CN113290659A

CN113290659A - Dust removing system for furniture coating

Info

Publication number: CN113290659A
Application number: CN202110560941.0A
Authority: CN
Inventors: 陈亮
Original assignee: Chongqing Union Industry Co ltd
Current assignee: Chongqing Union Industry Co ltd
Priority date: 2021-05-19
Filing date: 2021-05-19
Publication date: 2021-08-24
Anticipated expiration: 2041-05-19
Also published as: CN113290659B

Abstract

The invention belongs to the field of furniture processing equipment, and particularly relates to a dust removing system for furniture coating, which comprises: the device comprises a device body, a scraper, an electromagnet, a second magnet, a first conveyor belt, a first suction blower, a first air pipe, a second suction blower, a second air pipe and a dust collection box. The first suction blower is communicated with the first air pipe. The second suction blower is communicated with the second air pipe. The second air pipe and the first air pipe are communicated with the dust collection box through a funnel, one end with a large diameter of the funnel is communicated with the first air pipe and the second air pipe, and one end with a small diameter of the funnel is communicated with the dust collection box. Be equipped with image recognition mechanism and PLC controller on the equipment body, the PLC controller inhales the hair-dryer through burr direction information control first and second to make the burr be and erect the state on the timber, the scraper is got rid of to the burr to the uncontrolled use again. This scheme makes burr on timber be the state of erectting, and the burr clearance is high-efficient clean, improves production efficiency.

Description

Dust removing system for furniture coating

Technical Field

The invention belongs to the field of furniture processing equipment, and particularly relates to a dust removing system for furniture coating.

Background

Furniture is an important industrial economy. However, in the furniture processing process, a large amount of dust and organic pollutants (benzene, toluene, formaldehyde and other organic pollutants) are generated in the cutting, planing, grinding, paint spraying and other process operations, the dust particles generated in different processing processes are different in size, most furniture production enterprises are directly discharged to the internal environment and the external environment without being collected, and fine dust and organic pollutants can carry germs and bacteria and float in the air for a long time, possibly enter the respiratory tract of a person and even lung tissues, and are greatly harmful to the human body; moreover, the organic pollutants in the waste water can directly harm the health of workers, and the direct discharge can also cause environmental pollution. The timber used for the furniture comprises pine, fir and other materials, and burrs are generated on the surface of the timber during the processing of the timber.

Application number is CN201811062315.3 file discloses a can prevent dust and improve spraying mechanism of timber surface spraying effect simultaneously, its structure includes integrated processing device, preceding mount, the feed chute, the organism, the curb plate, preceding mount rear side and organism bottom front side welding, the curb plate is installed inside organism bottom left side, organism middle-end front side is equipped with the feed chute, the preceding mount top is located to the feed chute, integrated processing device installs inside the organism, can inter attraction between the device magnet and the last magnet, when timber gets into equipment inside, magnet and last magnet can adsorb in ligneous upper and lower both sides, prior art utilizes magnet can prevent inside the dust entering equipment, can clear away when the granule that the protrusion came appears in the timber surface. There is the sculpture decoration in the customization furniture, and the plank that has the sculpture has the dust to pile up in the depressed place at the clearance in-process, and difficult clearance influences the japanning quality. Magnet can flatten the granule on the timber in the above-mentioned scheme, but the burr of timber surface part is not cleared up, and the burr can influence the japanning quality.

Disclosure of Invention

The scheme provides a dust removing system for furniture painting with good furniture painting quality.

