Automatic processing equipment and mounting method of assembled household cabinet body

Abstract

The invention discloses automatic machining equipment of a split mounting type household cabinet and a mounting method, and relates to the technical field of household machining, the automatic machining equipment comprises a base, a clamping piece, a top plate, a punching mechanism and a dust collecting mechanism, hydraulic push rods are fixed to the four corners of the base, and a supporting mechanism is arranged in the middle of the upper surface of the base. According to the automatic machining equipment of the assembled household cabinet and the mounting method, the dust collecting mechanism and the protection mechanism are arranged, in the punching process, a draught fan sucks flying dust in a protection cover into a dust collecting box through a communicating pipe, external air enters the protection cover through a filter screen plate, gas circulation is achieved, the flying dust is effectively collected, and meanwhile, the machining efficiency is improved. And the second motor drives the cleaning brush to rotate to clean flying dust attached to the filter plate, so that the filter plate is prevented from being blocked, the working efficiency of the fan is ensured, the working environment is improved, the maintenance cost is reduced, and the sustainable operation capability of equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of furniture processing, and in particular to automated processing equipment and an installation method for assembled furniture cabinets. Background Art

[0002] Furniture cabinets are frequently used in daily life. They are usually rectangular, with lids or doors, and are used to store things. They include filing cabinets, wardrobes, bookcases, under-desk cabinets, ladder cabinets, etc. As the times change, more and more of these cabinets are gradually replaced by metal products instead of wood products. In the processing of metal cabinets, it is usually necessary to punch holes through a punching device.

[0003] The invention with publication number CN117584218A discloses a punching device for a furniture cabinet, comprising a base, a lifting mechanism fixedly connected to both sides of one end of the base away from the legs, an adjusting mechanism fixedly connected between the lifting mechanisms, and a plurality of third driving members fixedly connected at intervals at one end of the adjusting mechanism close to the base, a drilling shaft being installed on the third driving member, the driving mechanism being installed inside the adjusting mechanism, and the fixing mechanism being fixedly connected to both sides of one end of the base away from the legs.

[0004] As shown in the above invention, the existing punching device can not only perform conventional punching processing, but also perform multiple equidistant punching processing on the plate, which improves the diversity and punching efficiency of the device; and the device can also drive the punching components on both sides to perform displacement adjustment through the adjustment mechanism, so as to perform equidistant punching processing with different spacing on the plate, further improving the diversity and practicality of the device. However, the existing punching device for furniture cabinets does not mention effective dust collection measures. The flying dust generated during the punching process may permeate the working environment, not only polluting the workplace, but also affecting the health of the operator. Moreover, there is no cleaning and maintenance design for the filter components. After long-term use, if there is a filter component, it may be blocked by flying dust and affect the performance of the device, and it is inconvenient to clean and replace, affecting work efficiency. Moreover, although the existing device can perform conventional drilling and multiple equidistant drilling, and the punching component can be displaced and adjusted through the adjustment mechanism to achieve equidistant drilling of different intervals, there is no mechanism like in the innovative technology to monitor the drilling depth in real time through the displacement sensor and feed back to the controller to accurately control the lifting height of the hydraulic push rod. The control of the drilling depth is not precise enough, which may lead to low drilling accuracy and affect the assembly quality of the home cabinet. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an automated processing device and an installation method for an assembled household cabinet, which solves the existing problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automated processing device for assembled household cabinets, comprising:

[0007] A base, wherein hydraulic push rods are fixed at the four corners of the base, and a supporting mechanism is provided in the middle of the upper surface of the base, and the supporting mechanism is used for placing the cabinet plate before clamping;

[0008] Clamping parts, the clamping parts are arranged at four sides of the upper surface of the base, and the four clamping parts cooperate to clamp and limit the plate;

[0009] A top plate, wherein the four corners of the lower surface of the top plate are connected to the output shaft of the hydraulic push rod, and a moving mechanism is installed on the lower surface of the top plate, and the moving mechanism includes two kinds of linear guide rails in the horizontal direction, which are used to drive the punching mechanism to move horizontally, and a controller for driving the device is also installed on the top plate;

[0010] A punching mechanism, which is installed on the movable end of the moving mechanism and is used to perform a punching operation on the corresponding position of the plate. A protective mechanism is provided on the punching mechanism, which is arranged on the outside of the drill bit to block flying dust generated during the drilling process;

[0011] The dust collecting mechanism is installed on the upper surface of the top plate and is connected to the protection mechanism through a connecting pipe to collect flying dust generated by drilling.

