A paper surface dusting pre-treatment device

Abstract

The utility model relates to a paper surface dust removal pretreatment device relates to the technical field of printing equipment, it includes frame, conveying mechanism and dust removal mechanism, conveying mechanism includes first conveying assembly, and first conveying assembly bag first mounting bracket, first conveying roller and first motor, and first mounting bracket fixed mounting is in the frame, and a plurality of first conveying rollers are opposite rotation and are installed on the first mounting bracket, and first conveying roller is provided with multiple groups along the paper conveying direction, and first motor is installed on the first mounting bracket, and first motor drives first conveying roller rotation, dust removal mechanism includes dust absorption board and dust absorption pipe, and dust absorption board fixed mounting is in the first mounting bracket, and dust sweeping component includes dust sweeping board and dust blowing pipe, and dust sweeping board fixed mounting is in the first mounting bracket, and the export end of dust blowing pipe and dust sweeping board intercommunication, the utility model can improve the dust removal effect of paper surface.

Description

Technical Field

[0001] This utility model relates to the field of printing equipment, and in particular to a paper surface dust removal pretreatment device. Background Technology

[0002] In the printing, packaging, and paper product processing industries, paper is one of the main raw materials, and its surface cleanliness directly affects the quality and appearance of the final product. As market demands for product quality continue to rise, ensuring a dust-free paper surface has become particularly important.

[0003] However, during paper production and transportation, dust and fine particles inevitably adhere to the paper surface due to environmental factors or friction during operation. If these impurities are not treated, they will cause serious quality problems in subsequent printing, coating, or laminating processes, such as color difference, spots, and bubbles. In particular, dust removal pretreatment before the paper laminating process is especially important and directly affects the quality of the finished paper.

[0004] Regarding the aforementioned technologies, some dust removal methods may cause the paper surface to become contaminated again due to unreasonable design. For example, rotating brushes or roller brushes directly contact the paper surface for cleaning, which is difficult to effectively remove fine dust embedded in paper fibers or electrostatically adsorbed, resulting in poor dust removal effect. Utility Model Content

[0005] In order to improve the dust removal effect on the paper surface, this utility model provides a paper surface dust removal pretreatment device.

[0006] This utility model provides a paper surface dust removal pretreatment device, which adopts the following technical solution:

[0007] A paper surface dust removal pretreatment device includes a frame, a conveying mechanism, and a dust removal mechanism. The conveying mechanism includes a first conveying component, which includes a first mounting frame, a first conveying roller, and a first motor. The first mounting frame is fixedly mounted on the frame. A plurality of first conveying rollers are rotatably mounted on the first mounting frame. Multiple sets of first conveying rollers are arranged along the paper conveying direction. The first motor is mounted on the first mounting frame and drives the first conveying rollers to rotate.

[0008] The dust removal mechanism includes a dust suction component and a dust sweeping component. The dust suction component includes a dust suction plate and a dust suction pipe. The dust suction plate is fixedly installed on the first mounting frame. The suction end of the dust suction pipe is connected to the dust suction plate, and the outlet end of the dust suction pipe is connected to a suction source. The dust sweeping component includes a dust sweeping plate and a dust blowing pipe. The dust sweeping plate is fixedly installed on the first mounting frame. The outlet end of the dust blowing pipe is connected to the dust sweeping plate, and the inlet end of the dust blowing pipe is connected to a blowing source.

[0009] Preferably, multiple sets of the dust collection components are provided, and the dust sweeping components are arranged between two dust collection components along the paper conveying direction; multiple sets of dust sweeping components and dust collection components are arranged opposite each other along the plane of the paper.

[0010] Preferably, the dust sweeping assembly further includes an air pump, which is fixedly mounted on the frame and has a filter plate installed on it. The air pump is connected to the dust blowing pipe. The dust suction assembly further includes a vacuum cleaner, which is fixedly mounted on the frame and is connected to the suction pipe.

[0011] Preferably, the dust removal mechanism further includes a dust-adhesive assembly, which includes a dust-adhesive roller, a second motor, and a dustproof box. The dustproof box is fixedly installed on the frame, and the dust-adhesive roller is rotatably installed on the dustproof box. The upper end of the dustproof box has a sticking interface, and the dust-adhesive roller is located in the sticking interface. The second motor is fixedly installed on the dustproof box and is connected to the dust-adhesive roller in a transmission connection.

