Dust blowing machine

Abstract

The invention discloses a dust blowing machine which comprises a dust blowing box, a plurality of supporting frames are arranged at the bottom of the dust blowing box, a dust removal space is formed in the dust blowing box, a clamping mechanism used for clamping a small display screen shell and a dust removal mechanism are arranged in the dust removal space, an air outlet is formed in the top of the dust removal space, and an adsorption plate is arranged at the air outlet. The side, close to the dust removal space, of the dust blowing box is slidably connected with a protective door. According to the technical scheme, collision or friction of the display screen shell in the dust removal process is reduced, and therefore the appearance quality and the overall quality of a product are improved.

Description

Technical Field

[0001] This invention relates to the field of dust blower technology, and particularly to a dust blower. Background Technology

[0002] Dust blowers are mainly used to remove dust and impurities from the surface of workpieces, ensuring that the workpiece surface is clean and preventing dust and particles from affecting subsequent processing, painting or assembly processes.

[0003] However, when the dust blower removes dust from the casings of some small displays, the casings are small and light, while the airflow from the dust blower is strong. This makes the casings prone to shaking during the dust removal process, which can lead to collisions or friction between the casings. This may cause scratches or local deformation on the casing surface, thus affecting the appearance and quality of the product. Summary of the Invention

[0004] The main objective of this invention is to provide a dust blower to reduce collisions or friction that occur to the display screen housing during dust removal, thereby improving the appearance quality and overall quality of the product.

[0005] To achieve the above objectives, the present invention proposes a dust blower, including a dust blowing box, a plurality of support frames at the bottom of the dust blowing box, a dust removal space inside the dust blowing box, a clamping mechanism for clamping a small display screen shell and a dust removal mechanism inside the dust removal space, an air outlet at the top of the dust removal space and an adsorption plate at the air outlet, and a protective door slidably connected to the side of the dust blowing box near the dust removal space. The clamping mechanism includes a first clamping frame, connecting blocks disposed on the upper and lower sides of the first clamping frame, and a second clamping frame rotatably connected to one of the connecting blocks on one side. The other side of the second clamping frame is detachably connected to another connecting block. Both the first clamping frame and the second clamping frame are provided with wire mesh. Support blocks are fixedly connected to the upper and lower sides inside the dust removal space. Each support block is provided with a slide rail, and each connecting block is slidably connected to the corresponding slide rail.

[0006] In one possible implementation, a fixing mechanism for fixing the connecting block is also included. The fixing mechanism includes a slot provided on the support block, a locking block that engages with the slot, and a sliding component that pushes the locking block away from the slot. The connecting block has a receiving groove on the side near the protective door, and a limiting groove is provided at the top of the receiving groove. The locking block is slidably connected to the inner wall of the limiting groove, and one side extends into the receiving groove. The sliding component is disposed inside the receiving groove.

[0007] In one possible implementation, the sliding assembly includes an elastic element, a sliding block, and a pressure rod. The sliding block is disposed inside the receiving groove and is slidably connected to the inner wall of the receiving groove. One side of the elastic element is fixedly connected to the side of the receiving groove, and the other side of the elastic element is fixedly connected to the sliding block. The sliding block is provided with a sliding groove, and one side of the sliding groove is inclined downward from the side of the sliding block closest to the elastic element. One side of the locking block is provided with a sliding post, and the sliding post is slidably connected to the inner wall of the sliding groove. The pressure rod is fixedly connected to the side of the sliding block away from the elastic element, and one side of the pressure rod extends to the outside of the connecting block.

[0008] In one possible implementation, the sliding column is cylindrical in shape and is rotatably connected to the locking block, and the side of the pressure rod away from the connecting block is arc-shaped.

[0009] In one possible implementation, the dust removal mechanism includes a lifting plate, a nozzle, a moving block, a lifting screw, and a first motor. A guide rod is fixedly connected to one side of the dust removal space, and a fixed plate is fixedly connected to the side of the dust removal space away from the protective door. One side of the lifting screw is rotatably connected to the fixed plate, and the other side of the lifting screw is rotatably connected to the bottom of the dust removal space. The first motor is located on the top of the fixed plate, and its output end is fixedly connected to the lifting screw. One side of the lifting plate is threadedly connected to the lifting screw, and the other side of the lifting plate is slidably connected to the guide rod. The moving block is located on the top of the lifting plate, and the nozzle is located on the side of the moving block and communicates with the interior of the moving block. The nozzle faces the side of the first clamping frame, and an air pipe connector is provided on the side of the moving block.

