Dust separation equipment for cabinet processing

Abstract

The invention relates to the technical field of dust removal equipment, in particular to dust separation equipment for cabinet processing, which comprises a rack, a dust removal box, a collection hopper and a dust collection box, the upper end of the collection hopper is fixed on the rack, and the lower end of the collection hopper is detachably connected with the dust collection box; the dust removal box is fixed to the upper end of the collecting hopper, and an air inlet channel, a dust removal cavity and a liquid storage cavity are sequentially arranged in the dust removal box from left to right. By means of the dust removal box, dust generated in the cabinet machining process can be subjected to wood chip and wood shaving separation, dust removal and harmful gas absorption operation, the treatment effect is good, meanwhile, filter cloth self-cleaning in the non-stop state is achieved, and therefore the continuity of suction work is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of dust removal equipment, and particularly to a dust separation device for cabinet processing. Background Art

[0002] During the processing of wooden cabinets, a large amount of dust and impurities are easily generated. In the existing processing, a bag-type negative pressure dust collection device is often used for dust suction and impurity removal. The bag-type negative pressure dust collection device uses a cloth bag as a filtering medium to capture and collect dust, particulate matter, and other impurities. After long-term use, a large amount of dust adheres to the surface of the cloth bag, affecting the suction effect. The existing bag-type negative pressure dust collection device blows reverse pulses into the cloth bag to blow off the dust intercepted on the outer surface of the cloth bag for cleaning. This process requires stopping the suction work of the negative pressure fan, affecting the continuity of the suction work. In addition, during the processing of cabinets, there are often larger sundries such as wood chips and shavings. The existing bag-type negative pressure dust collection device is easily blocked by wood chips and shavings or scratches and punctures the filter cloth during dust removal, thereby affecting its normal dust separation operation. Summary of the Invention

[0003] In order to solve the problem that the existing bag-type negative pressure dust collection device needs to blow reverse pulses into the cloth bag to blow off the dust intercepted on the outer surface of the cloth bag for cleaning, resulting in the need to stop the suction work of the negative pressure fan and affecting the continuity of the suction work, the present invention provides a dust separation device for cabinet processing.

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

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

[0006] The dust removal box is fixed to the upper end of the collection hopper. An air inlet channel, a dust removal chamber and a liquid storage chamber are sequentially arranged in the dust removal box from left to right. The right side of the air inlet channel communicates with the dust removal chamber. A filter plate is arranged 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 arranged above the dust removal box. A dust cleaning chamber symmetrically arranged with the dust removal chamber is arranged directly below the dust removal chamber. Rotating rollers horizontally arranged front and back are arranged in both the dust removal chamber and the dust cleaning chamber. The rotating roller in the dust removal chamber extends to the outside of the dust removal box and is in transmission connection with a first servo motor. Filter cloths are arranged between the rotating rollers and sequentially bypass the outer circumferences of the rotating rollers and are connected end to end. A slit for the filter cloth to pass through is arranged between the dust removal chamber and the dust cleaning chamber. A rotating rod with a torsion spring is arranged outside the filter cloth in the dust cleaning chamber. A dust cleaning plate initially abutted against the filter cloth is fixedly arranged on the rotating rod. A dust discharge channel communicating with the collection hopper is arranged at the lower end of the dust cleaning chamber. A communicating pipe connecting the lower part of the dust removal chamber to the liquid storage chamber is arranged in the dust removal chamber between the filter cloths. A negative pressure fan is arranged on the communicating pipe. An air outlet pipe communicating with the upper part of the liquid storage chamber is arranged on the right side of the dust removal box.

[0007] During use, the negative pressure fan is started to suck the dust and impurities generated during the processing of the cabinet. The dust-containing air enters the air inlet channel through the air inlet pipe in turn under the action of huge suction force. Due to the setting of the filter plate, the dust-containing air can be filtered once, separating larger wood chips or shavings, and avoiding the problem that the wood chips and shavings enter the dust removal chamber and scratch or pierce the filter cloth, resulting in the influence on the dust removal effect. Then, the dust-containing air after the first filtration enters the outside of the dust removal chamber, passes through the filter cloth for secondary filtration to remove dust, enters between the filter cloths, and is introduced into the liquid storage chamber through the communicating pipe. Since the wooden board used for the cabinet generally contains glue, harmful gases are volatilized due to friction during processing. Therefore, by storing the absorption liquid in the liquid storage chamber and introducing the air after dust removal into the absorption liquid through the communicating pipe to fully mix with it, the harmful gases generated during the processing of the cabinet can be absorbed, and then the clean air obtained is discharged from the air outlet pipe.

