Dust collecting device for wood processing

Abstract

The invention relates to the technical field of wood processing, and discloses a dust collecting device for wood processing, which comprises a workbench, the top of the workbench is fixedly connected with a frame, the inner wall of the frame is fixedly connected with a sliding rod, the sliding rod is movably sleeved with a damping sliding block, the damping sliding block is provided with an exhaust fan, and the exhaust fan is fixedly connected with the frame. The input end of the exhaust fan communicates with a fan cover, and the output end of the exhaust fan communicates with a collecting tank through a connecting pipe. The motor drives the rotating rod to enable the rotating disc to rotate, dust and dust are distinguished through centrifugal force and separated for subsequent reprocessing, the sorting net is matched with the guiding block, classified collection is carried out according to different dust volumes, different processing requirements are met, the resource utilization rate is increased, and large-volume wood dust is used for manufacturing specific plates; small-size dust is used for manufacturing wood-plastic composite materials, and separation, classification and collection provide convenience for the applications.

Description

Technical Field

[0001] The invention relates to the technical field of wood processing, in particular to a dust collecting device used for wood processing. Background Art

[0003] According to a Chinese patent with the announcement number "CN208215574U", a dust collection device for wood processing includes a workbench and a cutting table, the cutting table is fixedly installed on the upper end of the workbench, a dust collecting cover is installed on the rear side of the dust outlet end of the cutting table, a water tank is fixedly installed on the upper end of the dust collecting cover, a water outlet pipe is arranged inside the dust collecting cover, the water outlet pipe is connected with the water tank through a connecting pipe, a control valve is fixedly installed on the connecting pipe, a spring is installed on the left wall of the inner cavity of the dust collecting cover, a scraper is connected to the right end of the spring, a pull rod is welded to the right end of the scraper, the pull rod passes through the right wall of the dust collecting cover and extends outward, the spring, the scraper and the pull rod are all located at the lower side of the water outlet pipe, a plurality of water outlet holes are opened at the lower end of the water outlet pipe, a dust outlet hole penetrating the workbench is opened on the workbench, a conduit is welded at the lower end of the dust outlet hole, and a dust filter bag is sleeved on the annular side of the conduit. The utility model can prevent dust from flying, facilitates dust collection, and has low cost.

[0004] The above patent, when in use, moistens the dust to prevent it from flying, but it is not convenient for the subsequent classification and treatment of the dust, and is not conducive to the recycling and reuse of the dust. Therefore, a dust collection device for wood processing is proposed to solve the above problems. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a dust collection device for wood processing in view of the deficiencies in the above-mentioned prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a dust collection device for wood processing, comprising a workbench, the top of the workbench is fixedly connected to a frame, the inner wall of the frame is fixedly connected to a slide bar, a damping slider is movably sleeved on the slide bar, an exhaust fan is installed on the damping slider, the input end of the exhaust fan is connected to a wind hood, and the output end of the exhaust fan is connected to a collection tank through a connecting pipe;

[0007] The collecting tank is provided with a sorting mechanism, which includes a motor, a rotating rod, a debris discharge port, a debris discharge pipe, an inner inclined plate, an outer inclined plate, a fixed plate, a guide block, a rotating plate, and a sorting net. The motor is fixedly installed on the top of the collecting tank, one end of the rotating rod is fixedly connected to the output end of the motor, and the other end of the rotating rod rotates and penetrates the top of the collecting tank. The debris discharge port is provided at the bottom of the rotating rod, one end of the debris discharge pipe is connected to the bottom of the rotating rod through a rotating joint, and the other end of the debris discharge pipe is fixedly penetrated through the inner wall of the collecting tank;

[0008] The inner inclined plate is fixedly connected to the inner wall of the collecting tank, the outer inclined plate is movably sleeved on the outer wall of the rotating rod, and the outer inclined plate is fixedly connected to the inner inclined plate through a connecting block, the fixed plate is fixedly connected to the bottom of the inner inclined plate, the guide block is fixedly connected to the bottom of the fixed plate, the turntable is fixedly sleeved on the rotating rod, and the top of the turntable is at the same height as the bottom of the impurity discharge port, the sorting net is fixedly connected to the turntable through a connecting block, and the inner wall of the sorting net is slidably connected to the fixed plate and the guide block.

