A raw paper surface dust and static electricity removing pretreatment mechanism

Abstract

The utility model provides a kind of raw paper surface dust removal and static electricity pretreatment mechanism, belong to raw paper surface processing machinery technical field, including drying assembly, high-pressure fan assembly is installed on drying assembly, the side of high-pressure fan assembly is provided with conveying roller, the other side of high-pressure fan assembly is provided with static electricity removal component, the mounting bracket of drying assembly is installed with the rotating mechanism for rotating cleaning the broken raw paper attached on conveying roller, the utility model, by the setting of roll brush, flexible brush plate, scraper block, by motor drive roll brush rotation to the broken raw paper attached on conveying roller surface is scraped down simultaneously, by scraper block reciprocating sliding cleaning between conveying roller and roll brush gap, prevent conveying roller scratch raw paper and produce new static electricity, while driving flexible brush plate to raw paper both sides reciprocating sliding cleaning broken raw paper adhered on raw paper surface when roll brush rotates, it is favorable for the subsequent dust removal and static electricity to carry out.

Description

Technical Field

[0001] This utility model relates to the field of paper surface treatment machinery, and more specifically, to a pretreatment mechanism for dust removal and static electricity removal on the surface of paper. Background Technology

[0002] Base paper refers to paper rolls or sheets that have not undergone deep processing such as coating, printing, or lamination, but have only undergone basic processes such as pulping and papermaking. In the production process, base paper first obtains qualified pulp through pulping, then undergoes papermaking, which involves dewatering and drying to produce continuous paper webs, and finally undergoes post-processing to improve performance and roll it up.

[0003] In existing technology, the dried continuous paper web is conveyed by conveyor rollers. High-pressure fans are installed on both the top and bottom sides of the paper web to remove dust. After dust removal, the paper web is then subjected to electrostatic removal to prevent it from affecting its subsequent use as a substrate. During this process, the surface of the freshly dried paper web is covered with shredded paper. Directly removing the dust with the high-pressure fans results in the shredded paper adhering to the surface of the paper web, requiring the high-pressure fans to be powered up to remove it. However, at high power, the paper web may bulge or dent in some areas, affecting its quality. In addition, during the continuous conveying of the paper web, the shredded paper adheres to the conveyor rollers. If not cleaned in time, it may scratch the paper web and increase friction, generating new static electricity during subsequent conveying.

[0004] How to invent a dust removal and static electricity removal pretreatment mechanism for the surface of raw paper to improve these problems has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] To overcome the above deficiencies, this utility model provides a pretreatment mechanism for dust removal and static electricity removal on the surface of raw paper, which aims to improve the problems of clumps of raw paper adhering to the surface of freshly dried raw paper and the problem of raw paper adhering to the conveyor rollers scratching the raw paper and increasing friction to generate new static electricity.

[0006] This utility model is implemented as follows: This utility model provides a pretreatment mechanism for dust removal and static electricity removal on the surface of raw paper, including a drying component, a high-pressure blower component mounted on the drying component, a conveyor roller on one side of the high-pressure blower component, and a static electricity removal component on the other side of the high-pressure blower component. A rotating mechanism for rotating and cleaning shredded raw paper adhering to the conveyor roller is mounted on the mounting frame of the drying component. A sliding mechanism for cleaning shredded raw paper adhering to both sides of the raw paper is provided on the side of the rotating mechanism near the drying component. A suction mechanism for collecting fallen shredded raw paper is mounted on the sliding mechanism. Flexible brush plates are mounted on the sliding mechanism and located on both sides of the raw paper. An adjustment mechanism for adjusting the distance between the flexible brush plates and the raw paper is mounted on the sliding mechanism. A reciprocating mechanism for cleaning the gap between the rotating mechanism and the conveyor roller is provided on the side of the rotating mechanism away from the drying component.

[0007] Furthermore, the rotating mechanism includes a base mounted on the drying assembly, a rotating roller rotatably mounted on the base, a roller brush mounted on the roller, the roller brush being located on the top side of the conveying roller and in contact with the conveying roller, and a motor mounted on the base, the main shaft of the motor being mounted on the rotating roller.