[0012] Preferably, the support mechanism on the base includes a fixed sleeve fixed to the middle of the upper surface of the base, a movable rod is connected to the fixed sleeve via internal and external threads, and a support plate is fixed to the top of the movable rod for temporarily supporting the plate.

[0013] Preferably, the clamping member includes a convex plate fixed in the middle of the four sides of the upper surface of the base, an electric push rod is installed on one side of the convex plate, the output shaft of the electric push rod is fixed with a clamping plate, both ends of the lower surface of the clamping plate are fixed with dovetail sliders, and the dovetail sliders are located in the dovetail slide groove for guiding the clamping plate.

[0014] Preferably, a convex plate is fixed to one side of the upper end of the splint for supporting the plate, a rubber strip is bonded to one side of the upper end of the splint, the rubber strip is located above the convex plate, pressure sensors are embedded at both ends of the rubber strip, and the pressure sensors are connected to the controller signal.

[0015] Preferably, the punching mechanism includes a first motor fixed on the lower surface of the movable plate, a protective cover is sleeved on the outer side of the output shaft of the first motor, a drill bit is connected to the bottom end of the output shaft through internal and external threads, the drill bit is located in the inner cavity of the protective cover, and both sides of the top of the protective cover are connected to the movable plate through a plurality of equally spaced telescopic rods, and a spring is arranged inside the telescopic rod for pressing the protective cover tightly when the protective cover is displaced.

[0016] Preferably, an empty groove is opened at one end of the upper surface of the protective cover, and a magnetic plate is connected to the outer side of the groove through magnetic attraction. The middle part of the magnetic plate is set as a filter screen plate, and the filter screen plate is located in the empty groove. A displacement sensor is bonded to the lower surface of the filter screen plate, and the displacement sensor is connected to the controller through a signal. The other end of the protective cover is connected to a connecting pipe for extracting flying dust generated by drilling.

[0017] Preferably, the dust collecting mechanism includes a dust box installed on the upper surface of the top plate, a connecting pipe is connected to the lower portion of one side of the dust box, a fan is installed on the other side of the dust box, a filter plate is provided at the input end of the fan, the filter plate is installed in an empty groove opened on the other side of the dust box, a second motor is fixed to the outside of one end of the dust box, the output shaft of the second motor passes through the dust box and is connected to a cleaning brush, the cleaning brush is in contact with the filter plate, and is used to clean the filter plate.

[0018] The present invention also discloses a method for installing an automated processing device for an assembled household cabinet, comprising the following steps:

[0019] Step 1: When installing the device, first place the home cabinet board on the support plate on the base, then start the electric push rod, which drives the splint to move. At this time, the dovetail slider and the dovetail slot cooperate to play a guiding and limiting role, so that the splint maintains linear movement;

[0020] Step 2: until the rubber strip on the clamping plate contacts the edge of the plate, when the pressure sensor on the rubber strip detects the pressure threshold, the controller controls the electric push rod to stop driving, at this time, the four clamping plates cooperate to clamp the plate to a limit position, and the convex plate on the clamping plate supports the plate, and then the support plate is twisted, the support plate drives the movable rod to rotate, and the movable rod is transmitted to the inside of the fixed sleeve, so that the height of the support plate is reduced, which does not affect the punching of the middle part of the plate;

