Dust filtering mechanism with self-cleaning function for paperboard processing

Abstract

The invention discloses a dust filtering mechanism with a self-cleaning function for paperboard processing, and relates to the technical field of paperboard processing dust filtering, the dust filtering mechanism comprises an adjusting unit arranged at the top of a fixing frame and used for preventing dust from overflowing, and a cleaning unit matched with the adjusting unit to regularly clean dust in a dust collecting hopper; an elastic rope used for changing the thickness of the elastic rope in cooperation with pulses is arranged at the top of the fixing frame, and a first dust collecting plate and a second dust collecting plate which are used for collecting dust are arranged in the dust collecting hopper. The fixed rod at the top of the lifting frame is matched with the slope groove of the rotating ring to convert displacement along the slope groove into circumferential rotation of the rotating ring, and the elastic ropes are synchronously tensioned along with deflection of the rotating ring, so that gaps between the adjacent elastic ropes are dynamically increased, a smooth falling channel is provided for dust, and the dust removal efficiency is improved. The first dust collecting plate and the second dust collecting plate are turned from a horizontal state to a vertical state, so that dust attached to the surfaces of the dust collecting plates falls into the bottom of the dust collecting hopper and is collected by an external collecting system.

Description

Technical Field

[0001] The invention relates to the technical field of dust filtering mechanisms for cardboard processing, in particular to a dust filtering mechanism with a self-cleaning function for cardboard processing. Background Art

[0002] During the cardboard processing process, a large amount of dust is generated due to operations such as cutting, grinding, and drilling, which lead to the breakage of cardboard fibers, material properties (cardboard itself is composed of fibers and fillers and is easily broken by friction or impact), and environmental factors (fibers are more likely to break and fly under dry conditions). These factors work together to cause dust to be continuously generated during the processing process, affecting the working environment and worker health. If the dust is not treated, it can easily cause respiratory diseases in workers, pollute the workshop environment, accelerate equipment wear, and affect product quality. Dust filtration mechanisms can effectively capture and remove suspended particles, reducing equipment maintenance costs, thereby achieving safe and sustainable cardboard production.

[0003] Traditional cardboard processing uses a self-cleaning dust filter mechanism that mostly adopts a pulse jet bag dust collector. When in use, the dust-laden gas is sucked into the dust collector through the fan, and the dust is intercepted by the outer surface of the filter cartridge, and the clean air is discharged through the filter bag. As the dust accumulates, the system triggers compressed air through the pulse controller, and instantly sprays high-pressure airflow into the filter bag through the spray pipe, causing the filter bag to expand and shake, shaking the attached dust into the dust hopper, realizing automatic cleaning. During pulse jet cleaning, the impact force of the compressed air may cause the dust in the dust hopper to be re-lifted, and the secondary flying dust will re-enter the filtration system, increasing the burden on the filter bag, filter cartridge or other filter elements, resulting in a decrease in filtration efficiency.

[0004] During the pulse jet cleaning process, the filter cartridges need to be pulsed one by one. The instantaneous impact of the compressed air during the pulse will cause the filter bag to expand violently and vibrate at a high frequency. The dust layer attached to the surface of the filter bag will therefore be peeled off on a large scale and fall into the dust hopper. The dust itself is light, fine or sticky, and is easily re-blown under the action of the airflow. When a pulse ends and the second pulse is performed, a large amount of dust will accumulate in the dust hopper. Due to the high airflow velocity inside or near the dust hopper, or improper airflow direction, the dust will be re-rolled up. The dust accumulated in the dust hopper needs to be dealt with in time to prevent the dust remaining in the dust hopper from flying again during the next pulse.

