A dust removal device for composite board cutting workshop

Abstract

The present invention discloses a dust removal device for a composite board cutting workshop, which relates to the field of dust removal equipment, including a dust removal box, a negative pressure mechanism for generating negative pressure fixedly installed on the top of the dust removal box, a dust outlet hopper fixedly installed on the bottom of the dust removal box, a plurality of air inlet ducts fixedly installed at the lower front end of the dust removal box, a plurality of self-cleaning dust filter mechanisms arranged inside the dust removal box, a plurality of the self-cleaning dust filter mechanisms are installed with the same auxiliary driving mechanism at the bottom, an interception plate fixedly installed on the inner wall of the front end of the dust removal box and located at the rear of the air inlet duct and on one side, and the self-cleaning dust filter mechanism includes a filter cartridge for filtering dust in the air. The present invention can clean the dust outside the filter cartridge without consuming extra energy, avoid dust blocking the filter cartridge, and prevent dust from returning to the workshop during the cleaning process.

Description

Technical Field

[0001] The invention relates to the field of dust removal equipment, in particular to a dust removal device used in a composite plate cutting workshop. Background Art

[0002] A dust removal device is a device used to capture and remove suspended particles in the gas, also known as a dust collector or dust removal device. During the operation of the composite board cutting workshop, a large amount of sawdust is easily generated and dispersed into the air. If the dust is not removed in time, it is easy to cause safety hazards and affect the health of the workshop personnel. Usually, a dust removal device is used to filter the air and intercept the dust in the air, which is convenient for dust removal and can collect dust for centralized treatment;

[0003] The patent document with publication number "CN221385678U" discloses "a kind of workshop dust removal equipment. It includes a cabinet, an exhaust fan, a filter assembly and a dust removal assembly; an air inlet is arranged on one lateral side of the cabinet, and a dust hopper is arranged at the bottom of the cabinet; the exhaust fan is arranged on the top of the cabinet. The utility model can self-clean the filter cartridge to save the use cost". Although it has the effect of "self-cleaning the filter cartridge to save the use cost", the exhaust fan needs to be shut down and the air compressor pump needs to be started while the filter cartridge is self-cleaning. First, starting the air compressor pump increases the energy consumption. Secondly, during the recoil process of starting the air compressor pump, the dust inside the cabinet is easy to return to the workshop through the air inlet, which is not conducive to the purification of workshop air and the cleaning of dust. Summary of the invention

[0004] The main purpose of the present invention is to provide a dust removal device for a composite plate cutting workshop, which can effectively solve the technical problems raised by the background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A dust removal device for a composite board cutting workshop comprises a dust removal box, a negative pressure mechanism for generating negative pressure is fixedly installed on the top of the dust removal box, a dust outlet hopper is fixedly installed on the bottom of the dust removal box, a plurality of air inlet ducts are fixedly installed at the lower front end of the dust removal box, a plurality of self-cleaning dust filter mechanisms are arranged inside the dust removal box, a same auxiliary driving mechanism is installed at the bottom of the plurality of self-cleaning dust filter mechanisms, and an interception plate is fixedly installed on one side of the inner wall of the front end box of the dust removal box and located behind the air inlet duct;

[0007] The self-cleaning dust filtering mechanism includes a filter cartridge for filtering dust in the air. The two sides and the bottom end of the filter cartridge are movably installed with a rotating frame arranged in a "U" shape. Cleaning brushes for cleaning dust are fixedly installed on the inner walls of both sides of the rotating frame. An impeller is fixedly installed at the bottom of the rotating frame. A carrier frame is arranged at the bottom of the impeller, and the carrier frame is fixedly connected to the inner walls of the front and rear ends of the dust removal box. The shaft of the impeller is movably connected to the carrier frame through a bearing. The number of self-cleaning dust filtering mechanisms is the same as the number of air inlet ducts.

[0008] Specifically, it can prevent the filter cartridge from being blocked by dust, so that the dust in the air cannot be filtered, and avoid the dust from returning to the composite board cutting workshop along with the air.