[0009] Preferably, the sorting mechanism also includes a partition frame, a rotating block, a collecting trough, and a discharge pipe. The partition frame is fixedly connected to the bottom of the sorting net, the rotating block is fixedly connected to the outer wall of the partition frame, the collecting trough is fixedly connected to the inner wall of the collecting tank, and the inner wall of the collecting tank is slidably connected to the rotating block, one end of the discharge pipe is connected to the collecting trough, and the other end of the discharge pipe is fixedly connected to the inner wall of the collecting tank.

[0010] Preferably, the inner wall of the collecting tank is fixedly connected with a fixed block, the top of the fixed block is fixedly connected with a first limiting rod, the outer wall of the first limiting rod is movably sleeved with a lifting block, the outer wall of the first limiting rod is sleeved with a first spring, the two ends of the first spring are respectively fixedly connected to the fixed block and the lifting block, the lifting block is fixedly connected with an annular wave block, the inner wall of the annular wave block is provided with a brush, and the brush contacts the outer wall of the sorting net, the outer wall of the sorting net is fixedly connected with a moving rod, and the moving rod is slidably connected to the top of the annular wave block.

[0011] Preferably, a feed plate is fixedly connected to the inner wall of the collecting tank, and the feed plate is located below the connecting pipe. A filtering mechanism is provided inside the collecting tank, and the filtering mechanism is located below the feed plate. The filtering mechanism includes a filter screen and a rotating plate. The filter screen is fixedly connected to the inner wall of the collecting tank, and the rotating plate is fixedly connected to the outer wall of the rotating rod.

[0012] Preferably, a knocking rod is slidably connected to the rotating plate, the top of the knocking rod is fixedly connected to an inclined plate, the outer wall of the knocking rod is sleeved with a second spring, the two ends of the second spring are respectively fixedly connected to the inclined plate and the rotating plate, the inner wall of the collecting tank is fixedly connected to an inclined block, and the top of the inclined block is at the same height as the top of the inclined plate.

[0013] Preferably, a shaking mechanism is provided on the collection tank, and the shaking mechanism comprises a filter bag, and the filter bag is arranged at the bottom of the collection tank.

[0014] Preferably, a pull rod is fixedly connected to the top of the filter bag, and two blocks are arranged on the pull rod, the outer wall of the pull rod is movably sleeved with a ring, and the ring is located between the two blocks, a second limit rod is fixedly connected to the bottom of the inner wall of the collecting tank, the outer wall of the second limit rod is sleeved with a connecting rod, and the connecting rod is fixedly connected to the ring, the outer wall of the second limit rod is sleeved with a third spring, the two ends of the third spring are respectively fixedly connected to the inner wall of the collecting tank and the connecting rod, the top of the connecting rod is fixedly connected to a lifting rod, the top of the lifting rod is provided with a triangular block, the bottom of the turntable is fixedly connected to a pressure rod, and the bottom of the pressure rod and the bottom of the triangular block are at the same height.

[0015] Preferably, the collection tank is provided with two tank doors, one of which is located above the filter screen, and the other is located above the filter bag.

[0016] The present invention adopts the above technical solution to bring the following beneficial effects:

[0017] 1. This dust collection device for wood processing uses a motor to drive a rotating rod to rotate a turntable, uses centrifugal force to distinguish dust from dirt, and separates them for subsequent processing. The sorting net and the guide block cooperate to classify and collect dust according to different volumes, meet different processing needs, and improve resource utilization. Large-volume wood dust is used to manufacture specific boards, and small-volume dust is used to make wood-plastic composite materials. Separation and classification collection provides convenience for these applications.

[0018] 2. The dust collection device for wood processing, through a system composed of a first limit rod, a first spring and other components, drives the brush to move up and down to brush the sorting net when the sorting net rotates to prevent blockage. The sorting net remains unobstructed and can stably sort dust of different volumes, ensuring continuous and stable operation of the entire dust collection and treatment process, avoiding the impact of production efficiency due to blockage of the sorting net.

[0019] 3. This dust collection device for wood processing uses a filter to preliminarily screen wood dust and collect large volumes of dust. The rotating plate rotates to flatten the dust and improve the filtration efficiency. The inclined plate, the second spring and the inclined block interact with each other. When the rotating plate rotates, the knocking rod knocks the filter, further improving the filtration efficiency and preventing clogging, ensuring the stability of the filtration process, and making subsequent centrifugal separation and classification collection more efficient.

