A graphite-based automatic cleaning device and method

Abstract

This application relates to an automatic cleaning device and method for graphite molds, controlled by a control system. The system includes a conveying system for transporting the graphite mold to the cleaning station; a limiting system including a front-end limiting member that blocks the forward movement of the casing; a cleaning system including a miniature crushing rod fixed to a rotating frame, a vertical brush head rotatably mounted on the rotating frame, and a scraping head mounted on the rotating frame and extending outwards. The rotating frame is driven by a main drive motor. The miniature crushing rod is used to initially crush large sand clumps at a set height. The scraping head is positioned behind the rotating miniature crushing rod for secondary cleaning of loosened and residual sand and gravel. The scraping head flexibly contacts the wall of the sand-hanging trough. The vertical brush head is connected to the rotating motor via a pressure adjustment component; a lifting system is used to raise and lower the cleaning system; and a positioning system is used to position the graphite mold and the fixed frame. This application improves cleaning quality and efficiency, and reduces the probability of wear on the graphite mold.

Description

Technical Field

[0001] This application relates to the field of automatic cleaning devices and methods of a graphite type. Background Technology

[0002] Graphite mold casting is a casting method in which metal is poured into a graphite mold (a mold made of graphite material). After each graphite mold casting is completed, the coating and sand particles on the large ring plane of the model need to be cleaned, and the hardened sand and gravel in the sand-hanging groove need to be loosened for subsequent use.

[0003] The cleaning and sand loosening work on the existing production line is done by workshop workers. Manual cleaning has the following drawbacks: (1) The cleaning cycle is long and the cleaning efficiency is not high, which reduces the production efficiency of metal castings to a certain extent; (2) The cleaning quality is difficult to guarantee, and the cost of graphite molds is high. If manual cleaning is wrong, it will easily damage the graphite molds, leading to an increase in production costs; (3) The labor intensity of workers is high, and the working environment temperature is high, which poses certain safety hazards.

[0004] Regarding the aforementioned technologies, the inventors believe that designing a complete automated cleaning process to ensure cleaning quality while avoiding wear on the graphite mold is an urgent problem to be solved. Summary of the Invention

[0005] In order to achieve fully automatic cleaning of graphite, ensure cleaning quality, and reduce the probability of wear on graphite during the cleaning process, this application provides an automatic cleaning device and method for graphite.

[0006] The graphite-based automatic cleaning device and method provided in this application adopt the following technical solution:

[0007] Firstly, the graphite-based automatic cleaning device provided in this application adopts the following technical solution:

[0008] A graphite-based automatic cleaning device, controlled by a control system, includes:

[0009] A conveying system is used to transport a fixed box containing graphite to a predetermined cleaning station;

[0010] A limit system is used to limit the movement of the box at the cleaning station, including a front limit component for blocking the front end of the box's movement and triggering a stop command of the conveying system after the box is in place;

[0011] The cleaning system, integrated on a rotating frame, includes a miniature crushing rod fixed to the rotating frame and extending downwards, a vertical brush head rotatably mounted on the rotating frame for cleaning large ring-shaped vertical surface gravel, and a sand scraper head mounted on the rotating frame and extending outwards. The rotating frame is driven to rotate by a main drive motor. The miniature crushing rod is used to initially crush large sand clumps at a set height. The sand scraper head is located behind the rotating miniature crushing rod for secondary cleaning of loose and remaining gravel. The sand scraper head is in flexible contact with the wall of the sand hanging trough. The vertical brush head is connected to a rotating motor mounted on the rotating frame through a clamping force adjustment component.

[0012] The lifting system has a main frame extending along the height direction at the cleaning station. The main drive motor and the rotating frame are integrated on the fixed frame. The lifting system is set on the main frame and its end is connected to the fixed frame to drive the cleaning system to lift and lower.

[0013] The positioning system includes a positioning element disposed on the housing for positioning in conjunction with the fixed frame after the cleaning system has moved into place.

[0014] By adopting the above technical solution, during use, the box containing the graphite pattern is placed on the conveying system. After the conveying system is started, the graphite pattern is transported to the cleaning station. After the box moves into position, it touches the front limit component. The front limit component sends a trigger signal to the control system, which then controls the conveying system to stop conveying, so that the graphite pattern stops at the cleaning station for subsequent cleaning. Afterward, the lifting system starts and drives the fixed frame to move, so that the cleaning system moves to the pre-set position. After the cleaning system moves into position, the fixed frame and the positioning component on the box are precisely positioned, avoiding the graphite pattern from shifting due to vibration during the cleaning process, and reducing the probability that the graphite pattern will be scratched by the micro-crushing rod due to the graphite pattern deviating from the preset position.

[0015] The control system controls the position of the miniature crusher bar after it descends, which can initially crush large sand clumps of a set height (volume). Then, the main drive motor and the rotary motor are started. When the main drive motor rotates, it drives the miniature crusher bar, the vertical brush head and the sand scraper head to rotate in a circle. Since the sand scraper head is located behind the rotating miniature crusher bar, the miniature crusher bar first crushes the large sand clumps, and then the sand scraper head loosens the small sand clumps left behind after the miniature crusher bar is cleaned, so as to realize the simultaneous removal of large sand clumps and improve work efficiency.

[0016] Furthermore, because the scraper head and the wall of the sand-hanging groove are in flexible contact, the clamping force required during cleaning can be met, loosening any sand residue left on the groove and ensuring cleaning quality. If the graphite mold accidentally deviates from its preset position, the scraper head can also be flexibly adjusted to maintain contact with the graphite mold surface, avoiding hard contact and reducing the probability of scratching or damaging the mold. The rotating vertical brush head cleans the contact area, thoroughly cleaning the large annular plane of the graphite mold. The cleaning intensity of the vertical brush head can be adjusted by regulating the clamping force between the vertical brush head and the large annular plane of the graphite mold. The cleaning intensity can be adaptively adjusted based on the amount of sand adhering to the graphite mold, ensuring cleaning quality and improving cleaning effectiveness while reducing the probability of wear on the graphite mold. This application enables automatic cleaning of graphite molds, saving manpower and improving cleaning efficiency and quality while avoiding wear on the graphite mold.

[0017] Preferably, the scraping head is fixed to the head of the flexible push rod to achieve flexible adjustment, and a first mounting plate extending outward is installed on one side of the fixed frame. The miniature crushing rod and the flexible push rod are mounted on the first mounting plate and can slide outward along the extension direction of the first mounting plate.

[0018] A compression cylinder is installed on the fixed frame to push the flexible push rod to slide outward. The flexible push rod is a double-layered sleeve with a flexible spring at the end. The sand scraper head is fixed on the outer sliding tube, and the inner fixed tube is connected to the piston rod of the compression cylinder.

