A pouring and exhausting integrated device for high-efficiency V-method vacuum aluminum casting sound box

Abstract

This utility model relates to the field of metal casting technology, and more particularly to an integrated casting and venting device for high-efficiency V-process vacuum-cast aluminum speaker boxes. The integrated casting and venting device for high-efficiency V-process vacuum-cast aluminum speaker boxes includes a base, a lower mold, a support plate, a sliding block, an upper mold, a casting machine, and an injection pipe. The lower mold is fixedly connected to the top of the base, and the support plate is fixedly connected to the rear side of the top of the base. Limiting grooves are formed on both the front and rear sides of the middle of the support plate. The sliding block is slidably connected to the support plate through the limiting grooves. The upper mold is fixedly connected to the front side of the sliding block, and the casting machine is installed on the top of the sliding block. The injection pipe is connected and communicates with the bottom of the casting machine. This utility model, through the sliding connection structure between the venting pipe and the sleeve, and in conjunction with a controller, achieves synchronous venting and mold closing, achieving continuous venting before the mold is fully closed, ensuring the vacuum degree of the cavity, and effectively improving the density of the internal structure and surface quality of the casting.

Description

Technical Field

[0001] This utility model relates to the field of metal casting technology, and in particular to an integrated casting and venting device for high-efficiency V-process vacuum cast aluminum speaker boxes. Background Technology

[0002] V-process vacuum casting is an advanced technology widely used in the field of precision metal casting. Its core lies in utilizing a vacuum environment to eliminate gas from the mold cavity, thereby effectively reducing defects such as porosity and shrinkage in the casting, and improving the density and surface quality of the casting. In the field of audio equipment manufacturing, due to the high requirements for structural strength, acoustic performance, and appearance precision of speaker enclosures, the use of aluminum alloy materials and the V-process vacuum casting has become an important trend.

[0003] Currently, the manufacturing process of V-process vacuum-cast aluminum speaker boxes commonly employs a separate casting and evacuation structure. This means that after the mold closes, a separate evacuation device is used to evacuate the cavity before the pouring channel is opened to inject molten metal. This method is not only cumbersome and time-consuming, but the vacuum state is also easily disrupted during the switching between evacuation and pouring, affecting the quality of the casting. Furthermore, traditional mold opening and closing structures often rely on hydraulic or pneumatic drives, resulting in slow response speeds and poor positioning accuracy. This leads to incomplete mold closure and insufficient sealing, resulting in defects such as poor airtightness and inadequate filling.

[0004] Therefore, it is necessary to design an integrated casting and venting device for high-efficiency V-process vacuum-cast aluminum speaker boxes to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to overcome the shortcomings of the commonly used operation method in the manufacturing process of V-process vacuum aluminum casting speaker boxes, which is not only cumbersome and time-consuming, but also prone to vacuum state destruction and affecting casting quality during the switching between evacuation and pouring, this utility model provides an integrated pouring and venting device for high-efficiency V-process vacuum aluminum casting speaker boxes.

[0006] The technical solution is: an integrated casting and venting device for high-efficiency V-process vacuum-cast aluminum speaker boxes, comprising a base, a lower mold, a support plate, a sliding block, an upper mold, a casting machine, an injection pipe, a valve, a top plate, a contact plate, a controller, and a vacuum assembly. The lower mold is fixedly connected to the top of the base. The bottom of the lower mold has a raised forming part, and the upper outer periphery of the lower mold has a groove. A support plate is fixedly connected to the rear side of the top of the base. Limiting grooves are formed on both the front and rear sides of the middle of the support plate. A sliding block is slidably connected to the support plate through the limiting grooves. The upper mold is fixedly connected to the front side of the sliding block. A protrusion is formed on the bottom outer periphery of the upper mold. The protrusion... The groove on the lower mold is slidably fitted, and a casting machine is installed on the top of the sliding block. The casting machine is located directly above the upper mold. The bottom of the casting machine is connected to and connected to an injection pipe. The injection pipe passes through the top of the upper mold and extends to its bottom. A valve is installed on the upper part of the injection pipe. A top plate is slidably connected inside the lower mold. The top plate has a matching groove corresponding to the bottom forming part inside the lower mold. Contact plates extending upward are fixedly connected to the left and right sides of the bottom of the top plate. Both contact plates are slidably connected to the inside of the lower mold. A controller is installed on the front side of the lower mold. An air extraction component is set between the inside of the base and the inside of the lower mold. The casting machine is electrically connected to the controller.

