Dust removal system for machine tools

Abstract

The present invention relates to the technical field of machine tools, and discloses a dust removal system for machine tools. The filtering mechanism includes an upper water diversion plate and a lower water diversion plate with plate surfaces inclined in opposite directions. The lower edge of the upper water diversion plate corresponds longitudinally to the plate surface of the lower water diversion plate. The plate surface of the upper water diversion plate is located below the water storage tank. A horizontal gap is maintained between the lower edges of the upper water diversion plate and the lower water diversion plate and the inner wall of the filtering chamber. In the dust removal system for machine tools of the present invention, the water curtain can wash the airflow passing through the filtering chamber to carry away the dust impurities contained in the airflow, thereby achieving the purpose of purifying the air. The washed water can return to the water receiving tank through the water outlet holes for recycling. During this process, the water curtain can wash the dust impurities remaining on the lower water diversion plate to avoid the formation of impurity particles that are difficult to remove. At the same time, the airflow passing through the filtering mechanism exchanges heat with the water curtain, and the cooled airflow passes through the exhaust fan, which can cool the exhaust fan, thereby increasing the operating duration of the exhaust fan.

Description

Technical Field

[0001] The present invention relates to the technical field of machine tools, and in particular to a dust removal system for machine tools. Background Art

[0002] In metal processing equipment, there is still a part that needs to be operated manually, and this part of the operation cannot be replaced by a numerically controlled lathe. For example, the utility model patent with the publication number CN206445495U discloses a similar metal processing equipment, hereinafter referred to as a machine tool.

[0003] During the machining process of the machine tool, a large amount of dust will be generated. A large amount of dust not only causes environmental pollution around, but also quickly clogs the abrasive belt or tool, forcing the machine tool to stop working. At the same time, after these dusts are inhaled by the operator, they will have an adverse impact on the human body, so there is still room for improvement. Summary of the Invention

[0004] Aiming at the disadvantages of the prior art, the present invention provides a dust removal system for a machine tool, which can effectively remove the dust generated during the machining process of the machine tool and filter the dust, thereby reducing the adverse effects caused by the dust.

[0005] In order to solve the above technical problems, the present invention is solved by the following technical solutions:

[0006] A dust removal system for a machine tool includes a common machine tool. A closed cover is arranged outside the common machine tool. A sliding door is arranged on the front side of the closed cover, and a ventilation opening is arranged on the rear side of the closed cover. A dust filtering and collecting device is arranged on one side of the common machine tool. The dust filtering and collecting device includes a filtering chamber and a suction fan. The suction fan is arranged at the top of the filtering chamber and the air outlet direction is upward. A suction pipe is communicated between the lower part of the side wall of the filtering chamber and the ventilation opening. A water outlet hole is opened at the bottom of the filtering chamber. A water receiving tank corresponding to the water outlet hole is arranged below the filtering chamber. A water storage tank is arranged on the inner side wall of the filtering chamber above the water outlet hole. A water outlet is opened on the inner side wall of the water storage tank, and a water inlet penetrates through the other side wall of the water storage tank. A water pump is arranged on the water receiving tank. The inlet of the water pump is communicated with the water storage tank, and the outlet of the water pump is connected to the water inlet through a water pipe. A filtering mechanism is further arranged in the filtering chamber between the water outlet hole and the water storage tank. The filtering mechanism includes an upper water guiding plate and a lower water guiding plate with the plate surfaces inclined in opposite directions. The lower edge of the upper water guiding plate corresponds longitudinally to the plate surface of the lower water guiding plate. The plate surface of the upper water guiding plate is located below the water storage tank. A horizontal interval is maintained between the lower edges of the upper water guiding plate and the lower water guiding plate and the inner side wall of the filtering chamber.

