CN221213090U - Device for removing dust on surface of printing paper - Google Patents

Abstract

The utility model discloses a device for removing dust on the surface of printing paper, which comprises a U-shaped mounting seat, wherein the top of the U-shaped mounting seat is fixedly connected with a mounting plate, printing paper is arranged in the U-shaped mounting seat, a first guide wheel is rotatably arranged on the inner wall of the right side of the U-shaped mounting seat, one end of the printing paper bypasses the right side of the first guide wheel and extends to the upper side of the mounting plate, the first guide wheel plays a guiding effect on the printing paper, and the left end of the printing paper extends to the left side of the U-shaped mounting seat. According to the utility model, through the arrangement of the brush rod, the brush hair, the extraction mechanism, the filtering mechanism and the fan, dust on the outer side of printing paper can be effectively cleaned in a friction wiping and extraction mode, the cleaning effect is improved, and through the arrangement of the thread driving mechanism and the guide mechanism, the positions of the brush rod and the brush hair can be vertically adjusted according to the use requirement, so that the frequency of wearing and replacing the brush hair and the brush rod for a long time is reduced.

Description

Device for removing dust on surface of printing paper

Technical Field

The utility model relates to the technical field of dust cleaning on the surface of printing paper, in particular to a device for cleaning dust on the surface of printing paper.

Background

Roll paper for rotary printing is characterized in that tiny particles, fibers, paper powder and the like are adhered to the surface of the roll paper, which is commonly called as paper powder in the printing industry, but dust on the roll paper not only affects the quality of printed matters, but also affects the printing work efficiency, and in order to reduce the influence of the dust on the roll paper on printing, the dust needs to be cleaned, for example, application number: 200720066337.8 relates to a device for removing dust on the surface of printing paper by using an air knife; the device mainly comprises a paper path inlet, a paper path outlet, a plurality of paper passing edits, a wind energy acting element wind knife, a dust collection device and a dust collection device, wherein the paper path inlet and the paper path outlet are used for printing paper to enter and exit;

The high-pressure fan and the conveying pipe are matched, dust on printing paper is removed in a gas suction mode, the dust which is firmly adhered to the printing paper is difficult to clean in a simple suction mode, the use requirement cannot be met, and the situation is fully met, so that a device for removing dust on the surface of the printing paper is provided.

Disclosure of utility model

The utility model aims to solve the defects in the prior art, and provides a device for removing dust on the surface of printing paper.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The device for removing dust on the surface of printing paper comprises a U-shaped mounting seat, wherein the top of the U-shaped mounting seat is fixedly connected with a mounting plate, printing paper is arranged in the U-shaped mounting seat, a first guide wheel is rotatably arranged on the inner wall of the right side of the U-shaped mounting seat, one end of the printing paper bypasses the right side of the first guide wheel and extends to the upper part of the mounting plate, the first guide wheel plays a guiding role on the printing paper, the left end of the printing paper extends to the left side of the U-shaped mounting seat, a collecting box with an opening is fixedly connected to the bottom and the right side on the inner wall of the bottom of the U-shaped mounting seat, a filtering mechanism is movably sleeved in the collecting box and matched with the collecting box for filtering and collecting dust, the right side of the filtering mechanism extends to the right side of the U-shaped mounting seat, a fan is embedded and fixed at the bottom of the U-shaped mounting seat, the top of the fan is an extraction end and is communicated with the bottom of the filtering mechanism, the inside of the filtering mechanism is sucked through the fan, the top and the bottom of the collecting box are communicated and fixed with the same suction mechanism, the extraction mechanism is positioned at the two sides, the top and the bottom of the printing paper, dust outside the printing paper is sucked through the suction mechanism, brush rods are arranged above and below the printing paper, a plurality of bristles are arranged on one side, close to each other, of the two brush rods, the brush rods are matched with the bristles and are used for friction wiping of the dust outside the printing paper, a screw thread driving mechanism is fixedly connected to one side, far away from each other, of the two brush rods and is used for driving the corresponding brush rods to vertically move, a U-shaped mounting seat and a mounting plate are respectively and rotatably sleeved on the corresponding screw thread driving mechanism, a guide mechanism is fixedly connected to the left side of the brush rods and plays a role in vertical guide for the corresponding brush rods, both guide mechanisms are fixedly connected with the left inner wall of the U-shaped mounting seat.