[0008] By setting the slits, the dust removal chamber and the cleaning chamber can be in a state of being approximately non-connected, thereby avoiding the problem of dispersion of the suction force of the intake pipe caused by sucking air through the cleaning chamber; by setting the cleaning plate, the cleaning plate can always be pressed against the filter cloth under the action of the torsion spring and the rotating rod, so that on the one hand, when the rotating roller drives the filter cloth to rotate, the relative sliding between the filter cloth and the cleaning roller can be used to scrape off the dust accumulation on the filter cloth, thereby realizing automatic cleaning of the blocked part of the filter cloth, and the cleaned part will rotate to the air intake channel in the dust removal chamber to participate in the subsequent Continuous dust removal realizes self-cleaning of the filter cloth without stopping the machine, thereby ensuring the continuity of the suction work; on the other hand, the cleaning plate can also tension the filter cloth, so that the filter cloth covered with dust accumulation will not be scratched when passing through the slit, causing the dust accumulation to fall into the dust removal chamber, thereby avoiding the problem of greatly increased probability of filter cloth clogging in the dust removal chamber, so that the cleaning process takes place in the cleaning chamber, and the removed dust can be guided to the dust collecting box through the dust exhaust channel and the collection bucket for collection, and the dust is discharged in time to avoid affecting the dust removal efficiency of the filter cloth.

[0009] Optionally, a clearing mechanism is also provided in the air intake channel, and the clearing mechanism includes a second servo motor, a rotating shaft and a clearing head. A block is detachably installed on the left side of the air intake channel, the second servo motor is installed on the outside of the block, and the output end of the second servo motor is transmission-connected to the clearing head through a rotating shaft; the clearing head is a spiral cover body, and the head and tail of the spiral cover body are connected by a radially extending clearing plate; a plurality of groups of support rods connecting the inner wall and the rotating shaft are provided in the clearing head facing the filter plate, and the clearing head is connected to the rotating shaft through a guide cover on the side away from the filter plate, and the cross-sectional area of ​​the guide cover gradually increases from left to right; a debris removal channel connecting the air intake channel and the collecting bucket is provided in the dust removal box directly below the clearing head.

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

[0011] Optionally, it further includes a clogging prevention and filtering mechanism. The clogging prevention and filtering mechanism includes a rotating cylinder body sleeved outside the clogging removal head and rotatably matched with the inner wall of the air inlet channel. The rotating cylinder body is provided with material dropping holes matched with the impurity discharge channel; a second annular plate is arranged on the left side of the rotating cylinder body, and a first annular plate is arranged on the right side of the rotating cylinder body. The filter plate is fixed inside the first annular plate; a first annular groove and a second annular groove matched with the first annular plate and the second annular plate are respectively arranged in the dust removal box. A first blocking rod is arranged above the filter plate facing the clogging removal head, and a second blocking rod symmetrically arranged with the first blocking rod is arranged below the filter plate; the filter plate is eccentrically arranged with the rotating shaft and its axis is above the axis of the rotating shaft; the maximum distance from the rotating shaft to the spiral cover body is greater than the distance from the rotating shaft to the second blocking rod and less than the distance from the rotating shaft to the first blocking rod.

[0012] Since there are a large number of relatively large wood chips and shavings, it is not possible to transfer and remove them in a form similar to a slit. Therefore, the flow area of the impurity discharge channel is relatively large, which easily leads to the problem of insufficient suction due to the air inlet channel replenishing air from the impurity discharge channel. Therefore, through the setting of the rotating cylinder body, the first annular plate, the second annular plate and the material dropping holes, the relative position of the material dropping holes and the impurity discharge channel can be adjusted by rotating the rotating cylinder body. Thus, when not in the clogging removal state, the material dropping holes can be made to be far away from the impurity discharge channel, and the rotating cylinder body is used to block the impurity discharge channel to avoid the problem of insufficient suction. When clogging removal is required, the material dropping holes are made to be close to the impurity discharge channel, so that the wood chips and shavings can enter the impurity discharge channel through the material dropping holes and be discharged, avoiding the problem of blockage of the air inlet channel; specifically, initially, the first blocking rod is at the due upper position and the second blocking rod is at the due lower position. When the clogging removal head rotates, since the maximum distance from the rotating shaft to the spiral cover body is greater than the distance from the rotating shaft to the second blocking rod, the second blocking rod will block at the clogging removal plate. When the clogging removal head continues to rotate, it can drive the filter plate and the rotating cylinder body to rotate through the second blocking rod, thereby adjusting the position of the material dropping holes. When the second blocking rod rotates to the due upper position, since the filter plate is eccentrically arranged with the rotating shaft, the distance from the second blocking rod to the rotating shaft at this time is equivalent to the distance from the rotating shaft to the first blocking rod initially, and the maximum distance from the rotating shaft to the spiral cover body is less than the distance from the rotating shaft to the first blocking rod initially. Therefore, the clogging removal head is separated from the second blocking rod, and then the clogging removal head continues to rotate until it contacts the first blocking rod below to complete a single rotation process. During this process, the rotating cylinder body does not rotate, that is, when the clogging removal head rotates one week, the rotating cylinder body can rotate half a week, realizing the intermittent rotation of the rotating cylinder body controlled by the continuous rotation of the clogging removal head. Therefore, by controlling the rotation speed of the second servo motor, the time of adjacent two rotation processes can be realized, so as to reduce the time of insufficient suction as much as possible under the condition of completing the clogging removal of the air inlet channel, and further reduce the influence on the dust suction work.

