Wood-plastic plate dust removal cutting machine

Abstract

The invention discloses a wood-plastic plate dust removal cutting machine which comprises a machine cover, a dust collection pipeline and a filtering assembly. The upper end in the hood is a cutting area, and the top is provided with a positive pressure fan; the dust collecting pipeline is arranged at the lower end in the machine cover and can guide dust generated by cutting to be conveyed to the filtering assembly. The filtering assembly comprises a treatment pipeline and a treatment pond, the treatment pipeline is arranged at the lower end of the dust collection pipeline, the treatment pond is arranged below the treatment pipeline, and the treatment pipeline can spray dust into the treatment pond for separation and filtration. Air flow from top to bottom is formed through the positive pressure fan and the high-pressure sprayer, dust generated by cutting can be downwards conveyed into the treatment pipeline through the dust collection pipeline, the dust is sprayed into the filter cartridge through the high-pressure sprayer, and part of dust dissolved in water penetrates through the filter cartridge and can be discharged out of the treatment pond along with water. Part of water-insoluble dust is precipitated at the bottom of the filter cartridge, and wood chips float on the water surface in the filter cartridge, so that the dust and the wood chips are separated.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal and cutting, and in particular to a dust removal and cutting machine for a wood-plastic board. Background Art

[0002] Wood-plastic panels are widely used in many fields such as construction, furniture manufacturing, packaging, and decoration. When processing wood panels, the panels are often cut, and a large amount of dust is generated during the cutting process (the dust mainly comes from the panels themselves and air dust). For the safety of production work, dust removal is usually performed during the panel cutting process.

[0003] At present, when cutting wood-plastic boards, a box is usually used to isolate the cutting area, and the dust is sent to the air filter through a fan for filtering, and then the filtered air is discharged, and the filtered dust is recycled. Although the existing method of collecting dust by isolating and filtering the dust directly can achieve the effect of dust removal, in the dust removal process, the dust and air dust are usually mixed and filtered and then directly recycled. In particular, the negative pressure absorption dust removal method will inhale more air dust, while the dust can be reused, and the air dust has no utilization value. It is difficult to separate the dust and air dust directly by filtering, resulting in a large amount of air dust in the recycled dust, which increases the difficulty of handling when recycling the dust.

[0004] Therefore, the existing method of collecting dust by isolation and filtering the dust directly is difficult to separate the wood chips and the dust, resulting in a large amount of air dust in the dust, which affects the difficulty of dust recovery and processing. Summary of the invention

[0005] The object of the present invention is to provide a dust removal cutting machine for wood-plastic board, so as to solve the problem in the prior art that it is difficult to separate wood chips and dust, thereby causing the dust to contain a large amount of air dust, which affects the difficulty of dust recovery and processing.

[0006] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0007] A wood-plastic board dust removal cutting machine, comprising:

[0008] A cutting assembly, used for performing a plate cutting action;

[0009] A hood is installed outside the cutting assembly to wrap the cutting assembly to form a cutting area, and a positive-pressure fan is provided on the top of the hood, the negative-pressure side of the positive-pressure fan is connected to the outside and the positive-pressure side thereof blows air into the cutting area;

[0010] A dust collecting pipeline is arranged at the lower end of the inner part of the machine cover and communicates with the cutting area, and its lower end extends to the bottom of the machine cover;

[0011] A filter assembly is arranged at the lower end of the dust collecting pipeline to receive dust falling from the dust collecting pipeline, the filter assembly comprises a processing pipeline and a processing pool, the upper end of the processing pipeline is connected to the lower end of the dust collecting pipeline, and the lower end of the processing pipeline is placed in the processing pool;

[0012] A high-pressure sprayer is arranged on the processing pipeline, and a spraying end of the high-pressure sprayer is arranged in the processing pipeline and sprays toward the lower end of the processing pipeline to form a negative pressure at the lower end of the processing pipeline, and the high-pressure sprayer and the positive-pressure fan work together to form a directional airflow from top to bottom;

[0013] Wherein, a filter cartridge is arranged in the treatment tank, the lower end of the treatment pipeline is inserted into the filter cartridge, and the filter cartridge is partially immersed in the water in the treatment tank;

[0014] After the dust generated in the cutting area is carried by the directional airflow along the dust collecting pipeline to the processing pipeline, the high-pressure sprayer washes the dust and drops it into the filter cartridge, so that some of the dust soluble in water passes through the filter cartridge and can be discharged from the processing pool with water, while the wood chips cannot pass through the filter cartridge and float on the water surface in the filter cartridge, and some of the dust insoluble in water settles at the bottom of the filter cartridge to automatically separate the dust.