Preferably, the filtering mechanism comprises an L-shaped filter screen movably sleeved in the collecting box, the right side of the L-shaped filter screen is fixedly connected with a T-shaped mounting seat, the right side of the T-shaped mounting seat extends to the right side of the U-shaped mounting seat, the T-shaped mounting seat is magnetically attracted and fixed to the right side of the U-shaped mounting seat, the extraction end at the top of the fan is communicated and fixed with a first conical cover, the top of the first conical cover is movably contacted with the bottom of the L-shaped filter screen, and the L-shaped filter screen is used for filtering and shielding dust in extracted dust-containing gas.

Preferably, the extracting mechanism comprises a first communicating pipe communicated and fixed at the top of the collecting box, the bottom end of the first communicating pipe is provided with a conical structure, two sides of the printing paper are respectively provided with a suction pipe, one sides of the two suction pipes, which are close to each other, are respectively communicated and fixed with a second conical cover, the suction pipes are matched with the second conical covers and are used for sucking dust on two sides of the printing paper, the top ends and the bottom ends of the suction pipes are respectively provided with a blocking structure, the top ends of the two suction pipes are communicated and fixed with one U-shaped pipe, the communication between the two suction pipes is realized through the U-shaped pipe, the U-shaped pipe is positioned at the rear side of the printing paper, the bottom of the suction pipe positioned at the right side is communicated with the top end of the first communicating pipe, the top and the below of printing paper all are equipped with the front end and the rear end is the violently pipe of shutoff structure, one side that two violently manage and be close to each other all communicates and is fixed with a plurality of extraction pipes, a plurality of extraction pipes are located the top and the below of printing paper respectively, the extraction pipe is located the left side of the brush-holder stud that corresponds, violently manage and the extraction pipe that corresponds cooperate, be used for extracting the dust that rubs off, one side that two extraction pipes kept away from each other all communicates and is fixed with the L pipe, the right-hand member that is located the L pipe of top is fixed with the left side bottom intercommunication of the suction tube of left side, the right-hand member that is located the L pipe of below is established to toper structure and is fixed with the left side intercommunication of collecting box.

Preferably, the screw thread actuating mechanism includes the screw rod, the one end that two screw rods are close to each other respectively with one side fixed connection that two brush-holder stud kept away from each other, the bull stick is installed in the bottom inner wall of U-shaped mount pad and the bottom of mounting panel all rotates, bull stick thread bush is established on the screw rod that corresponds, the bull stick can drive the vertical removal of screw rod that corresponds when the bull stick pivoted, the one end that two bull sticks kept away from each other extends to the below and fixedly connected with knob of the top of mounting panel and U-shaped mount pad respectively.

Preferably, the guiding mechanism comprises a mounting block, the left side of the mounting block is fixedly connected with the left side inner wall of the U-shaped mounting seat, the left side of the brush rod is fixedly connected with an L-shaped guiding rod, the mounting block is slidably sleeved on the corresponding L-shaped guiding rod, and the L-shaped guiding rod is matched with the mounting block to achieve the effect of vertical guiding on the brush rod.

Preferably, the mounting holes are formed in the left side inner wall of the U-shaped mounting seat and the top of the mounting plate, two second guide wheels are rotatably mounted between the front side inner wall and the rear side inner wall of the mounting holes, printing paper is located between the two corresponding second guide wheels, and the second guide wheels play a guiding role on the printing paper.