In order to achieve the above object, the present invention provides a dust removing system for furniture painting, comprising: the device comprises a device body, a scraper, an electromagnet and a second magnet; the equipment body is provided with a feeding hole and a discharging hole; further comprising: the device comprises a first conveyor belt, a first conveyor roller driving the first conveyor belt to move, a first suction blower, a first air pipe, a second suction blower, a second air pipe and a dust collection box; the scraper is positioned above the first conveyor belt; the second magnet is positioned above the first conveyor belt and fixedly connected with the inner wall of the equipment body; the electromagnet is positioned below the first conveyor belt and is fixedly connected with the inner wall of the equipment body through a first spring; the first suction blower is arranged at the feeding port of the equipment body and is communicated with the first air pipe; the second air suction blower is arranged at the discharge port of the equipment body and communicated with a second air pipe; the second air pipe and the first air pipe are communicated with the dust collection box through a funnel, one end with the large diameter of the funnel is communicated with the first air pipe and the second air pipe, and the other end with the small diameter of the funnel is communicated with the dust collection box; the equipment body is provided with a PLC (programmable logic controller), the PLC is electrically connected with the image recognition mechanism, and the PLC is electrically connected with the first suction blower control switch, the second suction blower control switch and the scraper switch; an image recognition mechanism is arranged at the feeding port of the equipment body; the image recognition mechanism is used for collecting and recognizing wood burr direction information and sending the information to the PLC.

The principle of the scheme is as follows: the power is started, the dust cleaning system starts to work, wood is placed into the dust cleaning system from the feeding port of the equipment body, the image recognition mechanism shoots and collects wood pictures, and then wood burr directions are recognized and wood feeding direction information is sent to the PLC. When the PLC receives information that the burr direction is positive, the PLC controls a second suction blower to blow air to the wood, so that burrs on the wood are in a vertical state, the PLC controls a scraper to be opened, the scraper rotates, the wood is in contact with the scraper under the action of a conveyor belt, the scraper rotates to remove the burrs on the wood, meanwhile, the PLC controls a first suction blower to suck air, and the first suction blower removes dust on the wood; when the PLC controller received the burr direction for reverse information, the PLC controller controlled first inhale the hair dryer and blown to timber, made on the timber burr be and erect the state, the scraper was opened in the PLC controller control, made the scraper rotate, timber contacts with the scraper under the conveyer belt effect, burr on the rotatory timber of cleaing away of scraper, and the hair dryer is inhaled to PLC controller control second simultaneously, and the second inhales the hair dryer and clears away the dust of absorption on the timber.

The scheme has the beneficial effects that: the image recognition mechanism is used for judging the wood placing direction, the PLC starts the air suction or blowing functions of the first air suction blower and the second air suction blower according to the burr direction, so that burrs on the wood are in a vertical state, a scraper is convenient to clean the burrs on the wood, the wood is cleaned efficiently and cleanly, the wood painting quality is better and the efficiency is high, and the furniture production efficiency is improved; can inhale the hair-dryer or the second through setting up the funnel can be when changing the state of blowing, can not make in the dust collecting box dust blow to timber along with the air current, make timber clearance more high-efficient, make furniture production efficiency improve.

Further, a second conveyor belt and a second conveyor roller for driving the second conveyor belt to rotate are arranged in the equipment body; the second conveyor belt position is matched with the first conveyor belt position; an electromagnet control switch is arranged on the second conveyor belt; a fixed rod is fixedly connected to the inner wall of the equipment body, and a lever is hinged to the fixed rod; one end of the lever is fixedly connected with the electromagnet, and the other end of the lever is fixedly connected with the movable block; the movable block is positioned between the first conveyor belt and the second conveyor belt.

When timber is located first conveyer belt, electro-magnet and second magnet inter attraction, second magnet attraction electro-magnet, make the movable block downstream, do not influence on timber moves to the second conveyer belt from first conveyer belt, when timber moves to the second conveyer belt from first conveyer belt, timber extrusion electro-magnet control switch, make the change of current direction on the electro-magnet, electro-magnet and second electro-magnet repel each other, make the electro-magnet repel first spring downwards, make the movable block rebound, thereby timber vibration, make the sunken dust of timber in remove to the timber surface, dust clearance is cleaner on the messenger timber.

