A dust separating device for cabinet processing

Abstract

The present application relates to the field of dust removal equipment technical field, specifically to a kind of dust separation equipment for cabinet processing, including rack, dust removal box, collecting hopper and dust collecting box, the collecting hopper upper end is fixed on rack, the collecting hopper lower end is detachably connected with dust collecting box;The dust removal box is fixed on the upper end of collecting hopper, the dust removal box is sequentially provided with air inlet channel, dust removal cavity and liquid storage cavity from left to right in it.The present application utilizes the setting of dust removal box, can carry out wood chip and shaving separation, dust removal and harmful gas absorption operation to the dust generated in the process of cabinet processing, processing effect is better, simultaneously also realized the self-cleaning of filter cloth under the condition of not stopping machine, to ensure the continuity of suction work.

Description

Technical Field

[0001] This invention relates to the technical field of dust removal equipment, specifically to a dust separation device for cabinet processing. Background Technology

[0002] During the processing of wooden cabinets, a large amount of dust and impurities are easily generated. Current processing methods often use baghouse vacuum cleaners to remove dust and impurities. These cleaners use cloth bags as the filter medium to capture and collect dust, particulate matter, and other impurities. However, after prolonged use, a large amount of dust adheres to the surface of the bags, affecting the suction effect. Current baghouse vacuum cleaners use reverse pulse air blowing into the bags to blow off the dust trapped on the surface, but this process requires stopping the negative pressure fan, affecting the continuity of suction. Furthermore, cabinet processing often involves larger debris such as sawdust and shavings. Existing baghouse vacuum cleaners are easily clogged by sawdust and shavings during dust removal, or the filter cloth is scratched or punctured, thus affecting their normal dust separation operation. Summary of the Invention

[0003] To address the problem that existing baghouse negative pressure dust collection devices require reverse pulse air blowing into the bag to blow off the dust trapped on the bag's surface, which necessitates stopping the negative pressure fan and disrupts the continuity of the suction process, this invention provides a dust separation device for cabinet processing.

[0004] The dust separation device for cabinet processing provided by this invention adopts the following technical solution:

[0005] A dust separation device for cabinet processing includes a frame, a dust collection box, a collection hopper, and a dust collection container. The upper end of the collection hopper is fixed to the frame, and the lower end of the collection hopper is detachably connected to the collection hopper.

[0006] The dust collector is fixed to the upper end of the collection hopper. From left to right, the dust collector contains an air inlet channel, a dust removal chamber, and a liquid storage chamber. The right side of the air inlet channel communicates with the dust removal chamber, and a filter plate is installed at the connection between the right side of the air inlet channel and the dust removal chamber. An air inlet pipe communicating with the left side of the air inlet channel is installed above the dust collector. A cleaning chamber is symmetrically arranged below the dust removal chamber. Both the dust removal chamber and the cleaning chamber contain horizontally arranged rotating rollers. The rotating rollers in the dust removal chamber extend into the dust collector and are connected to the first servo motor. Filter cloths are arranged between rotating rollers, passing around their outer circumferences and connected end to end. A slit is provided between the dust removal chamber and the cleaning chamber for the filter cloths to pass through. A rotating rod with a torsion spring is provided inside the cleaning chamber on the outside of the filter cloth. A cleaning plate that initially abuts against the filter cloth is fixed on the rotating rod. A dust discharge channel communicating with the collection hopper is provided at the lower end of the cleaning chamber. A connecting pipe is provided in the dust removal chamber between the filter cloths, connecting it to the lower part of the liquid storage chamber. A negative pressure fan is provided on the connecting pipe. An air outlet pipe communicating with the upper part of the liquid storage chamber is provided on the right side of the dust removal box.

[0007] During use, a negative pressure fan is activated to suck up dust and impurities generated during cabinet processing. The dust-laden air, under strong suction, enters the intake channel through the intake pipe. Due to the filter plate, the air undergoes primary filtration, separating larger wood chips or shavings to prevent them from scratching or puncturing the filter cloth and affecting dust removal efficiency. The filtered air then enters the outside of the dust removal chamber, undergoes secondary filtration through the filter cloth to remove dust, and then enters between the filter cloths and is introduced into the liquid storage chamber through a connecting pipe. Since the wood used in cabinets generally contains glue, friction during processing causes high temperatures that release harmful gases. Therefore, by storing absorbent liquid in the liquid storage chamber and introducing the dust-removed air into the absorbent liquid through the connecting pipe to mix thoroughly, the harmful gases generated during cabinet processing are absorbed. The resulting clean air is then discharged from the exhaust pipe.