[0009] As a further solution of the present invention, the self-cleaning dust filtering mechanism further includes an anti-detachment ring fixedly installed at the top of the filter cartridge, and the outer diameter of the anti-detachment ring is larger than the outer diameter of the filter cartridge. Outer magnets are fixedly installed in the middle of the inner walls of both sides of the rotating frame. A limiting frame is fixedly installed between the inner walls of both sides of the anti-detachment ring. An inner shaft is arranged between the bottom of the limiting frame and the filter cartridge, and the upper and lower ends of the inner shaft are movably connected to the carrier frame and the filter cartridge through bearings. Inner magnets used in cooperation with the outer magnets are fixedly installed on both sides of the inner shaft. Sealing arc plates for blocking the filter holes of the filter cartridge are fixedly installed at the front and rear ends of the inner magnets.

[0010] Specifically, it can prevent the dust after desorption from being re-adsorbed by the filter cartridge immediately.

[0011] As a further solution of the present invention, a horizontal partition for blocking dust is fixedly installed at the upper end inside the dust removal box, and the anti-detachment ring penetrates through the upper and lower ends of the horizontal partition. A plurality of vertical partitions are fixedly installed at the bottom end of the horizontal partition, and the vertical partitions are located between two adjacent self-cleaning dust filtering mechanisms.

[0012] As a further solution of the present invention, a plurality of detachable mechanisms are arranged through the front end of the horizontal partition. The detachable mechanism includes a plurality of groups of slots opened at the front end of the horizontal partition. The number of each group of slots is two. A clamping plate for fixing the anti-detachment ring is clamped inside each group of slots. A plurality of fixing bolts are installed through the upper and lower ends of the connection between the clamping plate and the horizontal partition. A fixing nut is threadedly connected to the outer ring of the fixing bolt near the bottom end. The number of detachable mechanisms is the same as the number of anti-detachment rings.

[0013] Specifically, it is convenient to replace the filter cartridge.

[0014] As a further solution of the present invention, external desorption mechanisms are installed on the outer sides of the two side frames of the rotating frame, and the external desorption mechanism includes an interception filter frame for intercepting dust, and the upper and lower ends of the interception filter frame are movably connected to the rotating frame, and a torsion spring is installed at the connection between the interception filter frame and the rotating frame. A limit plate is arranged at the top of the front end of the interception filter frame to cooperate with the torsion spring to trigger the vibration of the interception filter frame, and the limit plate is fixedly connected to the rotating frame, and a plurality of equidistant baffles are arranged below the limit plate, and the baffles are fixedly connected to the rotating frame.

[0015] Specifically, before the dust is intercepted by the filter frame, it follows the airflow upward to facilitate the enrichment of the dust that is detached from the filter cartridge but not discharged through the dust hopper, thereby preventing the dust from being re-spread in large quantities in the dust removal box.

[0016] As a further solution of the present invention, the external desorption mechanism also includes a plurality of trigger plates fixedly mounted on the inner wall of the dust removal box at the rear end and located directly behind the filter cartridge, and the height of the trigger plate is less than the distance between two adjacent baffles.

[0017] Specifically, it is convenient to desorb the dust attached to the interception filter frame, and to discharge the desorbed dust through the dust outlet hopper.

[0018] As a further solution of the present invention, the auxiliary drive mechanism includes a toothed belt, which is internally meshed with a plurality of gears, a motor is installed at the bottom of one of the gears, the output shaft of the motor is fixedly connected to the middle of the gear, and the base of the motor is fixedly connected to the inner walls of the front and rear ends of the dust removal box.

[0019] As a further solution of the present invention, the number of the gears is the same as the number of the impellers, and the shaft at the top of the gear is fixedly connected to the shaft at the bottom of the impeller.

[0020] Specifically, it is convenient to assist the impeller to rotate when the wind driving force is insufficient through the auxiliary driving mechanism.

[0021] As a further solution of the present invention, the negative pressure mechanism includes a wind collecting scoop, a fan for generating negative pressure is fixedly installed on the top of the wind collecting scoop, and a pipeline is fixedly installed on the top of the fan.