[0007] With the above - mentioned solution, under the action of the closed cover, the dust generated by the ordinary machine tool processing cannot spread to the outside, avoiding dust pollution to the surrounding environment. The sliding door enables the operator to enter and exit the closed cover conveniently. After the exhaust fan runs, it can successively extract the air with dust in the closed cover through the filter chamber, the exhaust duct and the ventilation opening, so as to reduce the dust concentration in the closed cover, thereby reducing the harm of dust to the human body. The water pump can pump the water in the water receiving tank to the water storage tank. The water in the water storage tank can overflow through the water outlet and flow into the upper water diversion plate of the filtering mechanism. The water on the upper water diversion plate can flow down to the lower water diversion plate, thus forming a water curtain between the upper and lower water diversion plates. The water curtain can wash the airflow passing through the filter chamber to carry away the dust impurities contained in the airflow, thereby achieving the purpose of purifying the air. The washed - down water can return to the water receiving tank through the water outlet holes for recycling. During this process, the water curtain can wash the dust impurities remaining on the lower water diversion plate, avoiding the formation of impurity particles that are difficult to remove. At the same time, the airflow passing through the filtering mechanism exchanges heat with the water curtain. The cooled airflow passes through the exhaust fan, which can cool the exhaust fan, thereby increasing the running duration of the exhaust fan.

[0008] Preferably, upper water baffle plates are arranged on both side edges of the upper water diversion plate, and lower water baffle plates are arranged on both side edges of the lower water diversion plate.

[0009] With the above - mentioned solution, the water flow on the upper and lower water diversion plates can flow downward along the inclined plate surface instead of flowing to both sides, increasing the density and flow efficiency of the water curtain, thereby improving the purification effect of the water curtain.

[0010] Preferably, multiple filtering mechanisms are provided, and the multiple filtering mechanisms are arranged longitudinally.

[0011] With the above - mentioned solution, the multiple filtering mechanisms can make the water curtain form a "zigzag" structure, further improving the purification effect of the water curtain.

[0012] Preferably, a multiple - layer filtering device is arranged between the water outlet hole and the water receiving tank.

[0013] Preferably, the multiple - layer filtering device includes a water receiving hopper located below the water outlet hole and a longitudinal water receiving pipe connected to the lower part of the water receiving hopper. Primary filtering holes communicating with the water receiving pipe are opened at the bottom of the water receiving hopper, and multiple groups of filter meshes are longitudinally arranged in the water receiving pipe.

[0014] With the above - mentioned solution, the multiple - layer filtering device can purify the dirty water washed down to ensure the water quality in the water receiving tank and avoid the decline of the purification effect of the water curtain.

[0015] Preferably, a sliding opening for the transverse sliding and clamping of the filter mesh is opened on the side wall of the water receiving pipe.

[0016] With the above - mentioned solution, it is convenient to replace the filter mesh.

[0017] Preferably, an inclined diversion plate is provided between the water outlet hole and the lower water diversion plate. The inclination direction of the diversion plate is the same as that of the lower water diversion plate. The lower edge of the lower water diversion plate is located above the plate surface of the diversion plate, and the lower edge of the diversion plate is located on one side of the water outlet hole.

[0018] With the above solution, the water passing through the filtering mechanism can flow more smoothly into the water outlet hole, so as to improve the water outlet efficiency of the water outlet hole.

[0019] Preferably, a wind guide plate is provided between the connection port of the side wall of the filtering chamber and the air extraction pipe and the upper edge of the diversion plate, so that the air flow blown out from the connection port has a tendency towards the lower water diversion plate.

[0020] With the above solution, the wind guide plate can effectively separate the water flow and the air flow in the filtering chamber, and avoid interference in the air purification process.

[0021] Preferably, a buffer cover is provided between the air extraction pipe and the side wall of the filtering chamber, and the cross-sectional size of the buffer cover is the same as that of the side wall of the filtering chamber.

[0022] With the above solution, when the air flow in the air extraction pipe passes through the buffer cover, it can first collide with the outer side wall of the filtering chamber and disperse under the blocking action of the outer side wall, so that the air flow entering the filtering chamber is more dispersed, and then the air flow in the filtering chamber can contact the water curtain more evenly, further improving the air purification effect of the filtering chamber.