[0013] Optionally, a horizontal groove is arranged at the upper end of the impurity removal channel in the front-back horizontal direction. A sealing plate for blocking the impurity removal channel is arranged in the horizontal groove. The space between the upper part of the sealing plate and the air inlet channel forms a pre-storage cavity. A rack extending to the second annular groove is arranged on the left side of the sealing plate. A plurality of first springs are arranged between the front end of the rack and the front side wall of the horizontal groove. Meshing teeth are arranged on the second annular plate in a partial arc distribution along its circumference. The meshing teeth are matched with the rack. The meshing teeth are on the rear side of the rotation path of the blanking hole, and the minimum radian from the meshing teeth to the blanking hole is greater than the radian between both sides of the blanking hole.

[0014] By adopting the above technical solution, with the arrangement of the pre-storage cavity, when the blanking hole is at the lower part, the sealing plate can be squeezed by the first spring to block the impurity removal channel, so as to collect the sawdust and shavings discharged from the air channel during clogging removal by using the closed pre-storage cavity, avoiding the problem of insufficient suction; when the rotating cylinder body continues to rotate and seals the upper part of the pre-storage cavity, the pre-storage cavity is relatively closed with the air inlet channel. Then, the rotation of the meshing teeth drives the rack to compress the first spring and move, and then the lower part of the pre-storage cavity is opened, so that the sawdust and shavings can fall and be discharged from the impurity removal channel, that is, the upper and lower parts of the pre-storage cavity are opened in sequence, so that the lower part of the impurity removal channel and the air inlet channel are not directly connected all the time, and the time of insufficient suction can be avoided when the air inlet channel is unclogged, thus avoiding the influence on the dust suction work.

[0015] Optionally, a sunken groove is arranged in the dust removal cavity directly above the dust cleaning plate. A ejector rod is arranged in the sunken groove. The ejector rod is connected with the bottom of the sunken groove through a second spring. A plurality of arc-shaped plates are evenly distributed on the filter plate on one side of the dust removal cavity. The distance between the arc-shaped plates and the filter plate gradually increases along the rotation direction. The connection line between the outer side of one arc-shaped plate and the center of the filter plate passes through the adjacent another arc-shaped plate.

[0016] By adopting the above technical solution, with the arrangement of the second spring, the ejector rod and the arc-shaped plates, when the rotating cylinder body rotates, the arc-shaped plates gradually squeeze the ejector rod, so that the ejector rod compresses the second spring and retracts into the sunken groove. Then, when the ejector rod disengages from the outer side of one arc-shaped plate, the second spring resets and drives the ejector rod to impact the next arc-shaped plate, so as to further improve the clogging removal of the filter plate through the impact vibration; in addition, the arrangement of the arc-shaped plates can also disturb the dust-containing gas entering the dust removal cavity through the filter plate, making it disperse around, so that the filter cloth in the dust removal cavity can participate in dust removal more fully and evenly, avoiding the problem that the filter cloth near the filter plate is often blocked earlier than the filter cloth far from the filter plate, and reducing the dust cleaning frequency of the filter cloth as a whole.

[0017] Optionally, a guiding hole communicating with the dust cleaning chamber is arranged at the bottom of the sinking groove, and a guiding rod connected to the ejector rod is arranged in the guiding hole; an inclined plate is further arranged on the rotating rod, and the guiding rod can extrude the inclined plate when moving downward and drive the dust cleaning plate away from the filter cloth by overcoming the elastic force of the torsion spring.

[0018] By adopting the above technical solution, with the arrangement of the guiding rod, the inclined plate can be extruded by the guiding rod during the process that the ejector rod is compressed into the sinking groove, so that the dust cleaning plate can be driven away from the filter cloth by overcoming the elastic force of the torsion spring through the inclined plate by using the lever principle. When the ejector rod resets, the reaction force of the torsion spring can drive the dust cleaning plate to beat the filter cloth. Therefore, the filter cloth can still be cleaned when the first servo motor does not work, and thus the dust cleaning effect on the filter cloth is further improved.

[0019] Optionally, a horizontally arranged slot is arranged at the lower end of the collecting hopper, an inserting plate for blocking the lower end of the collecting hopper is arranged in the slot, and one end of the inserting plate extends outside the collecting hopper.

[0020] By adopting the above technical solution, when the dust collecting box is full, the lower end of the collecting hopper can be blocked by inserting the inserting plate, and the collecting hopper can be used to temporarily collect dust and wood shavings, and it can also prevent the scattered dust from overflowing outward. The dust collecting box can be removed without stopping the machine.

[0021] Optionally, the dust collecting box and the lower end of the collecting hopper are detachably connected through a buckle assembly. A first partition for separating the dust discharging channel and the impurity discharging channel is arranged in the collecting hopper, and a second partition matching with the first partition is correspondingly arranged in the dust collecting box.

[0022] Since the wood chips and wood shavings still have certain economic value, with the arrangement of the first partition and the second partition, the dust can be separated from the wood chips and wood shavings for collection, and the dust pollution of the wood chips and wood shavings can be avoided.

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

[0024] 1. With the arrangement of the dust removal box, the dust generated during the cabinet processing process can be separated from wood chips and wood shavings, dust removed and harmful gases absorbed. The treatment effect is good, and at the same time, the self-cleaning of the filter cloth is realized under the non-stop state, thus ensuring the continuity of the suction work.