[0005] In view of the above problems, it is urgent to carry out innovative design based on the original dust filtering mechanism with self-cleaning function for cardboard processing. Summary of the Invention

[0006] The technical solution of the present invention addresses the technical problem that the existing technical solutions are too single, and provides a solution that is significantly different from the existing technology. Specifically, the purpose of the present invention is to provide a dust filtering mechanism with a self-cleaning function for cardboard processing, so as to solve the problem proposed in the above background technology that during pulse jet cleaning, the impact force of the compressed air may cause the dust in the dust hopper to be re-lifted, and the secondary flying dust will re-enter the filtration system, increasing the burden on the filter bags, filter cartridges or other filter elements, resulting in a decrease in filtration efficiency and because the pulses are applied to the filter cartridges one by one, the impact force of the next pulse will bring up the dust collected inside the dust hopper during the previous pulse.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a dust filtering mechanism with a self-cleaning function for cardboard processing, comprising a dust collector body and a dust hopper for collecting dust, a fixing frame for fixing the dust hopper, an adjustment unit arranged on the top of the fixing frame to prevent dust from overflowing, and a cleaning unit for regularly cleaning the dust inside the dust hopper in cooperation with the adjustment unit, an elastic rope for changing its thickness in cooperation with a pulse is provided on the top of the fixing frame, and a first dust collecting plate and a second dust collecting plate for collecting dust are provided inside the dust hopper.

[0008] Preferably, the adjustment unit includes a rotating shaft, a turntable, a fixed block, a lifting frame, a rotating ring, and an inclined groove. A rotating shaft is provided on the top of the fixed frame disc, and the rotating shaft passes through the fixed frame. Both ends of the rotating shaft are fixedly connected to the turntable. One side of the turntable is fixedly connected to the fixed block through a fixed shaft. The outside of the fixed block is movably connected to the lifting frame. A rotating ring is provided on the top of the lifting frame, and an inclined groove is provided at the bottom of the rotating ring to cooperate with the lifting frame for rotation.

[0009] Preferably, a sliding frame cooperating with the fixed block to slide is provided in the middle of the lifting frame, and the top and bottom of the sliding frame of the lifting frame are fixedly connected to fixed rods, and the bottom of the fixed frame is fixedly connected to a limit block for guiding the lifting frame.

[0010] Preferably, a connecting piece is provided between the rotating ring and the fixing frame, and a fixing ring is fixed inside the fixing frame.

[0011] Preferably, a motor is fixedly connected to one side of the fixing frame, an output end of the motor is fixedly connected to a rotating shaft via a belt, and a dust shaking plate is fixed to an outer wall of the rotating shaft.

[0012] Preferably, the elastic rope is evenly fixed inside the rotating ring, and the elastic rope passes through the fixed ring and the fixed frame.

[0013] Preferably, the cleaning assembly includes a cam, a sliding plate, a first rotating disk, a first dust collecting plate, a second rotating disk, a second dust collecting plate, and a second spring. The outer wall of the rotating shaft is fixedly connected to the cam, and a sliding plate is provided at the bottom of the cam. One side of the sliding plate is movably connected to the first rotating disk, and the other side of the sliding plate is movably connected to the second rotating disk. The first rotating disk is fixedly connected to the first dust collecting plate, and the second rotating disk is fixedly connected to the second dust collecting plate. Two groups of second springs are provided between the sliding plate and the fixed frame.

[0014] Preferably, one end of the second spring is fixed to the bottom of the fixing frame, and the other end of the second spring is fixed to the top of the sliding plate.

[0015] Preferably, a sliding groove cooperating with the first rotating disk is provided on one side of the sliding plate, and a sliding groove cooperating with the second rotating disk is provided on the other side of the sliding plate.

[0016] Preferably, the first dust collecting plate and the second dust collecting plate are both movably connected with buffer blocks via a first spring, and the buffer blocks are both provided with inclined surfaces for cooperating with extrusion and sliding.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The motor drives the turntable to rotate. The eccentric structure of the turntable drives the fixed block to reciprocate along the sliding frame of the lifting frame. The fixed rod at the top of the lifting frame is embedded in the inclined groove of the rotating ring. When the fixed rod moves with the lifting frame, its displacement along the inclined groove is converted into circumferential rotation of the rotating ring. Multiple sets of elastic ropes are evenly distributed inside the rotating ring. As the rotating ring deflects, the elastic ropes are synchronously tightened, dynamically increasing the gaps between adjacent elastic ropes. During the pulse injection stage, dust accumulated on the surface of the filter cartridge is stripped away by the impact of the airflow. At this time, the widened gaps between the elastic ropes provide a smooth falling channel for the dust, ensuring that it quickly falls into the dust collection hopper and avoiding secondary dust dispersal caused by airflow turbulence. A dust shaking plate is installed on the rotating shaft. When the shaft rotates, the dust shaking plate periodically stirs the elastic ropes, causing them to generate high-frequency micro-vibrations. The vibrations break up the dust layer attached to the elastic rope surface, preventing the accumulation of fine particles and forming compactions. The tension of the elastic ropes changes dynamically during the shaking process, further promoting the uniform distribution of gaps and preventing localized blockage.

