Aluminum alloy melting device equipment of die casting machine

Abstract

The utility model provides aluminum alloy melting equipment of a die casting machine, which relates to the technical field of aluminum alloy melting and comprises a working base. According to the aluminum alloy melting device of the die casting machine, an open chain plate conveying or tilting type melting furnace is mostly adopted in a traditional aluminum alloy melting device of the die casting machine, aluminum blocks slide into a melting pool under the action of gravity, the blocking rate is high, and melting liquid is prone to oxidation when flowing through an external pipeline. A spiral auger conveying mechanism and a coaxial nested runner are introduced, a material flowing path is reconstructed, spiral blades of an auger sleeve apply continuous axial thrust to the aluminum materials, pre-crushing of a crushing roller is matched, the fragment passing rate is increased, and the blocking risk is zero; leakage prevention and control, wherein an annular gap (1-2 mm) between the conveying shell and the auger sleeve forms a closed conveying cavity, and molten aluminum flows in the inner cavity in the whole process; the injection head and the auger sleeve adopt a conical surface sealing coaxial runner to allow a heating assembly of the injection head to radiate and heat the conveyed materials, so that the materials are conveyed and melted at the same time, the temperature of the melt is uniform, and operators are physically isolated from high-temperature parts.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy melting technology, and in particular to a device for melting aluminum alloys in a die-casting machine. Background Technology

[0002] As a core process for lightweight manufacturing, aluminum alloy die casting technology has seen rapid growth in applications in new energy vehicles, aerospace, 3C electronics, and other fields. In particular, in the field of new energy vehicles, the widespread adoption of ultra-large die casting machines with a capacity of over 8,000 tons has driven the demand for mass production of integrated body structural components, which places higher demands on the efficiency, safety, and stability of aluminum alloy melting equipment.

[0003] The following safety hazards and technical defects are commonly found in the aluminum alloy melting devices of current die-casting machines:

[0004] 1) Risk of conveyor blockage: Traditional gravity feeding or chain conveyor is prone to material jamming due to aluminum shavings accumulation, which may cause equipment overload, motor burnout or even pipe burst; Uneven heating: The heat transfer efficiency of discrete heating and injection units is low, the temperature of melt fluctuates greatly, and local overheating may cause aluminum melt to splash or crucible to crack.

[0005] 2) Loose structure and leakage: The melting, conveying and injection modules are designed separately. The seals at the pipe connections are prone to failure at high temperatures, and aluminum liquid leakage may cause fire or burns; Difficult maintenance: Disassembly and maintenance require stopping the machine to remove multiple components. The operating space is narrow and there is a high risk of contact with high-temperature parts. Utility Model Content

[0006] This utility model aims to provide a device for melting aluminum alloys in a die-casting machine. Through integrated structural design and functional synergy, it eliminates the leakage and overload hazards of split-type equipment, while improving melting efficiency and operational safety.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] Preferably, a die-casting machine for melting aluminum alloy includes: a working base, a first support fixedly connected to the top of the working base, a conveying shell mounted on the top of the first support, and a conveying mechanism fixedly connected to the top of the first support; the conveying mechanism includes a first motor, a first gear fixedly connected to the output end of the first motor, a gear ring meshing with the outer wall of the first gear, and a auger sleeve fixedly connected to the outer surface of the gear ring.

[0009] Preferably, a second bracket is fixedly connected to the top of the working base, and an injection heating mechanism is fixedly connected to the top of the second bracket; the injection heating mechanism includes an electric push rod, a transmission column is fixedly connected to the output end of the electric push rod, a set of heating components is provided on the outer wall of the transmission column, and an injection head is fixedly connected to one end of the heating components.

[0010] Preferably, the top of the conveying shell is fixedly connected to a stirring shell, and a stirring mechanism is provided inside the stirring shell; the stirring mechanism includes a second motor, and two crushing rollers are movably inserted inside the stirring shell, one end of one crushing roller is fixedly connected to the output end of the second motor, and one end of each of the two crushing rollers is fixedly connected to a second gear, and the outer walls of the two second gears mesh with each other.