Preferably, a first perforation is formed in the right inner wall of the U-shaped mounting seat, the first perforated inner wall is in movable contact with the outer side of the T-shaped mounting seat, two grooves are formed in the right side of the U-shaped mounting seat, a first magnet is fixedly connected to the inner wall of one side of the groove far away from the opening of the groove, a second magnet is fixedly connected to the top of the left side and the bottom of the left side of the T-shaped mounting seat, the left side of the second magnet extends into the corresponding groove and is adsorbed with the right side of the first magnet, the outer side of the second magnet is in movable contact with the inner wall of the corresponding groove, and the first magnet and the second magnet are matched, so that the T-shaped mounting seat can be quickly fixed.

Compared with the prior art, the utility model has the beneficial effects that:

The brush rod, the brush hair, the extraction mechanism, the filtering mechanism and the fan are matched, dust on the outer side of printing paper can be wiped and cleaned in a friction wiping and gas extraction mode, the cleaning effect is improved in a friction wiping mode, and the cleaned dust can be collected and taken out for cleaning by matching with the setting of the collecting box;

The thread driving mechanism is matched with the guide mechanism, so that the vertical positions of the brush rod and the brush hair can be adjusted according to the use condition, the situation that the brush hair is rubbed and cannot be contacted with printing paper well due to the fact that the brush hair is rubbed can be effectively reduced, and the replacement frequency of the brush hair and the brush rod can be reduced;

According to the utility model, through the arrangement of the brush rod, the brush hair, the extraction mechanism, the filtering mechanism and the fan, dust on the outer side of printing paper can be effectively cleaned in a friction wiping and extraction mode, the cleaning effect is improved, and through the arrangement of the thread driving mechanism and the guide mechanism, the positions of the brush rod and the brush hair can be vertically adjusted according to the use requirement, so that the frequency of wearing and replacing the brush hair and the brush rod for a long time is reduced.

Drawings

FIG. 1 is a schematic diagram of a device for cleaning dust on a surface of a printing sheet according to the present utility model;

fig. 2 is a schematic cross-sectional view of fig. 1.

In the figure: 100. a U-shaped mounting seat; 101. a mounting plate; 102. printing paper; 103. a first guide wheel; 1. a brush bar; 2. a screw; 3. a rotating rod; 4. a mounting block; 5. an L-shaped guide bar; 6. a transverse tube; 7. an L-shaped pipe; 8. a suction tube; 9. a second cone cover; 10. a U-shaped tube; 11. a collection box; 12. an L-shaped filter screen; 13. a T-shaped mounting seat; 14. a blower; 15. a first cone cover; 16. and (5) extracting the tube.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-2, a device for removing dust on the surface of printing paper comprises a U-shaped mounting seat 100, wherein a mounting plate 101 is fixedly connected to the top of the U-shaped mounting seat 100, printing paper 102 is arranged in the U-shaped mounting seat 100, a first guide wheel 103 is rotatably mounted on the inner wall of the right side of the U-shaped mounting seat 100, a supporting rod is fixedly connected to the inner wall of the right side of the U-shaped mounting seat 100, the first guide wheel 103 is rotatably mounted on the front side of the supporting rod, the first guide wheel 103 is rotatably mounted through the supporting rod, one end of the printing paper 102 bypasses the right side of the first guide wheel 103 and extends above the mounting plate 101, the left end of the printing paper 102 extends to the left side of the U-shaped mounting seat 100, mounting holes are formed in the inner wall of the left side of the U-shaped mounting seat 100 and the top of the mounting plate 101, two second guide wheels are rotatably mounted between the inner wall of the front side of the mounting hole and the inner wall of the rear side, the printing paper 102 is positioned between the two corresponding second guide wheels, and the second guide wheels and the first guide wheel 103 play a guiding role in cooperation with the printing paper 102;