[0025] 2. By using the blockage clearing mechanism and the anti-blocking filtering mechanism, the time of insufficient suction can be reduced when the air intake channel is cleared, and thus the influence on the dust suction work can be reduced.

[0026] 3. With the arrangement of the pre-storage cavity, the lower part of the impurity discharging channel and the air intake channel are not directly connected all the time, and the time of insufficient suction can be avoided when the air intake channel is cleared, and thus the influence on the dust suction work can be avoided.

[0027] 4. By setting the ejector rod and the inclined plate, during the rotation of the rotary drum body, the filter plate and the filter cloth can be vibrated multiple times, thereby achieving the purpose of clogging or dust cleaning. Description of the Drawings

[0028] Figure 1 It is a perspective view of the rear view direction of the present invention;

[0029] Figure 2 It is a partial perspective cross-sectional view of the front view direction of the present invention;

[0030] Figure 3 It is a perspective exploded cross-sectional view at the dust removal box of the present invention;

[0031] Figure 4 It is Figure 3 The partial enlarged view at A in

[0032] Figure 5 It is a perspective view of one angle at the clogging clearing mechanism of the present invention;

[0033] Figure 6 It is a perspective view of another angle at the clogging clearing mechanism of the present invention;

[0034] Figure 7 It is a perspective view at the filter plate of the present invention;

[0035] Figure 8 It is a perspective view of the clogging clearing head of the present invention;

[0036] Figure 9 It is a cross-sectional view at the collection hopper and the dust collection box of the present invention.

[0037] Description of the Reference Numerals:

[0038] 1. Frame; 2. Collection hopper; 21. First partition board; 22. Plug board; 3. Dust collection box; 31. Second partition board; 32. Locking component; 4. Dust removal box; 41. Air inlet pipe; 42. Air outlet pipe; 43. Air inlet channel; 44. Plug block; 45. Impurity discharge channel; 46. Dust cleaning cavity; 47. Dust removal cavity; 48. Liquid storage cavity; 49. Connecting pipe; 5. First servo motor; 51. Rotating roller; 52. Filter cloth; 53. Slit; 54. Dust discharge channel; 55. Sinking groove; 56. Guide hole; 57. First annular groove; 58. Second annular groove; 59. Horizontal groove; 6. Second servo motor; 61. Rotating shaft; 62. Block clearing head; 63. Block clearing board; 64. Guide cover; 65. Support rod; 7. Anti-blocking filtering mechanism; 71. Rotating cylinder body; 72. First annular plate; 73. Filter plate; 74. Second annular plate; 75. Meshing teeth; 76. Material dropping hole; 77. Arc plate; 78. First stop rod; 79. Second stop rod; 8. Sealing plate; 81. Rack; 82. First spring; 9. Thrust rod; 91. Second spring; 92. Guide rod; 93. Inclined plate; 94. Rotating rod; 95. Dust cleaning plate. Detailed implementation manner

[0039] The following is further described in detail in conjunction with the attached Figure 1 - Figure 9 This invention is further described in detail.

[0040] An embodiment of the present invention discloses a dust separation device for cabinet processing.

[0041] It should be noted that in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

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

[0043] The dust removal box 4 is fixed to the upper end of the collection hopper 2. Inside the dust removal box 4, an air inlet passage 43, a dust removal chamber 47, and a liquid storage chamber 48 are arranged in sequence from left to right. The right side of the air inlet passage 43 communicates with the dust removal chamber 47. A filter plate 73 is provided at the connection between the right side of the air inlet passage 43 and the dust removal chamber 47. An air inlet pipe 41 communicating with the left side of the air inlet passage 43 is provided above the dust removal box 4. A dust cleaning chamber 46 symmetrically arranged with the dust removal chamber 47 is provided directly below the dust removal chamber 47. Rotating rollers 51 arranged horizontally in the front and back directions are provided in both the dust removal chamber 47 and the dust cleaning chamber 46. The rotating roller 51 in the dust removal chamber 47 extends to the outside of the dust removal box 4 and is connected to the first servo motor 5. Filter cloths 52 are arranged between the rotating rollers 51 and are sequentially wound around the outer circumferences of the rotating rollers 51 and connected end to end. A slit 53 for the filter cloth 52 to pass through is provided between the dust removal chamber 47 and the dust cleaning chamber 46. A rotating rod 94 with a torsion spring (not shown) is provided outside the filter cloth 52 in the dust cleaning chamber 46. A dust cleaning plate 95 that initially abuts against the filter cloth 52 is fixedly provided on the rotating rod 94. A dust discharge passage 54 communicating with the collection hopper 2 is provided at the lower end of the dust cleaning chamber 46. A communicating pipe 49 connecting the dust removal chamber 47 between the filter cloths 52 and the lower part of the liquid storage chamber 48 is provided in the dust removal chamber 47. A negative pressure fan (not shown) is provided on the communicating 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] During use, the negative pressure fan (not shown) is started to suck the dust and impurities generated during the processing of the cabinet. The dust-containing air enters the air inlet passage 43 through the air inlet pipe 41 in turn under the action of a huge suction force. Due to the setting of the filter plate 73, the dust-containing air can be filtered once, separating larger wood chips or shavings, and avoiding the problem that the wood chips and shavings enter the dust removal chamber 47 and scratch or pierce the filter cloth 52, resulting in the influence on the dust removal effect. Then, the dust-containing air after the first filtration enters the outside of the dust removal chamber 47, is filtered again by the filter cloth 52 to remove dust, enters between the filter cloths 52, and is introduced into the liquid storage chamber 48 through the communicating pipe 49. Since the wooden board used for the cabinet generally contains glue, harmful gases are volatilized due to friction during processing. Therefore, by storing an absorption liquid in the liquid storage chamber 48 and introducing the dust-removed air into the absorption liquid through the communicating pipe 49 to fully mix with it, the harmful gases generated during the processing of the cabinet can be absorbed, and then the clean air obtained is discharged from the air outlet pipe 42.

