A highly intelligent differential pressure casting aluminum feeding system

Abstract

The present invention discloses a highly intelligent differential pressure casting aluminum supply system, belonging to the technical field of aluminum alloy casting, which includes a holding furnace body, an aluminum ladle, a workpiece weighing device and a PLC control center; the holding furnace body is provided with an aluminum liquid receiving port, and a horizontally arranged dipping heating device is arranged near the bottom inside the holding furnace body; a sealing structure is arranged outside the aluminum liquid receiving port, and a laser liquid level measuring device is arranged outside the aluminum liquid receiving port; the aluminum ladle is provided with an aluminum tapping pipeline; the aluminum tapping pipeline is docked with the aluminum liquid receiving port; the PLC control center is respectively communicatively connected with the laser liquid level measuring device and the workpiece weighing device, which improves the energy efficiency of differential pressure casting, increases the service life of the equipment, transforms the traditional extensive differential pressure casting production into a quantitative, intelligent and digital advanced manufacturing mode, and reduces costs and increases efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of aluminum alloy casting, and particularly relates to a highly intelligent differential pressure casting aluminum supply system. Background Art

[0002] Differential pressure casting is a casting technique in which a sealed cover is placed outside the mold and filled with compressed gas to keep the mold under a certain pressure of the gas. When the molten metal is filled into the mold, the pressure of the gas in the holding furnace is made greater than the pressure of the gas in the mold, so as to achieve the filling, pressure holding and pressure boosting of the molten metal as in low-pressure casting. The casting solidifies under a higher pressure, so it can ensure the production of castings with higher density. The aluminum alloy workpieces formed by casting can ensure uniformity and density, so as to provide higher mechanical properties while meeting the lightweight requirements of the workpieces and meet the use requirements of complex-force parts. Therefore, it is widely used in the automotive manufacturing industry.

[0003] However, restricted by the traditional differential pressure casting aluminum supply technology, the time for replacing the crucible during single aluminum supply is long; the thermal shock during replacement is large, resulting in a short service life of the aluminum supply equipment; the production rhythm is long and the production efficiency is low; the life of the crucible furnace is short, frequent replacement is required, and the equipment investment is large; the initial casting liquid level is determined by manual visual measurement, with large errors and low accuracy; the single aluminum liquid consumption during casting is an estimated value, with large deviations; the fluctuation of the aluminum liquid supply is large and cannot be quantified or digitized; all these factors lead to the inability to realize the quantitative, digital and intelligent production process in current differential pressure casting, and further improve the equipment use efficiency and achieve energy conservation and emission reduction in differential pressure casting.

[0004] Therefore, there is an urgent need for a new technical solution in the existing technology to solve this problem. Summary of the Invention

[0005] In order to overcome the deficiencies of the existing technology, the present invention provides a highly intelligent differential pressure casting aluminum supply system, which is used to solve the problems of short service life of the aluminum supply equipment, frequent replacement, low production efficiency and the inability to realize quantification, digitization and intelligence in differential pressure casting.

[0006] To achieve the above object, the technical solution adopted by the present invention is: a highly intelligent differential pressure casting aluminum supply system, including a holding furnace body, an aluminum ladle, a workpiece weighing device and a PLC control center; the holding furnace body is provided with an aluminum liquid receiving port, and a horizontal dipping heating device is arranged near the bottom inside the holding furnace body; a sealing structure is arranged outside the aluminum liquid receiving port, and a laser liquid level measuring device is arranged outside the aluminum liquid receiving port; the aluminum ladle is provided with an aluminum discharging pipeline; the aluminum discharging pipeline is docked with the aluminum liquid receiving port; the PLC control center is respectively in communication connection with the laser liquid level measuring device and the workpiece weighing device.

[0007] Preferably, it further includes a transfer cart and a track; the transfer cart moves on the track, and the transfer cart is provided with a pushing and pulling mechanism; an aluminum ladle is placed on the pushing and pulling mechanism.

[0008] Preferably, the holding furnace body includes a heat insulation layer, a backing layer, and a working layer. The working layer is a working layer of silicon carbide castable; the backing layer is a refractory backing layer with fused quartz as the base material, and an anti-aluminum sticking additive to prevent aluminum penetration is additionally added to the backing layer; the heat insulation layer is a heat insulation layer made of a nano heat insulation board.