The bottom and right side of the U-shaped installation seat 100 are fixedly connected with a collection box 11 with an opening, a filter mechanism is movably sleeved in the collection box 11, the right side of the filter mechanism extends to the right side of the U-shaped installation seat 100, the filter mechanism comprises an L-shaped filter screen 12 movably sleeved in the collection box 11, the front side and the rear side of the L-shaped filter screen 12 are respectively and movably contacted with the front side inner wall and the rear side inner wall of the collection box 11, the right side of the L-shaped filter screen 12 is fixedly connected with a T-shaped installation seat 13, the right side of the T-shaped installation seat 13 extends to the right side of the U-shaped installation seat 100, the T-shaped installation seat 13 is magnetically fixed on the right side of the U-shaped installation seat 100, a first through hole is formed in the right side inner wall of the U-shaped installation seat 100, the inner wall of the first through hole is movably contacted with the outer side of the T-shaped installation seat 13, two grooves are formed in the right side of the U-shaped installation seat 100, the inner wall of one side of the groove far away from the opening of the groove is fixedly connected with a first magnet, the top of the left side and the bottom of the left side of the T-shaped mounting seat 13 are fixedly connected with a second magnet, the left side of the second magnet extends into the corresponding groove and is adsorbed with the right side of the first magnet, the outer side of the second magnet is in movable contact with the inner wall of the corresponding groove, the first magnet and the second magnet are matched, the T-shaped mounting seat 13 can be quickly fixed, the bottom of the U-shaped mounting seat 100 is embedded and fixed with a fan 14, the bottom of the U-shaped mounting seat 100 is provided with an embedded groove, the inner wall of the embedded groove is fixedly connected with the outer side of the fan 14, the extracting end of the top of the fan 14 is fixedly connected with a first conical cover 15, the inner wall of the top of the embedded groove is provided with a first through hole, the inner wall of the first through hole is fixedly connected with the outer side of the first conical cover 15, the top of the first conical cover 15 is in movable contact with the bottom of the L-shaped filter screen 12, the L-shaped filter screen 12 is used for filtering and shielding dust in the extracted dust-containing gas;

The top and the bottom of the collecting box 11 are fixedly connected with the same suction mechanism, the suction mechanism is positioned at the two sides, the top and the bottom of the printing paper 102, wherein the suction mechanism comprises a first communication pipe which is fixedly connected at the top of the collecting box 11, the bottom end of the first communication pipe is in a conical structure, a second through hole is formed in the inner wall of the top of the collecting box 11, the inner wall of the second through hole is fixedly connected with the outer side of the first communication pipe, suction pipes 8 are respectively arranged at the two sides of the printing paper 102, one side, close to each other, of the two suction pipes 8 is fixedly connected with a second conical cover 9, the suction pipes 8 are matched with the second conical cover 9 and are used for sucking dust at the two sides of the printing paper 102, the top end and the bottom end of each suction pipe 8 are respectively in a plugging structure, the top of the two suction pipes 8 are fixedly connected with the same U-shaped pipe 10, a third through hole for installing the U-shaped pipe 10 is formed in the inner wall of the top of the suction pipe 8, the two suction pipes 8 are communicated through the U-shaped pipe 10, the U-shaped pipe 10 is positioned at the rear side of the printing paper 102, the bottom of the suction pipe 8 positioned at the right side is communicated with the top end of the first communication pipe, the inner wall of the bottom end of the suction pipe 8 positioned at the right side is provided with a fourth through hole for installing the first communication pipe, the upper side and the lower side of the printing paper 102 are respectively provided with a transverse pipe 6 with the front end and the rear end being of a plugging structure, one side of the two transverse pipes 6, which are close to each other, is respectively communicated and fixed with a plurality of extraction pipes 16, the plurality of extraction pipes 16 are respectively positioned above and below the printing paper 102, the extraction pipes 16 are positioned at the left side of the corresponding brush rod 1, the transverse pipes 6 are matched with the corresponding extraction pipes 16 for extracting dust rubbed off, one side, which is far away from each other, of the two extraction pipes 16 is respectively communicated and fixed with the L-shaped pipe 7, the right end of the upper L-shaped pipe 7 is fixedly communicated with the left bottom of the left suction pipe 8, a fifth through hole for installing the upper L-shaped pipe 7 is formed in the left inner wall of the left suction pipe 8, the right end of the lower L-shaped pipe 7 is of a conical structure and fixedly communicated with the left side of the collecting box 11, and a sixth through hole for installing the lower L-shaped pipe 7 is formed in the left inner wall of the collecting box 11;