[0020] 4. This dust collection device for wood processing uses a filter bag to collect small dust. The shaking mechanism composed of a pressure rod and a second limit rod drives the filter bag to shake when the turntable rotates to prevent dust from clogging the filter bag and ensure smooth exhaust. This not only maintains the pressure balance inside the equipment and ensures the normal operation of the exhaust fan, but also prevents dust from overflowing due to filter bag clogging and polluting the environment.

[0021] 5. This dust collection device for wood processing has two doors on the collection tank, which are located above the filter screen and the filter bag, respectively, to facilitate the cleaning and collection of different types of dust, reducing the difficulty and time cost of manual operation. The overall design makes the maintenance and management of the equipment more convenient and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the back side of the present invention;

[0024] Figure 3 It is a cross-sectional view of the collecting tank of the present invention;

[0025] Figure 4 This is a schematic diagram of the interior of the collection tank of the present invention;

[0026] Figure 5 It is a schematic diagram of the turntable of the present invention;

[0027] Figure 6 This is a schematic diagram of the bottom of the turntable of the present invention;

[0028] Figure 7 This is a schematic diagram of the inner slant plate of the present invention;

[0029] Figure 8 This is a schematic diagram of the annular wave block of the present invention;

[0030] Fig. 9 This is an enlarged schematic diagram of point A of the present invention;

[0031] Fig.10 It is an enlarged schematic diagram of point B of the present invention.

[0032] In the figure: 1, workbench; 2, frame; 3, exhaust fan; 4, wind hood; 5, connecting pipe; 6, collecting tank; 7, sorting mechanism; 71, motor; 72, rotating rod; 73, impurity discharge port; 74, impurity discharge pipe; 75, inner inclined plate; 76, outer inclined plate; 77, fixed plate; 78, guide block; 79, rotating plate; 710, sorting net; 711, partition frame; 712, rotating block; 713, collecting trough; 714, discharge pipe; 715, fixed block; 716, A limit rod; 717, a first spring; 718, a lifting block; 719, an annular wave block; 720, a brush; 721, a moving rod; 8, a filtering mechanism; 81, a filter screen; 82, a rotating plate; 83, a knocking rod; 84, an inclined plate; 85, a second spring; 86, an inclined block; 9, a shaking mechanism; 91, a filter bag; 92, a pulling rod; 93, a second limit rod; 94, a connecting rod; 95, a third spring; 96, a circular ring; 97, a lifting rod; 98, a pressing rod. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position 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 therefore cannot be understood as a limitation on the present invention.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0037] See also Figure 1-10One embodiment of the present invention is: a dust collection device for wood processing, comprising a workbench 1, a frame 2 is fixedly connected to the top of the workbench 1, a slide bar is fixedly connected to the inner wall of the frame 2, a damping slider is movably sleeved on the slide bar, an exhaust fan 3 is installed on the damping slider, an input end of the exhaust fan 3 is connected to a wind hood 4, an output end of the exhaust fan 3 is connected to a collection tank 6 through a connecting pipe 5, a sorting mechanism 7 is arranged on the collection tank 6, the sorting mechanism 7 comprises a motor 71, a rotating rod 72, a debris discharge port 73, a debris discharge pipe 74, an inner inclined plate 75, an outer inclined plate 76, a fixed plate 77, a guide block 78, a rotating plate 79, and a sorting net 710, the motor 71 is fixedly installed on the top of the collection tank 6, one end of the rotating rod 72 is fixedly connected to the output end of the motor 71, The other end of the rotating rod 72 rotates to penetrate the top of the collecting tank 6, the impurity discharge port 73 is opened at the bottom of the rotating rod 72, one end of the impurity discharge pipe 74 is connected to the bottom of the rotating rod 72 through a rotating joint, and the other end of the impurity discharge pipe 74 is fixedly penetrated through the inner wall of the collecting tank 6, the inner inclined plate 75 is fixedly connected to the inner wall of the collecting tank 6, the outer inclined plate 76 is movably sleeved on the outer wall of the rotating rod 72, and the outer inclined plate 76 is fixedly connected to the inner inclined plate 75 through a connecting block, the fixed plate 77 is fixedly connected to the bottom of the inner inclined plate 75, the guide block 78 is fixedly connected to the bottom of the fixed plate 77, the rotating disk 79 is fixedly sleeved on the rotating rod 72, and the top of the rotating disk 79 is at the same height as the bottom of the impurity discharge port 73, the sorting net 710 is fixedly connected to the rotating disk 79 through the connecting block, and the sorting net 71 0 is slidably connected with the fixed plate 77 and the guide block 78, the sorting mechanism 7 also includes a partition frame 711, a rotating block 712, a collecting trough 713, and a discharge pipe 714, the partition frame 711 is fixedly connected to the bottom of the sorting net 710, the rotating block 712 is fixedly connected to the outer wall of the partition frame 711, the collecting trough 713 is fixedly connected to the inner wall of the collecting tank 6, and the inner wall of the collecting tank 6 is slidably connected with the rotating block 712, one end of the discharge pipe 714 is connected with the collecting trough 713, and the other end of the discharge pipe 714 is fixedly passed through the inner wall of the collecting tank 6, the inner wall of the collecting tank 6 is fixedly connected with a fixed block 715, the top of the fixed block 715 is fixedly connected with a first limiting rod 716, the outer wall of the first limiting rod 716 is movably sleeved with a lifting block 718, and the first limiting rod 716 is fixedly connected with a first limiting rod 716. The outer wall of 16 is sleeved with a first spring 717, and the two ends of the first spring 717 are fixedly connected to the fixed block 715 and the lifting block 718 respectively. The lifting block 718 is fixedly connected with an annular wave block 719, and the inner wall of the annular wave block 719 is provided with a brush 720, and the brush 720 contacts the outer wall of the sorting net 710. The outer wall of the sorting net 710 is fixedly connected with a moving rod 721, and the moving rod 721 is slidably connected to the top of the annular wave block 719. The inner wall of the collecting tank 6 is fixedly connected with a blanking plate, and the blanking plate is located below the connecting pipe 5. The collecting tank 6 is provided with a filtering mechanism 8, and the filtering mechanism 8 is located below the blanking plate. The filtering mechanism 8 includes a filter screen 81 and a rotating plate 82. The filter screen 81 is fixedly connected to the inner wall of the collecting tank 6.The rotating plate 82 is fixedly connected to the outer wall of the rotating rod 72, and a knocking rod 83 is slidably connected to the rotating plate 82. The top of the knocking rod 83 is fixedly connected to an inclined plate 84. The outer wall of the knocking rod 83 is sleeved with a second spring 85. The two ends of the second spring 85 are respectively fixedly connected to the inclined plate 84 and the rotating plate 82. The inner wall of the collecting tank 6 is fixedly connected to an inclined block 86, and the top of the inclined block 86 is at the same height as the top of the inclined plate 84.