[0015] As a preferred solution of the present invention, a centrifugal motor is provided at the bottom of the treatment tank, the shaft of the centrifugal motor is installed at the bottom center of the filter cartridge, and the centrifugal motor is used to rotate the filter cartridge.

[0016] As a preferred solution of the present invention, the filter cartridge is provided with filter holes on the side thereof, and the filter holes are used to prevent wood chips from passing through;

[0017] A cone protruding upward is arranged at the center of the bottom surface of the filter cartridge, and the filter holes corresponding to the sides of the cone are in the shape of long strips, and the lower ends of the filter holes are closely attached to the edges of the cone.

[0018] As a preferred solution of the present invention, a filter screen is provided at the lower end of the filter cartridge, and the filter screen is located above the vertebral body;

[0019] After the water in the filter cartridge is drained, the filter screen can filter the wood chips and leave them above the filter screen, and the droplets remaining in the wood chips can drip downward and be discharged.

[0020] As a preferred solution of the present invention, a cover is provided at the upper end of the treatment pool, and the cover is assembled on the treatment pool;

[0021] The middle part of the cover body is provided with a pipe inlet, the lower end of the treatment pipeline can be inserted into the filter cartridge through the pipe inlet, and the upper edge of the cover body is provided with an exhaust port;

[0022] Buckles are arranged on the side of the cover body, and blocks matching the buckles are arranged on both sides of the upper end of the treatment pool, and the cover body can be fixed on the treatment pool through the buckles.

[0023] As a preferred solution of the present invention, hot air blowers are arranged on both sides of the pipe inlet, and when the cover body is installed on the treatment pool, the air outlet of the hot air blower can supply air downward toward the filter cartridge.

[0024] As a preferred solution of the present invention, a lifting frame is provided at the lower end of the treatment tank, a fixing rod is provided in the middle of the lifting frame, the centrifugal motor is provided on the fixing rod, and the bottom end of the filter cartridge is assembled and connected to the shaft of the centrifugal motor;

[0025] Wherein, after the lifting frame falls to the lower limit position, the lower end of the processing pipeline can be drawn out from the pipe inlet.

[0026] As a preferred solution of the present invention, the processing pipeline is a Y-shaped pipe, the upper end of the processing pipeline has a feed branch and a spray branch, the feed branch is connected to the lower end of the dust collecting pipeline, and the high-pressure sprayer is arranged in the spray branch.

[0027] As a preferred solution of the present invention, a drain pipe is provided at one side of the lower end of the treatment pool, and the drain pipe is provided with a hydraulic valve, which can automatically open to drain water when the water pressure exceeds a threshold value, or close to stop draining water when the water pressure is lower than the threshold value;

[0028] After the cutting is completed, the hydraulic valve can be manually controlled to open to discharge the water in the treatment pool.

[0029] As a preferred solution of the present invention, the dust collecting pipeline includes two dust collecting barrels arranged in parallel, the two dust collecting barrels are connected below to form an inclined guide pipeline, and the inclined lower end of the guide pipeline is connected to the upper end of the feed branch;

[0030] The dust collecting cylinder is tapered from top to bottom, the upper edges of the two dust collecting cylinders are fixed on the inner wall of the machine cover, and the upper edges of the dust collecting cylinders are in contact with the inner wall of the machine cover;

[0031] Wherein, the upper ends of the two dust collecting barrels are used to fix the plate cutting bracket in the machine cover to form the cutting area.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] The present invention forms a top-down airflow through a positive pressure fan and a high-pressure sprayer, so that the dust generated by cutting can be transported downward through the dust collecting pipeline to the processing pipeline, and the dust is sprayed into the filter cartridge by the high-pressure sprayer, so that part of the dust soluble in water passes through the filter cartridge and can be discharged from the processing pool with the water, while the wood chips cannot pass through the filter cartridge and float on the water surface in the filter cartridge, and part of the dust insoluble in water is settled at the bottom of the filter cartridge, thereby realizing the separation and processing of dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the drawings required for the implementation methods or the description of the prior art are briefly introduced below. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0035] Figure 1 A schematic diagram of a partial structure of a wood-plastic board dust removal and cutting machine provided in an embodiment of the present invention;