[0011] Preferably, one end of the conveying housing is fixedly connected to a connecting flange, the inside of the conveying housing is fitted onto the outer wall of the conveying mechanism, and the inside of the conveying mechanism is fitted onto the outer wall of the injection heating mechanism.

[0012] Preferably, the top of the first bracket is fixedly connected to the bottom of the first motor, and the top of the first bracket is fixedly connected to the outer wall of the conveying housing.

[0013] Preferably, the top of the second bracket and the bottom of the electric actuator are fixedly connected, and the transmission column is movably inserted into the inside of the auger sleeve.

[0014] Preferably, the injection head is placed in the cavity between the outer wall of the delivery housing and the inside of the auger sleeve.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. In this utility model, traditional die-casting machine aluminum alloy melting devices mostly adopt open chain plate conveyors or tilting furnaces. The aluminum blocks slide into the molten pool under gravity, resulting in a high blockage rate and easy oxidation of the molten liquid when flowing through external pipelines. By introducing a spiral auger conveyor mechanism and a coaxial nested flow channel, the material flow path is reconstructed: the spiral blades of the auger sleeve apply a continuous axial thrust to the aluminum material, and with the pre-crushing of the crushing roller, the fragment throughput rate is improved, and the risk of blockage is reduced to zero; leakage prevention: the annular gap (1-2mm) between the conveyor shell and the auger sleeve forms a closed conveying cavity, and the aluminum liquid flows in the inner cavity throughout the process; the injection head and the auger sleeve adopt a conical sealed coaxial flow channel, which allows the heating component of the injection head to radiate heat the material during conveying, realizing simultaneous conveying and melting, uniform molten liquid temperature, and physical isolation of operators from high-temperature components.

[0017] 2. In this utility model, the traditional process has poor compatibility with recycled aluminum, and hard particles can easily cause cracks in the die-cast parts. Moreover, the staged processing of crushing, melting and injection is time-consuming. This utility model overcomes the key technical difficulties by dynamically coordinating the injection heating mechanism and the double-roller countercurrent crushing. Attached Figure Description

[0018] Figure 1 This utility model provides a perspective view of a die-casting machine's aluminum alloy melting device.

[0019] Figure 2 This utility model provides another perspective view of a die-casting machine's aluminum alloy melting device.

[0020] Figure 3 This utility model provides a partial three-dimensional structural view of a die-casting machine aluminum alloy melting device.

[0021] Figure 4 This utility model provides a three-dimensional view of the internal structure of a die-casting machine's aluminum alloy melting device.

[0022] Figure 5 This utility model presents a three-dimensional view of the internal structure of a die-casting machine's aluminum alloy melting device from another angle.

[0023] Legend: 1. Working base; 11. First support; 12. Second support; 13. Conveyor housing;

[0024] 14. Mixing shell; 15. Connecting flange; 2. Conveying mechanism; 3. Injection heating mechanism; 4. Mixing mechanism;

[0025] 201. First motor; 202. First gear; 203. Gear ring; 204. Screw sleeve; 301. Electric actuator; 302. Transmission column; 303. Heating assembly; 304. Injection head; 401. Second motor; 402. Crushing roller; 403. Second gear. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0028] Example 1: Please refer to the attached document. Figure 1 - Appendix Figure 5 As shown, this utility model provides a die-casting machine for melting aluminum alloy, comprising: a working base 1, a first support 11 fixedly connected to the top of the working base 1, a conveying housing 13 mounted on the top of the first support 11, and a conveying mechanism 2 fixedly connected to the top of the first support 11; the conveying mechanism 2 includes a first motor 201, a first gear 202 fixedly connected to the output end of the first motor 201, a gear ring 203 meshing with the outer wall of the first gear 202, and a auger sleeve 204 fixedly connected to the outer surface of the gear ring 203.