[0007] Furthermore, the air extraction assembly includes an air extractor, connecting pipes, sleeves, valve two, and an air extraction pipe. The air extractor is installed inside the base. The front left and right sides of the air extractor are each connected to and communicate with a connecting pipe. The two connecting pipes extend upward to the front of the lower mold and are each connected to and communicate with a sleeve. Both sleeves extend rearward into the interior of the lower mold. Valve two is installed on the front side of both sleeves, and valve two is located on the front side of the lower mold. The rear top of both sleeves are slidably connected to and communicate with an air extraction pipe. The rear sides of both air extraction pipes extend into the interior of the top plate and communicate with the matching slide groove, and their end openings are adapted to the shape of the matching slide groove. The air extractor is electrically connected to the controller.

[0008] Furthermore, it also includes guide rods and return springs. Inside the lower mold, at the position corresponding to the bottom of the two contact plates, two guide rods are fixedly connected. Each contact plate has a groove at the bottom that matches the corresponding guide rod. Each guide rod is wrapped with a return spring. Each return spring is located between the bottom of the corresponding contact plate and the bottom of the lower mold. Under the action of the return spring, the top of the two contact plates protrudes upward, and the protrusion height is higher than the top plane of the lower mold.

[0009] Furthermore, it also includes a temperature detector and an indicator light. The temperature detector and indicator light are respectively installed on the front side of the lower mold, and the temperature detector and indicator light are electrically connected to the controller.

[0010] Furthermore, it also includes a servo motor, a lead screw, and a lifting plate. A servo motor with its output shaft facing downwards is mounted on the top of the support plate. A lead screw is fixedly connected to the output shaft of the servo motor. The lead screw has threads and is connected to the lifting plate through the threads. The front side of the lifting plate is fixedly connected to the rear side of the sliding block. The servo motor is electrically connected to the controller.

[0011] Furthermore, it also includes magnetic block one and magnetic block two. Magnetic block one is provided at the bottom of both contact plates, and magnetic block two is provided at the bottom of the lower mold at the position corresponding to the two contact plates. Magnetic block one and magnetic block two in the same group are located between the corresponding two guide rods, and the opposite surfaces of magnetic block one and magnetic block two have the same magnetic poles, which generate a repulsive effect.

[0012] Beneficial effects: 1. By setting a sliding connection structure between the sliding air extraction pipe and the sleeve, and cooperating with the controller to realize the synchronous operation of air extraction and mold closure, the present invention achieves the effect of continuous air extraction before the mold is completely closed, ensuring the vacuum degree of the cavity, and effectively improving the density of the internal structure and surface quality of the casting.

[0013] 2. This utility model uses a servo motor to drive a lead screw to move the lifting plate up and down, and in conjunction with a sliding block and a limiting groove structure, it achieves stable closing and separation between the upper and lower molds, thereby improving the mold opening and closing accuracy and the degree of automation.

[0014] 3. This utility model, through the cooperation of the air extraction component and the sliding air extraction pipe, continuously extracts air from the cavity during the mold closing process, forming a stable vacuum environment, thereby reducing the porosity defects in the casting and improving the product molding quality.

[0015] 4. This utility model achieves buffering and limiting of the top plate during the mold closing process by using the repulsive action between magnetic block one and magnetic block two. Combined with the return spring and contact plate structure, it achieves the effect of automatically resetting and ejecting the casting, improving production efficiency and system stability. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the servo motor, lead screw, and lifting plate of this utility model.

[0018] Figure 3 This is a three-dimensional sectional view of the base, lower mold, and support plate of this utility model.

[0019] Figure 4 This is a three-dimensional sectional view of the extraction pipe, sleeve, and valve II of this utility model.

[0020] Figure 5This is a three-dimensional structural diagram of the top plate, guide rod, and return spring of this utility model.

[0021] Figure 6 This is a three-dimensional sectional view of the top plate, contact plate, and exhaust pipe of this utility model.