[0038] Working principle: connect the impurity discharge pipe 74 and the material discharge pipe 714 to different collection boxes, process the wood through the workbench 1, and then move the damping slider to move the wind hood 4 to the top of the wood, start the exhaust fan 3 to collect the dust generated during the wood processing, the dust will enter the collection tank 6, and the dust will be preliminarily screened through the filter 81, and at the same time start the motor 71, the motor 71 drives the rotating rod 72 to rotate, and the rotation of the rotating rod 72 will drive the rotating plate 82 to rotate, spreading the dust on the filter 81, and at the same time, the rotating plate 82 will make the inclined plate 84 contact with the inclined block 86 during the rotation process, and the inclined plate 84 is driven to move downward under the action of the inclined block 86 and the second spring 85, thereby driving the knocking rod 83 to knock the filter 81, thereby improving the filtering stability of the filter 81. The dust passing through the filter 81 will return to the inner inclined plate 75 and the outer inclined plate 76, and then enter the rotating plate 79 through the gap between the inner inclined plate 75 and the outer inclined plate 76. The rotation of the rotating rod 72 will drive the rotating disk 79 to rotate, thereby generating centrifugal force. The wood dust with larger mass will move outward, and the dust with lighter mass will move inward, thereby falling into the impurity discharge pipe 74 through the impurity discharge port 73, and being discharged to the collection tank 6 through the impurity discharge pipe 74 for collection, while the dust moving outward will fall onto the sorting net 710, and the dust with smaller volume will pass through the sorting net 710 and fall into the collection trough 713 along the partition frame 711, and the partition frame 711 will rotate with the sorting net 710, thereby driving the rotating block 712 to rotate, and the rotating block 712 will discharge the dust in the collection trough 713 through the discharge pipe 714 to the collection tank 6 for collection, while the dust with larger volume will be intercepted by the sorting net 710, and rotate on the sorting net 710 as the sorting net 710 rotates, and the dust is moved downward while rotating through the guide block 78, so that the dust falls below through the gap between the sorting net 710 and the rotating disk 79 for separate collection;

[0039] When the sorting net 710 rotates, it will drive the moving rod 721 to rotate, so that the moving rod 721 slides on the annular wave block 719, thereby driving the annular wave block 719 to move back and forth up and down under the action of the first spring 717, thereby driving the brush 720 to move back and forth up and down to brush the sorting net 710 to avoid clogging of the sorting net 710 and affecting the sorting effect.