[0019] By adopting the above technical solution, the miniature crushing rod and the flexible push rod can slide outward along the extension direction of the first mounting plate. The cleaning radius of the miniature crushing rod and the sand scraper head can be adjusted according to the size of the graphite mold to adapt to the cleaning and loosening of graphite molds of different diameters. The flexible push rod is designed as a double-layered sleeve with a flexible spring at the end. The sand scraper head is fixed on the outer sliding tube of the flexible push rod, and the inner fixed tube of the flexible push rod is fixedly connected to the piston rod of the compression cylinder. Under normal conditions, the flexible spring is in a set compression state, so that the head of the sand scraper head maintains a set clamping force between the head of the sand scraper head and the wall of the sand hanging groove, which facilitates the loosening of ordinary sand blocks. When the sand scraper head touches the wall of the sand hanging groove, the flexible push rod can be adjusted to adjust the cleaning radius of the graphite mold according to the size of the graphite mold, to adapt to the cleaning and loosening of sand blocks of different diameters. When encountering larger, harder sand blocks, the sand blocks will squeeze the scraper head, causing the scraper head and the outer sliding tube to move backward together and compress the flexible spring. This avoids hard contact with and scraping over large sand blocks, which could cause wear to the scraper head or damage to the flexible push rod. As the cleaning system rotates more, the sand blocks in the sand tray are loosened, leaving only some smaller sand blocks. At this point, the scraper head will extend outward under the restoring force of the flexible spring, loosening the smaller sand blocks. During the cleaning process, the scraper head can be flexibly adjusted according to the size of the sand blocks, avoiding hard contact with the sand tray. This not only extends the service life of the scraper head but also effectively ensures the cleaning quality.

[0020] Preferably, the scraper head includes a conical body and a spherical tip formed on the head of the conical body. The spherical tip is used to flexibly abut against the wall of the sand-hanging groove, and the lower surface of the conical body used to abut against the bottom of the sand-hanging groove is cut into a scraping plane.

[0021] By adopting the above technical solution, the main body of the sand scraper head is set as a cone shape, and a spherical tip is set at the head of the cone-shaped main body. Both the cone-shaped main body and the spherical tip have smooth transitions at the edges to avoid wear on the graphite mold when loosening sand. Cutting the lower surface of the cone-shaped main body into a plane can loosen and remove the sand blocks at the bottom of the sand hanging trough.

[0022] Preferably, the system also includes an automatic image recognition system installed at the front end of the conveying system. The automatic image recognition system is used to take pictures and recognize the sand blocks on the graphite mold, form image signals and feed them back to the control system. The control system is used to determine and analyze the volume and density of the sand blocks in the image signals, and adjust the clamping force between the vertical brush head and the graphite mold according to the volume and density of the sand blocks.

[0023] By adopting the above technical solution, when the graphite mold is transported to the cleaning station, the automatic image recognition system first takes pictures of the sand blocks on the graphite mold to identify them, forming an image signal and transmitting the image signal to the control system. The control system has preset classification levels (e.g., light, medium, heavy) based on the volume and density of the sand blocks. Then, the control system compares and analyzes the images of the sand blocks on the graphite mold surface with the pre-stored classification levels to determine the level of the sand block condition on the graphite mold surface, and matches an appropriate cleaning plan. This forms a digital signal and is transmitted to the clamping force adjustment component to adjust the clamping force between the vertical brush head and the graphite mold surface. This allows for the matching of the most suitable cleaning plan for each graphite mold, which helps to ensure the cleaning quality of each graphite mold and reduces the probability of wear caused by excessive cleaning force.

[0024] Preferably, the front limiting member includes a rotating rod rotatably disposed below the conveying system, a first telescopic member with one end hinged to the ground and the telescopic end hinged to a first ear plate on the rotating rod, and a baffle rotatably disposed below the conveying system and movably connected to a second ear plate on the rotating rod. The baffle has protrusions formed on it extending along its height direction. The first telescopic member is used to extend and retract to drive the rotating rod to rotate. The protrusions are used to flip through the transmission of the second ear plate to protrude from or below the lower surface of the housing. A pressure sensor is installed on the baffle.

[0025] By adopting the above technical solution, when the first telescopic component extends or retracts, it pulls the first ear plate to drive the rotating rod to rotate. When the rotating rod rotates, it simultaneously drives the second ear plate to rotate clockwise or counterclockwise around the rotating rod. When the second ear plate gradually deviates from the vertical plane perpendicular to the axis of the rotating rod, the second ear plate will pull the baffle to gradually descend during the rotation, allowing the graphite mold to continue to be conveyed. When the second baffle gradually approaches the vertical plane perpendicular to the axis of the rotating rod, the second ear plate will push against the baffle during the rotation, causing the baffle to gradually rise and stop the graphite mold. When the graphite mold touches the baffle, it will trigger the stop command of the conveying system, causing the conveying system to stop and the graphite mold to stop at the cleaning station.

[0026] Preferably, the limiting system further includes a rear limiting member for locking the rear end of the housing after the conveying system stops;

[0027] The rear limiting component includes a second telescopic component fixed on the support below the conveying system and a pressure hook hinged to the end of the second telescopic component. The second telescopic component is set at an angle of less than 45° with the support. The pressure hook is used to rotate toward the position of the sleeve when the second telescopic component returns and press the sleeve downward.

[0028] By adopting the above technical solution, the control system sends a signal to the second telescopic component within a set time after the conveying system stops, and controls the second telescopic component to retract, so as to drive the pressure hook to press the sleeve box downward and restrict the position of the sleeve box, thereby limiting the movement of the sleeve box in the front and back directions, further reducing the probability of the graphite mold deviating from the preset position during the cleaning process, and reducing the probability of wear on the graphite mold.

[0029] Preferably, the positioning element includes a positioning pin fixed on the housing, and the positioning system further includes a pressure plate installed at the bottom of the fixed frame through a positioning sleeve. The positioning pin is used to be inserted into the positioning sleeve for positioning, and the pressure plate is used to press the upper surface of the graphite mold. The automatic cleaning device for the graphite mold further includes a blowing system for blowing away impurities attached to the positioning pin before the lifting system is started.

[0030] By adopting the above technical solution, before starting the lifting system, the purging system first blows away the impurities and small sand pieces attached to the outer surface of the positioning pin, which facilitates the insertion and positioning with the sleeve when the fixed frame descends, and helps to achieve rapid and accurate positioning of the graphite type.

[0031] Preferably, the conveying system includes a conveying roller rotatably mounted in two U-shaped brackets on both sides and a guide roller rotatably mounted above the conveying roller via a strut. The guide roller is perpendicular to the axis of the conveying roller, the lower surface of the housing contacts the conveying roller, and there is a gap of 1-2 cm between the housing and the guide roller.

[0032] By adopting the above technical solution, during the conveying of the casing, the casing is placed on the upper surface of the conveying roller and held by the guide rollers on both sides. The friction between the two sides of the casing and the guide rollers causes the guide rollers to rotate, thereby correcting the error between the two conveying rollers and ensuring that the graphite mold is conveyed to the cleaning station along the preset route. This avoids the graphite mold from shifting during the conveying process, which would affect the subsequent positioning.

[0033] Preferably, the lifting system includes a main control motor mounted on the ground on one side of the main frame and a transmission chain structure connected to the main control motor, wherein the transmission chain structure is a closed transmission chain; the fixed frame is equipped with limiting guide wheels for clamping on both sides of any vertical bar of the main frame.

[0034] By adopting the above technical solution, the raising and lowering of the fixed frame can be achieved by controlling the main control motor to rotate forward or reverse. The transmission is smooth, the load-bearing capacity is strong, the efficiency is high, and the operation is reliable. The cleaning cycle is shortened. A closed transmission chain structure is adopted, with the upper and lower ends of the fixed frame connected to the two ends of the transmission chain, respectively. When the fixed frame is lowered, the upper chain of the fixed frame is loosened to allow the fixed frame to gradually descend. If the fixed frame descends but does not reach the bottom in one go, the main control motor can be reversed to tighten the transmission chain below the fixed frame and pull the fixed frame to the bottom. This facilitates the quick positioning of the cleaning system and shortens the cleaning cycle of the graphite type.