[0012] Preferably, the dust-adhesive assembly further includes a nozzle, a water supply pipe, and a drying roller. The water supply pipe is fixedly installed inside the dustproof box, with one end of the water supply pipe connected to a water source. Multiple nozzles are installed on the water supply pipe. The drying roller is rotatably installed inside the dustproof box, and the drying roller abuts against the dust-adhesive roller.

[0013] Preferably, a heating rod is installed inside the drying roller.

[0014] Preferably, the conveying mechanism further includes a second conveying assembly, which includes a second conveying roller, a second mounting frame, and a lifting cylinder. The second mounting frame is slidably mounted on the frame, the cylinder body of the lifting cylinder is fixedly mounted on the frame, the second mounting frame is fixedly connected to the piston rod of the lifting cylinder, and the second conveying roller is rotatably mounted on the second mounting frame.

[0015] Preferably, the conveying mechanism further includes an isolation plate and guide rollers. The isolation plate is fixedly installed on the frame and is located between the first mounting frame and the dust-adhesive roller. A guide port is provided on the isolation plate, and two guide rollers are installed opposite to each other on the isolation plate, with the guide rollers located inside the guide port.

[0016] Preferably, the conveying mechanism further includes a third conveying assembly, which includes a third mounting frame, a fourth mounting frame, a third conveying roller, a fourth conveying roller, and a third motor. The third mounting frame is fixedly mounted on the frame and located on one side of the dustproof box. The third conveying roller is rotatably mounted on the third mounting frame. The fourth mounting frame is fixedly mounted on the frame and located at the lower end of the first mounting frame. The fourth conveying roller is rotatably mounted on the fourth mounting frame. The third motor is fixedly mounted on the fourth mounting frame and is drively connected to the fourth conveying roller.

[0017] Preferably, a dustproof outer shell is fixedly installed on the outer end of the frame.

[0018] In summary, this utility model has at least one of the following beneficial technical effects:

[0019] 1. The current non-contact dust removal structure design avoids the risk of physical damage to the paper surface caused by mechanical brushes, making it especially suitable for high-basis-weight or coated paper. Simultaneously, utilizing airflow synergy, it blows away loose dust and collects it through negative pressure adsorption, effectively removing dust hidden in the paper fibers or dust adhered by static electricity. This significantly improves the efficiency of fine particle removal and solves the problem of secondary pollution caused by dust generated by traditional air-blowing methods. The dust removal process is both gentle and highly efficient, thus improving the dust removal effect.

[0020] 2. Adopting a modular "vacuum-sweep-vacuum" layout, the sweeping component is placed between two vacuuming components, forming a closed loop for dust treatment. The first vacuuming pre-cleans large particles, then blowing away deep-seated impurities, and finally a second vacuuming thoroughly collects escaped dust. The multiple symmetrical arrangement design ensures full-width coverage without dead angles, adapting to different paper widths and solving the problem of uneven dust removal caused by traditional single-point dust removal, resulting in localized residue.

[0021] 3. The adhesive roller, as the second stage of dust removal, is specifically designed to capture electrostatically adsorbed micro-dust that is difficult to remove with airflow. Generally, when paper is laminated, only one side of the paper is laminated. By placing the paper to be laminated face down, the probability of dust adhering to the paper surface is reduced, and it is easier for the adhesive roller to remove the dust. The dust box physically isolates the dust-adhesive process, preventing adhesive residue from contaminating the workshop environment; a second motor drives the adhesive roller to rotate at a uniform speed, achieving automated and continuous dust removal. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the hidden dustproof shell of an embodiment of the present utility model;

[0024] Figure 3 yes Figure 2 A magnified view of part A in the middle;

[0025] Figure 4 This is a schematic diagram of the paper being installed according to an embodiment of this utility model;

[0026] Figure 5 yes Figure 1 A diagram of the other side;

[0027] Figure 6 This is a cross-sectional view of the location of the dust-adhesive component.