[0036] Figure 2 A schematic diagram of the structure of the hood and dust collection pipeline provided in an embodiment of the present invention;

[0037] Figure 3 A schematic diagram of a partial structure of a treatment pool provided in an embodiment of the present invention;

[0038] Figure 4 A schematic diagram of the structure of a filter cartridge provided in an embodiment of the present invention;

[0039] Figure 5 A schematic diagram of the structure of a processing pipeline portion provided in an embodiment of the present invention.

[0040] The numbers in the figure represent the following:

[0041] 1-machine cover; 2-dust collection pipeline; 3-filter assembly;

[0042] 11-cutting area; 12-positive pressure fan; 21-dust collecting cylinder; 22-guiding pipeline; 31-processing pipeline; 32-processing pool; 33-high pressure sprayer; 34-filter cartridge; 35-cover body;

[0043] 311-feed branch; 312-spray branch; 321-centrifugal motor; 322-block; 323-lifting frame; 324-fixing rod; 325-drain pipe; 326-hydraulic valve; 341-filter hole; 342-vertebral body; 343-filter screen; 351-inlet; 352-exhaust outlet; 353-buckle; 354-hot air blower. DETAILED DESCRIPTION

[0044] 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.

[0045] like Figure 1 As shown, the present invention provides a wood-plastic board dust removal cutting machine, comprising:

[0046] A cutting assembly, used for performing a plate cutting action;

[0047] A hood 1 is installed outside the cutting assembly to wrap the cutting assembly to form a cutting area 11. A positive pressure fan 12 is provided on the top of the hood 1. The negative pressure side of the positive pressure fan 12 is connected to the outside and the positive pressure side thereof blows air into the cutting area 11.

[0048] A dust collecting pipeline 2 is arranged at the lower end of the inner part of the hood 1 and is connected to the cutting area 11, and its lower end extends to the bottom of the hood 1;

[0049] The filter assembly 3 is arranged at the lower end of the dust collecting pipeline 2 to receive dust falling from the dust collecting pipeline 2. The filter assembly 3 includes a processing pipeline 31 and a processing pool 32. The upper end of the processing pipeline 2 is connected to the lower end of the dust collecting pipeline 2, and the lower end of the processing pipeline 31 is placed in the processing pool 32.

[0050] A high-pressure sprayer 33 is provided on the processing pipeline 31, and a spraying end of the high-pressure sprayer 33 is provided in the processing pipeline 31 and sprays toward the lower end of the processing pipeline 33 to form a negative pressure at the lower end of the processing pipeline 31, and the high-pressure sprayer 33 and the positive-pressure fan 12 work together to form a directional airflow from top to bottom;

[0051] A filter cartridge 34 is provided in the treatment tank 32, the lower end of the treatment pipeline 31 is inserted into the filter cartridge 34, and the filter cartridge 34 is partially submerged by the water in the treatment tank 32;

[0052] After the dust generated in the cutting area 11 is carried by the directional airflow along the dust collecting pipeline 2 to the processing pipeline 31, the high-pressure sprayer 33 washes the dust and drops it into the filter cartridge 34, so that some of the dust soluble in water passes through the filter cartridge 34 and can be discharged from the processing tank 32 with the water, while the wood chips cannot pass through the filter cartridge 34 and float on the water surface in the filter cartridge 34, and some of the dust insoluble in water settles at the bottom of the filter cartridge 34 to automatically separate the dust.

[0053] In this embodiment, a directional airflow is generated by a positive pressure fan 12 and a high-pressure sprayer 33, and the dust generated in the cutting area 11 is transported to the processing pipeline 31 through the dust collection pipeline 2, and sprayed by the high-pressure sprayer 33. The dust is washed into the filter cartridge 34 by high-pressure water mist, and some soluble dust is captured by water and enters the processing pool 32. Some water-insoluble dust is precipitated at the bottom of the filter cartridge 34, while wood chips cannot pass through the filter cartridge 34 and float on the water surface in the filter cartridge 34.