[0021] Step 3: Then start the moving mechanism on the top plate, and the two horizontal and vertical linear guides on the moving mechanism drive the punching mechanism to move until the punching mechanism moves above the punching position. At this time, start the hydraulic push rod, and four synchronous hydraulic push rods drive the top plate to move downward, thereby driving the punching mechanism to move downward until the protective cover contacts the plate, and then start the first motor, which drives the drill bit to rotate and drill the plate. During this process, the protective cover is forced to move upward, causing the telescopic rod to be damaged, and the spring inside the protective cover drives the protective cover to be pressed against the plate, while the displacement sensor on the filter screen plate can monitor the depth of the drilling in real time, and control the hydraulic push rod to rise and fall to a specific height through the controller, thereby improving the drilling accuracy of the device;

[0022] Step 4: Start the fan on the dust box at the same time. The fan draws the flying dust in the protective cover into the dust box through the connecting pipe. At the same time, the outside air enters the protective cover through the filter plate to achieve gas circulation, preventing the flying dust in the protective cover from being drawn into the dust box. At the same time, start the second motor on the dust box. The second motor drives the cleaning brush to rotate to clean the flying dust attached to the filter plate to avoid clogging of the filter plate and does not affect the working efficiency of the fan.

[0023] Beneficial Effects

[0024] The present invention provides an automated processing device and installation method for assembled household cabinets. Compared with the prior art, it has the following beneficial effects:

[0025] 1. The automated processing equipment and installation method of the assembled household cabinet are provided with a dust collecting mechanism and a protective mechanism. During the punching process, the fan draws the flying dust in the protective cover into the dust collecting box through the connecting pipe, and the outside air enters the protective cover through the filter screen to realize gas circulation and effectively collect the flying dust. At the same time, the second motor drives the cleaning brush to rotate to clean the flying dust attached to the filter plate to avoid clogging of the filter plate and ensure the working efficiency of the fan, which not only improves the working environment, but also reduces the maintenance cost and improves the sustainable operation capability of the equipment.

[0026] 2. The automated processing equipment and installation method of the assembled home cabinet monitors the drilling depth in real time through a displacement sensor and transmits the data to a controller. The controller controls the hydraulic push rod to rise and fall to a specific height, thereby achieving precise control of the drilling depth. During the drilling process, the contact between the protective cover and the plate and the coordination between the telescopic rod and the spring also help to maintain the stability and accuracy of the drilling, thereby ensuring the high quality of the drilling of the home cabinet plate and improving the processing accuracy and product quality of the assembled home cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0028] Figure 2 It is a schematic diagram of the base structure of the present invention.

[0029] Figure 3 It is a schematic diagram of the structure of the clamping member of the present invention.

[0030] Figure 4 It is a schematic diagram of the top plate structure of the present invention.

[0031] Figure 5 It is a schematic diagram of the punching mechanism structure of the present invention.

[0032] Figure 6 It is a bottom view schematic diagram of the punching mechanism structure of the present invention.

[0033] Figure 7 It is a schematic diagram of the structure of the dust collecting mechanism of the present invention.

[0034] In the figure: base 1, hydraulic push rod 11, fixed sleeve 12, support plate 13, dovetail slide 14, clamping member 2, convex plate 21, electric push rod 22, clamping plate 23, dovetail slider 24, rubber strip 25, pressure sensor 26, top plate 3, linear guide 31, movable plate 32, controller 33, punching mechanism 4, first motor 41, protective cover 42, drill bit 43, telescopic rod 44, empty slot 45, magnetic plate 46, filter screen plate 47, displacement sensor 48, connecting pipe 49, dust collecting mechanism 5, dust collecting box 51, fan 52, filter plate 53, second motor 54, cleaning brush 55. DETAILED DESCRIPTION

[0035] 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.

[0036] See Figure 1-7 , the present invention provides the following three technical solutions:

[0037] The first embodiment: An automated processing equipment for assembled household cabinets, including a base 1, a clamping member 2, a top plate 3, a punching mechanism 4 and a dust collecting mechanism 5. Hydraulic push rods 11 are fixed at the four corners of the base 1. A supporting mechanism is provided in the middle of the upper surface of the base 1. The supporting mechanism is used for placing the cabinet board before clamping. The supporting mechanism on the base 1 includes a fixed sleeve 12 fixed in the middle of the upper surface of the base 1. A movable rod is connected to the fixed sleeve 12 through internal and external threads. A support plate 13 is fixed on the top of the movable rod for temporarily supporting the board.