[0035] Secondly, this application provides a graphite-based automatic cleaning method, which adopts the following technical solution:

[0036] A graphite-based automatic cleaning method includes the following steps:

[0037] Place the graphite mold at the front end of the conveying system: place the casing on the conveying rollers and hold it with guide rollers on both sides;

[0038] The image recognition system captures and scans the graphite-patterned gravel and transmits the image signal to the control system;

[0039] Start the conveyor system;

[0040] The graphite mold is transported to the cleaning station, which activates the limit system and triggers the conveyor system to stop: after the casing contacts the front limit component, the conveyor system stops, and at the same time, the rear limit component is triggered to press the rear end of the casing tightly.

[0041] The purging system is activated: purging removes impurities from the graphite surface and positioning components;

[0042] The lifting system starts, causing the cleaning system to move into position;

[0043] The control system activates the clamping force adjustment component based on the image signal.

[0044] The cleaning system starts and completes the cleaning work within the set time: the main drive motor starts, the micro crusher initially crushes large sand clumps, the vertical brush head rotates to sweep the sand and gravel on the large ring vertical surface, and the sand scraper head cleans the sand clumps left by the micro crusher for the second time.

[0045] The lifting system causes the cleaning system to return to its original position.

[0046] The limit system is released, and the conveying system is restarted.

[0047] By adopting the above technical solution, the graphite mold is transported to the cleaning station after identification, imaging, conveying, and limiting actions. Small pieces of sand and gravel attached to it are blown away. Then, the cleaning system is lowered using a lifting system to perform a full set of automated cleaning actions, including crushing and breaking up sand and gravel clumps, secondary cleaning and loosening of small pieces of sand and gravel remaining in the sand hanging trough, and brushing to clean the sand and gravel on the large ring vertical surface. The sand and dust generated during the cleaning process are collected and removed by the dust removal system to ensure the cleanliness of the workshop. After the cleaning is completed, the lifting system drives the cleaning system to be automatically raised, and the conveying system is automatically activated to transport the graphite mold to the next station. This not only reduces the labor intensity of workers, but also effectively improves the cleaning efficiency and quality of the graphite mold.

[0048] In summary, this application includes at least one of the following beneficial technical effects:

[0049] 1. This application establishes a fully automated cleaning process for graphite molds, which can automatically perform large-circle vertical cleaning of graphite molds and loosen sand in the sand-hanging grooves. This reduces the labor intensity of workers and improves the cleaning efficiency and quality of graphite molds. By setting the length of the micro-crushing rod, large sand clumps at a set height on the graphite mold can be crushed, reducing the cleaning difficulty of the sand scraper head. The sand scraper head makes flexible contact with the sand-hanging groove, reducing the probability of wear on the graphite mold. The vertical brush head is connected to the rotating motor through the clamping force adjustment component, which facilitates adaptive adjustment according to the accumulation density and volume of gravel on each graphite mold. This helps to improve the cleaning quality while avoiding wear on the graphite mold.

[0050] 2. By using the axial limit of the positioning system and the front and rear limit of the limit system, the position of the graphite mold is restricted during the cleaning operation, reducing the probability of the graphite mold shifting due to vibration of the cleaning system, which would lead to incomplete cleaning and thus improve the cleaning quality.

[0051] 3. By setting the structure of the front limiting component, it is easy to quickly control the rise or fall of the protrusion on the baffle, with a rapid response and without affecting the normal conveying of the graphite in the conveying system. Attached Figure Description

[0052] Figure 1 This is a schematic diagram of the overall structure of this application.

[0053] Figure 2 This is a structural diagram of the dust cover after the four side panels are hidden, as per this application.

[0054] Figure 3 yes Figure 2 A magnified view of the structure at point A in the middle.

[0055] Figure 4 This is a schematic diagram of the structure of graphite being transported on a conveying system.

[0056] Figure 5 yes Figure 4 A magnified view of the structure at point B in the middle section.

[0057] Figure 6 This is a partial structural diagram created to illustrate the structure of the rear-end limiting component.

[0058] Figure 7 This is a structural diagram of the cleaning system and its fixed frame.

[0059] Figure 8 This is a schematic diagram of the cleaning system.

[0060] Figure 9 yes Figure 8 A magnified view of the structure at point C.

[0061] Figure 10 This is a schematic diagram of the flexible push rod and the sand scraper head.

[0062] Figure 11 This is a flowchart illustrating the automatic cleaning method for graphite based on this application.

[0063] Explanation of reference numerals in the attached drawings: 01, graphite type; 02, housing; 1, conveying system; 011, support; 012, U-shaped bracket; 013, conveying roller; 014, retaining ring; 015, support rod; 016, guide roller; 3, limiting system; 31, front limiting component; 311, rotating rod; 312, first ear plate; 313, first telescopic component; 314, second ear plate; 315, baffle; 3151, baffle body; 3152, protrusion; 3153, sliding hole. 316. Pulley; 32. Rear end limiter; 321. Second telescopic component; 322. Pressure hook; 4. Main frame; 5. Fixed frame; 6. Rotating frame; 7. Cleaning system; 71. Miniature crusher; 72. Vertical brush head; 73. Sand scraper head; 731. Conical body; 732. Spherical tip; 733. Scraping surface; 734. Mounting block; 74. Main drive motor; 75. Rotating motor; 76. Scraper; 77. Flexible push rod; 771. Flexible spring 772. Spring; 78. Outer sliding tube; 8. Clamping force adjustment assembly; 9. Lifting system; 10. Main control motor; 11. Transmission chain structure; 12. Gear drive chain; 13. Transmission rod; 14. Limiting guide wheel; 15. Spring-type chain tensioning mechanism; 16. Positioning system; 17. Positioning component; 18. Positioning sleeve; 19. Pressure plate; 10. Dust removal system; 11. Dust hood; 12. Air collection duct; 13. Blowing system; 14. High-pressure nozzle; 15. 13. First mounting plate; 14. Sliding plate; 15. Guide hole; 16. First adjusting component; 17. Fixing block; 18. First lead screw; 19. Adjusting nut; 10. Guide bolt; 11. Second adjusting component; 12. Second mounting plate; 13. Adjusting block; 14. Second lead screw; 15. Smooth rod; 16. Third adjusting component; 17. Fixing plate; 18. Compression cylinder; 19. Guide block; 10. Connecting rod; 11. Stair platform. Detailed Implementation

[0064] The following is in conjunction with the appendix Figure 1-11 This application will be described in further detail.

