Zinc alloy die-casting machine and die-casting method

Abstract

The invention discloses a zinc alloy die-casting machine and a die-casting method, and belongs to the technical field of die-casting machines, the zinc alloy die-casting machine comprises a die-casting machine main body, a die closing system, a hydraulic system, an electrical control system, a die system and an auxiliary system are arranged in the die-casting machine main body, and the zinc alloy die-casting machine further comprises a smelting system; the smelting system comprises a heat preservation assembly and a smelting assembly, a gooseneck pipe is arranged in the heat preservation assembly, an injection assembly is arranged on the heat preservation assembly, a heating assembly is arranged on the smelting assembly, a preheating assembly is arranged on the top of the smelting assembly, a movable assembly is movably arranged on the preheating assembly, and a pick-and-place feeding assembly is movably arranged at the bottom of the movable assembly. And the heat preservation assembly and the smelting assembly are connected through the material guiding assembly, and the device has the advantages of partitioned heating and temperature control, efficient heat utilization, efficient preheating, automatic feeding, reliable structure and convenient operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of die casting machines, in particular to a zinc alloy die casting machine and a die casting method. BACKGROUND

[0002] The zinc alloy die casting machine is a complex system, mainly composed of the following core parts: a mold closing system, a pressure injection system, a melting system, an electrical control system, a mold system and an auxiliary system. In the melting system, the zinc alloy ingot is mainly melted and kept at a suitable temperature.

[0003] In actual work, because the staff does not follow the principle of "small amount and multiple times", but carries out "impulse" feeding of the melting furnace, a large amount of cold material is once put into the melting furnace, a large amount of cold material will instantly absorb a large amount of heat, causing the zinc liquid temperature to drop sharply, and unable to provide zinc liquid with stable temperature, affecting the product quality and the mold life.

[0004] Therefore, it is necessary to provide a zinc alloy die casting machine and a die casting method, which aims to solve the above problems. SUMMARY

[0005] In view of the deficiencies in the prior art, the purpose of the embodiments of the present application is to provide a zinc alloy die casting machine and a die casting method to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: A zinc alloy die casting machine, comprising a die casting machine main body, wherein the die casting machine main body is internally provided with a mold closing system, a hydraulic system, a melting system, an electrical control system, a mold system and an auxiliary system, the melting system comprises a heat preservation assembly and a melting assembly, the heat preservation assembly is internally provided with a goose neck pipe connected with the inside of the die casting machine main body, the heat preservation assembly is provided with a pressure injection assembly matched with the goose neck pipe, the melting assembly is provided with a heating assembly, and the zinc alloy die casting machine further comprises: A preheating assembly arranged on the top of the melting assembly and used for preheating zinc alloy ingots; A movable assembly movably arranged on the preheating assembly; A pick-and-place feeding assembly movably arranged on the bottom of the movable assembly and used for clamping the zinc alloy ingots; A transfer assembly arranged on the preheating assembly and matched with the pick-and-place feeding assembly, and used for adjusting the positions of the zinc alloy ingots in the preheating assembly.

[0007] As a further embodiment of the present invention, the heat preservation component includes a heat preservation box, a heat preservation furnace installed inside the heat preservation box, one end of the gooseneck tube corresponding to the zinc liquid at the bottom of the inner side of the heat preservation furnace, the other end of the gooseneck tube passing through the heat preservation furnace and the heat preservation box and connected to the mold system located inside the die casting machine body, a temperature sensor connected to the electrical control system is provided at the bottom of the heat preservation furnace, a plurality of electric heating tubes corresponding to the heat preservation furnace are symmetrically arranged inside the heat preservation box, and a top cover is installed on the top of the heat preservation furnace; The injection assembly includes an energy storage device installed on the outer wall of the insulation box, and the energy storage device has a conduit in the middle that penetrates the insulation box and the insulation furnace and corresponds to the top of the inner side of the insulation furnace.

[0008] As a further embodiment of the present invention, the smelting assembly includes a smelting box disposed on a heat preservation box, an air outlet is provided on the side of the smelting box away from the main body of the die casting machine, a movable door is hinged at the air outlet, a smelting furnace is disposed inside the smelting box, a second temperature sensor is disposed inside the smelting furnace, a material guide pipe connected to the heat preservation furnace is disposed at the bottom of the smelting furnace, and an electrically controlled valve is disposed on the material guide pipe.

[0009] As a further embodiment of the present invention, the heating assembly includes a power module installed on the outer wall of the melting box, and an induction coil is provided inside the melting box and coiled on the outer wall of the movable door. The two ends of the induction coil pass through the melting box and are connected to the power module.