[0038] Specifically, the clamping members 2 are arranged at the four sides of the upper surface of the base 1, and the four clamping members 2 are used to clamp and limit the plate. The clamping members 2 include a convex plate 21 fixed in the middle of the four sides of the upper surface of the base 1, and an electric push rod 22 is installed on one side of the convex plate 21. The output shaft of the electric push rod 22 is fixed with a clamping plate 23, and dovetail sliders 24 are fixed at both ends of the lower surface of the clamping plate 23. The dovetail slider 24 is located in the dovetail groove 14 and is used to guide the clamping plate 23. A convex plate is fixed to one side of the upper end of the clamping plate 23 for supporting the plate. A rubber strip 25 is bonded to one side of the upper end of the clamping plate 23, and the rubber strip 25 is located above the convex plate. Pressure sensors 26 are inlaid at both ends of the rubber strip 25, and the pressure sensor 26 is connected to the controller 33 signal.

[0039] Specifically, the four corners of the lower surface of the top plate 3 are connected to the output shaft of the hydraulic push rod 11. A moving mechanism is installed on the lower surface of the top plate 3. The moving mechanism includes two horizontal and vertical linear guide rails 31 in the horizontal direction, which are used to drive the punching mechanism 4 to move horizontally. A controller 33 for driving the device is also installed on the top plate 3.

[0040] More specifically, the punching mechanism 4 is installed on the movable end of the moving mechanism, and is used to perform a punching operation on the corresponding position of the plate. The punching mechanism 4 is provided with a protective mechanism, which is arranged on the outside of the drill bit 43 to block the flying dust generated during the drilling process. The punching mechanism 4 includes a first motor 41 fixed to the lower surface of the movable plate 32, and a protective cover 42 is sleeved on the outer side of the output shaft of the first motor 41. The bottom end of the output shaft is connected to the drill bit 43 through internal and external threads. The drill bit 43 is located in the inner cavity of the protective cover 42, and the top two sides of the protective cover 42 are connected by a plurality of equally spaced telescopic rods. 44 is connected to the movable plate 32, and a spring is arranged inside the telescopic rod 44 for pressing the protective cover 42 when the protective cover 42 is displaced. A slot 45 is arranged at one end of the upper surface of the protective cover 42, and a magnetic plate 46 is connected to the outer side of the slot 45 by magnetic attraction, and a filter screen plate 47 is arranged in the middle part of the magnetic plate 46, and the filter screen plate 47 is located in the slot 45, and a displacement sensor 48 is bonded to the lower surface of the filter screen plate 47, and the displacement sensor 48 is connected to the controller 33 through a signal, and a connecting pipe 49 is connected to the other end of the protective cover 42 for extracting flying dust generated by drilling.

[0041] More specifically, the dust collecting mechanism 5 is installed on the upper surface of the top plate 3. The dust collecting mechanism 5 is connected to the protective mechanism through a connecting pipe 49 to collect flying dust generated by punching. The dust collecting mechanism 5 includes a dust box 51 installed on the upper surface of the top plate 3. The lower part of one side of the dust box 51 is connected with the connecting pipe 49. A fan 52 is installed on the other side of the dust box 51. A filter plate 53 is provided at the input end of the fan 52. The filter plate 53 is installed in an empty groove opened on the other side of the dust box 51. A second motor 54 is fixed to the outside of one end of the dust box 51. The output shaft of the second motor 54 passes through the dust box 51 and is connected with a cleaning brush 55. The cleaning brush 55 is in contact with the filter plate 53 for cleaning the filter plate 53.

