Flattening device

Abstract

The utility model relates to material spreading technology field, specifically disclose a kind of spreading device, the spreading device includes spreading mechanism and cleaning mechanism, and spreading mechanism includes lifting unit, rotating unit and scraping piece, and cleaning mechanism includes air-blowing unit, suction unit and the cover shell with the opening of bottom having openable and closable.The lifting unit can drive rotating unit to lift to drive scraping piece to switch between spreading position and cleaning position, and rotating unit can drive scraping piece to rotate in cleaning position and spreading position.Cleaning position is located in the cover shell inside, and air-blowing unit is used to blow away the material remaining on scraping piece, and suction unit is used to suck away the material separated from scraping piece.The spreading device can realize closed, automatic cleaning process.

Description

Technical Field

[0001] This utility model relates to the field of material leveling technology, and in particular to a leveling device. Background Technology

[0002] Before industrial analysis of bulk materials such as coal, ore, and grain, a quantitative sample needs to be spread into a smooth layer in a sample pan or crucible using a scraper. This ensures uniform heating during subsequent heating processes, thereby guaranteeing the accuracy and reproducibility of the test results. After spreading a sample, a small amount of material will inevitably adhere to and remain in the gaps of the scraper. Therefore, to prevent cross-contamination between samples, the scraper needs to be cleaned before spreading the next sample. Currently, existing cleaning methods rely entirely on manual periodic wiping, which cannot guarantee cleaning effectiveness and frequency, and the open environment makes it easy for bulk materials to pollute the environment.

[0003] Therefore, a leveling device is urgently needed to solve the above-mentioned technical problems. Utility Model Content

[0004] This invention provides a leveling device that enables dynamic and all-round cleaning of the scraping parts, significantly improving the thoroughness and efficiency of cleaning. Moreover, the cleaning process is environmentally friendly and pollution-free, ensuring the accuracy of subsequent industrial analysis test results. In addition, the structure is relatively simple, reducing costs and improving the overall operational reliability.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] The leveling device includes:

[0007] A leveling mechanism includes a lifting unit, a rotating unit, and a scraping component. The output end of the lifting unit is connected to the rotating unit, and the output end of the rotating unit is connected to the scraping component. The lifting unit can drive the rotating unit to move up and down to switch the scraping component between a leveling position and a cleaning position. The rotating unit can drive the scraping component to rotate between the cleaning position and the leveling position.

[0008] The cleaning mechanism includes an air blowing unit, a suction unit, and a housing with an openable and closable opening at the bottom. The output end of the rotating unit slides and seals through the top of the housing to drive the scraper to extend through the opening to the flattened position outside the housing or retract to the cleaning position inside the housing. The opening is closed when the scraper is in the cleaning position. The air blowing unit blows air onto the scraper in the cleaning position to blow away any residual material on the scraper. The suction unit sucks away any material that has detached from the scraper.

[0009] Optionally, at the bottom of the housing, cover plates are slidably connected to both sides of the housing. The two cover plates can approach each other to seal and close the opening, and the two cover plates can also move away from each other to open the opening.

[0010] Optionally, each of the cover plates is provided with a first driving member, the output end of the first driving member being connected to the corresponding cover plate for driving the cover plate to move;

[0011] And / or, the two cover plates are provided with sealing strips on their mating sides.

[0012] Optionally, the cover plate is provided with a detection mechanism for detecting the opening and closing state of the two cover plates.

[0013] Optionally, the suction unit includes:

[0014] The suction port is connected to the interior of the casing and is used to absorb the material swept down inside the casing;

[0015] A contaminant, used to hold collected materials;

[0016] A negative pressure generating element is used to provide suction force to the suction port;

[0017] Connect the pipeline to make the suction port, the dirt-holding component and the negative pressure generating component fluidly connected.

[0018] Optionally, the blowing unit includes an air nozzle mounted on the housing, the air outlet of the air nozzle communicating with the interior of the housing, for spraying gas onto the scraper located at the cleaning position;

[0019] The air nozzle is disposed opposite to the suction port; or, multiple air nozzles are provided, and the multiple air nozzles are disposed at intervals along the circumference of the cover.

[0020] Optionally, the scraping component includes a first scraping part and a second scraping part, which are disposed on both sides of the rotation center of the scraping component. Both the first scraping part and the second scraping part include a plurality of spaced scraping teeth, with a notch formed between two adjacent scraping teeth. The notches of the first scraping part and the notches of the second scraping part are asymmetrically arranged relative to the rotation center of the scraping component.