[0065] This application discloses a graphite-based automatic cleaning device. (Refer to...) Figure 1 and Figure 2The automatic cleaning device for graphite types includes a conveying system 1 for transporting a housing 02 containing a graphite type 01 to a predetermined cleaning station; a limiting system 3 installed at the cleaning station to stop and limit the graphite type 01; a cleaning system 7 installed at the cleaning station for cleaning the graphite type 01; a lifting system 8 for lowering the cleaning system 7 after the graphite type 01 arrives at the cleaning station and raising the cleaning system 7 after cleaning is completed; a positioning system 9 for positioning the cleaning system 7 and the housing 02; and a dust removal system 10 for collecting and removing the sand and dust generated during cleaning. The cleaning station is equipped with a main frame 4, which is a cuboid frame extending along its height. The dust removal system 10 includes a dust removal hood 101 that completely encloses the top and sides of the main frame 4. Both the cleaning system 7 and the cleaning station are located inside the dust removal hood 101. The top plate of the dust collector 101 is integrally formed with an air collection duct 102 that communicates with the interior of the main frame 4. The end of the air collection duct 102 is connected to the ventilation equipment of the workshop through a dust removal pipe.

[0066] Reference Figure 2 and Figure 4 The conveying system 1 includes supports 011 on both sides, a U-shaped bracket 012 fixed to the top of the supports 011 and extending along the conveying direction, and several conveying rollers 013 rotatably disposed within the cavity of the U-shaped bracket 012. The several conveying rollers 013 are arranged along the length of the U-shaped bracket 012 and are conveyed by a power component (not shown in the figure), which includes, but is not limited to, a motor, a hydraulic motor, etc. A retaining ring 014 is also fixed on the side wall of each conveying roller 013. The retaining ring 014 coincides with the axis of the conveying roller 013, and a clamping space is formed between the retaining rings 014 on both sides for inserting the sleeve 02, thereby reducing the probability of the sleeve 02 shifting during conveying. To facilitate the insertion of the sleeve 02, a processing gap of about 5 cm is reserved between the retaining rings 014 on both sides and the side wall of the sleeve 02.

[0067] Reference Figure 4To eliminate the impact of processing gaps on the conveying of the graphite mold 01 and further reduce the probability of deviation during conveying, the conveying system 1 also includes several guide rollers 016 rotatably mounted above the conveying roller 013 via a support rod 015. These guide rollers 016 are also arranged along the length of the U-shaped bracket 012, and the axis of each guide roller 016 is perpendicular to the axis of the conveying roller 013. A gap of 1-2 cm exists between the guide rollers 016 and the housing 02, further reducing the gap error between the retaining ring 014 and the housing 02, and lowering the probability of deviation of the graphite mold 01. During placement, one end of the housing 02 overlaps the upper surface of the conveying roller 013, positioning the housing 02 between the guide rollers 016 on both sides. The rolling friction between the housing 02 and the guide rollers 016 facilitates the smooth feeding of the housing 02 into the space between the guide rollers 016. Guide rollers 016 are used to correct the error between the two conveying rollers 013, ensuring that the graphite type 01 is conveyed to the cleaning station along the preset route, reducing the probability that the graphite type 01 will deviate during the conveying process, thus affecting the subsequent positioning.

[0068] Since the dust hood 101 needs to isolate the sand and gravel generated during internal cleaning and reduce the probability of sand and dust spilling out, the side plates of the dust hood 101 should extend downwards as much as possible. This will reduce the conveying space for feeding the graphite 01 into the main frame 4. Therefore, an automatic image recognition system is also installed at the front end of the conveying system 1 to prevent large pieces of sand and gravel protruding from the surface of the graphite 01 from being unable to pass through the conveying space, thereby affecting the normal operation of the entire cleaning device.

[0069] Specifically, the automatic image recognition system includes a camera fixed on the U-shaped bracket 012. The camera takes pictures of the sand blocks on the graphite mold 01, generates image signals, and feeds them back to the control system. The control system processes and judges the received images. When it is determined that there are large pieces of sand protruding from the surface of the graphite mold 01, the control system will activate the alarm to remind workers to handle the situation so that subsequent cleaning can be carried out. The automatic image recognition system detects the graphite mold 01.

[0070] When the graphite model 01 is successfully fed into the cleaning station of the main frame 4, it will touch the front limiting member 31 of the limiting system 3, thereby triggering the front limiting member 31 to send a touch signal to the control system. After receiving the touch signal, the control system sends a stop command to the conveying system 1, causing the conveying system 1 to stop conveying and the graphite model 01 to stop at the cleaning station. After the graphite model 01 stops, the rear limiting member 32 of the limiting system 3 limits the rear end of the housing 02, restricting the offset of the graphite model 01 in the front-back direction.

[0071] Reference Figure 4 and Figure 5The front-end limiting member 31 includes a rotating rod 311 rotatably mounted below the conveying system 1, a first telescopic member 313 with one end hinged to the ground and its telescopic end hinged to a first ear plate 312 on the rotating rod 311, and a baffle 315 rotatably mounted on the side plate of any U-shaped bracket 012 and movably connected to a second ear plate 314 on the rotating rod 311. The first baffle 315 includes a baffle 315 body and a protrusion 3152 integrally formed along the height direction of the baffle 315 body, making the baffle 315 generally L-shaped. A pressure sensor (not shown in the figure) is installed on the side of the protrusion 3152 facing the groove of the L-shaped baffle 315 for detecting the pressure between it and the housing 02. The first telescopic member 313 is used to extend and retract to drive the rotating rod 311 to rotate, and the protrusion 3152 is used to flip through the transmission of the second ear plate 314 to protrude to the lower surface of the housing 02 or flip to be lower than the lower surface of the housing 02, so as to realize the switching between the stop position and the conveying position.

[0072] Reference Figure 5 The specific working process is as follows: When the conveying system 1 transports the graphite 01 to the cleaning station, the telescopic end of the first telescopic component 313 is in a retracted state, and the protrusion 3152 extends out and protrudes from the lower surface of the housing 02 to stop the moving housing 02. When the housing 02 moves to contact the pressure sensor, the pressure sensor detects pressure data, thereby triggering a touch signal in the control system. The control system then controls the conveying system 1 to stop and proceed to the next cleaning step. After cleaning is completed, the control system controls the first telescopic component 313 to extend. Since the first ear plate 312 and the second ear plate 314 are fixed on the rotating rod 311, the rotation of the first ear plate 312 drives the rotating rod 311 to rotate, and the rotation of the rotating rod 311 drives the second ear plate 314 and the baffle 315 to rotate. When the baffle 315 rotates, the protrusion 3152 protruding from the lower surface of the housing 02 gradually flips over and lays the protrusion 3152 horizontally. At this time, all the protrusions 3152 fall below the lower surface of the housing 02. After the front limiter 31 is lowered, the conveying system 1 restarts to ensure the smooth passage of the housing 02.

[0073] Reference Figure 5 The baffle 315 is rotatably connected to the U-shaped bracket 012 via a fixed shaft. To facilitate transmission, the first telescopic member 313 and the first ear plate 312, and the first ear plate 312 and the second ear plate 314 are both set at an angle of 120° to 180°. The connection position of the second ear plate 314 and the installation position of the fixed shaft are distributed on both sides of the baffle 315 body, and the first telescopic member 313 is set on the side of the rotating rod 311 away from the fixed shaft.