[0054] This embodiment can generate a directional airflow through the positive pressure fan 12 and the high-pressure sprayer 33, so that the dust generated in the cutting area 11 is transported to the processing pipeline 31 through the dust collection pipeline 2, and then sprayed by the high-pressure sprayer 33. The dust is washed into the filter cartridge 34 by the high-pressure water mist, and some soluble dust is captured by water and enters the processing pool 32. Some water-insoluble dust is precipitated at the bottom of the filter cartridge 34, while wood chips cannot pass through the filter cartridge 34 and float on the water surface in the filter cartridge 34, thereby realizing the separation and processing of dust.

[0055] Wood chips themselves are also a kind of biomass material and have multiple uses. In order to completely separate the wood chips from the dust in the filter cartridge 34, the following preferred embodiments are proposed.

[0056] like Figure 3 As shown, a centrifugal motor 321 is disposed at the bottom of the treatment tank 32 , and the shaft of the centrifugal motor 321 is installed at the bottom center of the filter cartridge 34 , and the centrifugal motor 321 is used to rotate the filter cartridge 34 .

[0057] Specifically, the centrifugal motor 321 drives the filter cartridge 34 to centrifugally process the wood chips, so that dust can be thrown out of the filter cartridge 34 while the wood chips remain in the filter cartridge 34 .

[0058] In order to prevent the dust partially deposited at the bottom of the filter cartridge 34 from accumulating in the center of the water vortex during centrifugation, the following preferred embodiments are proposed.

[0059] like Figure 3 and 4 As shown, the filter cartridge 34 is provided with filter holes 341, and the filter holes 341 are used to prevent wood chips from passing through;

[0060] A cone 342 protruding upward is provided at the center of the bottom surface of the filter cartridge 34 . The corresponding filter holes 341 on the side of the cone 342 are in the shape of long strips, and the lower ends of the filter holes 341 are closely attached to the edges of the cone 342 .

[0061] Specifically, after the dust that is insoluble in water is precipitated, it can slide down to both sides along the vertebral body 342, so it cannot accumulate in the center of the water vortex during centrifugation.

[0062] Among them, a long strip filter hole 341 is set at the bottom of the filter cartridge 34 to increase the pore size so as to better discharge the dust at the bottom of the filter cartridge 34 during centrifugation. The bottom of the filter hole 341 is close to the edge of the cone 342 to avoid dead corners and prevent dust accumulation.

[0063] During centrifugation, water needs to be discharged from the treatment tank 32 to take away dust. In order to prevent wood chips from being discharged from the bottom of the filter cartridge 34 after the water level drops, the following preferred embodiment is proposed.

[0064] like Figure 3 As shown, a filter screen 343 is disposed at the lower end of the filter cartridge 34, and the filter screen 343 is located above the vertebral body 342;

[0065] After the water in the filter cartridge 34 is drained, the filter screen 343 can filter the wood chips and leave them above the filter screen 343, and the droplets remaining in the wood chips can drip downward and be discharged.

[0066] Specifically, after the water in the treatment tank 32 is discharged, the wood chips can remain on the filter screen 34, and the dust is discharged downward along with the water.

[0067] In addition, after the water in the treatment pool 32 is drained, the high-pressure sprayer 33 can continue to spray into the filter cartridge 34 to rinse the wood chips. The rinsed water can be discharged downward through the filter screen 343 to take away the remaining dust.

[0068] In order to prevent the wood chips and water from splashing upward out of the treatment tank 32 when the wood chips are centrifuged, the following preferred embodiments are proposed.

[0069] like Figure 1 and 3 As shown, a cover 35 is provided at the upper end of the treatment pool 32, and the cover 35 is assembled on the treatment pool 32;

[0070] The middle of the cover body 35 is provided with a pipe inlet 351, through which the lower end of the processing pipeline 31 can be inserted into the filter cartridge 34, and the upper edge of the cover body 35 is provided with an exhaust port 352;

[0071] A buckle 353 is provided on the side of the cover body 35 , and blocks 322 matching the buckle 353 are provided on both sides of the upper end of the processing tank 32 . The cover body 35 can be fixed on the processing tank 32 by the buckle 353 .

[0072] Specifically, the cover 35 can be installed on the processing tank 32 through the buckle 353 and the block 322 to prevent the wood chips from flying out of the filter cartridge 34 .