[0008] Furthermore, the sliding mechanism includes a stand, which is mounted on the drying assembly. The stand has a sliding groove, and a limit rod is mounted on the stand. A square block is slidably mounted on the limit rod and is slidably mounted in the sliding groove. One end of the square block is hinged to a hinge plate, and a gear disk is hinged to the hinge plate. The gear disk is mounted on a rotating roller. The other end of the square block is mounted to a rectangular frame, which has a slot. The raw paper is slidably placed in the slot.

[0009] Furthermore, the suction mechanism includes a flexible hose, which is installed on the high-pressure blower assembly. A connection hole is provided on the rectangular frame, and the flexible hose is connected to the rectangular frame through the connection hole. A cavity is provided inside the rectangular frame, and the cavity communicates with the flexible hose through the connection hole. Suction holes are provided on the rectangular frame, and the suction holes communicate with the cavity. The suction holes are located on both sides of the flexible brush plate.

[0010] Furthermore, the adjustment mechanism includes a threaded rod, which is rotatably mounted on a rectangular frame. A screw block is mounted on the threaded rod, and a limit slider is threadedly mounted on the threaded rod. The limit slider is slidably mounted on the rectangular frame, and a flexible brush plate is mounted on the limit slider. A threaded hole is provided on the limit slider, and the limit slider is threadedly mounted on the threaded rod through the threaded hole.

[0011] Furthermore, the reciprocating mechanism includes an arc-shaped seat, which is mounted on the drying assembly. A drive shaft is rotatably mounted on the ear plate on the top side of the arc-shaped seat. A drive gear is mounted on the drive shaft, which meshes with a gear disc. A spline roller is mounted on the drive shaft. A sliding groove is provided on the arc-shaped seat, and a scraper is slidably mounted in the sliding groove. One side of the scraper is in contact with both the conveying roller and the brush. A drive shaft block is mounted on the top side of the scraper, and the drive shaft block is slidably mounted on the spline roller.

[0012] Furthermore, the spline roller is provided with a cross-shaped arc groove, and the drive shaft block is slidably installed in the cross-shaped arc groove.

[0013] The beneficial effects of this utility model are: By using roller brushes, flexible brush plates, scrapers, etc., the system achieves the following: during the continuous conveying of freshly dried raw paper to the static electricity removal and dust removal device via conveyor rollers, the roller brushes driven by the motor scrape off the shredded raw paper adhering to the surface of the conveyor rollers. At the same time, the scrapers reciprocate and clean the gap between the conveyor rollers and the roller brushes, preventing the conveyor rollers from scratching the raw paper and generating new static electricity. Simultaneously, the rotation of the roller brushes drives the flexible brush plates to reciprocate and clean the shredded raw paper adhering to the surface of the raw paper, which is beneficial for subsequent dust removal and static electricity removal.

[0014] By incorporating threaded rods, limiting sliders, and other features, the threaded rod is rotated on the rectangular frame by rotating the screw block. The rotation of the threaded rod causes the limiting sliders on both sides to slide closer or further apart, thereby causing the flexible brush plates on both sides of the base paper to move closer or further apart to adapt to base paper of different thicknesses, further improving the wide applicability of the structure. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a pretreatment mechanism for dust removal and static electricity removal on the surface of raw paper provided by an embodiment of this utility model; Figure 2 This utility model provides a dust removal and static electricity removal pretreatment mechanism for the surface of raw paper. Figure 1 A magnified structural diagram of part A in the middle; Figure 3 This utility model provides a dust removal and static electricity removal pretreatment mechanism for the surface of raw paper. Figure 1 A magnified structural diagram of part B in the middle section; Figure 4 This is a partial structural schematic diagram of a dust removal and static electricity removal pretreatment mechanism for the surface of raw paper provided in this embodiment of the utility model; Figure 5 This is a partial structural schematic diagram of a rectangular frame of a pretreatment mechanism for dust removal and static electricity removal on the surface of raw paper, provided by an embodiment of this utility model. Figure 6 This is a partial structural schematic diagram of the cavity of a dust removal and static electricity removal pretreatment mechanism for the surface of raw paper provided by an embodiment of this utility model; Figure 7 This is a partial structural schematic diagram of the bow-shaped frame of a pretreatment mechanism for dust removal and static electricity removal on the surface of raw paper provided by an embodiment of this utility model.