[0028] Explanation of reference numerals in the attached drawings: 100, frame; 200, conveying mechanism; 210, first conveying assembly; 211, first mounting frame; 212, first conveying roller; 213, first motor; 220, second conveying assembly; 221, second conveying roller; 222, second mounting frame; 223, lifting cylinder; 230, third conveying assembly; 231, third mounting frame; 232, fourth mounting frame; 233, third conveying roller; 234, fourth conveying roller; 235, third motor; 240, partition plate; 250, guide roller; 26 0. Feed inlet; 300. Dust removal mechanism; 310. Dust collection assembly; 311. Dust collection plate; 312. Dust collection pipe; 313. Vacuum cleaner; 320. Dust sweeping assembly; 321. Dust sweeping plate; 322. Dust blowing pipe; 323. Air pump; 324. Dust sweeping brush roller; 325. Drive motor; 330. Dust adhesion assembly; 331. Dust adhesion roller; 332. Second motor; 333. Dustproof box; 334. Nozzle; 335. Water supply pipe; 336. Drying roller; 337. Heating rod; 338. Adhesive interface; 400. Dustproof outer shell. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1 To be continued Figure 6 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0031] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0034] This utility model discloses a paper surface dust removal pretreatment device. (Refer to...) Figures 1 to 6 A paper surface dust removal pretreatment device mainly includes a frame 100, a conveying mechanism 200, and a dust removal mechanism 300. The conveying mechanism 200 includes a first conveying component 210, which includes a first mounting frame 211, a first conveying roller 212, and a first motor 213. The first mounting frame 211 is fixedly mounted on the frame 100. Multiple first conveying rollers 212 are rotatably mounted on the first mounting frame 211. Multiple sets of first conveying rollers 212 are arranged along the paper conveying direction. The first motor 213 is mounted on the first mounting frame 211 and drives the first conveying rollers 212 to rotate.

[0035] The dust removal mechanism 300 includes a dust collection component 310 and a dust sweeping component 320. The dust collection component 310 includes a dust collection plate 311 and a dust collection pipe 312. The dust collection plate 311 is fixedly installed on the first mounting frame 211. The suction end of the dust collection pipe 312 is connected to the dust collection plate 311, and the outlet end of the dust collection pipe 312 is connected to the suction source. The dust sweeping component 320 includes a dust sweeping plate 321 and a dust blowing pipe 322. The dust sweeping plate 321 is fixedly installed on the first mounting frame 211. The outlet end of the dust blowing pipe 322 is connected to the dust sweeping plate 321, and the inlet end of the dust blowing pipe 322 is connected to the blowing source. Guide plates are fixedly installed inside both the dust collection plate 311 and the dust sweeping plate 321.

[0036] First, the dust-sweeping plate 321 blows up the dust on the paper surface, and then the suction plate 311 adsorbs the dust from the paper surface, achieving a non-contact dust removal structure design. This avoids the risk of physical damage to the paper surface caused by mechanical brushes, making it especially suitable for high-basis-weight or coated paper. Simultaneously, the airflow synergy, combining blowing away loose dust with negative pressure adsorption collection, effectively removes dust hidden in the paper fibers or dust adhered by static electricity, significantly improving the efficiency of fine particle removal and solving the problem of secondary pollution caused by dust generated by traditional air blowing methods. The dust removal process is both gentle and highly efficient, improving the dust removal effect.

[0037] Reference Figure 2 In some embodiments, multiple sets of dust collection components 310 are provided, and a dust sweeping component 320 is provided between two dust collection components 310 along the paper conveying direction; multiple sets of dust sweeping components 320 and dust collection components 310 are provided opposite to each other along the plane of the paper.

[0038] Adopting a modular "vacuum-sweep-vacuum" layout, the sweeping component 320 is placed between two vacuuming components 310, forming a closed loop for dust treatment. The first vacuuming pre-cleans large particles, followed by blowing to remove deep-seated impurities, and then a second vacuuming to thoroughly collect escaped dust. The multi-group symmetrical arrangement design ensures full-width coverage without dead angles, adapting to different paper widths and solving the problem of uneven dust removal in traditional single-point dust removal, which leads to localized residue.