[0040] See also Figure 1-10On the basis of the above embodiment, in another embodiment of the present invention, preferably, a shaking mechanism 9 is provided on the collection tank 6, and the shaking mechanism 9 includes a filter bag 91, and the filter bag 91 is arranged at the bottom of the collection tank 6, and a pull rod 92 is fixedly connected to the top of the filter bag 91, and two blocks are arranged on the pull rod 92, and the outer wall of the pull rod 92 is movably sleeved with a ring 96, and the ring 96 is located between the two blocks, and the inner wall bottom of the collection tank 6 is fixedly connected with a second limiting rod 93, and the outer wall of the second limiting rod 93 is sleeved with a connecting rod 94, and the connecting rod 94 The outer wall of the second limiting rod 93 is fixedly connected to the circular ring 96, and the two ends of the third spring 95 are respectively fixedly connected to the inner wall of the collecting tank 6 and the connecting rod 94. The top of the connecting rod 94 is fixedly connected to a lifting rod 97, and a triangular block is provided on the top of the lifting rod 97. A pressure rod 98 is fixedly connected to the bottom of the turntable 79, and the bottom of the pressure rod 98 is at the same height as the bottom of the triangular block. Two tank doors are provided on the collecting tank 6, one of which is above the filter screen 81, and the other is above the filter bag 91.

[0041] Working principle: the dust passing through the gap between the sorting net 710 and the turntable 79 will fall onto the filter bag 91, and the excess air will be discharged through the filter bag 91. When the turntable 79 rotates, it will drive the pressure rod 98 to rotate. When the pressure rod 98 rotates to the triangular block, it will squeeze the triangular block downward, thereby driving the ring 96 to descend through the lifting rod 97 and the connecting rod 94, thereby driving the pull rod 92 to move downward under the action of the block, and then squeezing the filter bag 91 downward. When the pressure rod 98 is separated from the triangular block, the connecting rod 94 is reset under the action of the third spring 95, thereby driving the filter bag 91 to rise, thereby achieving the shaking of the filter bag 91 to avoid excessive dust affecting the exhaust effect of the filter bag 91. After the wood processing is completed, the large dust intercepted on the filter net 81 and the small dust on the filter bag 91 are collected by opening the tank door.

[0042] The present invention provides a dust collection device for wood processing. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be considered as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A dust collection device for wood processing, comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly connected to a frame (2), the inner wall of the frame (2) is fixedly connected to a slide bar, a damping slider is movably sleeved on the slide bar, an exhaust fan (3) is installed on the damping slider, the input end of the exhaust fan (3) is connected to a wind hood (4), and the output end of the exhaust fan (3) is connected to a collection tank (6) via a connecting pipe (5); The collecting tank (6) is provided with a sorting mechanism (7), the sorting mechanism (7) comprising a motor (71), a rotating rod (72), a debris discharge port (73), a debris discharge pipe (74), an inner inclined plate (75), an outer inclined plate (76), a fixed plate (77), a guide block (78), a rotating plate (79), and a sorting net (710); the motor (71) is fixedly mounted on the top of the collecting tank (6); one end of the rotating rod (72) is fixedly connected to the output end of the motor (71), and the other end of the rotating rod (72) rotates to penetrate the top of the collecting tank (6); the debris discharge port (73) is provided at the bottom of the rotating rod (72); one end of the debris discharge pipe (74) is connected to the bottom of the rotating rod (72) through a rotating joint, and the other end of the debris discharge pipe (74) is fixed to penetrate the inner wall of the collecting tank (6); The inner inclined plate (75) is fixedly connected to the inner wall of the collecting tank (6); the outer inclined plate (76) is movably sleeved on the outer wall of the rotating rod (72); the outer inclined plate (76) is fixedly connected to the inner inclined plate (75) via a connecting block; the fixed plate (77) is fixedly connected to the bottom of the inner inclined plate (75); the guide block (78) is fixedly connected to the bottom of the fixed plate (77); the rotating plate (79) is fixedly sleeved on the rotating rod (72); the top of the rotating plate (79) is at the same height as the bottom of the impurity discharge port (73); the sorting net (710) is fixedly connected to the rotating plate (79) via a connecting block; and the inner wall of the sorting net (710) is slidably connected to the fixed plate (77) and the guide block (78).