[0023] Preferably, a rotating shaft rotatably connected to the inner cavity of the filtering chamber is provided between the lower edge of the lower water diversion plate and the diversion plate. A plurality of driving blades are annularly arranged on the outer peripheral surface of the rotating shaft. Both ends of the rotating shaft extend outwards through the side wall of the filtering chamber to form extension shafts. A limiting shaft is coaxially arranged on the extension shaft. A rotational speed sensor is provided on the outer side wall of the filtering chamber. A control module is coupled to the rotational speed sensor. A start button and a stop button are coupled to the control module. The water pump and the air extraction fan are both coupled to and controlled by the control module. A rotational speed threshold is preset in the control module; the start button responds to external triggering to send a start signal to the control module. After receiving the start signal, the control module controls the water pump to operate; at the same time, the control module controls the rotational speed sensor to detect the rotational speed of the limiting shaft and send a corresponding rotational speed signal to the control module. The control module compares the rotational speed value included in the received rotational speed signal with the rotational speed threshold;

[0024] If the rotational speed value is greater than or equal to the rotational speed threshold, the control module controls the air extraction fan to operate; otherwise, if the rotational speed value is less than the rotational speed threshold, the control module does not control the air extraction fan to operate;

[0025] The stop button responds to external triggering to send a stop signal to the control module. After receiving the stop signal, the control module first controls the air extraction fan to stop operating, and then controls the water pump to stop operating.

[0026] With the above solution, only when the water pump operates for a period of time and the operating intensity of the water curtain reaches the standard, the exhaust fan can operate to extract the air with dust impurities in the closed cover. Correspondingly, before the water pump stops operating, the exhaust fan needs to be stopped first to avoid polluting the surrounding environment with the airflow containing dust impurities, which is more user-friendly.

[0027] Since the present invention adopts the above technical solution, it has remarkable technical effects: under the action of the closed cover, the dust generated by the machining of the ordinary machine tool cannot spread to the outside, avoiding dust pollution to the surrounding environment, and the sliding door can facilitate the operator to enter and exit the closed cover. After the exhaust fan operates, it can successively extract the air with dust in the closed cover through the filter chamber, the exhaust duct and the ventilation opening to reduce the dust concentration in the closed cover, thereby reducing the harm of dust to the human body. The water pump can pump the water in the water receiving tank to the water storage tank, and the water in the water storage tank can overflow through the water outlet and flow into the upper water guiding plate of the filtering mechanism. The water on the upper water guiding plate can flow down to the lower water guiding plate, thereby forming a water curtain between the upper and lower water guiding plates. The water curtain can wash the airflow passing through the filter chamber to carry away the dust impurities contained in the airflow, so as to achieve the purpose of purifying the air. The washed water can return to the water receiving tank through the water outlet holes for recycling. During this process, the water curtain can wash the dust impurities remaining on the lower water guiding plate to avoid the formation of impurity particles that are difficult to remove. At the same time, the airflow passing through the filtering mechanism exchanges heat with the water curtain, and the cooled airflow passes through the exhaust fan, which can cool the exhaust fan, thereby increasing the operating duration of the exhaust fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Structural schematic diagram of the first embodiment Figure 1 ;

[0029] Figure 2 Structural schematic diagram of the first embodiment Figure 2 ;

[0030] Figure 3 Exploded view of the dust filtering and collecting device in the first embodiment Figure 1 ;

[0031] Figure 4 is Figure 3 Enlarged schematic view of part A shown in

[0032] Figure 5 is Figure 3 Enlarged schematic view of part B shown in

[0033] Figure 6 is Figure 2 Enlarged schematic view of part C shown in

[0034] Figure 7 Structural schematic diagram of the dust filtering and collecting device in the first embodiment;

[0035] Figure 8 is Figure 7 An enlarged schematic view of part D shown;

[0036] Figure 9 is the explosion Figure 2 ;

[0037] Figure 10 is the explosion Figure 3 ;

[0038] Figure 11 is Figure 1 An enlarged schematic view of part E shown;

[0039] Figure 12 is the structural schematic Figure 1 ;

[0040] Figure 13 is Figure 12 An enlarged schematic view of part F shown;

[0041] Figure 14 is the system architecture diagram of this second embodiment.

[0042] The names of the parts referred to by each numerical label in the above drawings are as follows: 1, ordinary machine tool; 2, closed cover; 3, sliding door; 4, ventilation opening; 5, dust filtering and collecting device; 6, filtering chamber; 7, exhaust fan; 8, exhaust duct; 9, water outlet hole; 10, water receiving tank; 11, water storage tank; 12, water outlet; 13, water inlet; 14, water pump; 16, filtering mechanism; 17, upper water diversion plate; 18, lower water diversion plate; 19, upper water baffle; 20, lower water baffle; 21, multi - layer filtering device; 22, water receiving hopper; 23, water connecting pipe; 24, primary filtering hole; 25, filter screen; 26, sliding opening; 27, diversion plate; 28, connection port; 29, air guiding plate; 30, buffer cover; 31, rotating shaft; 32, driving blade; 33, extension shaft; 34, limiting shaft; 35, rotational speed sensor; 36, control module; 37, start button; 38, stop button; 39, upper support rod; 40, lower support rod; 41, outlet. Specific embodiments

[0043] The present invention will be further described in detail below in conjunction with the drawings and embodiments.