[0022] The meanings of the labels in the attached diagram are as follows: 1-base, 2-lower mold, 3-support plate, 4-sliding block, 5-upper mold, 6-pouring machine, 7-injection pipe, 8-valve one, 9-top plate, 10-contact plate, 11-evacuation pipe, 12-sleeve, 13-valve two, 14-connecting pipe, 15-evacuator, 16-guide rod, 17-return spring, 18-temperature detector, 19-controller, 20-indicator light, 21-servo motor, 22-lead screw, 23-lifting plate, 24-magnetic block one, 25-magnetic block two. Detailed Implementation

[0023] Example: An integrated casting and venting device for high-efficiency V-process vacuum-cast aluminum speaker boxes, such as... Figures 1-6 As shown, the system includes a base 1, a lower mold 2, a support plate 3, a sliding block 4, an upper mold 5, a casting machine 6, an injection pipe 7, a valve 8, a top plate 9, a contact plate 10, a controller 19, and an air extraction assembly. The lower mold 2 is bolted to the top of the base 1. The bottom of the lower mold 2 has a raised molding part, and the upper outer periphery of the lower mold 2 has a groove. The support plate 3 is bolted to the rear top of the base 1. Limiting grooves are provided on the front and rear sides of the middle of the support plate 3. The support plate 3 is slidably connected to the sliding block 4 through the limiting grooves. The front side of the sliding block 4 is bolted to the upper mold 5. The bottom outer periphery of the upper mold 5 has a protrusion that slides and adapts to the groove on the lower mold 2. A casting machine 6 is installed on the top of the moving block 4. The casting machine 6 is located directly above the upper mold 5. A molding tube 7 is connected to the bottom of the casting machine 6. The molding tube 7 passes through the top of the upper mold 5 and extends to its bottom. A valve 8 is installed on the upper part of the molding tube 7. A top plate 9 is slidably connected inside the lower mold 2. The top plate 9 has an adaptation groove corresponding to the bottom forming part inside the lower mold 2. The left and right sides of the bottom of the top plate 9 are respectively connected to upward-extending contact plates 10 by bolts. Both contact plates 10 are slidably connected to the inside of the lower mold 2. A controller 19 is installed on the front side of the lower mold 2. An air extraction component is set between the inside of the base 1 and the inside of the lower mold 2. The casting machine 6 is electrically connected to the controller 19.

[0024] like Figures 2-6As shown, the air extraction assembly includes an air extractor 15, a connecting pipe 14, a sleeve 12, a second valve 13, and an air extraction pipe 11. The air extractor 15 is installed inside the base 1. The front left and right sides of the air extractor 15 are each connected to and communicate with a connecting pipe 14. The two connecting pipes 14 extend upward to the front side of the lower mold 2 and are each connected to and communicate with a sleeve 12. Both sleeves 12 extend rearward into the interior of the lower mold 2. A second valve 13 is installed on the front side of both sleeves 12. Both valves 13 are located on the front side of the lower mold 2. The rear top of both sleeves 12 are slidably connected to and communicate with an air extraction pipe 11. The rear sides of both air extraction pipes 11 extend into the interior of the top plate 9 and communicate with the matching slide groove. The openings at their ends are adapted to the shape of the matching slide groove. The air extractor 15 is electrically connected to the controller 19.

[0025] like Figure 4 and Figure 5 As shown, it also includes guide rods 16, return springs 17, temperature detectors 18, and indicator lights 20. Inside the lower mold 2, at positions corresponding to the bottom of the two contact plates 10, two guide rods 16 are connected by bolts. Each contact plate 10 has a groove at its bottom that matches the corresponding guide rod 16. Each guide rod 16 is surrounded by a return spring 17. Each return spring 17 is located between the bottom of the corresponding contact plate 10 and the bottom of the lower mold 2. Under the action of the return springs 17, the tops of the two contact plates 10 protrude upwards, with the protrusion height exceeding the top plane of the lower mold 2. Temperature detectors 18 and indicator lights 20 are respectively installed on the front side of the lower mold 2. Temperature detectors 18 and indicator lights 20 are electrically connected to the controller 19.

[0026] like Figure 2 , Figure 4 and Figure 5 As shown, it also includes a servo motor 21, a lead screw 22, a lifting plate 23, a first magnetic block 24, and a second magnetic block 25. The top of the support plate 3 is equipped with a servo motor 21 with its output shaft facing downwards. The output shaft of the servo motor 21 is connected to the lead screw 22 by welding. The lead screw 22 has threads and is connected to the lifting plate 23 by the threads. The front side of the lifting plate 23 is connected to the rear side of the sliding block 4 by bolts. The servo motor 21 is electrically connected to the controller 19. The bottom of both contact plates 10 is provided with a first magnetic block 24. The bottom of the lower mold 2 is provided with a second magnetic block 25 at the corresponding position of the two contact plates 10. The first magnetic block 24 and the second magnetic block 25 of the same group are located between the corresponding two guide rods 16, and the opposite surfaces of the first magnetic block 24 and the second magnetic block 25 have the same magnetic poles, which generate a repulsive effect.