[0009] Preferably, the horizontally placed impregnation heating device includes a heater body, an outer soft sealing sleeve, a tapered plug, an inner soft seal, a core adjustment plate, a mounting flange, and a positioning component; the outer soft sealing sleeve, the tapered plug, the inner soft seal, the core adjustment plate, the mounting flange, and the positioning component are sleeved on the heater body in sequence from inside to outside; the tapered plug is arranged inside the outer soft sealing sleeve; the inner soft seal is arranged inside the tapered plug; the core adjustment plate includes a top abutting part and an adjustment part; one end of the top abutting part abuts against the inner soft seal, and the other end of the top abutting part is fixedly connected to the adjustment part; the adjustment part is provided with a plurality of through holes and blind holes; a plurality of threaded holes are arranged on the mounting flange; the threaded holes are respectively arranged opposite to the positions of the through holes and the blind holes; a first bolt is installed in the threaded hole opposite to the through hole; a second bolt is installed in the threaded hole opposite to the blind hole; the threaded rod of the first bolt passes through the through hole and abuts against the tapered plug; the threaded rod of the second bolt abuts against the bottom of the blind hole.

[0010] Preferably, the sealing structure includes a tooth-engaging conical surface seal cover, an annular sealing ring, a rotary pressing cylinder, and a swing opening and closing cylinder; the rotary pressing cylinder is used to control the rotation of the annular sealing ring; the swing opening and closing cylinder controls the opening and closing of the tooth-engaging conical surface seal cover through a swing arm.

[0011] Preferably, the aluminum liquid receiving port is arranged on the top surface of the holding furnace body; the aluminum tapping pipeline is an inverted U-shaped aluminum tapping pipeline.

[0012] Preferably, a ceramic liquid level measuring device is arranged at the top inside the holding furnace body.

[0013] The aluminum ladle realizes the function of quantitative aluminum tapping through pressure control, and the aluminum ladle is communicatively connected to the PLC control center.

[0014] Through the above design scheme, the present invention can bring the following beneficial effects:

[0015] 1. Numerical monitoring of the whole process of the amount of aluminum liquid from the first pressurization after receiving aluminum to each differential pressure casting, so as to effectively set the core pressure parameters, precisely produce quantitatively; accurately improve the process quality;

[0016] 2. The operation mode of supply on demand greatly reduces production interruptions and maintenance time;

[0017] 3. The holding furnace with an aluminum liquid receiving port replaces the crucible furnace. It can work under the differential pressure casting machine for a long time without frequent replacement, significantly reducing the waiting time during the production process. Since the holding furnace does not go offline for a long time, the riser pipe of the differential pressure casting machine and the related cooling and detection equipment of the differential pressure casting lid will not be frequently subjected to thermal shock, thus extending the service life of the core production supplies and significantly reducing production costs;

[0018] 4. The heating method of the local heating wire along the cylinder wall of the traditional crucible furnace is changed to a horizontal immersion heater, changing the original radiation heating to a heating method in direct contact with the aluminum liquid. The heat transfer is more direct and effective, with smaller thermal resistance and lower heat loss, improving the energy consumption ratio and reducing the operating production cost;

[0019] 5. Through reasonable setting of the sealing levels, the sealing of the heater body and the installation tapered hole is tightly blocked;

[0020] 6. A ceramic liquid level measuring device is set in the holding furnace to increase safety redundancy and eliminate the risk of aluminum liquid overflow;

[0021] 7. The vertical U-shaped tube aluminum feeding method has a compact structure, small occupied space, reasonable equipment layout, high space utilization rate, and can effectively improve the integration degree of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a top view of a highly intelligent differential pressure casting aluminum supply system of the present invention.

[0023] Figure 2 It is a front view schematic diagram of the holding furnace body and the aluminum ladle of a highly intelligent differential pressure casting aluminum supply system of the present invention.

[0024] Figure 3 It is a front cross-sectional view of the holding furnace body of a highly intelligent differential pressure casting aluminum supply system of the present invention.

[0025] Figure 4 It is a schematic diagram of the sealing structure of the holding furnace body of a highly intelligent differential pressure casting aluminum supply system of the present invention.

[0026] Figure 5 It is a cross-sectional view of the position of the second bolt of the horizontal immersion heating device of a highly intelligent differential pressure casting aluminum supply system of the present invention.

