Automatic stream inoculation device for casting of lost foam casting

Abstract

The invention relates to the technical field of casting, and provides a lost foam casting casting automatic stream inoculation device which comprises a supporting frame, the top end of the supporting frame is connected with a material storage barrel through a moving assembly, the bottom end of the material storage barrel is fixedly connected with a conical flow guide cover, and the bottom end of the conical flow guide cover is fixedly connected with a discharging port. A discharging assembly is fixedly connected to the bottom end of the discharging opening, a balancing weight is fixedly connected to the bottom end of the supporting frame, a sieve plate is arranged on the inner wall of the top end of the storage barrel, a cover is arranged at the top end of the storage barrel, a first control assembly is arranged on the outer wall of the moving assembly, and a second control assembly is arranged on the outer wall of the discharging assembly. A displacement sensor and a controller are used for accurately regulating and controlling a hydraulic rod to drive a material storage barrel, so that nonuniform inoculation caused by conveying position deviation of an inoculant is avoided; the motor rotating speed interval is preset according to the casting specification, the auger rotating speed is adjusted through the frequency converter to achieve quantitative conveying, and the casting inoculation effect is consistent.

Description

Technical Field

[0001] This invention relates to the field of casting technology, specifically to an automatic inoculation device for lost foam casting. Background Technology

[0002] In modern manufacturing, lost foam casting technology, with its advantages of no need for mold removal, no parting line, high dimensional accuracy of castings, and simple molding process, is widely used in the production of complex castings in the automotive, construction machinery, and rail transportation industries. As downstream industries continuously raise their requirements for casting quality, especially the increasingly stringent requirements for the stability of casting mechanical properties (such as strength, toughness, and hardness), inoculation treatment, as a key step in the lost foam casting process, directly determines the final quality of the casting. By adding an inoculant to the molten metal during casting, the grain size of the casting can be effectively refined, and the as-cast structure can be improved, thereby avoiding defects such as shrinkage porosity and cracks, and ensuring that the casting possesses mechanical properties that meet design standards. Therefore, efficient and precise in-flow inoculation devices have become an important support for promoting the high-quality and large-scale development of lost foam casting technology.

[0003] In current lost foam casting production, the inoculation process largely relies on traditional manual operation or semi-automated equipment. For controlling the delivery position of the inoculant, existing technologies typically involve manually observing the pouring gate position and manually pushing the storage tank or adjusting the delivery direction using simple mechanical structures. However, manual operation suffers from reaction delays, and mechanical structures lack real-time position feedback and precise control mechanisms. The accuracy of the storage tank's movement is difficult to guarantee, making it highly susceptible to inoculant delivery deviating from the target casting position. This results in uneven inoculant distribution within the molten metal, with some areas exhibiting coarse grains due to insufficient inoculant, while other areas have excessive inoculant concentration. Ultimately, this leads to uneven inoculation in the casting, affecting the overall stability of the casting's mechanical properties. Meanwhile, in terms of controlling the amount of inoculant added, existing equipment mostly uses a screw conveyor with a fixed rotation speed to deliver the inoculant, which cannot flexibly adjust the delivery amount according to the process requirements of castings of different specifications. When the specifications of the casting change, if the fixed rotation speed is still used, small-sized castings will have excessively fine microstructure and excessive hardness due to excessive inoculant addition, or large-sized castings will have insufficient grain refinement and reduced toughness due to insufficient inoculant addition. Moreover, there are operational errors when manually adjusting the rotation speed parameters, making it difficult to form a standardized parameter range, which further aggravates the differences in inoculation effect of castings of different specifications and cannot meet the requirements for the consistency of casting quality in large-scale production. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an automatic in-flow inoculation device for lost foam casting, which solves the problems of difficult position control and inaccurate quantitative measurement in existing lost foam casting in-flow inoculation devices, thus affecting the quality of castings.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a stamping device for ferrous metal smelting, comprising a support frame, a storage tank connected to the top of the support frame via a movable component, a conical guide shroud fixedly connected to the bottom of the storage tank, a discharge port fixedly connected to the bottom of the conical guide shroud, a discharge component fixedly connected to the bottom of the discharge port, a counterweight fixedly connected to the bottom of the support frame, a sieve plate provided on the inner wall of the top of the storage tank, a lid provided on the top of the storage tank, a control component one provided on the outer wall of the movable component, a control component two provided on the outer wall of the discharge component, and a transparent observation window fixedly connected to the outer wall of the storage tank. The transparent observation window is arranged along the height direction of the storage tank, and volume scale lines are printed on the surface of the transparent observation window, with the interval between adjacent scale lines corresponding to 5%-15% of the volume of the storage tank.