[0022] As a further solution of the present invention, side mounting ears are fixedly installed on both sides of the dust removal box near the rear end, a box door is movably installed on the front of the dust removal box through a hinge, and two locks are installed between the box door and the dust removal box and on the side away from the hinge.

[0023] Specifically, the dust removal device for the composite board cutting workshop can be conveniently installed and fixed to the installation surface through the side mounting ears and the external bolts. After the lock is opened, the box door can be conveniently opened to inspect and replace the component structure inside the dust removal box.

[0024] The beneficial effects of the present invention are:

[0025] 1. The present invention sets a self-cleaning dust filter mechanism, and guides the air in the composite board cutting workshop into the dust removal box through the air inlet duct through the negative pressure formed by the negative pressure mechanism, drives the impeller to rotate, and then uses the cleaning brush to clean the filter cartridge to avoid the attached dust. Under the premise of not requiring other energy consumption and shutting down the fan, the dust on the surface of the filter cartridge can be cleaned, and the filter cartridge can be prevented from being blocked by dust, while the energy consumption required for cleaning the dust is saved;

[0026] 2. By setting up a self-cleaning dust filter mechanism and an external desorption mechanism, while the cleaning brush is cleaning the dust, the inner magnet cooperates with the outer magnet to drive the blocking arc plate to rotate, and the filter holes near the cleaning brush are blocked, which prevents the dust detached from the filter cartridge from reattaching to the surface of the filter cartridge immediately. At the same time, the dust detached from the filter cartridge is first intercepted by the external desorption mechanism, and then desorbed for the second time, so that the dust can be discharged through the dust hopper, which is convenient for the desorption and centralized treatment of dust;

[0027] 3. By setting up a convenient disassembly mechanism, it is convenient to fix and replace the filter cartridge in the self-cleaning dust filter mechanism;

[0028] 4. By setting up an auxiliary driving mechanism, when the air flow rate and velocity at the air inlet duct are too small to drive the impeller to rotate and when the air flow rates and velocities at several air inlet ducts are different, the auxiliary driving mechanism can be used to assist the impeller to rotate when the wind driving force is insufficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall structure of a dust removal device used in a composite plate cutting workshop according to the present invention;

[0030] Figure 2 This is a schematic diagram of the internal structure of a dust removal box in a dust removal device used in a composite board cutting workshop according to the present invention;

[0031] Figure 3 The present invention is a dust removal device for a composite board cutting workshop Figure 2 A magnified view of area A in;

[0032] Figure 4 It is a structural schematic diagram of a self-cleaning dust filtering mechanism and an external desorption mechanism in a dust removal device for a composite plate cutting workshop according to the present invention;

[0033] Figure 5 The present invention is a dust removal device for a composite board cutting workshop Figure 4 A magnified view of area B in FIG.

[0034] Figure 6 A top view of the internal structure of a dust removal box in a dust removal device for a composite board cutting workshop according to the present invention;

[0035] Figure 7The present invention is a schematic structural diagram of an auxiliary driving mechanism in a dust removal device used in a composite plate cutting workshop.

[0036] In the figure:

[0037] 1. Dust removal box;

[0038] 2. Negative pressure mechanism; 21. Wind collecting bucket; 22. Fan; 23. Pipeline;

[0039] 3. Self-cleaning dust filter mechanism; 31. Filter cartridge; 32. Impeller; 33. Carrying frame; 34. Anti-slip ring; 35. Rotating frame; 36. Cleaning brush; 37. External magnet; 38. Limiting frame; 39. Inner shaft; 310. Inner magnet; 311. Arc blocking plate;

[0040] 4. Easy disassembly mechanism; 41. Card plate; 42. Slot; 43. Fixing bolt; 44. Fixing nut;

[0041] 5. External desorption mechanism; 51. Intercepting filter frame; 52. Limiting plate; 53. Baffle; 54. Trigger plate;

[0042] 6. Auxiliary drive mechanism; 61. Toothed belt; 62. Gear; 63. Motor;

[0043] 7. Dust hopper; 8. Side mounting ears; 9. Air inlet duct; 10. Box door; 11. Lock; 12. Horizontal partition; 13. Vertical partition; 14. Interceptor DETAILED DESCRIPTION