Furthermore, anti-blocking mechanisms are arranged in the first air pipes and comprise filter screens and second springs; the two ends of the filter screen are arranged on the inner wall of the first air pipe in a sliding mode, and the filter screen is fixedly connected with the inner wall of the first air pipe through a second spring. The filter screen can prevent that first trachea from being stopped up, when inhaling the hair-dryer and starting, the filter screen can shake under the second spring action, can shake off the dust on the filter screen.

Furthermore, an opening is formed in the side wall of the first air pipe and is positioned at the lower end of the filter screen; the opening is communicated with a collecting box through a funnel, one end with a large diameter of the funnel is communicated with the opening, and one end with a small diameter of the funnel is communicated with the collecting box. This prevents the dust in the collection box from being blown onto the wood when the suction blower blows air.

Further, the filter screen is the slope form. The inclined shape of the filter screen can reduce dust staying on the filter screen. Prevent that the suction blower from blowing the dust on the filter screen to the wood when blowing.

Further, the image recognition mechanism is located within the device body; an airflow separation mechanism is arranged in the first air pipe; the airflow separation mechanism comprises a partition plate and a water spraying pipe; the baffle plate is obliquely arranged on the side wall of the first air pipe and divides the first air pipe into an upper air passage and a lower air passage; a second baffle is hinged on the side wall of the upper air flue, and a second filter screen and a second limiting block for limiting the second baffle to move in the direction far away from the first suction blower are respectively arranged at two ends of the second baffle; the second limiting block is fixedly connected with the partition plate; the second filter screen is fixedly connected with the side wall of the upper air passage and is positioned at one end higher than the partition plate; a first baffle is hinged on the side wall of the lower air passage, and a first filter screen and a first limiting block for limiting the first baffle to move towards the first suction blower are respectively arranged at two ends of the first baffle; the first limiting block is fixedly connected with the partition plate; the first filter screen is fixedly connected with the side wall of the lower air passage and is positioned at one end of the lower part of the partition board; a water spray pipe is arranged in the upper air passage, the opening of the water spray pipe is positioned at the upper end of the second filter screen, and a water valve is arranged at the opening of the water spray pipe; the water valve switch is electrically connected with the PLC.

The first baffle and the first limiting block act mutually, and the upper airway can only admit air and can not exhaust air. The second baffle and the second limiting block act mutually, and the lower air passage can only exhaust air and can not intake air. When the first suction blower sucks air, dust in the equipment body is discharged from the lower air passage, the dust in the air flow is adhered to the first filter screen to prevent the dust from diffusing to the outside, meanwhile, the PLC opens the water valve to wash the first filter screen and the second filter screen to prevent the dust from entering the equipment body from the second filter screen, and the water valve is closed after the set time; when first suction blower blows, the air current blows to this internal, and the air current gets into this internal from the upper airway equipment, through the second filter screen before the entering, and the second filter screen filters dust in the air current, prevents that the dust from entering into this internal from the external world.

Further, be equipped with pressure sensor on the first filter screen, pressure sensor is connected with the PLC controller electricity.

Pressure sensor detects first filter screen weight change, when filter screen weight exceeded the setting value, made the PLC controller open the water valve, made the spray pipe normal water flow out wash the second filter screen, on water entered into the baffle from the second filter screen, water washed first filter screen from the slope baffle flows down to clean first filter screen and second filter screen, prevent that the dust from entering into this internally along with the air current.

Drawings

Fig. 1 is a schematic structural view of wood not moving onto the second conveyor in embodiment 1 of the present invention.

Fig. 2 is a schematic structural view of wood moving onto a second conveyor in example 1 of the present invention.

Fig. 3 is a sectional view of an air tube according to embodiment 1 of the present invention.

Fig. 4 is a sectional view of an air tube according to embodiment 2 of the present invention.