[0074] Reference Figure 5The connection between the baffle 315 and the second ear plate 314 can be a pin hinge or other rotatable connection methods. When a graphite mold 01 is cleaned and slides out of the cleaning station, the protrusion 3152 needs to rise again to limit and stop the next graphite mold 01. At this time, the first telescopic member 313 retracts, and the rotating rod 311 and the second ear plate 314 rotate in opposite directions. During the reverse rotation, the height of the second ear plate 314 in the vertical direction gradually increases, thereby gradually flipping the baffle 315, causing the protrusion 3152 to rise again. However, if the baffle 315 and the second ear plate 314 are hinged with a pin, during the reverse flipping of the baffle 315, the baffle 315 and the second ear plate 314 may become "locked," preventing the baffle 315 from flipping. Therefore, this application sets a certain range of motion between the second ear plate 314 and the baffle 315 body, ensuring that the baffle 315 can flip smoothly so that the protrusion 3152 can flip back to the stop position. Specifically, the bottom of the baffle 315 body has a sliding hole 3153 extending horizontally along its length. Two second ear plates 314 are provided opposite to each other, and a pulley 316 is rotatably arranged between the two second ear plates 314, which can slide along the sliding hole 3153, forming a state in which the two second ear plates 314 clamp the baffle 315 body. When the second ear plates 314 rotate in the opposite direction, they can slide horizontally along the sliding hole 3153, increasing the space for relative movement between the second ear plates 314 and the baffle 315.

[0075] Reference Figure 6 The limiting system 3 also includes a rear limiting component 32 for locking the rear end of the housing 02 after the conveying system 1 stops. When cleaning the graphite 01, the position of the graphite 01 can be limited in the front and rear, reducing the probability that the graphite 01 deviates from the preset position during the cleaning process, causing the components of the cleaning system 7 to make hard contact with the graphite 01 and thus causing wear of the graphite 01.

[0076] The rear limiting member 32 includes a second telescopic member 321 fixed inside the bracket 011 and a pressure hook 322 hinged to the end of the second telescopic member 321. The second telescopic member 321 is fixed to the bracket 011 by clamping members such as a clamp and is set at an angle of less than 45° to the bracket 011. The end of the pressure hook 322 away from the second telescopic member 321 is bent inward into a hook shape. The control system sends a signal to the second telescopic member 321 within a set time after the conveying system 1 stops, controlling the second telescopic member 321 to retract. When the second telescopic member 321 retracts, the pressure hook 322 rotates toward the position of the sleeve 02 to press the sleeve 02 downward, restricting the movement of the rear end of the sleeve 02 and realizing the positioning of the rear end of the sleeve 02. Preferably, both the rear limiting member 32 and the front limiting member 31 are provided in twos distributed on both sides of the sleeve 02. In the accompanying drawings of this application, only one rear limiting member 32 and one front limiting member 31 are provided as an example for illustration.

[0077] The first telescopic member 313 and the second telescopic member 321 can be any component with telescopic function. This application uses cylinders as an example to illustrate this.

[0078] Reference Figure 2 After the position of the graphite model 01 is restricted, the lifting system 8 is activated to lower the cleaning system 7 to clean the graphite model 01. The cleaning system 7 is integrated into the fixed frame 5, and the lifting system 8 is connected to the fixed frame 5.

[0079] Reference Figure 2 Specifically, the lifting system 8 is integrated into the main frame 4, including a main control motor 81 mounted on the ground on one side of the main frame 4 and a transmission chain structure 82 connected to the main control motor 81. The two ends of the transmission chain structure 82 are connected to the upper and lower ends of the fixed frame 5 respectively, forming a closed transmission chain structure 82. When the fixed frame 5 descends, the main drive motor 74 is controlled to rotate forward or reverse, loosening the chain above the fixed frame 5 to gradually lower it. If the fixed frame 5 descends but does not reach its final position, the main control motor 81 can be reversed to tighten the transmission chain below the fixed frame 5, pulling the fixed frame 5 into position. This facilitates the rapid positioning of the cleaning system 7 and shortens the cleaning cycle of the graphite type 01.

[0080] Reference Figure 3 To ensure smooth movement of the fixed frame 5 during lifting and lowering, this application uses an example where two sets of transmission chain structures 82 are installed on both sides of the main frame 4. The main control motor 81 drives the two sets of transmission chain structures 82 to move synchronously through the gear transmission chain 83 and the transmission rod 84. To guide the vertical movement of the fixed frame 5 and limit its position, limiting guide wheels 85 are installed on the frames on both sides of the fixed frame 5 to clamp onto either side of any vertical bar of the main frame 4. When the fixed frame 5 descends, the vertical bar of the main frame 4 serves as a guide rod, and the limiting space between the limiting guide wheels 85 limits the descent of the fixed frame 5, ensuring that the fixed frame 5 and the cleaning system 7 descend vertically.

[0081] Reference Figure 2 A spring-type chain tensioning mechanism 86 connected to the transmission chain structure 82 is provided on the top plate of the main frame 4 and the bottom of the conveying system 1 to adjust the tension of the transmission chain structure 82.

[0082] Reference Figure 3 and Figure 7To reduce the probability of misalignment caused by vibration during cleaning by the cleaning system 7, and to reduce the probability of scratching the surface of the graphite mold 01, a positioning system 9 is provided between the fixing frame and the graphite mold 01 to limit the axial rotation of the graphite mold 01. The positioning system 9 includes a positioning element 91 mounted on the housing 02 for positioning with the fixing frame 5 after the cleaning system 7 has moved into place. The positioning element 91 can be a positioning block or a positioning groove on the upper surface of the housing 02, which limits the axial rotation of the graphite mold 01 by axially limiting it with the fixing frame 5. This application uses a positioning pin as an example for the positioning element 91. The positioning system 9 also includes a pressure plate 93 fixed to the bottom of the fixing frame 5 by a positioning sleeve 92. The positioning sleeve 92 is set in correspondence with the positioning pin. When the lifting system 8 controls the fixed frame 5 to descend, the pressure plate 93 descends together with the fixed frame 5. During the descent of the pressure plate 93, the positioning pin is gradually inserted into the positioning sleeve 92. After the cleaning system 7 descends to the position, the pressure plate 93 presses against the upper surface of the graphite mold 01. The pressure of the pressure plate 93 on the graphite mold 01 and the limiting effect of the positioning pin and the positioning sleeve 92 restrict the axial rotation of the graphite mold 01.

[0083] Reference Figure 4 To ensure the secure fixation of the pressure plate 93 on the fixed frame 5 and to achieve reliable positioning of the graphite type 01, at least two positioning pins and positioning sleeves 92 are provided. This application illustrates the example of having two positioning pins and two positioning sleeves 92, with the two positioning pins and two positioning sleeves 92 being diagonally positioned.

[0084] Since the locating pin is fixed to the housing 02, and the housing 02 and the graphite mold 01 are an integral unit, requiring metal casting together with the graphite mold 01, small pieces of sand and dust inevitably adhere to the outer wall of the locating pin. To ensure the accurate positioning of the locating pin and the locating sleeve 92 and reduce the impact of the adhered sand and dust on the positioning of the locating pin, this application also includes a blowing system 11 to blow away the small pieces of sand and dust adhering to the surface of the locating pin and the graphite mold 01. Specifically, the blowing system 11 includes a high-pressure nozzle 111 fixed on the U-shaped bracket 012. The nozzle head of the high-pressure nozzle 111 faces the graphite mold 01 and is horizontally arranged. The end of the high-pressure nozzle 111 is connected to a high-pressure air pump through a pipe. A solenoid valve is installed on the connecting cable of the high-pressure air pump, and the solenoid valve is controlled by the control system. To improve the cleaning effect of the high-pressure nozzle 111, two sets of high-pressure nozzles 111 are provided, and the two sets of high-pressure nozzles 111 are also set diagonally, consistent with the locating pin. During blowing, the two sets of high-pressure nozzles 111 are activated simultaneously.