The upper and lower sides of the printing paper 102 are respectively provided with brush rods 1, one sides of the two brush rods 1, which are close to each other, are respectively provided with a plurality of brush hairs, the brush rods 1 are matched with the brush hairs, the brush hairs are used for rubbing dust outside the printing paper 102, one sides of the two brush rods 1, which are far away from each other, are respectively fixedly connected with a threaded driving mechanism, a U-shaped mounting seat 100 and a mounting plate 101 are respectively rotatably sleeved on the corresponding threaded driving mechanism, wherein the threaded driving mechanism comprises a screw rod 2, one ends of the two screw rods 2, which are close to each other, are respectively fixedly connected with one sides of the two brush rods 1, which are far away from each other, a rotary rod 3 is respectively rotatably mounted on the bottom inner wall of the U-shaped mounting seat 100 and the bottom of the mounting plate 101, circular holes are respectively formed in the inner walls of the bottom of the U-shaped mounting seat 100, bearings are fixedly sleeved on the inner sides of the inner rings of the bearings and the corresponding rotary rods 3, the bearings play a role of rotatably mounting for rotatably mounting the corresponding rotary rods 3, the rotary rods 3 are sleeved on the corresponding screw rods 2, one ends of the two rotary rods 3, which are close to each other, are respectively provided with a threaded groove in threaded connection with the corresponding screw rods 2, and one end, which can be rotatably connected with the rotary rods 3, which can be vertically and respectively and fixedly connected with one end, which is far from each other by the rotary rod 3 through the corresponding groove, and the threaded groove, which is respectively;

The left side fixedly connected with guiding mechanism of brush-holder stud 1, two guiding mechanism all with the left side inner wall fixed connection of U-shaped mount pad 100, wherein guiding mechanism includes installation piece 4, the left side of installation piece 4 and the left side inner wall fixed connection of U-shaped mount pad 100, the left side fixedly connected with L-shaped guide bar 5 of brush-holder stud 1, the installation piece 4 slip cap is established on corresponding L-shaped guide bar 5, the guiding hole has been seted up at the top of installation piece 4, the inner wall of guiding hole and the outside sliding contact of corresponding L-shaped guide bar 5, L-shaped guide bar 5 and installation piece 4 cooperate, play vertical guide's effect to brush-holder stud 1, the utility model can clean up the dust outside printing paper 102 through the mode of friction wiping and drawing, improve the cleaning effect, and through screw thread actuating mechanism and guiding mechanism's setting, can carry out vertical regulation to brush-holder stud 1 and brush-holder stud 1's position according to the needs of using, thereby reduce the frequency of wearing and tearing of brush-holder stud 1 for a long time.