[0029] The effect achieved by the entire embodiment 1 is that the first motor 201 drives the first gear 202 to mesh with the gear ring 203, thereby driving the auger sleeve 204 to rotate continuously, forming a stable spiral conveying power source. The auger blades uniformly push the aluminum alloy scrap from the inlet end of the conveying shell 13 to the heating zone, avoiding the clogging problem of traditional gravity feeding. Compared with chain conveying, the auger structure can reduce the generation of oxide slag in a closed environment and improve the conveying efficiency.

[0030] Example 2: Please refer to the attached document. Figure 1 - Appendix Figure 5 As shown, a second support 12 is fixedly connected to the top of the working base 1, and an injection heating mechanism 3 is fixedly connected to the top of the second support 12. The injection heating mechanism 3 includes an electric push rod 301, a transmission column 302 is fixedly connected to the output end of the electric push rod 301, a set of heating components 303 is provided on the outer wall of the transmission column 302, and an injection head 304 is fixedly connected to one end of the heating components 303.

[0031] The overall effect of Embodiment 2 is that the electric push rod 301 drives the transmission column 302 to move axially, and the linkage heating component 303 heats the injection head 304 circumferentially (controlling the temperature to 600-720℃). At the same time, the injection head 304 uses hydraulic / pneumatic pressure to precisely inject molten aluminum into the mold cavity. The heating component 303 (which is an induction coil) is opened and closed synchronously with the injection action, realizing dynamic coupling of injection and thermal management, reducing energy consumption, and achieving closed-loop control of injection pressure and temperature to avoid cold material blockage or overheating oxidation.

[0032] Example 3: Please refer to the attached document. Figure 1 - Appendix Figure 5 As shown, the top of the conveying housing 13 is fixedly connected to the stirring housing 14, and the stirring housing 14 is provided with a stirring mechanism 4. The stirring mechanism 4 includes a second motor 401, and two crushing rollers 402 are movably inserted into the stirring housing 14. One end of one crushing roller 402 is fixedly connected to the output end of the second motor 401, and one end of each of the two crushing rollers 402 is fixedly connected to a second gear 403, and the outer walls of the two second gears 403 mesh with each other.

[0033] The overall effect of embodiment 3 is that the second motor 401 drives two meshing second gears 403, which in turn drive the counter-rotating crushing rollers 402 to pre-crush and stir the conveyed aluminum alloy blocks. The staggered toothed roller design can crush high-hardness waste materials (such as Fe-containing waste aluminum), and at the same time, the eddy current generated by stirring homogenizes the composition of the aluminum liquid.

[0034] Example 4: Please refer to the attached document. Figure 1 - Appendix Figure 5As shown, a connecting flange 15 is fixedly connected to one end of the conveying housing 13. The inside of the conveying housing 13 is fitted onto the outer wall of the conveying mechanism 2. The inside of the conveying mechanism 2 is fitted onto the outer wall of the injection heating mechanism 3. The top of the first bracket 11 is fixedly connected to the bottom of the first motor 201. The top of the first bracket 11 is fixedly connected to the outer wall of the conveying housing 13. The top of the second bracket 12 is fixedly connected to the bottom of the electric push rod 301. The transmission column 302 is movably inserted into the inside of the auger sleeve 204. The injection head 304 is placed in the cavity between the outer wall of the conveying housing 13 and the inside of the auger sleeve 204.

[0035] The overall effect of embodiment 4 is that modular quick assembly and disassembly are achieved through connecting flange 15, auger sleeve 204 is nested inside conveying shell 13, and injection head 304 extends into the annular cavity between auger sleeve 204 and shell, forming a three-in-one flow channel of "conveying-heating-injection". This coaxial structure reduces heat loss and the overall size is compressed to 2 / 3 of the traditional split equipment, which is suitable for narrow workshop layouts.