[0021] Optionally, the lifting unit includes:

[0022] Mounting rack;

[0023] A slide rail is mounted on the mounting bracket and extends vertically.

[0024] The slider is slidably connected to the slide rail;

[0025] The connector has one end connected to the slider and the other end connected to the rotating unit;

[0026] A second driving component is disposed on the mounting bracket. The output end of the second driving component is connected to the connecting component and is used to drive the connecting component to move the rotating unit up and down.

[0027] Optionally, the lifting unit includes a plurality of sliders, all of which are slidably connected to the slide rail;

[0028] The connector includes a vertical section and a horizontal section that are connected to each other. The vertical section is connected to multiple sliders. The end of the horizontal section away from the vertical section extends to the top of the cover. The fixed end of the rotating unit is installed at a position opposite to the cover on the horizontal section.

[0029] Optionally, the rotating unit includes a third driving member and a rotating shaft. One end of the rotating shaft is connected to the third driving member, and the other end of the rotating shaft is connected to the scraping member. The third driving member drives the scraping member to rotate in the cleaning position and the flattening position through the rotating shaft.

[0030] The beneficial effects of this utility model are as follows:

[0031] This utility model provides a leveling device, including a leveling mechanism and a cleaning mechanism. The leveling mechanism includes a lifting unit, a rotating unit, and a scraper. The cleaning mechanism includes an air blowing unit, a suction unit, and a cover with an openable and closable opening at the bottom. When the scraper needs to be cleaned, the lifting unit drives the rotating unit to move the scraper to the cleaning position, and then the opening of the cover is closed to form a sealed space. The rotating unit then drives the scraper to rotate, activating the air blowing unit and the suction unit. The air blowing unit sprays airflow onto all parts of the scraper during its rotation to completely blow away any materials adhering to it, such as dust and particles. After the materials separate from the scraper, they are promptly sucked away by the suction unit. This leveling device cleverly utilizes the inherent rotating unit designed for scraping materials to drive the cleaning process. Compared to the traditional approach of setting separate drive mechanisms for the air blowing and suction units to clean around the scraping components, this device achieves high integration and structural simplification. Simplified structure means fewer potential points of failure, improving the overall reliability of the leveling device. Simultaneously, structural simplification reduces component costs and energy consumption, facilitating automated intelligent maintenance and resulting in significant overall economic benefits. Furthermore, combining the rotational motion of the scraping components with air suction and blowing achieves dynamic, all-around cleaning of the scraping components, eliminating blind spots. During the cleaning process, the synergistic effect of airflow scouring and centrifugal force produces a "1+1>2" cleaning effect, significantly improving the thoroughness and efficiency of cleaning.

[0032] This leveling device features an openable and closable cover with a bottom opening, and the cleaning position is located inside the cover, allowing the scraper to clean in a closed environment, effectively preventing material from contaminating the environment. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the leveling device provided in an embodiment of the present utility model;

[0034] Figure 2 This is a schematic diagram of the scraping component provided in an embodiment of the present utility model.

[0035] In the picture:

[0036] 100. Leveling mechanism; 110. Lifting unit; 111. Mounting bracket; 112. Slide rail; 113. Slider; 114. Connector; 1141. Vertical section; 1142. Horizontal section; 115. Second drive unit; 120. Rotation unit; 121. Third drive unit; 122. Rotation shaft; 130. Scraper; 131. First scraper section; 1311. Scraper teeth; 1312. Notch; 132. Second scraper section;

[0037] 200 Cleaning mechanism; 210 Cover; 211 Opening; 220 Air blowing unit; 221 Air nozzle; 230 Sewage suction unit; 231 Sewage suction port; 232 Sewage container; 233 Connecting pipeline; 240 Cover plate; 250 First driving component; 260 Sealing strip; 270 Detection mechanism. Detailed Implementation

[0038] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0039] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] In this invention, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0042] In this utility model, "multiple" refers to two or more (including two).

[0043] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0044] This embodiment provides a leveling device that enables dynamic and all-round cleaning of the scraping parts, significantly improving the thoroughness and efficiency of cleaning. Moreover, the cleaning process is environmentally friendly and pollution-free, ensuring the accuracy of subsequent industrial analysis test results. In addition, the structure is relatively simple, reducing costs and improving the overall operational reliability.

[0045] See Figure 1 The leveling device includes a leveling mechanism 100 and a cleaning mechanism 200.