[0010] As a further embodiment of the present invention, the preheating assembly includes a placement ring frame disposed on the top of the melting box, the placement ring frame being connected to the top of the melting furnace, the placement ring frame having a plurality of ventilation slots formed in the inner ring, a fixed ring frame being disposed above the placement ring frame, the placement ring frame and the fixed ring frame being connected by a connecting arc plate, a storage pipe for temporarily storing zinc alloy ingots being disposed at one end of the top of the fixed ring frame, a movable cover being hinged to the top of the storage pipe, and a gap being provided between the bottom of the storage pipe and the placement ring frame.

[0011] As a further embodiment of the present invention, the transfer assembly includes a rotating ring rotatably disposed between a placement ring frame and a fixed ring frame. The inner side of the rotating ring is provided with a retaining ring corresponding to the top of the smelting furnace. The rotating ring and the retaining ring are connected by a plurality of circumferentially distributed partitions. Positioning arc plates for positioning zinc alloy ingots are symmetrically provided on both sides of the partitions. The partitions are located below the bottom of the storage pipe. A toothed ring is provided on the outer wall of the rotating ring. A second motor is installed on the outer wall of the fixed ring frame. The output end of the second motor is connected to a second drive gear that meshes with the toothed ring.

[0012] As a further embodiment of the present invention, the movable component includes a turntable rotatably mounted on the top of a fixed ring frame. The turntable is located at the end of the fixed ring frame away from the storage pipe. A toothed ring is provided on the outer edge of the turntable. A bracket is provided on the top of the fixed ring frame. A motor is mounted on the bracket. The output end of the motor is connected to a drive gear that meshes with the toothed ring. A fixed column connected to the bracket is provided above the turntable. A guide ring groove is provided on the outer side of the fixed column. A lifting plate sleeved on the outer side of the fixed column is movably mounted above the turntable. A sliding column that slides in cooperation with the guide ring groove is provided on the lifting plate. A lifting column connected to the lifting plate is symmetrically mounted on the turntable. A side groove that slides in cooperation with the turntable is provided on the lifting column.

[0013] As a further embodiment of the present invention, the picking and feeding assembly includes a mounting plate disposed at the bottom of the lifting column. The mounting plate has several sliding grooves distributed circumferentially. A sliding plate is slidably mounted on the sliding grooves. The outer end of the sliding plate is provided with a clamp for contacting the outer wall of the zinc alloy ingot. A sliding column is provided at the end of the sliding plate away from the clamp. A sleeve is movably fitted on the outside of the lifting column. A bottom ring is installed at the bottom of the sleeve. The bottom ring has several sliding grooves circumferentially distributed to slide in cooperation with the corresponding sliding column. A top ring is provided at the top of the sleeve. A spiral blade is spirally mounted on the outside of the lifting column. A spiral groove is opened on the inner wall of the sleeve to slide in cooperation with the spiral blade. A fixing ring is provided on the lifting column between the top ring and the lifting plate. An electric cylinder is installed on the fixing ring to slide in cooperation with the top ring. A touch sensor electrically connected to the electric cylinder and the motor is installed on the side of the lifting plate near the turntable.

[0014] A die-casting method for zinc alloys, applicable to the zinc alloy die-casting machine described above, includes the following steps: Step S1: The picking and feeding assembly located outside the smelting furnace picks up the preheated zinc alloy ingot at the corresponding position; Step S2: The moving component, through its movable connection with the picking and feeding component, transfers the zinc alloy ingot it has been gripped to the top of the smelting furnace and releases the gripped zinc alloy ingot. Step S3: The zinc alloy ingot falls into the melting furnace, and the heating component melts the zinc alloy ingot in cooperation with the melting furnace. Step S4: The material guiding assembly guides the molten zinc in the smelting furnace to the holding furnace; Step S5: The injection assembly injects zinc liquid into the die-casting machine body in conjunction with the holding furnace and the gooseneck tube to realize the die-casting operation of zinc alloy.