[0027] Operators can apply the corresponding technical solutions in this device to the manufacturing process of V-process vacuum aluminum casting speakers, depending on the specific circumstances.

[0028] When this device is needed to assist in the integrated operation of aluminum casting and venting, first place the entire device on a horizontal working plane, and test the power on the controller 19 and related electronic components to ensure that the temperature detector 18, indicator light 20, servo motor 21, air extractor 15 and other components are in normal working condition.

[0029] At the start of use, the operator starts the servo motor 21 through the controller 19. The output shaft of the servo motor 21 drives the lead screw 22 to rotate clockwise, which drives the lifting plate 23 to move downward along the limit slide groove on the support plate 3, thereby driving the sliding block 4 and the upper mold 5 connected to its front side to descend synchronously with the casting machine 6.

[0030] As the upper mold 5 gradually approaches the lower mold 2, the protrusions on its bottom periphery slide into the grooves on the upper periphery of the lower mold 2, ensuring the stability and sealing of the mold closure. Subsequently, the upper mold 5 continues to press down until its inner bottom surface contacts the protruding part on the top of the contact plate 10, pushing the contact plate 10 downward together.

[0031] During this process, the guide rod 16, which is fixedly connected to the bottom of the contact plate 10, slides in its groove to provide guidance. At the same time, the return spring 17 wrapped around the guide rod 16 is compressed to accumulate restoring force for the subsequent ejection action.

[0032] After the upper mold 5 is fully closed, the operator starts the vacuum pump 15 via controller 19 and opens valve 13. The vacuum path passes sequentially through connecting pipe 14 and sleeve 12 to the vacuum pipe 11, finally entering the top plate 9 and connecting with the matching groove. During mold closing, the top plate 9 is pressed down along with the contact plate 10, and the front end of the vacuum pipe 11 slides along the inner wall of sleeve 12, keeping the vacuum channel unobstructed and allowing the vacuuming operation to continue during mold closing. The matching groove in the top plate 9 fits tightly with the protruding forming part at the bottom of the lower mold 2. At this time, the two magnetic blocks reach the maximum repulsion distance, and the upper and lower molds 2 are fully closed. Then, controller 19 shuts off the vacuum pump 15 and closes valve 13, forming a complete and vacuum-sealed casting cavity, providing a stable environment for subsequent aluminum molten casting. The repulsive action between magnetic block 24 and magnetic block 25 not only provides buffer protection during mold closing but also achieves precise positioning of the top plate 9, ensuring reliable cavity sealing.

[0033] After the vacuum process is completed and the required vacuum level is reached, controller 19 controls valve 8 to open, and casting machine 6 injects molten aluminum alloy into the mold cavity through the casting pipe. During the casting process, the top plate 9 sinks further due to the pressure of the molten metal, ensuring sufficient and uniform filling. At this time, temperature detector 18 monitors the mold temperature and feeds the data back to controller 19. Controller 19 then controls indicator light 20 to illuminate to remind operators to pay attention to the temperature and avoid burns.

[0034] After pouring, the molten aluminum cools and solidifies within the mold. Temperature detector 18 continuously monitors the mold temperature and feeds the data back to controller 19. When the temperature is suitable, indicator light 20 goes out, and the operator can then remove the casting. Servo motor 21 reverses, driving lead screw 22 to rotate counterclockwise, causing upper mold 5 to rise and disengage from lower mold 2. At this time, contact plate 10 returns to its original position under the action of return spring 17, moving top plate 9 upwards as well, thereby ejecting the formed casting from lower mold 2 for easy removal.

[0035] In summary, this device, by integrating multiple functional modules such as servo drive, vacuum pumping, automatic casting, and elastic reset, achieves efficient and automated operation in the V-process vacuum casting aluminum speaker manufacturing process, significantly improving production efficiency and product yield, and has good application and promotion value.