[0046] The leveling mechanism 100 includes a lifting unit 110, a rotating unit 120, and a scraper 130. The output end of the lifting unit 110 is connected to the rotating unit 120, and the output end of the rotating unit 120 is connected to the scraper 130. The lifting unit 110 can drive the rotating unit 120 to move up and down, thereby switching the scraper 130 between a leveling position and a cleaning position. Compared with the existing method of manually cleaning the scraper, the lifting unit 110 can automatically move the scraper 130 into the cleaning position, simplifying the operation steps, reducing manpower input, and ensuring the stability of the cleaning process. The rotating unit 120 can drive the scraper 130 to rotate between the cleaning position and the leveling position. Specifically, in the leveling position, the rotating unit 120 can drive the scraper 130 to rotate to evenly level the material, while in the cleaning position, it can work in conjunction with the cleaning mechanism 200 to ensure that all parts of the scraper 130 are exposed to the cleaning range of the cleaning mechanism 200, ensuring thorough cleaning without any blind spots.

[0047] The cleaning mechanism 200 includes an air blowing unit 220, a suction unit 230, and a housing 210 with an openable and closable opening 211 at the bottom. The output end of the rotating unit 120 slides and is sealed through the top of the housing 210 to drive the scraper 130 to extend through the opening 211 to a flat position outside the housing 210 or to a cleaning position inside the housing 210.

[0048] When the scraper 130 is in the cleaning position, the opening 211 is closed, forming a sealed space inside the cover 210. This effectively confines materials blown off the scraper 130 during the cleaning process, such as dust and particulate matter, within the cover 210, preventing secondary pollution to the external environment.

[0049] The air blowing unit 220 blows air onto the scraper 130 located in the cleaning position to remove residual material from the scraper 130. The air blowing unit 220 effectively strips material adhering to the surface of the scraper 130 by forming a high-speed airflow, and works in conjunction with the rotating unit 120 to ensure that the scraper 130 is cleaned from all angles. The suction unit 230 sucks away material that has detached from the scraper 130 to prevent secondary deposition, and simultaneously collects contaminants for centralized treatment.

[0050] Compared to the traditional approach of separately driving the air blowing unit 220 and the suction unit 230 to clean around the scraper 130, the above-mentioned technical solution cleverly utilizes the inherent rotating unit 120 for scraping materials to drive the cleaning process. This achieves a high degree of integration and structural simplification of the device. Simplified structure means fewer points of failure, improving the overall reliability of the leveling device. Simultaneously, simplified structure reduces component costs and energy consumption, facilitating automated intelligent maintenance and resulting in significant overall economic benefits. Furthermore, combining the rotational motion of the scraper 130 with suction and blowing achieves dynamic and all-around cleaning of the scraper 130. During the cleaning process, the synergistic effect of airflow scouring and centrifugal force produces a "1+1>2" cleaning effect, significantly improving the thoroughness and efficiency of cleaning.

[0051] Optionally, a through hole can be provided at the top of the housing 210, and the output end of the rotating unit 120 can be slidably and sealed through the through hole. This arrangement allows the rotating unit 120 to smoothly drive the scraper 130 between the flattening position and the cleaning position, and effectively prevents gas inside the housing 210 from leaking from the connection between the rotating unit 120 and the housing 210.

[0052] Optionally, see [link to relevant documentation] Figure 1 In one possible embodiment, cover plates 240 are slidably connected to both sides of the bottom of the housing 210. The two cover plates 240 can approach each other to seal and close the opening 211, and the two cover plates 240 can also move away from each other to open the opening 211. It is understood that the opening 211 is opened when the scraper 130 needs to enter or exit the housing 210, and the opening 211 is closed during the cleaning process to ensure that the housing 210 is isolated from the external environment and to prevent dust generated during the cleaning process from escaping. The opening and closing of the opening 211 at the bottom of the housing 210 is achieved by opening and closing the two cover plates 240, resulting in a simple structure, easy control, and good sealing performance.

[0053] Optionally, see [link to relevant documentation] Figure 1In one possible embodiment, each cover plate 240 is provided with a corresponding first drive member 250. The output end of the first drive member 250 is connected to the corresponding cover plate 240 and is used to drive the cover plate 240 to move. Driving the cover plate 240 to open and close via the first drive member 250 is more conducive to the automation of the cleaning of the scraper 130 and reduces the labor intensity of workers compared with the solution of manually pushing the cover plate 240 to open and close.