[0045] Through the arrangement of the slit 53, the dust removal chamber 47 and the dust cleaning chamber 46 can be in an approximately non-connected state, thereby avoiding the problem of the suction force of the intake pipe 41 being dispersed due to the suction of air through the dust cleaning chamber 46; through the arrangement of the dust cleaning plate 95, the dust cleaning plate 95 can always be tightly pressed against the filter cloth 52 under the action of a torsion spring (not shown) and the rotating rod 94. Thus, on the one hand, when the rotating roller 51 drives the filter cloth 52 to rotate, the dust agglomerates on the filter cloth 52 can be scraped off by using the relative sliding with the filter cloth 52, realizing the automatic cleaning of the blocked part of the filter cloth 52. And the cleaned part will then rotate to the intake passage 43 in the dust removal chamber 47 to participate in subsequent dust removal, realizing the self-cleaning of the filter cloth 52 in the non-stop state, thereby ensuring the continuity of the suction work; on the other hand, the dust cleaning plate 95 can also tension the filter cloth 52, so that the filter cloth 52 covered with dust agglomerates will not be scratched when passing through the slit 53, resulting in the dust agglomerates falling into the dust removal chamber 47, thus avoiding the problem of a significant increase in the probability of blockage of the filter cloth 52 in the dust removal chamber 47. The dust cleaning process occurs in the dust cleaning chamber 46, and the removed dust can be guided to the dust collection box 3 for collection through the dust discharge passage 54 and the collection hopper 2, and the dust is discharged in time to avoid affecting the dust removal efficiency of the filter cloth 52.

[0046] Referring to Figure 3 - Figure 8 , as an optional technical solution, a blockage clearing mechanism is further arranged in the intake passage 43. The blockage clearing mechanism includes a second servo motor 6, a rotating shaft 61 and a blockage clearing head 62. A block 44 is detachably installed on the left side of the intake passage 43. The second servo motor 6 is installed on the outside of the block 44. The output end of the second servo motor 6 is in transmission connection with the blockage clearing head 62 through the rotating shaft 61; the blockage clearing head 62 is a spiral cover body, and the head and tail of the spiral cover body are connected by a radially extending blockage clearing plate 63; a plurality of support rods 65 connecting its inner wall and the rotating shaft 61 are arranged on one side of the blockage clearing head 62 facing the filter plate 73. The blockage clearing head 62 is connected to the rotating shaft 61 through a guiding cover 64 on the side away from the filter plate 73, and the cross-sectional area of the guiding cover 64 gradually increases from left to right; a waste discharge passage 45 communicating the intake passage 43 and the collection hopper 2 is arranged in the dust removal box 4 directly below the blockage clearing head 62.

[0047] By adopting the above technical solution, with the arrangement of the blockage clearing head 62, the flow area near the filter plate 73 can be reduced, thereby increasing the flow velocity of the air flow, enabling the dust in the air to smoothly pass through the filter plate 73, and achieving the purpose of separating the dust from the wood chips and shavings; in addition, the second servo motor 6 can drive the support rods 65 and the blockage clearing head 62 to rotate through the rotating shaft 61. Since the support rods 65 are close to the filter plate 73, the support rods 65 can scrape off the wood chips and shavings intercepted on the filter plate 73 and make them enter the collection box for collection through the waste discharge passage 45 and the collection hopper 2, thus avoiding the problem of the intake passage 43 being blocked by the wood chips and shavings.

[0048] Reference Figure 3 - Figure 8 Figure 8 , as an alternative technical solution, it further includes an anti-blocking filtering mechanism 7. The anti-blocking filtering mechanism 7 includes a rotating cylinder body 71 sleeved outside the cleaning plug 62 and rotatably matched with the inner wall of the air inlet passage 43. A blanking hole 76 matching the impurity discharge passage 45 is provided on the rotating cylinder body 71. A second annular plate 74 is provided on the left side of the rotating cylinder body 71, and a first annular plate 72 is provided on the right side of the rotating cylinder body 71. The filter plate 73 is fixed to the inner side of the first annular plate 72. A first annular groove 57 and a second annular groove 58 matching the first annular plate 72 and the second annular plate 74 are respectively provided in the dust removal box 4. A first stop rod 78 is provided above the side of the filter plate 73 facing the cleaning plug 62, and a second stop rod 79 symmetrically arranged with the first stop rod 78 is provided below the filter plate 73. The filter plate 73 is eccentrically arranged with respect to the rotating shaft 61 and its axis is above the axis of the rotating shaft 61. The maximum distance from the rotating shaft 61 to the spiral cover body is greater than the distance from the rotating shaft 61 to the second stop rod 79 and less than the distance from the rotating shaft 61 to the first stop rod 78.