Claims

1. An integrated casting and venting device for high-efficiency V-process vacuum-cast aluminum speaker boxes, characterized in that, The system includes a base (1), a lower mold (2), a support plate (3), a sliding block (4), an upper mold (5), a casting machine (6), an injection pipe (7), a valve (8), a top plate (9), a contact plate (10), a controller (19), and an air extraction assembly. The lower mold (2) is fixedly connected to the top of the base (1). The bottom of the lower mold (2) has a raised molding part. The upper outer periphery of the lower mold (2) has a groove. The support plate (3) is fixedly connected to the rear side of the top of the base (1). The support plate (3) has a limiting slide groove on the front and rear sides of the middle part. The support plate (3) is slidably connected to the sliding block (4) through the limiting slide groove. The upper mold (5) is fixedly connected to the front side of the sliding block (4). The bottom periphery of the upper mold (5) has a protrusion. The protrusion slides and adapts to the groove on the lower mold (2). A casting machine (6) is installed on the top. The casting machine (6) is located directly above the upper mold (5). A molding tube (7) is connected to the bottom of the casting machine (6). The molding tube (7) passes through the top of the upper mold (5) and extends to its bottom. A valve (8) is installed on the upper part of the molding tube (7). A top plate (9) is slidably connected inside the lower mold (2). The top plate (9) has a matching groove corresponding to the bottom forming part inside the lower mold (2). The left and right sides of the bottom of the top plate (9) are fixedly connected to upward-extending contact plates (10). Both contact plates (10) are slidably connected to the inside of the lower mold (2). A controller (19) is installed on the front side of the lower mold (2). An air extraction component is set between the inside of the base (1) and the inside of the lower mold (2). The casting machine (6) is electrically connected to the controller (19).

2. The integrated casting and venting device for a high-efficiency V-process vacuum-cast aluminum speaker box according to claim 1, characterized in that, The air extraction assembly includes an air extractor (15), connecting pipes (14), sleeves (12), valve two (13), and an air extraction pipe (11). The air extractor (15) is installed inside the base (1). The air extractor (15) is connected to and communicates with a connecting pipe (14) on each of the left and right sides of the front side. The two connecting pipes (14) extend upward to the front side of the lower mold (2) and are each connected to and communicates with a sleeve (12). Both sleeves (12) extend backward into the lower mold. Inside the lower mold (2), valves (13) are installed on the front side of both sleeves (12). Both valves (13) are located on the front side of the lower mold (2). The top of the rear side of both sleeves (12) are slidably connected and connected to the air extraction pipe (11). The rear side of both air extraction pipes (11) extends to the interior of the top plate (9) and connects to the matching slide groove. The opening at the end of each pipe is adapted to the shape of the matching slide groove. The air extraction machine (15) is electrically connected to the controller (19).

3. The integrated casting and venting device for a high-efficiency V-process vacuum-cast aluminum speaker box according to claim 2, characterized in that, It also includes guide rods (16) and return springs (17). Inside the lower mold (2), two guide rods (16) are fixedly connected to the positions below the bottom of the two contact plates (10). Each contact plate (10) has a groove at the bottom that matches the corresponding guide rod (16). Each guide rod (16) is wrapped with a return spring (17). Each return spring (17) is located between the bottom of the corresponding contact plate (10) and the bottom of the lower mold (2). Under the action of the return spring (17), the tops of the two contact plates (10) protrude upwards, and the protrusion height is higher than the top plane of the lower mold (2).

4. The integrated casting and venting device for a high-efficiency V-process vacuum-cast aluminum speaker box according to claim 3, characterized in that, It also includes a temperature detector (18) and an indicator light (20). The temperature detector (18) and the indicator light (20) are respectively installed on the front side of the lower mold (2). The temperature detector (18) and the indicator light (20) are electrically connected to the controller (19).

5. The integrated casting and venting device for a high-efficiency V-process vacuum-cast aluminum speaker box according to claim 4, characterized in that, It also includes a servo motor (21), a lead screw (22) and a lifting plate (23). The top of the support plate (3) is equipped with a servo motor (21) with its output shaft facing downward. The lead screw (22) is fixedly connected to the output shaft of the servo motor (21). The lead screw (22) is threaded and connected to the lifting plate (23) through the thread. The front side of the lifting plate (23) is fixedly connected to the rear side of the sliding block (4). The servo motor (21) is electrically connected to the controller (19).

6. The integrated casting and venting device for a high-efficiency V-process vacuum-cast aluminum speaker box according to claim 5, characterized in that, It also includes magnetic block one (24) and magnetic block two (25). Magnetic block one (24) is provided at the bottom of both contact plates (10). Magnetic block two (25) is provided at the bottom of the lower mold (2) at the position corresponding to the two contact plates (10). Magnetic block one (24) and magnetic block two (25) of the same group are located between the corresponding two guide rods (16), and the opposite surfaces of magnetic block one (24) and magnetic block two (25) have the same magnetic poles, which generate a repulsive effect.

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