provides a guide for the demolding push rod 614. The first return spring 612 in the fixed sleeve 611 maintains its initial length, and the demolding push rod 614 and the ejector frame 615 are at the bottommost position in the fixed mold 8. When the base plate 613 is stationary, the side frame 631 and the fixed plate 634 remain stationary. The second rack 635 is not engaged with the second gear 636. The slide block 622 is positioned at the rear end of the sliding rail frame 621 under the action of the second return spring 623. The pusher frame 626 is located behind the fixed mold 8 and does not affect the closure of the moving mold 7 and the fixed mold 8. The external molten aluminum alloy conveying equipment is connected to the injection pipe 11 through the mounting flange 12, injecting the molten aluminum alloy into the cavity formed by the fixed mold 8 and the moving mold 7. The heating wire 132 inside the heat insulation jacket 131 heats the top of the injection pipe 11. The heat insulation layer on the surface of the injection pipe 11 reduces heat loss and prevents the molten aluminum alloy from solidifying and blocking the channel at the top of the injection pipe 11. The water cooling heat dissipation device installed on the fixed mold 8 cools the molten aluminum alloy in the cavity, allowing the aluminum alloy to solidify and form.

[0032] Hydraulic cylinder 5 drives moving mold 7 upward to open the mold. Upper connecting rod 618 moves upward synchronously with hydraulic cylinder 5. Sleeve 617 slides upward along the outer surface of lower connecting rod 616. When sleeve 617 slides to the uppermost end, the limiting ring 6110 at the bottom of sleeve 617 and the demolding limiting sleeve 619 at the top of lower connecting rod 616 mutually limit each other. Hydraulic cylinder 5 continues to move upward, driving base plate 613 upward through sleeve 617 and lower connecting rod 616. During the upward movement of base plate 613, the first return spring 612 in fixed sleeve 611 is compressed, which simultaneously drives four demolding push rods 614 to move upward synchronously. Demolding push rods 614 push ejector frame 615 upward inside fixed mold 8, ejecting the solidified aluminum alloy parts from the cavity of fixed mold 8. Before the ejector 615 completely ejects the aluminum alloy parts from the fixed mold 8, during the process of the fixed plate 634 moving upward synchronously with the base plate 613, the second rack 635 never contacts the second gear 636, the slide block 622 remains at the rear end position of the sliding rail frame 621, and the pusher 626 does not move, thereby avoiding the pusher 626 from prematurely contacting the parts that have not completely detached from the fixed mold 8, which could cause the parts to jam.

[0033] When the pusher 615 completely ejects the aluminum alloy parts from the fixed mold 8, the second rack 635 at the lower end of the fixed plate 634 moves to contact the second gear 636. To prevent rigid collision and jamming, the end face of the first meshing tooth of the second rack 635 is provided with an inclined guide chamfer (or the base of the second rack is equipped with an elastic floating back plate), so that the second rack 635 can smoothly cut in and complete the initial meshing with the second gear 636. Subsequently, the hydraulic cylinder 5 continues to move upward, and the base plate 613 drives the second rack 635 to move upward steadily, driving the second gear 636 to rotate. The second gear 636 is coaxially fixed with the first gear 632, and the first gear 632 meshes with the first racks 633 on both sides of the slide block 622, driving the slide block 622 to move forward along the sliding rail frame 621. When the slide block 622 moves forward, it compresses the second return spring 623, and at the same time, the top frame 624 drives the two push rods 625 to move forward synchronously. The push rods 625 drive the pusher frame 626 to move forward. After the pusher 626 contacts the upper side of the component, it continues to move forward as the hydraulic cylinder 5 moves upward, pushing the component along the guide groove 14 on the front side of the fixed mold 8 onto the conveyor belt 10 inside the conveyor frame 9. The hydraulic cylinder 5 pushes the moving mold 7 downward for the next mold closing. The upper connecting rod 618 moves downward synchronously with the hydraulic cylinder 5, and the sleeve 617 slides downward along the outer surface of the lower connecting rod 616, releasing the tension on the lower connecting rod 616. The first return spring 612 returns to its original position and pushes the base plate 613 downward. The base plate 613 drives the demolding push rod 614 and the ejector frame 615 downward, returning them to their initial positions inside the fixed mold 8. During the downward movement of the base plate 613, the second rack 635 moves downward, driving the second gear 636 and the first gear 632 to rotate in opposite directions. The second return spring 623 resets and pushes the slide block 622 to move backward along the sliding rail frame 621. The pusher frame 626 moves backward synchronously with the slide block 622, returning to the initial position behind the fixed mold 8. The motor on one side of the conveyor frame 9 drives the conveyor belt 10 to rotate, transporting the aluminum alloy parts on the conveyor belt 10 to the next process. The support rod 15 and the support guide frame 16 provide guidance and support for the fixed plate 634, ensuring the stability of the fixed plate 634 during movement.