[0006] Preferably, the movable component includes a movable frame slidably connected to the top of the support frame, the storage bin is fixedly connected to the front end of the movable frame, a hydraulic rod is provided on the rear side of the top of the support frame, and the drive end of the hydraulic rod is fixedly connected to the rear end of the movable frame.

[0007] Preferably, the discharge assembly includes a conveying pipe fixedly connected to the bottom end of the discharge port, an auger rotatably connected to the inner wall of the conveying pipe, a motor provided at the rear end of the conveying pipe, and the drive end of the motor fixedly connected to the rear end of the auger.

[0008] Preferably, the control component includes a displacement sensor and a first controller; The displacement sensor is fixedly connected to the side of the mobile frame and is used to collect the position data of the mobile frame in real time. The first controller is fixedly connected to the side of the support frame and is electrically connected to the displacement sensor and the hydraulic rod respectively. It is used to control the extension and retraction stroke of the hydraulic rod according to the position data fed back by the displacement sensor.

[0009] Preferably, the axis of the conveying pipe is inclined downward at an angle of 15°-45° to the horizontal direction, and the gap between the spiral blades of the auger and the inner wall of the conveying pipe is 0.2mm-1mm.

[0010] Preferably, the second control component includes a frequency converter and a second controller; The frequency converter is connected to the motor and is used to adjust the output speed of the motor; the second controller is fixedly connected to the outer wall of the storage tank, the second controller is connected to the frequency converter, and the second controller has preset motor speed parameter ranges corresponding to different casting specifications, which are used to control the frequency converter to output the corresponding frequency range according to the casting specification instructions.

[0011] Preferably, the aperture of the sieve plate is 0.5mm-3mm, and the edge of the sieve plate is detachably connected to the inner wall of the top of the storage bucket by a buckle; the upper surface of the sieve plate is also fixedly connected with a ring handle, and the outer wall of the ring handle is wrapped with an anti-slip rubber sleeve with a thickness of 1mm-3mm.

[0012] Preferably, a material level sensor is also fixedly connected to the top of the inner wall of the storage tank. The material level sensor is electrically connected to the second controller and is used to send a replenishment signal to the second controller when the inoculant content in the storage tank is lower than 10%-30% of the total volume of the storage tank.

[0013] An automatic in-flow inoculation method for lost foam casting includes, Step 1: Check the status of the device and ensure that all components are connected properly. Add inoculant to the storage tank. The inoculant will enter the bottom of the storage tank after being filtered through the sieve plate. Step 2: Based on the casting position, the first controller receives displacement sensor data and controls the hydraulic rod to drive the storage bucket to the target position; Step 3: According to the casting specifications, the motor speed parameters are set, and the second controller controls the frequency converter to adjust the motor speed, driving the auger to rotate. The inoculant enters the conveying pipe through the conical guide shroud and the discharge port, and is quantitatively conveyed to the casting flow by the auger. Step 4: During the casting process, the inoculant level is observed through a transparent observation window. When the level sensor detects that the level is below the threshold, an audible and visual alarm is triggered, and staff replenish the inoculant in a timely manner. Step 5: After casting is completed, turn off the motor and hydraulic rod, clean the residual inoculant inside the device, and periodically disassemble the screen plate to clean impurities.

[0014] Preferably, in step five, the screen plate is periodically disassembled and cleaned of impurities by opening the buckle and pulling up the ring handle to disassemble and clean it.