[0015] In summary, the embodiments of the present invention have the following beneficial effects compared with the prior art: 1. In this invention, the space above the smelting furnace can be sealed by the combination of the placement ring frame, the fixed ring frame, the rotating ring, the storage pipe and the movable cover. The heat generated during the melting of zinc alloy ingots will pass through the top of the smelting furnace and several ventilation slots in sequence, and finally be discharged through the vent. During the process of heat passing through several ventilation slots from the top of the smelting furnace, the heat can preheat several zinc alloy ingots placed on the placement ring frame, avoiding the problem of a sudden drop in the temperature of the zinc liquid in the smelting furnace caused by cold material being put into the smelting furnace. At the same time, it can effectively reduce heat loss and improve heat utilization. 2. In this invention, based on the principle of feeding in small quantities and multiple times, when the zinc alloy ingot that has been fed has been melted and a new zinc alloy ingot needs to be fed again, the motor drives the active gear to rotate, which drives the lifting plate to move. The movement trajectory of the lifting plate is first spiraling upward, then rotating horizontally, and finally spiraling downward, so that the picking and feeding component that clamps the zinc alloy ingot rotates to the top of the melting furnace, and the picking and feeding component in the open state rotates to the outside of the melting furnace and corresponds to the next zinc alloy ingot to be clamped. 3. In this invention, when the lifting plate spirals down to the lowest point, the touch sensor at the bottom of the lifting plate comes into contact with the turntable. The touch sensor is squeezed, sends a signal and transmits it to the electrical control system. The electrical control system controls the electric cylinder located above the smelting furnace to extend downward, the bottom ring spirals down, and the slide moves outward, releasing the clamping operation of the zinc alloy ingot. The zinc alloy ingot falls into the smelting furnace under its own gravity, realizing the orderly feeding of zinc alloy ingots. This can effectively avoid the problem of large fluctuations in the temperature of the zinc liquid caused by feeding a large amount of cold material at once. 4. In this invention, during the rotation of the picking and placing feeding assembly, the second motor drives the second drive gear to rotate. The second drive gear drives several zinc alloy ingots located between two adjacent positioning arc plates to rotate synchronously through meshing with the toothed ring and connecting the rotating ring and the partition plate. This facilitates the timely replenishment of zinc alloy ingots at the clamping position. At the same time, during the rotation of several zinc alloy ingots, it is easy to uniformly preheat the zinc alloy ingots and avoid the problem of insufficient preheating of the zinc alloy ingots.

[0016] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention.

[0018] Figure 2 This is a schematic diagram of the smelting system in this invention.

[0019] Figure 3 This is a cross-sectional view of the smelting system in this invention.

[0020] Figure 4 This is a cross-sectional view of the melting box in this invention.

[0021] Figure 5 This is a schematic diagram of the transfer component in this invention.

[0022] Figure 6 This is a schematic diagram of the structure of the active component in this invention.

[0023] Figure 7 This is a schematic diagram of the material picking and dispensing assembly in this invention.

[0024] Figure 8 In this invention Figure 7 A magnified view of a portion of point A in the middle.

[0025] Attached reference numerals: 1. Die-casting machine body; 101. Gooseneck tube; 2. Insulation components; 201. Insulation box; 202. Insulation furnace; 203. Temperature sensor one; 204. Electric heating element; 205. Top cover; 3. Injection assembly; 301. Energy storage device; 4. Melting assembly; 401. Melting box; 402. Gas outlet; 403. Movable door; 404. Melting furnace; 405. Temperature sensor 2; 406. Material guide pipe; 407. Electrically controlled valve; 5. Heating assembly; 501. Power supply module; 502. Induction coil; 6. Preheating component; 601. Placement ring frame; 602. Fixing ring frame; 603. Connecting arc plate; 604. Ventilation groove; 605. Material storage pipe; 606. Movable cover; 7. Moving components; 701. Bracket; 702. Motor 1; 703. Drive gear 1; 704. Turntable 1; 705. Gear ring; 706. Fixed column; 707. Guide ring groove; 708. Lifting plate; 709. Lifting column; 710. Side groove; 711. Sliding column 1; 8. Transfer assembly; 801. Motor II; 802. Drive gear II; 803. Rotary ring; 804. Gear ring; 805. Partition plate; 806. Positioning arc plate; 807. Retaining ring; 9. Pick-up and feeding assembly; 901. Mounting plate; 902. Slide chute one; 903. Slide plate; 904. Clamping plate; 9041. Concave arc plate; 9042. Rotating column; 9043. Limiting ring; 905. Slide column two; 906. Bottom ring; 907. Slide chute two; 908. Sleeve; 909. Top ring; 910. Spiral blade; 911. Fixing ring; 912. Electric cylinder; 913. Touch sensor; 10. Zinc alloy ingots. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0027] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0028] In one embodiment of the present invention, see Figures 1-3 A zinc alloy die-casting machine includes a die-casting machine body 1. The die-casting machine body 1 is equipped with a mold clamping system, a hydraulic system, an electrical control system, a mold system, and an auxiliary system (not shown in the figure). It also includes a melting system. The melting system includes a heat preservation component 2 and a melting component 4. The heat preservation component 2 is equipped with a gooseneck tube 101 connected to the inside of the die-casting machine body 1. The heat preservation component 2 is equipped with an injection component 3 that cooperates with the gooseneck tube 101. The melting component 4 is equipped with a heating component 5. The top of the melting component 4 is equipped with a preheating component 6 for preheating zinc alloy ingots 10. The preheating component 6 is movably equipped with a movable component 7. The bottom of the movable component 7 is movably equipped with a pick-and-place feeding component 9 for clamping zinc alloy ingots 10. The preheating component 6 is equipped with a transfer component 8 that cooperates with the pick-and-place feeding component 9. The transfer component 8 is used to adjust the position of several zinc alloy ingots 10 located inside the preheating component 6.