[0010] In one possible implementation, the top of the lifting plate is provided with a moving mechanism that causes the moving block to reciprocate on the surface of the lifting plate. The moving mechanism includes a first pulley, a second pulley, a synchronous belt connecting the first pulley and the second pulley, and a second motor that drives the first pulley to rotate. Support seats are fixedly connected to both sides of the top of the lifting plate. The first pulley and the second pulley are rotatably connected to their respective support seats. The output end of the second motor is fixedly connected to the first pulley. The moving block is fixedly connected to the synchronous belt through a clamping plate.

[0011] In one possible implementation, several limiting rods are fixedly connected to opposite sides of the two support seats, and the moving block is slidably connected to the limiting rods.

[0012] The technical solution of this invention, by setting up a clamping mechanism, can directly fix the small display screen casing, thereby solving the problem of the casing shaking due to lack of fixation under airflow. It also avoids scratches and deformation caused by collisions or friction between casings, thus improving the product's appearance and overall quality. The adsorption plate at the air outlet effectively adsorbs dust stirred up by the airflow during dust removal, preventing dust from falling back onto the cleaned casing surface and ensuring dust removal effectiveness. The sliding protective door facilitates the loading and unloading of the casing by personnel and further ensures the airtightness of the dust removal space when closed. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the dust blowing box in the embodiment; Figure 3 This is a schematic diagram of the structure of the support block, connecting block, first clamping frame, and second clamping frame in this embodiment; Figure 4 for Figure 3 A magnified view of a section at point A in the middle; Figure 5 This is a partial structural cross-sectional view of the present invention; Figure 6 This is a schematic diagram of the dust removal structure and the moving mechanism in this embodiment; Figure 7 for Figure 6 A magnified view of a section at point B in the middle.

[0015] Reference numerals: 1. Dust blowing box; 101. Support frame; 102. Dust removal space; 103. Air outlet; 104. Adsorption plate; 105. Protective door; 2. First clamping frame; 201. Connecting block; 202. Second clamping frame; 203. Wire mesh; 204. Support block; 205. Slide rail; 3. Slot; 301. Slotting block; 302. Receiving slot; 303. Limiting slot; 304. Elastic element; 305. Sliding block 306. Pressure rod; 307. Sliding groove; 308. Sliding column; 4. Lifting plate; 401. Nozzle; 402. Moving block; 403. Lifting screw; 404. First motor; 405. Guide rod; 406. Fixing plate; 407. Air pipe connector; 408. First pulley; 409. Second pulley; 410. Synchronous belt; 411. Second motor; 412. Support base; 413. Clamping plate; 414. Limiting rod.

[0016] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0018] refer to Figure 1-7 This embodiment proposes a dust blower, whose main supporting structure is a dust blowing box 1. To provide stable support, the base of the dust blowing box 1 is equipped with several support frames 101. The dust blowing box 1 has a dust removal space 102 inside, and within the dust removal space 102, a clamping mechanism is configured to securely clamp the small display screen casing. It is also equipped with a high-efficiency dust removal mechanism to ensure thorough dust removal from the casing. To ensure smooth dust removal, an air outlet 103 is provided at the top of the dust removal space 102, and an adsorption plate 104 is installed at the air outlet 103. The adsorption plate 104 adsorbs the dust that is raised, preventing it from falling back onto the cleaned surface.

[0019] The adsorption plate 104 can be made of electrostatic fiber materials (such as electrostatic filters) or porous sponge materials. These materials not only have good air permeability but also excellent adsorption properties, enabling them to quickly capture dust in the air and thus ensure the long-lasting cleaning effect. Furthermore, the dust blowing box 1 has a sliding protective door 105 on the side closest to the dust removal space 102. The protective door 105 effectively isolates the dust removal space 102, ensuring safety during operation. To facilitate real-time monitoring of the dust removal status of the workpieces inside the dust removal space 102, the protective door 105 can be made of transparent acrylic sheet material, providing a good viewing angle without affecting operation.