[0044] Embodiment 1

[0045] As Figures 1 to 10As shown in the figure, a dust removal system for a machine tool disclosed in this embodiment includes a general machine tool 1. A closed cover 2 is arranged outside the general machine tool 1. The closed cover 2 can isolate the dust generated during the processing of the general machine tool 1 in a closed space, preventing the dust from spreading outwards and being more environmentally friendly. A sliding door 3 is arranged on the front side of the closed cover 2, and a ventilation opening 4 is arranged on the rear side of the closed cover 2. A dust filtration and collection device 5 for collecting and filtering dust is arranged on one side of the general machine tool 1. The dust filtration and collection device 5 includes a filtration chamber 6 and an exhaust fan 7. The filtration chamber 6 is arranged in a vertical cuboid shape. The exhaust fan 7 is arranged on the top of the filtration chamber 6 and the air outlet direction is upwards. A suction pipe 8 is connected between the lower part of the side wall of the filtration chamber 6 and the ventilation opening 4. A drain hole 9 is opened at the bottom of the filtration chamber 6. A water receiving tank 10 corresponding to the water outlet hole 9 is arranged below the filtration chamber 6. A water storage tank 11 is arranged on the inner side wall of the filtration chamber 6 above the water outlet hole 9. A water outlet 12 is horizontally opened on the inner side wall of the water storage tank 11. The upper edge of the water outlet 12 is horizontally arranged so that the water in the water storage tank 11 can overflow evenly. Another side wall of the water storage tank 11 is penetrated by a water inlet 13. A water pump 14 is arranged on the water receiving tank 10. The inlet of the water pump 14 is connected to the water storage tank 11, and the outlet 41 of the water pump 14 is connected to the water inlet 13 through a suction pipe (not shown). A filtration mechanism 16 is also arranged in the filtration chamber 6 between the water outlet hole 9 and the water storage tank 11. There are multiple filtration mechanisms 16, and the multiple filtration mechanisms 16 are arranged longitudinally. In this embodiment, each filtration mechanism 16 includes an upper water diversion plate 17 and a lower water diversion plate 18 with opposite inclined plate surfaces. The lower edge of the upper water diversion plate 17 corresponds longitudinally to the plate surface of the lower water diversion plate 18. The plate surface of the upper water diversion plate 17 is located below the water storage tank 11. A horizontal interval is maintained between the lower edges of the upper water diversion plate 17 and the lower water diversion plate 18 and the inner side wall of the filtration chamber 6 so that the water curtains on the upper water diversion plate 17 and the lower water diversion plate 18 can flow smoothly down along the plate surfaces. In this embodiment, the upper water diversion plate 17 and the lower water diversion plate 18 are respectively fixed to the inner side wall of the filtration chamber 6 through upper support rods 39 and lower support rods 40. Among the longitudinally arranged filtration mechanisms 16, the upper edge of the uppermost upstream upper water diversion plate 17 corresponds to the position below the water storage tank 11 to receive the water flowing out of the water storage tank 11. The upper edge of the upper water diversion plate 17 in the middle position corresponds to the lower edge of the lower water diversion plate 18 of the previous set of filtration mechanisms 16, so as to achieve the effect of guiding water in sequence.

[0046] In order to prevent the water on the upper water diversion plate 17 and the lower water diversion plate 18 from flowing out to both sides, upper water retaining plates 19 are arranged on both side edges of the upper water diversion plate 17, and lower water retaining plates 20 are arranged on both side edges of the lower water diversion plate 18.