[0017] In the diagram: 1. Drying assembly; 2. High-pressure blower assembly; 3. Antistatic assembly; 4. Conveyor roller; 5. Rotating mechanism; 51. Base; 52. Rotating roller; 53. Roller brush; 54. Motor; 6. Sliding mechanism; 61. Stand; 62. Slide groove; 63. Limiting rod; 64. Square block; 65. Hinge plate; 66. Gear disk; 67. Rectangular frame; 7. Suction mechanism; 71. Suction hole; 72. Cavity; 73. Connecting hole; 74. Hose; 8. Adjusting mechanism; 81. Threaded rod; 82. Tightening block; 83. Limiting slider; 84. Threaded hole; 9. Reciprocating mechanism; 91. Bow-shaped seat; 92. Drive shaft; 93. Splined roller; 94. Sliding groove; 95. Scraper block; 96. Drive shaft block; 97. Cross-shaped arc groove; 10. Flexible brush plate. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Example

[0019] Reference Figure 1-7 A pretreatment mechanism for dust removal and static electricity removal on the surface of raw paper includes a drying component 1, a high-pressure blower component 2 mounted on the drying component 1, a conveyor roller 4 on one side of the high-pressure blower component 2, and a static electricity removal component 3 on the other side of the high-pressure blower component 2. A rotating mechanism 5 for rotating and cleaning the shredded raw paper attached to the conveyor roller 4 is mounted on the mounting frame of the drying component 1. A sliding mechanism 6 for cleaning the shredded raw paper attached to both sides of the raw paper is located on the side of the rotating mechanism 5 near the drying component 1. A suction mechanism 7 for collecting the detached shredded raw paper is mounted on the sliding mechanism 6. A flexible brush plate 10 is mounted on the sliding mechanism 6 and located on both sides of the raw paper. An adjustment mechanism 8 for adjusting the distance between the flexible brush plate 10 and the raw paper is mounted on the sliding mechanism 6. A reciprocating mechanism 9 for cleaning the gap between the rotating mechanism 5 and the conveyor roller 4 is located on the side of the rotating mechanism 5 away from the drying component 1.

[0020] During the production of raw paper, after drying by the drying assembly 1, it is conveyed by the conveyor roller 4 to the bottom of the high-pressure blower assembly 2. Simultaneous suction from both sides cleans the surface dust. After cleaning, it passes through the static electricity removal assembly 3 for electrostatic removal. This is common knowledge in the field and will not be elaborated here. During the conveying process, the rotating mechanism 5 is activated. As the conveyor roller 4 rotates, the axial surface of the conveyor roller 5 is cleaned to prevent shredded raw paper from adhering to the conveyor roller 4, which could cause friction damage or generate new static electricity when the conveyor roller 4 contacts the raw paper. Furthermore, the rotation of the rotating mechanism 5 drives the sliding mechanism 6 to move the conveyed raw paper between the two sides. The flexible brush plate 10 slides back and forth on both sides of the paper to scrape off the shredded paper adhering to the paper surface. This prevents the sticky shredded paper from being unable to be cleaned during dust removal when passing through the high-pressure blower assembly 2. In addition, to prevent the shredded paper from getting stuck in the gap between the rotating mechanism 5 and the conveying roller 4 when the rotating mechanism 5 rotates, the reciprocating mechanism 9 is driven by the rotating mechanism 5 to scrape off the shredded paper in the gap. This improves the scientific nature of the structure. When dealing with different paper thicknesses, the flexible brush plate 10 can always be in contact with both sides of the paper by adjusting the mechanism 8, which further improves the scientific nature of the structure.

[0021] Reference Figures 1-7 In this utility model, the rotating mechanism 5 includes a base 51, which is mounted on the drying assembly 1. A rotating roller 52 is rotatably mounted on the base 51, and a roller brush 53 is mounted on the roller 52. The roller brush 53 is located on the top side of the conveying roller 4 and is in contact with the conveying roller 4. A motor 54 is mounted on the base 51, and the main shaft of the motor 54 is mounted on the rotating roller 52.