[0044] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0045] like Figure 1-Figure 7 As shown, a dust removal device for a composite board cutting workshop comprises a dust removal box 1, a negative pressure mechanism 2 for generating negative pressure is fixedly installed at the top of the dust removal box 1, a dust outlet hopper 7 is fixedly installed at the bottom of the dust removal box 1, a plurality of air inlet ducts 9 are fixedly installed at the lower front end of the dust removal box 1, a plurality of self-cleaning dust filter mechanisms 3 are arranged inside the dust removal box 1, a same auxiliary driving mechanism 6 is installed at the bottom of the plurality of self-cleaning dust filter mechanisms 3, and an interception plate 14 is fixedly installed on one side of the inner wall of the front end of the dust removal box 1 and located behind the air inlet duct 9;

[0046] The self-cleaning dust filtering mechanism 3 includes a filter cartridge 31 for filtering dust in the air. The two sides and the bottom end of the filter cartridge 31 are movably installed with a rotating frame 35 arranged in a "U" shape. Cleaning brushes 36 for cleaning dust are fixedly installed on the inner walls of both sides of the rotating frame 35. An impeller 32 is fixedly installed at the bottom of the rotating frame 35. A carrier frame 33 is arranged at the bottom of the impeller 32, and the carrier frame 33 is fixedly connected to the inner walls of the front and rear ends of the dust removal box 1. The shaft of the impeller 32 is movably connected to the carrier frame 33 through a bearing. The number of the self-cleaning dust filtering mechanisms 3 is the same as that of the air inlet ducts 9.

[0047] Specifically, after the negative pressure mechanism 2 is started, negative pressure is generated inside the dust removal box 1. The air in the composite board cutting workshop enters the inside of the dust removal box 1 under the guidance of the air inlet duct 9. Part of the air rises, and part of the air impacts the impeller 32 to drive the impeller 32 to rotate. The dust in the air is intercepted and filtered by the filter cartridge 31. The clean air enters the inside of the filter cartridge 31 and rises, and finally is discharged through the negative pressure mechanism 2. The dust adheres to the outer surface of the filter cartridge 31. When the impeller 32 rotates, it drives the rotating frame 35 to rotate synchronously, and then drives the cleaning brushes 36 to clean the dust adhering to the surface of the filter cartridge 31, preventing the dust from blocking the filter cartridge 31 and causing the dust in the air to not be filtered. After the dust is desorbed, part of it is discharged through the dust outlet hopper 7, and part of it remains in the dust removal box 1 with the newly entered air and continues to be filtered. When the air flow rate and velocity at the air inlet duct 9 are small and insufficient to drive the impeller 32 to rotate, the auxiliary driving mechanism 6 is started to drive the impeller 32 to rotate through the auxiliary driving mechanism 6, so as to achieve the purpose of cleaning and desorbing dust. At the same time, when the impeller 32 rotates, it drives part of the air and dust to flow. The air and dust flowing towards the air inlet duct 9 are intercepted and blocked by the intercepting plate 14, preventing the dust from returning to the composite board cutting workshop with the air.

[0048] The self-cleaning dust filtering mechanism 3 further includes an anti-disengagement ring 34 fixedly installed at the top of the filter cartridge 31, and the outer diameter of the anti-disengagement ring 34 is larger than that of the filter cartridge 31. Outer magnets 37 are fixedly installed in the middle of the inner walls of the two side frames of the rotating frame 35. A limiting frame 38 is fixedly installed between the inner walls of both sides of the anti-disengagement ring 34. An inner shaft 39 is arranged between the limiting frame 38 and the bottom of the filter cartridge 31, and the upper and lower ends of the inner shaft 39 are movably connected to the carrier frame 33 and the filter cartridge 31 through bearings. Inner magnets 310 used in cooperation with the outer magnets 37 are fixedly installed on both sides of the inner shaft 39. Plugging arc plates 311 for plugging the filter holes of the filter cartridge 31 are fixedly installed at the front and rear ends of the inner magnets 310.