[0034] This technical solution utilizes the linkage design of the first demolding mechanism 61, the second demolding mechanism 62, and the linkage mechanism 63 with the output end of the hydraulic cylinder 5. All demolding and material handling actions are driven by the opening and closing of the hydraulic cylinder 5, eliminating the need for an independent electro-hydraulic or pneumatic demolding system and a separate electrical control system for product handling. This reduces the number of power sources and control systems, lowers manufacturing costs and installation / commissioning difficulty, and reduces the number of electrical and pneumatic components, thus reducing daily maintenance workload and avoiding production line downtime caused by the failure of multiple independent systems. All actions are achieved through mechanical linkage, and the timing of actions is determined by the coordination relationship of the mechanical structure, preventing timing deviations in the coordinated operation of multiple systems and reducing product damage and production safety accidents. The sleeve 617 and the lower connecting rod 616 have a movable structure that provides space for movement during the initial stages of mold closing and opening, preventing mutual contact between structures during mold closing. The meshing timing design of the second rack 635 and the second gear 636 avoids the problem of parts jamming caused by premature movement of the pusher 626. The diameter difference between the second gear 636 and the first gear 632 amplifies the moving speed of the pusher 626, ensuring that the pusher 626 can reach the designated position to complete the push action in a timely manner while the ejector 615 completes the demolding action. The guide chute 14 ensures that the parts can accurately fall into the conveyor belt 10, and the electric heating anti-solidification component 13 prevents the molten aluminum alloy from solidifying and blocking the top of the injection pipe 11, ensuring the continuous operation of the injection process. The conveyor belt 10 enables automatic product transport, eliminating the need for manual product handling.

Claims

1. A die-casting forming apparatus for aluminum alloy parts, characterized in that, Includes a base (1), a support frame (2) is fixedly installed on the top of the base (1), a forming platform (3) is fixedly installed on the top of the support frame (2), a top bracket (4) is fixedly installed on the top of the forming platform (3), a hydraulic cylinder (5) is fixedly installed on the top of the top bracket (4), a moving mold (7) is fixedly installed at the bottom output end of the hydraulic cylinder (5), a fixed mold (8) is fixedly installed on the forming platform (3), the fixed mold (8) is located directly below the moving mold (7), a demolding device (6) is provided on the rear side of the forming platform (3), and the demolding end of the demolding device (6) is movably connected to the interior of the fixed mold (8); The demolding device (6) includes a first demolding mechanism (61), a second demolding mechanism (62), and a linkage mechanism (63). The first demolding mechanism (61) is located at the bottom of the molding platform (3), and the demolding end of the first demolding mechanism (61) is movable within the fixed mold (8). The second demolding mechanism (62) is fixedly installed on the rear side of the molding platform (3). The linkage mechanism (63) is located on both sides of the second demolding mechanism (62). The second demolding mechanism (62) is connected to the first demolding mechanism (61) through the linkage mechanism (63). The first demolding mechanism (61) is linked to the output end of the hydraulic cylinder (5).

2. The die-casting apparatus for aluminum alloy parts according to claim 1, characterized in that, A conveyor frame (9) is fixedly installed on the front side of the forming table (3). A conveyor belt (10) is rotatably connected to the inner side of the conveyor frame (9). A motor is provided on one side of the conveyor frame (9), which is used to control the conveyor belt (10) to rotate and be conveyed within the conveyor frame (9).