[0029] In this embodiment, the heating component 5 can melt the zinc alloy ingot 10 in the melting component 4. The injection component 3, in conjunction with the heat preservation component 2 and the gooseneck tube 101, injects zinc at a stable temperature into the mold system to achieve the die casting of the zinc alloy. Through the cooperation of the preheating component 6 and the melting component 4, the zinc alloy ingot 10 can be preheated by the large amount of heat generated during the melting process. The pick-and-place feeding component 9 can clamp the zinc alloy ingot 10 at the corresponding position. The movable component 7 transfers the clamped zinc alloy ingot 10 to directly above the melting component 4 by driving the pick-and-place feeding component 9 to move back and forth and rotate, and then releases the clamp on the zinc alloy ingot 10. The zinc alloy ingots 10 fall into the molten zinc under their own gravity, enabling the orderly feeding of zinc alloy ingots 10 in small quantities multiple times. This avoids the low efficiency of manual feeding and the problem of a large amount of heat loss caused by each opening of the furnace door. At the same time, the transfer component 8 feeds the zinc alloy ingots 10 by driving several zinc alloy ingots 10 to rotate synchronously, which is convenient for the picking and placing component 9 to pick up. It also facilitates efficient preheating of the zinc alloy ingots 10 located inside the preheating component 6, avoiding the problem of a sudden drop in the temperature of the molten zinc caused by cold material being put into the smelting component 4. This achieves effective heat utilization and has the effects of zoned heating and temperature control, efficient heat utilization, efficient preheating, automatic feeding, reliable structure and convenient operation.

[0030] In one embodiment of the present invention, see Figures 1-3 The heat preservation component 2 includes a heat preservation box 201, a heat preservation furnace 202 installed inside the heat preservation box 201, one end of the gooseneck tube 101 corresponding to the zinc liquid at the bottom of the inner side of the heat preservation furnace 202, and the other end of the gooseneck tube 101 passing through the heat preservation furnace 202 and the heat preservation box 201 and connected to the mold system located inside the die casting machine body 1. The bottom of the heat preservation furnace 202 is provided with a temperature sensor 203 connected to the electrical control system. Several electric heating tubes 204 corresponding to the heat preservation furnace 202 are symmetrically arranged inside the heat preservation box 201. The top of the heat preservation furnace 202 is equipped with a top cover 205.

[0031] The injection assembly 3 includes an energy storage device 301 installed on the outer wall of the insulation box 201. The energy storage device 301 has a conduit (not shown in the figure) that passes through the insulation box 201 and the insulation furnace 202 and corresponds to the top of the inner side of the insulation furnace 202.

[0032] In this embodiment, the temperature of the molten metal inside the holding furnace 202 is monitored in real time by temperature sensor 203, and the temperature of the molten zinc is adjusted by controlling the operation of electric heating tube 204, so that the temperature of the molten zinc inside the holding furnace 202 is always at the optimal temperature, avoiding the problems of reduced product quality and mold life caused by excessively high or low molten zinc temperature.

[0033] The energy storage device 301 pressurizes the inside of the holding furnace 202 to inject the molten zinc at a stable temperature into the mold system through the gooseneck tube 101, thereby realizing the die casting of zinc alloy products.

[0034] It is important to note that the temperature of the molten zinc varies depending on the specific product being die-cast. Specifically, when the zinc alloy product is a thin-walled or complex part, the optimal temperature for the molten zinc is 440-450℃ to improve fluidity and prevent cold shuts and incomplete filling. When the zinc alloy product is a thick-walled or simple part, the optimal temperature for the molten zinc is 410-430℃ to reduce defects and prevent shrinkage cavities, sticking, and blistering. When the zinc alloy product is a general-purpose part, the optimal temperature for the molten zinc is 420-430℃ to balance performance and achieve a balance between quality and efficiency.

[0035] In one embodiment of the present invention, see Figures 1-5 The smelting assembly 4 includes a smelting box 401 mounted on the heat preservation box 201. The smelting box 401 has an air outlet 402 on the side away from the die casting machine body 1. A movable door 403 is hinged to the air outlet 402. A smelting furnace 404 is provided inside the smelting box 401. A temperature sensor 405 is provided inside the smelting furnace 404. A material guide pipe 406 connected to the heat preservation box 202 is provided at the bottom of the smelting furnace 404. An electrically controlled valve 407 is provided on the material guide pipe 406.

[0036] The heating assembly 5 includes a power module 501 installed on the outer wall of the melting box 401. The melting box 401 is provided with an induction coil 502 that is coiled on the outer wall of the movable door 403. The two ends of the induction coil 502 pass through the melting box 401 and are connected to the power module 501.