[0049] Specifically, during the rotation of the rotating frame 35, the external magnet 37 rotates synchronously, and the attraction between the internal magnet 310 and the external magnet 37 drives the sealing arc plate 311 to rotate synchronously. After the cleaning brush 36 cleans the dust attached to the surface of the filter cartridge 31, the sealing arc plate 311 blocks the filter holes near the cleaning brush 36 to prevent the desorbed dust from being re-adsorbed by the filter cartridge 31 in the first place.

[0050] A transverse partition 12 for blocking dust is fixedly installed at the upper end of the dust removal box 1, and the anti-slip ring 34 passes through the upper and lower ends of the transverse partition 12. A plurality of vertical partitions 13 are fixedly installed at the bottom end of the transverse partition 12, and the vertical partition 13 is located between two adjacent self-cleaning dust filtering mechanisms 3.

[0051] A plurality of disassembly mechanisms 4 are provided at the front end of the diaphragm 12. The disassembly mechanisms 4 include a plurality of slots 42 arranged at the front end of the diaphragm 12. Each slot 42 has two slots. A card 41 for fixing the anti-slip ring 34 is clamped inside each slot 42. A plurality of fixing bolts 43 are installed at the upper and lower ends of the connection between the card 41 and the diaphragm 12. The outer ring of the fixing bolt 43 is threadedly connected with a fixing nut 44 near the bottom end. The number of the disassembly mechanisms 4 is the same as the number of the anti-slip ring 34.

[0052] Specifically, after removing the fixing bolt 43 and the fixing nut 44 , the clamping plate 41 can be pulled out from the slot 42 , releasing the clamping plate 41 from fixing the anti-slip ring 34 , and then the filter cartridge 31 can be taken out, so as to facilitate the replacement of the filter cartridge 31 .

[0053] External desorption mechanisms 5 are installed on the outer sides of the frames on both sides of the rotating frame 35. The external desorption mechanisms 5 include an interception filter frame 51 for intercepting dust, and the upper and lower ends of the interception filter frame 51 are movably connected to the rotating frame 35. A torsion spring is installed at the connection between the interception filter frame 51 and the rotating frame 35. A limit plate 52 is arranged at the top of the front end of the interception filter frame 51 to cooperate with the torsion spring to trigger the vibration of the interception filter frame 51. The limit plate 52 is fixedly connected to the rotating frame 35. A plurality of equidistant baffles 53 are arranged below the limit plate 52, and the baffle 53 is fixedly connected to the rotating frame 35.

[0054] Specifically, when the cleaning brush 36 cleans the dust on the surface of the filter cartridge 31, due to the blocking of the blocking arc plate 311, the desorbed dust cannot be re-adsorbed by the filter cartridge 31 in the first time. At this time, the external desorption mechanism 5 rotates synchronously with the rotating frame 35, and part of the desorbed dust passes through the two adjacent baffles 53 and is finally intercepted by the interception filter frame 51 and adheres to the surface of the interception filter frame 51. At the same time, the baffle 53 blocks the dust, which is prevented from rising with the airflow before being intercepted by the interception filter frame 51. The interception of the interception filter frame 51 facilitates the enrichment of the dust desorbed from the filter cartridge 31 but not discharged through the dust hopper 7, thereby preventing the dust from spreading in large quantities in the dust removal box 1 again.

[0055] The external desorption mechanism 5 also includes a plurality of trigger plates 54 fixedly mounted on the inner wall of the rear end of the dust removal box 1 and located directly behind the filter cartridge 31, and the height of the trigger plate 54 is less than the distance between two adjacent baffles 53;

[0056] Specifically, when the interception filter frame 51 rotates to the position where the trigger plate 54 is located, due to the obstruction of the trigger plate 54, the interception filter frame 51 rotates around the axis connected to the rotating frame 35, and the torsion spring at the connection between the interception filter frame 51 and the rotating frame 35 stores elastic potential energy. When the interception filter frame 51 passes the critical point, the torsion spring releases the elastic potential energy to drive the interception filter frame 51 to rotate in the opposite direction and reset. The interception filter frame 51 collides with the limit plate 52 and vibrates, which shakes off the dust attached to the interception filter frame 51, making it easier to desorb the dust attached to the interception filter frame 51. At the same time, since the trigger plate 54 is located away from the air inlet duct 9, the air flow rate and flow velocity are smaller than those at the air inlet duct 9, making it easier for the desorbed dust to be discharged through the dust outlet hopper 7.