[0054] Optionally, the first driving component 250 can be a cylinder, hydraulic cylinder, electric push rod, synchronous belt mechanism, etc., which can be set according to actual needs, and this application does not make specific limitations.

[0055] Optionally, see [link to relevant documentation] Figure 1 In one possible embodiment, sealing strips 260 are provided on the sides where the two cover plates 240 meet. When the two cover plates 240 are joined, the two sealing strips 260 on the two cover plates 240 fit together to seal the opening 211, thereby effectively preventing the material blown away from the scraper 130 during the cleaning process from falling from the opening 211 to the flattened position due to gravity or other reasons, thus preventing the flattened position from being contaminated by the material.

[0056] Optionally, the sealing strip 260 can be made of an elastic material. The elastic deformation of the elastic material can buffer the squeezing pressure generated when the two cover plates 240 are joined together, and the elastic deformation can make the two cover plates 240 fit together more tightly, ensuring the sealing effect.

[0057] Optionally, the sealing strip 260 can be made of rubber or silicone.

[0058] Optionally, see [link to relevant documentation] Figure 1 In one possible embodiment, a detection mechanism 270 is provided on the cover plate 240, which is used to detect the opening and closing state of the two cover plates 240. Since the cleaning of the scraper 130 needs to be carried out within the sealed housing 210, the detection mechanism 270 detects the opening and closing state of the two cover plates 240. On the one hand, this reduces the risk of cleaning the scraper 130 when the opening 211 of the housing 210 is open, thereby effectively preventing dust leakage and improving the safety and reliability of the cleaning process. On the other hand, it facilitates the realization of fully automatic cleaning of the scraper 130.

[0059] Furthermore, the leveling device also includes a control system (not shown in the figure), which is communicatively connected to the lifting unit 110, rotating unit 120, air blowing unit 220, suction unit 230, and detection mechanism 270. Specifically, when cleaning the scraper 130, after the control system receives feedback from the detection mechanism 270 that the two cover plates 240 are in a closed state, it controls the rotating unit 120 to drive the scraper 130 to rotate and controls the air blowing unit 220 and suction unit 230 to work. That is, the scraper 130 can only be opened for cleaning after the two cover plates 240 are closed, in order to avoid the cleaned material from contaminating the environment.

[0060] To facilitate understanding, the working principle of this leveling device will be briefly introduced below:

[0061] The initial state of the leveling device is as follows: the scraper 130 is in the clean position, and the two covers 240 are in the closed state. This configuration protects the scraper 130 from environmental dust contamination through the airtightness of the cover 210.

[0062] After receiving the leveling operation signal, the control system controls the two first drive components 250 to move, causing the two cover plates 240 to move in opposite directions, so as to open the opening 211 at the bottom of the cover 210 and make room for movement.

[0063] When the control system receives a signal from the detection mechanism 270 that the two cover plates 240 are fully open, the control lifting unit 110 drives the rotating unit 120 to move downward, so that the rotating unit 120 drives the scraper 130 from the cleaning position to the flat position.

[0064] When the scraper 130 moves to the leveling position, the control system controls the rotating unit 120 to drive the scraper 130 to rotate at a speed suitable for leveling operations. After the preset leveling time, the control system controls the rotating unit 120 to turn off. Then, the control system controls the lifting unit 110 to drive the rotating unit 120 to rise, so that the rotating unit 120 drives the scraper 130 back to the cleaning position.

[0065] After the scraper 130 moves to the cleaning position, the control system controls the two first drive members 250 to move, causing the two cover plates 240 to move towards each other to close the opening 211 at the bottom of the cover 210.

[0066] When the control system receives a signal from the detection mechanism 270 that the two covers 240 are completely closed, the control system controls the rotating unit 120 to drive the scraper 130 to rotate at a low speed. Subsequently, the control system controls the blowing unit 220 and the suction unit 230 to start synchronously, so that the entire surface of the scraper 130 can be cleaned by the blowing unit 220. After the airflow blows away the material on the surface of the scraper 130, it will be sucked away by the suction unit 230 in time. After the scraper 130 rotates at this low speed for a period of time, the control system controls the rotating unit 120 to drive the scraper 130 to rotate at a higher speed. The higher speed can generate a larger centrifugal force, which can assist the blowing unit 220 to remove the material with strong adhesion on the scraper 130, thereby improving the cleaning effect of the scraper 130.

[0067] After the scraper 130 rotates at this high speed for a period of time, the control system controls the rotation unit 120, the air blowing unit 220 and the suction unit 230 to shut down. At this time, the cleaning by the scraper 130 is finished.