[0015] Working principle: A hydraulic rod drives a moving frame, causing the storage tank to slide on top of the support frame. A displacement sensor monitors the position data of the moving frame in real time and feeds it back to the first controller. The first controller then precisely controls the extension and retraction of the hydraulic rod, aligning the conical guide shroud, discharge port, and output end of the conveying pipe at the bottom of the storage tank with the casting position. A sieve plate on the inner wall of the top of the storage tank filters the added inoculant. The sieve plate is detachably connected by a snap-fit ​​and has a ring handle with an anti-slip rubber sleeve on its upper surface for easy periodic disassembly and cleaning of impurities. A transparent observation window along the height of the outer wall of the storage tank, along with volume markings spaced 5%-15% of the storage tank's volume, completes the process. The inoculant level is displayed in real time. When the level sensor detects that the level is lower than 10%-30% of the total volume, it sends a replenishment signal to the second controller and triggers an audible and visual alarm. The second controller controls the frequency converter to adjust the output speed of the motor according to the casting specification instructions. The motor drives the auger inside the conveying pipe with a gap of 0.2mm-1mm between the auger and the pipe wall. The conveying pipe is set at a downward angle of 15°-45°. The auger quantitatively delivers the inoculant from the conical guide shroud through the outlet into the casting flow to achieve in-flow inoculant. After casting is completed, the motor and hydraulic rod are turned off, the residual inoculant inside the device is cleaned, and the counterweight at the bottom of the support frame ensures the overall stability.

[0016] This invention provides an automatic in-flow inoculation device for lost foam casting. It has the following beneficial effects: 1. This invention uses a displacement sensor to provide real-time feedback of position data, and combines this with a controller to precisely control the movement of the hydraulic rod driving the storage tank. This allows the inoculant to be quickly delivered to the target casting position, avoiding uneven inoculation caused by positional deviation.

[0017] 2. This invention presets the motor speed parameter range according to the casting specifications and adjusts the auger speed with the help of a frequency converter, which can realize the quantitative delivery of inoculant, accurately control the amount of inoculant added, prevent the mechanical properties of the casting from being affected by too much or too little addition, and ensure the consistency of inoculation effect for castings of different specifications. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the material conveying pipe structure of the present invention; Figure 3 This is a flowchart of the present invention.

[0019] The components include: 1. Support frame; 2. Counterweight; 3. Hydraulic rod; 4. Moving frame; 5. Storage hopper; 6. Conical guide shroud; 7. Discharge port; 8. Conveying pipe; 9. Cover; 10. Screen plate; 11. Screw conveyor; 12. Motor. Detailed Implementation