[0020] By setting up a clamping mechanism, the small display screen casing can be directly fixed, solving the problem of the casing shaking due to lack of fixation under airflow. This avoids scratches and deformation caused by collisions or friction between casings, thereby improving the product's appearance and overall quality. Specifically, the clamping mechanism includes a first clamping frame 2, connecting blocks 201 disposed on the upper and lower sides of the first clamping frame 2, and a second clamping frame 202 rotatably connected to one of the connecting blocks 201 on one side. The other side of the second clamping frame 202 is detachably connected to the other connecting block 201 (e.g., by bolts or magnetic attraction). In this embodiment, a magnetic attraction method is preferred for ease of operation. To ensure stable and convenient clamping, both the first clamping frame 2 and the second clamping frame 202 are provided with wire mesh 203.

[0021] Support blocks 204 are fixedly connected to both the upper and lower sides of the dust removal space 102. Each support block 204 is equipped with a slide rail 205, and each connecting block 201 is slidably connected to the corresponding slide rail 205 to ensure that the clamping frame can slide and adjust smoothly. When the operator needs to clamp the small display screen shell, firstly, one side of the second clamping frame 202 is detached from one of the connecting blocks 201 and rotated around the other connecting block 201. At this time, the operator can place the shell to be cleaned on the wire mesh 203 on the first clamping frame 2 in a certain arrangement. After placement, the operator rotates the first clamping frame 2 in the opposite direction and fixes it to the connecting block 201, so that the display screen shell is firmly clamped in the wire mesh 203 between the first clamping frame 2 and the second clamping frame 202, ensuring stability during the cleaning process. Then, the connecting block 201 is pushed into the dust removal space 102 along the slide rail 205 and the protective door 105 is closed.

[0022] It is worth noting that due to the good toughness and elasticity of the wire mesh 203, even wide display screen housings can be effectively clamped, greatly improving the applicability of the clamping mechanism. More importantly, the perforated structure of the wire mesh 203 is crucial for the dust removal effect of the dust blower. The dust blower relies on airflow for dust removal, and the air permeability and porous structure of the wire mesh 203 do not obstruct the smooth passage of airflow, ensuring that the airflow effectively contacts and cleans the housing surface, thereby achieving comprehensive and thorough dust removal. If a solid clamping plate is used, the airflow may be blocked, resulting in insufficient contact with every part of the housing, thus affecting the dust removal effect. Therefore, this wire mesh 203 structure not only ensures clamping stability but also effectively balances comprehensive dust removal and ease of operation.

[0023] Next, a fixing mechanism for fixing the connecting block 201 is also provided. The fixing mechanism includes a slot 3 on the support block 204, a locking block 301 that engages with the slot 3, and a sliding component that pushes the locking block 301 out of the slot 3. A receiving groove 302 is provided on the side of the connecting block 201 near the protective door 105. A limiting groove 303 is provided at the top of the receiving groove 302. The locking block 301 slides and connects to the inner wall of the limiting groove 303, and one side extends into the receiving groove 302. The sliding component is located inside the receiving groove 302. Through the fixed mechanism, the risk of the first clamping frame 2 and the second clamping frame 202 shifting or colliding under the impact of airflow can be avoided, ensuring the stability of the housing to be processed inside the dust removal space 102.

[0024] Specifically, the sliding assembly consists of several parts, including an elastic element 304, a sliding block 305, and a pressure rod 306. The sliding block 305 is installed inside the receiving groove 302 and is slidably connected to the inner wall of the receiving groove 302. One side of the elastic element 304 is fixedly connected to the side of the receiving groove 302, and the other side is fixedly connected to the sliding block 305, thereby preventing the elastic element 304 from shifting or misaligning when subjected to force. The sliding block 305 is provided with a sliding groove 307, wherein one side of the sliding groove 307 starts from the end of the sliding block 305 near the elastic element 304 and is inclined downward, for retracting the locking block 301 into the limiting groove 303. To ensure that the locking block 301 can descend as the sliding block 305 moves, a sliding post 308 is provided on one side of the locking block 301, and the sliding post 308 is slidably connected to the inner wall of the sliding groove 307. The pressure rod 306 is fixedly connected to the side of the sliding block 305 away from the elastic element 304, and one end of the pressure rod 306 extends to the outside of the connecting block 201.