[0039] Reference Figure 2 and Figure 3 In some embodiments, the dust sweeping assembly 320 further includes an air pump 323, which is fixedly mounted on the frame 100 and has a filter plate installed on it. The air pump 323 is connected to the dust blowing pipe 322. The dust collection assembly 310 further includes a vacuum cleaner 313, which is fixedly mounted on the frame 100 and is connected to the suction pipe 312. The air pump 323 and the filter plate achieve internal purification of the blowing airflow, preventing external environmental pollutants from being introduced onto the paper surface. The independent control modules of the vacuum cleaner 313 and the dust blowing air pump 323 can adjust the airflow intensity for different types of paper, reducing energy consumption and preventing excessive impact on the paper surface compared to traditional continuous high-pressure air blowing, thus systematically optimizing the energy efficiency ratio and operational flexibility.

[0040] Reference Figure 3 In some embodiments, the dust-sweeping assembly 320 further includes a dust-sweeping brush roller 324 and a drive motor 325. The dust-sweeping brush roller 324 is rotatably mounted on the dust-sweeping plate 321, and the drive motor 325 is fixedly mounted on the dust-sweeping plate 321. The drive motor 325 and the dust-sweeping brush roller 324 are connected via shaft transmission. The drive motor 325 drives the dust-sweeping brush roller 324 to rotate, brushing the paper surface and further improving the cleaning effect.

[0041] Reference Figure 2 , Figure 4 and Figure 6 In some embodiments, the dust removal mechanism 300 further includes a dust-adhesive assembly 330, which includes a dust-adhesive roller 331, a second motor 332, and a dustproof box 333. The dustproof box 333 is fixedly mounted on the frame 100, and the dust-adhesive roller 331 is rotatably mounted on the dustproof box 333. A bonding interface 338 is provided at the upper end of the dustproof box 333, and the dust-adhesive roller 331 is located in the bonding interface 338. The second motor 332 is fixedly mounted on the dustproof box 333 and is drively connected to the dust-adhesive roller 331. The adhesiveness of the dust-adhesive roller 331 is less than that of the adhesive used in normal coating, resulting in gentler adhesion without damaging the paper surface. As a second-stage dust removal method, the dust-adhesive roller 331 specifically captures electrostatically adsorbed micro-dust that is difficult to remove by airflow. Generally, when paper is laminated, only one side of the paper is laminated. By placing the paper to be laminated face down, the probability of dust adhering to the paper surface can be reduced, and it can be easily removed by the dust-adhesive roller 331. The dust box 333 physically isolates the dust-adhesion process, preventing adhesive residue from polluting the workshop environment; the second motor 332 drives the dust-adhesion roller 331 to rotate at a uniform speed, realizing automated and continuous dust removal.

[0042] Reference Figure 6 In some embodiments, the adhesive assembly 330 further includes a nozzle 334, a water supply pipe 335, and a drying roller 336. The water supply pipe 335 is fixedly installed inside the dustproof box 333, with one end connected to a water source. Multiple nozzles 334 are mounted on the water supply pipe 335. The drying roller 336 is rotatably installed inside the dustproof box 333, and abuts against the adhesive roller 331. Through the self-cleaning system—the nozzles 334 and the water supply pipe 335—the dust layer accumulated on the surface of the adhesive roller 331 is automatically washed away, and the drying roller 336 quickly restores its stickiness, extending the service life of the adhesive roller 331. The integrated water washing and drying design avoids the frequent downtime and replacement caused by dust saturation in traditional adhesive rollers 331, significantly reducing consumable costs.

[0043] Reference Figure 6 In some embodiments, a heating rod 337 is installed inside the drying roller 336. The heating rod 337 built into the drying roller 336 enables precise temperature control drying, quickly restoring the cleaned dust roller 331 to its working state and adapting to the pace of high-speed production lines; the heat energy is directed to the inside of the roller body, preventing high-temperature airflow from contacting the paper and causing deformation, thus ensuring process safety.

[0044] Reference Figure 2In some embodiments, the conveying mechanism 200 further includes a second conveying assembly 220, which includes a second conveying roller 221, a second mounting frame 222, and a lifting cylinder 223. The second mounting frame 222 is slidably mounted on the frame 100, and the cylinder body of the lifting cylinder 223 is fixedly mounted on the frame 100. The second mounting frame 222 is fixedly connected to the piston rod of the lifting cylinder 223. The second conveying roller 221 is rotatably mounted on the second mounting frame 222, and a motor is mounted on the second mounting frame 222 to drive the second conveying roller 221 to rotate. When a large amount of dust adheres to the sticky roller 331 and cleaning is required, the conveying mechanism 200 stops conveying paper and lifts the second mounting frame 222 via the lifting cylinder 223, causing the paper to detach from the upper surface of the sticky roller 331. Then, the surface of the sticky roller 331 is sprayed with high pressure through the nozzle 334 to remove the dust adhering to the surface. The drying roller 336 is then used to absorb and dry the water on the surface of the sticky roller 331, while keeping the paper away from the sticky roller 331. This reduces the impact of moisture and high temperature on the paper, achieving the purpose of cleaning the sticky roller 331 quickly and safely.