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

[0021] Example: Please see the appendix Figure 1 and attached Figure 2This invention provides an automatic inoculation device for lost foam casting, comprising a support frame 1, a movable frame 4 slidably connected to the top of the support frame 1, a storage tank 5 fixedly connected to the front end of the movable frame 4, a hydraulic rod 3 disposed on the rear side of the top of the support frame 1, the driving end of the hydraulic rod 3 fixedly connected to the rear end of the movable frame 4, a conical guide shroud 6 fixedly connected to the bottom end of the storage tank 5, a discharge port 7 fixedly connected to the bottom end of the conical guide shroud 6, a conveying pipe 8 fixedly connected to the bottom end of the discharge port 7, an auger 11 rotatably connected to the inner wall of the conveying pipe 8, a motor 12 disposed at the rear end of the conveying pipe 8, and the driving end of the motor 12 fixedly connected to... Connected to the rear end of the auger 11, the conveying pipe 8 is inclined downwards at an angle of 15°-45° to the horizontal direction. The gap between the spiral blades of the auger 11 and the inner wall of the conveying pipe 8 is 0.2mm-1mm. A counterweight 2 is fixedly connected to the bottom end of the support frame 1. A screen plate 10 is provided on the inner wall of the top of the storage bin 5. The aperture of the screen plate 10 is 0.5mm-3mm, and the edge of the screen plate 10 is detachably connected to the inner wall of the top of the storage bin 5 by a snap fastener. A ring handle is also fixedly connected to the upper surface of the screen plate 10. The outer wall of the ring handle is covered with an anti-slip rubber sleeve with a thickness of 1mm-3mm. The top of the storage tank 5 is equipped with a cover 9, a displacement sensor, and a first controller. The displacement sensor is fixedly connected to the side of the moving frame 4 to collect the position data of the moving frame 4 in real time. The first controller is fixedly connected to the side of the support frame 1 and is electrically connected to the displacement sensor and the hydraulic rod 3. It is used to control the extension and retraction stroke of the hydraulic rod 3 according to the position data fed back by the displacement sensor. A frequency converter and a second controller are also included. The frequency converter is connected to the motor 12 and is used to adjust the output speed of the motor 12. The second controller is fixedly connected to the outer wall of the storage tank 5 and is connected to the frequency converter. The second controller has different preset settings. The motor speed parameter range corresponding to the casting specifications is used to control the inverter 15 to output the corresponding frequency range according to the casting specification instructions. A transparent observation window is also fixedly connected to the outer wall of the storage tank 5. The transparent observation window is set along the height direction of the storage tank 5, and the surface of the transparent observation window is printed with volume scale lines. The interval between adjacent scale lines corresponds to 5%-15% of the volume of the storage tank 5. A material level sensor is also fixedly connected to the top of the inner wall of the storage tank 5. The material level sensor is electrically connected to the second controller and is used to send a replenishment signal to the second controller when the inoculant content in the storage tank 5 is lower than 10%-30% of the total volume of the storage tank. Specifically, the support frame 1 is made of Q235 steel plate and welded to its bottom. The counterweight 2 is made of cast iron and weighs 80kg to ensure the overall stability of the device. The movable frame 4 is slidably connected to the top of the support frame 1 through a linear slide rail. The linear slide rail is of model HGR20. The hydraulic rod 3 is a single-acting hydraulic cylinder of model HSG01-125 with a maximum extension stroke of 500mm and a rated working pressure of 16MPa. The storage tank 5 is made of 304 stainless steel with a volume of 50L. A sieve plate 10 with a 2mm aperture is detachably connected to its inner wall via a snap-fit ​​mechanism. A ring-shaped handle is welded to the upper surface of the sieve plate 10, and the outer wall is covered with a 2mm thick nitrile rubber anti-slip sleeve for easy disassembly and cleaning. The threaded cap 9 at the top of the storage tank 5 is made of transparent acrylic, allowing for easy observation of the inoculant's condition. A transparent observation window made of borosilicate glass, welded to the outer wall of the storage tank 5, is 300mm long and runs along the height of the tank. Volume scale lines are printed on the observation window, with adjacent scale lines corresponding to 10% of the storage tank 5's volume (5L), allowing for easy monitoring of the remaining inoculant level. A level sensor, model C12-300N, is bolted to the top of the inner wall of the storage tank 5. Its detection threshold is set to 20% of the total storage tank volume (10L). When the inoculant level falls below 10L, a replenishment signal is immediately sent to the second controller. A conical guide shroud 6 is welded and fixed to the bottom of the storage tank 5, with a taper set at 60° to ensure that the inoculant can flow smoothly into the outlet 7. The outlet 7 is connected to the conveying pipe 8 by a flange. The conveying pipe 8 is made of 304 stainless steel with an inner diameter of 50mm. Its axis is inclined downward at a 30° angle to the horizontal direction. The auger 11, which is rotatably connected to the inner wall of the conveying pipe 8, is made of 45# steel with heat treatment. The gap between its spiral blades and the inner wall of the conveying pipe 8 is controlled at 0.5mm to ensure that there is no leakage or residue during the inoculant transportation process. The motor 12, model Y90S-4, is fixed to the rear end of the conveying pipe 8 via a motor bracket. With a power of 1.1kW, motor 12 is electrically connected to frequency converter 15 (model VFD015M43B). The second controller (model STM32F103C8T6) is fixed on the mounting plate on the outer wall of the storage hopper 5. It has three preset motor speed parameter ranges corresponding to the casting specifications: when the casting weight is 5-10kg, the motor speed is controlled at 100-200r / min; when the casting weight is 10-20kg, the motor speed is controlled at 200-300r / min; when the casting weight is greater than 20kg, the motor speed is controlled at 300-400r / min.The displacement sensor, model KTC-500, is bolted to the side of the movable frame 4. Its detection accuracy is ±0.05mm. It can collect the position data of the movable frame 4 in real time and transmit it to the first controller (model PLCS7-200SMART). The first controller controls the extension and retraction stroke of the hydraulic rod 3 according to the preset casting position coordinates (such as three levels: 100mm, 200mm, and 300mm from the front end of the support frame 1), so as to achieve precise positioning of the storage bucket 5.