[0049] Since there are a large number of relatively large wood chips and shavings, it is not possible to transfer and remove them in a form similar to the slit 53. Therefore, the flow area of the impurity discharge channel 45 is relatively large, which easily leads to the problem that the air intake channel 43 replenishes air from the impurity discharge channel 45 and the suction force is insufficient. Therefore, through the settings of the rotary drum body 71, the first annular plate 72, the second annular plate 74, and the material discharge hole 76, by rotating the rotary drum body 71, the relative position between the material discharge hole 76 and the impurity discharge channel 45 can be adjusted. Thus, when in a non-clogging state, the material discharge hole 76 can be kept away from the impurity discharge channel 45, and the rotary drum body 71 is used to block the impurity discharge channel 45 to avoid the problem of insufficient suction force. When clogging removal is required, the material discharge hole 76 is brought closer to the impurity discharge channel 45, so that the wood chips and shavings can enter the impurity discharge channel 45 through the material discharge hole 76 and be discharged, avoiding the problem of blockage of the air intake channel 43. Specifically, initially, the first stop lever 78 is at the due upper position, and the second stop lever 79 is at the due lower position. When the clogging removal head 62 rotates, since the maximum distance from the rotating shaft 61 to the spiral cover body is greater than the distance from the rotating shaft 61 to the second stop lever 79, the second stop lever 79 will block at the clogging removal plate 63. When the clogging removal head 62 continues to rotate, it can drive the filter plate 73 and the rotary drum body 71 to rotate through the second stop lever 79, thereby adjusting the position of the material discharge hole 76. When the second stop lever 79 rotates to the due upper position, since the filter plate 73 is eccentrically arranged with the rotating shaft 61, the distance from the second stop lever 79 to the rotating shaft 61 at this time is equivalent to the distance from the rotating shaft 61 to the first stop lever 78 initially. And the maximum distance from the rotating shaft 61 to the spiral cover body is less than the distance from the rotating shaft 61 to the first stop lever 78 initially. Therefore, the clogging removal head 62 is separated from the second stop lever 79, and then the clogging removal head 62 continues to rotate until it contacts the lower first stop lever 78 to complete a single rotation process. During this process, the rotary drum body 71 does not rotate, that is, when the clogging removal head 62 rotates one week, the rotary drum body 71 can rotate half a week, realizing the intermittent rotation of the rotary drum body 71 controlled by the continuous rotation of the clogging removal head 62. Therefore, by controlling the rotation speed of the second servo motor 6, the time of adjacent two rotation processes can be realized, so as to reduce the time of insufficient suction force as much as possible when the air intake channel 43 is cleared of blockage, and further reduce the impact on the dust suction work.

[0050] As an optional technical solution, a horizontal groove 59 arranged horizontally front and back is provided at the upper end of the impurity discharge channel 45. A sealing plate 8 for blocking the impurity discharge channel 45 is arranged in the horizontal groove 59. The space between the sealing plate 8 and the air intake channel 43 above forms a pre-storage cavity. A rack 81 extending to the second annular groove 58 is arranged on the left side of the sealing plate 8. A plurality of groups of first springs 82 are arranged between the front end of the rack 81 and the front side wall of the horizontal groove 59. Meshing teeth 75 are arranged on the second annular plate 74 in a partial arc distribution along its circumference. The meshing teeth 75 are matched with the rack 81. The meshing teeth 75 are at the rear side of the rotation path of the material discharge hole 76, and the minimum radian from the meshing teeth 75 to the material discharge hole 76 is greater than the radian between both sides of the material discharge hole 76.

[0051] By adopting the above technical solution, with the provision of the pre-storage cavity, when the blanking hole 76 is at the lower position, the sealing plate 8 can be squeezed by the first spring 82 to seal the impurity discharge channel 45, so that the sawdust and shavings discharged from the air channel clogging can be collected by the closed pre-storage cavity, avoiding the problem of insufficient suction; when the rotary drum body 71 continues to rotate and seals the upper part of the pre-storage cavity, the pre-storage cavity is relatively closed with the air inlet channel 43, and then the rotation of the meshing teeth 75 drives the rack 81 to compress the first spring 82 to move, and then the lower part of the pre-storage cavity is opened, so that the sawdust and shavings can fall and be discharged from the impurity discharge channel 45, that is, the upper and lower parts of the pre-storage cavity are sequentially opened, so that the lower part of the impurity discharge channel 45 is not directly communicated with the air inlet channel 43 all the time, and the time of insufficient suction can be avoided when the air inlet channel 43 is cleared of blockage, thus avoiding the influence on the dust suction work.