[0025] After the housing is cleaned, the operator can press the lever 306. The lever 306 will push one side of the sliding block 305 towards the compression elastic member 304. At the same time, the sliding groove 307 on the sliding block 305 will drive the locking block 301 to slide down and disengage from the locking groove 3 through the sliding column 308, and move to the side of the sliding groove 307 that is lower. At this time, the operator can pull out the first clamping frame 2 and the second clamping frame 202, and then remove the cleaned housing from the outside of the dust blowing box 1.

[0026] During installation, the operator should first press the pressure rod 306 to retract the locking block 301 into the limiting groove 303, and then gradually push the connecting block 201 into the dust removal space 102 along the slide rail 205. When the locking block 301 is aligned with the groove 3, the operator releases the pressure rod 306. At this time, the elastic element 304 returns to its original shape, pushing the sliding block 305 to move in the opposite direction, causing the locking block 301 to extend from the limiting groove 303 and engage with the groove 3, thus completing the fixing of the connecting block 201. The entire process can be completed with a simple pressing action, making the operation labor-saving and efficient.

[0027] In addition, in order to reduce the friction between the sliding column 308 and the sliding groove 307, the sliding column 308 is designed as a cylindrical structure, and the sliding column 308 is rotatably connected to the locking block 301. When the sliding column 308 slides along the sliding groove 307, the cylindrical structure can convert the sliding friction between the sliding groove 307 and the sliding column 308 into rolling friction, reducing the friction between the two, making the sliding of the locking block 301 smoother, avoiding the locking block 301 from getting stuck due to excessive friction, and ensuring the reliability of the sliding component operation.

[0028] Meanwhile, in order to facilitate the operator to press the lever 306, the side of the lever 306 away from the connecting block 201 is designed with an arc shape. The arc shape can prevent the operator's hand from being scratched when pressing the lever 306, thus improving the safety and comfort of operation.

[0029] In this embodiment, the dust removal mechanism includes a lifting plate 4, a nozzle 401, a moving block 402, a lifting screw 403, and a first motor 404. A guide rod 405 is fixedly connected to one side of the dust removal space 102, and a fixing plate 406 is fixedly connected to the side of the dust removal space 102 away from the protective door 105. One side of the lifting screw 403 is rotatably connected to the fixing plate 406, and the other side of the lifting screw 403 is rotatably connected to the bottom of the dust removal space 102. The first motor 404 is located on the top of the fixing plate 406, and the output end of the first motor 404 is fixedly connected to the lifting screw 403. The first motor 404 is also fixedly connected to the fixing plate 406 to ensure the stability of the first motor 404 during operation.

[0030] Next, one side of the lifting plate 4 is threadedly connected to the lifting screw 403, and the other side of the lifting plate 4 is slidably connected to the guide rod 405 to prevent the lifting plate 4 from shifting during movement, thereby improving stability. The moving block 402 is located on the top of the lifting plate 4, and the nozzle 401 is located on the side of the moving block 402 and communicates with the inside of the moving block 402. The nozzle 401 faces the first clamping frame 2. The side of the moving block 402 is provided with an air pipe connector 407 for connecting to an external air pipe.

[0031] This design uses a first motor 404 to drive a lifting screw 403 to rotate, which in turn moves the lifting plate 4 up and down along the guide rod 405. This causes the moving block 402 and the nozzle 401 on the lifting plate 4 to move up and down accordingly, achieving dust removal at different heights of the housing. When the air pipe connector 407 is connected to an external air source, the airflow is sprayed onto the surface of the housing through the nozzle 401 to remove dust. The sprayed gas is discharged through the air outlet 103, while the dust in the air is collected by the adsorption plate 104.