[0022] Please see the appendix Figure 3 An automatic in-flow inoculation method for lost foam casting, comprising, Step 1: Check the status of the device and ensure that all components are connected properly. Add inoculant to the storage tank 5. The inoculant enters the bottom of the storage tank 5 after being filtered through the sieve plate 10. Step 2: Based on the casting position, the first controller receives displacement sensor data and controls the hydraulic rod 3 to drive the storage tank 5 to move to the target position; Step 3: According to the casting specifications, by setting the speed parameters of motor 12, the second controller controls the frequency converter to adjust the speed of motor 12, driving the auger 11 to rotate. The inoculant enters the conveying pipe 8 through the conical guide shroud 6 and the discharge port 7, and is quantitatively conveyed to the casting flow by the auger 11. Step 4: During the casting process, the inoculant level is observed through a transparent observation window. When the level sensor detects that the level is below the threshold, an audible and visual alarm is triggered, and staff replenish the inoculant in a timely manner. Step 5: After casting is completed, turn off motor 12 and hydraulic rod 3, clean the residual inoculant inside the device, and periodically disassemble screen plate 10 to clean impurities. The periodic disassembly of screen plate 10 in step 5 to clean impurities is done by opening the buckle and pulling up the ring handle to disassemble and clean it. Specifically, this embodiment takes a lost foam cast iron part with a casting weight of 15kg as an example and performs an automatic inoculation operation: In step one, the operator first checks the connection status of each component of the device, confirming that the connection between the hydraulic rod 3 and the moving frame 4, and the connection between the motor 12 and the auger 11 are not loose. Then, the cover 9 is opened, and ferrosilicon inoculant with a particle size of 0.8-2mm is poured into the storage tank 5. The inoculant is filtered through the sieve plate 10 (pore size 2mm) to remove agglomerated impurities larger than 2mm before entering the bottom of the storage tank 5 until the inoculant level reaches the 40L mark through the transparent observation window. Then, the cover 9 is closed. In step two, the operator inputs "15kg casting" into the first controller. Upon receiving the "casting position" command, the first controller receives the initial position data of the moving frame 4 (e.g., 50mm from the front end of the support frame 1) from the displacement sensor. It then controls the hydraulic rod 3 to extend 300mm, driving the moving frame 4 to move the storage bucket 5 to the target position 150mm directly above the casting port. The displacement sensor provides real-time position data to ensure the positioning error does not exceed ±0.1mm. In step three, the operator selects the "10-20kg casting" specification command on the second controller. The second controller then calls the preset motor speed parameter range (200-300r / min) and controls the frequency converter 15 to output the corresponding frequency (50Hz) to adjust... When motor 12 reaches a speed of 250 r / min, it drives auger 11 to rotate. The inoculant in storage tank 5 enters the conveying pipe 8 through conical guide shroud 6 and outlet 7, and is quantitatively conveyed to the casting stream by auger 11 at a rate of 1.2 kg / min, achieving in-flow inoculation. In step four, during the casting process, the operator observes the inoculant level in real time through a transparent observation window. When the inoculant level in storage tank 5 drops to 10L (20% of the total volume), the level sensor sends a replenishment signal to the second controller. The second controller triggers the audible and visual alarm (model LTE-1101J), emitting a red warning light and a "beep" alarm sound. The operator immediately activates the alarm. Add inoculant to 35L after opening the lid 9 to ensure the casting process is uninterrupted; in step five, after casting is completed, the worker presses the "stop" button on the second controller, the motor 12 stops running, and at the same time the first controller controls the hydraulic rod 3 to retract, driving the moving frame 4 to return to the initial position. Then the worker opens the cleaning port at the end of the conveying pipe 8 to clean the residual inoculant inside. Every week, the worker opens the buckle to remove the screen plate 10 by pulling up the ring handle (anti-slip rubber sleeve to prevent hand slippage), blows away the residual impurities on the surface with compressed air, and reinstalls it on the inner wall of the top of the storage tank 5 through the buckle to ensure that the filtration effect meets the standard for the next use.

[0023] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic inoculation device for lost foam casting, characterized in that, include: A support frame (1) is provided with a storage tank (5) connected to the top of the support frame (1) via a moving component. A conical guide hood (6) is fixedly connected to the bottom of the storage tank (5). A discharge port (7) is fixedly connected to the bottom of the conical guide hood (6). A discharge component is fixedly connected to the bottom of the discharge port (7). A counterweight (2) is fixedly connected to the bottom of the support frame (1). A sieve plate (10) is provided on the inner wall of the top of the storage tank (5). A cover (9) is provided on the top of the storage tank (5). A control component one is provided on the outer wall of the moving component. A control component two is provided on the outer wall of the discharge component. A transparent observation window is also fixedly connected to the outer wall of the storage tank (5). The transparent observation window is set along the height direction of the storage tank (5), and the surface of the transparent observation window is printed with volume scale lines. The interval between adjacent scale lines corresponds to 5%-15% of the volume of the storage tank (5).