Working principle: when the device is used, when the external winding device winds the printing paper 102, the printing paper 102 moves between the two corresponding second guide wheels and on the right side of the first guide wheel 103, the top and the bottom of the printing paper 102 are respectively rubbed with corresponding bristles while the printing paper 102 moves, dust adhered on the surface of the printing paper 102 can be effectively wiped off under the friction force, the fan 14 is started while the friction wiping, the fan 14 sequentially sucks the first connecting pipe and the lower L-shaped pipe 7 through the first conical cover 15, the L-shaped filter screen 12 and the inside of the collecting box 11, the first connecting pipe sequentially sucks the upper transverse pipe 6 through the suction pipe 8 on the right side, the U-shaped pipe 10, the suction pipe 8 on the left side and the upper L-shaped pipe 7, the lower L-shaped pipe 7 sucks the inside of the lower transverse pipe 6, the transverse tube 6 sucks the left side of the brush rod 1 through a plurality of corresponding suction tubes 16, the wiped dust is sucked into the collecting box 11 under the suction force, the wiped printing paper 102 moves between the two second cone covers 9, the suction tube 8 sucks the dust on the printing paper 102 again through the corresponding second cone covers 9, the dust enters the collecting box 11 under the suction force, the dust-containing gas in the collecting box 11 passes through the L-shaped filter screen 12 and is discharged through the fan 14, the L-shaped filter screen 12 filters the dust in the gas in the L-shaped filter screen, the dust cleaning effect on the printing paper 102 is improved in a mode of wiping the printing paper 102, and the condition that the attached dust cannot be cleaned can be effectively avoided;

The collecting box 11 is matched with the L-shaped filter screen 12, so that cleaned dust is collected, when the L-shaped filter screen 12 is required to be moved out to the right for cleaning, the T-shaped mounting seat 13 is pulled to the right, the T-shaped mounting seat 13 drives the L-shaped filter screen 12 to move out from the collecting box 11 to the right, and the dust on the L-shaped filter screen 12 can be cleaned;

When wearing and tearing appear using the brush hair for a long time, can cause brush hair and printing paper 102 can not effectual laminating, but just forward rotation knob drives corresponding bull stick 3 rotation immediately, under the screw groove effect of seting up on corresponding bull stick 3, bull stick 3 rotation drives the direction removal of corresponding screw rod 2 to being close to printing paper 102, screw rod 2 drives the brush-holder stud 1 that corresponds and removes, brush-holder stud 1 drives the L shape guide bar 5 that corresponds and slides in installation piece 4, brush-holder stud 1 drives a plurality of brush hair that correspond and moves to when contact with printing paper 102, stop rotating the knob, can continue to carry out dust operation to printing paper 102 through the brush hair, and the position adjustable mode of brush hair reduces the frequency of follow-up change.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (7)

1. The utility model provides a clear away device of printing paper surface dust, includes U-shaped mount pad (100), the top fixedly connected with mounting panel (101) of U-shaped mount pad (100), be equipped with printing paper (102) in U-shaped mount pad (100), a serial communication port, rotate on the right side inner wall of U-shaped mount pad (100) and install first leading wheel (103), the one end of printing paper (102) is walked around the right side of first leading wheel (103) and is extended to the top of mounting panel (101), the left end of printing paper (102) extends to the left side of U-shaped mount pad (100), fixedly connected with bottom and right side are collection box (11) that the opening set up on the bottom inner wall of U-shaped mount pad (100), collection box (11) inner movable sleeve is equipped with filter media, the right side of filter media extends to the right side of U-shaped mount pad (100), the bottom of U-shaped mount pad (100) is inlayed and is fixed with fan (14), the top of fan (14) is the extraction end and is linked together with filter media's bottom, the top of collection box (11) and bottom intercommunication are equipped with brush hair-brushing mechanism (1) and one side that are located on the top and two sides of printing brush (1) are kept away from each other, brush (1) are equipped with the brush hair side respectively, brush hair respectively on one side is kept away from each other and two sides is equipped with brush hair on the bottom (1) and one side is kept away from each other, the U-shaped mounting seat (100) and the mounting plate (101) are respectively sleeved on the corresponding screw thread driving mechanisms in a rotating mode, the left side of the brush rod (1) is fixedly connected with a guiding mechanism, and the two guiding mechanisms are fixedly connected with the left inner wall of the U-shaped mounting seat (100).