[0068] Afterward, the leveling device remains in its initial state, awaiting the next leveling operation instruction.

[0069] It is worth noting that the control system can be a centralized or distributed controller. For example, the controller can be a single microcontroller or a combination of multiple distributed microcontrollers. The microcontroller can run a control program to control the lifting unit 110, the rotating unit 120, the blowing unit 220, and the suction unit 230 to achieve their functions.

[0070] Furthermore, the detection mechanism 270 can be a displacement sensor, photoelectric switch, or limit switch, etc., which can be set according to actual needs, and this application does not make specific limitations.

[0071] In one possible embodiment, the detection mechanism 270 is a displacement sensor. Specifically, the displacement sensor includes a detection part and a fixing part. The detection part is fixedly connected to the mating side of one of the cover plates 240, and the sensing end of the detection part extends along the mating direction of the two cover plates 240. The fixing end is fixedly connected to the side wall of the cover 210 on the side where the other cover plate 240 is located. When the two cover plates 240 are mated, the detection part moves with the cover plates 240, and the distance between the sensing end and the fixing part decreases to a preset value, thereby determining that the two cover plates 240 are in a closed state.

[0072] In another possible embodiment, the detection mechanism 270 is a photoelectric switch. Specifically, the photoelectric switch includes a transmitter and a receiver that cooperate with each other. Taking a slotted photoelectric switch as an example, the transmitter and receiver are fixedly connected to the mating side of one of the cover plates 240; the mating side of the other cover plate 240 is correspondingly provided with a light-shielding member, and when the two cover plates 240 are mated, the light-shielding member can be located within the slot of the slotted photoelectric switch, that is, blocking the optical path signal between the transmitter and the receiver. By blocking the optical path, it is determined that the two cover plates 240 are in a closed state.

[0073] Alternatively, in one possible embodiment, see [link to previous document]. Figure 1 The suction unit 230 includes a suction port 231, a negative pressure dirt-holding component 232, a negative pressure generating component (not shown in the figure), and a connecting pipe 233.

[0074] The suction port 231 is connected to the interior of the housing 210 and is used to absorb the material swept off the housing 210. The connecting pipe 233 connects the suction port 231, the dirt-holding component 232, and the negative pressure generating component. The negative pressure generating component provides suction force to the suction port 231. The dirt-holding component 232 holds the collected material. When the suction unit 230 is working, material detached from the scraper 130 inside the housing 210 is promptly carried away along the airflow path of "suction port 231 - connecting pipe 233 - dirt-holding component 232," preventing material from circulating and floating inside the housing 210 or re-adhering to the surface of the scraper 130, thus improving the thoroughness and stability of cleaning. Furthermore, the suction unit 230 has a simple structure and uses the negative pressure principle for material adsorption, resulting in excellent suction performance. Additionally, the centralized collection of material through the dirt-holding component 232 is beneficial for environmental protection.

[0075] Optionally, in one possible embodiment, the negative pressure generating element can be a fan, and the dirt-holding component 232 is provided with a negative pressure interface, with the air inlet of the fan connected to the negative pressure interface of the dirt-holding component 232. With this configuration, the material inside the cover 210 can be quickly sucked in by the suction port 231 and collected into the dirt-holding component 232 through the connecting pipe 233.

[0076] Alternatively, in one possible embodiment, see [link to previous document]. Figure 1 The air blowing unit 220 includes an air nozzle 221 mounted on the housing 210. The air outlet of the air nozzle 221 communicates with the interior of the housing 210 and is used to spray gas onto the scraper 130 located in the cleaning position. This configuration effectively blows off the material from the surface of the scraper 130.

[0077] Alternatively, in one possible embodiment, see [link to previous document]. Figure 1The air nozzle 221 and the suction port 231 are positioned opposite each other, so that the jet airflow forms a stable airflow path after impacting the scraper 130, and is promptly drawn out of the cover 210 under the negative pressure of the suction port 231. Through the cooperation of the air nozzle 221 and the suction unit 230, a through-flow directional airflow path can be formed inside the cover 210: the material is immediately sucked away after being blown down by the airflow, which not only ensures that the surface of the scraper 130 is thoroughly cleaned, but also prevents dust from spreading to the external environment.

[0078] Alternatively, in another possible embodiment, multiple air nozzles 221 are provided, and the multiple air nozzles 221 are arranged at intervals along the circumference of the cover 210, which can form a high-speed airflow at multiple angles within the cover 210 to effectively peel off the material adhering to the surface of the scraper 130 and achieve three-dimensional cleaning during the rotation of the scraper 130.