[0036] Working Principle: Feeding and Crushing Stage: Aluminum alloy raw materials enter through the inlet of the conveyor shell 13 and are spirally propelled by the auger sleeve 204 of Example 1. When passing through the crushing roller 402 of Example 3, large pieces of material are crushed into uniform particles. Melting and Conveying Synchronous Stage: The crushed aluminum material enters the heating zone under the push of the auger sleeve 204. The heating component 303 of Example 2 radiates heat to the injection head 304 and the surrounding cavity, and the aluminum material melts into liquid in stages. Pressurized Injection Stage: After the liquid aluminum accumulates to a specific capacity, the electric push rod 301 is activated, pushing the transmission column 302 and the injection head 304 forward to pressurize and inject the aluminum liquid into the mold. The heating component 303 dynamically adjusts the temperature according to the feedback of the pressure sensor to prevent solidification or overheating. System Reset: After the injection is completed, the electric push rod 301 retracts, and the auger sleeve 204 continues to convey new material to enter the next cycle.

[0037] The wiring diagrams of the electric actuator 301, the first motor 201, and the second motor 401 in this utility model are common knowledge in the field, and their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control method and wiring layout of the electric actuator 301, the first motor 201, and the second motor 401 will not be explained in detail.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A device for melting aluminum alloy in a die-casting machine, characterized in that, include: A working base (1) is fixedly connected to the top of the working base (1), and a first bracket (11) is fixedly connected to the top of the first bracket (11), and a conveying shell (13) is mounted on the top of the first bracket (11), and a conveying mechanism (2) is fixedly connected to the top of the first bracket (11). The conveying mechanism (2) includes a first motor (201), the output end of the first motor (201) is fixedly connected to a first gear (202), the outer wall of the first gear (202) is meshed with a gear ring (203), and the outer surface of the gear ring (203) is fixedly connected to a auger sleeve (204).

2. The die-casting machine aluminum alloy melting device according to claim 1, characterized in that: The top of the working base (1) is fixedly connected to a second bracket (12), and the top of the second bracket (12) is fixedly connected to an injection heating mechanism (3); The injection heating mechanism (3) includes an electric push rod (301), the output end of which is fixedly connected to a transmission column (302), and a set of heating components (303) is provided on the outer wall of the transmission column (302). One end of the heating component (303) is fixedly connected to an injection head (304).

3. The die-casting machine aluminum alloy melting device according to claim 2, characterized in that: The top of the conveying shell (13) is fixedly connected to the stirring shell (14), and the stirring shell (14) is provided with a stirring mechanism (4); The stirring mechanism (4) includes a second motor (401), and two crushing rollers (402) are movably inserted inside the stirring shell (14). One end of one crushing roller (402) is fixedly connected to the output end of the second motor (401), and one end of each of the two crushing rollers (402) is fixedly connected to a second gear (403), and the outer walls of the two second gears (403) mesh with each other.

4. The die-casting machine aluminum alloy melting device according to claim 3, characterized in that: One end of the conveying housing (13) is fixedly connected to a connecting flange (15), the inside of the conveying housing (13) is fitted onto the outer wall of the conveying mechanism (2), and the inside of the conveying mechanism (2) is fitted onto the outer wall of the injection heating mechanism (3).

5. The die-casting machine aluminum alloy melting device according to claim 4, characterized in that: The top of the first bracket (11) is fixedly connected to the bottom of the first motor (201), and the top of the first bracket (11) is fixedly connected to the outer wall of the conveying housing (13).

6. The die-casting machine aluminum alloy melting device according to claim 5, characterized in that: The top of the second bracket (12) and the bottom of the electric push rod (301) are fixedly connected, and the transmission column (302) is movably inserted into the inside of the auger sleeve (204).

7. The die-casting machine aluminum alloy melting device according to claim 6, characterized in that: The injection head (304) is placed in the cavity between the outer wall of the delivery housing (13) and the inside of the auger sleeve (204).

Images