[0085] Reference Figure 7 , Figure 8 and Figure 9A rotating frame 6 is rotatably mounted within a fixed frame 5. A main drive motor 74, connected to the rotating frame 6, is fixed to the fixed frame 5 to drive the rotating frame 6 to rotate. The cleaning system 7 also includes a miniature crushing rod 71 installed at the bottom of the rotating frame 6 and extending downwards, a vertical brush head 72 rotatably mounted on the rotating frame 6 for cleaning gravel from the large circular vertical surface, and a scraper head 73 installed on the rotating frame 6 and extending outwards. A rotating motor 75, connected to the vertical brush head 72, is fixed to the rotating frame 6. During cleaning, the main drive motor 74 and the rotating motor 75 are started. The main drive motor 74 drives the rotating frame 6 to rotate as a whole, thereby causing the miniature crushing rod 71, the vertical brush head 72, and the scraper head 73 to rotate around the main drive motor 74 as the axis. The rotation of the rotating motor 75 causes the vertical brush head 72 to rotate, thereby cleaning and removing gravel within the swept area and expanding the cleaning range of the vertical brush head 72. The end of the micro-crushing rod 71 is a pointed tip, and its length is configured to initially crush large sand clumps at a set height when the cleaning system 7 descends to its designated position. A scraper head 73 is positioned behind the rotating micro-crushing rod 71 to perform secondary cleaning of loosened and remaining sand and gravel, achieving simultaneous removal of large sand clumps and improving cleaning efficiency. To ensure the crushing strength and range of the micro-crushing rod 71 meet requirements, multiple micro-crushing rods 71 ​​are centrally located. Each group of micro-crushing rods 71 ​​is also equipped with a scraper 76, positioned behind the rotating multiple micro-crushing rods 71. The scraper 76 scrapes and removes the large sand clumps crushed by the micro-crushing rods 71, and also pre-loosens the sand, facilitating subsequent loosening and cleaning by the scraper head 73, thus improving the cleaning quality of the scraper head 73.

[0086] Reference Figure 9 and Figure 10 Furthermore, in order to reduce the probability of accidentally causing wear to the graphite mold 01 during cleaning, this application fixes the scraper head 73 to the head of the flexible push rod 77. The flexible push rod 77 is installed on the rotating frame 6 and is fixed in position relative to the rotating frame 6, so that the scraper head 73 can flexibly contact the wall of the sand hanging groove. This can meet the clamping force requirements during cleaning, loosen the sand left on the sand hanging groove, and ensure the cleaning quality. If the graphite mold 01 accidentally deviates from the preset position, the scraper head 73 can also be flexibly adjusted to always maintain contact with the surface of the graphite mold 01, avoiding hard contact between the scraper head 73 and the graphite mold 01 and reducing the probability of scratching the graphite mold 01.

[0087] Reference Figure 9 and Figure 10Specifically, the flexible push rod 77 is a double-layered sleeve with a flexible spring 771 at the end, which includes an inner fixed tube and an outer sliding tube 772 that can slide along the axis of the inner fixed tube. Under normal conditions, the flexible spring 771 is in a set compressed state, maintaining a set clamping force between the head of the scraper head 73 and the wall of the sand-hanging groove, making it easy to loosen ordinary sand blocks. When the scraper head 73 comes into contact with a larger or harder sand block, the sand block will squeeze the scraper head 73, causing the scraper head 73 and the outer sliding tube 772 to move backward together and compress the flexible spring 771. This avoids hard contact and scraping over large sand blocks, which could cause wear to the scraper head 73 or damage to the flexible push rod 77. As the cleaning system 7 rotates more times, most of the sand blocks in the sand-hanging groove have been loosened, leaving only some smaller sand blocks. At this time, the scraper head 73 will extend outward under the restoring force of the flexible spring 771 to loosen the small sand blocks. During the cleaning process, the scraper head 73 can be flexibly adjusted according to the size of the sand blocks, avoiding hard contact with the sand-hanging groove. This not only extends the service life of the scraper head 73 but also effectively ensures the cleaning quality.

[0088] Meanwhile, to further ensure cleaning quality, a clamping force adjustment component 78 is provided between the vertical brush head 72 and the output shaft of the rotating motor 75. This component allows for intelligent determination of the clamping force between the vertical brush head 72 and the graphite mold 01 based on the degree of sand accumulation on the graphite mold 01. This intelligently adjusts the cleaning force of the vertical brush head 72, enabling customized adjustments based on the sand accumulation conditions of different graphite molds 01. This improves cleaning quality while avoiding excessive cleaning force that could cause wear on the surface of the graphite mold 01.

[0089] Specifically, before the graphite mold 01 is sent to the cleaning station, an automatic image recognition system photographs and identifies the sand blocks on the graphite mold 01, generating an image signal which is then transmitted to the control system. The control system has preset classification levels based on the sand block volume and density (e.g., light, medium, heavy). The control system then compares and analyzes the photographed image of the sand blocks on the surface of the graphite mold 01 with the pre-stored classification levels to determine the level of sand block condition on the surface of the graphite mold 01, and matches an appropriate cleaning scheme. This generates a digital signal which is transmitted to the clamping force adjustment component 78 to adjust the clamping force between the vertical brush head 72 and the surface of the graphite mold 01. This application uses an electric push rod as an example to illustrate the clamping force adjustment component 78.

[0090] Reference Figure 8 and Figure 10The bottom of the scraper head 73 is integrally formed with an mounting block 734, which is fitted and fixed onto the outer sliding tube 772. Regarding the shape of the scraper head 73, it should conform to the curvature of the sand-coating trough to improve cleaning quality and reduce the probability of scratching the graphite mold 01. Therefore, this application designs the shape of the scraper head 73. Specifically, the scraper head 73 includes a conical body 731 and a spherical tip 732 formed at the head of the conical body 731. The spherical tip 732 is used to flexibly abut against the wall of the sand-coating trough. Both the conical body 731 and the spherical tip 732 have smoothly rounded edges to avoid wear on the graphite mold 01 when loosening sand. The lower surface of the conical body 731, which abuts against the bottom of the sand-coating trough, is cut into a scraping plane 733 to scrape away the loosened sand and gravel, its working principle being the same as that of the scraper 76. Similarly, the shape of the vertical brush head 72 should also be more closely aligned with the shape of the large ring plane of the graphite type 01. This application sets the cleaning surface of the vertical brush head 72 as a U-shaped arc surface, which is beneficial to increasing the cleaning range of the vertical brush head 72 and making it easier to clean the sand and gravel in the corners, thereby improving the cleaning quality.

[0091] Reference Figure 9 Furthermore, to accommodate cleaning graphite 01 of different diameters, the cleaning system 7 further includes a first adjusting member 14, a second adjusting member 15, and a third adjusting member 16 mounted on the fixed frame 5 to adjust the cleaning radii of the micro-crushing rod 71, the vertical brush head 72, and the sand scraper head 73, respectively. A first mounting plate 12 extending outwards is mounted on one side of the fixed frame 5. The micro-crushing rod 71 and the flexible push rod 77 are mounted on the first mounting plate 12 and can slide outwards along the extending direction of the first mounting plate 12.