Detailed Description

The following is further detailed by the specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a device body 1, a first conveying roller 2, a first conveying belt 3, a scraper 4, a fixing rod 5, a lever 6, an electromagnet 7, a first spring 8, a second magnet 9, a movable block 10, a second conveying roller 11, a second conveying belt 12, a first blowing and sucking fan 13, a first air pipe 14, an electromagnet control switch 15, a filter screen 16, a second spring 17, an opening 18, a collecting box 19, a second blowing and sucking machine 20, a second air pipe 21, a first baffle 22, a first limiting block 23, a first filter screen 24, a pressure sensor 25, a second baffle 26, a second limiting block 27, a second filter screen 28, a water spraying pipe 29 and a partition plate 30.

Example 1:

as shown in attached figures 1 and 2, the dust removing system for furniture coating comprises an equipment body 1, a PLC (programmable logic controller) and an image recognition mechanism, wherein the equipment body 1 is provided with a feeding hole and a discharging hole, the image recognition mechanism is installed at the feeding hole of the equipment body 1, the image recognition mechanism is electrically connected with the PLC, a power supply is arranged on the equipment body 1, and the PLC and the image recognition mechanism are electrically connected with the power supply. The image recognition mechanism comprises a camera and an image recognition module, the camera is used for shooting wood pictures and sending information to the image recognition module, the image recognition module is used for recognizing the direction of wood burr feeding and sending the direction information to the PLC, and the PLC receives the direction information and then works next step.

The feed inlet of the equipment body 1 is provided with a first conveying roller 2 and a first conveying belt 3, a motor for driving the first conveying roller 2 to rotate is arranged in the equipment body 1, the first conveying roller 2 rotates to drive the first conveying belt 3 to move, wood is placed on the first conveying belt 3, and the first conveying belt 3 moves the wood. The discharge gate department of equipment body 1 is equipped with second transfer roller 11 and second conveyer belt 12, is equipped with the motor that drives 11 pivoted of second transfer roller in the equipment body 1, and 11 rotations of second transfer roller drive second conveyer belt 12 and remove, and first conveyer belt 3 positions cooperate with second conveyer belt 12 positions, and first conveyer belt 3 is at same height with second conveyer belt 12. A first suction and blowing machine 13 and a first air pipe 14 are arranged at the feeding port of the equipment body 1, and the first suction and blowing machine 13 is communicated with the first air pipe 14. The device comprises a device body 1 and is characterized in that a second air suction blower 20 and a second air pipe 21 are arranged at a discharge port of the device body 1, the second air suction blower 20 is communicated with the second air pipe 21, a dust collection box is arranged on the device body 1, a first feed port and a second feed port are arranged on the dust collection box, the first air pipe 14 is communicated with the first feed port, the second air pipe 21 is communicated with the second feed port, a funnel is arranged at the first feed port and the second feed port, one end with a large funnel diameter is communicated with the first air pipe 14 and the second air pipe 21 respectively, and one end with a small funnel diameter is communicated with the first feed port and the second feed port respectively. The funnel can make the dust easily enter into the dust collecting box, and the dust is difficult to follow the dust collecting box effluvium. The first suction blower 13 is identical in structure to the second suction blower 20.

Be equipped with scraper 4 in the equipment body 1, scraper 4 is located 3 tops of first conveyer belt, and 4 switches of scraper with be connected when the PLC controller electricity, and scraper 4 rotates the burr of cleaing away on the timber. The control switch of the first suction and blowing machine 13 and the control switch of the second suction and blowing machine 20 are electrically connected with the PLC controller, when the PLC controller receives the information that the burr direction is positive, the PLC controller controls the second suction and blowing machine 20 to blow air to the wood to enable burrs on the wood to be in a vertical state, the PLC controller controls the first suction and blowing machine 13 to suck air, the first suction and blowing machine 13 removes dust on the wood, the wood is contacted with the scraper 4 under the action of the conveyor belt, and the scraper 4 rotates to remove the burrs on the wood; when the PLC controller received the burr direction for reverse information, PLC controller control first 13 that inhale the hair-dryer blows to timber, make the burr be the state of erectting on the timber, PLC controller control second inhales hair-dryer 20 and breathes in, scraper 4 is opened in PLC controller control, makes scraper 4 rotate, timber under the conveyer belt effect with scraper 4 contact, burr on the timber is clear away in the 4 rotations of scraper, timber japanning quality is better and efficient, improvement furniture production efficiency.