[0019] 2. The cam is driven by a motor to rotate, and the cam pushes the sliding plate to move vertically downward. Two sets of slide grooves are provided on the sliding plate, which cooperate with the transmission pins of the first rotating disk and the second rotating disk respectively. When the sliding plate moves downward, the slide groove converts its linear motion into the rotational motion of the rotating disk, driving the two rotating disks to rotate 90 degrees in the opposite direction synchronously, thereby driving the first dust collecting plate and the second dust collecting plate to flip from a horizontal state to a vertical state, and the dust attached to the surfaces of the first dust collecting plate and the second dust collecting plate will fall off freely under the action of gravity and fall directly into the bottom of the dust collecting hopper and be collected by an external negative pressure collection system. When the first dust collecting plate and the second dust collecting plate are flipped into place, the buffer blocks are symmetrically arranged at the impact position, and the cooperation of the buffer blocks and the first spring can effectively avoid the wear caused by the direct collision of the first dust collecting plate and the second dust collecting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the first three-dimensional structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention.

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the dust collecting hopper of the present invention.

[0023] Figure 4 This is an expanded view of the internal structure of the adjustment component of the present invention.

[0024] Figure 5 It is a bottom view of the elastic rope of the present invention.

[0025] Figure 6 For the present invention Figure 5 A schematic enlarged diagram of the structure at point A.

[0026] Figure 7 Schematic diagram of the internal structure of the dust collecting hopper of the present invention.

[0027] Figure 8 It is a schematic diagram of the horizontal state structure of the dust collecting plate of the present invention.

[0028] Figure 9 It is a schematic structural diagram of the dust collecting plate in a vertical state according to the present invention.

[0029] Figure 10 Schematic diagram of the internal structure of the dust collecting plate of the present invention.

[0030] In the figure: 1. Dust collector body; 2. Fixed frame; 301. Rotating shaft; 302. Turntable; 303. Fixed block; 304. Lifting frame; 305. Rotating ring; 306. Elastic rope; 307. Inclined groove; 4. Fixed ring; 5. Limit block; 6. Belt; 7. Motor; 8. Dust hopper; 901. Cam; 902. Sliding plate; 903. First rotating disk; 904. First dust collecting plate; 905. Second rotating disk; 906. Second dust collecting plate; 907. First spring; 908. Buffer block; 909. Second spring; 10. Dust shaking plate; 11. Connector. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] See also Figures 1 to 10 The present invention provides a technical solution: a dust filtering mechanism with a self-cleaning function for cardboard processing, comprising a dust collector body 1 and a dust hopper 8 for collecting dust, a fixing frame 2 for fixing the dust hopper 8, an adjustment unit arranged on the top of the fixing frame 2 to prevent dust from overflowing, and a cleaning unit cooperating with the adjustment unit to regularly clean the dust inside the dust hopper 8, an elastic rope 306 is provided on the top of the fixing frame 2 for changing its thickness in accordance with pulses, and a first dust collecting plate 904 and a second dust collecting plate 906 are provided inside the dust hopper 8 for collecting dust.

[0033] In the specific implementation, the dust hopper 8 is fixed to the bottom of the dust collector body 1 by the fixing frame 2, and the top of the dust hopper 8 is provided with an adjustment unit for preventing dust overflow and a timed cleaning unit. When the dust collector body 1 performs self-cleaning work, the elastic rope 306 is dynamically adjusted to adjust the gap through the adjustment unit to quickly collect a large amount of dust shaken off by the pulse, and cooperate with the flippable first dust collecting plate 904 and second dust collecting plate 906 in the dust hopper 8 to realize efficient dust collection and timed cleaning, and prevent a large amount of dust accumulated on the top of the first dust collecting plate 904 and the second dust collecting plate 906 from flying again.