[0032] To expand the dust removal coverage of the nozzle 401, a moving mechanism is provided on the top of the lifting plate 4 to drive the moving block 402 to reciprocate on the surface of the lifting plate 4. This moving mechanism consists of a first pulley 408, a second pulley 409, a synchronous belt 410 connecting the two pulleys, and a second motor 411 that drives the first pulley 408 to rotate. Support seats 412 are fixedly connected to both sides of the top of the lifting plate 4. The first pulley 408 and the second pulley 409 are rotatably connected to their respective support seats 412. The output end of the second motor 411 is fixedly connected to the first pulley 408, and the moving block 402 is fixedly connected to the synchronous belt 410 via a clamping plate 413. When the second motor 411 is running, it drives the first pulley 408 to rotate. The first pulley 408 drives the second pulley 409 to rotate synchronously via the synchronous belt 410. The movable block 402, which is fixedly connected to the synchronous belt 410, moves back and forth on the top of the lifting plate 4 with the synchronous belt 410, thereby driving the nozzle 401 to achieve reciprocating motion in the horizontal direction. Combined with the up and down movement of the lifting plate 4, the nozzle 401 can achieve complete coverage of the shell surface in three-dimensional space, completely eliminating dust removal dead corners. In addition, the synchronous belt 410 transmission has the characteristics of smooth transmission and precise transmission ratio, which can ensure that the moving speed of the movable block 402 is uniform, avoid the impact of the dust removal effect on the dust removal effect due to the fluctuation of the moving speed of the nozzle 401, and ensure the stability of the dust removal operation. In addition, a main controller (such as a commonly used programmable logic controller (PLC) can be installed on the side of the dust blowing box 1, limit sensors can be installed on one side of the two support blocks 204, and position sensors for controlling the height of the lifting plate 4 can be configured. The position sensors are electrically connected to the first motor 404, and the limit sensors are electrically connected to the second motor 411. Both the first motor 404 and the second motor 411 are electrically connected to the main controller, forming a control system with the main controller as its core, enabling the coordinated operation of all components. The following describes the complete workflow of the dust blower: After the operation starts, the main controller first sends a command to start and rotate the first motor 404 (with a matching motor driver to control the motor speed and start / stop) of the lifting screw 403; the first motor 404 drives the lifting screw 403 to rotate, which in turn drives the lifting plate 4 to slowly descend along the guide rod 405. When the lifting plate 4 descends to the preset height, the position sensor (such as a proximity switch) at the corresponding position in the dust removal space 102 sends a position signal to the main controller. After receiving the signal, the main controller controls the first motor 404 to shut down. Subsequently, the main controller sends a start command to the second motor 411 (with a matching motor driver) driving the synchronous belt 410. The second motor 411 starts and drives the first pulley 408 to rotate. The first pulley 408 drives the second pulley 409 to rotate via the synchronous belt 410. The synchronous belt 410 drives the fixed moving block 402 and the nozzle 401 to move on the surface of the lifting plate 4. When the nozzle 401 moves to the vicinity of the limit sensors (such as photoelectric switches) on both sides of the support base 412, the limit sensors send a signal to the main controller. The main controller controls the second motor 411 to reverse, realizing the reverse movement of the nozzle 401 and completing the reciprocating motion. After the nozzle 401 completes one reciprocating movement, the limit sensors send a signal to the main controller again, and the main controller controls the second motor 411 to stop.

[0033] Afterward, the main controller starts the first motor 404 again, driving the lifting plate 4 to descend a further distance, and then repeats the above process of "the nozzle 401 moving back and forth". By repeating this cycle, comprehensive cleaning of all areas of the shell surface can be achieved. Finally, to prevent the movable block 402 from shifting during movement, several limiting rods 414 are fixedly connected to opposite sides of the two support blocks 204, and the movable block 402 is slidably connected to the limiting rods 414. The limiting rods 414 guide the movement direction of the movable block 402, ensuring that the movable block 402 always moves smoothly along the preset trajectory, avoiding deviation, thereby ensuring that the nozzle 401 is always aligned with the surface of the housing, ensuring the dust removal effect.