[0052] As an optional technical solution, a sink 55 is provided in the dust removal cavity 47 directly above the dust cleaning plate 95, a ejector rod 9 is provided in the sink 55, and the ejector rod 9 is connected to the bottom of the sink 55 through a second spring 91; a plurality of arc plates 77 are evenly distributed on the filter plate 73 on one side of the dust removal cavity 47, and the distance between the arc plates 77 and the filter plate 73 gradually increases along the spiral direction; the connection line between the outer side of one arc plate 77 and the center of the filter plate 73 passes through the adjacent another arc plate 77.

[0053] By adopting the above technical solution, with the provision of the second spring 91, the ejector rod 9 and the arc plates 77, when the rotary drum body 71 rotates, the arc plates 77 can gradually squeeze the ejector rod 9, so that the ejector rod 9 compresses the second spring 91 and retracts into the sink 55, and then when the ejector rod 9 disengages from the outer side of one arc plate 77, the second spring 91 resets and drives the ejector rod 9 to impact the next arc plate 77, so as to further improve the cleaning of the filter plate 73 through the impact vibration; in addition, the provision of the arc plates 77 can also disturb the dust-containing gas entering the dust removal cavity 47 through the filter plate 73, making it disperse around, so that the filter cloth 52 in the dust removal cavity 47 can participate in dust removal more fully and evenly, avoiding the problem that the filter cloth 52 near the filter plate 73 is often blocked earlier than the filter cloth 52 far from the filter plate, and reducing the dust cleaning frequency of the filter cloth 52 as a whole.

[0054] As an optional technical solution, a guide hole 56 communicating with the dust cleaning cavity 46 is provided at the bottom of the sink 55, and a guide rod 92 connected to the ejector rod 9 is provided in the guide hole 56; a slant plate 93 is also provided on the rotating rod 94, and the guide rod 92 can squeeze the slant plate 93 when moving downward and drive the dust cleaning plate 95 to move away from the filter cloth 52 against the elastic force of the torsion spring.

[0055] By adopting the above technical solution, with the arrangement of the guide rod 92, during the process of the ejector rod 9 being compressed into the sunk groove 55, the guide rod 92 can squeeze the inclined plate 93, so that by using the lever principle, the inclined plate 93 can overcome the elastic force of the torsion spring to drive the dust cleaning plate 95 away from the filter cloth 52. When the ejector rod 9 resets, the reaction force of the torsion spring can drive the dust cleaning plate 95 to beat the filter cloth 52. Therefore, even when the first servo motor 5 is not working, the filter cloth 52 can still be cleaned, thus further improving the dust cleaning effect on the filter cloth 52.

[0056] As an alternative technical solution, a horizontally arranged slot is provided at the lower end of the collection hopper 2, and a plug board 22 for blocking the lower end of the collection hopper 2 is arranged in the slot, and one end of the plug board 22 extends 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 blocked by inserting the plug board 22, and the collection hopper 2 can be used to temporarily collect dust and wood shavings, and it can also prevent the scattered dust from overflowing outward. The dust collection box 3 can be removed without stopping the machine.

[0058] As an alternative technical solution, the dust collection box 3 and the lower end of the collection hopper 2 are detachably connected through a buckle assembly 32. A first partition plate 21 for separating the dust discharge channel 54 and the impurity discharge channel 45 is arranged in the collection hopper 2, and a second partition plate 31 matching the first partition plate 21 is correspondingly arranged in the dust collection box 3.

[0059] Since the wood chips and wood shavings still have a certain economic value, by using the arrangement of the first partition plate 21 and the second partition plate 31, the dust can be separated from the wood chips and wood shavings for collection, and the dust pollution of the wood chips and wood shavings can be avoided.

[0060] The above are all the preferred embodiments of the present invention, and the protection scope of the present invention is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A dust separation device for cabinet processing, characterized in that, It comprises a frame (1), a dust removal box (4), a collection bucket (2) and a dust collection box (3), wherein the upper end of the collection bucket (2) is fixed to the frame (1), and the lower end of the collection bucket (2) is detachably connected to the dust collection box (3); The dust removal box (4) is fixed to the upper end of the collecting hopper (2), and an air intake channel (43), a dust removal chamber (47) and a liquid storage chamber (48) are sequentially arranged in the dust removal box (4) from left to right. The right side of the air intake channel (43) is connected to the dust removal chamber (47), and a filter plate (73) is arranged at the connection between the right side of the air intake channel (43) and the dust removal chamber (47). An air intake pipe (41) connected to the left side of the air intake channel (43) is arranged above the dust removal box (4); a dust cleaning chamber (46) symmetrically arranged therewith is arranged directly below the dust removal chamber (47), and rotating rollers (51) arranged horizontally front and rear are arranged in both the dust removal chamber (47) and the dust cleaning chamber (46); the rotating rollers (51) in the dust removal chamber (47) extend to the dust removal box (4) and are transmission-connected to the first servo motor (5); Filter cloths (52) are arranged between the rollers (51) so as to pass around their outer circumferences in sequence and be connected end to end; a slit (53) for the filter cloth (52) to pass through is arranged between the dust removal chamber (47) and the ash cleaning chamber (46); a rotating rod (94) with a torsion spring is arranged on the outer side of the filter cloth (52) in the ash cleaning chamber (46); a ash cleaning plate (95) which initially abuts against the filter cloth (52) is fixedly arranged on the rotating rod (94); a dust discharge channel (54) which is connected to the collecting bucket (2) is arranged at the lower end of the ash cleaning chamber (46); a connecting pipe (49) which is connected to the lower part of the liquid storage chamber (48) is arranged in 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) which is connected to the upper part of the liquid storage chamber (48) is arranged on the right side of the dust removal box (4).