[0027] Figure 6 It is a cross-sectional view of the position of the first bolt of the horizontal immersion heating device of a highly intelligent differential pressure casting aluminum supply system of the present invention.

[0028] Figure 7This is an external view of the core adjustment disc of the horizontal dipping heating device of a highly intelligent differential pressure casting aluminum supply system of the present invention.

[0029] In the figure: 1-insulation furnace body, 11-aluminum liquid receiving port, 12-horizontal dipping heating device, 121-heater body, 122-outer soft sealing sleeve, 123-tapered plug, 124-inner soft sealing member, 125-core adjustment disc, 1251-abutting part, 1252-adjusting part, 1253-through hole, 1254-blind hole, 126-mounting flange, 1261-threaded hole, 127-positioning member, 128-first bolt, 129-second bolt, 13-sealing structure, 131-toothed conical surface sealing cover, 132-annular sealing ring, 133-rotary pressing cylinder, 134-swinging opening and closing cylinder, 135-swing arm, 14-laser liquid level measuring device, 15-thermal insulation layer, 16-backing layer, 17-working layer, 18-ceramic liquid level measuring device, 2-aluminum ladle, 21-aluminum tapping pipe, 3-workpiece weighing device, 4-PLC control center, 5-transfer trolley, 51-pushing and pulling mechanism, 6-rail. Detailed implementation manners

[0030] The following will make a detailed description of the specific implementation manners of the present invention in conjunction with the accompanying drawings.

[0031] It should be particularly noted that the terms "front and back, up and down, left and right" described in the text are only a simplified way of intuitively describing the positional relationship based on the drawings, and are not a limitation on the technical solution.

[0032] To more clearly illustrate the present invention, the following will further describe the present invention in conjunction with preferred embodiments. Those skilled in the art should understand. The content specifically described below is illustrative rather than restrictive. Without departing from the inventive concept and scope set forth in the claims, users can make various changes to the following parameters. To avoid confusing the essence of the present invention, well-known methods and processes are not described in detail.

[0033] As shown in the attached Figures 1 to 7 figures: A highly intelligent differential pressure casting aluminum supply system includes an insulation furnace body 1, an aluminum ladle 2, a workpiece weighing device 3 and a PLC control center 4; the insulation furnace body 1 is provided with an aluminum liquid receiving port 11, and a horizontal dipping heating device 12 is arranged near the bottom inside the insulation furnace body 1; a sealing structure 13 is arranged outside the aluminum liquid receiving port 11, and a laser liquid level measuring device 14 is arranged outside the aluminum liquid receiving port 11; the aluminum ladle 2 is provided with an aluminum tapping pipe 21; the aluminum tapping pipe 21 is docked with the aluminum liquid receiving port 11; the PLC control center 4 is respectively communicatively connected with the laser liquid level measuring device 14 and the workpiece weighing device 3.

[0034] Further, it also includes a transfer trolley 5 and a track 6; the transfer trolley 5 moves on the track 6, and the transfer trolley 5 is provided with a pushing and pulling mechanism 51; the aluminum ladle 2 is placed on the pushing and pulling mechanism 51.

[0035] Further, the holding furnace body 1 includes a heat insulation layer 15, a backing layer 16 and a working layer 17. The working layer 17 is a working layer made of silicon carbide castable. The innermost layer is the working layer, and a high-density castable with a higher silicon carbide content is selected. With the excellent wear resistance and thermal shock resistance of the silicon carbide material, the working layer has excellent density and stability, and can effectively resist the erosion of molten aluminum.

[0036] The backing layer 16 is a refractory backing layer based on fused quartz. The backing layer 16 is additionally added with an anti-sticking aluminum additive to prevent the penetration of molten aluminum; it has good volume stability, can provide strong rigid support, ensure the stability of the refractory when pressure is repeatedly applied, and at the same time add an anti-sticking aluminum additive to prevent the penetration of molten aluminum, making it also serve as a safety barrier layer to avoid the impact on the body mechanism and the shell after the accidental breakage of the working layer, and improve the safety of the equipment.

[0037] The heat insulation layer 15 is a heat insulation layer made of a nano-insulation board. The outermost layer uses a nano-insulation board as the heat insulation layer, which can effectively isolate the heat in the furnace, greatly reduce the heat dissipation of the furnace shell, and improve the energy utilization efficiency; it protects the safety of personnel during operation from touching.