[0022] Start the motor 54. The main shaft of the motor 54 drives the rotating roller 52 to rotate. The rotation of the rotating roller 52 drives the roller brush 53 to rotate. The rotation of the roller brush 53 is opposite to the rotation direction of the conveyor roller 4, so that when it contacts the axial surface of the conveyor roller 4, it scrapes off the shredded raw paper attached to the conveyor roller 4.

[0023] Reference Figures 1-6 In this utility model, the sliding mechanism 6 includes a stand 61, which is mounted on the drying assembly 1. The stand 61 has a sliding groove 62, and a limit rod 63 is mounted on the stand 61. A square block 64 is slidably mounted on the limit rod 63 and is slidably mounted in the sliding groove 62. One end of the square block 64 is hinged to a hinge plate 65, and a gear disk 66 is hinged to the hinge plate 65. The gear disk 66 is mounted on the rotating roller 52. The other end of the square block 64 is mounted to a rectangular frame 67, which has a groove. The raw paper is slidably placed in the groove.

[0024] When the roller 52 rotates, it drives the gear disk 66 to rotate. Since the hinge plate 65 is located on one side of the gear disk 66, the hinge plate 65 rotates, which in turn drives the square block 64 to slide back and forth in the slide groove 62. The back and forth sliding of the square block 64 drives the rectangular frame 67 to slide back and forth on both sides of the paper, thereby driving the flexible brush plate 10 to slide on both sides of the paper to scrape off and clean the attached shredded paper.

[0025] Reference Figures 1-6 In this utility model, the suction mechanism 7 includes a flexible hose 74, which is installed on the high-pressure blower assembly 2. A connecting hole 73 is provided on the rectangular frame 67, and the flexible hose 74 is connected to the rectangular frame 67 through the connecting hole 73. A cavity 72 is provided inside the rectangular frame 67, and the cavity 72 communicates with the flexible hose 74 through the connecting hole 73. A suction hole 71 is provided on the rectangular frame 67, and the suction hole 71 communicates with the cavity 72. The suction hole 71 is located on both sides of the flexible brush plate 10.

[0026] The scraped paper scraped off by the flexible brush plate 10 is sucked into the cavity 72 inside the rectangular frame 67 through the suction hole 71, and then enters the hose 74 through the connection hole 73 and then enters the high-pressure blower assembly 2 for collection, which further improves the practicality of the structure.

[0027] Reference Figures 1-6 In this utility model, the adjusting mechanism 8 includes a threaded rod 81, which is rotatably mounted on a rectangular frame 67. A screw block 82 is mounted on the threaded rod 81, and a limit slider 83 is threadedly mounted on the threaded rod 81. The limit slider 83 is slidably mounted on the rectangular frame 67, and a flexible brush plate 10 is mounted on the limit slider 83. A threaded hole 84 is provided on the limit slider 83, and the limit slider 83 is threadedly mounted on the threaded rod 81 through the threaded hole 84.

[0028] During the conveying of base paper of different thicknesses, the screw block 82 is rotated to drive the threaded rod 81 to rotate on the rectangular frame 67. The rotation of the threaded rod 81 causes the limiting sliders 83 on both sides to slide closer or further away from each other, thereby causing the flexible brush plates 10 on both sides of the base paper to move closer or further away from each other to adapt to base paper of different thicknesses.

[0029] Reference Figures 1-7 In this utility model, the reciprocating mechanism 9 includes an arc-shaped seat 91, which is mounted on the drying assembly 1. A transmission shaft 92 is rotatably mounted on the ear plate on the top side of the arc-shaped seat 91. A transmission gear 98 is mounted on the transmission shaft 92, which meshes with the gear disk 66. A spline roller 93 is mounted on the transmission shaft 92. A sliding groove 94 is provided on the arc-shaped seat 91. A scraper block 95 is slidably mounted in the sliding groove 94. One side of the scraper block 95 is in contact with both the conveying roller 4 and the roller brush 53. A transmission shaft block 96 is mounted on the top side of the scraper block 95, and the transmission shaft block 96 is slidably mounted on the spline roller 93.