2. The automatic inoculation device for lost foam casting according to claim 1, characterized in that, The moving component includes a moving frame (4) slidably connected to the top of the support frame (1), a storage bucket (5) fixedly connected to the front end of the moving frame (4), and a hydraulic rod (3) provided on the rear side of the top of the support frame (1), with the driving end of the hydraulic rod (3) fixedly connected to the rear end of the moving frame (4).

3. The automatic inoculation device for lost foam casting according to claim 1, characterized in that, The discharge assembly includes a conveying pipe (8) fixedly connected to the bottom of the discharge port (7). An auger (11) is rotatably connected to the inner wall of the conveying pipe (8). A motor (12) is provided at the rear end of the conveying pipe (8). The drive end of the motor (12) is fixedly connected to the rear end of the auger (11).

4. The automatic inoculation device for lost foam casting according to claim 2, characterized in that, The control component includes a displacement sensor and a first controller; The displacement sensor is fixedly connected to the side of the moving frame (4) and is used to collect the position data of the moving frame (4) in real time. The first controller is fixedly connected to the side of the support frame (1) and is electrically connected to the displacement sensor and the hydraulic rod (3) respectively. It is used to control the extension and retraction stroke of the hydraulic rod (3) according to the position data fed back by the displacement sensor.

5. The automatic inoculation device for lost foam casting according to claim 3, characterized in that, The axis of the conveying pipe (8) is inclined downward at an angle of 15°-45° with the horizontal direction, and the gap between the spiral blade of the auger (11) and the inner wall of the conveying pipe (8) is 0.2mm-1mm.

6. The automatic inoculation device for lost foam casting according to claim 3, characterized in that, The second control component includes a frequency converter and a second controller; The inverter is connected to the motor (12) and is used to adjust the output speed of the motor (12); the second controller is fixedly connected to the outer wall of the storage tank (5), the second controller is connected to the inverter, and the second controller has preset motor speed parameter ranges corresponding to different casting specifications, which are used to control the inverter (15) to output the corresponding frequency range according to the casting specification instructions.

7. The automatic inoculation device for lost foam casting according to claim 1, characterized in that, The aperture of the sieve plate (10) is 0.5mm-3mm, and the edge of the sieve plate (10) is detachably connected to the inner wall of the top of the storage bucket (5) by a buckle; the upper surface of the sieve plate (10) is also fixedly connected with a ring handle, and the outer wall of the ring handle is wrapped with an anti-slip rubber sleeve with a thickness of 1mm-3mm.

8. The automatic inoculation device for lost foam casting according to claim 6, characterized in that, A material level sensor is also fixedly connected to the top of the inner wall of the storage tank (5). The material level sensor is electrically connected to the second controller and is used to send a replenishment signal to the second controller when the amount of inoculant in the storage tank (5) is lower than 10%-30% of the total volume of the storage tank.

9. An automatic in-flow inoculation method for lost foam casting, using any one of the automatic in-flow inoculation devices for lost foam casting as described in claims 1-8, characterized in that, include, Step 1: Check the status of the device and ensure that all components are connected normally. Add inoculant to the storage tank (5). The inoculant enters the bottom of the storage tank (5) after being filtered through the sieve plate (10). Step 2: Based on the casting position, the first controller receives displacement sensor data and controls the hydraulic rod (3) to drive the storage bucket (5) to move to the target position; Step 3: According to the casting specifications, by setting the speed parameters of the motor (12), the second controller controls the frequency converter to adjust the speed of the motor (12), driving the auger (11) to rotate. The inoculant enters the conveying pipe (8) through the conical guide shroud (6) and the discharge port (7), and is quantitatively conveyed to the casting flow by the auger (11). Step 4: During the casting process, the inoculant level is observed through a transparent observation window. When the level sensor detects that the level is below the threshold, an audible and visual alarm is triggered, and staff replenish the inoculant in a timely manner. Step 5: After casting is completed, turn off the motor (12) and hydraulic rod (3), clean the residual inoculant inside the device, and periodically disassemble the screen plate (10) to clean impurities.

10. The automatic inoculation method for lost foam casting according to claim 9, characterized in that, In step five, the screen plate (10) is periodically disassembled to clean impurities. This is done by opening the buckle and pulling up the ring handle to disassemble and clean it.

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