[0079] Alternatively, in one possible embodiment, see Figure 1 and Figure 2 The scraping component 130 includes a first scraping part 131 and a second scraping part 132. The first scraping part 131 and the second scraping part 132 are disposed on both sides of the rotation center of the scraping component 130. Both the first scraping part 131 and the second scraping part 132 include a plurality of spaced scraping teeth 1311. A notch 1312 is formed between two adjacent scraping teeth 1311. The notches 1312 of the first scraping part 131 and the notches 1312 of the second scraping part 132 are asymmetrically arranged with respect to the rotation center of the scraping component 130.

[0080] Normally, when a scraper with a straight scraping edge rotates and flattens materials, the materials are continuously thrown towards the edge of the flattening position under the action of centrifugal force, resulting in a "volcano-like" shape with a thin middle and thick edges, and poor flattening effect. In this embodiment, the first scraping part 131 and the second scraping part 132 of the scraper 130 are arranged in an alternating pattern of "scraping teeth 1311-notch 1312": when the scraper 130 is driven to rotate by the rotating unit 120, the scraping teeth 1311 on one side apply shearing and pushing to the material, and the notch 1312 on the side away from the rotation center provides an immediate "give way" to temporarily accommodate the material. Then, the material temporarily accommodated in the notch 1312 is continued to be pushed by the corresponding scraping teeth 1311 on the other side, thereby forming an alternating scraping trajectory, repeatedly pushing and flattening the material, resulting in more uniform flattening, significantly reduced edge accumulation, and better flattening effect.

[0081] From a cleaning collaboration perspective, the toothed notch 1312 edge of the scraper 130 enriches the exposed boundary. During the cleaning process, the airflow blown by the blowing unit 220 is more likely to generate local shear at the first scraper 131 and the second scraper 132, making it easier to pry up and peel off the attached material. The notch 1312 provides a passage path for the blown material, making it easy for it to be promptly carried away by the suction port 231 on the opposite side, which perfectly matches the airflow path generated by the cleaning mechanism 200.

[0082] Alternatively, in one possible embodiment, the scraper teeth 1311 are trapezoidal with a flat bottom edge, so that the material is spread out more evenly.

[0083] Optionally, in one possible embodiment, on the pushing surface where the first scraping part 131 contacts the material, a guide slope 1313 is provided on at least one of the opposite sides of the scraping teeth 1311. The guide slope 1313 is used to guide the material to the notch 1312 adjacent to the guide slope 1313. Similarly, on the pushing surface where the second scraping part 132 contacts the material, a guide slope 1313 is also provided on at least one of the opposite sides of the scraping teeth 1311. With this configuration, during the process of the scraper 130 spreading the material by rotating, when the material contacts the scraping teeth 1311, the guide slope 1313 can guide the material to flow more smoothly to the notch 1312, reducing the accumulation and jamming of the material on the pushing surface. Furthermore, the guide slope 1313 can also assist the scraping teeth 1311 in more efficiently combing and spreading the material, improving the smoothness of the spreading process and the uniformity of the material spreading.

[0084] Alternatively, in another possible embodiment, the scraper 130 is detachably connected to the rotating shaft 122, making it easy for the scraper 130 to adapt to different working conditions and maintenance.

[0085] Alternatively, in one possible embodiment, see [link to previous document]. Figure 1 The lifting unit 110 includes a mounting bracket 111, a slide rail 112, a slider 113, a connector 114, and a second drive unit 115.

[0086] Specifically, the slide rail 112 is mounted on the mounting bracket 111 and extends vertically. The slider 113 is slidably connected to the slide rail 112. One end of the connecting member 114 is connected to the slider 113, and the other end is connected to the rotating unit 120, so that when the slider 113 moves up and down along the slide rail 112, it drives the rotating unit 120 and the scraper 130 to move up and down synchronously. The second driving member 115 is mounted on the mounting bracket 111, and the output end of the second driving member 115 is connected to the connecting member 114, which drives the connecting member 114 to drive the rotating unit 120 to move up and down, thereby driving the scraper 130 to switch between the flattening position and the cleaning position. The lifting unit 110 has a simple structure and is easy to control. Furthermore, by guiding the movement of the connecting member 114 through the cooperation of the slide rail 112 and the slider 113, the movement of the scraper 130 between the flattening position and the cleaning position is guided, which can improve the stability and smoothness of the movement of the scraper 130, as well as improve the positional accuracy of the scraper 130.