[0008] By designing the slits, the dust collection chamber and the cleaning chamber are placed in a near-disconnected state, thus avoiding the problem of dispersed suction force in the air inlet pipe caused by air being drawn in through the cleaning chamber. The cleaning plate, under the action of the torsion spring and rotating rod, remains firmly pressed against the filter cloth. This allows it to scrape away dust accumulation on the filter cloth by sliding relative to it as the rotating roller drives the filter cloth, automatically cleaning any blockages. The cleaned portion then rotates back to the air inlet channel within the dust collection chamber to participate in subsequent cleaning. Continuous dust removal enables the filter cloth to self-clean without shutting down the machine, thus ensuring the continuity of the suction operation. On the other hand, the dust removal plate can also tighten the filter cloth, so that the filter cloth covered with dust will not rub against the slit when passing through it, preventing the dust from falling into the dust removal chamber. This avoids the problem of greatly increasing the probability of filter cloth blockage in the dust removal chamber, so that the dust removal process takes place in the dust removal chamber. The removed dust can be guided to the dust collection box through the dust discharge channel and collection hopper for timely discharge, so as not to affect the dust removal efficiency of the filter cloth.

[0009] Optionally, the air intake channel is further provided with a blockage removal mechanism, which includes a second servo motor, a rotating shaft, and a blockage removal head. A blockage block is detachably installed on the left side of the air intake channel. The second servo motor is installed on the outside of the blockage block, and the output end of the second servo motor is connected to the blockage removal head via the rotating shaft. The blockage removal head is a spiral-shaped cover, and the ends of the spiral-shaped cover are connected by radially extending blockage removal plates. Multiple sets of support rods connecting the inner wall of the blockage removal head and the rotating shaft are provided on the side of the blockage removal head facing the filter plate. The side of the blockage removal head away from the filter plate is connected to the rotating shaft via a guide cover, and the cross-sectional area of ​​the guide cover gradually increases from left to right. A dust removal channel connecting the air intake channel and the collection hopper is provided in the dust collection box directly below the blockage removal head.

[0010] By adopting the above technical solution and utilizing the cleaning head, the flow area near the filter plate can be reduced, thereby increasing the airflow velocity and allowing dust in the air to pass through the filter plate smoothly, achieving the purpose of separating dust from wood chips and shavings. In addition, the second servo motor can drive the support rod and the cleaning head to rotate through the shaft. Because the support rod is close to the filter plate, it can scrape off the wood chips and shavings trapped on the filter plate and allow them to enter the collection box through the waste discharge channel and collection hopper, thereby avoiding the problem of wood chips and shavings blocking the air intake channel.

[0011] Optionally, it also includes an anti-clogging filter mechanism, which includes a rotating drum body fitted around the unclogging head and rotatably engaged with the inner wall of the air inlet channel. The rotating drum body is provided with a material discharge hole matching the waste discharge channel. A second annular plate is provided on the left side of the rotating drum body, and a first annular plate is provided on the right side of the rotating drum body. The filter plate is fixed inside the first annular plate. A first annular groove and a second annular groove matching the first annular plate and the second annular plate are respectively provided in the dust collection box. A first stop bar is provided above the side of the filter plate facing the unclogging head, and a second stop bar is provided below the filter plate symmetrically arranged with the first stop bar. The filter plate is eccentrically positioned with respect to the rotating shaft, and its axis is located above the axis of the rotating shaft. The maximum distance from the rotating shaft to the spiral cover is greater than the distance from the rotating shaft to the second stop bar and less than the distance from the rotating shaft to the first stop bar.

[0012] Because the sawdust and shavings are large and numerous, a slit-like method cannot be used for transfer and removal. Therefore, the large flow area of ​​the discharge channel can easily lead to insufficient suction as air is drawn into the intake channel from the discharge channel. To address this, the rotary drum body, first annular plate, second annular plate, and discharge hole are designed to adjust the relative position of the discharge hole and discharge channel by rotating the rotary drum body. This allows the discharge hole to be positioned away from the discharge channel when not clearing blockages, with the rotary drum body blocking the discharge channel to prevent insufficient suction. Conversely, when clearing blockages is needed, the discharge hole is positioned closer to the discharge channel, allowing sawdust and shavings to enter and exit through the discharge channel, preventing blockages in the intake channel. Specifically, initially, the first stop is directly above and the second stop is directly below. When the clearing head rotates, because the maximum distance from the shaft to the spiral cover is greater than the distance from the shaft to the second stop, the second stop will block the clearing plate. As the unclogging head continues to rotate, it drives the filter plate and the rotating drum body to rotate via the second stop, thereby adjusting the position of the material discharge hole. When the second stop rotates to the top, due to the eccentric setting of the filter plate and the rotating shaft, the distance from the second stop to the rotating shaft is equivalent to the initial distance from the rotating shaft to the first stop. The maximum distance from the rotating shaft to the spiral cover is less than the initial distance from the rotating shaft to the first stop. Therefore, the unclogging head disengages from the second stop. The unclogging head then continues to rotate until it contacts the first stop below, completing a single rotation process. During this process, the rotating drum body does not rotate. That is, for every one rotation of the unclogging head, the rotating drum body can rotate half a rotation. This allows the continuous rotation of the unclogging head to control the intermittent rotation of the rotating drum body. Therefore, the time between two adjacent rotation processes can be controlled by the speed control of the second servo motor, thereby minimizing the time of insufficient suction while completing the unclogging of the air intake channel, and thus reducing the impact on dust suction.