[0034] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and 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, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0035] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A dust blower, characterized in that: The device includes a dust blowing box (1), which has several support frames (101) at the bottom. The dust blowing box (1) has a dust removal space (102) inside. The dust removal space (102) has a clamping mechanism for clamping the shell of a small display screen and a dust removal mechanism. The dust removal space (102) has an air outlet (103) at the top and an adsorption plate (104) at the air outlet (103). A protective door (105) is slidably connected to the side of the dust blowing box (1) near the dust removal space (102). The clamping mechanism includes a first clamping frame (2), connecting blocks (201) disposed on the upper and lower sides of the first clamping frame (2), and a second clamping frame (202) rotatably connected to one of the connecting blocks (201) on one side. The other side of the second clamping frame (202) is detachably connected to another connecting block (201). Both the first clamping frame (2) and the second clamping frame (202) are provided with wire mesh (203). Support blocks (204) are fixedly connected to the upper and lower sides of the dust removal space (102). Each support block (204) is provided with a slide rail (205). Each connecting block (201) is slidably connected to the corresponding slide rail (205).

2. A dust blower according to claim 1, characterized in that: It also includes a fixing mechanism for fixing the connecting block (201), the fixing mechanism including a slot (3) provided on the support block (204), a block (301) that engages with the slot (3), and a sliding component that pushes the block (301) away from the slot (3). The connecting block (201) has a receiving groove (302) on the side near the protective door (105). The top of the receiving groove (302) has a limiting groove (303). The block (301) slides and connects to the inner wall of the limiting groove (303), and one side extends into the receiving groove (302). The sliding component is located inside the receiving groove (302).

3. A dust blower according to claim 2, characterized in that: The sliding assembly includes an elastic element (304), a sliding block (305), and a pressure rod (306). The sliding block (305) is disposed inside the receiving groove (302) and is slidably connected to the inner wall of the receiving groove (302). One side of the elastic element (304) is fixedly connected to the side of the receiving groove (302), and the other side of the elastic element (304) is fixedly connected to the sliding block (305). The sliding block (305) is provided with a sliding groove (307), and one side of the sliding groove (307) is inclined downward from the side of the sliding block (305) near the elastic element (304). One side of the locking block (301) is provided with a sliding post (308), and the sliding post (308) is slidably connected to the inner wall of the sliding groove (307). The pressure rod (306) is fixedly connected to the side of the sliding block (305) away from the elastic element (304), and one side of the pressure rod (306) extends to the outside of the connecting block (201).

4. A dust blower according to claim 3, characterized in that: The sliding column (308) is cylindrical in shape and is rotatably connected to the locking block (301). The side of the pressure rod (306) away from the connecting block (201) is arc-shaped.

5. A dust blower according to claim 4, characterized in that: The dust removal mechanism includes a lifting plate (4), a nozzle (401), a moving block (402), a lifting screw (403), and a first motor (404). A guide rod (405) is fixedly connected to one side of the dust removal space (102). A fixed plate (406) is fixedly connected to the side of the dust removal space (102) away from the protective door (105). One side of the lifting screw (403) is rotatably connected to the fixed plate (406), and the other side of the lifting screw (403) is rotatably connected to the bottom of the dust removal space (102). The first motor (404) is mounted on the fixed plate (405). The top of the lifting plate (406) is fixedly connected to the lifting screw (403) at the output end of the first motor (404). One side of the lifting plate (4) is threadedly connected to the lifting screw (403), and the other side of the lifting plate (4) is slidably connected to the guide rod (405). The moving block (402) is set on the top of the lifting plate (4). The nozzle (401) is set on the side of the moving block (402) and communicates with the inside of the moving block (402). The nozzle (401) faces the side of the first clamping frame (2). The side of the moving block (402) is provided with an air pipe connector (407).

6. A dust blower according to claim 5, characterized in that: The top of the lifting plate (4) is provided with a moving mechanism that causes the moving block (402) to reciprocate on the surface of the lifting plate (4). The moving mechanism includes a first pulley (408), a second pulley (409), a synchronous belt (410) connecting the first pulley (408) and the second pulley (409), and a second motor (411) that drives the first pulley (408) to rotate. Support seats (412) are fixedly connected to both sides of the top of the lifting plate (4). The first pulley (408) and the second pulley (409) are rotatably connected to the corresponding support seats (412). The output end of the second motor (411) is fixedly connected to the first pulley (408). The moving block (402) is fixedly connected to the synchronous belt (410) through a clamp (413).

7. A dust blower according to claim 6, characterized in that: Each of the two support bases (412) is fixedly connected to a number of limiting rods (414) on one side opposite to each other, and the moving block (402) is slidably connected to the limiting rods (414).

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