[0037] In this embodiment, the power module 501, in conjunction with the induction coil 502, melts the zinc alloy ingot 10 located inside the melting furnace 404. The zinc alloy ingot 10 inside the melting furnace 404 is heated and gradually melts into molten zinc. The temperature of the molten zinc inside the melting furnace 404 is monitored in real time by the temperature sensor 405. When the temperature gradually stabilizes, the electrically controlled valve 407 is opened, and the molten zinc inside the melting furnace 404 is guided to the holding furnace 202 through the material guide pipe 406, thereby realizing zoned heating and heat preservation treatment and reducing the problem of temperature fluctuation of molten zinc during die casting.

[0038] It should be noted that when heating the zinc alloy ingot 10 in the smelting furnace 404, the connection between the movable door 403 and the air outlet 402 needs to be released to allow air to pass between the inside and outside of the smelting box 401, thus avoiding safety hazards caused by excessive air pressure inside the smelting box 401. When heating is stopped, the movable door 403 is closed to allow the connection between the movable door 403 and the air outlet 402 to reduce heat loss in the smelting box 401 and help maintain a stable zinc liquid temperature.

[0039] In one embodiment of the invention, see Figures 1-5 The preheating component 6 includes a placement ring frame 601 disposed on the top of the melting box 401. The placement ring frame 601 is connected to the top of the melting furnace 404. The inner ring of the placement ring frame 601 has several ventilation slots 604. A fixed ring frame 602 is disposed above the placement ring frame 601. The placement ring frame 601 and the fixed ring frame 602 are connected by a connecting arc plate 603. One end of the top of the fixed ring frame 602 is provided with a storage pipe 605 for temporarily storing zinc alloy ingots 10. The top of the storage pipe 605 is hinged with a movable cover 606. There is a gap between the bottom of the storage pipe 605 and the placement ring frame 601.

[0040] The transfer assembly 8 includes a rotating ring 803 rotatably disposed between a placement ring frame 601 and a fixed ring frame 602. The inner side of the rotating ring 803 is provided with a retaining ring 807 corresponding to the top of the smelting furnace 404. The rotating ring 803 and the retaining ring 807 are connected by a plurality of circumferentially distributed partitions 805. The two sides of the partitions 805 are symmetrically provided with positioning arc plates 806 for positioning zinc alloy ingots 10. The partitions 805 are located below the bottom of the storage pipe 605. The outer wall of the rotating ring 803 is provided with a toothed ring 804. The outer wall of the fixed ring frame 602 is equipped with a second motor 801. The output end of the second motor 801 is connected to a second drive gear 802 that meshes with the toothed ring 804.

[0041] In this embodiment, the space above the smelting furnace 404 can be sealed by the cooperation of the placement ring frame 601, the fixed ring frame 602, the rotating ring 803, the storage pipe 605, and the movable cover 606. The heat generated during the melting of the zinc alloy ingot 10 will pass through the top of the smelting furnace 404 and several ventilation slots 604 in sequence, and finally be discharged through the air outlet 402. During the process of heat passing through several ventilation slots 604 from the top of the smelting furnace 404, the heat can preheat the several zinc alloy ingots 10 placed on the placement ring frame 601, avoiding the problem of a sudden drop in the temperature of the zinc liquid in the smelting furnace 404 caused by cold material being put into the smelting furnace 404. At the same time, it can effectively reduce heat loss and improve heat utilization.

[0042] It is worth noting that the distance from the bottom of the storage tube 605 to the placement ring frame 601 is greater than the distance from the top of the partition 805 to the bottom of the partition 805. The distance from the bottom of the storage tube 605 to the placement ring frame 601 is no greater than twice the thickness of the zinc alloy ingot 10. The distance from the top of the partition 805 to the bottom of the partition 805 is no greater than the thickness of the zinc alloy ingot 10. This facilitates the orderly preheating and spaced distribution of the zinc alloy ingot 10, and facilitates the orderly feeding of the zinc alloy ingot 10 in the future.

[0043] In one embodiment of the present invention, see Figures 1-8 The movable component 7 includes a turntable 704 rotatably mounted on top of the fixed ring frame 602. The turntable 704 is located at the end of the fixed ring frame 602 away from the storage pipe 605. A toothed ring 705 is provided on the outer edge of the turntable 704. A bracket 701 is provided on top of the fixed ring frame 602. A motor 702 is mounted on the bracket 701. The output end of the motor 702 is connected to a drive gear 703 that meshes with the toothed ring 705. A connecting gear 703 is provided above the turntable 704. A fixed column 706 is connected to the frame 701. The fixed column 706 has a guide ring groove 707 on its outer side. A lifting plate 708 is movably mounted on the outside of the fixed column 706 above the turntable 704. The lifting plate 708 has a sliding column 711 that slides in cooperation with the guide ring groove 707. The turntable 704 has symmetrically mounted lifting columns 709 that are connected to the lifting plate 708. The lifting column 709 has a side groove 710 that slides in cooperation with the turntable 704.