[0013] Optionally, the upper end of the waste discharge channel is provided with a horizontally arranged transverse groove, and a sealing plate is provided in the transverse groove to block the waste discharge channel. The space between the sealing plate and the air intake channel forms a pre-storage cavity. A rack extending to the second annular groove is provided on the left side of the sealing plate. Multiple sets of first springs are provided between the front end of the rack and the front sidewall of the transverse groove. The second annular plate is provided with meshing teeth distributed in a local arc along its circumference. The meshing teeth match the rack. The meshing teeth are on the rear side of the rotation path of the discharge hole. The minimum arc of the meshing teeth to the discharge hole is greater than the arc between the two sides of the discharge hole.

[0014] By adopting the above technical solution, the pre-storage chamber allows the discharge channel to be sealed by the first spring when the discharge hole is below. This closed pre-storage chamber collects the sawdust and shavings discharged from the air channel after unblocking, preventing insufficient suction. When the drum body continues to rotate and seals the top of the pre-storage chamber, the pre-storage chamber and the air inlet channel are relatively closed. Then, the rotation of the meshing teeth drives the rack to compress the first spring, thereby opening the bottom of the pre-storage chamber. This allows the sawdust and shavings to fall and be discharged from the discharge channel. This sequential opening of the top and bottom of the pre-storage chamber ensures that the lower part of the discharge channel and the air inlet channel are never directly connected. This avoids insufficient suction time while unblocking the air inlet channel, thus preventing any impact on dust extraction.

[0015] Optionally, a settling trough is provided in the dust removal chamber directly above the dust removal plate, and a top rod is provided in the settling trough. The top rod is connected to the bottom of the settling trough by a second spring. Multiple sets of arc-shaped plates are evenly distributed on the filter plate on one side of the dust removal chamber. The distance between the arc-shaped plates and the filter plate gradually increases along the direction of rotation. The line connecting the outer side of an arc-shaped plate and the center of the filter plate passes through another adjacent arc-shaped plate.

[0016] By adopting the above technical solution, and utilizing the arrangement of the second spring, the push rod, and the arc-shaped plate, the arc-shaped plate gradually squeezes the push rod as the drum body rotates, causing the push rod to compress the second spring and retract into the settling groove. Then, when the push rod disengages from the outside of an arc-shaped plate, the second spring resets, causing the push rod to impact the next arc-shaped plate. This impact vibration further improves the cleaning of the filter plate. In addition, the arc-shaped plate can also turbulent the dust-laden gas entering the dust removal chamber through the filter plate, dispersing it in all directions. This allows the filter cloth in the dust removal chamber to participate in dust removal more fully and evenly, avoiding the problem that the filter cloth near the filter plate often clogs earlier than the filter cloth farther away from the filter plate, thus reducing the overall dust removal frequency of the filter cloth.

[0017] Optionally, the bottom of the settling tank is provided with a guide hole that connects to the cleaning chamber, and a guide rod connected to the top rod is provided in the guide hole; an inclined plate is also provided on the rotating rod, and the guide rod can squeeze the inclined plate and overcome the torsion spring force to drive the cleaning plate away from the filter cloth when it moves down.

[0018] By adopting the above technical solution and utilizing the guide rod, the guide rod can squeeze the inclined plate during the process of the top rod being compressed into the settling tank. This leverages the principle of levers to overcome the torsion spring force and drive the cleaning plate away from the filter cloth. When the top rod is reset, the reaction force of the torsion spring can drive the cleaning plate to beat the filter cloth. Therefore, the filter cloth can still be cleaned even when the first servo motor is not working, thus further improving the cleaning effect of the filter cloth.

[0019] Optionally, the lower end of the collection hopper is provided with a horizontally arranged slot, and an insert plate is provided in the slot to block the lower end of the collection hopper, with one end of the insert plate extending outside the collection hopper.

[0020] By adopting the above technical solution, when the dust collection box is full, the lower end of the collection hopper can be sealed by inserting a plate. The collection hopper can then temporarily collect dust and wood shavings, preventing the scattered dust from overflowing. The dust collection box can be removed without stopping the machine.

[0021] Optionally, the dust collection box and the lower end of the collection hopper are detachably connected by a locking assembly. The collection hopper is provided with a first partition for separating the dust discharge channel and the miscellaneous discharge channel, and the dust collection box is provided with a corresponding second partition that matches the first partition.

[0022] Since sawdust and wood shavings have some economic value, the use of the first and second partitions can separate dust from sawdust and wood shavings for collection, thus preventing dust from contaminating the sawdust and wood shavings.

[0023] In summary, the present invention has at least one of the following beneficial technical effects:

[0024] 1. By utilizing the dust collection box, it is possible to separate wood chips and shavings, remove dust, and absorb harmful gases generated during cabinet processing, achieving good treatment results. At the same time, it also enables the filter cloth to self-clean without stopping the machine, thus ensuring the continuity of the suction operation.