As shown in fig. 3, an anti-blocking mechanism is arranged in the first air pipe 14, the anti-blocking mechanism includes a filter screen 16 and a second spring 17, the filter screen 16 is slidably disposed on the inner wall of the first air pipe 14, the filter screen 16 is welded and fixed with the inner wall of the air pipe through the second spring 17, the filter screen 16 can prevent the first air pipe 14 from being blocked, and when the first air suction blower 13 is started, the filter screen 16 can shake under the action of the second spring 17 to shake off dust on the filter screen 16. The inclined shape of the filter screen 16 can reduce dust staying on the filter screen 16, and prevent the dust on the filter screen 16 from blowing to the wood when the first suction and blowing machine 13 blows. Be equipped with opening 18 on the first trachea 14, opening 18 is located the filter screen 16 lower extreme, is equipped with collecting box 19 on the equipment body 1, and collecting box 19 passes through funnel and opening 18 intercommunication, and the one end and the opening 18 intercommunication that the funnel diameter is big, and the one end and the collecting box 19 intercommunication that the funnel diameter is little can prevent like this that first suction blower from blowing, on blowing the timber with the dust in the collecting box 19, make the timber clearance more efficient. The first air pipe 14 has the same structure as the second air pipe 21.

And a second magnet 9 and an electromagnet 7 are arranged on the equipment body 1, the second magnet 9 is positioned above the first conveyor belt 3, and the second magnet 9 and the equipment body 1 are welded together. The electromagnet 7 is located below the first conveyor belt 3, the electromagnet 7 is fixedly connected with the inner wall of the equipment body 1 through a first spring 8, a fixing rod 5 is arranged between the first conveyor belt 3 and the second conveyor belt 12, the fixing rod 5 is fixedly welded on the inner wall of the equipment body 1, a lever 6 is hinged to the fixing rod 5, one end of the lever 6 is welded with the electromagnet 7, and a movable block 10 is welded at the other end of the lever. The second conveyor belt 12 is provided with an electromagnet control switch 15, the electromagnet control switch 15 is used for controlling the current direction of the electromagnet 7 and changing the magnetic pole of the electromagnet 7, and initially, the electromagnet 7 and the second magnet 9 attract each other, the second magnet 9 attracts the electromagnet 7, the movable block 10 moves downwards, the wood does not influence the movement of the wood from the first conveyor belt 3 to the second conveyor belt 12, the wood passes through the magnets, the magnets can prevent dust from diffusing in the equipment body 1, when the wood moves from the first conveyor belt 3 to the second conveyor belt 12, the wood presses the electromagnet control switch 15, so that the current direction on the electromagnet 7 is changed, the electromagnet 7 is repelled with the second electromagnet 7, the electromagnet 7 is repelled downwards to the first spring 8, the movable block 10 moves upwards, thereby make timber vibration, make the dust in the timber sunken remove to the timber surface, make the dust clearance cleaner on the timber.