[0073] The lower end of the processing pipeline 31 can be inserted from the pipe inlet 351 , and the gas after spraying and filtering can be discharged through the exhaust port 352 .

[0074] After the sawdust is cleaned, it is still in a wet state. In order to remove the moisture in the sawdust, the following preferred embodiments are proposed.

[0075] like Figure 3 As shown, hot air blowers 354 are provided on both sides of the pipe inlet 351 . When the cover 45 is installed on the treatment tank 32 , the air outlet of the hot air blower 354 can supply air downward toward the filter cartridge 34 .

[0076] Specifically, after the sawdust is sprayed and cleaned, the high pressure sprayer 33 is turned off, and the hot air blower 354 is turned on to blow hot air to the sawdust for drying.

[0077] In order to transfer the dried wood chips for processing, the following preferred embodiments are proposed.

[0078] like Figure 1 and 3 As shown, a lifting frame 323 is provided at the lower end of the treatment pool 32, a fixing rod 324 is provided in the middle of the lifting frame 323, the centrifugal motor 3 is provided on the fixing rod 324, and the bottom end of the filter cartridge 34 is assembled and connected with the shaft of the centrifugal motor 321;

[0079] Among them, after the lifting frame 323 falls to the lower limit position, the lower end of the processing pipeline 31 can be drawn out from the pipe inlet 351.

[0080] Specifically, after the lifting frame 323 falls to the lower limit position, the lower end of the processing pipeline 31 can be pulled out from the cover body 35. At this time, the cover body 35 can be removed, and the filter cartridge 34 can be removed from the shaft of the centrifugal motor 321 to remove the wood chips, or clean the filter cartridge and the processing tank.

[0081] In order to enable the high-pressure sprayer 33 to form a negative pressure environment in the processing pipeline 31 and cooperate with the positive-pressure fan 12 to form an airflow from top to bottom, the following preferred embodiments are proposed.

[0082] like Figure 5 As shown, the processing pipeline 31 is a Y-shaped pipe, and the upper end of the processing pipeline 31 has a feed branch 311 and a spray branch 312 , the feed branch 311 is connected to the lower end of the dust collecting pipeline 2 , and the high-pressure sprayer 33 is arranged in the spray branch 312 .

[0083] Specifically, the high-pressure sprayer 33 sprays high-pressure water mist toward the lower end of the processing pipeline 31, flushing the gas in the processing pipeline 31 into the filter cartridge 34, thereby forming a negative pressure environment in the feed branch 311, and then cooperating with the positive pressure fan 12 to form a directional airflow from top to bottom.

[0084] In order to prevent the water in the processing pool 32 from overflowing due to long-term spraying during the cutting process, the following preferred embodiments are proposed.

[0085] like Figure 3As shown, a drain pipe 325 is provided at one side of the lower end of the treatment pool 32, and the drain pipe 325 is provided with a hydraulic valve 326, which can automatically open to drain water when the water pressure exceeds a threshold, or close to stop draining water when the water pressure is lower than the threshold;

[0086] After the cutting is completed, the hydraulic valve 326 can be manually controlled to open to discharge the water in the treatment pool 32 .

[0087] Specifically, when the water level in the treatment tank 32 rises and the water pressure exceeds the threshold of the hydraulic valve 326, the hydraulic valve 326 opens to drain water. When the water level in the treatment tank 32 drops and the water pressure is lower than the threshold of the hydraulic valve 326, the hydraulic valve 326 closes to stop draining water.

[0088] In addition, after the cutting is completed, the hydraulic valve 326 can be manually controlled to open to drain the water in the processing pool 32.

[0089] In order to allow the dust to fall into the dust collecting pipeline 2 and be transported to the processing pipeline 31 under the blowing of the directional airflow, the following preferred embodiments are proposed.

[0090] like Figure 2 As shown, the dust collecting pipeline 2 includes two dust collecting barrels 21 arranged in parallel, and the two dust collecting barrels 21 are connected below to form an inclined guide pipeline 22, and the inclined lower end of the guide pipeline 22 is connected to the upper end of the feed branch 311;

[0091] The dust collecting barrel 21 is tapered from top to bottom, and the upper edges of the two dust collecting barrels 21 are fixed on the inner wall of the hood 1, and the upper edges of the dust collecting barrels 21 are in contact with the inner wall of the hood 1;

[0092] The upper ends of the two dust collecting barrels 21 are used to fix the plate cutting bracket in the hood 1 to form a cutting area 11 .