[0025] 2. By utilizing the unclogging mechanism and the anti-clogging filter mechanism, the time of insufficient suction power can be reduced after the air intake channel is unclogging, thereby reducing the impact on dust suction.

[0026] 3. By utilizing the pre-storage chamber, the lower part of the dust removal channel is never directly connected to the air intake channel. This avoids insufficient suction time after the air intake channel is cleared, thus preventing any impact on dust extraction.

[0027] 4. By utilizing the top rod and inclined plate, the filter plate and filter cloth can be vibrated multiple times during the rotation of the drum body, thereby achieving the purpose of clearing blockages or removing dust. Attached Figure Description

[0028] Figure 1 This is a rear-view perspective view of the present invention;

[0029] Figure 2 This is a partial three-dimensional sectional view of the front view of the present invention;

[0030] Figure 3 This is a three-dimensional exploded sectional view of the dust collection box in this invention;

[0031] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0032] Figure 5 This is a perspective view of the unblocking mechanism in this invention.

[0033] Figure 6 This is a perspective view of the unblocking mechanism in this invention from another angle;

[0034] Figure 7 This is a perspective view of the filter plate in this invention;

[0035] Figure 8 This is a perspective view of the unblocking head in this invention;

[0036] Figure 9 This is a cross-sectional view of the collecting hopper and dust collection box in this invention.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Frame; 2. Collection hopper; 21. First partition; 22. Insert plate; 3. Dust collection box; 31. Second partition; 32. Locking assembly; 4. Dust collection box; 41. Inlet pipe; 42. Outlet pipe; 43. Inlet channel; 44. Block; 45. Waste discharge channel; 46. Cleaning chamber; 47. Dust collection chamber; 48. Liquid storage chamber; 49. Connecting pipe; 5. First servo motor; 51. Rotating roller; 52. Filter cloth; 53. Slit; 54. Dust discharge channel; 55. Settling tank; 56. Guide hole; 57. First annular groove; 58. Second annular groove; 59. 6. Horizontal groove; 6. Second servo motor; 61. Rotating shaft; 62. Clearing head; 63. Clearing plate; 64. Guide cover; 65. Support rod; 7. Anti-clogging filter mechanism; 71. Rotary drum body; 72. First annular plate; 73. Filter plate; 74. Second annular plate; 75. Meshing teeth; 76. Material discharge hole; 77. Arc plate; 78. First stop rod; 79. Second stop rod; 8. Sealing plate; 81. Rack; 82. First spring; 9. Top rod; 91. Second spring; 92. Guide rod; 93. Inclined plate; 94. Rotating rod; 95. Dust removal plate. Detailed Implementation

[0039] The following is in conjunction with the appendix Figure 1 - Figure 9 The present invention will be described in further detail below.

[0040] This invention discloses a dust separation device for cabinet processing.

[0041] It should be noted that, in the description of this invention, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., 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 invention 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, they should not be construed as limitations on this invention.

[0042] Reference Figure 1 - Figure 9 A dust separation device for cabinet processing includes a frame 1, a dust collection box 4, a collection hopper 2 and a dust collection box 3. The upper end of the collection hopper 2 is fixed to the frame 1, and the lower end of the collection hopper 2 is detachably connected to the dust collection box 3.

[0043] The dust collector 4 is fixed to the upper end of the collection hopper 2. From left to right, the dust collector 4 contains an air inlet channel 43, a dust collection chamber 47, and a liquid storage chamber 48. The right side of the air inlet channel 43 communicates with the dust collection chamber 47. A filter plate 73 is installed at the connection between the right side of the air inlet channel 43 and the dust collection chamber 47. An air inlet pipe 41 communicating with the left side of the air inlet channel 43 is installed above the dust collector 4. A cleaning chamber 46 is symmetrically arranged below the dust collection chamber 47. Both the dust collection chamber 47 and the cleaning chamber 46 contain horizontally arranged rotating rollers 51. The rotating rollers 51 in the dust collection chamber 47 extend into the dust collector 4 and are connected to the first servo motor 5. The rotating rollers 51 are positioned between... A filter cloth 52 is arranged in sequence around its outer periphery and connected end to end. A slit 53 is provided between the dust removal chamber 47 and the cleaning chamber 46 for the filter cloth 52 to pass through. A rotating rod 94 with a torsion spring (not shown) is provided in the cleaning chamber 46 outside the filter cloth 52. A cleaning plate 95 that initially abuts against the filter cloth 52 is fixed on the rotating rod 94. A dust discharge channel 54 communicating with the collection hopper 2 is provided at the lower end of the cleaning chamber 46. A connecting pipe 49 is provided in the dust removal chamber 47 between the filter cloths 52, connecting it with the lower part of the liquid storage chamber 48. A negative pressure fan (not shown) is provided on the connecting pipe 49. An air outlet pipe 42 communicating with the upper part of the liquid storage chamber 48 is provided on the right side of the dust removal box 4.