[0044] The picking and placing assembly 9 includes a mounting plate 901 disposed at the bottom of the lifting column 709. The mounting plate 901 has several circumferentially distributed sliding grooves 902. A sliding plate 903 is slidably mounted on each sliding groove 902. The outer end of the sliding plate 903 is provided with a clamping plate 904 for contacting the outer wall of the zinc alloy ingot 10. A sliding column 905 is provided at the end of the sliding plate 903 away from the clamping plate 904. A sleeve 908 is movably fitted onto the outer side of the lifting column 709. A bottom ring 906 is installed at the bottom of the sleeve 908. Several sliding columns 905 are respectively circumferentially mounted on the bottom ring 906 and slide against the corresponding sliding columns 905. The sleeve 908 has a top ring 909 at its top, and a spiral blade 910 is spirally arranged on the outer side of the lifting column 709. The inner wall of the sleeve 908 has a spiral groove (not shown in the figure) that slides with the spiral blade 910. The lifting column 709 has a fixing ring 911 located between the top ring 909 and the lifting plate 708. An electric cylinder 912 that slides with the top ring 909 is installed on the fixing ring 911. A touch sensor 913 that is electrically connected to the electric cylinder 912 and the motor 801 is installed on the side of the lifting plate 708 near the turntable 704.

[0045] In this embodiment, in the initial state, the lifting plate 708 slides into the lowest end of the guide ring groove 707, and the two pick-up and feeding components 9 are located at the lowest point. Among them, the pick-up and feeding component 9 located directly above the smelting furnace 404 is in the open state, corresponding to the bottom ring 906, sleeve 908 and top ring 909 of the mounting plate 901 being in a high position; the pick-up and feeding component 9 located outside the smelting furnace 404 clamps the next zinc alloy ingot 10 to be fed, corresponding to the bottom ring 906, sleeve 908 and top ring 909 of the mounting plate 901 being in a low position.

[0046] Based on the principle of feeding in small quantities and multiple times, when the zinc alloy ingot 10 that has been fed has been melted and a new zinc alloy ingot 10 needs to be fed again, the motor 702 drives the drive gear 703 to rotate. The drive gear 703 drives the lifting column 709 to rotate synchronously by meshing with the gear ring 705, rotating with the turntable 704 and the fixed ring frame 602, and sliding with the turntable 704 and the side groove 710. The lifting column 709 drives the lifting plate 708 to move by connecting with the lifting plate 708, sliding with the sliding column 711 and the guide ring groove 707, and connecting with the fixed column 706 and the bracket 701. The movement trajectory of the lifting plate 708 is first spiraling upward, then rotating horizontally, and finally spiraling downward, so that the picking and placing feeding component 9 that clamps the zinc alloy ingot 10 rotates to the top of the melting furnace 404. The picking and placing feeding component 9, which is in the open state, rotates to the outside of the melting furnace 404 and corresponds to the next zinc alloy ingot 10 to be clamped.

[0047] Furthermore, when the lifting plate 708 descends to its lowest point, the touch sensor 913 located at the bottom of the lifting plate 708 comes into contact with the turntable 704. The touch sensor 913 is squeezed, sending a signal to the electrical control system. The electrical control system then controls the electric cylinder 912 located above the melting furnace 404 to extend downwards. The electric cylinder 912 pushes the top ring 909 downwards by extending downwards. The sleeve 908, through its connection with the sleeve 908 and the sliding engagement of the spiral groove and spiral blade 910, drives the bottom ring 906 to spiral downwards. The bottom ring 906 moves the slide plate 903 outward through the sliding engagement of the second slide groove 907 and the second slide column 905, the sliding engagement of the second slide column 905 and the first slide groove 902, and the sliding engagement of the slide plate 903 and the first slide groove 902. The slide plate 903 releases the clamping operation of the zinc alloy ingot 10 by driving the clamping plate 904 to move synchronously. The zinc alloy ingot 10 falls into the smelting furnace 404 under its own gravity, realizing the orderly feeding of the zinc alloy ingot 10. This can effectively avoid the problem of large fluctuations in the temperature of the zinc liquid caused by feeding a large amount of cold material at one time.

[0048] Furthermore, during the rotation of the picking and placing assembly 9, the motor 801 drives the drive gear 802 to rotate. The drive gear 802, through meshing with the toothed ring 804 and connecting the rotating ring 803 and the partition 805, drives several zinc alloy ingots 10 located between two adjacent positioning arc plates 806 to rotate synchronously, facilitating the timely replenishment of zinc alloy ingots 10 at the clamping position. At the same time, during the rotation of several zinc alloy ingots 10, it is easy to uniformly preheat the zinc alloy ingots 10, avoiding the problem of insufficient preheating of the zinc alloy ingots 10.