3. The die-casting apparatus for aluminum alloy parts according to claim 2, characterized in that, An injection pipe (11) is fixedly installed at the bottom of the fixed mold (8). An installation flange (12) is fixedly installed at the input end of the injection pipe (11). The top output end of the injection pipe (11) passes through the fixed mold (8) and is connected. An electrothermal anti-coagulation component (13) is provided at the top of the injection pipe (11).

4. The die-casting apparatus for aluminum alloy parts according to claim 3, characterized in that, The electrothermal anti-condensation component (13) includes an insulating jacket (131), which is fixedly connected to the top outer surface of the injection pipe (11). An electric heating wire (132) is fixedly installed on the inner side of the insulating jacket (131). The inner side of the electric heating wire (132) is in contact with the injection pipe (11), and the surface of the injection pipe (11) is provided with an insulating layer.

5. The die-casting apparatus for aluminum alloy parts according to claim 4, characterized in that, The first demolding mechanism (61) includes a fixed sleeve (611), which is fixedly installed at the four corners of the bottom of the molding table (3). A first return spring (612) is fixedly connected to the lower end of the fixed sleeve (611). A base plate (613) is fixedly installed at the bottom of the first return spring (612). A demolding push rod (614) is fixedly installed at the four corners of the top of the base plate (613). The top of the demolding push rod (614) extends through the molding table (3) into the fixed mold (8). The end of the demolding push rod (614) located in the fixed mold (8) is fixedly connected to a pusher (615). The pusher (615) moves within the fixed mold (8) and is sleeved on the outside of the output end of the injection pipe (11).

6. The die-casting apparatus for aluminum alloy parts according to claim 5, characterized in that, A lower connecting rod (616) is fixedly installed on the top rear side of the base plate (613). A sleeve (617) is fitted on the outer surface of the lower connecting rod (616). An upper connecting rod (618) is fixedly installed on the top of the sleeve (617). The top of the upper connecting rod (618) is connected to the bottom output end of the hydraulic cylinder (5). A demolding limiting sleeve (619) is fixedly connected to the top of the lower connecting rod (616). A limiting ring (6110) is provided at the bottom of the sleeve (617). The limiting ring (6110) and the demolding limiting sleeve (619) limit each other to prevent the lower connecting rod (616) from being pulled out of the sleeve (617).

7. The die-casting apparatus for aluminum alloy parts according to claim 1, characterized in that, The second demolding mechanism (62) includes a sliding rail frame (621), which is fixedly installed in the middle of the rear side of the forming table (3). A slide seat (622) is slidably connected inside the sliding rail frame (621). A second return spring (623) is fixedly installed in the middle of the side of the slide seat (622) near the forming table (3). The front end of the second return spring (623) is fixedly connected to the rear side of the forming table (3). A top frame (624) is fixedly installed on the top of the slide seat (622). Push rods (625) are fixedly installed at both ends of the top frame (624). A pusher frame (626) is fixedly installed at the front end of the push rod (625). The pusher frame (626) is used to push the product after demolding onto the conveyor belt (10). The linkage mechanism (63) is set on both sides of the sliding rail frame (621).

8. The die-casting apparatus for aluminum alloy parts according to claim 7, characterized in that, The linkage mechanism (63) includes a side frame (631), a first gear (632), and a first rack (633). The side frame (631) is fixedly installed on both sides of the back of the base plate (613). The first rack (633) is fixedly connected to both sides of the slide block (622). A fixing plate (634) is fixedly installed on the side of the side frame (631) away from the forming table (3). A second rack (635) is fixedly installed at the lower end of the side of the fixing plate (634) away from the forming table (3). The first gear (632) is rotatably connected to the middle of both sides of the sliding rail frame (621). The first gear (632) and the first rack (633) are meshed. A second gear (636) is fixedly connected to the outside of the first gear (632). The second gear (636) and the second rack (635) are meshed.

9. The die-casting apparatus for aluminum alloy parts according to claim 8, characterized in that, The front side of the fixed mold (8) is provided with a guide groove (14), which is inclined downward toward the conveyor belt (10).

10. The die-casting apparatus for aluminum alloy parts according to claim 9, characterized in that, The top rear ends of the forming platform (3) are fixedly installed with support rods (15), and the upper end of the support rods (15) is fixedly installed with a support guide (16). The fixing plate (634) is slidably connected to the inside of the support guide (16).

Images