[0045] Reference Figure 2 In some embodiments, the conveying mechanism 200 further includes a partition plate 240 and guide rollers 250. The partition plate 240 is fixedly mounted on the frame 100 and is located between the first mounting frame 211 and the dust-adhesive roller 331. A guide port 260 is provided on the partition plate 240, and two guide rollers 250 are mounted opposite each other on the partition plate 240, with the guide rollers 250 located within the guide port 260. The partition plate 240 creates a dust removal zone to achieve graded dust removal, and the guide port 260 limits the paper to contact the dust-adhesive roller 331 only through a single channel, avoiding secondary contamination of the already dust-removed surface.

[0046] Reference Figure 2In some embodiments, the conveying mechanism 200 further includes a third conveying assembly 230, which includes a third mounting frame 231, a fourth mounting frame 232, a third conveying roller 233, a fourth conveying roller 234, and a third motor 235. The third mounting frame 231 is fixedly mounted on the frame 100 and is located on one side of the dustproof box 333. The third conveying roller 233 is rotatably mounted on the third mounting frame 231. The fourth mounting frame 232 is fixedly mounted on the frame 100 and is located at the lower end of the first mounting frame 211. The fourth conveying roller 234 is rotatably mounted on the fourth mounting frame 232. A motor is mounted on the third mounting frame 231 to drive the third conveying roller 233 to rotate. The paper on the second conveyor assembly 220 is flipped over by the third conveyor roller 233 of the third conveyor assembly 230 so that the paper to be laminated is facing up. Then it is conveyed to the fourth conveyor roller 234 of the fourth conveyor assembly. The fourth conveyor roller 234 is driven to rotate by the third motor 235 to continue conveying the paper to the next process, namely the lamination process, so as to facilitate the laminating machine to laminate the paper.

[0047] Reference Figure 5 In some embodiments, a dustproof housing 400 is fixedly installed on the outer end of the frame 100. The dustproof housing 400 serves to prevent external dust from entering the dust removal area and reduce noise.

[0048] The implementation principle of the paper surface dust removal pretreatment device according to this utility model embodiment is as follows:

[0049] First, the dust sweeping plate 321 blows up the dust on the paper surface, and then the dust suction plate 311 adsorbs the dust on the paper surface, realizing a non-contact dust removal structure design. It adopts a "suction-sweep-suction" modular layout, with the dust sweeping component 320 placed between the two dust suction components 310 to form a closed loop of dust treatment. The first dust suction pre-cleans large particles, then blows and removes deep impurities, and then the second dust suction thoroughly collects the escaped dust. The dust sticking roller 331 serves as the second stage of dust removal, specifically capturing electrostatically adsorbed micro-dust that is difficult to remove by airflow.

[0050] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A paper surface dust removal pretreatment device, characterized in that: The device includes a frame (100), a conveying mechanism (200), and a dust removal mechanism (300). The conveying mechanism (200) includes a first conveying assembly (210), which includes a first mounting frame (211), a first conveying roller (212), and a first motor (213). The first mounting frame (211) is fixedly mounted on the frame (100). A plurality of first conveying rollers (212) are rotatably mounted on the first mounting frame (211). Multiple sets of first conveying rollers (212) are arranged along the paper conveying direction. The first motor (213) is mounted on the first mounting frame (211) and drives the first conveying rollers (212) to rotate. The dust removal mechanism (300) includes a dust collection component (310) and a dust sweeping component (320). The dust collection component (310) includes a dust collection plate (311) and a dust collection pipe (312). The dust collection plate (311) is fixedly installed on the first mounting frame (211). The suction end of the dust collection pipe (312) is connected to the dust collection plate (311), and the outlet end of the dust collection pipe (312) is connected to the suction source. The dust sweeping component (320) includes a dust sweeping plate (321) and a dust blowing pipe (322). The dust sweeping plate (321) is fixedly installed on the first mounting frame (211). The outlet end of the dust blowing pipe (322) is connected to the dust sweeping plate (321), and the inlet end of the dust blowing pipe (322) is connected to the blowing source.