2. The device for removing dust on the surface of printing paper according to claim 1, wherein the filtering mechanism comprises an L-shaped filter screen (12) movably sleeved in the collecting box (11), a T-shaped mounting seat (13) is fixedly connected to the right side of the L-shaped filter screen (12), the right side of the T-shaped mounting seat (13) extends to the right side of the U-shaped mounting seat (100), the T-shaped mounting seat (13) is magnetically fixed to the right side of the U-shaped mounting seat (100), a first conical cover (15) is fixedly communicated with the extraction end at the top of the fan (14), and the top of the first conical cover (15) is movably contacted with the bottom of the L-shaped filter screen (12).

3. The device for removing dust on the surface of printing paper according to claim 2, wherein the extracting mechanism comprises a first communicating pipe communicated and fixed at the top of the collecting box (11), the bottom end of the first communicating pipe is provided with a conical structure, two sides of the printing paper (102) are respectively provided with an extracting pipe (8), one side, close to each other, of the two extracting pipes (8) is respectively communicated and fixed with a second conical cover (9), the top end and the bottom end of the extracting pipe (8) are respectively provided with a plugging structure, the top ends of the two extracting pipes (8) are communicated and fixed with the same U-shaped pipe (10), the U-shaped pipe (10) is positioned at the rear side of the printing paper (102), the bottom parts of the extracting pipes (8) positioned at the right side are communicated with the top ends of the first communicating pipe, the upper side and the lower side of the printing paper (102) are respectively provided with a transverse pipe (6) with a front end and a rear end of the plugging structure, one side, close to each other, of the two transverse pipes (6) are respectively positioned above and below the printing paper (102), the extracting pipes (16) are respectively positioned at the upper side and the lower side of the corresponding extracting pipe (16) on the left side (7) of the left side (7) and the left side (7) of the left side (1) are positioned at the left side (7) and the left side (7) are respectively communicated and fixed with each other, the right end of the L-shaped pipe (7) positioned below is provided with a conical structure and is communicated and fixed with the left side of the collecting box (11).

4. A device for removing dust on the surface of printing paper according to claim 3, characterized in that the screw driving mechanism comprises screw rods (2), one ends of the two screw rods (2) close to each other are fixedly connected with one sides of the two brush rods (1) far away from each other respectively, the bottom inner wall of the U-shaped mounting seat (100) and the bottom of the mounting plate (101) are both rotatably provided with rotating rods (3), the rotating rods (3) are sleeved on the corresponding screw rods (2) in a threaded manner, and one ends of the two rotating rods (3) far away from each other extend to the upper part of the mounting plate (101) and the lower part of the U-shaped mounting seat (100) respectively and are fixedly connected with knobs.

5. The device for removing dust on the surface of printing paper according to claim 4, wherein the guiding mechanism comprises a mounting block (4), the left side of the mounting block (4) is fixedly connected with the left inner wall of the U-shaped mounting seat (100), the left side of the brush rod (1) is fixedly connected with an L-shaped guiding rod (5), and the mounting block (4) is slidably sleeved on the corresponding L-shaped guiding rod (5).

6. The device for removing dust on the surface of printing paper according to claim 1, wherein the left side inner wall of the U-shaped mounting seat (100) and the top of the mounting plate (101) are provided with mounting holes, two second guide wheels are rotatably mounted between the front side inner wall and the rear side inner wall of the mounting holes, and the printing paper (102) is located between the two corresponding second guide wheels.

7. The device for removing dust on the surface of printing paper according to claim 2, wherein a first perforation is formed on the right inner wall of the U-shaped mounting seat (100), the inner wall of the first perforation is movably contacted with the outer side of the T-shaped mounting seat (13), two grooves are formed on the right side of the U-shaped mounting seat (100), a first magnet is fixedly connected to the inner wall of one side of the groove far away from the opening of the groove, a second magnet is fixedly connected to the top and the bottom of the left side of the T-shaped mounting seat (13), the left side of the second magnet extends into the corresponding groove and is adsorbed with the right side of the first magnet, and the outer side of the second magnet is movably contacted with the inner wall of the corresponding groove.