[0093] Specifically, the edges of the two dust collecting barrels 21 are fixedly attached to the inner wall of the hood 1 , and dust can fall into the dust collecting barrels 21 under the blowing of the directional airflow, and be transported to the feed branch 311 through the guide pipe 22 .

[0094] When the embodiment is working, the positive pressure fan 12 is turned on to blow air downward, and the dust generated by cutting is blown into the dust collecting barrel 21, and the dust is transported to the feed branch 311 through the guide pipe 22, and the dust is sprayed into the water in the filter cartridge 34 through the high-pressure sprayer 33. Part of the soluble dust is captured by the water and passes through the filter cartridge 34 into the treatment tank 32, and part of the insoluble dust is precipitated downward at the bottom of the filter cartridge 34, while the wood chips cannot pass through the filter cartridge 34 and float in the water in the filter cartridge 34;

[0095] After the cutting is completed, the hydraulic valve 326 is opened to drain the water in the processing pool 32, and the centrifugal motor 321 is turned on to rotate the filter cartridge 34 to centrifugally throw the dust out of the filter cartridge 34, and the high-pressure sprayer 33 is used to clean the sawdust. After cleaning, the high-pressure sprayer 33 is closed and the hot air blower 354 is turned on to dry the sawdust;

[0096] After the sawdust is dried, the lifting frame 323 is lowered to pull out the cover 35 from the lower end of the processing pipeline 31, and the cover 35 is opened to remove the filter cartridge 34 from the shaft of the centrifugal motor 321, so that the sawdust can be taken out and the filter cartridge 34 and the processing tank 32 can be cleaned.

[0097] It should be noted that the present invention is more suitable for wood-plastic boards that can float on water and their debris. As for wood-plastic boards that cannot float on water and their debris, the present invention can still retain the debris in the filter cartridge after discharging the sewage generated by dust and some fine debris powder, thereby separating the debris from the dust, that is, it still has the effect of dust removal and dust separation.

[0098] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A wood plastic board dust removal cutting machine, characterized in that: include: A cutting assembly, used for performing a plate cutting action; A hood (1) is installed outside the cutting assembly to wrap the cutting assembly to form a cutting area (11); a positive-pressure fan (12) is provided on the top of the hood (1); a negative-pressure side of the positive-pressure fan (12) is connected to the outside and a positive-pressure side thereof blows air into the cutting area (11); A dust collection pipeline (2) is arranged at the lower end of the interior of the machine cover (1) and is connected to the cutting area (11), and its lower end extends to the bottom of the machine cover (1); A filter assembly (3) is arranged at the lower end of the dust collecting pipeline (2) to receive dust debris falling from the dust collecting pipeline (2), the filter assembly (3) comprising a processing pipeline (31) and a processing pool (32), the upper end of the processing pipeline (2) is connected to the lower end of the dust collecting pipeline (2), and the lower end of the processing pipeline (31) is placed in the processing pool (32); A high-pressure sprayer (33) is provided on the processing pipeline (31), and a spraying end of the high-pressure sprayer (33) is arranged in the processing pipeline (31) and sprays toward the lower end of the processing pipeline (33) to form a negative pressure at the lower end of the processing pipeline (31), and the high-pressure sprayer (33) and the positive-pressure fan (12) work together to form a directional airflow from top to bottom; wherein a filter cartridge (34) is arranged in the treatment pool (32), the lower end of the treatment pipeline (31) is inserted into the filter cartridge (34), and the filter cartridge (34) is partially submerged in water in the treatment pool (32); After the dust generated in the cutting area (11) is carried by the directional airflow along the dust collecting pipeline (2) to the processing pipeline (31), the high-pressure sprayer (33) washes the dust and drops it into the filter cartridge (34), so that part of the dust soluble in water passes through the filter cartridge (34) and can be discharged from the processing pool (32) with the water, while the wood chips cannot pass through the filter cartridge (34) and float on the water surface in the filter cartridge (34), and part of the dust insoluble in water settles at the bottom of the filter cartridge (34), so as to automatically separate the dust.