[0030] When the gear disk 66 rotates, it drives the transmission gear 98 to rotate. The rotation of the transmission gear 98 drives the transmission shaft 92 to rotate. The rotation of the transmission shaft 92 drives the transmission shaft block 96 to slide back and forth on the top side of the bow-shaped seat 91 through the spline roller 93. This causes the top side of the scraper block 95 to slide back and forth on the bow-shaped seat 91. During the back and forth sliding process of the scraper block 95, the scraps of raw paper remaining in the gap between the conveyor roller 4 and the roller brush 53 are scraped off from both sides, further improving the scientific nature of the structure.

[0031] Reference Figures 1-7 In this utility model, a cross-shaped arc groove 97 is provided on the spline roller 93, and the transmission shaft block 96 is slidably installed in the cross-shaped arc groove 97.

[0032] By setting the cross-shaped arc groove 97, the spline roller 93 drives the transmission shaft block 96 to slide along the path of the cross-shaped arc groove 97 when it rotates, thereby realizing the reciprocating sliding process of the transmission shaft block 96 and further improving the ease of use of the structure.

[0033] The working principle of this pretreatment mechanism for dust removal and static electricity removal on the surface of raw paper is as follows: During the conveying of raw paper of different thicknesses, the rotating screw block 82 drives the threaded rod 81 to rotate on the rectangular frame 67. The rotation of the threaded rod 81 drives the limiting sliders 83 on both sides to slide closer or further apart, thereby driving the flexible brush plates 10 on both sides of the raw paper to move closer or further apart to adapt to raw paper of different thicknesses. After the setting is completed, the motor 54 is started. The main shaft of the motor 54 drives the rotating roller 52 to rotate. The rotation of the rotating roller 52 drives the roller brush 53 to rotate. The rotation of the roller brush 53 is opposite to the rotation direction of the conveying roller 4, so that when it contacts the axial surface of the conveying roller 4, it scrapes off the shredded raw paper attached to the conveying roller 4. At the same time, the rotation of the rotating roller 52 drives the gear disk 66 to rotate. Since the hinged hinge plate 65 is located on one side of the gear disk 66, the rotation of the gear disk 66 causes the hinge plate 65 to rotate, thereby driving the square block 64 to slide back and forth in the chute 62. Block 64 reciprocates, causing the rectangular frame 67 to reciprocate on both sides of the raw paper. This causes the flexible brush plate 10 to slide on both sides of the raw paper, scraping off the attached shredded raw paper. The shredded raw paper scraped off by the flexible brush plate 10 is sucked into the cavity 72 inside the rectangular frame 67 through the suction hole 71, and then enters the hose 74 through the connection hole 73 and then enters the high-pressure blower assembly 2 for collection. During this process, in order to prevent the shredded raw paper from getting stuck in the gap between the conveying roller 4 and the roller brush 53, the gear disk 66 rotates, driving the transmission gear 98 to rotate. The rotation of the transmission gear 98 drives the transmission shaft 92 to rotate. The rotation of the transmission shaft 92 drives the transmission shaft block 96 to reciprocate on the top side of the bow-shaped seat 91 through the spline roller 93. This causes the top side of the scraper block 95 to reciprocate on the bow-shaped seat 91. During the reciprocating sliding of the scraper block 95, the shredded raw paper remaining in the gap between the conveying roller 4 and the roller brush 53 is scraped off from both sides, further improving the scientific nature of the structure.

[0034] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pretreatment mechanism for dust removal and static electricity removal on the surface of raw paper, comprising a drying assembly (1), a high-pressure blower assembly (2) mounted on the drying assembly (1), a conveying roller (4) provided on one side of the high-pressure blower assembly (2), and a static electricity removal assembly (3) provided on the other side of the high-pressure blower assembly (2), characterized in that, The mounting frame of the drying assembly (1) is equipped with a rotating mechanism (5) for rotating and cleaning the shredded paper attached to the conveying roller (4). A sliding mechanism (6) for cleaning the shredded paper attached to both sides of the paper is provided on the side of the rotating mechanism (5) close to the drying assembly (1). A suction mechanism (7) for collecting the shed shredded paper is installed on the sliding mechanism (6). A flexible brush plate (10) is installed on the sliding mechanism (6). The flexible brush plate (10) is located on both sides of the paper. An adjustment mechanism (8) for adjusting the distance between the flexible brush plate (10) and the paper is installed on the sliding mechanism (6). A reciprocating mechanism (9) for cleaning the gap between the rotating mechanism (5) and the conveying roller (4) is provided on the side of the rotating mechanism (5) away from the drying assembly (1).