[0047] In order to purify the water flow discharged from the water outlet hole 9, a multi-stage filtration device 21 is provided between the water outlet hole 9 and the water receiving tank 10. In this embodiment, the multi-stage filtration device 21 includes a water receiving hopper 22 located below the water outlet hole 9 and a longitudinal water receiving pipe 23 connected to the lower part of the water receiving hopper 22. The bottom of the water receiving hopper 22 is provided with primary filtration holes 24 communicating with the water receiving pipe 23. Multiple groups of filter meshes 25 are longitudinally arranged in the water receiving pipe 23, and the filter holes on the multiple groups of filter meshes 25 gradually decrease from top to bottom to achieve the hierarchical filtration of the multi-stage filtration device 21.

[0048] In order to facilitate the replacement of the filter mesh 25, a sliding opening 26 for the lateral sliding and clamping of the filter mesh 25 is provided on the side wall of the water receiving pipe 23.

[0049] In order to enable the water flow passing through the filtration mechanism 16 to converge into the water outlet hole 9 more efficiently, an inclined diversion plate 27 is provided between the water outlet hole 9 and the lower water diversion plate 18. The inclination direction of the diversion plate 27 is the same as that of the lower water diversion plate 18. The lower edge of the lower water diversion plate 18 is located above the plate surface of the diversion plate 27, and the lower edge of the diversion plate 27 is located on one side of the water outlet hole 9.

[0050] In order to separate the air flow from the water flow, a wind guide plate 29 is provided between the connection port 28 of the side wall of the filtration chamber 6 and the exhaust pipe 8 and the upper edge of the diversion plate 27 so that the air flow blown out from the connection port 28 has a tendency towards the lower water diversion plate 18.

[0051] In order to make the air flow entering the filtration chamber 6 more dispersed and uniform, a buffer cover 30 is provided between the exhaust pipe 8 and the side wall of the filtration chamber 6. The cross-sectional dimension of the buffer cover 30 is the same as that of the side wall of the filtration chamber 6.

[0052] Embodiment Two

[0053] As Figures 11 to 14As shown in the figure, on the basis of the first embodiment, a rotating shaft 31 rotatably connected to the inner cavity of the filtration chamber 6 is provided between the lower edge of the lower water diversion plate 18 and the diversion plate 27. A plurality of driving vanes 32 are annularly arranged on the outer peripheral surface of the rotating shaft 31. Both ends of the rotating shaft 31 extend outwardly with extension shafts 33 passing through the side wall of the filtration chamber 6. A limiting shaft 34 is coaxially arranged on the extension shaft 33. An optoelectronic speed sensor 35 is provided on the outer side wall of the filtration chamber 6. A control module 36 is coupled to the speed sensor 35. The control module 36 is a single-chip microcomputer or a PLC. A start button 37 and a stop button 38 are coupled to the control module 36. The water pump 14 and the exhaust fan 7 are both coupled to and controlled by the control module 36. A speed threshold is preset in the control module 36. The start button 37 responds to external triggering to send a start signal to the control module 36. After receiving the start signal, the control module 36 controls the water pump 14 to operate so as to form a water curtain in the filtration chamber 6. At the same time, the control module 36 controls the speed sensor 35 to detect the speed of the limiting shaft 34 and send a corresponding speed signal to the control module 36. The control module 36 compares the speed value included in the received speed signal with the speed threshold.

[0054] If the speed value is greater than or equal to the speed threshold, it indicates that the intensity of the water curtain has reached the standard, then the control module 36 controls the exhaust fan 7 to operate; on the contrary, if the speed value is less than the speed threshold, it indicates that the intensity of the water curtain has not reached the standard, then the control module 36 does not control the exhaust fan 7 to operate.

[0055] Correspondingly, the stop button 38 responds to external triggering to send a stop signal to the control module 36. After receiving the stop signal, the control module 36 first controls the exhaust fan 7 to stop operating, and then controls the water pump 14 to stop operating, preventing unfiltered air flow from entering the outside world and further improving the environmental protection performance of the filtration chamber 6.