[0034] As a further implementation scheme of the present invention, the adjustment unit includes a rotating shaft 301, a turntable 302, a fixed block 303, a lifting frame 304, a rotating ring 305, and a bevel groove 307. The rotating shaft 301 is provided on the top of the disc of the fixed frame 2, and the rotating shaft 301 passes through the fixed frame 2. Both ends of the rotating shaft 301 are fixedly connected to the turntable 302. One side of the turntable 302 is fixedly connected to the fixed block 303 through a fixed shaft. The outside of the fixed block 303 is movably connected to the lifting frame 304. The top of the lifting frame 304 is provided with a rotating ring 305, and the bottom of the rotating ring 305 is provided with a bevel groove 307 for rotating with the lifting frame 304.

[0035] In a specific implementation, the turntables 302 at both ends are driven to rotate by the rotating shaft 301, and the turntables 302 drive the lifting frame 304 to reciprocate through the fixed block 303. The fixed rod at the top of the lifting frame 304 cooperates with the inclined groove 307 at the bottom of the rotating ring 305 to convert the lifting motion of the lifting frame 304 into the rotational motion of the rotating ring 305, thereby realizing dynamic adjustment of the gap of the elastic rope 306, ensuring that the gap after the pulse increases through the elastic rope 306 so that the dust quickly falls into the dust collecting hopper 8.

[0036] As a further implementation scheme of the present invention, a sliding frame is provided in the middle of the lifting frame 304 to slide with the fixed block 303, and the top and bottom of the sliding frame of the lifting frame 304 are fixedly connected to fixed rods, and the bottom of the fixed frame 2 is fixedly connected to a limit block 5 to guide the lifting frame 304.

[0037] In a specific implementation, the fixed block 303 slides back and forth in the sliding frame in the middle of the lifting frame 304, driving the lifting frame 304 to move as a whole. The fixed rods at the upper and lower ends of the lifting frame 304 cooperate with the limit blocks 5 to form a guide system, ensuring that the lifting and lowering movement of the lifting frame 304 is smooth, while limiting its movement range, providing a stable power transmission basis for the rotational movement of the rotating ring 305.

[0038] As a further embodiment of the present invention, a connector 11 is provided between the rotating ring 305 and the fixing frame 2 , and a fixing ring 4 is fixed inside the fixing frame 2 .

[0039] In a specific implementation, the rotating ring 305 is fixed to the outside of the fixed frame 2 by the connecting member 11, and the connecting member 11 is used to provide a stable support structure and a limiting structure for the rotating ring 305, so that the rotating ring 305 can realize rotational movement outside the fixed frame 2, thereby ensuring the stability and reliability of the gap adjustment of the elastic rope 306.

[0040] As a further embodiment of the present invention, a motor 7 is fixedly connected to one side of the fixing frame 2 , and an output end of the motor 7 is fixedly connected to the rotating shaft 301 through a belt 6 , and a dust shaking plate 10 is fixed to the outer wall of the rotating shaft 301 .

[0041] In the specific implementation, the driving force is provided by the motor 7, and the rotating shaft 301 is driven to rotate through the belt 6, and the dust shaking plate 10 fixed on the outer wall of the rotating shaft 301 rotates accordingly, realizing the periodic stirring of the elastic rope 306, so that the elastic rope 306 has a vibration cleaning effect, thereby preventing dust from accumulating on the surface of the elastic rope 306.

[0042] As a further embodiment of the present invention, the elastic rope 306 is evenly fixed inside the rotating ring 305, and the elastic rope 306 passes through the fixing ring 4 and the fixing frame 2.

[0043] In a specific implementation, multiple groups of elastic ropes 306 are evenly fixed inside the rotating ring 305 and pass through the fixed ring 4 and the fixed frame 2. When the rotating ring 305 rotates, the elastic ropes 306 are synchronously tightened or loosened, and the gap size between adjacent elastic ropes 306 is dynamically adjusted. The increase in the gap facilitates the rapid passage of dust into the dust collecting hopper 8 during pulse cleaning, and the reduction in the gap forms a dust barrier to prevent dust from flying again, thereby realizing the dust filtering and collection function.