[0038] Further, the horizontally placed impregnation heating device 12 includes a heater body 121, an outer soft sealing sleeve 122, a tapered plug 123, an inner soft sealing member 124, a core adjustment disk 125, a mounting flange 126 and a positioning member 127; the outer soft sealing sleeve 122, the tapered plug 123, the inner soft sealing member 124, the core adjustment disk 125, the mounting flange 126 and the positioning member 127 are sleeved on the heater body 121 in sequence from the inside to the outside; the tapered plug 123 is arranged inside the outer soft sealing sleeve 122; the inner soft sealing member 124 is arranged inside the tapered plug 123; the core adjustment disk 125 includes a top abutting portion 1251 and an adjustment portion 1252; one end of the top abutting portion 1251 abuts against the inner soft sealing member 124, and the other end of the top abutting portion 1251 is fixedly connected to the adjustment portion 1252; the adjustment portion 1252 is provided with a plurality of through holes 1253 and blind holes 1254; the mounting flange 126 is provided with a plurality of threaded holes 1261; the threaded holes 1261 are respectively arranged opposite to the positions of the through holes 1253 and the blind holes 1254; the first bolts 128 are installed in the threaded holes 1261 opposite to the through holes 1253; the second bolts 129 are installed in the threaded holes 1261 opposite to the blind holes 1254; the threaded rod of the first bolt 128 passes through the through hole 1253 and abuts against the tapered plug 123; the threaded rod of the second bolt 129 abuts against the bottom of the blind hole 1254.

[0039] The insulation furnace body 1 is provided with a horizontal immersion heating device 12, which directly heats the aluminum liquid in a heat conduction manner during the casting process, and has the characteristics of high efficiency, fast heating, high system response speed, rapid temperature control accuracy, and fine and stable temperature difference control. At the same time, because the heater body 121 is not in contact with a medium with low thermal conductivity such as air, the life span will not be shortened due to drastic changes in surface load; the impact of thermal shock is effectively reduced, the service life of the heater is increased, and the maintenance and use cost of the equipment is reduced; since the horizontal mounting hole is located below the liquid level, leakage is prone to occur, resulting in production interruption and equipment damage; especially when there is a pressure difference between the furnace and the outside world, leakage is more likely to occur; the present invention adopts a conical soft sealing structure between the heater and the furnace body, and through the reasonable setting of the sealing level, and the setting of the core adjustment disk 125 and the long and short bolts to adjust the inner and outer double-layer compression respectively, the sealing of the heater body and the sealing of the mounting cone hole are both tightly blocked; effectively withstand the pressure fluctuations generated during the production process.

[0040] The sealing structure 13 further includes a gear-engaging conical sealing cover 131, an annular sealing ring 132, a rotary pressing cylinder 133 and a swing opening and closing cylinder 134; the rotary pressing cylinder 133 is used to control the rotation of the annular sealing ring 132; the swing opening and closing cylinder 134 controls the opening and closing of the gear-engaging conical sealing cover 131 through a swing arm 135.

[0041] The sealing structure 13 adopts a toothed clamp cone sealing structure, which provides a pressing force to the aluminum port by driving the cylinder to rotate and press the wedge surface; an annular labyrinth sealing structure is set at the sealing point, and a double-layer annular sealing ring is used to ensure the isolation of internal and external pressures;

[0042] The process of sealing opening and closing is jointly realized by the rotating clamping cylinder 133 and the swinging opening and closing cylinder 134; the rotating clamping cylinder 133 controls whether the toothed conical sealing cover 131 and the annular sealing ring 132 are overlapping or staggered by rotating the annular sealing ring 132. When overlapping, the toothed conical sealing cover 131 is in a fixed state with 0 degree of freedom, and the toothed conical sealing cover 131 cannot be opened; when staggered, the circumferential toothed parts are staggered with each other, and there is no overlapping interference, so that the toothed conical sealing cover 131 can be driven by the swinging opening and closing cylinder 134 along the rotating shaft, leaving the sealing position, and realizing the opening and closing action.

[0043] The entire holding furnace body 1 is a sealed pressure-bearing container. The strength and rigidity of the shell are ensured by selecting steel plates of appropriate thickness and reasonably setting the layout and mechanism. It can resist the deformation caused by the internal and external pressure difference during casting, and can work normally under the sealing pressure of 100t applied to the sealing cover by the differential pressure casting machine.