2. The paper surface dust removal pretreatment device according to claim 1, characterized in that: Multiple sets of the dust collection components (310) are provided, and the dust sweeping components (320) are arranged between two dust collection components (310) along the paper conveying direction; multiple sets of the dust sweeping components (320) and the dust collection components (310) are arranged opposite each other along the plane of the paper.

3. The paper surface dust removal pretreatment device according to claim 2, characterized in that: The dust sweeping assembly (320) also includes an air pump (323), which is fixedly mounted on the frame (100). A filter plate is installed on the air pump (323), and the air pump (323) is connected to the dust blowing pipe (322). The dust suction assembly (310) also includes a vacuum cleaner (313), which is fixedly mounted on the frame (100), and the vacuum cleaner (313) is connected to the suction pipe (312).

4. The paper surface dust removal pretreatment apparatus according to any one of claims 1-3, characterized in that: The dust removal mechanism (300) further includes a dust-adhesive assembly (330), which includes a dust-adhesive roller (331), a second motor (332), and a dustproof box (333). The dustproof box (333) is fixedly installed on the frame (100), and the dust-adhesive roller (331) is rotatably installed on the dustproof box (333). The dustproof box (333) has a sticking interface (338) at its upper end, and the dust-adhesive roller (331) is located in the sticking interface (338). The second motor (332) is fixedly installed on the dustproof box (333), and the second motor (332) is connected to the dust-adhesive roller (331) in a transmission connection.

5. The paper surface dust removal pretreatment device according to claim 4, characterized in that: The dust-adhesive assembly (330) also includes a nozzle (334), a water supply pipe (335), and a drying roller (336). The water supply pipe (335) is fixedly installed inside the dustproof box (333). One end of the water supply pipe (335) is connected to a water source. Multiple nozzles (334) are installed on the water supply pipe (335). The drying roller (336) is rotatably installed inside the dustproof box (333). The drying roller (336) abuts against the dust-adhesive roller (331).

6. The paper surface dust removal pretreatment device according to claim 5, characterized in that: A heating rod (337) is installed inside the drying roller (336).

7. The paper surface dust removal pretreatment device according to claim 4, characterized in that: The conveying mechanism (200) further includes a second conveying assembly (220), which includes a second conveying roller (221), a second mounting frame (222), and a lifting cylinder (223). The second mounting frame (222) is slidably mounted on the frame (100), the cylinder body of the lifting cylinder (223) is fixedly mounted on the frame (100), the second mounting frame (222) is fixedly connected to the piston rod of the lifting cylinder (223), and the second conveying roller (221) is rotatably mounted on the second mounting frame (222).

8. The paper surface dust removal pretreatment device according to claim 4, characterized in that: The conveying mechanism (200) further includes an isolation plate (240) and a guide roller (250). The isolation plate (240) is fixedly installed on the frame (100) and is located between the first mounting frame (211) and the dust-adhesive roller (331). A guide port (260) is provided on the isolation plate (240), and two guide rollers (250) are installed opposite to each other on the isolation plate (240). The guide rollers (250) are located inside the guide port (260).

9. The paper surface dust removal pretreatment device according to claim 7, characterized in that: The conveying mechanism (200) further includes a third conveying assembly (230), which includes a third mounting frame (231), a fourth mounting frame (232), a third conveying roller (233), a fourth conveying roller (234), and a third motor (235). The third mounting frame (231) is fixedly mounted on the frame (100) and is located on one side of the dustproof box (333). The third conveying roller (233) is rotatably mounted on the third mounting frame (231). The fourth mounting frame (232) is fixedly mounted on the frame (100) and is located at the lower end of the first mounting frame (211). The fourth conveying roller (234) is rotatably mounted on the fourth mounting frame (232). The third motor (235) is fixedly mounted on the fourth mounting frame (232) and is connected to the fourth conveying roller (234) in a transmission connection.

10. The paper surface dust removal pretreatment device according to claim 1, characterized in that: A dustproof shell (400) is fixedly installed on the outer end of the frame (100).

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