[0044] In use, a negative pressure fan (not shown) is activated to suck up dust and impurities generated during cabinet processing. The dust-laden air, under strong suction, enters the air intake channel 43 through the air intake pipe 41. Due to the filter plate 73, the dust-laden air is filtered once, separating larger wood chips or shavings to prevent them from entering the dust removal chamber 47 and scratching or puncturing the filter cloth 52, thus affecting the dust removal effect. The filtered dust-laden air then enters the outside of the dust removal chamber 47, is filtered a second time by the filter cloth 52 to remove dust, and then enters between the filter cloths 52 and is introduced into the liquid storage chamber 48 through the connecting pipe 49. Since the wood boards used in cabinets generally contain glue, the friction during processing causes high temperatures that release harmful gases. Therefore, by storing absorbent liquid in the liquid storage chamber 48 and introducing the dust-removed air into the absorbent liquid through the connecting pipe 49 to mix it thoroughly, the harmful gases generated during cabinet processing can be absorbed. The resulting clean air is then discharged from the air outlet pipe 42.

[0045] By setting the slit 53, the dust removal chamber 47 and the cleaning chamber 46 are in a near-non-connected state, thus avoiding the problem of dispersed suction force of the air inlet pipe 41 caused by air being drawn through the cleaning chamber 46. By setting the cleaning plate 95, the cleaning plate 95 can always press against the filter cloth 52 under the action of the torsion spring (not shown) and the rotating rod 94. Thus, when the rotating roller 51 drives the filter cloth 52 to rotate, the relative sliding between the plate and the filter cloth 52 can scrape off the dust accumulation on the filter cloth 52, realizing the automatic cleaning of the blocked part of the filter cloth 52. The cleaned part will then rotate into the air inlet channel in the dust removal chamber 47. 43 points participate in subsequent dust removal, realizing the self-cleaning of filter cloth 52 without stopping the machine, thus ensuring the continuity of suction work; on the other hand, the dust removal plate 95 can also tighten the filter cloth 52, so that the filter cloth 52 covered with dust will not be scratched when passing through the slit 53, causing the dust to fall into the dust removal chamber 47, thus avoiding the problem of greatly increasing the probability of clogging of filter cloth 52 in dust removal chamber 47. This allows the dust removal process to occur in the dust removal chamber 46, and the removed dust can be guided to the dust collection box 3 through the dust discharge channel 54 and the collection hopper 2 for timely discharge of dust, avoiding affecting the dust removal efficiency of filter cloth 52.

[0046] Reference Figure 3 - Figure 8 As an optional technical solution, the air intake channel 43 is also equipped with a blockage removal mechanism, which includes a second servo motor 6, a rotating shaft 61, and a blockage removal head 62. A blockage block 44 is detachably installed on the left side of the air intake channel 43. The second servo motor 6 is installed on the outside of the blockage block 44. The output end of the second servo motor 6 is connected to the blockage removal head 62 through the rotating shaft 61. The blockage removal head 62 is a spiral-shaped cover, and the ends of the spiral-shaped cover are connected by radially extending blockage removal plates 63. Multiple sets of support rods 65 are provided inside the blockage removal head 62 facing the filter plate 73, connecting its inner wall and the rotating shaft 61. The side of the blockage removal head 62 away from the filter plate 73 is connected to the rotating shaft 61 through a guide cover 64. The cross-sectional area of ​​the guide cover 64 gradually increases from left to right. A dust removal box 4 directly below the blockage removal head 62 is provided with a debris discharge channel 45 that connects the air intake channel 43 and the collection hopper 2.

[0047] By adopting the above technical solution and utilizing the cleaning head 62, the flow area near the filter plate 73 can be reduced, thereby increasing the airflow velocity and allowing dust in the air to pass smoothly through the filter plate 73, achieving the purpose of separating dust from wood chips and shavings. In addition, the second servo motor 6 can drive the support rod 65 and the cleaning head 62 to rotate through the rotating shaft 61. Because the support rod 65 is close to the filter plate 73, it can scrape off the wood chips and shavings trapped on the filter plate 73 and allow them to enter the collection box through the waste discharge channel 45 and the collection hopper 2 for collection, thereby avoiding the problem of wood chips and shavings blocking the air intake channel 43.

[0048] Reference Figure 3 - Figure 8 As an optional technical solution, it also includes an anti-clogging filter mechanism 7, which includes a rotating drum body 71 fitted around the unclogging head 62 and rotatably engaged with the inner wall of the air inlet channel 43. The rotating drum body 71 is provided with a discharge hole 76 that matches the waste discharge channel 45. A second annular plate 74 is provided on the left side of the rotating drum body 71, and a first annular plate 72 is provided on the right side of the rotating drum body 71. The filter plate 73 is fixed inside the first annular plate 72. The dust collector 4 is provided with a filter plate 73 that matches the first annular plate 74. The annular plate 72 and the second annular plate 74 are matched with a first annular groove 57 and a second annular groove 58. The filter plate 73 is provided with a first stop bar 78 above the side facing the unclogging head 62. The filter plate 73 is provided with a second stop bar 79 symmetrically arranged with the first stop bar 78 below the filter plate 73. The filter plate 73 is eccentrically arranged with the rotating shaft 61 and its axis is located above the axis of the rotating shaft 61. The maximum distance from the rotating shaft 61 to the spiral cover is greater than the distance from the rotating shaft 61 to the second stop bar 79 and less than the distance from the rotating shaft 61 to the first stop bar 78.