[0057] The auxiliary driving mechanism 6 includes a toothed belt 61, which is internally meshed with a plurality of gears 62. A motor 63 is installed at the bottom of one of the gears 62. The output shaft of the motor 63 is fixedly connected to the middle of the gear 62, and the base of the motor 63 is fixedly connected to the inner walls of the front and rear ends of the dust removal box 1.

[0058] The number of gears 62 is the same as the number of impellers 32, and the shaft at the top of the gear 62 is fixedly connected to the shaft at the bottom of the impeller 32;

[0059] Specifically, when the air flow rate and flow velocity at the air inlet duct 9 are small and insufficient to drive the impeller 32 to rotate, at this time, the starting motor 63 drives the gear 62 connected thereto to rotate, and then cooperates with the toothed belt 61 to drive the remaining gears 62 to rotate, thereby driving the impeller 32 connected to the gear 62 to rotate. At the same time, when the air flow rates and flow velocities at several air inlet ducts 9 are different, at this time, if the motor 63 is in an unstarted state, the rotation of some impellers 32 will drive the gears 62 connected thereto to rotate, and cooperate with the toothed belt 61 to drive the remaining gears 62 to rotate, thereby driving the remaining impellers 32 to rotate, so as to facilitate the auxiliary drive mechanism 6 to assist the impeller 32 in rotating when the wind drive is insufficient.

[0060] The negative pressure mechanism 2 includes a wind collecting scoop 21, a fan 22 for generating negative pressure is fixedly installed on the top of the wind collecting scoop 21, and a pipe 23 is fixedly installed on the top of the fan 22;

[0061] Specifically, after the fan 22 is started, negative pressure is generated inside the dust removal box 1, and the air in the composite board cutting workshop enters the dust removal box 1 through the air inlet duct 9. After the dust is filtered by the self-cleaning dust filter mechanism 3, it passes through the wind collecting hopper 21 and the fan 22 in turn, and is finally discharged through the pipe 23.

[0062] Side mounting ears 8 are fixedly installed on both sides of the dust removal box 1 near the rear end, and a box door 10 is movably installed on the front of the dust removal box 1 through a hinge, and two lock buckles 11 are installed between the box door 10 and the dust removal box 1 and on the side away from the hinge;

[0063] Specifically, the side mounting ears 8 cooperate with the external bolts to facilitate the dust removal device for the composite board cutting workshop to be installed and fixed to the mounting surface. After opening the lock 11, it is convenient to open the box door 10 and inspect and replace the component structure inside the dust removal box 1.