[0044] The molten aluminum ladle 2 realizes the function of quantitatively discharging aluminum through pressure control. It can be achieved by introducing gas with a set pressure into the molten aluminum ladle. The molten aluminum ladle 2 is provided with a pressure proportional valve and realizes the function through the conversion of pressure and potential energy. The molten aluminum ladle 2 is communicatively connected to the PLC control center 4.

[0045] Furthermore, in order to improve the space utilization rate and enhance the integration degree of the equipment, the molten aluminum receiving port 11 is arranged on the top surface of the holding furnace body 1; the aluminum discharging pipeline 21 is an inverted U-shaped aluminum discharging pipeline. Of course, it can also be arranged that the molten aluminum receiving port 11 is on the side surface of the holding furnace body 1, and the aluminum discharging pipeline 21 is a right-angled shape for horizontal aluminum injection.

[0046] Furthermore, a ceramic liquid level measuring device 18 is arranged at the top inside the holding furnace body 1. A new type of conductive ceramic liquid level measuring device that can work at high temperature for a long time is arranged inside the holding furnace. This material can maintain the conducting state at a relatively high temperature and can also remain stable for a long time, possessing the composite characteristics of metal and ceramic; once the molten aluminum triggers the safety circuit where the conductive ceramic is located, the aluminum water filling operation is immediately stopped, double controlling the safety of the molten aluminum and avoiding the risk of molten aluminum overflow. The conductive ceramic is only set for upper limit detection and does not need to contact the molten aluminum frequently, so it has a longer service life and lower maintenance requirements.

[0047] In specific implementation, the transfer trolley 5 sends the molten aluminum ladle 2 to the docking preparation position of the holding furnace body 1. Then, the differential pressure casting machine relieves the casting pressure, the holding furnace opens the sealing structure 13, and the transfer trolley 5 drives the molten aluminum ladle 2 to align the aluminum discharging pipeline 21 with the docking port of the holding furnace; after confirming that the spatial position is correct, the transfer trolley 5 slowly sends the molten aluminum ladle 2 to the final docking position. Subsequently, the molten aluminum ladle 2 quantitatively transports molten aluminum into the holding furnace according to a preset value; after the molten aluminum transportation is completed, the aluminum discharging pipeline 21 of the molten aluminum ladle 2 is separated from the docking port of the holding furnace in the reverse order of the above procedure; then the sealing structure 13 of the docking port of the holding furnace is closed, and the aluminum receiving process ends. The differential pressure machine pressurizes to resume casting production.

[0048] A laser liquid level measuring device 14 is arranged at the docking port of the holding furnace and can be installed by separately setting up an installation bracket. When the aluminum injection is completed, the liquid level height of the molten aluminum can be accurately measured by the laser, so as to accurately calculate the initial pressure value of differential pressure casting;

[0049] It is communicatively connected to the laser liquid level measuring device 14 through the PLC control center 4 to obtain the height of the aluminum liquid level in the holding furnace, and the pressure value required for the first casting of the differential pressure casting machine is calculated according to the height; the differential pressure casting machine resumes casting production according to this value. After each casting is completed, the cast workpiece is placed on the workpiece weighing device 3. The PLC control center 4 is communicatively connected to the workpiece weighing device 3 to count the aluminum consumption for each casting. When the available aluminum amount is less than the preset value, the PLC control center 4 sends an aluminum feeding request to the conveying trolley, and through reasonable time rhythm setting, the aluminum receiving process is repeated before the aluminum liquid in the holding furnace is used up.

[0050] The present invention improves the energy efficiency of differential pressure casting, increases the service life of the equipment, transforms the traditional extensive differential pressure casting production into an advanced manufacturing mode of quantification, intelligence and digitization, improves the energy efficiency in the differential pressure casting process, optimizes the equipment utilization rate, prolongs the service life of the equipment, and reduces costs and increases efficiency.