The operation method of the scheme comprises the following steps: the start power supply, make dust clearance system start work, put into timber from 1 feed inlet department of equipment body, the ligneous picture is shot to the camera, the orientation of burr is judged and burr direction information is sent to the PLC controller to the ligneous picture of image recognition module discernment, when the PLC controller received the burr orientation and is forward information, PLC controller control second is inhaled hair-dryer 20 and is blown to timber, make on the timber burr be the state of erectting, PLC controller control opens scraper 4, make scraper 4 rotate, timber contacts with scraper 4 under the conveyer belt effect, burr on the timber is clear away in the 4 rotations of scraper, filter screen 16 is under first spring 8 and air current effect in the second trachea 21, the dust on the filter screen 16 is shaken off, prevent that the dust from being blown to the timber on the filter screen 16. Meanwhile, the PLC controls the first suction blower 13 to suck air, and the first suction blower 13 removes dust on the sucked wood; when the PLC controller received the burr direction for reverse information, PLC controller control first suction blower 13 blows to timber, make on the timber burr be the state of erectting, PLC controller control opens scraper 4, make scraper 4 rotate, timber contacts with scraper 4 under the conveyer belt effect, burr on the rotatory timber of cleaing away of scraper 4, filter screen 16 is under first spring 8 and air current effect in the first trachea 14, dust on the filter screen 16 is shaken off, prevent that dust from being blown to the timber on the filter screen 16, PLC controller control second suction blower 20 inhales simultaneously. When timber is located first conveyer belt 3, electro-magnet 7 and second magnet 9 inter attraction, second magnet 9 attracts electro-magnet 7, make movable block 10 downstream, do not influence timber and remove to second conveyer belt 12 from first conveyer belt 3 on, timber passes through from between the magnet, magnet can prevent that the dust from diffusing in equipment body 1, when timber moves to second conveyer belt 12 from first conveyer belt 3 on, timber extrusion electro-magnet control switch 15, make the change of current direction on the electro-magnet 7, electro-magnet 7 repels with second electro-magnet 7 mutually, make electro-magnet 7 repulse first spring 8 downwards, make movable block 10 upstream, thereby the timber vibrates, make the sunken interior dust of timber remove to the timber surface. The scheme can be used for cleaning burrs on the wood, the efficiency of cleaning the wood is higher, the wood does not need to be cleaned again, and the production efficiency of furniture is improved; can make timber vibration clear away the dust of sculpture timber depressed place, make timber clearance cleaner, make the japanning quality better.

Example 2:

the difference with embodiment 1 lies in that image recognition mechanism sets up in equipment body 1, after the plank got into the conveyer belt, image recognition mechanism discerned that there is the plank to enter into equipment body 1, image recognition mechanism sends plank information PLC controller, the PLC controller starts first suction blower 13 and second suction blower 20, make first suction blower 13 and second suction blower 20 inhale simultaneously, be the negative pressure state in making equipment body 1, make the burr on the timber erect, rethread image recognition mechanism judges that there is the burr on the timber to erect, direct transmission is then erected to nothing, do not start scraper 4. If burrs exist on the wood, the scraper 4 is started to clean the burrs, and the first suction blower and the second suction blower 20 are controlled simultaneously to enable the interior of the equipment body 1 to be in a negative pressure state, so that the burrs on the wood can be judged, the burrs of each piece of wood do not need to be cleaned, and the production efficiency of furniture is improved; meanwhile, burrs can be erected better, and the burr cleaning effect is better.

As shown in fig. 4, an airflow separation mechanism is arranged in the first air pipe 14, the airflow separation mechanism includes a partition plate 30, the partition plate 30 separates the first air pipe 14 into an upper air passage and a lower air passage, the partition plate 30 is welded to two ends of the side wall of the air pipe, the partition plate 30 is obliquely arranged in the air pipe, the left end of the partition plate 30 is lower than the right end, the right end of the partition plate 30 is close to the first suction and blowing machine 13, and the left end of the partition plate 30 is far away from the first suction and blowing machine 13. Articulated on the lower airway lateral wall have first baffle 22, be equipped with on the baffle 30 and be used for restricting first baffle 22 to the first stopper 23 of equipment body internal direction removal, first stopper 23 and baffle 30 welding are in the same place, and first stopper 23 is located first baffle 22 right-hand member, and first stopper 23 and first baffle 22 can prevent that the air current from entering into equipment body 1 from the lower airway. Be equipped with first filter screen 24 on the lower air flue lateral wall, first filter screen 24 is located first baffle 22 left end, first filter screen 24 one end and lower air flue lateral wall bolt fixed connection, and first filter screen 24 is located the one end department that baffle 30 is low. An opening 18 is arranged on the first air pipe, the opening 18 is positioned at the lower end of the first filter screen 24, the equipment body 1 is provided with a collecting box 19, and the collecting box 19 is communicated with the opening 18 through a pipeline. Pressure sensor 25 has been placed on first filter screen 24, and pressure sensor 25 is used for detecting first filter screen 24 weight change, and pressure sensor 25 is connected with the PLC controller electricity.