2. The pretreatment mechanism for dust removal and static electricity removal on the surface of raw paper according to claim 1, characterized in that, The rotating mechanism (5) includes a base (51), which is mounted on the drying assembly (1). A rotating roller (52) is rotatably mounted on the base (51). A roller brush (53) is mounted on the rotating roller (52). The roller brush (53) is located on the top side of the conveying roller (4) and is in contact with the conveying roller (4). A motor (54) is mounted on the base (51), and the main shaft of the motor (54) is mounted on the rotating roller (52).

3. The pretreatment mechanism for dust removal and static electricity removal on the surface of raw paper according to claim 2, characterized in that, The sliding mechanism (6) includes a stand (61), which is installed on the drying assembly (1). A sliding groove (62) is provided on the stand (61). A limit rod (63) is installed on the stand (61). A square block (64) is slidably installed on the limit rod (63). The square block (64) is slidably installed in the sliding groove (62). A hinge plate (65) is hinged to one end of the square block (64). A gear disk (66) is hinged to the hinge plate (65). The gear disk (66) is installed on the rotating roller (52). A rectangular frame (67) is installed at the other end of the square block (64). A groove is provided on the rectangular frame (67). The raw paper is slidably placed in the groove.

4. The pretreatment mechanism for dust removal and static electricity removal on the surface of raw paper according to claim 3, characterized in that, The suction mechanism (7) includes a hose (74), which is installed on the high-pressure blower assembly (2). A connection hole (73) is provided on the rectangular frame (67). The hose (74) is connected to the rectangular frame (67) through the connection hole (73). A cavity (72) is provided inside the rectangular frame (67). The cavity (72) is connected to the hose (74) through the connection hole (73). A suction hole (71) is provided on the rectangular frame (67). The suction hole (71) is connected to the cavity (72). The suction hole (71) is located on both sides of the flexible brush plate (10).

5. The pretreatment mechanism for dust removal and static electricity removal on the surface of raw paper according to claim 4, characterized in that, The adjustment mechanism (8) includes a threaded rod (81), which is rotatably mounted on a rectangular frame (67). A screw block (82) is mounted on the threaded rod (81). A limit slider (83) is threadedly mounted on the threaded rod (81). The limit slider (83) is slidably mounted on the rectangular frame (67). A flexible brush plate (10) is mounted on the limit slider (83). A threaded hole (84) is provided on the limit slider (83). The limit slider (83) is threadedly mounted on the threaded rod (81) through the threaded hole (84).

6. The pretreatment mechanism for dust removal and static electricity removal on the surface of raw paper according to claim 5, characterized in that, The reciprocating mechanism (9) includes an arc-shaped seat (91), which is mounted on the drying assembly (1). A drive shaft (92) is rotatably mounted on the ear plate on the top side of the arc-shaped seat (91). A drive gear (98) is mounted on the drive shaft (92), which meshes with the gear disk (66). A spline roller (93) is mounted on the drive shaft (92). A sliding groove (94) is provided on the arc-shaped seat (91). A scraper block (95) is slidably mounted in the sliding groove (94). One side of the scraper block (95) is in contact with both the conveying roller (4) and the roller brush (53). A drive shaft block (96) is mounted on the top side of the scraper block (95), which is slidably mounted on the spline roller (93).

7. The pretreatment mechanism for dust removal and static electricity removal on the surface of raw paper according to claim 6, characterized in that, The spline roller (93) has a cross-shaped arc groove (97), and the drive shaft block (96) is slidably installed in the cross-shaped arc groove (97).

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