[0042] Second embodiment: The present invention also discloses a method for installing an automated processing device for assembled household cabinets, comprising the following steps:

[0043] Step 1: When installing the device, first place the home cabinet plate on the support plate 13 on the base 1, then start the electric push rod 22, the electric push rod 22 drives the clamping plate 23 to move, at this time the dovetail slider 24 and the dovetail slot 14 cooperate to play a guiding and limiting role, so that the clamping plate 23 maintains linear movement;

[0044] Step 2: until the rubber strip 25 on the clamping plate 23 contacts the edge of the plate, when the pressure sensor 26 on the rubber strip 25 detects the pressure threshold, the controller 33 controls the electric push rod 22 to stop driving, at this time, the four clamping plates 23 cooperate to clamp the plate to a limit position, and the convex plate on the clamping plate 23 supports the plate, and then the support plate 13 is twisted, the support plate 13 drives the movable rod to rotate, and the movable rod is transmitted to the inside of the fixed sleeve 12, so that the height of the support plate 13 is reduced, which does not affect the punching of the middle part of the plate;

[0045] Step 3: Then start the moving mechanism on the top plate 3, and the two horizontal and vertical linear guide rails 31 on the moving mechanism drive the punching mechanism 4 to move until the punching mechanism 4 moves above the punching position. At this time, start the hydraulic push rod 11, and the four synchronous hydraulic push rods 11 drive the top plate 3 to move downward, and then drive the punching mechanism 4 to move downward until the protective cover 42 contacts the plate, and then start the first motor 41, and the first motor 41 drives the drill bit 43 to rotate to drill the plate. In this process, the protective cover 42 is forced to move upward, so that the telescopic rod 44 is damaged, and the spring inside it drives the protective cover 42 to press against the plate, and the displacement sensor 48 on the filter screen plate 47 can monitor the depth of the drilling in real time, and control the hydraulic push rod 11 to rise and fall to a specific height through the controller 33, thereby improving the drilling accuracy of the device;

[0046] Step 4: Start the fan 52 on the dust box 51 at the same time. The fan 52 draws the flying dust in the protective cover 42 into the dust box 51 through the connecting pipe 49. At the same time, the outside air enters the protective cover 42 through the filter screen 47, thereby achieving gas circulation and preventing the flying dust in the protective cover 42 from being drawn into the dust box 51. At the same time, start the second motor 54 on the dust box 51. The second motor 54 drives the cleaning brush 55 to rotate, and cleans the flying dust attached to the filter plate 53 to avoid clogging of the filter plate 53 without affecting the working efficiency of the fan 52.

[0047] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated processing device for assembled home cabinets, characterized in that: include: A base, wherein hydraulic push rods are fixed at the four corners of the base, and a supporting mechanism is provided in the middle of the upper surface of the base, and the supporting mechanism is used for placing the cabinet plate before clamping; Clamping parts, the clamping parts are arranged at four sides of the upper surface of the base, and the four clamping parts cooperate to clamp and limit the plate; A top plate, wherein the four corners of the lower surface of the top plate are connected to the output shaft of the hydraulic push rod, and a moving mechanism is installed on the lower surface of the top plate, and the moving mechanism includes two kinds of linear guide rails in the horizontal direction, which are used to drive the punching mechanism to move horizontally, and a controller for driving the device is also installed on the top plate; A punching mechanism, which is installed on the movable end of the moving mechanism and is used to perform a punching operation on the corresponding position of the plate. A protective mechanism is provided on the punching mechanism, which is arranged on the outside of the drill bit to block flying dust generated during the drilling process; The dust collecting mechanism is installed on the upper surface of the top plate and is connected to the protection mechanism through a connecting pipe to collect flying dust generated by drilling.

2. The automated processing equipment for assembled household cabinets according to claim 1, characterized in that: The support mechanism on the base includes a fixed sleeve fixed on the middle part of the upper surface of the base, a movable rod is connected inside the fixed sleeve through internal and external threads, and a support plate is fixed on the top of the movable rod for temporarily supporting the plate.

3. The automated processing equipment for assembled household cabinets according to claim 1, characterized in that: The clamping member includes a convex plate fixed in the middle of the four sides of the upper surface of the base, an electric push rod is installed on one side of the convex plate, a clamping plate is fixed to the output shaft of the electric push rod, dovetail sliders are fixed at both ends of the lower surface of the clamping plate, and the dovetail slider is located in the dovetail slide groove for guiding the clamping plate.