[0056] The working process of the dust removal system for machine tools will be described below in combination with the first embodiment and the second embodiment:

[0057] When dust removal is required, press the start button 37 to cause the start button 37 to send a start signal to the control module 36. The control module 36 controls the operation of the water pump 14 in response to the start signal. The water pump 14 pumps the water in the water receiving tank 10 into the water storage tank 11, so that the water in the water storage tank 11 overflows through the water outlet 12. The overflowing water flows to the upper water guiding plate 17 of the filtering mechanism 16 and flows along the upper water guiding plate 17 onto the plate surface of the lower water guiding plate 18, so as to form a water curtain between the lower edge of the upper water guiding plate 17 and the upper plate surface of the lower water guiding plate 18. When the water flow passes through the entire filtering chamber 6, a zigzag water curtain can be formed between all the filtering mechanisms 16. At the same time, the lowermost lower water guiding plate 18 guides the water flow obliquely above the rotating shaft 31 to drive the driving blades 32 on the rotating shaft 31 to turn in sequence, thereby driving the entire rotating shaft 31 to rotate, and further driving the limiting shaft 34 on the extension shaft 33 to rotate. At this time, the control module 36 controls the rotation speed sensor 35 to measure the rotation speed of the limiting shaft 34 and sends the rotation speed value to the control module 36. As the flow rate of the water curtain in the filtering chamber 6 increases, the rotation speeds of the driving blades 32, the rotating shaft 31, the extension shaft 33 and the limiting shaft 34 increase accordingly. When the rotation speed of the limiting shaft 34 is greater than or equal to the rotation speed threshold value built in the control module 36, it indicates that the intensity of the water curtain has reached the standard, and the control module 36 controls the exhaust fan 7 to operate. On the contrary, if the rotation speed of the limiting shaft 34 is less than the rotation speed threshold value built in the control module 36, it indicates that the intensity of the water curtain has not reached the standard, and the control module 36 does not control the exhaust fan 7 to operate.

[0058] After the exhaust fan 7 operates, it can sequentially extract the air with dust impurities in the closed cover 2 through the filtering chamber 6, the filtering mechanism 16, the air guiding plate 29, the connection port 28, the buffer cover 30, the exhaust duct 8 and the ventilation port 4, and cause these air to form an upward airflow in the filtering chamber 6. During the process of the airflow passing through the filtering mechanism 16, the water curtain can carry away the dust impurities in the airflow to achieve the effect of purifying the air. The purified airflow is finally discharged from the filtering chamber 6 through the exhaust fan 7 to avoid polluting the surrounding environment.

[0059] The water flow forming the water curtain finally flows through the filtering mechanism 16 onto the inclined drainage plate 27, and converges to the water outlet hole 9 under the guidance of the drainage plate 27, and then is discharged through the water outlet hole 9. The discharged water flow is filtered by the multiple filtering devices 21 and then discharged into the water receiving tank 10, and finally recycled by the water pump 14.

[0060] When shutdown is required, press the shutdown button 38 to send a shutdown signal to the control module 36. After receiving the shutdown signal, the control module 36 first controls the exhaust fan 7 to shut down, so that the airflow in the filtering chamber 6 disappears first. Then, the control module 36 controls the water pump 14 to shut down, so that the water curtain is closed, avoiding the remaining airflow in the filtering chamber 6 from being discharged through the exhaust fan 7, and further improving the environmental protection performance.