2. The dust separation device for cabinet processing according to claim 1, characterized in that, The air inlet passage (43) is also provided with a clearing mechanism, the clearing mechanism comprising a second servo motor (6), a rotating shaft (61) and a clearing head (62); a block (44) is detachably mounted on the left side of the air inlet passage (43); the second servo motor (6) is mounted on the outside of the block (44); the output end of the second servo motor (6) is connected to the clearing head (62) through the rotating shaft (61); the clearing head (62) is a spiral cover body, and a radially extending The cleaning head (62) is connected to a cleaning plate (63); a plurality of support rods (65) connected to the inner wall thereof and the rotating shaft (61) are arranged on the side of the cleaning head (62) 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) via 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 cleaning head (62) is provided with a debris discharge channel (45) communicating with the air intake channel (43) and the collection bucket (2).

3. A dust separation device for cabinet processing according to claim 2, characterized in that, It further includes an anti-blocking and filtering mechanism (7). The anti-blocking and filtering mechanism (7) includes a rotating cylinder body (71) sleeved outside the clog-removing head (62) and rotatably matched with the inner wall of the air inlet passage (43). A blanking hole (76) matching the impurity discharge passage (45) is arranged on the rotating cylinder body (71); a second annular plate (74) is arranged on the left side of the rotating cylinder body (71), a first annular plate (72) is arranged on the right side of the rotating cylinder body (71), and the filter plate (73) is fixed to the inner side of the first annular plate (72); a first annular groove (57) and a second annular groove (58) matching the first annular plate (72) and the second annular plate (74) respectively are arranged in the dust removal box (4). A first blocking rod (78) is arranged above the side of the filter plate (73) facing the clog-removing head (62), and a second blocking rod (79) symmetrically arranged with the first blocking rod (78) is arranged below the filter plate (73); the filter plate (73) is eccentrically arranged with respect to the rotating shaft (61), and its axis is above the axis of the rotating shaft (61); the maximum distance from the rotating shaft (61) to the spiral cover body is greater than the distance from the rotating shaft (61) to the second blocking rod (79) and less than the distance from the rotating shaft (61) to the first blocking rod (78).

4. A dust separation device for cabinet processing according to claim 3, characterized in that, A horizontal groove (59) arranged horizontally front and back is arranged at the upper end of the impurity discharge passage (45). A sealing plate (8) for blocking the impurity discharge passage (45) is arranged in the horizontal groove (59). The space between the sealing plate (8) and the air inlet passage (43) above forms a pre-storage cavity; a rack (81) extending to the second annular groove (58) is arranged on the left side of the sealing plate (8). A plurality of groups of first springs (82) are arranged between the front end of the rack (81) and the front side wall of the horizontal groove (59); meshing teeth (75) are arranged on the second annular plate (74) in a partial arc distribution 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 blanking hole (76), and the minimum radian from the meshing teeth (75) to the blanking hole (76) is greater than the radian between both sides of the blanking hole (76).

5. A dust separation device for cabinet processing according to claim 4, characterized in that, A sunken groove (55) is arranged in the dust removal cavity (47) directly above the dust cleaning plate (95). A ejector rod (9) is arranged in the sunken groove (55). The ejector rod (9) is connected with the bottom of the sunken groove (55) through a second spring (91); a plurality of groups of arc-shaped plates (77) are evenly arranged on the filter plate (73) on one side of the dust removal cavity (47). The distance between the arc-shaped plates (77) and the filter plate (73) gradually increases along the rotation direction; the connection line between the outer side of one arc-shaped plate (77) and the center of the filter plate (73) passes through the adjacent another arc-shaped plate (77).

6. The dust separation device for cabinet processing according to claim 5, wherein, A guide hole (56) communicating with the dust cleaning cavity (46) is arranged at the bottom of the sunken groove (55). A guide rod (92) connected with the ejector rod (9) is arranged in the guide hole (56); an inclined plate (93) is further arranged on the rotating rod (94). The guide rod (92) can squeeze the inclined plate (93) when moving downward and drive the dust cleaning plate (95) to move away from the filter cloth (52) against the elastic force of the torsion spring.

7. A dust separation device for cabinet processing according to any one of claims 2-6, characterized in that, A horizontal slot is provided at the lower end of the collection hopper (2), and a plug board (22) for blocking the lower end of the collection hopper (2) is arranged in the slot, and one end of the plug board (22) extends outside the collection hopper (2).

8. A dust separation device for cabinet processing according to claim 7, characterized in that, The dust collection box (3) is detachably connected to the lower end of the collection hopper (2) through a buckle assembly (32). A first partition board (21) for separating the dust discharge channel (54) and the impurity discharge channel (45) is arranged in the collection hopper (2), and a second partition board (31) matching the first partition board (21) is correspondingly arranged in the dust collection box (3).

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