[0064] How it works

[0065] After the negative pressure mechanism 2 is started, negative pressure is generated inside the dust removal box 1, and the air in the composite board cutting workshop enters the dust removal box 1 through the guidance of the air inlet duct 9. Part of the air rises, and part of the air hits the impeller 32, driving the impeller 32 to rotate. The dust in the air is intercepted and filtered by the filter cartridge 31, and the clean air enters the inside of the filter cartridge 31 and rises, and is finally discharged through the negative pressure mechanism 2. The dust adheres to the outer surface of the filter cartridge 31. When the impeller 32 rotates, it drives the rotating frame 35 to rotate synchronously, and then drives the cleaning brush 36 to clean the dust attached to the surface of the filter cartridge 31, so as to prevent the dust from clogging the filter cartridge 31 and causing the dust in the air to be unable to be filtered. During the rotation of the rotating frame 35, the external magnet 37 follows The inner magnet 310 and the outer magnet 37 rotate synchronously, and the attraction between them drives the arc blocking plate 311 to rotate synchronously. After the cleaning brush 36 cleans the dust attached to the surface of the filter cartridge 31, the arc blocking plate 311 blocks the filter holes near the cleaning brush 36 to prevent the desorbed dust from being re-adsorbed by the filter cartridge 31 in the first place. At this time, the outer desorption mechanism 5 rotates synchronously with the rotating frame 35, and part of the desorbed dust passes through the two adjacent baffles 53 and is finally intercepted by the interception filter frame 51 and attached to the surface of the interception filter frame 51. At the same time, the baffle 53 blocks the dust and prevents it from rising with the airflow before being intercepted by the interception filter frame 51. The dust is intercepted by the interception filter frame 51 and is easily removed from the filter cartridge 31. The dust that is not discharged through the dust hopper 7 is enriched to prevent the dust from being re-diffused in large quantities in the dust removal box 1. When the interception filter frame 51 rotates to the position where the trigger plate 54 is located, the interception filter frame 51 rotates around the axis connected to the rotating frame 35 due to the obstruction of the trigger plate 54. The torsion spring at the connection between the interception filter frame 51 and the rotating frame 35 stores elastic potential energy. When the interception filter frame 51 rotates past the critical point, the torsion spring releases the elastic potential energy to drive the interception filter frame 51 to rotate in the opposite direction and reset. The interception filter frame 51 collides with the limit plate 52 and vibrates, which shakes off the dust attached to the interception filter frame 51, making it easier to desorb the dust attached to the interception filter frame 51. At the same time, since the trigger plate 54 is far away from the air inlet duct 9 The position of the air intake duct 9 is such that the air flow rate and velocity are smaller than those at the air intake duct 9, so that the desorbed dust is discharged through the dust hopper 7, and part of the desorbed dust is discharged through the dust hopper 7, and part of it remains in the dust removal box 1 with the newly-input air to continue to be filtered. When the air flow rate and velocity at the air intake duct 9 are too small to drive the impeller 32 to rotate, the auxiliary driving mechanism 6 is started to drive the impeller 32 to rotate through the auxiliary driving mechanism 6, so as to achieve the purpose of cleaning and desorbing the dust. At the same time, when the impeller 32 rotates, part of the air and dust are driven to flow, and the air and dust flowing to the air intake duct 9 are intercepted and blocked by the interception plate 14, so as to prevent the dust from following the air back into the composite plate cutting workshop.

[0066] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A dust removal device for a composite board cutting workshop, characterized in that: It includes a dust removal box (1), at the top of the dust removal box (1), a negative pressure mechanism (2) for generating negative pressure is fixedly installed, at the bottom of the dust removal box (1), a dust outlet hopper (7) is fixedly installed, several air inlet ducts (9) are fixedly installed through the lower part of the front end of the dust removal box (1), several self-cleaning dust filtering mechanisms (3) are arranged inside the dust removal box (1), at the bottom of several self-cleaning dust filtering mechanisms (3), the same auxiliary driving mechanism (6) is installed, and on the inner wall of the front end box body of the dust removal box (1) and on one side behind the air inlet duct (9), an intercepting plate (14) is fixedly installed; The self-cleaning dust filtering mechanism (3) includes a filter cartridge (31) for filtering dust in the air. On both sides and the bottom of the filter cartridge (31), a rotating frame (35) arranged in a "U" shape is movably installed. On both inner walls of the rotating frame (35), cleaning brushes (36) for cleaning dust are fixedly installed. At the bottom of the rotating frame (35), an impeller (32) is fixedly installed. At the bottom of the impeller (32), a carrying frame (33) is arranged, and the carrying frame (33) is fixedly connected to the inner walls of the front and rear ends of the dust removal box (1). The shaft of the impeller (32) is movably connected to the carrying frame (33) through a bearing. The number of self-cleaning dust filtering mechanisms (3) is the same as the number of air inlet ducts (9); The self-cleaning dust filtering mechanism (3) further includes an anti-detachment ring (34) fixedly installed at the top of the filter cartridge (31), and the outer diameter of the anti-detachment ring (34) is larger than the outer diameter of the filter cartridge (31). Through the inner walls of the two side frames of the rotating frame (35), outer magnets (37) are fixedly installed in the middle. Between the two inner walls of the anti-detachment ring (34), a limiting frame (38) is fixedly installed. Between the limiting frame (38) and the bottom of the filter cartridge (31), an inner shaft (39) is arranged, and the upper and lower ends of the inner shaft (39) are movably connected to the carrying frame (33) and the filter cartridge (31) through bearings. On both sides of the inner shaft (39), inner magnets (310) used in cooperation with the outer magnets (37) are fixedly installed. At the front and rear ends of the inner magnets (310), blocking arc plates (311) for blocking the filter holes of the filter cartridge (31) are fixedly installed; At the upper part inside the dust removal box (1), a transverse partition plate (12) for blocking dust is fixedly installed, and the anti-detachment ring (34) penetrates through the upper and lower ends of the transverse partition plate (12). At the bottom of the transverse partition plate (12), several vertical partition plates (13) are fixedly installed, and the vertical partition plates (13) are located between two adjacent self-cleaning dust filtering mechanisms (3); Several disassembly mechanisms (4) penetrate through the front end of the transverse partition plate (12). The disassembly mechanism (4) includes several groups of slots (42) opened at the front end of the transverse partition plate (12). The number of each group of slots (42) is two. Inside each group of slots (42), a clamping plate (41) for fixing the anti-detachment ring (34) is clamped. At the upper and lower ends of the connection between the clamping plate (41) and the transverse partition plate (12), several fixing bolts (43) are installed. At the bottom of the outer ring of the fixing bolts (43), fixing nuts (44) are threadedly connected. The number of disassembly mechanisms (4) is the same as the number of anti-detachment rings (34).