[0049] It is worth noting that the clamping plate 904 includes a concave arc plate 9041 that movably fits against the outer wall of the zinc alloy ingot 10. The top of the concave arc plate 9041 is provided with a rotating column 9042 that rotates with the sliding plate 903. The rotating column 9042 is provided with limiting rings 9043 that rotate with the top and bottom of the sliding plate 903. Through the rotational engagement between the rotating column 9042 and the sliding plate 903, the angle of the concave arc plate 9041 can be flexibly adjusted, thereby meeting the clamping requirements of zinc alloy ingots 10 with different edge shapes, improving the stability and adaptability of clamping the zinc alloy ingot 10, and facilitating the stable feeding of the zinc alloy ingot 10.

[0050] In one embodiment of the present invention, a die-casting method for zinc alloy, applicable to the aforementioned zinc alloy die-casting machine, includes the following steps: Step S1: The picking and feeding assembly 9 located outside the melting furnace 404 picks up the preheated zinc alloy ingot 10 at the corresponding position; Step S2: The active component 7, through its active connection with the pick-and-place feeding component 9, transfers the zinc alloy ingot 10 it has gripped to the top of the smelting furnace 404 and releases the gripped zinc alloy ingot 10. Step S3: The zinc alloy ingot 10 falls into the melting furnace 404, and the heating component 5 melts the zinc alloy ingot 10 in cooperation with the melting furnace 404. Step S4: The feeding assembly 10 guides the molten zinc in the smelting furnace 404 into the holding furnace 202; In step S5, the injection assembly 3 injects zinc liquid into the die-casting machine body 1 in conjunction with the holding furnace 202 and the gooseneck tube 101 to realize the die-casting operation of zinc alloy.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A zinc alloy die-casting machine, comprising a die-casting machine body (1), wherein the die-casting machine body (1) is provided with a mold clamping system, a hydraulic system, a melting system, an electrical control system, a mold system, and an auxiliary system, characterized in that, The melting system includes a heat preservation component (2) and a melting component (4). The heat preservation component (2) is provided with a gooseneck tube (101) connected to the inside of the die-casting machine body (1). The heat preservation component (2) is provided with an injection component (3) that cooperates with the gooseneck tube (101). The melting component (4) is provided with a heating component (5). The system also includes: The preheating component (6) is located on top of the melting component (4) and is used to preheat the zinc alloy ingot (10). Activity component (7), the activity is set on the preheating component (6); The picking and placing component (9) is located at the bottom of the movable component (7) and is used to pick up zinc alloy ingots (10). The transfer component (8) is located on the preheating component (6) and cooperates with the pick-and-place feeding component (9) to adjust the position of several zinc alloy ingots (10) located inside the preheating component (6).

2. The zinc alloy die-casting machine according to claim 1, characterized in that, The heat preservation component (2) includes a heat preservation box (201), a heat preservation furnace (202) is installed inside the heat preservation box (201), one end of the gooseneck tube (101) corresponds to the zinc liquid at the bottom of the inner side of the heat preservation furnace (202), the other end of the gooseneck tube (101) passes through the heat preservation furnace (202) and the heat preservation box (201) and is connected to the mold system located inside the die casting machine body (1), the bottom of the heat preservation furnace (202) is provided with a temperature sensor (203) connected to the electrical control system, a number of electric heating tubes (204) corresponding to the heat preservation furnace (202) are symmetrically arranged inside the heat preservation box (201), and a top cover (205) is installed on the top of the heat preservation furnace (202). The injection assembly (3) includes an energy storage device (301) installed on the outer wall of the insulation box (201). The energy storage device (301) has a conduit in the middle that penetrates the insulation box (201) and the insulation furnace (202) and corresponds to the top of the inner side of the insulation furnace (202).

3. The zinc alloy die-casting machine according to claim 2, characterized in that, The smelting assembly (4) includes a smelting box (401) set on the heat preservation box (201). The smelting box (401) has an air outlet (402) on the side away from the die casting machine body (1). A movable door (403) is hinged at the air outlet (402). A smelting furnace (404) is set inside the smelting box (401). A second temperature sensor (405) is set inside the smelting furnace (404). A guide pipe (406) connected to the heat preservation furnace (202) is set at the bottom of the smelting furnace (404). An electrically controlled valve (407) is set on the guide pipe (406).

4. The zinc alloy die-casting machine according to claim 3, characterized in that, The heating assembly (5) includes a power module (501) installed on the outer wall of the melting box (401). The melting box (401) is provided with an induction coil (502) that is coiled on the outer wall of the movable door (403). The two ends of the induction coil (502) pass through the melting box (401) and are connected to the power module (501).