Articulated on the upper airway lateral wall have second baffle 26, be equipped with on the baffle 30 and be used for restricting second baffle 26 to keeping away from the second stopper 27 that equipment body 1 direction removed, second stopper 27 and baffle 30 welding are in the same place, and second stopper 27 is located second baffle 26 left end, and second stopper 27 and second baffle 26 can prevent that the air current from discharging outside equipment body 1 from the upper airway. The upper airway lateral wall is equipped with second filter screen 28, and second filter screen 28 one end and upper airway lateral wall bolt fixed connection, second filter screen 28 are located the second baffle 26 right-hand member, and second filter screen 28 is located the high one end of baffle. A spray pipe 29 is arranged in the upper air flue, and the opening of the spray pipe 29 is positioned at the upper end of the second filter screen 28. A water valve is arranged at the opening of the spray pipe 29, and a water valve switch is electrically connected with the PLC. The first air pipe 14 has the same structure as the second air pipe 21.

The first baffle 22 and the first limiting block 23 are in interaction, and the upper airway can only intake air and can not exhaust air. The second baffle 26 and the second limiting block 27 act together, and the lower air duct can only exhaust air and cannot intake air. When the suction blower sucks air, dust in the equipment body 1 is discharged from the lower air passage, the dust in the air flow is adhered to the first filter screen 24, the dust is prevented from being diffused to the outside, meanwhile, the PLC opens the water valve, the first filter screen and the second filter screen 28 of the first filter screen 24 are washed, the dust is prevented from entering the equipment body 1 from the second filter screen 28, and the water valve is closed after the set time; when the first suction blower 13 or the second suction blower 20 blows air, the air flow blows into the device body 1, enters the device body 1 from the upper air passage, passes through the second filter screen 28 before entering, and the second filter screen 28 filters dust in the air flow to prevent the dust from entering the device body 1 from the outside. When the PLC controller control changes the blower of inhaling and blows in to equipment body 1, the PLC controller opens the water valve simultaneously, washes first filter screen 24 and second filter screen 28, prevents that the dust from entering into equipment body 1 from second filter screen 28 in, closes the water valve after the settlement time. Pressure sensor 25 detects the weight change of first filter screen 24, and when filter screen 16 weight exceeded the setting value, made the PLC controller open the water valve, made the water outflow wash second filter screen 28 in spray pipe 29, water enters into the baffle on second filter screen 28, and water flows down from the slope baffle and washs first filter screen 24 to clean first filter screen 24 and second filter screen 28, prevent that the dust from entering into in the equipment body 1 along with the air current.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. A dust removal system for furniture painting comprising: the device comprises a device body (1), a scraper (4), an electromagnet (7) and a second magnet (9); the equipment body (1) is provided with a feeding hole and a discharging hole; it is characterized by also comprising: the device comprises a first conveyor belt (3), a first conveyor roller (2) driving the first conveyor belt (3) to move, a first suction blower (13), a first air pipe (14), a second suction blower (20), a second air pipe (21) and a dust collection box;

the scraper (4) is positioned above the first conveyor belt (3); the second magnet (9) is positioned above the first conveyor belt (3) and is fixedly connected with the inner wall of the equipment body (1); the electromagnet (7) is positioned below the first conveyor belt (3), and the electromagnet (7) is fixedly connected with the inner wall of the equipment body (1) through a first spring (8);

the first suction blower (13) is arranged at a feed inlet of the equipment body (1), and the first suction blower (13) is communicated with a first air pipe (14); the second air suction and blowing machine (20) is arranged at the discharge port of the equipment body (1), and the second air suction and blowing machine (20) is communicated with a second air pipe (21); the second air pipe (21) and the first air pipe (14) are communicated with the dust collection box through a funnel, one end with a large diameter of the funnel is communicated with the first air pipe (14) and the second air pipe (21), and one end with a small diameter of the funnel is communicated with the dust collection box;