2. A wood-plastic board dust removal cutting machine according to claim 1, characterized in that: A centrifugal motor (321) is provided at the bottom of the treatment tank (32), and the shaft of the centrifugal motor (321) is installed at the bottom center of the filter cartridge (34). The centrifugal motor (321) is used to rotate the filter cartridge (34).

3. A wood-plastic board dust removal cutting machine according to claim 2, characterized in that: The filter cartridge (34) is provided with filter holes (341), and the filter holes (341) are used to prevent wood chips from passing through; An upwardly protruding cone (342) is provided at the center of the bottom surface of the filter cartridge (34); the edge of the cone (342) is in a long strip shape corresponding to the filter hole (341), and the lower end of the filter hole (341) is in close contact with the edge of the cone (342).

4. A wood-plastic board dust removal cutting machine according to claim 3, characterized in that: A filter screen (343) is provided at the lower end of the filter cartridge (34), and the filter screen (343) is located above the vertebral body (342); After the water in the filter cartridge (34) is drained, the filter screen (343) can filter the wood chips and leave them above the filter screen (343), and the droplets remaining in the wood chips can drip downwards and be drained.

5. A wood-plastic board dust removal cutting machine according to claims 2-4, characterized in that: A cover (35) is provided at the upper end of the treatment pool (32), and the cover (35) is assembled on the treatment pool (32); The middle part of the cover body (35) is provided with a pipe inlet (351), and the lower end of the processing pipeline (31) can be inserted into the filter cartridge (34) through the pipe inlet (351), and the upper edge of the cover body (35) is provided with an exhaust port (352); A buckle (353) is provided on the side of the cover body (35), and blocks (322) matching the buckle (353) are provided on both sides of the upper end of the treatment pool (32), and the cover body (35) can be fixed on the treatment pool (32) by means of the buckle (353).

6. A wood-plastic board dust removal cutting machine according to claim 5, characterized in that: Hot air blowers (354) are provided on both sides of the pipe inlet (351); when the cover (45) is installed on the treatment pool (32), the air outlet of the hot air blower (354) can supply air downward toward the filter cartridge (34).

7. A wood-plastic board dust removal cutting machine according to claim 6, characterized in that: A lifting frame (323) is provided at the lower end of the treatment pool (32), a fixing rod (324) is provided in the middle of the lifting frame (323), the centrifugal motor (3) is provided on the fixing rod (324), and the bottom end of the filter cartridge (34) is assembled and connected to the shaft of the centrifugal motor (321); Wherein, after the lifting frame (323) falls to the lower limit position, the lower end of the processing pipeline (31) can be drawn out from the pipe inlet (351).

8. The dust removal cutting machine for wood plastic board according to claim 1, characterized in that: The processing pipeline (31) is a Y-shaped pipe, and the upper end of the processing pipeline (31) is provided with a feed branch (311) and a spray branch (312), the feed branch (311) is connected to the lower end of the dust collecting pipeline (2), and the high-pressure sprayer (33) is arranged in the spray branch (312).

9. The dust removal cutting machine for wood-plastic board according to claim 2, characterized in that: A drainage pipe (325) is provided at one side of the lower end of the treatment pool (32), and the drainage pipe (325) is provided with a hydraulic valve (326), and the hydraulic valve (326) can automatically open to drain water when the water pressure exceeds a threshold value, or close to stop draining water when the water pressure is lower than the threshold value; After the cutting is completed, the hydraulic valve (326) can be manually controlled to open to discharge the water in the treatment pool (32).

10. The method of the wood plastic board cutting machine according to claim 8, characterized in that: The dust collecting pipeline (2) comprises two dust collecting barrels (21) arranged in parallel, the two dust collecting barrels (21) are connected below to form an inclined guide pipeline (22), and the inclined lower end of the guide pipeline (22) is connected to the upper end of the feed branch (311); The dust collecting cylinder (21) is tapered from top to bottom, the upper edges of the two dust collecting cylinders (21) are fixed on the inner wall of the machine cover (1), and the upper edges of the dust collecting cylinders (21) are in contact with the inner wall of the machine cover (1); The upper ends of the two dust collecting barrels (21) are used to fix the plate cutting bracket inside the machine cover (1) to form the cutting area (11).

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