4. The automated processing equipment for assembled household cabinets according to claim 3 is characterized in that: A convex plate is fixed on one side of the upper end of the clamping plate for supporting the plate. A rubber strip is bonded to one side of the upper end of the clamping plate. The rubber strip is located above the convex plate. Pressure sensors are embedded at both ends of the rubber strip. The pressure sensors are connected to the controller signal.

5. The automated processing equipment for assembled household cabinets according to claim 1, characterized in that: The punching mechanism includes a first motor fixed on the lower surface of the movable plate, a protective cover is sleeved on the outer side of the output shaft of the first motor, a drill bit is connected to the bottom end of the output shaft through internal and external threads, the drill bit is located in the inner cavity of the protective cover, both sides of the top of the protective cover are connected to the movable plate through a plurality of equally spaced telescopic rods, and a spring is arranged inside the telescopic rod for pressing the protective cover tightly when the protective cover is displaced.

6. The automated processing equipment for assembled household cabinets according to claim 5, characterized in that: An empty groove is opened at one end of the upper surface of the protective cover, and a magnetic plate is connected to the outer side of the groove through magnetic attraction. The middle part of the magnetic plate is set as a filter screen plate, and the filter screen plate is located in the empty groove. A displacement sensor is bonded to the lower surface of the filter screen plate. The displacement sensor is connected to the controller through a signal. The other end of the protective cover is connected to a connecting pipe for extracting flying dust generated by drilling.

7. The automated processing equipment for assembled household cabinets according to claim 1, characterized in that: The dust collecting mechanism includes a dust box installed on the upper surface of the top plate, a connecting pipe is connected to the lower portion of one side of the dust box, a fan is installed on the other side of the dust box, a filter plate is provided at the input end of the fan, the filter plate is installed in an empty slot opened on the other side of the dust box, a second motor is fixed to the outside of one end of the dust box, the output shaft of the second motor passes through the dust box and is connected to a cleaning brush, the cleaning brush is in contact with the filter plate, and is used to clean the filter plate.

8. A method for installing automated processing equipment for assembled household cabinets, characterized in that: The following steps are involved: Step 1: When installing the device, first place the home cabinet board on the support plate on the base, then start the electric push rod, which drives the splint to move. At this time, the dovetail slider and the dovetail slot cooperate to play a guiding and limiting role, so that the splint maintains linear movement; Step 2: until the rubber strip on the clamping plate contacts the edge of the plate, when the pressure sensor on the rubber strip detects the pressure threshold, the controller controls the electric push rod to stop driving, at this time, the four clamping plates cooperate to clamp the plate to a limit position, and the convex plate on the clamping plate supports the plate, and then the support plate is twisted, the support plate drives the movable rod to rotate, and the movable rod is transmitted to the inside of the fixed sleeve, so that the height of the support plate is reduced, which does not affect the punching of the middle part of the plate; Step 3: Then start the moving mechanism on the top plate, and the two horizontal and vertical linear guides on the moving mechanism drive the punching mechanism to move until the punching mechanism moves above the punching position. At this time, start the hydraulic push rod, and four synchronous hydraulic push rods drive the top plate to move downward, thereby driving the punching mechanism to move downward until the protective cover contacts the plate, and then start the first motor, which drives the drill bit to rotate and drill the plate. During this process, the protective cover is forced to move upward, causing the telescopic rod to be damaged. The spring inside the protective cover drives the protective cover to be pressed against the plate, and the displacement sensor on the filter screen plate can monitor the depth of the drilling in real time, and control the hydraulic push rod to rise and fall to a specific height through the controller, thereby improving the drilling accuracy of the device; Step 4: Start the fan on the dust box at the same time. The fan draws the flying dust in the protective cover into the dust box through the connecting pipe. At the same time, the outside air enters the protective cover through the filter plate to achieve gas circulation, preventing the flying dust in the protective cover from being drawn into the dust box. At the same time, start the second motor on the dust box. The second motor drives the cleaning brush to rotate to clean the flying dust attached to the filter plate to avoid clogging of the filter plate and does not affect the working efficiency of the fan.

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