[0049] Because the sawdust and shavings are large and numerous, they cannot be transferred and removed using a method similar to slit 53. Therefore, the flow area of ​​the waste discharge channel 45 is large, which can easily lead to insufficient suction as air is drawn into the air intake channel 43 from the waste discharge channel 45. Therefore, by setting up the rotary drum body 71, the first annular plate 72, the second annular plate 74, and the discharge hole 76, the relative position of the discharge hole 76 and the waste discharge channel 45 can be adjusted by rotating the rotary drum body 71. This allows the discharge hole 76 to be moved away from the waste discharge channel 45 when not in a blockage-clearing state, utilizing the rotary drum body... Body 71 blocks the waste discharge channel 45 to avoid insufficient suction. When clearing blockage is needed, the discharge hole 76 is brought closer to the waste discharge channel 45, allowing sawdust and shavings to enter and be discharged through the discharge hole 76, thus preventing blockage of the air intake channel 43. Specifically, initially, the first stop lever 78 is directly above and the second stop lever 79 is directly below. When the clearing head 62 rotates, because the maximum distance from the rotating shaft 61 to the spiral cover is greater than the distance from the rotating shaft 61 to the second stop lever 79, the second stop lever 79 will block the clearing process. At plate 63, the continued rotation of the unclogging head 62 can drive the filter plate 73 and the rotating drum body 71 to rotate via the second stop lever 79, thereby adjusting the position of the material discharge hole 76. When the second stop lever 79 rotates to the top, due to the eccentric setting of the filter plate 73 and the rotating shaft 61, the distance from the second stop lever 79 to the rotating shaft 61 is equivalent to the initial distance from the rotating shaft 61 to the first stop lever 78. However, the maximum distance from the rotating shaft 61 to the spiral cover is less than the initial distance from the rotating shaft 61 to the first stop lever 78. Therefore, the unclogging head 62 disengages from the second stop lever 79. The cleaning head 62 continues to rotate until it contacts the first stop bar 78 below to complete a single rotation process. During this process, the drum body 71 does not rotate. That is, the cleaning head 62 rotates one revolution while the drum body 71 can rotate half a revolution. This allows the continuous rotation of the cleaning head 62 to control the intermittent rotation of the drum body 71. Therefore, the time between two adjacent rotation processes can be controlled by the speed control of the second servo motor 6, thereby minimizing the time of insufficient suction force while completing the cleaning of the air intake channel 43, and thus reducing the impact on dust suction.

[0050] As an optional technical solution, the upper end of the waste discharge channel 45 is provided with a horizontally arranged transverse groove 59, and a sealing plate 8 is provided in the transverse groove 59 to block the waste discharge channel 45. The space between the sealing plate 8 and the air intake channel 43 forms a pre-storage cavity. A rack 81 extending to the second annular groove 58 is provided on the left side of the sealing plate 8. Multiple sets of first springs 82 are provided between the front end of the rack 81 and the front side wall of the transverse groove 59. The second annular plate 74 is provided with meshing teeth 75 distributed in a local arc along its circumference. The meshing teeth 75 match the rack 81. The meshing teeth 75 are on the rear side of the rotation path of the discharge hole 76. The minimum arc of the meshing teeth 75 to the discharge hole 76 is greater than the arc between the two sides of the discharge hole 76.

[0051] By adopting the above technical solution, the pre-storage chamber can be used to seal the discharge channel 45 by the first spring 82 pressing the sealing plate 8 when the discharge hole 76 is below. This allows the closed pre-storage chamber to collect the wood chips and shavings discharged from the air channel after unblocking, avoiding insufficient suction. When the drum body 71 continues to rotate and seals the top of the pre-storage chamber, the pre-storage chamber and the air inlet channel 43 are relatively closed. Then, the rotation of the meshing teeth 75 drives the rack 81 to compress the first spring 82, thereby opening the bottom of the pre-storage chamber. This allows the wood chips and shavings to fall and be discharged from the discharge channel 45. This achieves the sequential opening of the top and bottom of the pre-storage chamber, ensuring that the lower part of the discharge channel 45 and the air inlet channel 43 are never directly connected. This avoids insufficient suction time when the air inlet channel 43 is unblocked, thus preventing the impact on dust suction.

[0052] As an optional technical solution, a settling trough 55 is provided in the dust removal chamber 47 directly above the dust removal plate 95, and a top rod 9 is provided in the settling trough 55. The top rod 9 is connected to the bottom of the settling trough 55 by a second spring 91. Multiple sets of arc-shaped plates 77 are evenly distributed on the filter plate 73 on one side of the dust removal chamber 47. The distance between the arc-shaped plate 77 and the filter plate 73 gradually increases along the direction of rotation. The line connecting the outer side of one arc-shaped plate 77 and the center of the filter plate 73 passes through another adjacent arc-shaped plate 77.