the equipment body (1) is provided with a PLC (programmable logic controller), the PLC is electrically connected with the image recognition mechanism, and the PLC is electrically connected with a control switch of the first suction blower (13), a control switch of the second suction blower (20) and a switch of the scraper (4); an image recognition mechanism is arranged at the feed inlet of the equipment body (1); the image recognition mechanism is used for collecting and recognizing wood burr direction information and sending the information to the PLC.

2. A dust removal system for furniture painting according to claim 1, characterized in that: a second conveyor belt (12) and a second conveyor roller (11) for driving the second conveyor belt (12) to rotate are arranged in the equipment body (1); the position of the second conveyor belt (12) is matched with that of the first conveyor belt (3); an electromagnet control switch (15) is arranged on the second conveyor belt (12); a fixed rod (5) is fixedly connected to the inner wall of the equipment body (1), and a lever (6) is hinged to the fixed rod (5); one end of the lever (6) is fixedly connected with the electromagnet (7), and the other end of the lever (6) is fixedly connected with the movable block (10); the movable block (10) is positioned between the first conveyor belt (3) and the second conveyor belt (12).

3. A dust removal system for furniture painting according to claim 1, characterized in that: the first air pipes (14) are internally provided with anti-blocking mechanisms, and each anti-blocking mechanism comprises a filter screen (16) and a second spring (17); two ends of the filter screen (16) are slidably arranged on the inner wall of the first air pipe (14), and the filter screen (16) is fixedly connected with the inner wall of the first air pipe (14) through a second spring (17).

4. A dust removal system for furniture painting according to claim 3, wherein: an opening (18) is formed in the side wall of the first air pipe (14), and the opening (18) is located at the lower end of the filter screen (16); the opening (18) is communicated with a collecting box (19) through a funnel, one end with a large diameter of the funnel is communicated with the opening (18), and one end with a small diameter of the funnel is communicated with the collecting box (19).

5. A dust removal system for furniture painting according to claim 3, wherein: the filter screen (16) is inclined.

6. A dust removal system for furniture painting according to claim 1, characterized in that: the image recognition mechanism is positioned in the equipment body (1); an airflow separation mechanism is arranged in the first air pipe (14); the airflow separation mechanism comprises a clapboard (30) and a water spray pipe (29); the baffle plate (30) is obliquely arranged on the side wall of the first air pipe (14), and the baffle plate (30) divides the first air pipe (14) into an upper air passage and a lower air passage;

a second baffle (26) is hinged to the side wall of the upper air flue, and a second filter screen (28) and a second limiting block (27) for limiting the second baffle (26) to move towards the direction away from the first suction blower (13) are respectively arranged at two ends of the second baffle (26); the second limiting block (27) is fixedly connected with the partition plate (30); the second filter screen (28) is fixedly connected with the side wall of the upper air flue, and the second filter screen (28) is positioned at one end with the height of the partition plate (30);

a first baffle (22) is hinged to the side wall of the lower air flue, and a first filter screen (24) and a first limiting block (23) for limiting the first baffle (22) to move towards the first suction blower (13) are respectively arranged at two ends of the first baffle (22); the first limiting block (23) is fixedly connected with the clapboard (30); the first filter screen (28) is fixedly connected with the side wall of the lower air flue, and the first filter screen (28) is positioned at one end of the lower part of the partition plate (30);

a water spray pipe (29) is arranged in the upper air passage, the opening of the water spray pipe (29) is positioned at the upper end of the second filter screen (28), and a water valve is arranged at the opening of the water spray pipe (29); the water valve switch is electrically connected with the PLC.

7. The dust removal system for furniture painting of claim 6, wherein: and a pressure sensor (25) is arranged on the first filter screen (24), and the pressure sensor (25) is electrically connected with the PLC.