Claims

1. A dust removal system for a machine tool, comprising a general machine tool (1), characterized in that: An ordinary machine tool (1) is provided with an enclosure (2) on the outside. A sliding door (3) is provided on the front side of the enclosure (2), and a ventilation opening (4) is provided on the rear side of the enclosure (2). A dust filtration and collection device (5) is provided on one side of the ordinary machine tool (1). The dust filtration and collection device (5) includes a filtration chamber (6) and a suction fan (7). The suction fan (7) is arranged at the top of the filtration chamber (6) and the air outlet direction is upward. A suction pipe (8) is connected between the lower part of the side wall of the filtration chamber (6) and the ventilation opening (4). A water outlet hole (9) is opened at the bottom of the filtration chamber (6). A water receiving tank (10) corresponding to the water outlet hole (9) is arranged below the filtration chamber (6). A water storage tank (11) is arranged on the inner side wall of the filtration chamber (6) above the water outlet hole (9). A water outlet (12) is opened on the inner side wall of the water storage tank (11). The other side wall of the water storage tank (11) penetrates through a water inlet (13). A water pump (14) is arranged on the water receiving tank (10). The inlet of the water pump (14) is connected to the water storage tank (11), and the outlet (41) of the water pump (14) is connected to the water inlet (13) through a water pipe. A filtration mechanism (16) is also arranged in the filtration chamber (6) between the water outlet hole (9) and the water storage tank (11). The filtration mechanism (16) includes an upper water diversion plate (17) and a lower water diversion plate (18) with opposite inclined plate surfaces. The lower edge of the upper water diversion plate (17) corresponds longitudinally to the plate surface of the lower water diversion plate (18). The plate surface of the upper water diversion plate (17) is located below the water storage tank (11). A horizontal interval is maintained between the lower edges of the upper water diversion plate (17) and the lower water diversion plate (18) and the inner side wall of the filtration chamber (6). An inclined diversion plate (27) is arranged between the water outlet hole (9) and the lower water diversion plate (18). A rotating shaft (31) rotatably connected to the inner cavity of the filtration chamber (6) is arranged between the lower edge of the lower water diversion plate (18) and the diversion plate (27). A plurality of driving blades (32) are annularly arranged on the outer peripheral surface of the rotating shaft (31). Extension shafts (33) passing through the side wall of the filtration chamber (6) extend outward at both ends of the rotating shaft (31). A limiting shaft (34) is coaxially arranged on the extension shaft (33). A rotational speed sensor (35) is arranged on the outer side wall of the filtration chamber (6). A control module (36) is coupled to the rotational speed sensor (35). A start button (37) and a stop button (38) are coupled to the control module (36). The water pump (14) and the suction fan (7) are both coupled to and controlled by the control module (36). A rotational speed threshold value is preset in the control module (36). The start button (37) responds to external triggering to send a start signal to the control module (36). After receiving the start signal, the control module (36) controls the water pump (14) to operate. At the same time, the control module (36) controls the rotational speed sensor (35) to detect the rotational speed of the limiting shaft (34) to send a corresponding rotational speed signal to the control module (36). The control module (36) compares the rotational speed value included in the received rotational speed signal with the rotational speed threshold value. If the rotational speed value is greater than or equal to the rotational speed threshold, the control module (36) controls the operation of the exhaust fan (7); conversely, if the rotational speed value is less than the rotational speed threshold, the control module (36) does not control the operation of the exhaust fan (7). The stop button (38) responds to an external trigger to send a stop signal to the control module (36). After receiving the stop signal, the control module (36) first controls the exhaust fan (7) to stop running, and then controls the water pump (14) to stop running.

2. The dust removal system for machine tools according to claim 1, wherein: Upper water guide plates (19) are arranged on both side edges of the upper water guide plate (17), and lower water guide plates (20) are arranged on both side edges of the lower water guide plate (18).

3. The dust removal system for machine tools according to claim 1, wherein: A plurality of filtering mechanisms (16) are provided, and the plurality of filtering mechanisms (16) are arranged longitudinally.

4. The dust removal system for machine tools according to claim 1 or 2 or 3, characterized in that: A multi-stage filtering device (21) is arranged between the water outlet hole (9) and the water receiving tank (10).

5. The dust removal system for machine tools according to claim 4, characterized in that: The multi-stage filtering device (21) includes a water receiving hopper (22) located below the water outlet hole (9) and a longitudinal water receiving pipe (23) connected to the lower part of the water receiving hopper (22). Primary filtering holes (24) communicating with the water receiving pipe (23) are formed at the bottom of the water receiving hopper (22), and multiple groups of filter meshes (25) are longitudinally arranged in the water receiving pipe (23).

6. The dust removal system for a machine tool according to claim 5, characterized in that: A sliding opening (26) for the transverse sliding and clamping of the filter mesh (25) is formed in the side wall of the water receiving pipe (23).

7. The dust removal system for machine tools according to claim 1 or 2 or 3, characterized in that: The inclination direction of the drainage plate (27) is the same as that of the lower water guide plate (18). The lower edge of the lower water guide plate (18) is located above the plate surface of the drainage plate (27), and the lower edge of the drainage plate (27) is located on one side of the water outlet hole (9).

8. The dust removal system for machine tools according to claim 7, wherein: A wind guide plate (29) is arranged between the connection port (28) of the side wall of the filtering chamber (6) and the exhaust air pipe (8) to make the airflow blown out from the connection port (28) tend to flow towards the lower water guide plate (18).

9. The dust removal system for machine tools according to claim 1 or 2 or 3, characterized in that: A buffer cover (30) is arranged between the exhaust air pipe (8) and the side wall of the filtering chamber (6), and the cross-sectional dimension of the buffer cover (30) is the same as that of the side wall of the filtering chamber (6).

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