[0053] By adopting the above technical solution, and utilizing the arrangement of the second spring 91, the push rod 9, and the arc plate 77, when the rotating drum body 71 rotates, the arc plate 77 gradually squeezes the push rod 9, thereby causing the push rod 9 to compress the second spring 91 and retract into the settling groove 55. Then, when the push rod 9 disengages from the outside of an arc plate 77, the second spring 91 resets, causing the push rod 9 to strike the next arc plate 77, thereby further improving the unclogging of the filter plate 73 through impact vibration. In addition, the arrangement of the arc plate 77 can also turbulent the dust-laden gas entering the dust removal chamber 47 through the filter plate 73, dispersing it in all directions. This allows the filter cloth 52 in the dust removal chamber 47 to participate in dust removal more fully and evenly, avoiding the problem that the filter cloth 52 near the filter plate 73 often clogs earlier than the filter cloth 52 far away from the filter plate, thus reducing the overall dust removal frequency of the filter cloth 52.

[0054] As an optional technical solution, the bottom of the settling tank 55 is provided with a guide hole 56 that communicates with the cleaning chamber 46, and a guide rod 92 connected to the top rod 9 is provided in the guide hole 56; an inclined plate 93 is also provided on the rotating rod 94, and the guide rod 92 can squeeze the inclined plate 93 when it moves down and overcome the torsion spring force to drive the cleaning plate 95 away from the filter cloth 52.

[0055] By adopting the above technical solution, and utilizing the guide rod 92, the guide rod 92 can press the inclined plate 93 during the process of the top rod 9 being compressed into the sink 55. Thus, by using the lever principle, the inclined plate 93 overcomes the torsion spring force and drives the cleaning plate 95 away from the filter cloth 52. When the top rod 9 is reset, the reaction force of the torsion spring can drive the cleaning plate 95 to beat the filter cloth 52. Therefore, the filter cloth 52 can still be cleaned even when the first servo motor 5 is not working, thus further improving the cleaning effect of the filter cloth 52.

[0056] As an optional technical solution, the lower end of the collection hopper 2 is provided with a horizontally arranged slot, and an insert plate 22 is provided in the slot to block the lower end of the collection hopper 2, with one end of the insert plate 22 extending outside the collection hopper 2.

[0057] By adopting the above technical solution, when the dust collection box 3 is full, the lower end of the collection hopper 2 can be sealed by inserting the insert plate 22, and the dust and wood shavings can be temporarily collected by the collection hopper 2, which also prevents the scattered dust from overflowing outwards. The dust collection box 3 can be removed without stopping the machine.

[0058] As an optional technical solution, the dust collection box 3 and the lower end of the collection hopper 2 are detachably connected by a locking assembly 32. The collection hopper 2 is provided with a first partition 21 for separating the dust discharge channel 54 and the impurity discharge channel 45. The dust collection box 3 is provided with a second partition 31 that matches the first partition 21.

[0059] Since wood chips and shavings have some economic value, the first partition 21 and the second partition 31 can be used to separate dust from wood chips and shavings for collection, thus preventing dust from contaminating the wood chips and shavings.