[0044] As a further embodiment of the present invention, the cleaning assembly includes a cam 901, a sliding plate 902, a first rotating disk 903, a first dust collecting plate 904, a second rotating disk 905, a second dust collecting plate 906, and a second spring 909. The outer wall of the rotating shaft 301 is fixedly connected to the cam 901, and a sliding plate 902 is provided at the bottom of the cam 901. One side of the sliding plate 902 is movably connected to the first rotating disk 903, and the other side of the sliding plate 902 is movably connected to the second rotating disk 905. The first rotating disk 903 is fixedly connected to the first dust collecting plate 904, and the second rotating disk 905 is fixedly connected to the second dust collecting plate 906. Two groups of second springs 909 are provided between the sliding plate 902 and the fixed frame 2.

[0045] In the specific implementation, the cam 901 is driven to rotate by the rotating shaft 301, thereby pushing the sliding plate 902 to overcome the resistance of the second spring 909 and perform linear motion. The sliding plate 902 is converted into the synchronous reverse rotation of the first rotating disk 903 and the second rotating disk 905 through the first rotating disk 903 and the second rotating disk 905 movably connected on both sides, thereby driving the fixedly connected first dust collecting plate 904 and the second dust collecting plate 906 to achieve 90-degree flipping and unloading, completing the automatic cleaning of the dust on the dust collecting plate, and the second spring 909 provides a reset elastic force for the sliding plate 902 to restore the first dust collecting plate 904 and the second dust collecting plate 906 to a horizontal state.

[0046] As a further embodiment of the present invention, one end of the second spring 909 is fixed to the bottom of the fixing frame 2 , and the other end of the second spring 909 is fixed to the top of the sliding plate 902 .

[0047] In the specific implementation, the two ends of the second spring 909 are respectively fixed to the bottom of the fixed frame 2 and the top of the sliding plate 902. When the sliding plate 902 is pushed down by the cam 901, the second spring 909 is stretched to store energy. When the cam 901 rotates to the return stage, the second spring 909 releases the elastic potential energy to drive the sliding plate 902 to automatically reset, thereby realizing the periodic reciprocating motion of the cleaning component, ensuring that the first dust collecting plate 904 and the second dust collecting plate 906 can accurately return to the horizontal dust collecting state after flipping over and unloading.

[0048] As a further embodiment of the present invention, a sliding groove is provided on one side of the sliding plate 902 to cooperate with the rotation of the first rotating disk 903, and a sliding groove is provided on the other side of the sliding plate 902 to cooperate with the rotation of the second rotating disk 905.

[0049] In the specific implementation, through the sliding grooves symmetrically arranged on both sides of the sliding plate 902, when the sliding plate 902 is driven by the cam 901 to perform linear motion, the sliding grooves on both sides respectively cooperate with the transmission pins of the first rotating disk 903 and the second rotating disk 905, and convert the linear motion of the sliding plate 902 into the synchronous reverse rotation motion of the two first rotating disks 903 and the second rotating disk 905, thereby driving the first dust collecting plate 904 and the second dust collecting plate 906 to achieve coordinated flipping and unloading actions.

[0050] As a further embodiment of the present invention, the first dust collecting plate 904 and the second dust collecting plate 906 are both movably connected with a buffer block 908 through a first spring 907, and the buffer block 908 is provided with an inclined surface for cooperating with extrusion and sliding.

[0051] In the specific implementation, a buffer block 908 with an inclined surface is set inside the first dust collecting plate 904 and the second dust collecting plate 906, and a first spring 907 is used to realize an elastic connection. When the two dust collecting plates are flipped to the closed position, the inclined surfaces of the buffer block 908 contact and squeeze each other, causing the first spring 907 to compress and store energy, and effectively absorb the impact energy through elastic deformation, thereby realizing smooth buffering, avoiding wear caused by direct collision between the first dust collecting plate 904 and the second dust collecting plate 906, and ensuring the accurate positioning of the first dust collecting plate 904 and the second dust collecting plate 906.

[0052] Working principle: When using the dust filtering mechanism for cardboard processing, the dust-laden gas is sucked into the dust collector body 1 by the fan, and the fine dust particles are efficiently intercepted by the outer surface of the filter cartridge. The larger dust particles enter the dust hopper 8 through the gaps between the elastic ropes 306 due to their own weight and accumulate on the top of the first dust collecting plate 904 and the second dust collecting plate 906. At this time, the evenly distributed elastic ropes 306 form a physical barrier, which effectively suppresses the airflow disturbance inside the dust hopper 8 and prevents the dust from flying again.