5. The zinc alloy die-casting machine according to claim 3, characterized in that, The preheating component (6) includes a placement ring frame (601) disposed on the top of the melting box (401). The placement ring frame (601) is connected to the top of the melting furnace (404). The placement ring frame (601) has several ventilation slots (604) in the inner ring. A fixed ring frame (602) is disposed above the placement ring frame (601). The placement ring frame (601) and the fixed ring frame (602) are connected by a connecting arc plate (603). One end of the top of the fixed ring frame (602) is provided with a storage pipe (605) for temporarily storing zinc alloy ingots (10). The top of the storage pipe (605) is hinged with a movable cover (606). There is a gap between the bottom of the storage pipe (605) and the placement ring frame (601).

6. The zinc alloy die-casting machine according to claim 5, characterized in that, The transfer assembly (8) includes a rotating ring (803) rotatably disposed between a placement ring frame (601) and a fixed ring frame (602). The inner side of the rotating ring (803) is provided with a retaining ring (807) corresponding to the top of the melting furnace (404). The rotating ring (803) and the retaining ring (807) are connected by a number of circumferentially distributed partitions (805). The two sides of the partitions (805) are symmetrically provided with positioning arc plates (806) for positioning zinc alloy ingots (10). The partitions (805) are located below the bottom of the storage pipe (605). The outer wall of the rotating ring (803) is provided with a toothed ring (804). The outer wall of the fixed ring frame (602) is equipped with a second motor (801). The output end of the second motor (801) is connected to a second drive gear (802) that meshes with the toothed ring (804).

7. The zinc alloy die-casting machine according to claim 5, characterized in that, The movable component (7) includes a turntable (704) rotatably mounted on the top of a fixed ring frame (602). The turntable (704) is located at the end of the fixed ring frame (602) away from the storage pipe (605). A toothed ring (705) is provided on the outer edge of the turntable (704). A bracket (701) is provided on the top of the fixed ring frame (602). A motor (702) is mounted on the bracket (701). The output end of the motor (702) is connected to a drive gear (703) that meshes with the toothed ring (705). A support is provided above the turntable (704) to connect with the support. A fixed column (706) is connected to the frame (701). The fixed column (706) has a guide ring groove (707) on its outer side. A lifting plate (708) is movably mounted on the upper part of the turntable (704) and sleeved on the outer side of the fixed column (706). A sliding column (711) is provided on the lifting plate (708) and slides in cooperation with the guide ring groove (707). A lifting column (709) is symmetrically and movably mounted on the turntable (704) and is connected to the lifting plate (708). A side groove (710) is provided on the lifting column (709) and slides in cooperation with the turntable (704).

8. The zinc alloy die-casting machine according to claim 7, characterized in that, The picking and feeding assembly (9) includes a mounting plate (901) disposed at the bottom of the lifting column (709). The mounting plate (901) has several circumferentially distributed sliding grooves (902). A sliding plate (903) is slidably mounted on the sliding grooves (902). The outer end of the sliding plate (903) is provided with a clamping plate (904) for contacting the outer wall of the zinc alloy ingot (10). A sliding column (905) is provided at the end of the sliding plate (903) away from the clamping plate (904). A sleeve (908) is movably fitted on the outside of the lifting column (709). A bottom ring (906) is installed at the bottom of the sleeve (908). The bottom ring (906) has several corresponding sliding columns (905) circumferentially distributed on it. 5) Sliding groove two (907), the top of the sleeve (908) is provided with a top ring (909), the outer side of the lifting column (709) is provided with a spiral blade (910), the inner wall of the sleeve (908) is provided with a spiral groove that slides with the spiral blade (910), the lifting column (709) is provided with a fixing ring (911) located between the top ring (909) and the lifting plate (708), the fixing ring (911) is provided with an electric cylinder (912) that slides with the top ring (909), and the side of the lifting plate (708) near the turntable one (704) is provided with a touch sensor (913) that is electrically connected to the electric cylinder (912) and the motor two (801).

9. A method for die-casting a zinc alloy, applicable to the zinc alloy die-casting machine according to any one of claims 1-8, characterized in that, Includes the following steps: Step S1: The picking and feeding assembly (9) located outside the smelting furnace (404) picks up the preheated zinc alloy ingot (10) at the corresponding position. Step S2: The active component (7) drives the zinc alloy ingot (10) to be transferred above the smelting furnace (404) by being connected to the pick-and-place feeding component (9), and releases the zinc alloy ingot (10). Step S3: The zinc alloy ingot (10) falls into the melting furnace (404), and the heating component (5) melts the zinc alloy ingot (10) in cooperation with the melting furnace (404). Step S4: The feeding assembly (10) guides the molten zinc in the smelting furnace (404) into the holding furnace (202); Step S5: The injection assembly (3) injects zinc into the die-casting machine body (1) in conjunction with the heat preservation furnace (202) and the gooseneck tube (101) to realize the die-casting operation of zinc alloy.

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