[0060] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A dust separation device for cabinet processing, characterized in that, It includes a frame (1), a dust collection box (4), a collection hopper (2) and a dust collection box (3). The upper end of the collection hopper (2) is fixed to the frame (1), and the lower end of the collection hopper (2) is detachably connected to the dust collection box (3). The dust collector (4) is fixed to the upper end of the collection hopper (2). From left to right, the dust collector (4) contains an air inlet channel (43), a dust removal chamber (47), and a liquid storage chamber (48). The right side of the air inlet channel (43) communicates with the dust removal chamber (47). A filter plate (73) is installed at the connection between the right side of the air inlet channel (43) and the dust removal chamber (47). An air inlet pipe (41) communicating with the left side of the air inlet channel (43) is installed above the dust collector (4). A cleaning chamber (46) is symmetrically arranged below the dust removal chamber (47). Both the dust removal chamber (47) and the cleaning chamber (46) contain horizontally arranged rotating rollers (51). The rotating rollers (51) in the dust removal chamber (47) extend to the dust collector (4) and are connected to the first servo motor (5). A filter cloth (52) is arranged between the rollers (51) and passes around their outer periphery in sequence and is connected end to end. A slit (53) is arranged between the dust removal chamber (47) and the cleaning chamber (46) for the filter cloth (52) to pass through. A rotating rod (94) with a torsion spring is arranged inside the cleaning chamber (46) outside the filter cloth (52). A cleaning plate (95) that initially abuts against the filter cloth (52) is fixed on the rotating rod (94). A dust discharge channel (54) communicating with the collection hopper (2) is arranged at the lower end of the cleaning chamber (46). A connecting pipe (49) communicating with the lower part of the liquid storage chamber (48) is arranged inside the dust removal chamber (47) between the filter cloths (52). A negative pressure fan is arranged on the connecting pipe (49). An air outlet pipe (42) communicating with the upper part of the liquid storage chamber (48) is arranged on the right side of the dust removal box (4). The air intake channel (43) is also equipped with a blockage clearing mechanism, which includes a second servo motor (6), a rotating shaft (61), and a blockage clearing head (62). A blockage block (44) is detachably installed on the left side of the air intake channel (43). The second servo motor (6) is installed on the outside of the blockage block (44). The output end of the second servo motor (6) is connected to the blockage clearing head (62) through the rotating shaft (61). The blockage clearing head (62) is a spiral cover, and the spiral cover extends radially from end to end. The cleaning plate (63) is connected; the cleaning head (62) is provided with multiple sets of support rods (65) connecting its inner wall and the rotating shaft (61) on the side facing the filter plate (73). The side of the cleaning head (62) away from the filter plate (73) is connected to the rotating shaft (61) through the guide cover (64). The cross-sectional area of ​​the guide cover (64) gradually increases from left to right. The dust collection box (4) directly below the cleaning head (62) is provided with a discharge channel (45) connecting the air inlet channel (43) and the collection hopper (2). It also includes an anti-clogging filter mechanism (7), which includes a rotating drum body (71) fitted around the unclogging head (62) and rotating in cooperation with the inner wall of the air inlet channel (43). The rotating drum body (71) is provided with a discharge hole (76) that matches the waste discharge channel (45). A second annular plate (74) is provided on the left side of the rotating drum body (71), and a first annular plate (72) is provided on the right side of the rotating drum body (71). The filter plate (73) is fixed inside the first annular plate (72). The dust collector (4) is provided with a filter plate that matches the first annular plate (72) and the second annular plate (74). The annular plate (74) is matched with a first annular groove (57) and a second annular groove (58). The filter plate (73) is provided with a first stop bar (78) above the side facing the unclogging head (62). The filter plate (73) is provided with a second stop bar (79) symmetrically arranged with the first stop bar (78) below it. The filter plate (73) is eccentrically arranged with the rotating shaft (61) and its axis is located above the axis of the rotating shaft (61). The maximum distance from the rotating shaft (61) to the spiral cover is greater than the distance from the rotating shaft (61) to the second stop bar (79) and less than the distance from the rotating shaft (61) to the first stop bar (78).

2. The dust separation device for cabinet processing according to claim 1, characterized in that, The upper end of the discharge channel (45) is provided with a horizontally arranged transverse groove (59), and a sealing plate (8) is provided in the transverse groove (59) to block the discharge channel (45). The space between the sealing plate (8) and the air intake channel (43) forms a pre-storage cavity. A rack (81) extending to the second annular groove (58) is provided on the left side of the sealing plate (8). Multiple sets of first springs (82) are provided between the front end of the rack (81) and the front side wall of the transverse groove (59). The second annular plate (74) is provided with meshing teeth (75) distributed in a local arc along its circumference. The meshing teeth (75) match the rack (81). The meshing teeth (75) are on the rear side of the rotation path of the discharge hole (76). The minimum arc of the meshing teeth (75) to the discharge hole (76) is greater than the arc between the two sides of the discharge hole (76).

3. The dust separation device for cabinet processing according to claim 2, characterized in that, A settling trough (55) is provided in the dust removal chamber (47) directly above the dust removal plate (95). A top rod (9) is provided in the settling trough (55). The top rod (9) is connected to the bottom of the settling trough (55) by a second spring (91). Multiple sets of arc plates (77) are evenly distributed on the filter plate (73) on one side of the dust removal chamber (47). The distance between the arc plate (77) and the filter plate (73) gradually increases along the direction of rotation. The line connecting the outer side of an arc plate (77) and the center of the filter plate (73) passes through another adjacent arc plate (77).

4. The dust separation device for cabinet processing according to claim 3, characterized in that, The bottom of the settling trough (55) is provided with a guide hole (56) that connects to the cleaning chamber (46). A guide rod (92) connected to the top rod (9) is provided in the guide hole (56). An inclined plate (93) is also provided on the rotating rod (94). The guide rod (92) can squeeze the inclined plate (93) when it moves down and overcome the torsion spring force to drive the cleaning plate (95) away from the filter cloth (52).

5. A dust separation device for cabinet processing according to any one of claims 2-4, characterized in that, The lower end of the collection hopper (2) is provided with a horizontally arranged slot, and a plug plate (22) is provided in the slot to block the lower end of the collection hopper (2). One end of the plug plate (22) extends out of the collection hopper (2).

6. A dust separation device for cabinet processing according to claim 5, characterized in that, The dust collection box (3) and the lower end of the collection hopper (2) are detachably connected by a locking assembly (32). The collection hopper (2) is provided with a first partition (21) for separating the dust discharge channel (54) and the miscellaneous discharge channel (45). The dust collection box (3) is provided with a second partition (31) that matches the first partition (21).

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