[0092] Specifically, multiple miniature crushing rods 71 ​​are integrated on a sliding plate 13, which is slidably connected to the bottom of a first mounting plate 12. The sliding of the sliding plate 13 is adjusted by a first adjusting member 14. The first adjusting member 14 includes fixing blocks 141 fixed to the tops of the sliding plate 13 and the first mounting plate 12, a first lead screw 142 passing between the two fixing blocks 141, and an adjusting nut 143 threaded to the distal end of the first lead screw 142. The sliding plate 13 and the first mounting plate 12 are connected together by guide bolts 143, and an elongated guide hole 131 is provided on the sliding plate 13 for the guide bolts 143 to pass through. The axis of the guide hole 131 is parallel to the axis of the first lead screw 142. During adjustment, the adjusting nut 143 is screwed outward or inward, causing the sliding plates 13 to be pulled outward or pushed inward. During the sliding of the sliding plates 13, the guide bolts 143 and the guide hole 131 are used for guidance and limitation, thereby adjusting the cleaning radius of the miniature crushing rods 71.

[0093] The adjustment principle of the vertical brush head 72 is the same as that of the miniature crusher 71. Specifically, the rotating motor 75 and the vertical brush head 72 are respectively fixed on the second mounting plate 151. An adjusting block 152 is fixed between the two second mounting plates 151. The second adjusting component 15 includes a second lead screw 153 passing through the adjusting block 152 and the vertical support rod 015 of the rotating frame 6, and an adjusting nut 143. To facilitate the guidance of the movement of the adjusting block 152, a smooth rod 154 parallel to it is provided on the other side of the second lead screw 153, and the setting direction of the second lead screw 153 is the same as the length direction of the rotating frame 6. When the adjusting block 152 is pushed outward and the vertical brush head 72 is moved outward, the cleaning radius of the vertical brush head 72 can be increased.

[0094] The flexible push rod 77 is slidably inserted between two fixed plates 161 below the first mounting plate 12. The height of the fixed plates 161 ensures that the lower surface of the scraper head 73 is lower than the tip of the micro-crushing rod 71. The third adjusting component 16 is a compression cylinder 162 fixed on the rotating frame 6. The piston rod of the compression cylinder 162 is parallel to the flexible push rod 77 and extends away from the end of the scraper head 73. The piston rod is connected to the inner fixed tube of the flexible push rod 77 through a vertical connecting rod 164. By controlling the extension and retraction of the piston rod of the compression cylinder 162, the flexible push rod 77 is pulled to slide, thereby adjusting the cleaning radius of the scraper head 73. To guide the movement of the flexible push rod 77, a guide block 163 extending along the axial direction of the flexible push rod 77 is also fixed on the outer wall of the flexible push rod 77.

[0095] To save cleaning time and improve cleaning efficiency of the cleaning system 7, two sets of miniature crushing rods 71 ​​and sand scraping heads 73 are distributed on both sides of the rotating frame 6, and two sets of vertical brush heads 72 are also provided at both ends of the rotating frame 6.

[0096] Reference Figure 1 and Figure 2 Near the main frame 4, there is also a stair platform 17 for workers to go up and down, which is convenient for workers to carry out maintenance.

[0097] The implementation principle of the automatic cleaning device for graphite molds in this application embodiment is as follows: During cleaning, the housing 02, on which the graphite mold 01 is fixed, is placed on the conveying roller 013 and within the support space of the guide rollers 016 on both sides. The conveying system 1 is started, and the camera captures the volume and density of sand accumulation on the surface of the graphite mold 01, forming an image signal that is transmitted to the control system. The control system identifies and judges the image signal. When it detects large sand clumps on the surface of the graphite mold 01 that are too high to pass through the bottom of the main frame 4, it controls the alarm to sound. The control system judges the accumulation of sand on the surface of the graphite mold 01 based on the image signal, matches the corresponding processing plan, and adjusts the clamping force adjustment component 78 according to the generated processing plan. When the graphite mold 01 is conveyed to the cleaning station, it touches the front protrusion 3152. The pressure sensor detects the pressure data and sends a pressure signal to the control system, which then controls the conveying system 1 to stop. Subsequently, the control system controls the second telescopic component 321 to retract, so that the pressure hook 322 clamps the rear end of the housing 02. After the front and rear end limits are completed, the control system controls the purging system 11 to blow away the small pieces of sand and gravel on the surface of the positioning pin and the graphite mold 01. After purging, the main control motor 81 is turned on to control the fixed frame 5 to descend. The descent distance is preset. After descending to the bottom, the pressure plate 93 presses against the upper surface of the graphite mold 01, and the positioning pin is inserted into the positioning sleeve 92 to achieve axial positioning of the graphite mold 01. After a set time, the control system starts the main drive motor 74 and the rotation motor 75 to clean the large ring vertical surface of the graphite mold 01 and crush and remove large pieces of sand in the sand hanging groove. During the cleaning process, the sand and dust are collected and removed by the dust removal system 10. The cleaning time is preset. After cleaning, the main control motor 81 reverses to raise the fixed frame 5 and the cleaning system 7. The first telescopic member 313 extends and drives the baffle 315 to rotate, causing the protrusion 3152 to flatten. At the same time, the second telescopic member 321 extends and releases the locking hook 322 to the sleeve 02. After the front and rear limit switches of the housing 02 are released, the conveying system 1 restarts and transports the cleaned graphite mold 01 to the next station. When it is necessary to clean graphite molds 01 of different diameters, the cleaning radius of the cleaning system 7 is adjusted by the first adjusting member 14, the second adjusting member 15 and the third adjusting member 16 respectively.

[0098] This application also discloses an automatic cleaning method for graphite. (Refer to...) Figure 11 The graphite-based automatic cleaning method includes the following steps:

[0099] S1: Place the graphite type 01 at the front end of the conveying system 1: Place the sleeve 02 on the conveying roller 013 and clamp it with the guide rollers 016 on both sides.

[0100] S2: The image recognition system captures and scans the gravel on the graphite model 01 and transmits the image signal to the control system.

[0101] S3: Start the conveyor system 1.

[0102] S4: Graphite type 01 is transported to the cleaning station, which activates the limit system 3 and triggers the conveyor system 1 to stop: After the housing 02 contacts the front limit component 31, the conveyor system 1 is triggered to stop, and at the same time, the rear limit component 32 is triggered to press the rear end of the housing 02 tightly.

[0103] S5: Purge system 11 starts: Purges away impurities on the surface of graphite type 01 and positioning part 91.

[0104] S6: The lifting system 8 is activated, driving the cleaning system 7 to move into position: the fixed frame 5 and the positioning component 91 are limited, restricting the axial rotation of the graphite type 01.

[0105] S7: The control system controls the clamping force adjustment component 78 to start based on the image signal captured by the image automatic recognition system.

[0106] S8: The cleaning system 7 starts and completes the cleaning work within the set time: the main drive motor 74 starts, the micro crusher 71 initially crushes large sand clumps, the vertical brush head 72 rotates and sweeps the sand and gravel on the large ring vertical surface, and the sand scraper head 73 performs a secondary cleaning of the sand clumps left by the micro crusher 71.