2. A dust collection device for wood processing according to claim 1, characterized in that: The sorting mechanism (7) also includes a partition frame (711), a rotating block (712), a collecting trough (713), and a discharge pipe (714); the partition frame (711) is fixedly connected to the bottom of the sorting net (710); the rotating block (712) is fixedly connected to the outer wall of the partition frame (711); the collecting trough (713) is fixedly connected to the inner wall of the collecting tank (6); and the inner wall of the collecting tank (6) is slidably connected to the rotating block (712); one end of the discharge pipe (714) is connected to the collecting trough (713), and the other end of the discharge pipe (714) is fixedly connected to the inner wall of the collecting tank (6).

3. A dust collection device for wood processing according to claim 2, characterized in that: The inner wall of the collecting tank (6) is fixedly connected with a fixed block (715), the top of the fixed block (715) is fixedly connected with a first limiting rod (716), the outer wall of the first limiting rod (716) is movably sleeved with a lifting block (718), the outer wall of the first limiting rod (716) is sleeved with a first spring (717), the two ends of the first spring (717) are respectively fixedly connected with the fixed block (715) and the lifting block (718), the lifting block (718) is fixedly connected with an annular wave block (719), the inner wall of the annular wave block (719) is provided with a brush (720), and the brush (720) contacts the outer wall of the sorting net (710), the outer wall of the sorting net (710) is fixedly connected with a moving rod (721), and the moving rod (721) is slidably connected with the top of the annular wave block (719).

4. A dust collection device for wood processing according to claim 3, characterized in that: The inner wall of the collecting tank (6) is fixedly connected to a feed plate, and the feed plate is located below the connecting pipe (5). A filter mechanism (8) is provided inside the collecting tank (6), and the filter mechanism (8) is located below the feed plate. The filter mechanism (8) comprises a filter screen (81) and a rotating plate (82). The filter screen (81) is fixedly connected to the inner wall of the collecting tank (6), and the rotating plate (82) is fixedly connected to the outer wall of the rotating rod (72).

5. A dust collection device for wood processing according to claim 4, characterized in that: A knocking rod (83) is slidably connected to the rotating plate (82), and a slanted plate (84) is fixedly connected to the top of the knocking rod (83). A second spring (85) is sleeved on the outer wall of the knocking rod (83), and two ends of the second spring (85) are respectively fixedly connected to the slanted plate (84) and the rotating plate (82). An inclined block (86) is fixedly connected to the inner wall of the collecting tank (6), and the top of the inclined block (86) is at the same height as the top of the slanted plate (84).

6. A dust collection device for wood processing according to claim 5, characterized in that: The collection tank (6) is provided with a shaking mechanism (9), the shaking mechanism (9) comprising a filter bag (91), and the filter bag (91) is arranged at the bottom of the collection tank (6).

7. A dust collection device for wood processing according to claim 6, characterized in that: The top of the filter bag (91) is fixedly connected to a pull rod (92), and two blocks are arranged on the pull rod (92); the outer wall of the pull rod (92) is movably sleeved with a ring (96), and the ring (96) is located between the two blocks; the bottom of the inner wall of the collecting tank (6) is fixedly connected to a second limiting rod (93); the outer wall of the second limiting rod (93) is sleeved with a connecting rod (94), and the connecting rod (94) is fixedly connected to the ring (96); the outer wall of the second limiting rod (93) is sleeved with a third spring (95), and the two ends of the third spring (95) are respectively fixedly connected to the inner wall of the collecting tank (6) and the connecting rod (94); the top of the connecting rod (94) is fixedly connected to a lifting rod (97), and the top of the lifting rod (97) is provided with a triangular block; the bottom of the turntable (79) is fixedly connected to a pressure rod (98), and the bottom of the pressure rod (98) is at the same height as the bottom of the triangular block.

8. A dust collection device for wood processing according to claim 7, characterized in that: The collection tank (6) is provided with two tank doors, one of which is located above the filter screen (81) and the other is located above the filter bag (91).

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