2. A dust removal device for a composite board cutting workshop according to claim 1, characterized in that: External desorption mechanisms (5) are installed on the outer sides of the frame bodies on both sides of the rotating frame (35). The external desorption mechanisms (5) include an interception filter frame (51) for intercepting dust, and the upper and lower ends of the interception filter frame (51) are movably connected to the rotating frame (35). A torsion spring is installed at the connection between the interception filter frame (51) and the rotating frame (35). A limit plate (52) is arranged at the top of the front end of the interception filter frame (51) to cooperate with the torsion spring to trigger the vibration of the interception filter frame (51). The limit plate (52) is fixedly connected to the rotating frame (35). A plurality of baffles (53) arranged at equal distances are arranged below the limit plate (52). The baffles (53) are fixedly connected to the rotating frame (35).

3. A dust removal device for a composite board cutting workshop according to claim 2, characterized in that: The external desorption mechanism (5) further comprises a plurality of trigger plates (54) fixedly mounted on the inner wall of the rear end box of the dust removal box (1) and located directly behind the filter cartridge (31), and the height of the trigger plates (54) is less than the distance between two adjacent baffles (53).

4. The dust removal device for a composite board cutting workshop according to claim 1 is characterized in that: The auxiliary drive mechanism (6) comprises a toothed belt (61), the toothed belt (61) being internally meshed with a plurality of gears (62), a motor (63) being mounted at the bottom of one of the gears (62), an output shaft of the motor (63) being fixedly connected to the middle of the gear (62), and a base of the motor (63) being fixedly connected to the inner walls of the front and rear ends of the dust removal box (1).

5. The dust removal device for a composite board cutting workshop according to claim 4 is characterized in that: The number of the gears (62) is the same as the number of the impellers (32), and the shaft at the top of the gear (62) is fixedly connected to the shaft at the bottom of the impeller (32).

6. The dust removal device for a composite board cutting workshop according to claim 1, characterized in that: The negative pressure mechanism (2) comprises a wind collecting scoop (21), a fan (22) for generating negative pressure being fixedly mounted on the top of the wind collecting scoop (21), and a pipe (23) being fixedly mounted on the top of the fan (22).

7. The dust removal device for a composite board cutting workshop according to claim 1, characterized in that: Side mounting ears (8) are fixedly mounted on both sides of the dust removal box (1) near the rear end, a box door (10) is movably mounted on the front of the dust removal box (1) via a hinge, and two lock buckles (11) are mounted between the box door (10) and the dust removal box (1) on a side away from the hinge.

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