[0053] When the dust on the surface of the filter cartridge accumulates to the set threshold, the system starts the automatic cleaning program, and the filter cartridges need to be cleaned one by one. The system triggers compressed air through the pulse controller, and instantly sprays high-pressure airflow into the filter cartridge through the blowpipe, causing the filter bag to expand and shake, and the attached dust is shaken off. After the filter cartridge is pulsed, the controller starts the motor 7, and the motor 7 drives the rotating shaft 301 to rotate through the belt 6, thereby driving the turntable 302 to rotate through the rotation of the rotating shaft 301, and then the eccentric structure of the turntable 302 drives the fixed block 303 to slide inside the movable frame inside the lifting frame 304, so that the lifting frame 304 reciprocates under the action of the limit block 5. When the fixed rod on the top of the lifting frame 304 is embedded in the inclined groove 307 opened by the rotating ring 305, due to the rotation of the connecting piece 11 The position of the dynamic ring 305 is limited, and its displacement along the inclined groove 307 will be converted into the rotational movement of the rotating ring 305, and multiple groups of elastic ropes 306 are evenly distributed inside the rotating ring 305. As the rotating ring 305 deflects, the elastic ropes 306 are synchronously tightened, so that the gaps between adjacent elastic ropes 306 are dynamically increased, which facilitates the large amount of dust shaken off by the pulse to quickly enter the dust collecting hopper 8. After the dust cleaning is completed, the rotating ring 305 is reset, and the gaps between the elastic ropes 306 are restored. The tightly arranged elastic ropes 306 effectively block the airflow and prevent the dust from being raised again. When the rotating shaft 301 rotates, it synchronously drives the dust shaking plate 10 to rotate. The dust shaking plate 10 rotates and drives the elastic ropes 306 to vibrate. The vibration can destroy the dust adhesion layer on the surface of the elastic ropes 306, thereby preventing fine particles from accumulating and forming compaction.

[0054] At the same time, when one pulse cleaning is completed and before the next pulse cleaning begins, a large amount of dust accumulates on the top of the first dust collecting plate 904 and the second dust collecting plate 906. The motor 7 is started by the controller to drive the rotating shaft 301 to rotate. The rotation of the rotating shaft 301 drives the cam 901 to which it is fixed to rotate. The cam 901 pushes the sliding plate 902 to move downward in the vertical direction in the side plate of the dust collecting hopper 8. Two sets of sliding grooves are provided on the sliding plate 902, which respectively cooperate with the transmission pins of the first rotating disk 903 and the second rotating disk 905. When the sliding plate 902 moves downward, the sliding groove converts the linear motion of the sliding plate 902 into the rotational motion of the first rotating disk 903 and the second rotating disk 905, driving the first rotating disk 903 and the second rotating disk 905 to rotate synchronously in the opposite direction by 90 degrees. When the movable disk 903 and the second rotating disk 905 rotate, the first dust collecting plate 904 and the second dust collecting plate 906 are flipped from a horizontal state to a vertical unloading state, and the dust attached to the surface of the first dust collecting plate 904 and the second dust collecting plate 906 falls off freely under the action of gravity and directly falls into the bottom of the dust collecting hopper 8 and is collected by an external negative pressure collection system, thereby realizing continuous discharge of dust. When the first dust collecting plate 904 and the second dust collecting plate 906 are flipped into place, the buffer blocks 908 are symmetrically arranged at the impact position of the first dust collecting plate 904 and the second dust collecting plate 906. When the first dust collecting plate 904 and the second dust collecting plate 906 collide, the two groups of buffer blocks 908 squeeze and compress the first spring 907 against each other, thereby effectively avoiding the wear caused by the direct collision of the first dust collecting plate 904 and the second dust collecting plate 906.