[0107] S9: The lifting system 8 drives the cleaning system 7 to return to its original position.

[0108] S10: Limit system 3 releases the limit and conveyor system 1 restarts.

[0109] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A graphite-based automatic cleaning device, characterized in that: Controlled by a control system, including: A conveying system (1) is used to convey a housing (02) with a graphite type (01) fixed to it to a predetermined cleaning station; The limiting system (3) is used to limit the box (02) at the cleaning station, including a front limiting component (31) for blocking the front end of the box (02) and triggering the stop command of the conveying system (1) after the box (02) is in place; The cleaning system (7), integrated on the rotating frame (6), includes a miniature crushing rod (71) fixed to the rotating frame (6) and extending downward, a vertical brush head (72) rotatably mounted on the rotating frame (6) for cleaning large ring vertical surface gravel, and a scraper head (73) mounted on the rotating frame (6) and extending outward. The rotating frame (6) is driven to rotate by a main drive motor (74). The miniature crushing rod (71) is used to initially crush large sand clumps of a set height. The scraper head (73) is located behind the rotating miniature crushing rod (71) for secondary cleaning of loose and remaining gravel. The scraper head (73) is in flexible contact with the wall of the sand hanging trough. The vertical brush head (72) is connected to the rotating motor (75) mounted on the rotating frame (6) through a clamping force adjustment component (78). The lifting system (8) has a main frame (4) extending along the height direction at the cleaning station. The main drive motor (74) and the rotating frame (6) are integrated on the fixed frame (5). The lifting system (8) is set on the main frame (4) and its end is connected to the fixed frame (5) to drive the cleaning system (7) to lift. The positioning system (9) includes a positioning element (91) disposed on the housing (02) for positioning in conjunction with the fixed frame (5) after the cleaning system (7) has moved into place. The scraper head (73) is fixed to the head of the flexible push rod (77) to achieve flexible adjustment. A first mounting plate (12) extending outward is installed on one side of the fixed frame (5). The micro crusher rod (71) and the flexible push rod (77) are installed on the first mounting plate (12) and can slide outward along the extension direction of the first mounting plate (12). A compression cylinder (162) is installed on the fixed frame (5) to push the flexible push rod (77) outward. The flexible push rod (77) is a double-layered sleeve with a flexible spring (771) at the end. The scraper head (73) is fixed on the outer sliding tube (772), and the inner fixed tube is connected to the piston rod of the compression cylinder (162). The scraper head (73) includes a conical body (731) and a spherical tip (732) formed on the head of the conical body (731). The spherical tip (732) is used to flexibly abut against the wall of the sand-hanging groove, and the lower surface of the conical body (731) used to abut against the bottom of the sand-hanging groove is cut into a scraping plane (733).

2. The graphite-type automatic cleaning device according to claim 1, characterized in that: It also includes an automatic image recognition system installed at the front end of the conveying system (1). The automatic image recognition system is used to take pictures and recognize the sand blocks on the graphite mold (01), form an image signal and feed it back to the control system. The control system is used to judge and analyze the volume and density of the sand blocks on the image signal, and adjust the clamping force between the vertical brush head (72) and the graphite mold (01) according to the volume and density of the sand blocks.

3. The graphite-type automatic cleaning device according to claim 2, characterized in that: The front limiting member (31) includes a rotating rod (311) rotatably disposed below the conveying system (1), a first telescopic member (313) with one end hinged to the ground and the telescopic end hinged to the first ear plate (312) on the rotating rod (311), and a baffle (315) rotatably disposed below the conveying system (1) and movably connected to the second ear plate (314) on the rotating rod (311). The baffle (315) has a protrusion (3152) extending along its height direction. The first telescopic member (313) is used to extend and retract to drive the rotating rod (311) to rotate. The protrusion (3152) is used to flip through the transmission of the second ear plate (314) to protrude from or below the lower surface of the housing (02). A pressure sensor is installed on the baffle (315).

4. The graphite-type automatic cleaning device according to claim 3, characterized in that: The limiting system (3) further includes a rear limiting member (32) for locking the rear end of the housing (02) after the conveying system (1) stops; The rear limiting member (32) includes a second telescopic member (321) fixed on the support (011) below the conveying system (1) and a pressure hook (322) hinged to the end of the second telescopic member (321). The second telescopic member (321) is set at an angle of less than 45° with the support (011). The pressure hook (322) is used to rotate towards the position of the sleeve (02) when the second telescopic member (321) returns and press the sleeve (02) downward.

5. The graphite-type automatic cleaning device according to claim 4, characterized in that: The positioning component (91) includes a positioning pin fixed on the housing (02). The positioning system (9) also includes a pressure plate (93) installed at the bottom of the fixed frame (5) via a positioning sleeve (92). The positioning pin is used to insert and position with the positioning sleeve (92). The pressure plate (93) is used to press the upper surface of the graphite type (01). The automatic cleaning device for the graphite type also includes a purging system (11) for purging and removing impurities attached to the positioning pin before the lifting system (8) is started.

6. The graphite-type automatic cleaning device according to claim 5, characterized in that: The conveying system (1) includes a conveying roller (013) rotatably mounted in two U-shaped brackets (012) on both sides and a guide roller (016) rotatably mounted above the conveying roller (013) via a support rod (015). The guide roller (016) is perpendicular to the axis of the conveying roller (013). The lower surface of the sleeve (02) is in contact with the conveying roller (013). There is a gap of 1~2cm between the two sides of the sleeve (02) and the guide roller (016).

7. The graphite-type automatic cleaning device according to claim 6, characterized in that: The lifting system (8) includes a main control motor (81) set on the ground on one side of the main frame (4) and a transmission chain structure (82) connected to the main control motor (81). The transmission chain structure (82) is a closed transmission chain. The fixed frame (5) is equipped with limiting guide wheels (85) for clamping on both sides of any vertical bar of the main frame (4).

8. The automatic cleaning method of the graphite-type automatic cleaning device according to claim 7, characterized in that: Includes the following steps: Place the graphite type (01) at the front end of the conveying system (1): place the sleeve (02) on the conveying roller (013) and clamp it with the guide rollers (016) on both sides; The image automatic recognition system captures and scans the gravel on the graphite model (01) and transmits the image signal to the control system; Start the conveyor system (1); The graphite type (01) is transported to the cleaning station, which causes the limit system (3) to start and triggers the conveying system (1) to stop: after the box (02) contacts the front limit member (31), the conveying system (1) is triggered to stop, and at the same time the rear limit member (32) is triggered to press the rear end of the box (02) tightly. The purging system (11) is activated: purging removes impurities from the surface of the graphite type (01) and the positioning element (91); The lifting system (8) is activated, which drives the cleaning system (7) to move into place; The control system activates the clamping force adjustment component (78) based on the image signal. The cleaning system (7) starts and completes the cleaning work within the set time: the main drive motor (74) starts, the micro crusher (71) initially crushes the large sand clumps, the vertical brush head (72) rotates and sweeps the sand and gravel on the large ring vertical surface, and the sand scraper head (73) cleans the sand clumps left by the micro crusher (71) for the second time. The lifting system (8) drives the cleaning system (7) to return to its original position; Limit system (3) releases limit, conveying system (1) restarts.

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