[0087] Alternatively, in one possible embodiment, see [link to previous document]. Figure 1 The lifting unit 110 includes multiple sliders 113, all of which are slidably connected to the slide rail 112. The connecting member 114 includes a vertical section 1141 and a horizontal section 1142 connected to each other. The vertical section 1141 is simultaneously connected to the multiple sliders 113, and the combined support of the multiple sliders 113 disperses the load and improves stability during lifting. The end of the horizontal section 1142 away from the vertical section 1141 extends above the cover 210, and the fixed end of the rotating unit 120 is installed at a position opposite to the cover 210 on the horizontal section 1142. Positioning the horizontal section 1142 directly above the cover 210 allows the output end of the rotating unit 120 to pass through the top of the cover 210 via the shortest path, improving the structural compactness of the leveling device.

[0088] Alternatively, in one possible embodiment, see [link to previous document]. Figure 1 Multiple sliders 113 can be arranged at equal intervals along the slide rail 112 to further improve the uniformity of load-bearing capacity.

[0089] Alternatively, in another possible embodiment, two slide rails 112 can be provided on the mounting bracket 111, with the two slide rails 112 arranged in parallel and spaced apart. Each slide rail 112 can be provided with one or more sliders 113, and all sliders 113 are connected to the vertical section 1141. This arrangement can improve the smoothness and stability of the lifting movement of the connecting member 114.

[0090] Further optionally, in one possible embodiment, a first reinforcing rib may be provided between the horizontal segment 1142 and the vertical segment 1141. Exemplarily, one end of the first reinforcing rib may be connected to the horizontal segment 1142, and the other end may be connected to the vertical segment 1141, forming a "triangular support structure" between the horizontal segment 1142, the vertical segment 1141, and the first reinforcing rib. This improves the stability of the connection between the horizontal segment 1142 and the vertical segment 1141, thereby mitigating the vibration impact of the high-frequency rotation of the rotating unit 120 on the lifting unit 110.

[0091] Optionally, in one possible embodiment, the second drive member 115 may be a cylinder; in another possible embodiment, the second drive member 115 may also be a hydraulic cylinder, a linear motor, an electric push rod, etc.

[0092] Alternatively, in one possible embodiment, see [link to previous document]. Figure 1 The rotating unit 120 includes a third driving member 121 and a rotating shaft 122. One end of the rotating shaft 122 is connected to the third driving member 121, and the other end of the rotating shaft 122 is connected to the scraper 130. The third driving member 121 drives the scraper 130 to rotate in the cleaning position and the flattening position through the rotating shaft 122. The structure is simple, the power transmission is direct, and it is easy to operate.

[0093] Optionally, in one possible embodiment, a second reinforcing rib may be provided between the rotating shaft 122 and the scraper 130. Exemplarily, one end of the second reinforcing rib may be connected to the rotating shaft 122, and the other end may be connected to one end of the scraper 130, forming a "triangular support structure" between the rotating shaft 122, the end of the scraper 130, and the second reinforcing rib. This improves the stability of the connection between the rotating shaft 122 and the scraper 130, thereby enhancing the stability and durability of the rotating shaft 122 and the scraper 130 during the leveling process.

[0094] Optionally, in one possible embodiment, a third reinforcing rib may be provided on the scraper 130 along the rotation direction. Since the scraper 130 continuously comes into frictional contact with the material during rotation, it will be subjected to the reaction force exerted by the material. The third reinforcing rib can effectively disperse the reaction force and enhance the deformation resistance of the scraper 130.

[0095] Optionally, in one possible embodiment, the third drive element 121 may be a stepper motor; in another possible embodiment, the third drive element 121 may also be a servo motor, a brushless DC motor, or a pneumatic motor, etc.

[0096] Understandably, when the third driving component 121 is a motor, the rotation speed of the motor can be controlled to adapt to the leveling and cleaning processes. For example, during the leveling process, the motor drives the scraper 130 to rotate at a low speed to evenly and stably level the material; while during the cleaning process, the motor drives the scraper 130 to rotate at a high speed to generate a larger centrifugal force to throw the material off the surface of the scraper 130, resulting in a better cleaning effect.