[0051] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

Claims

1. A highly intelligent differential pressure casting aluminum feeding system, characterized in that: It includes a holding furnace body (1), an aluminum ladle (2), a workpiece weighing device (3), a PLC control center (4), a transfer trolley (5) and a track (6); the transfer trolley (5) moves on the track (6), and the transfer trolley (5) is provided with a pushing and pulling mechanism (51); the aluminum ladle (2) is placed on the pushing and pulling mechanism (51); the holding furnace body (1) is provided with an aluminum liquid receiving port (11), and a horizontally arranged dipping heating device (12) is arranged near the bottom inside the holding furnace body (1); a sealing structure (13) is arranged outside the aluminum liquid receiving port (11), and a laser liquid level measuring device (14) is arranged outside the aluminum liquid receiving port (11); the aluminum ladle (2) is provided with an aluminum discharging pipe (21); the aluminum discharging pipe (21) is docked with the aluminum liquid receiving port (11); the PLC control center (4) is communicatively connected with the laser liquid level measuring device (14), and the PLC control center (4) is communicatively connected with the workpiece weighing device (3). After each casting is completed, the cast workpiece is placed on the workpiece weighing device (3) to count the aluminum liquid consumption for each casting. When the available amount of aluminum liquid is less than the preset value, the PLC control center (4) sends a request for delivering aluminum to the transfer trolley (5). The horizontally arranged dipping heating device (12) includes a heater body (121), an outer soft sealing sleeve (122), a tapered plug (123), an inner soft sealing member (124), a core adjusting disk (125), a mounting flange (126) and a positioning member (127); the outer soft sealing sleeve (122), the tapered plug (123), the inner soft sealing member (124), the core adjusting disk (125), the mounting flange (126) and the positioning member (127) are sleeved on the heater body (121) in sequence from the inside to the outside; the tapered plug (123) is arranged inside the outer soft sealing sleeve (122); the inner soft sealing member (124) is arranged inside the tapered plug (123); the core adjusting disk (125) includes a top abutting portion (1251) and an adjusting portion (1252); one end of the top abutting portion (1251) abuts against the inner soft sealing member (124), and the other end of the top abutting portion (1251) is fixedly connected with the adjusting portion (1252); the adjusting portion (1252) is provided with a plurality of through holes (1253) and blind holes (1254); a plurality of threaded holes (1261) are arranged on the mounting flange (126); the threaded holes (1261) are respectively arranged opposite to the positions of the through holes (1253) and the blind holes (1254); first bolts (128) are installed in the threaded holes (1261) opposite to the through holes (1253); second bolts (129) are installed in the threaded holes (1261) opposite to the blind holes (1254); the threaded rod of the first bolt (128) passes through the through hole (1253) and abuts against the tapered plug (123); the threaded rod of the second bolt (129) abuts against the bottom of the blind hole (1254).

2. The high-intelligence differential pressure casting aluminum supply system according to claim 1, characterized in that: The heat preservation furnace body (1) includes a heat insulation layer (15), a backing layer (16) and a working layer (17).

3. The high-intelligence differential pressure casting aluminum supply system according to claim 2, wherein: The working layer (17) is a working layer made of silicon carbide castable; the backing layer (16) is a refractory backing layer with fused quartz as the base material, and an anti-sticking aluminum additive for preventing molten aluminum penetration is additionally added to the backing layer (16); the heat insulation layer (15) is a heat insulation layer made of a nano heat preservation board.

4. The high-intelligence differential pressure casting aluminum supply system according to claim 1, wherein: The sealing structure (13) includes a toothed conical surface sealing cover (131), an annular sealing ring (132), a rotary pressing cylinder (133) and a swing opening and closing cylinder (134); the rotary pressing cylinder (133) is used to control the rotation of the annular sealing ring (132); the swing opening and closing cylinder (134) controls the opening and closing of the toothed conical surface sealing cover (131) through a swing arm (135).

5. The high-intelligence differential pressure casting aluminum feeding system according to claim 1, characterized in that: The molten aluminum receiving port (11) is arranged on the top surface of the heat preservation furnace body (1); the aluminum tapping pipeline (21) is an inverted U-shaped aluminum tapping pipeline.

6. The high-intelligence differential pressure casting aluminum feeding system according to claim 1, wherein: A ceramic liquid level measuring device (18) is arranged at the top inside the heat preservation furnace body (1).

7. The high-intelligence differential pressure casting aluminum supply system according to claim 1, characterized in that: The molten aluminum ladle (2) realizes the function of quantitative aluminum tapping through pressure control, and the molten aluminum ladle (2) is communicatively connected with the PLC control center (4).

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