[0055] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dust filtering mechanism with a self-cleaning function for cardboard processing, comprising a dust collector body (1) and a dust collecting hopper (8) for collecting dust, characterized in that: The device further comprises a fixing frame (2) for fixing the dust collecting hopper (8), an adjusting unit arranged on the top of the fixing frame (2) for preventing dust from overflowing, and a cleaning unit cooperating with the adjusting unit to regularly clean the dust inside the dust collecting hopper (8), wherein the top of the fixing frame (2) is provided with an elastic rope (306) for changing its thickness in accordance with pulses, and the inside of the dust collecting hopper (8) is provided with a first dust collecting plate (904) and a second dust collecting plate (906) for collecting dust.

2. The dust filter mechanism with self-cleaning function for cardboard processing according to claim 1, characterized in that: The adjustment unit comprises a rotating shaft (301), a rotating disk (302), a fixed block (303), a lifting frame (304), a rotating ring (305) and an inclined groove (307). The rotating shaft (301) is provided on the top of the disk of the fixing frame (2), and the rotating shaft (301) passes through the fixing frame (2). Both ends of the rotating shaft (301) are fixedly connected to the rotating disk (302). One side of the rotating disk (302) is fixedly connected to the fixed block (303) via a fixed shaft. The outside of the fixed block (303) is movably connected to the lifting frame (304). The top of the lifting frame (304) is provided with a rotating ring (305), and the bottom of the rotating ring (305) is provided with an inclined groove (307) for rotating in cooperation with the lifting frame (304).

3. The dust filter mechanism with self-cleaning function for cardboard processing according to claim 2, characterized in that: A sliding frame that slides in cooperation with the fixed block (303) is provided in the middle of the lifting frame (304), and the top and bottom of the sliding frame of the lifting frame (304) are fixedly connected to fixed rods; A limiting block (5) for guiding the lifting frame (304) is fixedly connected to the bottom of the fixing frame (2).

4. The dust filter mechanism with self-cleaning function for cardboard processing according to claim 2, characterized in that: A connecting piece (11) is provided between the rotating ring (305) and the fixing frame (2), and a fixing ring (4) is fixed inside the fixing frame (2).

5. The dust filtering mechanism with self-cleaning function for cardboard processing according to claim 1, characterized in that: A motor (7) is fixedly connected to one side of the fixing frame (2), and an output end of the motor (7) is fixedly connected to a rotating shaft (301) via a belt (6). A dust shaking plate (10) is fixed to the outer wall of the rotating shaft (301).

6. The dust filter mechanism with self-cleaning function for cardboard processing according to claim 1, characterized in that: The elastic rope (306) is evenly fixed inside the rotating ring (305), and the elastic rope (306) passes through the fixing ring (4) and the fixing frame (2).

7. The dust filtering mechanism with self-cleaning function for cardboard processing according to claim 2, characterized in that: The cleaning assembly comprises a cam (901), a sliding plate (902), a first rotating disk (903), a first dust collecting plate (904), a second rotating disk (905), a second dust collecting plate (906), and a second spring (909); the outer wall of the rotating shaft (301) is fixedly connected to the cam (901); a sliding plate (902) is provided at the bottom of the cam (901); one side of the sliding plate (902) is movably connected to the first rotating disk (903); the other side of the sliding plate (902) is movably connected to the second rotating disk (905); the first rotating disk (903) is fixedly connected to the first dust collecting plate (904); the second rotating disk (905) is fixedly connected to the second dust collecting plate (906); and two groups of second springs (909) are provided between the sliding plate (902) and the fixed frame (2).

8. The dust filtering mechanism with self-cleaning function for cardboard processing according to claim 7, characterized in that: One end of the second spring (909) is fixed to the bottom of the fixing frame (2), and the other end of the second spring (909) is fixed to the top of the sliding plate (902).

9. The dust filtering mechanism with self-cleaning function for cardboard processing according to claim 7, characterized in that: A sliding groove is provided on one side of the sliding plate (902) for cooperating with the first rotating disk (903) for rotation, and a sliding groove is provided on the other side of the sliding plate (902) for cooperating with the second rotating disk (905) for rotation.

10. The dust filtering mechanism with self-cleaning function for cardboard processing according to claim 7, characterized in that: The first dust collecting plate (904) and the second dust collecting plate (906) are both movably connected to a buffer block (908) via a first spring (907), and the buffer block (908) is provided with an inclined surface for cooperating with extrusion and sliding.

Images