[0097] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A leveling device, characterized in that, include: The leveling mechanism (100) includes a lifting unit (110), a rotating unit (120), and a scraper (130). The output end of the lifting unit (110) is connected to the rotating unit (120), and the output end of the rotating unit (120) is connected to the scraper (130). The lifting unit (110) can drive the rotating unit (120) to move up and down to switch the scraper (130) between the leveling position and the cleaning position. The rotating unit (120) can drive the scraper (130) to rotate between the cleaning position and the leveling position. The cleaning mechanism (200) includes an air blowing unit (220), a suction unit (230), and a housing (210) with an openable and closable opening (211) at the bottom. The output end of the rotating unit (120) slides and seals through the top of the housing (210) to drive the scraper (130) to extend through the opening (211) to the flattened position outside the housing (210) or retract to the cleaning position inside the housing (210). The opening (211) is closed when the scraper (130) is in the cleaning position. The air blowing unit (220) blows air onto the scraper (130) in the cleaning position to blow away the material remaining on the scraper (130). The suction unit (230) sucks away the material that has detached from the scraper (130).

2. The leveling device according to claim 1, characterized in that, At the bottom of the cover (210), cover plates (240) are slidably connected to both sides of the cover (210). The two cover plates (240) can approach each other to seal and close the opening (211), and the two cover plates (240) can also move away from each other to open the opening (211).

3. The leveling device according to claim 2, characterized in that, Each of the cover plates (240) is provided with a first driving member (250), the output end of the first driving member (250) is connected to the corresponding cover plate (240) and is used to drive the cover plate (240) to move; And / or, the two cover plates (240) are provided with sealing strips (260) on their mating sides.

4. The leveling device according to claim 2, characterized in that, The cover plate (240) is provided with a detection mechanism (270), which is used to detect the opening and closing state of the two cover plates (240).

5. The leveling device according to claim 1, characterized in that, The suction unit (230) includes: The suction port (231) is connected to the interior of the cover (210) and is used to absorb the material swept down inside the cover (210); A contaminant (232) is used to hold collected materials; A negative pressure generating element is used to provide suction force for the suction port (231); Connecting pipe (233) to make fluid communication between the suction port (231), the dirt-holding component (232) and the negative pressure generating component.

6. The leveling device according to claim 5, characterized in that, The blowing unit (220) includes a nozzle (221) mounted on the housing (210), the outlet of the nozzle (221) being in communication with the interior of the housing (210) for spraying gas onto the scraper (130) located at the cleaning position; The air nozzle (221) is arranged opposite to the suction port (231); or, multiple air nozzles (221) are provided, and multiple air nozzles (221) are arranged at intervals along the circumference of the cover (210).

7. The leveling device according to claim 1, characterized in that, The scraping component (130) includes a first scraping part (131) and a second scraping part (132). The first scraping part (131) and the second scraping part (132) are disposed on both sides of the rotation center of the scraping component (130). The first scraping part (131) and the second scraping part (132) each include a plurality of spaced scraping teeth (1311). A notch (1312) is formed between two adjacent scraping teeth (1311). The notch (1312) of the first scraping part (131) and the notch (1312) of the second scraping part (132) are asymmetrically arranged with respect to the rotation center of the scraping component (130).

8. The leveling device according to any one of claims 1-7, characterized in that, The lifting unit (110) includes: Mounting bracket (111); A slide rail (112) is provided on the mounting bracket (111) and extends in the vertical direction; The slider (113) is slidably connected to the slide rail (112); The connector (114) is connected at one end to the slider (113) and at the other end to the rotating unit (120); The second drive member (115) is disposed on the mounting bracket (111). The output end of the second drive member (115) is connected to the connector (114) and is used to drive the connector (114) to drive the rotating unit (120) to rise and fall.

9. The leveling device according to claim 8, characterized in that, The lifting unit (110) includes a plurality of sliders (113), all of which are slidably connected to the slide rail (112); The connector (114) includes a vertical section (1141) and a horizontal section (1142) connected to each other. The vertical section (1141) is connected to a plurality of sliders (113). The horizontal section (1142) extends from one end away from the vertical section (1141) to the top of the cover (210). The fixed end of the rotating unit (120) is installed at a position opposite to the horizontal section (1142) and the cover (210).

10. The leveling device according to any one of claims 1-7, characterized in that, The rotating unit (120) includes a third driving member (121) and a rotating shaft (122). One end of the rotating shaft (122) is connected to the third driving member (121), and the other end of the rotating shaft (122) is connected to the scraping member (130). The third driving member (121) drives the scraping member (130) to rotate in the cleaning position and the flattening position through the rotating shaft (122).

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